WO2023056869A1

WO2023056869A1 - Cooking utensil

Info

Publication number: WO2023056869A1
Application number: PCT/CN2022/122172
Authority: WO
Inventors: 司鹏; 唐相伟
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: 2022-09-28
Publication date: 2023-04-13
Also published as: CN115944204A

Abstract

A cooking utensil (100), comprising: a box body (1), a steam inlet and oxygen exhaust system (3), and an oxygen inlet and steam exhaust system (4). The box body (1) comprises an inner cavity (2). The steam inlet and oxygen exhaust system (3) is disposed on the box body (1), the steam inlet and oxygen exhaust system (3) being capable of venting steam to a top of the inner cavity (2). The oxygen inlet and steam exhaust system (4) is disposed on the box body (1), the oxygen inlet and steam exhaust system (4) being capable of discharging steam which is in the inner cavity.

Description

cooking utensils

Cross References to Related Applications

This application is based on a Chinese patent application with application number 202111177708.0 and a filing date of October 9, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of cooking utensils, in particular to a cooking utensil.

Background technique

The cooking utensils disclosed in the related art achieve the purpose of exhausting the oxygen in the cooking cavity by quickly injecting steam into the cooking cavity. Since the steam flows into the cooking cavity at a high speed, it will be strongly entrained with the air, resulting in a slow rate of oxygen discharge, and , when there is high-temperature steam in the cooking cavity for wet roasting, since most of the cooking cavity is filled with steam, in order to increase the oxygen content in the cooking cavity, the injection of steam is generally reduced, and the slow dissipation of steam itself reduces the amount of steam content, in order to achieve the purpose of increasing the oxygen content in the cooking cavity, so the rate of oxygen increase and oxygen discharge will be slow, so that the oxygen content in the cooking cavity cannot be adjusted quickly.

application content

The present application aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. For this reason, the application proposes a cooking utensil, which can quickly adjust the oxygen content in the inner cavity, so as to quickly complete the switching of different cooking modes, and keep the oxygen content in the inner cavity at the optimum level under different cooking modes. within an appropriate range, thereby making the cooking utensils have a better cooking effect on food.

The cooking appliance according to the embodiment of the present application includes: a box body, the box has an inner cavity; a steam intake and exhaust system, the steam intake and oxygen exhaust system is arranged on the box body, and the steam intake and oxygen exhaust system The system can discharge steam to the top of the inner cavity; an oxygen intake and exhaust steam system, the oxygen intake and exhaust steam system is arranged on the box body, and the oxygen intake and exhaust steam system can exhaust the steam in the inner cavity.

According to the cooking appliance of the embodiment of the present application, the cooking appliance can quickly adjust the oxygen content in the inner cavity, thereby quickly completing the switching between different cooking modes, and keeping the oxygen content in the inner cavity at the optimum in different cooking modes within the range, thereby making the cooking utensils have a better cooking effect on food.

In addition, the cooking appliance according to the embodiment of the application may also have the following additional technical features:

According to some embodiments of the present application, the inner cavity includes: a cooking cavity and an air intake interlayer cavity located above the cooking cavity and communicated with the cooking cavity, and the steam intake and exhaust system is suitable for supplying the cooking cavity to the cooking cavity. Steam is discharged from the air interlayer cavity.

According to some embodiments of the present application, the steam intake and oxygen exhaust system includes: a steam generator, the steam generator is disposed outside the inner cavity and communicated with the intake interlayer cavity.

According to some embodiments of the present application, the steam intake and oxygen exhaust system further includes: a baffle, the baffle is arranged between the cooking cavity and the air intake interlayer cavity, and the baffle and the box body The air intake interlayer cavity is defined between the top walls of the partition, and a plurality of air passage holes are opened on the partition.

According to some embodiments of the present application, an air inlet is opened on the peripheral wall of the box, and steam is sprayed inward from the air inlet along the transverse direction of the air inlet interlayer cavity.

According to some embodiments of the present application, the steam is jetted from one side of the air intake interlayer chamber to the other side, and the diameter of the air holes near the upstream of the steam is larger than that near the downstream of the steam. part of the diameter of the air hole.

According to some embodiments of the present application, the opening density of the air holes near the upstream of the steam is greater than the opening density of the air holes near the downstream of the steam.

According to some embodiments of the present application, the baffle has a first area, a second area and a third area, the first area is located at one lateral end of the baffle and is close to the air inlet, the first The second area is located at the other lateral end of the partition, and at least a part of the second area is vertically opposite to the extension line of the air inlet, and the third area is located at the longitudinal two ends of the second area. On the other hand, the second area does not have the air holes, and the diameter and opening density of the air holes in the first area are larger than the diameter and opening density of the air holes in the third area.

According to some embodiments of the present application, the oxygen intake and steam exhaust system includes: a hot air mechanism, and a gas passage hole is opened on the box, and the hot air mechanism is suitable for dispelling the steam in the inner cavity from the gas passage hole. Exhausting and/or sucking outside air into the inner cavity from the gas through hole.

According to some embodiments of the present application, the oxygen intake and exhaust system further includes: a closing mechanism, the closing mechanism is adapted to open or block the gas through hole.

According to some embodiments of the present application, the hot air mechanism is arranged on the peripheral wall of the box body, the hot air mechanism includes: a heating element and a fan mechanism, and the heating element is arranged around the fan mechanism.

According to some embodiments of the present application, the fan mechanism includes: a fan blade and a first drive motor, the fan blade is arranged inside the box, the first drive motor is arranged outside the box, The first driving motor is drivingly connected to the fan blade.

According to some embodiments of the present application, the gas passage hole is opened on the peripheral wall of the box, and the gas passage hole is located within the outer circumferential covering surface of the fan blade.

According to some embodiments of the present application, the oxygen intake and exhaust system further includes: a hot air perforated plate, the hot air perforated plate is blocked between the inner cavity and the hot air mechanism, and the hot air perforated plate has a communication hole.

According to some embodiments of the present application, the closing mechanism is arranged outside the box, and the closing mechanism includes: a second drive motor, a rotating shaft and a sealing cover, the sealing cover is connected to the rotating shaft, The second drive motor is adapted to drive the rotating shaft to rotate.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a partial structural schematic diagram of a cooking appliance according to an embodiment of the present application;

Fig. 2 is a schematic structural view of a cooking appliance according to an embodiment of the present application;

Fig. 3 is a sectional view of a partial structure of a cooking appliance according to an embodiment of the present application;

Fig. 4 is a schematic structural view of a steam intake and exhaust system according to an embodiment of the present application;

Fig. 5 is a partial exploded view of the intake and oxygen exhaust system according to the embodiment of the present application;

Fig. 6 is a schematic structural diagram of a separator according to an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a cooking appliance according to an embodiment of the present application;

Fig. 8 is an exploded view of an oxygen intake and exhaust system according to an embodiment of the present application;

Fig. 9 is a partial structural schematic diagram of an oxygen intake and exhaust system according to an embodiment of the present application;

Fig. 10 is a schematic structural diagram of a closing mechanism according to an embodiment of the present application.

Reference signs:

Cooking appliance 100, box body 1, top wall 11, peripheral wall 12, inner cavity 2, cooking cavity 21, air intake interlayer cavity 22, steam intake and oxygen exhaust system 3, steam generator 31, partition 32, first area 321, The second area 323, the third area 322, the air hole 324, the air inlet 33, the oxygen intake and exhaust system 4, the hot air mechanism 41, the heating element 411, the fan mechanism 412, the fan blade 4121, the first driving motor 4122, the closing mechanism 42, the second driving motor 421, the rotating shaft 422, the sealing cover 423, the hot air hole plate 43, the communication hole 431, the leaking net 432, and the gas passing hole 44.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

A cooking appliance 100 according to an embodiment of the present application will be described below with reference to FIGS. 1-10 .

The cooking appliance 100 according to the embodiment of the present application may include: a box body 1 , a steam intake and exhaust system 3 and an oxygen intake and exhaust system 4 .

As shown in FIGS. 1-3 , the cooking appliance 100 in the embodiment of the present application is a cooking appliance 100 that can cook food with steam, specifically, it can be a steam box or a steam oven. When cooking food in a steam box or a steam oven, the oxygen content in the cooking cavity 21 of the cooking appliance 100 will affect the retention rate of nutrients during steam cooking of food and the amount of harmful substances produced during grill cooking. Therefore, in different cooking modes, it is necessary to adjust the oxygen content in the cooking cavity 21 to make the cooking effect better and the cooked food healthier.

Traditional cooking utensils quickly inject steam into the cooking cavity to achieve the purpose of exhausting the oxygen in the cooking cavity. Since the steam flows into the cooking cavity at a high speed, it will be strongly entrained with the air, resulting in a slow rate of oxygen discharge, and, in When there is high-temperature steam in the cooking cavity for wet baking, since most of the cooking cavity is filled with steam, in order to increase the oxygen content in the cooking cavity, the injection of steam is generally reduced, and the steam content is reduced through the slow dissipation of the steam itself. In order to achieve the purpose of increasing the oxygen content in the cooking cavity, it will lead to a slow rate of oxygen increase and oxygen discharge, so that the oxygen content in the cooking cavity cannot be adjusted quickly.

To this end, the embodiment of the present application designs a cooking appliance 100 with a steam intake and exhaust system 3 capable of rapid oxygen exhaust and an oxygen intake and exhaust system 4 that can rapidly increase oxygen, so that the steam intake and exhaust system 3 and the oxygen intake The combined action of the steam exhaust system 4 realizes the dynamic and rapid change of the oxygen content in the cooking cavity 21 . Thus, the cooking appliance 100 can quickly adjust the oxygen content in the cooking cavity 21, so that the cooking appliance 100 can quickly complete the switching of different cooking modes, and keep the oxygen content in the cooking cavity 21 at the minimum in different cooking modes. Appropriate range, so that the cooked food is healthier and more flavorful.

Among them, the box body 1 has an inner cavity 2, and the steam intake and oxygen exhaust system 3 is arranged on the box body 1 (refer to Fig. 1 and Fig. 4 ) to discharge steam into the inner cavity 2 of the box body 1, and the steam intake and oxygen exhaust system System 3 is capable of venting steam to the top of chamber 2 . As a result, the steam discharged into the inner cavity 2 by the steam intake and oxygen exhaust system 3 will form a stable steam layer on the top of the inner cavity 2, and the steam layer can slowly move from top to bottom to stably move the inner cavity 2 The air inside is discharged from the bottom of the inner chamber 2, thus reducing the degree of mixing of steam and air, thereby increasing the speed of air discharge and oxygen discharge.

And, since the density of steam is lower than that of air, the steam intake and exhaust system 3 discharges steam on the top of the inner cavity 2, so that the steam can fill the entire inner cavity 2 from top to bottom, and at the same time, the inner cavity 2, the original air in the cooking appliance 100 is discharged to further reduce the mixing degree of steam and air, and increase the speed of steam filling the inner cavity 2, so as to increase the oxygen exhaust speed of the cooking appliance 100, so that the cooking appliance 100 can quickly adjust the cooking cavity 21. Oxygen content purposes.

Further, the oxygen intake and exhaust steam system 4 is arranged on the box body 1 (refer to FIG. 7 and FIG. 8 ), and the oxygen intake and exhaust steam system 4 can exhaust the steam in the inner cavity 2, so that the steam content in the inner cavity 2 is rapidly reduced, At the same time, the outside air can quickly flow into the inner cavity 2, so that the oxygen content in the inner cavity 2 can be rapidly increased.

To sum up, the cooking utensil 100 realizes the dynamic and rapid change of the internal oxygen content under the joint action of the steam intake and exhaust system 3 and the oxygen intake and exhaust system 4, thereby achieving the rapid adjustment of the oxygen content in the cooking chamber 21. Purpose.

According to the cooking appliance 100 of the embodiment of the present application, the cooking appliance 100 can quickly adjust the oxygen content in the inner cavity 2, so as to quickly complete the switching of different cooking modes, and keep the oxygen content in the inner cavity 2 in different cooking modes. Within the most suitable range, the cooking utensils have a better cooking effect on food.

As shown in Figure 3, the inner cavity 2 includes: a cooking cavity 21 and an air intake interlayer cavity 22 that is positioned above the cooking cavity 21 and communicates with the cooking cavity 21, that is to say, the cooking cavity 21 communicates with the air intake interlayer cavity 22, So that the gas in the air intake interlayer cavity 22 can flow into the cooking cavity 21 . Wherein, the steam inlet and exhaust system 3 is suitable for discharging steam into the air intake interlayer chamber 22, because the air flow of the steam entering from the air inlet and exhaust system 3 has been diffused and decelerated in the air inlet interlayer chamber 22, so that The flow velocity of the steam entering the cooking chamber 21 from the air interlayer chamber 22 can be reduced, and the steam will form a stable steam layer in the air inlet interlayer chamber 22, and the steam layer can move slowly from top to bottom, The air in the cooking cavity 21 is stably discharged from the bottom of the cooking cavity 21, thus reducing the degree of mixing of steam and air, increasing the discharge speed of the air, thereby increasing the oxygen exhaust rate of the cooking appliance 100, so that the cooking appliance 100 can quickly adjust the oxygen content in the cooking chamber 21.

With reference to the embodiment shown in Figure 1, Figure 3 and Figure 4, the steam intake and oxygen exhaust system 3 includes: a steam generator 31, the steam generator 31 can convert liquid water into high-temperature steam through high-temperature heating, for steam heating food, The steam generator 31 is arranged on the outside of the inner chamber 2, so that the setting of the steam generator 31 does not occupy the cooking space for cooking in the cooking appliance 100, so that the cooking cavity 21 can be set larger, so that the cooking appliance can be further improved. 100 volume. Moreover, the steam generator 31 communicates with the air intake interlayer cavity 22 , so that the steam generator 31 can discharge steam into the air intake interlayer cavity 22 .

As shown in Fig. 2, Fig. 3 and Fig. 5, the steam intake and oxygen exhaust system 3 also includes: a partition 32, which is arranged between the cooking chamber 21 and the air intake interlayer chamber 22, so as to separate the cooking chamber 21 from the air intake The interlayer cavity 22 is divided. Wherein, the air intake interlayer cavity 22 is defined between the partition plate 32 and the top wall 11 of the box body 1, so that the air intake interlayer cavity 22 is located at the uppermost end of the entire box body 1, and a plurality of air passage holes are opened on the partition plate 32 324, to communicate with the air intake interlayer cavity 22 and the cooking cavity 21, so that the steam in the air intake interlayer cavity 22 can enter the cooking cavity 21 through a plurality of air holes 324, that is to say, in the air intake interlayer cavity 22. The steam layer needs to pass through the air hole 324 provided on the partition plate 32 to move downwards. Therefore, the flow velocity of the steam entering the cooking cavity 21 is further reduced, so as to further reduce the mixing degree of the steam and air, and improve the cooking time. The discharge speed of the air further improves the oxygen discharge speed of the cooking appliance 100 .

With reference to Fig. 1, Fig. 3 and Fig. 4, on the peripheral wall 12 (side wall) of box body 1, offer air inlet 33, steam is ejected from air inlet 33 along the horizontal direction of air inlet interlayer chamber 22, to avoid from The steam that the air inlet 33 enters into the air intake interlayer cavity 22 directly impacts the air hole 324, and directly flows into the cooking chamber 21 from the air air hole 324, and the steam caused cannot form a stable steam layer in the air intake interlayer cavity 22, thereby avoiding The phenomenon that the steam flow velocity cannot be reduced by the partition plate 32 is eliminated. Therefore, the steam is sprayed inward from the air inlet 33 along the lateral direction of the air inlet interlayer cavity 22, so that the steam flow flowing in from the air inlet 33 can first pass through the opposite side. The surrounding wall 12 (side wall) is blocked and turned back, and the speed slows down before flowing downwards to ensure that a stable steam layer can be formed in the air intake interlayer cavity 22, so as to further reduce the flow velocity of the steam flowing into the cooking cavity 21, Therefore, the mixing degree of the steam and the air is reduced, and the discharge speed of the air and the oxygen discharge speed of the cooking appliance 100 are improved.

Further, the steam flows from one side of the air intake interlayer cavity 22 to the other side, because the steam is sprayed inward from the air inlet 33 along the lateral direction of the air intake interlayer cavity 22, and is blocked by the peripheral wall 12 on the opposite side and Turning back, the speed slows down and then flows downward, and because the distance between the downstream side of the steam and the surrounding wall 12 on the opposite side is relatively close, the steam flow initially passes through the deceleration of the surrounding wall 12, and has not experienced further deceleration, so that the steam flow velocity at the downstream side of the steam is relatively fast. Faster, while the upstream of the steam is far away from the peripheral wall 12 on the opposite side, the steam flow is further decelerated during the backflow process, so that the steam flow velocity at the upstream of the steam is relatively slow, therefore, part of the air passage holes 324 close to the upstream of the steam The diameter is set larger than the diameter of the part of the air holes 324 near the downstream of the steam, and the opening density of the part of the air holes 324 near the upstream of the steam is set to be greater than the opening density of the part of the air holes 324 near the downstream of the steam, so that from The flow velocity of the steam flowing out of each air hole 324 is basically the same, so that the steam flow velocity 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 21, and then the steam layer can be uniform. Stable downward movement to further reduce the mixing degree of steam and air, increase the speed of steam filling the cooking cavity 21, so as to further increase the oxygen exhaust speed of the cooking appliance 100, so that the cooking appliance 100 can quickly adjust the oxygen in the cooking cavity 21 content.

As shown in Figure 5 and Figure 6, according to the diameter of some of the air holes 324 near the upstream of the steam is greater than the diameter of the part of the air holes 324 near the downstream of the steam, the opening density of the part of the air holes 324 near the upstream of the steam is greater than that near the downstream of the steam. Based on the principle of the opening density of some air holes 324 at the location, the partition 32 can be divided into three regions. Specifically, the partition 32 has a first region 321, a second region 323 and a third region 322, wherein the first The area 321 is located at one lateral end of the partition 32 and is close to the air inlet 33 , the second area 323 is located at the other lateral end of the partition 32 and at least a part of the second area 323 is vertically opposite to the extension line of the air inlet 33 , the third area 322 is located on the longitudinal sides of the second area 323, the second area 323 does not have air holes 324, and the diameter and opening density of the air holes 324 on the first area 321 are larger than the air holes on the third area 322 324 diameter and opening density. Moreover, the area of the first area 321 is greater than the sum of the area of the second area 323 and the third area 322, so that the steam can have sufficient space to settle.

Specifically, the steam is sprayed inward along the lateral direction of the air intake interlayer chamber 22 from the air inlet 33, and because the initial flow velocity is relatively large, it will be quickly sprayed to the second area 323 to form a higher pressure at the second area 323. Therefore, there is no air vent 324 in the second area 323, so as to avoid the excessive steam flow rate passing through the partition 32 here, which affects the speed of the cooking appliance 100 exhausting oxygen. Further, after the steam flow contacts the peripheral wall 12 and decelerates, it will flow around the third area 322 and then reach the first area 321. The steam flow rate in the first area 321 is relatively slow, so that most of the steam can flow in the first area 321. Settling uniformly, and the steam flow rate in the third area 322 is relatively fast, therefore, the diameter and opening density of the air holes 324 in the third area 322 are designed to be smaller than those in the first area 321 . Thereby, the flow velocity of the steam airflow passing through each air hole 324 on the dividing plate 32 can be made more uniform, so that the steam flow velocity at each position in the same plane can be uniform, so that the steam can form a stable steam at the top of the cooking chamber 21. The steam layer, so that the steam layer can move downward evenly and stably, so as to further reduce the degree of mixing of steam and air, increase the speed of steam filling the cooking cavity 21 , and further increase the oxygen exhaust speed of the cooking appliance 100 .

Wherein, the partition plate 32 can be integrally cast, that is, the vent hole 324 can be directly formed on the partition plate 32, or the vent hole 324 can be processed on the partition plate 32 by a stamping process.

Further, the baffle 32 may be multi-layer (not shown in the figure), and the multi-layer baffle 32 is spaced up and down, wherein, the air intake interlayer chamber 22 is defined between the bottom baffle 32 and the top wall 11 . Thus, the steam layer needs to pass through the multi-layer partition 32 to slow down during the downward movement, so as to further reduce the flow velocity of the steam flowing into the cooking chamber 21 , thereby further increasing the speed of steam filling the cooking chamber 21 .

Furthermore, the air inlet 33 is located between the uppermost baffle 32 and the top wall 11, so that the steam layer can pass through a plurality of baffles 32 in turn during the downward movement, so as to utilize the baffles 32 to the greatest extent. The flow speed of the steam is reduced so as to further increase the speed at which the steam fills the cooking cavity 21 .

Furthermore, the air passage holes 324 on two adjacent layers of partitions 32 are arranged in a staggered manner, in other words, the air passage holes 324 on two adjacent layers of partition boards 32 are not directly opposite to each other. Thus, the steam flow flowing from the air hole 324 of the upper dividing plate 32 to the lower dividing plate 32 will be blocked by the plate body of the lower dividing plate 32, and then pass through the air passing hole 324 of the lower dividing plate 32 to flow into the next step after further deceleration. Layers, to realize the gradual deceleration of the steam flow between the multi-layer partitions 32, thereby utilizing the barrier effect of the multi-layer partitions 32 to achieve a better effect of decelerating the steam flow velocity, so as to further increase the speed at which the steam fills the cooking cavity 21 , thereby increasing the oxygen exhaust rate of the cooking appliance 100 so that the cooking appliance 100 can quickly adjust the oxygen content in the cooking cavity 21 .

Referring to Fig. 8 and Fig. 9, the oxygen intake and exhaust steam system 4 includes: a hot air mechanism 41, and a gas through hole 44 is opened on the box body 1, so that the gas can flow into or out of the inner cavity 2 of the box body 1 through the gas through hole 44, Wherein, the hot air mechanism 41 is adapted to discharge the steam in the inner chamber 2 from the gas passage 44 and/or suck the outside air into the inner chamber 2 from the gas passage 44, so that the steam in the inner chamber 2 and the outside air The exchange provides power, so that oxygen enters the inner cavity 2 at a faster rate, thereby achieving the purpose of increasing the oxygenation rate of the cooking appliance 100 and enabling the cooking appliance 100 to quickly adjust the oxygen content in the cooking cavity 21 .

According to some embodiments of the present application, the hot air mechanism 41 can discharge the steam in the inner chamber 2 from the gas passage hole 44 to the outside. Specifically, the hot air mechanism 41 can form a negative pressure space at the gas passage hole 44, so that the steam flows out from the inner cavity 2 to the outside of the box body 1, so as to discharge the steam in the inner cavity 2, and make the steam content in the inner cavity 2 At the same time, a negative pressure space is formed in the inner chamber 2 due to the discharge of a large amount of steam, so that the outside air can quickly flow into the inner chamber 2, so that the oxygen content in the inner chamber 2 can be rapidly increased. high.

According to other embodiments of the present application, the hot air mechanism 41 can suck the outside air into the inner cavity 2 from the gas through hole 44, and the outside air can quickly flow into the inner cavity 2 through the gas through hole 44 under the push of the hot air mechanism 41, And squeeze the steam in the inner cavity 2, so that the steam is discharged from the inner cavity 2, so that the oxygen content in the inner cavity 2 can be rapidly increased.

7 and 8, the oxygen intake and exhaust system 4 also includes: a closing mechanism 42, the closing mechanism 42 is suitable for opening or blocking the gas through hole 44, so that the gas through hole 44 can be used when the cooking appliance 100 needs It is opened when the oxygen content is increased, and is closed when the cooking appliance 100 cooks food normally, so as to avoid the gas inside the cooking appliance 100 caused by steam flowing out of the inner cavity 2 from the gas through hole 44 when the cooking appliance 100 uses steam to cook food normally. Energy loss and waste due to massive loss of steam.

As shown in Figures 8 and 9, the hot air mechanism 41 is arranged on the peripheral wall 12 (rear wall) of the casing 1. The hot air mechanism 41 includes: a heating element 411 and a fan mechanism 412, and the heating element 411 is arranged around the fan mechanism 412.

Wherein, the fan mechanism 412 can suck air into the inner cavity 2, so that the outside air can be sucked into the inner cavity 2 through the gas passage hole 44, so as to achieve the purpose of rapid oxygenation. When the fan mechanism 412 sucks the outside air into the inner cavity 2 from the gas through hole 44, due to the low temperature of the outside air, after entering the inner cavity 2, the internal temperature of the cooking utensil 100 will be greatly reduced, and then the cooking effect will be deteriorated. The heating element 411 is arranged around the outside of the fan mechanism 412 to heat the air before it enters the inner cavity 2 to ensure a constant internal temperature of the cooking appliance 100 so as to improve the cooking effect of the cooking appliance 100 .

Moreover, the fan mechanism 412 can also blow air in the opposite direction of the inner cavity 2 of the box body 1 on the peripheral wall 12 of the box body 1, so that the steam can flow out from the inner cavity 2 to the outside of the box body 1, thereby discharging the steam in the inner cavity 2 , so that the steam content in the inner cavity 2 is rapidly reduced, and at the same time, the outside air can quickly flow into the inner cavity 2, so that the oxygen content in the inner cavity 2 can be rapidly increased.

7-9, the fan mechanism 412 includes: a fan blade 4121 and a first drive motor 4122, wherein the side wall 12 on which the hot air mechanism 41 is provided on the box body 1 protrudes outward, and protrudes outward The inside of the surrounding wall 12 defines the first installation space, and the fan blade 4121 is arranged inside the box body 1. Specifically, the fan blade 4121 is arranged in the first installation space inside the box body 1, and the first driving motor 4122 is arranged in the box body. body 1, so that the setting of the fan blade 4121 and the first driving motor 4122 does not occupy the space inside the box body 1 for cooking, so that the cooking cavity 21 can be set larger, so that the cooking appliance 100 can be further improved. volume. Further, the first driving motor 4122 is drivingly connected with the fan blade 4121, so that the first driving motor 4122 is used to drive the fan blade 4121 to run and rotate when the oxygen content in the inner cavity 2 needs to be increased.

Referring to FIG. 8 and FIG. 9 , the gas passage hole 44 is opened on the peripheral wall 12 of the box body 1 , and the gas passage hole 44 is located within the outer circumferential covering surface of the fan blade 4121 . In other words, the gas through hole 44 is set within the circle formed by the tip of the fan blade 4121. When the cooking utensil 100 needs to increase oxygen, the driving motor 4122 drives the fan blade 4121 to rotate, and a negative pressure will be formed in the circle formed by the tip of the fan blade 4121. The high-temperature steam with a slightly positive pressure in the cavity 2 is quickly discharged from the cavity 2. At this time, a negative pressure is formed in the cavity 2, and the outside air enters the cavity 2 through the gap on the cooking utensil 100, thereby improving the temperature of the cavity 2. Oxygen content purposes.

Referring to FIG. 8 , as shown in FIG. 1 and FIG. 2 , the oxygen intake and exhaust steam system 4 also includes: a hot air perforated plate 43 , which blocks between the inner cavity 2 and the hot air mechanism 41 , so that the hot air perforated plate 43 A first installation space is defined between it and the peripheral wall 12 . The hot-air perforated plate 43 can isolate the hot-air mechanism 41 from the food in the cooking chamber 21, so as to prevent the hot-air mechanism 41 from affecting the normal cooking of the food. The hole 431 is provided with a leaking net 432 to prevent food residues from entering the hot air mechanism 41 and causing damage to the hot air mechanism 41 and blockage of the gas passing hole 44 .

As shown in FIG. 7 , FIG. 8 and FIG. 10 , the closing mechanism 42 is arranged outside the box body 1 to prevent the closing mechanism 42 from affecting the operation of the fan blade 4121 and occupying space in the box body 1 . Wherein, the closing mechanism 42 includes: a second driving motor 421, a rotating shaft 422 and a sealing cover 423, the sealing cover 423 is connected on the rotating shaft 422, and the second driving motor 421 is suitable for driving the rotating shaft 422 to rotate, so as to pass through the second driving motor 421 drives the rotating shaft 422 to rotate to drive the sealing cover 423 to rotate to realize opening or blocking the gas passage hole 44 .

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 properties, 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 liquid to 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 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 specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

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 cooking utensil, comprising:

A box body, the box body has an inner cavity;

A steam intake and oxygen exhaust system, the steam intake and oxygen exhaust system is arranged on the box body, and the steam intake and oxygen exhaust system can discharge steam to the top of the inner cavity;

An oxygen intake and exhaust system, the oxygen intake and exhaust system is arranged on the box, and the oxygen intake and exhaust system can exhaust the steam in the inner cavity.
The cooking appliance according to claim 1, wherein the inner cavity comprises: a cooking cavity and an air intake interlayer cavity located above the cooking cavity and communicated with the cooking cavity, and the steam intake and oxygen exhaust system is suitable for Discharge steam into the air intake interlayer cavity.
The cooking appliance according to claim 2, wherein the steam intake and oxygen exhaust system comprises: a steam generator disposed outside the inner cavity and communicated with the intake interlayer cavity.
The cooking appliance according to claim 2, wherein the steam intake and oxygen exhaust system further comprises: a baffle, the baffle is arranged between the cooking cavity and the air intake interlayer cavity, and the baffle and The air intake interlayer cavity is defined between the top walls of the box body, and a plurality of air passage holes are opened on the partition plate.
The cooking appliance according to claim 4, wherein an air inlet is opened on the peripheral wall of the box body, and steam is sprayed inward from the air inlet along the transverse direction of the air inlet interlayer cavity.
The cooking appliance according to claim 5, wherein the steam is jetted from one side of the air inlet interlayer chamber to the other side, and the diameter of the air passage hole near the upstream of the steam is larger than that near the The diameter of the passage hole in the part downstream of the steam.
The cooking appliance according to claim 6, wherein the opening density of the air holes near the upstream of the steam is greater than the opening density of the air holes near the downstream of the steam.
The cooking appliance according to claim 7, wherein the partition plate has a first area, a second area and a third area, and the first area is located at one lateral end of the partition plate and is close to the air inlet. , the second area is located at the other lateral end of the partition and at least a part of the second area is vertically opposite to the extension line of the air inlet, and the third area is located at the second There are no air holes on the second area, and the diameter and opening density of the air holes on the first area are larger than the diameter of the air holes on the third area. and opening density.
The cooking appliance according to claim 1, wherein the oxygen intake and steam exhaust system comprises: a hot air mechanism, and a gas passage hole is opened on the box, and the hot air mechanism is suitable for transferring the steam in the inner cavity from the The gas through hole is discharged to the outside and/or the outside air is sucked into the inner cavity through the gas through hole.
The cooking appliance according to claim 9, wherein the oxygen intake and steam exhaust system further comprises: a closing mechanism, the closing mechanism is suitable for opening or closing the gas passage hole.
The cooking appliance according to claim 10, wherein the hot air mechanism is arranged on the peripheral wall of the box body, the hot air mechanism includes: a heating element and a fan mechanism, and the heating element is arranged around the fan mechanism.
The cooking appliance according to claim 11, wherein the fan mechanism comprises: a fan blade and a first driving motor, the fan blade is arranged inside the box, and the first driving motor is arranged in the box Outside the body, the first driving motor is drivingly connected to the fan blade.
The cooking appliance according to claim 12, wherein the gas through hole is opened on the peripheral wall of the box, and the gas through hole is located within the outer circumferential covering surface of the fan blade.
The cooking appliance according to claim 11, wherein the oxygen intake and exhaust system further comprises: a hot air hole plate, the hot air hole plate is blocked between the inner cavity and the hot air mechanism, and the hot air hole There are communicating holes on the board.
The cooking appliance according to claim 10, wherein the closing mechanism is arranged on the outside of the box, and the closing mechanism comprises: a second driving motor, a rotating shaft and a sealing cover, and the sealing cover is connected to the On the rotating shaft, the second driving motor is suitable for driving the rotating shaft to rotate.