Frying and baking machine

Abstract

The frying and baking machine comprises an upper baking tray assembly and a lower baking tray assembly, the upper baking tray assembly and the lower baking tray assembly are closed to form a cooking cavity, the upper baking tray assembly comprises an upper baking tray, an upper cover and an upper heating pipe arranged on the upper baking tray, the upper surface of the upper baking tray extends upwards to form convex ribs, and the convex ribs define a steam generation cavity; the steam generation cavity comprises a water storage cavity and a steam channel sharing the same wall with the water storage cavity, the upper end of the steam channel is communicated with the water storage cavity, and the lower end is communicated with the cooking cavity; the water storage cavity is located between the steam channel and the upper heating pipe, and the upper heating pipe heats the cooking cavity, the water storage cavity and the steam channel together. According to the frying and baking machine, the water storage cavity and the steam channel which are integrally formed with the upper baking tray are arranged, so that the heat transfer efficiency of the upper heating pipe to the water storage cavity and the steam channel is improved, meanwhile, the water storage cavity and the steam channel are arranged on the same wall, more heat of the water storage cavity can be transferred into the steam channel, and meanwhile the transmission path of water steam is reduced; and the total heat of the water vapor entering the cooking cavity is increased.

Description

Technical Field

[0001] The present application relates to the field of small household appliances, and in particular to a frying and grilling machine. Background Art

[0002] The grilling machine usually places food on a grilling pan and heats the grilling pan through a heating tube to achieve grilling and cooking of the food. However, due to the high firepower of the heating tube, the upper grilling pan assembly and the lower grilling pan assembly are covered to form a relatively sealed cooking chamber. Thus, when the grilling machine is covered to cook food, a dry and high temperature environment is formed in the cooking chamber. The food cooked in this environment will be particularly dry and hard, and difficult to chew. In addition, some food will become woody due to excessive loss of moisture, and the taste of the food will deteriorate.

[0003] In the prior art, in order to increase the water vapor inside the cooking cavity and thus change the dry environment inside the cooking cavity, water vapor is transported into the cooking cavity so that a high-humidity and high-temperature environment is formed inside the cooking cavity. For example, in the prior art, a steam cup is provided on the upper baking tray assembly, and the upper heating tube heats the steam cup to generate water vapor, and the water vapor in the steam cup is transported into the cooking cavity through the connecting tube, thereby increasing the humidity inside the cooking cavity. However, the method of transporting the water vapor in the steam cup into the cooking cavity through the connecting tube will extend the path of water vapor transportation. During the long transportation path, the heat of the water vapor will be dissipated, so that the total heat of the water vapor entering the cooking cavity is low. Even some water vapor will liquefy into small water droplets due to the cold environment of the connecting tube. Some small water droplets will cling to and gradually accumulate in the connecting tube. If the user does not clean the small water droplets in the connecting tube for a long time, bacteria will grow in the connecting tube, causing health problems; some small water droplets will directly enter the cooking cavity, but because the small water droplets are liquid, they will not float in the cooking cavity, but will drip onto the food, so that during the cooking process, the humidity of some food is significantly greater than that of other food, and this part of the food will become soft and sticky, resulting in a poor taste.

[0004] In order to increase the temperature of water vapor when entering the cooking cavity, the total heat of water vapor entering the cooking cavity is increased. For example, in the Chinese utility model patent CN201404105Y, a connecting pipe is provided on the upper baking tray assembly, one end of the connecting pipe is connected to the water tank, and the other end is connected to the cooking cavity. The upper heating pipe heats the water tank once to generate water vapor, and an electric heating pipe is provided at one end of the connecting pipe close to the cooking cavity. The electric heating pipe performs secondary heating on the water vapor to increase the temperature of the water vapor entering the cooking cavity. Although the water vapor heated by the secondary heating can enter the cooking cavity at a higher temperature, the secondary heating of the water vapor by adding the electric heating pipe not only increases the complexity of the grilling machine assembly, but also increases the cost of the grilling machine. If the electric heating pipe is too close to the connecting pipe, the temperature of the electric heating pipe will cause the connecting pipe to deform or even break, and the water vapor will overflow from the broken part to the inside of the upper baking tray assembly. The water vapor entering the inside of the upper baking tray assembly will affect the normal use of the internal components. For example, the upper heating pipe in the upper baking tray assembly is prone to short circuit and other safety accidents after encountering water vapor. Summary of the invention

[0005] In order to solve the above technical problems, the present application discloses a grilling machine, which reduces the water vapor movement path and increases the temperature of the water vapor when entering the cooking cavity by arranging a water storage cavity and a steam channel with a common wall on the upper grill assembly.

[0006] The present application discloses a grilling machine, comprising an upper grilling plate assembly and a lower grilling plate assembly, wherein the upper grilling plate assembly and the lower grilling plate assembly are covered to form a cooking cavity, wherein the upper grilling plate assembly comprises an upper grilling plate and an upper cover, and an upper heating tube arranged on the upper grilling plate, wherein a convex rib extends upwardly from an upper surface of the upper grilling plate, wherein the convex rib surrounds a steam generating cavity, wherein the steam generating cavity comprises a water storage cavity and a steam channel having a common wall with the water storage cavity, wherein an upper end of the steam channel is communicated with the water storage cavity, and a lower end of the steam channel is communicated with the cooking cavity; the water storage cavity is located between the steam channel and the upper heating tube, and the upper heating tube heats the cooking cavity, the water storage cavity and the steam channel together.

[0007] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0008] Optionally, a notch is provided on the common wall, and the notch forms an air inlet at the upper end of the steam channel.

[0009] Optionally, the convex rib includes a first side wall, the first side wall and the common wall form the steam channel, and the first side wall and the common wall are inclined from top to bottom and gradually approach each other.

[0010] Optionally, the convex rib includes a second side wall, and the second side wall and the common wall enclose the water storage cavity. The grill is provided with a steam cover, and the surrounding wall of the steam cover extends into the water storage cavity and is staggered with the second side wall.

[0011] Optionally, the water storage chamber is configured to be circular.

[0012] Optionally, the upper baking tray assembly and the lower baking tray assembly are connected via a hinge device, the hinge device is provided with an air outlet passage communicating with the outside, and the steam passage is provided on a side away from the hinge device.

[0013] Optionally, the steam channel is arranged opposite to the hinge device.

[0014] Optionally, the second side wall is provided with ribs extending toward the first side wall.

[0015] Optionally, the height of the first side wall is lower than the height of the second side wall.

[0016] Optionally, the first side wall includes two oblique edges in contact with the second side wall, and the two oblique edges extend in opposite directions away from the second side wall.

[0017] A grilling machine of the present application improves the heat transfer efficiency of the upper heating tube to the water storage chamber and the steam channel by providing a water storage chamber and a steam channel integrally formed with the upper grill plate. At the same time, the water storage chamber and the steam channel are provided with a common wall, so that more heat from the water storage chamber can be transferred to the steam channel, while the transmission path of the water vapor is reduced, thereby increasing the total heat of the water vapor entering the cooking chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a grilling machine in one embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the structure of the grilling machine explosion in one embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of the upper cover of the grilling machine in one embodiment of the present application;

[0021] Figure 4 In one embodiment of this application Figure 3 Schematic diagram of the enlarged structure of part A.

[0022] The reference numerals in the figures are described as follows:

[0023] 100. Grilling machine;

[0024] 200, upper baking tray assembly; 201, upper baking tray; 202, upper cover; 203, upper heating tube; 204, convex rib; 205, steam generating chamber; 206, water storage chamber; 207, steam channel; 208, common wall; 209, notch; 210, air inlet; 211, first side wall; 212, second side wall; 213, steam cover; 214, surrounding wall; 215, rib; 216, bevel edge;

[0025] 300, lower baking tray assembly; 301, hinge device; 302, air outlet channel;

[0026] 400. Cooking chamber. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] The grilling machine 100 includes an upper grill assembly 200 and a lower grill assembly 300. Before cooking food, the user opens the upper grill assembly 200 and the lower grill assembly 300, places the food on the lower grill of the lower grill assembly 300 (it can also be placed on the upper grill assembly 200, which is not illustrated here), and then covers the upper grill assembly 200 and the lower grill assembly 300. The upper grill 201 and the lower grill cooperate to form a cooking cavity 400. The upper heating tube 203 and the lower heating tube are used to heat the upper grill 201 and the lower grill. The heat of the upper / lower heating tubes is transferred to the upper / lower grills, and the food is heated through the upper / lower grills.

[0031] In the process of heating the steam cup in the upper baking tray assembly 200 by the upper heating tube 203, if the upper heating tube 203 cannot heat the steam cup quickly during the process of heating the steam cup, so that the steam cup can generate a large amount of water vapor in a short time, it takes a long time for the water vapor to fill the entire cooking cavity 400. In this way, the food will be in a low humidity and high temperature environment during the cooking process. Although the low humidity and high temperature environment can improve the dry, hard and woody taste of the food, because the food does not have enough time to be completely in the high humidity and high temperature environment, when the thickness of the food is relatively thick, the water vapor will only enter 1 / 2 to 2 / 3 of the food. Even for some foods with rough surfaces, it is difficult for the water vapor to enter the food through the surface, so that the water vapor can only wet the surface of the food, and cannot completely immerse the entire food, resulting in a deviation in taste.

[0032] Alternatively, after the upper heating tube 203 heats the steam cup, the heat of the water vapor entering the cooking cavity 400 is relatively low. Although the water vapor can quickly fill the entire cooking cavity 400, the low heat of the water vapor cannot effectively make the cooking cavity 400 reach a high temperature. When the heat of the water vapor in the cooking cavity 400 is relatively low, the water vapor filling the cooking cavity 400 cannot keep the food in a high temperature environment, so that the food is cooked in a low temperature and high humidity environment, and the low heat water vapor cannot quickly and effectively exchange heat with the food.

[0033] Therefore, being able to quickly make the steam cup generate enough water vapor and to make the water vapor entering the cooking cavity 400 reach enough heat is the key to the steam grill 100 being able to make fluffy and tender food.

[0034] In the prior art, in order to provide steam to the cooking cavity 400, a steam cup is provided on the upper grill assembly 200. In order to facilitate adding liquid to the steam cup, the steam cup is detachably connected to the upper grill assembly 200, that is, the steam cup can be removed from the upper grill assembly 200 to add liquid to the steam cup. A certain gap is generated between the detachable steam cup and the upper grill assembly 200, so that when the heat generated by the upper heating tube 203 heats the liquid in the steam cup, due to the gap between the steam cup and the upper grill assembly 200, part of the heat cannot be directly transferred to the steam cup, but overflows to the outside of the grilling machine 100. In addition, the disassembly device provided between the steam cup and the upper grill assembly 200 will also prevent heat from being transferred to the steam cup, affecting the heat transfer efficiency.

[0035] Alternatively, in the prior art, in order to increase the heat of the water vapor entering the cooking cavity 400, as described in the previous background technology, an electric heating pipe is added to heat the water vapor for a second time, which not only increases the complexity of assembling the grilling machine 100, but also increases the cost of the grilling machine 100. If the electric heating pipe is too close to the connecting pipe, the temperature of the electric heating pipe will cause the connecting pipe to deform or even break, and the water vapor will overflow from the broken part into the upper grilling plate assembly 200. The water vapor entering the upper grilling plate assembly 200 will affect the normal use of the internal components. For example, the upper heating pipe 203 in the upper grilling plate assembly 200 is prone to short circuit and other safety accidents after encountering water vapor.

[0036] refer to Figure 1 to Figure 4 As shown, in order to generate sufficient water vapor and increase the heat when the water vapor enters the cooking cavity 400, a grilling machine 100 of the present application includes an upper grilling plate assembly 200 and a lower grilling plate assembly 300, the upper grilling plate assembly 200 and the lower grilling plate assembly 300 are covered to form the cooking cavity 400, the upper grilling plate assembly 200 includes an upper grilling plate 201 and an upper cover 202, and an upper heating tube 203 arranged on the upper grilling plate 201, and the upper surface of the upper grilling plate 201 extends upward. A convex rib 204 is extended, and the convex rib 204 surrounds a steam generating chamber 205. The steam generating chamber 205 includes a water storage chamber 206 and a steam channel 207 which shares a wall 208 with the water storage chamber 206. The upper end of the steam channel 207 is connected to the water storage chamber 206, and the lower end is connected to the cooking chamber 400. The water storage chamber 206 is located between the steam channel 207 and the upper heating tube 203, and the upper heating tube 203 heats the cooking chamber 400, the water storage chamber 206 and the steam channel 207 together.

[0037] In this embodiment, a heating space is formed between the upper cover 202 and the upper baking tray 201. In order to reduce the heat loss when the upper heating tube 203 transfers heat to the steam generating chamber 205, the steam generating chamber 205 is arranged inside the heating space, and the steam generating chamber 205 and the upper baking tray 201 are integrally arranged, that is, the upper surface of the upper baking tray 201 extends upward to form a convex rib 204, and the convex rib 204 surrounds the steam generating chamber 205. The upper heating tube 203 is also arranged on the upper surface of the upper baking tray 201. When the upper heating tube 203 starts to heat, because the steam generating chamber 205 is formed by the convex ribs 204 on the upper baking tray 201, the heat of the upper heating tube 203 can be directly transferred to the liquid in the steam generating chamber 205 through the convex ribs 204. Therefore, the heat of the upper heating tube 203 can be transferred to the steam generating chamber 205 more quickly and directly, and the heat of the upper heating tube 203 will not overflow from the gap between the steam cup and the upper baking tray assembly 200 to the outside of the grill 100, or the heat of the upper heating tube 203 needs to pass through the disassembly device before being transferred to the convex ribs 204 to heat the liquid in the steam generating chamber 205, thereby improving the heating efficiency of the upper heating tube 203 and reducing the time of water vapor production.

[0038] In order to reduce the path of water vapor movement, a common wall 208 is provided between the water storage chamber 206 and the steam channel 207 of the steam generating chamber 205. When the upper heating tube 203 heats the water storage chamber 206, the liquid in the water storage chamber 206 is heated to generate water vapor. When there is a lot of water vapor in the water storage chamber 206, the water vapor will overflow from the water storage chamber 206 and enter the steam channel 207. Because the steam channel 207 and the water storage chamber 206 are provided with a common wall 208, and the upper end of the steam channel 207 is connected to the water storage chamber 206, in the process of water vapor entering from the water storage chamber 206 to the steam channel 207, the radial movement path of water vapor in the steam generating chamber 205 can be shortened or even eliminated, thereby reducing the heat loss of water vapor in the radial path process. At the same time, because the steam channel 207 and the water storage chamber 206 share a common wall 208, the heat of the upper heating tube 203 is first transferred to the water storage chamber 206. Because the common wall 208 is a part of the water storage chamber 206, the heat is quickly transferred to the common wall 208, and the temperature difference between the common wall 208 and the water storage chamber 206 is small. When the liquid enters the steam channel 207, because the common wall 208 is in a high temperature state, the common wall 208 will reheat the water vapor entering the steam channel 207, thereby preventing the water vapor from having a large heat loss due to the long axial path when passing through the upper baking tray assembly 200. At the same time, because the common wall 208 is part of the steam channel 207, the heat of the common wall 208 will also be transferred to other parts of the steam channel 207, so that the temperature difference between the components in the steam generation chamber 205 can be reduced. On the one hand, the generated water vapor can be continuously and uninterruptedly heated to increase the heat of the water vapor entering the cooking chamber 400; on the other hand, the water vapor is prevented from encountering a colder component and liquefying to form small water droplets, thereby reducing the output of water vapor. Because the radial movement path of the water vapor in the steam generation chamber 205 is reduced, and the axially moving water vapor is reheated by the common wall 208, the heat of the water vapor entering the cooking chamber 400 can be effectively increased.

[0039] In order to improve the heating efficiency of the upper heating tube 203 on the water storage chamber 206, the water storage chamber 206 is located between the steam channel 207 and the upper heating tube 203. If the steam channel 207 is placed between the water storage chamber 206 and the upper heating tube 203, the upper heating tube 203 will first heat the steam channel 207, and then the steam channel 207 will transfer the heat to the water storage chamber 206 to heat the liquid in the water storage chamber 206. In the process of the steam channel 207 transferring the heat to the water storage chamber 206, part of the heat will inevitably be lost, and the temperature of the water storage chamber 206 will be lower than the temperature of the steam channel 207, which prolongs the time for the water storage chamber 206 to heat the liquid. In addition, if the upper heating tube 203 heats the steam channel 207 for a long time, because there is no liquid in the steam channel 207 to absorb the heat, the long-term high-temperature heating will cause the steam channel 207 to deform, etc., hindering the movement of water vapor in the steam channel 207, and affecting the speed at which the water vapor enters the cooking chamber 400.

[0040] In the prior art, because the water storage chamber 206 and the upper grill assembly 200 are detachably arranged, during the disassembly process, the user needs to apply a large force to the water storage chamber 206 to disassemble the water storage chamber 206 from the upper grill assembly 200. In order to prevent the water storage chamber 206 from being deformed during the disassembly process, the water storage chamber 206 is usually arranged to have a certain hardness, and the outer wall of the water storage chamber 206 is usually thicker, so that it is difficult for external heat to be transferred to the inside of the water storage chamber 206 through the outer wall of the water storage chamber 206. It is difficult for the water storage chamber 206 to be heated by the upper heating tube 203 alone to generate water vapor. In order to heat the liquid in the water storage chamber 206 to generate water vapor more quickly, some grilling machines 100 use one heating tube to heat the cooking chamber 400 and another heating tube to heat the water storage chamber 206. By setting the water storage chamber 206 as a component enclosed by the ribs 204 extending from the upper grill plate 201, the water storage chamber 206 only needs to be strong enough to store liquid and withstand the high temperature brought by the upper heating tube 203, and not melt when encountering high temperature. At this time, heat can be easily transferred to the inside of the water storage chamber 206 through the outer wall of the water storage chamber 206, thereby heating the liquid inside the water storage chamber 206. Similarly, the heat of the upper heating tube 203 can pass through the water storage chamber 206 to directly heat the steam channel 207, and can also directly heat the cooking chamber 400, thereby reducing the complexity of assembling the grilling machine 100 and reducing the cost of the grilling machine 100.

[0041] refer to Figure 3 and Figure 4As shown, after the water storage chamber 206 generates water vapor, it needs to be able to quickly enter the steam channel 207. In order to reduce the time that the water vapor stays in the water storage chamber 206, a notch 209 is provided on the common wall 208, and the notch 209 forms an air inlet 210 at the upper end of the steam channel 207. If the height of the common wall 208 is higher than the height of the other walls of the water storage chamber 206, the water vapor generated inside the water storage chamber 206 needs to move along a longer path along the axial direction of the grilling machine 100 to enter the steam channel 207 from the air inlet 210, and the water vapor entering the steam channel 207 needs to move along a longer path along the axial direction of the grilling machine 100 again to enter the cooking chamber 400 from the steam channel 207. This not only prolongs the total path of the water vapor moving along the axial direction in the grilling machine 100, but also when the height of the common wall 208 is higher, the water vapor generated inside the water storage chamber 206 needs to move along a longer path along the axial direction of the grilling machine 100 to enter the cooking chamber 400 from the steam channel 207. , which will affect the arrangement of the steam generating chamber 205 in the heating space. In order to meet the height of the common wall 208 of the heating space, the distance between the upper cover 202 and the upper baking tray 201 will also be increased, which will not only increase the volume of the grilling machine 100, but also make it inconvenient for users to store and occupy transportation space. More importantly, when the upper heating tube 203 is heating in the heating space, due to the large heating space, a large amount of heat will be dissipated into the air and cannot be effectively converted into heating for the steam generating chamber 205 and the cooking chamber 400, thereby reducing the heating efficiency. When the notch 209 is opened on the common wall 208, the height of the common wall 208 is lower than or equal to the height of other walls of the water storage chamber 206. In this way, when the water storage chamber 206 generates water vapor, the water vapor can move axially a short distance before entering the steam channel 207. This not only allows the water vapor to enter the steam channel 207 in a shorter time, but also reduces the height of the common wall 208, thereby reducing the distance between the upper cover 202 and the upper baking tray 201, and enables more heat from the upper heating tube 203 to be transferred to the cooking chamber 400 and the steam generating chamber 205.

[0042] When the water vapor enters the steam channel 207, in order to enable the water vapor to move from top to bottom along the axial direction of the grilling machine 100 and enter the cooking cavity 400, the rib 204 includes a first side wall 211, and the first side wall 211 and the common wall 208 enclose the steam channel 207, and the first side wall 211 and the common wall 208 are arranged to be inclined from top to bottom and gradually approach each other. When the water vapor enters the steam channel 207, due to the principle that hot air rises, the heat of the water vapor is greater than the heat of the original air in the steam channel 207, so the water vapor first gathers upward, and when more water vapor gathers in the upper part of the steam channel 207, the water vapor will gather downward, and will not enter the cooking cavity 400 from the lower end of the steam channel 207 until the water vapor fills the entire steam channel 207. This will not only increase the time for the water vapor to enter the cooking cavity 400, but also easily cause part of the water vapor to remain in the steam channel 207 and cannot enter the cooking cavity 400. The water vapor that has been in the steam channel 207 for a long time is likely to form small water droplets attached to the inner wall of the steam channel 207 when it encounters cold after the upper heating tube 203 stops heating, thereby easily breeding bacteria. Some small water droplets will also drip from the lower end of the steam channel 207 onto the food, making the food soft and mushy. Therefore, in order to better guide the movement of water vapor in the steam channel 207, the first side wall 211 and the common wall 208 are inclined from top to bottom and gradually approach each other. In this embodiment, one of the first side wall 211 and the common wall 208 can be vertically arranged, and the other can be inclined and gradually approach one of them; or, both the first side wall 211 and the common wall 208 can be inclined and gradually approach the other. The inclined first side wall 211 and / or the common wall 208 can reduce the volume of the steam channel 207, so that the water vapor can quickly spread throughout the entire steam channel 207; at the same time, the gradually approaching first side wall 211 and / or the common wall 208 can guide the water vapor, so that the water vapor can move toward the lower end of the steam channel 207 along the inclined first side wall 211 and / or the common wall 208. In this way, even if the steam channel 207 is not filled with water vapor, some water vapor will enter the cooking cavity 400 along the inclined first side wall 211 and / or the common wall 208, thereby reducing the time it takes for the water vapor to enter the cooking cavity 400.

[0043] In order to allow the water vapor generated in the water storage chamber 206 to quickly enter the steam channel 207 from the air inlet 210, the convex rib 204 includes a second side wall 212, and the second side wall 212 and the common wall 208 surround the water storage chamber 206. The grilling machine 100 is provided with a steam cover 213, and the surrounding wall 214 of the steam cover 213 extends into the water storage chamber 206 and is staggered with the second side wall 212. The second side wall 212 of the convex rib 204 cooperates with the common wall 208 to form the water storage chamber 206, and the upper end of the water storage chamber 206 is open, and the opening forms a water injection port for adding water. In order to facilitate the injection of liquid into the water storage chamber 206 through the water injection port, the diameter of the water injection port is usually much larger than the diameter of the air inlet 210. Therefore, when the upper heating tube 203 heats the liquid in the water storage chamber 206 to generate water vapor, most of the water vapor will enter the external environment through the water injection port, and only a very small part of the water vapor will enter the steam channel 207 through the air inlet 210. In order to allow most of the water vapor to enter the steam channel 207, a steam cover 213 is provided on the grill 100. The steam cover 213 covers the water injection port, so that when the liquid in the water storage chamber 206 is heated, the water injection port can be sealed, so that the water vapor can only overflow from the water storage chamber 206 through the air inlet 210, thereby reducing the loss of water vapor. When the water storage chamber 206 is heated by the upper heating tube 203 to generate water vapor, the water vapor will gradually rise and fill the upper end of the water storage chamber 206, and then enter the steam channel 207 through the air inlet 210. In order to guide the water vapor to directly enter the steam channel 207 through the air inlet 210, the surrounding wall 214 of the steam cover 213 extends into the water storage chamber 206 and is staggered with the second side wall 212. When the water vapor rises and runs to the end of the steam cover 213, the water vapor will enter the gap staggered between the steam cover 213 and the second side wall 212, and directly enter the steam channel 207 from the gap, thereby reducing the time for the water vapor to enter the steam channel 207 from the water storage chamber 206.

[0044] Because the water storage chamber 206 and the steam cover 213 are connected by a rotational buckle, the water storage chamber 206 is set to be circular in order to achieve foolproof rotational buckle. If the water storage chamber 206 is set to be square or rectangular, when the rotational buckle front end of the steam cover 213 and the rotational buckle rear end of the water storage chamber 206 are on the same axis at the beginning of rotation (the steam cover 213 and the water storage chamber 206 should be on the same axis when the rotational buckle ends), the steam cover 213 cannot be rotated into the water storage chamber 206, because the water storage chamber 206 is a square structure. In order to achieve symmetry, the steam cover 213 needs to be rotated and adjusted by at least 45 degrees before the steam cover 213 can be screwed into the water storage chamber 206. If the water storage chamber 206 is set to a circular structure, when the above situation occurs, it is only necessary to rotate the steam cover 213 about 20 to 30 degrees so that the rotational locking structure of the steam cover 213 and the water storage chamber 206 is misaligned with each other to complete the adjustment between the two, without considering the symmetry of the square structure.

[0045] In the prior art, the steam channel 207 is usually placed near the center of the upper baking tray 201, and the water vapor is diffused in the entire cooking cavity 400 at the center. In this embodiment, the upper baking tray assembly 200 and the lower baking tray assembly 300 are connected by a hinge device 301, and the hinge device 301 is provided with an air outlet channel 302 connected to the outside, and the steam channel 207 is arranged on a side away from the hinge device 301. Because the hinge device 301 is provided with an air outlet channel 302 connected to the outside, if the steam channel 207 is still arranged near the center of the upper baking tray 201, the water vapor will enter the cooking cavity 400 from the center of the upper baking tray 201. The water vapor entering the cooking cavity 400 will flow to the place with low pressure, that is, mainly to the hinge device, and then enter the external environment from the air outlet channel 302. In this way, only a small amount of water vapor will enter the part of the cooking cavity 400 far away from the hinge device 301, so that the water vapor cannot fill the entire cooking cavity 400, and the food cannot be completely wrapped by the water vapor. The running path of the water vapor in the cooking cavity 400 is mainly from the center of the upper baking tray 201 to the hinge device 301, and only passes through half the length of the cooking cavity 400. If the steam channel 207 is set on the side away from the hinge device 301, the running path of the water vapor in the cooking cavity 400 will be greater than the running path from the center of the upper baking tray 201 to the hinge device 301, so that the main running path of the water vapor can basically cover most of the cooking cavity 400, so that the water vapor can fill the entire cooking cavity 400 relatively quickly and evenly. As a preferred embodiment, the steam channel 207 is arranged opposite to the hinge device 301. The hinge device 301 is arranged on the side where the upper baking tray assembly 200 is connected to the lower baking tray assembly 300, and the steam channel 207 is arranged on the side opposite to the hinge device 301 and at the farthest position, so that when water vapor enters the cooking cavity 400 through the steam channel 207, it will actively move from the position of the steam channel 207 to the position of the hinge device 301, thereby filling the entire cooking cavity 400 and completing the filling of the entire cooking cavity 400 with water vapor.

[0046] refer to Figure 4 As shown, because the water storage chamber 206 and the steam channel 207 share a wall 208, water vapor easily overflows from the side wall of the steam generating chamber 205 to the outside of the steam generating chamber 205 at the place of the shared wall 208. In order to prevent water vapor from overflowing from the shared wall 208 to the outside of the steam generating chamber 205, a rib 215 extending toward the first side wall 211 is provided on the second side wall 212. At the shared wall 208, the fitting effect between the steam cover 213 and the shared wall 208 is poor, so part of the water vapor overflows at the shared wall 208 to the outside of the steam generating chamber 205. The provision of the rib 215 can enhance the sealing effect between the shared wall 208 and the steam cover 213, thereby reducing the probability of water vapor overflowing from the shared wall 208.

[0047] refer to Figure 4 As shown, in order to reduce the path length of water vapor moving in the steam channel 207, the height of the first side wall 211 is lower than the height of the second side wall 212. Water vapor stays in the steam channel 207 for a long time. In order to increase the sealing performance of the steam channel 207, the height of the first side wall 211 of the steam channel 207 is set lower than the height of the second side wall 212 of the water storage chamber 206, so that the sealing member on the steam cover 213 can extend a longer wall to cooperate with the first side wall 211, thereby improving the sealing effect between the sealing member and the first side wall 211.

[0048] In order to make the water vapor entering the steam channel 207 evenly distributed in the steam channel 207 and prevent different streams of water vapor from colliding due to the disorder of the water vapor after entering the steam channel 207, the first side wall 211 includes two oblique edges 216 in contact with the second side wall 212, and the two oblique edges 216 extend in opposite directions away from the second side wall 212. The oblique edges 216 extending in opposite directions guide the water vapor to move in directions away from each other, thereby filling the entire steam channel 207 or moving toward the lower end of the steam channel 207, preventing the water vapor from colliding with each other and affecting the moving speed of the water vapor.

[0049] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0050] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A grilling machine, comprising an upper grilling pan assembly and a lower grilling pan assembly, wherein the upper grilling pan assembly and the lower grilling pan assembly are covered to form a cooking cavity, characterized in that: The upper baking tray assembly includes an upper baking tray and an upper cover, and an upper heating tube arranged on the upper baking tray, the upper surface of the upper baking tray has convex ribs extending upward, the convex ribs surround a steam generating chamber, the steam generating chamber includes a water storage chamber and a steam channel sharing a wall with the water storage chamber, the upper end of the steam channel is connected to the water storage chamber, and the lower end is connected to the cooking chamber; the water storage chamber is located between the steam channel and the upper heating tube, and the upper heating tube heats the cooking chamber, the water storage chamber and the steam channel together.

2. A grilling machine according to claim 1, characterized in that: A notch is provided on the common wall, and the notch forms an air inlet at the upper end of the steam channel.

3. A grilling machine according to claim 1, characterized in that: The convex rib comprises a first side wall, the first side wall and the common wall enclose the steam channel, and the first side wall and the common wall are inclined and gradually approach each other from top to bottom.

4. A grilling machine according to claim 3, characterized in that: The convex rib includes a second side wall, and the second side wall and the common wall enclose the water storage cavity. The grill is provided with a steam cover, and the surrounding wall of the steam cover extends into the water storage cavity and is staggered with the second side wall.

5. The grilling machine according to claim 1, characterized in that: The water storage cavity is arranged in a circular shape.

6. The grilling machine according to claim 1, characterized in that: The upper baking tray assembly and the lower baking tray assembly are connected via a hinge device, the hinge device is provided with an air outlet passage communicating with the outside, and the steam passage is provided on a side away from the hinge device.

7. A grilling machine according to claim 6, characterized in that: The steam channel is arranged opposite to the hinge device.

8. The grilling machine according to claim 4, characterized in that: The second side wall is provided with ribs extending toward the first side wall.

9. The grilling machine according to claim 4, characterized in that: The height of the first side wall is lower than the height of the second side wall.

10. The grilling machine according to claim 4, characterized in that: The first side wall includes two oblique edges in contact with the second side wall, and the two oblique edges extend in opposite directions away from the second side wall.

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