Steam generating device and cooking utensil

Abstract

The utility model provides a steam generating device and a cooking utensil, and the steam generating device comprises a heating disc which comprises a first heating area and a second heating area; the cover body is installed on one side of the heating disc, a first heating cavity is defined by the cover body and the first heating area, a second heating cavity is defined by the cover body and the second heating area, the first heating cavity is communicated with the second heating cavity, and steam generated in the first heating cavity can enter the second heating cavity to be secondarily heated; the water inlet channel is communicated with the first heating cavity; and the steam outlet channel is communicated with the second heating cavity. By means of the structure, secondary heating can be conducted on steam, and therefore moisture in the finally output steam can be reduced. In this way, on one hand, the temperature when the food materials are heated through steam can be guaranteed, the temperature of the cooking cavity and the temperature of the food materials can be rapidly increased, and on the other hand, residual water in the cooking cavity and the food material container after the food materials are cooked can be reduced.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a steam generating device and a cooking appliance. Background Art

[0002] In the related scheme, the steamer uses a steam generator to generate superheated steam with a temperature higher than 100°C. However, since the steam generator has a closed pipeline inside, it cannot be cleaned. After a period of use, scale will be generated in the pipeline, which will lead to reduced heating efficiency and even clogging of the pipe by scale.

[0003] Therefore, how to provide a steam generating device that is easy to clean has become a problem that needs to be solved urgently. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, a first aspect of the present application is to provide a steam generating device.

[0006] A second aspect of the present application is to provide a cooking appliance.

[0007] The technical solution of the first aspect of the present application provides a steam generating device, comprising: a heating plate, comprising a first heating zone and a second heating zone; a cover body, installed on one side of the heating plate, the cover body and the first heating zone form a first heating chamber, and the cover body and the first heating zone form a second heating chamber with the second heating zone, the first heating chamber and the second heating chamber are connected to each other, and the steam generated in the first heating chamber can enter the second heating chamber for secondary heating; a water inlet channel, connected to the first heating chamber; and a steam outlet channel, connected to the second heating chamber.

[0008] According to the steam generating device provided in the present application, it includes a heating plate, a cover, a water inlet channel and a steam outlet channel. The heating plate includes a first heating area and a second heating area, and the cover is installed on the heating plate, and forms a first heating chamber and a second heating chamber with the first heating area and the second heating area, so that the water in the first heating chamber can be heated for the first time by the heating plate to generate steam, and since the first heating chamber and the second heating chamber are interconnected, the steam generated in the first heating chamber can enter the second heating chamber for secondary heating, so that the temperature of the steam can be increased, thereby improving the cooking effect of the food. Since the present application heats the water through the first heating chamber and performs secondary heating through the second heating chamber, a water inlet channel connected to the first heating chamber is also provided to supply water to the first heating chamber. Similarly, after the steam is secondary heated in the second heating chamber, it can be discharged through the steam outlet channel connected to the second heating chamber. This structure can heat water twice through the heating plate, so that the temperature of the generated steam is relatively high, that is, steam with a temperature higher than 100°C can be generated through the two heatings of the heating plate. At the same time, due to this method, the steam can be heated twice, so that the moisture in the steam finally output can be reduced. This can ensure the temperature of the food when the steam is heated, so that the temperature of the cooking cavity and the food can be quickly increased, and can also reduce the residual water in the cooking cavity and the food container after the food is cooked.

[0009] In addition, the steam generating device of the present application has two heating chambers surrounded by different areas of the cover body and the heating plate, so there is no complicated pipeline structure inside the steam generating device, so it is easier to clean. At the same time, this arrangement has a relatively simple structure, so it is easier to process and disassemble, so it is easier to clean the inside of the steam generating device.

[0010] In some technical solutions, optionally, the second heating chamber includes: a steam channel, one end of the steam channel is connected to the first heating chamber, the other end of the steam channel is connected to the steam outlet channel, and at least part of the inner wall of the steam channel is surrounded by the second heating zone.

[0011] In this technical solution, the second heating chamber includes a steam channel, and the steam discharged from the first heating chamber can enter the steam channel. At least part of the inner wall of the steam channel is surrounded by the second heating zone. Therefore, when the steam flows through the steam channel, it can be heated by the second heating zone of the heating plate, thereby achieving secondary heating of the steam and reducing the moisture in the steam finally output. By heating the steam twice in a steam channel, the effect of secondary heating can be ensured.

[0012] In some technical schemes, optionally, the steam channel includes: a steam input section and a steam heating section that are interconnected, wherein one end of the steam input section away from the steam heating section is connected to the first heating chamber, and one end of the steam heating section away from the steam input section is connected to the steam outlet channel; wherein, the conduction area of ​​the steam input section is larger than the conduction area of ​​the steam heating section, and at least part of the inner wall of the steam heating section is surrounded by the second heating zone.

[0013] In this technical solution, the steam channel includes two sections, namely the steam input section and the steam heating section. The steam input section is used to connect the first heating chamber. Part of the inner wall of the steam heating section is composed of the second heating zone, and the steam can be heated again by the steam heating section. The cross-sectional area of ​​the steam channel, that is, the conduction area of ​​the steam channel varies along the steam direction, which is specifically reflected in that the conduction area of ​​the steam input section is significantly larger than the conduction area of ​​the steam heating section. By reducing the conduction area of ​​the steam heating section, the steam can be fully in contact with the heating plate, thereby ensuring the effect of the steam heating section heating the steam again.

[0014] In some technical solutions, optionally, the connection between the steam input section and the steam heating section is arranged close to the heating disk, and the steam input section is connected to the first heating chamber through a first connecting channel, and the first connecting channel is arranged on a side of the first heating chamber away from the heating disk.

[0015] In this technical solution, the connection between the steam input section and the steam heating section is relatively close to the heating plate. The first connecting channel between the steam input section and the first heating chamber is far away from the heating plate, that is, the connection between the steam input section and the steam heating section is located on the side of the first connecting channel close to the heating plate. This arrangement can make the first connecting channel be set higher, for example, the first connecting channel can be set close to the top of the first heating chamber, and the steam generally automatically flows upward and gathers at the top of the first heating chamber. Therefore, setting the first connecting channel higher can make the steam in the first heating chamber be better discharged, so that the smoothness of the steam discharge in the first heating chamber can be improved, thereby increasing the discharge speed of the steam. The connection between the steam input section and the steam heating section is set shorter, which can extend the path of the steam input section as much as possible, that is, the steam input section extends from the upper end to the lower end, so that the steam generated by the first heating chamber can be guided to a position close to the heating plate, so that the steam entering the second heating chamber can fully contact the second heating zone of the heating plate and be fully heated, so as to ensure the heating efficiency of the steam being heated twice in the second heating chamber. At the same time, this method also makes the steam channel begin to narrow only when it is close to the heating plate, thus avoiding the situation where the steam flow is obstructed due to the premature narrowing of the steam channel. In this way, the steam flow speed in the steam channel can be guaranteed as much as possible while ensuring the secondary heating effect.

[0016] Among them, since the density of steam is low and it always flows upward, the steam generated by the first heating chamber always gathers at the top. Therefore, in the present application, the first connecting channel is arranged near the top of the first heating chamber, so that the steam in the first heating chamber can flow more easily to the second heating chamber, thereby increasing the steam discharge rate.

[0017] In other embodiments, the first communication channel may also be arranged near the heating plate.

[0018] In some technical solutions, optionally, the conduction area at the connection between the steam input section and the steam heating section is smaller than the minimum conduction area of ​​the steam input section, and smaller than the minimum conduction area of ​​the steam heating section.

[0019] In this technical solution, the conduction area at the connection between the steam input section and the steam heating section is the smallest. The conduction area at this point is smaller than the conduction areas of the steam input section and the steam heating section. By narrowing the conduction area at this point, the steam can be compressed to increase the flow rate of the steam in the steam heating section, ensuring that the steam can flow smoothly in the relatively narrow steam heating section, avoiding the situation where the steam cannot flow smoothly due to the narrowing of the steam heating section.

[0020] In some technical solutions, optionally, the steam input section is arranged in an annular shape and is located on the inner side of the first heating chamber, and the steam heating section is located on the inner side of the steam input section.

[0021] In this technical solution, the steam input section is arranged in a ring shape around the steam heating section, that is, the steam heating section is located in the middle of the steam input section, and steam can enter from all directions of the steam heating section. This arrangement can expand the area of ​​the steam input section and increase the steam delivery speed.

[0022] In some technical solutions, optionally, the first heating chamber is arranged around the second heating chamber.

[0023] In this technical solution, considering that the pot is generally circular, the first heating chamber is arranged around the second heating chamber, so that the steam can be heated in the middle of the entire steam heating device and then discharged from the middle. In this way, when the steam generating device is used in a steamer, etc., steam can be supplied from the middle of the steamer, thereby ensuring that the steam is evenly distributed in the pot body, so that the food can be heated more evenly. At the same time, when the steam generating chamber is arranged around the steam input section, the second generating chamber is arranged on the inner side of the steam input section, and a three-layer channel structure can also be formed, making the structure of the entire steam generating device more compact and reasonable.

[0024] In some technical schemes, optionally, the cover body includes: an inner cylinder, which is installed on one side of the heating plate and forms a second heating chamber with the second heating zone of the heating plate; an outer cylinder, which is arranged around the inner cylinder and forms a first heating chamber with the first heating zone of the heating plate; wherein a bottom plate is provided at one end of the inner cylinder close to the heating plate, and an end of the inner cylinder away from the heating plate is an open structure, and a steam heating section is formed between the bottom plate and the second heating zone of the heating plate; wherein a steam outlet channel is provided on the bottom plate.

[0025] In this technical solution, the cover body can be formed by two parts, namely the outer cylinder and the inner cylinder. That is, it is equivalent to forming a first heating chamber by the outer cylinder and the heating plate, and forming a second heating chamber by the inner cylinder and the heating plate. In this arrangement, the inner and outer two-layer cylinder structure can form two inner and outer heating chambers with the heating plate, so that water can be heated into steam through the outer side of the heating plate, and then the middle part of the heating plate can be used to heat the water for a second time. In addition, since the cover body of this structure is roughly cylindrical, it is more convenient to use in structures such as pot bodies, that is, the steam generating device of this structure can be more suitable for structures such as electric steamers, which provides convenience for applying the steam generating device to electric steamers.

[0026] At the same time, the inner cylinder is a structure with one end closed and the other end open. During installation, the closed end of the inner cylinder can be brought close to the second heating zone of the heating plate to form a relatively narrow steam heating section with the second heating zone of the heating plate, so that the heating plate can fully heat the food. At the same time, a steam outlet channel can be provided on the bottom plate, and the steam that is fully heated in the steam heating section can be discharged along the steam outlet channel.

[0027] In some technical solutions, optionally, the cover body includes: a sealing ring, which is arranged at the connection between the heating disk and the outer cylinder to seal the gap between the heating disk and the outer cylinder.

[0028] The sealing ring can achieve sealing between the outer cylinder and the heating plate, thereby preventing water leakage in the outer cylinder.

[0029] In some technical solutions, optionally, the outer cylinder includes an inner enclosure and an outer enclosure, and the inner enclosure and the outer enclosure form an opening at one end close to the heating plate, and the inner cylinder is installed in the space surrounded by the inner enclosure, wherein the inner cylinder and the inner enclosure form a steam input section.

[0030] In this technical solution, the outer cylinder and the inner cylinder are two structures, and the two are arranged separately, so that the two can be completely repaired and replaced separately. At the same time, a gap is arranged between the outer cylinder and the inner cylinder, so that a steam input section can be formed by the inner cylinder and the outer cylinder, so that the steam generated by the first heating chamber can be guided toward the heating plate through the steam input section, so that the steam in the second heating chamber can flow to a position close to the heating plate and be fully heated by the heating plate, so that the steam can be fully heated again in the second heating chamber.

[0031] Optionally, the inner layer enclosure and the outer layer enclosure are connected to form an integrated structure. Further, the inner layer enclosure and the outer layer enclosure are integrally formed.

[0032] Optionally, the inner and outer enclosures are connected to each other at one end away from the heating disk, or are not connected to each other at one end away from the heating disk, so that a steam outlet can be formed at one end of the inner and outer enclosures away from the heating disk.

[0033] In some technical solutions, the housing may further include: a separator, which is arranged at one end of the inner cylinder close to the heating plate and is located between the inner cylinder and the inner layer enclosure. The inner cylinder further includes a first flange, which is arranged at one end of the inner cylinder away from the heating plate. The steam input section is surrounded by the inner cylinder, the first flange, the separator, and the inner layer enclosure. The steam heating section is surrounded by the inner layer enclosure, the separator, the bottom plate, and the second heating area of ​​the heating plate. The separator is provided with a second connecting channel that connects the steam heating section and the steam input section.

[0034] In this technical solution, the upper end of the inner tube is provided with a first flange, and the lower end is provided with a partition, so that the first flange and the partition can form a relatively closed steam input section with the outer tube. At the same time, the partition can also narrow the connection between the steam heating section and the steam input section, so as to increase the speed of steam entering the steam heating section. Specifically, in order to facilitate the determination of the conduction area at the connection between the steam heating section and the steam input section, a second connecting channel can be provided on the partition to connect the steam heating section and the steam input section.

[0035] The separator can be detachably mounted on the inner tube, that is, the separator and the inner tube are two independent parts. Alternatively, the separator and the inner tube are an integrated structure, which can reduce the use of one part. For example, the separator can be set at the lower end of the inner tube as the second flange of the inner tube.

[0036] In some technical solutions, optionally, a first support platform is provided on the outer cylinder, and the inner cylinder is mounted on the first support platform by overlapping the first flange. Optionally, a positioning boss is provided on the outer cylinder to define the installation position of the first flange.

[0037] In this technical solution, a circle of positioning bosses is provided on the outer cylinder, so that the first flange of the outer cylinder can be limitedly installed in the positioning bosses, so that the inner cylinder can be positioned to avoid the position of the inner cylinder from being offset. In addition, a support platform can also be provided on the outer cylinder to realize the hanging of the inner cylinder on the outer cylinder.

[0038] Furthermore, the positioning boss is arranged on the end surface of the outer tube away from the heating plate. The inner tube is overlapped and mounted on the end surface of the outer tube away from the heating plate through the first flange.

[0039] In some technical solutions, optionally, a sealing ring is provided at the connection between the partition and the outer cylinder to seal the gap between the partition and the outer cylinder.

[0040] In this technical solution, the sealing ring is used to seal the gap between the partition and the outer cylinder, so that the outer cylinder and the inner cylinder can be tightly connected to prevent steam from leaking from the gap between the two.

[0041] In some technical solutions, optionally, a slot is formed between the partition and the outer tube, and the sealing ring includes a first sealing portion, which is limitedly installed in the slot. The sealing ring also includes a second sealing portion, which is connected to the first sealing portion and abuts against the heating plate to seal the gap between the outer tube and the heating plate. The sealing ring also includes a reinforcing rib, which is used to fit the end face of the outer tube close to the heating plate, and the first sealing portion, the second sealing portion and the reinforcing rib are connected to each other.

[0042] In this technical solution, a slot is formed between the partition and the outer tube, and the sealing ring can be clamped and installed between the two through the slot and the first sealing part. At the same time, the sealing ring also abuts against the heating plate through the second sealing part to achieve the sealing of the gap between the outer tube and the heating plate, thereby preventing water from flowing out of the gap between the outer tube and the heating plate. At the same time, in order to ensure that the sealing ring has sufficient elasticity, the sealing ring also includes a heating rib, which can abut against the end face of the outer tube.

[0043] In some technical solutions, optionally, the heating plate further includes: a convex rib, which is arranged on the heating plate and extends into the outer tube, and the convex rib and the side of the outer tube close to the second heating zone form a steam input section; a first connecting channel is formed between the convex rib and the bottom of the outer tube, or a first connecting channel is arranged on the convex rib, and the first connecting channel is used to connect the steam input section and the first heating chamber.

[0044] In this technical solution, in order to enclose a steam input section in the first heating chamber, a long convex rib is provided on the heating plate and extends into the outer tube, so that the convex rib and the side wall of the outer tube can enclose a steam input section, thereby guiding the steam at the top of the outer tube toward the heating plate, and then inputting the steam into the heating plate from the direction close to the heating plate. The connecting port between the first heating chamber and the second heating chamber can be formed by the gap between the convex rib and the bottom of the outer tube, or can be an additional channel provided on the convex rib.

[0045] Exemplarily, the convex rib and the heating plate are an integrated structure or the convex rib and the heating plate are integrally formed.

[0046] In other embodiments, a third enclosure may be additionally provided in the outer tube to form a steam input section in the outer tube that can guide the steam to flow from top to bottom.

[0047] In some technical solutions, optionally, a groove with an opening facing the heating plate is provided on the bottom plate, and the second heating area of ​​the heating plate is bent toward the cover body to form a first protrusion, which extends into the groove and forms a steam heating section with the bottom wall and side walls of the groove.

[0048] In this technical solution, the bottom plate of the inner cylinder can be recessed inward to form a groove with an opening facing downward. In order to reduce the distance between the heating plate and the bottom of the inner cylinder, that is, to reduce the internal height of the second heating chamber, the heating plate is bent in this application so that an upwardly protruding structure, namely, the first protrusion, can be formed on the heating plate. In this way, the cooperation of the first protrusion and the groove can limit a second heating chamber with a smaller width, thereby achieving effective secondary heating of the steam.

[0049] In some technical solutions, optionally, the outer cylinder and the inner cylinder are an integrated structure. Optionally, the wall thickness of the outer cylinder and the inner cylinder is consistent.

[0050] In this technical solution, the outer tube and the inner tube are an integrated structure, which can improve the strength of both and reduce the number of parts. The wall thickness of the outer tube and the inner tube is consistent, so that the outer tube and the inner tube can be formed by repeatedly bending a large plate, which facilitates the processing of the cover.

[0051] In some technical solutions, optionally, the steam generating device further includes: a steam outlet chamber, which is arranged on a side of the second heating chamber opposite to the heating plate and is connected to the second heating chamber through a steam outlet channel.

[0052] In this technical solution, the heating plate forms the bottom of the second heating chamber, so the side of the second heating chamber opposite to the heating plate is the top of the second heating chamber. By arranging a steam outlet chamber at the top of the second heating chamber, the steam in the second heating chamber can be discharged upward after being heated twice. In this way, since the steam outlet chamber and the second heating chamber are stacked in the height direction, the height space can be fully utilized. In addition, due to the low density of steam, steam will normally go upward, so that the steam discharge direction is along the gravity direction, thereby increasing the steam discharge rate and avoiding the collision between the steam and the top of the second heating chamber to cause energy loss. In addition, by setting the steam outlet chamber, the generated steam can be buffered, thereby avoiding the steam from being discharged in time and blocking the steam outlet channel.

[0053] In some technical solutions, optionally, a second support platform is provided on the outer side wall of the cover body.

[0054] In this technical solution, a corresponding mounting structure can be provided on the base outside the heating plate or the steam generating device, so that the second support platform can be overlapped and mounted on the mounting structure, thereby realizing the detachable installation of the cover body above the heating plate.

[0055] Optionally, the cover body can be detachably installed on one side of the heating plate, that is, the cover body and the heating plate are separately arranged. After using the steam generating device, the cover body can be removed to clean the scale in the heating chamber, thereby avoiding the situation where the heating chamber is not cleaned for a long time, resulting in low heating efficiency or even scale blocking the pipeline.

[0056] Specifically, the cover body is placed on one side of the heating plate, and can bear the weight through the heating plate or other parts.

[0057] In some technical solutions, optionally, the heating plate includes: a plate body, on which a first heating area and a second heating area are arranged; a first heating element, arranged corresponding to the first heating area; and a second heating element, arranged corresponding to the second heating area.

[0058] In this technical solution, the heating plate includes two heating elements, which are arranged in different areas, so that heating can be performed separately by the two heating elements. For example, the first heating element can heat the first heating chamber to heat water into steam. At the same time, the second heating element can heat the second heating chamber to perform secondary heating on the steam.

[0059] In some technical solutions, the first heating element and the second heating element are optionally arranged on the side of the plate away from the cover, that is, the first heating element and the second heating element are arranged at the bottom of the heating plate, so as to avoid direct contact between the first heating element and the second heating element and water or steam.

[0060] In some technical solutions, optionally, the heating disk is a die-cast disk, that is, the first heating element and the second heating element are directly die-cast inside the disk body.

[0061] In some technical solutions, optionally, a heat dissipation boss and / or heat dissipation ribs are provided on one side of the disk body close to the cover body.

[0062] In this technical solution, the heat dissipation efficiency of the disk can be enhanced by heat dissipation bosses and / or heat dissipation ribs, so that the disk can radiate more heat into the space under the action of two heating elements, thereby improving the heating efficiency.

[0063] The technical solution of the second aspect of the present application provides a cooking utensil, comprising the steam generating device provided by the technical solution of the first aspect.

[0064] According to the cooking utensil provided in the present application, since it includes the steam generating device provided by the technical solution of the first aspect, the cooking utensil also has all the beneficial effects of the steam generating device provided by any technical solution of the first aspect, which will not be described in detail here.

[0065] In some technical solutions, optionally, the cooking utensil further includes: a base assembly, on which the steam generating device is installed; a pot body, which is installed on the base assembly, wherein the steam generating device is located between the base assembly and the pot body, and the pot body is provided with a steam inlet channel connected to the steam outlet channel.

[0066] In the technical solution, the cooking utensil further includes a base assembly. The base assembly is used to accommodate a steam generating device. The pot body is mounted on the base assembly, and collects steam generated by the steam generating device through a steam inlet channel to achieve steam heating of food. This cooking utensil can achieve heating of food by steam.

[0067] Furthermore, a mounting groove is provided on the base assembly, the heating plate is installed in the mounting groove, and the cover body is installed upside down at the notch of the mounting groove to achieve sealing of the notch.

[0068] Further, the base assembly includes a receiving groove, the bottom of which is recessed in a direction away from the groove opening of the receiving groove to form a mounting groove. Further, a third support platform is provided at the groove opening of the mounting groove and protrudes from the bottom of the receiving groove. Optionally, the third support platform is arranged in a ring shape around the circumference of the mounting groove. The third support platform cover is supported and mounted on the third support platform through the second support platform.

[0069] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] 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, in which:

[0071] Figure 1 One of the structural schematic diagrams of a steam generating device according to an embodiment of the present application is shown;

[0072] Figure 2 A schematic diagram of the exploded structure of a steam generating device according to an embodiment of the present application is shown;

[0073] Figure 3 A second structural schematic diagram of a steam generating device according to an embodiment of the present application is shown;

[0074] Figure 4 One of the structural schematic diagrams of a steam generating device according to another embodiment of the present application is shown;

[0075] Figure 5 A schematic diagram showing the exploded structure of a steam generating device according to another embodiment of the present application is shown;

[0076] Figure 6 A second structural schematic diagram of a steam generating device according to another embodiment of the present application is shown.

[0077] Reference numerals:

[0078] 100 steam generating device, 1 heating plate, 12 plate body, 122 first protrusion, 124 convex rib, 14 first heating element, 16 second heating element, 2 cover body, 22 outer cylinder, 222 inner layer enclosure, 224 outer layer enclosure, 226 positioning boss, 228 first support platform, 229 second support platform, 24 inner cylinder, 242 groove, 244 bottom plate, 246 first flange, 26 partition, 3 first heating chamber, 32 first connecting channel, 4 second heating chamber, 42 steam input section, 44 steam heating section, 46 second connecting channel, 5 steam outlet chamber, 6 sealing ring, 62 first sealing part, 64 second sealing part, 66 reinforcing rib, 7 slot, 8 water inlet channel, 9 steam outlet channel, 200 base assembly, 210 mounting groove. DETAILED DESCRIPTION

[0079] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0080] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0081] Refer to the following Figures 1 to 6 The steam generating device 100 and the cooking appliance provided according to some embodiments of the present application are described.

[0082] like Figures 1 to 3 As shown, an embodiment of the first aspect of the present application provides a steam generating device 100, comprising a heating plate 1, a cover body 2, a water inlet channel 8 and a steam outlet channel 9. The heating plate 1 comprises a first heating zone and a second heating zone. The cover body 2 can be detachably installed on one side of the heating plate 1, the cover body 2 and the first heating zone form a first heating chamber 3, and form a second heating chamber 4 with the second heating zone. The first heating chamber 3 and the second heating chamber 4 are interconnected, and the steam generated in the first heating chamber 3 can enter the second heating chamber 4 for secondary heating. The water inlet channel 8 (such as Figure 3 and Figure 5 The steam outlet passage 9 is connected to the second heating chamber 4.

[0083] According to the steam generating device 100 provided in the present application, it includes a heating plate 1, a cover 2, a water inlet channel 8 and a steam outlet channel 9. The heating plate 1 includes a first heating area and a second heating area, and the cover 2 is installed on the heating plate 1, and the first heating area and the second heating area are surrounded by a first heating chamber 3 and a second heating chamber 4, so that the heating plate 1 can be used to heat the water in the first heating chamber 3 for the first time, thereby generating steam, and since the first heating chamber 3 and the second heating chamber 4 are interconnected, the steam generated in the first heating chamber 3 can enter the second heating chamber 4 for secondary heating, so that the temperature of the steam can be increased, thereby improving the cooking effect of the food. Since the present application heats the water through the first heating chamber 3 and performs secondary heating through the second heating chamber 4, a water inlet channel 8 connected to the first heating chamber 3 is also provided to supply water to the first heating chamber 3. Similarly, after the steam is secondary heated in the second heating chamber 4, it can be discharged through the steam outlet channel 9 connected to the second heating chamber 4. This structure can heat water twice through the heating plate 1, so that the temperature of the generated steam is relatively high, that is, steam with a temperature higher than 100°C can be generated through the two heatings of the heating plate 1. At the same time, due to this method, the steam can be heated twice, so that the moisture in the steam finally output can be reduced. This can ensure the temperature of the food when the steam is heated, so that the temperature of the cooking cavity and the food can be quickly increased, and can also reduce the residual water in the cooking cavity and the food container after the food is cooked.

[0084] In addition, the steam generating device 100 of the present application has two heating chambers surrounded by different areas of the cover body 2 and the heating plate 1, so there is no complicated pipeline structure inside the steam generating device 100, so it is easier to clean. At the same time, this arrangement has a relatively simple structure, so it is easier to process and disassemble, so it is easier to clean the inside of the steam generating device 100.

[0085] in, Figure 1 The arrows in the diagram indicate the direction of steam flow.

[0086] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the second heating chamber 4 includes: a steam channel, one end of the steam channel is connected to the first heating chamber 3, and the other end of the steam channel is connected to the steam outlet channel 9, and at least part of the inner wall of the steam channel is surrounded by the second heating area.

[0087] In this embodiment, the second heating chamber 4 includes a steam channel, and the steam discharged from the first heating chamber 3 can enter the steam channel. At least part of the inner wall of the steam channel is surrounded by the second heating zone. Therefore, when the steam flows through the steam channel, it can be heated by the second heating zone of the heating plate 1, thereby achieving secondary heating of the steam and reducing the moisture in the steam finally output. By heating the steam twice in a steam channel, the effect of secondary heating can be ensured.

[0088] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the steam channel includes: a steam input section 42 and a steam heating section 44 which are interconnected, wherein one end of the steam input section 42 away from the steam heating section 44 is connected to the first heating chamber 3, and one end of the steam heating section 44 away from the steam input section 42 is connected to the steam outlet channel 9; wherein the conduction area of ​​the steam input section 42 is larger than the conduction area of ​​the steam heating section 44, and at least part of the inner wall of the steam heating section 44 is surrounded by the second heating zone.

[0089] In this embodiment, the steam channel includes two sections, namely a steam input section 42 and a steam heating section 44. The steam input section 42 is used to connect the first heating chamber 3. Part of the inner wall of the steam heating section 44 is composed of the second heating zone, and the secondary heating of the steam can be achieved through the steam heating section 44. The cross-sectional area of ​​the steam channel, that is, the conduction area of ​​the steam channel varies along the steam direction, which is specifically reflected in that the conduction area of ​​the steam input section 42 is significantly larger than the conduction area of ​​the steam heating section 44. By reducing the conduction area of ​​the steam heating section 44, the steam can be fully in contact with the heating plate 1, thereby ensuring the effect of the steam heating section 44 on the secondary heating of the steam.

[0090] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the connection between the steam input section 42 and the steam heating section 44 is arranged close to the heating disk 1 , and the steam input section 42 is connected to the first heating chamber 3 through the first connecting channel 32 , and the first connecting channel 32 is arranged on the side of the first heating chamber 3 away from the heating disk 1 .

[0091] In this embodiment, the connection between the steam input section 42 and the steam heating section 44 is relatively close to the heating plate 1. However, the steam input section 42 and the first connecting channel 32 of the first heating chamber 3 are relatively far from the heating plate 1, that is, the connection between the steam input section 42 and the steam heating section 44 is located on the side of the first connecting channel 32 close to the heating plate 1. This arrangement allows the first connecting channel 32 to be arranged higher. For example, the first connecting channel 32 can be arranged close to the top of the first heating chamber 3, and the steam generally flows upward automatically and gathers at the top of the first heating chamber 3. Therefore, the first connecting channel 32 is arranged higher, so that the steam in the first heating chamber 3 can be discharged better, thereby improving the smoothness of the steam discharge in the first heating chamber 3, thereby increasing the steam discharge speed. The connection between the steam input section 42 and the steam heating section 44 is set relatively low, so that the path of the steam input section 42 can be extended as much as possible, that is, the steam input section 42 extends from the upper end to the lower end, so that the steam generated by the first heating chamber 3 can be guided to a position close to the heating plate 1, so that the steam entering the second heating chamber 4 can fully contact the second heating zone of the heating plate 1 and be fully heated, so as to ensure the heating efficiency of the steam being heated twice in the second heating chamber 4. At the same time, this also makes the steam channel begin to narrow only when it is close to the position of the heating plate 1, so as to avoid the situation where the steam flow is blocked due to the premature narrowing of the steam channel, so as to ensure the secondary heating effect while ensuring the flow speed of the steam in the steam channel as much as possible.

[0092] Among them, since the density of steam is low and it always flows upward, the steam generated by the first heating chamber 3 always gathers at the top. Therefore, in the present application, the first connecting channel 32 is arranged near the top of the first heating chamber 3, so that the steam in the first heating chamber 3 can flow more easily to the second heating chamber, thereby increasing the steam discharge rate.

[0093] In other embodiments, the first connecting channel 32 may also be disposed near the heating plate 1 .

[0094] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the conduction area at the connection between the steam input section 42 and the steam heating section 44 is smaller than the minimum conduction area of ​​the steam input section 42 , and smaller than the minimum conduction area of ​​the steam heating section 44 .

[0095] In this embodiment, the conduction area at the connection between the steam input section 42 and the steam heating section 44 is the smallest. The conduction area at this location is smaller than the conduction areas of the steam input section 42 and the steam heating section 44. By narrowing the conduction area at this location, the steam can be compressed to increase the flow speed of the steam in the steam heating section 44, ensuring that the steam can flow smoothly in the relatively narrow steam heating section 44, and avoiding the situation where the steam cannot flow smoothly due to the narrowing of the steam heating section 44.

[0096] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the steam input section 42 is arranged in an annular shape and is located on the inner side of the first heating chamber 3 , and the steam heating section 44 is located on the inner side of the steam input section 42 .

[0097] In this embodiment, the steam input section 42 is arranged in a ring shape around the steam heating section 44, that is, the steam heating section 44 is located in the middle of the steam input section 42, and steam can enter from all directions of the steam heating section 44. This arrangement can expand the area of ​​the steam input section 42 and increase the steam delivery speed.

[0098] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the first heating chamber 3 is arranged around the second heating chamber 4 .

[0099] In this embodiment, considering that the pot is generally circular, the first heating chamber 3 is arranged around the second heating chamber 4, so that the steam can be heated in the middle of the entire steam heating device and then discharged from the middle. In this way, when the steam generating device 100 is used in a steamer, etc., steam can be supplied from the middle of the steamer, thereby ensuring that the steam is evenly distributed in the pot body, so that the food can be heated more evenly. At the same time, when the steam generating chamber is arranged around the steam input section 42, the second generating chamber is arranged on the inner side of the steam input section 42, and a three-layer channel structure can also be formed, making the structure of the entire steam generating device 100 more compact and reasonable.

[0100] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the housing 2 comprises: an inner cylinder 24, which is installed on one side of the heating plate 1 and forms a second heating chamber 4 with the second heating zone of the heating plate 1; an outer cylinder 22, which is arranged around the inner cylinder 24 and forms a first heating chamber 3 with the first heating zone of the heating plate 1. Figure 1 , Figure 2 and Figure 3As shown, a bottom plate 244 is provided at one end of the inner cylinder 24 close to the heating disk 1, and an end of the inner cylinder 24 away from the heating disk 1 is an open structure, and a steam heating section 44 is formed between the bottom plate 244 and the second heating area of ​​the heating disk 1; wherein, a steam outlet channel 9 is provided on the bottom plate 244.

[0101] In this embodiment, the cover body 2 can be formed by two parts, namely the outer cylinder 22 and the inner cylinder 24. That is, the first heating chamber 3 is enclosed by the outer cylinder 22 and the heating plate 1, and the second heating chamber 4 is enclosed by the inner cylinder 24 and the heating plate 1. In this arrangement, the inner and outer two-layer cylinder structure can be used to form two inner and outer heating chambers with the heating plate 1, so that water can be heated into steam through the outer side of the heating plate 1, and then the middle part of the heating plate 1 can be used to heat the water for a second time. In addition, in this structure, since the cover body 2 is roughly cylindrical, it is more convenient to use in structures such as pot bodies, that is, the steam generating device 100 of this structure can be more suitable for structures such as electric steamers, which provides convenience for applying the steam generating device 100 to electric steamers.

[0102] Meanwhile, the inner cylinder 24 is a structure with one end closed and the other end open. During installation, the closed end of the inner cylinder 24 can be brought close to the second heating zone of the heating plate 1 to form a relatively narrow steam heating section 44 with the second heating zone of the heating plate 1, so that the heating plate 1 can fully heat the food. Meanwhile, a steam outlet channel 9 can be provided on the bottom plate 244, and the steam fully heated in the steam heating section 44 can be discharged along the steam outlet channel 9.

[0103] In some embodiments, optionally, the cover body 2 includes: a sealing ring 6, which is arranged at the connection between the heating plate 1 and the outer cylinder 22 to seal the gap between the heating plate 1 and the outer cylinder 22.

[0104] The sealing ring 6 can achieve sealing between the outer tube 22 and the heating plate 1 , thereby preventing water in the outer tube 22 from leaking.

[0105] In some embodiments, optionally, Figure 1 , Figure 2 and Figure 3 As shown, the outer cylinder 22 includes an inner layer enclosure 222 and an outer layer enclosure 224, and an opening is formed at one end of the inner layer enclosure 222 and the outer layer enclosure 224 close to the heating plate 1, and the inner cylinder 24 is installed in the space surrounded by the inner layer enclosure 222, wherein the inner cylinder 24 and the inner layer enclosure 222 form a steam input section 42.

[0106] In this embodiment, the outer cylinder 22 and the inner cylinder 24 are two structures, and the two are separately arranged, so that the two can be completely separately repaired and replaced. At the same time, a gap is arranged between the outer cylinder 22 and the inner cylinder 24, so that a steam input section 42 can be formed by the inner cylinder 24 and the outer cylinder 22, so that the steam generated by the first heating chamber 3 can be guided toward the direction of the heating plate 1 through the steam input section 42, so that the steam in the second heating chamber 4 can flow to a position close to the heating plate 1 and be fully heated by the heating plate 1, so that the steam can be fully heated for a second time in the second heating chamber 4.

[0107] Optionally, the inner layer enclosure 222 and the outer layer enclosure 224 are connected to form an integrated structure. Further, the inner layer enclosure 222 and the outer layer enclosure 224 are integrally formed.

[0108] Optionally, the inner and outer panels 222 and 224 are connected to each other at one end away from the heating plate 1, or the inner and outer panels 222 and 224 are not connected at one end away from the heating plate 1, so that a steam outlet can be formed at one end of the inner and outer panels 222 and 224 away from the heating plate 1.

[0109] In some embodiments, optionally, Figure 1 , Figure 2 and Figure 3 As shown, the housing 2 further includes a separator 26, which is arranged at one end of the inner cylinder 24 close to the heating plate 1 and between the inner cylinder 24 and the inner layer enclosure 222. The inner cylinder 24 further includes a first flange 246, which is arranged at one end of the inner cylinder 24 away from the heating plate 1. The steam input section 42 is surrounded by the inner cylinder 24, the first flange 246, the separator 26, and the inner layer enclosure 222. The steam heating section 44 is surrounded by the inner layer enclosure 222, the separator 26, the bottom plate 244 and the second heating area of ​​the heating plate 1; the separator 26 is provided with a second connecting channel 46 that connects the steam heating section 44 with the steam input section 42.

[0110] In this embodiment, the upper end of the inner cylinder 24 is provided with a first flange 246, so that the first flange 246 and the partition 26 can enclose a relatively closed steam input section 42 with the outer cylinder 22. At the same time, the partition 26 can also narrow the connection between the steam heating section 44 and the steam input section 42, so as to increase the speed of steam entering the steam heating section 44. Specifically, in order to facilitate the determination of the conduction area at the connection between the steam heating section 44 and the steam input section 42, a second connecting channel 46 can be provided on the partition 26 to connect the steam heating section 44 with the steam input section 42.

[0111] The partition 26 can be detachably mounted on the inner tube 24, that is, the partition 26 and the inner tube 24 are two independent parts. Figure 2 As shown, the separator 26 and the inner tube 24 are an integral structure, which can reduce the use of one part. For example, the separator 26 can be set at the lower end of the inner tube 24 as the second flange of the inner tube 24.

[0112] In some embodiments, optionally, Figure 1 , Figure 2 and Figure 3 As shown, the outer cylinder 22 is provided with a first support platform 228, and the inner cylinder 24 is overlapped and installed on the first support platform 228 through the first flange 246. Optionally, the outer cylinder 22 is provided with a positioning boss 226 to define the installation position of the first flange 246.

[0113] In this embodiment, a circle of positioning bosses 226 is provided on the outer cylinder 22, so that the first flange 246 of the outer cylinder 22 can be limitedly installed in the positioning bosses 226, so that the inner cylinder 24 can be positioned to prevent the position of the inner cylinder 24 from being offset. In addition, a support platform can also be provided on the outer cylinder 22 to achieve the hanging of the inner cylinder 24 on the outer cylinder 22.

[0114] Furthermore, the positioning boss 226 is arranged on the end surface of the outer tube 22 away from the heating plate 1. The inner tube 24 is overlapped and mounted on the end surface of the outer tube 22 away from the heating plate 1 through the first flange 246.

[0115] In some embodiments, optionally, Figure 1 and Figure 2 As shown, the sealing ring 6 is disposed at the connection between the partition 26 and the outer cylinder 22 to seal the gap between the partition 26 and the outer cylinder 22 .

[0116] In this embodiment, the sealing ring 6 is used to seal the gap between the partition 26 and the outer cylinder 22, so that the outer cylinder 22 and the inner cylinder 24 can be tightly connected to prevent steam from leaking from the gap therebetween.

[0117] In some embodiments, optionally, Figure 1 and Figure 2 As shown, a slot 7 is formed between the partition 26 and the outer tube 22, and the sealing ring 6 includes a first sealing portion 62, which is limitedly installed in the slot 7. The sealing ring 6 also includes a second sealing portion 64, which is connected to the first sealing portion 62 and abuts against the heating plate 1 to seal the gap between the outer tube 22 and the heating plate 1. The sealing ring 6 also includes a reinforcing rib 66, which is used to fit the end surface of the outer tube 22 close to the heating plate 1, and the first sealing portion 62, the second sealing portion 64 and the reinforcing rib 66 are connected to each other.

[0118] In this embodiment, a clamping groove 7 is formed between the partition 26 and the outer cylinder 22, and the sealing ring 6 can be clamped and installed between the two through the clamping groove 7 and the first sealing portion 62. At the same time, the sealing ring 6 also abuts against the heating plate 1 through the second sealing portion 64, so as to seal the gap between the outer cylinder 22 and the heating plate 1, thereby preventing water from flowing out from the gap between the outer cylinder 22 and the heating plate 1. At the same time, in order to ensure that the sealing ring 6 has sufficient elasticity, the sealing ring 6 also includes a heating rib, and the reinforcing rib 66 can abut against the end surface of the outer cylinder 22.

[0119] In some embodiments, optionally, Figure 4 and Figure 5 As shown, the heating plate 1 also includes: a convex rib 124, which is arranged on the heating plate 1 and extends into the outer tube 22, and the convex rib 124 and the side of the outer tube 22 close to the second heating zone form a steam input section 42; a first connecting channel is formed between the convex rib 124 and the bottom of the outer tube 22, or a first connecting channel 32 is arranged on the convex rib 124, and the first connecting channel 32 is used to connect the steam input section 42 and the first heating chamber 3.

[0120] In this embodiment, in order to enclose a steam input section 42 in the first heating chamber 3, a relatively long rib 124 is provided on the heating plate 1 and extends into the outer tube 22, so that the rib 124 and the side wall of the outer tube 22 can enclose a steam input section 42, thereby guiding the steam at the top of the outer tube 22 toward the heating plate 1, and then inputting the steam into the heating plate 1 from the direction close to the heating plate 1. The connecting port between the first heating chamber 3 and the second heating chamber 4 can be formed by the gap between the rib 124 and the bottom of the outer tube 22, or can be an additional channel provided on the rib 124.

[0121] For example, Figure 4 As shown, the convex rib 124 and the heating plate 1 are an integrated structure or the convex rib 124 and the heating plate 1 are integrally formed.

[0122] In other embodiments, a third enclosure may be additionally provided in the outer tube 22 to form a steam input section 42 in the outer tube 22 that can guide the steam to flow from top to bottom.

[0123] In some embodiments, optionally, Figure 4 and Figure 5 As shown, a groove 242 with an opening toward the heating plate 1 is provided on the bottom plate 244, and the second heating area of ​​the heating plate 1 is bent toward the cover body 2 to form a first protrusion 122. The first protrusion 122 extends into the groove 242 and forms a steam heating section 44 together with the bottom wall and side walls of the groove 242.

[0124] In this embodiment, the bottom plate 244 of the inner cylinder 24 can be recessed inward to form a groove 242 with an opening facing downward, and in order to reduce the distance between the heating plate 1 and the bottom of the inner cylinder 24, that is, to reduce the internal height of the second heating chamber 4, the present application bends the heating plate 1 so as to form an upwardly protruding structure on the heating plate 1, that is, the first protrusion 122. In this way, the cooperation between the first protrusion 122 and the groove 242 can limit a second heating chamber 4 with a smaller width, thereby achieving effective secondary heating of steam.

[0125] In some embodiments, optionally, Figure 4 and Figure 5 As shown, the outer cylinder 22 and the inner cylinder 24 are an integral structure. Optionally, the wall thickness of the outer cylinder 22 and the inner cylinder 24 is the same.

[0126] In this embodiment, the outer cylinder 22 and the inner cylinder 24 are an integrated structure, which can improve the strength of both and reduce the number of parts. The outer cylinder 22 and the inner cylinder 24 have the same wall thickness, so that the outer cylinder 22 and the inner cylinder 24 can be formed by repeatedly bending a large plate, thereby facilitating the processing of the cover body 2.

[0127] In other embodiments, Figures 1 to 3 As shown, the outer cylinder 22 and the inner cylinder 24 may also be a split structure, and the two may be detachably connected.

[0128] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the steam generating device 100 further includes: a steam outlet chamber 5 , which is arranged on a side of the second heating chamber 4 opposite to the heating plate 1 and is connected to the second heating chamber 4 through a steam outlet channel 9 .

[0129] In this embodiment, the heating plate 1 forms the bottom of the second heating chamber 4, so the side of the second heating chamber 4 opposite to the heating plate 1 is the top of the second heating chamber 4. By arranging the steam outlet chamber 5 at the top of the second heating chamber 4, the steam in the second heating chamber 4 can be discharged upward after being reheated. In this way, since the steam outlet chamber 5 and the second heating chamber 4 are stacked in the height direction, the height space can be fully utilized. In addition, due to the low density of steam, the steam will normally go upward, so that the steam discharge direction is along the gravity direction, thereby increasing the steam discharge rate and avoiding the steam from colliding with the top of the second heating chamber 4 to cause energy loss. In addition, by arranging the steam outlet chamber 5, the generated steam can be buffered, thereby avoiding the steam from clogging the steam outlet channel 9 due to not being discharged in time.

[0130] In some embodiments, optionally, Figure 1 and Figure 4As shown, a second support platform 229 is provided on the outer side wall of the cover body 2 .

[0131] In this embodiment, a corresponding mounting structure can be provided on the heating plate 1 or the seat outside the steam generating device 100, so that the second support platform 229 can be overlapped and installed on the mounting structure, thereby realizing the detachable installation of the cover body 2 above the heating plate 1.

[0132] Alternatively, if Figure 1 and Figure 4 As shown, the cover body 2 can be detachably installed on one side of the heating plate 1, that is, the cover body 2 and the heating plate 1 are separately arranged. After using the steam generating device 100, the cover body 2 can be removed to clean the scale in the heating chamber, thereby avoiding the situation where the heating chamber is not cleaned for a long time, resulting in low heating efficiency or even scale blocking the pipeline.

[0133] Specifically, the cover body 2 is placed on one side of the heating plate 1, and can bear the weight through the heating plate 1 or other parts.

[0134] In some embodiments, optionally, Figure 1 and Figure 4 As shown, the heating plate 1 comprises: a plate body 12, on which a first heating area and a second heating area are arranged; a first heating element 14, arranged corresponding to the first heating area; and a second heating element 16, arranged corresponding to the second heating area.

[0135] In this embodiment, the heating plate 1 includes two heating elements, which are arranged in different areas, so that heating can be performed separately by the two heating elements. For example, the first heating chamber 3 can be heated by the first heating element 14 to heat water into steam. At the same time, the second heating chamber 4 can be heated by the second heating element 16 to perform secondary heating on the steam.

[0136] In some embodiments, the first heating element 14 and the second heating element 16 are optionally arranged on the side of the plate 12 away from the cover 2. That is, the first heating element 14 and the second heating element 16 are arranged at the bottom of the heating plate 1, so as to avoid direct contact between the first heating element 14 and the second heating element 16 and water or steam.

[0137] In some embodiments, optionally, the heating disc 1 is a die-cast disc, that is, the first heating element 14 and the second heating element 16 are directly die-cast inside the disc body 12 .

[0138] In some embodiments, optionally, a heat dissipation boss and / or heat dissipation ribs are provided on one side of the disk body 12 close to the cover body 2 .

[0139] In this embodiment, the heat dissipation efficiency of the disk body 12 can be enhanced by heat dissipation bosses and / or heat dissipation ribs, so that the disk body 12 can radiate more heat into the space under the action of two heating elements, thereby improving the heating efficiency.

[0140] An embodiment of the second aspect of the present application provides a cooking appliance, comprising the steam generating device 100 provided by the embodiment of the first aspect.

[0141] According to the cooking utensil provided in the present application, since it includes the steam generating device 100 provided in the embodiment of the first aspect, the cooking utensil also has all the beneficial effects of the steam generating device 100 provided in any embodiment of the first aspect, which will not be repeated here.

[0142] In some embodiments, optionally, Figure 3 and Figure 6 As shown, the cooking appliance further includes: a base assembly 200, and the steam generating device 100 is mounted on the base assembly 200. The cooking appliance further includes a pot body mounted on the base assembly 200, the steam generating device 100 is located between the base assembly 200 and the pot body, and the pot body is provided with a steam inlet channel connected to the steam outlet channel 9.

[0143] In this embodiment, the cooking utensil further includes a base assembly 200. The base assembly 200 is used to accommodate the steam generating device 100. The pot body is mounted on the base assembly 200, and collects the steam generated by the steam generating device 100 through the steam inlet channel to achieve steam heating of the food. This cooking utensil can achieve heating of the food by steam.

[0144] Furthermore, if Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, a mounting groove 210 is provided on the base assembly 200, the heating plate 1 is installed in the mounting groove 210, and the cover body 2 is installed upside down at the notch of the mounting groove 210 to achieve sealing of the notch.

[0145] Furthermore, if Figure 3 and Figure 5 As shown, a water inlet channel 8 for supplying water between the cover body 2 and the heating plate 1 is provided on the side wall of the installation groove 210. For example, the water inlet channel 8 can be a through hole provided on the side wall of the installation groove 210.

[0146] Furthermore, if Figure 1 , Figure 3 , Figure 4 and Figure 6As shown, the base assembly 200 includes a receiving groove, the bottom of which is recessed in a direction away from the groove of the receiving groove to form a mounting groove 210. Further, a third support platform protruding from the bottom of the receiving groove is provided at the groove of the mounting groove 210. Optionally, the third support platform is arranged in a ring shape around the circumference of the mounting groove 210. The third support platform cover body 2 is supported and installed on the third support platform by the second support platform 229.

[0147] The following takes a steamer as an example to further introduce the steam generating device 100 and cooking utensils in the present application.

[0148] Most steamers on the market currently generate steam by directly heating water. The steam temperature is usually only 100°C and some water is mixed in it. When using this steam to cook food, on the one hand, the steam temperature is not high enough, and the heating rate of the cooking cavity and food is not fast enough. On the other hand, the water mixed in the water vapor will cause more residual water in the cavity and food container after cooking. Some products use steam generators to generate superheated steam with a temperature higher than 100°C, but because the steam generator has a closed pipeline inside, it cannot be cleaned. After a period of use, scale will be generated in the pipeline, which will reduce the heating efficiency and even cause scale to block the pipeline.

[0149] In order to solve the above problems, this embodiment proposes a heating plate 1 structure capable of generating superheated steam. Figures 1 to 3 As shown, its main structure includes the energy-gathering ring inner cavity (equivalent to the inner cylinder 24 of the previous embodiment), the sealing ring 6, the energy-gathering ring (equivalent to the outer cylinder 22 of the previous embodiment), the heating plate 1 assembly (equivalent to the combination of the heating plate 1 and two heating elements of the previous embodiment), and the machine base assembly. The heating plate 1 assembly is assembled on the machine base assembly; the energy-gathering ring and the energy-gathering ring inner cavity are assembled together, and the sealing ring 6 is fixed, that is, the energy-gathering ring, the energy-gathering ring inner cavity, and the sealing ring 6 together constitute the energy-gathering ring assembly, and the assembly method of the energy-gathering ring and the energy-gathering ring inner cavity is not limited, such as buckle, screw, glue, etc.

[0150] The energy gathering ring assembly and the machine base assembly are provided with matching buckles. When in use, the energy gathering ring assembly is detachably assembled on the machine base assembly. After assembly, the sealing ring 6 contacts the surface of the heating plate 1 assembly and forms a seal, thereby dividing the surface of the heating plate 1 assembly into two areas, wherein the outer ring contacts the water, heats the water to generate steam, and the steam enters the inner ring under the guidance of the channel in the energy gathering ring assembly. Since the inner ring of the heating plate 1 assembly is not in direct contact with the water, the water vapor can be secondary heated when passing through, thereby further increasing the temperature of the water vapor to generate superheated steam, and the superheated steam is discharged from the air outlet in the middle of the energy gathering ring assembly into the cooking cavity to heat the food, that is, the outer ring is the evaporation zone, and the inner ring is the overheating zone.

[0151] Furthermore, the heating tube of the heating plate 1 assembly is changed from a single heating tube to an inner ring and an outer ring double heating tube. The outer ring heating tube is used to heat water to generate steam, and the inner ring heating tube is used to heat the inner ring of the heating plate 1 assembly, thereby increasing the temperature of the overheating zone to perform secondary heating of the water vapor. This can avoid the problem that a large amount of heat is absorbed by water when a single heating tube is used, resulting in the overheating zone temperature of the heating plate 1 assembly being not high enough.

[0152] Further, such as Figures 4 to 6 As shown, the heating plate 1 assembly is changed into a die-cast plate, the inner and outer ring heating tubes are directly die-cast inside the heating plate 1, and bosses and rib features are added in the middle of the heating plate 1 to increase the heat exchange area between water vapor and the heating plate 1, and a circle of ribs is set to divide the heating plate 1 into two areas: the evaporation area and the overheating area. At this time, the energy-gathering ring assembly can be changed from a three-piece assembly to a single piece, and together with the structural features of the die-cast heating plate 1, it forms a heating cavity. Since this solution relies on the structure of the heating plate 1 itself to divide it into two areas, it is more reliable than the previous solution, and the energy-gathering ring structure is simpler, reducing the number of parts.

[0153] This embodiment achieves the effect of generating superheated steam using a single heating component by partitioning the heating component. There is no need to add a separate secondary heating component, and the heating cavity is open. The heating component can be cleaned after removing the energy-gathering ring component without causing contamination or scale clogging.

[0154] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0155] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A steam generating device, characterized in that: include: The heating plate comprises a first heating area and a second heating area; A cover body is installed on one side of the heating plate, and is used to enclose a first heating chamber with the first heating area, and to enclose a second heating chamber with the second heating area, the first heating chamber and the second heating chamber are connected to each other, and the steam generated in the first heating chamber can enter the second heating chamber for secondary heating; a water inlet channel, connected to the first heating chamber; The steam outlet channel is communicated with the second heating chamber.

2. The steam generating device according to claim 1, characterized in that: The second heating chamber comprises: A steam channel, one end of which is connected to the first heating chamber, the other end of which is connected to the steam outlet channel, and at least part of the inner wall of the steam channel is surrounded by the second heating zone.

3. The steam generating device according to claim 2, characterized in that: The steam channel comprises: A steam input section and a steam heating section connected to each other, wherein one end of the steam input section away from the steam heating section is in communication with the first heating chamber, and one end of the steam heating section away from the steam input section is in communication with the steam outlet channel; The conduction area of ​​the steam input section is larger than the conduction area of ​​the steam heating section, and at least part of the inner wall of the steam heating section is surrounded by the second heating zone.

4. The steam generating device according to claim 3, characterized in that: The connection between the steam input section and the steam heating section is arranged close to the heating disk. The steam input section is connected with the first heating chamber through a first connecting channel. The first connecting channel is arranged on a side of the first heating chamber away from the heating disk.

5. The steam generating device according to claim 3, characterized in that: The conduction area at the connection between the steam input section and the steam heating section is smaller than the minimum conduction area of ​​the steam input section, and smaller than the minimum conduction area of ​​the steam heating section.

6. The steam generating device according to claim 3, characterized in that: The steam input section is arranged in an annular shape and is located inside the first heating chamber, and the steam heating section is located inside the steam input section; and / or The first heating chamber is arranged around the second heating chamber.

7. The steam generating device according to claim 3, characterized in that: The cover body comprises: An inner cylinder is installed on one side of the heating plate and forms the second heating chamber with the second heating area of ​​the heating plate; An outer cylinder is arranged around the inner cylinder and forms the first heating chamber together with the first heating area of ​​the heating plate; The end of the inner cylinder close to the heating plate is provided with a bottom plate, the end of the inner cylinder away from the heating plate is an open structure, and the bottom plate and the second heating area of ​​the heating plate form the steam heating section; Wherein, the steam outlet channel is arranged on the bottom plate.

8. The steam generating device according to claim 7, characterized in that: Also includes: A sealing ring is arranged at the connection between the heating plate and the outer cylinder to seal the gap between the heating plate and the outer cylinder.

9. The steam generating device according to claim 7, characterized in that: The outer cylinder comprises an inner layer enclosure and an outer layer enclosure, the inner layer enclosure and the outer layer enclosure form an opening at one end close to the heating plate, and the inner cylinder is installed in the space enclosed by the inner layer enclosure; Wherein, the inner tube and the inner layer enclosure form the steam input section.

10. The steam generating device according to claim 9, characterized in that: The cover body also includes: A separator is arranged at one end of the inner cylinder close to the heating plate and located between the inner cylinder and the inner enclosure; The inner cylinder further comprises a first flange, which is arranged at an end of the inner cylinder away from the heating plate, the steam input section is surrounded by the inner cylinder, the first flange, the partition, and the inner layer enclosure, and the steam heating section is surrounded by the inner layer enclosure, the partition, the bottom plate, and the second heating area of ​​the heating plate; The partition is provided with a second communication channel for communicating the steam heating section with the steam input section.

11. The steam generating device according to claim 10, characterized in that: The outer cylinder is provided with a first support platform, and the inner cylinder is mounted on the first support platform by overlapping the first flange; The outer cylinder is provided with a positioning boss to define the installation position of the first flange.

12. The steam generating device according to claim 10, characterized in that: A slot is formed between the partition and the outer cylinder, the steam generating device comprises a sealing ring, the sealing ring comprises a first sealing portion, and the first sealing portion is limitedly installed in the slot; The sealing ring further comprises a second sealing portion, which is connected to the first sealing portion and abuts against the heating plate to seal the gap between the outer cylinder and the heating plate; The sealing ring further includes a reinforcing rib, and the reinforcing rib is used to fit with an end surface of the outer tube close to the heating plate, and the first sealing portion, the second sealing portion and the reinforcing rib are connected to each other.

13. The steam generating device according to claim 7, characterized in that: The heating plate also includes: A convex rib is arranged on the heating plate and extends into the outer tube, wherein the convex rib and a side of the outer tube close to the second heating zone form a steam input section; A first communication channel is formed between the convex rib and the bottom of the outer cylinder, or the convex rib is provided with the first communication channel, and the first communication channel is used to connect the steam input section and the first heating chamber.

14. The steam generating device according to claim 7, characterized in that: The bottom plate is provided with a groove opening toward the heating plate, and the second heating area of ​​the heating plate is bent toward the cover body to form a first protrusion, which extends into the groove and forms the steam heating section with the bottom wall and side walls of the groove.

15. The steam generating device according to claim 7, characterized in that: The outer cylinder and the inner cylinder are of an integrated structure; and / or The wall thickness of the outer cylinder and the inner cylinder is consistent.

16. The steam generating device according to any one of claims 1 to 15, characterized in that: Also includes: The steam outlet chamber is connected with the second heating chamber through the steam outlet channel, and the steam in the steam outlet chamber is discharged along the thickness direction of the heating disk to a side away from the heating disk.

17. The steam generating device according to any one of claims 1 to 15, characterized in that: A second supporting platform is arranged on the outer side wall of the cover body.

18. The steam generating device according to any one of claims 1 to 15, characterized in that: The cover body is detachably mounted on one side of the heating plate.

19. The steam generating device according to any one of claims 1 to 15, characterized in that: The heating plate comprises: A disk body, on which the first heating area and the second heating area are arranged; A first heating element, arranged corresponding to the first heating area; The second heating element is arranged corresponding to the second heating area.

20. The steam generating device according to claim 19, characterized in that: The first heating element and the second heating element are arranged on a side of the disk body away from the cover body; and / or A heat dissipation boss and / or heat dissipation ribs are arranged on one side of the disk body close to the cover body.

21. A cooking utensil, characterized in that: Comprising the steam generating device according to any one of claims 1 to 20.

22. The cooking appliance according to claim 21, characterized in that Also includes: a base assembly, the steam generating device being mounted on the base assembly; The pot body is mounted on the base assembly, the steam generating device is located between the base assembly and the pot body, and the pot body is provided with a steam inlet channel connected with the steam outlet channel.

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