Heating assembly, base assembly and cooking equipment

Abstract

The utility model provides a heating assembly, a base assembly and cooking equipment, the heating assembly is used for the cooking equipment, the cooking equipment is provided with a cooking cavity, and the heating assembly is used for heating water in the cooking equipment so as to provide steam into the cooking cavity. The heating assembly comprises a heater, a first heating piece and a second heating piece, and the heater comprises a heat insulation part. The heat insulation part is located between the first heating piece and the second heating piece, when the heating assembly operates, the second heating piece can heat water in the cooking equipment to generate steam, and the first heating piece is in a dry burning state so that the first heating piece can heat the steam. The steam is generated after the water is heated by the second heating piece, the steam can be heated by the first heating piece, the temperature of the steam can reach 100 DEG C or above, and the cooking time of food materials is shortened.

Description

Technical Field

[0001] This utility model relates to the field of cooking equipment technology, and more specifically, to a heating component, a base component, and a cooking device. Background Technology

[0002] When cooking, the steam temperature inside an electric steamer can usually only reach a maximum of 100℃. When cooking meat or grains, the cooking time is relatively long, and the longer the cooking time, the more nutrients are lost. Utility Model Content

[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, in a first aspect, the present invention proposes a heating assembly for use in a cooking device having a cooking cavity. The heating assembly is used to heat water within the cooking device to provide steam into the cooking cavity. The heating assembly includes: a heater, the heater including a heat insulation portion; a first heating element connected to the heater; and a second heating element connected to the heater. The heat insulation portion is located between the first and second heating elements. When the heating assembly is in operation, the second heating element can heat the water within the cooking device to generate steam, while the first heating element is in a dry-burning state to heat the steam.

[0005] During operation of the heating components, the first heating element is in a dry-burning state, meaning it does not heat water. The second heating element heats the water, producing steam. This steam flows to the corresponding area of ​​the first heating element, which then heats it, effectively increasing its temperature. Through this method, the steam discharged into the cooking chamber can reach temperatures above 100°C, shortening cooking time, accelerating cooking efficiency, and preventing nutrient loss.

[0006] The heat insulation part is located between the first heating element and the second heating element. Therefore, after the heat from the first heating element and the second heating element is transferred to the heater, the heat from the first heating element is not easily transferred to the area where the second heating element is located through the heat insulation part, and the heat from the second heating element is not easily transferred to the area where the first heating element is located through the heat insulation part. This allows most of the heat from the second heating element to be used to heat water, ensuring the efficiency of steam generation, and most of the heat from the first heating element to be used to heat steam, ensuring the heating effect of steam.

[0007] In addition, the heating component in the above-described technical solution provided by this utility model may also have the following additional technical features:

[0008] In some technical solutions, the heater may optionally include a heat-conducting part connected to a heat-insulating part, with a first heating element and a second heating element disposed on the heat-conducting part, and the heat conductivity of the heat-conducting part being greater than that of the heat-insulating part.

[0009] The heat from the first heating element and the second heating element radiates outward through the heat-conducting part. The heat conductivity of the heat-conducting part is greater than that of the heat insulation part, making it difficult for the heat on the heat-conducting part to be transferred to the heat insulation part, thereby allowing the heat to diffuse outward effectively.

[0010] The heat-conducting part has high thermal conductivity, which is beneficial to improving the efficiency of heat conduction from the first heating element and the second heating element.

[0011] In some technical solutions, optionally, the thickness of the insulation part is greater than or equal to 0.5 mm and less than or equal to 2 mm.

[0012] The heat insulation portion between the first heating element and the second heating element has a relatively thin thickness, which is greater than or equal to 0.5 mm and less than or equal to 2 mm. By reducing the thickness of the heat insulation portion, it is beneficial to reduce the heat transfer effect between the first heating element and the second heating element.

[0013] In some technical solutions, the heat insulation part may optionally include at least one of heat insulation groove, heat insulation hole and heat insulation cavity.

[0014] By creating grooves, openings, or insulation cavities in the insulation section, the thermal conductivity of the insulation section can be reduced, which helps to reduce the heat transfer effect between the first heating element and the second heating element.

[0015] In some technical solutions, the heating assembly may optionally include a heat-conducting element located between the first heating element and the heater, and between the second heating element and the heater, wherein the first heating element and the second heating element transfer heat to the heater through the heat-conducting element.

[0016] The heat-conducting component has strong thermal conductivity. When the heat-conducting component is placed between the first heating element and the heater, most of the heat from the first heating element is transferred to the heater through the heat-conducting component, and then transferred outward through the heater. The heat from the first heating element is not easily transferred from inside the heater to the vicinity of the second heating element.

[0017] Similarly, when a heat-conducting element is provided between the second heating element and the heater, most of the heat from the second heating element is transferred to the heater through the heat-conducting element, and then transferred outward through the heater. The heat from the second heating element is not easily transferred from inside the heater to the vicinity of the first heating element.

[0018] In some technical solutions, optionally, the heater includes a first heating cover and a second heating cover, the first heating cover is disposed on top of the second heating cover, the first heating element is located inside the first heating cover, and the second heating element is located inside the second heating cover.

[0019] The first heating element is positioned on top of the second heating element, thus the first heating element is higher than the second heating element. The first heating element is located inside the first heating element, and the second heating element is located inside the second heating element, thus the first heating element is higher than the second heating element. Placing the first and second heating elements within different heating elements, and ensuring they are not on the same horizontal plane, reduces the heat transfer effect between the first and second heating elements.

[0020] In some technical solutions, the heating assembly may optionally include a separator located inside the heater, the separator being used to separate the internal space of the first heating shroud from the internal space of the second heating shroud.

[0021] A separator is installed inside the heater, which separates the inner cavities of the first heating cover and the second heating cover. The gas inside the first heating cover and the second heating cover will not flow to each other, thereby restricting the heat exchange between the gas inside the first heating cover and the second heating cover, and further reducing the heat transfer effect between the first heating element and the second heating element.

[0022] In some technical solutions, the separator and the heat-conducting component can optionally be integrated into one structure.

[0023] A portion of the heat-conducting component between the second heating element and the heater can be extended, so that the extended heat-conducting component is separated between the first heating cover and the second heating cover. By using the heat-conducting component as a separator, it is not necessary to set up a separate separator, which can reduce the number of components in the heating assembly and simplify the structure of the heating assembly.

[0024] In some technical solutions, optionally, the second heating element is staggered from the first heating cover along the first direction, and the first direction is perpendicular to the horizontal direction.

[0025] In a direction perpendicular to the horizontal plane, the second heating element is staggered from the first heating cover, so that most of the heat from the second heating element is transferred to the second heating cover through the heat-conducting element, and the second heating element can heat the water efficiently.

[0026] The second heating element is staggered from the first heating cover, making it difficult for the second heating element to heat the first heating cover. This prevents the heat from the second heating element from heating the first heating cover, avoids heat loss from the second heating element, and ensures that the heat from the second heating element can be concentrated to heat the water.

[0027] In some technical solutions, optionally, the side of the first heating cover is provided with a rib, and a receiving portion is formed between the top of the second heating cover and the rib, the receiving portion being used to receive the sealing element.

[0028] Since the first heating element is in a dry-burning state, a spacer is needed inside the cooking device to separate the areas on the heater corresponding to the first and second heating elements, in order to prevent water from entering above the first heating element.

[0029] A raised rib is provided on the side of the first heating cover. The raised rib protrudes from the side of the first heating cover and forms a receiving part between the raised rib and the top of the second heating cover. The sealing member can be accommodated in the receiving part. When the spacer is attached to the side of the first heating cover, the first heating cover and the spacer can be sealed by the sealing member to ensure the sealing effect between the spacer and the first heating cover and prevent water from entering the top of the first heating member.

[0030] In some technical solutions, optionally, the top of the first heating cover and the top of the second heating cover have a height difference H, where H satisfies: 60mm ≥ H ≥ 5mm.

[0031] In some technical solutions, the heat-conducting component optionally includes: a first heat-conducting part located between the first heating element and the heater; and a second heat-conducting part located between the second heating element and the heater, with the first heat-conducting part and the second heat-conducting part being spaced apart.

[0032] The heat from the first heating element is transferred to the heater through the first heat-conducting part, and the heat from the second heating element is transferred to the heater through the second heat-conducting part. The first heat-conducting part and the second heat-conducting part are arranged alternately, that is, there is no contact between the first heat-conducting part and the second heat-conducting part, so as to avoid heat transfer between the first heat-conducting part and the second heat-conducting part and reduce the heat transfer effect between the first heating element and the second heating element.

[0033] In some technical solutions, optionally, the width W1 of the first heating cover is greater than or equal to 40 mm; and / or the width difference between the top of the first heating cover and the top of the second heating cover is W2, where W2 is greater than or equal to 10 mm.

[0034] The width of the first heating cover is not less than 40mm, so that the first heating cover has sufficient area to heat the steam and ensure the heating effect of the steam.

[0035] In one possible application, the top surface of the first heating shroud is circular with a diameter of not less than 40 mm.

[0036] The difference in width between the top of the first heating cover and the top of the second heating cover is greater than or equal to 10 mm, ensuring that the second heating cover has sufficient surface area to heat the water.

[0037] For example, the solid structure of the second heating cover is distributed circumferentially along the first heating cover, and the top of the solid structure of the second heating cover is a ring structure.

[0038] In some technical solutions, optionally, the heater includes an inner ring and an outer ring, a first heating channel is provided between the inner ring and the outer ring, a second heating channel is provided in the inner ring, the second heating channel is connected to the cooking cavity, the first heating element and the second heating element are used to heat the inner ring and the outer ring, and the steam generated by the heater heating water flows to the cooking cavity in sequence through the first heating channel and the second heating channel.

[0039] In some technical solutions, the heater may optionally include: a bottom wall, an inner ring and an outer ring connected by the bottom wall, the inner ring protruding from the bottom wall by a height of H1, the outer ring protruding from the bottom wall by a height of H2, H1≥10mm, H2≥10mm.

[0040] In some technical solutions, the bottom wall may optionally include a heat insulation part, and the minimum thickness of the bottom wall is L, where 1mm≤L≤2mm.

[0041] In some technical solutions, optionally, the minimum horizontal distance between the first heating element and the second heating element is H3, where 6mm≤H3≤30mm.

[0042] In some technical solutions, optionally, both the first heating element and the second heating element are annular.

[0043] Both the first and second heating elements are annular structures, allowing the first heating element to uniformly heat the first heating shroud, thereby uniformly heating the steam above the heater. The second heating element can uniformly heat the second heating shroud, thereby uniformly heating the water.

[0044] Secondly, this utility model proposes a base assembly for use in cooking equipment. The base assembly includes: a water tank; and a heating component as described in the first aspect, located inside the water tank, which heats the water in the water tank to provide steam to the cooking cavity.

[0045] During operation of the heating components, the first heating element is in a dry-burning state, meaning it does not heat water. The second heating element heats the water, producing steam. This steam flows to the corresponding area of ​​the first heating element, which then heats it, effectively increasing its temperature. Through this method, the steam discharged into the cooking chamber can reach temperatures above 100°C, shortening cooking time, accelerating cooking efficiency, and preventing nutrient loss.

[0046] The heat insulation part is located between the first heating element and the second heating element. Therefore, after the heat from the first heating element and the second heating element is transferred to the heater, the heat from the first heating element is not easily transferred to the area where the second heating element is located through the heat insulation part, and the heat from the second heating element is not easily transferred to the area where the first heating element is located through the heat insulation part. This allows most of the heat from the second heating element to be used to heat water, ensuring the efficiency of steam generation, and most of the heat from the first heating element to be used to heat steam, ensuring the heating effect of steam.

[0047] In some technical solutions, optionally, when the heater includes a first heating cover and a second heating cover, the first heating cover is disposed on top of the second heating cover, the first heating element is located inside the first heating cover, and the second heating element is located inside the second heating cover; the base assembly further includes: a water-proof assembly located inside the water tank, through which steam generated in the water tank flows to the cooking cavity; the water-proof assembly is placed on the heater, the first heating cover is located inside the water-proof assembly, and at least a portion of the second heating cover is located outside the water-proof assembly.

[0048] The water-proof component is installed inside the water tank. The first heating cover is located inside the water-proof component, and the second heating cover is located outside the water-proof component. There is water on the outside of the water-proof component, and the water-proof component blocks the water, so that there is no water on the inside of the water-proof component, and steam can flow into the inside of the water-proof component.

[0049] During operation of the heating components, the first heating element is in a dry-burning state, meaning there is no water above it. The second heating element heats the water in the tank, generating steam. This steam flows into the water-insulating assembly, where the first heating element heats it, effectively increasing its temperature. The heated steam then exits the water-insulating assembly and flows into the cooking chamber. This process ensures that the steam entering the cooking chamber reaches temperatures above 100°C, shortening cooking time, increasing efficiency, and preventing nutrient loss.

[0050] After the heat from the first heating element and the second heating element is transferred to the heater, the heat from the first heating element is not easily transferred to the area where the second heating element is located through the heater, and the heat from the second heating element is not easily transferred to the area where the first heating element is located through the heater. This allows most of the heat from the second heating element to be used to heat the water in the water tank, ensuring the efficiency of steam generation. Most of the heat from the first heating element can be used to heat the steam in the water-proof assembly, ensuring the heating effect of reheating the steam.

[0051] In some technical solutions, optionally, the water-proof assembly includes: a water-proof cover, a first heating cover located inside the water-proof cover, and at least a portion of a second heating cover located outside the water-proof cover; a heat-conducting cylinder connected to the water-proof cover, the heat-conducting cylinder located inside the water-proof cover, the water-proof cover or the heat-conducting cylinder having an air inlet hole, through which steam in the water tank flows into the space between the water-proof cover and the heat-conducting cylinder, the heat-conducting cylinder having an air outlet hole, through which steam flows into the heat-conducting cylinder, and the heat-conducting cylinder being connected to the cooking cavity.

[0052] The water-proof cover is placed between the first heating cover and the second heating cover. The water-proof cover separates the water in the water tank and prevents water from entering the interior of the water-proof cover, ensuring that the heat of the first heating element is used to heat steam, rather than to heat water.

[0053] A heat-conducting cylinder is installed inside the water-proof cover. Steam generated in the water tank enters the space between the water-proof cover and the heat-conducting cylinder through the air inlet. The heat-conducting cylinder is equipped with an air vent. Steam between the water-proof cover and the heat-conducting cylinder enters the interior of the heat-conducting cylinder through the air vent. After the steam in the heat-conducting cylinder is discharged, it flows into the cooking cavity.

[0054] By installing a heat-conducting cylinder inside the water-proof enclosure, the steam flowing into the enclosure does not flow directly into the cooking chamber. Instead, it first flows into the heat-conducting cylinder, extending the steam's flow time within the water-proof assembly. The longer the steam flows within the water-proof assembly, the longer it is reheated, effectively increasing its temperature. Through this method, the steam discharged into the cooking chamber can reach temperatures above 100°C, shortening cooking time and accelerating cooking efficiency.

[0055] In some technical solutions, optionally, the distance between the air inlet and the top of the water-proof cover is smaller than the distance between the air inlet and the bottom of the water-proof cover; and / or the distance between the air outlet and the top of the heat-conducting cylinder is greater than the distance between the air outlet and the bottom of the heat-conducting cylinder.

[0056] The small distance between the water inlet and the top of the water-proof cover ensures that the water inlet is close to the top of the water-proof cover, preventing the water in the tank from exceeding the height of the water inlet and preventing water from entering the water-proof cover.

[0057] In one possible application, the water inlet is higher than the maximum liquid level line of the water tank. When the liquid level in the water tank is at the maximum liquid level line, the water in the water tank will not enter the water-proof cover.

[0058] The small distance between the vent hole and the bottom of the heat-conducting cylinder, which makes the vent hole close to the bottom of the heat-conducting cylinder, the water inlet hole at a higher height, and the vent hole at a lower height, helps to extend the flow path of steam in the water-proof component, thereby extending the heating time of the steam by the first heating element.

[0059] In some technical solutions, the air inlet may optionally be located at the top of the water-proof cover or the heat-conducting cylinder; and / or the air outlet may be located at the bottom of the heat-conducting cylinder.

[0060] The air inlet is located at the top of the water-proof cover or heat-conducting cylinder to further reduce the probability of water entering the interior of the water-proof cover through the air inlet. In this solution, the air inlet is located at the top of the heat-conducting cylinder; in other solutions, it can also be located at the top of the water-proof cover.

[0061] The vent is located at the bottom of the heat-conducting cylinder, which extends the flow path of steam in the water-proof assembly. Moreover, when the steam flows to the bottom of the heat-conducting cylinder, the steam comes into contact with the surface of the first heating cover, which helps to improve the heating effect of the first heating cover on the steam and increases the temperature of the steam.

[0062] In some technical solutions, optionally, a portion of the bottom of the heat-conducting cylinder is in contact with the heater, and another portion of the bottom of the heat-conducting cylinder is provided with an air passage.

[0063] A portion of the bottom of the heat-conducting cylinder is attached to the heater, allowing the first heating cover to directly exchange heat with the heat-conducting cylinder. That is, the first heating cover can directly heat the heat-conducting cylinder, increasing its temperature. As steam flows into the heat-conducting cylinder, the heat-conducting cylinder can reheat the steam, further increasing its temperature.

[0064] The bottom of another part of the heat-conducting cylinder is not in contact with the heater, and an air vent is provided on the bottom of this part.

[0065] In some technical solutions, optionally, the side of the first heating cover is provided with a rib, and a receiving portion is provided between the rib and the top of the second heating cover; the base assembly further includes: a seal, disposed in the receiving portion, the seal being located between the heater and the water-proof cover.

[0066] Since the first heating element is in a dry-burning state, a sealing element is needed to separate the first heating cover and the second heating cover to prevent water from entering the top of the first heating cover.

[0067] A raised rib is provided on the side of the first heating cover. The raised rib protrudes from the side of the first heating cover and forms a receiving part between the raised rib and the top of the second heating cover. The sealing element can be accommodated in the receiving part. When the water-proof cover is attached to the side of the first heating cover, the heater and the water-proof cover can be sealed by the sealing element to ensure the sealing effect between the water-proof cover and the heater and prevent water from entering the top of the first heating cover.

[0068] The receiving part serves to contain and limit the seal, preventing the seal from falling out of its installation position.

[0069] In some technical solutions, the base assembly may optionally include: an energy-concentrating component located inside the water tank, which divides the water tank into a water replenishment chamber and a heating chamber, which are connected to each other; a heating component and a water-proof component located inside the heating chamber, which are connected to the interior of the water-proof component.

[0070] The energy-concentrating component divides the internal space of the water tank into a water replenishment chamber and a heating chamber. The water replenishment chamber is located on the outside of the energy-concentrating component, and the heating chamber is located on the inside. A second heating element heats the water in the heating chamber. An opening in the energy-concentrating component allows water from the water replenishment chamber to flow into the heating chamber when the water level in the heating chamber decreases, according to the principle of communicating vessels.

[0071] By dividing a section of the water tank into a concentrating component, the second heating element can quickly heat the water in the heating chamber, which helps to increase the steam generation rate.

[0072] In some technical solutions, optionally, a sealing arrangement is provided between the energy-concentrating component and the water-proof assembly to restrict the direct flow of steam from the heating chamber to the cooking chamber.

[0073] The energy-concentrating component and the water-proof component are sealed together so that the steam generated in the heating chamber can only flow into the water-proof component, and the steam flows into the cooking chamber through the inside of the water-proof component.

[0074] If steam flows into the cooking chamber from between the energy-concentrating component and the water-insulating component, the first heating element does not heat the steam, resulting in a low steam temperature and affecting the heating effect on the food. This solution uses a sealed configuration between the energy-concentrating component and the water-insulating component to ensure that the steam flowing into the cooking chamber is heated by the first heating element, thereby improving the heating effect on the food.

[0075] In some technical solutions, the energy-concentrating component optionally includes: an energy-concentrating ring located inside the water tank; and an annular baffle rib disposed on the energy-concentrating ring, the annular baffle rib being in contact with the water-proof component.

[0076] An annular baffle is provided on the energy-concentrating ring. The annular baffle is attached to the outer surface of the water-proof component. The annular baffle blocks the steam, making it difficult for the steam to pass through the annular baffle, so that the steam flows into the water-proof component through the water inlet.

[0077] It should be noted that the air inlet is located inside the annular baffle; that is, the position of the annular baffle must ensure that steam can flow into the air inlet.

[0078] In some technical solutions, the energy-concentrating component may optionally include: an air outlet connected to the energy-concentrating ring, the air outlet being located above the water-insulating assembly, and an air outlet hole being provided on the air outlet along the circumference of the air outlet, through which the steam in the water-insulating assembly flows to the cooking cavity.

[0079] A steam vent is provided above the water-insulating component, and steam holes are provided around the circumference of the steam vent. Steam inside the water-insulating component flows to the periphery of the steam vent through the steam holes. This method helps to improve the uniformity of steam distribution in the cooking cavity, ensures uniform heating of the food, and avoids the situation where different parts of the food are cooked at different times.

[0080] In some technical solutions, optionally, when the heater includes an inner ring and an outer ring, a first heating channel is provided between the inner ring and the outer ring, and a second heating channel is provided in the inner ring, the second heating channel being connected to the cooking cavity. The first heating element and the second heating element are used to heat the inner ring and the outer ring. The base assembly also includes: a drip tray, placed on top of the inner ring and the outer ring, the drip tray covering the top of the first heating channel and the second heating channel, so that the steam generated by the heater heating water flows sequentially through the first heating channel and the second heating channel to the cooking cavity. The drip tray is provided with a steam port, and the steam in the second heating channel flows to the cooking cavity through the steam port.

[0081] In some technical solutions, the base assembly may optionally include a steam cylinder connected to the drip tray, a portion of which extends into the second heating channel, through which steam flows to the steam outlet.

[0082] Thirdly, this utility model proposes a cooking device, including a base assembly as described in the second aspect.

[0083] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description

[0084] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0085] Figure 1 A schematic diagram of the heating assembly in an embodiment of this utility model is shown;

[0086] Figure 2 A schematic diagram of the base assembly in an embodiment of this utility model is shown;

[0087] Figure 3 A schematic diagram of the structure of the cooking device in an embodiment of this utility model is shown;

[0088] Figure 4 A schematic diagram of the heat-conducting cylinder in an embodiment of this utility model is shown;

[0089] Figure 5 A schematic diagram of the energy-concentrating component in an embodiment of this utility model is shown;

[0090] Figure 6 A schematic diagram of the heater in an embodiment of this utility model is shown;

[0091] Figure 7 A schematic diagram of the heater in an embodiment of this utility model is shown;

[0092] Figure 8 A schematic diagram of the heater in an embodiment of this utility model is shown;

[0093] Figure 9 A schematic diagram of the base assembly in an embodiment of this utility model is shown;

[0094] Figure 10 A schematic diagram of the heater in an embodiment of this utility model is shown;

[0095] Figure 11 A schematic diagram of the heater in an embodiment of this utility model is shown.

[0096] Figure label:

[0097] 100 Heating assembly, 110 Heater, 113 First heating cover, 114 Second heating cover, 115 Heat insulation part, 1151 Heat insulation groove, 1152 Heat insulation hole, 1153 Heat insulation cavity, 116 Heat conducting part, 120 First heating element, 130 Second heating element, 140 Heat conducting element, 141 First heat conducting part, 142 Second heat conducting part, 150 Separator, 160 Rib, 170 Receiving part, 200 Base assembly, 210 Base, 220 Water tank, 221 Water replenishment cavity 222 Heating chamber, 230 Water-proof assembly, 231 Water-proof cover, 232 Heat-conducting cylinder, 233 Air inlet, 234 Air outlet, 240 Sealing element, 250 Energy-concentrating component, 251 Energy-concentrating ring, 252 Annular baffle, 253 Air outlet, 254 Air outlet, 300 Housing, 310 Cooking chamber, 410 Inner ring, 420 Outer ring, 430 First heating channel, 440 Second heating channel, 450 Bottom wall, 460 Juice receiving tray, 461 Steam port, 470 Steam cylinder. Detailed Implementation

[0098] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0099] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0100] The following reference Figures 1 to 11 This invention describes a heating assembly, a base assembly, and a cooking device provided according to some embodiments of the present invention.

[0101] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments of this utility model, a heating assembly 100 is provided. The heating assembly 100 is used in a cooking device having a cooking cavity 310. The heating assembly 100 is used to heat water in the cooking device to provide steam into the cooking cavity 310. The heating assembly 100 includes a heater 110, a first heating element 120, and a second heating element 130. The heater 110 includes a heat insulation portion 115. Both the first heating element 120 and the second heating element 130 are connected to the heater 110. The heat insulation portion 115 is located between the first heating element 120 and the second heating element 130. When the heating assembly 100 is operating, the second heating element 130 can heat the water in the cooking device to generate steam, while the first heating element 120 is in a dry-burning state to heat the steam.

[0102] When the heating assembly 100 is operating, the first heating element 120 is in a dry-burning state, meaning that the first heating element 120 is not heating water. The second heating element 130 can heat the water, and the water, after being heated by the second heating element 130, generates steam. The steam can flow to the corresponding area of ​​the first heating element 120, and the first heating element 120 can heat the steam, thereby effectively increasing the temperature of the steam. In this way, the steam discharged into the cooking chamber 310 can reach above 100°C, shortening the cooking time of the food, accelerating the cooking efficiency, and also avoiding the loss of nutrients by shortening the cooking time.

[0103] The heat insulation part 115 is located between the first heating element 120 and the second heating element 130. Therefore, after the heat from the first heating element 120 and the second heating element 130 is transferred to the heater 110, the heat from the first heating element 120 is not easily transferred to the area where the second heating element 130 is located through the heat insulation part 115 heater, and the heat from the second heating element 130 is not easily transferred to the area where the first heating element 120 is located through the heat insulation part 115 heater. This allows most of the heat from the second heating element 130 to be used to heat water, ensuring the steam generation efficiency, and most of the heat from the first heating element 120 to be used to heat steam, ensuring the heating effect of the steam.

[0104] Combination Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, the heater 110 may optionally include a heat-conducting part 116 connected to the heat-insulating part 115, and a first heating element 120 and a second heating element 130 disposed on the heat-conducting part 116. The heat conductivity of the heat-conducting part 116 is greater than that of the heat-insulating part 115.

[0105] The heat from the first heating element 120 and the second heating element 130 radiates outward through the heat-conducting part 116. The heat conductivity of the heat-conducting part 116 is greater than that of the heat insulation part 115, making it difficult for the heat on the heat-conducting part 116 to be transferred to the heat insulation part 115, thereby allowing the heat to be effectively diffused outward.

[0106] The heat-conducting part 116 has high thermal conductivity, which is beneficial to improving the efficiency of the first heating element 120 and the second heating element 130 in conducting heat outward.

[0107] like Figure 6 As shown, in some embodiments, optionally, the thickness W of the heat insulation portion 115 is greater than or equal to 0.5 mm and less than or equal to 2 mm.

[0108] The heat insulation portion 115 between the first heating element 120 and the second heating element 130 has a relatively thin thickness. The thickness W of the heat insulation portion 115 is greater than or equal to 0.5 mm and less than or equal to 2 mm. By reducing the thickness of the heat insulation portion 115, it is beneficial to reduce the heat transfer effect between the first heating element 120 and the second heating element 130.

[0109] For example, the thickness W of the heat insulation part 115 is 0.5 mm, 1 mm or 2 mm.

[0110] Combination Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, the heat insulation portion 115 may optionally be provided with at least one of the following: heat insulation groove 1151, heat insulation hole 1152, and heat insulation cavity 1153.

[0111] By slotting, opening, or providing a heat insulation cavity 1153 on the heat insulation part 115, the thermal conductivity of the heat insulation part 115 is reduced, which helps to reduce the heat transfer effect between the first heating element 120 and the second heating element 130.

[0112] In some embodiments, the heating assembly may optionally include a heat-conducting element 140, which is located between the first heating element 120 and the heater 110 and between the second heating element 130 and the heater 110, wherein the first heating element 120 and the second heating element 130 transfer heat to the heater 110 through the heat-conducting element 140.

[0113] The heat-conducting element 140 has strong thermal conductivity. When the heat-conducting element 140 is provided between the first heating element 120 and the heater 110, most of the heat of the first heating element 120 is transferred to the heater 110 through the heat-conducting element 140, and then transferred outward through the heater 110. The heat of the first heating element 120 is not easily transferred inside the heater 110 to the vicinity of the second heating element 130.

[0114] Similarly, when a heat-conducting element 140 is provided between the second heating element 130 and the heater 110, most of the heat from the second heating element 130 is transferred to the heater 110 through the heat-conducting element 140, and then transferred outward through the heater 110. The heat from the second heating element 130 is not easily transferred inside the heater 110 to the vicinity of the first heating element 120.

[0115] Combination Figure 1 and Figure 2 As shown, in some embodiments, optionally, the heater 110 includes a first heating cover 113 and a second heating cover 114, the first heating cover 113 is disposed on top of the second heating cover 114, the first heating element 120 is located inside the first heating cover 113, and the second heating element 130 is located inside the second heating cover 114.

[0116] The first heating cover 113 is disposed on top of the second heating cover 114, therefore the first heating cover 113 is higher than the second heating cover 114. The first heating element 120 is disposed inside the first heating cover 113, and the second heating element 130 is disposed inside the second heating cover 114, therefore the first heating element 120 is higher than the second heating cover 114. By disposing the first heating element 120 and the second heating element 130 within different heating covers, and by not placing the first heating element 120 and the second heating element 130 on the same horizontal plane, the heat transfer effect between the first heating element 120 and the second heating element 130 can be reduced.

[0117] Combination Figure 1 and Figure 2 As shown, in some embodiments, the heating assembly 100 may optionally include a separator 150 located within the heater 110, the separator 150 being used to separate the internal space of the first heating cover 113 from the internal space of the second heating cover 114.

[0118] A separator 150 is installed inside the heater 110. The separator 150 separates the inner cavities of the first heating cover 113 and the second heating cover 114, preventing the gas inside the first heating cover 113 and the second heating cover 114 from flowing to each other. This restricts the heat exchange between the gas inside the first heating cover 113 and the second heating cover 114, further reducing the heat transfer effect between the first heating element 120 and the second heating element 130.

[0119] Combination Figure 1 and Figure 2 As shown, in some embodiments, the separator 150 and the heat-conducting element 140 are optionally integrated.

[0120] A portion of the heat-conducting element 140 between the second heating element 130 and the heater 110 can be extended, such that the extended heat-conducting element 140 is separated between the first heating cover 113 and the second heating cover 114. By using the heat-conducting element 140 as a separator 150, it is not necessary to set a separate separator, which can reduce the number of components in the heating assembly 100 and simplify the structure of the heating assembly 100.

[0121] Combination Figure 1 and Figure 2 As shown, in some embodiments, optionally, along the first direction ( Figure 1 (The arrow at point A points to) the second heating element 130 is offset from the first heating cover 113, and the first direction is perpendicular to the horizontal direction ( Figure 1 (The arrow at point B points to...)

[0122] In a direction perpendicular to the horizontal plane, the second heating element 130 is staggered from the first heating cover 113, so that most of the heat from the second heating element 130 is transferred to the cavity wall of the second heating cover 114 through the heat conduction element 140, so that the second heating element 130 can heat the water efficiently.

[0123] The second heating element 130 is misaligned with the first heating cover 113, making it difficult for the second heating element 130 to heat the first heating cover 113. This prevents the heat from the second heating element 130 from heating the first heating cover 113, prevents heat loss from the second heating element 130, and ensures that the heat from the second heating element 130 can be concentrated to heat the water.

[0124] Combination Figure 1 and Figure 2 As shown, in some embodiments, optionally, the side of the first heating cover 113 is provided with a rib 160, and a receiving portion 170 is formed between the top of the second heating cover 114 and the rib 160, the receiving portion 170 being used to receive the sealing member 240.

[0125] Since the first heating element 120 is in a dry-burning state, a spacer is needed in the cooking device to separate the areas of the heater 110 corresponding to the first heating element 120 and the second heating element 130, so as to prevent water from entering above the first heating element 120.

[0126] A rib 160 is provided on the side of the first heating cover 113. The rib 160 protrudes from the side of the first heating cover 113. A receiving portion 170 is formed between the rib 160 and the top of the second heating cover 114. The sealing member 240 can be received in the receiving portion 170. When the spacer is attached to the side of the first heating cover 113, the first heating cover 113 and the spacer can be sealed by the sealing member 240 to ensure the sealing effect between the spacer and the first heating cover 113 and prevent water from entering the top of the first heating element 120.

[0127] like Figure 1 As shown, in some embodiments, optionally, the top of the first heating cover 113 and the top of the second heating cover 114 have a height difference H, where H satisfies: 60mm ≥ H ≥ 5mm.

[0128] The height difference between the top of the first heating cover 113 and the top of the second heating cover 114 is sufficient to accommodate the first heating element 120, so that the first heating element 120 does not need to extend into the second heating cover 114, thus avoiding the first heating element 120 heating the inside of the second heating cover 114.

[0129] For example, H is 5mm, 20mm or 60mm.

[0130] Combination Figure 1 and Figure 2 As shown, in some embodiments, optionally, the heat-conducting element 140 includes: a first heat-conducting part 141 and a second heat-conducting part 142, the first heat-conducting part 141 being located between the first heating element 120 and the heater 110, and the second heat-conducting part 142 being located between the second heating element 130 and the heater 110, with the first heat-conducting part 141 and the second heat-conducting part 142 being spaced apart.

[0131] The heat from the first heating element 120 is transferred to the heater 110 through the first heat-conducting part 141, and the heat from the second heating element 130 is transferred to the heater 110 through the second heat-conducting part 142. The first heat-conducting part 141 and the second heat-conducting part 142 are spaced apart, that is, there is no contact between the first heat-conducting part 141 and the second heat-conducting part 142, so as to avoid heat transfer between the first heat-conducting part 141 and the second heat-conducting part 142 and reduce the heat transfer effect between the first heating element 120 and the second heating element 130.

[0132] Combination Figure 1 and Figure 2 As shown, in some embodiments, optionally, the width W1 of the first heating cover 113 is greater than or equal to 40 mm; and / or the width difference between the top of the first heating cover 113 and the top of the second heating cover 114 is W2, where W2 is greater than or equal to 10 mm.

[0133] The width of the first heating cover 113 is not less than 40mm, so that the first heating cover 113 has sufficient area to heat the steam and ensure the heating effect of the steam.

[0134] In one possible application, the top surface of the first heating cover 113 is circular and has a diameter of not less than 40 mm.

[0135] The difference in width between the top of the first heating cover 113 and the top of the second heating cover 114 is greater than or equal to 10 mm, ensuring that the second heating cover 114 has sufficient surface area to heat the water.

[0136] For example, the solid structure of the second heating cover 114 is distributed circumferentially along the first heating cover 113, and the top of the solid structure of the second heating cover 114 is an annular structure.

[0137] Combination Figure 9 , Figure 10 and Figure 11 As shown, in some embodiments, optionally, in some technical solutions, the heater 110 includes an inner ring 410 and an outer ring 420, a first heating channel 430 is provided between the inner ring 410 and the outer ring 420, a second heating channel 440 is provided in the inner ring 410, the second heating channel 440 is connected to the cooking cavity 310, the first heating element 120 and the second heating element 130 are used to heat the inner ring 410 and the outer ring 420, and the steam generated by the heater 110 heating water flows to the cooking cavity 310 in sequence through the first heating channel 430 and the second heating channel 440.

[0138] The heater 110 includes an inner ring 410 and an outer ring 420, forming a first heating channel 430 between the inner ring 410 and the outer ring 420. A second heating channel 440 is formed within the inner ring 410. The first heating channel 430 is connected to the water tank 220 in the cooking device, and the first heating channel 430 and the second heating channel 440 are also connected. When the heating element is in operation, the heater 110 heats the water tank 220. When the water in the water tank 220 is heated into steam, the steam in the water tank 220 flows into the first heating channel 430, then flows from the first heating channel 430 to the second heating channel 440, and then from the second heating channel 440 to the cooking chamber 310. The heater 110 can also heat the first heating channel 430 and the second heating channel 440, so that the steam flowing into the heater 110 can be heated, thereby heating the steam into superheated steam within the first heating channel 430 and the second heating channel 440.

[0139] By setting two sets of heating channels within the heater 110, steam can flow sequentially through the first heating channel 430 and the second heating channel 440, extending the steam's flow time within the heater 110. The longer the steam flows within the heater 110, the longer it is heated, thus effectively increasing the steam temperature. Through this method, the steam discharged into the cooking chamber 310 can reach temperatures above 100°C, shortening the cooking time and accelerating cooking efficiency. Furthermore, shortening the cooking time also prevents the loss of nutrients.

[0140] Combination Figure 9 , Figure 10 and Figure 11As shown, in some embodiments, optionally, the heater 110 further includes: a bottom wall 450, an inner ring 410 and an outer ring 420 connected through the bottom wall 450, the inner ring 410 protruding from the bottom wall 450 by a height of H1, the outer ring 420 protruding from the bottom wall 450 by a height of H2, H1≥10mm, H2≥10mm.

[0141] The bottom of the inner ring 410 and the bottom of the outer ring 420 are connected by the bottom wall 450. The outer ring 420 protrudes from the bottom wall 450 by a height greater than or equal to 10 mm, so that the outer ring 420 has sufficient surface area in the height direction to contact the water, which is beneficial to improving the heating speed of the water.

[0142] The height of the inner ring 410 protruding from the bottom wall 450 can also be set to be greater than or equal to 10mm. Based on this, the volume of the first heating channel 430 and the second heating channel 440 is relatively large. When steam flows into the first heating channel 430 and the second heating channel 440, the steam has a large contact area with the inner ring 410 and the outer ring 420, which is beneficial to improving the heating effect of the inner ring 410 and the outer ring 420 on the steam and further increasing the temperature of the steam.

[0143] For example, H1 is 10mm, 15mm or 20mm, and H2 is 10mm, 15mm or 20mm.

[0144] Combination Figure 9 , Figure 10 and Figure 11 As shown, in some embodiments, the bottom wall 450 optionally includes a heat insulation portion, and the minimum thickness of the bottom wall 450 is L, where 1mm≤L≤2mm.

[0145] The heating element can heat the inner ring 410 and the outer ring 420. The inner ring 410 can heat the first heating channel 430 and the second heating channel 440, and the outer ring 420 can heat the water in the water tank 220 and the first heating channel 430.

[0146] When the inner ring 410 and outer ring 420 are connected by a bottom wall 450, the heat used by the heating element to heat the inner ring 410 can be transferred to the outer ring 420 through the bottom wall 450. If most of the heat is transferred to the outer ring 420, the heating effect of the inner ring 410 on the steam will be reduced. Therefore, in this design, the minimum thickness L of the bottom wall 450 is limited to 1mm ≤ L ≤ 2mm. Within this range, the thickness of the bottom wall 450 is relatively thin. The thinner the bottom wall 450, the slower the heat used to heat the inner ring 410 is transferred to the outer ring 420. Therefore, when the thickness of the bottom wall 450 meets the above-mentioned range, the heat used to heat the inner ring 410 is not easily transferred to the outer ring 420. The heat used to heat the inner ring 410 can effectively heat the first heating channel 430 and the second heating channel 440, which is beneficial to increasing the steam temperature.

[0147] The bottom wall 450 can be used entirely as a heat insulation component, or a portion of the bottom wall 450 can be used as a heat insulation component. When the thickness of the bottom wall 450 is within the aforementioned range, the thickness of the heat insulation component is also within the aforementioned range.

[0148] For example, L is 1 mm, 1.5 mm or 2 mm.

[0149] The inner ring 410 and the outer ring 420 can serve as heat-conducting parts 116, and a part of the structure on the bottom wall 450 serves as heat-insulating parts 115.

[0150] In some technical solutions, optionally, the minimum horizontal distance between the first heating element 120 and the second heating element 130 is H3, where 6mm≤H3≤30mm.

[0151] The minimum distance H3 between the first heating element 120 and the second heating element 130 satisfies 6mm≤H3≤30mm, which makes it difficult for heat to be transferred between the first heating element 120 and the second heating element 130, thereby limiting the transfer of heat from the first heating element 120 to the outer ring 420 and ensuring that the heat from the first heating element 120 is mainly used to heat the inner ring 410.

[0152] For example, H3 is 6mm, 10mm or 30mm.

[0153] In some embodiments, optionally, the first heating element 120 and the second heating element 130 are circumferentially aligned with the heater 110. Figure 10 (The arrow at C2 points to) the distribution, the first heating element 120 and the second heating element 130 are ring-shaped.

[0154] Both the first heating element 120 and the second heating element 130 are annular structures, allowing the first heating element 120 to uniformly heat the first heating cover 113, thereby uniformly heating the steam above the heater 110. The second heating element 130 can uniformly heat the second heating cover 114, thereby uniformly heating the water.

[0155] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments of this utility model, a base assembly 200 is provided for a cooking device. The base assembly 200 includes a water tank 220 and a heating assembly 100 as described in any of the above embodiments. The heating assembly 100 is located inside the water tank 220 and heats the water in the water tank 220 to provide steam to the cooking chamber 310.

[0156] Figure 2 and Figure 3 The middle arrow is used to indicate the direction of steam flow.

[0157] When the heating assembly 100 is operating, the first heating element 120 is in a dry-burning state, meaning that the first heating element 120 is not heating water. The second heating element 130 can heat the water, and the water, after being heated by the second heating element 130, generates steam. The steam can flow to the corresponding area of ​​the first heating element 120, and the first heating element 120 can heat the steam, thereby effectively increasing the temperature of the steam. In this way, the steam discharged into the cooking chamber 310 can reach above 100°C, shortening the cooking time of the food, accelerating the cooking efficiency, and also avoiding the loss of nutrients by shortening the cooking time.

[0158] The heat insulation part 115 is located between the first heating element 120 and the second heating element 130. Therefore, after the heat from the first heating element 120 and the second heating element 130 is transferred to the heater 110, the heat from the first heating element 120 is not easily transferred to the area where the second heating element 130 is located through the heat insulation part 115 heater, and the heat from the second heating element 130 is not easily transferred to the area where the first heating element 120 is located through the heat insulation part 115 heater. This allows most of the heat from the second heating element 130 to be used to heat water, ensuring the steam generation efficiency, and most of the heat from the first heating element 120 to be used to heat steam, ensuring the heating effect of the steam.

[0159] In some embodiments, optionally, when the heater 110 includes a first heating cover 113 and a second heating cover 114, the first heating cover 113 is disposed on top of the second heating cover 114, the first heating element 120 is located inside the first heating cover 113, and the second heating element 130 is located inside the second heating cover 114. The base assembly 200 further includes: a water-proof assembly 230, which is located inside the water tank 220, through which steam generated in the water tank 220 flows to the cooking chamber 310; the water-proof assembly 230 is placed on the heater 110, the first heating cover 113 is located inside the water-proof assembly 230, and at least a portion of the second heating cover 114 is located outside the water-proof assembly 230.

[0160] The water-proof component 230 is installed inside the water tank 220. The first heating cover 113 is located inside the water-proof component 230, and the second heating cover 114 is located outside the water-proof component 230. There is water on the outside of the water-proof component 230. The water-proof component 230 blocks the water, so that there is no water on the inside of the water-proof component 230, and steam can flow into the inside of the water-proof component 230.

[0161] When the heating element 100 is running, the first heating element 120 is in a dry-burning state, meaning there is no water above the first heating element 120. The second heating element 130 can heat the water in the water tank 220. The water heated by the second heating element 130 generates steam, which can flow into the water-insulating assembly 230. The first heating element 120 can heat the steam in the water-insulating assembly 230, thereby effectively increasing the temperature of the steam. The heated steam is discharged from the water-insulating assembly 230 and flows into the cooking chamber 310. Through the above method, the steam discharged into the cooking chamber 310 can reach a temperature of over 100°C, shortening the cooking time of the food, accelerating the cooking efficiency, and also avoiding the loss of nutrients by shortening the cooking time.

[0162] After the heat from the first heating element 120 and the second heating element 130 is transferred to the heater 110, the heat from the first heating element 120 is not easily transferred to the area where the second heating element 130 is located through the heater 110, and the heat from the second heating element 130 is not easily transferred to the area where the first heating element 120 is located through the heater 110. This allows most of the heat from the second heating element 130 to be used to heat the water in the water tank 220, ensuring the efficiency of steam generation. Most of the heat from the first heating element 120 can be used to heat the steam in the water-proof assembly 230, ensuring the heating effect of reheating the steam.

[0163] In one possible application, the base assembly 200 also includes a base 210, within which the water tank 220 is located.

[0164] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, optionally, the water-proof assembly 230 includes: a water-proof cover 231 and a heat-conducting cylinder 232. A first heating cover 113 is located inside the water-proof cover 231, and at least a portion of a second heating cover 114 is located outside the water-proof cover 231. The heat-conducting cylinder 232 is connected to the water-proof cover 231 and is located inside the water-proof cover 231. The water-proof cover 231 or the heat-conducting cylinder 232 is provided with an air inlet 233, through which steam in the water tank 220 flows into the space between the water-proof cover 231 and the heat-conducting cylinder 232. The heat-conducting cylinder 232 is provided with an air outlet 234, through which steam flows into the heat-conducting cylinder 232. The heat-conducting cylinder 232 is connected to the cooking cavity 310.

[0165] The water-proof cover 231 is disposed between the first heating cover 113 and the second heating cover 114. The water-proof cover 231 separates the water in the water tank 220 to prevent water from entering the interior of the water-proof cover 231, ensuring that the heat of the first heating element 120 is used to heat steam instead of water.

[0166] A heat-conducting cylinder 232 is installed inside the water-proof cover 231. Steam generated in the water tank 220 enters the space between the water-proof cover 231 and the heat-conducting cylinder 232 through the air inlet 233. The heat-conducting cylinder 232 is provided with an air vent 234. Steam between the water-proof cover 231 and the heat-conducting cylinder 232 enters the interior of the heat-conducting cylinder 232 through the air vent 234. After the steam in the heat-conducting cylinder 232 is discharged, it flows to the cooking cavity 310.

[0167] By installing a heat-conducting cylinder 232 inside the water-proof cover 231, the steam flowing into the water-proof cover 231 does not flow directly to the cooking chamber 310, but first flows into the heat-conducting cylinder 232. This prolongs the flow time of the steam within the water-proof assembly 230. The longer the steam flows within the water-proof assembly, the longer the steam is reheated, thereby effectively increasing the steam temperature. Through this method, the steam discharged into the cooking chamber 310 can reach temperatures above 100°C, shortening the cooking time for the food and accelerating cooking efficiency.

[0168] Combination Figure 2 and Figure 4 As shown, in some embodiments, optionally, the distance between the air inlet 233 and the top of the water shield 231 is smaller than the distance between the air inlet 233 and the bottom of the water shield 231; and / or the distance between the air outlet 234 and the top of the heat conduction cylinder 232 is greater than the distance between the air outlet 234 and the bottom of the heat conduction cylinder 232.

[0169] The distance between the water inlet and the top of the water-proof cover 231 is small, so that the water inlet is close to the top of the water-proof cover 231, preventing the water in the water tank 220 from exceeding the height of the water inlet and preventing water from entering the water-proof cover 231.

[0170] In one possible application, the water inlet is higher than the highest liquid level line of the water tank 220. When the liquid level in the water tank 220 is at the highest liquid level line, the water in the water tank 220 will not enter the water-proof cover 231.

[0171] The small distance between the vent 234 and the bottom of the heat-conducting cylinder 232 makes the vent 234 close to the bottom of the heat-conducting cylinder 232. The height of the water inlet is relatively high, while the height of the vent 234 is relatively low. This helps to extend the flow path of steam in the water-proof component 230, thereby extending the heating time of the first heating element 120 on the steam.

[0172] Combination Figure 2 and Figure 4 As shown, in some embodiments, optionally, the air inlet 233 is located at the top of the water-proof cover 231 or the heat-conducting cylinder 232; and / or the air outlet 234 is located at the bottom of the heat-conducting cylinder 232.

[0173] The air inlet 233 is located at the top of the water-proof cover 231 or the heat-conducting cylinder 232 to further reduce the probability of water entering the interior of the water-proof cover 231 through the air inlet 233. In this solution, the air inlet 233 is located at the top of the heat-conducting cylinder 232; in other solutions, it can also be located at the top of the water-proof cover 231.

[0174] The vent 234 is located at the bottom of the heat-conducting cylinder 232, which extends the flow path of steam in the water-proof assembly 230. Moreover, when the steam flows to the bottom of the heat-conducting cylinder 232, the steam comes into contact with the surface of the first heating cover 113, which is beneficial to improving the heating effect of the first heating cover 113 on the steam and increasing the temperature of the steam.

[0175] like Figure 2 As shown, in some embodiments, optionally, a portion of the bottom of the heat-conducting cylinder 232 is in contact with the heater 110, and another portion of the bottom of the heat-conducting cylinder 232 is provided with an air vent 234.

[0176] A portion of the bottom of the heat-conducting cylinder 232 is attached to the heater 110, so that the first heating cover 113 can directly exchange heat with the heat-conducting cylinder 232. That is, the first heating cover 113 can directly heat the heat-conducting cylinder 232 and increase its temperature. When steam flows into the heat-conducting cylinder 232, the heat-conducting cylinder 232 can reheat the steam and further increase its temperature.

[0177] The bottom of another part of the heat-conducting cylinder 232 is not in contact with the heater 110, and an air vent 234 is provided on the bottom of this part.

[0178] This embodiment provides a novel heating assembly 100 with a double-layer structure. The lower and upper layers are respectively equipped with a first heating element 120 and a second heating element 130. A water-proof cover 231 is arranged around the periphery of the upper layer of the heating assembly 100, and a heat-conducting cylinder 232 is positioned above the upper layer. The bottom of the heat-conducting cylinder 232 directly contacts the top of the upper layer of the heating assembly 100, allowing the lower layer of the heating assembly 100 to heat water and generate steam, while the upper layer heats the heat-conducting cylinder 232 and the steam, thus achieving a higher steam temperature. The implementation is simpler, and scale on the surface of the heater 110 is easier to clean. Cooking equipment with this heating assembly 100 achieves a steam temperature exceeding 100°C within the cooking chamber 310, enabling faster cooking of food.

[0179] The heating component 100 has a double-layer structure, with the upper layer protruding from the center of the lower layer by a height of not less than 5mm. The lower and upper layers are respectively provided with a first heating element 120 and a second heating element 130. The first heating element 120 and the second heating element 130 are not on the same plane in the height direction, with the first heating element 120 being higher than the second heating element 130, and heat is transferred between the two heating elements through a heater 110.

[0180] Combination Figure 1 and Figure 2 As shown, in some embodiments, optionally, the side of the first heating cover 113 is provided with a rib 160, and a receiving portion 170 is provided between the rib 160 and the top of the second heating cover 114. The base assembly 200 also includes a seal 240, which is disposed in the receiving portion 170 and located between the heater 110 and the water-proof cover 231.

[0181] Since the first heating element 120 is in a dry-burning state, a sealing element 240 is needed to separate the first heating cover 113 and the second heating cover 114 to prevent water from entering the top of the first heating cover 113.

[0182] A rib 160 is provided on the side of the first heating cover 113. The rib 160 protrudes from the side of the first heating cover 113. A receiving portion 170 is formed between the rib 160 and the top of the second heating cover 114. The sealing member 240 can be accommodated in the receiving portion 170. When the water-proof cover 231 is attached to the side of the first heating cover 113, the heater 110 and the water-proof cover 231 can be sealed by the sealing member 240 to ensure the sealing effect between the water-proof cover 231 and the heater 110 and prevent water from entering the top of the first heating cover 113.

[0183] The receiving part 170 serves to receive and limit the seal 240, preventing the seal 240 from falling out of the installation position.

[0184] Combination Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, optionally, the base assembly 200 further includes: an energy-concentrating component 250, which is located inside the water tank 220 and divides the water tank 220 into a water replenishment chamber 221 and a heating chamber 222, which are connected. The heating component 100 and the water-proof component 230 are located inside the heating chamber 222, and the heating chamber 222 is connected to the interior of the water-proof component 230.

[0185] The energy-concentrating component 250 divides the space inside the water tank 220, creating a water replenishment chamber 221 and a heating chamber 222. The water replenishment chamber 221 is located on the outside of the energy-concentrating component 250, and the heating chamber 222 is located on the inside. The second heating element 130 heats the water in the heating chamber 222. An opening is provided in the energy-concentrating component 250, allowing water from the water replenishment chamber 221 to flow into the heating chamber 222 when the water level in the heating chamber 222 decreases, according to the principle of communicating vessels.

[0186] By dividing a portion of the water tank 220 by the energy-concentrating component 250, the second heating element 130 can quickly heat the water in the heating chamber 222, which is beneficial to increasing the steam generation rate.

[0187] Combination Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, optionally, the energy-concentrating component 250 and the water-proof assembly 230 are sealed together to restrict steam in the heating chamber 222 from flowing directly into the cooking chamber 310.

[0188] The energy-concentrating component 250 and the water-insulating component 230 are sealed together so that the steam generated in the heating chamber 222 can only flow into the water-insulating component 230, and the steam flows through the inside of the water-insulating component 230 to the cooking chamber 310.

[0189] If steam flows into the cooking chamber 310 between the energy-concentrating component 250 and the water-insulating component 230, the first heating element 120 does not heat the steam, resulting in a low steam temperature and affecting the heating effect on the food. In this solution, by sealing the space between the energy-concentrating component 250 and the water-insulating component 230, it is ensured that the steam flowing into the cooking chamber 310 is heated by the first heating element 120, thereby improving the heating effect on the food.

[0190] Combination Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, optionally, the energy-concentrating component 250 includes: an energy-concentrating ring 251 and an annular baffle 252, the energy-concentrating ring 251 being located inside the water tank 220, the annular baffle 252 being disposed on the energy-concentrating ring 251, and the annular baffle 252 being in contact with the water-proof component 230.

[0191] An annular baffle 252 is provided on the energy-concentrating ring 251. The annular baffle 252 is attached to the outer surface of the water-proof component 230. The annular baffle 252 blocks the steam, making it difficult for the steam to pass through the annular baffle 252, so that the steam flows into the water-proof component 230 through the water inlet.

[0192] It should be noted that the air inlet 233 is located inside the annular baffle 252. That is, the position of the annular baffle 252 needs to ensure that steam can flow into the air inlet 233.

[0193] Combination Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, optionally, the energy-concentrating component 250 further includes: an air outlet 253, which is connected to the energy-concentrating ring 251, and is located above the water-proof assembly 230, along the circumference of the air outlet 253. Figure 5(The arrow at C1 points to) The vent 253 is provided with a vent 254, and the steam in the water-proof assembly 230 flows to the cooking cavity 310 through the vent 253.

[0194] A steam vent 253 is provided above the water-insulating component 230, and a steam vent 254 is provided around the steam vent 253. The steam in the water-insulating component 230 flows to the periphery of the steam vent 253 through the steam vent 254. In this way, it is beneficial to improve the uniformity of steam distribution in the cooking cavity 310, ensure the uniform heating of the food, and avoid the occurrence of different cooking times in different parts of the food.

[0195] For example, the cooking device is an electric steamer. The electric steamer with the heating component 100 described above has a water-proof cover 231 arranged around the upper periphery of the heating component to prevent water in the water tank 220 from entering the upper layer of the heating component 100. A heat-conducting cylinder 232 is arranged above the upper layer of the heating component 100. The bottom of the heat-conducting cylinder 232 is in direct contact with the top of the upper layer of the heating component 100 so that the heating component 100 can directly heat the heat-conducting cylinder 232. The heat-conducting cylinder 232 is also provided with an air inlet 233 and an air outlet 234. The air inlet 233 is located at the top of the heat-conducting cylinder 232, and the air outlet 234 is located at the shoulder between the top and bottom of the heat-conducting cylinder 232.

[0196] The water-proof cover 231 is connected and sealed to the top outer periphery of the heat-conducting cylinder 232. The lower surface of the heating component 100 heats water to generate steam. The steam enters the space between the water-proof cover 231 and the heat-conducting cylinder 232 through the air inlet 233, then enters the interior of the heat-conducting cylinder 232 through the air hole 234, and then enters the cooking chamber 310 through the air outlet 254 of the energy-concentrating component 250. During this process, the steam is reheated by the upper surface of the heating component 100 and the surface of the heat-conducting cylinder 232, and can reach a temperature of over 100°C.

[0197] An annular baffle 252 is provided above the vent 254 of the energy-concentrating component 250 and the vent 233 of the heat-conducting cylinder 232, separating them by an energy-concentrating ring 251. This prevents steam from bypassing the vent 233 and vent 234 of the heat-conducting cylinder 232 and directly entering the cooking cavity 310 from the vent 254 of the energy-concentrating component 250. Alternatively, a separate sealing component can be provided between the vent 254 of the energy-concentrating component 250 and the vent 233 of the heat-conducting cylinder 232 to achieve the same function.

[0198] Combination Figure 9 , Figure 10 and Figure 11As shown, in some embodiments, optionally, when the heater 110 includes an inner ring 410 and an outer ring 420, a first heating channel 430 is provided between the inner ring 410 and the outer ring 420, and a second heating channel 440 is provided in the inner ring 410. The second heating channel 440 is connected to the cooking cavity 310, and the first heating element 120 and the second heating element 130 are used to heat the inner ring 410 and the outer ring 420. The base assembly 200 also includes a drip tray 460, which is placed on top of the inner ring 410 and the outer ring 420. The drip tray 460 covers the top of the first heating channel 430 and the second heating channel 440, so that the steam generated by the heater 110 heating water flows sequentially through the first heating channel 430 and the second heating channel 440 to the cooking cavity 310. The drip tray 460 is provided with a steam port 461, and the steam in the second heating channel 440 flows to the cooking cavity 310 through the steam port 461.

[0199] Both the first heating channel 430 and the second heating channel 440 have openings at the top. That is, the first heating channel 430 and the second heating channel 440 in this solution are not closed structures. Users can easily clean the inside of the heater 110 and clean up scale and impurities inside the heater 110 in a timely manner to ensure the cleanliness of the inside of the heater 110.

[0200] The drip tray 460 is placed on top of the heater 110. The drip tray 460 seals the top openings of the first heating channel 430 and the second heating channel 440, preventing external impurities from entering them. Furthermore, since the tops of the inner ring 410 and the outer ring 420 are both in contact with the drip tray 460, steam in the water tank 220 can only enter the first heating channel 430 through the top opening of the outer ring 420, and steam in the first heating channel 430 can only enter the second heating channel 440 through the top opening of the inner ring 410, before flowing to the cooking cavity 310 through the steam outlet 461. This ensures that steam flows within a set path, preventing steam in the water tank 220 from directly flowing to the steam outlet 461.

[0201] Figure 9 The middle arrow is used to indicate the direction of steam flow.

[0202] Combination Figure 9 , Figure 10 and Figure 11 As shown, in some embodiments, the base assembly 200 may optionally include a steam cylinder 470 connected to the drip tray 460, a portion of which extends into the second heating channel 440, through which steam flows to the steam port 461.

[0203] By incorporating a steam cylinder 470 within the heater 110, the steam flowing into the second heating channel 440 does not directly flow to the steam outlet 461, but instead first flows into the steam cylinder 470. This prolongs the steam's flow time within the heater 110. The longer the steam flows within the heater 110, the longer it is heated, thus effectively increasing its temperature. Through this method, the steam discharged into the cooking chamber 310 can reach temperatures above 100°C, shortening the cooking time and accelerating cooking efficiency.

[0204] In an embodiment of this utility model, a cooking device is proposed, including a base assembly 200 as described in any of the above embodiments, and can achieve the same technical effect, which will not be repeated here.

[0205] An electric steamer with the heating component 100 described above has a water-proof cover 231 arranged around the upper periphery of the heating component to prevent water in the water tank 220 from entering the upper layer of the heating component 100. A heat-conducting cylinder 232 is arranged above the upper layer of the heating component 100, with the bottom of the heat-conducting cylinder 232 in direct contact with the top of the upper layer of the heating component 100, so that the heating component 100 can directly heat the heat-conducting cylinder 232.

[0206] like Figure 3 As shown, the cooking device also includes a housing 300, which is fastened to the base 210, and a cooking cavity 310 is provided inside the housing 300. The housing 300 can be a lid structure, or the housing 300 can include a steamer and a lid, thereby forming a multi-layer cavity structure inside the housing 300.

[0207] For example, the cooking equipment can be an electric steamer, a cooking pot, etc.

[0208] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0209] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0210] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heating assembly, characterized in that, The heating assembly is used in a cooking device having a cooking cavity. The heating assembly is used to heat water within the cooking device to provide steam into the cooking cavity. The heating assembly includes: Heater, the heater including a heat insulation part; The first heating element is connected to the heater; The second heating element is connected to the heater, and the heat insulation part is located between the first heating element and the second heating element. When the heating assembly is running, the second heating element can heat the water in the cooking device to generate steam, and the first heating element is in a dry-burning state so that the first heating element heats the steam.

2. The heating assembly according to claim 1, characterized in that, The heater further includes a heat-conducting part, which is connected to the heat-insulating part. The first heating element and the second heating element are disposed on the heat-conducting part, and the heat conductivity of the heat-conducting part is greater than that of the heat-insulating part.

3. The heating assembly according to claim 1, characterized in that, The thickness of the heat insulation part is greater than or equal to 0.5 mm and less than or equal to 2 mm.

4. The heating assembly according to claim 1, characterized in that, The heat insulation part is provided with at least one of the following: heat insulation groove, heat insulation hole, and heat insulation cavity.

5. The heating assembly according to any one of claims 1 to 4, characterized in that, The heating assembly also includes: A heat-conducting element is located between the first heating element and the heater, and between the second heating element and the heater, through which the first heating element and the second heating element transfer heat to the heater.

6. The heating assembly according to claim 5, characterized in that, The heater includes: A first heating cover and a second heating cover, wherein the first heating cover is disposed on top of the second heating cover, the first heating element is located inside the first heating cover, and the second heating element is located inside the second heating cover.

7. The heating assembly according to claim 6, characterized in that, The heating assembly also includes: A separator, located within the heater, is used to separate the internal space of the first heating shroud from the internal space of the second heating shroud.

8. The heating assembly according to claim 7, characterized in that, The separator and the heat-conducting component are an integral structure.

9. The heating assembly according to claim 6, characterized in that, Along a first direction, the second heating element is offset from the first heating cover, and the first direction is perpendicular to the horizontal direction.

10. The heating assembly according to claim 6, characterized in that, The first heating cover has a raised rib on its side, and a receiving portion is formed between the top of the second heating cover and the raised rib, the receiving portion being used to receive a sealing element.

11. The heating assembly according to claim 6, characterized in that, The top of the first heating cover and the top of the second heating cover have a height difference H, where H satisfies: 60mm ≥ H ≥ 5mm.

12. The heating assembly according to claim 5, characterized in that, The heat-conducting component includes: A first heat-conducting part is located between the first heating element and the heater; The second heat-conducting part is located between the second heating element and the heater, and the first heat-conducting part and the second heat-conducting part are spaced apart.

13. The heating assembly according to claim 6, characterized in that, The width W1 of the first heating cover is greater than or equal to 40 mm; and / or The width difference between the top of the first heating cover and the top of the second heating cover is W2, and W2 is greater than or equal to 10mm.

14. The heating assembly according to any one of claims 1 to 4, characterized in that, The heater includes an inner ring and an outer ring, with a first heating channel between the inner ring and the outer ring, and a second heating channel in the inner ring. The second heating channel is connected to the cooking cavity. The first heating element and the second heating element are used to heat the inner ring and the outer ring. The steam generated by the heater heating water flows sequentially through the first heating channel and the second heating channel to the cooking cavity.

15. The heating assembly according to claim 14, characterized in that, The heater also includes: The bottom wall connects the inner ring and the outer ring. The inner ring protrudes from the bottom wall by a height of H1, and the outer ring protrudes from the bottom wall by a height of H2, where H1 ≥ 10 mm and H2 ≥ 10 mm.

16. The heating assembly according to claim 15, characterized in that, The bottom wall includes the heat insulation part, and the minimum thickness of the bottom wall is L, where 1mm ≤ L ≤ 2mm.

17. The heating assembly according to any one of claims 1 to 4, characterized in that, The minimum horizontal distance between the first heating element and the second heating element is H3, where 6mm ≤ H3 ≤ 30mm.

18. The heating assembly according to any one of claims 1 to 4, characterized in that, Both the first heating element and the second heating element are annular.

19. A base assembly, characterized in that, The base assembly is used in a cooking device, and the base assembly includes: Water tank; The heating assembly as claimed in any one of claims 1 to 18, wherein the heating assembly is located inside the water tank, and the heating assembly heats the water in the water tank to provide steam to the cooking cavity.

20. The base assembly according to claim 19, characterized in that, In the case where the heater includes a first heating cover and a second heating cover, the first heating cover is disposed on top of the second heating cover, the first heating element is located inside the first heating cover, and the second heating element is located inside the second heating cover; The base assembly also includes: A water-proof assembly is located inside the water tank, through which steam generated in the water tank flows to the cooking cavity; the water-proof assembly is placed on the heater, with the first heating cover located inside the water-proof assembly and at least a portion of the second heating cover located outside the water-proof assembly.

21. The base assembly according to claim 20, characterized in that, The waterproofing component includes: A water-proof cover, wherein the first heating cover is located inside the water-proof cover, and at least a portion of the second heating cover is located outside the water-proof cover; A heat-conducting cylinder is connected to the water-proof cover and is located inside the water-proof cover. The water-proof cover or the heat-conducting cylinder is provided with an air inlet. Steam in the water tank flows into the space between the water-proof cover and the heat-conducting cylinder through the air inlet. The heat-conducting cylinder is provided with an air outlet. Steam flows into the heat-conducting cylinder through the air outlet. The heat-conducting cylinder is connected to the cooking cavity.

22. The base assembly according to claim 21, characterized in that, The distance between the air inlet and the top of the water-proof cover is less than the distance between the air inlet and the bottom of the water-proof cover; and / or The distance between the vent hole and the top of the heat-conducting cylinder is greater than the distance between the vent hole and the bottom of the heat-conducting cylinder.

23. The base assembly according to claim 21, characterized in that, The air inlet is located at the top of the water-proof cover or the heat-conducting cylinder; and / or The vent is located at the bottom of the heat-conducting cylinder.

24. The base assembly according to claim 21, characterized in that, A portion of the bottom of the heat-conducting cylinder is in contact with the heater, and the other portion of the bottom of the heat-conducting cylinder is provided with the air passage hole.

25. The base assembly according to claim 21, characterized in that, The side of the first heating cover is provided with a rib, and a receiving portion is provided between the rib and the top of the second heating cover; The base assembly also includes: A sealing element is disposed within the receiving portion, located between the heater and the water-proof cover.

26. The base assembly according to any one of claims 20 to 25, characterized in that, The base assembly also includes: An energy-concentrating component is located inside the water tank, which divides the water tank into a water replenishment chamber and a heating chamber. The water replenishment chamber and the heating chamber are connected. The heating component and the water-proof component are located inside the heating chamber, and the heating chamber is connected to the interior of the water-proof component.

27. The base assembly according to claim 26, characterized in that, The energy-concentrating component and the water-proof assembly are sealed together to prevent steam in the heating chamber from flowing directly into the cooking chamber.

28. The base assembly according to claim 26, characterized in that, The energy-concentrating component includes: The energy-concentrating ring is located inside the water tank; An annular baffle is provided on the energy-concentrating ring, and the annular baffle is in contact with the water-proof component.

29. The base assembly according to claim 28, characterized in that, The energy-concentrating component also includes: The air outlet is connected to the energy-concentrating ring. The air outlet is located above the water-proof assembly. Along the circumference of the air outlet, the air outlet is provided with an air outlet hole. The steam in the water-proof assembly flows to the cooking cavity through the air outlet.

30. The base assembly according to claim 19, characterized in that, In the case where the heater includes an inner ring and an outer ring, a first heating channel is provided between the inner ring and the outer ring, and a second heating channel is provided in the inner ring. The second heating channel is connected to the cooking cavity, and the first heating element and the second heating element are used to heat the inner ring and the outer ring. The base assembly also includes: A drip tray is placed on top of the inner ring and the outer ring. The drip tray covers the top of the first heating channel and the second heating channel so that the steam generated by the heater heating water flows sequentially through the first heating channel and the second heating channel to the cooking cavity. The drip tray is provided with a steam port, and the steam in the second heating channel flows to the cooking cavity through the steam port.

31. The base assembly according to claim 30, characterized in that, The base assembly also includes: A steam cylinder is connected to the drip tray, and a portion of the steam cylinder extends into the second heating channel, through which steam flows to the steam outlet.

32. A cooking device, characterized in that, include: The base assembly as described in any one of claims 19 to 31.

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