Base assembly and cooking equipment
By setting two sets of heating channels and an extended wall structure inside the heater, the steam flow time and heating area are extended, solving the problem of insufficient steam temperature in electric steamers and achieving efficient cooking results and nutrient retention.
Patent Information
- Application Number
- CN202520173774.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing electric steamers can only reach a maximum steam temperature of 100℃ during cooking, resulting in longer cooking times and loss of nutrients.
Two sets of heating channels are set inside the heater. The first heating channel and the second heating channel between the inner ring and the outer ring extend the steam flow time, and the heating area is increased by extending the wall to enhance the steam temperature.
Increasing the steam temperature to over 100°C shortens cooking time and reduces nutrient loss.
Smart Images
Figure CN223773548U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cooking equipment technical field, specifically, bottom base assembly and cooking equipment. BACKGROUND
[0002] The electric steamer can reach 100 DEG C at most in the cooking cavity during cooking, and the cooking time is long when cooking meat or coarse grains, and the nutrition is lost with the increase of the cooking time. SUMMARY
[0003] The utility model aims at solving one of the technical problems existing in prior art or related art.
[0004] Therefore, in a first aspect, the utility model provides a bottom base assembly, which is used for a cooking equipment, and the cooking equipment has a cooking cavity, and the bottom base assembly comprises: a bottom base; a water tank located in the bottom base; a heater located in the water tank, the heater comprises an inner ring, an outer ring and an extension wall, a first heating channel is arranged between the inner ring and the outer ring, the first heating channel is communicated with the water tank, a second heating channel is arranged in the inner ring, the second heating channel is communicated with the cooking cavity, the first heating channel and the second heating channel are communicated, the extension wall is arranged on the outer side of the outer ring, from the side of the outer ring connected to the extension wall to the side away from the outer ring, the width of the extension wall is W, and 3mm≤W≤40mm; and a heating piece arranged on the heater, the heating piece is used for heating the heater so that the outer ring and the extension wall heat the water in the water tank.
[0005] The water tank is arranged on the bottom base, the water tank is used for storing water, the heater is arranged in the water tank, the heating piece can heat the heater, the heater is used for heating the water in the water tank, so that steam is generated in the water tank, the steam can flow through the inside of the heater and then flow to the cooking cavity, so that the steam heats the food.
[0006] The heater comprises the inner ring and the outer ring, the first heating channel is formed between the inner ring and the outer ring, the second heating channel is formed in the inner ring, the first heating channel is communicated with the water tank, and the first heating channel and the second heating channel are communicated.When the heating piece operates, the heater can heat the water tank, when the water in the water tank is heated into steam, the steam in the water tank can flow into the first heating channel, then the steam flows from the first heating channel to the second heating channel, and then flows from the second heating channel to the cooking cavity.The heater can also heat the first heating channel and the second heating channel, so that the steam flowing into the heater can be heated, so that the steam is heated into superheated steam in the first heating channel and the second heating channel.
[0007] By arranging two groups of heating channels in the heater, the steam can flow through the first heating channel and the second heating channel in sequence, the flow time of the steam in the heater is prolonged, the longer the steam flows in the heater, the longer the steam is heated, thereby the temperature of the steam can be effectively improved. In the above manner, the steam discharged into the cooking cavity can reach above 100 DEG C, the cooking time of the food is shortened, and the cooking efficiency is improved, and the loss of nutrients is also avoided by shortening the cooking time.
[0008] The extension wall is connected to the outer ring and is located in the water tank. During the heating process of the heating element on the heater, the temperature of the inner ring, the outer ring and the extension wall will rise. The outer ring and the extension wall can jointly heat the water in the water tank, increase the contact area of the heater and the water, and help to improve the heating speed of the water and the generation speed of the steam. If the width of the extension wall is too short, the heating speed of the water is limited. If the width of the extension wall is too large, it will occupy too much space inside the water tank. In the scheme, the width W of the extension wall is limited to the following range: 3mm≤W≤40mm, so that the extension wall has sufficient surface area and effectively improves the heating speed of the water.
[0009] In addition, the base assembly in the above technical scheme according to the utility model can also have the following additional technical features:
[0010] In some technical solutions, optionally, 3mm≤W≤30mm.
[0011] The width W of the extension wall is limited to the following range: 3mm≤W≤30mm, so that the extension wall has sufficient surface area and can also avoid the width of the extension wall being too large, effectively improving the heating speed of the water.
[0012] In some technical solutions, optionally, the extension wall is at least part of the cavity bottom wall of the water tank inner cavity.
[0013] The extension wall is arranged at the bottom of the water tank and is used as part of the cavity bottom wall of the water tank inner cavity. Therefore, the extension wall is arranged at the lowest position in the water tank inner cavity. When the water amount in the water tank is small, the extension wall still contacts the water, thereby ensuring sufficient heating area to heat the water to generate steam.
[0014] In one possible application, the extension wall is distributed along the circumference of the outer ring.
[0015] In some technical solutions, optionally, the extension wall is lower than the heating element, and at least part of the outer ring is higher than the heating element.
[0016] The heating element is lower than the top of the outer ring, and the heating element is higher than the extension wall. Therefore, along the height direction of the heater, one side of the heating element is provided with the outer ring, and the other side of the heating element is provided with the extension wall.
[0017] Part of the heat of the heating piece needs to be transmitted downward to the extension wall, and part of the heat of the heating piece needs to be transmitted upward to the top of the outer ring. Through the above arrangement, the distance between the top of the outer ring and the extension wall and the heating piece is avoided to be too large, so that the heating piece can effectively heat the outer ring and the extension wall, and each part of the outer ring and the extension wall can reach a high temperature, thereby facilitating to improve the heating speed of the water.
[0018] In some embodiments, the extension wall is located outside the heating piece.
[0019] The extension wall is arranged on the outer side of the heating piece, so that the heating piece is not easy to be too close to the edge of the heater, thereby enabling the heating piece to uniformly heat each part of the heater.
[0020] In some embodiments, the heater further comprises a bottom wall, the inner ring and the outer ring are connected through the bottom wall, the height of the inner ring protruding from the bottom wall is H1, the height of the outer ring protruding from the bottom wall is H2, H1≥10mm, and H2≥10mm.
[0021] The bottom of the inner ring and the bottom of the outer ring are connected through the bottom wall, and the height of the outer ring protruding from the bottom wall is greater than or equal to 10mm, so that the outer ring has sufficient surface area in the height direction to contact the water, which is conducive to improving the heating speed of the water.
[0022] The height of the inner ring protruding from the bottom wall can also be greater than or equal to 10mm, on the basis of which, the volume of the first heating channel and the second heating channel is large, and when the steam flows into the first heating channel and the second heating channel, the steam has a large contact area with the inner ring and the outer ring, which is conducive to improving the heating effect of the inner ring and the outer ring on the steam, and further improving the temperature of the steam.
[0023] In some embodiments, the minimum thickness of the bottom wall is L, and 1mm≤L≤3mm.
[0024] The heating piece can heat the inner ring and the outer ring, the inner ring can heat the first heating channel and the second heating channel, and the outer ring can heat the water in the water tank and the first heating channel.
[0025] In the case that the inner ring and the outer ring are connected through the bottom wall, the heat generated by the heating member for heating the inner ring can be transferred to the outer ring through the bottom wall, and if most of the heat is transferred to the outer ring, the heating effect of the inner ring on the steam will be reduced. Therefore, in the present solution, the minimum thickness L of the bottom wall is limited to satisfy 1mm≤L≤3mm. Within the above range, the thickness of the bottom wall is relatively thin. The thinner the thickness of the bottom wall, the slower the speed of heat transfer from the heating member for heating the inner ring to the outer ring. Therefore, in the case that the thickness of the bottom wall satisfies the above range, the heat for heating the inner ring is not easy to transfer to the outer ring, and the heat for heating the inner ring can effectively heat the first heating channel and the second heating channel, which is beneficial to improve the temperature of the steam.
[0026] In some solutions, the heating member comprises a first heating member and a second heating member, the first heating member is connected with the inner ring, and the second heating member is connected with the outer ring, and the second heating member is lower than the first heating member.
[0027] When the cooking device is running, the first heating member can heat the inner ring, and the second heating member can heat the outer ring, so that the two groups of heating members heat the inner ring and the outer ring at the same time, ensuring that the inner ring and the outer ring can be heated to a relatively high temperature.
[0028] The first heating member is mainly used for heating the inner ring, and the inner ring can heat the first heating channel and the second heating channel. The second heating member is mainly used for heating the outer ring and the extension wall, and the outer ring can heat the water in the water tank and the first heating channel.
[0029] In the present solution, the first heating member and the second heating member are not in the same plane in the height direction, and the first heating member is higher than the second heating member. The purpose is to preferentially heat the lower part of the outer ring by the second heating member, which is beneficial to generate steam faster.
[0030] In the case that the inner ring and the outer ring are connected through the bottom wall, the heat generated by the first heating member can be transferred to the outer ring through the bottom wall, and if most of the heat generated by the first heating member is transferred to the outer ring, the heating effect of the inner ring on the steam will be reduced. Therefore, in the present solution, the minimum thickness of the bottom wall is limited to be less than or equal to 3mm. Within the above range, the thickness of the bottom wall is relatively thin. The thinner the thickness of the bottom wall, the slower the speed of heat transfer from the first heating member to the outer ring. Therefore, in the case that the thickness of the bottom wall satisfies the above range, the heat of the first heating member is not easy to transfer to the outer ring, so that the first heating member is mainly used for heating the inner ring, and most of the heat generated by the first heating member can be used for heating the first heating channel and the second heating channel, which is beneficial to improve the temperature of the steam.
[0031] In some solutions, the heating member comprises a heating portion and a pin portion, the pin portion is located at the end of the heating portion, the heating portion in the first heating member is adjacent to the pin portion in the second heating member, and the heating portion in the second heating member is adjacent to the pin portion in the first heating member.
[0032] The heating part is connected with the pin part, and the pin part is used for connecting an electric wire. When the heating element operates, the temperature of the heating part is higher than that of the pin part.
[0033] The heating part in the first heating element is close to the pin part in the second heating element, that is, the pin part in the first heating element is away from the pin part in the second heating element.
[0034] The heating part in the second heating element is close to the pin part in the first heating element, that is, the pin part in the second heating element is away from the pin part in the first heating element.
[0035] In the above case, the position with a higher temperature in the first heating element is adjacent to the position with a lower temperature in the second heating element, and the position with a higher temperature in the second heating element is adjacent to the position with a lower temperature in the first heating element, so as to make the temperature of the first heating element and the second heating element as evenly distributed as possible in the circumferential direction, thereby uniformly heating the water and the steam.
[0036] In some technical solutions, optionally, the minimum distance between the first heating element and the second heating element is H3, and 6mm≤H3≤30mm.
[0037] The minimum distance H3 between the first heating element and the second heating element satisfies 6mm≤H3≤30mm, so that the heat between the first heating element and the second heating element is not easily transferred to each other, thereby limiting the heat of the first heating element from being transferred to the outer ring, and ensuring that the heat of the first heating element is mainly used for heating the inner ring.
[0038] In some technical solutions, optionally, at least a part of the second heating element is lower than the liquid level in the water tank.
[0039] In the scheme, the relative position of the second heating element and the liquid level in the water tank is limited, at least a part of the second heating element is lower than the liquid level in the water tank, so that the installation position of the second heating element on the outer ring is not too high, and the purpose is to make the second heating element preferentially heat the lower part of the outer ring, which is beneficial to generate steam faster.
[0040] When the amount of water in the water tank is small, in order to ensure that at least a part of the second heating element is lower than the liquid level in the water tank, it is necessary to ensure that the second heating element is installed at a lower position, for example, the second heating element is arranged at the middle and below of the outer ring.
[0041] In some technical solutions, optionally, the water tank is provided with a maximum liquid level line, and at least a part of the second heating element is lower than the maximum liquid level line.
[0042] In the scheme, the relative position of the second heating element and the maximum liquid level line is limited, and the purpose is that the second heating element preferentially heats the lower part of the outer ring, which is beneficial to generate steam faster.
[0043] In some embodiments, the inner ring is provided with a first gap, and the outer ring is provided with a second gap, at least a part of the second gap being distributed in a staggered manner with the first gap.
[0044] The steam in the water tank flows into the first heating channel through the second gap, and the steam in the second heating channel flows into the second heating channel through the first gap.
[0045] Since at least a part of the second gap is distributed in a staggered manner with the first gap, part of the steam flowing into the first heating channel does not directly flow to the first gap, so that part of the steam can flow along the circumference of the inner ring, thereby prolonging the flow duration of the steam in the first heating channel and further improving the heating duration of the steam.
[0046] In some embodiments, the first heating channel is distributed along the circumference of the inner ring; the base assembly further comprises a connecting rib located in the first heating channel and adjacent to the second gap and the first gap along the circumference of the inner ring.
[0047] The circumference of the inner ring is provided with the first heating channel, in order to prolong the duration of the steam being heated in the first heating channel, it is necessary to increase the flow path of the steam in the first heating channel, the maximum path of the steam flowing in the first heating channel is the circumference of the first heating channel. In order to achieve the above-mentioned goal, the second gap and the first gap are arranged adjacent to each other, and a connecting rib is arranged between the second gap and the first gap. Since the second gap and the first gap are arranged adjacent to each other, if no blocking component is arranged between the second gap and the first gap, the steam passing through the second gap will directly flow to the first gap. In order to avoid the above-mentioned situation, a connecting rib is arranged between the second gap and the first gap, which blocks the steam passing through the second gap from directly flowing to the first gap. After the steam flows into the first heating channel, the steam needs to flow in the first heating channel away from the connecting rib, and after the steam flows for a distance in the first heating channel, it passes through the first gap, and the steam flows into the second heating channel through the first gap.
[0048] Since the second gap and the first gap are arranged adjacent to each other, under the blocking action of the connecting rib, the flow path of the steam in the first heating channel is basically equal to the circumference of the first heating channel, thereby prolonging the flow path of the steam in the first heating channel as much as possible, which is conducive to improving the heating effect of the steam.
[0049] In some embodiments, the second gap is located at the top of the outer ring.
[0050] Since the second gap is arranged at the top of the outer ring, the position of the second gap is high, and water in the water tank is not easy to flow into the first heating channel. In the case that steam is generated in the water tank, the rising steam flows into the first heating channel through the second gap. Since the position of the first gap is high, only steam can pass through the second gap, and water in the water tank is not easy to enter the heater. Therefore, scale is not generated in the first heating channel due to heating water, the workload of the user for cleaning the inside of the heater can be saved, and the user's convenience for using the cooking equipment can be improved.
[0051] In some technical solutions, optionally, the water tank is provided with a maximum liquid level line, and the second gap is higher than the maximum liquid level line.
[0052] The water tank is provided with a highest liquid level line, which plays a prompting role during the user's water injection into the water tank, reminding the user not to exceed the highest liquid level line in the water injection into the water tank. Since the second gap is higher than the highest liquid level line, water in the water tank is not easy to flow into the first heating channel. The inside of the first heating channel and the second heating channel is mainly used for heating steam, and does not need to heat water by using heat, thereby being beneficial to form superheated steam.
[0053] In some technical solutions, optionally, the opening area of the first gap is greater than or equal to 50mm 2 ; and / or the opening area of the second gap is greater than or equal to 50mm 2 .
[0054] In order to ensure that steam can flow smoothly into the first heating channel, the opening area of the first gap is limited to be greater than or equal to 50mm 2 in the present solution, in the case of the range, steam can flow into the first heating channel in time.
[0055] Similarly, the opening area of the second gap is limited to be greater than or equal to 50mm 2 in the present solution, steam in the first heating channel can flow smoothly into the first heating channel, and through the above-mentioned manner, it is ensured that steam can be supplemented into the cooking cavity in time.
[0056] In some technical solutions, optionally, the base assembly further comprises: a juice receiving disc, the first heating channel and the second heating channel penetrate the top of the heater, the juice receiving disc is attached to the top of the inner ring and the outer ring, the juice receiving disc is provided with an air outlet, and the air outlet is in communication with the second heating channel.
[0057] The top of the first heating channel and the second heating channel is provided with an opening, that is, the first heating channel and the second heating channel in the present solution are not closed structures, the user can conveniently clean the inside of the heater, the scale and impurities in the inside of the heater can be cleaned in time, and the cleanliness of the inside of the heater is ensured.
[0058] The juice receiving disc is placed on the top of the heater, and the juice receiving disc can close the top openings of the first heating channel and the second heating channel to prevent external impurities from entering the first heating channel and the second heating channel. In addition, since the top of the inner ring and the top of the outer ring are attached to the juice receiving disc, the steam in the water tank can only enter the first heating channel through the second gap, and the steam in the second heating channel can only enter the second heating channel through the first gap, and then flow to the cooking cavity through the gas outlet. In the above manner, the steam can be ensured to flow in the set path, and the steam in the water tank can be prevented from directly flowing to the gas outlet.
[0059] In some embodiments, the base assembly further comprises a steam cylinder in communication with the juice receiving disc, one end of the steam cylinder being in communication with the gas outlet, and the other end of the steam cylinder extending into the second heating channel.
[0060] The steam cylinder is arranged in the heater, and the steam entering the second heating channel needs to pass through the steam cylinder before flowing to the gas outlet.
[0061] By arranging the heat-conducting cylinder in the heater, the steam flowing into the second heating channel will not directly flow to the gas outlet, but will first flow into the heat-conducting cylinder, thereby prolonging the flow time of the steam in the heater. The longer the steam flows in the heater, the longer the steam is heated again, thereby effectively increasing the temperature of the steam. In the above manner, the steam discharged into the cooking cavity can reach above 100℃, thereby shortening the cooking time of the food and accelerating the cooking efficiency.
[0062] In some embodiments, the inner ring is provided with a first gap, the first heating channel and the second heating channel are in communication through the first gap, the bottom of the steam cylinder is in communication with the second heating channel, and the bottom of the steam cylinder is lower than the first gap.
[0063] The bottom of the steam cylinder is provided with an opening, so that the steam in the second heating channel flows into the steam cylinder through the bottom of the steam cylinder. Since the bottom of the steam cylinder is lower than the first gap, the steam flowing into the second heating channel first flows downward to the bottom of the steam cylinder, and then flows upward in the steam cylinder. In the above manner, the flow path of the steam in the heater is further prolonged.
[0064] In some embodiments, the steam cylinder is provided with a third heating channel, the minimum cross-sectional area S1 of the third heating channel satisfies 50mm 2 ≤S1≤200mm 2 ; and / or the minimum cross-sectional area S2 of a part of the second heating channel between the steam cylinder and the inner ring satisfies 50mm 2 ≤S2≤200mm 2 .
[0065] The steam in the second heating channel flows into the third heating channel and then flows to the cooking cavity. 2 The purpose is to avoid that the steam cannot be discharged in time and pressure is formed in the second steam heating channel and the third heating channel.
[0066] In a second aspect, the utility model provides a kind of cooking equipment, including the base component as in the first aspect.
[0067] The additional aspects and advantages of the utility model will become apparent from the following description, or be appreciated by practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0068] The above and / or additional aspects and advantages of the utility model will become apparent from the following description, or be appreciated by practice of the utility model.
[0069] Figure 1 Fig. 1 shows a structural schematic diagram of a cooking equipment in an embodiment of the utility model;
[0070] Figure 2 Fig. 2 shows a structural schematic diagram of a base component in an embodiment of the utility model;
[0071] Figure 3 Fig. 3 shows a structural schematic diagram of a heater in an embodiment of the utility model;
[0072] Figure 4 Fig. 4 shows a structural schematic diagram of a heater and a heating piece in an embodiment of the utility model;
[0073] Figure 5 Fig. 5 shows a bottom structural schematic diagram of a heater in an embodiment of the utility model.
[0074] REFERENCE NUMERALS:
[0075] 100 base component, 110 base, 120 water tank, 121 maximum liquid level line, 122 water barrier rib, 123 water replenishing cavity, 124 heating cavity, 130 heater, 131 inner ring, 132 outer ring, 133 extension wall, 134 first heating channel, 135 second heating channel, 136 bottom wall, 137 first notch, 138 second notch, 139 connecting rib, 140 heating piece, 141 first heating piece, 142 second heating piece, 143 heating part, 144 pipe pin part, 145 outer side, 150 juice receiving disc, 151 air outlet, 160 steam cylinder, 161 third heating channel, 170 steaming tray, 200 shell, 210 cooking cavity. DETAILED DESCRIPTION
[0076] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the following further describes the present application with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0077] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without the other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.
[0078] The following refers to Figures 1 to 5 The base assembly and the cooking device provided according to some embodiments of the present application are described.
[0079] In combination with Figure 1 , Figure 2 , Figure 3 and Figure 4 , in some embodiments of the present application, a base assembly 100 is provided, the base assembly 100 is used for a cooking device, the cooking device has a cooking cavity 210. The base assembly 100 comprises a base 110, a water tank 120, a heater 130 and a heating piece 140, the water tank 120 is located in the base 110, and the heater 130 is located in the water tank 120. The heater 130 comprises an inner ring 131, an outer ring 132 and an extension wall 133, a first heating channel 134 is arranged between the inner ring 131 and the outer ring 132, the first heating channel 134 is in communication with the water tank 120, a second heating channel 135 is arranged in the inner ring 131, the second heating channel 135 is in communication with the cooking cavity 210, the first heating channel 134 and the second heating channel 135 are in communication, the extension wall 133 is arranged on the outer side of the outer ring 132, from the side of the outer ring 132 connected by the extension wall 133 to the side away from the outer ring 132, the width of the extension wall 133 is W, 3mm≤W≤40mm. The heating piece 140 is arranged on the heater 130, and the heating piece 140 is used for heating the heater 130, so that the outer ring 132 and the extension wall 133 heat the water in the water tank 120.
[0080] The water tank 120 is arranged on the base 110, and the water tank 120 is used for storing water. The heater 130 is arranged in the water tank 120, and the heating piece 140 can heat the heater 130. The heater 130 is used for heating the water in the water tank 120, so that steam is generated in the water tank 120. The steam can flow through the inside of the heater 130 and then flow to the cooking cavity 210, so that the steam heats the food material.
[0081] The heater 130 comprises an inner ring 131 and an outer ring 132, a first heating channel 134 is formed between the inner ring 131 and the outer ring 132, a second heating channel 135 is formed in the inner ring 131, the first heating channel 134 is in communication with the water tank 120, and the first heating channel 134 and the second heating channel 135 are in communication. When the heating element 140 is in operation, the heater 130 can heat the water tank 120, and when the water in the water tank 120 is heated into steam, the steam in the water tank 120 can flow into the first heating channel 134, and then the steam flows from the first heating channel 134 to the second heating channel 135, and then flows from the second heating channel 135 to the cooking cavity 210. The heater 130 can also heat the first heating channel 134 and the second heating channel 135, so that the steam flowing into the heater 130 can be heated, so that the steam is heated into superheated steam in the first heating channel 134 and the second heating channel 135.
[0082] By arranging two groups of heating channels in the heater 130, the steam can flow through the first heating channel 134 and the second heating channel 135 in turn, prolonging the flow time of the steam in the heater 130. The longer the steam flows in the heater 130, the longer the steam is heated. Therefore, the temperature of the steam can be effectively increased. In the above manner, the steam discharged into the cooking cavity 210 can reach above 100℃, the cooking time of the food is shortened, and the cooking efficiency is improved. Moreover, by shortening the cooking time, the loss of nutrients can also be avoided.
[0083] The extension wall 133 is connected to the outer side of the outer ring 132, and the extension wall 133 is located in the water tank 120. During the heating process of the heating element 140 on the heater 130, the temperature of the inner ring 131, the outer ring 132 and the extension wall 133 will rise. The outer ring 132 and the extension wall 133 can jointly heat the water in the water tank 120, increase the contact area between the heater 130 and the water, and improve the heating speed of the water and the generation speed of the steam. If the width of the extension wall 133 is too short, the heating speed of the water will be limited. If the width of the extension wall 133 is too large, it will occupy too much space inside the water tank 120. In the present scheme, the width of the extension wall 133 is limited to 3mm≤W≤40mm, so that the extension wall 133 has sufficient surface area to effectively improve the heating speed of the water.
[0084] For example, the width of the extension wall 133 is 3mm, 10mm or 40mm.
[0085] Figure 1 And Figure 2 The arrow in the middle indicates the direction of the steam flow.
[0086] In some embodiments, optionally, 3mm≤W≤30mm.
[0087] The extension wall 133 is in the range of 3mm≤W≤30mm, so that the extension wall 133 has sufficient surface area, and also avoids the width of the extension wall 133 being too large, effectively improving the heating speed of water.
[0088] In combination Figure 2 and Figure 3 As shown in FIG. 1, in some embodiments, the extension wall 133 is optionally a part of the cavity bottom wall 136 of the inner cavity of the water tank 120.
[0089] The extension wall 133 is arranged at the bottom of the water tank 120, and the extension wall 133 is a part of the cavity bottom wall 136 of the inner cavity of the water tank 120, so the extension wall 133 is arranged at the lowest position in the inner cavity of the water tank 120, and the extension wall 133 is still in contact with water when the amount of water in the water tank 120 is small, so as to ensure that the extension wall 133 has sufficient heating area to heat water to generate steam.
[0090] In one possible application, the extension wall 133 is distributed along the circumference of the outer ring 132. Figure 3 The arrow at point C in FIG. 1 points to.
[0091] In combination Figure 3 and Figure 4 As shown in FIG. 1, in some embodiments, the extension wall 133 is optionally lower than the heating element 140, and at least a part of the outer ring 132 is higher than the heating element 140.
[0092] The heating element 140 is lower than the top of the outer ring 132, and the heating element 140 is higher than the extension wall 133, so that along the height direction of the heater 130, one side of the heating element 140 is provided with the outer ring 132, and the other side of the heating element 140 is provided with the extension wall 133.
[0093] Part of the heat of the heating element 140 needs to be transmitted downward to the extension wall 133, and part of the heat of the heating element 140 needs to be transmitted upward to the top of the outer ring 132, and through the above arrangement, the distance between the top of the outer ring 132 and the extension wall 133 and the heating element 140 is avoided to be too large, so that the heating element 140 can effectively heat the outer ring 132 and the extension wall 133, and the outer ring 132 and the extension wall 133 can reach a high temperature, thereby facilitating the improvement of the heating speed of water.
[0094] In some embodiments, the extension wall 133 is optionally located outside the heating element 140.
[0095] The extension wall 133 is arranged at the outer side of the heating element 140, so that the heating element 140 is not easy to be too close to the edge of the heater 130, thereby enabling the heating element 140 to uniformly heat each part of the heater 130.
[0096] In combinationFigure 3 and Figure 4 As shown in FIG. 13 and FIG. 14, in some embodiments, optionally, the heater 130 further comprises a bottom wall 136, the inner ring 131 and the outer ring 132 are connected through the bottom wall 136, the inner ring 131 protrudes from the bottom wall 136 by a height H1, the outer ring 132 protrudes from the bottom wall 136 by a height H2, H1≥10mm, H2≥10mm.
[0097] The bottom of the inner ring 131 and the bottom of the outer ring 132 are connected through the bottom wall 136, the height of the outer ring 132 protruding from the bottom wall 136 is greater than or equal to 10mm, so that the outer ring 132 has sufficient surface area in the height direction to contact water, which is conducive to improving the heating speed of water.
[0098] The height of the inner ring 131 protruding from the bottom wall 136 can also be set to be greater than or equal to 10mm, on this basis, the volume of the first heating channel 134 and the second heating channel 135 is larger, when the steam flows into the first heating channel 134 and the second heating channel 135, the steam has a larger contact area with the inner ring 131 and the outer ring 132, which is conducive to improving the heating effect of the inner ring 131 and the outer ring 132 on the steam, and further improving the temperature of the steam.
[0099] The height of the inner ring 131 and the outer ring 132 protruding from the bottom wall 136 can be the same or different.
[0100] Exemplarily, H1 is 10mm, 12mm or 15mm, H2 is 10mm, 12mm or 15mm.
[0101] In combination with Figure 3 and Figure 4 As shown in FIG. 13 and FIG. 14, in some embodiments, optionally, the minimum thickness of the bottom wall 136 is L, 1mm≤L≤3mm.
[0102] The heating piece 140 can heat the inner ring 131 and the outer ring 132, the inner ring 131 can heat the first heating channel 134 and the second heating channel 135, and the outer ring 132 can heat the water in the water tank 120 and the first heating channel 134.
[0103] When the inner ring 131 and outer ring 132 are connected by the bottom wall 136, the heat from the heating element 140 used to heat the inner ring 131 can be transferred to the outer ring 132 through the bottom wall 136. If most of the heat is transferred to the outer ring 132, the heating effect of the inner ring 131 on the steam will be reduced. Therefore, in this design, the minimum thickness L of the bottom wall 136 is limited to 1mm ≤ L ≤ 3mm. Within this range, the thickness of the bottom wall 136 is relatively thin. The thinner the bottom wall 136, the slower the heat transferred from the inner ring 131 to the outer ring 132. Therefore, when the thickness of the bottom wall 136 meets the above-mentioned range, the heat used to heat the inner ring 131 is not easily transferred to the outer ring 132. The heat used to heat the inner ring 131 can effectively heat the first heating channel 134 and the second heating channel 135, which is beneficial to increasing the steam temperature.
[0104] For example, L is 3mm, 2mm or 1mm.
[0105] Combination Figure 2 and Figure 4 As shown, in some embodiments, optionally, the heating element 140 includes a first heating element 141 and a second heating element 142, the first heating element 141 is connected to the inner ring 131, the second heating element 142 is connected to the outer ring 132, and the second heating element 142 is lower than the first heating element 141.
[0106] When the cooking equipment is running, the first heating element 141 can heat the inner ring 131, and the second heating element 142 can heat the outer ring 132, so that the two sets of heating elements 140 can heat the inner ring 131 and the outer ring 132 at the same time, ensuring that the inner ring 131 and the outer ring 132 can be heated to a higher temperature.
[0107] The first heating element 141 is mainly used to heat the inner ring 131, which can heat the first heating channel 134 and the second heating channel 135. The second heating element 142 is mainly used to heat the outer ring 132 and the extension wall, which can heat the water in the water tank 120 and the first heating channel 134.
[0108] In this design, the first heating element 141 and the second heating element 142 are no longer on the same plane in the height direction. The first heating element 141 is higher than the second heating element 142. The purpose is that the second heating element 142 preferentially heats the lower part of the outer ring 132, which is conducive to generating steam more quickly.
[0109] In the case that the inner ring 131 and the outer ring 132 are connected through the bottom wall 136, the heat generated by the first heating member 141 can be transferred to the outer ring 132 through the bottom wall 136, and if most of the heat generated by the first heating member 141 is transferred to the outer ring 132, the heating effect of the inner ring 131 on the steam will be reduced. Therefore, in the present scheme, the minimum thickness of the bottom wall 136 is limited to be less than or equal to 3 mm, and in the above range, the thickness of the bottom wall 136 is relatively thin. The thinner the thickness of the bottom wall 136, the slower the heat transfer speed of the first heating member 141 to the outer ring 132, and therefore, in the case that the thickness of the bottom wall 136 satisfies the above range, the heat of the first heating member 141 is not easy to be transferred to the outer ring 132, so that the first heating member 141 is mainly used for heating the inner ring 131, and most of the heat generated by the first heating member 141 can be used for heating the first heating channel 134 and the second heating channel 135, which is beneficial to improve the temperature of the steam.
[0110] In combination with Figure 2 , Figure 4 and Figure 5 , in some embodiments, the heating member 140 includes a heating portion 143 and a pin portion 144, the pin portion 144 is located at the end of the heating portion 143, the heating portion 143 in the first heating member 141 is adjacent to the pin portion 144 in the second heating member 142, and the heating portion 143 in the second heating member 142 is adjacent to the pin portion 144 in the first heating member 141.
[0111] The heating portion 143 and the pin portion 144 are connected, and the pin portion 144 is used for connecting the wire, and the temperature of the heating portion 143 is higher than that of the pin portion 144 when the heating member 140 is running.
[0112] The heating portion 143 in the first heating member 141 is close to the pin portion 144 in the second heating member 142, that is, the pin portion 144 in the first heating member 141 is away from the pin portion 144 in the second heating member 142.
[0113] The heating portion 143 in the second heating member 142 is close to the pin portion 144 in the first heating member 141, that is, the pin portion 144 in the second heating member 142 is away from the pin portion 144 in the first heating member 141.
[0114] In the above case, the position with higher temperature in the first heating member 141 is adjacent to the position with lower temperature in the second heating member 142, and the position with higher temperature in the second heating member 142 is adjacent to the position with lower temperature in the first heating member 141, the purpose is to make the temperature of the first heating member 141 and the second heating member 142 as evenly distributed as possible in the circumferential direction, so as to uniformly heat the water and the steam.
[0115] It should be noted that, Figure 5In the diagram, reference numeral 141 indicates the pin portion 144 in the first heating element 141, and reference numeral 142 indicates the heating portion 143 in the second heating element 142.
[0116] like Figure 4 As shown, in some embodiments, optionally, the minimum distance between the first heating element 141 and the second heating element 142 is H3, where 6mm ≤ H3 ≤ 30mm.
[0117] The minimum distance H3 between the first heating element 141 and the second heating element 142 satisfies 6mm≤H3≤30mm, which makes it difficult for heat to be transferred between the first heating element 141 and the second heating element 142, thereby limiting the transfer of heat from the first heating element 141 to the outer ring 132 and ensuring that the heat from the first heating element 141 is mainly used to heat the inner ring 131.
[0118] For example, the minimum distance between the first heating element 141 and the second heating element 142 is 6 mm, 8 mm or 30 mm.
[0119] In some embodiments, optionally, at least a portion of the second heating element 142 is below the liquid level in the water tank 120.
[0120] In this design, the relative position of the second heating element 142 and the liquid level in the water tank 120 is defined. At least a portion of the second heating element 142 is lower than the liquid level in the water tank 120, so that the installation position of the second heating element 142 on the outer ring 132 is not too high. The purpose is to make the second heating element 142 preferentially heat the lower part of the outer ring 132, which is conducive to generating steam more quickly.
[0121] When the water level in the water tank 120 is low, in order to ensure that at least a portion of the second heating element 142 is lower than the water level in the water tank 120, the second heating element 142 needs to be installed in a lower position, for example, the second heating element 142 is located in the middle and below of the outer ring 132.
[0122] like Figure 2 As shown, in some embodiments, optionally, the water tank 120 is provided with a maximum liquid level line 121, and at least a portion of the second heating element 142 is below the maximum liquid level line 121.
[0123] In this design, the relative position of the second heating element 142 and the maximum liquid level line 121 is defined so that the second heating element 142 can preferentially heat the lower part of the outer ring 132, which is conducive to generating steam more quickly.
[0124] like Figure 3 As shown, in some embodiments, optionally, the inner ring 131 is provided with a first gap 137, and the outer ring 132 is provided with a second gap 138, at least a portion of the second gap 138 being misaligned with the first gap 137.
[0125] The steam in the water tank 120 flows into the first heating channel 134 through the second gap 138, and the steam in the second heating channel 135 flows into the second heating channel 135 through the first gap 137.
[0126] Since at least a part of the second gap 138 is distributed staggered with the first gap 137, part of the steam flowing into the first heating channel 134 will not directly flow to the first gap 137, so that part of the steam can flow along the circumference of the inner ring 131, thereby prolonging the flow time of the steam in the first heating channel 134, and further improving the heating time of the steam.
[0127] As shown in FIG. 1, in some embodiments, optionally, the first heating channel 134 is distributed along the circumference of the inner ring 131, and the base assembly 100 further comprises a connecting rib 139 located in the first heating channel 134, adjacent to the second gap 138 and the first gap 137 along the circumference of the inner ring 131, and the connecting rib 139 is spaced apart from the second gap 138 and the first gap 137. Figure 3
[0128] The inner ring 131 is distributed with the first heating channel 134 along the circumference, in order to prolong the heating time of the steam in the first heating channel 134, it is necessary to increase the flow path of the steam in the first heating channel 134, and the maximum path of the steam flowing in the first heating channel 134 is the circumference of the first heating channel 134. In order to achieve the above goal, the second gap 138 and the first gap 137 are arranged adjacent to each other, and the connecting rib 139 is arranged between the second gap 138 and the first gap 137. Since the second gap 138 and the first gap 137 are arranged adjacent to each other, if no blocking component is arranged between the second gap 138 and the first gap 137, the steam passing through the second gap 138 will directly flow to the first gap 137. In order to avoid the above situation, the connecting rib 139 is arranged between the second gap 138 and the first gap 137, which blocks the steam passing through the second gap 138 from directly flowing to the first gap 137. After the steam flows into the first heating channel 134, the steam needs to flow in the first heating channel 134 away from the connecting rib 139, and after the steam flows in the first heating channel 134 for a distance, it passes through the first gap 137 and flows into the second heating channel 135.
[0129] Since the second gap 138 and the first gap 137 are arranged adjacent to each other, under the blocking action of the connecting rib 139, the flow path of the steam in the first heating channel 134 is basically equal to the circumference of the first heating channel 134, which prolongs the flow path of the steam in the first heating channel 134 as much as possible, which is beneficial to improve the heating effect of the steam.
[0130] As shown in FIG. 1, in some embodiments, optionally, the first heating channel 134 is distributed along the circumference of the inner ring 131, and the base assembly 100 further comprises a connecting rib 139 located in the first heating channel 134, adjacent to the second gap 138 and the first gap 137 along the circumference of the inner ring 131, and the connecting rib 139 is spaced apart from the second gap 138 and the first gap 137. Figure 3 As shown, in some embodiments, optionally, the second gap 138 is located at the top of the outer ring 132.
[0131] Since the second gap 138 is arranged at the top of the outer ring 132, the position of the second gap 138 is high, and water in the water tank 120 is not easy to flow into the first heating channel 134. In the case of generating steam in the water tank 120, the rising steam flows into the first heating channel 134 through the second gap 138. Since the position of the first gap 137 is high, only steam can pass through the second gap 138, and water in the water tank 120 is not easy to enter the heater 130. Therefore, the inside of the first heating channel 134 will not produce scale due to heating water, and the workload of the user to clean the inside of the heater 130 can be saved, which is beneficial to improve the user's convenience in using the cooking equipment.
[0132] In combination Figure 2 and Figure 3 As shown, in some embodiments, optionally, the water tank 120 is provided with a maximum liquid level line 121, and the second gap 138 is higher than the maximum liquid level line 121.
[0133] The water tank 120 is provided with a highest liquid level line, which plays a prompting role during the user's water injection into the water tank 120, reminding the user not to exceed the highest liquid level line when injecting water into the water tank 120. Since the second gap 138 is higher than the highest liquid level line, water in the water tank 120 is not easy to flow into the first heating channel 134. The inside of the first heating channel 134 and the second heating channel 135 is mainly used for heating steam, and does not need to heat water by using heat, thereby being beneficial to form superheated steam.
[0134] In some embodiments, optionally, the opening area of the first gap 137 is greater than or equal to 50mm 2 ; and / or the opening area of the second gap 138 is greater than or equal to 50mm 2 .
[0135] In order to ensure that the steam can flow smoothly into the first heating channel 134, the opening area of the first gap 137 is limited to be greater than or equal to 50mm 2 in the present scheme, and in this range, the steam can flow into the first heating channel 134 in time.
[0136] Similarly, the opening area of the second gap 138 is limited to be greater than or equal to 50mm 2 in the present scheme, and the steam in the first heating channel 134 can flow smoothly into the first heating channel 134, and through the above-mentioned manner, it is ensured that the steam can be replenished into the cooking cavity 210 in time.
[0137] Exemplarily, the opening area of the first gap 137 is 50mm 2 , 60mm2 Or 70mm 2 The opening area of the second notch 138 is 50mm. 2 60mm 2 Or 70mm 2 .
[0138] Combination Figure 1 and Figure 2 As shown, in some embodiments, optionally, the base assembly 100 further includes: a juice receiving tray 150, a first heating channel 134 and a second heating channel 135 passing through the top of the heater 130, the juice receiving tray 150 being attached to the top of the inner ring 131 and the outer ring 132, and the juice receiving tray 150 being provided with an air outlet 151, which is connected to the second heating channel 135.
[0139] Both the top of the first heating channel 134 and the second heating channel 135 are provided with openings. That is, the first heating channel 134 and the second heating channel 135 in this solution are not closed structures. Users can conveniently clean the inside of the heater 130 and clean up scale and impurities inside the heater 130 in a timely manner to ensure the cleanliness of the inside of the heater 130.
[0140] The drip tray 150 is placed on top of the heater 130. The drip tray 150 can seal the top openings of the first heating channel 134 and the second heating channel 135, preventing external impurities from entering them. Furthermore, since the tops of the inner ring 131 and the outer ring 132 are both in contact with the drip tray 150, steam in the water tank 120 can only enter the first heating channel 134 through the second notch 138, and steam in the second heating channel 135 can only enter the second heating channel 135 through the first notch 137, and then flow to the cooking cavity 210 through the steam outlet 151. This ensures that steam flows within a set path, preventing steam in the water tank 120 from flowing directly to the steam outlet 151.
[0141] Combination Figure 1 and Figure 2 As shown, in some embodiments, the base assembly 100 may optionally include a steam cylinder 160, which is connected to the drip tray 150. One end of the steam cylinder 160 is connected to the air outlet 151, and the other end of the steam cylinder 160 extends into the second heating channel 135.
[0142] A steam cylinder 160 is provided inside the heater 130. The steam entering the second heating channel 135 needs to pass through the steam cylinder 160 before flowing to the outlet 151.
[0143] By incorporating a heat-conducting cylinder within the heater 130, the steam flowing into the second heating channel 135 does not directly flow to the outlet 151, but instead first flows into the heat-conducting cylinder. This prolongs the steam's flow time within the heater 130. The longer the steam flows within the heater 130, the longer it is reheated, thus effectively increasing its temperature. Through this method, the steam discharged into the cooking chamber 210 can reach temperatures above 100°C, shortening the cooking time and accelerating cooking efficiency.
[0144] Combination Figure 2 and Figure 3 As shown, in some embodiments, optionally, the inner ring 131 is provided with a first notch 137, the first heating channel 134 and the second heating channel 135 are connected through the first notch 137, the bottom of the steam cylinder 160 is connected to the second heating channel 135, and the bottom of the steam cylinder 160 is lower than the first notch 137.
[0145] An opening is provided at the bottom of the steam cylinder 160, allowing steam in the second heating channel 135 to flow into the steam cylinder 160 through the bottom. Since the bottom of the steam cylinder 160 is lower than the first notch 137, the steam flowing into the second heating channel 135 first flows downward to the bottom of the steam cylinder 160, and then flows upward within the steam cylinder 160. In this way, the flow path of the steam within the heater 130 is further extended.
[0146] In some embodiments, optionally, a third heating channel 161 is provided inside the steam cylinder 160, and the minimum cross-sectional area S1 of the third heating channel 161 satisfies 50 mm. 2 ≤S1≤200mm 2 The minimum cross-sectional area S2 of a portion of the second heating channel 135 between the steam cylinder 160 and the inner ring 131 satisfies 50 mm. 2 ≤S2≤200mm 2 .
[0147] Steam in the second heating channel 135 flows into the third heating channel 161 and then into the cooking chamber 210. In this design, the minimum cross-sectional area of a portion of the second heating channel 135 and the third heating channel 161 between the steam cylinder 160 and the inner ring 131 is limited to 50 mm². 2 Up to 200mm 2 The purpose is to prevent steam from not being discharged in time and to create pressure in the second heating channel 135 and the third heating channel 161.
[0148] For example, the minimum cross-sectional area of the third heating channel 161 is 50 mm. 2 60mm 2 Or 70mm 2The minimum cross-sectional area of the second heating channel 135 between the steam cylinder 160 and the inner ring 131 is 50mm 2 , 60mm 2 or 70mm 2 .
[0149] As shown in Figure 2 , in a possible embodiment, a water tank 120 is provided with a water partition 122, which divides the water tank 120 into a water supplement cavity 123 and a heating cavity 124. The heater 130 is located in the heating cavity 124 and is used to heat the water in the heating cavity 124. The water partition 122 is provided with a hole to connect the water supplement cavity 123 and the heating cavity 124. According to the principle of the communicating vessel, the water supplement cavity 123 is used to supplement water to the heating cavity 124. The small amount of water in the heating cavity 124 is heated by the heater 130, which helps to improve the steam generation speed.
[0150] As shown in Figure 1 and Figure 2 , in a possible embodiment, the base assembly 100 further comprises a steaming tray 170, which is placed on the juice collecting tray 150. The steaming tray 170 is provided with a plurality of holes for placing food or a container containing food. The steam flows into the cooking cavity 210 through the holes.
[0151] In the embodiments of the present application, a cooking device is provided, which comprises the base assembly 100 in any of the above embodiments and can achieve the same technical effects, which will not be described here.
[0152] As shown in Figure 1 , the cooking device further comprises a shell 200, which is buckled on the base 110. The shell 200 is provided with a cooking cavity 210. The shell 200 can be a cover structure, or the shell 200 comprises a steaming cage and a cover, so as to form a multi-layer cavity structure in the shell 200.
[0153] Exemplarily, the cooking device can be an electric steamer, a steaming pot, etc.
[0154] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connecting" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0155] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0156] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A base assembly characterized by, The base assembly is used for a cooking device having a cooking cavity, the base assembly comprising: a base; a water tank located in the base; a heater located in the water tank, the heater comprising an inner ring, an outer ring, and an extension wall, a first heating channel being provided between the inner ring and the outer ring, the first heating channel being in communication with the water tank, a second heating channel being provided in the inner ring, the second heating channel being in communication with the cooking cavity, the first heating channel and the second heating channel being in communication, the extension wall being provided outside the outer ring, from a side of the extension wall connected to the outer ring to a side of the extension wall away from the outer ring, the width of the extension wall being W, 3mm≤W≤40mm; a heating element provided on the heater, the heating element being used for heating the heater, so that the outer ring and the extension wall heat water in the water tank.
2. The base assembly of claim 1, wherein, 3mm≤W≤30mm.
3. The base assembly of claim 1, wherein, The extension wall serves as at least part of a cavity bottom wall of an inner cavity of the water tank.
4. The base assembly of claim 1, wherein, The extension wall is lower than the heating element, and at least part of the outer ring is higher than the heating element.
5. The base assembly of claim 1, wherein, The extension wall is located outside the heating element.
6. The base assembly of any one of claims 1 to 5, wherein, The heater further comprises: a bottom wall, the inner ring and the outer ring being connected by the bottom wall, the height of the inner ring protruding from the bottom wall being H1, the height of the outer ring protruding from the bottom wall being H2, H1≥10mm, H2≥10mm.
7. The base assembly of claim 6, wherein, The minimum thickness of the bottom wall is L, 1mm≤L≤3mm.
8. The base assembly of any one of claims 1-5, wherein, The heating element comprises a first heating element and a second heating element, the first heating element being connected to the inner ring, and the second heating element being connected to the outer ring, the second heating element being lower than the first heating element.
9. The base assembly of claim 8, wherein, The heating element comprises a heating portion and a pin portion, the pin portion being located at the end of the heating portion, the heating portion in the first heating element being adjacent to the pin portion in the second heating element, and the heating portion in the second heating element being adjacent to the pin portion in the first heating element.
10. The base assembly of claim 8, wherein, The minimum distance between the first heating element and the second heating element is H3, 6mm≤H3≤30mm.
11. The base assembly of claim 8, wherein, At least part of the second heating element is lower than the liquid level in the water tank.
12. The base assembly of claim 8, wherein, The water tank is provided with a maximum liquid level line, and at least part of the second heating element is lower than the maximum liquid level line.
13. The base assembly of any one of claims 1-5, wherein, A first notch is provided on the inner ring, and a second notch is provided on the outer ring, at least part of the second notch being distributed in a staggered manner with the first notch.
14. The base assembly of claim 13, wherein, The first heating channel is distributed along the circumference of the inner ring; The base assembly further comprises: a connecting rib located in the first heating channel along the circumference of the inner ring, the second notch and the first notch being arranged adjacent to each other, and the connecting rib being spaced apart from the second notch and the first notch.
15. The base assembly of claim 13, wherein, The second notch is located at the top of the outer ring.
16. The base assembly of claim 13, wherein, The water tank is provided with a maximum liquid level line, and the second notch is higher than the maximum liquid level line.
17. The base assembly of claim 13, wherein, the opening area of the first gap is greater than or equal to 50 mm 2 ; and / or the opening area of the second gap is greater than or equal to 50 mm 2 .
18. The base assembly of any one of claims 1-5, wherein, The base assembly further comprises: a juice receiving disc, the first heating channel and the second heating channel penetrating through the top of the heater, the juice receiving disc being attached to the top of the inner ring and the outer ring, and an air outlet being provided on the juice receiving disc, the air outlet being in communication with the second heating channel.
19. The base assembly of claim 18, wherein, The base assembly further comprises: A steam cylinder in communication with the juice receiving disc, one end of the steam cylinder being in communication with the gas outlet, the other end of the steam cylinder extending into the second heating channel.
20. The base assembly of claim 19, wherein, A first notch is provided on the inner ring, the first heating channel and the second heating channel being in communication through the first notch, the bottom of the steam cylinder being in communication with the second heating channel, the bottom of the steam cylinder being lower than the first notch.
21. The base assembly of claim 19, wherein, The minimum cross-sectional area S1 of the third heating channel satisfies 50mm 2 ≤S1≤200mm 2 ; and / or the minimum cross-sectional area S2 of a part of the second heating channel between the steam cylinder and the inner ring satisfies, 50mm 2 ≤S2≤200mm 2 .
22. A cooking apparatus, characterized by, Comprising: The base assembly of any one of claims 1 to 21.