Base assembly and cooking equipment

Abstract

The utility model provides a base assembly and cooking equipment, the base assembly is used for the cooking equipment, the cooking equipment comprises a cooking cavity, and the base assembly comprises a base, a water tank, a steam generating assembly and a floater. The water tank is located in the base and provided with a communication port, the steam generation assembly is located in the water tank and provided with a steam generation cavity, the steam generation assembly is used for providing steam into the cooking cavity, and the water tank is communicated with the steam generation cavity when the communication port is opened. The floater is connected with the water tank, the sum of the pressure applied to the floater by water in the water tank and the gravity of the floater is F1, the buoyancy applied to the floater by water in the steam generating cavity is F2, the floater opens the communicating port under the condition that F1 is larger than F2, and the floater closes the communicating port under the condition that F2 is larger than F1. By means of the mode, the fixed water amount is kept in the steam generation cavity, the water amount heated by the steam generation assembly is basically kept constant, and the cooking effect on food materials can be improved.

Description

Base assembly and cooking equipment Technical Field

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

[0002] The water tank of the steamer contains water, which is heated to produce steam, and the steam heats the food.

[0003] The rate at which steam is generated varies depending on the amount of water in the tank, resulting in different levels of doneness of the ingredients within the same cooking time, making it difficult to guarantee the desired cooking effect. Summary of the Invention

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] In view of this, in a first aspect, the present invention proposes a base assembly for a cooking device, the cooking device including a cooking cavity, the base assembly including: a base; a water tank located inside the base, the water tank having a connecting port; a steam generating assembly, at least a portion of the steam generating assembly located inside the water tank, the steam generating assembly having a steam generating chamber, the steam generating assembly being used to supply steam to the cooking cavity, the water tank being connected to the steam generating chamber when the connecting port is open; and a float connected to the water tank, the sum of the pressure exerted on the float by the water in the water tank and the weight of the float being F1, the buoyancy exerted on the float by the water in the steam generating chamber being F2, the float opening the connecting port when F1 is greater than F2, and the float closing the connecting port when F2 is greater than F1.

[0006] At least a portion of the steam generating assembly is located inside the water tank, which can replenish water to the steam generating chamber. When the steam generating assembly operates, it generates steam. The steam in the steam generating chamber is discharged and flows into the cooking chamber, thus providing steam to the cooking chamber. The steam heats the food, achieving the cooking function.

[0007] A connecting port is machined into the water tank. When the port is open, the water tank is connected to the steam generating chamber, and water from the tank flows into the steam generating chamber. When the port is closed, water no longer flows from the tank into the steam generating chamber. A float is installed on the water tank, which can slide relative to the tank. In this design, the connecting port is opened or closed via the float.

[0008] The forces acting on the float include: the pressure exerted by the water in the tank, the float's own weight, and the buoyancy exerted by the water in the steam generating chamber. These forces will be referred to as pressure, weight, and buoyancy. During the evaporation of water in the steam generating assembly, the water volume in the steam generating chamber decreases, and the buoyancy on the float decreases. When the sum of pressure and weight exceeds the buoyancy, the float is pushed towards the steam generating chamber, opening the connection and allowing water from the tank to enter. As the water volume in the steam generating chamber increases, when the buoyancy exceeds the sum of pressure and weight, the float closes the connection, preventing further water from entering the steam generating chamber. This method maintains a constant water volume in the steam generating chamber, keeps the amount of water heated by the steam generating assembly essentially constant, and ensures a relatively constant steam generation rate. Consequently, the same ingredient cooked to a similar doneness within the same cooking time is cooked to a similar degree, improving the cooking effect.

[0009] In some technical solutions, optionally, a guide channel is provided on the water tank, through which the steam generating chamber and the connecting port are connected, and the float can slide within the guide channel to open or close the connecting port.

[0010] The water tank has a guide channel machined into it, and the float is located inside the guide channel and can slide within the guide channel. When the sum of pressure and gravity is greater than the buoyancy, the float is pushed towards the steam generating chamber within the guide channel, at which point the connection port opens. When the buoyancy is greater than the sum of pressure and gravity, the float moves towards the connection port within the guide channel, and the float closes the connection port.

[0011] The guide channel guides the float, allowing it to move back and forth along a fixed path, preventing the float from shifting position relative to the connection port and ensuring that the float can stably close the connection port.

[0012] In some technical solutions, the connection port may optionally be located on the bottom wall of the water tank, and the guide channel may be located at the bottom of the connection port.

[0013] The connecting port is located on the bottom wall of the water tank. When the connecting port is open, even when the water level in the tank is low, water can still be added to the steam generating chamber, reducing the risk of dry burning within the steam generating chamber. The guide channel is located at the bottom of the connecting port, so as long as there is still a small amount of water on the bottom wall of the water tank, water can be added to the steam generating chamber, again to reduce the risk of dry burning within the steam generating chamber.

[0014] In some technical solutions, optionally, a portion of the steam generating assembly is lower than the bottom wall, and / or the water level within the steam generating assembly is lower than the bottom wall.

[0015] Part of the steam generating assembly is lower than the bottom wall. When a small amount of water is injected into the steam generating assembly, the float will rise and close the connection port, so that a small amount of water is kept in the steam generating chamber, thereby increasing the steam generation rate.

[0016] When water from the water tank is added to the steam generating chamber, the water level in the steam generating chamber is lower than the bottom wall of the water tank. When the water in the steam generating assembly decreases, the float can quickly move to replenish water in the steam generating chamber in time, thus avoiding the problem of dry burning in the steam generating chamber.

[0017] In some technical solutions, the float may optionally be positioned below the bottom wall, and the float may be spaced apart from the steam generating chamber.

[0018] When the steam generating unit is working, the water inside boils. The float is spaced apart from the steam generating chamber, reducing the impact of the steam generating chamber on the float's movement and improving the accuracy of water volume control within the steam generating chamber. The float is positioned below the bottom wall of the water tank, ensuring that all water in the tank enters the steam generating chamber.

[0019] In some technical solutions, the base assembly may optionally include a sealing ring, which passes through the communication port and has a communication channel through which the water tank and the steam generating chamber are connected. When the float closes the communication port, the circumferential direction of the float is in contact with the sealing ring.

[0020] A sealing ring is installed inside the connecting port. When the float closes the connecting port, the float rests against the sealing ring. Because the sealing ring is relatively soft, the float and the sealing ring can fit tightly together, and there is little chance of gaps between the float and the sealing ring. This allows the float to tightly close the connecting port, preventing water from the water tank from entering the steam generating chamber when the connecting port is closed, and ensuring that the steam generating component only heats a fixed amount of water.

[0021] In some technical solutions, optionally, the end of the connecting channel facing the float is flared, and when the float closes the connecting opening, the float fits against the inner wall of the connecting channel.

[0022] One end of the connecting channel faces the float, and the end of the connecting channel facing the float has a flared structure. As the float moves toward the connecting opening, a part of the float can extend into the connecting channel, so that a part of the float fits against the inner wall of the connecting channel. In this way, when the float closes the connecting opening, the float and the sealing ring have a larger contact area, and the float and the sealing ring fit more tightly, improving the sealing performance between the float and the sealing ring.

[0023] In some technical solutions, the sealing ring can optionally be clamped and fixed to the bottom wall of the water tank along its circumference.

[0024] The sealing ring has a ring structure and is circumferentially clamped onto the bottom wall of the water tank, thus completing the installation of the sealing ring. The installation process of the sealing ring does not require the use of additional parts, which simplifies the structure and improves the convenience of disassembling and assembling the sealing ring.

[0025] The end of the sealing ring facing the float is flared, allowing part of the sealing ring to fit against the bottom of the bottom wall. Similarly, the end of the sealing ring away from the float also needs to be flared, so that part of the sealing ring fits against the top of the bottom wall, thus clamping the sealing ring onto the bottom wall of the water tank.

[0026] When the sealing ring is flared on the side away from the float, the connecting channel is not easily blocked by impurities in the water tank, and the water in the water tank can flow smoothly to the steam generating chamber.

[0027] In some technical solutions, optionally, the steam generating assembly includes: a heating plate located inside the base; a concentrating ring, at least a portion of which extends into the water tank, the heating plate located at the bottom of the concentrating ring, a steam generating chamber provided inside the concentrating ring, and a concave portion provided on the side of the concentrating ring, with a float accommodated in the concave portion.

[0028] The energy-concentrating ring has a ring-shaped structure and a steam generating chamber inside. The heating plate is located at the bottom of the energy-concentrating ring. When the heating plate is running, it heats the water inside the energy-concentrating ring, thereby generating steam.

[0029] A portion of the energy-concentrating ring is recessed inward, forming a concave section on the side of the ring, within which the float is housed. This concave section provides installation space for the float, preventing it from protruding beyond the width of the energy-concentrating ring and reducing the space occupied by the energy-concentrating ring and float within the water tank. Furthermore, this structure eliminates the need for additional piping connecting the water tank and the energy-concentrating ring, simplifying the base assembly structure.

[0030] In some technical solutions, optionally, the guide channel extends towards the heat pipe connector of the heating plate along the extension direction of the guide channel.

[0031] To prevent boiling water above the heating plate from affecting the seal between the float and the connector, the heat pipe joint of the heating plate is placed below the float. The temperature at the heat pipe joint is relatively low in the heating plate, and the heat pipe joint is equivalent to the cold end of the heating plate. The cold end of the heating plate is placed below the float, thereby reducing the impact of boiling water on the stability of the float.

[0032] In some technical solutions, the base assembly may optionally include: an extension wall connected to the bottom wall of the water tank, a float located between the energy-concentrating ring and the extension wall along the circumference of the heating plate, a portion of the heating plate being sealed to the energy-concentrating ring, and another portion of the heating plate being sealed to the extension wall.

[0033] An extension wall is installed below the bottom wall of the water tank, forming a guide channel between the energy-concentrating ring and the extension wall. The energy-concentrating ring and a portion of the heating element are sealed together to prevent water from the steam generation chamber from flowing out between them. Where the energy-concentrating ring has a recessed portion that cannot be sealed to the heating element, the extension wall can be used to seal it to another portion of the heating element, preventing water from the steam generation chamber from flowing out between the extension wall and the heating element.

[0034] In some technical solutions, optionally, a guide channel is formed between the extended wall and the recess, and a water inlet channel is formed between the bottom of the recess and the heating plate, and the guide channel is connected to the steam generating chamber through the water inlet channel.

[0035] The extended wall and the recessed part are arranged opposite to each other, forming a guide channel between the extended wall and the recessed part. Utilizing the space between the extended wall and the recessed part as a guide channel helps to improve the space utilization rate within the base assembly.

[0036] A gap is left between the bottom of the concave part and the heating plate. This gap serves as a water inlet channel, and the guide channel and the steam generating chamber are connected through the water inlet channel.

[0037] Secondly, this utility model proposes a cooking device, including: a steamer assembly, the steamer assembly having a cooking cavity inside; and a base assembly as in the first aspect, the steamer assembly being disposed on the base assembly.

[0038] Additional aspects and advantages of this invention will become apparent in the following description or may be learned by practice of this invention. Attached Figure Description

[0039] 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:

[0040] Figure 1 shows an exploded view of the cooking device in an embodiment of the present invention;

[0041] Figure 2 shows an exploded view of the base assembly in an embodiment of the present invention;

[0042] Figure 3 shows a schematic diagram of the base assembly in an embodiment of the present invention;

[0043] Figure 4 shows an enlarged view of point A in Figure 4;

[0044] Figure 5 shows a schematic diagram of the structure of the water tank and the energy-concentrating ring in an embodiment of this utility model.

[0045] Figure label:

[0046] 100 Base assembly, 110 Base, 120 Water tank, 121 Connecting port, 122 Guide channel, 123 Bottom wall, 124 Extension wall, 130 Steam generating assembly, 131 Steam generating chamber, 133 Heating plate, 134 Energy-concentrating ring, 135 Recess, 136 Heat pipe connector, 137 Water inlet channel, 140 Float, 150 Sealing ring, 151 Connecting channel, 160 Control / display panel, 170 Power board, 180 Bottom cover, 190 Temperature sensor, 200 Cooking equipment, 210 Steamer assembly, 211 Cooking chamber, 212 Steamer, 213 Steaming plate, 214 Pot lid. Detailed Implementation

[0047] 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.

[0048] 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.

[0049] The base assembly and cooking device according to some embodiments of the present invention are described below with reference to Figures 1 to 5.

[0050] Referring to Figures 1, 2, 3, 4, and 5, in some embodiments of this utility model, a base assembly 100 is proposed. The base assembly 100 is used for a cooking device 200, which includes a cooking chamber 211. The base assembly 100 includes a base 110, a water tank 120, a steam generating assembly 130, and a float 140. The water tank 120 is located inside the base 110 and has a communication port 121. At least a portion of the steam generating assembly 130 is located inside the water tank 120 and has a steam generating chamber 131. The steam generating assembly 130 is used to supply steam to the cooking chamber 211. When the communication port 121 is open, the water tank 120 is connected to the steam generating chamber 131. The float 140 is connected to the water tank 120. The sum of the pressure exerted on the float 140 by the water in the water tank 120 and the weight of the float 140 is F1. The buoyancy exerted on the float 140 by the water in the steam generating chamber 131 is F2. When F1 is greater than F2, the float 140 opens the communication port 121. When F2 is greater than F1, the float 140 closes the communication port 121.

[0051] At least a portion of the steam generating assembly 130 is located within the water tank 120, which can replenish water to the steam generating chamber 131. When the steam generating assembly 130 is in operation, it generates steam, which is discharged from the steam generating chamber 131 to provide steam to the cooking chamber 211. The steam heats the food, thus achieving the cooking function.

[0052] A connecting port 121 is machined into the water tank 120. When the connecting port 121 is open, the water tank 120 is connected to the steam generating chamber 131, and water in the water tank 120 flows into the steam generating chamber 131. When the connecting port 121 is closed, water in the water tank 120 no longer flows into the steam generating chamber 131. A float 140 is installed on the water tank 120, and the float 140 can slide relative to the water tank 120. In this design, the connecting port 121 is opened or closed by the float 140.

[0053] The forces acting on float 140 include: the pressure exerted on float 140 by the water in water tank 120, the weight of float 140 itself, and the buoyancy exerted on float 140 by the water in steam generating chamber 131. These forces will be referred to as pressure, weight, and buoyancy. During the evaporation of water in steam generating assembly 130, the water volume in steam generating chamber 131 decreases, and the buoyancy on float 140 decreases. When the sum of pressure and weight exceeds the buoyancy, float 140 is pushed towards steam generating chamber 131. At this time, connection port 121 opens, and water from water tank 120 enters steam generating chamber 131. As the water volume in steam generating chamber 131 increases, when the buoyancy exceeds the sum of pressure and weight, float 140 closes connection port 121, and no more water enters steam generating chamber 131. By using the above method, a fixed amount of water can be maintained in the steam generating chamber 131, the amount of water heated by the steam generating component 130 can remain basically constant, the steam generation rate can remain basically constant, and the degree of cooking of the same ingredient within the same cooking time can be basically the same, which is beneficial to improving the cooking effect of the ingredient.

[0054] It should be noted that when F2 = F1, the connection port 121 may be in an open state or a closed state. For example, when the float 140 opens the connection port 121, F2 = F1, the float 140 may remain in a balanced state where it neither goes up nor down.

[0055] Referring to Figures 3 and 4, in some embodiments, optionally, a guide channel 122 is provided on the water tank 120, the steam generating chamber 131 and the connecting port 121 are connected through the guide channel 122, and the float 140 can slide within the guide channel 122 to open or close the connecting port 121.

[0056] The water tank 120 has a guide channel 122 machined on it. The float 140 is located inside the guide channel 122 and can slide within the guide channel 122. When the sum of pressure and gravity is greater than buoyancy, the float 140 is pushed towards the steam generating chamber 131 within the guide channel 122, at which time the connecting port 121 opens. When buoyancy is greater than the sum of pressure and gravity, the float 140 moves towards the connecting port 121 within the guide channel 122, and the float 140 closes the connecting port 121.

[0057] The guide channel 122 guides the float 140, enabling the float 140 to move back and forth along a fixed path, preventing the float 140 from shifting position relative to the connection port 121, and ensuring that the float 140 can stably close the connection port 121.

[0058] This embodiment provides a structural solution that eliminates the influence of different water tank volumes on temperature detection. The purpose is to control the amount of water heated by the steam generating component 130 to remain constant or change only slightly, thereby improving the accuracy and reliability of temperature detection. Simultaneously, it can also shorten the time for steam to be produced and for the cooking chamber 211 to become saturated with steam, further improving the efficiency of the cooking equipment 200.

[0059] Referring to Figures 3 and 4, in some embodiments, optionally, the communication port 121 is located on the bottom wall 123 of the water tank 120, and the guide channel 122 is located at the bottom of the communication port 121.

[0060] The connecting port 121 is located on the bottom wall 123 of the water tank 120. When the connecting port 121 is open, even if the water level in the water tank 120 is low, water can still be added to the steam generating chamber 131, reducing the risk of dry burning in the steam generating chamber 131. The guide channel 122 is located at the bottom of the connecting port 121, so as long as there is still a small amount of water on the bottom wall 123 of the water tank 120, water can be added to the steam generating chamber 131, again to reduce the risk of dry burning in the steam generating chamber 131.

[0061] In some embodiments, optionally, a portion of the steam generating assembly 130 is below the bottom wall 123, and / or the water level within the steam generating assembly 130 is below the bottom wall 123.

[0062] A portion of the steam generating assembly 130 is below the bottom wall 123. When a small amount of water is injected into the steam generating assembly 130, the float 140 will float up and close the communication port 121, so that a small amount of water is kept in the steam generating chamber 131, thereby increasing the steam generation rate.

[0063] When water from the water tank 120 is added to the steam generating chamber 131, the water level in the steam generating chamber 131 is lower than the bottom wall 123 of the water tank 120. When the water in the steam generating assembly 130 decreases, the float 140 can quickly move to replenish water in the steam generating chamber 131 in time, thus avoiding the problem of dry burning in the steam generating chamber 131.

[0064] In some embodiments, the float 140 is optionally positioned below the bottom wall 123, and the float 140 is spaced apart from the steam generating chamber 131.

[0065] In this embodiment, the float 140 is spaced apart from the steam generating chamber 131. Therefore, the float 140 is located outside the steam generating chamber 131. When the steam generating assembly 130 is working, the water inside the steam generating assembly 130 boils. The distance between the float 140 and the steam generating chamber 131 reduces the influence of the steam generating chamber 131 on the movement of the float 140, thus improving the control accuracy of the water volume in the steam generating chamber 131. The float 140 is located below the bottom wall 123 of the water tank 120, which facilitates that all the water in the water tank 120 can enter the steam generating chamber 131.

[0066] Referring to Figures 3 and 4, in some embodiments, the base assembly 100 may optionally include a sealing ring 150, which passes through the communication port 121 and has a communication channel 151 through which the water tank 120 and the steam generating chamber 131 are connected. When the float 140 closes the communication port 121, the circumferential direction of the float 140 (indicated by the arrow at C1 in Figure 2) is in contact with the sealing ring 150.

[0067] A sealing ring 150 is installed inside the connecting port 121. When the float 140 closes the connecting port 121, the float 140 abuts against the sealing ring 150. Since the sealing ring 150 is relatively soft, the float 140 and the sealing ring 150 can fit tightly together, and there is little chance of gaps between the float 140 and the sealing ring 150. This allows the float 140 to tightly close the connecting port 121, preventing water from the water tank 120 from being replenished into the steam generating chamber 131 when the connecting port 121 is closed, and ensuring that the steam generating component 130 only heats a fixed amount of water.

[0068] Referring to Figures 3 and 4, in some embodiments, optionally, the end of the connecting channel 151 facing the float 140 is flared, and when the float 140 closes the connecting port 121, the float 140 fits against the inner wall of the connecting channel 151.

[0069] One end of the connecting channel 151 faces the float 140, and the end of the connecting channel 151 facing the float 140 has a flared structure. When the float 140 moves toward the connecting port 121, a part of the float 140 can extend into the connecting channel 151, so that a part of the float 140 fits against the inner wall of the connecting channel 151. In this way, when the float 140 closes the connecting port 121, the float 140 and the sealing ring 150 have a larger contact area, and the float 140 and the sealing ring 150 fit more tightly, improving the sealing performance between the float 140 and the sealing ring 150.

[0070] Referring to Figures 3 and 4, in some embodiments, optionally, the sealing ring 150 is clamped and fixed to the bottom wall 123 of the water tank 120 along the circumference of the sealing ring 150 (indicated by the arrow at C2 in Figure 2).

[0071] The sealing ring 150 has a ring structure and is circumferentially fixed on the bottom wall 123 of the water tank 120, thereby completing the installation of the sealing ring 150. The installation process of the sealing ring 150 does not require additional parts, which simplifies the structure and improves the ease of installation and removal of the sealing ring 150.

[0072] The end of the sealing ring 150 facing the float 140 is flared, so that a portion of the sealing ring 150 can fit against the bottom of the bottom wall 123. Similarly, the end of the sealing ring 150 away from the float 140 also needs to be flared, so that a portion of the sealing ring 150 fits against the top of the bottom wall 123, thereby clamping the sealing ring 150 onto the bottom wall 123 of the water tank 120.

[0073] When the sealing ring 150 is flared on the side away from the float 140, the connecting channel 151 is not easily blocked by impurities in the water tank 120, and the water in the water tank 120 can flow smoothly to the steam generating chamber 131.

[0074] Referring to Figures 3 and 4, in some embodiments, optionally, the steam generating assembly 130 includes: a heating plate 133 and a concentrating ring 134. The heating plate 133 is located inside the base 110, at least a portion of the concentrating ring 134 extends into the water tank 120, the heating plate 133 is located at the bottom of the concentrating ring 134, the concentrating ring 134 is provided with a steam generating chamber 131, and the side of the concentrating ring 134 is provided with a recess 135, and the float 140 is accommodated in the recess 135.

[0075] The energy-concentrating ring 134 has a ring structure and a steam generating chamber 131 is provided inside the energy-concentrating ring 134. The heating plate 133 is located at the bottom of the energy-concentrating ring 134. When the heating plate 133 is running, the heating plate 133 heats the water inside the energy-concentrating ring 134, thereby generating steam.

[0076] A portion of the side of the energy-concentrating ring 134 is recessed inward, forming a concave portion 135 on the side of the energy-concentrating ring 134, within which the float 140 is accommodated. The concave portion 135 provides installation space for the float 140, preventing the float 140 from protruding from the side of the energy-concentrating ring 134 along its width direction, thus reducing the space occupied by the energy-concentrating ring 134 and the float 140 inside the water tank 120. Furthermore, this structure eliminates the need for additional pipes connecting the water tank 120 and the energy-concentrating ring 134, simplifying the structure of the base assembly 100.

[0077] Referring to Figures 3 and 4, in some embodiments, optionally, the guide channel 122 extends toward the heat pipe connector 136 of the heating plate 133 along the extension direction of the guide channel 122 (indicated by the arrow at H in Figure 4).

[0078] To prevent boiling water above the heating plate 133 from affecting the seal between the float 140 and the communication port 121, the heat pipe connector 136 of the heating plate 133 is positioned below the float 140. Within the heating plate 133, the temperature at the location of the heat pipe connector 136 is relatively low. The heat pipe connector 136 is equivalent to the cold end of the heating plate 133. Since the cold end of the heating plate 133 is positioned below the float 140, the impact of boiling water on the stability of the float 140 is reduced.

[0079] The guide channel 122 faces the heating plate 133. Water in the water tank 120 flows directly towards the heating plate 133 after passing through the connecting port 121. This flow of water towards the heating plate 133 allows the water to be heated quickly. The heating plate 133 is located below the float 140, indicating that the size of the heating plate 133 is large enough to provide a large contact area between the water in the steam generating chamber 131 and the heating plate 133, which helps to increase the speed at which the steam generating assembly 130 generates steam.

[0080] Referring to Figures 3 and 4, in some embodiments, the base assembly 100 may optionally include: an extension wall 124 connected to the bottom wall 123 of the water tank 120, a float 140 located between the energy-concentrating ring 134 and the extension wall 124 along the circumference of the heating plate 133, a portion of the heating plate 133 being sealed to the energy-concentrating ring 134, and another portion of the heating plate 133 being sealed to the extension wall 124.

[0081] An extension wall 124 is provided below the bottom wall 123 of the water tank 120, forming a guide channel 122 between the energy-concentrating ring 134 and the extension wall 124. The energy-concentrating ring 134 and a portion of the heating plate 133 are sealed together to prevent water in the steam generating chamber 131 from flowing out between the energy-concentrating ring 134 and the heating plate 133. Where the energy-concentrating ring 134 has a recessed portion 135, it cannot be sealed to the heating plate 133. Therefore, it can be sealed to another portion of the heating plate 133 through the extension wall 124, preventing water in the steam generating chamber 131 from flowing out between the extension wall 124 and the heating plate 133.

[0082] Referring to Figures 3 and 4, in some embodiments, optionally, a guide channel 122 is formed between the extension wall 124 and the recess 135, and a water inlet channel 137 is formed between the bottom of the recess 135 and the heating plate 133, and the guide channel 122 is connected to the steam generating chamber through the water inlet channel 137.

[0083] The extension wall 124 and the recess 135 are arranged opposite to each other, and a guide channel 122 is formed between the extension wall 124 and the recess 135. Utilizing the space between the extension wall 124 and the recess 135 as the guide channel 122 is beneficial to improving the space utilization rate within the base assembly 100.

[0084] A gap is left between the bottom of the recessed portion 135 and the heating plate 133. This gap serves as a water inlet channel 137, and the guide channel 122 and the steam generating chamber are connected through the water inlet channel 137.

[0085] In one possible application, the base assembly 100 further includes a control / display board 160, a power board 170, and a bottom cover 180. The control / display board 160 is used to host the control program and display the interface. The power board 170 is used to supply power and connect to an external power source. The main frame of the pot body mounts the circuit board, heating plate 133, and temperature sensor 190, etc., and forms a water tank 120 after assembly with the heating plate 133. The temperature sensor 190 detects the ambient temperature and the cooking cavity 211 temperature in real time. The bottom cover 180 is used to protect the heating plate 133 and dissipate heat from the heating plate 133 and the power board 170.

[0086] The energy-concentrating ring 134 has a baffle structure above the heating plate 133, which allows the heating plate 133 to heat only the water within the baffle structure, thus improving the efficiency of water heating.

[0087] A guide channel 122 is designed between the enclosure of the water tank 120 and the energy-concentrating ring 134. A float 140 is installed on the guide channel 122, and a connecting port 121 is located directly above the float 140. The float 140 floats as the water level in the energy-concentrating ring 134 rises. When the water level in the energy-concentrating ring 134 rises to the design water level, the float 140 blocks the connecting port 121, thereby stopping water intake (a sealing ring 150 can be installed in the connecting port 121 to improve sealing). When the water level in the energy-concentrating ring 134 drops, the float 140 drops synchronously, the connecting port 121 opens, and water enters the energy-concentrating ring 134 from the water tank 120.

[0088] The buoyancy force on float 140 is: F_buoyancy = ρ × g × V, where ρ is the fluid density, g is the acceleration due to gravity, and V is the volume of float 140.

[0089] The weight of float 140: F_gravity = mg, where m represents the mass of float 140 and g represents the gravitational acceleration.

[0090] Pressure at the connection port 121: P_water_pressure = ρ × g × h, F_water = P_water_pressure × A, where ρ is the fluid density, g represents the acceleration due to gravity, h is the highest water level in the water tank 120, A is the cross-sectional area of ​​the connection port 121, and F_water is the force exerted by the water on the float 140.

[0091] In summary, the buoyancy design of float 140 must satisfy: F_buoyancy > F_gravity + F_water. By fixing the water level inside the energy-concentrating ring 134, the influence of water level on the accuracy of temperature detection can be eliminated.

[0092] When the water is heated to boiling, in order to avoid the boiling water above the hot plate affecting the sealing of the float 140 to the communication port 121, the cold end of the heating plate 133 is placed below the float 140, thereby reducing the impact of water boiling on the stability of the float 140.

[0093] In Figure 3, the arrow at D1 indicates the highest water level inside the energy-concentrating ring 134, and the arrow at D2 indicates the highest water level inside the water tank 120.

[0094] In an embodiment of this utility model, a cooking device 200 is proposed, including: a steamer assembly 210 and a base assembly 100 as described in any of the above embodiments. The steamer assembly 210 is provided with a cooking cavity 211 and is disposed on the base assembly 100.

[0095] In one possible application, the steamer assembly 210 includes: a steamer 212, a steaming plate 213, and a pot lid 214. The steamer 212 is used to place food, the steaming plate 213 is placed on the steamer 212, and food can also be placed on the steaming plate 213. The pot lid 214 covers the steamer 212. The space between the steaming plate 213 and the steamer 212, as well as the space between the steaming plate 213 and the pot lid 214, together serve as a cooking cavity 211.

[0096] 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.

[0097] 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.

[0098] 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 base assembly, characterized in that, The base assembly is used for a cooking device, the cooking device including a cooking cavity. The base assembly includes: a base; a water tank located inside the base, the water tank having a communication port; a steam generating assembly, at least a portion of which is located inside the water tank, the steam generating assembly having a steam generating chamber, the steam generating assembly being used to supply steam to the cooking cavity, the water tank communicating with the steam generating chamber when the communication port is open; and a float connected to the water tank, the sum of the pressure exerted on the float by the water in the water tank and the weight of the float being F1, the buoyancy exerted on the float by the water in the steam generating chamber being F2, the float opening the communication port when F1 is greater than F2, and the float closing the communication port when F2 is greater than F1.

2. The base assembly according to claim 1, characterized in that, The water tank is provided with a guide channel, and the steam generating chamber and the connecting port are connected through the guide channel. The float can slide within the guide channel to open or close the connecting port.

3. The base assembly according to claim 2, characterized in that, The connecting port is located on the bottom wall of the water tank, and the guide channel is located at the bottom of the connecting port.

4. The base assembly according to claim 3, characterized in that, A portion of the steam generating assembly is below the bottom wall, and / or the water level within the steam generating assembly is below the bottom wall.

5. The base assembly according to claim 3, characterized in that, The float is lower than the bottom wall, and the float is spaced apart from the steam generating chamber.

6. The base assembly according to any one of claims 1 to 5, characterized in that, The base assembly further includes a sealing ring, which passes through the communication port. The sealing ring has a communication channel through which the water tank and the steam generating chamber are connected. When the float closes the communication port, the circumferential direction of the float is in contact with the sealing ring.

7. The base assembly according to claim 6, characterized in that, The end of the connecting channel facing the float is flared, and when the float closes the connecting opening, the float fits against the inner wall of the connecting channel.

8. The base assembly according to claim 6, characterized in that, The sealing ring is clamped and fixed to the bottom wall of the water tank along its circumference.

9. The base assembly according to claim 2, characterized in that, The steam generating assembly includes: a heating plate located inside the base; an energy-concentrating ring, at least a portion of which extends into the water tank, the heating plate located at the bottom of the energy-concentrating ring, the energy-concentrating ring having a steam generating chamber inside, and the side of the energy-concentrating ring having a concave portion, the float being accommodated in the concave portion.

10. The base assembly according to claim 9, characterized in that, Along the extension direction of the guide channel, the guide channel faces the heat pipe connector of the heating plate.

11. The base assembly according to claim 9, characterized in that, The base assembly further includes: an extension wall connected to the bottom wall of the water tank; a float located between the energy-concentrating ring and the extension wall along the circumference of the heating plate; a portion of the heating plate being sealed to the energy-concentrating ring; and another portion of the heating plate being sealed to the extension wall.

12. The base assembly according to claim 11, characterized in that, The guide channel is formed between the extended wall and the concave portion, and a water inlet channel is formed between the bottom of the concave portion and the heating plate. The guide channel is connected to the steam generating chamber through the water inlet channel.

13. A cooking appliance, characterized in that, include: A steamer assembly having a cooking chamber therein; a base assembly as described in any one of claims 1 to 12, wherein the steamer assembly is disposed on the base assembly.

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