Electric cooker

Abstract

The utility model discloses an electric cooker, and relates to the technical field of electric cookers, the electric cooker comprises a cooker body assembly, a cover body assembly, a water supply assembly and a composite hot plate, the cooker body assembly is provided with a cooking cavity; the cover body assembly is arranged at an opening of the cooking cavity in an opening and closing manner; the composite hot plate comprises a heating plate, an electric heating pipe and a water guide pipe, the electric heating pipe and the water guide pipe are embedded in the heating plate, and heat generated by the electric heating pipe can be transmitted to the water guide pipe to heat water flowing through the water guide pipe; the water supply assembly comprises a water tank, a first water outlet pipe and a second water outlet pipe, the first water outlet pipe communicates with the water tank and the cooking cavity, the second water outlet pipe communicates with the water tank and a water inlet of the water guide pipe, and an air outlet of the water guide pipe communicates with the cooking cavity. According to the technical scheme, the use convenience and flexibility of the electric cooker can be improved.

Description

Technical Field

[0001] This utility model relates to the field of electric rice cooker technology, and in particular to an electric rice cooker. Background Technology

[0002] Currently, most rice cookers on the market, such as regular rice cookers and steam rice cookers, cook with the lid closed. However, for ingredients like dumplings, which require adding cold water to achieve better cooking results, the lid needs to be opened to add water, making the process inconvenient. Utility Model Content

[0003] The main purpose of this utility model is to provide a rice cooker that improves the flexibility and convenience of its use.

[0004] To achieve the above objectives, the rice cooker proposed in this utility model includes:

[0005] A pot body assembly, wherein the pot body assembly is provided with a cooking cavity;

[0006] A cover assembly, which is openable and closable at the opening of the cooking cavity;

[0007] A composite heating plate includes a heating plate, an electric heating element, and a water pipe. The electric heating element and the water pipe are embedded in the heating plate. The heat generated by the electric heating element can be transferred to the water pipe to heat the water flowing through the water pipe.

[0008] A water supply assembly includes a water tank, a first water outlet pipe, and a second water outlet pipe. The first water outlet pipe connects the water tank and the cooking cavity, the second water outlet pipe connects the water tank and the inlet of the water guide pipe, and the air outlet of the water guide pipe is connected to the cooking cavity.

[0009] In one embodiment, the water supply assembly further includes:

[0010] A water pump, wherein the inlet of the water pump is connected to the water tank; and

[0011] A three-way valve, wherein the inlet of the three-way valve is connected to the outlet of the water pump, one outlet of the three-way valve is connected to the inlet of the first outlet pipe, and the other outlet of the three-way valve is connected to the inlet of the second outlet pipe;

[0012] The three-way valve is used to control the water tank to selectively supply water to either the first outlet pipe or the second outlet pipe.

[0013] In one embodiment, the pot assembly includes a pot body and an inner pot. The pot body has an installation space, the inner pot is located in the installation space, the inner pot has the cooking cavity, the composite heating plate is located below the inner pot, and the heat generated by the electric heating tube can be transferred to the inner pot.

[0014] In one embodiment, the lid assembly is provided with a flow guiding channel, and the outlet of the flow guiding channel is provided with a nozzle exposed on one side surface of the lid assembly. The first water outlet pipe and the water guiding pipe are connected to the inlet of the flow guiding channel at least when the rice cooker is in the closed state.

[0015] In one embodiment, the rice cooker further includes an adapter pipe, the inlet of which, the outlet of the first water outlet pipe, and the outlet of the water guide pipe are connected to the same tee, and the other end of which is used to communicate with the guide channel.

[0016] The rice cooker also includes a one-way valve, which is located between the water pipe and the three-way valve, and the one-way valve allows unidirectional flow along the direction from the water pipe to the three-way valve.

[0017] In one embodiment, the adapter pipe is disposed in the pot body assembly, and the surface of the pot body assembly facing the lid assembly is provided with a first docking structure communicating with the adapter pipe;

[0018] The surface of the lid assembly facing the cooker assembly is provided with a second docking structure that communicates with the inlet of the flow channel. When the rice cooker is in the closed state, the first docking structure and the second docking structure are connected.

[0019] In one embodiment, the first docking structure includes a valve seat and a valve core. The valve seat has a valve cavity communicating with the adapter pipe and a docking interface communicating with the valve cavity and exposed on the top surface of the pot body. The valve core is movably disposed in the valve cavity to close or open the docking interface.

[0020] In one embodiment, the first docking structure further includes an elastic element disposed in the valve cavity, the elastic element acting between the valve core and the valve seat;

[0021] When the rice cooker is in the open state, the elastic element provides elastic force to the valve core, causing the valve core to close the connecting port. When the rice cooker is in the closed state, the second connecting structure supports the valve core to overcome the elastic force of the elastic element, causing the connecting port to open and communicate with the valve cavity.

[0022] In one embodiment, the lid assembly is hinged to the pot body assembly, and the adapter pipe is arranged from the hinge position of the pot body assembly and the lid assembly and communicates with the flow channel.

[0023] In one embodiment, the sidewall of the nozzle is provided with at least two nozzle outlets arranged circumferentially thereon.

[0024] In one embodiment, the rice cooker includes a first temperature sensor, which is located on the bottom outer side of the cooking cavity;

[0025] And / or, the rice cooker includes a second temperature sensor, which is disposed on the lid assembly;

[0026] And / or, the water tank is located on the side of the cooker assembly and connected to the cooker assembly.

[0027] The technical solution of this utility model involves setting up a water supply component and a composite heating plate in the rice cooker. The water supply component can add cold water directly to the cooking cavity of the rice cooker through a first water outlet pipe, or supply water to the composite heating plate through a second water outlet pipe. The composite heating plate heats the water to form hot water or steam, which is then supplied to the cooking cavity. This design eliminates the need to open the lid to add water during the cooking process, improving the convenience of using the rice cooker. It also meets different cooking needs, such as adding cold or hot water or using steam cooking, increasing the flexibility of the rice cooker. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A structural diagram of an embodiment of the rice cooker provided by this utility model;

[0030] Figure 2 for Figure 1 A picture of the open lid of a Chinese electric rice cooker;

[0031] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0032] Figure 4 This is a water circuit connection diagram for the rice cooker of this utility model;

[0033] Figure 5 for Figure 1 A cross-sectional view of a Chinese electric rice cooker;

[0034] Figure 6 for Figure 1 A cross-sectional view of a Chinese electric rice cooker at the nozzle position;

[0035] Figure 7 for Figure 1A cross-sectional view of the electric rice cooker at the positions of the first and second docking structures;

[0036] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0037] Figure 9 for Figure 1 A diagram showing the bottom of a rice cooker after removing the bottom cover;

[0038] Figure 10 Structural diagram of the inner pot and composite heating plate in the rice cooker provided by this utility model;

[0039] Figure 11 for Figure 10 A structural diagram of the water pipes and electric heating elements of the composite heating plate.

[0040] Explanation of icon numbers:

[0041] 100. Rice cooker; 1. Cooker body assembly; 11. Cooker body; 111. Installation space; 112. Connecting interface; 113. Bottom cover; 114. Outer shell; 115. Inner shell; 12. Inner pot; 121. Cooking cavity; 2. Lid assembly; 21. Flow channel; 22. Nozzle; 23. Second docking structure; 231. Flow channel; 24. Sealing ring; 3. Water supply assembly; 31. Water tank; 32. First water outlet pipe; 33. Second water outlet pipe; 34. Water pump; 35. Three-way valve; 4. Composite heating plate; 41. Water guide pipe; 42. Electric heating element; 43. Heating plate; 5. Adapter pipe; 51. T-junction; 52. First docking structure; 521. Valve seat; 5211. Valve cavity; 522. Elastic element; 523. Valve core; 6. First temperature sensor; 7. Second temperature sensor; 8. One-way valve.

[0042] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0044] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0046] Currently, most rice cookers on the market, such as regular rice cookers and steam rice cookers, cook with the lid closed. However, for ingredients like dumplings, which require adding cold water to achieve better cooking results, the lid needs to be opened to add water, making the process inconvenient.

[0047] Based on the above problems, this utility model proposes a rice cooker 100.

[0048] See also Figures 1 to 4 In one embodiment of this utility model, the rice cooker 100 includes a cooker body assembly 1, a lid assembly 2, a water supply assembly 3, and a composite heating plate 4. The cooker body assembly 1 is provided with a cooking cavity 121. The lid assembly 2 is openable and closable at the opening of the cooking cavity 121. The composite heating plate 4 includes a water guide pipe 41, an electric heating tube 42, and a heating plate 43. The electric heating tube 42 and the water guide pipe 41 are embedded in the heating plate 43, and the heat generated by the electric heating tube 42 can be transferred to the water guide pipe 41. The water supply assembly 3 includes a water tank 31, a first water outlet pipe 32, and a second water outlet pipe 33. The first water outlet pipe 32 connects the water tank 31 and the cooking cavity 121, and the second water outlet pipe 33 connects the water tank 31 and the water inlet of the water guide pipe. The steam outlet of the water guide pipe 41 is connected to the cooking cavity 121.

[0049] In this embodiment of the application, the rice cooker 100 includes a cooker body assembly 1 and a lid assembly 2. The cooker body assembly 1 is provided with a cooking cavity 121 with a top opening. The lid assembly 2 is rotatably connected to the cooker body assembly 1, so that the lid assembly 2 can be flipped up and down to open or close the cooking cavity 121. Optionally, the lid assembly 2 can also be detachably connected to the cooker body assembly 1. The rice cooker 100 also includes a water supply component 3 and a composite heating plate 4. The water supply component 3 is provided with a water tank 31 and a first water outlet pipe 32 and a second water outlet pipe 33 connected to the water tank 31. The water supply component 3 can supply water from the water tank 31 to the first water outlet pipe 32 and the second water outlet pipe 33. Optionally, the water tank 31 can supply water to either the first water outlet pipe 32 or the second water outlet pipe 33. For example, the first water outlet pipe 32 and the second water outlet pipe 33 can be connected to the water tank 31 through a three-way valve 35. By controlling the opening state of the three-way valve 35, the first water outlet pipe 32 or the second water outlet pipe 33 can be connected to the water tank 31. Alternatively, the first water outlet pipe 32 and the second water outlet pipe 33 can be connected to the water tank 31 respectively. On / off valves or water pumps 34 can be provided on the first water outlet pipe 32 and the second water outlet pipe 33 respectively, so as to control the connection state between the first water outlet pipe 32 and the second water outlet pipe 33 and the water tank 31 through the corresponding on / off valves or water pumps 34. In some embodiments, the water tank 31 can also supply water to the first outlet pipe 32 and the second outlet pipe 33 simultaneously, without specific limitations.

[0050] The composite heating plate 4 includes a water pipe 41, an electric heating element 42, and a heating plate 43. The electric heating element 42 and the water pipe 41 are both mounted on the heating plate 43 to form a heating module 41, facilitating the assembly and disassembly of the electric heating element 42 and the water pipe 41 as a whole. The heating plate 43 can be a circular, square, or other shape, with an internal cavity for mounting the electric heating element 42, the water pipe 41, and other structures. To ensure the structural strength, high-temperature resistance, and thermal conductivity of the heating plate 43, it can be made of sheet metal. In practical applications, the heating plate 43 can be a one-piece structure or a separate structure consisting of two, three, or other structural components. Of course, to facilitate the installation of the electric heating element 42, the water pipe 41, and other structures, the heating plate 43 is preferably a separate structure with two upper and lower covers. The water pipe 41 is connected to the second water outlet pipe 33 of the water supply assembly 3, allowing water from the water tank 31 to flow into the water pipe 41 through the second water outlet pipe 33. The heating element 42 is used to heat the water pipe 41. When the water supply assembly 3 supplies water to the water pipe 41 through the second water outlet pipe 33, the heating element 42 can heat the water in the water pipe 41, thereby raising the water temperature to form hot water or generating steam; thus introducing hot water or steam into the cooking cavity 121. Optionally, the heating element 42 in the composite heating plate 4 can also be used to heat the cooking cavity 121, eliminating the need for an additional heating device to heat the cooking cavity 121.

[0051] In practical applications, the heating element 42 can be entirely embedded inside the heating plate 43, or a portion of the heating element 42 can be embedded inside the heating plate 43. For example, the heating portion of the heating element 42 can be embedded in the heating plate 43, while the energized terminals of the heating element 42 extend outside the heating plate 43 to facilitate connection between the energized terminals and the energized structure. Similarly, the water pipe 41 can be entirely embedded inside the heating plate 43, or a portion of the water pipe 41 can be embedded inside the heating plate 43. For example, the inlet and outlet ends of the water pipe 41 used to connect the second water outlet pipe 33 and the adapter pipe 5 can extend outside the heating plate 43 to facilitate connection between the inlet and outlet ends and the second water outlet pipe 33 and the adapter pipe 5.

[0052] When using the rice cooker 100, the water supply component 3 can directly supply relatively cold water from the water tank 31 to the cooking cavity 121 through the first water outlet pipe 32, thus meeting the cooking method that requires adding cold water to the cooking cavity 121. Alternatively, the water supply component 3 can supply water to the second water outlet pipe 33, which, after being heated by the composite heating plate 4, forms hot water or generates steam, thereby allowing hot water to be added to the cooking cavity 121 or steam cooking to be used to cook the food in the cooking cavity 121.

[0053] Optionally, the first water outlet pipe 32 and the water guide pipe 41 can be connected to the cooking cavity 121 in the pot body assembly 1. Alternatively, in the following embodiment, a flow guide channel 21 can be provided on the lid assembly 2 so that the first water outlet pipe 32 and the water guide pipe 41 are connected to the flow guide channel 21, allowing cold water, hot water, or steam to flow through the lid assembly 2 and enter the cooking cavity 121.

[0054] In other words, the technical solution of this utility model, by setting a water supply component 3 and a composite heating plate 4 in the rice cooker 100, allows the water supply component 3 to directly add cold water to the cooking cavity 121 of the rice cooker 100 through the first water outlet pipe 32, or to supply water to the heating cavity of the composite heating plate 4 through the second water outlet pipe 33. The composite heating plate 4 then heats the water to form hot water or steam, which is supplied to the cooking cavity 121. This arrangement eliminates the need to open the lid to add water during cooking, improving the convenience of using the rice cooker 100; it also meets different cooking needs such as adding cold or hot water or using steam cooking, increasing the flexibility of the rice cooker 100.

[0055] In one embodiment, the water supply assembly 3 further includes a water pump 34 and a three-way valve 35. The inlet of the water pump 34 is connected to the water tank 31, the outlet of the water pump 34 is connected to the inlet of the three-way valve 35, the first outlet pipe 32 is connected to one of the outlets of the three-way valve 35, and the second outlet pipe 33 is connected to the other outlet of the three-way valve 35. The three-way valve 35 is used to control the water tank 31 to supply water to either the first outlet pipe 32 or the second outlet pipe 33.

[0056] The water pump 34 can draw water out of the water tank 31. The three-way valve 35 can be a solenoid valve. By controlling the opening state of the three-way valve 35, the inlet of the three-way valve 35 can be connected to one of the outlets. This allows the water pump 34 to supply water to the first outlet pipe 32 or the second outlet pipe 33 after drawing water out of the water tank 31. This simplifies the structure of the water supply component 3 and eliminates the need to set two water pumps 34 for the first outlet pipe 32 and the second outlet pipe 33 respectively.

[0057] Please see Figure 5 and Figure 6 In one embodiment, the pot body assembly 1 includes a pot body 11 and an inner pot 12. The pot body 11 has an installation space 111, the inner pot 12 is located in the installation space 111, the inner pot 12 has a cooking cavity 121, the composite heating plate 4 is located below the inner pot 12, and the heat generated by the electric heating tube 32 can be transferred to the inner pot 12.

[0058] In this embodiment, the pot assembly 1 includes a pot body 11 and an inner pot 12. The inner pot 12 is disposed in the installation space 111 provided in the pot body 11, and a cooking cavity 121 is formed inside the inner pot 12. Optionally, the inner pot 12 is detachably connected to the pot body 11 so that the inner pot 12 can be removed for cleaning. The installation space 111 of the pot body 11 can also be used to install control devices such as control modules; structures such as the first water outlet pipe 32 and the second water outlet pipe 33 connected to the water tank 31 can also be installed in the installation space 111.

[0059] In this design, the composite heating plate 3 is positioned below the inner pot 12, allowing heat generated by the heating element 32 to be transferred to the inner pot 12. Optionally, the composite heating plate 3 can be in contact with the inner pot 12, and at least one of the heating element 42, water pipe 41, and heating plate 43 can be in contact with the inner pot 12. This arrangement allows heat generated by the composite heating plate 4 to be transferred to the inner pot 12 for heating the cooking cavity 121, thereby heating the food inside the cooking cavity 121, improving heat transfer and utilization efficiency; it also eliminates the need for additional heating devices to heat the cooking cavity separately, simplifying the structure of the rice cooker 100. When using steam cooking, steam is injected into the top of the cooking cavity 121 for heating, and the bottom of the cooking cavity 121 is heated by the heating element 42, ensuring even heating of the cooking cavity 121, which is beneficial for improving cooking efficiency and cooking results.

[0060] In some embodiments, the pot body 11 includes an outer shell 114 and an inner shell 115. The inner shell 115 is located inside the outer shell 114. The space between the outer shell 114 and the inner shell 115 can be used to install the composite heating plate 3 and other components. The inner shell 115 is formed with a receiving space for placing the inner pot 12, allowing the composite heating plate 3 to contact the inner shell 115 and transfer heat to the inner pot 12 through the inner shell 115. Figure 10 As shown, the composite heat plate 3 can be fixed to the inner shell 115.

[0061] In this embodiment, the lid assembly 2 is provided with a flow guiding channel 21, and a nozzle 22 is provided at the outlet end of the flow guiding channel 21, with the nozzle 22 exposed on the surface of the lid assembly 2. Optionally, the lid assembly 2 may be provided with one flow guiding channel 21, and the first water outlet pipe 32 and the water guide pipe 41 may be simultaneously connected to the flow guiding channel 21 through a tee 51 or other structure. The lid assembly 2 may also be provided with two flow guiding channels 21, so that the first water outlet pipe 32 is connected to one of the flow guiding channels 21, and the water guide pipe 41 is connected to the other flow guiding channel 21. Optionally, the first water outlet pipe 32 and the water guide pipe 41 may be connected to the flow guiding channel 21 only when the rice cooker 100 is in the closed state; alternatively, the first water outlet pipe 32 and the water guide pipe 41 may always be connected to the flow guiding channel 21 whether the rice cooker 100 is in the open or closed state.

[0062] The water supply component 3 can be located inside the pot body 11, or it can be located outside the pot body 11, or a portion of the water supply component 3 can be located outside the pot body 11. For example, the water tank 31 of the water supply component 3 can be located outside the pot body 11, and the first water outlet pipe 32, the second water outlet pipe 33, and other structures can be extended to the inside of the pot body 11 to connect with the adapter pipe 5 and the composite heating plate 4. This arrangement eliminates the need for a large installation space 111 in the pot body component 1 for installing the water supply component 3, and facilitates adding water or cleaning the water tank 31 of the water supply component 3.

[0063] Optionally, the bottom of the cooker body assembly 1 is provided with a removable bottom cover 113. By removing the bottom cover 113, the installation space 111 can be exposed, so as to facilitate the disassembly and maintenance of structures such as the composite heating plate 4 and the adapter pipe 5 in the installation space 111.

[0064] Please see Figure 4 and Figure 9 In one embodiment, the rice cooker 100 further includes an adapter pipe 5, one end of which is connected to the outlet of the first water outlet pipe 32 and the water guide pipe 41 at the same tee 51, and the other end of which is used to communicate with the flow channel 21; the composite heating plate 4 further includes a one-way valve 8, which is disposed on the water guide pipe 41 and conducts unidirectional flow along the direction from the water guide pipe 41 to the tee 51.

[0065] In this embodiment, the first water outlet pipe 32 and the water guide pipe 41 are connected to the adapter pipe 5 via the same tee 51, and then connected to the guide channel 21 in the cover assembly 2 via the adapter pipe 5. This arrangement allows the cover assembly 2 to have only one guide channel 21, connecting the adapter pipe 5 to the guide channel 21, thus connecting the first water outlet pipe 32 and the water guide pipe 41 to the same guide channel 21. This eliminates the need for multiple guide channels 21 for separate connections between the first water outlet pipe 32 and the water guide pipe 41, simplifying the structure of the cover assembly 2. Furthermore, a one-way valve 8 is installed on the water guide pipe 41 of the composite heating plate 4. The one-way valve 8 unidirectionally guides the water along the direction from the water guide pipe 41 to the tee 51, ensuring that cold water flowing from the first water outlet pipe 32 to the adapter pipe 5 does not flow into the water guide pipe 41 and cause some of the cold water to be heated, thereby ensuring that cold water is added to the cooking cavity 121.

[0066] Please see Figure 2 and Figure 7 In one embodiment, the surface of the rice cooker assembly 1 facing the lid assembly 2 is provided with a first docking structure 52 that communicates with the adapter pipe 5; the surface of the lid assembly 2 facing the rice cooker assembly 1 is provided with a second docking structure 23 that communicates with the inlet of the guide channel 21. When the rice cooker 100 is in the closed state, the first docking structure 52 and the second docking structure 23 are connected.

[0067] In this embodiment, the first docking structure 52 can be a communication port opened on the top surface of the cooker body 11, or it can be a connecting structure such as a connector or a valve body structure such as a one-way valve 8. Additionally, a second docking structure 23 is provided in the lid assembly 2, and at least a portion of the second docking structure 23 is exposed on the inner surface of the lid assembly 2. When the lid assembly 2 is closed onto the cooker body assembly 1, the first docking structure 52 and the second docking structure 23 are interconnected. The second docking structure 23 can be a through-hole on the surface of the lid assembly 2, or it can be a plug-in connector that can be inserted into the first docking structure 52. This arrangement eliminates the need to expose structures such as the composite heating plate 4 and the adapter pipe 5, thus protecting the composite heating plate 4 and the adapter pipe 5. The connection between the adapter pipe 5 and the flow channel 21 is also relatively convenient, and the appearance of the rice cooker 100 is relatively neat.

[0068] Please see Figure 7 and Figure 8 In one embodiment, the first docking structure 52 includes a valve seat 521 and a valve core 523. The valve seat 521 is provided with a valve cavity 5211 communicating with the adapter pipe 5. The valve seat 521 is provided with a docking interface 112 communicating with the valve cavity 5211 and exposed on the top surface of the pot body 11. The valve core 523 is movably disposed in the valve cavity 5211 to close or open the docking interface 112.

[0069] In this embodiment, the first docking structure 52 can be a solenoid valve, which controls the movement of the valve core 523 through electronic control, thereby closing or opening the docking interface 112 of the valve seat 521. Alternatively, the first docking structure 52 can be provided with an elastic element 522 as in the following embodiment, which drives the valve core 523 to move through the elastic element 522 and the second docking structure 23, thereby closing or opening the docking interface 112 of the valve seat 521. With this arrangement, when the rice cooker 100 is in the open state, the valve core 523 can be controlled to close the docking interface 112, preventing foreign objects from entering the valve cavity 5211 and the adapter pipe 5 through the docking interface 112. It can also prevent cold water, hot water or steam from being discharged from the docking interface 112 when the lid is open.

[0070] Please see Figure 2 and Figure 8 In one embodiment, the first docking structure 52 further includes an elastic element 522, which is disposed in the valve cavity 5211 and acts between the valve core 523 and the valve seat 521. When the rice cooker 100 is in the open state, the elastic element 522 provides elastic force to the valve core 523 to close the docking interface 112. When the rice cooker 100 is in the closed state, the second docking structure 23 holds the valve core 523 to overcome the elastic force of the elastic element 522, so that the docking interface 112 is opened and connected to the valve cavity 5211.

[0071] In this embodiment, the first docking structure 52 is a purely mechanical structure. The valve cavity 5211 of the valve seat 521 has a top wall and a bottom wall that are opposite to each other in the moving direction of the valve core 523. The top wall has a docking interface 112 and the bottom wall has a through hole for connecting to the adapter pipe 5. The elastic element 522 can be a spring. The elastic element 522 is located between the valve core 523 and the bottom wall of the valve cavity 5211. When the rice cooker 100 is in the open state, the elastic element 522 pushes the valve core 523, providing elastic force to the valve core 523 so that the valve core 523 holds the top wall of the valve cavity 5211 to close the docking interface 112. The second docking structure 23 of the lid assembly 2 is provided with a plug-in component. The second docking structure 23 is provided with a flow channel 231 that communicates with the flow channel 21. The side wall of the plug-in component is provided with a through port that communicates with the flow channel 231. When the rice cooker 100 is in the open state, the plug-in component of the second docking structure 23 pushes the valve core 523 away from the docking interface 112, and part of the plug-in component is inserted into the valve cavity 5211. At this time, the valve cavity 5211 and the flow channel 231 of the second docking structure 23 are connected through the through port.

[0072] Please see Figure 2 and Figure 8In one embodiment, the lid assembly 2 further includes a sealing ring 24, which surrounds the second mating structure 23. When the rice cooker 100 is in the closed state, the sealing ring 24 abuts against the surface of the cooker body 11. This arrangement can improve the sealing performance at the connection between the first mating structure 52 and the second mating structure 23, avoiding problems such as steam leakage or water leakage.

[0073] In one embodiment, the lid assembly 2 is hinged to the pot body assembly 1, and the adapter pipe 5 is arranged through the hinge position of the pot body assembly 1 and the lid assembly 2 and communicates with the guide channel 21.

[0074] Specifically, the adapter pipe 5 is an integral pipe that runs through the hinge between the cover assembly 2 and the pot body assembly 1. Part of the adapter pipe 5 is located in the pot body assembly 1 and connects to the outlet of the tee 51, while part of the adapter pipe 5 is located in the cover assembly 2 to form a flow channel 21. The adapter pipe 5 can bend and deform as the cover assembly 2 is opened and closed to ensure that the adapter pipe 5 is always in a conductive state.

[0075] Please see Figure 11 In one embodiment, the heating element 42 extends circumferentially along the bottom surface of the inner pot 12. The heating element 42 can be in the shape of a spiral tube, a straight tube, a wavy tube, or an arc-shaped tube. The annular arrangement of the heating element 42 increases its volume and heating area, which is beneficial for improving heating efficiency. Furthermore, the heating element 42 can evenly heat the bottom of the inner pot 12, ensuring that the food in the cooking cavity 121 is heated evenly, thus improving the cooking effect.

[0076] Please see Figure 11 In one embodiment, the water guide pipe 41 extends circumferentially along the bottom surface of the inner pot 12.

[0077] The water guide pipe 41 can be in the shape of a spiral tube, a straight tube, or an arc-shaped tube, etc., which can make reasonable use of space to increase the volume of the water guide pipe 41, thereby increasing the volume of the heating chamber. Optionally, the electric heating tube 42 is arranged around the bottom surface of the inner pot 12. This arrangement allows the water flowing through the water guide pipe 41 to be continuously heated by the electric heating tube 42, improving heating efficiency.

[0078] In one embodiment, the sidewall of the nozzle 22 is provided with at least two spray outlets arranged circumferentially thereon. The number of spray outlets can be two, three or more. This arrangement allows cold water, hot water or steam sprayed through the nozzle 22 to be evenly sprayed to all parts of the cooking chamber 121, which is beneficial for evenly adjusting the cooking temperature at different locations within the cooking chamber 121 and improving the cooking effect.

[0079] Please see Figure 4 and Figure 5In one embodiment, the rice cooker 100 includes a first temperature sensor 6, which is located on the bottom outer side of the cooking cavity 121.

[0080] In this embodiment, the rice cooker 100 is equipped with a first temperature sensor 6 located at the bottom of the cooking cavity 121. Optionally, the first temperature sensor 6 is located below the inner pot 12. The first temperature sensor 6 can be used to detect the temperature of the cooking cavity 121, thereby determining the cooking state and stage of the rice cooker 100. For example, the temperature of the cooking cavity 121 can be used to determine whether the liquid in the cooking cavity 121 is boiling, thereby controlling the operating state of each component in the rice cooker 100 according to the cooking stage. For example, when cooking dumplings or other ingredients that require cold water, the water tank 31 can be controlled to supply water to the first water outlet pipe 32 when the rice cooker 100 is boiling, thereby adding cold water into the cooking cavity 121. Optionally, the heating module 41 of the composite heating plate 4 is located below the inner pot 12 of the cooker body assembly 1. An avoidance opening can be provided on the heating plate 43 of the heating module 41, so that the first temperature sensor 6 is located at the avoidance opening to accurately detect the temperature of the inner pot 12.

[0081] Please see Figure 2 In one embodiment, the rice cooker 100 includes a second temperature sensor 7, which is disposed on the lid assembly 2.

[0082] The second temperature sensor 7 can also be used to detect the temperature in the cooking cavity 121, thereby determining the cooking status and stage of the rice cooker 100 and improving the control accuracy of the rice cooker 100. For example, the temperature of the cooking cavity 121 can be used to determine whether the liquid in the cooking cavity 121 is boiling, and the operating status of each component in the rice cooker 100 can be controlled according to the cooking stage. For example, when cooking dumplings or other ingredients that require cold water, the water tank 31 can be controlled to supply water to the first water outlet pipe 32 when the rice cooker 100 is boiling, thereby adding cold water into the cooking cavity 121.

[0083] In some implementations, a first temperature sensor 6 and a second temperature sensor 7 may be provided in the rice cooker 100, which will not be described in detail here.

[0084] Please see Figure 1 and Figure 5In one embodiment, the water tank 31 is located on the side of the rice cooker assembly 1 and connected to it. This arrangement makes the rice cooker 100 a single unit, facilitating its overall transport and use. Furthermore, placing the water tank 31 on the outside of the rice cooker assembly 1 makes it easy to add water or clean the tank. Optionally, the water tank 31 includes a body and a lid. The lid is closable and can be opened and closed, allowing the interior of the water tank 31 to be exposed for adding water or cleaning.

[0085] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A rice cooker, characterized in that, include: A pot body assembly, wherein the pot body assembly is provided with a cooking cavity; A cover assembly, which is openable and closable at the opening of the cooking cavity; A composite heating plate includes a heating plate, an electric heating element, and a water pipe. The electric heating element and the water pipe are embedded in the heating plate. The heat generated by the electric heating element can be transferred to the water pipe to heat the water flowing through the water pipe. A water supply assembly includes a water tank, a first water outlet pipe, and a second water outlet pipe. The first water outlet pipe connects the water tank and the cooking cavity, the second water outlet pipe connects the water tank and the inlet of the water guide pipe, and the air outlet of the water guide pipe is connected to the cooking cavity.

2. The rice cooker as described in claim 1, characterized in that, The water supply assembly also includes: A water pump, wherein the inlet of the water pump is connected to the water tank; and A three-way valve, wherein the inlet of the three-way valve is connected to the outlet of the water pump, one outlet of the three-way valve is connected to the inlet of the first outlet pipe, and the other outlet of the three-way valve is connected to the inlet of the second outlet pipe; The three-way valve is used to control the water tank to selectively supply water to either the first outlet pipe or the second outlet pipe.

3. The rice cooker as described in claim 1, characterized in that, The cooker assembly includes a cooker body and an inner pot. The cooker body has an installation space, the inner pot is located in the installation space, the inner pot has a cooking cavity, the composite heating plate is located below the inner pot, and the heat generated by the electric heating tube can be transferred to the inner pot.

4. The rice cooker as described in claim 1, characterized in that, The lid assembly is provided with a flow channel, and the outlet of the flow channel is provided with a nozzle exposed on one side surface of the lid assembly. The first water outlet pipe and the water guide pipe are connected to the inlet of the flow channel at least when the rice cooker is in the closed state.

5. The rice cooker as described in claim 4, characterized in that, The rice cooker also includes a transfer pipe, the inlet of which, the outlet of the first water outlet pipe, and the outlet of the water guide pipe are connected to the same tee, and the other end of the transfer pipe is used to communicate with the guide channel. The rice cooker also includes a one-way valve, which is located between the water pipe and the three-way valve, and the one-way valve allows unidirectional flow along the direction from the water pipe to the three-way valve.

6. The rice cooker as described in claim 5, characterized in that, The adapter pipe is disposed in the pot body assembly, and the surface of the pot body assembly facing the lid assembly is provided with a first docking structure communicating with the adapter pipe; The surface of the lid assembly facing the cooker assembly is provided with a second docking structure that communicates with the inlet of the flow channel. When the rice cooker is in the closed state, the first docking structure and the second docking structure are connected.

7. The rice cooker as described in claim 6, characterized in that, The first docking structure includes a valve seat and a valve core. The valve seat has a valve cavity that communicates with the adapter pipe. The valve seat also has a docking interface that communicates with the valve cavity and is exposed on the top surface of the pot body. The valve core is movably disposed in the valve cavity to close or open the docking interface.

8. The rice cooker as described in claim 7, characterized in that, The first docking structure further includes an elastic element, which is disposed in the valve cavity and acts between the valve core and the valve seat; When the rice cooker is in the open state, the elastic element provides elastic force to the valve core, causing the valve core to close the connecting port. When the rice cooker is in the closed state, the second connecting structure supports the valve core to overcome the elastic force of the elastic element, causing the connecting port to open and communicate with the valve cavity.

9. The rice cooker as described in claim 5, characterized in that, The lid assembly is hinged to the pot body assembly, and the adapter pipe is laid through the hinge position of the pot body assembly and the lid assembly and communicates with the guide channel.

10. The rice cooker as described in claim 4, characterized in that, The nozzle has at least two nozzle outlets arranged circumferentially on its sidewall.

11. The rice cooker as described in any one of claims 1 to 10, characterized in that, The rice cooker includes a first temperature sensor, which is located on the bottom outer side of the cooking cavity; And / or, the rice cooker includes a second temperature sensor, which is disposed on the lid assembly; And / or, the water tank is located on the side of the cooker assembly and connected to the cooker assembly.

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