Electric heating cooking device
By using a pot handle sensor detection and control device, combined with an anti-overflow detection device and a water injection system, the problem of time-consuming and energy-intensive electric heating cooking devices in commercial environments is solved, achieving efficient and energy-saving cooking and anti-overflow control.
Patent Information
- Application Number
- CN202422019370.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Existing electric heating cooking devices are time-consuming and energy-intensive in commercial environments, cannot effectively simulate cooking habits in commercial settings, and lack effective spill prevention controls.
It uses a pot handle and two sensors to detect user operation, and combines them with a control device to realize three heating actions: simmering, ignition and cooking. It is also equipped with an anti-overflow detection device and a controlled water injection system, which controls the heating power and water injection by detecting the position of the handle through sensors.
It enables efficient cooking in a commercial environment, saves energy, and has an anti-overflow function, adapting to cooking habits in a commercial setting.
Smart Images
Figure CN223504052U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a novel electric heating cooking device BACKGROUND
[0002] Now electric heating cooking device usually is according to control device predetermined one of several programs to cook. Take cooking water dumplings as an example, it usually is first with full power to heat the water in the pot. Through water boiling detection device real-time detection whether the water in the pot is boiled, if boils, then remind to add dumplings, and after adding dumplings, boil the water again, after the water is boiled, then through the mode of stopping heating or reducing power heating to keep warm 2-3 minutes, to prevent the dumplings from being boiled in boiling water for a long time, then increase the heating power again to boil the water, and continuously 1-2 minutes, keep warm 2-3 minutes again through the mode of stopping heating or reducing power heating, so repeatedly 3-4 times, then determine that the dumplings are cooked, and send a reminder signal.
[0003] This way is only suitable for household, if used in the dumpling shop, when people come, need to boil water temporarily, it is time-consuming, if always keep normal boiling, it is more power-consuming. CONTENT OF THE UTILITY MODEL
[0004] In order to overcome the above-mentioned defects, the utility model aims at providing a novel electric heating cooking device.
[0005] In order to achieve the above-mentioned purpose, the utility model discloses an electric heating cooking device, which comprises an electric heating stove, a cooking pot arranged on the electric heating stove, and a pot cover arranged on the cooking pot.
[0006] A first support and a second support corresponding to the tail part of the handle are arranged on the upper surface of the electric heating stove on one side of the cooking pot, a first sensor for detecting the tail part of the handle is arranged on the first support, and a second sensor for detecting the tail part of the handle is arranged on the second support.
[0007] The utility model further comprises a control device, the signal output ends of the first sensor and the second sensor are connected to the input end of the control device, and the control device comprises a microprocessor and a memory.
[0008] When the first sensor detects the tail part of the handle, the first sensor outputs a signal to the control device, and the control device controls the electric heating stove to heat at a first power so that the water in the pot is in a slightly boiling state.
[0009] When the second sensor detects the tail part of the handle, the second sensor outputs a signal to the control device, and the control device controls the electric heating stove to heat according to a predetermined heating program.
[0010] When the handle tail is not detected by the first sensor and the second sensor within a predetermined time, the control device controls the electric heating cooker to heat at a second power;
[0011] The first power is less than the second power.
[0012] Further, the handle tail is provided with a permanent magnet; the first sensor and the second sensor are dry reed, Hall sensor, magnetic control switch, magnetic control sensor.
[0013] Further, the first sensor and the second sensor are micro switch, photoelectric switch.
[0014] Further, the first support and the second support are provided with arc-shaped recesses at the upper ends, and the first sensor and the second sensor are arranged on the upper surfaces of the arc-shaped recesses or arranged in the arc-shaped recesses.
[0015] Further, the electric heating cooker is provided with an anti-overflow detection device connected to the input end of the control device.
[0016] Further, the control device is further connected to a controlled water injection device; when the anti-overflow detection device detects overflow, the control device outputs a signal to the controlled water injection device to make the controlled water injection device inject water into the electric heating cooker.
[0017] Further, a water tank and a controlled water pump connected to the water tank through a pipeline are arranged on one side of the cooking utensil, and the water outlet of the water outlet pipe of the controlled water pump is located above the cooking utensil.
[0018] Further, a recess is arranged in the lid and the water injection hole is arranged in the recess; the water outlet of the water outlet pipe is located in the recess and does not contact the lid.
[0019] The anti-overflow detection device includes two anti-overflow electrodes, wherein the first anti-overflow electrode is arranged on the cooking utensil or the lid, and the second anti-overflow electrode is arranged at the water outlet of the water outlet pipe.
[0020] Or,
[0021] A recess is arranged in the lid and a plurality of overflow holes are arranged in the recess; the water outlet of the water outlet pipe is located in the recess and does not contact the lid.
[0022] The anti-overflow detection device includes two anti-overflow electrodes, wherein the first anti-overflow electrode is arranged on the cooking utensil or the lid, and the second anti-overflow electrode is arranged at the water outlet of the water outlet pipe.
[0023] Or,
[0024] The water outlet pipe is inserted into the water outlet pipe insertion hole and the water outlet of the water outlet pipe is located in the pot cover.
[0025] The anti-overflow detection device comprises two anti-overflow electrodes, wherein the first anti-overflow electrode is arranged on the cooking utensil or the pot cover, and the second anti-overflow electrode is arranged at the water outlet of the water outlet pipe.
[0026] Further, the water outlet pipe is a metal pipe, and the second anti-overflow electrode is electrically connected with the metal pipe.
[0027] Further, the controlled water injection device comprises a water tank arranged on the container cover, wherein the bottom of the water tank is provided with a water outlet pipe, the water outlet of the water outlet pipe is located on the lower surface of the container cover, a controlled valve is arranged on the water outlet pipe, and the controlled valve receives an output signal of the control device to make the water outlet pipe conductive or closed.
[0028] To achieve the above-mentioned purpose, the electric heating cooking device cooking method comprises the following steps:
[0029] The first sensor and the second sensor are monitored in real time.
[0030] When the first sensor detects the handle tail, the first sensor outputs a signal to the control device, and the control device controls the electric heating cooker to be in a heat preservation state.
[0031] When the second sensor detects the handle tail, the second sensor outputs a signal to the control device, and the control device controls the electric heating cooker to be in a high-power heating state.
[0032] When the first sensor and the second sensor cannot detect the handle tail, the control device controls the electric heating cooker to heat according to a predetermined program.
[0033] To achieve the above-mentioned purpose, the electric heating cooking device cooking method comprises the following steps:
[0034] The first sensor and the second sensor are monitored in real time.
[0035] When the first sensor detects the handle tail, the first sensor outputs a signal to the control device, and the control device controls the electric heating cooker to be in a heat preservation state.
[0036] When the second sensor detects the handle tail, the second sensor outputs a signal to the control device, and the control device controls the electric heating cooker to be in a high-power heating state.
[0037] When the first sensor and the second sensor cannot detect the handle tail, the control device controls the electric heating cooker to heat according to a predetermined program.
[0038] Also included in any of the above steps is the step of detecting in real time whether the pot overflows; when detecting the overflow, the water injection device is controlled to inject water into the pot or reduce the heating power;
[0039] The utility model discloses a handle sensor, the position of the handle is detected, and whether the user operates is judged, so that three heating actions of micro boiling, ignition and cooking are realized, the cooking habit in commercial environment is simulated, and energy can be saved. BRIEF DESCRIPTION OF DRAWINGS
[0040] Figure 1 It is a top view schematic diagram of the utility model embodiment 1.
[0041] Figure 2 It is Figure 1 The sectional view schematic diagram.
[0042] Figure 3 It is the principle block diagram of the utility model.
[0043] Figure 4 It is the structure schematic diagram of the handle on the support.
[0044] Figure 5 It is the structure schematic diagram of the utility model embodiment 1.
[0045] Figure 6 It is the structure schematic diagram of the utility model embodiment 4.
[0046] Figure 7 It is the structure schematic diagram of the utility model embodiment 5. DETAILED DESCRIPTION
[0047] The utility model embodiment is described in detail below in combination with the drawings.
[0048] In the description of the utility model, it is understood that the orientation or position relationship of the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0049] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.
[0050] In the description of the utility model, it is to be explained that, unless there is definite stipulation and limitation, the term ''installation'', ''connection'' should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be direct connection, also can be indirect connection through intermediate medium, can be two element inside intercommunication, for the ordinary skill in the art, the above-mentioned term can be understood in the utility model with concrete meaning of concrete situation.
[0051] As Figure 1 And Figure 2 The utility model discloses an electric heating cooker, which is characterized by comprising a cooking utensil and a pot cover 1 arranged on the cooking utensil, a handle 3 arranged on the pot cover, wherein the front end of the handle is arranged on the pot cover, and the tail of the handle extends outward to the outside of the pot body.
[0052] A first support 21 and a second support 22 corresponding to the tail of the handle are arranged on the upper surface of the electric heating cooker on one side of the cooking utensil, a first sensor for detecting the tail of the handle is arranged on the first support 21, and a second sensor for detecting the tail of the handle is arranged on the second support 22.
[0053] When the pot handle is placed on the first support, the first sensor detects and outputs a signal to the control device, and the control device controls the electric heating cooker to heat at the first power so that the water in the utensil is in a micro-boiling state.
[0054] When the pot handle is placed on the second support, the second sensor detects and outputs a signal to the control device, and the control device controls the electric heating cooker to heat according to a predetermined heating program.
[0055] When the tail of the handle is not detected by the first sensor and the second sensor within a predetermined time, the control device controls the electric heating cooker to heat at the second power.
[0056] The first power is less than the second power.
[0057] The above-mentioned electric heating device is first an induction cooker, because it is convenient to adjust and control the power, and can also adopt an electric heating device with multiple heating pipes (wires), for example, three heating pipes, one or two heating pipes are used at the first power, and two or three heating pipes are used at the second power.
[0058] The first sensor and the second sensor can be selected as required, for example, the first sensor and the second sensor can be a micro switch, when the handle is placed on any one of the posts, the corresponding micro switch is closed under the weight of the handle, and the micro switch is turned on, and when the handle is lifted, the micro switch is turned off. A magnet can also be provided at the tail of the handle, and the first sensor and the second sensor are reed tubes or Hall elements; when the handle is placed on any one of the posts, the corresponding reed tube or Hall element is closed under the action of the magnet, and when the handle is lifted, the reed tube or Hall element is turned off. It can also be a photoelectric switch, a proximity switch, etc., which will not be listed one by one.
[0059] The first power can be set as required, for example, the electromagnetic oven, the first power can be selected to 50%-70% of the power for heating; and the second power can be selected to 80%-100% of the power for heating; these power values can be set as required.
[0060] The following will be further described in combination with the actual business environment, during the dining process in the restaurant, dumpling shop, etc., the restaurant, dumpling shop will generally have three processes:
[0061] 1) Wait for customers
[0062] When there is no user, keep a temperature close to the boiling point, for example: 80-99℃, generally 95-99℃, we call it micro boiling; this waiting time for the user is controlled at a lower power and / or temperature, in order to save energy. If the temperature is set too low, the user will have a longer waiting time after dining, which will affect the turnover rate (the reuse rate of the dining table); if the temperature is set too high, it will waste electricity, so the actual temperature can be set as required.
[0063] In actual use, when the owner places the pot handle on the first post, the first sensor detects and outputs a signal to the control device, and the control device controls the electric heating stove to heat at the first power to make the water in the pot in the energy-saving state of micro boiling;
[0064] 2) Customers enter the store
[0065] When the user comes, in order to enable the user to dine as soon as possible; at this time, the pot cover needs to be opened, so as to put food into the pot; this process needs to make the pot quickly enter the boiling state;
[0066] Therefore, the control device cannot detect the pot handle through the first sensor and the second sensor, and it is considered that the user has come, so that the heating is carried out at a large power (80%-100%) or full power, in order to quickly open the pot, which is called "ignition".
[0067] 3) Cooking
[0068] When the food is put into the pot, it needs to be heated according to the predetermined program, for example, the dumpling cooking needs to be opened, kept warm, opened again, kept warm again, and opened for the third time; at this time, the customer only needs to put the pot handle on the second support, and the second sensor detects and outputs a signal to the control device; the control device controls the electric heating stove to heat according to the predetermined heating program.
[0069] As can be seen from the above, the utility model aims at using the pot handle and two sensors to realize three heating actions from micro-boiling, ignition to cooking, so as to simulate the cooking habit in the commercial environment and save energy.
[0070] As a further improvement of the above-mentioned utility model, an arc-shaped recess matched with the handle is arranged at the upper end of the first support and the second support, and the first sensor and the second sensor are arranged on the upper surface of the arc-shaped recess or in the arc-shaped recess.
[0071] As a further improvement of the above-mentioned embodiments, a preferred embodiment of the utility model is that an anti-overflow detection device connected with the input end of the control device is arranged in the electric heating cooker.
[0072] The anti-overflow detection device mentioned above is usually composed of two anti-overflow detection electrodes; the two anti-overflow detection electrodes can be arranged as needed; for example, the two anti-overflow detection electrodes can be placed at a position close to the pot opening in the pot; one anti-overflow detection electrode can be arranged on the pot body, and the other can be arranged on the pot cover or suspended in the vent hole of the pot cover, etc. The anti-overflow detection device can also be a float switch or a photoelectric opposite-shooting switch, which can be designed and selected according to actual needs. After adding the anti-overflow detection device, the control device can control the pot to prevent overflow according to the design, for example, reducing the heating power or injecting water into the pot to reduce the temperature in the pot.
[0073] As a further improvement of the above-mentioned embodiments, a preferred embodiment of the utility model further includes a controlled water injection device connected with the output end of the control device; when the anti-overflow detection device detects overflow, the control device outputs a signal to the controlled water injection device to make the controlled water injection device inject water into the electric heating cooker. The water injection mode can be designed as needed, for example, water can be injected into the pot from the bottom of the pot; water can be injected into the pot from one side of the pot body; water can be injected into the pot from the top of the pot, and water can be injected into the pot from the pot cover, etc.
[0074] The water injection process can be completed by a water tank and a controlled water pump connected with the water tank through a pipeline, and the controlled water pump can also be directly arranged in the water tank; the position of the water tank can be designed according to requirements, and the water tank can be arranged on the left side or the right side of the pot body, or on the lower side or the upper side of the pot body; when the water tank is arranged on the upper side of the pot body, a controlled valve can be used to control the outflow of water in the water tank instead of using the controlled water pump.
[0075] Embodiment 1
[0076] Figure 5 An embodiment of the anti-overflow electric heating cooker of the utility model; comprising: a metal pot body 1 and a pot cover 2 arranged on the pot; the lower part of the metal pot body is provided with a heating device; a recess 3 is arranged on the pot cover; one or more overflow holes 31 are arranged on the pot cover in the recess; in this way, when the overflow enters the recess through the overflow hole on the recess, it can be detected by the anti-overflow detection electrode.
[0077] A water tank 5 and a controlled water pump 6 connected with the water tank through a pipeline are arranged on one side of the pot body, and the metal water outlet pipe 51 (or a non-metal pipe with a conductive layer) of the controlled water pump extends towards the pot cover so that the water outlet of the metal water outlet pipe is located in the recess, so as to contact the overflow; the water outlet of the water outlet pipe does not contact the pot cover at the recess.
[0078] A first anti-overflow electrode 41 is arranged on the pot body; a second anti-overflow electrode 42 is connected to the metal water outlet pipe; in this way, the metal water outlet pipe not only has the water outlet function but also has the anti-overflow detection function;
[0079] When the overflow in the pot body overflows into the recess and contacts the water outlet of the metal water outlet pipe, the control device can detect the change and output a signal to control the controlled water pump to pump water into the recess. When the water enters the pot through the overflow hole on the recess, the effect of stopping overflow can be achieved.
[0080] As a further improvement of the embodiment, the control circuit sends a signal to the heating device to reduce the heating power at the same time as sending a water pumping signal to the controlled water pump, so as to achieve better anti-overflow effect. This method is more effective for food that is prone to boiling over.
[0081] Embodiment 2
[0082] As a variation of the above embodiment, the water outlet pipe is a non-conductive metal pipe, such as a plastic pipe; the second anti-overflow electrode can be arranged at the water outlet of the water outlet pipe by a lead, for example, a metal ring is sleeved at the water outlet of the water outlet pipe; and then the second anti-overflow electrode is connected with the metal ring. In this way, the second anti-overflow electrode and the water outlet pipe each bear their respective functions, and can also achieve the effect of anti-overflow.
[0083] Embodiment 3
[0084] As a variation of the above embodiment, the second anti-overflow electrode can be placed in the recess by means of a lead wire, and the outlet of the water pump's outlet pipe (which can be metal or non-metal) can be located above the recess; in this way, the second anti-overflow electrode and the outlet pipe each perform their respective functions and can also achieve the effect of preventing overflow.
[0085] Example 4
[0086] like Figure 6 The overflow-proof electric heating cooker shown is Figure 5 A variation of the illustrated embodiment includes: a container 1 and a container lid 2 disposed on the pot; a water inlet 21 is provided on the upper part of the container lid 2 corresponding to the water outlet;
[0087] A first anti-overflow electrode 41 is provided on the pot body;
[0088] A water tank 5 and a controlled water pump 6 connected to the water tank via a pipe are installed on one side of the pot body. The metal outlet pipe 51 (or a non-metallic pipe with a conductive layer) of the controlled water pump extends toward the pot lid so that it enters the water inlet 21 of the outlet pipe to facilitate contact with the overflow. The outlet of the outlet pipe does not contact the pot lid.
[0089] The second anti-overflow electrode 42 is connected to the metal water outlet pipe; in this way, the metal water outlet pipe undertakes both the water outlet function and the anti-overflow detection function.
[0090] When overflow from the pot reaches the recess and comes into contact with the outlet of the metal water pipe, the control device detects this change and outputs a signal to control the controlled water pump to pump water into the recess. Once the water enters the pot through the overflow hole in the recess, it effectively prevents overflow.
[0091] Example 5
[0092] like Figure 7 The overflow-proof electric heating cooker shown is Figure 6 A variation of the illustrated embodiment is shown; a separate vent 22 is provided on the pot lid; and the water outlet pipe is inserted directly into the pot lid through the insulating sleeve on the pot lid.
[0093] Example 6
[0094] As a variation of the above embodiment, the water tank can be installed on the container lid, and the bottom of the water tank is connected to the lower surface of the container lid 2 through a pipe; a controlled solenoid valve is installed in the pipe.
[0095] When the contents of the container overflow, the control device will detect the change based on the anti-overflow detection electrode and output a signal to control the solenoid valve to open the pipe and allow water to enter the pot, thus preventing the overflow.
[0096] As a further improvement of the embodiment, the control circuit sends a signal to the heating device to reduce the heating power at the same time when sending the water pumping signal to the controlled water pump, so as to achieve a better anti-overflow effect.
[0097] Embodiment 7
[0098] The anti-overflow control method of the utility model, comprising the following steps:
[0099] In real time, whether the pot overflows is detected; when the overflow is detected, the water injection device injects water into the pot.
[0100] Further, when the overflow is detected, the step of reducing the heating power is further included;
[0101] Further, the water injection amount or the water injection time is a predetermined value; for example, 50ML of water can be injected each time, or 3 seconds of water injection each time, etc., so that the food which needs to be boiled for multiple times can be better controlled, and the water in the pot can be supplemented, for example, a small amount of water is put in the pot at the beginning for cooking, and a relative amount of water is supplemented each time after the overflow to finally reach a predetermined water amount.
[0102] Further, the step of counting the number of overflows is further included; for example, the number of overflows can be 5-15 times, and when the number of overflows reaches a predetermined number of times, the heating device is turned off. In this way, the food which needs to be boiled for multiple times can be better controlled, and the water in the pot can be supplemented, for example, a small amount of water is put in the pot at the beginning for cooking, and a relative amount of water is supplemented each time after the overflow to finally reach a predetermined water amount. Moreover, the number of overflows is finally used as a time selection point for ending the cooking.
[0103] Embodiment 9
[0104] The pot cover for preventing overflow of the utility model, comprising: setting recess on the pot cover;More than one overflow hole is set on the pot cover in the recess. In this way, when the overflow passes through the overflow hole on the recess and enters the recess, it will be detected by the anti-overflow detection electrode.
[0105] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0106] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. An electrically heated cooking apparatus, characterized in that, The electric heating cooker comprises a cooking pot, a pot cover, a handle, a first support, a second support, a first sensor, a second sensor, a control device, a first power, a second power, a first overflow electrode, a second overflow electrode, a water tank, a controlled water pump, a water outlet, a water outlet hole, a recess, a plurality of overflow holes, and a controlled water injection device. The handle is provided on the pot cover, and the tail of the handle extends outward to outside of the pot body. The first support and the second support are provided on the upper surface of the electric heating cooker on one side of the cooking pot. The first sensor is provided on the first support for detecting the tail of the handle. The second sensor is provided on the second support for detecting the tail of the handle. The signal output ends of the first sensor and the second sensor are connected to the input end of the control device. When the first sensor detects the tail of the handle, the first sensor outputs a signal to the control device. The control device controls the electric heating cooker to heat at the first power to make the water in the cooking pot in a micro-boiling state.
2. An electrically heated cooking device as claimed in claim 1, characterized in that When the second sensor detects the tail of the handle, the second sensor outputs a signal to the control device.
3. An electrically heated cooking device as claimed in claim 1, characterized in that The control device controls the electric heating cooker to heat according to a predetermined heating program.
4. An electrically heated cooking device as claimed in claim 1, characterized in that When the tail of the handle is not detected by the first sensor and the second sensor within a predetermined time, the control device controls the electric heating cooker to heat at the second power.
5. An electric cooking apparatus as claimed in claim 1, characterized in that The first power is less than the second power.
6. An electrically heated cooking device as claimed in claim 5, characterized in that The tail of the handle is provided with a permanent magnet. The first sensor and the second sensor are dry reed, Hall sensor, magnetic control switch, and magnetic control sensor. The first sensor and the second sensor are micro switch and photoelectric switch. Arc-shaped recesses are provided on the upper ends of the first support and the second support. The electric heating cooking device is provided with an anti-overflow detection device connected to the input end of the control device. The control device outputs a signal to the controlled water injection device to make the controlled water injection device inject water into the electric heating cooker when the anti-overflow detection device detects overflow. A water tank and a controlled water pump connected to the water tank by a pipeline are provided on one side of the cooking pot.
7. The electric heating cooking device of claim 6, wherein A recess is provided on the pot cover and recessed into the pot, and a water injection hole is located in the recess. The anti-overflow detection device comprises two anti-overflow electrodes, wherein a first anti-overflow electrode is provided on the cooking pot or the pot cover, and a second anti-overflow electrode is provided at the water outlet of the water outlet pipe. Or A recess is provided on the pot cover and recessed into the pot, and a plurality of overflow holes are provided in the recess. The anti-overflow detection device comprises two anti-overflow electrodes, wherein a first anti-overflow electrode is provided on the cooking pot or the pot cover, and a second anti-overflow electrode is provided at the water outlet of the water outlet pipe. Or The water outlet pipe is inserted into the water outlet pipe insertion hole and the water outlet of the water outlet pipe is located in the pot cover. The anti-overflow detection device comprises two anti-overflow electrodes, wherein the first anti-overflow electrode is arranged on the cooking utensil or the pot cover and the second anti-overflow electrode is arranged at the water outlet of the water outlet pipe.
8. An electrically heated cooking device as claimed in claim 7, characterized in that The water outlet pipe is a metal pipe and the second anti-overflow electrode is electrically connected with the metal pipe.
9. An electrically heated cooking device as claimed in claim 5, characterized in that The controlled water injection device comprises a water tank arranged on the container cover, a water outlet pipe arranged at the bottom of the water tank, a water outlet of the water outlet pipe located at the lower surface of the container cover, a controlled valve arranged on the water outlet pipe and a control device for outputting a signal to the controlled valve to turn on or turn off the water outlet pipe.