Temperature-controlled electric flame burner and electric flame hob having the same

Abstract

The utility model discloses a temperature control formula electric flame stove head and have its electric flame stove, wherein, this temperature control formula electric flame stove head, including panel, platen, plasma electrode assembly and fan, the panel has the electrode sheath that protrudes upwards to have the flame port to the upper end of electrode sheath, platen is established below the panel and is sealedly defined air cavity between the panel, plasma electrode assembly is established in the electrode sheath, the fan is established at the bottom of platen, is used for blowing into the air in air cavity, and makes air enter to the electrode sheath after blowing out from the flame port. The utility model discloses temperature control formula electric flame stove head and electric flame stove, utilize the fan to blow into the air in air cavity, make air pass through electrode sheath and blow out from the flame port again, thereby auxiliary realization temperature control, in practical application, combine high pressure pulse regulation control mode, make the temperature of stove head can effectively control target range, can reduce the generation of ozone and nitrogen oxides significantly, thereby promote environmental friendliness and use safety.

Description

Technical Field

[0001] This utility model relates to stoves, and more particularly to a temperature-controlled electric flame stove burner and an electric flame stove having the same. Background Technology

[0002] An electric flame stove is a type of open-flame stove that does not use chemical fuels; it can also be described as a device that ignites air. An electric flame stove generates a strong electric field between one or more pairs of electrodes by applying a high-voltage pulse power supply. This ionizes and heats the air flowing between the electrodes, transforming it into a high-temperature plasma stream. This plasma stream heats the cookware with a visible flame effect similar to that of a gas stove.

[0003] Electric flame stoves, as a novel application of electric arc plasma, have many unique advantages. However, due to the inherent characteristics of air plasma, they also have side effects, mainly: 1) The plasma gas flow generated by the arc discharge contains ozone and nitrogen oxides of varying densities. Ozone is produced by the combination of oxygen atom free radicals at high temperatures, while nitrogen oxides are produced by the combination of nitrogen atom free radicals and oxygen atom free radicals at high temperatures to produce nitric oxide. Some nitric oxide can then combine with other oxygen atom free radicals to generate nitrogen dioxide. Excessive emissions of ozone and nitrogen oxides may harm human health. 2) The potential temperature range of the plasma gas flow generated by the discharge is extremely wide, from tens of degrees to tens of thousands of degrees. Without control, there is a risk of damaging cookware. Temperature control usually involves adjusting the high-voltage pulse, but this single adjustment method is insufficient for rapid temperature regulation and accurate response. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this utility model is to provide a temperature-controlled electric flame stove burner and an electric flame stove having it.

[0005] To achieve the above objectives, on one hand, the temperature-controlled electric flame burner head according to an embodiment of the present invention includes:

[0006] A panel having an upwardly protruding electrode sheath, the upper end of which has a flame port;

[0007] A tray, wherein the tray is disposed below the panel and is sealed between the panel to define an air cavity;

[0008] A plasma electrode assembly, wherein the plasma electrode assembly is disposed within the electrode sheath;

[0009] A fan is located at the bottom of the support plate and is used to blow air into the air cavity, so that the air enters the electrode sheath and is blown out from the flame port.

[0010] In addition, the temperature-controlled electric flame burner head according to the above embodiments of this utility model may also have the following additional technical features:

[0011] According to one embodiment of the present invention, an electrode seat is provided in the air cavity, and the plasma electrode assembly includes an anode column and a cathode spiral ring. The anode column passes through the center of the electrode seat, and the cathode spiral ring is coaxially sleeved outside the anode column and fixed to the electrode seat.

[0012] According to one embodiment of the present invention, the electrode holder includes an electrode base and an electrode top seat. The electrode base is fixed on the support plate and has a first through hole. The electrode top seat is pluggable and detachable from the electrode base and has a second through hole and a third through hole arranged coaxially. The diameter of the third through hole is smaller than the diameter of the second through hole.

[0013] The anode post is inserted through the third through hole, and the lower end of the anode post is inserted into the first through hole. The cathode spiral ring is sleeved in the second through hole.

[0014] According to one embodiment of the present invention, the bottom surface of the panel is provided with a positioning retaining ring, the positioning retaining ring is coaxially arranged with the electrode sheath, and the upper end of the electrode top seat is inserted into the positioning retaining ring so as to position and fix the electrode top seat by the positioning retaining ring.

[0015] According to one embodiment of the present invention, the bottom of the tray has an air inlet, and the periphery of the air inlet protrudes downward to form a duct; the fan is mounted on the duct, and the air outlet side of the fan faces the duct.

[0016] According to one embodiment of the present invention, a sealing gasket is provided between the panel and the tray.

[0017] On the other hand, the electric flame stove according to an embodiment of the present invention includes:

[0018] The temperature-controlled electric flame burner head described above;

[0019] A power module is used to convert alternating current (AC) to direct current (DC).

[0020] A fan drive circuit, connected to the fan, is used to drive the fan;

[0021] A high-voltage pulse drive circuit is connected to the plasma electrode assembly to drive the plasma electrode assembly to generate an electric flame;

[0022] A PWM control module is connected to the fan drive circuit and the high-voltage pulse drive circuit to control and adjust the fan speed and the high-voltage pulse output by the high-voltage pulse drive circuit.

[0023] According to one embodiment of the present invention, it further includes a resistor regulator, which is connected to the PWM control module and is used to adjust the flame intensity of the electric flame by changing the resistance value of the resistor regulator;

[0024] Alternatively, a fire intensity selection button, which is connected to the PWM control module, can be used to adjust the firepower of the electric flame by selecting the fire intensity end type.

[0025] According to one embodiment of the present invention, a temperature sensor is further included. The temperature sensor is used to detect the temperature of the electric flame. The PWM control module is connected to the temperature sensor and is used to actively adjust the control of the fan and the high-voltage pulse when the temperature of the electric flame exceeds the target temperature range, so as to limit the temperature of the electric flame to the target temperature range.

[0026] According to one embodiment of the present invention, the target temperature range is 600 to 1300°C.

[0027] According to the embodiment of this utility model, a temperature-controlled electric flame stove burner head and an electric flame stove having the same are provided. A fan blows air into the air chamber, which then passes through the electrode sheath and exits through the flame opening, thereby assisting in temperature control. In practical applications, combined with a high-voltage pulse regulation control method, the burner head temperature can be effectively controlled within a target range, such as between 600 and 1300°C. This not only ensures the stability of the burner head heating process but also significantly reduces the generation of ozone and nitrogen oxides at lower temperatures, thus improving environmental friendliness and safety. Furthermore, this method combining fan and high-voltage pulse regulation features rapid adjustment and accurate and reliable temperature control.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] 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.

[0030] Figure 1 This is a schematic diagram of the structure of the temperature-controlled electric flame stove head according to an embodiment of this utility model;

[0031] Figure 2 This is a cross-sectional view of the temperature-controlled electric flame stove head according to an embodiment of this utility model;

[0032] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0033] Figure 4 This is an exploded view of the temperature-controlled electric flame stove head according to an embodiment of this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the electric flame stove according to an embodiment of the present invention;

[0035] Figure 6 This is a circuit block diagram of the electric flame stove according to an embodiment of the present invention.

[0036] Figure label:

[0037] 10. Panel;

[0038] 101. Electrode sheath;

[0039] H101, Flame vent;

[0040] 102. Positioning retaining ring;

[0041] 20. Pallet;

[0042] 201. Ventilation duct;

[0043] 30. Plasma electrode assembly;

[0044] 301. Anode column;

[0045] 302. Cathode spiral coil;

[0046] 31. Electrode holder;

[0047] 311. Electrode base;

[0048] 312. Electrode top seat;

[0049] H3a, First through hole;

[0050] H3b, second through hole;

[0051] H3c, third through hole;

[0052] 40. Fan;

[0053] 50. Power supply module;

[0054] 51. Fan drive circuit;

[0055] 52. High-voltage pulse drive circuit;

[0056] 53. PWM control module;

[0057] 54. Temperature sensor.

[0058] 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

[0059] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0060] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] The following describes in detail, with reference to the accompanying drawings, a temperature-controlled electric flame burner head and an electric flame stove having the same.

[0065] Reference Figures 1 to 4 As shown, the temperature-controlled electric flame burner head provided according to the embodiment of this utility model includes a panel 10, a tray 20, a plasma electrode assembly 30, and a fan 40.

[0066] Specifically, the panel 10 has an upwardly protruding electrode sleeve 101, the upper end of which has a flame port H101, which guides the flame and controls the flame jet position. For example, there are usually multiple electrode sleeves 101, arranged in an array on the panel 10. For instance, multiple electrode sleeves 101 can be arranged in a circular array, forming multiple ignition points to achieve uniform heating. Preferably, the electrode sleeve 101 and the panel 10 are made of the same material (e.g., stainless steel) and are formed as a single unit.

[0067] The tray 20 is disposed below the panel 10 and seals with the panel 10 to define an air cavity. The tray 20 is typically made of metal, such as stainless steel or aluminum alloy. Exemplarily, both the tray 20 and the panel 10 are circular, and the tray 20 and the panel 10 are combined vertically to form a sealed structure, thereby defining a circular air cavity for introducing external air through the fan 40 and blowing the air into the electrode sheath 101.

[0068] The plasma electrode assembly 30 is disposed within the electrode sheath 101. In specific applications, the plasma electrode assembly 30 is connected to a high-voltage pulse drive circuit 52. The high-voltage pulse drive circuit 52 provides a high-voltage pulse, which generates a strong electric field when the high-voltage pulse is applied to the plasma electrode assembly 30. This causes the air flowing between the electrodes to ionize and heat up, transforming into a high-temperature plasma gas flow, forming an electric flame.

[0069] A fan 40 is located at the bottom of the support plate 20 and is used to blow air into the air cavity, allowing the air to enter the electrode sheath 101 and then exit from the flame port H101. By using the fan 40 to blow air into the air cavity, the air flows into the electrode sheath 101 and is then ejected from the flame port H101. During this process, the incoming cold air cools the plasma electrode assembly 30 inside the electrode sheath 101, making the overall temperature control process faster, more accurate, and more reliable. In practical applications, the fan 40 works in conjunction with high-voltage pulse regulation control to achieve even more reliable temperature regulation.

[0070] According to the temperature-controlled electric flame stove burner head provided in this embodiment of the invention, a fan 40 blows air into the air chamber, and then the air passes through the electrode sheath 101 and is blown out from the flame port H101, thereby assisting in temperature control. In practical applications, combined with a high-voltage pulse regulation control method, the burner head temperature can be effectively controlled within a target range, such as between 600 and 1300°C. This not only ensures the stability of the burner head heating process, but also significantly reduces the generation of ozone and nitrogen oxides at lower temperatures, thereby improving environmental friendliness and safety. Furthermore, this method combining the fan 40 and high-voltage pulse regulation features rapid adjustment and accurate and reliable temperature control.

[0071] Reference Figures 2 to 4 As shown, in one embodiment of the present invention, an electrode seat 31 is provided in the air cavity, and the plasma electrode assembly 30 includes an anode column 301 and a cathode spiral coil 302. The anode column 301 passes through the center of the electrode seat 31, and the cathode spiral coil 302 is coaxially sleeved outside the anode column 301 and fixed to the electrode seat 31.

[0072] In this embodiment, by setting an electrode holder 31 inside the air cavity and coaxially mounting an anode column 301 and a cathode spiral coil 302 on it, the plasma electrode assembly 30 is effectively and stably fixed. The configuration of the anode column 301 and the cathode spiral coil 302 ensures good discharge characteristics and a uniform electric field distribution, while temperature control and regulation are achieved under high-voltage pulse regulation.

[0073] Reference Figures 2 to 4 As shown, in one embodiment of this utility model, the electrode holder 31 includes an electrode base 311 and an electrode top seat 312. The electrode base 311 is fixed on the support plate 20, and the electrode base 311 has a first through hole H3a. The electrode top seat 312 is pluggable and detachable from the electrode base 311, that is, the electrode top seat 312 and the electrode base 311 are connected by a pluggable connection, which facilitates assembly, maintenance and replacement.

[0074] The electrode top seat 312 has a second through hole H3b and a third through hole H3c arranged coaxially, the diameter of the third through hole H3c being smaller than the diameter of the second through hole H3b. The anode post 301 passes through the third through hole H3c, and the lower end of the anode post 301 is inserted into the first through hole H3a. The cathode spiral ring 302 is sleeved in the second through hole H3b.

[0075] In the specific assembly process, the anode column 301 can be inserted into the third through hole H3c first, and the cathode spiral ring 302 can be inserted into the second through hole H3b to install the anode column 301 and the cathode spiral ring 302 on the electrode top seat 312. Then, the electrode top seat 312 is inserted into the electrode base 311, while ensuring that the lower end of the anode column 301 is inserted into the first through hole H3a of the electrode base 311. Finally, the panel 10 and the support plate 20 are combined together to complete the assembly of the entire furnace head.

[0076] With the above structure, the electrode base 311 and the electrode top seat 312 are plugged in and plugged in, and the anode column 301 and the cathode spiral coil 302 can also be plugged into the electrode top seat 312. This allows for quick assembly of the various components and facilitates maintenance and replacement. In addition, it ensures that the anode column 301 and the cathode spiral coil 302 are coaxially mounted, thereby ensuring the uniformity and stability of the electric flame generated by the plasma electrode assembly 30.

[0077] Reference Figure 3 As shown, in one embodiment of this utility model, a positioning retaining ring 102 is provided on the bottom surface of the panel 10. The positioning retaining ring 102 is coaxially arranged with the electrode sheath 101, and the upper end of the electrode top seat 312 is inserted into the positioning retaining ring 102 to position and fix the electrode top seat 312. Preferably, the positioning retaining ring 102 and the panel 10 are an integral structure.

[0078] During installation, the anode column 301 and the cathode spiral ring 302 are installed on the electrode top seat 312. After the electrode top seat 312 is inserted into the electrode base 311, when the panel 10 and the support plate 20 are combined, the upper end of the electrode top seat 312 can be automatically inserted into the positioning retaining ring 102 to achieve the positioning and fixing of the electrode top seat 312.

[0079] The engagement of the electrode top seat 312 and the positioning retaining ring 102 ensures that the plasma electrode assembly 30 remains stable. Furthermore, the plug-in connection method facilitates assembly and maintenance.

[0080] Preferably, a vent hole or other air passage can be provided on the electrode top seat 312 to allow air to flow into the electrode sheath 101, so that air can flow smoothly into the electrode sheath 101.

[0081] Reference Figure 2 As shown, in one embodiment of the present invention, the bottom of the tray 20 has an air inlet, and the periphery of the air inlet protrudes downward to form a wind duct 201; the fan 40 is mounted on the wind duct 201, and the air outlet side of the fan 40 faces the wind duct 201.

[0082] In this embodiment, a duct 201 is provided at the bottom of the support plate 20, and the fan 40 is installed on the duct 201, which facilitates the installation of the fan 40. At the same time, the duct 201 can effectively guide external air into the air inlet and then into the air cavity, ensuring that the air can quickly and evenly fill the entire air cavity and disperse into each electrode sheath 101, thereby improving the efficiency and reliability of air supply.

[0083] Preferably, a sealing gasket is provided between the panel 10 and the tray 20, which can improve the sealing performance between the panel 10 and the tray 20.

[0084] Reference Figures 5 to 6 As shown, this utility model embodiment also provides an electric flame stove, including a temperature-controlled electric flame burner head, a power module 50, a fan drive circuit 51, a high-voltage pulse drive circuit 52, and a PWM control module 53 as described in the above embodiment.

[0085] Specifically, the power module 50 is used to convert alternating current (AC) to direct current (DC). This power module 50 provides a stable DC power supply to all modules in the entire electric flame stove.

[0086] The fan drive circuit 51 is connected to the fan 40 to drive the fan 40. The fan 40 is a DC fan, and the fan drive circuit 51 ensures that the fan 40 operates smoothly under predetermined voltage and current conditions.

[0087] A high-voltage pulse drive circuit 52 is connected to the plasma electrode assembly 30 to drive the plasma electrode assembly 30 to generate an electric flame. This high-voltage pulse drive circuit 52 uses high-frequency, high-voltage pulses to ensure that the plasma electrode assembly 30 generates a stable electric flame.

[0088] The PWM control module 53 is connected to the fan drive circuit 51 and the high-voltage pulse drive circuit 52 to control and adjust the speed of the fan 40 and the high-voltage pulse output by the high-voltage pulse drive circuit 52. In other words, the PWM control module 53 has two PWM output terminals: one connected to the fan drive circuit 51 to control the fan 40, and the other connected to the high-voltage pulse drive circuit 52 to control the high-voltage pulse of the plasma electrode assembly 30.

[0089] The PWM control module 53 adjusts the speed of the fan 40 and the pulse output parameters of the high-voltage pulse drive circuit 52 through pulse width modulation, so that the entire electric flame stove can achieve efficient and orderly temperature control within a wide working range.

[0090] According to the electric flame provided in this embodiment of the invention, a fan 40 blows air into the air chamber, and then the air passes through the electrode sheath 101 and is blown out from the flame opening H101, thereby assisting in temperature control. Combined with a high-voltage pulse regulation control method, the temperature of the burner head can be effectively controlled within a target range, such as between 600 and 1300°C. This not only ensures the stability of the burner head heating process, but also significantly reduces the generation of ozone and nitrogen oxides at lower temperatures, thereby improving environmental friendliness and safety. Furthermore, this method of combining the fan 40 and high-voltage pulse regulation features rapid adjustment and accurate and reliable temperature control.

[0091] In one embodiment of this utility model, the electric flame stove further includes a temperature sensor 54, which is used to detect the temperature of the electric flame. The PWM control module 53 is connected to the temperature sensor 54 and is used to actively adjust the control of the fan 40 and the high-voltage pulse when the temperature of the electric flame exceeds the target temperature range, so as to limit the temperature of the electric flame to the target temperature range.

[0092] In this embodiment, during the specific implementation process, when the temperature sensor 54 detects that the flame temperature exceeds the target temperature range, the PWM control module 53 increases the speed of the fan 40 through the PWM signal to increase the airflow cooling effect, while simultaneously reducing the pulse frequency or amplitude of the high-voltage pulse drive circuit 52, thereby reducing the heat energy input of the flame. Conversely, when the flame temperature is below the target temperature range, the fan speed 40 is appropriately reduced, and the high-voltage pulse parameters are adjusted to enhance the heating effect of the flame. The entire control process achieves rapid temperature response and automatic adjustment, ensuring that the temperature of the electric flame remains stable within the target temperature range, and reducing the generation of ozone and nitrogen oxides.

[0093] Preferably, the target temperature range is 600 to 1300℃. For electric flame stoves, the concentration of ozone and nitrogen oxides generated by air plasma is greatly related to the plasma temperature, with 1800K-4300K ​​being the high-risk range. By controlling the temperature between 600 and 1300℃, the generation of ozone and nitrogen oxides can be significantly reduced.

[0094] In some embodiments of this utility model, the electric flame stove further includes a resistance regulator, which is connected to the PWM control module 53 and is used to adjust the firepower of the electric flame by changing the resistance value of the resistance regulator.

[0095] Alternatively, a flame intensity selection button, connected to the PWM control module 53, can be used to adjust the intensity of the electric flame by selecting the flame end type. For example, the flame end type can be, but is not limited to, boiling water, slow cooking, stir-frying, roasting chicken, roasting meat, etc.

[0096] Users can preset the initial flame intensity at startup using a resistor regulator. During operation, users can adjust the resistance value of the regulator in real time as needed. This change in resistance value is transmitted through the PWM control module 53, which outputs a corresponding PWM signal. This, in turn, changes the high-voltage pulse output by the high-voltage pulse drive circuit 52, ultimately enabling precise adjustment of the flame intensity within the target temperature range, such as 600℃, 800℃, 1000℃, etc. In this way, the user's temperature range adjustment needs are met while controlling the temperature within the target temperature range.

[0097] Alternatively, users can select the desired flame type via the flame selection button. Multiple flame types are pre-set, allowing users to choose the appropriate type based on their cooking needs. Each flame type corresponds to pre-set control parameters and high-voltage pulse output configuration, enabling the electric flame's heat release, heat intensity, and temperature distribution to adapt to different cooking scenarios. Users simply select the appropriate flame type, and the electric flame stove automatically switches operating modes via its built-in PWM control module 53, achieving intelligent heat adjustment. This selective adjustment via the button is also within the target temperature range, thus maintaining low levels of ozone and nitrogen oxides.

[0098] The use of the aforementioned resistor regulator or flame selection button makes flame intensity adjustment more convenient and flexible, meeting users' needs for flame intensity control. Simultaneously, combined with the PWM control module 53, temperature feedback control limits the temperature within the target range. This achieves both a reduction in ozone and nitrogen oxide emissions and fulfillment of users' temperature regulation requirements.

[0099] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0100] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using 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 temperature-controlled electric flame burner, characterized in that, include: A panel having an upwardly protruding electrode sheath, the upper end of which has a flame port; A tray, wherein the tray is disposed below the panel and is sealed between the panel to define an air cavity; A plasma electrode assembly, wherein the plasma electrode assembly is disposed within the electrode sheath; A fan, located at the bottom of the support plate, is used to blow air into the air cavity and allow the air to enter the electrode sheath before being blown out from the flame port.

2. The temperature-controlled electric flame burner head according to claim 1, characterized in that, An electrode base is provided inside the air cavity. The plasma electrode assembly includes an anode column and a cathode spiral ring. The anode column passes through the center of the electrode base, and the cathode spiral ring is coaxially sleeved outside the anode column and fixed to the electrode base.

3. The temperature-controlled electric flame burner head according to claim 2, characterized in that, The electrode holder includes an electrode base and an electrode top. The electrode base is fixed to the support plate and has a first through hole. The electrode top is pluggable to the electrode base and has a second through hole and a third through hole arranged coaxially. The diameter of the third through hole is smaller than the diameter of the second through hole. The anode post is inserted through the third through hole, and the lower end of the anode post is inserted into the first through hole. The cathode spiral ring is sleeved in the second through hole.

4. The temperature-controlled electric flame burner head according to claim 3, characterized in that, The bottom surface of the panel is provided with a positioning retaining ring, which is coaxially arranged with the electrode sheath. The upper end of the electrode top seat is inserted into the positioning retaining ring so as to position and fix the electrode top seat by means of the positioning retaining ring.

5. The temperature-controlled electric flame burner head according to claim 1, characterized in that, The bottom of the tray has an air inlet, and the periphery of the air inlet protrudes downward to form an air duct; the fan is mounted on the air duct, and the air outlet side of the fan faces the air duct.

6. The temperature-controlled electric flame burner head according to claim 1, characterized in that, A sealing gasket is provided between the panel and the tray.

7. An electric flame stove, characterized in that, include: Temperature-controlled electric flame burner head as described in any one of claims 1 to 6; A power module is used to convert alternating current (AC) to direct current (DC). A fan drive circuit, connected to the fan, is used to drive the fan; A high-voltage pulse drive circuit is connected to the plasma electrode assembly to drive the plasma electrode assembly to generate an electric flame; A PWM control module is connected to the fan drive circuit and the high-voltage pulse drive circuit to control and adjust the fan speed and the high-voltage pulse output by the high-voltage pulse drive circuit.

8. The electric flame stove according to claim 7, characterized in that, It also includes a resistor regulator, which is connected to the PWM control module to adjust the flame intensity of the electric flame by changing the resistance value of the resistor regulator; Alternatively, a fire intensity selection button, which is connected to the PWM control module, can be used to adjust the firepower of the electric flame by selecting the fire intensity end type.

9. The electric flame stove according to claim 7, characterized in that, It also includes a temperature sensor for detecting the temperature of the electric flame. The PWM control module is connected to the temperature sensor and is used to actively adjust the control of the fan and high-voltage pulse when the temperature of the electric flame exceeds the target temperature range, so as to limit the temperature of the electric flame to the target temperature range.

10. The electric flame stove according to claim 9, characterized in that, The target temperature range is 600 to 1300°C.

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