Temperature control type electric flame furnace end and electric flame stove with same

Abstract

The invention discloses a temperature control type electric flame stove burner and an electric flame stove with the temperature control type electric flame stove burner, the temperature control type electric flame stove burner comprises a panel, a supporting plate, a plasma electrode assembly and a fan, the panel is provided with an electrode sheath protruding upwards, and the upper end of the electrode sheath is provided with a flame opening; the supporting plate is arranged below the panel, and an air cavity is sealed and defined between the supporting plate and the panel; the plasma electrode assembly is arranged in the electrode sheath; the fan is arranged at the bottom of the supporting plate and used for blowing air into the air cavity and enabling the air to be blown out of the flame opening after entering the electrode sheath. According to the temperature control type electric flame stove burner and the electric flame stove, air is blown into the air cavity through the fan, then the air passes through the electrode sheath and is blown out of the flame opening, temperature control is achieved in an auxiliary mode, in practical application, a high-voltage pulse adjusting control mode is combined, the temperature of the burner can be effectively controlled within the target range, and the temperature control efficiency is improved. The generation of ozone and nitrogen oxide can be obviously reduced, so that the environmental friendliness and the use safety are improved.

Description

Technical Field

[0001] The present invention relates to a cooking appliance, and in particular, to a temperature-controlled electric flame stove burner head and an electric flame stove having the same. Background Art

[0002] An electric flame stove is an open-flame cooking appliance that does not use chemical fuels, and can also be said to be a device that makes air catch fire. The electric flame stove applies a high-voltage pulsed power supply to one or more pairs of electrodes, thereby generating a strong electric field between the electrode pairs, causing the air flowing between the electrode pairs to be ionized and heated up, turning into a high-temperature plasma gas flow. The plasma gas flow has a visible flame effect similar to that of a gas stove to heat cookware.

[0003] As a new application of arc plasma, the electric flame stove has many unique features. However, due to the inherent characteristics of air plasma, there will be side effects, mainly including: 1) Ozone and nitrogen oxides with different densities will be mixed in the plasma gas flow generated by arc discharge. Ozone is generated by the combination of oxygen atom free radicals at high temperatures, and nitrogen oxides are generated by the combination of nitrogen atom free radicals and oxygen atom free radicals at high temperatures to produce nitric oxide, and part of the nitric oxide will combine with other oxygen atom free radicals to form nitrogen dioxide. If the emissions of ozone and nitrogen oxides exceed the standard, it may endanger human health. 2) The possible temperature range of the plasma gas flow generated by discharge is extremely wide, from dozens of degrees to tens of thousands of degrees. If not controlled, there is a risk of damage to the cookware. The control of temperature usually adjusts the high-voltage pulse, and this single adjustment method is difficult to achieve rapid temperature adjustment and accurate response. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems in the related art to some extent. For this purpose, an object of the present invention is to provide a temperature-controlled electric flame stove burner head and an electric flame stove having the same.

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

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

[0007] A tray, which is arranged below the panel and hermetically defines an air cavity with the panel;

[0008] A plasma electrode assembly, which is arranged in the electrode sheath;

[0009] A fan, which is arranged at the bottom of the tray and is used to blow air into the air cavity, and make the air enter the electrode sheath and then blow out from the flame port.

[0010] In addition, the temperature-controlled electric flame burner head according to the above embodiments of the present invention may further have the following additional technical features:

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

[0012] According to an embodiment of the present invention, the electrode seat includes an electrode base and an electrode top seat. The electrode base is fixed on the support plate, and the electrode base has a first through hole; the electrode top seat is detachably connected to the electrode base, and the electrode top seat 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 column is inserted through the third through hole, and the lower end of the anode column is inserted into the first through hole. The cathode spiral coil is sleeved in the second through hole.

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

[0015] According to an embodiment of the present invention, the bottom of the support plate has an air inlet. The periphery of the air inlet protrudes downward to form an air duct; the fan is installed on the air duct, and the air outlet side of the fan faces the air duct.

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

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

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

[0019] A power supply module for converting alternating current into direct current;

[0020] A fan drive circuit connected to the fan for driving the fan;

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

[0022] A PWM control module. The PWM control module is connected to the fan drive circuit and the high-voltage pulse drive circuit for controlling and adjusting the rotation speed of the fan and the high-voltage pulse output by the high-voltage pulse drive circuit.

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

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

[0025] According to an embodiment of the present invention, it further includes a temperature sensor, which 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 within the target temperature range.

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

[0027] According to the temperature-controlled electric flame stove burner head and the electric flame stove having the same provided by the embodiment of the present invention, air is blown into the air cavity by a fan, and then the air passes through the electrode sheath and is blown out from the flame outlet, so as to assist in realizing temperature control. In practical applications, combined with the high-voltage pulse adjustment control method, the temperature of the burner head can be effectively controlled within the target range, for example, between 600 and 1300 °C. In this way, not only the stability of the heating process of the burner head is ensured, but also the generation of ozone and nitrogen oxides can be significantly reduced at a lower temperature, thereby improving environmental friendliness and use safety. In addition, this method of combining the fan and the high-voltage pulse adjustment has the characteristics of rapid adjustment and accurate and reliable temperature control.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0030] Figure 1 is a schematic structural diagram of the temperature-controlled electric flame stove burner head according to an embodiment of the present invention;

[0031] Figure 2 is a sectional view of the temperature-controlled electric flame stove burner head according to an embodiment of the present invention;

[0032] Figure 3 is Figure 2 The partial enlarged view of location A in

[0033] Figure 4 is the exploded view of the temperature-controlled electric flame burner head according to the embodiment of the present invention;

[0034] Figure 5 is the structural schematic diagram of the electric flame stove according to the embodiment of the present invention;

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

[0036] Reference numerals:

[0037] 10, Panel;

[0038] 101, Electrode sheath;

[0039] H101, Flame port;

[0040] 102, Positioning retaining ring;

[0041] 20, Support plate;

[0042] 201, Air duct;

[0043] 30, Plasma electrode assembly;

[0044] 301, Anode column;

[0045] 302, Cathode helical coil;

[0046] 31, Electrode base;

[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 implementation, functional features, and advantages of the present invention will be further described in conjunction with embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0059] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

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

[0061] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0062] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0064] The temperature-controlled electric flame burner head according to an embodiment of the present invention and an electric flame stove having the same will be described in detail below with reference to the accompanying drawings.

[0065] Refer to Figures 1 to 4 As shown, the temperature-controlled electric flame burner head according to an embodiment of the present invention includes a panel 10, a support plate 20, a plasma electrode assembly 30 and a fan 40.

[0066] Specifically, the panel 10 has an upwardly protruding electrode sheath 101, and the upper end of the electrode sheath 101 has a flame port H101, which serves to guide the flame and control the flame spraying position. Exemplarily, there are usually multiple electrode sheaths 101, and the multiple electrode sheaths 101 are arranged in an array on the panel 10. For example, the multiple electrode sheaths 101 are arranged in a circular array, and the multiple electrode sheaths 101 can form multiple flame spraying points to achieve uniform heating. Preferably, the electrode sheath 101 and the panel 10 are made of the same material (such as stainless steel), and are formed as an integral structure.

[0067] The support plate 20 is provided below the panel 10 and seals with the panel 10 to define an air cavity therebetween. The support plate 20 is usually made of a metal material, such as stainless steel, aluminum alloy, etc. Exemplarily, both the support plate 20 and the panel 10 are circular, and the support plate 20 and the panel 10 are combined in the up-and-down direction to form a sealed structure, thereby defining a circular air cavity, which is used to introduce external air through the fan 40 and blow the air into the electrode sheath 101.

[0068] The plasma electrode assembly 30 is provided inside the electrode sheath 101. In a specific application, the plasma electrode assembly 30 is connected to a high-voltage pulse driving circuit 52. By providing a high-voltage pulse through the high-voltage pulse driving circuit 52, a strong electric field is generated when the high-voltage pulse is applied to the plasma electrode assembly 30, so that the air flowing between the electrodes is ionized and heated, and is transformed into a high-temperature plasma gas flow to form an electric flame.

[0069] A fan 40 is provided at the bottom of the pallet 20 and is configured to blow air into the air cavity, so that the air enters the electrode sheath 101 and then blows out from the flame port H101. By using the fan 40 to supply air into the air cavity, the air in the air cavity flows into the electrode sheath 101 and then sprays out from the flame port H101 of the electrode sheath 101. During this process, the cold air flowing in from the outside cools down the plasma electrode assembly 30 in the electrode sheath 101, making the overall temperature control process more rapid, accurate and reliable. In practical applications, the fan 40 cooperates with the high-voltage pulse regulation and control to achieve more reliable temperature regulation.

[0070] According to the temperature-controlled electric flame stove burner head provided by the embodiment of the present invention, the fan 40 is used to blow air into the air cavity, and then the air passes through the electrode sheath 101 and blows out from the flame port H101, thereby assisting in realizing temperature control. In practical applications, combined with the high-voltage pulse regulation and control method, the temperature of the burner head can be effectively controlled within the target range, for example, between 600 and 1300 °C. In this way, not only the stability of the heating process of the burner head is ensured, but also the generation of ozone and nitrogen oxides can be significantly reduced at a lower temperature, thereby improving the environmental friendliness and use safety. In addition, this method of combining the fan 40 and the high-voltage pulse regulation has the characteristics of rapid adjustment and accurate and reliable temperature control.

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

[0072] In this embodiment, by providing the electrode seat 31 in the air cavity and coaxially installing the anode column 301 and the cathode spiral coil 302 thereon, the stable fixation of the plasma electrode assembly 30 is effectively realized. The configuration of the anode column 301 and the cathode spiral coil 302 ensures good discharge characteristics and uniform electric field distribution, and at the same time, under the high-voltage pulse regulation, the temperature control and adjustment are realized.

[0073] Refer to Figures 2 to 4 As shown, in an embodiment of the present invention, the electrode seat 31 includes an electrode base 311 and an electrode top seat 312. The electrode base 311 is fixed on the pallet 20, and the electrode base 311 has a first through hole H3a. The electrode top seat 312 is detachably connected to the electrode base 311, that is, the electrode top seat 312 and the electrode base 311 adopt a plug-in connection method, which is convenient for assembly, maintenance and replacement, etc.

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

[0075] In the specific assembly process, the anode column 301 can be first inserted into the third through hole H3c, and then the cathode spiral coil 302 is inserted into the second through hole H3b, so as to install the anode column 301 and the cathode spiral coil 302 on the electrode top base 312. Then, the electrode top base 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, and the assembly of the entire burner head can be realized.

[0076] With the above structure, the electrode base 311 and the electrode top base 312 are connected in a pluggable manner, and the anode column 301 and the cathode spiral coil 302 can also be inserted and installed on the electrode top base 312. In this way, rapid assembly between various components can be achieved, and it is also convenient for maintenance and replacement. In addition, the coaxial installation between the anode column 301 and the cathode spiral coil 302 is ensured, thereby ensuring the uniformity and stability of the electric flame generated by the plasma electrode assembly 30.

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

[0078] During the installation process, after the anode column 301 and the cathode spiral coil 302 are installed on the electrode top base 312 and the electrode top base 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 base 312 can be automatically inserted into the positioning retaining ring 102 to realize the positioning and fixing of the electrode top base 312.

[0079] Through the cooperation between the electrode top base 312 and the positioning retaining ring 102, it is ensured that the plasma electrode assembly 30 is kept stable. In addition, the pluggable connection method is also convenient for assembly and maintenance.

[0080] Preferably, an air vent or an air passage with other structures for allowing air to flow into the electrode sheath 101 can be provided on the electrode top base 312, as long as it is ensured that air can flow smoothly into the electrode sheath 101.

[0081] Refer to Figure 2 As shown, in an embodiment of the present invention, the bottom of the pallet 20 has an air inlet, and the periphery of the air inlet bulges downward to form an air cylinder 201; the fan 40 is installed on the air cylinder 201, and the air outlet side of the fan 40 faces the air cylinder 201.

[0082] In this embodiment, the air cylinder 201 is provided at the bottom of the pallet 20, and the fan 40 is installed on the air cylinder 201, which facilitates the installation of the fan 40. At the same time, the air cylinder 201 can effectively guide the 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 then disperse into each electrode sheath 101, improving the efficiency and reliability of air supply.

[0083] Preferably, a sealing gasket is provided between the panel 10 and the pallet 20, so that the sealing performance between the panel 10 and the pallet 20 can be improved.

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

[0085] Specifically, the power supply module 50 is used to convert alternating current into direct current. The power supply module 50 provides a stable DC power supply for each module in the entire electric flame stove.

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

[0087] The high-voltage pulse drive circuit 52 is connected to the plasma electrode assembly 30 and is used to drive the plasma electrode assembly 30 to generate an electric flame. The high-voltage pulse drive circuit 52 ensures the generation of a stable electric flame in the plasma electrode assembly 30 through high-frequency and high-voltage pulses.

[0088] The PWM control module 53 is connected to the fan drive circuit 51 and the high-voltage pulse drive circuit 52 and is used to control and adjust the rotation speed of the fan 40 and the high-voltage pulses output by the high-voltage pulse drive circuit 52. That is to say, the PWM control module 53 has two PWM output terminals. One PWM output terminal is connected to the fan drive circuit 51 to control the fan 40, and the other PWM output terminal is connected to the high-voltage pulse drive circuit 52 to control the high-voltage pulses of the plasma electrode assembly 30.

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

[0090] According to the electric flame provided by the embodiment of the present invention, the fan 40 is used to blow air into the air cavity, and then the air passes through the electrode sheath 101 and is blown out from the flame port H101, so as to assist in realizing temperature control. Combined with the high-voltage pulse regulation control method, the temperature of the burner head can be effectively controlled within the target range, for example, between 600 and 1300 °C. In this way, not only the stability of the burner head heating process is ensured, but also the generation of ozone and nitrogen oxides can be significantly reduced at a lower temperature, thereby improving environmental friendliness and use safety. In addition, this method of combining the fan 40 and high-voltage pulse regulation has the characteristics of rapid regulation and accurate and reliable temperature control.

[0091] In an embodiment of the present invention, the electric flame stove further includes a temperature sensor 54, and the temperature sensor 54 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 within the target temperature range.

[0092] In this embodiment, in 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 rotation speed of the fan 40 through the PWM signal to increase the air flow cooling intensity, and at the same time reduces the pulse frequency or amplitude of the high-voltage pulse drive circuit 52, thereby reducing the heat energy input of the flame. On the contrary, when the flame temperature is lower than the target temperature range, the rotation speed of the fan 40 is appropriately reduced, and the high-voltage pulse parameters are adjusted to enhance the heating effect of the flame. The whole control process realizes the rapid response and automatic adjustment of the temperature, ensures that the temperature of the electric flame is stable within the target temperature range, and reduces the generation of ozone and nitrogen oxides.

[0093] Preferably, the target temperature range is 600 to 1300 °C. For an electric flame stove, the concentration of ozone and nitrogen oxides generated by air plasma has a great relationship with the temperature of the plasma, and the high-incidence area is 1800k - 4300k. By controlling the temperature between 600 and 1300 °C, the generation of ozone and nitrogen oxides can be significantly reduced.

[0094] In some embodiments of the present invention, the electric flame stove further includes a resistance regulator, and the resistance regulator 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, there is a fire intensity selection button, which is connected to the PWM control module 53 and is used to adjust the fire power of the electric flame by selecting the type of the fire intensity end. Exemplarily, the type of the fire intensity end may include but is not limited to boiling water, slow cooking, stir-frying, roasting chicken, roasting meat, etc.

[0096] The user can preset the initial fire power of the flame through a resistance regulator at startup; during the working process, the user can adjust the resistance value of the resistance regulator in real time according to needs. The change of this resistance value outputs a corresponding PWM signal through the PWM control module 53, and then changes the high-voltage pulse output by the high-voltage pulse drive circuit 52, and finally enables the electric flame to achieve fine adjustment of the fire power within the target temperature range, such as 600 °C, 800 °C, 1000 °C, etc. In this way, while controlling the temperature within the target temperature range, the user's demand for temperature range adjustment is satisfied.

[0097] Alternatively, the user operates through the fire intensity selection button to select the required type of the fire intensity end. There are multiple preset types of the fire intensity end, and the user can select different types of the fire intensity end according to actual cooking needs. Each type of the fire intensity end corresponds to preset control parameters and high-voltage pulse output configurations, so that the heat energy release, fire power and temperature distribution of the electric flame can adapt to different cooking scenarios. The user only needs to select the corresponding fire intensity type, and the electric flame stove automatically switches the working mode through the built-in PWM control module 53 to achieve intelligent adjustment of the fire power. Of course, this selective adjustment by the button is also an adjustment within the target temperature range. Therefore, the low content of ozone and nitrogen oxides can still be maintained.

[0098] Adopting the above adjustment methods of the resistance regulator or the fire intensity selection button makes the adjustment of the fire power of the flame more convenient and flexible, meeting the user's demand for fire power adjustment. At the same time, combined with the temperature feedback control by the PWM control module 53, the temperature is limited within the target temperature range. Thus, it is achieved that both the generation of ozone and nitrogen oxides is reduced and the user's demand for temperature adjustment is satisfied.

[0099] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0100] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present invention.

Claims

1. A temperature-controlled electric flame burner head, characterized in that, Comprising: A panel, on which an upwardly protruding electrode sheath is provided, and the upper end of the electrode sheath has a flame port; A pallet, which is arranged below the panel and hermetically defines an air cavity with the panel; A plasma electrode assembly, which is arranged inside the electrode sheath; A fan, which is arranged at the bottom of the pallet and is used to blow air into the air cavity, and makes the air enter the electrode sheath and then blow out from the flame port.

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

3. The temperature-controlled electric flame burner according to claim 2, characterized in that, The electrode seat includes an electrode base and an electrode top seat. The electrode base is fixed on the pallet, and the electrode base has a first through hole; the electrode top seat is detachably connected to the electrode base, and the electrode top seat has a second through hole and a third through hole arranged coaxially, and the diameter of the third through hole is smaller than that of the second through hole; The anode column penetrates through the third through hole, and the lower end of the anode column is inserted into the first through hole, and the cathode spiral coil is sleeved in the second through hole.

4. The temperature-controlled electric flame burner head according to claim 3, characterized in that, A positioning retaining ring is arranged on the bottom surface of the panel. 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 to position and fix the electrode top seat through the positioning retaining ring.

5. The temperature-controlled electric flame burner head according to claim 1, characterized in that, The bottom of the pallet has an air inlet, and the peripheral edge of the air inlet protrudes downward to form a wind cylinder; the fan is installed on the wind cylinder, and the air outlet side of the fan faces the wind cylinder.

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

7. An electric flame stove, characterized in that, Comprising: The temperature-controlled electric flame burner according to any one of claims 1 to 6; A power module for converting alternating current into direct current; A fan driving circuit, connected to the fan, for driving the fan; A high-voltage pulse driving circuit, connected to the plasma electrode assembly, for driving the plasma electrode assembly to generate an electric flame; A PWM control module, which is connected to the fan driving circuit and the high-voltage pulse driving circuit, for controlling and adjusting the rotation speed of the fan and the high-voltage pulse output by the high-voltage pulse driving circuit.

8. The electric flame stove according to claim 7, wherein It further includes a resistance regulator, which is connected to the PWM control module, for adjusting the firepower of the electric flame by changing the resistance value of the resistance regulator; Alternatively, a fire intensity selection button, which is connected to the PWM control module, for adjusting the firepower of the electric flame by selecting the type of the fire intensity end.

9. The electric flame stove according to claim 7, characterized in that, It further includes a temperature sensor, which is used to detect the temperature of the electric flame. The PWM control module is connected to the temperature sensor, and when the temperature of the electric flame exceeds the target temperature range, it actively adjusts the control of the fan and the high-voltage pulse to limit the temperature of the electric flame within 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.

Images