Radiation-proof furnace end and electric flame stove

Abstract

The utility model discloses an anti-radiation furnace end which comprises a furnace end shell, a furnace end bottom plate, an air inlet fan arranged on the furnace end bottom plate and a plurality of electrode assemblies. The electrode assembly is assembled in an abutting mode or a clamping mode without additional threaded connection or welding and other connection modes, the working procedures can be reduced in the production and manufacturing process, particularly, the ceramic tube does not need to be manually engraved with threads, and the electrode needle does not loosen in the using process; the furnace end shell and the furnace end bottom plate are fixed through the bolts, so that the whole electrode assembly is fixed to the corresponding position of the furnace end, all accessories of the electrode assembly do not need to be additionally and independently installed and fixed, the structure of the furnace end is simplified, the dismounting and mounting efficiency of the furnace end is improved, and the manufacturing cost can be saved in production; the fire spraying pipe, the furnace end shell and the furnace end bottom plate define a shielding cover body, electromagnetic wave radiation generated when the electrode needle discharges is reflected or absorbed, and magnetic leakage is prevented from influencing a circuit or a close-range human body.

Description

Technical Field

[0001] This utility model specifically relates to a radiation-proof burner head for an electric flame stove. Background Technology

[0002] The electric flame stove is a new type of stove that uses electrical energy to convert into a high-temperature plasma "flame" to heat the cookware, satisfying the Chinese cooking habits.

[0003] The electric flame stove is a new type of stove that uses electrical energy to convert into a high-temperature plasma "flame" to heat the cookware, satisfying the Chinese cooking habits.

[0004] For example, patent CN221005149U discloses a furnace head comprising: a furnace chamber, several ceramic tubes, an electrode needle disposed in the middle of the ceramic tubes, and several flame tubes for generating electrical return current with the electrode needles; the lower end of each ceramic tube has a hollow mounting groove, through which the electrode needles pass and are electrically connected to an external power source for the furnace head. In this patent, the electrode needles are threaded to the mounting groove at the lower end of the ceramic tubes; however, during later transportation or user use, the electrode needles are prone to loosening, affecting normal operation.

[0005] For example, patent application number CN202410091266.5 proposes a structurally optimized plasma generator and an electric flame stove burner head, including an anode cylindrical platform, a ceramic tube, and a cathode contraction tube; the ceramic tube is a cylinder with open ends that communicate with each other, and the lower end of the ceramic tube has an annular groove, into which the anode cylindrical platform is embedded; a conical arc-inducing cone is provided at the center of the anode cylindrical platform, and the arc-inducing cone extends into the inner cavity of the ceramic tube; the cathode contraction tube is a cylinder, and the lower end of the cathode contraction tube has an annular cathode arc-inducing end, which is embedded in the upper end of the ceramic tube; it also proposes an electric flame stove burner head, including multiple plasma generators, as well as a burner head plate and a gas collection box.

[0006] The aforementioned existing technology for the discharge anode cylindrical platform does not require threaded connections or welding, thus simplifying assembly, reducing labor costs, and improving production efficiency. Furthermore, the cathode shrink tube and furnace head plate, being made of metal, absorb some electromagnetic waves, reducing the impact of electromagnetic radiation on the human body. However, the gas collecting box in contact with the anode column uses mica or ceramic as insulation. When the electrodes discharge at high voltage, electromagnetic radiation is generated. Due to the poor heat insulation effect of mica or ceramic plates, electromagnetic waves can penetrate them and leak downwards towards the furnace head. Simultaneously, in actual experiments and applications, electromagnetic radiation severely affects the heat dissipation of the high-voltage circuit, causing overheating of electronic components and ultimately damaging them.

[0007] The aforementioned existing technology for the discharge anode cylindrical platform does not require threaded connections or welding, thus simplifying assembly, reducing labor costs, and improving production efficiency. Furthermore, the cathode shrink tube and furnace head plate, being made of metal, absorb some electromagnetic waves, reducing the impact of electromagnetic radiation on the human body. However, the gas collecting box in contact with the anode column uses mica or ceramic as insulation. When the electrodes discharge at high voltage, electromagnetic radiation is generated. Due to the poor heat insulation effect of mica or ceramic plates, electromagnetic waves can penetrate them and leak downwards towards the furnace head. Simultaneously, in actual experiments and applications, electromagnetic radiation severely affects the heat dissipation of the high-voltage circuit, causing overheating of electronic components and ultimately damaging them. Utility Model Content

[0008] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0009] A radiation-proof burner includes a burner shell, a burner base plate, an air intake fan disposed on the burner base plate, and multiple electrode assemblies, wherein the burner shell and the burner base plate form a burner cavity;

[0010] The electrode assembly includes a flame tube, an upper ceramic tube, a lower ceramic tube, and an electrode needle. The lower end of the electrode needle is provided with a limiting ring. The bottom of the upper ceramic tube is closed and a mounting ring is provided below its bottom. An electrode hole is provided at the center of the bottom of the upper ceramic tube. The upper end of the electrode needle passes through the electrode hole upward. The limiting ring is sleeved inside the mounting ring and abuts against the bottom of the upper ceramic tube.

[0011] The bottom of the lower ceramic tube is closed and a connecting tube is provided on the back of its bottom. The mounting ring is fitted into the lower ceramic tube and the limiting ring on the electrode needle abuts against the bottom of the lower ceramic tube. The connecting tube has an internal power connection channel that connects to the lower ceramic tube.

[0012] Preferably, at least one air inlet is provided at the bottom of the upper ceramic tube, and the air inlet connects the upper ceramic tube and the interior of the furnace head cavity;

[0013] Preferably, the burner housing is provided with a plurality of first mounting holes, the upper end of the flame pipe extends upward through the first mounting holes and the lower end of the flame pipe abuts against the edge of the first mounting hole of the burner housing;

[0014] Preferably, the upper end face of the upper ceramic tube abuts against the lower end face of the flamethrower tube;

[0015] Preferably, the burner head base plate is provided with a plurality of second mounting holes corresponding to the first mounting holes, and the connecting pipe passes through the second mounting holes and extends downwards, so that the lower ceramic tube abuts against the edge of the second mounting hole of the burner head base plate;

[0016] Preferably, the upper end of the electrode needle is conical, and it does not contact the flame tube that serves as the circuit return flow.

[0017] Preferably, the air inlet is inclined, and the moving gas is introduced into the upper ceramic tube through the air inlet to form a rotating airflow;

[0018] Preferably, the flamethrower tube is conical in shape, with a constricted nozzle at the outlet.

[0019] Preferably, both the burner head shell and the burner head base plate are made of stainless steel conductors;

[0020] This utility model also proposes an electric flame stove, including the radiation-proof burner head described in any of the above claims.

[0021] Compared with the prior art, the advantages of this utility model are:

[0022] 1. The electrode assembly is assembled entirely by contact and snap-fit, without the need for additional threaded or welded connections. This reduces the number of steps in the manufacturing process. In particular, the ceramic tube does not require manual threading, and the electrode needles will not loosen during use.

[0023] 2. Bolts are used to fix the furnace head shell and the furnace head base plate, so that the entire electrode assembly is fixed in the corresponding position of the furnace head. There is no need to install and fix each component of the electrode assembly separately. The structure of the furnace head is simplified, the efficiency of furnace head disassembly and assembly is improved, and manufacturing costs can be saved in production.

[0024] 3. The flame tube, the furnace head shell, and the furnace head bottom plate are combined to form a shielding cover, which reflects or absorbs the electromagnetic radiation generated when the electrode needle discharges, preventing leakage magnetic field from affecting the circuit or the human body at close range.

[0025] 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

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 This is an exploded view of the electrode assembly.

[0028] Figure 2 This is a cross-sectional view of the stove head.

[0029] Figure 3 yes Figure 2 A magnified view of circle A in the middle. Detailed Implementation

[0030] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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; they can refer to the internal connection of two components; they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] Please see Figures 1-3 In this embodiment of the present invention, a radiation-proof stove head includes a stove head shell 1, a stove head bottom plate 2, an air intake fan 3 disposed on the stove head bottom plate 2, and multiple electrode assemblies. The stove head shell 1 and the stove head bottom plate 2 form a stove head cavity.

[0035] In this embodiment, if Figure 1 and Figure 3 As shown, the electrode assembly includes a flame tube 41, an upper ceramic tube 42, a lower ceramic tube 43, and an electrode needle 44. The lower end of the electrode needle 44 is provided with a limiting ring 441. The bottom of the upper ceramic tube 42 is closed and a mounting ring 421 is provided below its bottom. An electrode hole 422 is provided at the center of the bottom of the upper ceramic tube 42. The upper end of the electrode needle 44 passes through the electrode hole 422 upward. The limiting ring 441 is sleeved in the mounting ring 421 and abuts against the bottom of the upper ceramic tube 42.

[0036] The bottom of the lower ceramic tube 43 is closed and a connecting tube 431 is provided on the back of its bottom. The mounting ring 421 is fitted into the lower ceramic tube 43 and the limiting ring 441 on the electrode needle 44 abuts against the bottom of the lower ceramic tube 43. The connecting tube 431 has an internal power connection channel that connects to the lower ceramic tube 43. The lower ceramic tube 43 and the connecting tube 431 provide a power connection channel for the electrode needle 44 to connect to a high-voltage power supply. Usually, a liftable elastic connecting pin is used for connection, which is convenient for disassembly and assembly. At the same time, the lower ceramic tube 43 and the connecting tube 431 avoid the arcing phenomenon between the electrode needle 44 or the connecting pin and the furnace head bottom plate 2.

[0037] In this invention, the electrode assembly is assembled entirely by abutment and snap-fit, without the need for additional threaded or welded connections. This reduces the number of steps in the manufacturing process. In particular, the ceramic tube does not require manual threading, and the electrode needle 44 will not loosen during use.

[0038] In another embodiment, the burner housing 1 is provided with a plurality of first mounting holes 11, the upper end of the flame tube 41 extends upward through the first mounting holes 11 and the lower end of the flame tube 41 abuts against the edge of the first mounting hole 11 of the burner housing 1; the upper end face of the upper ceramic tube 42 abuts against the lower end face of the flame tube 41; the burner base plate 2 is provided with a plurality of second mounting holes 21 corresponding to the first mounting holes 11, the connecting pipe 431 passes through the second mounting holes 21 and extends downward, and the lower ceramic tube 43 abuts against the edge of the second mounting hole 21 of the burner base plate 2.

[0039] Specifically, the burner head shell 1 and the burner head base plate 2 are fixedly connected by bolts, and the distance between them is equal to or similar to the distance from the lower end of the flame tube 41 to the bottom of the lower ceramic tube 43. Bolting the burner head shell 1 and the burner head base plate 2 fixes the entire electrode assembly to the corresponding position on the burner head, eliminating the need for separate installation and fixing of each component of the electrode assembly. This simplifies the burner head structure, improves the efficiency of burner head assembly and disassembly, and saves manufacturing costs during production.

[0040] In another embodiment, the upper end of the electrode needle 44 is conical and does not contact the flame tube 41, which serves as the circuit return current. After the electrode needle 44 is connected to a high voltage, a high voltage difference is generated between the electrode needle 44 and the flame tube 41, which can break down the gas to maintain conductivity and ionize the gas to form a high-temperature plasma.

[0041] In this embodiment, at least one air inlet 423 is provided at the bottom of the upper ceramic tube 42, and the air inlet 423 connects the upper ceramic tube 42 and the interior of the furnace head cavity; in another embodiment, the air inlet 423 is inclined, and the moving gas is introduced into the upper ceramic tube 42 through the air inlet 423 to form a rotating airflow.

[0042] Specifically, the intake fan 3 dissipates heat from the components inside the furnace head cavity. Once the gas reaches a certain pressure, it is introduced into the upper ceramic tube 42 through the intake port 423. The moving gas forms a rotating airflow, which avoids affecting the normal discharge of the electrodes. The aerodynamic force of the rotating airflow propels the plasma towards the flame tube 41.

[0043] In another embodiment, the flame tube 41 is conical with a constricted nozzle at its ejection end. When the plasma moves to the constricted ejection end of the flame tube 41, its speed increases, making it a working medium for forming an effective jet.

[0044] In another embodiment, the burner housing 1 and the burner base plate 2 are both stainless steel conductors. The flame pipe 41, the burner housing 1 and the burner base plate 2 together form a shield to reflect or absorb the electromagnetic radiation generated when the electrode needle 44 discharges, preventing leakage magnetic field from affecting the circuit or the human body at close range.

[0045] This utility model also proposes an electric flame stove, including the radiation-proof burner head of any of the above-mentioned components.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A radiation-proof burner head, comprising a burner head shell, a burner head base plate, an air intake fan disposed on the burner head base plate, and multiple electrode assemblies, wherein the burner head shell and the burner head base plate form a burner head cavity; characterized in that: The electrode assembly includes a flame tube, an upper ceramic tube, a lower ceramic tube, and an electrode needle. The lower end of the electrode needle is provided with a limiting ring. The bottom of the upper ceramic tube is closed and a mounting ring is provided below its bottom. An electrode hole is provided at the center of the bottom of the upper ceramic tube. The upper end of the electrode needle passes through the electrode hole upward. The limiting ring is sleeved inside the mounting ring and abuts against the bottom of the upper ceramic tube. The bottom of the lower ceramic tube is closed and a connecting tube is provided on the back of its bottom. The mounting ring is fitted into the lower ceramic tube and the limiting ring on the electrode needle abuts against the bottom of the lower ceramic tube. The connecting tube has an internal power connection channel that connects to the lower ceramic tube. At least one air inlet is provided at the bottom of the upper ceramic tube, which connects the upper ceramic tube and the interior of the furnace head cavity.

2. The radiation-proof stove head according to claim 1, characterized in that, The burner head shell is provided with a number of first mounting holes, the upper end of the flame tube extends upward through the first mounting holes and the lower end of the flame tube abuts against the edge of the first mounting hole of the burner head shell.

3. The radiation-proof stove head according to claim 2, characterized in that, The upper ceramic tube abuts against the lower end of the flamethrower tube.

4. The radiation-proof stove head according to claim 3, characterized in that, The burner head base plate is provided with several second mounting holes corresponding to the first mounting holes. The connecting pipe passes through the second mounting holes and extends downwards, so that the lower ceramic tube abuts against the edge of the second mounting hole of the burner head base plate.

5. The radiation-proof stove head according to claim 4, characterized in that, The upper end of the electrode needle is conical, and it does not contact the flame tube that serves as the circuit return flow.

6. The radiation-proof stove head according to claim 5, characterized in that, The air inlet is inclined, and the moving gas is introduced into the upper ceramic tube through the air inlet to form a rotating airflow.

7. The radiation-proof stove head according to claim 6, characterized in that, The flamethrower tube is conical in shape, with a constricted nozzle at the outlet.

8. The radiation-proof stove head according to claim 7, characterized in that, Both the furnace head shell and the furnace head base plate are made of stainless steel conductors.

9. An electric flame stove, characterized in that, Including the radiation-proof stove head as described in any one of claims 1-8.

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