Structure of burner head and electric flame stove

Abstract

The present invention discloses a structure of a burner head and an electric flame stove, which includes a first furnace plate, a second furnace plate, a third furnace plate, a fourth furnace plate and a plurality of anode needles. The second furnace plate and a plurality of ceramic tubes are a ceramic structure integrally formed, the third furnace plate and a plurality of connecting tubes are a ceramic structure integrally formed, and the first furnace plate and a plurality of cathode nozzles are a stainless steel structure integrally formed. The burner head structure of the present invention integrates a number of accessories on the first furnace plate, the second furnace plate, the third furnace plate and the fourth furnace plate, greatly simplifies the structure, facilitates the assembly and maintenance of the burner head structure, and reduces the manufacturing difficulty and cost.

Description

Technical Field

[0001] The present invention relates to a structure of a burner head, and more particularly to an electric flame stove. Background Art

[0002] An arc is a gas discharge phenomenon. The arc phenomenon generates high-temperature and highly conductive ionized gas, i.e., plasma. An electric flame stove utilizes high voltage to break down air to form a stable arc, and the generated high-temperature plasma heats the cookware. Currently, for electric flame stoves on the market, the basic working principle is that a voltage conversion module raises low voltage to high voltage and outputs it to a rectifying circuit. The rectifier converts alternating current into direct current and distributes the high-voltage power supply to multiple anode needles for arc ignition. When the anode needles discharge, high-temperature plasma flames are generated, providing a powerful heating capacity for the electric flame stove.

[0003] For example, the patent with the authorization publication (announcement) number CN118532725B proposes an electric flame stove burner head that prevents electromagnetic external radiation and has a firm structure, including a housing, a bottom plate provided at the bottom of the housing, and a plurality of plasma combustion components provided between the housing and the bottom plate. The plasma combustion components include anode needles, a first ceramic tube, a second ceramic tube, and a cathode nozzle.

[0004] For the above-mentioned existing patent, its structure is relatively complex. Each plasma combustion component is composed of four components: an anode needle, a first ceramic tube, a second ceramic tube, and a cathode nozzle. For example, for a commercial electric flame stove with a power of 20KW, at least 200 plasma combustion components are installed, and there are more than 800 components in total. This makes the manufacturing difficulty of the components large, requires a large number of manufacturing processes, resulting in high production costs. At the same time, the numerous components and parts make the installation process extremely complex, and professional technicians need to spend a lot of time and effort for sorting and installation, increasing the installation cost and time cost.

[0005] For the above-mentioned existing patent, there are also problems in terms of performance impact. For example, there is a certain gap when the first ceramic tube is in abutting connection with the second ceramic tube, and the anode needle installed between them may generate an arc through the gap with the bottom plate made of stainless steel material, which affects the normal use of the electric flame stove. Summary of the Invention

[0006] The present invention aims to provide a technical solution to solve the above problems in order to overcome the above situations.

[0007] A structure of a burner head includes a first furnace plate, a second furnace plate, a third furnace plate, a fourth furnace plate, and a plurality of anode needles. The first furnace plate and the fourth furnace plate enclose a cavity of the burner head cavity, and the second furnace plate, the third furnace plate, and the plurality of anode needles are all installed in the burner head cavity;

[0008] A plurality of ceramic tubes corresponding to the anode pins are provided on the lower end surface of the second furnace plate. A limiting ring is provided in the middle section of the ceramic tube. A ring-shaped fixing ring is provided in the middle section of the anode pin. The fixing ring is fitted into the lower end of the ceramic tube, and the upper end of the anode pin passes through the limiting ring and extends upward. The inner diameter of the limiting ring is smaller than the outer diameter of the fixing ring;

[0009] A plurality of connecting tubes corresponding to the ceramic tubes are provided on the lower end surface of the third furnace plate. The connecting tubes provide a channel for electrical connection between the anode pins and the positive electrode ends of the circuit boards below;

[0010] The second furnace plate and the plurality of ceramic tubes are of an integrally formed ceramic structure. The third furnace plate and the plurality of connecting tubes are of an integrally formed ceramic structure;

[0011] Preferably, a plurality of cathode spray nozzles corresponding to the ceramic tubes are provided on the upper end surface of the first furnace plate. The first furnace plate and the plurality of cathode spray nozzles are of an integrally formed stainless steel structure;

[0012] Preferably, at least two positioning bolts are arranged along the circumference on the lower end surface of the first furnace plate. The second furnace plate, the third furnace plate, and the fourth furnace plate are respectively provided with positioning holes two, three, and four corresponding to the positioning bolts;

[0013] Preferably, each set of corresponding cathode spray nozzles, ceramic tubes, anode pins, and connecting tubes constitutes a plasma generator;

[0014] Preferably, the fourth furnace plate is provided with a plurality of through holes corresponding to the connecting tubes. The connecting tubes pass through the through holes and extend downward. The fourth furnace plate is made of stainless steel;

[0015] Preferably, a connecting column for connecting the negative electrode end of the circuit board is further provided on the lower end surface of the fourth furnace plate;

[0016] Preferably, a blower for air intake is installed on the lower end surface of the first furnace plate;

[0017] Preferably, a plurality of air intake holes are provided on the wall of the ceramic tube.

[0018] The present invention also provides an electric flame stove, including the structure of the burner head described in any one of the above.

[0019] Compared with the prior art, the advantages of the present invention are as follows: The first furnace plate, the second furnace plate, the third furnace plate, and the fourth furnace plate of the burner head structure of the present invention integrate multiple accessories, greatly simplifying the structure, facilitating the assembly and maintenance of the burner head structure, and reducing the manufacturing difficulty and cost.

[0020] 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 learned through the practice of the present invention. Brief Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0022] Figure 1 is the structural decomposition diagram of the burner head of the present invention.

[0023] Figure 2 is the three-dimensional view of the second furnace plate of the present invention.

[0024] Figure 3 is the three-dimensional view of the overall structure of the burner head and the circuit board of the present invention. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0027] In addition, in the description of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can also be the communication inside two elements. It can be a wireless connection or a wired connection. 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 situations.

[0028] In addition, the technical features involved in different embodiments of the present invention described subsequently can be combined with each other as long as they do not conflict with each other.

[0029] Please refer to Figures 1 to 2, in the embodiments of the present invention, a structure of a burner head includes a first burner plate 100, a second burner plate 200, a third burner plate 300, a fourth burner plate 400, and a plurality of anode needles 500. The first burner plate 100 and the fourth burner plate 400 enclose a cavity of the burner head cavity, and the second burner plate 200, the third burner plate 300, and the plurality of anode needles 500 are all installed in the burner head cavity.

[0030] In the embodiments of the present invention, a plurality of ceramic tubes 210 corresponding to the anode needles 500 are provided on the lower end surface of the second burner plate 200. A limiting ring 211 provided in the middle section inside the ceramic tube 210 and a fixing ring 510 in the middle section of the anode needle 500 cooperate with each other. Since the inner diameter of the limiting ring 211 is smaller than the outer diameter of the fixing ring 510, when the fixing ring 510 is fitted into the lower end of the ceramic tube 210, the limiting ring 211 restricts the upward movement of the fixing ring 510, so that the upward movement of the anode needle 500 in the vertical direction is restricted. At the same time, the upper end surface of the third burner plate 300 restricts the downward movement of the fixing ring 510. The anode needle 500 is restricted from the upper and lower directions by the limiting ring 211 and the third burner plate 300 in the vertical direction, ensuring that the position of the anode needle 500 in the burner head cavity is accurate and stable. This design ensures that the anode needle 500 will not affect the performance and working effect of the burner head due to shaking, displacement, etc. during the working process of the burner head, so that the anode needle 500 can always be in a suitable working position.

[0031] In the embodiments of the present invention, the upper end of the anode needle 500 passes through the limiting ring 211 and extends upward, and a wind channel is formed between the upper end of the anode needle 500 and the ceramic tube 210. Gas can flow in the wind channel, and the heat generated by the anode needle 500 is taken away through the heat exchange effect of the gas, so as to dissipate heat and cool the anode needle 500 and its surrounding components. At the same time, the gas after heat exchange provides sufficient working medium for generating high-temperature plasma.

[0032] In the embodiments of the present invention, the second burner plate 200 and the plurality of ceramic tubes 210 are integrally formed ceramic structures, the third burner plate 300 and the plurality of connecting tubes 310 are integrally formed ceramic structures, and the first burner plate 100 and the plurality of cathode nozzles 110 are integrally formed stainless steel structures. This integrated overall structure greatly simplifies the burner head structure and reduces a large number of components. It not only greatly reduces the complexity in the production and manufacturing process, but also facilitates the assembly operation of workers, reducing the assembly difficulty and the difficulty of accessory management.

[0033] Such as Figure 1 and Figure 3As shown, in the embodiment of the present invention, the fourth furnace plate 400 is provided with a plurality of through holes 410 corresponding to the connecting pipes 310. The connecting pipes 310 pass through the through holes 410 and extend downward. The anode pins 500 are electrically connected to the positive electrode end of the lower circuit board 700 through the inside of the connecting pipes 310. Since there is no gap in the integrally formed structure of the third furnace plate 300 and the connecting pipes 310, it can prevent the abnormal distribution of the electric field between the anode pins 500 and the fourth furnace plate 400 through the gap, thereby avoiding the arcing phenomenon between the anode pins 500 and the fourth furnace plate 400 due to excessive electric field strength.

[0034] In the embodiment of the present invention, the positioning bolts 120 of the first furnace plate 100 pass through the second positioning holes 220, the third positioning holes 320, and the fourth positioning holes 420 respectively, so that each group of corresponding cathode nozzles 110, ceramic tubes 210, anode pins 500, and connecting pipes 310 can be accurately positioned, thereby forming a plasma generator. Finally, the positioning bolts 120 are fixed by nuts in a threaded manner, and the first furnace plate 100, the second furnace plate 200, the third furnace plate 300, and the fourth furnace plate 400 are tightly connected together, making the furnace head form a whole. This fixing method enhances the integrity and stability of the furnace head structure, ensuring that the relative positions of the components remain unchanged during the working process.

[0035] As Figure 3 shown, in the embodiment of the present invention, the connecting posts 430 on the lower end surface of the fourth furnace plate 400 can electrically connect the fourth furnace plate 400, the first furnace plate 100, and the cathode nozzles 110 to the negative electrode end of the circuit board 700, forming a complete circuit loop. The setting of the connecting posts 430 not only realizes electrical connection but also plays a role in mechanical fixation, tightly combining the furnace head with the circuit board 700, making the furnace head operate more stably and reliably during the working process.

[0036] As Figure 1 shown, in the embodiment of the present invention, a blower 600 for air intake is installed on the lower end surface of the fourth furnace plate 400. The blower 600 introduces external air into the furnace head, providing a necessary gas source for the operation of the furnace head. A plurality of air intake holes 212 are provided on the wall of the ceramic tube 210, and the air intake holes 212 enable the air introduced by the blower 600 to enter the air duct inside the plasma generator. On the one hand, the air entering the air duct can participate in the heat dissipation and cooling process of components such as the anode pins 500, improving the heat dissipation efficiency; on the other hand, the air entering the air duct can provide sufficient gas for the anode pins 500 to discharge and ionize the air to form enough plasma.

[0037] As Figures 1 to 2As shown in the figure, the structure of the burner head of the present invention mainly consists of a first burner plate 100, a second burner plate 200, a third burner plate 300, a fourth burner plate 400, and a plurality of anode needles 500 for discharging. Among them, the first burner plate 100, the second burner plate 200, the third burner plate 300, and the fourth burner plate 400 of the burner head structure of the present invention integrate a number of accessories. Therefore, it can be mass-produced by molds, and the subsequent installation process is simple. The installation steps of the burner head of the present invention mainly include:

[0038] S1. Pass the upper ends of a plurality of anode needles 500 through the corresponding limiting rings 211 of the second burner plate 200, and make the fixing rings 510 of the anode needles 500 fit into the lower ends of the ceramic tubes 210;

[0039] S2. Pass the positioning bolts 120 on the first burner plate 100 through the corresponding second positioning holes 220, third positioning holes 320, and fourth positioning holes 420, so that the corresponding cathode nozzles 110, ceramic tubes 210, anode needles 500, and connecting tubes 310 are accurately positioned and form a plasma generator;

[0040] S3. Fix the positioning bolts 120 by threading nuts to fix the structure of the burner head.

[0041] Compared with the numerous and complicated burner head accessories in the prior art, the burner head of the present invention only requires core components such as the first burner plate 100, the second burner plate 200, the third burner plate 300, the fourth burner plate 400, and a plurality of anode needles 500, greatly simplifying the structure. Therefore, the burner head of the present invention is convenient for assembly and maintenance, reducing the manufacturing difficulty and cost.

[0042] The present invention also proposes an electric flame stove, including the structure of the burner head described in any one of the above technical solutions.

[0043] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A furnace head structure, comprising a first furnace plate, a second furnace plate, a third furnace plate, a fourth furnace plate and a plurality of anode needles, characterized in that: The first furnace plate and the fourth furnace plate together form a hollow furnace head cavity, and the second furnace plate, the third furnace plate and the plurality of anode needles are all installed in the furnace head cavity; The lower end surface of the second furnace plate is provided with a plurality of ceramic tubes corresponding to the anode needles, a limiting ring is provided in the middle section of the ceramic tube, and an annular fixing ring is provided in the middle section of the anode needle, the fixing ring is embedded in the lower end of the ceramic tube, and the upper end of the anode needle passes through the limiting ring and extends upward, and the inner diameter of the limiting ring is smaller than the outer diameter of the fixing ring; The lower end surface of the third furnace plate is provided with a plurality of connecting tubes corresponding to the ceramic tubes, and the connecting tubes provide a channel for electrical connection between the anode needle and the anode end of the circuit board below; At least two positioning bolts are arranged around the lower end surface of the first furnace plate, and the second furnace plate, the third furnace plate and the fourth furnace plate are respectively provided with positioning holes 2, 3 and 4 corresponding to the positioning bolts; The second furnace plate and the plurality of ceramic tubes are an integrally formed ceramic structure, and the third furnace plate and the plurality of connecting tubes are an integrally formed ceramic structure.

2. The structure of the burner head according to claim 1, characterized in that: A plurality of cathode nozzles corresponding to the ceramic tubes are disposed on the upper end surface of the first furnace plate, and the first furnace plate and the plurality of cathode nozzles are an integrally formed stainless steel structure.

3. The structure of the furnace head according to claim 2, characterized in that: Each set of corresponding cathode nozzles, ceramic tubes, anode needles and connecting tubes constitutes a plasma generator.

4. The structure of the burner head according to claim 1, characterized in that: The fourth furnace plate is provided with a plurality of through holes corresponding to the connecting pipes, the connecting pipes extend downward through the through holes, and the fourth furnace plate is made of stainless steel.

5. The structure of the burner head according to claim 1, characterized in that: The lower end surface of the fourth furnace plate is also provided with a connecting column connected to the cathode end of the circuit board.

6. The structure of the furnace head according to claim 1, characterized in that: A blower for air intake is installed on the lower end surface of the first furnace plate.

7. The structure of the burner according to claim 1, characterized in that: A plurality of air inlet holes are arranged on the wall of the ceramic tube.

8. An electric flame cooker, characterized in that: A structure comprising a burner head as claimed in any one of claims 1 to 7.

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