Electric flame stove burner with simplified structure

Abstract

The present invention discloses an electric flame stove burner with a simplified structure, including: an upper burner plate, a middle burner plate, a lower burner plate, and a plurality of ion needles. In the present invention, the limiting piece on the ion needle is installed at the gap between the middle burner plate and the lower burner plate, greatly improving the installation efficiency of the ion needle; the connection end at the tail of the cathode nozzle of the present invention is a funnel-shaped flared opening, and the docking end at the head of the ceramic tube is a conical head, enabling the accurate and efficient docking of the cathode nozzle and the ceramic tube; the upper burner plate of the present invention integrates the cathode nozzle, the middle burner plate integrates the ceramic tube, and the lower burner plate integrates the connecting pipe, making the entire assembly process simple, without the need for complex technology and a large amount of manual operation, and greatly reducing the assembly cost.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to an electric flame stove burner based on plasma heating technology. Background Art

[0002] In the field of kitchen cooking equipment, electric flame stoves are a new type of stove that uses plasma discharge to generate high-temperature flames for cooking. They have the advantages of high efficiency, cleanliness, and safety, and have attracted much attention from the market. However, there are still many problems to be solved with electric flame stoves currently on the market.

[0003] For example, the patent with the authorization disclosure (announcement) number CN118532725B proposes an electric flame stove burner head that prevents electromagnetic external radiation and has a strong structure, including a shell, a base plate arranged at the bottom of the shell, and a plurality of plasma combustion components arranged between the shell and the base plate, wherein the plasma combustion components include an anode needle, a first ceramic tube, a second ceramic tube and a cathode nozzle.

[0004] The above-mentioned electric flame stove has the following defects: complex structure, the traditional burner adopts abutment design of many burner accessories, which makes assembly difficult and maintenance cost high, and the numerous accessories are inconvenient to manage, which increases labor costs; safety hazards, the connection between the first ceramic tube and the second ceramic tube is poor in air tightness, and arcing is easily caused between the ion needle and the metal base plate; low efficiency, the gas flow in the plasma channel is not smooth, and the flame stability is insufficient.

[0005] Therefore, developing an electric flame stove burner head that can effectively solve the above problems, achieve structural simplification, high safety performance, high cooking efficiency, and good electromagnetic wave shielding is a technical challenge that technical personnel in this field need to overcome. Summary of the invention

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0007] A simplified electric flame stove burner comprises: a burner upper plate, a burner middle plate, a burner lower plate and a plurality of ion needles;

[0008] The lower end surface of the furnace head lower plate is provided with a plurality of connecting tubes with internal cavities, the upper end surface of the furnace head middle plate is provided with a plurality of ceramic tubes with internal cavities, and the ion needles correspond to the connecting tubes and the ceramic tubes one by one;

[0009] An annular limiting plate is arranged in the middle of the ion needle; the upper end of the ion needle extends upward through the inside of the ceramic tube, and the lower end thereof is embedded in the inside of the connecting tube, wherein the limiting plate is installed in the gap between the furnace head middle plate and the furnace head lower plate;

[0010] The upper plate of the burner head is provided with a plurality of cathode nozzles corresponding to the ion needles. The connecting end at the tail of the cathode nozzle is a funnel-shaped flared opening. The docking end at the head of the ceramic tube is a conical head, and the outer diameter of the docking end is larger than the outer diameter of the ceramic tube body.

[0011] Preferably, the present invention further includes an intake fan. The upper plate of the burner head and the middle plate of the burner head enclose to form a furnace cavity, and the intake fan is communicated with the furnace cavity.

[0012] Preferably, a plasma channel is formed between the ion needle and the cathode nozzle. The docking end at the head of the ceramic tube is provided with through holes along the circumference, and the through holes communicate the furnace cavity with the plasma channel.

[0013] Preferably, the upper plate of the burner head is circular, and it is provided with a hem along the circumference. At least two positioning bosses are machined on the inner side of the hem. The middle plate of the burner head and the lower plate of the burner head are respectively provided with a first positioning groove and a second positioning groove along the circumference, and the positioning bosses correspond to the first positioning groove and the second positioning groove one by one.

[0014] Preferably, the upper plate of the burner head and the cathode nozzle are of an integrally formed stainless steel structure, the middle plate of the burner head and the ceramic tube are of an integrally formed ceramic structure, and the lower plate of the burner head and the connecting pipe are of an integrally formed ceramic structure.

[0015] Preferably, the lower end surface of the lower plate of the burner head is covered with a metal layer, and the metal layer is electrically connected to the cathode of the electric circuit of the upper plate of the burner head and the cathode nozzle.

[0016] Preferably, the distance between two adjacent ion needles is greater than a preset distance to prevent the occurrence of arcing between the two ion needles through the gap between the middle plate of the burner head and the lower plate of the burner head.

[0017] Preferably, the positioning boss is internally provided with a thread.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] The limiting piece on the ion needle of the present invention is installed at the gap between the middle plate of the burner head and the lower plate of the burner head, which greatly improves the installation efficiency of the ion needle.

[0020] The connecting end at the tail of the cathode nozzle of the present invention is a funnel-shaped flared opening, while the docking end at the head of the ceramic tube is a conical head, which makes the docking of the cathode nozzle and the ceramic tube accurate and efficient.

[0021] The upper plate of the burner head of the present invention integrates the cathode nozzle, the middle plate of the burner head integrates the ceramic tube, and the lower plate of the burner head integrates the connecting pipe, which makes the whole assembly process simple, without complex technology and a large amount of manual operation, and greatly reduces the assembly cost.

[0022] 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 by practice of the present invention. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the accompanying drawings required for use in the description of the embodiments or the prior art will be briefly introduced below. 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 drawings can be obtained based on these drawings.

[0024] Figure 1 is a structural sectional view of the present invention.

[0025] Figure 2 is Figure 1 an enlarged view of the area within circle A in

[0026] Figure 3 is a structural diagram of the upper plate of the burner head of the present invention.

[0027] Figure 4 is a structural diagram of the middle plate of the burner head of the present invention.

[0028] Figure 5 is a structural diagram of the lower plate of the burner head of the present invention. Detailed Description of the Embodiments

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0030] 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 therefore should not be construed as a limitation of the present invention.

[0031] In addition, in the description of the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", and "coupling" 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 a direct connection or an indirect connection through an intermediate medium, and can also be the communication inside two components. 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 circumstances.

[0032] In addition, the technical features involved in different embodiments of the present invention described hereinafter can be combined with each other as long as they do not conflict with each other.

[0033] Please refer to Figures 1 to 5 , in an embodiment of the present invention, a simplified-structured electro-flame stove burner head includes: an upper burner head plate 1, a middle burner head plate 2, a lower burner head plate 3, and a plurality of ion needles 4.

[0034] In an embodiment of the present invention, a plurality of connecting pipes 31 with internal cavities are provided on the lower end surface of the lower burner head plate 3, and a plurality of ceramic pipes 21 with internal cavities are provided on the upper end surface of the middle burner head plate 2. The ion needles 4 correspond to the connecting pipes 31 and the ceramic pipes 21 one by one; an annular limiting piece 41 is provided in the middle of the ion needle 4; the upper end of the ion needle 4 extends upward through the inside of the ceramic pipe 21, and its lower end is embedded in the inside of the connecting pipe 31. During installation, the assembler only needs to embed the lower end of the ion needle 4 into the connecting pipe 31 of the lower burner head plate 3 and pass the upper end through the ceramic pipe 21 of the middle burner head plate 2, so that the limiting piece 41 naturally falls at the gap between the middle burner head plate 2 and the lower burner head plate 3, and the position of the ion needle 4 can be accurately fixed, avoiding repeated adjustment and positioning operations, greatly improving the installation efficiency, and making the installation process of the ion needle 4 simple and efficient.

[0035] In an embodiment of the present invention, the upper burner head plate 1 is provided with a plurality of cathode nozzles 11 corresponding to the ion needles 4. The connection end 111 at the tail of the cathode nozzle 11 is a funnel-shaped flared opening, and the docking end 211 at the head of the ceramic pipe 21 is a conical head. The outer diameter of the docking end 211 is larger than the outer diameter of the main body of the ceramic pipe 21. During actual assembly of the connection end 111 and the docking end 211, even if there is a slight deviation when the docking end 211 is inserted into the connection end 111, due to the shape characteristics of the cone and the flare, adjustment and self-adaptation can be carried out through the gradually changing gap between the two, so that the docking end 211 can smoothly enter the connection end 111 without causing docking failure due to a slight position deviation.

[0036] Compared with the traditional docking method, the present invention greatly reduces the difficulty of manual centering operation. Workers do not need to spend a lot of time and energy on fine-tuning the position. They only need to bring the docking end 211 close to the connection end 111 to successfully complete the docking, which significantly improves the accuracy and efficiency of the docking process, greatly shortens the time required for assembly, and further improves the overall production efficiency.

[0037] In the embodiment of the present invention, the upper plate 1 of the burner head and the cathode nozzle 11 are integrally formed stainless steel structures, the middle plate 2 of the burner head and the ceramic tube 21 are integrally formed ceramic structures, and the lower plate 3 of the burner head and the connecting tube 31 are integrally formed ceramic structures. The integral forming process of the burner head structure of the present invention not only ensures the structural strength but also greatly simplifies the overall structure of the burner head. Compared with the traditional multi-component splicing design, it reduces a large number of connecting components and splicing processes, and significantly reduces the complexity of the production process. In the production process, molds can be used to manufacture the upper plate 1, the middle plate 2, and the lower plate 3 of the burner head, effectively shortening the production cycle and reducing the production cost; in the installation stage, the installation steps are reduced, and the technical level requirements for installation workers are lowered, making the installation of the burner head more convenient and further improving the overall production and installation efficiency. At the same time, the integral forming structure of the connecting tube 31 integrated in the lower plate 3 of the burner head significantly enhances the insulation performance, establishing an effective insulation barrier between the ion needle 4 and the metal layer 33 on the lower end face of the lower plate 3 of the burner head, preventing the occurrence of arcing between the ion needle 4 and the metal layer 33, and greatly improving the safety performance of the burner head.

[0038] In the next embodiment of the present invention, the present invention further includes an intake fan 5. The upper plate 1 of the burner head and the middle plate 2 of the burner head enclose to form a furnace cavity 6, and the intake fan 5 is communicated with the furnace cavity 6; a plasma channel 7 is formed between the ion needle 4 and the cathode nozzle 11. A through hole 212 is provided along the circumference at the docking end 211 of the head of the ceramic tube 21, and the through hole 212 communicates the furnace cavity 6 with the plasma channel 7. When the burner head of the electric flame stove starts to work, the intake fan 5 starts and sends air into the furnace cavity 6; the gas in the furnace cavity 6 enters the plasma channel 7 through the through holes 212 along the circumference at the docking end 211 of the head of the ceramic tube 21. Since the through holes 212 are in counterflow with the outlet of the cathode nozzle 11, the air flow in the plasma channel 7 is relatively smooth. After the ion needle 4 is energized, a high-voltage electric field is formed between it and the cathode nozzle 11. Under the action of this electric field, the gas in the plasma channel 7 is ionized to generate plasma; the plasma reacts with the incoming gas to generate a high-temperature flame, which is ejected from the cathode nozzle 11 for cooking.

[0039] In the next embodiment of the present invention, the upper plate 1 of the burner head is circular, and a hemming 15 is provided along its circumference. At least two positioning bosses 12 are machined on the inner side of the hemming 15. The middle plate 2 of the burner head and the lower plate 3 of the burner head are respectively provided with a first positioning groove 22 and a second positioning groove 32 along the circumference. The positioning bosses 12 correspond one-to-one with the first positioning groove 22 and the second positioning groove 32, and threads are provided inside the positioning bosses 12. The burner head structure of the present invention is accurately positioned through the positioning bosses 12 and the first positioning groove 22 and the second positioning groove 32, ensuring the accurate installation and stable connection of each component.

[0040] In the next embodiment of the present invention, the distance between two adjacent ion needles 4 is greater than a preset distance, preventing an arcing phenomenon from occurring between the two ion needles 4 through the gap between the middle plate 2 of the burner head and the lower plate 3 of the burner head. By reasonably setting the distance between the ion needles 4, the occurrence of the arcing phenomenon is avoided.

[0041] In the next embodiment of the present invention, a metal layer 33 is covered on the lower end surface of the lower plate 3 of the burner head. The metal layer 33, the upper plate 1 of the burner head, and the cathode nozzle 11 are electrically connected to each other to form a shielding structure. Since the three are electrically connected to the cathode of the circuit, electrons flow on the surface of the metal structure to form an induced current, and the reverse electromagnetic field generated by the induced current cancels the original electromagnetic field generated during the operation of the burner head, effectively shielding the electromagnetic waves generated during the operation of the burner head inside the burner head and preventing the electromagnetic waves from radiating outward. Compared with the traditional shielding sheet that is not connected to the circuit, the present invention has more excellent electromagnetic wave shielding performance.

[0042] The manufacturing process of the burner head of the present invention:

[0043] S1. The upper plate 1 of the burner head and the cathode nozzle 11 are integrally formed by die casting. While maintaining the overall structural stability and conductivity, the cumbersome splicing process is reduced, and the production process of the stainless steel structure of the present invention is greatly simplified;

[0044] S2. The middle plate 2 of the burner head and the ceramic tube 21, and the lower plate 3 of the burner head and the connecting tube 31 are respectively formed by ceramic injection molding in a mold. After the embryo is air-dried and shaped, it is directly fired into shape. The manufacturing method of the integrally formed ceramic structure simplifies the production steps and also reduces the insulation risk and airtightness problems caused by splicing;

[0045] S3. The metal layer 33 is covered on the lower end surface of the lower plate 3 of the burner head by electroplating or spraying process to ensure the integrity of the electromagnetic shielding structure.

[0046] The assembly steps of the burner head of the present invention:

[0047] Step 1. First, pass the ion needle 4 through the ceramic tube 21 of the middle plate 2 of the burner head so that the limiting piece 41 is located on the lower surface of the middle plate 2 of the burner head;

[0048] Step 2: Align the connecting pipe 31 of the lower furnace head plate 3 with the lower end of the ion needle 4, and dock and bring the lower furnace head plate 3 close to the middle furnace head plate 2 so that the limiting piece 41 is located at the gap between the two.

[0049] Step 3: Align the positioning boss 12 with the first positioning groove 22 and the second positioning groove 32 so that the connecting end 111 at the tail of the cathode nozzle 11 is accurately aligned with the docking end 211 at the head of the ceramic tube 21.

[0050] Step 4: Press the folded edge 15 of the upper furnace head plate 1 tightly against the middle furnace head plate 2 and the lower furnace head plate 3, and use screws to fix the positioning boss 12.

[0051] Step 5: After completing the above steps, finally connect the intake fan 5 to the furnace cavity 6.

[0052] From the above installation steps, it can be seen that since the upper furnace head plate 1 integrates the cathode nozzle 11, the middle furnace head plate 2 integrates the ceramic tube 21, and the lower furnace head plate 3 integrates the connecting pipe 31, therefore, the simplified overall structure of the furnace head of the present invention makes the entire assembly process simple, without complex technology and a large amount of manual operation, greatly reducing the assembly cost.

[0053] 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 without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. 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 simplified electric flame stove burner, characterized in that: include: Burner upper plate, burner middle plate, burner lower plate and multiple ion needles; The lower end surface of the furnace head lower plate is provided with a plurality of connecting tubes with internal cavities, the upper end surface of the furnace head middle plate is provided with a plurality of ceramic tubes with internal cavities, and the ion needles correspond to the connecting tubes and the ceramic tubes one by one; An annular limiting plate is arranged in the middle of the ion needle; the upper end of the ion needle extends upward through the inside of the ceramic tube, and the lower end thereof is embedded in the inside of the connecting tube, wherein the limiting plate is installed in the gap between the furnace head middle plate and the furnace head lower plate; The upper plate of the furnace head is provided with a plurality of cathode nozzles corresponding to the ion needles, the connection end of the tail of the cathode nozzle is a funnel expansion, the butt end of the head of the ceramic tube is a conical head, and the outer diameter of the butt end is larger than the outer diameter of the ceramic tube body; The upper plate of the burner head and the cathode nozzle are an integrally formed stainless steel structure, the middle plate of the burner head and the ceramic tube are an integrally formed ceramic structure, and the lower plate of the burner head and the connecting tube are an integrally formed ceramic structure.

2. The simplified electric flame stove burner according to claim 1, characterized in that: It also includes an air intake fan. The furnace head upper plate and the furnace head middle plate enclose a furnace cavity, and the air intake fan is connected to the furnace cavity.

3. The simplified structure of the electric flame stove burner according to claim 2, characterized in that: A plasma channel is formed between the ion needle and the cathode nozzle, and a through hole is arranged around the butt end of the ceramic tube head, and the through hole enables the furnace cavity to communicate with the plasma channel.

4. The simplified structure of the electric flame stove burner according to claim 1, characterized in that: The upper plate of the burner is circular and is provided with a folded edge along its circumference. At least two positioning bosses are processed on the inner side of the folded edge. The middle plate of the burner and the lower plate of the burner are respectively provided with a first positioning groove and a second positioning groove along their circumferences. The positioning bosses correspond one-to-one to the first positioning groove and the second positioning groove.

5. The simplified structure of the electric flame stove burner according to claim 1, characterized in that: The lower end surface of the furnace head lower plate is covered with a metal layer, and the metal layer and the furnace head upper plate and the cathode nozzle are electrically connected to the cathode of the circuit.

6. The simplified structure of the electric flame stove burner according to claim 1, characterized in that: The distance between two adjacent ion needles is greater than a preset distance, so as to prevent the two ion needles from passing through the gap between the furnace head middle plate and the furnace head lower plate to generate an arcing phenomenon.

7. The simplified structure of the electric flame stove burner according to claim 4, characterized in that: The interior of the positioning boss is provided with a thread.

Images