Electric flame stove burner with simplified structure

Abstract

The invention discloses an electric flame stove burner with a simplified structure. The electric flame stove burner comprises a burner upper plate, a burner middle plate, a burner lower plate and a plurality of ion needles. The limiting piece on the ion needle is mounted in the gap between the furnace end middle plate and the furnace end lower plate, so that the mounting efficiency of the ion needle is greatly improved; the connecting end of the tail part of the cathode spray pipe is a funnel flaring, and the butt joint end of the head part of the ceramic pipe is a conical head, so that the butt joint of the cathode spray pipe and the ceramic pipe has accuracy and high efficiency; the cathode spray pipe is integrated on the furnace end upper plate, the ceramic pipe is integrated on the furnace end middle plate, and the connecting pipe is integrated on the furnace end lower plate, so that the whole assembly process is simple, complex technologies and a large amount of manual operation are not needed, and the assembly cost is greatly reduced.

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; 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; Preferably, the present invention further comprises an air intake fan, the upper plate of the burner head and the middle plate of the burner head enclose a furnace cavity, and the air intake fan is in communication with the furnace cavity; Preferably, a plasma channel is formed between the ion needle and the cathode nozzle, and a through hole is provided around the butt end of the ceramic tube head, and the through hole connects the furnace cavity with the plasma channel; Preferably, the upper plate of the burner head is circular, and is provided with a folded edge along its circumference, and at least two positioning bosses are processed on the inner side of the folded edge, and 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 their circumferences, and the positioning bosses correspond to the first positioning groove and the second positioning groove one by one; Preferably, 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; Preferably, 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; Preferably, the distance between two adjacent ion needles is greater than a preset distance 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; Preferably, a thread is provided inside the positioning boss.

[0008] Compared with the prior art, the advantages of the present invention are: The limiting piece on the ion needle of the present invention is installed in the gap between the furnace head middle plate and the furnace head lower plate, which greatly improves the installation efficiency of the ion needle; The connection end of the cathode nozzle tail of the present invention is a funnel expansion, and the butt joint end of the ceramic tube head is a conical head, so that the cathode nozzle and the ceramic tube are butt jointed with accuracy and high efficiency; The present invention integrates cathode nozzles on the upper plate of the burner, ceramic tubes on the middle plate of the burner, and connecting tubes on the lower plate of the burner, making the entire assembly process simple, without complicated technology and a large amount of manual operation, and greatly reducing the assembly cost.

[0009] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0011] Figure 1 It is a structural cross-sectional view of the present invention.

[0012] Figure 2 yes Figure 1 Enlarged view of the area circled in center A.

[0013] Figure 3 It is a structural diagram of the upper plate of the burner of the present invention.

[0014] Figure 4 It is a structural diagram of the furnace head middle plate of the present invention.

[0015] Figure 5 It is a structural diagram of the lower plate of the furnace head of the present invention. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0018] In addition, in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", 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 a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal communication of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In addition, the technical features involved in the different embodiments of the present invention described later can be combined with each other as long as they do not conflict with each other.

[0020] See also Figure 1 to Figure 5 In an embodiment of the present invention, a simplified electric flame stove burner includes: a burner upper plate 1, a burner middle plate 2, a burner lower plate 3 and a plurality of ion needles 4.

[0021] In the embodiment of the present invention, a connecting tube 31 with multiple internal cavities is provided on the lower end surface of the burner lower plate 3, and a ceramic tube 21 with multiple internal cavities is provided on the upper end surface of the burner middle plate 2, and the ion needle 4 corresponds to the connecting tube 31 and the ceramic tube 21 one by one; an annular limiting plate 41 is provided in the middle part of the ion needle 4; the upper end of the ion needle 4 extends upward through the inside of the ceramic tube 21, and the lower end thereof is embedded in the connecting tube 31. During installation, the assembler only needs to embed the lower end of the ion needle 4 into the connecting tube 31 of the burner lower plate 3, and the upper end passes through the ceramic tube 21 of the burner middle plate 2, so that the limiting plate 41 naturally falls in the gap between the burner middle plate 2 and the burner lower plate 3, so that the position of the ion needle 4 can be accurately fixed, and repeated adjustment and positioning operations are avoided, which greatly improves the installation efficiency, and makes the installation process of the ion needle 4 simple and efficient.

[0022] In the embodiment of the present invention, the upper plate 1 of the burner 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 expansion, the butt end 211 at the head of the ceramic tube 21 is a conical head, and the outer diameter of the butt end 211 is larger than the outer diameter of the body of the ceramic tube 21. When the connection end 111 and the butt end 211 are actually assembled, even if there is a slight deviation when the butt end 211 is inserted into the connection end 111, due to the shape characteristics of the cone and trumpet, the butt end 211 can be adjusted and adapted through the gradually changing gap between the two, so that the butt end 211 can smoothly enter the connection end 111, and the butt end 211 will not fail to dock due to a slight position deviation.

[0023] 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 to finely adjust the position. They only need to bring the docking end 211 close to the connecting 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.

[0024] In the embodiment of the present invention, the upper plate 1 of the burner and the cathode nozzle 11 are an integrally formed stainless steel structure, the middle plate 2 of the burner and the ceramic tube 21 are an integrally formed ceramic structure, and the lower plate 3 of the burner and the connecting pipe 31 are an integrally formed ceramic structure. The integrated forming process of the burner structure of the present invention greatly simplifies the overall structure of the burner while ensuring the structural strength. Compared with the traditional multi-component splicing design, a large number of connecting components and splicing processes are reduced, and the complexity of the production process is greatly reduced. In the production link, the upper plate 1, the middle plate 2, and the lower plate 3 of the burner can be manufactured by a mold, which effectively shortens the production cycle and reduces the production cost; in the installation stage, the installation steps are reduced, and the requirements for the technical level of the installation workers are reduced, making the burner installation more convenient, and further improving the overall production and installation efficiency. At the same time, the integrated structure of the lower plate 3 of the burner integrated with the connecting pipe 31 significantly enhances the insulation performance, and constructs an effective insulation barrier between the ion needle 4 and the metal layer 33 on the lower end surface of the lower plate 3 of the burner, preventing the arcing phenomenon between the ion needle 4 and the metal layer 33, which greatly improves the safety performance of the burner.

[0025] In the next embodiment of the present invention, the present invention further comprises an air intake fan 5, the upper plate 1 of the burner and the middle plate 2 of the burner are enclosed to form a furnace cavity 6, and the air intake fan 5 is connected to the furnace cavity 6; a plasma channel 7 is formed between the ion needle 4 and the cathode nozzle 11, and a through hole 212 is arranged along the circumference of the butt end 211 of the head of the ceramic tube 21, and the through hole 212 connects the furnace cavity 6 with the plasma channel 7. When the electric flame stove burner starts to work, the air intake fan 5 starts to send air into the furnace cavity 6; the gas in the furnace cavity 6 enters the plasma channel 7 through the through hole 212 along the circumference of the butt end 211 of the head of the ceramic tube 21, and because the through hole 212 is in relative flow with the outlet of the cathode nozzle 11, the air flow of 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.

[0026] In the next embodiment of the present invention, the burner upper plate 1 is circular, and is provided with a folded edge 15 along the circumference, and at least two positioning bosses 12 are processed inside the folded edge 15, and the burner middle plate 2 and the burner lower plate 3 are respectively provided with a first positioning groove 22 and a second positioning groove 32 along the circumference, and the positioning boss 12 corresponds to the first positioning groove 22 and the second positioning groove 32 one by one, and a thread is provided inside the positioning boss 12. The burner structure of the present invention ensures accurate installation and stable connection of various components by accurately positioning the positioning boss 12 with the first positioning groove 22 and the second positioning groove 32.

[0027] In the next embodiment of the present invention, the distance between two adjacent ion needles 4 is greater than the preset distance, so as to prevent the two ion needles 4 from passing through the gap between the furnace head middle plate 2 and the furnace head lower plate 3 to generate arcing. The distance between the ion needles 4 is reasonably set to avoid the occurrence of arcing.

[0028] In the next embodiment of the present invention, the lower end surface of the burner lower plate 3 is covered with a metal layer 33, and the metal layer 33, the burner upper plate 1 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. The reverse electromagnetic field generated by the induced current offsets the original electromagnetic field generated by the operation of the burner, effectively shielding the electromagnetic waves generated during the operation of the burner inside the burner, and preventing the electromagnetic waves from radiating outward. Compared with the traditional shielding sheet of non-connected circuits, the present invention has a better performance in shielding electromagnetic waves.

[0029] The manufacturing process of the burner head of the present invention: S1, the burner upper plate 1 and the cathode nozzle 11 are manufactured by integrally forming and casting with a mold, which not only maintains the overall structural stability and conductivity, but also reduces the cumbersome splicing process, greatly simplifying the production process of the stainless steel structure of the present invention; S2, the furnace head middle plate 2 and the ceramic tube 21, the furnace head lower plate 3 and the connecting tube 31 are respectively formed by ceramic grouting in the mold, and the embryos are directly fired after being air-dried and shaped. The one-piece ceramic structure manufacturing method simplifies the production steps and reduces the insulation risk and airtightness problems caused by splicing; S3. Cover the lower end surface of the furnace head lower plate 3 with a metal layer 33 by electroplating or spraying to ensure the integrity of the electromagnetic shielding structure.

[0030] The steps of assembling the stove head of the present invention are as follows: Step 1: First, the ion needle 4 is passed through the ceramic tube 21 of the furnace head middle plate 2, so that the limiting plate 41 is located on the lower surface of the furnace head middle plate 2; Step 2: Align the connecting tube 31 of the furnace head lower plate 3 with the lower end of the ion needle 4, and make the furnace head lower plate 3 and the furnace head middle plate 2 close to each other so that the limiting piece 41 is located in the gap between them; 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 butt end 211 at the head of the ceramic tube 21; Step 4: The folded edge 15 of the upper plate 1 of the burner is tightly attached to the middle plate 2 and the lower plate 3 of the burner, and the positioning boss 12 is fixed with screws; Step 5: After completing the above steps, finally connect the air intake fan 5 to the furnace cavity 6.

[0031] From the above installation steps, it can be seen that since the cathode nozzle 11 is integrated in the upper plate 1 of the burner, the ceramic tube 21 is integrated in the middle plate 2 of the burner, and the connecting tube 31 is integrated in the lower plate 3 of the burner, the simplified overall structure of the burner of the present invention simplifies the entire assembly process, does not require complicated technology and a large amount of manual operation, and greatly reduces the assembly cost.

[0032] 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 exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included 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 ceramic tube head is a conical head, and the outer diameter of the butt end is larger than the outer diameter of the ceramic tube body.

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 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.

6. 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.

7. 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.

8. 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