Burner head structure and electric burner

Abstract

The application provides a burner structure and an electric gas stove, which comprises a plurality of first electrodes, a plurality of second electrodes and an electrode plate; the first electrode is a hollow structure with openings at both ends which are communicated with each other, and the second electrode is provided with a first connecting groove at the bottom for connecting an electrode needle; the electrode plate is provided with a plurality of electrode grooves, the bottom of any electrode groove is insulated and provided with a first needle hole penetrating through the electrode plate and at least one flow guide hole penetrating through the electrode plate; the first electrode is correspondingly arranged in the electrode groove, the second electrode is arranged in the first electrode and does not contact the first electrode, the first connecting groove corresponds to the first needle hole, a flow channel is formed between the first electrode and the second electrode, and the flow guide holes are all located at the bottom of the flow channel. According to the above-mentioned burner structure, high-temperature plasma can be blown outwards to the upper pot through the flow channel, so that a non-conductive pot can be used, and the thermal efficiency is relatively high.

Description

Technical Field

[0001] This invention relates to the field of electric stove technology, and more particularly to a burner structure and an electric stove. Background Technology

[0002] An electric gas stove is a new type of stove that uses electricity to start a fire without fuel. It uses clean electricity as its energy source and low-temperature thermal plasma technology as its foundation, employing a plasma torch with stable power output from multiple points to achieve its cooking function. Currently, mainstream electric gas stoves require a conductive pot (such as an iron pot) to connect to a probe (an electrode of the electric gas stove) to generate high-temperature plasma. As soon as the pot is removed, it separates from the probe, and the electric gas stove automatically "extinguishes" the flame. This type of electric gas stove cannot use non-conductive clay pots, ceramic pots, etc.

[0003] Patent CN116182208A discloses a high-temperature plasma electric stove structure and a stove. The high-temperature plasma electric stove structure includes: a transformer, a first electrode, a second electrode, a first high-voltage ceramic capacitor, and a second high-voltage ceramic capacitor. The transformer has a first output terminal and a second output terminal. The transformer is used to connect to an external power source, and its first output terminal is connected to the first high-voltage ceramic capacitor, and its second output terminal is connected to the second high-voltage ceramic capacitor. The first high-voltage ceramic capacitor is connected to the first electrode, and the second high-voltage ceramic capacitor is connected to the second electrode. The first electrode and the second electrode are arranged at intervals, and the distance between them is such that when the transformer is connected to an external power source, an electric arc is formed between the first electrode and the second electrode, ionizing the air and generating high-temperature plasma. The high-temperature plasma electric stove structure proposed in this invention is suitable not only for iron pots and other cookware, but also for earthenware pots, ceramic pots, and other cookware.

[0004] However, in the electric gas stove mentioned in the above patent, since the high-temperature plasma is generated between the first and second electrodes, most of the high-temperature plasma does not directly hit the cookware, resulting in low thermal efficiency. Summary of the Invention

[0005] In view of this, the present invention provides a burner structure and an electric stove to solve the problem that the high-temperature plasma generated by the electric stove in the prior art does not directly hit the cookware, resulting in low thermal efficiency.

[0006] To achieve one or more of the above objectives or other objectives, the present invention provides a furnace head structure, comprising: a plurality of first electrodes, a plurality of second electrodes, and an electrode plate;

[0007] The first electrode is a hollow structure with openings at both ends that are interconnected, and the bottom of the second electrode is provided with a first connecting groove for connecting an electrode needle.

[0008] The electrode plate is provided with multiple electrode slots, and the bottom of each electrode slot is insulated and provided with a first pin hole penetrating the electrode slot and at least one guide hole penetrating the electrode slot.

[0009] The first electrode is disposed in the electrode groove, the second electrode is disposed inside the first electrode and does not contact the first electrode, the first connecting groove corresponds to the first pinhole, a flow channel is formed between the first electrode and the second electrode, and the flow guide holes are all located at the bottom of the flow channel.

[0010] Furthermore, the at least one guide hole penetrating the electrode groove is a plurality of guide holes distributed around the first pinhole.

[0011] Furthermore, the electrode plate also includes: a plurality of ceramic tubes, the electrode plate is provided with a plurality of electrode mounting holes, a limiting ring is provided at the bottom of any electrode mounting hole, the electrode groove is formed by the ceramic tubes being installed in the electrode mounting holes and engaging with the limiting rings, and the first pinhole and the guide hole are located on the ceramic tubes.

[0012] Furthermore, the plurality of guide holes are located on a circumference centered on the first pinhole and are evenly distributed, and the plurality of guide holes are inclined along the clockwise direction of the circumference or along the counterclockwise direction of the circumference.

[0013] Furthermore, the first electrode includes a connecting ring and a hollow first furnace head, the cross-sectional size of the first furnace head decreasing sequentially from the top to the bottom, and the connecting ring connecting to the lower end of the first furnace head;

[0014] The second electrode includes a connecting post and a second furnace head. The cross-sectional size of the second furnace head decreases from the top to the bottom. The connecting post connects to the lower end of the second furnace head, and the first connecting groove is disposed at the bottom of the connecting post.

[0015] Furthermore, the burner head structure also includes: a baffle plate; wherein,

[0016] The guide plate has an air supply area that communicates with the outside and multiple second pin holes that penetrate the guide plate. Each of the second pin holes has a guide groove that surrounds the outer periphery of the second pin hole and communicates with the air supply area. The electrode plate is connected to the top of the guide plate and covers the guide groove, so that a guide channel is formed inside the guide groove. The guide channel communicates with the guide hole, and the first pin hole and the second pin hole communicate with each other.

[0017] Furthermore, the air supply area is located in the middle of the guide plate, and the electrode plate has a through hole in the middle, which connects to the air supply area.

[0018] Furthermore, the air supply area is provided with a fan and a connecting hole that penetrates the guide plate, and the fan is connected to a motor through the connecting hole.

[0019] Furthermore, the burner head structure also includes an electrode needle, which passes through the second needle hole and the first needle hole in sequence and is connected to the first connecting groove. The bottom of the electrode needle is provided with a second connecting groove for connecting a circuit board.

[0020] To achieve one or more of the above objectives or other objectives, the present invention also provides an electric gas stove, which includes the burner structure described in any of the above claims.

[0021] Implementing the embodiments of the present invention will have the following beneficial effects:

[0022] With the aforementioned burner head structure, the first electrode is a hollow structure with interconnected openings at both ends. The second electrode is disposed inside the first electrode without contact, forming a flow channel between the first and second electrodes. During operation, high-temperature plasma is generated between the first and second electrodes and can be blown outward through the flow channel, allowing this high-temperature plasma to strike the cookware above. Therefore, the burner head structure proposed in this invention, when applied to an electric gas stove, not only prevents the stove from extinguishing when the pot is lifted, but also achieves considerably high thermal efficiency because the high-temperature plasma strikes the cookware directly. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] in:

[0025] Figure 1 This is an exploded view of the furnace head structure in one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the first electrode and the second electrode in one embodiment of the present invention;

[0027] Figure 3 This is an exploded view of the structure of the first electrode and the second electrode in one embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the electrode plate structure in one embodiment of the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of point A;

[0030] Figure 6 This is a schematic diagram of the structure of the guide plate in one embodiment of the present invention;

[0031] Figure 7 This is an exploded view of the furnace head structure in another embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the burner head structure in one embodiment of the present invention;

[0033] Figure 9 This is an exploded view of the furnace head structure in another embodiment of the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of an electric gas stove in one embodiment of the present invention;

[0035] Figure 11 This is a schematic diagram of a ceramic tube mounted on an electrode plate in one embodiment of the present invention;

[0036] Figure 12 This is an exploded view of the structure of the ceramic tube and electrode plate in one embodiment of the present invention.

[0037] Reference numerals in the attached drawings: 1. First electrode; 11. Connecting ring; 12. First furnace head; 2. Second electrode; 21. Connecting column; 211. First connecting groove; 22. Second furnace head; 3. Electrode plate; 31. Electrode groove; 311. First pinhole; 312. Guide hole; 32. Through hole; 33. Ceramic tube; 34. Electrode mounting hole; 341. Limiting ring; 4. Guide plate; 41. Air supply zone; 42. Second pinhole; 43. Guide groove; 44. Connecting hole; 5. Fan; 6. Electrode pin; 61. Second connecting groove; 7. Furnace head plate. Detailed Implementation

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects and not to describe a particular order.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0041] Reference Figures 1 to 5This invention proposes a furnace head structure, comprising: multiple hollow first electrodes 1 with interconnected openings at both ends, a number of second electrodes 2 equal to the number of first electrodes 1, and an electrode plate 3. The bottom of each second electrode 2 is provided with a first connecting groove 221 for connecting electrode needles 6. The electrode plate 3 can be a high-temperature resistant insulating plate such as a ceramic plate or mica plate. The electrode plate 3 is provided with multiple bottom-insulated electrode grooves 31 (the same number as the first electrodes 1). Since the first electrodes 1 and second electrodes 2 are different poles connected to the power supply and need to be insulated from each other, the bottom of the electrode grooves 31 can be made of mica or ceramic sheets. In this case, the bottom of each electrode groove 31 is provided with a first needle hole 311 penetrating the electrode groove 31 and at least one guide hole 312 penetrating the electrode groove 31. During assembly, the first electrode 1 is snapped or welded onto the electrode groove 31, sealing the connection between the first electrode 1 and the electrode groove 31. The second electrode 2 is disposed inside the first electrode 1 and does not contact it. The first connecting groove 221 corresponds to the first pin hole 311, forming a flow channel between the first electrode 1 and the second electrode 2. The guide holes 312 are all located at the bottom of the flow channel. The specific fixing method of the second electrode 2 is not limited here. For example, the electrode needle 6 can be directly passed through the first pin hole 311 and connected to the first connecting groove 221 to fix the second electrode 2. Alternatively, a groove that can snap onto the second electrode 2 can be set at the bottom of the electrode groove 31. Or, the second electrode 2 can be directly welded to the corresponding position on the electrode groove 31 before assembling the first electrode 1, etc. In use, the first electrode 1 is connected to one pole of the power supply, for example, the burner head plate 7 made of stainless steel is directly connected to one pole of the power supply. The second electrode 2 is connected to the other pole of the power supply through the electrode needle 6. After ignition, high-temperature plasma is generated between the first electrode 1 and the second electrode 2. At this time, the high-temperature plasma in the flow channel can be blown out by a blower so that the high-temperature plasma hits the pot above. Therefore, when the burner structure proposed in this invention is applied to an electric stove, since the pot is not connected to the power supply and does not serve as one of the electrodes for generating high-temperature plasma, not only will picking up the pot not cause the electric stove to "extinguish", but also, since the high-temperature plasma hits the pot directly, the effect looks like an open flame, and it has a very high thermal efficiency.

[0042] In some embodiments, at least one guide hole 312 penetrating the electrode groove 31 can be configured as a plurality of guide holes 312 distributed around the first pinhole 311. This configuration allows for a more uniform flow velocity within the flow channel, resulting in better performance. Specifically, the plurality of guide holes 312 are located on a circumference centered on the first pinhole 311 and are evenly distributed. The plurality of guide holes 312 are all inclined along the clockwise direction or all along the counterclockwise direction of the circumference, for example, 3-8 guide holes 312 are evenly arranged. (Refer to...) Figure 4 and Figure 5 , Figure 4 and Figure 5 A pattern of uniformly arranged four guide holes 312 is given. The angle between the axis of any guide hole 312 and the vertical direction is the same, ranging from 30 degrees to 60 degrees. For example, the angle between the axis of the guide hole 312 and the vertical direction is 45 degrees. More specifically, the electrode plate 3 may also include multiple ceramic tubes 33 (alumina ceramic tubes can be used as a preferred option), and multiple electrode mounting holes 34 are provided on the electrode plate 3. A limiting ring 341 is provided at the bottom of each electrode mounting hole 34. The electrode groove 31 is formed by installing the ceramic tube 33 into the electrode mounting hole 34 and engaging it with the limiting ring 341. The first pinhole 311 and the guide hole 312 are located on the ceramic tube 33, as shown in the figure. Figure 11 and Figure 12 As shown, the above-described embodiment of the mica sheet or ceramic sheet can also be installed in a similar manner to this embodiment, that is, replacing the ceramic tube 33 with the mica sheet or ceramic sheet, and the first pinhole 311 and the guide hole 312 are also disposed on the mica sheet or ceramic sheet. Since the high-temperature plasma is formed by generating an arc at a certain point between the first electrode 1 and the second electrode 2, the temperature at the corresponding point of the first electrode 1 and the corresponding point of the second electrode 2 will be very high. Over time, this point is prone to burn-through. With the above structure, since the inlet of the airflow channel is inclined, the air blown into the channel can cause the air in the channel to rotate. After the air rotates, the position of generating the arc can rotate, that is, the position of generating the high-temperature plasma changes. This avoids the position of generating the arc being fixed, and can extend the service life of the first electrode 1 and the second electrode 2.

[0043] In some embodiments, the first electrode 1 can be a circular tube, and the second electrode 2 can be a cylinder. In other embodiments, the first electrode 1 includes a connecting ring 11 and a hollow first burner head 12, the cross-sectional area of ​​which decreases from top to bottom, and the connecting ring 11 connects to the lower end of the first burner head 12; the second electrode 2 includes a connecting post 21 and a second burner head 22, the cross-sectional area of ​​which decreases from top to bottom, and the connecting post 21 connects to the lower end of the second burner head 22, with a first connecting groove 221 disposed at the bottom of the connecting post 21. In this case, the first electrode 1 is shaped like a cup, while the second electrode 2 is shaped like a stemmed glass. This structural arrangement allows for a larger flame outlet, i.e., a larger area of ​​high-temperature plasma ejected, resulting in more uniform heating of the cookware.

[0044] Reference Figure 6 and Figure 7In some embodiments, the furnace head structure further includes a baffle plate 4; wherein the baffle plate 4 is provided with an air supply area 41 communicating with the outside and a plurality of second pinholes 42 penetrating the baffle plate 4, each of the second pinholes 42 having a guide groove 43 surrounding the outer periphery of the second pinhole 42 and communicating with the air supply area 41, the electrode plate 3 is connected to the top of the baffle plate 4 and covers the guide groove 43, so that a guide channel is formed inside the guide groove 43, the guide channel communicating with the guide hole 312, and the first pinhole 311 and the second pinhole 42 communicating. In this embodiment, the air supply area 41 can be an air inlet structure provided at the bottom, top or side of the baffle plate 4, and the guide channel communicating with this air inlet structure. By supplying air to this air inlet structure, the air can be blown through the guide channel to each guide hole 312, and then enter the flow channel from the guide hole 312 to blow out the high-temperature plasma.

[0045] Alternatively, for example, the air supply zone 41 can be located in the middle of the guide plate 4, and the electrode plate 3 has a through hole 32 in the middle, which connects to the air supply zone 41. In this case, the air supply zone 41 is located at the top of the middle of the guide plate 4, and the guide plate 4 is isolated from the area below, thereby preventing excessive heat from being conducted into the electric gas stove.

[0046] More specifically, the air supply zone 41 is equipped with a fan 5 and a connecting hole 44 that passes through the guide plate 4. The fan 5 is connected to a motor through the connecting hole. The air supply zone 41 is supplied with air by the fan 5, and the way the connecting hole 44 is positioned allows the motor to be placed away from the high-temperature area.

[0047] In addition, the burner head structure also includes an electrode needle 6. The electrode needle 6 passes through the second needle hole 42 and the first needle hole 311 in sequence and connects to the first connecting groove 221. The bottom of the electrode needle 6 is provided with a second connecting groove 61 for connecting a circuit board. The second connecting groove 61 on the electrode needle 6 can be detachably connected to the circuit board, such as... Figure 9 As shown, this facilitates repair and replacement when the electrode or electrode needle 6 is damaged, achieving a quick disassembly effect.

[0048] Reference Figure 10 The present invention also proposes an electric gas stove, which includes the aforementioned burner head structure. This electric gas stove can be equipped with a burner head plate 7, such as... Figure 8 As shown, the burner head plate 7 is positioned above the electrode plate 3 to protect the burner head structure below the burner head plate 7 and has functions such as dust prevention.

[0049] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A stove head structure, characterized in that, include: Multiple first electrodes, multiple second electrodes, and electrode plates; The first electrode is a hollow structure with openings at both ends that are interconnected, and the bottom of the second electrode is provided with a first connecting groove for connecting an electrode needle. The electrode plate is provided with multiple electrode slots, and the bottom of each electrode slot is insulated and provided with a first pin hole penetrating the electrode slot and at least one guide hole penetrating the electrode slot. The first electrode is disposed in the electrode groove, the second electrode is disposed inside the first electrode and does not contact the first electrode, the first connecting groove corresponds to the first pinhole, a flow channel is formed between the first electrode and the second electrode, and the flow guide holes are all located at the bottom of the flow channel; The burner head structure also includes: a baffle plate; wherein... The guide plate is provided with an air supply area that communicates with the outside and multiple second pin holes that penetrate the guide plate. Each of the second pin holes has a guide groove that surrounds the outer periphery of the second pin hole and communicates with the air supply area. The electrode plate is connected to the top of the guide plate and covers the guide groove, so that a guide channel is formed inside the guide groove. The guide channel communicates with the guide hole, and the first pin hole and the second pin hole communicate with each other. The air supply area is an air inlet structure located at the bottom, top, or side of the guide plate, and the guide channel connects to the air inlet structure. The at least one guide hole penetrating the electrode groove is a plurality of guide holes distributed around the first pin hole; the plurality of guide holes are located on a circumference with the first pin hole as the center and are evenly distributed, and the plurality of guide holes are inclined along the clockwise direction of the circumference or along the counterclockwise direction of the circumference.

2. The burner head structure according to claim 1, characterized in that, The electrode plate further includes: multiple ceramic tubes, the electrode plate is provided with multiple electrode mounting holes, a limiting ring is provided at the bottom of any electrode mounting hole, the electrode groove is formed by the ceramic tubes being installed in the electrode mounting holes and engaging with the limiting rings, and the first pinhole and the guide hole are located on the ceramic tubes.

3. The burner head structure according to claim 1, characterized in that, The first electrode includes a connecting ring and a hollow first furnace head. The cross-sectional size of the first furnace head decreases from the top to the bottom. The connecting ring is connected to the lower end of the first furnace head. The second electrode includes a connecting post and a second furnace head. The cross-sectional size of the second furnace head decreases from the top to the bottom. The connecting post connects to the lower end of the second furnace head, and the first connecting groove is disposed at the bottom of the connecting post.

4. The burner head structure according to claim 1, characterized in that, The air supply zone is located in the middle of the guide plate, and the electrode plate has a through hole in the middle, which connects to the air supply zone.

5. The burner head structure according to claim 4, characterized in that, The air supply area is provided with a fan and a connecting hole that passes through the guide plate. The fan is connected to a motor through the connecting hole.

6. The burner head structure according to any one of claims 1, 4, or 5, characterized in that, The furnace head structure also includes an electrode needle, which passes through the second needle hole and the first needle hole in sequence and is connected to the first connecting groove. The bottom of the electrode needle is provided with a second connecting groove for connecting a circuit board.

7. An electric gas stove, characterized in that, The electric stove includes the burner structure as described in any one of claims 1 to 6.

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