Waterproof plasma generation assembly and burner tip

Abstract

The embodiment of the application discloses a waterproof plasma generating assembly and a burner head, wherein the waterproof plasma generating assembly comprises a cyclone tube, a plasma needle and a nozzle; the cyclone tube is provided with a longitudinal accommodating hole, the plasma needle passes through the accommodating hole, the cyclone tube comprises a cyclone tube main body and a boss, the boss is arranged on the upper end of the cyclone tube main body, the top end of the plasma needle passes through the cyclone tube main body and then passes out from the top end of the boss; the nozzle is a hollow structure, the bottom end of the nozzle is fixedly connected with the cyclone tube main body, and the boss is located inside the nozzle; the plasma needle is used for electrically connecting with one pole of a power supply, and the nozzle is used for electrically connecting with another pole of the power supply; a plurality of through holes are further arranged on the cyclone tube main body, the through holes comprise first openings arranged on the upper surface of the cyclone tube main body, and the first openings are located in the nozzle.

Description

Technical Field

[0001] This invention relates to the field of electric gas stove technology, and in particular to a waterproof plasma generating component and burner head. Background Technology

[0002] An electric gas stove is a type of stove that uses high-voltage ionization of air to generate high-temperature plasma similar to a flame to heat cookware. During cooking, soup and water from the cookware can easily spill onto the burner head. When cleaning the countertop, cleaning fluid can also easily enter the burner head. Liquid entering the burner head may affect its operation, and liquid accumulation may cause a short circuit, affecting the lifespan of the electric gas stove.

[0003] In addition, plasma is generated between the electrode head and the nozzle, which are electrically connected to the positive and negative terminals of the power supply, respectively. When plasma is generated only at a certain point on the electrode head and the nozzle, it will cause the voltage at that point to be too high, which will easily damage the electrode head or nozzle and affect the service life of the furnace head. Summary of the Invention

[0004] In view of this, the present invention provides a waterproof plasma generating component and a burner head to solve the problems of poor waterproof performance of the burner head and easy high-voltage breakdown of the electrode head or nozzle in the prior art of electric gas stoves.

[0005] To achieve one or more of the above objectives or other objectives, this application provides a waterproof plasma generating assembly, including a cyclone tube, a plasma needle, and a nozzle;

[0006] The cyclone tube is provided with a longitudinal receiving hole, through which the plasma needle passes. The cyclone tube includes a cyclone tube body and a boss. The boss is located at the upper end of the cyclone tube body. The tip of the plasma needle passes through the cyclone tube body and then protrudes from the top of the boss.

[0007] The nozzle has a hollow structure, and the bottom end of the nozzle is fixedly connected to the cyclone tube body. The boss is located inside the nozzle.

[0008] The plasma needle is used to be electrically connected to one pole of the power supply, and the nozzle is used to be electrically connected to the other pole of the power supply.

[0009] The cyclone tube body is also provided with a plurality of through holes, the through holes including a first opening provided on the upper surface of the cyclone tube body, the first opening being located inside the nozzle.

[0010] Furthermore, the cyclone tube body includes a connecting column, which is located at the lower end of the boss, and the cross-sectional area of ​​the connecting column is larger than the cross-sectional area of ​​the boss; the connecting column is threadedly connected to the lower end of the nozzle.

[0011] Furthermore, a plurality of through holes are circumferentially arranged on the cyclone tube body, and the cross-section of each through hole is circular. Each through hole also includes a second opening disposed on the lower surface of the cyclone tube body, and the area of ​​the first opening is smaller than the area of ​​the second opening.

[0012] Furthermore, the through hole is generally shaped like an oblique column, and the projection of the first opening onto the lower surface of the cyclone tube body does not coincide with the second opening at all.

[0013] Furthermore, the plasma needle includes an electrode needle and an electrode head. One end of the electrode needle that protrudes from the receiving hole is threaded, and the electrode head is connected to the electrode needle via the thread.

[0014] Furthermore, the electrode head is entirely conical, and the electrode head is located completely inside the nozzle.

[0015] Furthermore, the cyclone tube body also includes a fixing column, which is located at the lower end of the connecting column, and the cross-sectional area of ​​the fixing column is larger than that of the connecting column.

[0016] Furthermore, the cross-sectional area of ​​the nozzle at the end furthest from the cyclone tube is smaller than the cross-sectional area at the other end.

[0017] Furthermore, the nozzle has an external thread at its bottom end, which is used to connect with the base plate.

[0018] To achieve one or more of the above objectives or other objectives, this application also proposes a furnace head comprising a plurality of waterproof plasma generating components as described in any of the above claims and a base plate, wherein the plurality of waterproof plasma generating components are fixedly mounted on the base plate.

[0019] Implementing the embodiments of the present invention will have the following beneficial effects:

[0020] After adopting the above-mentioned waterproof plasma generating component, when the furnace head is working, plasma is generated between the nozzle and the electrode head. The air can be blown upward from the through hole. The rotating air drives the plasma to rotate inside the nozzle and then eject it. This can not only prevent the location where plasma is generated first on the nozzle or electrode head from being broken down due to high voltage, but also increase the plasma flow rate, resulting in higher heating efficiency and more uniform heating.

[0021] In addition, even if liquid enters the nozzle after the burner stops working, the liquid will not come into contact with the electrode head because of the protrusion under the electrode head. It will quickly flow out from the through hole, which plays a certain role in waterproofing and reduces safety hazards. Attached Figure Description

[0022] 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.

[0023] in:

[0024] Figure 1 This is a schematic diagram of the exploded structure of an embodiment of the waterproof plasma generating assembly proposed in this application;

[0025] Figure 2 This is a front view of one embodiment of the waterproof plasma generating assembly proposed in this application;

[0026] Figure 3 for Figure 2 A cross-sectional view of the AA plane;

[0027] Figure 4 This is a front view of the cyclone tube of one embodiment of the waterproof plasma generating assembly proposed in this application;

[0028] Figure 5 for Figure 4 A cross-sectional view of the BB plane.

[0029] Figure label:

[0030] 1. Cyclone tube; 11. Cyclone tube body; 111. Connecting post; 112. Fixing post; 12. Boss; 13. Through hole; 131. First opening; 132. Second opening; 14. Receiving hole;

[0031] 2. Plasma needle; 21. Electrode needle; 22. Electrode tip;

[0032] 3. Nozzle. Detailed Implementation

[0033] 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 application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0034] 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 this application. 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.

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0036] Reference Figures 1 to 5 This application proposes a waterproof plasma generating assembly, including a cyclone tube 1, a plasma needle 2, and a nozzle 3;

[0037] The cyclone tube 1 is provided with a longitudinal receiving hole 14, through which the plasma needle 2 passes. The cyclone tube 1 includes a cyclone tube body 11 and a boss 12. The boss 12 is located at the upper end of the cyclone tube body 11. The top end of the plasma needle 2 passes through the cyclone tube body 11 and then protrudes from the top end of the boss 12.

[0038] The nozzle 3 has a hollow structure. The bottom end of the nozzle 3 is fixedly connected to the cyclone tube body 11, and the boss 12 is located inside the nozzle 3.

[0039] The plasma needle 2 is used for electrical connection to one pole of the power supply, and the nozzle 3 is used for electrical connection to the other pole. During use, since plasma is generated near the cyclone tube 1, the high temperature may affect the cyclone tube 1. Therefore, the cyclone tube 1 is made of a high-temperature resistant material. Furthermore, since the plasma needle 2 and nozzle 3 are assembled together through the cyclone tube 1, to prevent electrical conduction between the plasma needle 2 and nozzle 3 through the cyclone tube 1, the cyclone tube 1 is made of an insulating material. Therefore, the cyclone tube 1 can be made of a high-temperature resistant insulating material, such as ceramic or mica. A high voltage exists between the plasma needle 2 and the nozzle 3, ionizing the air within and generating high-temperature plasma within the cavity of the nozzle 3. The cyclone tube body 11 has multiple through holes 13. The cyclone tube body 11 includes a connecting post 111 and a fixing post 112. The connecting post 111 is located at the lower end of the boss 12, and its cross-sectional area is larger than that of the boss 12. The fixing post 112 is located at the lower end of the connecting post 111, and its cross-sectional area is larger than that of the connecting post 111. The through holes 13 include a first opening 131 on the upper surface of the connecting post 111 and a second opening 132 on the lower surface of the fixing post 112, with the first opening 131 located inside the nozzle 3. In different embodiments, the cross-sectional areas of the connecting post 111 and the fixing post 112 may also be equal.

[0040] Below the cyclone tube 1, a fan or other air supply structure can be installed. When the electric stove is working, the fan blows air from bottom to top, and the air blows upward through the through hole 13. The through hole 13 forms an air duct. Since the through hole 13 is shaped like an inclined column, the air blown through the air duct will be blown upward at an angle. Multiple inclined air streams converge in the nozzle 3 to form a vortex airflow, which drives the plasma to rotate. This prevents the plasma from being generated in only one position, which would cause the voltage at a certain point on the nozzle 3 or plasma needle 2 to be too high, resulting in the nozzle 3 or plasma needle 2 being broken down and affecting the service life of the burner.

[0041] When the electric gas stove is working, the cookware is placed on the burner head, which is equipped with multiple waterproof plasma generating components. The bottom of the cookware is in contact with or close to the top of the nozzle 3. During cooking, liquid may splash out of the cookware. When cleaning the countertop, water or cleaning solution can easily enter the burner head. When liquid enters the plasma generating component from the nozzle 3, the connecting post 111 has external threads on its side wall, and the nozzle 3 has internal threads at its lower end. After the nozzle 3 is fixedly connected to the connecting post 111, the liquid cannot flow down through the gap between the nozzle 3 and the connecting post 111. Since the electrode head 22 is located on the upper end of the boss 12, and the boss 12 has a certain height, even if a large amount of liquid accumulates, the liquid can only partially submerge the boss 12. Furthermore, the through hole 13 extends from the bottom surface of the fixed post 112 to the top surface of the connecting post 111. The accumulated liquid will gradually flow down from the through hole 13 without contacting the electrode head 22. In different embodiments, the nozzle 3 and the connecting post 111 can also be matched and plugged in by means of snap-fit, which can also prevent the liquid from flowing into the gap between the nozzle 3 and the connecting post 111, but instead flow out from the first opening 131.

[0042] Furthermore, multiple through holes 13 are circumferentially arranged on the cyclone tube body 11. The longitudinal section of the cyclone tube body 11 is convex, allowing space for variations in the cross-sectional area of ​​the through holes 13. The cross-sections of the through holes 13 are all circular, and the cross-sectional area of ​​the through holes 13 gradually increases from one end to the other. The area of ​​the first opening 131 is smaller than the area of ​​the second opening 132. In different embodiments, the cross-section of the through holes 13, as well as the first opening 131 and the second opening 132, can be set to different shapes, such as elliptical or teardrop-shaped. The larger the cross-sectional area, the greater the fluid flow rate, and correspondingly, the lower the fluid velocity. In this embodiment, the cross-sectional area at the upper end of the through hole 13 is smaller. When the electric gas stove is working, the fan sends a large amount of air into the second opening 132. When the air enters the nozzle 3 from the first opening 131, the wind speed is greater, which can drive the plasma to rotate at a higher speed, resulting in more uniform heating. This avoids the situation where one part of the nozzle 3 and the plasma needle 2 heats up quickly while another part heats up slowly, affecting the cooking effect.

[0043] Correspondingly, when the fire is stopped, the liquid accumulated in the nozzle 3 will quickly flow out from the through hole 13. Since the area difference between the cross-sections of the connecting column 111 and the boss 12 is small, and the area occupied by the through hole 13 is large, the liquid is difficult to accumulate and will quickly flow out from the through hole 13, without causing a short circuit and affecting the operation of the burner.

[0044] Furthermore, the projection of the first opening 131 onto the lower surface of the fixed column 112 does not coincide with the second opening 132 at all. The inclination angle of the through hole 13 determines the flow direction of the fluid within the through hole 13. The larger the inclination angle, the more the fluid flow angle deviates from the vertical direction. When the electric gas stove is working, after the air flows into the through hole 13 from the second opening 132, it is guided by the through hole 13 and forms an upward-sloping wind. After multiple winds converge in the nozzle 3, they form a spiral wind. The larger the inclination angle, the lower the cyclone generation position. When the plasma is generated near the lower end of the nozzle 3, the cyclone can also drive the plasma to rotate and be ejected upward. However, the larger the inclination angle, the longer the generatrix of the through hole 13, and the longer the fluid flow path, which has a certain impact on the rapid discharge of the liquid. Therefore, the angle between the through hole 13 and the horizontal plane is preferably between 30-75°, and can be set to 45°, 60°, or 70°, etc.

[0045] In this embodiment, the nozzle 3 is composed of a hollow frustum at the upper end and a hollow cylinder at the lower end. The cross-sectional area of ​​the end of the nozzle 3 away from the cyclone tube 1 is smaller than the cross-sectional area of ​​the other end, that is, the longitudinal cross-section of the upper end of the nozzle 3 is trapezoidal. After the plasma is formed in the nozzle 3, it is ejected upward along with the swirling airflow. The smaller cross-sectional area of ​​the nozzle 3 allows the plasma to flow faster, be ejected higher, and have a better heating effect. In addition, the hollow cylinder at the lower end of the nozzle 3 can also be made of insulating material, so that the plasma can only be generated between the upper frustum of the nozzle 3 and the electrode head 22, avoiding liquid residue on the conductive parts of the nozzle 3 when liquid accumulates.

[0046] In this embodiment, the plasma needle 2 includes an electrode needle 21 and an electrode head 22. One end of the electrode needle 21, protruding from the receiving hole 14, is threaded, and the electrode head 22 is connected to the electrode needle 21 via the thread. The electrode head 22 is entirely conical and is located completely inside the nozzle 3. Without a fan blowing air, the plasma is initially generated inside the nozzle 3, allowing sufficient space for plasma acceleration. When assembling this waterproof plasma generating assembly, the electrode needle 21 can be first passed through the receiving hole 14, the electrode head 22 can be installed onto the electrode needle 21, and then the nozzle 3 can be connected to the connecting post 111. The assembly is relatively simple, and replacement of parts is convenient when the electrode head 22 or other components are worn, thus extending the service life of the electric gas stove.

[0047] This application also proposes a burner head, which includes multiple waterproof plasma generating components and a base plate. The nozzle 3 has an external thread at its bottom end and is connected to the base plate via the external thread. The base plate connects and fixes the multiple waterproof plasma generating components, which generate rotating plasma to heat the cookware.

[0048] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application 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 application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A waterproof plasma generating assembly, characterized in that, Includes cyclone tubes, plasma needles, and nozzles; The cyclone tube is provided with a longitudinal receiving hole, through which the plasma needle passes. The cyclone tube includes a cyclone tube body and a boss. The boss is located at the upper end of the cyclone tube body. The tip of the plasma needle passes through the cyclone tube body and then protrudes from the top of the boss. The nozzle has a hollow structure, and the bottom end of the nozzle is fixedly connected to the cyclone tube body. The boss is located inside the nozzle. The plasma needle is used to be electrically connected to one pole of the power supply, and the nozzle is used to be electrically connected to the other pole of the power supply. The cyclone tube body is also provided with a plurality of through holes, the through holes including a first opening provided on the upper surface of the cyclone tube body, the first opening being located inside the nozzle; The cyclone tube body includes a connecting column, which is located at the lower end of the boss, and the cross-sectional area of ​​the connecting column is larger than the cross-sectional area of ​​the boss; the connecting column is threadedly connected to the lower end of the nozzle. Multiple through holes are circumferentially arranged on the cyclone tube body, and the cross-section of each through hole is circular. Each through hole also includes a second opening provided on the lower surface of the cyclone tube body, and the area of ​​the first opening is smaller than the area of ​​the second opening. The through hole is generally shaped like an oblique column, and the projection of the first opening onto the lower surface of the cyclone tube body does not coincide with the second opening at all.

2. The waterproof plasma generating assembly according to claim 1, characterized in that, The plasma needle includes an electrode needle and an electrode head. The end of the electrode needle that protrudes from the receiving hole is threaded, and the electrode head is connected to the electrode needle via the thread.

3. The waterproof plasma generating assembly according to claim 2, characterized in that, The electrode head is cone-shaped and is located entirely inside the nozzle.

4. A waterproof plasma generating assembly according to claim 1, characterized in that, The cyclone tube body also includes a fixing column, which is located at the lower end of the connecting column, and the cross-sectional area of ​​the fixing column is larger than that of the connecting column.

5. A waterproof plasma generating assembly according to claim 1, wherein The cross-sectional area of ​​the nozzle at the end furthest from the cyclone tube is smaller than the cross-sectional area at the other end.

6. A waterproof plasma generating assembly according to claim 1, wherein The nozzle has an external thread at its bottom end, which is used to connect to the base plate.

7. A stove head, characterized in that, It includes a plurality of waterproof plasma generating components and a base plate as described in any one of claims 1-6, wherein the plurality of waterproof plasma generating components are fixedly mounted on the base plate.

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