Ozone-eliminating electric flame stove

Abstract

The present invention discloses an electric flame stove capable of eliminating ozone, comprising: a stove body, a magnetic energy box mounted at the upper end of the stove body, and a burner mounted within the stove body; a magnetron is mounted within the magnetic energy box at the microwave emission port. The present invention utilizes high-frequency electromagnetic waves to excite the initial plasma, increasing the temperature and efficiency of the "electric flame," meeting the requirements of high-temperature cooking such as stir-frying. The present invention utilizes high-frequency electromagnetic waves to accelerate the reaction of active particles (oxygen ions O⁺ or oxygen atoms O) in the plasma with ozone, ultimately decomposing and reducing ozone molecules and suppressing ozone leakage. When the stove is not in use, the plasma density within the dual furnace chambers is low, disconnecting the microwave switch and stopping the magnetron operation, thus eliminating microwave leakage at the source. The present invention also utilizes cooling grooves distributed in an annular pattern on the sidewalls of the second furnace chamber, forming a continuous gas barrier surrounding the second furnace chamber, protecting the magnetron and the sidewalls from ultra-high temperatures.

Description

Technical Field

[0001] The present invention particularly relates to electric flame cookers. Background Art

[0002] In today's society, electric flame cookers are becoming increasingly popular and widely used as fast and efficient cooking devices. The main operating principle of electric flame cookers is to create an arc through the electric shock of electrodes, using the Joule heat of the arc to heat the cookware. However, the ozone generated by traditional electric flame cookers has gradually attracted attention. Ozone is a strong oxidant that is harmful to the human respiratory system and eyes, and long-term exposure may cause health problems. Therefore, various electric flame cookers with features that can suppress ozone emissions have been developed.

[0003] For example, patent application number CN202311071564.X proposes an electric flame stove that can suppress ozone. This prior art uses a small amount of hydrogen to participate in combustion, which rapidly decomposes the ozone formed by the discharge into water mist and oxygen.

[0004] However, in actual use of this invention patent, the hydrogen tank poses a safety hazard and needs to be replaced frequently, causing trouble to users.

[0005] In addition, each high-voltage discharge device in this invention patent uses an electrode needle to ionize the gas, and the plasma flows rapidly with the airflow, so the electron density cannot be increased, resulting in low efficiency. Even if a high-power current is input, the energy of the high-power input is difficult to convert into the "high-energy state" of the plasma (particle excited state, dissociated state), but instead produces a large amount of loss.

[0006] Therefore, the present invention aims to provide an electric flame cooker which reduces ozone emission, has no potential safety hazard and is highly efficient. Summary of the Invention

[0007] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0008] An electric flame stove capable of eliminating ozone comprises: a stove body, a magnetic energy box installed on the upper end of the stove body, and a burner installed in the stove body;

[0009] The furnace head is an annular structure with an internal cavity, the inner wall of which is annularly enclosed to form a first furnace, and a plurality of plasma torches are installed on the inner wall of the furnace head;

[0010] The magnetic energy box is provided with a second furnace coaxial with the first furnace, a microwave emission port is provided on the side wall of the second furnace, and a magnetron is installed inside the magnetic energy box at the microwave emission port;

[0011] Preferably, a mounting ring is provided at the bottom of the stove body, the burner is installed in the mounting ring, and the upper end surface of the burner is in contact with the lower end surface of the magnetic energy box;

[0012] Preferably, the burner head is provided with a first air intake device, and the first air intake device is communicated with the inner cavity of the burner head;

[0013] Preferably, the plasma torch is provided with a plurality of air inlet holes located inside the furnace head, and the air inlet holes connect the interior of the furnace head with the interior of the plasma torch;

[0014] Preferably, a plurality of cooling grooves communicating with the interior of the magnetic energy box are further provided on the side wall of the second furnace, and a second air intake device is provided at the bottom of the magnetic energy box, and the second air intake device is communicated with the interior of the magnetic energy box;

[0015] Preferably, the magnetic energy box is made of metal material, and the shell of the burner is made of metal material;

[0016] Preferably, a pot ring is installed on the upper end of the magnetic energy box located outside the second furnace, and the pot ring is made of metal material;

[0017] Preferably, a pot detection device is further installed on the top surface of the pot ring, and the pot detection device is connected to and controls the microwave switch;

[0018] Preferably, a circuit module is installed in the stove body, and the circuit module is electrically connected to the magnetron via a microwave switch.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The present invention uses high-frequency electromagnetic waves to excite the initial plasma, which increases the temperature and efficiency of the "electric flame" and meets the needs of high-temperature cooking such as stir-frying in the kitchen;

[0021] The present invention uses high-frequency electromagnetic waves to accelerate the reaction of active particles (oxygen ions O⁺ or oxygen atoms O) in the plasma with ozone, ultimately decomposing and reducing ozone molecules and inhibiting ozone overflow;

[0022] When in the "no pot" state, the density of plasma in the double furnace is low, the microwave switch is disconnected, the magnetron stops working, and microwave leakage is eliminated from the source;

[0023] The cooling grooves of the present invention are distributed in an annular shape on the side wall of the second furnace, forming a continuous gas barrier surrounding the second furnace, so as to protect the magnetron and the side wall of the second furnace from being affected by ultra-high temperature.

[0024] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0026] Figure 1 It is a structural cross-sectional view of the present invention.

[0027] Figure 2 yes Figure 1 Enlarged view of the area circled in center A.

[0028] Figure 3 It is an exploded view of the present invention.

[0029] Figure 4 It is an enlarged view of the second furnace of the present invention.

[0030] Figure 5 It is the structural diagram of the burner head of the present invention. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are 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 limiting the present invention.

[0033] Furthermore, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; internal communication between two components; and wireless or wired connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] 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.

[0035] See also Figures 1 to 5 In an embodiment of the present invention, an electric flame stove capable of eliminating ozone includes:

[0036] The stove body 1 has a mounting ring 11 at its bottom, and the circuit module is housed inside the stove body 1;

[0037] The burner head 2 is an annular cavity structure and is installed in the mounting ring 11 of the stove body 1. Its inner wall encloses a first furnace 200, and multiple plasma torches 21 are evenly installed on its inner wall. The plasma torches 21 have multiple air inlet holes 210, so that the interior of the burner head 2 is connected to the interior of the plasma torches 21. The burner head 2 is also equipped with a first air inlet device 6 to supply air to the inner cavity of the burner head 2;

[0038] The magnetic energy box 3 is a metal structure, which houses a second furnace 300. A second air inlet device 7 is provided at the bottom of the magnetic energy box 3. A pot ring 4 is also installed at the top of the magnetic energy box 3. A microwave emitting port 31 and a cooling groove 32 are provided on the side wall of the second furnace 300.

[0039] The magnetron 5 is installed inside the magnetic energy box 3 at the microwave emission port 31 .

[0040] The present invention adopts the coaxial design of the double hearth and the pot ring 4, and the double hearth and the pot ring 4 are mutually connected up and down. The bottom of the first hearth 200 can be hollow or closed, and an air intake fan can also be installed at the same time. Example 1

[0041] When the electric flame stove is working normally, a pot is placed on the pot ring 4, and the first air inlet device 6 supplies gas (air) to the inner cavity of the burner 2, and the gas enters the torch body of the plasma torch 21 through the air inlet hole 210;

[0042] The circuit module outputs 10kV high voltage electricity to the plasma torch 21. The high voltage electricity breaks down the gas to generate high-temperature initial plasma above 1000°C. Multiple initial plasmas are ejected and gathered near the central axis of the first furnace 200. Under the action of "thermal buoyancy", the gathered initial plasmas enter the second furnace 300.

[0043] The pot detection device 41 detects that there is a pot above the pot ring 4, and turns on the microwave switch to put the magnetron 5 into working state. The high-frequency electromagnetic waves emitted by the magnetron 5 are absorbed by the initial plasma.

[0044] When high-power electromagnetic waves enter the plasma, they trigger an "electron avalanche effect" phenomenon, and the electron density in the plasma increases sharply. At this time, the plasma can absorb high-power electromagnetic waves, greatly increasing the plasma ionization degree, and forming a microwave-excited plasma of 1500-2000℃ in the furnace, which meets the high-temperature cooking needs such as stir-frying in the kitchen. Example 2

[0045] When high-voltage breakdown ionization generates the initial plasma, oxygen ions O⁺ easily combine with unionized oxygen molecules O2 to form ozone O3;

[0046] The high-frequency electromagnetic waves emitted by the magnetron 5 accelerate the reaction of active particles in the plasma (oxygen ions O⁺ or oxygen atoms O) with ozone (O+O3→2O2), ultimately accelerating the decomposition and reduction of ozone molecules and suppressing ozone overflow. Example 3

[0047] The burner head 2, the magnetic energy box 3 and the pot ring 4 of the present invention are all made of metal materials, and the metal conductor has a shielding effect on electromagnetic waves.

[0048] When in the "pot" state, the density of plasma in the double furnace is relatively high. At this time, the plasma absorbs electromagnetic waves like metal, thereby playing an electromagnetic shielding role.

[0049] Even in actual application, a small amount of electromagnetic waves may leak out, but metal pots (iron pots) are usually used for cooking, which further shield the electromagnetic waves. Therefore, the present invention is more suitable for metal pots.

[0050] When in the "no pot" state, the density of plasma in the double furnace is relatively low. At this time, the microwave switch is disconnected and the magnetron 5 stops working, thus eliminating microwave leakage from the source. Example 4

[0051] Cooling grooves 32 are distributed in an annular pattern along the sidewall of the second furnace 300. Each cooling groove 32 is elongated, with its outlet tangentially extending along the sidewall of the second furnace 300. Therefore, the second air inlet device 7 introduces air into the interior of the magnetic energy box 3. Under pressure, the gas flows along the annular sidewall, forming a continuous gas barrier ("gas wall") surrounding the second furnace 300. This "gas wall" creates a physical barrier between the sidewall of the second furnace 300 and the ultrahigh-temperature excited plasma, protecting the magnetron 5 and the sidewall of the second furnace 300 from the effects of ultrahigh temperatures.

[0052] 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 invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. An electric flame cooker capable of eliminating ozone, characterized in that: include: The stove body, the magnetic energy box installed on the upper end of the stove body, and the burner installed in the stove body; The furnace head is an annular structure with an internal cavity, the inner wall of which is annularly enclosed to form a first furnace, and a plurality of plasma torches are installed on the inner wall of the furnace head; The magnetic energy box is provided with a second furnace coaxial with the first furnace, a microwave emission port is opened on the side wall of the second furnace, and a magnetron is installed at the microwave emission port inside the magnetic energy box.

2. The ozone-eliminating electric flame cooker according to claim 1, characterized in that: A mounting ring is provided at the bottom of the stove body, the burner head is mounted in the mounting ring, and the upper end surface of the burner head is in contact with the lower end surface of the magnetic energy box.

3. The electric flame cooker capable of eliminating ozone according to claim 1, characterized in that: The burner head is equipped with a first air intake device, which is communicated with the inner cavity of the burner head.

4. The electric flame cooker capable of eliminating ozone according to claim 1, characterized in that: The plasma torch is provided with a plurality of air inlet holes located inside the furnace head, and the air inlet holes enable the interior of the furnace head to communicate with the interior of the plasma torch.

5. The electric flame cooker capable of eliminating ozone according to claim 1, characterized in that: A plurality of cooling grooves communicating with the interior of the magnetic energy box are further provided on the side wall of the second furnace. A second air intake device is provided at the bottom of the magnetic energy box, and the second air intake device is communicated with the interior of the magnetic energy box.

6. The electric flame cooker capable of eliminating ozone according to claim 1, characterized in that: The magnetic energy box is made of metal material, and the shell of the burner is made of metal material.

7. The electric flame cooker capable of eliminating ozone according to claim 1, characterized in that: A pot ring is installed on the upper end of the magnetic energy box, which is located outside the second furnace. The pot ring is made of metal material.

8. The electric flame cooker capable of eliminating ozone according to claim 7, characterized in that: A pot detection device is also installed on the top surface of the pot ring, and the pot detection device is connected to and controls the microwave switch.

9. The electric flame cooker capable of eliminating ozone according to claim 1, characterized in that: A circuit module is installed in the stove body, and the circuit module is electrically connected to the magnetron via a microwave switch.

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