Stove burner

Abstract

The invention provides a stove burner which comprises a furnace end, an ejector and a burning component, one end of the furnace end is connected with the burning component, and the other end of the furnace end is connected with the ejector; the combustion component comprises a combustion chamber; an outer fire cover is arranged on the fire cover seat; a combustion plate is arranged in the outer fire cover; and the combustion part and the furnace end can be integrally and detachably connected. The burner cap seat and the outer burner cap are buckled with each other to form an annular integral structure, and the burning plate is arranged on the outer burner cap, so that the burning plate can be integrally detached along with a burning part, namely, a part above the burner is arranged to be of an integrally detached structure, operation steps in the cleaning process of a user are reduced, and the service life of the burner is prolonged. And the use experience of the user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas cookers, and in particular to a cooker burner. Background Art

[0002] In the current prior art, a stove burner generally comprises a burner head, a fire cover seat, an inner fire cover and an outer fire cover.

[0003] The Chinese invention patent with application number CN201810020450.5 discloses a three-ring fire burner and gas stove that are easy to disassemble, including a burner head, on which a fire cover seat is installed, on which an outer ring fire cover, an inner ring fire cover and a central fire cover are detachably installed, and fire outlet holes are respectively provided on the outer ring fire cover, the inner ring fire cover and the central fire cover, and the fire cover seat is composed of a split upper fire cover seat and a lower fire cover seat, and the lower fire cover seat is detachably installed on the burner head. In this solution, the fire cover, the fire cover seat and the burner head are all detachable, and the fire cover seat is divided into two detachably connected parts, which is convenient for daily cleaning and maintenance.

[0004] However, in the above solution, the components above the burner are scattered and complicated. If the part below the fire cover seat is to be cleaned, the parts above the burner need to be disassembled and installed one by one. The operation steps are cumbersome, which seriously affects the user experience.

[0005] Therefore, designing a burner that helps reduce the number of operating steps during the user's cleaning process has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a stove burner. By arranging the combustion components as an integrally detachable structure, the components above the stove head can be detached as a whole, thereby solving the problem that the existing burner is not conducive to daily cleaning by users due to the scattered and complex components above the stove head and the cumbersome disassembly and assembly steps.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A stove burner comprises a burner head, an ejector, and a combustion component, wherein one end of the burner head is connected to the combustion component, and the other end is connected to the ejector; the combustion component comprises:

[0009] a fire cover seat, on which an outer fire cover is arranged;

[0010] A combustion plate is provided inside the outer fire cover;

[0011] The combustion component and the burner head are connected in an integral and detachable manner.

[0012] Furthermore, the burner head comprises two coaxially arranged inner ring airflow channels and outer ring airflow channels, and the inner ring airflow channel and the outer ring airflow channel are detachably connected to the outer fire cover and the fire cover seat respectively.

[0013] Furthermore, the upper surface of the outer fire cover extends from the inner wall of the outer fire cover toward the central axis of the outer fire cover and the direction of the burner to form a connecting portion;

[0014] The connecting portion is detachably connected to the inner ring airflow channel of the furnace head.

[0015] The bottom of the fire cover seat is detachably connected to the outer ring airflow channel of the burner head.

[0016] Further, the upper surface of the outer fire cover is a first curved surface, the connecting portion is a second curved surface, the combustion plate is arranged at the connection between the first curved surface and the second curved surface, the curvature of the first curved surface is smaller than the curvature of the second curved surface, and the second curved surface is arranged coaxially with the combustion plate;

[0017] The port of the connecting portion is connected to the inner ring airflow channel of the furnace head.

[0018] Further, the bottom of the fire cover seat includes a first straight section, a second straight section, and a third straight section, the first straight section abuts against the side wall of the outer fire cover, the second straight section is horizontally arranged relative to the outer fire cover, the first straight section and the second straight section are vertically arranged, the second straight section and the third straight section are connected to form a bending portion, the bending portion is gradually contracted from the connection between the second straight section and the third straight section to the direction of the outer ring airflow channel, and the third straight section is sleeved in the side wall of the outer ring airflow channel;

[0019] The third straight section at the bottom of the fire cover seat is detachably connected to the side wall of the outer ring airflow channel.

[0020] Furthermore, the furnace head is connected to the first ejector of the ejector to form an inner ring airflow channel;

[0021] The inner ring airflow channel is a cylindrical structure, and the inner ring airflow channel includes an inner ring airflow channel side wall that can be sleeved with the connecting portion. The inner ring airflow channel is used to transport fuel gas to the combustion plate.

[0022] Furthermore, the furnace head is connected to the second ejector of the ejector to form an outer ring airflow channel;

[0023] The outer ring airflow channel comprises an outer ring airflow channel side wall which can be sleeved with the bottom of the fire cover seat, and the outer ring airflow channel is used to transport gas to the outer wall of the outer fire cover.

[0024] Furthermore, the outer peripheral wall of the outer ring airflow channel of the burner head is provided with a beveled surface; the beveled surface is arranged in a ring around the central axis of the burner head; and the beveled surface extends obliquely upward from the outer ring airflow channel from the connection with the second ejector to the coaxial plane of the connection between the inner ring airflow channel and the first ejector.

[0025] Furthermore, the furnace head also includes an inner ring pipe opening and an outer ring pipe opening. The inner part of the outer ring airflow channel is spirally extended from the connection between the second ejector and the outer ring airflow channel to the outer ring pipe opening, and extends from bottom to top around the side wall of the inner ring airflow channel to the outer ring pipe opening.

[0026] Furthermore, the connection position between the outer ring airflow channel of the burner and the fire cover seat is higher than the connection position between the inner ring airflow channel of the burner and the connecting part, and the annular cavity formed between the outer fire cover and the fire cover seat gradually shrinks from outside to inside;

[0027] The connection between the outer fire cover, the fire cover seat and the burner head is shrunk to match the size of the outer ring air flow channel.

[0028] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0029] 1. The present invention forms an annular integral structure by arranging a fire cover seat and an outer fire cover to interlock with each other, and arranges a combustion plate on the outer fire cover, so that the combustion plate can be disassembled integrally with the combustion components, that is, the components above the burner head are arranged as an integral disassembly structure, which is beneficial to reduce the number of operating steps during the user's cleaning process and improve the user's experience.

[0030] 2. The present invention replaces the fire cover of the existing combustion system with a combustion plate, and adds a high-transmittance plate on the upper part of the combustion plate, so that the infrared rays generated by the combustion plate can pass through the high-transmittance plate to radiate heat to the bottom of the pot. There is a certain gap between the high-transmittance plate and the radiation plate, and the high-temperature smoke generated by the combustion plate can flow upward smoothly, and then flow out through the surrounding gaps to continue to convectively exchange heat with the bottom of the pot.

[0031] 3. The present invention solves the problem that the combustion plate is easy to clog and difficult to clean. At the same time, the combustion plate has no airflow resistance, can burn stably, and has less heat loss from high-temperature flue gas. At the same time, by adjusting the assembly form of the high-transmittance plate and the outer fire cover, the cleaning dead corner problem of the middle annular cavity of the existing atmospheric burner can be solved.

[0032] 4. The infrared rays generated by the combustion plate can radiate heat to the bottom of the pot through the high-transmittance plate

[0033] High-transmittance plate outer diameter ≥ combustion plate outer diameter

[0034] The gap between the high-transmittance plate and the combustion plate is greater than 1mm, preferably 5-10mm

[0035] The material of the high-transmittance plate is a material with high infrared transmittance

[0036] The high-transparency plate can be installed higher or lower than the upper surface of the outer fire cover.

[0037] There is a certain gap between the inner fire cover mounting seat and the inner circle of the outer fire cover.

[0038] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0040] Figure 1 This is a schematic diagram of the overall structure of a burner in an embodiment of the present invention;

[0041] Figure 2 is a cross-sectional view of a burner in an embodiment of the present invention;

[0042] Figure 3 An exploded view of the assembly structure between the combustion component and the burner head in an embodiment of the present invention;

[0043] Figure 4 is a cross-sectional view of a first cross section of a combustion structure in an embodiment of the present invention;

[0044] Figure 5 is a cross-sectional view of a second cross section of the combustion structure in an embodiment of the present invention;

[0045] Figure 6 It is a structural schematic diagram of a combustion structure in an embodiment of the present invention;

[0046] Figure 7 A schematic diagram of the structure of the first end of the fire transmission channel in an embodiment of the present invention;

[0047] Figure 8 Another structural schematic diagram of the first end of the fire transmission channel in an embodiment of the present invention;

[0048] Fig. 9 A schematic diagram of the structure of the second end of the fire transmission channel in an embodiment of the present invention;

[0049] Fig.10 Another structural schematic diagram of the second end of the fire transmission channel in an embodiment of the present invention;

[0050] Fig.11 It is a schematic diagram of the structure of the inner fire cover in an embodiment of the present invention;

[0051] Fig.12 This is a schematic diagram of the assembly structure of the inner fire cover and the turbulence plate in an embodiment of the present invention;

[0052] Fig.13 It is a structural schematic diagram of the lower lining plate in an embodiment of the present invention;

[0053] Fig.14 This is a schematic diagram of the assembly structure of the high-transparency plate in an embodiment of the present invention;

[0054] Fig.15 is a cross-sectional view of the assembly structure of the high-transparency plate in an embodiment of the present invention;

[0055] Fig.16 It is a structural schematic diagram of an upper pressing plate in an embodiment of the present invention;

[0056] Fig.17 Schematic diagram of the structure of the support plate in an embodiment of the present invention.

[0057] Description of the main components in the figure:

[0058] 10, high-transparency plate; 100, mounting shell; 100-a, connecting assembly; 101, upper pressure plate; 1011, stop portion; 1012, transition portion; 1013, shielding portion; 1014, side plate; 1015, fixing clip; 1015-a, first through hole; 102, support plate; 1021, fixing pin; 1021-a, first stop platform; 3011-a, first connecting plate; 1021-c, first fixing column; 1021-d, first fixing hole; 1022, short pin; 1023, outer ring wall; 1023-a, second through hole; 1024, supporting groove; 200, inner Fire cover; 20, combustion plate; 201, upper guard plate; 2011, top guard plate; 2012, side guard plate; 202, lower lining plate; 2021, side lining plate; 2022, receiving part; 2023-a, connecting ear plate; 203, gasket; 204, turbulent plate; 2041, connecting wall; 205, auxiliary air flow channel; 300, combustion component; 300-a, annular cavity; 300-b, joint cavity; 300-c, connecting cavity; 300-d, outer annular cavity; 30, outer fire cover; 3011, first leg; 3011-b, second fixing hole; 305, ignition part; 3050 , fire transmission channel; 3051, ignition groove; 3051-a, small hole in the first groove; 3051-b, small hole in the second groove; 3053, first air transmission channel; 3054, second air transmission channel; 3055, first cavity; 3057, ignition hole; 3057-a, first ignition hole; 3057-b, second ignition hole; 307, second boss; 3081, groove; 3082, fire transmission groove; 3083, fire stabilizing hole; 3084, fire outlet hole; 3084-a, first fire outlet hole; 3084-b, second fire outlet hole; 309, second ring wall; 310, first ring platform; 311 , second ring platform; 312, third ring platform; 314, first ring wall; 315, through-channel; 317-a, connecting part; 40, fire cover seat; 4121, first straight section; 4122, second straight section; 4123, third straight section; 50, liquid receiving tray; 60, ejector; 601, first ejector; 602, second ejector; 70, burner head; 701, inner ring airflow channel; 7011, inner ring airflow channel side wall; 702, outer ring airflow channel; 7021, outer ring airflow channel side wall; 704, inner ring pipe mouth; 705, outer ring pipe mouth; 80, thermocouple; 90, ignition needle.

[0059] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0061] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Embodiment 1

[0064] like Figures 1 to 17 As shown, in an embodiment of the present invention, a burner is introduced, which includes a burner head 70 , an ejector 60 , a combustion component 300 and an inner fire cover 200 .

[0065] like Figure 1 As shown, one end of the burner head 70 is connected to the combustion component 300 , and the other end is connected to the ejector 60 .

[0066] like Figure 2 As shown, the burner head 70 includes two coaxially arranged inner ring airflow channels 701 and outer ring airflow channels 702, and the outer ring airflow channel 702 is arranged around the inner ring airflow channel 701. The combustion component 300 is installed on the top of the burner head 70 in an integral and detachable manner, including an annular cavity 300-a, the inner periphery of the annular cavity 300-a is connected to the outer ring airflow channel 702, and a fire outlet 3084 connecting the annular cavity 300-a and the outside is provided on the outer edge of the combustion component 300; the inner periphery of the combustion component 300 is connected to the inner ring airflow channel 701. The inner fire cover 200 is coaxially buckled with the top of the combustion component 300.

[0067] Specifically, Figure 4 and Figure 5As shown, the annular cavity 300-a includes a joining cavity 300-b, a connecting cavity 300-c and an outer ring cavity 300-d which are sequentially arranged in a direction away from the axis of the combustion component 300. The joining cavity 300-b extends along the axial direction of the combustion component 300 and is connected to the top of the outer ring airflow channel 702. The outer ring cavity 300-d is arranged around the outer periphery of the joining cavity 300-b. The connecting cavity 300-c is arranged between the joining cavity 300-b and the outer ring cavity 300-d. The joining cavity 300-b and the outer ring cavity 300-d are connected through the connecting cavity 300-c. The gas in the outer ring airflow channel 702 flows through the joining cavity 300-b, the connecting cavity 300-c and the outer ring cavity 300-d in sequence, and flows out from the ignition holes 3084 on the outer periphery of the outer ring cavity 300-d and ignites.

[0068] Preferably, in this embodiment, the connecting cavity 300-c extends radially along the combustion component 300, and one end of the connecting cavity 300-c close to the axis of the combustion component 300 is connected to the upper end of the coupling cavity 300-b, and one end of the connecting cavity 300-c away from the axis of the combustion component 300 is connected to the inner periphery of the outer ring cavity 300-d.

[0069] Preferably, the connecting chamber 300-c includes a plurality of connecting chambers 300-c arranged at intervals along the circumference of the combustion component 300. In this embodiment, a secondary air channel is formed between two adjacent connecting chambers 300-c, and the secondary air channel is used to connect the outside with the combustion structure on the inner periphery of the combustion component 300. The combustion structure on the inner periphery of the combustion component 300 is the inner fire cover 200.

[0070] Specifically, in this embodiment, the combustion component 300 includes a fire cover seat 40 and an outer fire cover 30 which are buckled together to form an annular cavity 300-a, and the outer fire cover 30 is buckled above the fire cover seat 40; the inner ring airflow channel 701 and the outer ring airflow channel 702 are respectively detachably connected to the outer fire cover 30 and the fire cover seat 40.

[0071] like Figure 3 As shown, the outer peripheral wall of the outer ring airflow channel 702 of the burner head 70 is provided with a chamfered surface; the chamfered surface is arranged in a ring around the central axis of the burner head 70; and the chamfered surface extends obliquely upward from the outer ring airflow channel 702 from the connection with the second ejector 602 to the coaxial surface of the connection between the inner ring airflow channel 701 and the first ejector 601. The burner head 70 is provided with the chamfered surface to control the gas flow velocity. When the gas and air enter the burner head 70 at the same time, the gas flow velocity at the chamfered surface changes, and the chamfered surface plays a role in uniformly mixing the gas and air, so that the gas and air are evenly mixed.

[0072] The furnace head 70 also includes an inner ring pipe opening 704 and an outer ring pipe opening 705. The inner part of the outer ring airflow channel 702 is spirally extended from the connection between the second ejector 602 and the outer ring airflow channel 702 to the outer ring pipe opening 705, and extends from the bottom to the top around the side wall of the inner ring airflow channel 701 to the outer ring pipe opening 705.

[0073] The burner also includes an ejector 60, which can eject the gas and primary air and mix them and then transfer them to the burner head 70. The number of ejectors 60 is one or more. In this embodiment, the ejector 60 includes a first ejector 601 and a second ejector 602. The gas is divided into two streams from the first ejector 601 and the second ejector 602 and enters the inner ring airflow channel 701 and the outer ring airflow channel 702 of the burner head 70 respectively. The first ejector 601 is connected to the inner ring airflow channel 701, and is used to provide an air-fuel mixture to the inner ring airflow channel 701, and then provide gas to the inner fire cover 200. The second ejector 602 is connected to the outer ring airflow channel 702, and the second ejector 602 is used to provide gas to the outer ring airflow channel 702, and then provide gas to the outer fire cover 30.

[0074] The part of the burner head 70 close to the outer fire cover 30 is vertically arranged along the central axis direction of the burner, and the end close to the ejector 60 is provided with a corner at the connection with the ejector 60, and the angle of the corner is set between 80° and 100°; the two groups of ejectors 60 are detachably connected to the burner head 70.

[0075] like Figure 4 and Figure 5 As shown, in this embodiment, the annular cavity 300-a is formed between the outer fire cover 30 and the fire cover seat 40, and the size of the annular cavity 300-a gradually shrinks from the first straight section 4121 toward the burner head 70. Specifically, the outer periphery of the top wall of the combustion component 300 extends downwardly along the direction close to the axis of the combustion component 300, and the inner periphery of the top wall of the combustion component 300 extends downwardly along the direction close to the axis of the combustion component 300, and is at least partially inserted into the inner ring pipe opening 704 at the top of the inner ring airflow channel 701.

[0076] The bottom wall of the combustion component 300 is horizontally arranged along the radial direction of the burner head 70 , and the inner edge of the bottom wall of the combustion component 300 extends downward and is at least partially inserted into the outer ring pipe opening 705 of the outer ring airflow channel 702 .

[0077] Specifically, the outer fire cover 30 is buckled on the top of the fire cover seat 40, the bottom wall of the fire cover seat 40 constitutes the bottom wall of the combustion component 300, and the top wall of the outer fire cover 30 constitutes the top wall of the combustion component 300. The bottom wall of the fire cover seat 40 extends horizontally and abuts against the upper end of the outer ring airflow channel 702, the outer edge of the bottom wall of the fire cover seat 40 extends vertically upward, and the inner edge of the bottom wall of the fire cover seat 40 extends vertically downward and is inserted into the side wall of the outer ring airflow channel 702 away from the axis of the combustion component 300; the outer fire cover 30 includes a peripheral wall extending in an annular direction and a top wall extending toward the inner periphery of the peripheral wall, the peripheral wall of the outer fire cover 30 is at least partially inserted into the fire cover seat 40, and the top wall of the outer fire cover 30 extends downward from the upper end of the peripheral wall of the outer fire cover 30 in a direction close to the axis of the combustion component 300, and then bends downward and extends, and is at least partially inserted into the top of the side wall of the inner ring airflow channel 701.

[0078] Preferably, the curvature of the inner circumference of the top wall of the combustion component 300 that bends downward gradually increases in a direction approaching the axis of the combustion component 300 .

[0079] Specifically, Figure 6 As shown, in this embodiment, the inner periphery of the top wall of the outer fire cover 30 is bent and extended downward in a direction close to its axis to form a connecting portion 317-a. The connecting portion 317-a is annular and coaxial with the outer fire cover 30. The downward curvature of the connecting portion 317-a gradually increases in a direction close to the axis of the combustion component 300. The lower end of the connecting portion 317-a is vertically inserted into the top side wall of the inner ring airflow channel 701.

[0080] In this embodiment, the connecting portion 317 - a includes a third annular platform 312 and a second boss 307 . The inner diameter of the inner ring pipe opening 704 is larger than the overall inner diameter of the inner ring airflow channel 701 , and the lower end of the connecting portion 317 - a is provided with a second boss 307 matching the shape of the inner ring pipe opening 704 .

[0081] Specifically, Figures 4 to 6 As shown, in this embodiment, the top wall of the outer fire cover 30 includes a second annular wall 309, a first annular wall 314, a third annular platform 312 and a second boss 307 which are arranged in sequence along a direction close to its axis. The outer periphery of the second annular wall 309 is connected to the top of the peripheral wall of the outer fire cover 30, and the second annular wall 309 extends downwardly from the top of the peripheral wall of the outer fire cover 30 along a direction close to its axis. The first annular wall 314 extends downwardly from the inner periphery of the second annular wall 309 along a direction close to its axis. The third annular platform 312 bends downward and extends from the inner periphery of the first annular wall 314 along a direction close to its axis. The second boss 307 extends axially downward from the lower end of the third annular platform 312.

[0082] In this embodiment, the outer diameter of the second boss 307 is smaller than the outer diameter of the lower end of the third ring boss 312 , and is equal to the inner diameter of the inner ring nozzle 704 .

[0083] The angle at which the second annular wall 309 is inclined downward in the direction close to the axis is greater than the angle at which the first annular wall 314 is inclined downward in the direction close to the axis.

[0084] In this embodiment, the secondary air channel is correspondingly arranged on the inner periphery of the first annular wall 314, and is an arc-shaped extending around the axis of the combustion component 300. The secondary air channel extends vertically downward along the axial direction. The air inlet of the secondary air channel is at its bottom, correspondingly arranged on the bottom wall of the fire cover seat 40. The air outlet of the secondary air channel is arranged on the first annular wall 314, and is a shape inclined downward in the direction close to the axis.

[0085] Preferably, in this embodiment, the connection position between the outer ring airflow channel 702 of the burner head 70 and the fire cover seat 40 is higher than the connection position between the inner ring airflow channel 701 of the burner head 70 and the connecting portion 317 - a.

[0086] In this embodiment, the fire cover seat 40 is an annular structure.

[0087] The fire cover seat 40 includes a first straight section 4121, a second straight section 4122 and a third straight section 4123, which are integrally formed. Specifically, the inner diameter of the outer ring nozzle 705 is larger than the overall inner diameter of the outer ring airflow channel 702, and the second straight section 4122 extends in the horizontal direction and is an annular plate.

[0088] The inner diameters of the outer ring pipe mouth 705 are the same, the second straight section 4122 is coaxially arranged at the top of the outer ring pipe mouth 705 and abuts against the top of the outer ring pipe mouth 705, the third straight section 4123 extends vertically downward from the inner edge of the second straight section 4122 and is inserted into the outer ring pipe mouth 705, and the first straight section 4121 extends vertically upward from the outer edge of the second straight section 4122.

[0089] In this embodiment, at least part of the lower end of the peripheral wall of the outer fire cover 30 is inserted into the first straight section 4121. The outer edge of the outer fire cover 30 is arranged in a boss shape, and the outer diameter of the part of the lower end of the peripheral wall of the outer fire cover 30 inserted into the first straight section 4121 is smaller than the outer diameter of the peripheral wall of the outer fire cover 30 above the first straight section 4121, and the fire outlet 3084 is arranged on the peripheral wall of the outer fire cover 30 above the first straight section 4121.

[0090] Preferably, in this embodiment, the fire holes 3084 are arranged at intervals along the circumference of the outer fire cover 30, and at least two circles of fire holes 3084 are arranged at intervals along the axial direction of the outer fire cover 30. Preferably, two adjacent circles of fire holes 3084 are staggered in the circumferential direction of the outer fire cover 30.

[0091] Preferably, the distance between two adjacent fire holes 3084 in the same circle of fire holes 3084 is equal to the aperture of one end of the fire hole 3084 away from the axis of the outer fire cover 30.

[0092] Preferably, a circular arc chamfer is provided at the corner between the second straight segment 4122 and the third straight segment 4123 on one side close to the annular cavity 300 - a .

[0093] like Figure 2 As shown, in this embodiment, the inner fire cover 200 is coaxially buckled with the top of the combustion component 300, and the outer edge of the inner fire cover 200 extends radially to the connection between the downwardly inclined portion and the downwardly curved portion of the top wall of the combustion component 300. Specifically, an annular positioning structure is provided at the connection between the downwardly inclined portion and the downwardly curved portion of the top wall of the combustion component 300, and the bottom of the inner fire cover 200 is at least partially inserted into the annular positioning structure.

[0094] In this embodiment, a second ring platform 311 extending upward and a first ring platform 310 extending radially from the lower end of the second ring platform 311 toward the axial direction are provided at the junction of the first ring wall 314 and the third ring platform 312. The overall outer diameter of the inner fire cover 200 is the same as the outer diameter of the second ring platform 311, and the lower end of the inner fire cover 200 is at least partially inserted into the second ring platform 311 and abuts against the first ring platform 310.

[0095] In this embodiment, the inner wall of the secondary air passage on one side close to the axis of the outer fire cover 30 is flush with the outer edge of the inner fire cover 200 .

[0096] Preferably, in this embodiment, the inner fire cover 200 includes at least one combustion plate 20 .

[0097] In this embodiment, the inner fire cover 200 includes a combustion plate 20 and a fixing component, and the fixing component is covered and arranged on the outside of the combustion plate 20 to fix the combustion plate 20 on the outer fire cover 30.

[0098] In this embodiment, the fire cover seat 40 and the inner fire cover 200 are connected by screws.

[0099] Specifically, Figure 3 and Figure 5As shown, a screw column is provided on the inner side of the top wall of the outer fire cover 30, and the screw column extends in the vertical direction. A screw hole extending upward from the bottom surface of the screw column is provided on the screw column, and a third fixing hole corresponding to the screw column and coaxially therewith is provided on the bottom wall of the fire cover seat 40. The neck of the screw passes through the third fixing hole and is connected to the screw column, and the head of the screw abuts against the bottom of the fire cover seat 40, thereby connecting the fire cover seat 40 with the outer fire cover 30 as a whole.

[0100] Specifically, the screw column is arranged on the first annular wall 314, close to the outer edge of the first annular wall 314, and the screw column extends vertically and corresponds to the middle part of one end of the connecting cavity 300-c away from the axis of the burning component 300, and the lower end of the screw column abuts against the inner side of the bottom wall of the fire cover seat 40.

[0101] In this embodiment, the number of the screw columns is the same as the number of the connecting cavities 300-c, and the screw columns are arranged one by one in a corresponding manner to the connecting cavities 300-c. By arranging the screw columns between the fire cover seat 40 and the inner fire cover 200 to extend vertically and correspond to the middle of one end of the connecting cavity 300-c away from the axis of the combustion component 300, the gas can be diverted by the screw columns during the process of flowing from the connecting cavity 300-c to the outer ring cavity 300-d, thereby improving the uniformity of the gas flow in the outer ring cavity 300-d.

[0102] Specifically, the connecting cavities 300-c are provided with four evenly arranged along the circumferential direction, and each connecting cavity 300-c is the same. The screw columns are provided with four screw columns corresponding one to one to the end of each connecting cavity 300-c away from the axis. The fire cover seat 40 and the outer fire cover 30 are connected as a whole by four groups of mutually cooperating screws and screw columns.

[0103] Preferably, in this embodiment, the width between the left and right side walls of the connecting cavity 300-c extending radially along the outer fire cover 30 is greater than the outer diameter of the screw column, and the side of the screw column close to the axis of the outer fire cover 30 is flush with the end of the circumference of the connecting cavity 300-c away from the outer fire cover 30 in the radial direction of the outer fire cover 30, or, the side of the screw column close to the axis of the outer fire cover 30 at least partially extends into the connecting cavity 300-c in the radial direction of the outer fire cover 30, thereby improving the diversion effect of the screw column on the gas.

[0104] like Figure 1 As shown, in this embodiment, the burner also includes a high-transmittance plate 10, which is horizontally and coaxially arranged above the inner fire cover 200, and a first distance is set between the high-transmittance plate 10 and the inner fire cover 200, and a second distance is set between the high-transmittance plate 10 and the outer fire cover 30; preferably, a fixed structure is set on the periphery of the high-transmittance plate 10, and the fixed structure is connected to the outer fire cover 30 through a connecting structure.

[0105] A high-transmittance plate 10 is added to the upper part of the combustion plate 20, so that the infrared rays generated by the combustion plate 20 can pass through the high-transmittance plate 10 to radiate heat to the bottom of the pot. The high-temperature smoke generated by the combustion plate 20 can flow upward, flow out through the surrounding gaps and continue to convectively exchange heat with the bottom of the pot. By adjusting the assembly form of the high-transmittance plate 10 and the outer fire cover 30, the cleaning problem of the middle annular cavity 300-a of the existing atmospheric burner can be solved.

[0106] There is an annular cavity 300-a between the outer fire cover 30 and the fire cover seat 40, and the annular cavity 300-a extends from the first straight section 4121 of the fire cover seat 40 to the connection with the burner head 70; the size of the annular cavity 300-a gradually changes from the first straight section 4121 of the fire cover seat 40 to the third straight section 4123, which is conducive to changing the speed of the gas transmitted from the outer annular airflow channel 702 of the burner head 70 to the outer fire cover 30 again; it is conducive to uniform mixing of the gas and air.

[0107] In this embodiment, the direction of the gas includes: a part of the gas enters the inner annular airflow channel 701 of the burner head 70 through the ejector 60, and then enters the combustion plate 20; the other part of the gas enters the outer annular airflow channel 702 of the burner head 70 through the ejector 60, and then enters the annular cavity 300-a between the outer fire cover 30 and the fire cover seat 40.

[0108] Preferably, the outer diameter of the high-transmittance plate 10 is greater than or equal to the outer diameter of the combustion plate 20, so that the liquid does not easily flow onto the combustion plate 20. The materials of the combustion plate 20 can be selected from foamed metal, bluestone ceramic plate, etc. The combustion plate 20 has a certain heat storage characteristic. The mixed gas of air and fuel gas burns in the combustion plate 20 and then the upper layer of the combustion plate 20 emits infrared rays. The completely burned gas will continue to burn on the surface of the combustion plate 20 to produce a small flame. The heat exchange form of the combustion plate 20 is mainly infrared radiation, supplemented by flue gas convection radiation.

[0109] A combustion plate 20 is arranged inside the outer fire cover 30, and a long pin 1021 and a short pin 1022 are arranged on the fixed structure of the high-transmittance plate 10. The high-transmittance plate 10 is connected to the outer fire cover 30 through the long pin 1021 and the short pin 1022; the infrared rays generated by the combustion plate 20 pass through the high-transmittance plate 10 to radiate heat to the bottom of the pot.

[0110] like Fig.14 As shown, the high-transmittance plate 10 is a circular disc-shaped structure, and the fixing structure of the high-transmittance plate 10 includes a support plate 102 and an upper pressing plate 101. The support plate 102 and the upper pressing plate 101 are annular structures arranged around the high-transmittance plate 10. The inner peripheries of the support plate 102 and the upper pressing plate 101 are clamped on the upper and lower sides of the edge of the high-transmittance plate 10. The support plate 102 and the upper pressing plate 101 are connected to each other to fix the high-transmittance plate 10. The support plate 102 is provided with a long pin 1021 and a short pin 1022. The diameter of the support plate 102 can be the same as the outer diameter of the outer fire cover 30.

[0111] The combustion plate 20 is a disc-shaped structure, and its thickness is greater than that of the high-transmittance plate 10. The combustion plate 20 is provided with an upper guard plate 201, and the upper guard plate 201 is provided with a lower lining plate 202. The upper guard plate 201 is tightly matched with the lower lining plate 202. The bottom of the disc of the combustion plate 20 is also provided with a gasket 203 and a turbulent plate 204. The turbulent plate 204 can be formed into an integral structure with the lower lining plate 202, or can be installed by screws. The gasket 203 and the turbulent plate 204 cooperate with each other.

[0112] The turbulence plate 204 is provided with small holes. The main function of the turbulence plate 204 is to divide the inner annular gas flow into multiple airflows and distribute them more evenly to the combustion plate 20. At the same time, when the pressure at the front end of the burner decays, it prevents the airflow burning in the burner head 70 from flowing back and causing flashback.

[0113] The high-transmittance plate 10 and the outer edge of the outer fire cover 30 form a minimum smoke exhaust gap greater than 2mm, preferably 5-15mm. The gap between the high-transmittance plate 10 and the combustion plate 20 is greater than 1mm, preferably 5-10mm. If the size is too small, the resistance of the combustion plate 20 is too large, resulting in insufficient primary air injection, the airflow of the combustion plate 20 cannot flow normally, the combustion is not complete, and infrared rays cannot be emitted. Too large a size can easily lead to infrared energy attenuation. Furthermore, the material of the high-transmittance plate 10 is a high infrared transmittance material, such as microcrystalline glass, etc., and the upper surface is smooth and can be modified to a concave or convex shape as needed. The installation of the high-transmittance plate 10 can be higher or lower than the upper surface of the outer fire cover 30, preferably flush with the upper surface of the outer fire cover 30, so that the upper surface of the burner is flat and easy to clean. The high-transmittance plate 10 is slightly higher than the outer fire cover 30, forming a certain smoke exhaust gap.

[0114] In this embodiment, a liquid receiving pan 50 is further included. The liquid receiving pan 50 is spaced apart from the combustion component 300. Secondary air flows inward through the gap between the fire cover seat 40 and the liquid receiving pan 50, and then reaches the combustion plate 20 through the secondary air channel on the combustion component 300, so that the gas in the combustion plate 20 can be fully burned.

[0115] It also includes an ignition needle 90 and a thermocouple 80, which are installed on the burner head 70. The working end of the thermocouple 80 corresponds to the fire hole 3084 on the outer edge of the combustion component 300. The working end of the ignition needle 90 extends through any secondary air channel into the combustion component 300 for ignition.

[0116] The high-temperature smoke generated by the combustion of the combustion plate 20 flows out from the smoke exhaust gap. In particular, in order to ensure that the power of the inner ring combustion plate 20 is large enough, the diameter of the combustion plate 20 needs to be greater than 30 mm, preferably 50-80 mm.

[0117] In this embodiment, the fuel gas refers to a mixture of primary air and fuel gas or fuel gas.

[0118] In this embodiment, the burner is a combustible burner of atmospheric and infrared, so that the burner can have the advantages of both atmospheric burner and infrared burner, with large heat load and high thermal efficiency, and can reduce waste emissions and improve environmental protection effects.

[0119] In this embodiment, the high-transparent plate 10 is covered on the top of the combustion plate 20. The heat of the combustion plate 20 can pass through the high-transparent plate 10 and be transferred to the bottom of the pot. The high-transparent plate 10 will not affect the heating effect of the combustion plate 20, or will have little effect on the heating effect of the combustion plate 20, so that the combustion effect of the burner can be ensured. At the same time, the high-transparent plate 10 can block the top of the combustion plate 20. Since the combustion plate 20 is made of a porous material, the high-transparent plate 10 can prevent the soup, impurities, etc. generated by the overflow from flowing onto the combustion plate 20, causing the combustion plate 20 to be blocked. In this way, the stable combustion of the combustion plate 20 can be ensured, and then the stable combustion of the entire burner can be ensured.

[0120] The high-transmittance plate 10 is a material with high infrared transmittance. For example, the transmittance can be above 60%. For example, the high-transmittance plate 10 can be microcrystalline glass, microcrystalline ceramics, or microcrystalline ceramic composite materials. Optionally, the high-transmittance plate 10 is a high-temperature resistant material.

[0121] The thermocouple 80 on the gas stove plays the role of "in the abnormal flameout state, the thermoelectric potential of the thermocouple 80 disappears, and the solenoid valve on the gas pipeline shuts off the gas under the action of the spring to avoid danger." During normal use, the continuous thermoelectric potential of the thermocouple 80 ensures that the solenoid valve of the gas pipeline is always in an open and ventilated state.

[0122] In this embodiment, the upper surface of the outer fire cover 30 is a first curved surface, the connecting portion 317-a is a second curved surface, the combustion plate 20 is arranged at the connection between the first curved surface and the second curved surface, the curvature of the first curved surface is smaller than the curvature of the second curved surface, and the second curved surface is coaxially arranged with the combustion plate 20;

[0123] The port of the connecting portion 317 - a is connected to the inner ring airflow channel 701 of the furnace head 70 .

[0124] Embodiment 2

[0125] like Figures 1 to 17 As shown, this embodiment is used to specifically introduce the assembly structure between the inner fire cover 200 and the combustion component 300 in the above-mentioned embodiment 1.

[0126] like Figure 2 As shown, in this embodiment, the burner includes a burner head 70 , a combustion component 300 and an inner fire cover 200 .

[0127] The burner head 70 includes an inner ring airflow channel 701 and an outer ring airflow channel 702 arranged around the inner ring airflow channel 701; the combustion component 300 is annular, and a fire hole 3084 is provided on the outer edge of the combustion component 300, and the inner edge of the top wall is bent and extended downward and inserted into the top of the inner ring airflow channel 701, and the inner edge of the bottom wall is bent and extended downward and inserted into the side wall of the outer ring airflow channel 702 away from the axis.

[0128] like Figure 6 , Figures 11 to 13 As shown, the top wall of the combustion component 300 is provided with an annular positioning structure arranged around the downwardly bent and extended portion of the top wall; the inner fire cover 200 includes a combustion plate 20, and a fixing component arranged around the combustion plate 20 and used to fix the combustion plate 20, the bottom inner edge of the fixing component protrudes and extends downward, and is at least partially inserted into the annular positioning structure, thereby realizing the positioning and installation of the inner fire cover 200.

[0129] In the present embodiment, the inner fire cover 200 is detachably positioned and installed on the combustion component 300, and the combustion component 300 is arranged as an annular whole and detachably installed on the burner head 70. During daily cleaning, the user can first remove the components above the burner head 70 from the burner head 70 as a whole, and then remove the inner fire cover 200, and clean the inner fire cover 200 and the combustion component 300 separately. On the one hand, the cleaning effect of the burner can be ensured, and on the other hand, during the cleaning process, it can prevent debris on the inner fire cover 200 and the combustion component 300 from falling into the burner head 70, thereby improving the user experience.

[0130] In this embodiment, the combustion component 300 specifically includes an outer fire cover 30 and a fire cover seat 40 which are interlocked to form an annular cavity 300 - a, and the inner fire cover 200 is specifically installed on the outer fire cover 30 .

[0131] The combustion plate 20 is connected to the inner ring airflow channel 701. Generally, the combustion plate 20 is made of porous materials such as porous ceramics or porous metal materials. The gas mixed with air burns in the combustion plate 20 and radiates infrared rays to the outside, providing heat to the pot placed above it.

[0132] The fixing component is arranged on the outer periphery of the combustion plate 20, and is used to fix the combustion plate 20 and connect it with the outer fire cover 30. The combustion plate 20 is fixed and connected with the outer fire cover 30 by the fixing component. On the one hand, it can prevent the combustion plate 20 from falling accidentally. On the other hand, the combustion plate 20 can be removed and installed at the same time as the outer fire cover 30, which is convenient for cleaning.

[0133] In this embodiment, the diameter of the combustion plate 20 is larger than the inner diameter of the positioning structure; the fixing component is a hollow columnar structure arranged around the combustion plate 20, and the upper and lower ends of the fixing component extend in the direction close to the axis of the inner fire cover 200, and are respectively fitted with the upper and lower edges of the combustion plate 20; the inner diameter of the lower end of the fixing component is less than or equal to the inner diameter of the positioning structure, and protrudes downward along the inner wall of the positioning structure.

[0134] Preferably, in this embodiment, the fixing assembly includes a lower lining plate 202 and an upper guard plate 201 .

[0135] Specifically, the lower lining plate 202 includes a first hollow column arranged around the combustion plate 20, and a second hollow column arranged below the first hollow column and having an inner diameter smaller than the diameter of the combustion plate 20. The combustion plate 20 is arranged at the transition connection between the two hollow columns.

[0136] like Fig.13 As shown, in this embodiment, the lower lining plate 202 specifically includes a side lining plate 2021 and a flange 2023 connected thereto through a horizontally bent receiving portion 2022, and the side lining plate 2021 and the flange 2023 connected thereto through the receiving portion 2022 are hollow annular structures. The combustion plate 20 is arranged on the receiving portion 2022, and the flange 2023 extends in the horizontal direction for connecting with the outer fire cover 30.

[0137] Among them, from the appearance, the upper part of the fixed component is a cylinder, and the radius of the cross-section circle of the lower part of the cylinder is reduced to form a receiving portion 2022. The cross-section of the receiving portion 2022 is an inverted "L" shape, including a horizontal plate and a vertical plate connected vertically to each other, wherein the horizontal plate is used to receive the combustion plate 20, and the bottom of the vertical plate extends horizontally toward the inside of the fixed component to form a convex edge 2023, which is used to connect with the outer fire cover 30. The lower liner 202 limits the combustion plate 20 between the side liner 2021 and the receiving portion 2022, forming a horizontal limit on the combustion plate 20 to prevent it from moving horizontally. In this embodiment, the side liner 2021 is a first hollow column, and the vertical plate is a second hollow column.

[0138] Preferably, the height of the side lining plate 2021 is less than or equal to the height of the combustion plate 20. This can reduce the use of materials and reduce production costs while ensuring the effect of the side lining plate 2021 in fixing the combustion plate 20.

[0139] The upper guard plate 201 of the fixing assembly is buckled on the top of the lower lining plate 202. Specifically, the upper guard plate 201 includes a top guard plate 2011 extending horizontally toward the center and a side guard plate 2012 extending vertically downward; the top guard plate 2011 covers a portion of the edge of the top of the combustion plate 20, and the side guard plate 2012 is arranged around the side wall of the combustion plate 20.

[0140] When the fixed components are assembled together, the upper guard plate 201 will be sleeved inside the lower lining plate 202, the inner wall of the side guard plate 2012 will abut against the outer wall of the side lining plate 2021, the upper edge of the side lining plate 2021 will abut against the bottom wall of the top guard plate 2011, and the combustion plate 20 will be arranged between the receiving part 2022 and the top guard plate 2011.

[0141] Preferably, a gap is provided between the outer edge of the combustion plate 20 and the inner circumferential wall of the fixed assembly. Specifically, the outer edge of the combustion plate 20 matches the side lining plate 2021 to prevent the combustion plate 20 from shaking significantly. It should be noted that the matching here not only includes matching the shapes of the two, but also includes matching the diameters of the two. However, matching diameters does not mean that the two are exactly the same. Due to thermal expansion and contraction, the diameter of the preferred combustion plate 20 should be slightly smaller than the side lining plate 2021. This can facilitate installation and prevent damage to the combustion plate 20 due to thermal expansion while fixing and protecting the combustion plate 20.

[0142] Furthermore, the height of the side guard plate 2012 is less than or equal to the height of the side lining plate 2021. Under the premise of ensuring the connection between the upper guard plate 201 and the lower lining plate 202, the contact area between the two is reduced as much as possible, which can reduce heat transfer and reduce the waste of gas combustion heat.

[0143] Further, the thickness of the combustion plate 20 is less than the distance between the top guard plate 2011 and the receiving portion 2022. Due to thermal expansion and contraction, reserving this space in advance can prevent the combustion plate 20 from being damaged due to thermal expansion.

[0144] Preferably, the upper guard plate 201 and the lower lining plate 202 are interference fit or thread fit.

[0145] Furthermore, a gasket 203 is included, which is arranged between the bottom of the combustion plate 20 and the fixing assembly, with its outer edge being in contact with the inner circumferential wall of the fixing assembly, and the inner edge at least partially extending below the combustion plate 20. Specifically, a gasket 203 is provided between the combustion plate 20 and the receiving portion 2022, preferably an elastic heat-insulating gasket 203. The gasket 203 can more effectively reduce heat transfer, and absorb impact energy in the event of a collision, thereby providing better protection for the combustion plate 20.

[0146] Preferably, the gasket 203 includes a first portion extending radially along the combustion plate 20, and a second portion extending axially upward along the combustion plate 20, and the thickness of the second portion is the same as the width of the gap provided between the combustion plate 20 and the inner circumferential wall of the fixed assembly.

[0147] like Figure 6As shown, in this embodiment, the positioning structure includes a first ring platform 310 and a second ring platform 311 arranged on the top of the outer fire cover 30. The second ring platform 311 extends vertically upward from the top wall of the combustion component 300, and the first ring platform 310 extends horizontally from the lower end of the second ring platform 311 in a direction close to the axis of the combustion component 300. The bottom of the fixing component of the inner fire cover 200 is inserted into the second ring platform 311 and abuts against the first ring platform 310. Preferably, the upper end surface of the second ring platform 311 is spaced apart from the inner fire cover 200, and the bottom of the inner fire cover 200 is in contact with the first ring platform 310.

[0148] Specifically, the outer fire cover 30 is provided with a first ring platform 310 and a second ring platform 311 that match the shapes of the convex edge 2023 and the receiving portion 2022, respectively. When the fixing assembly is connected to the outer fire cover 30, the first ring platform 310 is in contact with the convex edge 2023, and the second ring platform 311 is separated from the receiving portion 2022. In this way, the contact area between the fixing assembly and the outer fire cover 30 can be reduced, the heat transfer between the two can be reduced, and the heat waste can be reduced.

[0149] Preferably, Fig.12 As shown, in this embodiment, a turbulence plate 204 is arranged at the bottom of the fixed component, and the turbulence plate 204 is arranged to be spaced apart from the bottom of the combustion plate 20. A plurality of holes are evenly distributed on the turbulence plate 204. After the gas flow passes through the holes on the turbulence plate 204, it will become relatively gentle, stable and more uniform.

[0150] A gap is provided between the edge of the turbulent plate 204 and the lower part of the fixing assembly to form an auxiliary air flow channel 205 .

[0151] Furthermore, the auxiliary airflow channel 205 is an arc-shaped gap arranged along the edge of the turbulent plate 204, and the number thereof is at least 2, and the gas in the inner ring airflow channel 701 reaches the combustion plate 20 through the turbulent plate 204 and the auxiliary airflow channel 205. Preferably, the plurality of auxiliary airflow channels 205 are evenly distributed along the edge of the turbulent plate 204 to prevent the situation where the unilateral airflow velocity is too large, which is conducive to the stability of the airflow.

[0152] An auxiliary airflow channel 205 is formed between the edge of the turbulence plate 204 and the side wall of the fixed component. The gas can enter the combustion plate 20 not only through the holes on the turbulence plate 204, but also through the auxiliary airflow channel 205. The arc-shaped auxiliary airflow channel 205 can form a strip airflow with the same shape as the auxiliary airflow channel 205. Compared with simply passing through the holes on the turbulence plate 204, the technical solution of this embodiment can pass more gas per unit time, and the strip airflow rises along the side wall of the fixed component, which can drive the internal airflow flow and promote the flow and uniform distribution of the gas, so that the fixed component promotes the full combustion of the gas on the basis of the fixed burner, especially helps to improve the combustion efficiency of the gas stove under the condition of low gas pressure.

[0153] The turbulence plate 204 and the flange 2023 are detachably connected or integrally formed, and a gap is set between the turbulence plate 204 and the flange 2023 to form an auxiliary airflow channel 205. For ease of installation, when the turbulence plate 204 and the flange 2023 are detachably connected, the turbulence plate 204 can be selectively set above or below the flange 2023.

[0154] Furthermore, a connecting ear plate 2023-a is provided on the convex edge 2023, an outwardly protruding connecting wall 2041 corresponding to the connecting ear plate 2023-a is provided on the turbulent plate 204, a screw column is provided at a corresponding position on the outer fire cover 30, the connecting ear plate 2023-a, the connecting wall 2041 and the screw column are connected by screws, and the auxiliary airflow channel 205 is arranged between two adjacent fasteners.

[0155] Furthermore, the turbulent plate 204 and the fixing assembly can be separately arranged, and the turbulent plate 204 is provided with a connecting wall 2041, which matches the convex edge 2023 and the connecting ear plate 2023-a. The turbulent plate 204 is arranged in the fixing assembly, and its connecting wall 2041 is arranged on the connecting ear plate 2023-a, and screw holes are also arranged on the connecting wall 2041, and the screws pass through the connecting wall 2041, the connecting ear plate 2023-a and the screw column in sequence to form a fixation. Alternatively, the turbulent plate 204 is arranged between the outer fire cover 30 and the fixing assembly, and the connecting wall 2041 is arranged on the screw column, and the connecting ear plate 2023-a covers the connecting wall 2041, and the screws pass through the connecting ear plate 2023-a, the connecting wall 2041 and the screw column in sequence to form a fixation. Alternatively, the turbulent plate 204 can also be integrally formed with the fixing assembly.

[0156] The burner provided in this embodiment is provided with an auxiliary airflow channel 205 between the edge of the turbulence plate 204 and the bottom of the fixed component. The gas can not only enter the combustion plate 20 through the holes on the turbulence plate 204, but also enter the combustion plate 20 through the auxiliary airflow channel 205, forming a strip airflow to promote the flow and uniform distribution of the gas, so that the fixed component can achieve full combustion of the gas on the basis of the fixed burner.

[0157] This embodiment provides a burner, and a gasket 203 is provided between the combustion plate 20 and the receiving portion 2022 to reduce the heat transfer between the combustion plate 20 and the fixed component, so that more heat is transferred to the upper pot, thereby improving the utilization rate of the combustion heat.

[0158] In the burner provided in this embodiment, when the fixed component is connected to the outer fire cover 30, the second ring platform 311 and the receiving portion 2022 are separated from each other, thereby reducing the contact area between the fixed component and the outer fire cover 30, reducing heat transfer between the two, and reducing heat waste.

[0159] Embodiment 3

[0160] like Figure 1 , Figure 6 , Figures 14 to 17 As shown, in this embodiment, the installation structure of the high-transparency plate 10 in the first embodiment is further introduced.

[0161] The outer periphery of the high-transparency plate 10 is provided with a mounting shell 100 for supporting the high-transparency plate 10, and the mounting shell 100 is connected to the top wall of the combustion component through a columnar connecting component 100-a. In this embodiment, the mounting shell 100 is the fixed structure described in the first embodiment.

[0162] When cooking, users may inevitably encounter unexpected situations such as overflowing the pot, which may cause soup to overflow. In order to prevent soup or other debris from falling on the combustion plate 20 and affecting the combustion effect, a protective component is provided above the combustion plate 20 in this embodiment. In order to ensure that the gas can be burned as fully as possible and to facilitate the discharge of the exhaust gas generated by the combustion, the protective components are arranged on the combustion plate 20 at intervals to form an exhaust channel between the two, and at the same time, the high-temperature exhaust gas can be properly gathered in the exhaust channel, so that the heat of the high-temperature exhaust gas can be properly utilized instead of being directly discharged to cause heat loss.

[0163] Specifically, the protection component includes a highly transparent plate 10 that allows at least part of the infrared rays to pass through and a mounting shell 100 for fixing the highly transparent plate 10. The highly transparent plate 10 is installed inside the mounting shell 100. There is a preset distance between the infrared combustion component and the highly transparent plate 10. The preset distance is greater than 1 mm, preferably 5 - 10 mm. If this dimension is too small, the resistance of the combustion plate 20 will be too large, resulting in abnormal air flow, insufficient combustion, and inability to emit infrared rays. If the dimension is too large, it is easy to cause attenuation of infrared energy. Further, the minimum exhaust gap is formed between the highly transparent plate 10 and the outer edge of the outer fire cover 30 and is greater than 2 mm, preferably 5 - 15 mm.

[0164] Further, the mounting shell 100 includes an upper pressing plate 101 and a supporting plate 102 that are connected to each other. The supporting plate 102 is sleeved inside the upper pressing plate 101. The bottom edge of the supporting plate 102 abuts against the bottom edge of the upper pressing plate 101. At least one fixing clip 1015 that bends towards the inside of the mounting shell 100 is provided at the bottom of the upper pressing plate 101. The fixing clip 1015 confines the bottom edge of the supporting plate 102 between the fixing clip 1015 and the bottom edge of the upper pressing plate 101, fixing the supporting plate 102 and the upper pressing plate 101 to each other.

[0165] Further, as Fig.16 shown, the upper pressing plate 101 is respectively provided with from the inside to the outside:

[0166] A stopping portion 1011 with an inner edge inclined downward. The inner diameter of the stopping portion 1011 is smaller than the diameter of the highly transparent plate 10. The bottom of the inner edge of the stopping portion 1011 abuts against the highly transparent plate 10;

[0167] A transition portion 1012 arranged along the horizontal direction;

[0168] A shielding portion 1013 with an outer edge inclined downward;

[0169] A side plate 1014 formed by vertically extending downward from the outer edge of the shielding portion 1013. The fixing clip 1015 is provided at the lower edge of the side plate 1014.

[0170] The stopping portion 1011 can form a fixed relationship with the highly transparent plate 10. The inner edge of the stopping portion 1011 abuts against the upper surface of the highly transparent plate 10, restricting the position of the highly transparent plate 10 in the vertical direction. At the same time, since the inner edge of the stopping portion 1011 is inclined downward, when there is dripping vegetable soup on the highly transparent plate 10, it will be blocked by the inner edge of the stopping portion 1011 and will not penetrate into the inside of the upper pressing plate 101 and thus pollute the inside of the mounting shell 100; the outer edge of the shielding portion 1013 is inclined downward, causing the liquid dripping here to flow downward along the shielding portion 1013 and drip onto the stove top, without polluting the internal structure.

[0171] Further, as Fig.17As shown, the support plate 102 is provided with, from the inside to the outside,

[0172] The supporting groove 1024 is used to receive the high-transparent plate 10, and includes an annular supporting plate and an inner peripheral wall arranged along the horizontal direction, and the inner diameter of the supporting plate is smaller than the diameter of the high-transparent plate 10;

[0173] The outer edge of the outer ring wall 1023 is tilted downward.

[0174] Furthermore, the inclination angle of the outer annular wall 1023 is greater than that of the shielding portion 1013, so that a wedge-shaped cavity is formed between the outer annular wall 1023, the side plate 1014 and the shielding portion 1013. The thermal conductivity of the air is poor, which can reduce the heat transfer between the upper pressure plate 101 and the support plate 102 and reduce heat waste. On the other hand, it can also prevent the upper pressure plate 101 and the support plate 102 from rusting and becoming difficult to separate due to long-term use.

[0175] Furthermore, the thickness of the high-transmittance plate 10 is greater than the height of the inner wall of the supporting groove 1024 , so that the stop portion 1011 and the transition portion 1012 are isolated from the support plate 102 , further reducing the heat transfer between the upper pressure plate 101 and the support plate 102 .

[0176] Preferably, the inner diameter of the inner wall of the supporting groove 1024 is slightly larger than the diameter of the high-transparent plate 10. Due to the thermal expansion and contraction phenomenon, the high-transparent plate 10 and the supporting plate 102 will expand under the action of high temperature when the user uses the gas stove, so this space is reserved to prevent the protective component from being damaged by expansion when thermal expansion occurs.

[0177] More preferably, a gasket is provided between the supporting groove 1024 and the high-transparent plate 10. Specifically, the gasket is arranged between the side wall of the high-transparent plate 10 and the inner wall of the supporting groove 1024, and / or between the bottom edge of the high-transparent plate 10 and the support plate. Preferably, the gasket is made of a heat-insulating material to reduce heat transfer between the high-transparent plate 10 and the supporting groove 1024 and reduce heat waste, and / or is made of an elastic material to prevent relative movement and collision between the high-transparent plate 10 and the supporting groove 1024.

[0178] Furthermore, a first through hole 1015-a is provided on at least one fixing clamp 1015, and a second through hole 1023-a is provided on the outer ring wall 1023 of the support plate 102 at a position corresponding to the first through hole 1015-a. The fastener is passed through the first through hole 1015-a and the second through hole 1023-a to tightly connect the upper pressure plate 101 and the support plate 102.

[0179] In this embodiment, a protective component is arranged above the infrared combustion component to prevent dripping or overflowing soup and other debris from falling on the infrared combustion component. The protective component is composed of a high-transparent plate and a mounting shell 100. The mounting shell 100 can protect the high-transparent plate inside it to prevent the high-transparent plate from falling from any direction, which is safe and reliable.

[0180] The mounting shell 100 provided in this embodiment includes an upper pressing plate 101 and a supporting plate 102 connected to each other, wherein the supporting plate 102 is sleeved in the upper pressing plate 101, and at least one fixing clip 1015 bent toward the through hole is provided at the bottom of the upper pressing plate 101, and the bottom edge of the supporting plate 102 is limited between the fixing clip 1015 and the bottom edge of the upper pressing plate 101, so that the supporting plate 102 and the upper pressing plate 101 are fixed to each other. On the one hand, the structure of the protection component is compact and reliable, and it is difficult to open easily, thereby improving stability; on the other hand, the protection component can be used as a module, which is convenient for production and processing, as well as later maintenance and replacement.

[0181] The upper pressing plate 101 of the installation shell 100 provided in this embodiment is provided with a shielding portion 1013 with an outer edge tilted downward, which is conducive to the dripping soup or other impurities sliding downward, preventing them from remaining and solidifying on the installation shell 100 and making it difficult to clean.

[0182] The protection assembly of this embodiment is connected to the outer fire cover 30 through the connecting assembly 100-a. Figure 6 and Fig.17 As shown, the connection assembly 100-a includes at least one pair of fixing pins 1021 arranged on the bottom surface of the installation shell 100 of the protection assembly, and legs arranged on the upper surface of the outer fire cover 30 at positions corresponding to the fixing pins 1021 and connected thereto, and the fixing pins 1021 and the legs cooperate with each other to rotationally limit and / or radially limit the installation shell 100. Preferably, the connection assembly 100-a is evenly distributed on the bottom surface of the installation shell 100 of the protection assembly, so that the installation of the protection assembly is more balanced and stable.

[0183] In this embodiment, the fixing pin 1021 and the supporting leg are respectively the first fixing pin 1021 and the first supporting leg 3011 , and the first fixing pin 1021 and the first supporting leg 3011 cooperate with each other to rotationally limit the mounting shell 100 and radially limit the mounting shell 100 .

[0184] Further, the first fixing pin 1021 includes a first fixing column 1021-c whose fixing end is connected to the bottom surface of the mounting shell, the first leg 3011 includes a first slot 3011-c with an upper opening, the shape of the first fixing column 1021-c matches the shape of the first slot 3011-c, the first fixing column 1021-c is embedded in the first slot 3011-c for fixing, and the mounting shell 100 is rotationally limited and radially limited. Preferably, at this time, there is a gap between the top of the first fixing column 1021-c and the bottom of the first slot 3011-c, which can reduce the waste caused by the transfer of heat on the one hand, and prevent rust from being generated due to long-term use and difficult to separate on the other hand.

[0185] Specifically, the first leg 3011 includes a first connecting plate 3011-a having a fixed end connected to the top of the outer fire cover 30. Along the circumferential direction of the top of the outer fire cover 30, the left and right sides of the first connecting plate 3011-a are respectively provided with slot side walls 3011-d extending toward the inside of the outer fire cover 30. The height of the slot side wall 3011-d is smaller than that of the first connecting plate 3011-a. The two slot side walls and the top of the outer fire cover 30 enclose a first slot 3011-c with an upper opening.

[0186] Preferably, the width of the top end of the first fixing column 1021-c gradually decreases in the direction away from the mounting shell 100, which, on the one hand, provides a guiding effect when the first fixing column 1021-c is inserted into the slot, and on the other hand, facilitates the insertion of the first fixing column.

[0187] Along the circumferential direction of the bottom surface of the mounting shell 100, the left and right sides of the first fixing column 1021-c are each connected with a side support column 1021-b whose fixed end is connected to the bottom surface of the mounting shell 100, so as to enhance the strength of the first fixing column 1021-c. Furthermore, the length of the first fixing column 1021-c is greater than that of the side support column 1021-b.

[0188] A first stopper 1021-a extending horizontally toward the outside of the mounting shell 100 is provided at the fixed ends of the first fixing column 1021-c and the side supporting column 1021-b. When the protective assembly and the external fire cover 30 are in a connected state, the free end of the first fixing column 1021-c is embedded in the first slot 3011-c, and the top end of the first connecting plate 3011-a is against the first stopper 1021-a.

[0189] Preferably, the sum of the heights of the first connecting plate 3011-a and the first baffle 1021-a is greater than the sum of the heights of the side support column 1021-b and the slot side wall 3011-d. In this way, when the protective assembly and the external fire cover 30 are in a connected state, there is a gap between the end of the side support column 1021-b and the free end of the slot side wall 3011-d. On the one hand, it can reduce the waste caused by heat transfer, and on the other hand, it can prevent rust from occurring due to long-term use and making it difficult to separate.

[0190] Furthermore, a first fixing hole 1021 - d and a second fixing hole 3011 - b are respectively provided at corresponding positions on the first fixing pin 1021 and the first leg 3011 , and a fastener is passed through the first fixing hole 1021 - d and the second fixing hole 3011 - b for fastening;

[0191] Preferably, the lower edge of the first fixing hole 1021-d does not exceed the lower edge of the side support column 1021-b, and the lower edge of the second fixing hole 3011-b is not lower than the upper edge of the side wall of the slot. This can reduce the risk of the first fixing column 1021-c being broken when subjected to rotational force.

[0192] In this embodiment, the fire holes 3084 are arranged on the outer edge of the combustion component 300 and communicate with the annular cavity 300-a of the combustion component 300. The fire holes 3084 are arranged at intervals along the circumference of the combustion component 300, and are arranged in two circles arranged at intervals along the axial direction of the combustion component 300; the fire holes 3084 located at the top are inclined upward in the direction away from the axis of the combustion component 300, and communicate with the outside of the annular cavity 300-a; the fire holes 3084 located at the bottom are first extended upward in the direction away from the axis of the combustion component 300, and then extended downward in the direction to communicate with the outside of the annular cavity 300-a.

[0193] Preferably, in this embodiment, at least the fire outlet hole 3084 located above and corresponding to the connecting assembly 100 - a is configured as a stepped hole with an increasing aperture in a direction away from the axis of the combustion component 300 .

[0194] In this embodiment, by setting the fire hole 3084 corresponding to the connecting component 100-a as a stepped hole with an increasing aperture in the direction away from the axis of the burning component 300, the spray distance of the flame of this fire hole 3084 can be increased, and the flame burning the connecting component 100-a can be reduced or avoided.

[0195] Preferably, the aperture of the portion of the fire hole 3084 located below and tilted upward in the direction away from the axis of the burning component 300 is smaller than the aperture of the portion extending downward in an inclined manner; preferably, the inclination angle of the portion of the fire hole 3084 located below and tilted upward in the direction away from the axis of the burning component 300 is greater than the inclination angle of the fire hole 3084 located above and tilted upward in the direction away from the axis of the burning component 300.

[0196] It also includes a secondary air channel, which is arranged on the combustion component 300 and penetrates the combustion component 300 in a vertical direction, the air inlet of the secondary air channel is connected to the outside, and the air outlet is arranged toward the inner fire cover 200; preferably, the secondary air channel includes a plurality of secondary air channels arranged at intervals around the inner fire cover 200.

[0197] Embodiment 4

[0198] like Figures 1 to 17 As shown, in this embodiment, an ignition structure for igniting the burner in the above-mentioned embodiments 1 to 3 is specifically introduced.

[0199] like Figure 2 As shown, the burner includes a burner head 70, which defines an airflow channel, is connected to the ejector 60 at the bottom, and is provided with a combustion component 300 at the top. The combustion component 300 is provided with a combustion plate 20 on the inner periphery and a fire outlet hole 3084 on the outer edge. The combustion component 300 is used to guide the gas so that the gas flows to the fire outlet hole 3084 and the combustion plate 20.

[0200] Specifically, the airflow channel includes an inner ring airflow channel 701 and an outer ring airflow channel 702 arranged around the inner ring airflow channel 701; the inner ring airflow channel 701 is used to supply air to the combustion plate 20, and the outer ring airflow channel 702 is used to supply air to the annular cavity 300-a of the combustion component 300.

[0201] The ignition structure includes an ignition portion 305 and an ignition needle 90 .

[0202] The ignition part 305 includes a fire transfer channel 3050 , the middle part of which is connected to the air flow channel, a first end of which corresponds to the combustion plate 20 , and a second end of which is connected to the fire outlet hole 3084 .

[0203] Specifically, the ignition portion 305 includes a fire transfer channel 3050, through which the gas is transferred to the outer edge of the combustion plate 20 and the combustion component 300 respectively; the fire transfer channel 3050 includes a second end arranged at the outer edge of the combustion component 300 and a first end arranged close to the combustion plate 20. After the gas reaches the second end through the fire transfer channel 3050, it merges with the gas in the fire outlet 3084. When the ignition device ignites, the flame is transferred from the first end of the fire transfer channel 3050 to the combustion plate 20, and the second end of the fire transfer channel 3050 ignites the fire outlet 3084 arranged around the outer edge.

[0204] The middle portion of the fire transmission channel 3050 is connected to the air flow channel through the gas channel.

[0205] like Figure 2 and Figure 4 As shown, in this embodiment, the gas channel includes a first cavity 3055, and the first cavity 3055 is located below the fire transfer channel 3050. A gas transfer structure is arranged between the first cavity 3055 and the fire transfer channel 3050. The first cavity 3055 is connected to the inner cavity of the fire transfer channel 3050 through the gas transfer structure. After the gas enters the first cavity 3055 through the air flow channel, it is transferred to the fire outlet hole 3084 on the outer edge of the combustion plate 20 and the combustion component 300 through the fire transfer channel 3050.

[0206] Specifically, in the present embodiment, the gas reaches the combustion plate 20 through the inner ring airflow channel 701, and reaches the outer edge of the combustion component 300 through the outer ring airflow channel 702; and before the gas reaches the outer edge of the combustion component 300 or the combustion plate 20, part of the gas is diverted into the first cavity 3055, and the gas in the first cavity 3055 is diverted to the outer edge of the combustion component 300 and the combustion plate 20 through the fire transfer channel 3050, and is mixed with the gas that reaches the combustion plate 20 through the inner ring airflow channel 701 and the gas that reaches the outer edge of the combustion component 300 through the outer ring airflow channel 702, so as to improve the ignition efficiency when the ignition device ignites.

[0207] Furthermore, in the process of the gas being diverted from the airflow channel through the ignition portion 305 to the combustion plate 20 and the outer edge of the combustion component 300, the flow rate is adjusted through the first cavity 3055 of the ignition portion 305, the fire transfer channel 3050, and the gas transfer structure between the first cavity 3055 and the fire transfer channel 3050, thereby further improving the ignition stability of the ignition device. When the ignition device of the burner ignites, the gas with adjusted flow rate is ignited, and the flame is transferred to the combustion plate 20 and the outer edge of the combustion component 300.

[0208] Furthermore, the fire transmission channel 3050 includes a first end and a second end, wherein the first end is arranged opposite to the upper edge of the combustion plate 20, the first end is at least partially higher than the upper end of the combustion plate 20, and the gas flowing to the combustion plate 20 through the first end can fully merge with the gas in the combustion plate 20, thereby improving the efficiency of the ignition device to ignite the combustion plate 20; the second end is arranged on the outer edge of the combustion component 300, and when the gas flows out through the second end, it merges with the gas in the fire outlet 3084 on the combustion component 300, thereby improving the efficiency of the ignition device to ignite the combustion component 300. Generally speaking, the caliber of the second end is larger than the caliber of the fire outlet 3084, and the flame of the second end extends from the fire outlet 3084 on both sides of the second end to the outer edge of the combustion component 300.

[0209] As a specific implementation of this embodiment, after the outer fire cover 30 and the fire cover seat 40 are installed in place, the fire cover seat 40 serves as the bottom wall of the first cavity 3055 so that the first cavity 3055 forms a closed cavity, and the gas enters the first cavity 3055 through the through hole or through channel 315 set on the surrounding wall of the first cavity 3055. Furthermore, the first cavity 3055 is formed by the upward depression of the lower end of the outer fire cover 30 and the fire cover seat 40 which are installed in cooperation. The first cavity 3055 is rectangular as a whole and is located below the fire transfer channel 3050. The top of the first cavity 3055 is connected to the fire transfer channel 3050 through an air transfer structure. The first cavity 3055 can be provided with a bottom, or when the outer fire cover 30 and the fire cover seat 40 are installed in place, the first cavity 3055 and the upper surface of the fire cover seat 40 can be cooperated to achieve sealing. At this time, the fire cover seat 40 serves as the bottom of the first cavity 3055 to prevent leakage into the first cavity 3055, and to prevent the inner ring airflow from mixing with the outer ring airflow, thereby ensuring that the airflow entering the first cavity 3055 all enters the fire transfer channel 3050.

[0210] In this embodiment, the first cavity 3055 can be connected to the inner ring airflow channel 701 and the outer ring airflow channel 702 at the same time, or the first cavity 3055 can be connected to either the inner ring airflow channel 701 or the outer ring airflow channel 702.

[0211] Preferably, the first cavity 3055 is in communication with the inner ring airflow channel 701 .

[0212] Specifically, the first cavity 3055 is connected from the lower end of the combustion plate 20 to the inner ring airflow channel 701 that provides fuel gas to the combustion plate 20. Before the inner ring airflow reaches the combustion plate 20, part of the fuel gas is diverted to the first cavity 3055. After the inner ring airflow reaches the combustion plate 20, part of the fuel gas is blocked by the combustion plate 20 and enters the first cavity 3055.

[0213] In this embodiment, the inner circumference of the top wall of the combustion component 300 is bent and extended downward in a direction close to its axis to form a connecting portion 317-a. The connecting portion 317-a is annular and coaxial with the combustion component 300. The lower end of the connecting portion 317-a is vertically inserted into the top side wall of the inner ring airflow channel 701. The combustion plate 20 is buckled on the top of the connecting portion 317-a. The combustion plate 20 extends radially to the edge of the upper end of the connecting portion 317-a. The first cavity 3055 is connected to the connecting portion 317-a through the through channel 315, thereby achieving communication with the inner ring airflow channel 701.

[0214] Specifically, the top wall of the combustion component 300 forms a connection portion 317-a below the combustion plate 20, and the inner diameter of the connection portion 317-a gradually increases in the direction close to the combustion plate 20. The connection portion 317-a is trumpet-shaped as a whole. When the gas passes through the trumpet-shaped connection portion 317-a and reaches the combustion plate 20, the flow rate gradually decreases, which is conducive to the combustion of the gas. Preferably, the combustion plate 20 is installed on the top of the connection portion 317-a, and the inner annular airflow gradually reduces the flow rate before reaching the combustion plate 20, thereby improving the combustion efficiency of the combustion plate 20.

[0215] In this embodiment, the first cavity 3055 is spaced apart from one end of the axis of the combustion component 300 and the connecting portion 317-a, and the first cavity 3055 is connected to the side wall of the inner ring airflow channel 701 through the through channel 315, and the end of the through channel 315 connected to the inner ring airflow channel 701 is the air inlet end, and the end connected to the first cavity 3055 is the air outlet end.

[0216] Furthermore, the air inlet end is arranged below the combustion plate 20, at the part with a larger inner diameter of the connection part 317-a. In the process of the inner ring airflow delivering the fuel gas into the combustion plate 20, part of the fuel gas blocked by the combustion plate 20 enters the first cavity 3055 through the air inlet end of the through channel 315. It should be noted that after the inner ring airflow is blocked by the combustion plate 20, a blocking force opposite to the air inlet direction of the inner ring airflow is formed. Due to the trumpet-shaped arrangement of the connection part 317-a, and the combustion plate 20 is arranged at the largest opening, and the air inlet end is arranged at the part with a larger inner diameter of the connection part 317-a, at this time, the air inlet end is arranged opposite to the lower end of the combustion plate 20, and part of the airflow blocked by the combustion plate 20 enters the through channel 315 under the action of the blocking force. In addition, due to the trumpet-shaped arrangement of the connection part 317-a, the airflow subjected to the blocking force will act on the peripheral wall of the connection part 317-a with a larger inner diameter, and will not affect the inner ring airflow supplied subsequently.

[0217] Furthermore, the air inlet end of the through channel 315 on the peripheral wall of the connecting portion 317-a is at a higher height than the air outlet end on the cavity wall of the first cavity 3055, that is, the through channel 315 as a whole is tilted between the air inlet end and the air outlet end. After the inner annular airflow is blocked by the combustion plate 20, the tilted through channel 315 is conducive to reducing the flow rate of the gas when it enters the first cavity 3055.

[0218] Furthermore, a drainage structure is formed on the cavity wall of the first cavity 3055 near the gas outlet end, and the drainage structure further reduces the flow rate of the gas entering the first cavity 3055 and adjusts the stability of the flow rate of the gas after entering the first cavity 3055.

[0219] Furthermore, the gas transmission structure includes an air inlet and an air outlet connecting the first cavity 3055 and the fire transmission channel 3050. The air inlet is arranged at the top of the first cavity 3055, and the air outlet is arranged at the bottom of the fire transmission channel 3050. After the gas enters the first cavity 3055 through the inclined through-channel 315, it will not directly enter the gas transmission channel. After the gas fills the first cavity 3055, it flows from the air inlet to the air outlet. In this process, the flow rate of the gas is gradually reduced, thereby improving the ignition efficiency and ignition stability of the ignition device.

[0220] Furthermore, the cross-sectional area of ​​the air inlet is larger than the cross-sectional area of ​​the air outlet; when the gas in the first cavity 3055 passes through the gas transmission structure, the gas transmission structure adjusts the amount of gas entering the fire transmission channel 3050, and adjusts the flow rate of the gas by controlling the rate at which the gas fills the gas channel, thereby ensuring that the flow rate of the gas at the second end and the second end of the fire transmission channel 3050 is suitable for ignition stability or fire transmission stability.

[0221] Furthermore, the gas transmission structure includes a first gas transmission channel 3053 and a second gas transmission channel 3054, and the cross-sectional area of ​​the first gas transmission channel 3053 is larger than the cross-sectional area of ​​the second gas transmission channel 3054; when the gas passes through the first gas transmission channel 3053 and enters the second gas transmission channel 3054, the flow rate will be further adjusted, thereby improving the ignition stability of the ignition device.

[0222] As a specific implementation of the present embodiment, the first air transmission channel 3053 is a hollow cylindrical shape, the bottom of the first air transmission channel 3053 is opened on the top wall of the cavity, the first air transmission channel 3053 is vertically arranged between the first cavity 3055 and the second air transmission channel 3054, the airflow entering the first cavity 3055 passes through the first air transmission channel 3053 and then passes through the second air transmission channel 3054 to fill the fire transmission channel 3050; the second air transmission channel 3054 is arranged at the top of the first air transmission channel 3053, the second air transmission channel 3054 is a hollow cylindrical shape as a whole, and the cross-section of the second air transmission channel 3054 is smaller than the cross-section of the first air transmission channel 3053; when the gas in the first cavity 3055 enters the fire transmission channel 3050, the flow direction and flow rate are adjusted in the process of passing through the first air transmission channel 3053 and the second air transmission channel 3054, so as to ensure that the gas enters the fire transmission channel 3050 and maintains a stable flow rate after filling the fire transmission channel 3050.

[0223] Furthermore, the first gas transmission channel 3053 is connected to at least one second gas transmission channel 3054 , and the second gas transmission channel 3054 is connected to the fire transmission channel 3050 at multiple locations through the first gas transmission channel 3053 arranged at the lower end of the fire transmission channel 3050 , further improving the efficiency of gas filling the fire transmission channel 3050 .

[0224] Furthermore, the cross-sectional area of ​​the first air transfer channel 3053 near the second air transfer channel 3054 gradually shrinks to form an air transfer surface. The second air transfer channel 3054 is arranged on the air transfer surface to achieve communication with the fire transfer channel 3050. When the airflow in the first air transfer channel 3053 enters the second air transfer channel 3054 through the air transfer surface, the airflow is buffered by the air transfer surface, further ensuring the stability of the gas flow rate after entering the fire transfer channel 3050, thereby improving the ignition stability of the ignition device.

[0225] Furthermore, the position of the air outlet of the second air transmission channel 3054 is adjusted in direction according to the position of the first air transmission channel 3053 between the first cavity 3055 and the fire transmission channel 3050. For example, if the first air transmission channel 3053 is set at a position close to the first end, then at least one second air transmission channel 3054 is inclined on the first air transmission channel 3053 toward the second end to ensure that the gas evenly fills the fire transmission channel 3050.

[0226] Furthermore, the ignition portion 305 is provided with a plurality of gas transfer structures, and the plurality of gas transfer structures are arranged between the fire transfer channel 3050 and the cavity along the radial direction of the combustion component 300, so as to ensure that the fuel gas enters the fire transfer channel 3050 from the first cavity 3055 through the gas transfer structure, and is evenly transferred to each section of the fire transfer channel 3050, thereby increasing the rate at which the airflow fills the fire transfer channel 3050 and improving the ignition efficiency of the burner.

[0227] As an implementation mode of this embodiment, in this implementation mode, the fire transfer channel 3050 is inclined, and the end close to the inner side of the combustion component 300 is higher than the end outside the combustion component 300; since the fire transfer channel 3050 is inclined, the distance between the fire transfer channel 3050 and the cavity gradually decreases from the inner side to the outer side of the combustion component 300. At this time, the height of the multiple first air transfer channels 3053 located between the fire transfer channel 3050 and the cavity gradually decreases, and the height difference formed between the multiple first air transfer channels 3053 is adapted to the inclination angle of the fire transfer channel 3050, thereby further improving the efficiency of the ignition part 305 in transmitting the airflow.

[0228] As a specific implementation of this embodiment, three gas transfer structures are included between the fire transfer channel 3050 and the first cavity 3055;

[0229] The first gas transmission structure is close to one side of the combustion plate 20. In the first gas transmission structure, the second gas transmission channel 3054 is inclined from the first gas transmission channel 3053 to the second end.

[0230] The third gas transmission structure is close to one side of the outer edge of the combustion component 300, and the third gas transmission structure includes two second gas transmission channels 3054. One second gas transmission channel 3054 is vertically arranged between the fire transmission channel 3050 and the first gas transmission channel 3053, and the other second gas transmission channel 3054 is inclined from the first gas transmission channel 3053 to the second end, so as to further increase the rate at which the gas fills the fire transmission channel 3050.

[0231] The second air transmission structure is located between the first air transmission structure and the third air transmission structure, and the second air transmission channel 3054 is vertically arranged.

[0232] A method for transmitting gas: a combustion component 300 cooperates with a fire cover seat 40 to form an annular cavity 300-a, a combustion plate 20 cooperates with the combustion component 300, and a connecting portion 317-a is formed below the combustion plate 20. The gas reaches the combustion plate 20 from the connecting portion 317-a and reaches the outer edge of the combustion component 300 from the annular cavity 300-a. Before the gas reaches the combustion plate 20 and the outer edge of the combustion component 300 through the connecting portion 317-a and the annular cavity 300-a, part of the gas is transferred to the combustion plate 20. The gas is diverted to the ignition part 305, and the flow speed of the gas is gradually slowed down when passing through the first cavity 3055, the gas transfer structure and the ignition channel, and is respectively transferred to the outer edges of the combustion plate 20 and the combustion component 300 by the fire transfer channel 3050, and mixed with the gas on the outer edges of the combustion plate 20 and the combustion component 300 reached by the inner annular airflow and the outer annular airflow. When the ignition device of the burner is ignited, the flame ignites the gas on the outer edges of the combustion plate 20 and the combustion component 300 through the fire transfer channel 3050.

[0233] like Figures 6 to 8As shown, in this embodiment, the first end of the fire transfer channel 3050 is provided with an ignition groove 3051 penetrating the side wall of the fire transfer channel 3050, and a through hole communicating with the air flow channel is provided in and / or around the ignition groove 3051; the ignition end of the ignition needle 90 corresponds to the ignition groove 3051. By setting the ignition structure including the fire transfer channel 3050, the ignition groove 3051 and the through hole are provided at the first end of the fire transfer channel 3050, and the ignition end of the ignition needle 90 corresponds to the ignition groove 3051, the first end of the fire transfer channel 3050 can be ignited by electric sparks to form a flame during the ignition process, and the combustion plate 20 is ignited by the flame ejected to the combustion plate 20, so that the ignition efficiency of the combustion plate 20 can be improved, and at the same time, the fire transfer efficiency between the combustion plate 20 and the fire outlet 3084 can be improved.

[0234] like Figure 7 and Figure 8 As shown, the ignition groove 3051 is U-shaped. The ignition groove 3051 is arranged at the end of the first end of the fire transmission channel 3050, and the notch of the ignition groove 3051 is arranged on the end surface of the first end of the fire transmission channel 3050; the ignition groove 3051 extends along the circumference of the combustion component 300 in the length direction, and the notch of the ignition groove 3051 corresponds to the upper edge of the combustion plate 20. Preferably, at least the upper side of the notch of the ignition groove 3051 is higher than the edge of the combustion plate 20.

[0235] The through hole includes small holes arranged in the ignition groove 3051, and the small holes in the groove include: a first small hole 3051-a, which is arranged on the bottom of the ignition groove 3051; and / or a second small hole 3051-b, which is arranged on the wall of the ignition groove 3051 and is inclined toward the side close to the axis of the combustion component 300 along the direction close to the ignition groove 3051.

[0236] The through hole further includes an ignition hole 3057 disposed around the ignition groove 3051, and the ignition hole 3057 includes a first ignition hole 3057-a and / or a second ignition hole 3057-b, wherein the first ignition hole 3057-a is disposed on the side wall of the first end of the fire transmission channel 3050 corresponding to the ignition needle 90, and the second ignition hole 3057-b is disposed on the peripheral wall of the combustion component 300 opposite to the combustion plate 20, corresponding to the position of the ignition needle 90. Preferably, the first ignition hole 3057-a and the second ignition hole 3057-b are both disposed toward the ignition end of the ignition needle 90.

[0237] Specifically, Figure 7As shown, a first ignition hole 3057-a is opened on the side wall adjacent to the ignition portion 305 and the ignition needle 90, and the ignition end of the ignition needle 90 is arranged opposite to the first ignition hole 3057-a; the ignition portion 305 transfers the fuel gas to the outer edges of the combustion plate 20 and the combustion component 300 respectively through the fire transfer channel 3050, and transfers the fuel gas to the first ignition hole 3057-a through the first ignition channel; when the ignition device ignites, the ignition end of the ignition needle 90 ignites the first ignition hole 3057-a, and the flame is transferred to the outer edges of the combustion plate 20 and the combustion component 300 respectively through the fire transfer channel 3050.

[0238] Furthermore, as a specific implementation of this embodiment, two first ignition holes 3057-a are opened on the side wall adjacent to the ignition portion 305 and the ignition needle 90, and the two first ignition holes 3057-a are arranged in sequence in the axial direction of the combustion component 300, and the discharge end of the ignition needle 90 is arranged between the two first ignition holes 3057-a, so as to increase the gas content at the ignition end and ensure the ignition success rate of the ignition device.

[0239] Furthermore, a gas transfer structure is arranged at the lower end of the fire transfer channel 3050, and the gas transfer structure provides fuel gas to the fire transfer channel 3050 and the first ignition hole 3057-a at least through the gas outlet and the first ignition channel; and the cross-section of the gas outlet of the gas transfer structure is different from the cross-section of the first ignition hole 3057-a, and the gas outlet is inclined toward the first end so that the fuel gas can reach the combustion plate 20 faster, and the first ignition hole 3057-a is arranged on the side wall of the first end of the fire transfer channel 3050, and the height of the first ignition hole 3057-a is lower than the setting height of the first end.

[0240] Furthermore, the first end is connected to the side wall where the first ignition hole 3057-a is located through the ignition groove 3051, and the setting position of the ignition groove 3051 is higher than the setting position of the first ignition hole 3057-a. When the ignition device is ignited, the ignition end of the ignition needle 90 ignites the gas at the first ignition hole 3057-a to form a flame. The flame is transmitted to the ignition channel through the ignition groove 3051, igniting the gas in the ignition channel, and then igniting the outer edge of the combustion plate 20 and the combustion component 300 through the first end and the second end of the ignition channel, thereby realizing the ignition of the burner.

[0241] Furthermore, the through hole also includes a small hole in the groove that is connected to the inside of the ignition groove 3051, and the small hole in the groove includes a second small hole in the groove 3051-b. The lower wall of the ignition groove 3051 is provided with a second small hole in the groove 3051-b; the gas transmission structure provides fuel gas to the second small hole in the groove 3051-b through the second ignition channel, and the fuel gas fills the flame transmission groove 3082 through the second small hole in the groove 3051-b, so that when the ignition device ignites, the flame of the first ignition hole 3057-a is transmitted to the flame transmission channel 3050 through the flame transmission groove 3082 more quickly, thereby improving the flame transmission efficiency of the burner.

[0242] Furthermore, the gas transfer structure includes a first gas transfer channel 3053 and a second gas transfer channel 3054 which are connected in sequence, and the second gas transfer channel 3054 is located at the upper end of the first gas transfer channel 3053, and is connected to the fire transfer channel 3050 through the air outlet; the fuel gas enters the second gas transfer channel 3054, the first ignition channel and the second ignition channel from the first gas transfer channel 3053, and is respectively connected to the fire transfer channel 3050, the first ignition hole 3057-a and the small hole 3051-b in the second groove. After the fuel gas in the first gas transfer channel 3053 is diverted by the second gas transfer channel 3054, the first ignition channel and the second ignition channel, the flow velocity is reduced and the fuel gas is dispersed to multiple positions, thereby improving the ignition stability of the ignition device.

[0243] As a specific implementation of this embodiment, the depth of the ignition groove 3051 on the side close to the ignition needle 90 is deeper than that on the side close to the fire transfer channel 3050; after the gas fills the ignition groove 3051 through the small hole 3051-b in the second groove, the opening on the side close to the ignition needle 90 is larger than the opening on the side of the fire transfer channel 3050, and the gas overflows more toward the ignition needle 90, so that after the ignition needle 90 ignites the first ignition hole 3057-a, the flame can be quickly transferred from the ignition groove 3051 to the fire transfer channel 3050, thereby improving the fire transfer efficiency of the burner. Preferably, the small hole 3051-b in the second groove is inclined along the direction close to the ignition groove 3051 toward the side close to the axis of the combustion component 300, and is inclined from bottom to top toward the side close to the ignition needle 90, so that the gas in the ignition groove 3051 is sprayed toward the ignition end of the ignition needle 90.

[0244] Furthermore, the ignition groove 3051 is at a height close to one end of the combustion plate 20 and higher than the height of the ignition groove 3051 away from the combustion plate 20. When the gas in the small hole 3051-b in the second groove fills the fire transfer groove 3082, the gas will mix with the gas overflowing from the combustion plate 20 as the fire transfer groove 3082 is set higher close to the combustion plate 20, thereby further improving the efficiency of igniting the combustion plate 20.

[0245] Furthermore, the gas transmission structure provides fuel gas to the fire transmission channel 3050 through a plurality of gas outlets, and after ensuring that the fuel gas can fill the fire transmission channel 3050 as quickly as possible, the fuel gas is transmitted to the combustion plate 20 and the outer edge of the combustion component 300 through the first end and the second end respectively; the plurality of gas outlets can be realized by setting a plurality of second gas transmission channels 3054 on a first gas transmission channel 3053, or by setting a plurality of gas transmission structures, which can be flexibly arranged according to the actual distance between the combustion plate 20 and the outer edge of the combustion component 300.

[0246] Preferably, Figure 8 As shown, in this embodiment, the ignition hole 3057 also includes a second ignition hole 3057 - b , and the second ignition hole 3057 - b is arranged on the peripheral wall opposite to the combustion component 300 and the combustion plate 20 , corresponding to the position of the ignition needle 90 .

[0247] Specifically, the second ignition hole 3057-b is arranged on the peripheral wall of the combustion component 300 and the combustion plate 20 on the side of the fire transmission channel 3050 close to the ignition needle 90, and the second ignition hole 3057-b is arranged below the ignition end of the ignition needle 90. The second ignition hole 3057-b extends upwardly and obliquely in the direction close to the axis of the combustion component 300 and corresponds to the ignition end. The second ignition hole 3057-b is used to lead out the gas in the annular cavity 300-a, which can compensate for the gas at the position of the ignition end, increase the gas volume at this position, and be more conducive to ignition.

[0248] The small holes in the groove also include a first small hole in the groove 3051-a, which is arranged on the groove bottom of the ignition groove 3051 and communicates with the annular cavity 300-a of the combustion component 300. The ignition groove 3051 extends downwardly and obliquely in the direction away from the axis of the combustion component 300 in the depth direction; the extension direction of the first small hole in the groove 3051-a is parallel to the depth direction of the ignition groove 3051, and the first small hole in the groove 3051-a is inclined toward the inner side of the fire transmission channel 3050 in the direction close to the axis of the combustion component 300. By providing the first small hole in the groove 3051-a, the flame in the ignition groove 3051 can be sprayed toward the combustion plate 20, so that the flame directly contacts the combustion plate 20, thereby improving the ignition efficiency of the combustion plate 20.

[0249] Preferably, the first end of the fire transfer channel 3050 protrudes from the peripheral wall opposite to the combustion component 300 and the combustion plate 20 and extends toward the combustion plate 20, and the width of the first end of the fire transfer channel 3050 gradually increases in the direction away from the axis of the combustion component 300, and the horizontal projection of the small hole 3051-a in the first groove extends radially along the combustion component 300.

[0250] Specifically, Figure 8As shown, the left and right sides of the first end of the fire transfer channel 3050 extend radially along the outer fire cover 30, the top gradually decreases in width along the extension direction from bottom to top, and the bottom is set as a plane extending radially along the outer fire cover 30.

[0251] The ignition grooves 3051 are arranged on the side walls on the left and right sides of the fire transfer channel 3050, and the two ignition grooves 3051 are on the same circumference. The bottom of the ignition groove 3051 is arc-shaped, and the direction of the small hole 3051-a in the first groove corresponds to the axis of the combustion component 300, so that the entire ignition groove 3051 forms a shape with a wide bottom and a narrow groove mouth. When the fire transfer channel 3050 transfers the flame to the combustion plate 20, the small holes 3051-a in the first groove on the bottom of the two ignition grooves 3051 spray fuel gas, so that the flame in the ignition groove 3051 converges to the center of the first end of the fire transfer channel 3050, so that the flame is more concentratedly transferred to the position of the combustion plate 20, thereby improving the success rate of ignition of the combustion plate 20.

[0252] In this embodiment, the first ignition hole 3057-a and the second slot small hole 3051-b are respectively connected to the inner ring airflow channel 701, specifically, are respectively connected to the first cavity 3055, and the second ignition hole 3057-b and the first slot small hole 3051-a are respectively connected to the outer ring airflow channel 702. The first ignition hole 3057-a and the second ignition hole 3057-b can be set separately or simultaneously; the first slot small hole 3051-a and the second slot small hole 3051-b can be set separately or simultaneously.

[0253] Preferably, in this embodiment, the distance between the first end of the fire transfer channel 3050 above the ignition groove 3051 and the axis of the combustion component 300 is smaller than the distance between the first end of the fire transfer channel 3050 below the ignition groove 3051 and the axis of the combustion component 300 .

[0254] The first end of the fire transfer channel 3050 is longer at the top and shorter at the bottom. On the one hand, it can prevent the flame ejected from the ignition groove 3051 from spreading upward before reaching the position of the combustion plate 20, resulting in reduced fire transfer efficiency or even ignition failure. Extending the upper end of the fire transfer channel 3050 can make the flame more concentrated and transferred to the combustion plate 20; on the other hand, the lower end of the fire transfer channel 3050 is shorter to avoid contact with the outer periphery of the combustion plate 20.

[0255] Furthermore, the ignition method of the burner described in this embodiment is as follows:

[0256] The ignition end of the ignition needle 90 ignites the gas coming out of the ignition hole 3057 into a flame, and the flame ignites the gas overflowing from the ignition groove 3051. Then, as the ignition groove 3051 ignites the fire transfer channel 3050 and the combustion plate 20, the flame in the fire transfer channel 3050 is transferred from the second end to the outer edge of the combustion component 300.

[0257] like Figure 2 and Figure 4 As shown, in this embodiment, when the ignition structure is ignited, the ignition end of the ignition needle 90 ignites the ignition hole 3057, and the flame is transferred to the outer edge of the combustion plate 20 and the combustion component 300 respectively through the fire transfer channel 3050; the outer edge of the combustion component 300 is provided with a fire hole 3084, and the fire hole 3084 provides fuel gas through the outer ring airflow channel 702. The second end of the fire transfer channel 3050 is connected to the fire hole 3084. After the ignition device is ignited, the flame is transferred from the second end to the outer edge of the combustion component 300.

[0258] Further, such as Fig. 9 and Fig.10 As shown, a fire stabilizing hole 3083 is opened below the second end of the fire transfer channel 3050 , and the diameter of the fire stabilizing hole 3083 is smaller than the diameter of the second end of the fire transfer channel 3050 , and the fire stabilizing hole 3083 is opened on the outer edge of the combustion component 300 .

[0259] Furthermore, a thermocouple 80 is provided at the second end of the outer edge of the combustion component 300 and the fire stabilizing hole 3083 . After the ignition structure ignites the burner, the flames at the second end and the fire stabilizing hole 3083 continue to burn the thermocouple 80 .

[0260] It should be noted that the thermocouple 80 is used to determine whether the burner is burning stably after the burner is ignited. The thermocouple 80 is usually installed at the ignition position of the burner. When the burner overflows, if the overflow is too large, the flame burning the thermocouple 80 will be extinguished. After the thermocouple 80 is burned without flame, the solenoid valve will be closed to prevent the burner from overflowing.

[0261] Furthermore, at least two fire stabilizing holes 3083 are arranged circumferentially along the combustion component 300 below the second end of the fire transfer channel 3050, and the thermocouple 80 is arranged opposite to the second end of the fire transfer channel 3050. When the burner is ignited by the ignition device, the fire stabilizing hole 3083 and the flame at the second end burn the thermocouple 80 at the same time.

[0262] Preferably, in this embodiment, a groove 3081 is provided on the outer edge of the combustion component 300 and around the second end of the fire transfer channel 3050; the fire stabilizing holes 3083 are provided below the second end of the fire transfer channel 3050 and are connected to the air flow channel, including a plurality of fire stabilizing holes 3083 arranged at intervals along the circumference of the combustion component 300, and at least some of the fire stabilizing holes 3083 are provided in the groove 3081.

[0263] The thermocouple 80 and the groove 3081 are arranged relative to each other. When the burner is ignited by the ignition structure, the flame of the entire groove 3081 continues to burn the thermocouple 80. Since the groove 3081 is recessed toward the inner wall of the combustion component 300 as a whole, the gas overflowing from the second end and the fire stabilizing hole 3083 mixes more quickly with the gas overflowing from the fire hole 3084 close to the groove 3081, thereby improving the efficiency of the second end in transferring the flame to the fire hole 3084.

[0264] Preferably, Fig.10 As shown, the fire stabilizing holes 3083 include a first fire stabilizing hole 3083 arranged in the groove 3081 and a second fire stabilizing hole 3083 arranged on both sides of the groove 3081. The fire stabilizing holes 3083 are all arranged to be inclined upward in a direction away from the axis of the combustion component 300. The setting of the second fire stabilizing holes 3083 can accelerate the flow of flames to the fire outlet holes 3084 on both sides of the fire transfer channel 3050, thereby improving the ignition efficiency.

[0265] Preferably, the aperture of the first fire stabilizing hole 3083 is larger than the diameter of the second fire stabilizing hole 3083 .

[0266] Preferably, fire transfer grooves 3082 are provided on the left and right sides of the second end of the fire transfer channel 3050, and the fire transfer grooves 3082 are recessed in the direction close to the axis of the combustion component 300, and extend from the two sides of the second end of the fire transfer channel 3050 in the direction away from the fire transfer channel 3050; the groove bottom of the fire transfer channel 3050 is an arc with the middle part recessed in the direction close to the axis of the combustion component 300.

[0267] Specifically, a fire transfer groove 3082 is provided at the outer edge of the combustion component 300; the fire transfer groove 3082 connects the second end of the fire transfer channel 3050 with the fire outlet hole 3084 closest to the second end. When the ignition device ignites, the flame transmitted to the second end of the fire transfer channel 3050 is transmitted to the fire outlet hole 3084 through the fire transfer groove 3082, thereby further improving the fire transfer efficiency of the outer edge of the combustion component 300.

[0268] Furthermore, the outer edge of the combustion component 300 includes two layers of staggered first fire holes 3084-a and second fire holes 3084-b, wherein the first fire hole 3084-a is an upper circle fire hole 3084, and the second fire hole 3084-b is a lower circle fire hole 3084; the fire transfer groove 3082 connects the second end with the second fire hole 3084-b closest to the second end. When the ignition device is ignited, the flame is transferred from the fire transfer groove 3082 to the second fire hole 3084-b. Since the first fire hole 3084-a and the second fire hole 3084-b are staggered on the combustion component 300, the distance between the fire holes 3084 is reduced, which not only improves the combustion intensity of the outer edge of the combustion component 300, but also further improves the flame transfer speed on the outer edge of the combustion component 300.

[0269] Furthermore, after connecting to one side of the second fire hole 3084-b near the second end, the fire transfer groove 3082 continues to extend to the outer edge of the combustion component 300 between the two second fire holes 3084-b, close to the first fire hole 3084-a, and the fire transfer groove 3082 between the two second fire holes 3084-b, the farther away from the second fire hole 3084-b near the second end, the shallower the depth of the fire transfer groove 3082, thereby enhancing the fire transfer efficiency of the second fire hole 3084-b to transfer the flame to the first fire hole 3084-a.

[0270] Furthermore, the ignition method of the burner described in this embodiment is as follows:

[0271] The ignition end of the ignition needle 90 ignites the gas coming out of the ignition hole 3057 into a flame, and the flame ignites the gas overflowing from the ignition groove 3051. Then, as the ignition groove 3051 ignites the fire transfer channel 3050 and the combustion plate 20, the flame in the fire transfer channel 3050 is transferred from the second end to the fire transfer groove 3082. After the flame ignites the second fire hole 3084-b near the second end through the fire transfer groove 3082, it continues to ignite the first fire hole 3084-a near the second fire hole 3084-b along the fire transfer groove 3082, and then the flame is transferred to the entire outer edge of the combustion component 300.

[0272] In this embodiment, the combustion component 300 includes a fire cover seat 40 and an outer fire cover 30 which are interlocked to form an annular cavity 300 - a. The outer fire cover 30 is arranged above the fire cover seat 40, and the ignition part 305 is arranged on the outer fire cover 30.

[0273] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A cooking appliance burner, characterized in that: it includes a burner head (70), an injector (60), and a combustion component (300). One end of the burner head (70) is connected to the combustion component (300), and the other end is connected to the injector (60); the combustion component (300) includes; a burner cap base (40) provided with an outer burner cap (30) thereon; a combustion plate (20) is provided inside the outer burner cap (30); the combustion component (300) and the burner head (70) are detachably connected integrally.

2. The cooking appliance burner according to claim 1, characterized in that: the burner head (70) includes two coaxially arranged inner ring air flow channels (701) and outer ring air flow channels (702), and the inner ring air flow channel (701) and the outer ring air flow channel (702) are respectively detachably connected to the outer burner cap (30) and the burner cap base (40).

3. The cooking appliance burner according to claim 2, characterized in that: the upper surface of the outer burner cap (30) extends from the inner wall of the outer burner cap towards the central axis of the outer burner cap (30) and the direction of the burner head to form a connecting portion (317-a); the connecting portion (317-a) is detachably connected to the inner ring air flow channel (701) of the burner head (70), the bottom of the burner cap base (40) of the burner cap is detachably connected to the outer ring air flow channel (702) of the burner head (70).

4. The cooking appliance burner according to claim 3, characterized in that: the upper surface of the outer burner cap (30) is a first curved surface, the connecting portion (317-a) is a second curved surface, the combustion plate (20) is arranged at the connection of the first curved surface and the second curved surface, the curvature of the first curved surface is less than the curvature of the second curved surface, and the second curved surface is coaxially arranged with the combustion plate (20); the port of the connecting portion (317-a) is connected to the inner ring air flow channel (701) of the burner head (70).

5. The cooking appliance burner according to claim 4, characterized in that: the bottom of the burner cap base includes a first straight section (4121), a second straight section (4122), and a third straight section (4123). The first straight section (4121) abuts against the side wall of the outer burner cap (30), the second straight section (4122) is horizontally arranged relative to the outer burner cap (30), and a bent portion is formed at the connection between the second straight section (4122) and the third straight section (4123). The bent portion is gradually contracted from the connection of the second straight section (4122) and the third straight section (4123) towards the direction of the outer ring air flow channel (702); the port of the bent portion of the third straight section (4123) is detachably connected to the outer ring air flow channel (702).

6. The cooking appliance burner according to claim 2, characterized in that: the burner head (70) is connected to the first injector (601) of the injector (60) to form an inner ring air flow channel (701); The inner ring air flow channel (701) is a cylindrical structure. The inner ring air flow channel (701) includes an inner ring air flow channel side wall (7011) that can be sleeved with the connecting part (317-a). The inner ring air flow channel (701) is used to convey gas to the combustion plate (20).

7. A cooker burner according to claim 3, characterized in that: The burner head (70) is connected to the second ejector (602) of the ejector (60) to form an outer ring air flow channel (702); The outer ring air flow channel (702) is such that the outer ring air flow channel (702) includes an outer ring air flow channel side wall (7021) that can be sleeved with the bottom of the burner cap seat. The outer ring air flow channel (702) is used to convey gas to the outer wall of the outer burner cap (30).

8. A cooker burner according to claim 7, characterized in that: An inclined plane is provided on the outer peripheral wall of the outer ring air flow channel (702) of the burner head (70); the inclined plane is arranged annularly around the central axis of the burner head; and the inclined plane extends obliquely upward from the connection with the second ejector (602) of the outer ring air flow channel (702) to the coaxial plane at the connection of the inner ring air flow channel (701) and the first ejector (602).

9. A cooker burner according to claim 8, characterized in that: The burner head (70) further includes an inner ring nozzle (704) and an outer ring nozzle (705). The inside of the outer ring air flow channel (702) extends spirally from the connection of the second ejector (602) and the outer ring air flow channel (702) to the direction of the outer ring nozzle (705), and extends upward from the bottom around the inner ring air flow channel side wall (7011) to the outer ring nozzle.

10. A cooker burner according to claim 9, characterized in that: The connection position of the outer ring air flow channel (702) of the burner head (70) and the burner cap seat (40) is higher than the connection position of the inner ring air flow channel (702) of the burner head (70) and the connecting part (317-a), and an annular cavity (300-a) is formed between the outer burner cap (30) and the burner cap seat (40). The size of the annular cavity (300-a) gradually shrinks from the first straight section (4121) towards the burner head (70).

Images