stove

Abstract

The present invention provides a stove. The stove includes a stove panel and an energy-concentrating pot rack. The stove panel is provided with a combustion hole and an annular liquid receiving pan is provided corresponding to the combustion hole. The energy-concentrating pot rack includes a first layer plate, a second layer plate, and a third layer plate, each of which is annular, and a plurality of first pot supports and a plurality of second pot supports. The plurality of first pot supports are evenly spaced and arranged in a ring on the first layer plate to support the pot on the energy-concentrating pot rack. The plurality of second pot supports are evenly spaced and arranged in a ring on the third layer plate to support the energy-concentrating pot rack on the liquid receiving pan. The first layer plate includes a plurality of annular sections arranged from the inside to the outside, each section having a different cross-sectional shape. The stove of the present invention facilitates the high-temperature flue gas to increase the velocity and turbulence of the flue gas flow and change the flow direction of the flue gas through the different cross-sectional shapes of each section when passing through the section, thereby improving the heat exchange efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, in particular to a stove. Background Art

[0002] Cookers are categorized as top-inlet, bottom-inlet, and full-inlet depending on how the burners are supplied with air. In top-inlet cookers, the air supply for the burners comes entirely from above the cooker panel, allowing the cooker's bottom shell to be completely sealed. Compared to traditional bottom-inlet cookers, these cookers offer concentrated firepower, a higher heat load, more complete combustion, higher thermal efficiency, and the ability to use the inner burner ring independently.

[0003] However, due to the structural limitations of the upper air inlet burner, the burner's ejector tube is relatively short, resulting in a relatively small heat load on the upper air inlet burner. Domestic Chinese cooking requires a large-load burner for high-fire stir-frying, which limits the development of gas stoves with upper air inlet burners in China. If the length of the ejector tube is simply increased to increase the heat load of the upper air inlet burner, the thickness of the upper air inlet burner will increase, and negative effects such as uneven air premixing will occur. Summary of the Invention

[0004] The object of the present invention is to solve at least one of the above problems and / or other problems existing in the prior art.

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, a cooker is provided, which includes a cooker panel and an energy-gathering pot rack, wherein the cooker panel is provided with a combustion hole and an annular liquid collecting pan is provided corresponding to the combustion hole; the energy-gathering pot rack includes a first layer plate, a second layer plate, a third layer plate, and a plurality of first pot supports and a plurality of second pot supports, the plurality of first pot supports being arranged on the first layer plate at equal intervals to support the pot on the energy-gathering pot rack, and the plurality of second pot supports being arranged on the third layer plate at equal intervals to support the energy-gathering pot rack on the liquid collecting pan; wherein the first layer plate includes a plurality of annular sections arranged from the inside to the outside, each of the sections having a cross-section of a different shape, so that each of the sections is configured at its corresponding position to increase the velocity and turbulence of the flue gas flow and change the flow direction of the flue gas.

[0007] According to one embodiment of the present invention, the multiple sections include a first section, a second section, a third section and a fourth section arranged in sequence from the inside to the outside, the inner end of the second layer of board is connected to the first section, and the outer end of the second layer of board and the outer end of the third layer of board are respectively connected to the fourth section.

[0008] According to one embodiment of the present invention, the cross-section of the first section is arc-shaped and protrudes toward the axis of the energy-gathering pot support. The height of the first section gradually increases as it extends radially outward. The cross-section of the second section is an inclined straight line and gradually increases in height as it extends outward from the outer end of the first section. The cross-section of the third section is wavy and extends in a plane perpendicular to the axial direction of the energy-gathering pot support. The cross-section of the fourth section is an inverted "U" shape, and its side wall on the side close to the third section extends obliquely.

[0009] According to an embodiment of the present invention, the energy-concentrating pot rack further comprises a plurality of first pot supports equidistantly arranged on the first layer plate, and the plurality of first pot supports respectively extend toward a side of the first layer plate away from the second layer plate.

[0010] According to an embodiment of the present invention, the energy-concentrating pot rack further comprises a plurality of second pot supports equidistantly arranged on the third layer plate, and the plurality of second pot supports respectively extend toward a side of the third layer plate away from the second layer plate.

[0011] According to one embodiment of the present invention, the stove also includes a fire divider assembly, the fire divider assembly includes a fire divider body, an outer ring air guide plate and a central air guide plate, the fire divider body includes an outer ring air mixing chamber, at least two outer ring ejector tubes, a central air mixing chamber and a central ejector tube, the outer ring air mixing chamber includes an annular air mixing chamber body and at least two air mixing sections respectively arranged along the air mixing chamber body, the outer ring air guide plate is arranged in the outer ring air mixing chamber, the top of each air mixing section is respectively connected to the air mixing chamber body, the air outlet end of each outer ring ejector tube is connected to one of the air mixing sections, and each outer ring ejector tube extends from the corresponding air mixing section to the inner side of the air mixing chamber body, the central air mixing chamber is coaxially arranged at the center of the outer ring air mixing chamber, the central air guide plate is arranged in the central air mixing chamber, and the air outlet end of the central ejector tube is connected to the central air mixing chamber.

[0012] According to one embodiment of the present invention, the at least two gas mixing sections include a first gas mixing section and a second gas mixing section, and the at least two outer ring ejector tubes include a first ejector tube and a second ejector tube, the first ejector tube is connected to the side wall of the first gas mixing section, and the second ejector tube is connected to the side wall of the second gas mixing section.

[0013] According to one embodiment of the present invention, the first ejector tube and the second ejector tube are parallel to the central ejector tube and are centrally symmetrically arranged on both sides of the central gas mixing chamber.

[0014] According to one embodiment of the present invention, air channels are respectively provided between the first ejector tube and the outer ring air mixing chamber, and between the second ejector tube and the outer ring air mixing chamber. The first ejector tube and the second ejector tube are respectively provided with inclined surfaces close to the outer side walls of the outer ring air mixing chamber, and the elevation angle of the inclined surfaces is 45° to 60°.

[0015] According to one embodiment of the present invention, the bottom of each of the mixing sections has an extension surface, which extends obliquely upward from the bottom of the outer ring ejector tube to the bottom of the outer ring mixing chamber, and the cross-section of the mixing section gradually decreases along the gas flow direction.

[0016] According to one embodiment of the present invention, the gas outlet end of the central ejector pipe passes through the central gas mixing chamber and then extends to the center position of the central gas mixing chamber.

[0017] According to one embodiment of the present invention, the outer ring air guide plate has at least two outer ring lugs with outer ring air guide holes, and the outer ring lugs are arranged at the connection between the mixing section and the outer ring ejector pipe. The central air guide plate has a central lug with a central air guide hole, and the central lug is arranged at the air outlet end of the central ejector pipe.

[0018] According to one embodiment of the present invention, the stove also includes a base assembly connected to the fire divider body, the base assembly includes a base body, at least three nozzle mounting seats, and an outer ring air duct and a central air duct respectively arranged at the bottom of the base body, the base body is a plate-shaped structure, each of the nozzle mounting seats is respectively connected to the top of the base body, and extends vertically from the top of the base body to the side away from the base body, and the top of each nozzle mounting seat is provided with a nozzle with an air outlet facing the air inlet of the outer ring ejector tube or the central ejector tube, the central air duct extends parallel to the base body and is connected to one of the nozzle mounting seats, and the outer ring air duct extends parallel to the base body and is connected to the remaining nozzle mounting seats, wherein the outer ring air duct and the central air duct have overlapping parts in the projection of the base body respectively, and the distance between the outer ring air duct and the base body is smaller than the distance between the central air duct and the base body.

[0019] According to one embodiment of the present invention, the base body is rectangular in shape, and the at least three nozzle mounting seats include a first outer ring nozzle seat and a second outer ring nozzle seat respectively connected to the top of the base body, and the first outer ring nozzle seat and the second outer ring nozzle seat are respectively arranged at the two end positions of the diagonal line of the base body, and the axes of the nozzles respectively installed on the first outer ring nozzle seat and the second outer ring nozzle seat are parallel and the air outlets of the two nozzles are arranged in opposite directions.

[0020] According to one embodiment of the present invention, the at least three nozzle mounting seats also include a central nozzle seat installed on the top of the base body, the nozzle installed on the central nozzle seat is axially parallel to the nozzle installed on the second outer ring nozzle seat, and the air outlets of the two nozzles are arranged in the same direction.

[0021] According to one embodiment of the present invention, positioning columns are provided on the tops of the first outer ring nozzle seat and the second outer ring nozzle seat, and blind holes matching the positioning columns are provided on the bottom of the outer ring gas mixing chamber of the ignition divider body.

[0022] According to one embodiment of the present invention, the outer ring air duct includes a first air duct and a second air duct extending along the gas flow direction, the end of the first air duct away from the second air duct extends toward the base body to form a third air duct connected to the first outer ring nozzle seat, the end of the second air duct away from the first air duct extends toward the base body to form a fourth air duct connected to the second outer ring nozzle seat, the first air duct and the second air duct are respectively straight segments, and the first air duct and the second air duct are arranged at an obtuse angle.

[0023] According to one embodiment of the present invention, the central air duct is a straight line segment and its air inlet end is arranged on the same side of the periphery of the base body as the air inlet end of the first air duct, and the projection of the second air duct and the central air duct on the base body has an overlapping part.

[0024] According to one embodiment of the present invention, a support ring is provided on the top middle of the base body, which protrudes outward, and a positioning ring protruding toward the bottom is provided on the bottom of the central mixing chamber of the ignition divider body, and the support ring is adapted to the positioning ring to connect the ignition divider body to the base body.

[0025] According to an embodiment of the present invention, a plurality of fixing legs are arranged at intervals along the periphery of the base body, and each of the fixing legs is provided with a plurality of supporting protrusions protruding away from the base body.

[0026] An embodiment of the present invention has the following advantages or beneficial effects:

[0027] The stove of the present invention can provide multiple sections of the first layer with cross-sections of different shapes, which is beneficial for the high-temperature flue gas to increase the speed and turbulence of the flue gas flow and change the flow direction of the flue gas through the different cross-sections of the sections when passing through each section. By absorbing the heat radiated and dissipated by the high-temperature flue gas to the outside to increase its own temperature, the heat is transferred to the bottom of the pot through the radiation heat exchange between fixed surfaces, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0029] Figure 1 A perspective view showing a cooker according to an exemplary embodiment of the present invention.

[0030] Figure 2 Show Figure 1 Exploded view of the cooktop shown.

[0031] Figure 3 A perspective view of a base assembly is shown according to an exemplary embodiment of the present invention.

[0032] Figure 4 Show Figure 3 Bottom view of the base assembly shown.

[0033] Figure 5 Show Figure 4 A cross-sectional view of the base assembly and the diffuser assembly along line BB is shown.

[0034] Figure 6 Show Figure 4 A cross-sectional view of the base assembly and the spark distributor assembly taken along line CC is shown.

[0035] Figure 7 An exploded view of a spark distributor assembly is shown according to an exemplary embodiment of the present invention.

[0036] Figure 8 Show Figure 7 A top view of the dispenser body of the dispenser assembly is shown.

[0037] Figure 9 Show Figure 7 The ignition distributor assembly is shown along Figure 8 Sectional view along line AA.

[0038] Figure 10 An exploded view of an energy-gathering pot support according to an exemplary embodiment of the present invention is shown.

[0039] Figure 11 Show Figure 10 The cross-sectional view of the energy-gathering pot support is taken along the first pot support.

[0040] Figure 12 Show Figure 10 A partial cross-sectional view of the first layer of the energy-gathering pot rack is shown.

[0041] The description of the accompanying drawings is as follows:

[0042] 1. Cooker panel; 11. Burner hole; 12. Liquid tray; 2. Cooker housing; 21. Cooker interior; 3. Base assembly; 31. Base body; 311. Support ring; 312. Fixed leg; 3121. Mounting hole; 3122. Support bump; 32. Nozzle mounting seat; 321. Nozzle; 322. First outer ring nozzle seat; 323. Second outer ring nozzle seat; 324. Center nozzle seat; 325. Positioning column; 33. Outer ring airway; 331. First airway duct; 332, second air duct; 333, third air duct; 334, fourth air duct; 34, central air duct; 4, ignition distributor assembly; 41, blind hole; 42, positioning ring; 43, ignition distributor body; 431, outer ring mixing chamber; 4311, mixing chamber body; 4312, mixing section; 43121, first mixing section; 43122, second mixing section; 43123, extension surface; 4313, outer ring support column; 432, outer ring ejector tube; 4321, first Injection tube; 4322, second injection tube; 4323, inclined plane; 433, central gas mixing chamber; 4331, central support column; 434, central injection tube; 435; air channel; 44, outer ring air guide plate; 441, outer ring air guide hole; 442, outer ring lug; 45, central air guide plate; 451, central air guide hole; 452, central lug; 5, fire cover assembly; 51, inner fire cover; 52, outer fire cover; 6, energy-gathering pot rack; 61, first layer; 611, Section; 6111, first section; 6112, second section; 6113, third section; 6114, fourth section; 612, first positioning hole; 62, second layer; 621, first flange; 622, second flange; 63, third layer; 631, third flange; 632, second positioning hole; 64, first cavity; 65, second cavity; 66, first pot support; 661, first positioning portion; 67, second pot support; 671, second positioning portion. DETAILED DESCRIPTION

[0043] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0044] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0045] Figure 1 and Figure 2 FIG. 1 shows a cooker according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, the stove may include a stove panel 1, a stove housing 2, a base assembly 3, a ignition distributor assembly 4, a fire cover assembly 5, and an energy-gathering pot rack 6. The stove panel 1 is provided with a combustion hole 11, and an annular liquid receiving pan 12 is provided at a position corresponding to the combustion hole 11. The stove housing 2 is surrounded by a stove cavity 21 with a top opening that can accommodate the base assembly 3 and at least a portion of the ignition distributor assembly 4. The stove panel 1 is provided with at least one combustion hole 11 for allowing at least a portion of the ignition distributor assembly 4 to extend out of the stove cavity 21, so that after the stove panel 1 is placed on the top opening of the stove housing 2, at least a portion of the ignition distributor assembly 4 can extend out of the combustion hole 11. The energy-gathering pot rack 6 is arranged above the cooker panel 1 and corresponds to the outer periphery of the part of the ignition distributor assembly 4 extending outside the combustion hole 11. It absorbs the heat radiated and dissipated by the high-temperature flue gas to the outside to increase its own temperature, and then transfers the heat to the bottom of the pot through the form of radiation heat exchange between fixed surfaces. It can convert part of the heat dissipated by the flue gas to the outside into effective heat absorption by the pot body.

[0046] According to an exemplary embodiment of the base assembly 3, as Figures 3 to 6 As shown, the base assembly 3 may include a base body 31, at least three nozzle mounting seats 32, and an outer ring air channel 33 and a central air channel 34 respectively provided at the bottom of the base body 31. The base body 31 is a plate-shaped structure. In this embodiment, the base body 31 is provided at a position substantially flush with the cooktop 1, so that when each nozzle mounting seat 32 is connected to the top of the base body 31, the nozzle mounting seat 32 can be vertically extended from the top of the base body 31 to the side away from the base body 31 ( Figure 3 The central air passage 34 is parallel to the plane where the base body 31 is located ( FIG. 1 ). The central air passage 34 extends upwards perpendicular to the horizontal plane where the base body 31 is located, so that the nozzle 321 installed on the top of the nozzle mounting seat 32 can be exposed outside the combustion hole 11, achieving the purpose of upward air intake. Figure 6 The air inlet end of the central air passage 34 faces one side of the base body 31 ( Figure 6 The air outlet of the central air channel 34 is connected to one of the nozzle mounting seats 32 for supplying air to the central flame. The outer ring air channel 33 is parallel to the plane where the base body 31 is located ( Figure 5 The air inlet end of the outer ring air channel 33 faces one side of the base body 31 ( Figure 5As shown in FIG3 , the outer ring air duct 33 is connected to the nozzle mounting seat 32 other than the nozzle mounting seat 32 connected to the central air duct 34, so as to supply air to the outer ring flame. When viewed from the bottom of the base body 31 upward along the axial direction of the base body 31, the outer ring air duct 33 and the central air duct 34 have overlapping portions in their respective projections on the base body 31, which means that the outer ring air duct 33 and the central air duct 34 intersect. In order to avoid connecting the outer ring air duct 33 and the central air duct 34, the outer ring air duct 33 can be set at a position closer to the base body 31, while the central air duct 34 can be set at a position farther from the base body 31, so that the distance between the outer ring air duct 33 and the base body 31 is smaller than the distance between the central air duct 34 and the base body 31, so that at least three nozzle mounting seats 32 can be set at any position of the base body 31, and the air inlet of the outer ring air duct 33 and the air inlet of the central air duct 34 are symmetrically set on the same side of the base body 31.

[0047] According to an exemplary embodiment of the nozzle mount 32, as shown in FIG. Figure 3 As shown, the base body 31 is rectangular in shape, with rounded corners corresponding to the rectangle for safety reasons. At least three nozzle mounts 32 include a first outer ring nozzle mount 322 and a second outer ring nozzle mount 323. The first and second outer ring nozzle mounts 322, 323 are respectively connected to the top of the base body 31 and are located at the diagonal ends of the base body 31. This allows the axes of the two nozzles 321 to be coaxial or parallel when the nozzles 321 are mounted on the first and second outer ring nozzle mounts 322, 323, respectively. For example, when the air outlets of the two nozzles 321 are arranged opposite each other along the diagonal line, the axes of the two nozzles 321 are coaxial. When the axes of the two nozzles 321 are both arranged along the length of the base body 31, the axes of the two nozzles 321 are parallel. In this embodiment, the axes of the two nozzles 321 are parallel, and the air outlets of the two nozzles 321 are preferably oriented opposite each other. By setting the first outer ring nozzle seat 322 and the second outer ring nozzle seat 323 at the same time, two nozzles 321 can be set from the first outer ring nozzle seat 322 and the second outer ring nozzle seat 323 to enter the ignition divider assembly 4 at the same time, which is beneficial to improving the ability of the two nozzles 321 to inject primary air, reduce the CO content in the flue gas, and improve combustion efficiency.

[0048] Furthermore, the at least three nozzle mounting seats 32 further include a central nozzle seat 324, which is also mounted on the top of the base body 31. The axis of the nozzle 321 mounted on the central nozzle seat 324 is parallel to the axis of the nozzle 321 mounted on the second outer ring nozzle seat 323, and the air outlet of the nozzle 321 on the central nozzle seat 324 is arranged in the same direction as the air outlet of the nozzle 321 on the second outer ring nozzle seat 323, so that the air outlet of the nozzle 321 on the central nozzle seat 324 is arranged in the opposite direction to the air outlet of the nozzle 321 on the first outer ring nozzle seat 322.

[0049] To circumferentially pre-position or limit the base body 31 and the igniter assembly 4, and to prevent circumferential displacement of the igniter body 43 relative to the base body 31, positioning posts 325 are provided at the bottoms of the first outer ring nozzle seat 322 and the second outer ring nozzle seat 323. Correspondingly, blind holes 41 are provided on the igniter assembly 4 to mate with the positioning posts 325. It is understood that the positioning posts 325 can also be provided on the central nozzle seat 324, with the blind holes 41 matching the positioning posts 325 being provided on the igniter assembly 4 at positions corresponding to the central nozzle seat 324.

[0050] According to an exemplary embodiment of the outer ring air duct 33, as shown in FIG. Figure 5 As shown, the outer ring air channel 33 includes a first air channel 331 and a second air channel 332 extending along the gas flow direction. The second air channel 332 is connected to the gas outlet of the first air channel 331. The end of the first air channel 331 away from the second air channel 332 ( Figure 5 The end portion of the first air passage 331 shown in FIG. 331 at the air inlet thereof is upward ( Figure 5 A third air channel 333 is formed on the side of the base body 31 shown in the figure. The air outlet end of the third air channel 333 is connected to the first outer ring nozzle seat 322. The second air channel 332 is away from the end of the first air channel 331 ( Figure 5 The end portion of the second air passage 332 shown in FIG. 332 at which the air outlet is located is upward ( Figure 5 A fourth air channel 334 is formed extending from one side of the base body 31 (shown), and the outlet end of the fourth air channel 334 is connected to the second outer ring nozzle seat 323. In this way, the outer ring air channel 33 connects the first outer ring nozzle seat 322 and the second outer ring nozzle seat 323, which are located diagonally opposite each other. Part of the gas entering the outer ring air channel 33 from the air inlet enters the first outer ring nozzle seat 322 via the first air channel 331 and the third air channel 333, while the remaining part enters the second outer ring nozzle seat 323 via the first air channel 331, the second air channel 332, and the fourth air channel 334.

[0051] Furthermore, the first air duct 331 and the second air duct 332 are respectively straight segments, and the first air duct 331 and the second air duct 332 are arranged at an obtuse angle, which can reduce the resistance loss of the gas when passing through the turning flow channel at the connection between the first air duct 331 and the second air duct 332, increase the gas pressure, and reduce the attenuation of the heat load.

[0052] In the above embodiment, the central air channel 34 is a straight line segment and its air inlet end and the air inlet end of the first air channel 331 are arranged on the same side of the periphery of the base body 31 ( Figure 4 The first air channel 331 is connected to the left side of the base body 31 as shown, facilitating simultaneous connection of the air inlet ends of the central air channel 34 and the outer ring air channel 33 to the stopcock. Thus, after the first air channel 331 extends along the length of the base body 31, it overlaps with the projection of the central air channel 34 on the base body 31 through the second air channel 332. Thus, the second air channel 332 extends from a corresponding position on the first nozzle mounting seat 32 located to the left of the central air channel 34 to a corresponding position on the second nozzle mounting seat 32 located to the left of the central nozzle seat 324.

[0053] Continue to refer Figure 5 , combined with the positioning column 325 and the blind hole 41 in the above embodiment, the top middle of the base body 31 is outward ( Figure 6 A support ring 311 is provided on a protrusion above the top of the base body 31 as shown, and a positioning ring 42 matching the support ring 311 is provided on the ignition divider assembly 4. The ignition divider assembly 4 is arranged above the base body 31 by fitting the positioning ring 42 on the outer periphery of the support ring 311 (or the support ring 311 on the outer periphery of the positioning ring 42). The air outlets of the three nozzles 321 correspond to the first outer ring ejection tube 432, the second outer ring ejection tube 432 and the inner ring ejection tube respectively.

[0054] To stably secure the base body 31 to the cooker housing 2, a plurality of fixing legs 312 are spaced apart along the periphery of the base body 31. The fixing legs 312 are configured so that bolts passing through mounting holes 3121 in the fixing legs 312 can secure the base body 31 to the cooker housing 2 or to a bracket connected to the cooker housing 2. Each fixing leg 312 is provided with a plurality of support bumps 3122 projecting toward the side away from the base body 31. These support bumps 3122 are 1 mm to 2 mm in height. This reduces the contact area between the fixing legs 312 and the cooker housing 2, thereby minimizing heat loss by transferring high-temperature heat from the fixing legs 312 to the cooker housing 2.

[0055] According to an exemplary embodiment of the fire distributor assembly 4, Figures 7 to 9As shown, the ignition divider assembly 4 includes an ignition divider body 43, an outer ring air guide plate 44, and a central air guide plate 45. The ignition divider body 43 includes an outer ring gas mixing chamber 431, at least two outer ring ejector tubes 432 corresponding to the outer ring gas mixing chamber 431, a central gas mixing chamber 433, and a central ejector tube 434 corresponding to the central gas mixing chamber 433. The outer ring gas mixing chamber 431 includes an annular gas mixing chamber body 4311 and at least two gas mixing sections 4312 spaced apart along the gas mixing chamber body 4311. The top of each gas mixing section 4312 is connected to the gas mixing chamber body 4311, and the side wall of each gas mixing section 4312 is connected to the gas outlet end of an outer ring ejector tube 432. Each outer ring ejector tube 432 extends from the corresponding gas mixing section 4312 to the inner side of the gas mixing chamber body 4311, and the air inlet of one outer ring ejector tube 432 corresponds to the air outlet of the nozzle 321 installed on the first outer ring nozzle seat 322, and the air inlet of the other outer ring ejector tube 432 corresponds to the air outlet of the nozzle 321 installed on the second outer ring nozzle seat 323. A gap for air flow is also provided between the nozzle 321 and the outer ring ejector tube 432, so that when the gas is ejected from the nozzle 321 into the outer ring ejector tube 432, it can be sucked into the outer ring ejector tube 432 together with the air through the negative pressure effect for mixing. By introducing gas and air simultaneously through the two outer ring ejector tubes 432, the ability of the outer ring gas mixing chamber 431 to eject primary air can be improved, thereby solving the problem of increased outer ring fire load and excessive CO content in the flue gas. The central mixing chamber 433 is coaxially arranged at the center of the outer ring mixing chamber 431. It can be understood that when the outer ring ejector tube 432 extends toward the inner side of the mixing chamber body 4311, it can be as follows: Figure 9 The horizontal projections of the outer ring ejector tubes 432 and the central mixing chamber 433 overlap, but the outer ring ejector tubes 432 and the central mixing chamber 433 are not connected. The outlet end of the central ejector tube 434 is connected to the central mixing chamber 433, and the inlet end of the central ejector tube 434 corresponds to the outlet of the nozzle 321 mounted on the central nozzle holder 324. The nozzle 321 can also use negative pressure to draw air into the gap between the central ejector tube 434 and the nozzle 321, where it mixes with the fuel gas.

[0056] In the above embodiment, Figure 9As shown, the at least two gas mixing sections 4312 include a first gas mixing section 43121 and a second gas mixing section 43122. Correspondingly, the at least two outer ring ejector tubes 432 include a first ejector tube 4321 and a second ejector tube 4322. The first ejector tube 4321 communicates with the sidewall of the first gas mixing section 43121, while the second ejector tube 4322 communicates with the sidewall of the second gas mixing section 43122. This allows the gas to mix with the air and enter the first and second gas mixing sections 43121 and 43122, respectively, and then gradually flow upward along the circumference of the igniter body 43 into the gas mixing chamber body 4311. Furthermore, the first and second ejector tubes 4321 and 4322 are parallel to the central ejector tube 434 and are symmetrically arranged on either side of the central gas mixing chamber 433. The three ejector tubes are arranged in parallel at the bottom of the ignition distributor body 43, so as to reduce the space occupied by the ejector tubes as much as possible and maximize the ability to eject the primary air within the limited space.

[0057] According to an exemplary embodiment of the gas mixing section 4312, Figure 8 and Figure 9 As shown, the bottom of each mixing section 4312 has an extension surface 43123, with the elevation angle of the extension surface 43123 set between 25° and 30°. The extension surface 43123 extends upward from the bottom of the outer ring ejector tube 432 to the bottom of the outer ring mixing chamber 431, while the bottom of the outer ring mixing chamber 431 is flat. The mixed gas entering the mixing section 4312 through the outer ring ejector tube 432 changes its flow direction along the extension surface 43123, is further mixed within the mixing section 4312, and flows along the extension surface 43123 to the flat portion of the outer ring mixing chamber 431. This can reduce the impact of the mixed gas on the igniter body 43 and the resulting turbulence. Furthermore, the cross-section of the mixing section 4312 gradually decreases along the gas flow direction, which can increase the flow rate of the mixed gas and prevent backfire caused by pressure changes.

[0058] According to an exemplary embodiment of the outer ring ejector tube 432, the air inlet end of the first ejector tube 4321 and the air inlet end of the second ejector tube 4322 are centrally symmetrically arranged relative to the central mixing chamber 433, so that when the ignition divider body 43 is connected to the base body 31, the air inlet end of the first ejector tube 4321 can correspond to the nozzle 321 on the first outer ring nozzle seat 322, and at the same time, the air inlet end of the second ejector tube 4322 can correspond to the nozzle 321 on the second outer ring nozzle seat 323.

[0059] In the above embodiment, continue to refer to Figure 8 and Figure 9An air channel 435 is provided between the first ejector pipe 4321 and the outer ring mixing chamber 431, and between the second ejector pipe 4322 and the outer ring mixing chamber 431. The function of the air channel 435 is that air can flow along the air channel 435 into the top periphery of the central mixing chamber 433, providing secondary air supplement for the combustion of the central flame. Furthermore, the first ejector pipe 4321 and the second ejector pipe 4322 are respectively provided with an inclined surface 4323 on the outer side of the side wall close to the outer ring mixing chamber 431, and the elevation angle of the inclined surface 4323 is 45° to 60°. It is beneficial for the secondary air to flow upward along the inclined upward angle, reduce resistance, effectively increase the supply of secondary air, and burn more fully.

[0060] According to an exemplary embodiment of the central ejector tube 434, Figure 8 As shown, the outlet end of the central ejector tube 434 passes through the central mixing chamber 433 and extends to the center position of the central mixing chamber 433, thereby improving the ejection capacity of the central ejector tube 434 and the ejection coefficient of the primary air by extending the length of the central ejector tube 434, so that the mixed gas in the central mixing chamber 433 burns more fully.

[0061] To ensure proper coordination between the igniter body 43 and the base body 31, a positioning ring 42 protrudes from the bottom (the underside of the igniter body 43) of the central mixing chamber 433 of the igniter body 43. This ring is designed to mate with the upwardly protruding support ring 311 at the top of the base body 31. Furthermore, a blind hole 41 for positioning is provided at the bottom of the outer ring mixing chamber 431. This blind hole 41 mates with the positioning posts 325 provided on the first and second outer ring nozzle seats 322 and 323, respectively.

[0062] According to an exemplary embodiment of the outer ring air guide plate 44, Figure 7 As shown, the outer ring air guide plate 44 is disposed within the outer ring gas mixing chamber 431 and has at least two outer ring lugs 442 with outer ring air guide holes 441. The outer ring lugs 442 are disposed at the junction of the gas mixing section 4312 and the outer ring ejector tube 432. For example, an outer ring lug 442 is disposed at the junction of the first ejector tube 4321 and the first gas mixing section 43121, and an outer ring lug 442 is disposed at the junction of the second ejector tube 4322 and the second gas mixing section 43122. Through the multiple outer ring air guide holes 441 on the outer ring lugs 442, a small portion of the mixed gas flows out through the outer ring air guide holes 441, which helps improve the uniformity of the outer ring flame.

[0063] Specifically, the outer ring air guide plate 44 extends outward along the inner sidewall of the outer ring air mixing chamber 431 to cover at least a portion of the outer ring air mixing chamber 431. Preferably, the width of the outer ring air guide plate 44 is approximately 5 mm, while the width of the outer ring lug 442 is twice the width of the outer ring air guide plate 44. A plurality of outer ring support columns 4313 are evenly spaced at the bottom of the outer ring air mixing chamber 431 to support the outer ring air guide plate 44.

[0064] According to an exemplary embodiment of the central air guide plate 45, Figure 7 As shown, the central air guide plate 45 is disposed within the central mixing chamber 433 and has a central lug 452 with a central air guide hole 451. The central lug 452 is disposed at the gas outlet end of the central ejector tube 434. Through the multiple central air guide holes 451 on the central lug 452, a small portion of the mixed gas flows out through the central air guide holes 451, which helps improve the uniformity of the central flame.

[0065] Specifically, the central air guide plate 45 extends inward along the outer sidewall of the central air mixing chamber 433 to cover at least a portion of the central air mixing chamber 433. Preferably, the width of the central air guide plate 45 is approximately 3 mm to 5 mm, while the width of the central lug 452 is twice the width of the central air guide plate 45. A plurality of central support columns 4331 are evenly spaced at the bottom of the central air mixing chamber 433 to support the central air guide plate 45.

[0066] According to an exemplary embodiment of the fire cover assembly 5, Figure 2 As shown, the fire cover assembly 5 includes an inner fire cover 51 and an outer fire cover 52, wherein the inner fire cover 51 is provided with inner fire holes on the circumferential outer side and covers the top of the central gas mixing chamber 433, and the outer fire cover 52 is provided with outer fire holes on the circumferential outer side and covers the top of the outer annular gas mixing chamber 431. This embodiment is a conventional configuration and will not be described in detail here.

[0067] According to an exemplary embodiment of the energy-gathering pot support 6, Figure 10 and Figure 11As shown, the energy-concentrating pot support 6 comprises a first, second, and third annular plate 61, 62, and 63. The first plate 61 extends substantially radially along the energy-concentrating pot support 6 and comprises multiple annular segments 611, arranged radially from the inside out. Each segment 611 has a different cross-sectional shape from the other segments 611. For example, the cross-sectional shapes of the multiple segments 611 may be linear, arc-shaped, or circular. These segments 611 are positioned at different locations to increase the velocity and turbulence of the flue gas flow and alter its direction. The inner end of the second plate 62 is connected to the inner end of the first plate 61, and the outer end of the second plate 62 is connected to the outer end of the first plate 61. This creates a first cavity 64 between the first and second plates 61, 62, which serves as an upper air insulation layer. The first cavity 64, approximately 2.5 mm to 3 mm in height, radiates high-temperature heat upward to the upper surface of the energy-concentrating pot support 6 (i.e., the upper surface of the first layer 61), raising the temperature of the pot-side surface of the energy-concentrating pot support 6. This strengthens the ability of the heat from the energy-concentrating pot support 6 to radiate to the pot bottom, thereby improving thermal efficiency. The inner end of the third layer 63 is connected to the inner end of the second layer 62, and the outer end of the third layer 63 is connected to the outer end of the first layer 61. This creates a second cavity 65 between the second and third layers 62, 63, which acts as a lower air insulation layer. This second cavity 65, approximately 30 mm in height, isolates the cooling effect of cold air from the outer periphery of the energy-concentrating pot support 6 on the inner surface of the pot support 6, thereby improving the temperature of the inner surface of the pot support 6.

[0068] According to an exemplary embodiment of the plurality of segments 611, as Figure 12 As shown, the multiple segments 611 include a first segment 6111, a second segment 6112, a third segment 6113, and a fourth segment 6114, arranged sequentially from the inside out. The first segment 6111, the second segment 6112, the third segment 6113, and the fourth segment 6114 each exhibit different cross-sections depending on their location, thereby fulfilling corresponding functions in their respective positions. Corresponding to the positions of the first segment 6111 and the fourth segment 6114, the inner end of the second layer 62 is connected to the inner side of the first segment 6111, and the outer ends of the second layer 62 and the outer ends of the third layer 63 are respectively connected to the outer end of the fourth segment 6114.

[0069] According to an exemplary embodiment of the first section 6111, continue to refer to Figure 12The first section 6111 has an arc-shaped cross-section and protrudes toward the axis of the energy-concentrating pot support 6. The height of the first section 6111 gradually increases as it extends radially outward. The arc radius of the first section 6111 is approximately 70 mm to 90 mm. This prevents the vortex flow that occurs in conventional concave energy-concentrating plates, thereby preventing some high-temperature flue gas from entering the vortex and reducing heat exchange with the pot bottom. Furthermore, it increases the flow of secondary air, increases the flow velocity of the high-temperature flue gas, and enhances heat exchange between the high-temperature flue gas and the pot bottom.

[0070] According to an exemplary embodiment of the second section 6112, continue to refer to Figure 12 The cross section of the second section 6112 is in the shape of an inclined straight line, and its height gradually increases as it extends outward from the outer end of the first section 6111, thereby reflecting more heat to the bottom of the cookware.

[0071] Because a thermal boundary layer is formed when the high-temperature flue gas exchanges heat with the bottom of the pot, the existence of the thermal boundary layer increases the heat exchange resistance between the high-temperature flue gas and the bottom of the pot, and reduces the heat exchange between the flue gas and the bottom of the pot. In order to destroy this thermal boundary layer, such as Figure 12 As shown, at the smoke outlet of the energy-gathering pot rack 6 (the location of the third section 6113), the cross section of the third section 6113 is set to be wavy, and the third section 6113 is perpendicular to the axial plane of the energy-gathering pot rack 6 (as shown in FIG. Figure 12 The third section 6113 extends within the horizontal plane shown. A cross-section of the third section 6113 shows 5 to 10 ripples, each 5 to 10 mm high. When the combustion flue gas passes through the third section 6113, it experiences severe disturbances, increasing the turbulence of the flue gas flow, disrupting the thermal boundary layer formed between the high-temperature flue gas and the pot bottom, and improving thermal efficiency by approximately 5%.

[0072] Since there is still a certain temperature of high-temperature flue gas after heat exchange from the third section 6113, part of the high-temperature flue gas flows horizontally inward along the bottom of the cookware, part of it flows upward along the edge of the side of the cookware to further exchange heat with the cookware, and most of the high-temperature flue gas flows horizontally outward into the air, resulting in high-temperature flue gas loss. In order to reduce the loss of high-temperature flue gas flowing outward in the horizontal direction, as shown in the following example: Figure 12 As shown, a fourth segment 6114 is provided on the periphery of the third segment 6113. The cross section of the fourth segment 6114 is in an inverted "U" shape, and one side of the fourth segment 6114 close to the third segment 6113 ( Figure 12The sidewalls of the fourth section 6114 (inside) shown in FIG. 1 are inclined to redirect the high-temperature flue gas, allowing more of the hot flue gas to flow upward along the side edges of the cookware, thereby improving heat exchange efficiency. The fourth section 6114 is approximately 5 mm in height and 5 mm in width.

[0073] Regarding the more specific connection between the first layer board 61 and the second layer board 62, as shown in FIG. Figure 11 As shown, a first flange 621 is provided on the outer periphery of the second layer plate 62 , and the first flange 621 is fitted and fixed to the outer side wall of the fourth section 6114 , preferably by spot welding.

[0074] Furthermore, regarding the more specific connection between the second layer board 62 and the third layer board 63 and the first layer board 61, as shown in FIG. Figure 11 As shown, the inner peripheries of the second layer plate 62 and the third layer plate 63 respectively have a second flange 622 and a third flange 631 that fit together. The second flange 622 and the third flange 631 are respectively fixed to the first section 6111, preferably by spot welding.

[0075] In the above embodiment, Figure 10 and Figure 11 As shown, the energy-gathering pot rack 6 further includes a plurality of first pot supports 66 and a plurality of second pot supports 67. The plurality of first pot supports 66 are arranged on the first layer plate 61 at equal intervals and face the side of the first layer plate 61 away from the second layer plate 62 ( Figure 11 The first layer plate 61 shown in FIG2 extends to support the pot on the energy-gathering pot support 6, and a gap for high-temperature smoke to flow is formed between the bottom of the pot and the energy-gathering pot support 6. A plurality of second pot supports 67 are arranged on the third layer plate 63 at equal intervals and face the side of the third layer plate 63 away from the second layer plate 62 ( Figure 11 The second pot support 67 extends below the third layer 63 shown in the figure, thereby supporting the energy-concentrating pot support 6 and the pot together on the cooktop 1. In particular, when a liquid pan 12 is provided at the combustion hole 11 of the cooktop 1, the energy-concentrating pot support 6 and the pot can be supported on the liquid pan 12 by the second pot support 67, thereby indirectly supporting the energy-concentrating pot support 6 and the pot together on the cooktop 1. The separate first pot support 66 and second pot support 67 prevent the high-temperature heat of the first pot support 66 of the energy-concentrating pot support 6 from being transferred to the second pot support 67, causing heat loss. There are four first pot supports 66 and four second pot supports 67, each approximately 3.5 mm thick. Reducing the thickness of the material used for the first and second pot supports 66 and 67 also helps reduce costs and heat loss.

[0076] Specifically, the first layer 61 is provided with a first positioning hole 612 at a position corresponding to the first pot support 66. The bottom of the first pot support 66 is provided with a first positioning portion 661 that matches the first positioning hole 612. The first positioning portion 661 is inserted into the first positioning hole 612 and then welded to the bottom. The third layer 63 is provided with a second positioning hole 632 at a position corresponding to the second pot support 67. The middle of the second pot support 67 is provided with a second positioning portion 671 that matches the second positioning hole 632. The second positioning portion 671 is inserted into the second positioning hole 632 and then welded to the bottom.

[0077] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on specific circumstances.

[0078] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0079] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0080] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible in the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A stove, characterized in that: include: A stove panel (1), wherein a combustion hole (11) is provided on the stove panel (1) and an annular liquid receiving pan (12) is provided corresponding to the combustion hole (11); and An energy-gathering pot rack (6), the energy-gathering pot rack (6) comprising a first layer plate (61), a second layer plate (62), a third layer plate (63), and a plurality of first pot supports (66) and a plurality of second pot supports (67), the plurality of first pot supports (66) being arranged on the first layer plate (61) at equal intervals to support the pot on the energy-gathering pot rack (6), the plurality of second pot supports (67) being arranged on the third layer plate (63) at equal intervals to support the energy-gathering pot rack (6) on the liquid receiving tray (12); the inner end of the second layer plate (62) being connected to the inner end of the first layer plate (61), and the outer end of the second layer plate (62) being connected to the outer end of the first layer plate (61), thereby 1) A first cavity (64) is formed between the second plate (62) and the second plate (62) to serve as an upper air insulation interlayer; the inner end of the third plate (63) is connected to the inner end of the second plate (62), and the outer end of the third plate (63) is connected to the outer end of the first plate (61), thereby forming a second cavity (65) between the second plate (62) and the third plate (63) to serve as a lower air insulation interlayer; wherein the first plate (61) includes a plurality of sections (611) arranged from the inside to the outside and each of which is annular, each of which has a cross-section of a different shape, so that each of the sections (611) is configured at its corresponding position to increase the velocity and turbulence of the smoke flow and change the flow direction of the smoke; The multiple sections (611) include a first section (6111), a second section (6112), a third section (6113), and a fourth section (6114) arranged in sequence from the inside to the outside; the inner end of the second layer plate (62) is connected to the first section (6111); the outer end of the second layer plate (62) and the outer end of the third layer plate (63) are respectively connected to the fourth section (6114); The cross section of the first section (6111) is in the shape of an arc and protrudes toward the axis of the energy-gathering pot rack (6); the height of the first section (6111) gradually increases as it extends radially outward; the cross section of the second section (6112) is in the shape of an inclined straight line and gradually increases in height as it extends outward from the outer end of the first section (6111); the cross section of the third section (6113) is in the shape of a wave and extends in a plane perpendicular to the axial direction of the energy-gathering pot rack (6); the cross section of the fourth section (6114) is in the shape of an inverted "U", and the side wall thereof on the side close to the third section (6113) extends obliquely; The stove further comprises a ignition divider assembly (4), the ignition divider assembly (4) comprising a ignition divider body (43), the ignition divider body (43) comprising an outer ring gas mixing chamber (431), at least two outer ring ejector tubes (432), the at least two outer ring ejector tubes (432) comprising a first ejector tube (4321) and a second ejector tube (4322), the first ejector tube (4321) and the second ejector tube (4322) respectively being provided with an inclined surface (4323) on the outer side of a side wall close to the outer ring gas mixing chamber (431), and the elevation angle of the inclined surface (4323) is 45° to 60°.

2. The cooker according to claim 1, characterized in that: The energy-gathering pot rack (6) further comprises a plurality of first pot supports (66) arranged in an equidistant ring on the first layer plate (61), the plurality of first pot supports (66) respectively extending towards a side of the first layer plate (61) away from the second layer plate (62).

3. The cooker according to claim 1, characterized in that: The energy-gathering pot rack (6) further comprises a plurality of second pot supports (67) equidistantly arranged on the third layer plate (63), wherein the plurality of second pot supports (67) respectively extend toward a side of the third layer plate (63) away from the second layer plate (62).

4. The cooker according to any one of claims 1 to 3, characterized in that: The ignition distributor assembly (4) further comprises an outer ring air guide plate (44) and a central air guide plate (45), the ignition distributor body (43) further comprises a central air mixing chamber (433) and a central ejector tube (434), the outer ring air mixing chamber (431) comprises an annular air mixing chamber body ( 4311) and at least two mixing sections (4312) are respectively arranged at intervals along the mixing chamber body (4311), the outer ring mixing chamber (431) is provided with the outer ring air guide plate (44), the top of each mixing section (4312) is respectively communicated with the mixing chamber body (4311), the gas outlet end of each outer ring ejector tube (432) is communicated with one mixing section (4312), each outer ring ejector tube (432) extends from the corresponding mixing section (4312) to the inner side of the mixing chamber body (4311), the central mixing chamber (433) is coaxially arranged at the center of the outer ring mixing chamber (431), the central air guide plate (45) is provided in the central mixing chamber (433), and the gas outlet end of the central ejector tube (434) is communicated with the central mixing chamber (433).

5. The cooker according to claim 4, characterized in that: The at least two gas mixing sections (4312) include a first gas mixing section (43121) and a second gas mixing section (43122), the first ejector tube (4321) is connected to a side wall of the first gas mixing section (43121), and the second ejector tube (4322) is connected to a side wall of the second gas mixing section (43122).

6. The cooker according to claim 5, characterized in that: The first ejection tube (4321) and the second ejection tube (4322) are parallel to the central ejection tube (434) and are centrally symmetrically arranged on both sides of the central gas mixing chamber (433).

7. The cooker according to claim 6, characterized in that: Air channels (435) are respectively provided between the first ejector tube (4321) and the outer ring gas mixing chamber (431), and between the second ejector tube (4322) and the outer ring gas mixing chamber (431).

8. The cooker according to claim 4, characterized in that: The bottom of each gas mixing section (4312) has an extension surface (43123), and the extension surface (43123) extends obliquely upward from the bottom of the outer ring ejector tube (432) to the bottom of the outer ring gas mixing chamber (431), and the cross-section of the gas mixing section (4312) gradually decreases along the gas flow direction.

9. The cooker according to claim 4, characterized in that: The gas outlet end of the central ejector tube (434) passes through the central gas mixing chamber (433) and then extends to the center position of the central gas mixing chamber (433).

10. The cooker according to claim 4, characterized in that: The outer ring air guide plate (44) has at least two outer ring lugs (442) with outer ring air guide holes (441), and the outer ring lugs (442) are arranged at the connection between the air mixing section (4312) and the outer ring ejector tube (432). The central air guide plate (45) has a central lug (452) with a central air guide hole (451), and the central lug (452) is arranged at the air outlet end of the central ejector tube (434).

11. The cooker according to claim 4, characterized in that: The stove also includes a base assembly (3) connected to the fire distributor body (43), the base assembly (3) including a base body (31), at least three nozzle mounting seats (32), and an outer ring air channel (33) and a central air channel (34) respectively arranged at the bottom of the base body (31), the base body (31) being a plate-shaped structure, each of the nozzle mounting seats (32) being respectively connected to the top of the base body (31) and extending vertically from the top of the base body (31) to a side away from the base body (31), and each of the nozzle mounting seats (32) being provided with an air outlet at the top facing the outer ring ejector pipe (432) or the nozzle (321) of the air inlet of the central ejection tube (434), the central air channel (34) extends parallel to the base body (31) and is connected to one of the nozzle mounting seats (32), and the outer ring air channel (33) extends parallel to the base body (31) and is connected to the remaining nozzle mounting seats (32), wherein the outer ring air channel (33) and the central air channel (34) have overlapping parts in their projections on the base body (31), and the distance between the outer ring air channel (33) and the base body (31) is smaller than the distance between the central air channel (34) and the base body (31).

12. The cooker according to claim 11, characterized in that: The base body (31) is rectangular in shape, and the at least three nozzle mounting seats (32) include a first outer ring nozzle seat (322) and a second outer ring nozzle seat (323) respectively connected to the top of the base body (31), the first outer ring nozzle seat (322) and the second outer ring nozzle seat (323) are respectively arranged at two end positions of the diagonal line of the base body (31), and the axes of the nozzles (321) respectively mounted on the first outer ring nozzle seat (322) and the second outer ring nozzle seat (323) are parallel and the air outlets of the two nozzles (321) are arranged in opposite directions.

13. The cooker according to claim 12, characterized in that: The at least three nozzle mounting seats (32) further include a central nozzle seat (324) mounted on the top of the base body (31), the nozzle (321) mounted on the central nozzle seat (324) and the nozzle (321) mounted on the second outer ring nozzle seat (323) are axially parallel, and the air outlets of the two nozzles (321) are arranged in the same direction.

14. The cooker according to claim 12, characterized in that: Positioning columns (325) are provided on the top of the first outer ring nozzle seat (322) and the second outer ring nozzle seat (323), and a blind hole (41) matching the positioning columns (325) is provided on the bottom of the outer ring gas mixing chamber (431) of the ignition distributor body (43).

15. The cooker according to claim 12, characterized in that: The outer ring air channel (33) includes a first air channel (331) and a second air channel (332) extending in the direction of gas flow, wherein the end of the first air channel (331) away from the second air channel (332) extends toward the base body (31) to form a third air channel (333) connected to the first outer ring nozzle seat (322), and the end of the second air channel (332) away from the first air channel (331) extends toward the base body (31) to form a fourth air channel (334) connected to the second outer ring nozzle seat (323), the first air channel (331) and the second air channel (332) are respectively straight line segments, and the first air channel (331) and the second air channel (332) are arranged at an obtuse angle.

16. The cooker according to claim 15, characterized in that: The central air channel (34) is a straight line segment, and its air inlet end and the air inlet end of the first air channel (331) are arranged on the same side of the periphery of the base body (31), and the projections of the second air channel (332) and the central air channel (34) on the base body (31) have an overlapping portion.

17. The cooker according to claim 11, characterized in that: A support ring (311) is provided at the middle of the top of the base body (31) and protrudes outwards. A positioning ring (42) that protrudes toward the bottom is provided at the bottom of the central mixing chamber (433) of the ignition distributor body (43). The support ring (311) is matched with the positioning ring (42) to connect the ignition distributor body (43) to the base body (31).

18. The cooker according to claim 11, characterized in that: A plurality of fixed legs (312) are arranged at intervals along the periphery of the base body (31), and each of the fixed legs (312) is provided with a plurality of supporting protrusions (3122) protruding away from the base body (31).

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