Energy-saving pot racks and stoves

Abstract

The present invention provides an energy-gathering pot rack and a stove. The energy-gathering pot rack includes a first plate, a second plate, and a third plate, each of which is in the shape of a ring. The first plate includes a plurality of sections arranged from the inside to the outside and each of which is in the shape of a ring. Each section has a cross-section of a different shape, so that each section is constructed at its corresponding position to increase the speed and turbulence of the flue gas flow and change the flow direction of the flue gas; the inner end of the second plate is connected to the inner end of the first plate, and the outer end of the second plate is connected to the outer end of the first plate, so as to enclose and form a first cavity; the inner end of the third plate is connected to the inner end of the second plate, and the outer end of the third plate is connected to the outer end of the first plate, so as to enclose and form a second cavity. The energy-gathering pot rack of the present invention can enhance the intensity of the high-temperature heat of the energy-gathering pot rack radiated to the bottom of the pot, which is beneficial to improving thermal efficiency, isolating the cooling effect of the external cold air on the inner surface of the energy-gathering pot rack, and is beneficial to increasing the temperature of the inner surface of the energy-gathering pot rack.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, in particular to an energy-gathering pot rack and a stove. Background Art

[0002] Energy-gathering pan supports applied to gas stoves can improve the stove's thermal efficiency. First, they isolate cold air. Adding an energy-gathering ring to the pan support prevents excessive outside air from entering the flame zone through convection and diffusion, thereby preventing a decrease in flame temperature and heat transfer efficiency. This creates a high-temperature combustion and heat exchange zone between the energy-gathering ring and the pan base, effectively promoting complete combustion of the gas and heat transfer between the high-temperature flue gas and the pan base. Second, they improve heat transfer intensity. With the energy-gathering ring in place, the flue gas flows within a limited cross-sectional channel between the ring and the pan base, increasing the flue gas's speed across the pan, boosting the convective heat transfer coefficient and thus improving heat transfer between the flue gas and the pan. Finally, they enhance thermal radiation. The energy-gathering ring pan support absorbs heat dissipated by the high-temperature flue gas to the outside world, raising its own temperature. The high-temperature energy-gathering ring then transfers this heat to the pan base through radiation heat transfer between its fixed surfaces, converting some of the heat lost by the flue gas into effective heat absorption by the pan.

[0003] Prior art, such as patent document CN219083192U, discloses a stove heat shield with an arc-shaped upper surface. The inner surface of this arc-shaped structure easily forms vortices. The presence of these vortices not only allows some high-temperature flue gas to enter, reducing heat exchange with the pot bottom, but also affects the flow of secondary air, thereby indirectly reducing the flow velocity of the high-temperature flue gas and the heat exchange between the flue gas and the pot bottom. Furthermore, the upper and lower insulation layers of the energy-gathering pan support have gaps, which easily allow cold air to enter the support, lowering its temperature and reducing its heat collection and heat radiation efficiency. 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, there is provided an energy-gathering pot rack, which includes a first layer plate, a second layer plate, and a third layer plate, each of which is annular. The first layer plate includes a plurality of segments 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 segments is configured at its corresponding position to increase the speed and turbulence of the flue gas flow and change the flow direction of the flue gas; the inner end of the second layer plate is connected to the inner end of the first layer plate, and the outer end of the second layer plate is connected to the outer end of the first layer plate to enclose a first cavity; the inner end of the third layer plate is connected to the inner end of the second layer plate, and the outer end of the third layer plate is connected to the outer end of the first layer plate to enclose a second cavity.

[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, and the height of the first section gradually increases as it extends radially outward.

[0009] According to one embodiment of the present invention, the cross section of the second section 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.

[0010] According to an embodiment of the present invention, the cross section of the third section is wavy and extends in a plane perpendicular to the axial direction of the energy concentrating pot support.

[0011] According to an embodiment of the present invention, the cross section of the fourth section is in an inverted "U" shape, and the side wall thereof close to the third section extends obliquely.

[0012] According to one embodiment of the present invention, a first flange is provided on the outer periphery of the second layer plate, and the first flange is fitted and fixed to the outer side wall of the fourth section.

[0013] According to one embodiment of the present invention, the inner peripheries of the second layer plate and the third layer plate respectively have a second flange and a third flange that fit together, and the second flange and the third flange are respectively fixed to the first section.

[0014] 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.

[0015] A first positioning hole is provided on the first layer plate at a position corresponding to the first pot support, and a first positioning portion adapted to the first positioning hole is provided on the bottom of the first pot support.

[0016] The energy-gathering pot rack further comprises a plurality of second pot supports equidistantly arranged on the third layer plate, wherein the plurality of second pot supports respectively extend toward a side of the third layer plate away from the second layer plate.

[0017] A second positioning hole is provided on the third layer board at a position corresponding to the second pot support, and a second positioning portion adapted to the second positioning hole is provided in the middle of the second pot support.

[0018] According to another aspect of the present invention, a stove is provided. The stove includes the aforementioned energy-concentrating pot rack and a stove panel. The stove panel is provided with a combustion hole, and a liquid dripping pan is provided at a position corresponding to the combustion hole. The bottom of the second pot support of the energy-concentrating pot rack is connected to the liquid dripping pan.

[0019] An embodiment of the present invention has the following advantages or beneficial effects:

[0020] The energy-gathering pot rack of the present invention forms a closed first cavity between the first and second plates, radiating high-temperature heat upward to the upper surface of the energy-gathering pot rack, thereby increasing the temperature of the upper surface of the energy-gathering pot rack, thereby enhancing the intensity of the high-temperature heat radiated from the energy-gathering pot rack to the pot bottom, which is beneficial to improving thermal efficiency; a closed second cavity is formed between the second and third plates, which serves to isolate the cooling effect of external cold air on the inner surface of the energy-gathering pot rack, which is beneficial to increasing the temperature of the inner surface of the energy-gathering pot rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 A perspective view showing a cooker according to an exemplary embodiment of the present invention.

[0023] Figure 2 Show Figure 1 Exploded view of the cooktop shown.

[0024] Figure 3 A perspective view of a base assembly is shown according to an exemplary embodiment of the present invention.

[0025] Figure 4 Show Figure 3 Bottom view of the base assembly shown.

[0026] Figure 5 Show Figure 4A cross-sectional view of the base assembly and the diffuser assembly along line BB is shown.

[0027] Figure 6 Show Figure 4 A cross-sectional view of the base assembly and the spark distributor assembly taken along line CC is shown.

[0028] Figure 7 An exploded view of a spark distributor assembly is shown according to an exemplary embodiment of the present invention.

[0029] Figure 8 Show Figure 7 A top view of the dispenser body of the dispenser assembly is shown.

[0030] Figure 9 Show Figure 7 The ignition distributor assembly is shown along Figure 8 Sectional view along line AA.

[0031] Figure 10 An exploded view of an energy-gathering pot support according to an exemplary embodiment of the present invention is shown.

[0032] Figure 11 Show Figure 10 The cross-sectional view of the energy-gathering pot support is taken along the first pot support.

[0033] Figure 12 Show Figure 10 A partial cross-sectional view of the first layer of the energy-gathering pot rack is shown.

[0034] The description of the accompanying drawings is as follows:

[0035] 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

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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. Thus, 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 ( 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 to supply 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 on the right side of the base body 31, the outer ring air duct 33 is connected to the nozzle mounting seats 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 projections of the outer ring air duct 33 and the central air duct 34 on the base body 31 have overlapping parts, 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 is set at a position farther away 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. In this way, 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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 one 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 the side of the base body 31 shown in the figure. 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.

[0044] 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.

[0045] 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 positioned on 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 extending along the length of the base body 31, the first air channel 331 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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, blind holes 41 are provided at the bottom of the outer ring mixing chamber 431 for positioning. These blind holes 41 mate with the positioning posts 325 provided on the first and second outer ring nozzle seats 322 and 323, respectively.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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 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 support 6 on the side closest to the cookware. This strengthens the ability of the heat from the pot support 6 to radiate to the bottom of the cookware, 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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 support 6 (where the third section 6113 is located), 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 support 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%.

[0065] 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 (shown as the inner side) extend at an angle, thereby redirecting the flow of high-temperature flue gas, allowing more of the hot flue gas to flow upward along the side edges of the cookware, improving heat exchange efficiency. The fourth section 6114 is approximately 5 mm in height and 5 mm in width.

[0066] 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.

[0067] 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.

[0068] 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 the figure extends to support the pot on the energy-gathering pot support 6, and a gap is formed between the bottom of the pot and the energy-gathering pot support 6 for the high-temperature flue gas to flow. A plurality of second pot supports 67 are arranged in a circle at equal intervals on the third layer plate 63, and are respectively oriented towards the side of the third layer plate 63 away from the second layer plate 62 ( Figure 11 The energy-gathering pot holder 6 and the pot are supported on the cooktop 1. Specifically, when a liquid pan 12 is provided at the burner hole 11 of the cooktop 1, the second pot holder 67 can be used to support the energy-gathering pot holder 6 and the pot on the liquid pan 12, thereby indirectly supporting the energy-gathering pot holder 6 and the pot together on the cooktop 1. The separate first and second pot holders 66, 67 prevent the high-temperature heat from the first pot holder 66 of the energy-gathering pot holder 6 from being transferred to the second pot holder 67, causing heat loss. Furthermore, there are four first and second pot holders 66, 67, each approximately 3.5 mm thick. Reducing the thickness of the material used for these two pot holders also helps reduce costs and minimize heat loss.

[0069] Specifically, the first layer 61 is provided with a first positioning hole 612 at a position corresponding to the first pot support 66. The first pot support 66 is also provided with a first positioning hole 612 at the bottom thereof. A first positioning portion 661 is provided at the bottom thereof, which matches the first positioning hole 612. The first positioning portion 661 is inserted into the first positioning hole 612 and then welded to secure the pot. The third layer 63 is provided with a second positioning hole 632 at a position corresponding to the second pot support 67. A second positioning portion 671 is provided in the middle of the second pot support 67, which matches the second positioning hole 632. The second positioning portion 671 is inserted into the second positioning hole 632 and then welded to secure the pot.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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. An energy-gathering pot rack, characterized in that: The energy-gathering pot rack comprises: A first plate (61) in an annular shape, the first plate (61) comprising a plurality of segments (611) arranged from the inside out and each in an annular shape, each segment (611) having a cross-section of a different shape, so that each segment (611) 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; a second layer plate (62) in an annular shape, wherein the inner end of the second layer plate (62) is connected to the inner end of the first layer plate (61), and the outer end of the second layer plate (62) is connected to the outer end of the first layer plate (61), so as to enclose and form a first cavity (64); and a third layer plate (63) in an annular shape, wherein the inner end of the third layer plate (63) is connected to the inner end of the second layer plate (62), and the outer end of the third layer plate (63) is connected to the outer end of the first layer plate (61), so as to enclose and form a second cavity (65); 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 arc-shaped and protrudes toward the axis of the energy-gathering pot support, and 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 its height gradually increases as it extends outward from the outer end of the first section (6111); The cross section of the third section (6113) 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 (6114) is in the shape of an inverted "U", and the side wall thereof close to the side of the third section (6113) extends obliquely.

2. The energy-gathering pot support according to claim 1, characterized in that: The outer periphery of the second layer plate (62) is provided with a first flange (621), and the first flange (621) is fitted and fixed to the outer side wall of the fourth section (6114).

3. The energy-gathering pot support according to claim 1, characterized in that: 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, and the second flange (622) and the third flange (631) are respectively fixed to the first section (6111).

4. The energy-gathering pot support according to claim 1, characterized in that: The energy-gathering pot rack 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).

5. The energy-gathering pot support according to claim 4, characterized in that: A first positioning hole (612) is provided on the first layer plate (61) at a position corresponding to the first pot support (66), and a first positioning portion (661) adapted to the first positioning hole (612) is provided on the bottom of the first pot support (66).

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

7. The energy-gathering pot support according to claim 6, characterized in that: The third layer plate (63) is provided with a second positioning hole (632) at a position corresponding to the second pot support (67), and a second positioning portion (671) adapted to the second positioning hole (632) is provided in the middle of the second pot support (67).

8. A stove, characterized in that: include: The energy-gathering pot stand according to any one of claims 1 to 7; as well as A stove panel (1) is provided with a combustion hole (11), and a liquid receiving pan (12) is provided at a position corresponding to the combustion hole (11), and the bottom of the second pot support (67) of the energy-gathering pot rack is connected to the liquid receiving pan (12).

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