Gas distribution disc and combustor

Abstract

The invention discloses a gas distribution disc and a burner, the gas distribution disc comprises a first part, a second part and a gas distribution disc, the first part defines a first gas channel; the second part comprises an inner ring part, an outer ring part and a first connecting part, the inner ring part is connected with the first part, at least part of the outer ring part is located on the outer side of the inner ring part and arranged at intervals to define a first air channel, and the first connecting part is connected with the inner ring part and the outer ring part; a second gas channel is defined in the first connecting part, the second gas channel is provided with a first gas outlet located in the outer ring part and a first gas inlet located in the inner ring part, and the first part and the second part are integrally formed parts. According to the gas distribution disc, the whole gas distribution disc is an integrally-formed part, the structure of the gas distribution disc is simplified, the cost of the gas distribution disc is reduced, and the risk of gas leakage is reduced; and the first air channel is arranged, air can be provided for flames on the combustor, and the combustion efficiency of the combustor is improved.

Description

Technical Field

[0001] The invention relates to the field of kitchen equipment, in particular to a gas distribution plate and a burner. Background Art

[0002] A gas stove refers to a kitchen appliance that uses direct fire heating with gas fuels such as liquefied petroleum gas (liquid), artificial gas, and natural gas.

[0003] In the related art, the gas stove includes a gas distribution plate, which is suitable for diverting the gas to multiple fire covers to form a multi-ring flame. Through the multi-ring flame heating method, the heating area of ​​the heated pot body is increased and the heating uniformity of the heated pot body is improved.

[0004] With respect to the above technical solution, the structure of the gas distribution plate is relatively complex and the cost is relatively high. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a gas distribution plate, which is an integrally formed part, simplifies the structure of the gas distribution plate, reduces the cost of the gas distribution plate, and reduces the risk of gas leakage from the gas distribution plate; a first air channel is provided to provide air for the flame on the burner, thereby improving the combustion efficiency of the burner.

[0006] The present invention also provides a burner comprising the gas distribution plate.

[0007] According to an embodiment of the present invention, the gas distribution plate includes: a first part, the first part defines a first gas channel; a second part, the second part includes an inner ring part, an outer ring part and a first connecting part, the inner ring part is connected to the first part, at least part of the outer ring part is located on the outside of the inner ring part and is arranged at intervals to define a first air channel, the first connecting part is respectively connected to the inner ring part and the outer ring part, a second gas channel is defined in the first connecting part, the second gas channel has a first air outlet located in the outer ring part and a first air inlet located in the inner ring part, and the first part and the second part are an integrally formed part.

[0008] According to the embodiment of the present invention, the gas distributor plate is an integrally formed part, which simplifies the structure of the gas distributor plate, reduces the cost of the gas distributor plate, avoids installation gaps at the joints of components, reduces the risk of gas leakage from the gas distributor plate, and improves the safety of the burner; the inner ring part is connected to the first part, so that the first air inlet is located close to the first gas channel, which is convenient for the diversion of external gas, simplifies the structure of the gas distributor plate, and facilitates the installation of the gas distributor plate; a first air channel is provided between the outer ring part and the inner ring part, and the first air channel can introduce external air into between the outer fire cover and the inner fire cover, so as to provide air for the flames on the outer fire cover and / or the inner fire cover, thereby improving the combustion efficiency of the burner.

[0009] In some embodiments, in the thickness direction of the outer ring part, the outer ring part and the inner ring part are spaced apart, and the outer ring part is entirely located outside the inner ring part.

[0010] In some embodiments, the first connecting portion extends in a straight line so that two ends thereof are respectively connected to the outer ring portion and the inner ring portion.

[0011] In some embodiments, the number of the first connecting portions is plural and the first connecting portions are spaced apart along the circumference of the inner ring portion.

[0012] In some embodiments, the inner ring portion has a first surface for defining the first air channel, and an outer circumference of the first surface away from the first portion is provided with a guiding slope for guiding air toward the first air channel.

[0013] In some embodiments, the second gas outlet of the first gas channel and the first gas outlet have the same opening direction.

[0014] In some embodiments, the first portion is provided with a second air channel, and the second air channel is spaced apart from the first gas channel.

[0015] In some embodiments, the second air channel is in communication with the first air channel.

[0016] In some embodiments, the second air channel penetrates the first portion in a radial direction of the first portion.

[0017] In some embodiments, the second air channel has a first bottom wall, and the first bottom wall is not higher than a first surface of the inner ring portion for defining the first air channel.

[0018] In some embodiments, the first connecting portion is used to divide the space between the inner edge of the outer ring portion and the outer edge of the inner ring portion into a plurality of air holes; there are a plurality of second air channels, and the plurality of air holes and the plurality of second air channels are arranged in a one-to-one correspondence.

[0019] In some embodiments, a connection area of ​​the second air channel is smaller than an opening area of ​​the corresponding air hole.

[0020] In some embodiments, the first part includes a center circle, an outer circle and a second connecting part, the center circle is located on the inner side of the outer circle, the second connecting part is connected to the center circle and the outer circle respectively, the first gas channel is defined between the outer circumferential wall of the center circle, the inner circumferential wall of the outer circle and the second connecting part; the second connecting part is provided with the second air channel, the second air channel is provided with an air inlet located in the outer circle and an air outlet located in the center circle.

[0021] The burner according to an embodiment of the present invention includes: the gas distribution plate described in the above technical solution; a burner head structure, the burner head structure defines a gas accommodating cavity, the first gas channel and the second gas channel are both connected to the gas accommodating cavity; an inner fire cover, the first gas channel is connected to the inner fire cover; and an outer fire cover, the second gas channel is connected to the outer fire cover.

[0022] In some embodiments, the burner head structure includes: a main body, in which the gas containing cavity is arranged; a partition component, which is arranged on the main body and located in the gas containing cavity, and the partition component is used to divide the gas containing cavity into a plurality of cavities nested in sequence, and the adjacent cavities are connected, and the plurality of cavities are suitable for being connected with a plurality of fire covers; an ejector pipe, which is arranged on the main body, and the ejector pipe is respectively connected with the plurality of cavities.

[0023] In some embodiments, the inlet of each cavity is arranged opposite to the outlet end of the ejector tube.

[0024] In some embodiments, opposite side walls of the partition assembly respectively participate in defining adjacent cavities, and the partition assembly is provided with a communication opening communicating with adjacent cavities.

[0025] In some embodiments, the partition assembly includes a plurality of partition plates disposed at intervals, and the communication opening is formed between two adjacent partition plates.

[0026] In some embodiments, the ejector tube and the main body are integrally formed.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 is a schematic diagram of a burner according to an embodiment of the present invention;

[0030] Figure 2 is an exploded view of a burner according to an embodiment of the present invention;

[0031] Figure 3 Schematic diagram of a gas distribution plate according to an embodiment of the present invention Figure 1 ;

[0032] Figure 4 Schematic diagram of a gas distribution plate according to an embodiment of the present invention Figure 2 ;

[0033] Figure 5 is along Figure 4 The cross-sectional view made along the AA line;

[0034] Figure 6 is along Figure 4 The cross-sectional view made by the BB line;

[0035] Figure 7 is a top view of a gas distribution plate according to an embodiment of the present invention;

[0036] Figure 8 is a side view of a gas distribution plate according to an embodiment of the present invention;

[0037] Fig. 9 Schematic diagram of a furnace head structure according to an embodiment of the present invention Figure 1 ;

[0038] Fig.10 Schematic diagram of a furnace head structure according to an embodiment of the present invention Figure 2 ;

[0039] Fig.11 Schematic diagram of a furnace head structure according to an embodiment of the present invention Figure 3 ;

[0040] Fig.12 is along Fig.11 Section view made along the CC line.

[0041] Figure numerals: 1000, burner; 100, burner structure; 110, main body; 111, gas accommodating chamber; 112, first cavity; 113, second cavity; 114, first burner part; 115, second burner part; 116, third air channel; 120, partition assembly; 121, first baffle; 122, second baffle; 123, connecting opening; 130, ejector tube; 200, gas distribution plate; 210, first part; 211, first gas channel; 2111, second air inlet; 2112, second air outlet; 212, second air channel; 2121, first Bottom wall; 213, center circle; 214, outer circle; 215, second connecting part; 2151, air inlet; 2152, air outlet; 220, second part; 221, inner circle part; 2211, first surface; 2212, guide slope; 222, outer circle part; 223, first connecting part; 224, first air channel; 2241, air through hole; 225, second gas channel; 2251, first air outlet; 2252, first air inlet; 300, inner fire cover; 310, first fire hole; 400, outer fire cover; 410, third fire hole; 500, nozzle. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Reference below Figure 1-Figure 12 The gas distribution plate 200 according to the embodiment of the present invention is described.

[0046] Reference Figure 3 , Figure 4 and Figure 5 According to the embodiment of the present invention, the gas distribution plate 200 includes: a first part 210 and a second part 220, the first part 210 defines a first gas channel 211, the second part 220 includes an inner ring part 221, an outer ring part 222 and a first connecting part 223, the inner ring part 221 is connected to the first part 210, at least part of the outer ring part 222 is located on the outside of the inner ring part 221 and is arranged at intervals to define a first air channel 224, the first connecting part 223 is respectively connected to the inner ring part 221 and the outer ring part 222, a second gas channel 225 is defined in the first connecting part 223, the second gas channel 225 has a first gas outlet 2251 located in the outer ring part 222 and a first gas inlet 2252 located in the inner ring part 221, and the first part 210 and the second part 220 are integrally formed parts.

[0047] Reference Figure 1 , Figure 2 and Figure 3 In some specific application scenarios of the present invention, the gas distribution plate 200 is applied to the burner 1000, and the burner 1000 also includes an inner fire cover 300 and an outer fire cover 400. The inner fire cover 300 is installed on the first part 210, and the inner fire cover 300 is connected to the first gas channel 211. The first gas channel 211 can guide the gas to the inner fire cover 300, and the gas is suitable for burning at the inner fire cover 300 to form an inner ring flame; the outer fire cover 400 is installed on the outer ring part 222, and the outer fire cover 400 is connected to the first air outlet 2251 of the outer ring part 222. The gas can enter the second gas channel 225 through the first air inlet 2252 of the inner ring part 221, and then flow to the outer fire cover 400 through the first air outlet 2251. The gas is suitable for burning at the outer fire cover 400 to form an outer ring flame.

[0048] In the embodiment of the present invention, the first part 210 defines a first gas channel 211, the second part 220 defines a second gas channel 225, and the first part 210 and the second part 220 are integrally formed, which simplifies the structure of the gas distribution plate 200 and reduces the cost of the gas distribution plate 200. In addition, compared with the gas distribution plate 200 assembled from multiple parts in the related art, the gas distribution plate 200 in the embodiment of the present invention is an integrally formed part, which avoids installation gaps at the connection of parts, reduces the risk of gas leakage from the gas distribution plate 200, and improves the safety of the burner 1000.

[0049] Reference Figure 3 , Figure 5 and Figure 6 , the first part 210 is located at the center of the gas distribution plate 200 as a whole, so that the first part 210 is suitable for connecting with the inner fire cover 300. The inner ring part 221 is connected to the first part 210, so that the first air inlet 2252 is located near the first gas channel 211, which is convenient for the external gas diversion, and the simplified structure of the gas distribution plate 200 is convenient for the installation of the gas distribution plate 200. When the gas distribution plate 200 is working, the external gas of the gas distribution plate 200 is diverted at the connection between the inner ring part 221 and the first part 210, a part of the gas enters the first gas channel 211, and then flows to the inner fire cover 300, and the other part of the gas enters the first air inlet 2252 and then flows to the outer fire cover 400 through the second gas channel 225 and the first gas outlet 2251.

[0050] It should be noted that the outer ring portion 222 is at least partially located on the outside of the inner ring portion 221, which means that, in the projection plane perpendicular to the thickness direction of the outer ring portion 222, the inner ring portion 221 is formed as an annular structure, the outer ring portion 222 is also formed as an annular structure, and at least part of the outer ring portion 222 is located on the outside of the inner ring portion 221, so that the outer ring portion 222 can be located on the outside of the first portion 210, that is, the outer fire cover 400 connected to the outer ring portion 222 can be located on the outside of the inner fire cover 300, so that the burner 1000 can form a multi-ring flame, thereby improving the heating effect of the burner 1000.

[0051] It should also be noted that the inner ring portion 221 and the outer ring portion 222 may be circular ring structures, or rectangular ring structures, regular octagonal ring structures, or ring structures of other shapes, and the present invention is not limited thereto.

[0052] In addition, in the embodiment of the present invention, the outer ring portion 222 and the inner ring portion 221 are spaced apart to define a first air channel 224, so that air outside the gas distribution plate 200 can enter between the outer ring portion 222 and the first portion 210 through the first air channel 224, that is, the outside air enters between the outer fire cover 400 and the inner fire cover 300, providing air for the flames on the outer fire cover 400 and / or the inner fire cover 300, thereby improving the combustion efficiency of the burner 1000.

[0053] According to the embodiment of the present invention, the gas distribution plate 200 is an integrally formed part, which simplifies the structure of the gas distribution plate 200, reduces the cost of the gas distribution plate 200, avoids installation gaps at the connection between components, reduces the risk of gas leakage from the gas distribution plate 200, and improves the safety of the burner 1000; the inner ring part 221 is connected to the first part 210, so that the first air inlet 2252 is located near the first gas channel 211, which is convenient for the external gas diversion, simplifies the structure of the gas distribution plate 200, and facilitates the installation of the gas distribution plate 200; a first air channel 224 is provided between the outer ring part 222 and the inner ring part 221, and the first air channel 224 can introduce external air into between the outer fire cover 400 and the inner fire cover 300, and provide air for the flames on the outer fire cover 400 and / or the inner fire cover 300, thereby improving the combustion efficiency of the burner 1000.

[0054] Reference Figure 5 In some specific embodiments, the first part 210 defines a first gas channel 211, and the first part 210 is also provided with a second air inlet 2111 and a second air outlet 2112 connected to the first gas channel 211, and the second air inlet 2111 is located close to the first air inlet 2252 to facilitate the diversion of external gas to the first air inlet 2252 and the second air inlet 2111.

[0055] The opening directions of the second air outlet 2112 and the first air outlet 2251 are the same, so that the second air outlet 2112 is connected to the inner fire cover 300, and the first air outlet 2251 is connected to the outer fire cover 400, thereby improving the assembly efficiency of the gas distribution plate 200 and the inner fire cover 300 and the outer fire cover 400.

[0056] In some embodiments, in the thickness direction of the outer ring portion 222 , the outer ring portion 222 and the inner ring portion 221 are spaced apart, and the outer ring portion 222 is entirely located outside the inner ring portion 221 .

[0057] In the above technical solution, in the thickness direction of the outer ring, the outer ring part 222 and the inner ring part 221 are spaced apart, so that the air on the peripheral side of the gas distribution plate 200 can enter between the outer fire cover 400 and the inner fire cover 300 through the first air channel 224 between the outer ring part 222 and the inner ring part 221, thereby improving the combustion efficiency of the burner 1000.

[0058] The outer ring part 222 is located outside the inner ring part 221 as a whole, which means that in the projection plane perpendicular to the thickness direction of the outer ring part 222, the outer ring part 222 is located outside the inner ring part 221 as a whole, further increasing the distance between the outer ring part 222 and the first part 210, further increasing the distance between the outer fire cover 400 and the inner fire cover 300, improving the uniformity of heating of the heated pot body, and improving the heating effect of the burner 1000. In addition, the flow area of ​​the first air channel 224 is increased, the air volume in the first air channel 224 is increased, and the combustion efficiency of the burner 1000 is further improved.

[0059] In some embodiments, the first connection portion 223 extends in a straight line so that its two ends are connected to the outer ring portion 222 and the inner ring portion 221 respectively.

[0060] In the embodiment of the present invention, the first connecting portion 223 extends in a straight line, which simplifies the structure of the first connecting portion 223, reduces the difficulty of opening the mold of the gas distribution plate 200, and reduces the cost of the gas distribution plate 200. The first connecting portion 223 extends in a straight line, which also shortens the length of the second gas channel 225 and improves the gas supply efficiency of the second gas channel 225.

[0061] Reference Figure 3 , Figure 4 and Figure 7 In some embodiments, the first connecting portion 223 is multiple and is arranged at intervals along the circumference of the inner ring portion 221.

[0062] In an embodiment of the present invention, the gas in the inner circle part 221 can enter the outer circle part 222 through multiple first connecting parts 223, thereby improving the circulation efficiency of the gas in the second part 220, and the multiple first connecting parts 223 are arranged at circumferential intervals along the inner circle part 221, so that the gas is more evenly distributed in the outer circle part 222, further improving the combustion efficiency of the flame at the outer fire cover 400.

[0063] Reference Figure 3 and Figure 6 In some embodiments, the inner ring portion 221 has a first surface 2211 for defining a first air channel 224 , and an outer peripheral edge of the first surface 2211 away from the first portion 210 is provided with a guide slope 2212 for guiding air toward the first air channel 224 .

[0064] Through the above technical solution, the efficiency of air entering the first air channel 224 is improved, that is, the combustion efficiency of the burner 1000 is improved.

[0065] In some embodiments, the first part 210 is provided with a second air channel 212, and the second air channel 212 is spaced apart from the first gas channel 211. The second air channel 212 is suitable for providing air for the flame on the inner fire cover 300, thereby improving the combustion efficiency of the flame on the inner fire cover 300 and further improving the heating effect of the burner 1000.

[0066] In some further embodiments, the second air channel 212 is in communication with the first air channel 224 .

[0067] That is to say, the air in the first air channel 224 can be diverted to the second air channel 212, and then the second air channel 212 provides air for the flame on the inner fire cover 300. In the embodiment of the present invention, the second air channel 212 guides air in a simple manner, simplifies the structure of the air distribution plate 200, and reduces the cost of the air distribution plate 200.

[0068] In some specific embodiments, the second air channel 212 penetrates the first portion 210 in the radial direction of the first portion 210, so that the second air channel 212 can be connected to the first air channel 224. In the embodiment of the present invention, the second air channel 212 and the first air channel 224 are connected in a simple manner, which simplifies the structure of the gas distribution plate 200 and reduces the cost of the gas distribution plate 200.

[0069] It should be noted that, in the embodiment of the present invention, the first portion 210 is configured as a circular ring structure, and the second air channel 212 extends along the radial direction of the first portion 210 and penetrates the first portion 210, so that the second air channel 212 is connected to the first air channel 224. In other embodiments, the first portion 210 may also be a rectangular ring structure, a regular octagonal ring structure, or a ring structure of other shapes. In such embodiments, the extension direction of the second air channel 212 is perpendicular to the thickness direction of the outer ring portion 222 and penetrates the first portion 210, so that the second air channel 212 is connected to the first air channel 224.

[0070] In some application scenarios, when the burner 1000 is working, a part of the gas flows to the inner fire cover 300 through the first part 210 and burns on the inner fire cover 300, and a part of the gas flows to the outer fire cover 400 through the second part 220 and burns on the outer fire cover 400. When the flame burns, the air above the burner 1000 is heated, and the heated air flows upward, and attracts the air around the burner 1000 to flow toward the positions of the inner fire cover 300 and the outer fire cover 400. Part of the air enters the first air channel 224 through the gap between the inner ring part 221 and the outer ring part 222, and the air in the first air channel 224 is divided into two parts. Part of the air directly flows upward to between the outer fire cover 400 and the inner fire cover 300 to provide air for the flames on the outer fire cover 400 and / or the inner fire cover 300, and the other part of the air is divided into the second air channel 212 to provide air for the flames on the inner fire cover 300, thereby effectively improving the combustion efficiency of the burner 1000.

[0071] In some embodiments, the second air channel 212 has a first bottom wall 2121 , and the first bottom wall 2121 is not higher than the first surface 2211 of the inner ring portion 221 for defining the first air channel 224 .

[0072] Through the above technical solution, the air in the first air channel 224 can be directly diverted to the second air channel 212, thereby improving the smoothness of air flow.

[0073] In some specific embodiments, the first bottom wall 2121 is flush with the first surface 2211 , which facilitates the mold opening of the gas distribution plate 200 and reduces the difficulty of integrally forming the gas distribution plate 200 .

[0074] Reference Figure 3 and Figure 6 In some embodiments, the first connecting portion 223 is used to divide the space between the inner edge of the outer ring portion 222 and the outer edge of the inner ring portion 221 into a plurality of air holes 2241, and the air holes 2241 are connected to the first air channel 224. The second air channel 212 is also provided with a plurality of air holes 2241 and the plurality of second air channels 212 are provided in a one-to-one correspondence.

[0075] The air on the periphery of the air distribution plate 200 is suitable for entering the first air channel 224 through multiple air holes 2241. In the embodiment of the present invention, multiple air holes 2241 and multiple second air channels 212 are arranged in a one-to-one correspondence, so that the air entering the first air channel 224 through the air holes 2241 can be easily diverted to the corresponding second air channel 212, thereby improving the air flow efficiency.

[0076] Reference Figure 6 , Figure 7 and Figure 8In some specific embodiments, the communication area of ​​the second air channel 212 is smaller than the opening area of ​​the corresponding air hole 2241 .

[0077] In the embodiment of the present invention, the connection area of ​​the second air channel 212 is smaller than the opening area of ​​the corresponding air hole 2241, so that the first air channel 224 and the second air channel 212 can be pulled out in an integrated manner during the production process of the air distribution plate 200, thereby reducing the difficulty of mold opening of the air distribution plate 200.

[0078] Reference Figure 3 , Figure 5 and Figure 6 In some specific embodiments, the first part 210 includes a center ring 213, an outer ring 214, and a second connecting part 215. The center ring 213 is located inside the outer ring 214, and the second connecting part 215 is connected to the center ring 213 and the outer ring 214 respectively. A first gas channel 211 is defined between the outer circumferential wall of the center ring 213, the inner circumferential wall of the outer ring 214, and the second connecting part 215. A second air channel 212 is provided in the second connecting part 215. The second air channel 212 is provided with an air inlet 2151 located in the outer ring 214 and an air outlet 2152 located in the center ring 213.

[0079] In an embodiment of the present invention, when the gas stove is working, the air around the burner 1000 can enter the first air channel 224, and the air in the first air channel 224 is divided into two parts. One part of the air flows directly upward to between the outer fire cover 400 and the inner fire cover 300 to provide air for the flame on the outer fire cover 400 and / or the inner fire cover 300, and the other part of the air is divided into the second air channel 212 through the air inlet 2151. The air in the second air channel 212 enters the space radially inside the center circle 213 through the air outlet 2152, and then flows upward to the inner fire cover 300 to provide air for the flame on the inner fire cover 300.

[0080] It should be understood that, in some embodiments, the air below the first part 210 can also flow directly upward to the inner side of the inner fire cover 300 through the space radially inner side of the center circle 213, providing air for the flame on the inner fire cover 300, further improving the combustion efficiency of the burner 1000.

[0081] Reference Figure 1 , Figure 2 and Figure 3The burner 1000 according to the embodiment of the present invention comprises: a gas distribution plate 200, a burner head structure 100, an inner fire cover 300 and an outer fire cover 400, wherein the gas distribution plate 200 is the gas distribution plate 200 in the above technical solution, the burner head structure 100 defines a gas accommodating cavity 111, a first gas channel 211 and a second gas channel 225 are both connected to the gas accommodating cavity 111, the first gas channel 211 is also connected to the inner fire cover 300, and the second gas channel 225 is also connected to the outer fire cover 400.

[0082] When the burner 1000 is working, the gas in the gas containing chamber 111 is diverted to the first gas channel 211 and the second gas channel 225. The first gas channel 211 can guide the gas to the inner fire cover 300, and the gas is suitable for burning at the inner fire cover 300 to form an inner ring flame; the second gas channel 225 can guide the gas to the outer fire cover 400, and the gas is suitable for burning at the outer fire cover 400 to form an outer ring flame.

[0083] According to the burner 1000 of the embodiment of the present invention, the gas distribution plate 200 is an integrally formed part, which simplifies the structure of the gas distribution plate 200, reduces the cost of the gas distribution plate 200, avoids installation gaps at the connection between components, reduces the risk of gas leakage from the gas distribution plate 200, and improves the safety of the burner 1000; the inner ring part 221 is connected to the first part 210, so that the first air inlet 2252 is located near the first gas channel 211, which is convenient for the gas diversion in the gas containing cavity 111, and the simplified structure of the gas distribution plate 200 facilitates the assembly of the gas distribution plate 200 and the burner head structure 100; a first air channel 224 is provided between the outer ring part 222 and the inner ring part 221, and the first air channel 224 can introduce external air into between the outer fire cover 400 and the inner fire cover 300, and provide air for the flames on the outer fire cover 400 and / or the inner fire cover 300, thereby improving the combustion efficiency of the burner 1000.

[0084] In some embodiments, a plurality of first fire holes 310 are disposed on the inner fire cover 300 , and the plurality of first fire holes 310 are spaced apart along the circumference of the inner fire cover 300 , and each first fire hole 310 extends obliquely toward the center direction of the inner fire cover 300 .

[0085] When the burner 1000 is working, the gas in the first gas channel 211 passes through the first fire holes 310 and then burns on the inner fire cover 300. Because each first fire hole 310 extends obliquely toward the center direction of the inner fire cover 300, the flame on the inner fire cover 300 forms a cohesive flame, thereby improving the heating effect of the burner 1000.

[0086] It should be understood that the fire holes on the inner fire cover 300 may also be arranged upward, or in a direction away from the center of the inner fire cover 300, and the present invention is not limited to this.

[0087] In other embodiments, a plurality of first fire holes 310 are provided on the radial inner side of the inner fire cover 300, and the plurality of first fire holes 310 are distributed at intervals along the circumference of the inner fire cover 300, and each first fire hole 310 extends obliquely toward the center direction of the inner fire cover 300; a plurality of second fire holes are provided on the radial outer side of the inner fire cover 300, and the plurality of second fire holes are distributed at intervals along the circumference of the inner fire cover 300.

[0088] When the burner 1000 is working, a part of the gas in the first gas channel 211 passes through the first fire hole 310 and burns on the radial inner side of the inner fire cover 300 to form a ring of flame, and another part of the gas in the first gas channel 211 passes through the second fire hole and burns on the radial outer side of the inner fire cover 300 to form another ring of flame. In other words, two rings of flame can be formed on the inner fire cover 300. It should be understood that the fire holes on the inner fire cover 300 can also be arranged in other ways so that multiple rings of flame can be formed on the inner fire cover 300, and the present invention is not limited to this.

[0089] In some embodiments, a plurality of third fire holes 410 are provided on the outer fire cover 400 , and the plurality of third fire holes 410 are spaced apart along the circumference of the outer fire cover 400 , and each third fire hole 410 extends obliquely toward the center direction of the outer fire cover 400 .

[0090] When the burner 1000 is working, the gas in the first gas channel 211 passes through the third fire holes 410 and then burns on the outer fire cover 400. Because each third fire hole 410 extends obliquely toward the center direction of the outer fire cover 400, the flame on the outer fire cover 400 forms a cohesive flame, thereby improving the heating effect of the burner 1000.

[0091] It should be understood that the fire holes on the outer fire cover 400 may also be arranged upward, or in a direction away from the center of the outer fire cover 400, and the present invention is not limited to this.

[0092] In other embodiments, a plurality of third fire holes 410 are provided on the radial inner side of the outer fire cover 400, and the plurality of third fire holes 410 are distributed at intervals along the circumference of the outer fire cover 400, and each third fire hole 410 extends obliquely toward the center direction of the outer fire cover 400; a plurality of fourth fire holes are provided on the radial outer side of the outer fire cover 400, and the plurality of fourth fire holes are distributed at intervals along the circumference of the outer fire cover 400.

[0093] When the burner 1000 is working, a part of the gas in the second gas channel 225 passes through the third fire hole 410 and burns on the radial inner side of the outer fire cover 400 to form a ring of flame, and another part of the gas in the second gas channel 225 passes through the fourth fire hole and burns on the radial outer side of the outer fire cover 400 to form another ring of flame. That is to say, two rings of flame can be formed on the outer fire cover 400. It should be understood that the fire holes on the outer fire cover 400 can also be arranged in other ways so that multiple rings of flame can be formed on the outer fire cover 400, and the present invention is not limited to this.

[0094] Reference Figure 2 , Fig. 9 and Fig.10 In some embodiments, the burner structure 100 includes: a main body 110, a partition assembly 120 and an ejector pipe 130. A gas receiving chamber 111 is provided in the main body 110. The partition assembly 120 is provided in the main body 110 and is located in the gas receiving chamber 111. The partition assembly 120 is used to divide the gas receiving chamber 111 into a plurality of sequentially nested chambers. Adjacent chambers are connected. The plurality of chambers are suitable for connecting with a plurality of fire covers. The ejector pipe 130 is provided in the main body 110 and is connected with the plurality of chambers respectively.

[0095] It should be noted that the multiple cavities nested in sequence refer to: the partition assembly 120 divides the gas containing cavity 111 into two cavities, the two cavities are respectively a first cavity 112 and a second cavity 113, the second cavity 113 is outermost in the first cavity 112, the first cavity 112 is connected to the inner fire cover through the first gas channel, and the second cavity 113 is connected to the outer fire cover through the second gas channel.

[0096] In some application scenarios, the nozzle 500 of the gas stove is arranged opposite to the inlet end of the ejector tube 130, and the multiple cavities are respectively connected to the multiple fire covers, and the multiple cavities correspond to the multiple fire covers one by one, each cavity is connected to a fire cover, and each fire cover is provided with a fire hole. Because the multiple cavities are nested in sequence, the multiple fire covers are also arranged to be nested in sequence.

[0097] When the gas stove is working, the nozzle 500 of the gas stove sprays gas to the inlet end of the ejector tube 130, and the gas drives the air around the ejector tube 130 into the ejector tube 130, and then enters the gas receiving chamber 111 through the outlet end of the ejector tube 130. Because the ejector tube 130 is connected with multiple cavities respectively, the gas in the ejector tube 130 is discharged from the outlet end and then divided into multiple cavities, and the gas in each cavity flows to the corresponding fire cover and is discharged from the fire hole of the fire cover. After the gas is discharged from the fire hole, it burns to form a flame, and a multi-ring flame is formed on the multiple fire covers nested in sequence.

[0098] It should be noted that the ejector tube 130 is respectively connected to a plurality of cavities, and the ejector tube 130 may be directly connected to all of the plurality of cavities, or the ejector tube 130 may be directly connected to some of the cavities and indirectly connected to another part of the cavities. For example, in some embodiments, the partition assembly 120 separates the gas containing cavity 111 into two cavities, the two cavities being a first cavity 112 and a second cavity 113, and the second cavity 113 is sheathed in the first cavity 112. The ejector tube 130 is directly connected to the first cavity 112, and the ejector tube 130 is also directly connected to the second cavity 113. In the embodiment of the present invention, the gas in the ejector tube 130 is directly diverted to the first cavity 112 and the second cavity 113 after being discharged from the outlet end.

[0099] In other embodiments, the partition assembly 120 divides the gas containing chamber 111 into two chambers, the two chambers are respectively a first chamber 112 and a second chamber 113, and the second chamber 113 is placed outside the first chamber 112. The ejector tube 130 is directly connected to the second chamber 113, and the second chamber 113 is connected to the first chamber 112, so that the ejector tube 130 is connected to the first chamber 112 at intervals. In the embodiment of the present invention, the gas in the ejector tube 130 flows to the second chamber 113 after being discharged from the outlet end, and then flows from the second chamber 113 to the first chamber 112.

[0100] As long as the ejector tube 130 is connected to the multiple cavities respectively. That is to say, the gas in the ejector tube 130 can be directly distributed to the multiple cavities after being discharged from the outlet end, or the gas in the ejector tube 130 can be discharged from the outlet end and enter the cavity directly connected to the ejector tube 130, and then be distributed to the cavity indirectly connected to the ejector tube 130, or other flow modes can be used, as long as the gas can be distributed in multiple cavities.

[0101] In an embodiment of the present invention, the ejector tube 130 is used to guide external gas to the main body 110, and the main body 110 is used to divert the gas to multiple fire covers. In an embodiment of the present invention, multiple cavities are arranged in a sequentially nested manner and adjacent cavities are connected, so that the multiple cavities are interconnected. Therefore, the user only needs to adjust the amount of gas entering the ejector tube 130 to synchronously adjust the amount of gas in multiple cavities, thereby achieving synchronous adjustment of multi-ring flames and improving the heating effect of the burner 1000.

[0102] Reference Fig. 9 , Fig.11 and Fig.12 In some embodiments, the inlet of each cavity is arranged opposite to the outlet end of the ejector tube 130 .

[0103] In the embodiment of the present invention, the inlet of each cavity is arranged directly opposite to the outlet end of the ejector tube 130, so that the gas discharged from the outlet end of the ejector tube can be directly diverted to multiple cavities, further improving the uniformity of the gas amount distributed in the multiple cavities and further improving the heating effect of the burner 1000.

[0104] In some embodiments, opposite side walls of the partition component 120 respectively contribute to defining adjacent cavities, and the partition component 120 is provided with a communication opening 123 that communicates with the adjacent cavities.

[0105] In the embodiment of the present invention, the communication mode between adjacent cavities is simple, and it is sufficient to provide a communication opening 123 on the partition assembly 120 , thereby simplifying the furnace head structure 100 and reducing the cost of the furnace head structure 100 .

[0106] In some embodiments, a portion of the partition assembly 120 is spaced apart from the outlet end of the ejector tube 130 to define a communication opening 123 .

[0107] Through the above technical solution, the gas discharged from the outlet end of the ejector tube 130 can be directly diverted to the connecting opening 123, so that the gas discharged from the outlet end of the ejector tube 130 can be directly diverted to multiple cavities, thereby improving the uniformity of the gas amount distributed in the multiple cavities, improving the heating effect of the burner 1000, and at the same time simplifying the burner head structure 100 and reducing the cost of the burner head structure 100.

[0108] In some specific embodiments, the partition component 120 is formed in a ring shape, and the multiple cavities include a first cavity 112 and a second cavity 113 . The first cavity 112 is located on the inner side of the partition component 120 , and the second cavity 113 is located on the outer side of the partition component 120 .

[0109] In the embodiment of the present invention, the furnace head structure 100 is only provided with the first cavity 112 and the second cavity 113 , which simplifies the furnace head structure 100 and reduces the cost of the furnace head structure 100 .

[0110] In some specific embodiments, the partition assembly 120 includes a plurality of partition plates disposed at intervals, and the above-mentioned communication opening 123 is formed between two adjacent partition plates.

[0111] In the embodiment of the present invention, the partition assembly 120 has a simple structure, which further reduces the cost of the furnace head structure 100.

[0112] In some embodiments, the ejector tube 130 and the main body 110 are integrally formed.

[0113] In the embodiment of the present invention, the ejector tube 130 and the main body 110 are integrally formed, that is, the installation step of fixing the ejector tube 130 to the main body 110 is omitted, thereby improving the production efficiency of the burner head structure 100 and reducing the cost of the burner head structure 100; there is no need to use fasteners to connect the ejector tube 130 and the main body 110, thereby reducing the material used in the burner head structure 100, further reducing the cost of the burner head structure 100, and reducing carbon emissions during the production process of the burner head structure 100; and there is no gap between the integrally formed ejector tube 130 and the main body 110, thereby avoiding the risk of gas leakage from the gap between the ejector tube 130 and the main body 110, thereby improving the safety of the burner head structure 100.

[0114] In some embodiments, a plurality of ejector tubes 130 are provided, and the plurality of ejector tubes 130 are arranged at intervals.

[0115] In the embodiment of the present invention, the burner head structure 100 is provided with a plurality of ejector tubes 130 , that is, the gas can enter the gas containing cavity 111 through the plurality of ejector tubes 130 , thereby increasing the flow velocity of the gas and improving the heating effect of the burner 1000 .

[0116] In some application scenarios, the gas stove is provided with a plurality of nozzles 500, and the plurality of nozzles 500 correspond one to one with the plurality of ejector tubes 130, and each nozzle 500 is arranged opposite to the inlet end of the corresponding ejector tube 130, and the plurality of nozzles 500 are connected to the same gas pipeline. When the gas stove is working, the gas in the gas pipeline is diverted to the plurality of nozzles 500, and each nozzle 500 sprays the gas to the corresponding ejector tube 130, and the gas in the plurality of ejector tubes 130 enters the gas receiving cavity 111 and is diverted to the plurality of cavities. In the embodiment of the present invention, the user can adjust the total amount of gas entering the gas receiving cavity 111 by adjusting the opening of the gas pipeline, thereby adjusting the amount of gas in each cavity, and realizing the synchronous adjustment of the multi-ring flame.

[0117] In some embodiments, the partition assembly 120 is provided with a connecting opening 123 connecting adjacent cavities. There are multiple connecting openings 123 , and the multiple connecting openings 123 correspond one-to-one to the multiple ejector tubes 130 . The connecting openings 123 are arranged near the outlet ends of the corresponding ejector tubes 130 .

[0118] Through the above technical solution, the gas discharged from each ejector tube 130 can be directly diverted to multiple cavities, further improving the uniformity of the distribution of the gas volume in each cavity and further improving the heating effect of the burner 1000.

[0119] In some embodiments, the outlet ends of at least some of the multiple ejector tubes 130 have openings facing the same direction.

[0120] Because the multiple cavities are formed in a ring shape, the openings of the outlet ends of some ejector tubes 130 are oriented in the same direction, which increases the turbulence of the gas and air in the multiple cavities, improves the uniformity of the mixing of the gas and air, and improves the heating effect of the burner 1000.

[0121] In some specific embodiments, two ejector tubes 130 are provided, the two ejector tubes 130 are arranged at an interval, and the two ejector tubes 130 are arranged in parallel, so that the openings of the outlet ends of the two ejector tubes 130 face the same direction.

[0122] In the embodiment of the present invention, the furnace head structure 100 has a simple structure, which reduces the cost of the furnace head structure 100.

[0123] Reference Fig. 9 , Fig.10 and Fig.11 In some embodiments, in a projection of the main body 110 in the height direction, the main body 110 overlaps with at least a portion of the ejector tube 130 .

[0124] Through the above technical solution, while ensuring the length of the ejector tube 130 , the space occupied by the entire furnace head structure 100 is reduced, which is conducive to the miniaturization of the furnace head structure 100 .

[0125] In some specific embodiments, in a direction perpendicular to the height direction of the main body 110, the main body 110 includes a first burner portion 114 and a second burner portion 115 that are connected, and the first burner portion 114 and the second burner portion 115 jointly define a gas containing chamber 111, and an inner bottom wall of the second burner portion 115 is higher than an inner bottom wall of the first burner portion 114, and an outlet end of the ejector tube 130 is located at the lower side of the second burner portion 115 and is connected to the first burner portion 114.

[0126] In the embodiment of the present invention, the outlet end of the ejector tube 130 can be directly connected to the inner wall of the first burner head portion 114, instead of the outlet end of the ejector tube 130 extending into the interior of the gas containing cavity 111, thereby reducing the difficulty of mold opening of the burner head structure 100 and facilitating the one-piece molding of the burner head structure 100.

[0127] In some specific embodiments, the partition assembly 120 includes a first partition 121 and a second partition 122, wherein the first partition 121 is disposed on the inner bottom wall of the first burner portion 114, and the second partition 122 is disposed on the inner bottom wall of the second burner portion 115. The first partition 121 and the second partition 122 divide the gas receiving chamber 111 into a first cavity 112 and a second cavity 113, wherein the first cavity 112 is located inside the first partition 121 and the second partition 122, and the second cavity 113 is located outside the first partition 121 and the second partition 122, and the gap between the first partition 121 and the second partition 122 forms a communication opening 123.

[0128] In the embodiment of the present invention, the furnace head structure 100 has a simple structure, which reduces the cost of the furnace head structure 100.

[0129] Reference Figure 1 , Figure 2 and Fig. 9 In some embodiments, the top of the main body 110 is open, and the top of the main body 110 is suitable for connecting multiple fire covers. In some application scenarios, a gas distribution plate is provided between the main body 110 and the multiple fire covers, and the main body 110 is connected to the multiple fire covers through the gas distribution plate. The top of the main body 110 is connected to the gas distribution plate, and the gas distribution plate closes the opening at the top of the main body 110 to prevent gas leakage. The gas distribution plate is provided with multiple gas channels, and the multiple gas channels are connected to the multiple cavities one by one, and each cavity is connected to the corresponding fire cover through the corresponding gas channel.

[0130] In some embodiments, the main body 110 is further provided with a third air channel 116. In the height direction, the third air channel 116 runs through the main body 110. The gas containing cavity 111 is spaced apart from the third air channel 116. The third air channel 116 is connected to the space radially inside the center circle.

[0131] Through the above technical solution, the third air channel 116 is suitable for guiding the air at the bottom of the main body 110 to the inner fire cover, providing secondary air for the combustion of the flame, thereby improving the heating effect of the burner 1000.

[0132] In some specific embodiments, the gas containing chamber 111 is disposed around the third air passage 116 .

[0133] When the burner 1000 is working, the flame of the outer ring can directly contact the outside air, while the flame of the inner ring has difficulty in obtaining secondary air due to the obstruction of the flame of the outer ring. In the embodiment of the present invention, the gas containing chamber 111 is arranged around the third air channel 116, so that the third air channel 116 can provide secondary air for the flame of the inner ring, thereby effectively improving the heating effect of the burner 1000.

[0134] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0135] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gas distribution plate, characterized in that: include: a first portion, the first portion defining a first gas passage; The second part includes an inner ring part, an outer ring part and a first connecting part, the inner ring part is connected to the first part, at least part of the outer ring part is located on the outside of the inner ring part and is arranged at intervals to define a first air channel, the first connecting part is respectively connected to the inner ring part and the outer ring part, a second gas channel is defined in the first connecting part, the second gas channel has a first air outlet located in the outer ring part and a first air inlet located in the inner ring part, and the first part and the second part are an integrally formed part.

2. The gas distribution plate according to claim 1, characterized in that: The outer ring portion and the inner ring portion are spaced apart in a thickness direction of the outer ring portion, and the outer ring portion is entirely located outside the inner ring portion.

3. The gas distribution plate according to claim 2, characterized in that: The first connection portion extends in a straight line so that both ends thereof are connected to the outer ring portion and the inner ring portion, respectively.

4. The gas distribution plate according to claim 1, characterized in that: The first connecting parts are in plurality and are arranged at intervals along the circumferential direction of the inner ring part.

5. The gas distribution plate according to claim 1, characterized in that: The inner ring portion has a first surface for defining the first air channel, and an outer circumference of the first surface away from the first portion is provided with a guide slope for guiding air toward the first air channel.

6. The gas distribution plate according to claim 1, characterized in that: The second gas outlet of the first gas channel and the first gas outlet have the same opening direction.

7. The gas distribution plate according to any one of claims 1 to 6, characterized in that: The first part is provided with a second air channel, and the second air channel is spaced apart from the first gas channel.

8. The gas distribution plate according to claim 7, characterized in that: The second air passage is in communication with the first air passage.

9. The gas distribution plate according to claim 8, characterized in that: The second air passage penetrates the first portion in a radial direction of the first portion.

10. The gas distribution plate according to claim 9, characterized in that: The second air passage has a first bottom wall which is not higher than a first surface of the inner ring portion for defining the first air passage.

11. The gas distribution plate according to claim 8, characterized in that: The first connecting portion is used to divide the space between the inner edge of the outer ring portion and the outer edge of the inner ring portion into a plurality of air holes; There are a plurality of the second air channels, and the plurality of air holes and the plurality of the second air channels are arranged in one-to-one correspondence.

12. The gas distribution plate according to claim 11, characterized in that: The communication area of ​​the second air channel is smaller than the opening area of ​​the corresponding air through hole.

13. The gas distribution plate according to any one of claims 9 to 12, characterized in that: The first part includes a central ring, an outer ring and a second connecting part, wherein the central ring is located inside the outer ring, the second connecting part is connected to the central ring and the outer ring respectively, and the first gas channel is defined between the outer peripheral wall of the central ring, the inner peripheral wall of the outer ring and the second connecting part; The second connecting portion is provided with the second air passage, and the second air passage is provided with an air inlet located at the outer circle and an air outlet located at the central circle.

14. A burner, characterized in that: include: The gas distribution plate according to any one of claims 1 to 13; A burner head structure, wherein the burner head structure defines a gas accommodating cavity, and the first gas channel and the second gas channel are both in communication with the gas accommodating cavity; An inner fire cover, wherein the first gas passage is in communication with the inner fire cover; The outer fire cover, the second gas channel is connected to the outer fire cover.

15. The burner according to claim 14, characterized in that The furnace head structure comprises: A main body, wherein the gas containing chamber is provided in the main body; A partition assembly, the partition assembly is arranged on the main body and located in the gas containing chamber, the partition assembly is used to divide the gas containing chamber into a plurality of chambers nested in sequence, the adjacent chambers are connected, and the plurality of chambers are suitable for being connected with a plurality of fire covers; An ejector tube is arranged on the main body and is communicated with the plurality of cavities respectively.

16. The burner according to claim 15, characterized in that The inlet of each cavity is arranged opposite to the outlet end of the ejector tube.

17. The burner according to claim 15, characterized in that The opposite side walls of the partition assembly respectively participate in defining the adjacent cavities, and the partition assembly is provided with a communication opening communicating with the adjacent cavities.

18. The burner according to claim 17, characterized in that The partition assembly includes a plurality of partition plates arranged at intervals, and the communication opening is formed between two adjacent partition plates.

19. The burner according to claim 15, characterized in that The ejector tube and the main body are integrally formed.

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