Gas distribution disc, burner and gas stove

Abstract

The application relates to the technical field of gas stoves, and discloses a gas distribution disc, which comprises a lower gas distribution disc provided with one or more first gas inlet subareas and an upper gas distribution disc provided with gas distribution channels located at different ring lines from inside to outside, and the gas distribution channels of some or all of the non-adjacent ring lines are communicated with the one or more first gas inlet subareas. According to the gas distribution disc, the gas entering the lower gas distribution disc from one gas inlet channel can be distributed to the respective fire hole rings of the gas distribution channels on different ring lines on the upper gas distribution disc through the arrangement of the first gas inlet subareas on the lower gas distribution disc. The ring lines of the fire hole rings corresponding to the same gas inlet channel are located at different inner and outer heating positions, so that the adjustment of the gas flow of a single gas inlet channel can simultaneously realize the synchronous adjustment of the heating power of the inner and outer different heating positions, thereby improving the heating uniformity and reducing the operation complexity. The application further discloses a burner and a gas stove.

Description

Technical Field

[0001] This application relates to the field of gas stove technology, such as a gas distribution plate, burner and gas stove. Background Technology

[0002] Today, gas stoves, as a convenient and quick cooking appliance, have become widespread in the kitchens of countless households. Gas stove burners utilize liquefied petroleum gas, manufactured gas, natural gas, and other gaseous fuels for direct flame heating, thus rapidly heating cooking utensils. The components of a typical burner include the burner itself (comprising the burner head, gas distribution plate, and burner cap), a control valve, an igniter, and an injector. The process involves gas supplied from an external gas pipe or gas cylinder being delivered to the burner via the control valve and injector. The igniter then ignites the gas at the burner to generate heat. During this process, the control valve regulates the gas flow rate, thereby controlling the flame intensity.

[0003] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0004] Most existing burners are two- or three-ring burners, meaning the burner cap has two or three rings of flame holes arranged from the inside out. Each ring of flame holes acts as a separate ring when burning. Each ring corresponds to an independent gas supply path consisting of a gas pipe, a ring-shaped mixing chamber in the burner head, and an internal channel in the gas distribution plate. This design often fails to meet the heating requirements of different cooking scenarios. For example, in frying or grilling, where uniform heating is required, different amounts of food require different heating areas. If existing burners need to adjust the heat of the inner and outer rings, multiple control valves must be controlled simultaneously, requiring users to make multiple adjustments. Adjusting only one control valve only changes the heat of its corresponding ring, leaving the heat of the other rings unchanged. This easily leads to uneven heating of the pan bottom and food. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a gas distribution plate, a burner, and a gas stove, which can improve the heating uniformity during the burner's firepower adjustment process and reduce the complexity of operation.

[0007] In some embodiments, the air distribution plate includes: a lower air distribution plate having one or more first air intake zones; and an upper air distribution plate including air distribution channels located on different rings from the inside out, wherein some or all of the air distribution channels on non-adjacent rings are connected to the one or more first air intake zones.

[0008] In some embodiments, the burner includes a burner cap, a burner head, and a gas distribution plate as shown in the above embodiments.

[0009] In some embodiments, the gas stove includes the burner shown in the above embodiments.

[0010] The gas distribution plate, burner, and gas stove provided in this disclosure can achieve the following technical effects:

[0011] The gas distribution plate provided in this embodiment, through the setting of the first air intake zone on the lower gas distribution plate, allows the gas entering from one air intake channel on the lower gas distribution plate to be diverted to the gas distribution channels on different rings on the upper gas distribution plate, thereby supplying gas to the corresponding burner rings of each gas distribution channel. In this way, when the gas flow rate of the air intake channel changes, the gas flow rate of the corresponding gas distribution channel and burner ring will also change synchronously. At the same time, since the burner rings corresponding to the same air intake channel are located at different inner and outer heating positions, the gas flow rate adjustment for a single air intake channel can simultaneously achieve synchronous adjustment of the firepower at different inner and outer heating positions, thereby effectively improving heating uniformity and reducing the complexity of operation.

[0012] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0013] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0014] Figure 1 This is a schematic diagram of the exploded structure of a gas distribution plate provided in an embodiment of this disclosure;

[0015] Figure 2 This is a schematic diagram of the exploded structure of a gas distribution plate provided in an embodiment of this disclosure;

[0016] Figure 3 This is a schematic diagram of the exploded structure of a gas distribution plate provided in an embodiment of this disclosure;

[0017] Figure 4 This is an exploded structural diagram of another gas distribution plate provided in this embodiment;

[0018] Figure 5 This is an exploded structural diagram of another gas distribution plate provided in this embodiment;

[0019] Figure 6 This is a schematic diagram of the structure of the lower air distribution plate of another air distribution plate provided in this embodiment of the present disclosure;

[0020] Figure 7 This is a schematic diagram of the structure of the lower air distribution plate of another air distribution plate provided in this embodiment of the present disclosure;

[0021] Figure 8 This is an exploded structural diagram of another gas distribution plate provided in this embodiment;

[0022] Figure 9 This is an exploded structural diagram of another gas distribution plate provided in this embodiment;

[0023] Figure 10 This is an exploded structural diagram of another gas distribution plate provided in this embodiment;

[0024] Figure 11 This is an exploded structural diagram of another gas distribution plate provided in this embodiment;

[0025] Figure 12 This is a schematic diagram of the structure of the lower air distribution plate of another air distribution plate provided in this embodiment of the present disclosure;

[0026] Figure 13 This is a schematic diagram of another air distribution plate provided in an embodiment of this disclosure;

[0027] Figure 14 This is a schematic diagram of the structure of a burner provided in an embodiment of this disclosure;

[0028] Figure 15 This is a schematic diagram of a gas supply structure for a burner provided in an embodiment of the present disclosure;

[0029] Figure 16 This is a schematic diagram of the connection relationship of the air distribution plate in an embodiment of this disclosure;

[0030] Figure 17 This is a connection diagram of a gas supply structure for a burner provided in an embodiment of this disclosure;

[0031] Figure 18 This is a connection diagram of another gas supply structure for a burner provided in an embodiment of this disclosure;

[0032] Figure 19 This is a schematic diagram of a gas supply structure for a burner provided in an embodiment of the present disclosure;

[0033] Figure 20 This is an exploded view of another gas supply structure for a burner provided in an embodiment of this disclosure.

[0034] Figure label:

[0035] 100. Flame cap; 101. First ring sub-flame cap; 102. Second ring sub-flame cap; 103. Central flame cap;

[0036] 200. Air distribution plate; 2001. Intake channel; 2002. Air distribution channel; 201. Inner ring air inlet; 202. Middle ring air inlet groove; 2021. Middle ring air inlet; 203. Outer ring air inlet groove; 2031. Outer ring air inlet; 204. Inner ring air distribution port; 205. First air distribution channel; 206. Second air distribution channel; 207. Third air distribution channel; 208. Fourth air distribution channel; 209. Central air distribution channel; 210. Lower air distribution plate; 211. Lower plate body; 2111. Plate wall; 212. Inner ring component; 213. Middle 214. Annular component; 220. Outer annular component; 221. Intake zone component; 221. Intake chamber; 2211. Outer intake channel; 2212. Inner intake channel; 2213. Second type of intake channel; 2214. Third type of intake channel; 222. Separator component; 230. First intake zone; 231. First intake channel; 2311. First radial intake section; 2312. First circumferential intake section; 232. Second intake channel; 233. Central intake channel; 2321. Second radial intake section; 2322. Second circumferential intake section 240. First dividing rib; 241. First arc segment; 242. First straight segment; 2421. First straight segment on the first side; 2422. First straight segment on the second side; 243. First bending segment; 244. Second bending segment; 250. Second dividing rib; 251. Second arc segment; 252. Second straight segment; 260. Third annular dividing rib; 270. Air supply channel; 271. Air supply inlet; 272. Inner air inlet channel; 273. Outer air inlet channel; 274. Air outlet channel; 275. Inner side 276. Outer air supply outlet; 280. Air guide vane; 281. Curved guide vane; 282. Straight plate; 290. Upper air distribution plate; 291. Upper plate body; 292. Matching component; 293. Inner ring component; 294. First annular air distribution component; 295. Second annular air distribution component; 296. Third annular air distribution component; 297. Fourth annular air distribution component; 298. Sloping structure; 2901. First air outlet; 2902. Second air outlet; 2903. Third air outlet; 2904. Fourth air outlet;

[0037] 300, Furnace head; 310, Mixing chamber; 301, First annular mixing chamber; 302, Second annular mixing chamber; 303, Central annular mixing chamber; 320, Injector tube;

[0038] 400. Intake assembly; 410. Intake pipe; 420. Switching device; 401. First intake pipe; 402. Second intake pipe; 403. Central intake pipe; 404. First control valve; 405. Second control valve; 406. Central control valve; 407. Main control valve. Detailed Implementation

[0039] The following description and accompanying drawings fully illustrate specific embodiments described herein to enable those skilled in the art to practice them. Some embodiments may include or substitute parts and features of other embodiments. The scope of the embodiments herein encompasses the entire scope of the claims and all available equivalents thereof. Throughout this document, the terms “first,” “second,” etc., are used only to distinguish one element from another without requiring or implying any actual relationship or order between the elements. Indeed, a first element can also be referred to as a second element, and vice versa. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, apparatus, or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the structure, apparatus, or device that includes said element. The various embodiments described herein are presented in a progressive manner, with each embodiment focusing on its differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

[0040] The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this document to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing the document and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description herein, unless otherwise specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0041] In this document, unless otherwise stated, the term "multiple" means two or more.

[0042] In this article, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0043] In this article, the term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0045] Generally, the gas distribution plate 200 is used in conjunction with the burner head and burner cap 100. One optional assembly method is to place the gas distribution plate between the burner head 300 and the burner cap 100 and construct it as an intermediate flow path for the gas (or a mixture of air and gas) connecting the two, so that the gas enters the gas distribution plate from the burner head 300 and then flows into the burner cap 100, and is finally ignited at the flame hole of the burner cap 100 to form a flame.

[0046] Here, in order to improve the heating area and heating uniformity of the container placed above the burner cap 100, the burner cap is optionally composed of two or more annular sub-burner caps. Different annular sub-burner caps are coaxially arranged and nested from the inside to the outside. Each annular sub-burner cap is provided with multiple flame holes, which are evenly arranged along the circumference of the annular sub-burner cap, so that the multiple flame holes on each annular sub-burner cap can form an annular flame. The multiple annular flames can heat the container at their respective corresponding annular positions.

[0047] Optionally, one or more sets of flame holes located on different rings are provided on the same annular sub-flame cover, and each set of flame holes can form an annular flame on its respective ring.

[0048] Correspondingly, the gas distribution plate 200 has multiple airflow channels for gas flow. After the gas enters the gas distribution plate 200 through the burner head, it can flow through multiple airflow channels and finally be distributed to the corresponding annular sub-burner caps of the burner caps, so as to supply gas to the burner holes located in different annular positions. In this embodiment, the burner head has multiple independent annular mixing chambers. The multiple annular mixing chambers are concentrically arranged and sequentially nested from the inside to the outside. Each annular mixing chamber is connected to one or more airflow channels of the gas distribution plate. That is, the presence or absence of gas supply in each annular mixing chamber in the burner head can determine whether there is gas supply in the one or more airflow channels corresponding to each airflow channel, thereby affecting whether a flame can be formed in the annular sub-burner caps corresponding to each airflow channel.

[0049] For example, if there is no gas supply in a certain annular mixing chamber, no gas will flow through its corresponding airflow channel, so no flame will form on the corresponding annular sub-burner ring. Conversely, if there is gas supply in the annular mixing chamber, a flame can form on the corresponding annular sub-burner ring. Furthermore, the gas flow rate from the annular mixing chamber also determines the size of the flame formed on the corresponding annular sub-burner ring; generally, the gas flow rate and flame size are positively correlated. Therefore, by adjusting the gas supply status of the annular mixing chamber, it is possible to control whether a flame forms and the size of the flame.

[0050] This disclosure provides a gas distribution plate 200, which includes an air inlet and a gas distribution section that are interconnected. The air inlet can be used to communicate with the annular mixing chamber side to introduce fuel gas from the annular mixing chamber into the gas distribution plate 200 and deliver it to the gas distribution section; the gas distribution section can be used to communicate with the burner side to supply the fuel gas introduced by the air inlet to the corresponding annular sub-burners.

[0051] In this embodiment, the air intake includes multiple air intake channels 2001. Each air intake channel 2001 extends from the inside to the outside. Taking the structure of the air distribution plate 200 shown in the figure as an example, extending from the inside to the outside means that the air intake channel 2001 extends outward from the center (or near the center) in a circumferential direction. In this embodiment, an optional extension direction is shown to extend along the radial direction of the air distribution plate.

[0052] Generally, the inner and outer extension lengths of the air intake channel 2001 are determined by the annular position of its corresponding burner head annular mixing chamber and / or annular sub-burner cap, so as to ensure that the air intake channel 2001 can at least connect to the corresponding burner head annular mixing chamber and at least deliver the gas to the annular position of one or more corresponding annular sub-burner caps.

[0053] In this embodiment, the air distribution section includes air distribution channels 2002 located on different rings from the inside to the outside, and some or all of the air distribution channels 2002 on non-adjacent rings are connected to the same air intake channel 2001.

[0054] The gas distribution plate provided in this embodiment connects some or all of the gas distribution channels 2002 on non-adjacent rings of the gas distribution section with the same air intake channel 2001, so that at least one air intake channel 2001 can respectively deliver gas to the corresponding burner rings of the gas distribution channels 2002 on different rings. In this way, when the gas flow rate of the air intake channel 2001 changes, the gas flow rate of its corresponding gas distribution channel 2002 and burner ring will also change synchronously. At the same time, since the burner rings corresponding to the same air intake channel 2001 are located at different inner and outer heating positions, the gas flow rate adjustment for a single air intake channel 2001 can simultaneously achieve synchronous adjustment of the firepower at different inner and outer heating positions, thereby effectively improving heating uniformity and reducing the complexity of operation.

[0055] Optionally, the number of loops in the gas distribution channel 2002 is the same as the number of loops in the burner holes on the burner cap. At the same time, the positions of the loops in the gas distribution channel 2002 correspond to the positions of the burner hole loops, so that each gas distribution channel 2002 can deliver gas to a set of burner holes at the corresponding position.

[0056] Optionally, the number of gas distribution channels 2002 corresponding to each ring line is one or more; wherein, the gas distribution channels 2002 corresponding to the same ring line are evenly distributed along the ring line, so that the gas can enter the annular sub-burner cap from the gas distribution channels 2002 at different positions of the ring line in a relatively uniform manner, so as to ensure the uniformity and stability of the flame distribution.

[0057] In an optional embodiment, the air distribution plate 200 is constructed as a disc-shaped semi-enclosed housing adapted to the annular mixing chamber and the burner cap, with both the air intake and the air distribution portion formed in the housing.

[0058] Optionally, the intake passage 2001 is formed inside the housing, and one or more intake slots for connecting to the annular mixing chamber are provided on the bottom surface of the housing; Optionally, each intake passage 2001 corresponds to an independent intake slot, so that each intake passage 2001 can be connected to the annular mixing chamber through the intake slot, and the gas enters the intake passage from the annular mixing chamber through the intake slot.

[0059] In some embodiments, the air inlets of the plurality of air inlet channels 2001 are disposed on the central side of the gas distribution plate 200 and correspond to the positions of their respective annular mixing chambers. For example, the air inlet channel 2001 includes a first air inlet channel and a second air inlet channel, wherein the first air inlet channel corresponds to the annular mixing chamber on the inner side of the burner head and the second air inlet channel corresponds to the annular mixing chamber on the outer side of the burner head, and the annular line where the air inlet of the first air inlet channel is located is disposed on the inner side of the annular line where the air inlet of the second air inlet channel is located.

[0060] Figure 1 , Figure 4 , Figure 6 and Figure 8 In the structure of the gas distribution plate 200 shown, the air inlet of the air intake channel 2001 is located on the center side of the gas distribution plate 200. Here it is defined as the first type of air intake channel. That is, the air intake end of the first type of air intake channel is located on the center side and the air outlet end is located on the circumferential side. After the gas enters the gas distribution plate 200, its main flow direction is from the center side to the circumferential side.

[0061] In some other embodiments, such as Figure 13 As shown, the intake form of the intake passage 2001 can also be a second type of intake passage 2213 and / or a third type of intake passage 2214.

[0062] Here, the intake end of the second type of intake channel 2213 is located on the circumferential side, and the outlet end is located at least on the center side. That is, the main flow direction of the gas through the second type of intake channel 2213 and the gas distribution plate is from the circumferential side to the center side.

[0063] The intake end of the third type of intake channel 2214 is located in the middle ring, and the outlet end includes at least the center side and the circumferential side. That is, the main flow direction of the gas through the third type of intake channel 2214 and the gas distribution plate is from the middle ring position to both the center side and the circumferential side.

[0064] The second type of intake channel 2213 and the third type of intake channel 2214 are positioned near the outer periphery at the intake end, which can shorten the flow distance of the gas from the intake end to the outer periphery. Since the outer periphery requires more gas, the pressure loss of the gas flowing in the intake channel can be reduced. Furthermore, due to the reduction in the flow path, the speed at which the gas flows to the outer ring burner hole ring after the burner valve is opened can also be shortened, thereby improving the ignition response speed of the burner hole ring on the outer ring side when the burner is ignited.

[0065] The gas distribution plate provided in this embodiment has one or more different air intake channel structures, which allows gas to flow through the gas distribution plate with different air intake and exhaust flow paths, and then deliver gas to the corresponding gas distribution channels of different rings. Different air intake channel structures can be adapted to the differentiated gas supply needs of two or more gas distribution channels, improve the uniformity of gas distribution to different gas distribution channels and the stability of gas flow and pressure, thereby effectively ensuring the combustion effect of the gas stove.

[0066] Optional, such as Figure 13 As shown, the intake passage is constructed as a circularly symmetrical structure. Here, the different positions of the same intake passage are interconnected and share the same intake end. The combustion gas flows into the intake passage through the same intake end and then flows to the different positions of the intake passage.

[0067] Alternatively, for a distribution plate equipped with two or more of the above-mentioned air intake channels, such as a distribution plate that is simultaneously equipped with a first type of air intake channel and a second type of air intake channel 2213, or a distribution plate that is simultaneously equipped with a first type of air intake channel, a second type of air intake channel 2213 and a third type of air intake channel 2214, the different air intake channels are arranged alternately along the circumference to ensure the combustion uniformity of the burner rings corresponding to different types of air intake channels as much as possible.

[0068] Optionally, for the second type of air intake channel 2213 and the third type of air intake channel 2214, since the distance between their air intake end and the gas distribution plate is relatively far, if the ring-type annular mixing chamber gas supply method is still used, there may be a problem that the air intake end cannot correspond to the position of the annular mixing chamber. Therefore, in some embodiments, the multiple ejector tubes 320 of the burner can be connected to the different air intake channels of the gas distribution plate one by one, so as to directly supply gas to the corresponding air intake channel through the ejector tubes 320.

[0069] Optionally, the intake end of the intake passage is configured to match the diameter of the gas outlet of the ejector tube 320.

[0070] Generally, the axes of each ejector tube 320 are located in the same plane. Therefore, in order to reduce the structural interference between each ejector tube 320 in the above-mentioned arrangement where the ejector tube 320 is directly connected to the gas distribution plate, at least two ejector tubes 320 are arranged at an angle, and the angle can be 20°, 60°, 90°, 120°, etc.

[0071] For example, such as Figure 13 As shown, this embodiment of the present disclosure has a total of 3 ejector tubes 320, of which 2 ejector tubes 320 are arranged in parallel with each other. These 2 ejector tubes supply air to the central air intake channel and the third type of air intake channel, respectively. Due to the position of the air intake end of the second type of air intake channel corresponding to the third ejector tube, the third ejector tube 320 arranged in parallel with the other ejector tubes 320 will cause structural interference with the ejector tube 320 supplying air to the central air intake channel. Therefore, the third ejector tube 320 is arranged at a 90° angle with respect to the other 2 ejector tubes 320.

[0072] Alternatively, the gas distribution channel is located on the top surface of the housing. Here, the gas distribution channel serves as the "gas outlet" of the gas distribution plate. Gas from the intake channel can flow out of the gas distribution plate from the corresponding gas distribution channel and then enter the burner cap.

[0073] The gas distribution plate of this embodiment generally includes a lower gas distribution plate 210 and an upper gas distribution plate 290. The lower gas distribution plate 210 and the upper gas distribution plate 290 are sealably connected to prevent leakage of the flowing gas. Optionally, after the two are fastened together, a threaded connection or a welding connection method can be used.

[0074] Optionally, the connection end faces of the lower air distribution plate 210 and the upper air distribution plate 290 are flat, improving the sealing performance of the connection.

[0075] Optionally, the lower gas distribution plate 210 is a casting or a forging.

[0076] In this embodiment of the disclosure, based on the structure of the lower air distribution plate 210, the provided air distribution plates are mainly divided into three categories.

[0077] Combination Figure 1-3 As shown, the first type of air distribution plate provided in the embodiments of this disclosure includes a lower air distribution plate 210 and an upper air distribution plate 290. The lower air distribution plate 210 has one or more air intake zones, and each air intake zone is provided with a partition structure that divides the air intake zone into multiple air intake channels. The upper air distribution plate 290 includes air distribution channels located on different rings from the inside to the outside, and some or all of the air distribution channels on non-adjacent rings are connected to the same air intake channel.

[0078] The first type of gas distribution plate in this embodiment, through the setting of the air intake partition on the lower gas distribution plate 210, allows the gas entering from one air intake on the lower gas distribution plate 210 to be diverted to the gas distribution channels on different rings on the upper gas distribution plate 290, thereby expanding the gas distribution area, increasing the gas flow area, increasing the diversity of flame output methods, and increasing the flexibility of the heating area, which can meet various cooking needs, such as frying, grilling and other cooking heating scenarios.

[0079] In some embodiments, the lower air distribution plate 210 includes a lower plate body 211, one or more air intake partition components and a partition component 222. The lower plate body 211 has an inner ring air intake port 201 and a plurality of annular air intake grooves. Each air intake partition component has an air intake cavity 221 and is arranged radially on the lower plate body 211. The partition component 222 is disposed in the air intake cavity 221 of the air intake partition component and divides the air intake cavity 221 into a plurality of air intake channels. Each air intake channel is connected to one annular air intake groove of the lower plate body 211.

[0080] In this embodiment, the burner head also includes an annular mixing chamber at the center. The inner annular air inlet 201 serves as the central air inlet channel connecting the gas distribution plate to the annular mixing chamber. The central air inlet channel is formed by extending along the central axis of the gas distribution plate, with its lower end being the air inlet end and its upper end being the air outlet end. The gas flows from bottom to top.

[0081] In this embodiment, the number of annular air intake slots on the lower plate 211 is consistent with the number of air intake channels separated within the air intake partition component, with one air intake channel corresponding to one annular air intake slot. Thus, the gas entering each annular air intake slot flows into the gas distribution channel on a non-adjacent ring through the corresponding air intake channel, achieving one-to-many gas distribution and increasing the flexibility of gas distribution.

[0082] In some embodiments, the lower plate 211 includes a plate wall 2111 and a plurality of annular members. A through hole is provided at the center of the plate wall 2111. The plurality of annular members are concentrically arranged on the plate wall 2111 to form an inner annular air inlet 201 and a plurality of annular air inlet grooves. In this embodiment, the innermost annular member surrounds the through hole on the plate wall 2111 to form the inner annular air inlet 201, and the remaining annular members are concentrically arranged to form a plurality of annular air inlet grooves. In this embodiment, the plurality of annular air inlet grooves provided on the plate wall 2111 of the lower plate 211 are connected to the gas outlet of the burner head to receive fuel gas. The number of annular air inlet grooves can be determined according to actual needs.

[0083] Optionally, the annular member is a circular rib plate with a certain height.

[0084] Optionally, the number of annular air intake slots is two. For example... Figure 2As shown, the inner annular component 212 surrounds the through hole on the disk wall 2111, and the middle annular component 213 and the outer annular component 214 are concentrically arranged on the disk wall 2111 from the inside to the outside, with the outer annular component 214 located at the edge of the disk wall 2111. An inner annular air inlet 201, a middle annular air inlet groove 202 and an outer annular air inlet groove 203 are formed sequentially on the lower disk body 211.

[0085] Optionally, the intake chamber 221 of the intake partition component is divided into two intake channels by the partition component 222; defined as the outer intake channel 2211 and the inner intake channel 2212, respectively. The outer intake channel 2211 is connected to the outer annular intake groove 203, and the inner intake channel 2212 is connected to the middle annular intake groove 202.

[0086] Optionally, the disc wall 2111 of the lower disc body 211 is arc-shaped, and multiple annular components are provided on its concave wall surface, then the air intake partition component is provided on the convex wall surface of the lower disc body 211.

[0087] Optionally, a portion of the convex wall surface of the lower disc 2111 forms an air replenishment channel 270 between it and the air intake partition component. For example... Figure 1 As shown, a portion of the convex wall surface of the lower disc 2111 forms an air replenishment channel 270 between it and the outer walls of two adjacent air intake partition components. Therefore, an air replenishment outlet can be provided at the corresponding position on the upper air distribution disc 290. This increases the contact amount between the fuel gas and air during combustion, thereby improving combustion efficiency.

[0088] Optionally, the air replenishment channel 270 includes a first air replenishment channel and a second air replenishment channel.

[0089] The first air replenishment channel is configured to extend from the bottom of the air distribution plate from the outside to the inside, with its air inlet located on the outer periphery of the air distribution plate and its air outlet extending at least to the space between the outer annular member 214 and the middle annular member 213. The first air replenishment channel is used to supply air to the gap formed between the rings where the first air distribution channel and the second air distribution channel are located. The first air replenishment channel extends circumferentially along the ring where it is located.

[0090] The second air replenishment channel is constructed to extend from the bottom of the air distribution plate from the outside to the inside. Its air inlet is located on the outer periphery of the air distribution plate, and its air outlet extends at least to the space between the inner annular member 212 and the middle annular member 213. The second air replenishment channel is used to supply air to the gap formed between the rings where the second air distribution channel and the third air distribution channel are located. The second air replenishment channel extends circumferentially along the ring where it is located.

[0091] Here, the air supply channel 270 can increase the amount of air around at least one of its corresponding burner rings to improve the combustion of the gas more completely.

[0092] Here, multiple air intake channels are evenly spaced along the circumference. Adjacent air intake channels, together with the outer ring component and the middle ring component, enclose the outlet end of the first air replenishment channel; adjacent air intake channels, together with the inner ring component and the middle ring component, enclose the outlet end of the second air replenishment channel.

[0093] Alternatively (not shown in the figures), the first air supply channel is recessed relative to the bottom surface of the air distribution plate and is located between two adjacent air intake channels; similarly, the second air supply channel is recessed relative to the bottom surface of the air distribution plate and is located between two adjacent air intake channels. This recessed design reduces the bulge on the bottom surface of the lower air distribution plate 210 and improves the pressure resistance of the air distribution plate.

[0094] In this embodiment, the first air supply channel has a structure that gradually narrows from the outside to the inside, and the second air supply channel also has a structure that gradually narrows from the outside to the inside. For example, the main body of the first air supply channel has a concave structure in the shape of a trumpet or a cone.

[0095] In some optional embodiments, multiple first air supply channels are evenly arranged along the circumference of the air distribution plate, and / or multiple second air supply channels are evenly arranged along the circumference of the air distribution plate. This allows air to be evenly supplied to the inner side from multiple positions along the circumference of the air distribution plate, further ensuring the stability and uniformity of flame combustion.

[0096] In this embodiment, the number of intake partition components is not limited and can be determined according to actual needs. Optionally, there may be one, two, three, four, or more intake partition components. When there are multiple intake partition components, they are radially distributed around the center of the lower plate 211.

[0097] Optionally, when there are multiple intake partition components, the end faces of the intake chambers 221 of the multiple intake partition components are located on the same horizontal plane, which is the connection end face of the lower air distribution plate 210. This improves the sealing connection with the connection end face of the upper air distribution plate 290.

[0098] In some embodiments, the intake partition member extends radially outward from the lower plate 211, increasing the air distribution area of ​​the air distribution plate.

[0099] In this embodiment, the structure of the intake partition component is not limited, as long as it can guide the intake air to part or all of the non-adjacent rings of the upper air distribution plate 290.

[0100] In some embodiments, along the radial direction of the lower plate 211, the bottom wall of the intake partition member curves towards the upper air distribution plate 290, and the circumferential width of the intake chamber 221 is enlarged. That is, the bottom wall of the intake passage is arc-shaped and close to the upper air distribution plate 290, guiding the intake air to flow towards the upper air distribution plate 290, and using the enlarged intake passage to buffer the outlet pressure, allowing the combustion gas to enter the air distribution passage of the upper air distribution plate 290 more smoothly. In this embodiment, the intake partition member is bucket-shaped, and the bucket cavity of the bucket-shaped intake partition member is the intake chamber 221.

[0101] In some embodiments, the intake chamber 221 of the intake partition member includes a radial portion and a circumferential portion, the circumferential portion being located on the outer side and having a circumferential width greater than that of the radial portion; each intake channel (inner intake channel 2212 and outer intake channel 2211) formed by the partition member 222 includes a communicating radial extension and a circumferential extension. The increased circumferential structure of the intake partition increases the air distribution area of ​​the outer ring and also increases the support area for the upper air distribution plate 290, making the structure of the air distribution plate more stable.

[0102] Optionally, the radial extension extends from the inside to the outside along the radial direction of the air distribution plate, and each air distribution channel is connected to the corresponding radial extension.

[0103] Optionally, the intake chamber 221 is shaped like the number "7", and the intake channel is also shaped like the number "7".

[0104] Optionally, multiple intake channels are evenly arranged circumferentially at equal arc intervals. Taking intake channels corresponding to the same combination of annular gas distribution channels as an example, in this embodiment, the number of intake channels is four. The four intake channels are supplied with gas from the same annular mixing chamber and to the same multiple annular gas distribution channels. Therefore, arranging the four intake channels evenly circumferentially with equal arc intervals between them allows the gas output from each annular gas distribution channel to be more evenly distributed circumferentially, improving the stability of the gas supply.

[0105] Optionally, the radial portion of the intake chamber 221 also expands radially, and the radial extension of each intake channel gradually expands from the inside to the outside, with the channel cross-sectional area gradually increasing. For example, the radial extension can be set as a trumpet shape or a cone shape.

[0106] Here, the circumference of the outer ring is greater than that of the inner ring. If the flame intensity of the corresponding burner rings of the inner and outer rings is to be kept within a similar range, the number of burner holes corresponding to the outer ring is generally greater than that corresponding to the inner ring, requiring a greater amount of gas. Therefore, the expansion structure can increase the cross-sectional area of ​​the channel located on the radially outer side of the radial extension to increase the amount of gas corresponding to the outer ring.

[0107] In some embodiments, the partition member 222 is in the shape of a "7", and a "7"-shaped partition member 222 is disposed in the air intake cavity 221 to divide two or more air intake channels.

[0108] Optionally, a "7"-shaped separator 222 is conformally disposed within a "7"-shaped air intake chamber 221, dividing the radial and circumferential portions of the air intake chamber 221 into two separate "7"-shaped air intake channels. For example... Figure 1 As shown, a "7"-shaped dividing member 222 has a horizontal portion disposed in the circumferential portion of the air intake chamber 221 and a vertical portion disposed in the radial portion of the air intake chamber 221, thereby dividing the air intake chamber into two air intake channels.

[0109] Optionally, the centerline of the radial extension of the intake passage can be either an arc or a straight line.

[0110] Optionally, the partition member 222 is a partition rib, which is vertically arranged in the air intake chamber 221. This reduces the volume of the partition member 222 in the air intake chamber 221 and increases the air intake volume.

[0111] Optionally, the upper end face of the vertically arranged partition member 222 is flush with the end face (upper end face) of the intake chamber 221. This improves the sealing performance of each intake passage constructed after the lower air distribution plate 210 and the upper air distribution plate 290 are connected.

[0112] In this embodiment of the disclosure, the communication method between the air intake partition component 220 and the annular air intake groove on the lower gas distribution plate 210 is not limited, as long as communication is achieved to ensure the flow of gas. For example, each annular air intake groove has an air intake port on its corresponding plate wall 2111 that communicates with the air intake channel. Figure 3 The middle ring air intake 2021 and the outer ring air intake 2031 are shown.

[0113] In some embodiments, the bottom wall of the air intake partition component 220 is disposed on the disk wall 2111 of the lower disk body 211, and a communicating air intake is formed on the disk wall 2111 and the bottom wall at the position where the air intake channel overlaps with the annular air intake groove.

[0114] Optionally, the intake slot of the radial extension of the intake channel is configured as an arc-shaped concave structure that can smoothly transition with the annular mixing chamber, so as to reduce the path resistance of the gas flow from the annular mixing chamber to the gas distribution plate and improve the smoothness of gas entry.

[0115] In some embodiments, the disk wall 2111 of the lower disk body 211 is arc-shaped, and is inserted into a portion of the arc-shaped disk wall 2111 such that the bottom wall of the air intake partition component 220 is opposite to the outer convex wall surface of the disk wall 2111 of the lower disk body 211, so that the end face of the air intake cavity 221 of the air intake partition component 220 is flush with the center of the outer convex wall surface of the arc-shaped disk wall 2111; and the annular structural member that interferes with the air intake channel is removed, and it is ensured that one air intake channel is connected to only one annular air intake slot.

[0116] In some embodiments, the circumferential extension connects to the outer end of the radial extension corresponding to the same intake channel and extends along a circumferential line. Here, the circumferential extension generally refers to the short side segment of the "7"-shaped intake channel mentioned above. The circumferential extension is positioned corresponding to the distribution channel, that is, the circumferential line of the circumferential extension is collinear with the annular line of its corresponding distribution channel, so that the circumferential extension can deliver fuel gas to at least the corresponding connected distribution channel. The circumferential extension can increase the circumferential interface diameter area between the intake channel and the distribution channel, thereby accelerating the fuel gas outflow rate of the radial extension of the intake channel.

[0117] It should be understood that the use of the figure-7 shape to represent the intake channel structure in the preceding text does not involve any limitation on the length between the radial extension and the circumferential extension. That is, the length of the radial extension can be greater than, less than or equal to the length of its corresponding circumferential extension.

[0118] Optionally, some adjacent circumferential extensions located on the same circumference are interconnected, so that the gas from one intake channel can be transported to the circumferential extension of another intake channel via the circumferential extension. This not only effectively increases the overall length of the circumferential extension and improves the gas delivery efficiency to the gas distribution channel, but also further enhances the uniformity of the circumferential gas output.

[0119] Combination Figure 4-12 As shown, this embodiment of the present disclosure provides a second type of air distribution plate, including a lower air distribution plate 210 and an upper air distribution plate 290. The lower air distribution plate 210 has one or more first air intake zones 230. The upper air distribution plate 290 includes air distribution channels located on different rings from the inside to the outside. Some or all of the air distribution channels that are not adjacent to each other are connected to one or more first air intake zones 230.

[0120] The second type of gas distribution plate in this embodiment, through the setting of the first air intake zone 230 on the lower gas distribution plate 210, allows the gas entering from one air intake on the lower gas distribution plate 210 to be diverted to the gas distribution channels on different rings on the upper gas distribution plate 290, thereby expanding the gas distribution area, increasing the diversity of flame output methods, increasing the flexibility of heating area, and meeting various cooking needs, such as frying, grilling and other cooking heating scenarios.

[0121] In some embodiments, the air intake portion of the gas distribution plate includes at least a first air intake channel 231 and a second air intake channel 232 formed on the lower gas distribution plate 210; correspondingly, the gas distribution portion includes at least a first air distribution channel 205, a second air distribution channel 206, and a third air distribution channel 207 formed on the upper gas distribution plate 290. The first air distribution channel 205 and the third air distribution channel 207 are connected to the first air intake channel 231, and the second air distribution channel 206 is connected to the second air intake channel 232. Therefore, the combustion state of the burner rings corresponding to the first air distribution channel 205 and the third air distribution channel 207 can be uniformly controlled by the air supply path corresponding to the first air intake channel 231, and the combustion state of the burner rings corresponding to the second air distribution channel 206 can be controlled by the air supply flow rate corresponding to the second air intake channel 232; the two are independent of each other.

[0122] In this way, when the gas flow rate in each intake channel changes, the gas flow rate in the corresponding distribution channel and the burner ring will also change synchronously. At the same time, since the burner rings corresponding to the same intake channel (such as the first intake channel 231) are located in different inner and outer heating positions, the gas flow rate adjustment for a single intake channel can simultaneously achieve synchronous adjustment of the firepower at multiple different inner and outer heating positions, thereby effectively improving heating uniformity and reducing the complexity of operation.

[0123] Optional, such as Figure 4 and Figure 6 As shown, there are multiple first intake channels 231 and two intake channels 232, which are arranged in groups in a one-to-one correspondence. The multiple groups of first intake channels 231 and second intake channels 232 are evenly arranged along the circumference at equal arc intervals, so that the gas output from the gas distribution channel on each ring can be more evenly distributed in the circumference, thereby improving the stability of gas supply.

[0124] Another option, such as Figure 8 As shown, there are multiple first air intake channels 231 and multiple second air intake channels 232; the first air intake channels 231 and the second air intake channels 232 are arranged alternately in the circumferential direction. Figure 8 In the embodiment shown, there are two first air intake channels 231 and two second air intake channels 232. The four air intake channels are arranged in a "cross" shape on the lower air distribution plate 210 of the air distribution plate. The two first air intake channels 231 are symmetrically arranged, and the two second air intake channels 232 are also arranged opposite each other.

[0125] Optionally, the first air intake channel 231 and the second air intake channel 232 have a channel structure that gradually expands from the inside to the outside and the channel cross-sectional area gradually increases.

[0126] In some embodiments, the first air intake channel 231 supplies gas to both the first air distribution channel 205 and the third air distribution channel 207. The number of air distribution channels corresponding to its gas supply is greater than that of the second air intake channel 232. Therefore, in order to ensure the flame intensity of the corresponding burner rings of the first air distribution channel 205 and the third air distribution channel 207, the expansion range of the first air intake channel 231 is greater than that of the second air intake channel 232, so as to adapt to the larger gas flow demand of the first air intake channel 231.

[0127] In some embodiments, the lower air distribution plate 210 includes a lower plate body 211 and a first partition rib 240. A through inner annular member 212 (forming an inner annular air inlet 201) is provided at the center of the first plate surface of the lower plate body 211, and a plurality of annular air inlet grooves surrounding the inner annular member 212 are provided on the second plate surface. The first partition rib 240 has a first arc segment 241 and a first straight segment 242, with the first straight segment 242 respectively provided at both ends of the first arc segment 241; the first partition rib 240 is disposed on the first plate surface of the lower plate body 211. The end of the first straight segment 242 is connected to the inner annular member 212; the area between the first partition rib 240 and a portion of the inner annular member 212 forms a first air inlet partition 230; the first air inlet partition 230 communicates with an annular air inlet groove.

[0128] In this embodiment, the lower gas distribution plate 210 is divided into a first air intake zone 230 by the first dividing rib 240, so that the gas distribution channels on non-adjacent ring lines are connected to the first air intake zone 230. This allows the fuel / premixed fuel entering one annular air intake slot to flow into the gas distribution channels on non-adjacent ring lines through the corresponding air intake channels, achieving one-to-many gas distribution and increasing the flexibility of gas distribution. The first air intake zone 230 is generally fan-shaped.

[0129] Optionally, the first air intake section 230 is connected to the inner annular air intake slot.

[0130] In some embodiments, the lower plate 211 further includes multiple annular members, arranged from the inside out on the second plate surface of the lower plate 211 with the inner annular member 212 as the center, forming multiple annular air inlet slots. In this embodiment, the multiple annular air inlet slots on the second plate surface of the lower plate 211 are connected to the gas outlet of the burner head to receive fuel gas / premixed fuel gas. The number of annular air inlet slots can be determined according to actual needs.

[0131] Optionally, the number of annular air intake slots is two. For example... Figure 5 and Figure 9 As shown, with the inner annular component 212 as the center, the middle annular component 213 and the outer annular component 214 are concentrically arranged on the second disk surface from the inside to the outside, forming an inner annular air inlet 201, a middle annular air inlet groove 202 and an outer annular air inlet groove 203 on the lower disk body 211.

[0132] Optionally, the first air intake section 230 is connected to the middle annular air intake slot 202, thereby increasing the air distribution area.

[0133] In this embodiment, the inner annular component 212, the middle annular component 213, and the outer annular component 214 are all annular parts with a certain height. The height of each annular component can be different, depending on the actual structure. Optionally, the inner annular component 212 and the outer annular component 214 are at the same height on the first disk surface of the lower disk 211, making the connecting end face of the lower air distribution disk 210 planar. Optionally, the height of the annular component located on the outer side of the second disk surface is greater than the height of the annular component located on the inner side. Figure 5 and Figure 9 As shown, the height of the outer ring component 214 is greater than the height of the middle ring component 213.

[0134] Optionally, the first partition rib 240 includes a first partition rib 240Ⅰ and / or a first partition rib 240Ⅱ. The first partition rib 240Ⅰ refers to a first arc segment 241 that is an arc greater than or equal to a semicircle, and the first partition rib 240Ⅱ refers to a first arc segment 241 that is an arc less than a semicircle.

[0135] Optionally, the number of first partition ribs 240 is one or more. When the number of first partition ribs 240 is multiple, the multiple first partition ribs 240 are spaced around the inner annular member 212, and the first arc segments 241 of the multiple first partition ribs 240 are located on the same ring line.

[0136] In this embodiment, the shape and number of the first dividing ribs 240 are not limited, and can be determined based on dividing the lower air distribution plate 210 into one or more first air intake zones 230.

[0137] Optionally, the first partition 240 includes a first partition 240Ⅰ. In this embodiment, there is one first partition 240, which divides the lower air distribution plate 210 into a first air intake zone 230. Optionally, the central angle of the first arc segment 241 of the first partition 240Ⅰ is 120° to 180°. Optionally, the central angle of the first arc segment 241 of the first partition 240Ⅰ is 140° to 160°. Optionally, the central angle of the first arc segment 241 of the first partition 240Ⅰ is 150°.

[0138] Optionally, the first partition rib 240 includes a first partition rib 240Ⅱ. In this embodiment, the number of first partition ribs 240Ⅱ is multiple, such as 2, 3, 4 or more, which can be set according to the principle of uniform air intake. Optionally, as Figure 8 As shown, there are two first dividing ribs 240, symmetrically arranged around the inner annular member 212. Figure 4 and Figure 10 As shown, there are four first dividing ribs 240, which are evenly arranged around the inner annular member 212.

[0139] Optionally, the first partition rib 240 includes a first partition rib 240Ⅰ and a first partition rib 240Ⅱ. In this embodiment, there is one first partition rib 240Ⅰ and multiple first partition ribs 240Ⅱ. The central angle of the single first partition rib 240Ⅰ is 90° to 120°. Multiple first partition ribs 240Ⅱ are disposed between two first straight line segments 242 of the first partition rib 240Ⅰ.

[0140] In some embodiments, the lower air distribution plate 210 further includes a second partition 250 having a second arc segment 251 and a second straight segment 252. The second straight segment 252 is disposed on the first end of the second arc segment 251. The second partition 250 is disposed within the first air intake partition 230, and the second end of the second arc segment 251 is connected to the first straight segment 242 of the first partition 240. The end of the second straight segment 252 is connected to the inner annular member 212. A first air intake channel 231 is formed between the outer side of the second partition 250 and the first partition 240. The first air intake channel 231 communicates with the inner annular air intake groove.

[0141] In this embodiment, the second partition rib 250 is shaped like a "7". The second arc segment 251 is arranged along the ring line of the lower air distribution plate 210, and the second straight segment 252 is not limited to being arranged radially along the lower air distribution plate 210. Then, the "7"-shaped second partition rib 250 is attached to the first straight segment 242 of the overall fan-shaped first air intake section 230, forming a first air intake channel 231 that includes a first radial air intake section 2311 and a first circumferential air intake section 2312. Furthermore, the number of second partition ribs 250 can be one or two.

[0142] Optionally, such as Figure 4 and Figure 10 As shown, one second partition rib 250 is provided within each first partition rib 240. The second end of the second arc segment 251 is connected to the first straight segment 2422 on the second side of the first partition rib 240. The second straight segment 252 is close to the first straight segment 2421 on the first side of the first partition rib 240 to form a first radial air intake 2311. A first circumferential air intake 2312 is formed between the second arc segment 251 and the first arc segment 241 of the first partition rib 240. In this embodiment, the first air intake channel 231 is in the shape of a "7".

[0143] Optionally, such as Figure 8As shown, two second partition ribs 250 are provided within each first partition rib 240. The second ends of the second arc segments 251 of the two second partition ribs 250 are respectively connected to the first straight segments 242 on both sides of the first partition rib 240. The second arc segments 251 of the two second partition ribs 250 are located on the same ring line and form a first circumferential air intake 2312 between them and the first arc segments 241 of the first partition rib 240. The second straight segments 252 are spaced apart to form a first radial air intake 2311. In this embodiment, the first air intake channel 231 is T-shaped.

[0144] In some embodiments, the end of the first straight segment 242 of the first partition rib 240 used to form the first air intake channel 231 is bent to form a first bent segment 243, and the first bent segment 243 is connected to the adjacent first straight segment 242; a communication port is opened on the lower plate 211 between the inner annular member 212 and the first bent segment 243, which communicates with the inner annular air intake groove. In this embodiment, an arc-shaped channel is formed between the first bent segment 243 and the inner annular member 212, and this arc-shaped channel corresponds to the inner annular air intake groove (e.g., the middle annular air intake groove 202), and a communication port is opened on this arc-shaped channel to form the middle annular air intake port 2021. Compared to, Figure 7 Compared to the structure where the end of the first straight segment 242 shown is not bent, the air intake area of ​​the middle ring air intake 2021 is increased, thereby increasing the air intake volume.

[0145] like Figure 4 and Figure 5 As shown, the lower air distribution plate includes four first partition ribs 240, and each first partition rib 240 contains a second partition rib 250. A first straight segment 2421 on the first side and the second partition rib 250 form the first radial air intake portion 2311 of the first air intake channel 231. Therefore, the end of the first straight segment 2421 on the first side of one of the first partition ribs 240 is bent to form a first bent segment 243, which connects to an adjacent first straight segment 242 (e.g., the second straight segment 2422 of another adjacent first partition rib 240).

[0146] Optionally, the first intake passage 231 is connected to the middle annular intake groove 202. Optionally, the first radial intake portion 2311 of the first intake passage 231 is connected to the middle annular intake groove 202. This increases the air distribution area.

[0147] In this embodiment, the first partition 240 divides the first plate surface of the lower plate 211 into two regions: the aforementioned first air intake zone 230 and the remaining region defined as the second air intake zone. The first air intake zone 230 connects to some or all of the air distribution channels of non-adjacent rings, while the remaining air distribution channels connect to the second air intake zone, thereby supplying air to all air distribution channels on the upper air distribution plate 290.

[0148] In some embodiments, the lower air distribution plate 210 further includes one or more second air intake zones, each containing a second air intake channel 232; the second air intake channel 232 communicates with a portion of the air distribution channels of the upper air distribution plate 290. In this embodiment, by constructing the second air intake channel 232 to guide the intake air into a designated portion of the air distribution channels, the flexibility of air distribution is further improved.

[0149] Optionally, when the lower air distribution plate 210 includes the first partition rib 240, the lower air distribution plate 210 also includes a third annular partition rib 260 surrounding the outside of the first partition rib 240; the area between the first partition rib 240 and the third annular partition rib 260 forms a second air intake channel 232; and the second air intake channel 232 includes a second radial air intake portion 2321 and a second circumferential air intake portion 2322 that are connected. The second air intake channel 232 is connected to the outer annular air intake groove to receive fuel gas. In this embodiment, the space between the multiple first arc segments 241 and the third annular dividing rib 260 forms the second circumferential air intake 2322, and the space between two adjacent first straight segments 242 (which can be two adjacent first straight segments 242 of different first dividing ribs 240, or two first straight segments 242 of one first dividing rib 240) forms the second radial air intake 2321. Depending on the number of first dividing ribs 240, the second radial air intake 2321 can be one or more, which increases the number of air intakes, increases the air intake volume, and also improves the air intake uniformity.

[0150] Optionally, when there are multiple first partition ribs 240, a partition is radially arranged between the first arc segment 241 of each first partition rib 240 and the third annular partition rib 260 to divide the second circumferential air intake 2322 into multiple segments, each circumferential air intake segment communicating with a second radial air intake 2321. This forms multiple second air intake channels 232.

[0151] Optionally, the second air intake passage 232 is connected to the outer annular air intake groove 203. Optionally, the second radial air intake portion 2321 of the second air intake passage 232 is connected to the outer annular air intake groove 203. This increases the air distribution area.

[0152] In this embodiment of the disclosure, depending on whether an air replenishment channel 270 is provided, a third type of air distribution plate is also provided, combined with... Figures 4 to 12 As shown, it includes a lower air distribution plate 210 and an upper air distribution plate 290. The lower air distribution plate 210 has one or more first air intake zones 230. The first air intake zone 230 is provided with a partition structure that separates it into a first air intake channel 231 and an air replenishment area. The upper air distribution plate 290 includes air distribution channels located on different rings from the inside to the outside. Some or all of the air distribution channels that are not adjacent to each other are connected to one or more first air intake zones 230.

[0153] In the third type of gas distribution plate of this disclosure embodiment, an air replenishment area is provided on the lower gas distribution plate 210 for air replenishment to improve the combustion rate of the fuel gas. In this embodiment, an air replenishment inlet structure is provided on the upper gas distribution plate 290 at a position corresponding to the air replenishment area to complete the air replenishment.

[0154] In some embodiments, the third type of lower air distribution plate 210 includes a lower plate body 211, a first partition rib 240, and a second partition rib 250. A through inner annular member 212 is provided at the center of the first plate surface of the lower plate body 211, and a plurality of annular air intake grooves surrounding the inner annular member 212 are provided on the second plate surface. The first partition rib 240 has a first arc segment 241 and a first straight segment 242, with the first straight segment 242 respectively provided at both ends of the first arc segment 241; the first partition rib 240 is disposed on the first plate surface of the lower plate body 211. The end of the first straight segment 242 is connected to the inner annular member 212; the area between the first partition rib 240 and a portion of the inner annular member 212 forms a first air intake partition 230; the first air intake partition 230 communicates with an annular air intake groove. The second partition 250 has a second arc segment 251 and a second straight segment 252. The second straight segment 252 is provided on the first end of the second arc segment 251. The second partition 250 is provided in the first air intake zone 230, and the second end of the second arc segment 251 is connected to the first straight segment 242 of the first partition 240. The end of the second straight segment 252 is connected to the inner annular member 212. The second partition 250 divides the first air intake zone 230 into an independent first air intake channel 231 and an air replenishment area. An air replenishment inlet 271 is provided on the lower plate 211 of the air replenishment area.

[0155] That is, the third type of air distribution plate is based on the second type of air distribution plate. The area enclosed by the second dividing rib 250 and part of the first straight line segment 242 of the first dividing rib 240 is defined as the air replenishment area. An air replenishment inlet 271 is opened on the lower plate body 211 of this area, which is matched with the air replenishment outlet provided on the air distribution plate 290. An air channel is formed between the air replenishment inlet 271 and the air replenishment outlet, so that the air entering through the air replenishment inlet 271 flows out through the air replenishment outlet and mixes with the fuel gas for combustion, thereby increasing the air volume and improving the combustion efficiency.

[0156] In the third type of air distribution plate of this disclosure embodiment, the structural details of the same components as those in the second type of air distribution plate are as described in the relevant content of the second type of air distribution plate, and will not be repeated here.

[0157] Optionally, the air replenishment inlet 271 is located outside the annular air intake slot of the lower plate 211. This allows air to be introduced from the outside into the inside of the air distribution plate, improving combustion efficiency.

[0158] In some embodiments, the end of the first straight segment 242 of the first dividing rib 240 used to form the air replenishment region is bent to form a second bent segment 244, and the second bent segment 244 is connected to the adjacent first straight segment 242 / second bent segment 244; an air outlet side channel 274 is formed between the inner annular member 212 and the second bent segment 244. In this embodiment, the air outlet side channel 274 is connected to the air replenishment inlet 271 of the air replenishment region to form an air channel, thereby allowing air to be introduced between the inner annular flame and the middle annular flame / middle annular flame and the outer annular flame, and also increasing the air replenishment amount and improving combustion efficiency.

[0159] In this embodiment, the method and structure of forming the air outlet side channel 274 are different depending on the number of second partition ribs 250.

[0160] Optionally, such as Figure 8 The lower air distribution plate shown has two second partition ribs 250 within each first partition rib 240. The first straight segments (2421, 2422) on both sides of the first partition rib 240 are respectively engaged with one of the second partition ribs 250 to form an air replenishment area. The ends of the first straight segments (2421, 2422) on both sides are bent outwards to form second bent segments 244. The two second bent segments 244 are connected to form a single integral second bent segment 244. This integral second bent segment 244 forms an air outlet side channel 274 between itself and the inner annular member 212. This increases the air replenishment volume.

[0161] Optionally, refer to Figure 7 The illustrated lower air distribution plate has a second partition rib 250 within each first partition rib 240. A first straight segment 2422 on the second side of the first partition rib 240 engages with the second partition rib 250 to form an air replenishment area. A second bent segment 244 can be formed by bending the end of the first straight segment 2422 outwards, and connecting it to the first straight segment 2421 on the first side of an adjacent first partition rib 240. This second bent segment 244 forms an air outlet side channel 274 between itself and the inner annular member 212, thus increasing the air replenishment volume.

[0162] In some embodiments, such as Figure 11 As shown, the lower air distribution plate 210 also includes an air guide plate 280, which is disposed at the air supply inlet 271 to guide airflow. In this embodiment, the structure and arrangement of the air guide plate 280 are not limited, as long as it can guide airflow between different air distribution channels of the upper air distribution plate 290.

[0163] Optionally, the air deflector 280 includes an arc-shaped deflector 281, which is disposed at the air supply inlet 271 in a manner that follows the annular shape of the lower plate 211 and slopes from the outside to the inside. This guides air from outside the air distribution plate to the inside. In this embodiment, the arc-shaped deflector 281 of the air deflector 280 is concentrically disposed with the annular component of the lower plate 211 and is located outside the plurality of annular components.

[0164] Optionally, the arc-shaped guide vane 281 is disposed on the inner edge of the air supply inlet 271 or at the center of its radial direction; when the arc-shaped guide vane 281 is disposed at the center of the radial direction of the air supply inlet 271, the air supply inlet 271 is divided into an inner air supply inlet 271 and an outer air supply inlet 271. These are used to supply air to the combustion gas in the inner and outer gas distribution channels, respectively, thereby improving the combustion efficiency.

[0165] Optionally, the arc-shaped guide plate 281 is disposed at the center of the radial direction of the air supply inlet 271, with the upper end of the arc-shaped guide plate 281 extending upward to be flush with the upper end of the first dividing rib 240; the lower end extending downward does not exceed the height of the outer annular member. Thus, the air supply inlet 271 is divided into an inner air supply inlet 271 and an outer air supply inlet 271.

[0166] Optionally, the curved guide plate 281 is disposed on the inner edge of the air supply inlet 271, and the downward extension height of the curved guide plate 281 is consistent with the height of the outer annular component. While serving a guiding function, it also provides some support in conjunction with the outer annular component.

[0167] Optionally, the curved guide vane 281 is formed by extending along the outer ring of the middle annular component.

[0168] In the above embodiment, "height" refers to the height of the second disk surface from the lower disk body 211.

[0169] Optionally, the air deflector 280 further includes a straight plate 282, which extends radially outward on the second disk surface of the lower disk 211, with one end connected to both ends of the curved deflector 281. The outer end of the straight plate extends to the outer periphery of the air distribution disk. In an embodiment where the curved deflector 281 is located at the radial center of the air replenishment inlet 271, the straight plate 282 circumferentially divides the lower disk 211 into an inner air inlet channel 272 corresponding to the second air replenishment channel and an outer air inlet channel 273 corresponding to the first air replenishment channel. The outer air inlet channel 273 is defined between the two straight plates 282 at both ends of one curved deflector 281, and the inner air inlet channel 272 is defined between the two straight plates 282 at adjacent ends of two adjacent curved deflectors 281. This promotes stable and uniform airflow.

[0170] Optionally, the outer side of the straight plate is provided with tapered reinforcing ribs, which can increase the deformation resistance of the straight plate itself and extend its service life.

[0171] Optionally, the air deflector and the air distribution plate are integrally formed.

[0172] Similar to the second type of air distribution plate described above, in the third type of air distribution plate of this embodiment, the first dividing rib 240 divides the first plate surface of the lower plate 211 into two areas: one is the aforementioned first air intake zone 230, and the remaining area is defined as the second air intake zone. The first air intake zone 230 connects to some or all of the air distribution channels of non-adjacent rings, while the remaining air distribution channels connect to the second air intake zone, thereby achieving air supply to all air distribution channels on the upper air distribution plate 290.

[0173] Therefore, in some embodiments, the lower air distribution plate 210 further includes one or more second air intake zones, each containing a second air intake channel 232; the second air intake channel 232 communicates with a portion of the air distribution channels of the upper air distribution plate 290. In this embodiment, by constructing the second air intake channel 232, the intake air is guided to a designated portion of the air distribution channels, further improving the flexibility of air distribution. The construction and implementation structure of the second air intake channel 232 in this embodiment can be found in the corresponding section of the aforementioned second type of air distribution plate, and will not be repeated here.

[0174] In the gas distribution plate of this disclosure embodiment, the upper gas distribution plate 290 has the same structural form among the three types of gas distribution plates mentioned above. That is, the upper gas distribution plate 290 in each of the following embodiments can be applied to each of the aforementioned lower gas distribution plates 210 to form a gas distribution plate.

[0175] In some embodiments, combined with Figures 1 to 11 As shown, the upper air distribution plate 290 includes an upper plate body 291 and multiple annular air distribution components. The upper plate body 291 has a through hole at its center (serving as an inner annular air distribution port 204). The multiple annular air distribution components are arranged coaxially from the inside out on one side of the upper plate body 291 (e.g., the second plate surface), and each annular air distribution component has an air distribution channel. The air distribution channels of some or all non-adjacent annular air distribution components are connected to the same air intake structure on the lower air distribution plate 210.

[0176] In this embodiment of the disclosure, the same air intake structure on the lower air distribution plate 210 differs from the aforementioned first to third type air distribution plates.

[0177] Optionally, for the first type of air distribution plate, the air distribution channels of some or all non-adjacent annular air distribution components on the upper air distribution plate 290 are connected to the same air intake channel on the lower air distribution plate 210. In this embodiment, the same air intake channel is either the inner air intake channel 2212 or the outer air intake channel 2211.

[0178] Optionally, for the second type of air distribution plate, the air distribution channels of some or all of the non-adjacent annular air distribution components on the upper air distribution plate 290 are connected to the first air intake zone 230 on the lower air distribution plate 210. Furthermore, when the lower air distribution plate 210 includes the second air intake channel 232, the air distribution channels of the remaining annular air distribution components are connected to the second air intake channel 232.

[0179] Optionally, for the third type of air distribution plate, the air distribution channels of some or all of the non-adjacent annular air distribution components on the upper air distribution plate 290 are connected to the first air intake channel 231 on the lower air distribution plate 210.

[0180] In the upper air distribution plate 290 of this embodiment, the other side of the upper plate body 291 (e.g., the first plate surface) is the connection end face between the upper air distribution plate 290 and the lower air distribution plate 210.

[0181] In some embodiments, such as Figure 9 He Jian Figure 11 As shown, the other side of the upper plate 291 is a flat surface. The connecting end face of the lower air distribution plate 210 is also a flat surface; after the two are joined, they can be fixedly connected.

[0182] In some embodiments, such as Figure 2 As shown, a mating component 292 is also provided on the other side of the upper plate 291. The mating component 292 is mated with the air intake partition (i.e., air intake partition component 220) on the lower air distribution plate 210 to form multiple air intake channels. This improves the sealing of the air intake channels and prevents air leakage.

[0183] Optionally, the mating component 292 includes ribs, which are disposed on the other side of the upper plate 291 in a manner that adapts to the air distribution structure on the lower air distribution plate 210.

[0184] like Figure 2 In the first type of air distribution plate shown, the shape of the ribs provided on the other side of the upper plate 291 is consistent with the shape of the air intake partition component 220 and the partition component 222 provided therein on the lower air distribution plate 210.

[0185] Optionally, the fitting component 292 protrudes from the other side of the upper plate 291. This appropriately raises the horizontal position of the upper plate 291, increases the cross-sectional area of ​​the air supply channel 270, and improves the amount of air supplied.

[0186] In this embodiment, the through hole provided on the upper plate 291 is the inner ring air distribution port 204, which is connected to the inner ring air inlet 201 on the lower air distribution plate 210 to form an inner ring gas channel.

[0187] Optionally, an upper inner ring component 293 is provided on the circumference of the through hole of the upper plate 291, so that the outlet surface of the inner ring gas channel is flush with the upper end surface of each annular gas distribution component. Of course, as Figure 4 and Figure 8 As shown, the upper inner ring component 293 can also be omitted, depending on the actual needs.

[0188] In the upper air distribution plate 290 of this disclosure embodiment, the number of annular air distribution components is not limited and can be determined according to actual needs. In some embodiments, such as Figure 1 , Figure 8 and Figure 10 As shown, there are four annular air distribution components. On the upper air distribution plate 290, from the inside out, they are the first annular air distribution component 294, the second annular air distribution component 295, the third annular air distribution component 296, and the fourth annular air distribution component 297. Correspondingly, they are configured with the first air distribution channel 205, the second air distribution channel 206, the third air distribution channel 207, and the fourth air distribution channel 208. Some or all of the non-adjacent annular air distribution components are connected to the intake structure.

[0189] Optionally, for the first type of air distribution plate, the first air distribution channel 205 and the third air distribution channel 207 are both connected to the aforementioned inner air intake channel 2212, and the second air distribution channel 206 and the fourth air distribution channel 208 are both connected to the outer air intake channel 2211.

[0190] Optionally, for the second type of air distribution plate, the first air distribution channel 205 and the third air distribution channel 207 are both connected to the aforementioned first air intake zone 230, and the second air distribution channel 206 and the fourth air distribution channel 208 are both connected to the second air intake channel 232.

[0191] Optionally, for the third type of air distribution plate, the first air distribution channel 205 and the third air distribution channel 207 are both connected to the aforementioned first air intake zone 230, and the second air distribution channel 206 and the fourth air distribution channel 208 are both connected to the second air intake channel 232.

[0192] Optionally, there may be multiple first gas distribution channels 205 on the same ring line, arranged at equal intervals along the circumference of the ring line; similarly, there may be multiple second gas distribution channels 206 on the same ring line, also arranged at equal intervals along the circumference of the ring line; similarly, there may be multiple third gas distribution channels 207 on the same ring line, arranged at equal intervals along the circumference of the ring line. This arrangement of multiple first gas distribution channels on the same ring line allows the gas to flow out simultaneously from multiple locations on the ring line, thereby improving the uniformity of gas output along the circumference of the ring line.

[0193] Multiple first air distribution channels 205 and third air distribution channels 207 are configured one-to-one with multiple first air intake channels 231; and multiple second air distribution channels 206 are configured one-to-one with multiple second air intake channels 232.

[0194] Optionally, the first, second, and third radians can be the same or different.

[0195] Optionally, each annular gas distribution component includes two annular ribs, and the annular channel between the two annular ribs is the gas distribution channel.

[0196] In the upper air distribution plate 290 of this embodiment, a plurality of annular air distribution components are arranged from the inside to the outside on one side plate surface (e.g., the second plate surface) of the upper plate body 291 around the through hole. The plurality of annular air distribution components can be evenly distributed radially on the second plate surface, or they can be non-uniformly arranged on the second plate surface in a predetermined layout.

[0197] In some embodiments, along the radial direction of the upper gas distribution plate 290, two or more annular gas distribution components are sequentially adjacent to each other to form a group of gas channels, so that multiple annular gas distribution components form one or more groups of gas channels in different annular areas of the upper plate 291. The same air intake channel (inner air intake channel or outer air intake channel, first type of gas distribution plate) / first air intake zone 230 (second type of gas distribution plate) / first air intake channel 231 (third type of gas distribution plate) on the lower gas distribution plate 210 are respectively connected to the inner or outer gas distribution channel in each group of gas channels. In this embodiment, the integration of gas distribution channels simplifies the number of burner caps. One burner cap is set on a group of gas channels, and the same number of flame outlet rings are set on the corresponding burner cap according to the number of gas distribution channels on the group of gas channels.

[0198] In this embodiment, the annular zone of the upper plate 291 is determined based on the heating area. The annular zone is divided into an inner annular zone, a middle annular zone, and an outer annular zone. The first gas distribution channel 205 and the second gas distribution channel 206 are adjacent to form a middle annular gas channel located in the middle annular zone, and the third gas distribution channel 207 and the fourth gas distribution channel 208 are adjacent to form an outer annular gas channel located in the outer annular zone. That is, when only the middle annular air intake slot 202 of the lower gas distribution plate 210 is inlet, the gas can be transported to the first gas distribution channel 205 and the third gas distribution channel 207 through the inner air intake channel 2212 / first air intake partition 230 / first air intake channel 231 of the air intake partition component 220, thereby expanding the gas distribution area. Among them, the inner annular gas channel is the gas channel of the inner annular zone.

[0199] In this embodiment, an air supply outlet is further provided on the upper plate 291 of the upper air distribution plate 290, especially for the first and third type air distribution plates. This is to introduce air into the interior during combustion, thereby improving combustion efficiency. The location and shape of the air supply outlet are not limited, and can be designed in conjunction with the air supply inlet 271 / air passage on the lower air distribution plate 210.

[0200] In some embodiments, the air replenishment outlet includes an inner air replenishment outlet 275, which is disposed between the through hole of the upper plate 291 and the inner first annular air distribution member (first annular air distribution member 294), and communicates with the air replenishment inlet 271 / air replenishment channel 270 constructed on the lower air distribution plate 210.

[0201] In some embodiments, the air replenishment outlet further includes an outer air replenishment outlet 276, which is disposed on an upper plate 291 between adjacent annular air distribution members and corresponds to the air replenishment inlet 271 disposed on the lower air distribution plate 210.

[0202] In this embodiment, after the upper air distribution plate 290 and the lower air distribution plate 210 are connected, the inner air replenishment outlet 275 and the outer air replenishment outlet 276 can be connected to the same air replenishment channel 270 (e.g., Figure 1 , Figure 4 and Figure 8 (as shown); it can also be connected to different air supply channels 270.

[0203] like Figure 10 As shown, in the third type of air distribution plate, the inner air replenishment outlet 275 is connected to the inner air inlet channel 272, and the outer air replenishment outlet 276 is connected to the outer air inlet channel 273.

[0204] Optionally, the air replenishment outlets are located on different rings of the upper plate 291, and multiple air replenishment outlets located on the same ring are evenly distributed.

[0205] Optionally, the inner air replenishment outlet 275 is located on the ring line between the through hole of the upper plate 291 and the first inner annular air distribution component.

[0206] Optionally, the outer air replenishment outlet 276 is located on the lower plate 211 between the second air distribution channel 206 and the third air distribution channel 207.

[0207] In this embodiment, the shape of the air supply outlet is not limited, and it is set according to the maximum connection between its location and the air channel to improve the air supply volume.

[0208] Optionally, the inner air supply outlet 275 is configured as a triangle.

[0209] Optionally, the outer air supply outlet 276 is configured as an arc along the loop.

[0210] Of course, in this embodiment of the upper air distribution plate 290, an air outlet structure for communicating with the air intake channel is provided on the upper plate body 291 within the air distribution channel of each annular air distribution component. The air outlet is connected to the inner air intake channel 2212 / first air intake partition 230 / first air intake channel 231 or second air intake channel 232 / outer air intake channel 2211 that its corresponding air distribution channel needs to communicate with. The number and shape of the outlets are not limited and can be determined according to actual needs. According to the air distribution channel in which they are located, the air outlets are defined as the first air outlet 2901, the second air outlet 2902, the third air outlet 2903, and the fourth air outlet 2904, respectively. The first air outlet 2901 is located in the first air distribution channel 205, the second air outlet 2902 is located in the second air distribution channel 206, the third air outlet 2903 is located in the third air distribution channel 207, and the fourth air outlet 2904 is located in the fourth air distribution channel 208.

[0211] Optionally, the air outlet is formed on the lower plate 211 within the air distribution channel, and the air outlets within the same air distribution channel are evenly distributed circumferentially. This improves the uniformity of air output. In this embodiment, while ensuring the structural strength of the upper air distribution plate 290 and meeting the air output requirements, the circumferential length of the air outlet is maximized to increase the air output.

[0212] Optionally, the circumferential length of the air outlet on the outer gas distribution channel is greater than the circumferential length of the air outlet on the inner gas distribution channel. This increases the gas distribution volume on the outer gas distribution channel and improves its heating efficiency.

[0213] Optionally, a ramp structure 298 is provided on the same side edge of the circumferential direction of multiple gas outlets on the same gas distribution channel. This can promote the unidirectional flow of gas after it enters the gas distribution channel and improve the stability of the gas outlet.

[0214] In some embodiments, the upper air distribution plate 290 includes a disc-shaped body (same as the upper plate 291), the disc-shaped body having a through hole and multiple air outlets; the multiple air outlets are distributed on different rings of the disc-shaped body to form air distribution channels. For example... Figure 4 and Figure 5 The upper air distribution plate 290 shown is simple in structure and easy to mold.

[0215] In some embodiments, for the second type of air distribution plate and the third type of air distribution plate, the second circumferential air intake portion 2322 of the second air intake channel 232 of the lower air distribution plate 210 is correspondingly arranged with the outermost annular air distribution member (fourth annular air distribution member 297) of the upper air distribution plate 290 so that the outer peripheral surface of the air distribution plate is flush, which facilitates sealing connection and facilitates assembly with other structural components of the burner.

[0216] Optionally, the first circumferential air intake portion 2312 of the first air intake channel 231 of the lower air distribution plate 210 is correspondingly provided with the annular air distribution component (third annular air distribution component 296) on the second outer side of the upper air distribution plate 290.

[0217] In this embodiment, the remaining annular air distribution components can be arranged as long as they have an overlapping area with the corresponding connected inner air intake channel 2212 / first air intake partition 230 / first air intake channel 231 or outer air intake channel 2211 / second air intake channel 232, and an air outlet structure is opened on the upper plate 291 of the overlapping area for communication.

[0218] In this embodiment, clearance structures are also provided at corresponding positions on the lower gas distribution plate 210 and the upper gas distribution plate 290 for mounting structural components such as the injector tube 320, ignition needle, and thermocouple. The clearance structure can be a clearance hole or a clearance notch. The specific location of the clearance structure is determined based on the position of the injector tube 320, ignition needle, and thermocouple on the burner head. Multiple fixing holes are also provided for bolt fixing connection between the upper gas distribution plate 290 and the lower gas distribution plate 210; these fixing holes include circular holes.

[0219] In this embodiment of the disclosure, the only difference in the construction of the intake partition on the lower air distributor 210 is that the upper air distributor 290 used is universal, i.e., as shown below. Figure 4 The upper air distribution plate 290 structure shown can also be applied to other types of lower air distribution plates 210 to form multiple air distribution plates.

[0220] Combination Figures 1 to 20 As shown, this disclosure provides a burner including the aforementioned gas distribution plate.

[0221] Optionally, the burner may also include components such as a flame cap and a burner head.

[0222] Figure 14 This is a schematic diagram of the structure of a burner provided in an embodiment of this disclosure. Figure 14 As shown, a burner typically consists of a burner cap 100 and a gas supply structure located below the burner cap 100 for supplying gas to the burner. The gas supply structure is used to deliver external combustion gas to the corresponding burner cap within the burner cap 100.

[0223] Generally, the gas supply structure includes one or more of the following: gas distribution plate 200, burner head 300, and air intake assembly 400. The air intake assembly 400 is used to introduce external gas into the burner; the burner head 300 is used to mix and pressurize the external gas and air; and the gas distribution plate 200 is used to distribute the gas introduced into the burner to the combustion gas path corresponding to the burner cap.

[0224] Most existing burners are two-ring or three-ring burners, meaning that the burner cap has two or three rings of flame holes from the inside out. Each ring of flame holes acts as a ring of flame when burning. Each ring of flame corresponds to an independent air supply path consisting of an air inlet pipe, a ring-shaped mixing chamber 310 in the burner head, and an internal channel of the gas distribution plate 200. This structural design results in a single flame pattern, which often cannot meet the heating needs of different cooking scenarios.

[0225] like Figure 19 As shown, the burner cap 100 includes a first annular sub-burner cap 101 and a second annular sub-burner cap 102, with the second annular sub-burner cap 102 fitted around the outer periphery of the first annular sub-burner cap 101. Optionally, the first annular sub-burner cap 101 has two separate annular combustion chambers, one inner and one outer, and similarly, the second annular sub-burner cap 102 also has two separate annular combustion chambers, one inner and one outer, and similarly, the annular combustion chambers correspond to the positions of the corresponding gas distribution channels. The gas distribution plate 200 rectifies the gas flow and sends it into the corresponding annular combustion chamber. The annular combustion chambers within the same annular sub-burner cap do not affect each other, and the interconnected annular combustion chambers in different annular sub-burner caps can burn simultaneously, enabling multiple ignition patterns of the burner cap 100 on the burner.

[0226] Optionally, the burner cap 100 also includes a central burner cap 103, disposed inside the first annular sub-burner cap 101, and concentrically arranged with the first annular sub-burner cap 101 and the second annular sub-burner cap 102; the gas distribution plate also cooperates with the central burner cap 103 to define a central combustion chamber. The central burner cap 103 is connected to the central air intake channel 233 of the gas distribution plate, the central gas distribution channel 209, the central annular mixing chamber 303 of the furnace cavity assembly, and the central air intake pipe 403 of the air intake assembly.

[0227] To achieve the characteristics of stable gas supply, uniform heating, and diverse flame patterns of the burner in this embodiment, this embodiment provides a gas supply structure for the burner. Figure 15 This is a schematic diagram of a gas supply structure for a burner provided in an embodiment of this disclosure. Figure 16This is a schematic diagram of the connection relationship of the gas distribution plate in this embodiment. As shown in the figure, the gas supply structure includes a gas distribution plate 200 and an air intake assembly 400. The gas distribution plate 200 includes an air intake channel 2001 and a gas distribution channel 2002, at least one air intake channel 2001 connecting to a gas distribution channel 2002 located on a non-adjacent loop; the air intake assembly 400 includes a switching device 420 and an air intake pipe 410 corresponding to the air intake channel 2001; the switching device 420 is used to control the conduction state and / or air intake flow of the air intake pipe 410 to adjust the combustion state of the independent gas path corresponding to each gas distribution channel 2002 on the burner.

[0228] Here, the intake assembly 400 delivers external gas to the intake channel of the gas distributor 200. The gas distributor 200 rectifies the gas and sends it into the connected gas distribution channel, supplying gas to the independent gas path on the burner corresponding to the gas distribution channel.

[0229] The gas supply structure provided in this embodiment connects some or all of the non-adjacent gas distribution channels of the gas distribution plate to the same air intake channel. Simultaneously, a switching device 420 is installed on the air intake pipe 410 corresponding to the air intake channel, allowing at least one air intake pipe 410 to supply gas to multiple non-adjacent gas distribution channels through the air intake channel, thereby adjusting the combustion state of the gas path on the burner corresponding to the gas distribution channel. Thus, when multiple air intake pipes 410 are in different states, a certain degree of balanced gas supply is achieved through multiple gas distribution channels connected to the same conductive air intake pipe 410, enabling uniform heat distribution, effectively improving heating uniformity, reducing operational complexity, and allowing for diverse variations in the flame output of the gas stove.

[0230] Figure 17-19 Schematic diagrams of three gas supply structures for supplying gas to a burner provided in embodiments of this disclosure; combined with Figure 16 , Figure 17-19 As shown in the present embodiment, the air supply structure is mainly divided into three categories according to the connection relationship between the air intake channel 2001 and the air distribution channel 2002.

[0231] The first type of air supply structure provided in this embodiment includes an air distribution plate 200 comprising a first air intake channel 231 and a second air intake channel 232, and a first air distribution channel 205, a second air distribution channel 206, and a third air distribution channel 207 located on different rings from the inside out; the first air intake channel 231 is connected to the first air distribution channel 205 and the third air distribution channel 207 respectively; the second air intake channel 232 is connected to the second air distribution channel 206; the air intake assembly 400 includes a first air intake pipe 401 and a second air intake pipe 402 respectively corresponding to the first air intake channel 231 and the second air intake channel 232.

[0232] The first type of gas supply structure provided in this embodiment of the present disclosure achieves communication between the first intake channel 231 and the non-adjacent first gas distribution channel 205 and third gas distribution channel 207 by setting the gas distribution plate as a three-ring gas distribution channel structure. Thus, when adjusting the intake flow rate and / or conduction state of the first intake pipe 401 corresponding to the first intake channel 231, the first gas distribution channel 205 and the third gas distribution channel 207 can be adjusted synchronously to achieve the formation of two rings of fire with a certain spacing and synchronized flame output in the burner. Compared with single-ring fire output, this effectively expands the heating area and improves the uniformity of heating.

[0233] Here, the switching device can be a mechanical valve structure installed on the intake pipe 410, or an electronic valve structure that can be controlled by an input terminal. The input terminal can be a button, panel, mobile terminal, or other smart home appliances, etc.

[0234] Optionally, in the first type of gas supply structure, the switching device installed on the intake pipe 410 includes a first control valve 404 and a second control valve 405. The first control valve 404 is used to adjust the conduction state and / or intake flow of the first intake pipe 401 to simultaneously adjust the combustion state of the independent gas paths corresponding to the first and third gas distribution channels on the burner; the second control valve 405 is used to control the conduction state and / or intake flow of the second intake pipe 402 to adjust the combustion state of the independent gas path corresponding to the second gas distribution channel on the burner.

[0235] Here, two control valves are used to adjust the conduction state and / or airflow of the first intake pipe 401 and the second intake pipe 402, respectively. For example, when the first control valve 404 is in the first state, the first intake pipe 401 is closed, the first intake channel 231 has no air intake, and the first distribution channel 205 and the third distribution channel 207 do not supply gas to the burner; when the first control valve 404 is in the second state, the first intake pipe 401 is open, introducing external gas into the first intake channel 231, and the first distribution channel 205 and the third distribution channel 207 connected to it simultaneously supply gas to the burner, and the gas paths corresponding to the first distribution channel 205 and the third distribution channel 207 on the burner are burned and heated. Optionally, the first control valve 404 can also be set with multiple positions between the first state and the second state to adjust the airflow of the first intake pipe 401. Alternatively, the airflow can be adjusted by separately installing a gas regulating valve on the intake pipe 410.

[0236] Similarly, when the second control valve 405 is in the first state, the second intake pipe 402 is closed, the second intake channel 232 has no air intake, and the second gas distribution channel 206 does not supply gas to the burner; when the second control valve 405 is in the second state, the second intake pipe 402 is open, introducing external gas into the second intake channel 232, and the second gas distribution channel 206 connected to it supplies gas to the burner, and the gas path on the burner corresponding to the second gas distribution channel 206 burns and provides heat. Optionally, the second control valve 405 can also be set with multiple positions between the first and second states to adjust the intake flow rate of the second intake pipe 402.

[0237] Thus, in the first type of gas supply structure, the gas supply status of the first gas distribution channel 205, the second gas distribution channel 206, and the third gas distribution channel 207 can be adjusted through the first control valve 404 and the second control valve 405 to achieve diversified combustion states of the burner. When both the first air inlet pipe 401 corresponding to the first control valve 404 and the second air inlet pipe 402 corresponding to the second control valve 405 are open, the first gas distribution channel 205, the second gas distribution channel 206, and the third gas distribution channel 207 supply gas to the burner. The three-ring gas path on the burner, corresponding to the aforementioned gas distribution channels arranged from the inside out along the ring, burns and heats simultaneously, providing a high-power three-ring gas supply mode for the burner with a large heating area and good uniformity.

[0238] When the first intake pipe 401 corresponding to the first control valve 404 is open and the second intake pipe 402 corresponding to the second control valve 405 is closed, the first gas distribution channel 205 and the third gas distribution channel 207, which are connected to the first intake channel 231, simultaneously supply gas to the burner, while the second gas distribution channel 206, which is connected to the second intake channel 232, does not supply gas to the burner. Therefore, the two gas paths on the burner corresponding to the first gas distribution channel 205 and the third gas distribution channel 207 burn and provide heat simultaneously. The gas path located between these two gas paths, corresponding to the second gas distribution channel 206, stops burning. The gas supply structure provides the burner with a uniform and synchronous dual-ring gas supply mode for both the inner and outer rings. Because there is a certain distance between the first gas distribution channel 205 and the third gas distribution channel 207, the heating in the dual-ring gas supply mode is more uniform.

[0239] When the first intake pipe 401 corresponding to the first control valve 404 is closed and the second intake pipe 402 corresponding to the second control valve 405 is open, the second gas distribution channel 206 supplies gas to the burner. The middle ring gas path corresponding to the second gas distribution channel 206 in the combustion chamber provides combustion and heating, and the gas supply structure provides a middle ring gas supply mode for the burner. Since the second gas distribution channel 206 is located between the first gas distribution channel 205 and the third gas distribution channel 207, the middle ring gas supply mode has a larger heating area and better uniformity compared to a single inner ring or single outer ring gas supply mode.

[0240] The second type of air supply structure provided in this embodiment includes a fourth air distribution channel 208 disposed on the outer ring of the third air distribution channel 207, based on the first type of air supply structure described above; the second air intake channel 232 is also connected to the fourth air distribution channel 208.

[0241] This second type of gas supply structure, by setting the gas distribution plate as a four-ring gas distribution channel structure, connects the first intake channel 231 with the non-adjacent first gas distribution channel 205 and third gas distribution channel 207, and the second intake channel 232 with the non-adjacent second gas distribution channel 206 and fourth gas distribution channel 208. Thus, when adjusting the intake flow rate and / or conductivity of the first intake pipe 401 corresponding to the first intake channel 231, the first gas distribution channel 205 and third gas distribution channel 207 can be adjusted synchronously; similarly, when adjusting the intake flow rate and / or conductivity of the second intake pipe 402 corresponding to the second intake channel 232, the second gas distribution channel 206 and fourth gas distribution channel 208 can be adjusted synchronously. This provides three gas supply modes for the burner, effectively expanding the heating area and improving heating uniformity compared to single-ring adjustment.

[0242] Optionally, in the second type of gas supply structure, the switching device installed on the intake pipe 410 includes a first control valve 404 and a second control valve 405. The first control valve 404 functions the same as in the first type of gas supply structure, simultaneously adjusting the combustion state of the independent gas paths corresponding to the first gas distribution channel 205 and the third gas distribution channel 207 on the burner. The second control valve 405, in the second type of gas supply structure, adjusts the conduction state and / or intake flow rate of the second intake pipe 402 to simultaneously adjust the combustion state of the independent gas paths corresponding to the second gas distribution channel 206 and the fourth gas distribution channel 208 on the burner.

[0243] Here, when the second control valve 405 is in the first state, the second intake pipe 402 is closed, and the second intake channel 232 has no air intake. Therefore, the second distribution channel 206 and the fourth distribution channel 208 do not supply gas to the burner. When the second control valve 405 is in the second state, the second intake pipe 402 is open, introducing external gas into the second intake channel 232. Then, the second distribution channel 206 and the fourth distribution channel 208 connected to it simultaneously supply gas to the burner, and the burner provides combustion and heating through the gas paths corresponding to the second distribution channel 206 and the fourth distribution channel 208, respectively. Optionally, the second control valve 405 can be set with multiple positions between the first and second states to adjust the intake flow rate of the second intake pipe 402. Alternatively, the intake flow rate can be adjusted by separately installing a gas regulating valve on the intake pipe 410.

[0244] Thus, in the second type of gas supply structure, the gas supply status of the first gas distribution channel 205, the second gas distribution channel 206, the third gas distribution channel 207, and the fourth gas distribution channel 208 can be adjusted through the first control valve 404 and the second control valve 405 to achieve diversified combustion states of the burner. For example, when the first control valve 404 and the second control valve 405 control the first air inlet pipe 401 and the second air inlet pipe 402 to be open respectively, the four ring gas distribution channels simultaneously supply gas to the burner. Then, the four ring gas paths on the burner corresponding to the gas distribution channels arranged from the inside to the outside along the ring line burn and provide heat simultaneously, providing the burner with a high-firepower four-ring gas supply mode, with a large heating area and good uniformity.

[0245] When either the first control valve 404 or the second control valve 405 individually controls the corresponding intake pipe 410 to open, and the other intake pipe 410 is closed, the spaced double-ring gas distribution channels simultaneously supply gas to the burner. The two ring gas paths on the burner corresponding to the gas distribution channels supplying gas burn simultaneously for heating. The gas supply structure provides the burner with two uniform and synchronous double-ring gas supply modes. Because there is a certain distance between the first gas distribution channel 205 and the third gas distribution channel 207, or between the second gas distribution channel 206 and the fourth gas distribution channel 208, the heating in the double-ring gas supply mode is more uniform. Since the heating area of ​​the corresponding gas path on the burner for the second gas distribution channel 206 is larger than that for the first gas distribution channel 205, and the heating area of ​​the corresponding gas path for the fourth gas distribution channel 208 is larger than that for the third gas distribution channel, the heating effect when the second control valve 405 controls the second intake pipe 402 to open alone is better than when the first control valve 404 controls the first intake pipe 401 to open alone, providing more heat.

[0246] The third type of air supply structure provided in this embodiment includes an air distribution plate that, based on the second type of air supply structure described above, further includes a central air intake channel 233 and a central air distribution channel 209 disposed on the inner ring line of the first air distribution channel 205; the air intake assembly 400 also includes a central air intake pipe 403 corresponding to the central air intake channel 233.

[0247] This third type of gas supply structure, by adding a central gas distribution channel 209, sets the gas distribution plate as a five-ring gas distribution channel structure. This connects the central intake channel 233 with the central gas distribution channel 209. The first intake channel 231 connects with the non-adjacent first gas distribution channel 205 and the third gas distribution channel 207, and the second intake channel 232 connects with the non-adjacent second gas distribution channel 206 and the fourth gas distribution channel 208, providing a five-ring gas supply mode for the burner. This expands the gas distribution area and the gas flow area on the burner. The multi-ring gas supply mode increases the diversity of flame output methods and the flexibility of the heating area, meeting various cooking needs.

[0248] Optionally, such as Figure 17 As shown, based on the second type of gas supply structure, in the third type of gas supply structure, the switching device further includes a central control valve 406, which is used to control the conduction state and / or intake flow of the central intake pipe 403, so as to adjust the combustion state of the independent gas path corresponding to the central gas distribution channel 209 on the burner.

[0249] Here, when the central control valve 406 is in the first state, the central intake pipe 403 is closed, the central intake channel 233 has no air intake, and the central distribution channel 209 does not supply gas to the burner. When the central control valve 406 is in the second state, the central intake pipe 403 is open, introducing external gas into the central intake channel 233, and the central distribution channel 209 connected to it supplies gas to the burner, where combustion and heating occur in the gas path corresponding to the central distribution channel 209 in the burner. Optionally, the central control valve 406 can be set with multiple positions between the first and second states to adjust the intake flow rate of the central intake pipe 403. Alternatively, the intake flow rate can be adjusted by separately installing a gas regulating valve on the intake pipe 410.

[0250] Thus, the central control valve 406, the first control valve 404, and the second control valve 405 are used to control the conduction state and / or air flow of the central air intake pipe 403, the first air intake pipe 401, and the second air intake pipe 402, respectively, so as to adjust the conduction state of the air distribution channel corresponding to the air intake pipe 410.

[0251] Optionally, such as Figure 18 As shown, based on the second type of gas supply structure described above, in the third type of gas supply structure, the second control valve 405 of the switching device, in addition to adjusting the conduction state and / or air flow rate of the second air intake pipe 402, is also used to adjust the conduction state and / or air flow rate of the central air intake pipe 403. While simultaneously adjusting the second gas distribution channel 206 and the fourth gas distribution channel 208, the second control valve 405 can also adjust the combustion state of the independent gas path corresponding to the central gas distribution channel 209 on the burner.

[0252] Here, when the second control valve 405 is used to adjust the conduction state and / or intake flow of the central intake pipe 403 and the second intake pipe 402, the combustion state of the corresponding independent air passage on the burner includes at least the following:

[0253] When the second control valve 405 is in the first state, the central intake pipe 403 is open, and the second intake pipe 402 is closed. The central intake pipe 403 introduces external gas into the central intake channel 233, and the central distribution channel 209 connected to it supplies gas to the burner, so the corresponding independent gas path on the burner burns; the second intake channel 232 has no gas intake, and the second distribution channel 206 and the fourth distribution channel 208 connected to it do not supply gas to the burner. In this state, combined with the state of the first control valve 404, the gas supply structure can realize a central loop gas supply mode for the burner only (the first control valve 404 is in the first state, and the first distribution channel 205 and the third distribution channel 207 do not supply gas to the burner), or a small three-loop gas supply mode (the first control valve 404 is in the second state, and the first distribution channel 205 and the third distribution channel 207 supply gas to the burner simultaneously).

[0254] When the second control valve 405 is in the second state, both the central intake pipe 403 and the second intake pipe 402 are open, introducing external gas into the central intake channel 233, the second distribution channel 206, and the fourth distribution channel 208. At this time, the corresponding independent gas paths of the central distribution channel 209, the second distribution channel 206, and the fourth distribution channel 208 on the burner burn simultaneously. In this state, combined with the state of the first control valve 404, the gas supply structure can achieve either a large three-ring gas supply mode (the first control valve 404 is in the first state, and the first distribution channel 205 and the third distribution channel 207 do not supply gas to the burner) or a five-ring gas supply mode (the first control valve 404 is in the second state, and the first distribution channel 205 and the third distribution channel 207 simultaneously supply gas to the burner). In this state, the large three-ring gas supply mode, compared to the small three-ring gas supply mode, has a larger combustion area and a wider heating area on the burner due to the open gas path, resulting in better heating performance.

[0255] When the second control valve 405 is in the third state, the central air intake pipe 403 is closed, and the corresponding central air intake channel 233 is not supplied with air; the second air intake pipe 402 is open, and the second air distribution channel 206 and the fourth air distribution channel 208 connected to it simultaneously supply air to the burner. At this time, the independent air path corresponding to the central air distribution channel 209 on the burner stops combustion, while the independent air paths corresponding to the second air distribution channel 206 and the fourth air distribution channel 208 on the burner burn simultaneously. In this state, combined with the state of the first control valve 404, the air supply structure can realize the burner's large dual-ring air supply mode (the first control valve 404 is in the first state, and the first air distribution channel 205 and the third air distribution channel 207 do not supply air to the burner), or the four-ring air supply mode (the first control valve 404 is in the second state, and the first air distribution channel 205 and the third air distribution channel 207 simultaneously supply air to the burner).

[0256] When the second control valve 405 is closed, the central air intake pipe 403 and the second air intake pipe 402 are simultaneously closed, and neither the corresponding central air intake channel 233 nor the second air intake channel 232 supplies gas to the burner. At this time, when the first control valve 404 is in the second state, the burner adopts a small dual-ring gas supply mode. Compared with the large three-ring gas supply mode, the small three-ring gas supply mode in this state can achieve a stable and uniform heating effect with low heat output.

[0257] Thus, by switching the device, the gas supply structure can be adjusted to control the gas supply state of the burner, thereby controlling the combustion state of the corresponding gas path on the burner. By changing the gas intake of the gas supply path, multiple gas supply modes can be achieved, enabling the burner to have multiple flame patterns and adapt to different cooking needs.

[0258] Furthermore, to achieve the characteristics of stable gas supply, uniform heating, and diverse flame patterns of the burner in this embodiment, a gas supply structure for the burner is also provided. Figure 19 A schematic diagram of the gas supply structure is shown, which includes an air intake assembly 400, a burner head 300, and a gas distribution plate 200. The burner head is positioned between the air intake assembly 400 and the gas distribution plate, and is used to uniformly and pressurize the external gas introduced through the air intake pipe 410 before inputting it into the air intake channel of the gas distribution plate. The gas distribution plate 200 is mounted on the burner head 300 to distribute the gas introduced into the burner to the combustion gas path corresponding to the burner cap.

[0259] Optionally, the burner head 300 includes multiple concentrically arranged annular mixing chambers 310; the air inlet end of each annular mixing chamber 310 is connected to the air inlet pipe 410; the air inlet end of the air inlet channel 2001 is connected to the corresponding mixing chamber 310; wherein, the air inlet ends of adjacent air inlet channels 2001 are arranged on different rings at the bottom of the gas distribution plate 200, and are staggered to correspond to the corresponding annular mixing chamber 310.

[0260] Here, external gas enters the corresponding mixing chamber 310 in the burner head 300 through different air inlet pipes 410. After being mixed evenly in the annular mixing chamber, the gas is rectified by the air inlet channel 2001 of the gas distribution plate 200 and then enters the connected gas distribution channel 2002 to supply gas to the independent gas path on the burner corresponding to the gas distribution channel 2002.

[0261] The gas supply structure for the burner provided in this embodiment, in which the burner head 300 and the gas distribution plate 200 cooperate, by staggering the air intake end of the air intake channel 2001, allows the gas in the annular mixing chamber 310 to enter the corresponding air intake channel 2001 and be distributed to the gas distribution channels 2002 on different rings. The gas in the same annular mixing chamber 310 can be supplied to the gas distribution channels 2002 on non-adjacent rings, thereby expanding the gas distribution area, increasing the diversity of flame output methods, increasing the flexibility of heating area, meeting various cooking needs, effectively improving heating uniformity, and reducing the complexity of operation.

[0262] Optionally, the number of annular mixing chambers 310 corresponds to the number of intake channels 2001. The intake channel 2001 that connects to the same air distribution channel 2002 has its intake end connected to the same annular mixing chamber 310.

[0263] Optionally, such as Figure 20 As shown, corresponding to the air intake channel 2001 in the above embodiment, the annular mixing chamber 310 includes a central annular mixing chamber 303, a first annular mixing chamber 301, and a second annular mixing chamber 302, arranged sequentially from the inside out, or the number of annular mixing chambers can be set according to the number of air intake channels. In this embodiment, the first annular mixing chamber 301 is connected to the first air intake channel 231, the second annular mixing chamber 302 is connected to the second air intake channel 232, and the central annular mixing chamber 303 is connected to the central air intake channel 233. This achieves the corresponding connection between the burner head 300 and the gas distribution plate 200.

[0264] On the other hand, the number of annular mixing chambers 310 corresponds to the number of intake pipes 410. The intake pipes 410 used to supply air to the same air distribution channel 2002 have their intake ends connected to the same annular mixing chambers 310.

[0265] Optionally, corresponding to the air inlet pipe 410 in the above embodiment, the first annular mixing chamber 301 of the annular mixing chamber is connected to the first air inlet pipe 401, the second annular mixing chamber 302 is connected to the second air inlet pipe 402, and the central annular mixing chamber 303 is connected to the central air inlet pipe 403. This achieves corresponding connection between the burner head 300 and the gas distribution plate 200.

[0266] In this embodiment of the disclosure, the burner includes the aforementioned first type of gas distribution plate, second type of gas distribution plate, or third type of gas distribution plate, depending on the structure of the gas distribution plate, and correspondingly, a first type of burner, a second type of burner, or a third type of burner is obtained.

[0267] The burner of this disclosure embodiment can provide a flexible and varied heating area, and has a large heating area, making it suitable for a variety of cooking requirements.

[0268] This disclosure provides a gas stove, including the aforementioned burner.

[0269] In some embodiments, the gas stove includes one or more of the aforementioned burners. When the gas stove includes multiple aforementioned burners, the burners used may be different.

[0270] Optionally, the gas stove includes one or any two or three of the following: Class I burners, Class II burners, and Class III burners.

[0271] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A gas distribution plate, characterized by, The application relates to a gas distribution disc, which comprises the following parts: a lower gas distribution disc, which has one or more first gas inlet sub-zones; the lower gas distribution disc comprises: a lower disc body, which is provided with a through inner annular member at the center of a first disc surface and is provided with a plurality of annular gas inlet grooves around the inner annular member on a second disc surface; a first partition rib, which has a first arc segment and a first straight segment, and the two ends of the first arc segment are respectively provided with the first straight segment; the first partition rib is arranged on the first disc surface of the lower disc body, the end of the first straight segment is connected to the inner annular member, and the area between the first partition rib and part of the inner annular member forms a first gas inlet sub-zone; the first gas inlet sub-zone is communicated with one annular gas inlet groove; an upper gas distribution disc, which comprises gas distribution channels located at different ring lines from inside to outside, and part or all of the gas distribution channels of non-adjacent ring lines are communicated with the one or more first gas inlet sub-zones.

2. The gas distribution plate of claim 1, wherein, The first partition rib comprises a first partition rib I and / or a first partition rib II; wherein the first partition rib I refers to that the first arc segment is an arc greater than or equal to a semicircular arc, and the first partition rib II refers to that the first arc segment is an arc smaller than a semicircular arc.

3. The gas distribution plate of claim 1, wherein, The number of the first partition ribs is one or more; when the number of the first partition ribs is more than one, the plurality of first partition ribs are arranged at intervals around the inner annular member, and the first arc segments of the plurality of first partition ribs are located on the same ring line.

4. The gas distribution plate of claim 1, wherein, The lower gas distribution disc further comprises: a second partition rib, which has a second arc segment and a second straight segment, and the first end of the second arc segment is provided with the second straight segment; the second partition rib is arranged in the first gas inlet sub-zone, and the second end of the second arc segment is connected to the first straight segment of the first partition rib, and the end of the second straight segment is connected to the inner annular member; the outer side of the second partition rib and the first partition rib form a first gas inlet channel; and the first gas inlet channel is communicated with the annular gas inlet groove on the inner side.

5. The gas distribution disc according to claim 4, wherein the end of the first straight segment of the first partition rib for forming the first gas inlet sub-zone is bent to form a first bent segment, the first bent segment is connected with the adjacent first straight segment, and a communication opening is formed on the lower disc body between the inner annular member and the first bent segment, and is communicated with the annular gas inlet groove on the inner side.

6. The gas distribution plate of any of claims 1 to 5, wherein, The lower gas distribution disc further comprises: one or more second gas inlet sub-zones, which are provided with second gas inlet channels; the second gas inlet channels are communicated with part of the gas distribution channels of the upper gas distribution disc.

7. The gas distribution plate of claim 6, wherein, When the lower gas distribution disc comprises the first partition rib, the lower gas distribution disc further comprises: a third annular partition rib, which is arranged outside the first partition rib; the area between the first partition rib and the third annular partition rib forms a second gas inlet channel; and the second gas inlet channel comprises a communicated second radial gas inlet part and a second circumferential gas inlet part.

8. The gas distribution plate of any of claims 1 to 5, wherein, The upper gas distribution disc comprises: an upper disc body, which is provided with a through hole at the center; A plurality of annular gas distribution members are arranged on the one side disc surface of the upper disc body from inside to outside around the through hole; each of the annular gas distribution members is configured with a gas distribution passage; the gas distribution passages of some or all of the non-adjacent annular gas distribution members are in communication with the first gas inlet sub-zone on the lower gas distribution disc; When the lower gas distribution disc includes a second gas inlet passage, the gas distribution passages of the remaining annular gas distribution members are in communication with the second gas inlet passage; Alternatively, the upper gas distribution disc includes a disc-shaped body, the disc-shaped body is configured with a through hole and a plurality of gas outlet ports; a plurality of gas distribution ports are distributed on different ring lines of the disc-shaped body to form a gas distribution passage.

9. A burner characterized by, A gas distribution disc as claimed in any one of claims 1 to 8.

10. A gas hob, characterized in that A combustor as claimed in claim 9.

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