Stove burner and stove

Abstract

The utility model relates to a stove combustion device and a stove. The stove burner comprises a gas distribution disc used for distributing gas, an inner ring gas structure, an outer ring gas structure and a secondary air supplementing structure, and the inner ring gas structure comprises an inner ring flow channel and an inner fire cover; the outer ring fuel gas structure comprises an outer ring flow channel for conveying fuel gas, and the outer ring flow channel is connected into the gas distribution disc; the secondary air supplementing structure comprises secondary air flow channels, the secondary air flow channels are at least distributed on the two sides of the inner ring flow channel, so that air output by outlets of the secondary air flow channels at least escapes outwards from the two sides of the inner ring flow channel, and the secondary air flow channels and the inner ring flow channel are mutually independent. According to the stove combustor, mutual interference of airflow in the two flow channels can be avoided, negative pressure generated by secondary air cannot directly affect combustion of an inner ring, and the situation that the combustion effect of the inner ring is affected by supplementation of the secondary air is greatly reduced; secondary air is supplemented at least from the two sides of the inner ring flow channel, and the combustion effect can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking utensils, in particular to a cooking utensil burner and a cooking utensil. BACKGROUND

[0002] The burner used by a household gas stove is a low-pressure burner, which is generally classified into an injection type, a blowing type and a natural air induction type according to the air supplementing mode. Most burners are injection type burners, and the working principle thereof is to suck air near a nozzle by a gas jet to form primary air supplementing, and to mix the gas and air inside the burner, and then to burn at a fire hole position.

[0003] The injection type burner has the problem of insufficient combustion during combustion, which can be solved by supplementing secondary air.

[0004] However, the existing secondary air supplementing mode is active air supplementing, and the primary air injection capacity of the inner ring system is weak, which affects the combustion effect of the inner ring when supplementing secondary air. CONTENT OF THE INVENTION

[0005] Therefore, the present application provides a cooking utensil burner and a cooking utensil to solve at least one problem in the background art.

[0006] In a first aspect, the present application provides a cooking utensil burner, which comprises:

[0007] A gas distribution disc for distributing gas;

[0008] An inner ring gas structure comprising an inner ring flow channel for conveying gas and an inner fire cover, the inner ring flow channel being connected to the middle of the gas distribution disc, and the inner fire cover being arranged above the outlet of the inner ring flow channel;

[0009] An outer ring gas structure comprising an outer ring flow channel for conveying gas and an outer fire cover, the outer ring flow channel being connected to the gas distribution disc, and the outer fire cover being arranged above the outlet of the outer ring flow channel, the outer fire cover being a ring structure, and the inner fire cover being located in the middle of the outer fire cover;

[0010] A secondary air supplementing structure comprising a secondary air flow channel, the secondary air flow channel being connected to the gas distribution disc and being distributed on at least both sides of the inner ring flow channel, so that the air output from the outlet of the secondary air flow channel escapes outward from at least both sides of the inner ring flow channel, and the secondary air flow channel is independent of the inner ring flow channel.

[0011] In an optional embodiment of the first aspect of the present application, the inner fire cover is arranged directly above the outlet of the inner ring flow channel, and the secondary air flow channel is arranged around the inner ring flow channel, so that the air output from the secondary air flow channel flows uniformly around the inner fire cover.

[0012] In combination with the first aspect of the present application, in an optional embodiment, the middle part of the gas distribution disc is provided with a first chamber for mixing primary air into the inner ring flow channel and a second chamber for mixing secondary air uniformly, the first chamber is in communication with the inner ring flow channel;

[0013] The second chamber surrounds the first chamber, the inlet of the second chamber is in communication with the secondary air flow channel, and the outlet of the second chamber is annular and surrounds the outer fire cover.

[0014] In combination with the first aspect of the present application, in an optional embodiment, the first chamber is provided with a self-suction port for mixing air, or the inlet or middle part of the inner ring flow channel is provided with an air suction assembly for mixing air.

[0015] In combination with the first aspect of the present application, in an optional embodiment, the gas distribution disc or the outer fire cover is provided with a self-suction port for mixing air, or the inlet or middle part of the outer ring flow channel is provided with an air suction assembly for mixing air.

[0016] In combination with the first aspect of the present application, in an optional embodiment, the secondary air supplementing structure further comprises a fan, the fan is arranged at the inlet of the secondary air flow channel, and air flows to the outer fire cover through the secondary air flow channel and the second chamber under the action of the fan.

[0017] In combination with the first aspect of the present application, in an optional embodiment, the cooking appliance burner further comprises a flow regulating member, the flow regulating member is arranged at the outlet end of the second chamber, and the flow regulating member is provided with a plurality of through holes.

[0018] In combination with the first aspect of the present application, in an optional embodiment, the bottom of the second chamber is provided with a wind guide structure that is in butt joint with the secondary air flow channel, and the wind guide structure is configured to form a rotating air flow of the air input by the secondary air flow channel in the second chamber.

[0019] In combination with the first aspect of the present application, in an optional embodiment, the wind guide structure is one or more air guide ports, and the included angle between the flow direction of the air guide port and the horizontal plane ranges from 40 to 50 degrees.

[0020] In combination with the first aspect of the present application, in an optional embodiment, the second chamber gradually expands along the air outflow direction.

[0021] In combination with the first aspect of the present application, in an optional embodiment, the gas distribution disc is provided with an outer ring groove that surrounds the outside of the second chamber, the end of the outer ring flow channel is connected to the outer ring groove, the outer fire cover is arranged on the gas distribution disc and forms an outer ring combustion chamber with the outer ring groove, and the end of the outer ring flow channel is in communication with the outer ring combustion chamber.

[0022] In a second aspect, the embodiments of the present application provide a stove, which comprises the stove burner according to any one of the first aspect.

[0023] The secondary air flow channel and the inner ring flow channel of the stove burner provided by the embodiments of the present application are independent of each other, which not only avoids the interference of the air flows in the two flow channels with each other, but also makes the negative pressure generated by the secondary air not directly affect the inner ring combustion. Since the secondary air at least flows upward from both sides of the inner ring flow channel to the vicinity of the inner fire cover and then flows outward to the outer fire cover to supplement air, the flame of the inner fire cover is prevented from being deflected to one side due to the influence of the air flow on one side, thereby greatly reducing the influence of the secondary air supplement on the combustion effect of the inner ring. In addition, the flow path of the secondary air is enriched, so that the air around the inner fire cover and the outer fire cover can be more uniformly and supplementally supplemented, thereby improving the combustion effect.

[0024] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the specification and illustrate illustrative embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0026] Figure 1 The overall structural schematic diagram of the stove burner provided by the embodiments of the present application is shown in the figure;

[0027] Figure 2 The exploded structural schematic diagram of the stove burner provided by the embodiments of the present application is shown in the figure;

[0028] Figure 3 The top view of the stove burner provided by the embodiments of the present application is shown in the figure;

[0029] Figure 4 The sectional view of the stove burner provided by the embodiments of the present application is shown in the figure; Figure 3 The sectional view of the stove burner provided by the embodiments of the present application is shown in the figure;

[0030] Figure 5 The sectional view of the stove burner provided by the embodiments of the present application is shown in the figure; Figure 3 The sectional view of the stove burner provided by the embodiments of the present application is shown in the figure;

[0031] Figure 6 The sectional view of the stove burner provided by the embodiments of the present application is shown in the figure; Figure 3 The sectional view of the stove burner provided by the embodiments of the present application is shown in the figure;

[0032] Figure 7 The sectional view of the stove burner provided by the embodiments of the present application is shown in the figure;

[0033] Figure 8A perspective view of a gas distribution disc in a cooking burner according to another embodiment of the present application is provided;

[0034] Figure 9 A perspective view of a gas distribution disc in a cooking burner according to another embodiment of the present application is provided; Figure 7 A cross-sectional view taken at B-B.

[0035] Reference signs:

[0036] 100, a cooking burner;

[0037] 10, an inner ring gas structure; 11, an inner ring flow channel; 111, an inner ring mixing flow channel; 112, an inner ring gas flow channel; 12, an inner fire cover; 121, an inner fire hole; 13, an inner ring nozzle;

[0038] 20, a secondary air supplement structure; 2a, a secondary air flow channel; 21, a secondary air inlet flow channel; 22, a secondary air outlet flow channel; 23, a fan;

[0039] 30, an outer ring gas structure; 31, an outer ring flow channel; 32, an outer fire cover; 321, an outer fire hole;

[0040] 40, a gas distribution disc; 41, a first chamber; 42, a second chamber; 43, an outer ring groove; 43a, an outer ring combustion chamber; 44, a primary air flow channel;

[0041] 50, a flow regulating member; 51, a through hole;

[0042] 61, an ignition needle; 62, a thermocouple;

[0043] 70, an air guide structure; 71, an air guide opening. DETAILED DESCRIPTION

[0044] In order to make the technical scheme and beneficial effects of the present application more obvious and easy to understand, the following will be described in detail by way of specific embodiments. The drawings are not necessarily drawn to scale, and local features can be enlarged or reduced to more clearly show the details of local features; unless otherwise defined, the technical and scientific terms used herein have the same meaning as the technical and scientific terms in the technical field to which the present application belongs.

[0045] In the description of the present application, the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of simplified description of the present application, and do not indicate that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, i.e. cannot be understood as limiting the present application.

[0046] In the utility model, the terms "first", "second" are only used for the purpose of clear description, and cannot be understood as relative importance of the indicated features or quantity of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc. The meaning of "several" is at least one, such as one, two, three, etc. Except for the explicit specific limitation.

[0047] In the utility model, unless otherwise explicitly limited, the terms "mount", "connect", "connect", "fix", "set" and the like should be understood in a broad sense. For example, "connect" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0048] In the utility model, unless otherwise explicitly limited, the first feature "on", "over", "above" and "upper", "below", "under", "below" or "below" of the second feature can be direct contact of the first feature and the second feature, or indirect contact of the first feature and the second feature through intermediate medium. Moreover, the first feature "over", "above" and "upper" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than the horizontal height of the second feature. The first feature "under", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0049] The related art, the secondary air supplement channel is arranged on the same side of the inner ring ejection port, and the inner ring primary air ejection capacity is weak, when the secondary air is supplemented, the secondary air flow exists the influence on the inner ring combustion, and the combustion effect of the inner ring is affected.

[0050] Therefore, based on this, the secondary air flow channel 2a of the stove burner 100 provided by the embodiment of the application is independent of the inner ring flow channel 11 and is a concentric structure, which not only can avoid the interference of the air flow in the two flow channels with each other, but also can make the negative pressure generated by the secondary air not directly affect the inner ring combustion, greatly reduce the influence of the secondary air supplement on the combustion effect of the inner ring. In addition, because the secondary air is uniformly supplemented from the periphery of the inner ring combustion, the combustion effect of the inner ring can be improved.

[0051] It should be noted that the primary air is natural induction, and the secondary air is active air supplement.

[0052] Specifically, referring to Figure 1 and Figure 2 The stove burner 100 provided by the embodiment of the present application comprises a gas distribution disc 40, an inner ring gas structure 10, a secondary air supplement structure 20 and an outer ring gas structure 30.

[0053] The inner ring gas structure 10 comprises an inner ring flow channel 11 and an inner fire cover 12, the inner fire cover 12 is arranged above the outlet of the inner ring flow channel 11, and the inner ring flow channel 11 is vertically arranged at the middle part of the gas distribution disc 40. It can be understood that, in the use process, the extension direction of the inner ring flow channel 11 is the vertical direction, that is, the axial direction of the inner ring flow channel 11, that is, Figure 1 The arrow s1 direction shown in the figure.

[0054] The secondary air supplement structure 20 has a secondary air flow channel 2a, the secondary air flow channel 2a is connected to the gas distribution disc 40, and is distributed on at least two sides of the inner ring flow channel 11, so that the air output from the outlet of the secondary air flow channel 2a at least escapes from the two sides of the inner ring flow channel to the inner fire hole 121 combustion position of the inner fire cover 12, to supplement the secondary air, and the air flow generated by the secondary air surrounds the inner fire hole 121 combustion position, so that the air flow generated by the secondary air does not affect the inner ring primary air flow, and the uniform supplement of the secondary air to the inner ring can improve the combustion effect of the inner ring.

[0055] The outer ring gas structure 30 comprises an outer ring flow channel 31 and an outer fire cover 32, the outer ring flow channel 31 is located on one side of the inner ring flow channel 11 and the secondary air flow channel 2a, the outer ring flow channel 31 is connected to the gas distribution disc 40, and the outer fire cover 32 is arranged above the outlet of the outer ring flow channel 31.

[0056] In an optional embodiment, the outer fire cover 32 is arranged on the gas distribution disc 40 of the stove burner 100, the end of the outer ring flow channel 31 is connected to the gas distribution disc 40, the gas distribution disc 40 is provided with an outer ring groove 43, an outer ring combustion chamber 43a is formed between the outer fire cover 32 and the outer ring groove 43, and the end of the outer ring flow channel 31 communicates with the outer ring combustion chamber 43a.

[0057] In an optional embodiment, the inner fire cover 12 is arranged directly above the outlet of the inner ring flow channel 11, and the secondary air flow channel 2a is arranged around the inner ring flow channel 11, so that the air output by the secondary air flows uniformly around the inner fire cover 12, which can further improve the uniformity of the secondary air supplement to the inner ring combustion, thereby improving the combustion effect.

[0058] In an optional embodiment, referring to Figures 2 to 4, the gas distribution disc 40 is provided with a first chamber 41, the first chamber 41 is located in the middle of the gas distribution disc 40. The inner ring flow channel 11 includes an inner ring mixing flow channel 111 and an inner ring gas flow channel 112, the inner ring mixing flow channel 111 communicates with the inner ring gas flow channel 112. The first chamber 41 is the inner ring mixing flow channel 111. The primary air and the inner ring gas are mixed in the first chamber 41, and are burned at the inner fire hole 121 of the inner fire cover 12 communicating with the first chamber 41.

[0059] The inner ring gas structure 10 further includes an inner ring nozzle 13 connected to the inner ring gas flow channel 112 near the end of the inner ring mixing flow channel 111, the inner ring nozzle 13 is used to inject the gas in the inner ring gas flow channel 112 into the inner ring mixing flow channel 111 at a certain speed. The inner fire cover 12 is covered on the inner ring mixing flow channel 111, the side wall of the inner fire cover 12 is provided with a plurality of inner fire holes 121, the inner fire holes 121 are distributed circumferentially around the axis of the inner ring mixing flow channel 111, so that the gas in the inner ring mixing flow channel 111 is used as fuel and the primary air is used as combustion-supporting agent, and is ignited and burned at the inner fire hole 121 under the action of the ignition needle 61. The ignition needle 61 ignites the gas by electric spark, and the stove burner 100 further includes a thermocouple 62 for detecting whether the flame exists, if the flame is extinguished, the gas supply can be automatically cut off.

[0060] In an optional embodiment, the gas distribution disc 40 is further provided with a second chamber 42, the second chamber 42 surrounds the first chamber 41, the inlet of the second chamber 42 communicates with the secondary air flow channel 2a, and the outlet of the second chamber 42 is annular and surrounds the outer fire cover 32. The secondary air flow channel 2a includes a secondary air inlet flow channel 21 and a secondary air outlet flow channel 22, the secondary air inlet flow channel 21 communicates with the secondary air outlet flow channel 22. The second chamber 42 is the secondary air outlet flow channel 22.

[0061] The second chamber 42 surrounds the first chamber 41, when the secondary air is discharged from the second chamber 42, it can uniformly contact the flame burning at the inner fire hole 121 of the inner fire cover 12, and further can ensure the stability of the inner ring combustion.

[0062] In the radial direction of the inner ring gas flow channel 112, the second chamber 42 is located between the first chamber 41 and the outer ring combustion chamber, which can also be understood that the outlet end of the secondary air flow channel 2a is located between the outer fire cover 32 and the inner fire cover 12, so that the air discharged from the secondary air flow channel 2a can not only provide combustion-supporting agent for the inner ring combustion but also provide combustion-supporting agent for the outer ring combustion; in addition, the secondary air flow channel 2a, the inner fire cover 12 and the outer fire cover 32 are concentric structures, which can provide relatively uniform combustion-supporting agent for the inner ring combustion and the outer ring combustion, and ensure the stability of the inner and outer ring combustion.

[0063] In an optional embodiment, the inner diameter of the inner ring mixing flow channel 111 is greater than the inner diameter of the inner ring gas flow channel 112.

[0064] The smaller inner diameter of the inner ring gas flow channel 112 can increase the inner diameter of the secondary air inlet flow channel 21, improve the space utilization rate between the outer ring flow channel 31 and the inner ring gas flow channel 112, and improve the overall structural compactness and integration of the stove burner 100; in addition, due to the larger secondary air inlet flow channel 21, a low-wind fan 23 with lower cost can meet the demand, thereby reducing the overall cost of the stove burner 100.

[0065] In an optional embodiment, the secondary air supplementing structure 20 further comprises a fan 23 connected to the secondary air inlet flow channel 21, and the fan 23 is arranged at the inlet of the secondary air flow channel, and the air is discharged after entering the secondary air outlet flow channel 22 through the secondary air inlet flow channel 21.

[0066] The fan 23 is connected to the secondary air inlet channel, greatly reducing the distance between the fan 23 and the secondary air inlet channel, which can ensure the airflow speed entering the secondary air inlet channel, thereby improving the secondary air supplementing effect.

[0067] In an optional embodiment, the stove burner 100 further comprises a flow regulating piece 50 connected to the outlet end of the second chamber 42, and the flow regulating piece 50 is provided with a plurality of through holes 51 through which the air is discharged. The plurality of through holes 51 provided on the flow regulating piece 50 can reduce the flow rate of the secondary air discharged from the second chamber 42, which can greatly reduce the influence of the excessive flow rate of the secondary air on the stability of combustion.

[0068] In an optional embodiment, please refer to Figure 2 and Figure 6 The gas distribution disc 40 is provided with a primary air flow channel 44, both ends of the primary air flow channel 44 are in communication with the outside of the stove burner 100, the primary air flow channel 44 penetrates through the second chamber 42 and is in communication with the first chamber 41.

[0069] It can be understood that the primary air flow channel 44 is in communication with the inner ring mixing flow channel 111, and the gas and the primary air are mixed in the inner ring mixing flow channel 111 and flow to the inner fire hole 121 of the inner fire cover 12 for combustion. Both ends of the primary air flow channel 44 are in communication with the outside air, which can ensure the effective supplement of the primary air during the inner ring combustion and ensure the combustion effect of the inner ring combustion.

[0070] It can also be understood that the connection between the inner ring mixing flow channel 111 and the primary air flow channel 44 forms a self-suction port to meet the natural suction of the primary air from the self-suction port during the inner ring combustion.

[0071] In an optional embodiment, please refer to Figure 2 andFigure 5 The primary air flow channel 44 is arranged at the secondary air outlet flow channel 22 close to the secondary air inlet flow channel 21.

[0072] It can be understood that the primary air flow channel 44 penetrates through the second chamber 42 and occupies the space of the second chamber 42, which affects the uniformity of the distribution of the secondary air in the second chamber 42 (the secondary air outlet flow channel 22), and further affects the uniformity of the distribution and the flow rate of the secondary air when the secondary air is discharged from the second chamber 42. The primary air flow channel 44 is arranged at the secondary air outlet flow channel 22 close to the secondary air inlet flow channel 21, which can increase the first distance between the outer wall of the primary air flow channel 44 and the flow regulator 50 in the first direction, that is, Figure 5 The greater the first distance L1, the greater the uniformity of the flow rate and the distribution of the secondary air discharged from the flow regulator 50.

[0073] In an optional embodiment, the through hole 51 includes a first through hole and a second through hole, the first through hole corresponds to the position of the primary air flow channel 44, and the aperture of the first through hole is greater than the aperture of the second through hole. The specific aperture and the number of the first through hole and the second through hole can be set according to specific conditions, and the embodiments of the present application are not limited.

[0074] Due to the blockage of the primary air flow channel 44, the gas flow discharged from the first through hole at the position corresponding to the primary air flow channel 44 is smaller than the gas flow discharged from the second through hole, so that setting the aperture of the first through hole to be greater than the aperture of the second through hole can make the gas flow discharged from the first through hole and the second through hole more uniform, improve the uniformity of the secondary air supplement, and further improve the combustion effect.

[0075] Please refer to Figure 5 The primary air (indicated by the hollow arrow in Figure 5 ) and the fuel gas (indicated by the solid arrow in Figure 5 ) enter the outer ring flow channel 31 together and flow to the outer ring combustion chamber 43a, and are burned at the outer fire hole 321 of the outer fire cover 32. The fuel gas (indicated by the solid arrow in Figure 5 ) flows from the inner ring fuel gas flow channel 112 to the inner ring mixing flow channel 111, mixes with the primary air (indicated by the hollow arrow in Figure 5 ), and flows together to the inner fire hole 121 of the inner fire cover 12 for combustion. The secondary air (indicated by the 30-degree arrow in Figure 2 ) flows from the secondary air inlet flow channel 21 to the secondary air outlet flow channel 22, and then flows to the inner fire hole 121 of the inner fire cover 12 and the outer fire hole 321 of the outer fire cover 32 to supplement the combustion of the fuel gas.

[0076] Please refer to Figure 7The stove burner 100 comprises an ejector assembly, and the gas distribution disc 40 is connected to the ejector assembly by sleeving or clamping, etc. The ejector assembly is integrated by the outer ring ejector, the outer ring flow channel 31, the secondary air inlet flow channel 21 and the inner ring gas flow channel 112, which greatly improves the structural compactness of the stove burner 100 and reduces the overall space occupied by the stove burner 100, thereby improving the production efficiency and applicability.

[0077] In an optional embodiment, the inner ring gas structure 10 comprises an air suction assembly (not shown in the figure) at the inlet or middle position of the inner ring flow channel 11.

[0078] In the embodiment, the inner ring gas structure 10 is similar to the outer ring gas structure 30, and the primary air enters the inner ring flow channel 11 and the outer ring flow channel 31 together with the gas at the end or middle position away from the combustion position of the stove burner 100, that is, the air suction assembly for mixing air is arranged at the inlet or middle position of the inner ring flow channel 11 and the outer ring flow channel 31. In this way, the primary air flow channel 44 does not need to be arranged in the first chamber 41 and the second chamber 42, and the secondary air flowing through the secondary chamber is not hindered by the primary air flow channel 44, thereby improving the uniformity of the secondary air discharged from the second chamber 42.

[0079] Figure 8 Fig. 4 shows a structure schematic view of the second chamber 42 of the gas distribution disc 40, wherein the primary air flow channel 44 penetrates the second chamber 42.

[0080] Figure 9 Fig. 5 shows a structure schematic view of the second chamber 42 of the gas distribution disc 40, wherein the primary air flow channel 44 does not penetrate the second chamber 42; it can be understood that the air suction assembly is arranged at the end of the inner ring flow channel 11 away from the combustion position of the inner fire hole 121, and the primary air enters the inner ring flow channel 11 together with the gas.

[0081] In an optional embodiment, please refer to Figure 9 The air in the secondary air inlet flow channel 21 flows in the first direction, that is, the direction of the arrow s1 shown in Fig. 6, and the first direction is the axis direction of the secondary air inlet flow channel 21. Figure 9 The bottom of the second chamber 42 is provided with a wind guide structure 70 which is connected to the secondary air flow channel, and the wind guide structure 70 is configured to form a rotating air flow in the second chamber 42 by the air input by the secondary air flow channel.

[0082] The wind guide structure 70 is one or more air guide ports 71, and the air guide direction of the air guide port 71 forms a first included angle with the horizontal plane, and the air in the secondary air inlet flow channel 21 enters the secondary air outlet flow channel 22 at the first included angle (that is, the first included angle a shown in Fig. 6) under the action of the wind guide structure 70. Figure 9 ​

[0083] In the embodiments of the present application, the air flow entering the secondary air exhaust flow channel can form a spiral air flow under the action of the air guide structure 70, thereby improving the uniformity of the distribution of the air in the secondary air exhaust flow channel, i.e., reducing the concentration of the air flow in a certain direction, and further improving the uniformity of the flow rate and the distribution of the air discharged from the secondary air exhaust flow channel.

[0084] In an optional embodiment, the first included angle (i.e., the included angle between the air flow direction and the direction of the air flow in the secondary air exhaust flow channel) is 40-50 degrees. Figure 3 The first included angle a) shown in FIG. 1 is in the range of 40-50 degrees, and the first included angle in this angle range can ensure the uniformity of the distribution of the air flow. For example, the angle of the first included angle is 42 degrees, 43 degrees, 45 degrees, 47 degrees, etc.

[0085] In an optional embodiment, please refer to FIG. 1. ​ The second chamber 42 is gradually widened along the direction of the air flow. The gradually widened second chamber 42 can reduce the speed of the secondary air flow to the flow regulator 50, thereby reducing the influence of the air flow formed by the secondary air flow on the combustion at the inner fire cap 12 and the outer fire cap 32.

[0086] The embodiments of the present application also include a stove including the stove burner 100 provided by any of the above embodiments. The secondary air flow channel 2a of the stove burner 100 is independent of the inner ring flow channel 11 and has a concentric structure, which not only avoids the interference between the air flows in the two flow channels, but also prevents the negative pressure generated by the secondary air from directly affecting the inner ring combustion, thereby greatly reducing the influence of the secondary air on the combustion effect of the inner ring. In addition, because the secondary air is uniformly supplemented from the periphery of the inner ring combustion, the combustion effect of the stove can be improved.

[0087] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations of the claims. Various modifications and changes can also be made to the above embodiments without departing from the scope of the present disclosure. Similarly, any combination of the technical features of the above embodiments can be made to form additional embodiments of the present application that have not been explicitly described. Therefore, the above embodiments only express several implementations of the present application, and do not limit the protection scope of the patent of the present application.

Claims

1. A cooktop burner, characterized by, The stove burner comprises: a gas distribution disc for distributing gas; an inner ring gas structure comprising an inner ring flow channel for conveying gas and an inner fire cover, the inner ring flow channel being connected to the middle of the gas distribution disc, and the inner fire cover being arranged above the outlet of the inner ring flow channel; an outer ring gas structure comprising an outer ring flow channel for conveying gas and an outer fire cover, the outer ring flow channel being connected to the gas distribution disc, and the outer fire cover being arranged above the outlet of the outer ring flow channel, the outer fire cover being a ring structure, and the inner fire cover being arranged in the middle of the outer fire cover; a secondary air supplement structure comprising a secondary air flow channel, the secondary air flow channel being connected to the gas distribution disc and being distributed on at least two sides of the inner ring flow channel, so that the air output from the outlet of the secondary air flow channel escapes from at least two sides of the inner ring flow channel, and the secondary air flow channel is independent of the inner ring flow channel.

2. Hob burner according to claim 1, characterized in that The inner fire cover is arranged directly above the outlet of the inner ring flow channel, and the secondary air flow channel is arranged around the inner ring flow channel, so that the air output from the secondary air flow channel flows uniformly around the inner fire cover.

3. The cooktop burner of claim 1, wherein The middle of the gas distribution disc is provided with a first chamber for mixing primary air into the inner ring flow channel and a second chamber for uniformly mixing secondary air, and the first chamber is in communication with the inner ring flow channel; The second chamber surrounds the first chamber, the inlet of the second chamber is in communication with the secondary air flow channel, and the outlet of the second chamber is annular and surrounds the outer fire cover.

4. Hob burner according to claim 3, characterized in that The first chamber is provided with a self-suction port for mixing air, or the inlet or middle position of the inner ring flow channel is provided with an air suction assembly for mixing air.

5. The cooktop burner of claim 3, wherein The gas distribution disc or the outer fire cover is provided with a self-suction port for mixing air, or the inlet or middle position of the outer ring flow channel is provided with an air suction assembly for mixing air.

6. The cooktop burner of claim 3, wherein The secondary air supplement structure further comprises a fan, and the fan is arranged at the inlet of the secondary air flow channel, and air flows to the outer fire cover through the secondary air flow channel and the second chamber under the action of the fan.

7. The cooktop burner of claim 3, wherein The stove burner further comprises a flow regulator, and the flow regulator is arranged at the outlet end of the second chamber, and the flow regulator is provided with a plurality of through holes.

8. The cooktop burner of claim 3, wherein The bottom of the second chamber is provided with a wind guide structure that is in abutment with the secondary air flow channel, and the wind guide structure is configured to form a rotating air flow in the second chamber.

9. Hob burner according to claim 8, characterized in that The wind guide structure is one or more air guide ports, and the included angle between the flow direction of the air guide port and the horizontal plane ranges from 40 to 50 degrees.

10. The cooktop burner of claim 3, wherein The second chamber gradually expands in the air outflow direction.

11. The cooktop burner of claim 3, wherein The gas distribution disc is provided with an outer ring groove that surrounds the outside of the second chamber, the end of the outer ring flow channel is connected to the outer ring groove, the outer fire cover is arranged on the gas distribution disc and forms an outer ring combustion chamber with the outer ring groove, and the end of the outer ring flow channel communicates with the outer ring combustion chamber.

12. A hob, characterized in that The stove burner comprises the stove burner according to any one of claims 1 to 11.

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