Combustor and stove

Abstract

The invention discloses a combustor and a stove. The burner includes: a base; the gas distribution disc is arranged on the base; the outer ring fire cover is arranged on the gas distribution disc, an outer ring gas mixing cavity is defined by the outer ring fire cover and the gas distribution disc, outer ring fire holes are formed in the circumferential side face of the outer ring fire cover and communicated with the outer ring gas mixing cavity, and a flow guide space is arranged at the joint of the circumferential side face and the top face of the outer ring fire cover and communicated with the outer ring gas mixing cavity. The flow guide space is configured to guide secondary air above the outer ring fire cover to the circumferential side face of the outer ring fire cover. According to the combustor, the flow guide space is arranged at the joint of the circumferential side face and the top face of the outer ring fire cover, and the flow guide space can guide secondary air above the outer ring fire cover to the circumferential side face of the outer ring fire cover, so that the secondary air can be supplemented to the outer ring fire holes, smoke generated during combustion of the combustor is reduced, and the energy efficiency of the combustor is improved.

Description

Technical Field

[0001] This invention relates to the field of stove technology, and in particular to a burner and stove. Background Technology

[0002] In related technologies, the burner includes an outer ring flame cap, which has outer ring flame holes. The outer ring flame holes have a relatively high density, and the secondary air supply through them is not smooth, which easily leads to high flue gas concentration and low energy efficiency during burner combustion. Summary of the Invention

[0003] The present invention provides a burner and a stove to solve at least one of the above-mentioned technical problems.

[0004] A burner according to an embodiment of the present invention includes:

[0005] Base;

[0006] A gas distribution plate, wherein the gas distribution plate is disposed on the base, and;

[0007] An outer ring flame cap is disposed on the gas distribution plate. The outer ring flame cap and the gas distribution plate form an outer ring mixing chamber. The outer ring flame cap has an outer ring flame hole on its circumferential side, which communicates with the outer ring mixing chamber. A guide space is provided at the connection between the circumferential side and the top surface of the outer ring flame cap. The guide space is configured to guide the secondary air above the outer ring flame cap to the circumferential side of the outer ring flame cap.

[0008] In the aforementioned burner, a flow guiding space is provided at the connection between the circumferential side surface and the top surface of the outer ring burner cap. The flow guiding space can guide the secondary air above the outer ring burner cap to the circumferential side surface of the outer ring burner cap, thereby supplementing the secondary air to the outer ring burner holes, which helps to reduce the flue gas generated during combustion and improve the energy efficiency of the burner.

[0009] In some embodiments, the flow guiding space is a groove located at the junction of the circumferential side surface and the top surface of the outer ring fire cap.

[0010] In some embodiments, the width of the groove gradually increases in the direction away from the bottom of the groove.

[0011] In some embodiments, the groove is inclined relative to the horizontal plane to connect the circumferential side surface and the top surface of the outer ring fire cap.

[0012] In some embodiments, the groove includes a first groove and a second groove. Along the circumferential direction of the burner, a plurality of the first grooves form a first groove group, and a second groove is provided between two adjacent first groove groups. The width of the second groove is greater than the width of the first groove.

[0013] In some embodiments, in the axial direction of the burner, the area of ​​the circumferential side of the outer ring burner cap corresponding to the second groove is a second region, and the remaining area of ​​the circumferential side of the outer ring burner cap is a first region, wherein the flame hole density of the second region is less than that of the first region.

[0014] In some embodiments, a plurality of the outer ring flame holes are arranged in a first flame hole row along the circumferential direction of the burner, and a plurality of the outer ring flame holes are arranged in a second flame hole row along the circumferential direction of the burner. The first flame hole row and the second flame hole row are spaced apart along the axial direction of the burner, and the outer ring flame holes of the first flame hole row and the outer ring flame holes of the second flame hole row are offset in the axial direction of the burner.

[0015] In some embodiments, the first burner hole row is closer to the top of the outer ring burner cap than the second burner hole row, the outer ring burner holes of the first burner hole row are located between two adjacent flow guide spaces in the circumferential direction of the burner, and the outer ring burner holes of the second burner hole row correspond to the flow guide spaces in the axial direction of the burner.

[0016] In some embodiments, the burner includes an annular flame stabilizing groove located on the side of the outer annular flame hole away from the outer annular flame cap, and the flame stabilizing groove communicates with the outer annular mixing chamber.

[0017] One embodiment of the present invention includes a burner according to any of the above embodiments.

[0018] The aforementioned stove has a flow guiding space at the connection between the circumferential side and the top surface of the outer ring burner cap. The flow guiding space can guide the secondary air above the outer ring burner cap to the circumferential side of the outer ring burner cap, thereby supplementing the secondary air to the outer ring burner holes. This helps to reduce the smoke generated during burner combustion and improve the energy efficiency of the burner.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is one of the perspective schematic diagrams of a burner according to an embodiment of the present invention;

[0022] Figure 2 This is one of the exploded view diagrams of the burner according to an embodiment of the present invention;

[0023] Figure 3 This is a second perspective view of the burner according to an embodiment of the present invention;

[0024] Figure 4 This is a second exploded view of the burner according to an embodiment of the present invention;

[0025] Figure 5 This is a side view of the burner according to an embodiment of the present invention;

[0026] Figure 6 This is a cross-sectional schematic diagram of the burner according to an embodiment of the present invention.

[0027] Explanation of key component reference numerals:

[0028] Burner 100, base 12, gas distribution plate 14, outer ring burner cap 16, outer ring mixing chamber 18, outer ring flame hole 20, flow guide space 22, bottom mixing chamber 24, nozzle mounting seat 26, interface 28, outer ring part 30, middle part 32, connecting part 34, first outer ring cavity 36, middle cavity 38, ejector channel 40, inner ring flame hole 42, second outer ring cavity 44, ignition needle 46, thermocouple 48, receiving groove 50, first groove 52, second groove 54, first groove group 56, second area 58, first area 60, first flame hole row 62, second flame hole row 64, flame stabilizing groove 66. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0034] Please refer to Figures 1 to 2 An embodiment of the present invention provides a burner 100 including a base 12, a gas distribution plate 14, and an outer ring burner cap 16. The gas distribution plate 14 is disposed on the base 12. The outer ring burner cap 16 is disposed on the gas distribution plate 14, and the outer ring burner cap 16 and the gas distribution plate 14 form an outer ring mixing chamber 18. The circumferential side of the outer ring burner cap 16 is provided with an outer ring flame hole 20, which communicates with the outer ring mixing chamber 18. A guide space 22 is provided at the connection between the circumferential side and the top surface of the outer ring burner cap 16. The guide space 22 is configured to guide secondary air above the outer ring burner cap 16 to the circumferential side of the outer ring burner cap 16.

[0035] In the aforementioned burner 100, a flow guiding space 22 is provided at the connection between the circumferential side surface and the top surface of the outer ring burner cap 16. The flow guiding space 22 can guide the secondary air above the outer ring burner cap 16 to the circumferential side surface of the outer ring burner cap 16, thereby supplementing the secondary air to the outer ring burner holes 20, which to a certain extent reduces the flue gas generated during combustion of the burner 100 and improves the energy efficiency of the burner 100.

[0036] Specifically, the burner 100 can be applied to cooktops, including but not limited to gas stoves, integrated cooktops, ovens, etc.

[0037] Optionally, in the embodiment shown in the figure, the base 12 can be a bottom cup, and a bottom mixing chamber 24 can be provided inside the base 12. A nozzle mounting seat 26 is provided inside the bottom mixing chamber 24, and the nozzle can be mounted on the nozzle mounting seat 26. An interface 28 is provided on the outer surface of the base 12, which can be connected to a gas delivery pipeline. In other embodiments, the base 12 may include an ejector tube.

[0038] The gas distribution plate 14 is disposed on the base 12, and a primary air intake channel can be formed between the gas distribution plate 14 and the base 12. The burner 100 in this embodiment of the invention can be an upper-intake burner. In an upper-intake burner, the primary air intake channel is located above the cooktop panel, which can provide sufficient primary air supply to the burner 100, reducing the flue gas during combustion and improving the energy efficiency of the burner 100. It is understood that the burner 100 of this invention is not limited to an upper-intake burner.

[0039] Optionally, in Figure 3 In the middle, the air distribution plate 14 includes an outer ring portion 30, a middle portion 32, and a connecting portion 34. The outer ring portion 30 surrounds the middle portion 32, and the connecting portion 34 connects the outer ring portion 30 and the middle portion 32. Please refer to... Figure 4 and Figure 6 The outer ring portion 30 is provided with a first outer ring cavity 36, and the middle portion 32 is provided with a middle cavity 38. An ejector channel 40 is provided at the bottom of the middle cavity 38. Optionally, the ejector channel 40 and the nozzle mounting seat 26 are correspondingly arranged in the axial direction of the burner 100. The axial direction of the burner 100 can be the up-down direction shown in the figure. Optionally, the middle portion 32 is provided with an inner ring flame hole 42, which communicates with the middle cavity 38.

[0040] The connecting part 34 is provided with a connecting channel, which connects the first outer ring cavity 36 and the intermediate cavity 38.

[0041] An outer ring burner cap 16 is disposed on the air distribution plate 14. The outer ring burner cap 16 has a second outer ring cavity 44. The first outer ring cavity 36 and the second outer ring cavity 44 together constitute the outer ring mixing chamber 18. Optionally, in other embodiments, the outer ring burner cap 16 may not have a second outer ring cavity 44. The outer ring burner cap 16 directly covers the air distribution plate 14, closing the top opening of the first outer ring cavity 36 to form the outer ring mixing chamber 18.

[0042] The outer ring burner cap 16 has outer ring flame holes 20 on its circumferential side. The outer ring flame holes 20 communicate with the outer ring mixing chamber 18. The burner 100 also includes an ignition needle 46 and a thermocouple 48, which are connected to the base 12. Optionally, in Figure 3 In the middle, the thermocouple 48 is set near the circumferential side of the outer ring flame cap 16 and corresponds to the outer ring flame hole 20.

[0043] Optionally, the burner 100 includes a receiving groove 50 located on the circumferential side of the gas distribution plate 14 and the outer ring burner cap 16, with the top of the ignition needle 46 located inside the receiving groove 50, and the receiving groove 50 can communicate with the outer ring mixing chamber 18.

[0044] When the burner 100 is operating, the combustion gas is injected from the nozzle into the bottom mixing chamber 24, creating a negative pressure within the bottom mixing chamber 24. This negative pressure draws in primary air through the primary air intake channel into the bottom mixing chamber 24, where it mixes with the combustion gas to form a gas mixture. This mixture then enters the intermediate chamber 38 through the ejector channel 40. A portion of the mixture is ejected through the inner ring flame hole 42, where it burns to form an inner ring flame. The other portion of the mixture enters the outer ring mixing chamber 18 through the connecting channel and is ejected through the outer ring flame hole 20, where it is ignited by the ignition needle 46, where it burns to form an outer ring flame.

[0045] A flow guiding space 22 is provided at the connection between the circumferential side surface and the top surface of the outer ring burner cap 16. The flow guiding space 22 is configured to guide the secondary air above the outer ring burner cap 16 to the circumferential side surface of the outer ring burner cap 16. When the outer ring burner holes 20 consume the air on the circumferential side surface of the outer ring burner cap 16 during combustion, the flow guiding space 22 can guide the secondary air above the outer ring burner cap 16 to the circumferential side surface of the outer ring burner cap 16, timely replenishing the secondary air for the combustion of the outer ring burner, thereby making the combustion of the outer ring burner more complete, increasing the combustion rate of the mixed gas, reducing or even eliminating yellow flame, reducing the flue gas generated during combustion of the burner 100, and improving the energy efficiency of the burner 100, while also reducing costs and increasing efficiency. The burner 100 has low flue gas concentration and high energy efficiency during combustion, which can meet relevant requirements.

[0046] Optionally, the burner 100 in this embodiment of the invention can be a two-ring burner or a three-ring burner; the invention does not specifically limit this. In the embodiment shown in the figure, the burner 100 is a three-ring burner. The outer ring burner cap 16 has a middle ring burner hole on the side near the middle portion 32, and the middle ring burner hole communicates with the outer ring mixing chamber 18.

[0047] In some embodiments, the flow guiding space 22 is a groove provided at the connection between the circumferential side surface and the top surface of the outer ring flame cap 16.

[0048] Therefore, the secondary air above the outer ring flame cap 16 can be guided to the circumferential side of the outer ring flame cap 16 through the groove.

[0049] Specifically, compared to through holes, grooves are easier to process and have higher processing efficiency because they have an opening on one side. Moreover, when forging the outer ring flame cap 16, the outer ring flame cap 16 is easier to detach from the tool.

[0050] Alternatively, in other embodiments, the flow guiding space 22 can also be formed in the form of through holes.

[0051] In some implementations, the width of the groove gradually increases in the direction away from the bottom of the groove.

[0052] This makes it easier to separate the outer ring burner cap 16 from the tool, improving the manufacturing efficiency of the burner 100.

[0053] Specifically, the outer ring burner cap 16 can be manufactured by forging with a tool when creating the groove. Since the width of the groove gradually increases along the direction away from the bottom of the groove, the tool can be more easily separated from the outer ring burner cap 16 after the groove is formed by forging, thus improving the manufacturing efficiency of the burner 100.

[0054] The present invention does not specifically limit the width of the groove; the width of the groove can be determined according to actual needs.

[0055] In some embodiments, the groove is inclined relative to the horizontal plane to connect the circumferential side surface and the top surface of the outer ring fire cover 16.

[0056] This can accelerate the flow of secondary air.

[0057] Specifically, since the groove is inclined relative to the horizontal plane, connecting the circumferential side surface and the top surface of the outer ring flame cap 16, the secondary air above the outer ring flame cap 16 can be guided along the inclined groove to the circumferential side surface of the outer ring flame cap 16. When the secondary air flows in the inclined groove, the flow path is short and the flow resistance is less, so it can flow from the top surface of the outer ring flame cap 16 to the circumferential side surface of the outer ring flame cap 16 more quickly, thereby increasing the flow speed of the secondary air.

[0058] Optionally, in the embodiment shown in the figure, the bottom of the groove is a plane, which can further reduce airflow resistance. The present invention does not specifically limit the bottom width of the groove. Optionally, in one example, the width W of the bottom of the groove is ≥ 2 mm.

[0059] The present invention does not specify the angle of inclination of the groove, and the specific inclination angle can be determined according to actual needs.

[0060] In some embodiments, the groove includes a first groove 52 and a second groove 54. Along the circumferential direction P of the burner 100, a plurality of first grooves 52 constitute a first groove group 56. A second groove 54 is provided between two adjacent first groove groups 56. The width W2 of the second groove 54 is greater than the width W1 of the first groove 52.

[0061] Therefore, the design of the outer ring burner cap 16 can be adapted to the pot support, further improving the energy efficiency of the burner 100.

[0062] Specifically, when the burner 100 is applied to a cooktop, the cooktop includes a pot support that can be placed on a panel and is positioned around the burner 100. The pot support has multiple support arms that are spaced apart along the circumferential direction P of the burner 100. The support arms are used to support the pot, so that the pot is stably positioned above the burner 100.

[0063] Due to the obstruction of the support arm, the flame generated by the burner 100 during operation cannot directly heat the part of the cookware that contacts the support arm. Therefore, the circumferential side of the outer ring burner cap 16 corresponding to the area of ​​the support arm typically has few or no outer ring flame holes 20. The width W2 of the second groove 54 is relatively large, which can cover part or all of the circumferential side of the outer ring burner cap 16 corresponding to the support arm. This allows the second groove 54 to also guide secondary air near the support arm to the circumferential side of the outer ring burner cap 16, thereby increasing the amount of secondary air supplied to the outer ring flame holes 20 near the support arm to a certain extent, and further improving the energy efficiency of the burner 100.

[0064] The second groove 54 can be set one by one corresponding to the support arm. Figure 2 In the burner 100, there are four first groove groups 56. Along the circumferential direction P of the burner 100, a second groove 54 is provided between two adjacent first groove groups 56, for a total of four second grooves 54, corresponding to the pot support with four support arms. The number of first grooves 52 in each first groove group 56 can be the same or different.

[0065] Optionally, the width W2 of the second groove 54 is greater than the width of the support arm.

[0066] In some embodiments, in the axial direction of the burner 100, the area of ​​the circumferential side of the outer ring burner cap 16 corresponding to the second groove 54 is designated as the second region 58, and the remaining area of ​​the circumferential side of the outer ring burner cap 16 is designated as the first region 60. The flame hole density of the second region 58 is less than that of the first region 60.

[0067] This can further improve the energy efficiency of burner 100.

[0068] Specifically, when the burner 100 is applied to a cooktop, the cooktop includes a pot support that can be placed on a panel and surrounds the burner 100. The pot support has multiple support arms that are spaced apart along the circumferential direction P of the burner 100. The support arms are used to support the pot, so that the pot is stably positioned above the burner 100.

[0069] Because of the obstruction of the support arm, the flame generated by the burner 100 during operation cannot directly heat the part of the pot that contacts the support arm. Therefore, in the axial direction of the burner 100, the circumferential side of the outer ring burner cap 16 corresponding to the area of ​​the support arm is usually provided with fewer or no outer ring burner holes 20, thereby making the burner hole density of the second region 58 less than that of the first region 60.

[0070] In the second region 58, due to the lower density of the burner holes, more of the mixed gas in the outer ring mixing chamber 18 can be ejected from the outer ring burner holes 20 of the first region 60, resulting in higher combustion power of the outer ring burner holes 20 of the first region 60 and further improving the energy efficiency of the burner 100.

[0071] In some embodiments, a plurality of outer ring flame holes 20 are arranged in a first flame hole row 62 along the circumferential direction P of the burner 100, and a plurality of outer ring flame holes 20 are arranged in a second flame hole row 64 along the circumferential direction P of the burner 100. The first flame hole row 62 and the second flame hole row 64 are arranged at intervals along the axial direction of the burner 100, and the outer ring flame holes 20 of the first flame hole row 62 and the outer ring flame holes 20 of the second flame hole row 64 are offset in the axial direction of the burner 100.

[0072] Therefore, the energy efficiency of burner 100 can be guaranteed to a certain extent.

[0073] Specifically, in Figure 5 In the burner 100, the first burner hole row 62 is the upper burner hole row, and the second burner hole row 64 is the lower burner hole row. The outer ring burner holes 20 of the lower burner hole row are offset from those of the upper burner hole row in the axial direction (e.g., vertical direction) of the burner 100. In the circumferential direction P of the burner 100, if the distance between two adjacent outer ring burner holes 20 is set too small, the portion of the burner 100 between the two adjacent outer ring burner holes 20 will be thinner. During combustion, this portion is prone to deformation, compressing the outer ring burner holes 20 and reducing their size, thus lowering the energy efficiency of the burner 100. If the distance between two adjacent outer ring burner holes 20 is set too large, the number of outer ring burner holes 20 will be significantly limited, affecting the energy efficiency of the burner 100.

[0074] In this embodiment, the outer ring flame holes 20 of the upper flame hole row and the outer ring flame holes 20 of the lower flame hole row are offset in the axial direction of the burner 100, so that the distance between the outer ring flame holes 20 of the upper flame hole row and the outer ring flame holes 20 of the lower flame hole row is greater, and the distance between two adjacent outer ring flame holes 20 in the same flame hole row is also greater. Thus, even when the burner 100 portion between two adjacent outer ring flame holes 20 is thicker, more outer ring flame holes 20 can be provided, which to a certain extent ensures the energy efficiency of the burner 100.

[0075] In some embodiments, the first burner row 62 is closer to the top of the outer ring burner cap 16 than the second burner row 64. The outer ring burner holes 20 of the first burner row 62 are located between two adjacent flow guide spaces 22 in the circumferential direction P of the burner 100. The outer ring burner holes 20 of the second burner row 64 correspond to the flow guide spaces 22 in the axial direction of the burner 100.

[0076] This ensures that each outer ring fire hole 20 receives sufficient secondary air replenishment to a certain extent.

[0077] Specifically, in Figure 5 In the burner 100, the first burner hole row 62 is the upper burner hole row, and the second burner hole row 64 is the lower burner hole row. The flow guide space 22 is located at the connection between the circumferential side surface and the top surface of the outer ring burner cap 16. The outer ring burner holes 20 of the upper burner hole row and the outer ring burner holes 20 of the lower burner hole row are staggered in the axial direction (vertical direction) of the burner 100. The outer ring burner holes 20 of the upper burner hole row are located between two adjacent flow guide spaces 22 in the circumferential direction P of the burner 100, while the outer ring burner holes 20 of the lower burner hole row correspond to the flow guide spaces 22 in the axial direction of the burner 100. This ensures that the distance between the outer ring burner holes 20 of the upper burner hole row and the flow guide space 22 is approximately the same as the distance between the outer ring burner holes 20 of the lower burner hole row and the flow guide space 22, thus guaranteeing that each outer ring burner hole 20 receives sufficient secondary air replenishment to a certain extent.

[0078] It is understood that in other embodiments, the first flame hole row 62 is not limited to the upper flame hole row, and the second flame hole row 64 is not limited to the lower flame hole row.

[0079] In some embodiments, the burner 100 includes an annular flame stabilizing groove 66, which is located on the side of the outer annular flame hole 20 away from the outer annular flame cap 16, and the flame stabilizing groove 66 communicates with the outer annular mixing chamber 18.

[0080] This allows for more stable combustion in the outer ring flame hole 20.

[0081] Specifically, the flame stabilizing groove 66 extends through the circumferential side of the outer ring burner cap 16 along the circumferential direction P of the burner 100, and the flame stabilizing groove 66 is located below the outer ring burner hole 20. Optionally, the flame stabilizing groove 66 is arranged in a basically horizontal direction.

[0082] When the burner 100 is working, the mixed gas in the outer ring mixing chamber 18 can flow into the flame stabilizing groove 66. The flame formed by the combustion of the mixed gas in the flame stabilizing groove 66 can stabilize the root of the flame formed by the combustion of the outer ring flame hole 20, and to a certain extent avoid the phenomenon of flame lift-off and extinguishing when the outer ring flame hole 20 is burning, thereby making the combustion of the outer ring flame hole 20 more stable.

[0083] One embodiment of the present invention includes a burner 100 according to any of the above embodiments.

[0084] In the aforementioned stove, a guide space 22 is provided at the connection between the circumferential side surface and the top surface of the outer ring burner cap 16. The guide space 22 can guide the secondary air above the outer ring burner cap 16 to the circumferential side surface of the outer ring burner cap 16, thereby supplementing the secondary air to the outer ring burner holes 20, which to a certain extent reduces the smoke generated during combustion of the burner 100 and improves the energy efficiency of the burner 100.

[0085] Specifically, the burner 100 can be applied to cooktops, including but not limited to gas stoves, integrated cooktops, ovens, etc.

[0086] The cooktop includes a panel with openings, through which a burner 100 extends above the panel. The panel also has a pot support, which is arranged around the burner 100 and is used to stably place the pot above the burner 100.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0088] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A burner, characterized in that, include: Base; A gas distribution plate, wherein the gas distribution plate is disposed on the base, and; An outer ring flame cap is disposed on the gas distribution plate. The outer ring flame cap and the gas distribution plate form an outer ring mixing chamber. The outer ring flame cap has an outer ring flame hole on its circumferential side, which communicates with the outer ring mixing chamber. A guide space is provided at the connection between the circumferential side and the top surface of the outer ring flame cap. The guide space is configured to guide the secondary air above the outer ring flame cap to the circumferential side of the outer ring flame cap.

2. The burner according to claim 1, characterized in that, The flow guiding space is a groove located at the connection between the circumferential side surface and the top surface of the outer ring fire cover.

3. The burner according to claim 2, characterized in that, The width of the groove gradually increases in the direction away from the bottom of the groove.

4. The burner according to claim 2, characterized in that, The groove is inclined relative to the horizontal plane, connecting the circumferential side surface and the top surface of the outer ring fire cover.

5. The burner according to claim 2, characterized in that, The groove includes a first groove and a second groove. Along the circumferential direction of the burner, a number of the first grooves form a first groove group, and a second groove is provided between two adjacent first groove groups. The width of the second groove is greater than the width of the first groove.

6. The burner according to claim 5, characterized in that, In the axial direction of the burner, the area on the circumferential side of the outer ring burner cap corresponding to the second groove is the second region, and the remaining area on the circumferential side of the outer ring burner cap is the first region. The flame hole density in the second region is less than that in the first region.

7. The burner according to claim 1, characterized in that, A plurality of the outer ring flame holes are arranged in a first flame hole row along the circumferential direction of the burner, and a plurality of the outer ring flame holes are arranged in a second flame hole row along the circumferential direction of the burner. The first flame hole row and the second flame hole row are arranged at intervals along the axial direction of the burner, and the outer ring flame holes of the first flame hole row and the outer ring flame holes of the second flame hole row are offset in the axial direction of the burner.

8. The burner according to claim 7, characterized in that, The first burner row is closer to the top of the outer ring burner cap than the second burner row. The outer ring burner holes of the first burner row are located between two adjacent flow guide spaces in the circumferential direction of the burner. The outer ring burner holes of the second burner row correspond to the flow guide spaces in the axial direction of the burner.

9. The burner according to claim 1, characterized in that, The burner includes an annular flame stabilizing groove located on the side of the outer annular flame hole away from the outer annular flame cap, and the flame stabilizing groove is connected to the outer annular mixing chamber.

10. A stove, characterized in that, Includes the burner according to any one of claims 1-9.

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