Combustor and gas stove

Abstract

The utility model provides a combustor and a gas stove, and relates to the technical field of kitchen appliances, and the combustor comprises a gas distribution disc and a flow guide piece; the gas distribution disc comprises a peripheral cavity, and the peripheral cavity is provided with a gas inlet channel; the flow guide part is arranged in the peripheral cavity, the flow guide part is provided with a plurality of air outlet structures, the multiple air outlet structures are arranged at intervals in the circumferential direction of the flow guide part, and the areas of the multiple air outlet structures are different; the multiple air outlet structures can communicate with the top end openings of the air inlet channels correspondingly. When the gas outlet structure with the medium area is communicated with the opening in the top end of the gas inlet channel, the normal combustion work of the gas stove can be met; when yellow flame or incomplete combustion occurs in combustion of the combustor, the gas outlet structure with the large area is communicated with the opening in the top end of the gas inlet channel. When big fire of the combustor is converted into small fire or flameout noise is large when the combustor is closed, the gas outlet structure with the small area is communicated with the opening in the top end of the gas inlet channel. And the problems of incomplete combustion and high flameout noise can be solved according to different use conditions of the combustor.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a burner and a gas stove. Background Art

[0002] The burner is one of the important components of a gas stove. The burner head cavity structure and the copper cover fire hole aperture design are closely related to the burner performance.

[0003] When the burner's burner cavity structure and the copper cover fire hole aperture are designed to be larger, the burner's combustion is more complete, but the flameout noise is larger; when the burner's burner cavity structure and the copper cover fire hole aperture are designed to be smaller, the burner's flameout noise is smaller, but the combustion is incomplete.

[0004] The sizes of the burner, the burner cavity structure and the copper cover fire hole aperture in the prior art are fixed and cannot be adjusted according to usage conditions during actual use. Utility Model Content

[0005] The purpose of the utility model is to provide a burner to solve the technical problem in the prior art that the sizes of the burner cavity structure and the diameters of the copper cover fire holes cannot be adjusted according to usage conditions.

[0006] The burner provided by the utility model includes an air distribution plate and a flow guide;

[0007] The gas distribution plate includes a peripheral cavity, and the peripheral cavity is provided with an air inlet channel;

[0008] The guide member is disposed in the peripheral cavity, and the guide member is provided with a plurality of air outlet structures, the plurality of air outlet structures are spaced apart along the circumference of the guide member, and the areas of the plurality of air outlet structures are different;

[0009] The plurality of air outlet structures can be respectively communicated with the top opening of the air inlet channel.

[0010] Furthermore, the plurality of air outlet structures include a first air outlet structure, a second air outlet structure and a third air outlet structure;

[0011] The first air outlet structure, the second air outlet structure and the third air outlet structure are arranged at intervals along the circumference of the guide member, the area of the first air outlet structure is larger than that of the second air outlet structure, and the area of the second air outlet structure is larger than that of the third air outlet structure.

[0012] Furthermore, the first air outlet structure includes a first air outlet hole, and the outer contour of the first air outlet hole is the same as the outer contour of the top opening of the air inlet channel;

[0013] The second air outlet structure includes a plurality of second air outlet holes, and the plurality of second air outlet holes are distributed in a matrix shape; the third air outlet structure includes a plurality of third air outlet holes, and the plurality of third air outlet holes are distributed in a matrix shape;

[0014] The radius of the second air outlet is greater than the radius of the third air outlet.

[0015] Furthermore, the peripheral cavity is provided with a first positioning structure;

[0016] The guide member is provided with a second positioning structure, and the first positioning structure is connected to the second positioning structure so that the guide member is positioned at a position where the plurality of air outlet structures are respectively connected to the top end openings of the air inlet channel.

[0017] Furthermore, the first positioning structure is a protrusion;

[0018] The second positioning structure includes a plurality of first notches, which are respectively arranged at the outer edge of the guide member and are spaced apart along the circumference of the guide member; the protrusion can extend into the first notches.

[0019] Furthermore, the burner further includes a diverter plate;

[0020] The diverter plate is annular and fixed below the gas distribution plate. A second notch is provided on the outer edge of the diverter plate, and the air inlet channel extends into the second notch.

[0021] Furthermore, the outer edge of the diverter plate is provided with a flange structure extending downward.

[0022] Furthermore, the burner further comprises a burner head;

[0023] An air outlet channel is provided on the top surface of the burner head, and the top surface of the air outlet channel abuts against the bottom surface of the air inlet channel.

[0024] Furthermore, a third positioning structure is provided on the top surface of the burner head, and a fourth positioning structure is provided on the bottom surface of the gas distribution plate. The third positioning structure is cooperatively connected with the fourth positioning structure to position the gas distribution plate along the circumference of the gas distribution plate.

[0025] The purpose of the present invention is also to provide a gas stove, including the burner provided by the present invention.

[0026] The burner provided by the utility model includes an air distribution plate and a guide member; the air distribution plate includes an outer cavity, and the outer cavity is provided with an air inlet channel; the guide member is arranged in the outer cavity, and the guide member is provided with multiple air outlet structures, and the multiple air outlet structures are arranged at intervals along the circumference of the guide member, and the areas of the multiple air outlet structures are different; the multiple air outlet structures can be respectively connected to the top end opening of the air inlet channel. When the medium-sized air outlet structure is connected to the top opening of the air inlet channel, the gas stove can operate normally. When the burner burns with yellow flames or incomplete combustion, the installation position of the guide member is adjusted so that the larger air outlet structure is connected to the top opening of the air inlet channel. The area of the air outlet structure is relatively increased, the air entrainment capacity is enhanced, and the combustion is more complete, solving the problems of yellow flames and incomplete combustion. When the burner is turned off or the flameout noise is loud when the burner is turned off, the installation position of the guide member is adjusted so that the smaller air outlet structure is connected to the top opening of the air inlet channel. The area of the air outlet structure is relatively reduced, which can prevent the flame from being transferred to the burner cavity when the burner is turned off, reducing the flameout noise. The position of the guide member can be adjusted according to the different usage of the burner to solve the problems of incomplete combustion and loud flameout noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic structural diagram of a burner provided by an embodiment of the present utility model;

[0029] Figure 2 This is a structural diagram of a burner head in a burner provided by an embodiment of the present utility model;

[0030] Figure 3 This is a schematic structural diagram of the gas distribution plate and flow guide member in the burner provided by an embodiment of the utility model;

[0031] Figure 4 This is a schematic structural diagram of the middle flow guide provided by an embodiment of the present utility model;

[0032] Figure 5 This is a structural diagram of the central gas distribution plate provided by an embodiment of the present utility model;

[0033] Figure 6 This is a bottom view of the gas distribution plate in the burner provided by an embodiment of the utility model;

[0034] Figure 7 It is a structural schematic diagram of a diverter plate in a burner provided by an embodiment of the utility model.

[0035] Icons: 1-copper core; 2-copper cover; 3-gas distribution plate; 31-protrusion; 32-fourth positioning structure; 33-air inlet channel; 34-bottom wall of the peripheral cavity; 35-side wall of the peripheral cavity; 4-diverter plate; 41-flanged structure; 42-second notch; 43-center hole; 44-mounting hole; 5-furnace head; 51-gas outlet channel; 6-thermocouple; 7-electrode needle; 8-flow guide; 81-first air outlet; 82-second air outlet; 83-third air outlet; 84-first notch a; 85-first notch b; 86-first notch c. DETAILED DESCRIPTION

[0036] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0037] The utility model provides a burner and a gas stove. A plurality of embodiments are given below to describe the burner and the gas stove provided by the utility model in detail.

[0038] Example 1

[0039] The burner provided in this embodiment is as follows: Figures 1 to 7 As shown, it includes an air distribution plate 3 and a guide member 8; the air distribution plate 3 includes an outer cavity, and the outer cavity is provided with an air inlet channel 33; the guide member 8 is arranged in the outer cavity, and the guide member 8 is provided with multiple air outlet structures, and the multiple air outlet structures are arranged at intervals along the circumference of the guide member 8, and the areas of the multiple air outlet structures are different; the multiple air outlet structures can be connected to the top opening of the air inlet channel 33 respectively.

[0040] The guide member 8 is placed in the outer cavity and above the air inlet channel 33. When any outlet structure is connected to the top of the air inlet channel 33, the gas in the air inlet channel 33 can flow out through the corresponding outlet structure.

[0041] For example, the number of the air outlet structures is three, including an air outlet structure with a medium area, an air outlet structure with a large area, and an air outlet structure with a small area.

[0042] When the air outlet structure with a medium area is connected to the top opening of the air inlet channel 33, the air outlet structure with a larger area and the air outlet structure with a smaller area are not connected to the top opening of the air inlet channel 33; when the air outlet structure with a larger area is connected to the top opening of the air inlet channel 33, the air outlet structure with a medium area and the air outlet structure with a smaller area are not connected to the top opening of the air inlet channel 33; when the air outlet structure with a smaller area is connected to the top opening of the air inlet channel 33, the air outlet structure with a medium area and the air outlet structure with a larger area are not connected to the top opening of the air inlet channel 33.

[0043] The guide member 8 is annular and can rotate relative to the peripheral cavity around the axis of the peripheral cavity (it can rotate within the peripheral cavity; or the guide member 8 can be taken out of the peripheral cavity, rotated to a suitable position above the peripheral cavity, and then placed into the peripheral cavity), thereby adjusting the installation position of the guide member 8 so that different air outlet structures are connected to the top opening of the air inlet channel 33.

[0044] When the medium-sized air outlet structure is connected to the top opening of the air inlet channel 33, the gas stove can meet normal combustion requirements. When the burner burns and yellow flames or incomplete combustion occurs, the installation position of the guide member 8 is adjusted so that the larger air outlet structure is connected to the top opening of the air inlet channel 33. The area of the air outlet structure is relatively increased, the air entrainment capacity is enhanced, and combustion is more complete, solving the problems of yellow flames and incomplete combustion. When the burner switches from high to low or turns off, and the flameout noise is loud, the installation position of the guide member 8 is adjusted so that the smaller air outlet structure is connected to the top opening of the air inlet channel 33. The area of the air outlet structure is relatively reduced, which can prevent the flame from being transmitted to the burner head 5 cavity when the burner is turned off, reducing the flameout noise. The position of the guide member 8 can be adjusted according to the different usage of the burner to address the problems of incomplete combustion and loud flameout noise.

[0045] Among them, there are multiple air inlet channels 33, and the multiple air inlet channels 33 are arranged at intervals along the circumference of the outer cavity. Multiple air outlet structures with different areas form an air outlet component. The guide member 8 is provided with multiple air outlet components, and the multiple air outlet components are arranged one-to-one correspondingly to the multiple air inlet channels 33.

[0046] Specifically, each air inlet channel 33 is provided with the same number of air outlet structures. For example, if there are four air inlet channels 33, each air inlet channel 33 is provided with a corresponding air outlet structure of medium area, an air outlet structure of large area, and an air outlet structure of small area. When the air guide 8 is in the first installation position, the top opening of each air inlet channel 33 is connected to the air outlet structure of medium area. When the air guide 8 is in the second installation position, the top opening of each air inlet channel 33 is connected to the air outlet structure of large area. When the air guide 8 is in the third installation position, the top opening of each air inlet channel 33 is connected to the air outlet structure of small area.

[0047] The number of the air outlet structures may be any suitable number such as 2, 3, 4 or 5.

[0048] Furthermore, the multiple air outlet structures include a first air outlet structure, a second air outlet structure and a third air outlet structure; the first air outlet structure, the second air outlet structure and the third air outlet structure are arranged at intervals along the circumference of the guide member 8, the area of the first air outlet structure is larger than the area of the second air outlet structure, and the area of the second air outlet structure is larger than the area of the third air outlet structure.

[0049] When the second air outlet structure is connected to the top opening of the air inlet channel 33, the normal combustion of the gas stove can be satisfied; when the burner burns and yellow flames or incomplete combustion occurs, the installation position of the guide member 8 is adjusted to connect the first air outlet structure with the top opening of the air inlet channel 33, the area of the air outlet structure is relatively increased, the air entrainment ability is enhanced, the combustion is more complete, and the problems of yellow flames and incomplete combustion are solved; when the burner switches from high fire to low fire or is turned off and the flameout noise is large, the installation position of the guide member 8 is adjusted to connect the third air outlet structure with the top opening of the air inlet channel 33, the area of the air outlet structure is relatively reduced, which can prevent the flame from being transferred to the burner head 5 cavity when the flame is turned off, thereby reducing the flameout noise.

[0050] The first air outlet structure may include a first air outlet hole 81 or multiple first air outlet holes 81, the second air outlet structure may include a second air outlet hole 82 or multiple second air outlet holes 82, and the third air outlet structure may include a third air outlet hole 83 or multiple third air outlet holes 83.

[0051] Preferably, the first air outlet structure includes a first air outlet hole 81, and the outer contour of the first air outlet hole 81 is the same as the outer contour of the top opening of the air inlet channel 33; the second air outlet structure includes a plurality of second air outlet holes 82, and the plurality of second air outlet holes 82 are distributed in a matrix shape; the third air outlet structure includes a plurality of third air outlet holes 83, and the plurality of third air outlet holes 83 are distributed in a matrix shape; the radius of the second air outlet hole 82 is greater than the radius of the third air outlet hole 83.

[0052] The outer contour of the first air outlet 81 is the same as the outer contour of the top opening of the air inlet channel 33. The first air outlet 81 is the same size as the top opening of the air inlet channel 33. When the first air outlet structure is connected to the top opening of the air inlet channel 33, the top opening of the air inlet channel 33 is opened to the maximum extent.

[0053] The sum of the areas of the second air outlet holes 82 is smaller than the area of the first air outlet hole 81 . When the second air outlet holes 82 are all connected to the top opening of the air inlet channel 33 , the top opening of the air inlet channel 33 is moderately open.

[0054] The sum of the areas of the multiple third air outlet holes 83 is smaller than the sum of the areas of the multiple second air outlet holes 82. When the multiple third air outlet holes 83 are connected to the top opening of the air inlet channel 33, the opening degree of the top opening of the air inlet channel 33 is the smallest, and the radius of the third air outlet holes 83 is smaller, which can better prevent the flame from being transferred to the burner head 5 cavity when the flame is turned off, and better reduce the flameout noise.

[0055] Furthermore, the peripheral cavity is provided with a first positioning structure; the guide member 8 is provided with a second positioning structure, and the first positioning structure is connected to the second positioning structure so that the guide member 8 is positioned at a position where multiple air outlet structures are respectively connected to the top openings of the air inlet channel 33.

[0056] When the guide member 8 is installed at any position where the air outlet structure is connected to the top opening of the air inlet channel 33, it can be connected through the first positioning structure and the second positioning structure to position the guide member 8 at the installation position to prevent the air outlet structure and the top opening of the air inlet channel 33 from being misaligned and moved.

[0057] The guide member 8 is installed at each position where the air outlet structure communicates with the top opening of the air inlet channel 33, and can be positioned using the first positioning structure and the second positioning structure. For example, the air outlet structure includes a first air outlet structure, a second air outlet structure, and a third air outlet structure. When the guide member 8 is installed at a position where the first air outlet structure communicates with the top opening of the air inlet channel 33, the first positioning structure and the second positioning structure are connected to position the guide member 8 at that position; when the guide member 8 is installed at a position where the second air outlet structure communicates with the top opening of the air inlet channel 33, the first positioning structure and the second positioning structure are connected to position the guide member 8 at that position; when the guide member 8 is installed at a position where the third air outlet structure communicates with the top opening of the air inlet channel 33, the first positioning structure and the second positioning structure are connected to position the guide member 8 at that position.

[0058] When the installation position of the guide member 8 needs to be changed, the connection between the first positioning structure and the second positioning structure is released, the guide member 8 is taken out to the top of the peripheral cavity, the guide member 8 is rotated to the new installation position, and the guide member 8 is placed into the peripheral cavity again.

[0059] In an optional embodiment, the first positioning structure is a groove, and the second positioning structure is a plurality of protrusions, the groove is arranged on the bottom wall 34 of the peripheral cavity, and the plurality of protrusions are arranged on the bottom surface of the guide member 8 at circumferential intervals along the guide member 8, and each protrusion can be plugged into the groove; the air outlet structure includes a first air outlet structure, a second air outlet structure and a third air outlet structure, and there are three protrusions; when the guide member 8 is installed in the position where the first air outlet structure is connected to the top opening of the air inlet channel 33, the first protrusion is plugged into the groove to position the guide member 8 at the installation position; when the guide member 8 is installed in the position where the second air outlet structure is connected to the top opening of the air inlet channel 33, the second protrusion is plugged into the groove to position the guide member 8 at the installation position; when the guide member 8 is installed in the position where the third air outlet structure is connected to the top opening of the air inlet channel 33, the third protrusion is plugged into the groove to position the guide member 8 at the installation position.

[0060] Preferably, the first positioning structure is a protrusion 31; the second positioning structure includes a plurality of first notches, which are respectively arranged at the outer edge of the guide member 8, and the plurality of first notches are arranged at intervals along the circumference of the guide member 8; the protrusion 31 can extend into the first notch.

[0061] The protrusion 31 is arranged on the side wall 35 of the peripheral cavity, and the protrusion 31 can be respectively extended into multiple first notches. After the protrusion 31 is extended into the first notch, the guide member 8 cannot rotate around the axis of the peripheral cavity in the peripheral cavity, thereby positioning the guide member 8 at different installation positions.

[0062] For example, the air outlet structure includes a first air outlet structure, a second air outlet structure and a third air outlet structure. There are three first notches, which are respectively a first notch a84, a first notch b85 and a first notch c86; when the protrusion 31 extends into the first notch a84, the first air outlet structure is connected to the top opening of the air inlet channel 33; when the protrusion 31 extends into the first notch b85, the second air outlet structure is connected to the top opening of the air inlet channel 33; when the protrusion 31 extends into the first notch c86, the third air outlet structure is connected to the top opening of the air inlet channel 33.

[0063] Furthermore, the burner also includes a diverter plate 4 ; the diverter plate 4 is annular and fixed below the gas distribution plate 3 . A second notch 42 is provided on the outer edge of the diverter plate 4 , and the air inlet channel 33 extends into the second notch 42 .

[0064] The gas distribution plate 3 is provided with an outer cavity and an inner ring cavity. The outer cavity is arranged outside the inner ring cavity. The outer cavity is installed with a copper cover 2 to realize the outer ring main fire combustion. The inner ring cavity is installed with a copper core 1 to realize the center fire combustion.

[0065] The diverter plate 4 is arranged below the gas distribution plate 3. The diverter plate 4 is located between the outer cavity and the inner ring cavity. A mounting hole 44 is provided on the diverter plate 4. After the screw passes through the mounting hole 44, the screw is locked with the gas distribution plate 3, thereby fixing the diverter plate 4 below the gas distribution plate 3.

[0066] The diverter plate 4 is annular, and the central hole 43 inside the diverter plate 4 can avoid the electrode needle 7, the thermocouple 6, the center fire gas channel installation and the center fire secondary air supply.

[0067] A second notch 42 is provided on the outer edge of the manifold 4 , and the air inlet passage 33 extends into the second notch 42 , so that the manifold 4 can avoid the air inlet passage 33 , facilitating the installation of the manifold 4 and the gas distribution plate 3 .

[0068] Furthermore, the outer edge of the diverter plate 4 is provided with a flange structure 41 extending downward.

[0069] The flange structure 41 can control the size of the center fire secondary air supply inlet and enhance the strength of the diverter plate 4 .

[0070] The setting of the diverter plate 4 has a dividing effect, which can effectively prevent the impact of hot air from above (combustion area) from affecting the secondary air supply, which is conducive to the supply of secondary air required for central fire combustion under the diverter plate 4, making the combustion more complete.

[0071] Furthermore, the burner further comprises a burner head 5 ; an air outlet channel 51 is provided on the top surface of the burner head 5 , and the top surface of the air outlet channel 51 abuts against the bottom surface of the air inlet channel 33 .

[0072] There are multiple air inlet channels 33 on the air distribution plate 3, and the multiple air inlet channels 33 are arranged at intervals along the circumference of the air distribution plate 3. There are multiple air outlet channels 51 on the burner head 5, and the multiple air outlet channels 51 are arranged at intervals along the circumference of the burner head 5.

[0073] The plurality of air inlet channels 33 are in one-to-one contact with the plurality of air outlet channels 51. Electrode needles 7 and thermocouples 6 are also provided on the top surface of the burner head 5.

[0074] Furthermore, a third positioning structure is provided on the top surface of the burner head 5, and a fourth positioning structure 32 is provided on the bottom surface of the gas distribution plate 3. The third positioning structure is connected with the fourth positioning structure 32 to position the gas distribution plate 3 along the circumference of the gas distribution plate 3.

[0075] The third positioning structure is connected with the fourth positioning structure 32 to position the gas distribution plate 3 along the circumference of the gas distribution plate 3 so that the multiple air inlet channels 33 and the multiple air outlet channels 51 can be matched one by one to prevent dislocation and movement.

[0076] The third positioning structure may be a groove, and the fourth positioning structure 32 may be a pin. Alternatively, the third positioning structure may be a pin, and the fourth positioning structure 32 may be a groove.

[0077] In this embodiment, the third positioning structure is a groove, which is provided on the mounting base of the thermocouple 6 , and the fourth positioning structure 32 is a pin, which is plugged into the groove.

[0078] Example 2

[0079] The gas stove provided in this embodiment includes the burner provided in Example 1. When the medium-sized air outlet structure is connected to the top opening of the air inlet channel 33, the gas stove can meet normal combustion requirements. When the burner burns and yellow flames or incomplete combustion occurs, the installation position of the guide member 8 is adjusted so that the larger air outlet structure is connected to the top opening of the air inlet channel 33. The area of the air outlet structure is relatively increased, the air entrainment capacity is enhanced, and combustion is more complete, solving the problems of yellow flames and incomplete combustion. When the burner switches from high to low or turns off, and the flameout noise is loud, the installation position of the guide member 8 is adjusted so that the smaller air outlet structure is connected to the top opening of the air inlet channel 33. The area of the air outlet structure is relatively reduced, which can prevent the flame from being transferred to the burner head 5 cavity when the burner is turned off, reducing the flameout noise. The position of the guide member 8 can be adjusted according to the different usage conditions of the burner to address the problems of incomplete combustion and loud flameout noise.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A burner, characterized in that: It includes an air distribution plate (3) and a flow guide (8); The gas distribution plate (3) comprises a peripheral cavity, and the peripheral cavity is provided with an air inlet channel (33); The flow guide (8) is arranged in the peripheral cavity, and the flow guide (8) is provided with a plurality of air outlet structures, the plurality of air outlet structures are arranged at intervals along the circumference of the flow guide (8), and the areas of the plurality of air outlet structures are different; The plurality of air outlet structures can be respectively communicated with the top end opening of the air inlet channel (33).

2. The burner according to claim 1, characterized in that The plurality of air outlet structures include a first air outlet structure, a second air outlet structure and a third air outlet structure; The first air outlet structure, the second air outlet structure and the third air outlet structure are arranged at intervals along the circumference of the guide member (8); the area of the first air outlet structure is larger than that of the second air outlet structure, and the area of the second air outlet structure is larger than that of the third air outlet structure.

3. The burner according to claim 2, characterized in that The first air outlet structure comprises a first air outlet hole (81), and the outer contour of the first air outlet hole (81) is the same as the outer contour of the top opening of the air inlet channel (33); The second air outlet structure includes a plurality of second air outlet holes (82), and the plurality of second air outlet holes (82) are distributed in a matrix shape; the third air outlet structure includes a plurality of third air outlet holes (83), and the plurality of third air outlet holes (83) are distributed in a matrix shape; The radius of the second air outlet hole (82) is greater than the radius of the third air outlet hole (83).

4. The burner according to claim 1, characterized in that The peripheral cavity is provided with a first positioning structure; The guide member (8) is provided with a second positioning structure, and the first positioning structure is connected to the second positioning structure so that the guide member (8) is positioned at a position where the plurality of air outlet structures are respectively connected to the top end openings of the air inlet channel (33).

5. The burner according to claim 4, characterized in that The first positioning structure is a protrusion (31); The second positioning structure comprises a plurality of first notches, the plurality of first notches being respectively arranged at the outer edge of the flow guide (8), and the plurality of first notches being arranged at intervals along the circumference of the flow guide (8); and the protrusion (31) being capable of extending into the first notches.

6. The burner according to any one of claims 1 to 5, characterized in that: The burner further comprises a diverter plate (4); The diverter plate (4) is annular and fixed below the gas distribution plate (3). A second notch (42) is provided on the outer edge of the diverter plate (4), and the air inlet channel (33) extends into the second notch (42).

7. The burner according to claim 6, characterized in that The outer edge of the diverter plate (4) is provided with a downwardly extending flange structure (41).

8. The burner according to any one of claims 1 to 5, characterized in that: The burner also includes a burner head (5); An air outlet channel (51) is provided on the top surface of the burner head (5), and the top surface of the air outlet channel (51) abuts against the bottom surface of the air inlet channel (33).

9. The burner according to claim 8, characterized in that The top surface of the burner head (5) is provided with a third positioning structure, and the bottom surface of the gas distribution plate (3) is provided with a fourth positioning structure (32). The third positioning structure is connected to the fourth positioning structure (32) to position the gas distribution plate (3) along the circumference of the gas distribution plate (3).

10. A gas stove, characterized in that: The burner comprises the burner according to any one of claims 1 to 9.

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