Combustor and gas stove

Abstract

The invention relates to the technical field of gas stoves, and discloses a combustor and a gas stove. The burner comprises a burner cap assembly and a gas distribution disc, the burner cap assembly comprises a burner cap and a gas distribution disc, the burner cap is located above the gas distribution disc, a gas mixing chamber is defined by the burner cap and the gas distribution disc, and gas inlet holes are formed in the gas mixing chamber; the ejector is directly or indirectly communicated with the air inlet hole; wherein one or more gas inlet holes are formed in one gas mixing chamber, and when a plurality of gas inlet holes are formed in one gas mixing chamber, the plurality of gas inlet holes of one gas mixing chamber are arranged in an array. The gas mixing chamber is provided with the multiple gas inlet holes, and the multiple gas inlet holes of the gas mixing chamber are arranged in an array mode, so that the gas inlet amount of the gas mixing chamber can be guaranteed, meanwhile, the gas distribution uniformity of the gas mixing chamber is improved, and the combustion uniformity of the combustor is facilitated. Due to the arrangement of the multiple air inlet holes, the gas mixing cavity of the gas distribution disc does not need to be arranged to be annular, the strength of the gas distribution disc can be improved, and deformation of the gas distribution disc during high-temperature combustion is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of gas stoves, for example, to a burner and a gas stove. Background Art

[0002] At present, the existing burner is generally equipped with an ejector, a burner head, a gas distribution plate and a fire cover. The ejector is connected to the burner head. The fuel gas ejected by the ejector and the air-combustion gas of the primary air pass through the burner head. A gas distribution plate and other components are arranged above the burner head to allow the air-combustion gas to enter the fire cover for combustion.

[0003] In order to ensure the uniformity of the gas flow in the fire cover, the burner in the related art generally has a gas mixing chamber of a gas distribution plate in the shape of a ring, so as to increase the amount and uniformity of the gas flowing into the fire cover.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The gas distributor in the related art is provided with an annular gas mixing cavity, which makes the strength of the gas distributor relatively low, and the high temperature during combustion easily causes the gas distributor to deform.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiments provide a burner and a gas stove, which can improve the strength of a gas distribution plate while ensuring the uniformity of air intake in a gas mixing chamber, thereby improving the combustion uniformity of the burner.

[0009] An embodiment of the present disclosure provides a burner, which includes: a fire cover assembly, including a fire cover and an air distribution plate, the fire cover is located above the air distribution plate, and the fire cover and the air distribution plate enclose an air mixing chamber, and the air mixing chamber is provided with an air inlet hole; an ejector, which is directly or indirectly connected to the air inlet hole; wherein, there are one or more air inlet holes in an air mixing chamber, and when there are multiple air inlet holes in an air mixing chamber, the multiple air inlet holes in an air mixing chamber are arranged in an array.

[0010] Optionally, the mixing chamber is annular, and there are multiple mixing chambers, which are spaced apart in sequence from the inside to the outside. The multiple air inlet holes of an air mixing chamber include a first air inlet hole, and the first air inlet holes of the multiple air mixing chambers are spaced apart in sequence along the radial direction of the air distribution disk.

[0011] Optionally, the mixing chamber is annular, and there are multiple mixing chambers, which are arranged in sequence from the inside to the outside. The multiple mixing chambers include: a first mixing chamber, which is provided with a second air inlet hole; a second mixing chamber, which is sleeved on the outside of the first mixing chamber and is provided with a third air inlet hole; wherein the number of the third air inlet holes is greater than or equal to the number of the second air inlet holes.

[0012] Optionally, the ejector includes a first ejector, and the burner further includes: a pipeline connected between the outlet of the first ejector and the air inlet; wherein the number of the pipelines is the same as the number of the air inlet holes and corresponds one to one.

[0013] Optionally, the burner further comprises: a premixing chamber connected between the inlet of the pipeline and the outlet of the first ejector; wherein a plurality of air inlet holes of a mixing chamber are connected to a premixing chamber through a plurality of pipelines.

[0014] Optionally, the number of premixing chambers is less than or equal to the number of gas mixing chambers. When there are multiple premixing chambers, the multiple premixing chambers are sequentially spaced apart along the height direction.

[0015] Optionally, when there are multiple pipelines, the multiple pipelines are connected to the side wall of the premixing chamber, and the multiple pipelines corresponding to a mixing chamber are arranged in sequence along the circumference of the premixing chamber; and / or, the first ejector is connected to the bottom of the premixing chamber.

[0016] Optionally, the first ejector at least partially extends in a horizontal direction; and / or the premixing chamber is located below the gas distribution plate, and at least part of the pipeline extends in a vertical direction.

[0017] Optionally, the pipeline includes: a second ejector, the outlet of the second ejector is connected to the air inlet; and a connecting pipeline, connecting between the inlet of the second ejector and the outlet of the premixing chamber.

[0018] An embodiment of the present disclosure further provides a gas stove, which includes a burner as described in any one of the above embodiments.

[0019] The burner and gas stove provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The fuel gas or air-combustion gas ejected by the ejector flows into the air inlet hole, and then flows into the gas mixing chamber through the air inlet hole, thereby realizing the combustion of the fire cover. When the volume of the gas mixing chamber is small, one air inlet hole can meet the gas demand of the gas mixing chamber. When the volume of the gas mixing chamber is large, a plurality of air inlet holes are arranged in an array in a gas mixing chamber, which can ensure the air intake of the gas mixing chamber and improve the uniformity of gas distribution in the gas mixing chamber, which is beneficial to the combustion uniformity of the burner. The setting of multiple air inlet holes makes it unnecessary to set the gas mixing chamber of the gas distribution plate in a ring shape, which can improve the strength of the gas distribution plate and avoid deformation of the gas distribution plate during high-temperature combustion.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a partial structural schematic diagram of a gas stove provided by an embodiment of the present disclosure;

[0024] Figure 2 is a structural schematic diagram of a fire cover provided by an embodiment of the present disclosure from one perspective;

[0025] Figure 3 is a structural schematic diagram of a fire cover provided by an embodiment of the present disclosure from another perspective;

[0026] Figure 4 is a structural schematic diagram of a gas distribution plate provided by an embodiment of the present disclosure from a perspective;

[0027] Figure 5 is a schematic structural diagram of a gas distribution plate provided by an embodiment of the present disclosure from another perspective;

[0028] Figure 6 is a structural schematic diagram of a gas distribution plate provided by an embodiment of the present disclosure from another perspective;

[0029] Figure 7 is a schematic cross-sectional view of a local structure of a burner provided by an embodiment of the present disclosure;

[0030] Figure 8 is a structural schematic diagram of a burner provided in an embodiment of the present disclosure;

[0031] Fig. 9 is a partial structural schematic diagram of a burner provided in an embodiment of the present disclosure;

[0032] Fig.10 is a schematic structural diagram of a liquid receiving tray provided in an embodiment of the present disclosure;

[0033] Fig.11 is a partial structural schematic diagram of a burner provided in an embodiment of the present disclosure;

[0034] Fig.12 It is a schematic diagram of the partial structure of another burner provided in an embodiment of the present disclosure.

[0035] Reference numerals:

[0036] 10. Fire cover; 101. Fire hole; 102. First step; 103. Center fire cover; 104. Inner ring fire cover; 105. Middle ring fire cover; 106. Outer ring fire cover; 107. Fourth fire cover; 20. Gas distributor; 201. Secondary air slot; 202. Second step; 203. Secondary air hole; 204. Mixing chamber; 2041. Center mixing chamber; 2042. Inner ring mixing chamber; 2043. Middle ring mixing chamber; 2044. Outer ring mixing chamber; 205. Inlet hole; 2051. First inlet Air hole; 2052, second air inlet hole; 2053, third air inlet hole; 206, edge guard; 207, mixing chamber; 30, first ejector; 40, pipeline; 401, second ejector; 4011, outlet of second ejector; 4012, third step; 402, connecting pipeline; 4021, air hole; 50, premixing chamber; 501, main body; 502, cover body; 503, first premixing chamber; 504, second premixing chamber; 505, third premixing chamber; 60, liquid receiving tray; 601, through hole. DETAILED DESCRIPTION

[0037] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0038] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0039] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0040] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0041] Unless otherwise stated, the term "plurality" means two or more.

[0042] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0044] like Figures 1 to 12 As shown, an embodiment of the present disclosure provides a gas stove, which includes a burner and a liquid collecting pan 60. The burner is used to realize combustion, and the liquid collecting pan 60 is connected to the burner and is used to collect soup overflowed from the pot.

[0045] The present disclosure provides a burner, such as Figure 1 As shown, the burner includes a fire cover 10, a gas distribution plate 20 and an ejector. The gas distribution plate 20 is configured with a gas mixing chamber 204. The fire cover 10 is arranged above the gas mixing chamber 204, so that the fire cover 10 and the gas distribution plate 20 enclose a gas mixing chamber 207, and the gas mixing chamber 207 includes the gas mixing chamber 204. The fire cover 10 is provided with a fire hole 101, and the fire hole 101 is used to realize the combustion of the fire cover 10. The inlet of the gas distribution plate 20 is connected to the outlet of the ejector, and the ejector ejects the gas or the mixed gas of the gas and air (hereinafter collectively referred to as gas for the convenience of description) into the gas mixing chamber 207, and the gas flows to the fire hole 101 through the gas mixing chamber 207, providing gas for the combustion of the flame at the fire hole 101.

[0046] Optionally, the fire hole 101 is provided in at least one of the top wall of the fire cover 10 and the side wall of the fire cover 10 .

[0047] Optionally, the fire cover 10 is annular, and there are multiple fire covers 10. The multiple fire covers 10 are arranged in sequence from the inside to the outside. Specifically, the multiple fire covers 10 are arranged in sequence from the outside to the inside. The arrangement of the multiple fire covers 10 increases the fire area of ​​the burner, thereby improving the temperature uniformity of the burner, and improving the thermal efficiency and heating effect of the burner.

[0048] Optionally, the forms of the fire holes 101 of the multiple fire covers 10 may be the same or different. In actual use, the forms of the fire holes 101 of the multiple fire covers 10 may be set according to usage requirements.

[0049] For example, Figure 1 As shown, there are four fire covers 10, which are arranged in sequence from the inside to the outside. The four fire covers 10 include a central fire cover 103, an inner ring fire cover 104, a middle ring fire cover 105 and an outer ring fire cover 106 from the inside to the outside.

[0050] like Figures 1 to 3 As shown, the burner includes a fire cover assembly, which includes a fire cover and an air distribution plate. The fire cover is located above the air distribution plate, and the fire cover and the air distribution plate enclose an air mixing chamber. The air mixing chamber is provided with an air inlet hole, and a plurality of secondary air holes 203 are provided between adjacent fire covers 10. The plurality of secondary air holes 203 are arranged in sequence at intervals along the circumference of the fire cover assembly, and the fire holes 101 of adjacent fire covers 10 are all connected to the secondary air holes 203.

[0051] With the burner of the embodiment of the present disclosure, a plurality of secondary air holes 203 are provided between adjacent fire covers 10 , which can ensure the amount of secondary air at the fire holes 101 , thereby improving the combustion completeness of the flame at the fire holes 101 .

[0052] Optionally, the fire hole 101 extends radially of the fire cover 10 and penetrates the top wall and the side wall of the fire cover 10, so that the flame at the fire hole 101 is stable and the flame separation phenomenon is avoided. At the same time, the fire hole 101 penetrates the top wall and the side wall of the fire cover 10 radially, so that when the fire cover 10 is annular, the fire hole 101 penetrates the annular cavity, and both sides of the fire hole 101 can contact with the secondary air, which can improve the utilization rate of the fire hole 101 for the secondary air, reduce the influence of the secondary air on the uniform temperature effect, and then achieve the uniform temperature heating effect with efficient heat transfer.

[0053] Alternatively, if Figure 2 and Figure 3 As shown, the fire hole 101 is opened at the top and is tilted relative to the height direction of the fire cover 10. The tilt directions and tilt angles of the multiple fire holes 101 of a fire cover 10 are the same, so that the fire cover 10 forms a swirl airflow.

[0054] In the disclosed embodiment, the fire hole 101 extends radially along the fire cover 10, and the fire hole 101 is opened on both the top wall and the side wall of the fire cover 10, thereby increasing the fire outlet area of ​​the fire hole 101. The fire hole 101 is tilted relative to the height direction of the fire cover 10, and the tilt directions and angles of the plurality of fire holes 101 are the same, so that a fire cover 10 can form a swirl airflow, so that the smoke generated by the combustion of the fire cover 10 moves toward the bottom of the pot and stays at the center of the bottom of the pot, thereby reducing the loss of high-temperature smoke and improving thermal efficiency.

[0055] Optionally, the fire holes 101 of the multiple fire covers 10 have the same inclination direction and inclination angle to form multiple swirl airflows.

[0056] In the disclosed embodiment, the fire holes 101 of the multiple fire covers 10 form multiple swirl airflows, so that the high-temperature flue gas generated by the combustion of the fire covers 10 stays at the center of the bottom of the pot under the action of the layers of swirl air field, reducing the loss of the high-temperature flue gas, improving thermal efficiency, and evenly heating the bottom of the pot, thereby improving the uniform temperature effect of the burner.

[0057] Optionally, the multiple fire holes 101 of a fire cover 10 are evenly spaced in sequence along the circumference of the fire cover 10 , which can further ensure the combustion uniformity of the fire cover 10 .

[0058] Optionally, the fire hole 101 is in a long rectangular shape to increase the combustion area of ​​the fire hole 101 .

[0059] For example, Figure 2 As shown, the fire hole 101 is in a long rectangular shape and passes through the side wall and the top wall of the fire cover 10.

[0060] Optionally, the inclination angle of the fire hole 101 ranges from 30° to 45°.

[0061] In the disclosed embodiment, when the inclination angle of the fire hole 101 is less than 30°, the swirl effect of the fire hole 101 is not obvious, and the guiding effect on the smoke is small. When the inclination angle of the fire hole 101 is greater than 45°, the inclination angle of the fire hole 101 is too large, and the height of the flame at the fire hole 101 is high, which easily causes the smoke to rise. Controlling the inclination angle of the fire hole 101 between 30° and 45° can not only ensure the swirl effect on the smoke, but also reduce the smoke generated by the combustion of the fire cover 10.

[0062] For example, the inclination angle of the fire hole 101 may be 30°, 35°, 40°, or 45°.

[0063] Optionally, the number of secondary air holes 203 is the same as the number of fire holes 101 of at least one adjacent fire cover 10 and corresponds one to one. In this way, secondary air can be accurately added to the fire holes 101, the flame combustion sufficiency at the fire holes 101 is improved, smoke is reduced, and the combustion uniformity of the fire cover 10 is improved.

[0064] Optionally, the multiple fire covers 10 include a first fire cover and a second fire cover, the first fire cover is provided with a first fire hole 101, the first fire hole 101 is tilted relative to the height direction of the first fire cover, the number of the first fire holes 101 is multiple, and the tilt directions of the multiple first fire holes 101 are the same. The second fire cover is sleeved on the outside of the first fire cover, the second fire cover is provided with a second fire hole 101, the second fire hole 101 is tilted relative to the height direction of the second fire cover, the number of the second fire holes 101 is multiple, and the tilt directions of the multiple second fire holes 101 are the same. Among them, first secondary air holes 203 are provided between the first fire cover and the second fire cover, and the number of the first secondary air holes 203 is the same as the number of the first fire holes 101 and corresponds one to one.

[0065] In the disclosed embodiment, the number of secondary air holes 203 between the two fire covers 10 is the same as the number of fire holes 101 of the inner fire cover 10 and corresponds one to one, which facilitates the processing of the secondary air holes 203 and can also ensure the strength of the fire cover assembly.

[0066] It should be noted that the second fire cover is located on the outside of the first fire cover. When the burner is a double-ring burner, the second fire cover is an inner fire cover, and the first fire cover is an outer fire cover. When the burner is a three-ring burner, the second fire cover is a central fire cover, and the first fire cover is an inner ring fire cover, or the second fire cover is an inner ring fire cover, and the first fire cover is an outer ring fire cover. When the burner is a four-ring burner, the first fire cover can be the second fire cover as the central fire cover, and the first fire cover as the inner ring fire cover, or the second fire cover is the inner ring fire cover, and the first fire cover is the middle ring fire cover, or the second fire cover is the middle ring fire cover, and the first fire cover is the outer ring fire cover. It can be understood that burners with internal and external fire covers 10 all belong to optional embodiments of the present application.

[0067] Optionally, a plurality of secondary air holes 203 are uniformly spaced in sequence along the circumference of the fire cover 10 .

[0068] In the embodiment of the present disclosure, multiple secondary air holes 203 are evenly arranged to ensure the uniformity of secondary air replenishment, thereby ensuring the combustion uniformity of the fire cover 10 and improving the uniform temperature effect of the burner. At the same time, it can also prevent insufficient air replenishment in local fire holes 101, resulting in excessive local smoke and uneven flame height of the fire holes 101.

[0069] Optionally, the secondary air hole 203 is circular. Here, the circular secondary air hole 203 can further improve the replenishment uniformity of the secondary air.

[0070] Alternatively, if Figure 1 and Figure 4As shown, the circular secondary air holes 203 are evenly spaced in sequence along the circumference of the fire cover 10. In this way, the circular secondary air holes 203 can accurately supplement the roots of the swirl flames on both sides under the action of the swirl air flow field on both sides, preventing the swirl flames on both sides from colliding and causing increased smoke emissions. Moreover, the uniform circular fire holes 101 can form a swirl field of air under the action of the swirl air flow field on both sides, which is fully mixed with the gas and improves the combustion performance.

[0071] Optionally, the shapes and sizes of the plurality of secondary air holes 203 are the same. Here, the shapes and sizes of the secondary air holes 203 are the same, which facilitates the processing of the secondary air holes 203 and further improves the uniformity of the secondary air supplement amount, thereby improving the uniform temperature effect of the burner.

[0072] like Figure 1 As shown, there are four fire covers 10, and three circles of secondary air holes 203 are arranged between the four fire covers 10. The multiple swirl design can form a swirl field of the mixed gas with the multiple secondary air inlet holes 205, so that the fuel gas and the secondary air are fully mixed again.

[0073] Optionally, the fire cover assembly also includes an air distribution plate 20, which defines an air mixing chamber 204. The fire cover 10 is arranged above the air mixing chamber 204. The number of the air mixing chambers 204 is the same as that of the fire cover 10 and corresponds one to one. Secondary air holes 203 are provided between adjacent air mixing chambers 204. The air mixing chamber 204 is annular, and the multiple air mixing chambers 204 are arranged in sequence from the inside to the outside.

[0074] In the disclosed embodiment, the fire cover 10 and the gas distribution plate 20 enclose an air mixing chamber 207, and the air mixing chamber 207 is connected to the fire hole 101. The number of the air mixing chambers 204 of the gas distribution plate 20 is the same as that of the fire cover 10 and corresponds one to one, so that each fire cover 10 can accurately provide gas, and the gas supply of each fire cover 10 can be adjusted. The adjacent air mixing chambers 204 are provided with secondary air holes 203, so that the structure of the gas distribution plate 20 can be fully utilized to realize the gas and secondary air supply of the fire cover 10 at the same time. Moreover, the gas distribution plate 20 is provided with secondary air holes 203. Compared with the annular secondary air passage provided on the gas distribution plate in the related art, the secondary air holes 203 can increase the strength of the gas distribution plate 20 and avoid deformation of the gas distribution plate 20 during high-temperature combustion.

[0075] Optionally, the air distribution plate 20 is further configured with secondary air slots 201 , which are located between adjacent air mixing chambers 204 , protrude from the air mixing chambers 204 in height, and are provided with secondary air holes 203 .

[0076] In the disclosed embodiment, the secondary air groove 201 protrudes in height from the mixing chamber 204, and a secondary air hole 203 is opened in the secondary air groove 201. This increases the material used in the secondary air groove 201, further increases the overall strength of the air distributor 20, and can prevent the high temperature during combustion from deforming the air distributor 20, thereby ensuring the performance of the air distributor 20.

[0077] For example, Figure 6 As shown, the lower end of the secondary air slot 201 is open, and the secondary air slot 201 includes an upper side wall, an outer side wall and an inner side wall, wherein the outer side wall is connected to the outer side of the upper side wall and extends downward, and the inner side wall is connected to the inner side of the upper side wall and extends downward, wherein the secondary air hole 203 is provided on the upper side wall and penetrates through the upper side wall to communicate with the outside. The outer side wall of the secondary air slot 201 on the inner side of the adjacent secondary air slots 201 and the inner side wall of the secondary air slot 201 on the outer side enclose a mixing chamber 204.

[0078] Optionally, when there are multiple mixing chambers 204 and secondary air slots 201, the multiple mixing chambers 204 and the multiple secondary air slots 201 are sequentially arranged from the inside to the outside, so that both sides of the fire cover 10 can be supplemented with secondary air, thereby improving the completeness and uniformity of combustion.

[0079] Alternatively, if Figure 7 As shown, the lower end portion of at least one side wall of the fire cover 10 is constructed with a first step portion 102, and the upper end portion of at least one side wall of the mixing chamber 204 is constructed with a second step portion 202. When the fire cover 10 is placed above the mixing chamber 204, the first step portion 102 and the second step portion 202 are engaged with each other to seal the fire cover 10 and the mixing chamber 204.

[0080] In the embodiment of the present disclosure, the fire cover 10 and the gas distribution plate 20 are connected by the connection method of the first step portion 102 and the second step portion 202, so that the side wall of the fire cover 10 can be closely fitted with the side wall of the gas mixing chamber 204, achieving a better sealing effect and preventing gas leakage. In addition, the supporting effect of the gas distribution plate 20 on the fire cover 10 can be increased, and the connection stability between the fire cover 10 and the gas distribution plate 20 can be improved.

[0081] Optionally, the inner wall and the outer wall of the secondary air groove 201 are partially recessed downward to form a second step portion 202 .

[0082] For example, Figure 1 and Figure 7As shown, multiple fire covers 10 include a central fire cover 103, which is located at the innermost side of the fire cover 10. The central fire cover 103 includes a first top wall and an annular side wall, which extends downward from the outer edge of the first top wall. A first step portion 102 is provided at the lower end of the annular side wall, and a second step portion 202 is provided at the upper end of the side wall of the central mixing chamber 2041 corresponding to the central fire cover 103. When the central fire cover 103 is covered above the central mixing chamber 2041, the first step portion 102 is engaged with the second step portion 202.

[0083] The multiple fire covers 10 also include a third fire cover, which is sleeved on the outside of the central fire cover 103. The third fire cover includes a second top wall, an inner ring wall and an outer ring wall. The inner ring wall is connected to the inside of the second top wall and extends downward from the inner edge of the second top wall. The outer ring wall is connected to the outside of the second top wall and extends downward from the outer edge of the second top wall. The lower ends of the inner ring wall and the outer ring wall are both provided with a first step portion 102, the gas distribution plate 20 is configured with a third gas mixing chamber, and the upper ends of the outer and inner side walls of the third gas mixing chamber are both configured with a second step portion 202. When the third fire cover is arranged on the third gas mixing chamber, the first step portion 102 and the second step portion 202 are buckled. Here, the third fire cover can be an outer ring fire cover 106, an inner ring fire cover 104 or a middle ring fire cover 105.

[0084] Optionally, the gas distribution plate 20 includes a gas distribution plate body and a protective edge 206, and the gas distribution plate body is constructed with a mixing chamber 204 and a secondary air groove 201; the protective edge 206 is arranged on the outside of the gas distribution plate body and extends in a circular shape along the circumference of the gas distribution plate body; wherein, when the fire cover 10 is covered above the mixing chamber 204, the protective edge 206 protrudes from the outside of the outermost fire cover 10.

[0085] In the disclosed embodiment, the outermost edge of the gas distribution plate 20 is provided with a guardrail 206, which can prevent the flame of the outermost fire cover 10 from extending to the outside of the gas distribution plate 20, thereby preventing the flame of the outermost fire cover 10 from burning other components, such as the liquid storage plate 60 and other components, causing heat transfer losses, thereby ensuring the thermal efficiency of the burner.

[0086] For example, Figure 1 As shown, when the gas stove includes a liquid collecting pan 60, the liquid collecting pan 60 is located below the gas distribution pan 20, the multiple fire covers 10 include a fourth fire cover 107, the fourth fire cover 107 is located at the outermost side of the multiple fire covers 10, and the edge guard 206 of the gas distribution pan 20 is located on the outer side of the fourth fire cover 107 to prevent the flame of the fourth fire cover 107 from burning the liquid collecting pan 60.

[0087] Alternatively, if Figure 5 and Figure 6As shown, the mixing chamber 207 is provided with an air inlet hole 205, and the air inlet hole 205 is connected to the mixing chamber 207. The burner includes an ejector, and the outlet of the ejector is directly or indirectly connected to the air inlet hole 205, wherein the air inlet hole 205 of an air mixing chamber 207 is one or more, and when the air inlet hole 205 of an air mixing chamber 207 is multiple, the multiple air inlet holes 205 of an air mixing chamber 207 are arranged in an array.

[0088] In the disclosed embodiment, the fuel gas or air-combustion gas ejected by the ejector flows into the air inlet hole 205, and then flows into the gas mixing chamber 207 through the air inlet hole 205, thereby realizing the combustion of the fire cover 10. When the volume of the gas mixing chamber 207 is small, one air inlet hole 205 can meet the gas demand of the gas mixing chamber 207. When the volume of the gas mixing chamber 207 is large, a plurality of air inlet holes 205 are provided in a gas mixing chamber 207, and the plurality of air inlet holes 205 of the gas mixing chamber 207 are arranged in an array, so that the air intake of the gas mixing chamber 207 can be ensured, and the uniformity of the gas distribution in the gas mixing chamber 207 can be improved, which is beneficial to the combustion uniformity of the burner. The provision of a plurality of air inlet holes 205 makes it unnecessary to set the gas mixing chamber 204 of the gas distribution plate 20 in a ring shape, which can improve the strength of the gas distribution plate 20 and avoid deformation of the gas distribution plate 20 during high-temperature combustion.

[0089] In addition, the array-like arrangement of the air inlet holes 205 can evenly distribute the gas entering the fire cover 10, thereby preventing uneven distribution of the gas, which may lead to changes in the overall gas pressure and uneven combustion.

[0090] It should be noted that the array arrangement in the present application means that a plurality of air inlet holes 205 are arranged in sequence and evenly spaced along the circumference of an air mixing chamber 207 .

[0091] Optionally, the ejector may supply air and fuel gas in the form of blast and / or natural ejection, that is, the air intake mode of the ejector may be natural ejection or blast premixing.

[0092] In a specific embodiment, Figure 7 As shown, the ejector is directly connected to the air inlet 205, and the ejector can directly eject the gas into the gas mixing chamber 207. Optionally, the ejector is located below the gas distribution plate 20, and the ejector extends in the vertical direction so that the gas in the ejector can enter the gas mixing chamber 207. In another specific embodiment, as shown in FIG. Figure 8 and Fig.12 As shown, other components, such as premixing components, are provided between the ejector and the air inlet 205 to achieve indirect communication between the ejector and the air inlet 205. It can be understood that burners capable of transferring the gas in the ejector to the mixing chamber 207 through the air inlet 205 are optional embodiments of the present application.

[0093] Optionally, there are multiple mixing chambers 207, the mixing chambers 207 are annular, and the multiple mixing chambers 207 are arranged in sequence from the inside to the outside. The multiple air inlet holes 205 of an air mixing chamber 207 include a first air inlet hole 2051, and the first air inlet holes 2051 of the multiple mixing chambers 207 are arranged in sequence along the radial direction of the gas distribution plate 20.

[0094] In the disclosed embodiment, the multiple air inlet holes 205 of an air mixing chamber 207 are arranged in an array. When the number of air mixing chambers 207 is multiple, at least one air inlet hole 205 of the multiple air mixing chambers 207 is sequentially spaced along the radial direction of the air distribution disk 20. It can be understood that: the first air inlet holes 2051 of the multiple air mixing chambers 207 are arranged along the radial direction of the air distribution disk 20 and in the same straight line, so that the pipeline 40 or the ejector connected to the air inlet hole 205 is arranged more compactly, avoiding interference between them, and easy to set. Optionally, the air inlet holes 205 of the multiple air mixing chambers 207 are arranged in the same array. The same array arrangement of the air inlet holes 205 of the multiple air mixing chambers 207 can minimize the external air resistance entering the secondary air hole 203 and improve thermal efficiency.

[0095] Optionally, the air inlet 205 is arranged at the bottom of the gas mixing chamber 204, that is, at the bottom wall of the gas distribution plate 20, so as to facilitate the arrangement of the ejector and the inflow of the gas.

[0096] For example, Figure 5 As shown, the gas distribution plate 20 is constructed with four gas mixing chambers 204 which are spaced apart from each other from the inside to the outside. The four gas mixing chambers 204 are all provided with first gas inlet holes 2051 . The first gas inlet holes 2051 are spaced apart from each other along the radial direction of the gas distribution plate 20 .

[0097] Optionally, the multiple mixing chambers 207 include a first mixing chamber 207 and a second mixing chamber 207, the first mixing chamber 207 is provided with a second air inlet hole 2052; the second mixing chamber 207 is sleeved on the outside of the first mixing chamber 207, and the second mixing chamber 207 is provided with a third air inlet hole 2053; wherein the number of the third air inlet holes 2053 is greater than or equal to the number of the second air inlet holes 2052.

[0098] In the embodiment of the present disclosure, since the mixing chamber 207 is annular and is arranged in sequence from the inside to the outside, the volume and circumference of each mixing chamber 207 are different. The volume and circumference of the second mixing chamber 207 located on the outside are larger. Therefore, the second mixing chamber 207 located on the outside requires a larger amount of gas. The number of third air inlet holes 2053 provided in the second mixing chamber 207 located on the outside is greater than or equal to the number of second air inlet holes 2052 of the first mixing chamber 207 located on the inside, so as to ensure the gas supply amount of the second mixing chamber 207 on the outside and ensure the uniformity of the gas flow in the second mixing chamber 207 on the outside.

[0099] For example, Figure 4 As shown, the gas distribution plate 20 is sequentially constructed with a central gas mixing chamber 2041, an inner ring gas mixing chamber 2042, a middle ring gas mixing chamber 2043 and an outer ring gas mixing chamber 2044 from the inside to the outside, and the fire cover 10 is provided with a central fire cover 103, an inner ring fire cover 104, a middle ring fire cover 105 and an outer ring fire cover 106, thereby forming a central gas mixing chamber, an inner ring gas mixing chamber, a middle ring gas mixing chamber and an outer ring gas mixing chamber. The number of air inlet holes 205 of the inner ring gas mixing chamber is greater than the number of air inlet holes 205 of the central gas mixing chamber, the number of air inlet holes 205 of the middle ring gas mixing chamber is greater than the number of air inlet holes 205 of the inner ring gas mixing chamber, and the number of air inlet holes 205 of the outer ring gas mixing chamber is equal to the number of the middle ring gas mixing chamber.

[0100] Alternatively, if Figure 8 , Fig.11 and Fig.12 As shown, the ejector includes a first ejector 30, and the burner also includes a pipeline 40, which is connected between the first ejector 30 and the mixing chamber 207; wherein the number of the pipelines 40 is the same as the number of the air inlet holes 205 and corresponds one to one.

[0101] In the disclosed embodiment, each air inlet hole 205 is provided with a corresponding pipeline 40 to ensure the uniformity of air intake of each air inlet hole 205, thereby improving the uniformity of the gas in the gas mixing chamber 207 and ensuring the uniform temperature effect of the burner. In addition, multiple pipelines 40 are connected to the air inlet holes 205 below the gas distribution plate 20, and the pipelines 40 play a role in supporting the gas distribution plate 20. The air inlet holes 205 are arranged in an array, and the pipelines 40 are also arranged in an array, so that the overall gas distribution plate 20 is evenly stressed.

[0102] Optionally, the first ejector 30 may supply air-fuel gas in the form of blasting and / or natural injection, that is, the air intake mode of the first ejector 30 may be natural injection or blast premixing.

[0103] Alternatively, if Figure 8 and Fig. 9 As shown, the burner further includes a premixing chamber 50, which is connected between the inlet of the pipeline 40 and the outlet of the first ejector 30, that is, the pipeline 40 is connected to the outlet of the premixing chamber 50, and the outlet of the first ejector 30 is connected to the inlet of the premixing chamber; the air inlet 205 of the mixing chamber 207 is connected to the outlet of the premixing chamber 50 through the pipeline 40. When a mixing chamber 207 is provided with a plurality of air inlet holes 205, the plurality of air inlet holes 205 of a mixing chamber 207 are connected to a premixing chamber 50 through the pipeline 40.

[0104] In the disclosed embodiment, the gas (gas or air-fuel gas) ejected by the first ejector 30 first enters the premixing chamber 50, is fully premixed in the premixing chamber 50, and then flows into the gas mixing chamber 207 through the pipeline 40, so that the gas and the primary air can be fully mixed and evenly mixed, and then accurately enter the gas mixing chamber 207 through the pipeline 40 to replenish gas for one or more gas mixing chambers 207, thereby ensuring the combustion of the burner. In this way, there is no need to set up additional components such as burners and seals, which reduces the structural complexity of the burner, and there is no need to consider the sealing of the connection between the burner or seals and other components, which simplifies the structure of the burner while ensuring the uniform temperature effect and sealing of the burner.

[0105] The burner of the disclosed embodiment breaks with the traditional burner head design. The premixing chamber 50 can ensure that the fuel gas and air are fully mixed. The mixed gas then flows into the gas distribution plate 20 with uniform pressure, avoiding uneven pressure distribution at the air outlet and ensuring uniform combustion of the burner.

[0106] Alternatively, if Figure 8 and Fig.12 As shown, the number of premixing chambers 50 is less than or equal to the number of gas mixing chambers 207. It can be understood that one gas mixing chamber 204 is connected to at least one gas mixing chamber 207. This can reduce the number of premixing chambers 50, reduce the size of the burner, and facilitate the installation of the burner.

[0107] Optionally, when there are multiple premixing chambers 50, the multiple premixing chambers 50 are sequentially spaced apart along the height direction.

[0108] In the disclosed embodiment, each gas mixing chamber 207 is provided with an independent premixing chamber 50, so that the heat load of each gas mixing chamber 207 can be set separately. In addition, the traditional burner design is broken to ensure that the gas and air are fully mixed, and the pressure is uniform when flowing into the gas distribution plate 20, avoiding the uneven pressure distribution of the gas outlet.

[0109] Optionally, the centers of the multiple premixing chambers 50 are located on the same vertical line, that is, the multiple premixing chambers 50 are located on the same central axis, which can further reduce the space at the bottom of the burner.

[0110] Optionally, the center of the premixing chamber 50 is on the same vertical line as the center of the gas distribution plate 20, that is, the premixing chamber 50, the gas distribution plate 20 and the fire cover 10 are located on the same central axis, which can reduce the connection length of the pipeline 40 and further reduce the space below the burner.

[0111] Optionally, there are multiple premixing chambers 50, and the multiple premixing chambers 50 include a first premixing chamber 503 and a second premixing chamber 504 arranged in sequence from top to bottom, wherein the third mixing chamber 207 is connected to the first premixing chamber 503, and the fourth mixing chamber 207 corresponds to the second premixing chamber 504, wherein the third mixing chamber 207 and the fourth mixing chamber 207 are arranged in sequence from the inside to the outside.

[0112] In the embodiment of the present disclosure, when there are multiple premixing chambers 50 and multiple gas mixing chambers 207, the premixing chamber 50 located at the top is connected to the gas mixing chamber 207 on the inside, and the premixing chamber 50 located at the bottom is connected to the gas mixing chamber 207 on the outside, which facilitates the arrangement of multiple pipelines 40 and avoids interference between the pipelines 40.

[0113] For example, Figure 8 As shown, when there are three premixing chambers 50, the plurality of premixing chambers 204 further include a third premixing chamber 505, and the third premixing chamber 505 is located below the second premixing chamber 504. In a specific embodiment, the central mixing chamber and the inner ring mixing chamber are both connected to the first premixing chamber 503. Since the central mixing chamber requires less gas, the central mixing chamber and the inner ring mixing chamber share one premixing chamber 50, which can also meet the use requirements of the burner. In another specific embodiment, the central mixing chamber is directly connected to the first ejector 30 through the pipeline 40. Similarly, since the central mixing chamber requires less gas, the ejection amount of the first ejector 30 can meet the combustion of the central fire cover 103, so the central mixing chamber can be directly connected to the first ejector 30.

[0114] Optionally, the second premixing chamber 504 is connected to the middle ring gas mixing chamber, and / or the third premixing chamber 505 is connected to the outer ring gas mixing chamber. In this way, the gas demand of the middle ring gas mixing chamber and the outer ring gas mixing chamber can be met, and the gas amount of the middle ring gas mixing chamber and the outer ring gas mixing chamber can be adjusted.

[0115] Optionally, the diameters of the multiple pipelines 40 corresponding to a premixing chamber 50 are the same, so that the flow rates of the gas flowing out of the premixing chamber 50 are the same.

[0116] Optionally, the diameters of the pipelines 40 corresponding to different premixing chambers 50 may be the same or different.

[0117] Optionally, the pipeline 40 is connected to the side wall of the premixing chamber 50 , and a plurality of pipelines 40 are sequentially spaced along the circumference of the premixing chamber 50 , and / or the first ejector 30 is connected to the bottom of the premixing chamber 50 .

[0118] In the disclosed embodiment, the side wall of the premixing chamber 50 is used for air outlet and / or air intake at the bottom, which is convenient for the arrangement of the pipeline 40 and the first ejector 30, reduces the height of the burner, and facilitates the installation of the burner. In addition, the outlet of the premixing chamber 50 is arranged on the top surface and / or the side of the premixing chamber 50, and the inlet of the premixing chamber 50 is arranged at the bottom of the premixing chamber 50. In particular, when the outlet of the premixing chamber 50 is arranged on the side of the premixing chamber 50, the premixing chamber 50 adopts the form of air intake from the bottom and air outlet from the side, so as to ensure that the gas entering the premixing chamber 50 enters vertically, is fully mixed in the premixing chamber 50, and is uniformly discharged from the side, enters the pipeline 40 on the side, and then flows into the mixing chamber 207.

[0119] Optionally, when multiple pipelines 40 corresponding to a mixing chamber 207 are all connected to a premixing chamber 50, the multiple pipelines 40 of a mixing chamber 207 are evenly spaced in sequence along the circumference of the premixing chamber 50, which can further ensure that the pressure and flow rate of the gas flowing out of the premixing chamber 50 are uniform.

[0120] Optionally, the first ejector 30 at least partially extends in the horizontal direction; and / or the premixing chamber 50 is located below the gas distribution plate 20, and at least a portion of the pipeline 40 extends in the vertical direction.

[0121] In the disclosed embodiment, the first ejector 30 at least partially extends in the horizontal direction, which can reduce the overall height of the burner and facilitate the installation of the burner. At least part of the pipeline 40 extends in the vertical direction, which is convenient for guiding the gas in the premixing chamber 50 to the gas inlet 205.

[0122] Optionally, the number of the first ejectors 30 is the same as the number of the premixing chambers 50 and corresponds one to one to ensure that the gas supply amount of each premixing chamber 50 is adjustable.

[0123] Optionally, the pipeline 40 includes a second ejector 401 , an outlet 4011 of the second ejector is connected to the gas mixing chamber 207 , and an inlet of the second ejector 401 is connected to the outlet of the premixing chamber 50 .

[0124] In the disclosed embodiment, the second ejector 401 can perform secondary ejection on the gas flowing into the gas mixing chamber 207 from the premixing chamber 50, thereby realizing multiple ejections, thereby ensuring the air content in the gas flowing into the gas mixing chamber 207 and ensuring the sufficiency of combustion. Moreover, the second ejector 401 introduces the gas in the pipeline 40 into the gas mixing chamber 207 of the burner again through non-contact ejection.

[0125] Optionally, the second ejector 401 is located below the gas distribution plate 20, and the outlet 4011 of the second ejector is connected to the air inlet 205, wherein the outlet 4011 of the second ejector is trumpet-shaped, which can reduce the pressure of the air outlet, reduce the flow rate of the gas at the outlet 4011 of the second ejector, reduce the impact on the fire cover 10, and ensure uniform distribution of gas in the gas distribution plate 20.

[0126] Optionally, the second ejector 401 extends in the vertical direction so as to guide the gas in the premixing chamber 50 below into the gas mixing chamber 207 .

[0127] Optionally, the second ejector 401 is fixedly connected to the gas distribution plate 20, so that the gas distribution plate 20 and the second ejector 401 are an integrated structure, reducing the connection work between the second ejector 401 and the gas distribution plate 20, and there is no need to assemble and position the second ejector 401. In addition, the connection sealing between the second ejector 401 and the air inlet 205 can be improved to avoid air leakage. Such a gas distribution plate 20 is fixedly connected to the second ejector 401, so that the gas distribution plate 20 is an independent gas distribution plate 20 with an ejection function, which can be adapted to a variety of burners.

[0128] For example, the second ejector 401 is welded or integrally formed with the gas distribution plate 20 .

[0129] Optionally, the pipeline 40 further includes a connecting pipeline 402 , and the connecting pipeline 402 is connected between the other end of the second ejector 401 (that is, the inlet of the second ejector 401 ) and the outlet of the premixing chamber 50 .

[0130] In the disclosed embodiment, the connecting pipe 402 is connected between the outlet of the premixing chamber 50 and the inlet of the second ejector 401, and can guide the gas in the premixing chamber 50 to the second ejector 401. Moreover, the connecting pipe 402 can increase the distance between the gas distribution plate 20 and the premixing chamber 50, and reduce the heat transfer between the gas distribution plate 20 and the premixing chamber 50.

[0131] Optionally, the connecting pipe 402 is inserted into the second ejector 401 to achieve the connection between the connecting pipe 402 and the second ejector 401. The upper end of the connecting pipe 402 is provided with an air hole 4021, and the air hole 4021 connects the outside and the inside of the connecting pipe 402. The second ejector 401 can eject the outside air through the air hole 4021 into the connecting pipe 402, and then into the second ejector 401, so as to achieve the secondary ejection.

[0132] Optionally, the premixing chamber 50 includes a body 501 and a cover 502, wherein the body 501 encloses a premixing chamber 50 having an opening; the cover 502 is movably disposed at the opening of the premixing chamber 50, and the cover 502 can adjust the volume of the premixing chamber 50.

[0133] In the embodiment of the present disclosure, the volume of the premixing chamber 50 is variable, so that the volume of the premixing chamber 50 can be adjusted according to the type of gas or usage requirements, thereby improving the flexibility of use of the burner.

[0134] Optionally, the cover 502 is sealedly connected to the premixing chamber 50 .

[0135] Optionally, the cover 502 is connected to the wall of the premixing chamber 50 by threads to adjust the position of the cover 502. Specifically, the cover 502 is located at the upper part of the premixing chamber 50, which is convenient for adjusting the cover 502.

[0136] An embodiment of the present disclosure further provides a gas stove, which includes a burner according to any one of the above embodiments.

[0137] The gas stove provided in the embodiment of the present disclosure includes the burner of any one of the above embodiments, and thus has the beneficial effects of any one of the above burners, which will not be described in detail here.

[0138] Optionally, the gas stove includes a liquid tray 60, the lower end of the second ejector 401 (that is, the other end of the second ejector) is supported on the upper surface of the liquid tray 60, and the premixing chamber 50 is located below the liquid tray 60. In this way, the fire cover 10 and the gas distribution plate 20 are not in contact with the premixing chamber 50 below, and the heat generated by the high-temperature combustion of the fire cover 10 cannot be transferred to the premixing chamber 50 below through contact, thereby reducing heat conduction and improving the thermal efficiency of the burner.

[0139] The connecting pipe 402 also allows a distance between the premixing chamber 50 and the liquid receiving tray 60, thereby reducing heat conduction between the liquid receiving tray 60 and the premixing chamber 50. Moreover, the connecting pipe 402 allows the plurality of premixing chambers 50 arranged in the height direction to be supported and connected with the second ejector 401 above the liquid receiving tray 60.

[0140] Optionally, the lower end of the second ejector 401 is configured with a third step 4012, and the liquid receiving tray 60 is provided with a through hole 601. When the second ejector 401 is supported above the liquid receiving tray 60, the vertical wall of the third step 4012 extends into the through hole 601, and the horizontal wall of the third step 4012 abuts against the lower wall of the liquid receiving tray 60. In this way, the contact area between the second ejector 401 and the liquid receiving tray 60 can be increased, and the connection stability between the second ejector 401 and the liquid receiving tray 60 can be improved.

[0141] In this embodiment, by setting the third step portion 4012 and the through hole 601, the second ejector 401 fits tightly with the liquid receiving tray 60, preventing overflowing soup from flowing into the gas stove through the through hole 601 of the liquid receiving tray 60 during cooking, and enabling the gas distribution tray 20 and the fire cover 10 to be accurately positioned on the liquid receiving tray 60.

[0142] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A burner, characterized in that: include: The fire cover assembly comprises a fire cover and an air distribution plate, wherein the fire cover is located above the air distribution plate, and the fire cover and the air distribution plate enclose an air mixing chamber, wherein the air mixing chamber is provided with an air inlet hole; An ejector, connected directly or indirectly to the air inlet; There are one or more air inlet holes in an air mixing chamber. When there are multiple air inlet holes in an air mixing chamber, the multiple air inlet holes in the air mixing chamber are arranged in an array.

2. The burner according to claim 1, characterized in that The mixing chamber is annular, and there are multiple mixing chambers, which are spaced apart in sequence from the inside to the outside. The multiple air inlet holes of an air mixing chamber include a first air inlet hole, and the first air inlet holes of the multiple air mixing chambers are spaced apart in sequence along the radial direction of the air distribution disk.

3. The burner according to claim 1, characterized in that The gas mixing chamber is annular, and the number of the gas mixing chambers is multiple, and the multiple gas mixing chambers are arranged in sequence from the inside to the outside. The multiple gas mixing chambers include: The first gas mixing chamber is provided with a second gas inlet hole; The second gas mixing chamber is sleeved on the outside of the first gas mixing chamber and is provided with a third gas inlet hole; The number of the third air inlet holes is greater than or equal to the number of the second air inlet holes.

4. The burner according to claim 1, characterized in that The ejector comprises a first ejector, and the burner further comprises: A pipeline connected between the outlet of the first ejector and the air inlet; The number of pipelines is the same as the number of air inlet holes and corresponds one to one.

5. The burner according to claim 4, characterized in that Also includes: A premixing chamber connected between the inlet of the pipeline and the outlet of the first ejector; Among them, a plurality of air inlet holes of a mixing chamber are connected to a premixing chamber through a plurality of pipelines.

6. The burner according to claim 5, characterized in that The number of the premixing chambers is less than or equal to the number of the gas mixing chambers. When there are multiple premixing chambers, the multiple premixing chambers are sequentially spaced apart along the height direction.

7. The burner according to claim 5, characterized in that When there are multiple pipelines, the multiple pipelines are connected to the side wall of the premixing chamber, and the multiple pipelines corresponding to one mixing chamber are arranged in sequence along the circumference of the premixing chamber; and / or the first ejector is connected to the bottom of the premixing chamber.

8. The burner according to claim 5, characterized in that The first ejector at least partially extends in a horizontal direction; and / or, The premixing chamber is located below the gas distribution plate, and at least part of the pipeline extends in a vertical direction.

9. The burner according to any one of claims 4 to 8, characterized in that The pipeline includes: a second ejector, wherein the outlet of the second ejector is connected to the air inlet; A connecting pipeline is connected between the inlet of the second ejector and the outlet of the premixing chamber.

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

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