Combustor and stove

Abstract

The utility model provides a burner and a stove. The combustor comprises a fire distributor and an inner ring fire cover covering the fire distributor, a first gas mixing chamber and a second gas mixing chamber are defined between the inner ring fire cover and the fire distributor, and the first gas mixing chamber and the second gas mixing chamber are separated from each other. A first fire outlet hole communicated with the first gas mixing chamber and a second fire outlet hole communicated with the second gas mixing chamber are formed in the inner ring fire cover, and the second gas mixing chamber is eccentrically arranged relative to the inner ring fire cover. Thus, the problem that the first fire outlet hole and the second fire outlet hole compete with oxygen during combustion can be better avoided, sufficient combustion of gas at the first fire outlet hole and the second fire outlet hole is guaranteed, and the problems that smoke exceeds the standard, and heat efficiency is low are avoided.

Description

Technical Field

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

[0002] At present, household gas stoves generally have a burner, which usually includes a flame distributor, an outer ring flame cover, and an inner ring flame cover arranged in the center of the outer ring flame cover. The outer ring flame cover and the inner ring flame cover are buckled on the flame distributor, and the outer ring flame cover and the flame distributor are enclosed to form an outer ring air chamber, and the inner ring flame cover and the flame distributor are enclosed to form an inner ring air chamber. The gas mixture enters the inner ring air chamber and the outer ring air chamber, flows out from the fire outlet holes of the inner ring flame cover and the outer ring flame cover, and burns.

[0003] In some burners, a central flame structure that is smaller than the inner ring flame cover is provided. Specifically, the burner includes a central seat body and a central flame cover buckled on the central seat body. A central air chamber is formed between the central seat body and the central flame cover. The gas mixture enters the central air chamber, flows out from the flame outlet hole of the central flame cover and burns. The burner forms a three-ring flame from the inside to the outside, and the three-ring flame is concentrically arranged.

[0004] Both the center fire cover and the inner ring fire cover need to consume oxygen during combustion, which can easily lead to oxygen deficiency in the center fire cover, resulting in incomplete combustion, and further leading to problems such as excessive smoke gas and low thermal efficiency. Utility Model Content

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a burner is provided. The burner includes a ignition distributor and an inner ring fire cover buckled on the ignition distributor, the inner ring fire cover and the ignition distributor enclose a first gas mixing chamber and a second gas mixing chamber, the first gas mixing chamber and the second gas mixing chamber are separated from each other, the inner ring fire cover is provided with a first fire outlet hole connected to the first gas mixing chamber and a second fire outlet hole connected to the second gas mixing chamber, and the second gas mixing chamber is eccentrically arranged relative to the inner ring fire cover.

[0006] The burner provided by the utility model has a first gas mixing chamber and a second gas mixing chamber separated, which can better ensure the independence of the first fire outlet and the second fire outlet, and ensure the combustion effect. The second gas mixing chamber is eccentrically arranged relative to the inner ring fire cover, which can better avoid the problem of the first fire outlet and the second fire outlet competing for oxygen, ensure the full combustion of the gas at the first fire outlet and the second fire outlet, and avoid problems such as excessive smoke and low thermal efficiency.

[0007] Exemplarily, a first sub-chamber and a second sub-chamber separated from each other are formed in the inner ring fire cover, a third sub-chamber and a fourth sub-chamber are formed in the fire divider, the first sub-chamber and the third sub-chamber are matched to form a first gas mixing chamber, and the second sub-chamber and the fourth sub-chamber are matched to form a second gas mixing chamber. The inner ring fire cover is buckled on the fire divider to form the first gas mixing chamber and the second gas mixing chamber. The inner ring fire cover and the fire divider thus arranged have a simpler structure, and the production difficulty and cost are lower.

[0008] Exemplarily, the inner ring fire cover includes an inner ring body, a baffle body and a small fire cover, the baffle body is connected to the inner ring body, the small fire cover is arranged on the top of the inner ring body, the inner ring body and the baffle body enclose a first sub-cavity, and a second sub-cavity is formed between the inner ring body, the baffle body and the small fire cover. In this way, the first sub-cavity and the second sub-cavity are formed by the connection between the inner ring body, the baffle body and the small fire cover, the structural setting is simpler, and the production difficulty and cost are lower.

[0009] Exemplarily, the fire divider includes a middle body, a cavity opening toward the inner ring fire cover is formed on the middle body, the edge of the middle body has a first location and a second location, a connecting wall is connected between the first location and the second location, and the connecting wall divides the cavity into a third sub-chamber and a fourth sub-chamber. In this way, the overall structure of the fire divider can be simpler. The connecting wall is arranged in the middle body, the structure is more compact, and the space occupied is smaller.

[0010] Exemplarily, the burner further comprises a thermocouple, which is arranged on the periphery of the middle body and close to one side of the fourth sub-cavity. In this way, the thermocouple can better sense the fire from the second fire outlet, and the monitoring of the combustion condition of the burner is more accurate.

[0011] Exemplarily, a first ejection channel is provided at the bottom of the middle body, the first ejection channel is connected to the fourth sub-chamber, and the extension direction of the first ejection channel is the same as the extension direction of the fourth sub-chamber. In this way, the flow of the gas mixture in the first ejection channel and the fourth sub-chamber does not involve a change in direction, and the gas flows more smoothly.

[0012] Exemplarily, the burner includes a burner seat, a flame distributor is arranged on the burner seat, a first injection inlet connected to the first injection channel is arranged on the bottom wall of the middle body, and a first nozzle facing the first injection inlet is arranged on the burner seat. The gas is sprayed into the fourth sub-chamber, and the surrounding air is injected. The air and the gas are mixed to form a gas mixture, which flows out through the second fire outlet and burns. In this way, the gas mixture in the second gas mixing chamber flows more smoothly and the fire is more smooth.

[0013] Exemplarily, a second ejection channel is provided at the bottom of the middle body, the second ejection channel is connected to the first gas mixing chamber, and the extension direction of the second ejection channel satisfies the perpendicular condition to the extension direction of the first ejection channel. In this way, the second ejection channel is provided at the bottom of the ignition distributor and the extension direction satisfies the perpendicular condition to the extension direction of the first ejection channel, the extension distance of the second ejection channel can be longer, the gas and air in the second ejection channel can be mixed more fully, and the combustion effect is better.

[0014] For example, a second nozzle is provided on the burner base, the second injection channel has a second injection inlet, the second nozzle is arranged facing the second injection inlet, and the second nozzle is higher than the first nozzle. In this way, the gas in the second nozzle can be better injected into the second injection channel, the gas flows more smoothly, and the structural arrangement is more reasonable.

[0015] Exemplarily, the ignition distributor also includes an outer ring body arranged around the outer periphery of the middle body, an outer ring fire cover is arranged on the outer ring body, an outer ring gas mixing chamber is formed between the outer ring fire cover and the outer ring body, an outer ring ejection channel is arranged at the bottom of the outer ring body, the outer ring ejection channel is connected to the outer ring gas mixing chamber, and the extension direction of the outer ring ejection channel satisfies the perpendicular condition to the extension direction of the first ejection channel. In this way, the outer ring ejection channel is arranged at the bottom of the ignition distributor and the extension direction satisfies the perpendicular condition to the extension direction of the first ejection channel, the extension distance of the outer ring ejection channel can be longer, the gas and air in the outer ring ejection channel can be mixed more fully, and the combustion effect is better.

[0016] For example, an outer ring nozzle is arranged on the burner base, the outer ring injection channel has an outer ring injection inlet, the outer ring nozzle is arranged facing the outer ring injection inlet, and the outer ring nozzle is higher than the first nozzle. In this way, the gas outside the outer ring nozzle can be better sprayed into the outer ring injection channel, the gas flow is smoother, and the structural setting is more reasonable.

[0017] Exemplarily, the burner base is provided with a first channel and a second channel, the first channel is connected to the outer ring nozzle and the second nozzle, and the second channel is connected to the first nozzle. In this way, the first channel and the second channel are independent of each other, so as to avoid the air supply of the second gas mixing chamber being affected, and the second gas mixing chamber and the second fire outlet can be set better and more targeted to ensure the stability of the fire during the extreme low power combustion. The fire of the small fire cover can ensure the extreme low power of the burner, and the inner ring body and the outer ring fire cover can ensure the extreme high power of the burner. The second gas mixing chamber is independent of the first gas mixing chamber and the outer ring gas mixing chamber, and the first channel and the second channel are independent, so that the burner can achieve high efficiency and lower extreme low power at the same time. The overall power variation range of the burner is larger, and broadband adjustment is realized, which can better meet the different usage needs of users. The first channel is connected to the first gas mixing chamber and the outer ring gas mixing chamber, so that the flames of the inner ring body and the outer ring fire cover can be changed synchronously, and the flame temperature of the bottom of the pot is more uniform during combustion, which can avoid the excessive temperature of the center of the bottom of the pot, and the cooking effect is better.

[0018] Exemplarily, a first ejection channel is provided at the bottom of the middle body, the first ejection channel is connected to the fourth sub-chamber, and the extension direction of the first ejection channel and the extension direction of the fourth sub-chamber meet the vertical condition. In this way, the first ejection channel itself can have a certain barrier to overflowing liquid, oil stains, etc., so that overflowing liquid, oil stains, etc. are less likely to contact the first ejection nozzle corresponding to the first ejection channel, thereby ensuring the stability of the operation of the first ejection channel. Moreover, in this embodiment, the first ejection nozzle is located in the lateral direction of the first ejection channel, which can further avoid contamination by overflowing liquid, oil stains, etc. above.

[0019] According to another aspect of the utility model, a stove is provided, which comprises an air intake assembly and any one of the above-mentioned burners, wherein the air intake assembly comprises a first air intake pipe and a second air intake pipe, wherein the first air intake pipe is connected to the second air mixing chamber, and the second air intake pipe is connected to the first air mixing chamber.

[0020] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section is not intended to limit the key features and essential technical features of the technical solution claimed for protection, nor is it intended to determine the scope of protection of the technical solution claimed for protection.

[0021] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0023] Figure 1 is a perspective view of a burner according to an exemplary embodiment of the present utility model;

[0024] Figure 2a is an exploded view of a burner according to an exemplary embodiment of the present utility model;

[0025] Figure 2b is an exploded view of a burner according to an exemplary embodiment of the present utility model;

[0026] Figure 3a is a cross-sectional view of a burner according to an exemplary embodiment of the present utility model;

[0027] Figure 3b is a cross-sectional view of a burner according to an exemplary embodiment of the present utility model;

[0028] Figure 4 is a cross-sectional view of a burner according to an exemplary embodiment of the present utility model;

[0029] Figure 5 is a cross-sectional view of a burner according to an exemplary embodiment of the present invention, in which the flow of gas is schematically shown, the solid arrows represent the gas, the hollow arrows represent the air, and the shaded arrows represent the gas mixture;

[0030] Figure 6a A three-dimensional diagram of a burner base according to an exemplary embodiment of the present invention;

[0031] Figure 6b A three-dimensional diagram of a burner base according to an exemplary embodiment of the present invention;

[0032] Figure 7a is a cross-sectional view of a burner base according to an exemplary embodiment of the present utility model;

[0033] Figure 7b is a cross-sectional view of a burner base according to an exemplary embodiment of the present utility model;

[0034] Figure 8 A perspective view of a fire distributor according to an exemplary embodiment of the present utility model;

[0035] Figure 9a A bottom view of a fire distributor according to an exemplary embodiment of the present utility model;

[0036] Figure 9b A bottom view of a fire distributor according to an exemplary embodiment of the present utility model;

[0037] Fig.10 A top view of a fire distributor according to an exemplary embodiment of the present utility model;

[0038] Fig.11a A cross-sectional view of a fire distributor according to an exemplary embodiment of the present utility model;

[0039] Fig.11b A cross-sectional view of a fire distributor according to an exemplary embodiment of the present utility model;

[0040] Figure 12-13 A perspective view of an outer ring fire cover according to an exemplary embodiment of the present utility model;

[0041] Fig.14 A perspective view of an inner ring fire cover according to an exemplary embodiment of the present utility model;

[0042] Fig.15 is a cross-sectional view of an inner ring fire cover according to an exemplary embodiment of the utility model;

[0043] Fig.16 A perspective view of a limit fire cover according to an exemplary embodiment of the present utility model;

[0044] Fig.17a A schematic diagram of gas flow of a cooker according to an exemplary embodiment of the present utility model; and

[0045] Fig.17b The figure is a schematic diagram of gas flow of a cooker according to an exemplary embodiment of the present utility model.

[0046] The above drawings include the following reference numerals:

[0047] 10. Burner; 101. First gas mixing chamber; 102. Second gas mixing chamber; 103. Outer ring gas mixing chamber; 110. Inner ring fire cover; 1110. Inner ring body; 1111. First sub-chamber; 1112. First fire outlet; 1113. Ignition cap brim; 1120. Small fire cover; 1121. Second sub-chamber; 1122. Second fire outlet; 1123. Protruding part; 1124. Embedded part; 1130, enclosure; 120, ignition distributor; 1210, middle body; 1211, third chamber; 1212, fourth chamber; 1213, first place; 1214, second place; 1215, connecting wall; 1216, first injection channel; 1216a, injection section; 1216b, connecting section; 1217, first injection inlet; 1220, outer ring body; 1230, first Two injection channels; 1231, second injection inlet; 1240, outer ring injection channel; 1241, outer ring injection inlet; 1250, ignition needle guide hole; 1260, thermocouple guide hole; 130, burner seat; 1310, first nozzle; 1320, second nozzle; 1330, outer ring nozzle; 1340, first mounting boss; 1350, second mounting boss; 1360, outer ring mounting boss; 1370, first channel; 1380, second channel; 1391, ignition needle mounting boss; 1392, thermocouple mounting boss; 140, outer ring fire cover; 1410, fire transfer part; 1411, fire transfer groove; 1420, outer ring fire outlet; 1510, thermocouple; 1520, ignition needle; 20, air intake assembly; 210, first air intake pipe; 220, second air intake pipe. DETAILED DESCRIPTION

[0048] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0049] In order to thoroughly understand the implementation of the utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred implementation of the utility model is described in detail below, but in addition to these detailed descriptions, the utility model can also have other implementations.

[0050] A burner 10 is provided in an embodiment of the utility model. With reference to 2a, 2b, 3a and 3b, the burner 10 may include an ignition divider 120 and an inner ring fire cover 110 buckled on the ignition divider 120. The inner ring fire cover 110 and the ignition divider 120 may enclose a first gas mixing chamber 101 and a second gas mixing chamber 102. The first gas mixing chamber 101 and the second gas mixing chamber 102 are separated from each other. The positional relationship between the first gas mixing chamber 101 and the second gas mixing chamber 102 can be set according to the use requirements, and the two can be spaced a certain distance from each other, or they can be arranged adjacent to each other. The first gas mixing chamber 101 and the second gas mixing chamber 102 are independent of each other and are not affected by each other. A first fire outlet 1112 and a second fire outlet 1122 may be provided on the inner ring fire cover 110. The first fire outlet 1112 may be connected to the first gas mixing chamber 101, and the second fire outlet 1122 may be a second fire outlet 1122 connected to the second gas mixing chamber 102. The first fire hole 1112 can connect the first gas mixing chamber 101 with the outside. The second fire hole 1122 can connect the second gas mixing chamber 102 with the outside. The first gas mixing chamber 101 and the second gas mixing chamber 102 can be connected to the gas mixture respectively. During use, the gas mixture flowing into the first gas mixing chamber 101 flows out from the first fire hole 1112 and burns to form a first fire. The gas mixture flowing into the second gas mixing chamber 102 flows out from the second fire hole 1122 and burns to form a second fire. The first gas mixing chamber 101 and the second gas mixing chamber 102 are separated, and the two do not affect each other. In other words, different power requirements of the burner 10 can be achieved by reasonably setting the first gas mixing chamber 101 and the second gas mixing chamber 102 (such as the size of the gas mixing chamber, the number and size of the fire holes, etc.). The second fire can be used to meet the extreme low power, and the first fire can be used to meet the demand for relatively large power. The two are independent and the combustion effects do not affect each other, which can better ensure the stability of combustion under two different powers.

[0051] The second gas mixing chamber 102 is eccentrically arranged relative to the inner ring fire cover 110. It can be understood that the inner ring fire cover 110 has a central axis, and the second gas mixing chamber 102 also has a central axis. The two central axes are staggered from each other, that is, the second gas mixing chamber 102 has a certain offset relative to the center of the inner ring fire cover 110. In this way, the second fire outlet 1122 connected to the second gas mixing chamber 102 can have a certain offset relative to the overall fire outlet of the inner ring fire cover 110. Figure 3aTaking the illustrated embodiment as an example, the combustion and ignition point of the second ignition hole 1122 is located slightly to the right of the center of the inner ring fire cover 110. Preferably, the second ignition hole 1122 is located at the edge of the inner ring fire cover 110. When the first gas mixing chamber 101 and the second gas mixing chamber 102 are both filled with gas mixture, the gas mixture in the first gas mixing chamber 101 flows out from the first ignition hole 1112 and burns, and the gas mixture in the second gas mixing chamber 102 flows out from the second ignition hole 1122 and burns, and the combustion at both places consumes oxygen.

[0052] In the prior art, the central fire structure is located at the center, and its outer periphery is the inner ring fire cover. The fire holes on the inner ring fire cover burn and consume the surrounding oxygen. The central fire structure at the center also needs to consume oxygen for combustion. Oxygen can only flow from the outer circle to the center. Cookware is placed above the burner, which makes the oxygen that can pass through very limited. Moreover, when the oxygen that can be introduced is already relatively limited, part of the oxygen will be consumed by the combustion of the inner ring fire cover of the outer circle when passing through. This makes it easy for the central fire structure to be short of oxygen, resulting in problems such as incomplete combustion. Compared with the central fire structure, in the present application, the eccentric setting of the second mixing chamber 102 can better reduce the occurrence of the problem of oxygen grabbing by the first fire hole 1112 and the second fire hole 1122.

[0053] The burner 10 provided by the utility model has a first gas mixing chamber 101 and a second gas mixing chamber 102 separated, which can better ensure the independence of the first fire outlet 1112 and the second fire outlet 1122, and ensure the combustion effect. The second gas mixing chamber 102 is eccentrically arranged relative to the inner ring fire cover 110, which can better avoid the problem of the first fire outlet 1112 and the second fire outlet 1122 competing for oxygen during combustion, ensure the full combustion of the gas at the first fire outlet 1112 and the second fire outlet 1122, and avoid problems such as excessive smoke and low thermal efficiency.

[0054] For example, in conjunction with reference Figure 3a , 3band 4, a first sub-chamber 1111 and a second sub-chamber 1121 separated from each other may be formed in the inner ring fire cover 110, and a third sub-chamber 1211 and a fourth sub-chamber 1212 may be formed in the ignition divider 120, the first sub-chamber 1111 and the third sub-chamber 1211 are matched to form the first gas mixing chamber 101, and the second sub-chamber 1121 and the fourth sub-chamber 1212 are matched to form the second gas mixing chamber 102. The inner ring fire cover 110 is buckled on the ignition divider 120 to form the first gas mixing chamber 101 and the second gas mixing chamber 102. The structural setting of the inner ring fire cover 110 and the ignition divider 120 arranged in this way is simpler, and the production difficulty and cost are lower. Among them, the inner ring fire cover 110 can form the first sub-chamber 1111 and the second sub-chamber 1121 in any way. The ignition divider 120 can form the third sub-chamber 1211 and the fourth sub-chamber 1212 in any way. Preferably, the second sub-chamber 1121 and the fourth sub-chamber 1212 are arranged in the extension direction (i.e. Figure 3a and Figure 3b The cross-sectional area in the XX direction is the same. It should be noted that Figure 3b The cross-section in the figure is a plane passing through the center line of the second mixing chamber 102, so from the perspective of this figure, the second mixing chamber 102 seems to be non-eccentric. It can be understood that this is only caused by the different cross-sectional positions, and its structure does not conflict with the eccentric setting of the second mixing chamber 102 relative to the inner ring fire cover 110.

[0055] For example, in conjunction with reference Figure 3a , 8 , 14 and 15, the inner ring fire cover 110 may include an inner ring body 1110, a baffle 1130 and a small fire cover 1120. The baffle 1130 may be connected to the inner ring body 1110, the small fire cover 1120 may be arranged on the top of the inner ring body 1110, the inner ring body 1110 and the baffle 1130 may be enclosed to form a first sub-chamber 1111, and a second sub-chamber 1121 may be formed between the inner ring body 1110, the baffle 1130 and the small fire cover 1120. The second fire outlet 1122 may be arranged on the small fire cover 1120. The first fire outlet 1112 may be arranged on the inner ring body 1110. In this way, the first sub-chamber 1111 and the second sub-chamber 1121 are formed by the connection between the inner ring body 1110, the baffle 1130 and the small fire cover 1120, and the structural arrangement is simpler, and the production difficulty and cost are lower. The enclosure 1130 is connected to the inner ring body 1110, which makes fuller use of the structure of the inner ring body 1110 to form the first sub-chamber 1111 and the second sub-chamber 1121, and the overall structure of the inner ring fire cover 110 is more compact.

[0056] For example, in conjunction with reference Figure 3a , 14-16, the small fire cover 1120 may include a connected embedded portion 1124 and a protruding portion 1123. The protruding portion 1123 may protrude from the inner ring body 1110, and a second fire hole 1122 may be provided on the protruding portion 1123. Specifically, the second fire holes 1122 may be multiple and spaced apart on the periphery of the protruding portion. Along the axial direction of the small fire cover 1120, the second fire holes 1122 may be in one row or in multiple rows. In this way, the fire output of the second fire hole 1122 is prevented from being affected by the inner ring body 1110, and the fire output effect of the small fire cover 1120 is ensured.

[0057] For example, in conjunction with reference Figure 2a , 2b , 8 and 10, the ignition divider 120 may include a middle body 1210. A cavity opening toward the inner ring fire cover 110 is formed on the middle body 1210. The edge of the middle body 1210 has a first location 1213 and a second location 1214, and a connecting wall 1215 may be connected between the first location 1213 and the second location 1214, and the connecting wall 1215 may separate the cavity into a third sub-chamber 1211 and a fourth sub-chamber 1212. Specifically, the middle body 1210 has an annular outer wall, and the cavity is formed between the annular outer walls. The connecting wall 1215 is connected to the annular outer wall, and a third sub-chamber 1211 is formed between the first side of the connecting wall 1215 and the annular outer wall, and a fourth sub-chamber 1212 is formed between the second side of the connecting wall 1215 and the annular outer wall. In this way, the overall structure of the ignition divider 120 can be simpler. The connecting wall 1215 is arranged in the middle body 1210, and the structural arrangement is more compact, and the space occupied is smaller. The middle body 1210 may be substantially cylindrical. The first location 1213 and the second location 1214 may be arranged at any location according to the use requirements. It is understood that the arrangement of the first location 1213 and the second location 1214 may determine the location and size of the fourth sub-chamber 1212.

[0058] For example, in conjunction with reference Figure 1-3a The burner 10 may further include a thermocouple 1510, which may be disposed on the outer periphery of the middle body 1210 and close to one side of the fourth sub-cavity 1212. In this way, the thermocouple 1510 may better sense the ignition of the second ignition hole 1122, and monitor the combustion condition of the burner 10 more accurately. Exemplarily, the second ignition hole 1122 may be disposed on the side wall of the middle body 1210 in contact with the fourth sub-cavity 1212.

[0059] For example, refer to Figure 3aThe bottom of the middle body 1210 may be provided with a first ejection channel 1216, the first ejection channel 1216 is connected to the fourth sub-chamber 1212, and the extension direction of the first ejection channel 1216 may be the same as the extension direction of the fourth sub-chamber 1212. Specifically, the first ejection channel 1216 extends along the XX direction, and the fourth sub-chamber 1212 extends along the XX direction. The gas mixture flows through the first ejection channel 1216, the fourth sub-chamber 1212, and the second sub-chamber 1121 in sequence along the XX direction. In this way, the flow of the gas mixture in the first ejection channel 1216 and the fourth sub-chamber 1212 does not involve a change in direction, and the gas flows more smoothly.

[0060] Exemplarily, the burner 10 may further include an ignition needle 1520, which may be disposed on the periphery of the middle body 1210. The ignition needle 1520 may be disposed on both sides of the middle body 1210 opposite to the thermocouple 1510. Further, an ignition needle guide hole 1250 and a thermocouple guide hole 1260 may be disposed on the ignition distributor 120. The ignition needle 1520 passes through the ignition needle guide hole 1250, and the thermocouple 1510 passes through the thermocouple guide hole 1260. An ignition cap brim 1113 may be disposed on the inner ring ignition cover 110, and the projection of the ignition cap brim 1113 on the horizontal plane may cover the ignition needle 1520. Exemplarily, an ignition needle mounting boss 1391 and a thermocouple mounting boss 1392 may be provided on the burner head seat 130 , the ignition needle 1520 is mounted on the ignition needle mounting boss 1391 , and the thermocouple 1510 is mounted on the thermocouple mounting boss 1392 .

[0061] For example, continue to combine with reference Figure 1-3b , the burner 10 may include a burner base 130. The ignition distributor 120 may be disposed on the burner base 130, a first injection inlet 1217 communicating with the first injection channel 1216 may be disposed on the bottom wall of the middle body 1210, and a first nozzle 1310 facing the first injection inlet 1217 may be disposed on the burner base 130. Specifically, a first mounting boss 1340 may be disposed on the burner base 130, and the first nozzle 1310 may be mounted on the first mounting boss 1340. The gas outlet direction of the first nozzle 1310 may be upward and aligned with the first injection inlet 1217 (such as Figure 3a Alternatively, the gas outlet direction of the first nozzle 1310 may be horizontal and aligned with the first injection inlet 1217 (eg, Figure 3b ). The first nozzle 1310 is spaced apart from the first injection inlet 1217. The gas is injected into the fourth sub-chamber 1212, injecting the surrounding air, and the air and gas are mixed to form a gas mixture, which flows out through the second ignition hole 1122 and burns. In this way, the gas mixture in the second gas mixing chamber 102 flows more smoothly and ignites more smoothly.

[0062] For example, in conjunction with reference Figure 2a , 3a and 4. A second ejection channel 1230 may be provided at the bottom of the middle body 1210, and the second ejection channel 1230 is connected to the first gas mixing chamber 101. The extension direction of the second ejection channel 1230 and the extension direction of the first ejection channel 1216 may meet the vertical condition. Specifically, the second ejection channel 1230 extends along the direction YY, and the fourth sub-chamber 1212 extends along the direction XX. The gas is sprayed into the second ejection channel 1230, ejecting the surrounding air, and the air and the gas are mixed. In this way, the second ejection channel 1230 is provided at the bottom of the igniter 120 and the extension direction meets the vertical condition with the extension direction of the first ejection channel 1216, the extension distance of the second ejection channel 1230 can be longer, the gas and air in the second ejection channel 1230 can be mixed more fully, and the combustion effect is better.

[0063] For example, continue to combine with reference Figure 2a , 3a and 4. A second nozzle 1320 may be provided on the burner seat 130, the second injection channel 1230 may have a second injection inlet 1231, the second nozzle 1320 may be arranged facing the second injection inlet 1231, and the second nozzle 1320 may be higher than the first nozzle 1310. The gas is sprayed into the second injection inlet 1231 along the direction YY. A second mounting boss 1350 may be provided on the burner seat 130, and the second mounting boss 1350 may extend upward by a certain distance to be opposite to the second injection inlet 1231. In this way, the gas in the second nozzle 1320 can be better sprayed into the second injection channel 1230, the gas flow is smoother, and the structural setting is more reasonable. In some embodiments, the second nozzle 1320 may be at the same height as the first nozzle 1310 (such as Figure 2b and 6b ).

[0064] Exemplarily, with reference to FIGS. 2, 3a, 4 and 5, the ignition distributor 120 may further include an outer ring body 1220 arranged around the periphery of the middle body 1210. An outer ring fire cover 140 may be provided on the outer ring body 1220, and the outer ring fire cover 140 and the outer ring body 1220 enclose an outer ring gas mixing chamber 103. An outer ring introduction channel 1240 may be provided at the bottom of the outer ring body 1220, and the outer ring introduction channel 1240 is connected to the outer ring gas mixing chamber 103, and the extension direction of the outer ring introduction channel 1240 meets the vertical condition with the extension direction of the first introduction channel 1216. The outer ring introduction channel 1240 extends along the direction YY, and the fourth sub-chamber 1212 extends along the direction XX. The extension direction of the outer ring introduction channel 1240 may be in the same plane as the extension direction of the second introduction channel 1230. The gas is sprayed into the outer ring introduction channel 1240, and the surrounding air is introduced, and the air and the gas are mixed. In this way, the outer ring injection channel 1240 is arranged at the bottom of the ignition distributor 120 and the extension direction satisfies the vertical condition with the extension direction of the first injection channel 1216. The extension distance of the outer ring injection channel 1240 can be longer, and the gas and air in the outer ring injection channel 1240 can be mixed more fully, and the combustion effect is better. Fig.12 and 13 The outer ring fire cover 140 may also be provided with a fire transfer portion 1410. The fire transfer portion 1410 may be provided with a fire transfer groove 1411 that penetrates along the radial direction of the outer ring fire cover 140.

[0065] For example, in conjunction with reference Figure 3a and 5 , an outer ring nozzle 1330 may be provided on the burner head seat 130. The outer ring injection channel 1240 has an outer ring injection inlet 1241, and the outer ring nozzle 1330 is arranged facing the outer ring injection inlet 1241, and the outer ring nozzle 1330 may be higher than the first nozzle 1310. The gas outlet direction of the outer ring nozzle 1330 is the same as the extension direction of the outer ring injection channel 1240. The gas is sprayed into the outer ring injection inlet 1241 along the direction YY. An outer ring mounting boss 1360 may be provided on the burner head seat 130, and the outer ring mounting boss 1360 extends upward by a certain distance to be opposite to the outer ring injection inlet 1241. In this way, the gas outside the outer ring nozzle 1330 can be better sprayed into the outer ring injection channel 1240, the gas flow is smoother, and the structural setting is more reasonable. For example, two outer ring injection channels 1240 may be provided, and two outer ring nozzles 1330 may correspond one to one with the outer ring injection inlets 1241 of the two outer ring injection channels 1240 to ensure the combustion effect of the outer ring fire cover 140. In some embodiments, the outer ring nozzle may be at the same height as the first nozzle (e.g. Figure 2b and 6b ).

[0066] For example, in conjunction with reference Figure 3a ,3b , 4, 5, 7a and 7b, a first channel 1370 and a second channel 1380 may be provided on the burner base 130. The first channel 1370 may be communicated with the outer ring nozzle 1330 and the second nozzle 1320, and the second channel 1380 may be communicated with the first nozzle 1310. The first channel 1370 supplies air to the first gas mixing chamber 101 and the outer ring gas mixing chamber 103, and the second channel 1380 supplies air to the second gas mixing chamber 102. Among them, the first channel 1370 may supply air to the first gas mixing chamber 101, or to the outer ring gas mixing chamber 103, or to the first gas mixing chamber 101 and the outer ring gas mixing chamber 103 at the same time according to the use requirements. In this way, the first channel 1370 and the second channel 1380 are independent of each other, so as to avoid affecting the gas supply of the second gas mixing chamber 102, and the second gas mixing chamber 102 and the second fire outlet 1122 may be better and more targetedly set to ensure the stability of the fire during the extreme low-power combustion. The fire of the small fire cover 1120 can ensure the extreme low power of the burner 10, and the inner ring body 1110 and the outer ring fire cover 140 can ensure the extreme high power of the burner 10. The second gas mixing chamber 102 is independent of the first gas mixing chamber 101 and the outer ring gas mixing chamber 103, and the first channel 1370 and the second channel 1380 are independent, so that the burner 10 can achieve high efficiency and a smaller extreme low power at the same time. The overall power variation range of the burner 10 is larger, and broadband regulation is achieved, which can better meet the different usage requirements of users. The first channel 1370 is connected with the first gas mixing chamber 101 and the outer ring gas mixing chamber 103, so that the flames of the inner ring body 1110 and the outer ring fire cover 140 can be changed synchronously, and the flame temperature of the bottom of the pot is more uniform during combustion, which can avoid the excessive temperature of the center of the bottom of the pot, and the cooking effect is better. In an embodiment not shown, three air inlet channels can be provided, and the three channels are respectively connected with the first nozzle, the outer ring nozzle and the second nozzle.

[0067] For example, in conjunction with reference Figure 2b and 3b. A first ejection channel 1216 may be provided at the bottom of the middle body 1210, and the first ejection channel 1216 may be connected to the fourth sub-chamber 1212, and the extension direction of the first ejection channel 1216 and the extension direction of the fourth sub-chamber 1212 meet the vertical condition. In this way, the first ejection channel 1216 itself can have a certain barrier to overflowing liquid, oil stains, etc., making it less likely for overflowing liquid, oil stains, etc. to contact the first ejection nozzle 1217 corresponding to the first ejection channel, thereby ensuring the working stability of the first ejection channel 1216. Moreover, in this embodiment, the first ejection nozzle 1217 is located in the lateral direction of the first ejection channel 1216, which can further avoid contamination by overflowing liquid, oil stains, etc. from above. Exemplarily, the first ejection channel 1216 may include an ejection section 1216a and a connecting section 1216b, the connecting section 1216b may be connected between the fourth sub-chamber 1212 and the ejection section 1216a, and the cross-sectional area of ​​the ejection section 1216a gradually decreases in a direction away from the first nozzle 1310. In this way, the gas entering the ejection section 1216a can better eject the surrounding air, so that the air ratio in the gas mixture in the fourth sub-chamber 1212 is higher, thereby ensuring combustion efficiency.

[0068] According to another aspect of the present invention, a stove is also provided. Fig.17a and 17b , the stove may include an air intake assembly 20 and any one of the above-mentioned burners 10. The air intake assembly 20 may include a first air intake pipe 210 and a second air intake pipe 220. The first air intake pipe 210 is connected to the second air mixing chamber 102, and the second air intake pipe 220 is connected to the first air mixing chamber 101. Since the burner 10 adopts the technical solution of any of the above-mentioned embodiments, the stove at least has the beneficial effects brought by the technical solution of the above-mentioned embodiments, which are not repeated here one by one. In an embodiment in which an outer ring air mixing chamber 103 is provided, the second air intake pipe 220 may also be connected to the outer ring air mixing chamber 103. Exemplarily, the second air intake pipe 220 may be connected to the first channel 1370, and the first air intake pipe 210 is connected to the second channel 1380. Part of the gas in the air intake assembly 20 enters the second air intake pipe 220, and the other part enters the first air intake pipe 210. Specifically, in combination with reference Figure 3a , 3b, 4, 5, 17a and 17b, the flow of gas includes the following three paths, path one: the second air inlet pipe 220, the first channel 1370, the outer ring nozzle 1330, the outer ring injection channel 1240, the outer ring mixing chamber 103, and flows out from the outer ring fire hole 1420 and burns; path two: the second air inlet pipe 220, the first channel 1370, the second nozzle 1320, the second injection channel 1230, the first mixing chamber 101, and flows out from the first fire hole 1112 and burns; path three: the first air inlet pipe 210, the second channel 1380, the first nozzle 1310, the first injection channel 1216, the second mixing chamber 102, and flows out from the second fire hole 1122 and burns.

[0069] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0070] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0072] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application 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 numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0073] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A burner, characterized in that: It includes an ignition divider and an inner ring fire cover buckled on the ignition divider, the inner ring fire cover and the ignition divider enclose a first air mixing chamber and a second air mixing chamber, the first air mixing chamber and the second air mixing chamber are separated from each other, the inner ring fire cover is provided with a first fire outlet hole connected to the first air mixing chamber and a second fire outlet hole connected to the second air mixing chamber, the second air mixing chamber is eccentrically arranged relative to the inner ring fire cover.

2. The burner according to claim 1, characterized in that A first sub-chamber and a second sub-chamber separated from each other are formed in the inner ring fire cover, a third sub-chamber and a fourth sub-chamber are formed in the ignition divider, the first sub-chamber and the third sub-chamber are combined to form the first gas mixing chamber, and the second sub-chamber and the fourth sub-chamber are combined to form the second gas mixing chamber.

3. The burner according to claim 2, characterized in that The inner ring fire cover includes an inner ring body, a surrounding body and a small fire cover, the surrounding body is connected to the inner ring body, the small fire cover is arranged on the top of the inner ring body, the inner ring body and the surrounding body are combined to form the first sub-chamber, and the second sub-chamber is formed between the inner ring body, the surrounding body and the small fire cover.

4. The burner according to claim 2, characterized in that: The fire divider includes a middle body, on which is formed a cavity opening toward the inner ring fire cover, the edge of the middle body has a first location and a second location, a connecting wall is connected between the first location and the second location, and the connecting wall divides the cavity into the third sub-chamber and the fourth sub-chamber.

5. The burner according to claim 4, characterized in that The burner further comprises a thermocouple, and the thermocouple is arranged on the outer periphery of the middle body and close to one side of the fourth sub-chamber.

6. The burner according to claim 4, characterized in that A first ejection channel is provided at the bottom of the middle body, the first ejection channel is communicated with the fourth sub-chamber, and an extension direction of the first ejection channel is the same as an extension direction of the fourth sub-chamber.

7. The burner according to claim 6, characterized in that The burner comprises a burner seat, the flame distributor is arranged on the burner seat, a first injection inlet connected with the first injection channel is arranged on the bottom wall of the middle body, and a first nozzle facing the first injection inlet is arranged on the burner seat.

8. The burner according to claim 7, characterized in that A second ejection channel is provided at the bottom of the middle body, the second ejection channel is communicated with the first gas mixing chamber, and an extension direction of the second ejection channel satisfies a vertical condition with an extension direction of the first ejection channel.

9. The burner according to claim 8, characterized in that The burner base is provided with a second nozzle, the second injection channel has a second injection inlet, the second nozzle is arranged facing the second injection inlet, and the second nozzle is higher than the first nozzle.

10. The burner according to claim 9, characterized in that The fire distributor also includes an outer ring body arranged around the outer periphery of the middle body, an outer ring fire cover is arranged on the outer ring body, an outer ring gas mixing chamber is formed between the outer ring fire cover and the outer ring body, an outer ring ejection channel is arranged at the bottom of the outer ring body, and the outer ring ejection channel is communicated with the outer ring gas mixing chamber. An extension direction of the outer ring ejection channel and an extension direction of the first ejection channel meet a perpendicular condition.

11. The burner according to claim 10, characterized in that An outer ring nozzle is arranged on the furnace head seat, the outer ring injection channel has an outer ring injection inlet, the outer ring nozzle is arranged facing the outer ring injection inlet, and the outer ring nozzle is higher than the first nozzle.

12. The burner according to claim 11, characterized in that The burner base is provided with a first channel and a second channel, the first channel is communicated with the outer ring nozzle and the second nozzle, and the second channel is communicated with the first nozzle.

13. The burner according to claim 4, characterized in that A first ejection channel is provided at the bottom of the middle body, the first ejection channel is communicated with the fourth sub-chamber, and an extension direction of the first ejection channel and an extension direction of the fourth sub-chamber meet a vertical condition.

14. A cooking appliance, characterized in that: It comprises an air intake assembly and a burner as claimed in any one of claims 1 to 13, wherein the air intake assembly comprises a first air intake pipe and a second air intake pipe, the first air intake pipe is connected to the second air mixing chamber, and the second air intake pipe is connected to the first air mixing chamber.

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