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, the inner ring fire cover and the fire distributor are enclosed to form a first gas mixing chamber, a second gas mixing chamber and a gas supplementing chamber for introducing air, and the first gas mixing chamber, the second gas mixing chamber and the gas supplementing chamber are separated from one another; the inner ring fire cover is provided with a first gas outlet and a second gas outlet, the first gas mixing chamber is communicated with the outside through the first gas outlet, the second gas mixing chamber is communicated with the outside through the second gas outlet, the inner ring fire cover is provided with a gas supplementing channel for supplementing air to the second gas outlet, and the gas supplementing channel is communicated with the gas supplementing chamber. Therefore, gas can be supplemented to the second gas outlet through the gas supplementing channel, sufficient oxygen can participate in combustion at the second gas outlet, combustion of gas mixture is more sufficient, generation of excessive smoke is avoided, and heat efficiency is improved.

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 an outer ring fire cover and an inner ring fire cover located in the center of the outer ring fire cover. The fire from the outer ring fire cover constitutes an outer ring flame, and the fire from the inner ring fire cover constitutes an inner ring flame. Compared with the outer ring flame, the inner ring flame is closer to the bottom center of the pot and has less power.

[0003] Some burners are also equipped with a limit flame structure. The limit flame structure is usually located at the center of the inner ring flame cover, forming a three-ring flame from the inside to the outside, namely the limit flame, the inner ring flame and the outer ring flame. The limit flame is independent of the inner ring flame, and it can provide a smaller flame power than the inner ring flame to meet the user's more diverse cooking needs.

[0004] However, both the extreme fire structure and the inner ring fire cover need to consume oxygen during ignition and combustion, which can easily lead to oxygen deficiency in the extreme fire structure, resulting in incomplete combustion, and further causing problems such as excessive smoke 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 air mixing chamber, a second air mixing chamber and an air supply chamber for introducing air, the first air mixing chamber, the second air mixing chamber and the air supply chamber are all separated from each other; the inner ring fire cover is provided with a first air outlet and a second air outlet, the first air mixing chamber is connected to the outside through the first air outlet, the second air mixing chamber is connected to the outside through the second air outlet, and the inner ring fire cover is provided with an air supply channel for supplying air to the second air outlet, and the air supply channel is connected to the air supply chamber.

[0006] The burner provided by the utility model forms a first air mixing chamber, a second air mixing chamber and an air supply chamber between the ignition distributor and the inner ring fire cover. The first air mixing chamber and the second air mixing chamber are independent of each other, that is, the first fire outlet and the second fire outlet are completely independent, and the power variation range of the burner is larger, which can better meet the different usage requirements of users. The air introduced into the air supply chamber can be supplied to the second air outlet through the air supply channel, so that the second air outlet can have sufficient oxygen to participate in the combustion, and the combustion of the gas mixture is more complete, avoiding the generation of excessive smoke and improving the thermal efficiency.

[0007] Exemplarily, the fire divider includes an inner ring fire divider side wall and an inner ring fire divider bottom wall connected to the bottom of the inner ring fire divider side wall, a first separator is connected to the inner ring fire divider bottom wall, the inner ring fire divider side wall, the first separator and part of the inner ring fire divider bottom wall enclose a first main sub-cavity, a second main sub-cavity is formed on the inner ring fire cover, and the first main sub-cavity and the second main sub-cavity are matched to form a first gas mixing chamber. In this way, by setting the first separator, a first main sub-cavity is formed in the fire divider, which is matched with the second main sub-cavity in the inner ring fire cover to form a first gas mixing chamber, and the overall structure of the burner is simpler and the space utilization is more reasonable.

[0008] Exemplarily, a second separator is connected to the bottom wall of the inner ring fire divider, and the second separator, the first separator and part of the bottom wall of the inner ring fire divider enclose a first sub-cavity, and a second sub-cavity is formed on the inner ring fire cover, and the first sub-cavity and the second sub-cavity are combined to form a second gas mixing chamber. In this way, the first sub-cavity and the first main sub-cavity are separated in the fire divider by the first separator and the second separator, and the internal structure of the fire divider is more fully utilized. There is no need to set a separate structure on the outside, and the production cost is lower.

[0009] Exemplarily, the second partition and part of the inner ring fire dividing bottom wall enclose a first air replenishment sub-cavity, the inner ring fire cover is formed with a second air replenishment sub-cavity, and the first air replenishment sub-cavity and the second air replenishment sub-cavity are matched to form an air replenishment chamber. In this way, the first air replenishment sub-cavity is formed by the second partition and the inner ring fire dividing bottom wall enclosing, and the air replenishment chamber is formed by matching with the second air replenishment sub-cavity on the inner ring fire cover, which has a simple structure and low production cost.

[0010] Exemplarily, an air supply port is provided on the bottom wall of the inner ring fire division, and air is introduced into the first air supply sub-cavity through the air supply port. In this way, air enters through the air supply port, and flows more smoothly in the first air supply sub-cavity and the second air supply sub-cavity, thereby ensuring air supply efficiency.

[0011] For example, an air replenishment channel is provided on the inner ring fire dividing bottom wall, the air replenishment port is formed at the air inlet end of the air replenishment channel, the air outlet end of the air replenishment channel is connected to the first air replenishment sub-cavity, and the cross-sectional area of ​​the air replenishment channel gradually decreases from the air inlet end to the air outlet end. The air replenishment channel provided in this way is more conducive to the entry of air, and the air enters more smoothly.

[0012] Exemplarily, a concave cavity is formed on the bottom wall of the inner ring fire divider, which is sunken toward the inner ring fire cover. The air supply port is located at the bottom of the concave cavity. On a predetermined plane parallel to the bottom of the concave cavity, the projection of the concave cavity covers the projection of the air supply port. It can be understood that the air introduced into the air supply chamber needs to pass through the concave cavity first, and then pass through the air supply port. To a certain extent, the concave cavity can be understood as an extension of the air supply chamber, and the projection of the concave cavity covers the projection of the air supply port. The projection of the concave cavity is relatively larger, which makes it easier for air to enter the concave cavity, and then the air can better enter the air supply chamber. This arrangement makes it easier for air to pass into the air supply chamber, and the air supply efficiency is higher.

[0013] Exemplarily, the cavity bottom, the first separator and the second separator of the cavity are combined to form a first sub-cavity. This arrangement further enlarges the cavity, allows air to be better replenished into the air replenishment chamber, and further improves the air replenishment efficiency.

[0014] Exemplarily, the burner includes a burner base, a flame distributor is arranged on the burner base, a secondary nozzle is arranged on the burner base, a secondary air inlet opposite to the secondary nozzle is arranged on the inner ring flame distributor bottom wall or the inner ring flame distributor side wall, and the secondary nozzle is connected to the first sub-cavity through the secondary air inlet. In this way, the gas mixture in the second gas mixing chamber flows more smoothly and the fire is more smoothly.

[0015] Exemplarily, the secondary nozzle is located on the side of the burner base facing the inner ring fire cover and is arranged toward the inner ring fire cover, the secondary air inlet is arranged on the inner ring fire dividing bottom wall, and the inner ring fire dividing bottom wall is provided with a limit ejection channel extending along the secondary air inlet in a direction away from the burner base, and the limit ejection channel is connected to the first sub-cavity. The limit ejection channel is located on the inner side of the inner ring fire dividing side wall, and there is no need to separately arrange an ejection tube on the inner ring fire dividing bottom wall, which makes more full use of the space enclosed by the inner ring fire dividing side wall and the inner ring fire dividing bottom wall, and the structure is more compact and occupies less space.

[0016] Exemplarily, the fire distributor includes an outer ring body, which is arranged around the outer periphery of the inner ring fire distributor side wall, and the outer ring body is covered with an outer ring fire cover, and the outer ring fire cover and the outer ring body are enclosed to form a third gas mixing chamber, and the outer ring body is provided with an outer ring ejector pipe on the side facing the burner seat, and the outer ring ejector pipe is connected to the third gas mixing chamber. In this way, the extension distance of the outer ring ejector pipe can be longer, the gas and air in the outer ring ejector pipe can be mixed more fully, and the combustion effect is better.

[0017] Exemplarily, a gas distribution channel connecting the third gas mixing chamber and the first gas mixing chamber is also connected to the side of the outer ring body facing the burner base. In this way, the gas mixture in the third gas mixing chamber and the first gas mixing chamber can communicate with each other. The air intake assembly is connected to one of the third gas mixing chamber and the first gas mixing chamber, so that the first gas mixing chamber and the third gas mixing chamber are both filled with gas mixture, and the inner ring and the outer ring are realized. The structure of the burner and the stove having the burner is simpler.

[0018] For example, a main nozzle is arranged on one side of the burner head base facing the inner ring flame cover, and the main nozzle is arranged opposite to the air inlet of the outer ring ejector pipe, and the height of the main nozzle is higher than the secondary nozzle. In this way, the main nozzle can be directed to the first mixing chamber and the third mixing chamber to ensure the combustion of the inner ring flame and the outer ring flame of the burner.

[0019] According to another aspect of the utility model, a cooker is provided, which comprises an air intake assembly and any one of the above-mentioned burners, wherein the air intake assembly comprises a secondary air intake pipe and a primary air intake pipe, wherein the secondary air intake pipe is connected to the second air mixing chamber, and the primary 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 2 is an exploded view of a burner according to an exemplary embodiment of the present utility model;

[0025] Figure 3-5 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;

[0026] Figure 6 A bottom view of a fire distributor according to an exemplary embodiment of the present utility model;

[0027] Figure 7 A top view of a fire distributor according to an exemplary embodiment of the present utility model;

[0028] Figure 8 A cross-sectional view of a fire distributor according to an exemplary embodiment of the present utility model;

[0029] Figure 9-10 A perspective view of an outer ring fire cover according to an exemplary embodiment of the present utility model;

[0030] Fig.11 A perspective view of an inner ring fire cover according to an exemplary embodiment of the present utility model;

[0031] Fig.12is a cross-sectional view of an inner ring fire cover according to an exemplary embodiment of the utility model;

[0032] Fig.13 A cross-sectional view of a small fire cover according to an exemplary embodiment of the utility model;

[0033] Fig.14 A three-dimensional diagram of a burner base according to an exemplary embodiment of the present invention;

[0034] Fig.15 A cross-sectional view of a burner base according to an exemplary embodiment of the present invention; and

[0035] Fig.16 The figure is a schematic diagram of gas flow of a cooker according to an exemplary embodiment of the present utility model.

[0036] The above drawings include the following reference numerals:

[0037] 10. Fire distributor; 101. First gas mixing chamber; 1011. First main sub-chamber; 1012. Second main sub-chamber; 102. Second gas mixing chamber; 1021. First sub-chamber; 1022. Second sub-chamber; 103. Air replenishment chamber; 1031. First air replenishment sub-chamber; 1032. Second air replenishment sub-chamber; 104. Third gas mixing chamber; 110. Inner ring fire distribution side wall; 120. Inner ring fire distribution bottom wall; 1210. Air replenishment port; 1230. Air replenishment channel; 1240. Concave cavity; 1241. Cavity bottom; 1250. Second air inlet; 130. First separator; 140. Second separator; 150. Outer ring body; 1510. Outer ring ejector tube; 160. Gas channel; 1610, gas distribution port; 170, extreme injection channel; 20, inner ring fire cover; 210, first air outlet; 220, second air outlet; 230, air supply channel; 240, inner ring fire cover side wall; 250, inner ring fire cover top wall; 260, first enclosure body; 270, second enclosure body; 280, small fire cover; 30, burner seat; 310, main nozzle; 320, secondary nozzle; 330, extreme mounting boss; 340, main mounting boss; 350, main gas channel; 360, secondary gas channel; 40, outer ring fire cover; 410, fire transmission part; 430, outer ring air outlet; 50, air intake assembly; 510, main air intake pipe; 520, secondary air intake pipe. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] The utility model provides a burner in the embodiment. Figure 2 and 3, the burner may include a ignition divider 10 and an inner ring fire cover 20 buckled on the ignition divider 10. The inner ring fire cover 20 and the ignition divider 10 may enclose a first air mixing chamber 101, a second air mixing chamber 102 and an air supply chamber 103 for introducing air. The introduced air may be the air in the kitchen space where the burner is located, or, in some embodiments, the air supply chamber 103 may also be connected to other air sources. The first air mixing chamber 101, the second air mixing chamber 102 and the air supply chamber 103 are all spaced apart from each other. A first air outlet 210 and a second air outlet 220 may be provided on the inner ring fire cover 20, the first air mixing chamber 101 is connected to the outside through the first air outlet 210, and the second air mixing chamber 102 is connected to the outside through the second air outlet 220. Exemplarily, the first air outlet 210 may be a fire outlet hole, a fire outlet groove or an air outlet end of any other fire outlet structure provided on the inner ring fire cover 20. A gas mixture may be introduced into the first mixing chamber 101, and the gas mixture is further mixed in the first mixing chamber 101, flows out through the first gas outlet 210 and burns, forming a first fire. The second gas outlet 220 may be a fire outlet hole, a fire outlet groove or an outlet end of any other fire outlet structure. A gas mixture may be introduced into the second mixing chamber 102, and the gas mixture is further mixed in the second mixing chamber 102, flows out through the second gas outlet 220 and burns, forming a second fire. The first fire and the second fire may be understood as follows: since the first mixing chamber 101 and the second mixing chamber 102 are isolated from each other, the fire of the first gas outlet 210 and the fire of the second gas outlet 220 are independent of each other. The first mixing chamber 101 may be an inner ring mixing chamber, and the first fire is an inner ring flame; the second mixing chamber 102 may be a limit mixing chamber that is smaller than the inner ring mixing chamber, and the second fire is a limit flame. Of course, the first mixing chamber 101 and the second mixing chamber 102 can be interchanged with each other, that is, their functions are also interchanged accordingly. Hereinafter, in this application, the first mixing chamber 101 is described as an inner ring mixing chamber and the second mixing chamber 102 is described as an extreme mixing chamber. Since the first mixing chamber 101 and the second mixing chamber 102 are independent of each other, that is, a wider range of ignition power can be achieved by reasonably setting the first mixing chamber 101, the first air outlet 210 and the second mixing chamber 102, the second air outlet 220. For example, in the structure of the inner ring fire cover 20, factors that can affect the ignition power include the total area of ​​the air outlet. Among them, the extreme high power of the inner ring fire cover 20 can be achieved by setting the first air outlet 210, such as increasing the total area of ​​the first air outlet 210 (including but not limited to increasing the diameter and / or number of the first air outlet 210). The ultimate low power of the inner ring fire cover 20 can be achieved by setting the second air outlet 220, for example, setting the total area of ​​the second air outlet 220 to be smaller.Furthermore, since the second gas mixing chamber 102 and the first gas mixing chamber 101 are isolated from each other, the first gas outlet 210 and the second gas outlet 220 are not affected by each other, so that the burner can have a higher maximum power and a lower maximum power. The power variation range of the burner is larger, which can better meet the different usage requirements of users.

[0041] Reference Figure 3 , the inner ring fire cover 20 may be provided with an air supply channel 230 for supplying air to the second air outlet 220, and the air supply channel 230 may be connected to the air supply chamber 103. In the radial direction of the inner ring fire cover 20, the air supply channel 230 may penetrate the inner ring fire cover 20. The air introduced into the air supply chamber 103 may supply air to the second air outlet 220 via the air supply channel 230, ensuring that there is sufficient oxygen at the second air outlet 220, and the combustion of the gas mixture flowing out of the second air outlet 220 may be more complete and have better thermal efficiency. This process can be understood as the supplement of secondary air. Among them, the supplement of primary air occurs in the initial mixing process of gas and air, and the supplement of secondary air occurs after the gas and air are mixed, that is, the air participating in the combustion of the gas mixture when it is burned is called secondary air.

[0042] In order to ensure the cooking effect of the limit flame, the limit flame is usually located at the inner center of the inner ring flame. The limit flame and the inner ring flame can be two concentric rings from the inside to the outside. However, in this way, there may be a problem of oxygen competition between the limit flame and the inner ring flame during combustion. Even if only the limit flame is burning, the limit flame located in the center may also have a problem of oxygen deficiency, resulting in incomplete combustion.

[0043] The burner provided by the utility model forms a first gas mixing chamber 101, a second gas mixing chamber 102 and a gas supplement chamber 103 between the ignition distributor 10 and the inner ring fire cover 20. The first gas mixing chamber 101 and the second gas mixing chamber 102 are independent of each other, that is, the first fire outlet and the second fire outlet are completely independent, and the power variation range of the burner is larger, which can better meet the different usage requirements of users. The air introduced into the gas supplement chamber 103 can be supplemented to the second air outlet 220 via the gas supplement channel 230, so that the second air outlet 220 can have sufficient oxygen to participate in the combustion, and the combustion of the gas mixture is more complete, avoiding the generation of excessive smoke and improving thermal efficiency. It should be noted that the scheme provided by the present application can be applicable to the situation where the position of the limit flame is located at the inner center of the inner ring flame, which can effectively solve the problem of insufficient combustion of the limit flame. The scheme can also be applied to the situation where the limit flame is in other positions, and the present application does not make too many restrictions on this.

[0044] For example, in conjunction with reference Figure 2 , 3, and 7, the fire divider 10 may include an inner ring fire divider side wall 110 and an inner ring fire divider bottom wall 120 connected to the bottom of the inner ring fire divider side wall 110. A first partition 130 may be connected to the inner ring fire divider bottom wall 120. The inner ring fire divider side wall 110, the first partition 130 and a portion of the inner ring fire divider bottom wall 120 may be combined to form a first main sub-chamber 1011. A second main sub-chamber 1012 may be formed on the inner ring fire cover 20. The first main sub-chamber 1011 and the second main sub-chamber 1012 are combined to form a first gas mixing chamber 101. The inner ring fire divider side wall 110 may be arranged in a roughly circular shape, and the first partition 130 may be located on the inner side of the circular structure, and the interval between the two and the inner ring fire divider bottom wall 120 corresponding to the interval together enclose the first main sub-chamber 1011. Combined with reference Fig.11 and 12 , the inner ring fire cover 20 may specifically include an inner ring fire cover side wall 240 and an inner ring fire cover top wall 250 connected to the top of the inner ring fire cover side wall 240. A first enclosure body 260 may be connected to the inner ring fire cover top wall 250. The inner ring fire cover side wall 240, the first enclosure body 260 and a portion of the inner ring fire cover top wall 250 may be enclosed to form a second main sub-chamber 1012. In this way, by providing the first separator 130, a first main sub-chamber 1011 is formed in the igniter 10, and is matched with the second main sub-chamber 1012 in the inner ring fire cover 20 to form a first gas mixing chamber 101, so that the overall structure of the burner is simpler and the space utilization is more reasonable.

[0045] For example, continue to combine Figure 2 , 3and 7, a second partition 140 may be connected to the inner ring fire dividing bottom wall 120. The second partition 140, the first partition 130 and a portion of the inner ring fire dividing bottom wall 120 may be combined to form a first sub-chamber 1021. A second sub-chamber 1022 may be formed on the inner ring fire cover 20. The first sub-chamber 1021 and the second sub-chamber 1022 may be combined to form a second gas mixing chamber 102. The second partition 140 may be located on the inner side of the first partition 130. The interval between the first partition 130 and the second partition 140 and the inner ring fire dividing bottom wall 120 corresponding to the interval together form the first sub-chamber 1021. A second enclosure 270 may also be connected to the inner ring fire cover top wall 250, and the first enclosure 260, the second enclosure 270 and a portion of the inner ring fire cover top wall 250 may be combined to form the second sub-chamber 1022. The second air outlet 220 can be located on the inner ring fire cover 20 and communicated with the second sub-chamber 1022. In this way, the first sub-chamber 1021 and the first main sub-chamber 1011 are separated in the fire divider 10 by the first separator 130 and the second separator 140, so that the internal structure of the fire divider 10 is more fully utilized. There is no need to set a separate structure on the outside, and the production cost is lower. In an embodiment not shown, the second gas mixing chamber and the first gas mixing chamber can be completely independent. The second gas mixing chamber is cylindrical, and the first gas mixing chamber is annular. The first gas mixing chamber is arranged around the periphery of the second gas mixing chamber and the two are spaced apart.

[0046] For example, the second air outlet 220 may be directly connected to the outside, that is, directly exposed to the outside. Figure 3 and 13 The inner ring fire cover 20 may include a body and a small fire cover 280 buckled on the body, and a ventilation gap may be provided between the small fire cover 280 and the body. The second air outlet 220 may be located inside the inner ring fire cover 20 and communicate with the outside through the ventilation gap.

[0047] For example, in conjunction with reference Figure 3 and 7, the second partition 140 and part of the inner ring fire dividing bottom wall 120 can enclose a first air supplement chamber 1031. A second air supplement chamber 1032 can be formed on the inner ring fire cover 20. The first air supplement chamber 1031 and the second air supplement chamber 1032 can be matched to form the air supplement chamber 103. The air supplement channel 230 can be arranged on the inner ring fire cover 20, and the air supplement channel 230 can be connected with the second air supplement chamber 1032. Exemplarily, the second partition 140 can be circular, and the inner ring fire dividing bottom wall 120 corresponding to the hollow part in the middle of the circle and the second partition 140 can be enclosed together to form the first air supplement chamber 1031. In the embodiment where the inner ring fire cover 20 includes an inner ring body and a small fire cover 280, the first air supplement chamber 1031 can include a part located in the inner ring body and a part located in the inner ring fire cover 20. The air supplement channel 230 can be located on the inner ring fire cover 20. In this way, the first air replenishment chamber 1031 is formed by the second partition 140 and the inner ring fire bottom wall 120, and is matched with the second air replenishment chamber 1032 on the inner ring fire cover 20 to form the air replenishment chamber 103, which has a simple structure and low production cost.

[0048] For example, in conjunction with reference Figure 3 and 8 , the inner ring fire-dividing bottom wall 120 may be provided with an air supply port 1210, and air is passed into the first air supply sub-chamber 1031 through the air supply port 1210. In an embodiment provided with a burner seat 30, the ignition distributor 10 is supported on the burner seat 30, and the inner ring fire-dividing bottom wall 120 may be spaced apart from the burner seat 30 to facilitate air passage. Air may flow out through the air supply port 1210, the first air supply sub-chamber 1031, the second air supply sub-chamber 1032 in sequence and through the air supply channel 230 to provide air supply for combustion at the second air outlet 220. In this arrangement, air enters through the air supply port 1210, and flows more smoothly in the first air supply sub-chamber 1031 and the second air supply sub-chamber 1032, thereby ensuring air supply efficiency. In an embodiment not shown, the air supply port may be provided on the side wall of the inner ring fire-dividing side wall.

[0049] For example, in conjunction with reference Figure 3 and 8, an air replenishment channel 1230 is provided on the inner ring fire-dividing bottom wall 120, and the air replenishment port 1210 is formed at the air inlet end of the air replenishment channel 1230, and the air outlet end of the air replenishment channel 1230 is connected to the first air replenishment sub-chamber 1031, and the cross-sectional area of ​​the air replenishment channel 1230 gradually decreases from the air inlet end to the air outlet end. That is to say, along the air flow direction, the cross-sectional area of ​​the air replenishment channel 1230 is approximately small. Specifically, the air replenishment channel 1230 can be formed by the wall body of the inner ring fire-dividing bottom wall 120. Alternatively, in an embodiment not shown, the air replenishment channel can also be a channel connected to the inner ring fire-dividing bottom wall. Preferably, the air replenishment channel 1230 is formed by the inner ring fire-dividing bottom wall 120 itself, and the side of the inner ring fire-dividing bottom wall 120 facing away from the inner ring fire cover 20 is the air inlet end, and the side facing the inner ring fire cover 20 is the air outlet end. The air replenishment channel 1230 arranged in this way is more conducive to the entry of air, and the air enters more smoothly. In some embodiments, an air nozzle can be provided, and the air nozzle can be arranged opposite to the air replenishment port. At this time, the air replenishment channel can also have a certain ejection effect, so that the air replenishment efficiency is higher.

[0050] For example, in conjunction with reference Figure 3 and 8 , a concave cavity 1240 recessed toward the inner ring fire cover 20 may be formed on the inner ring fire dividing bottom wall 120. The air supply port 1210 may be located at the cavity bottom 1241 of the concave cavity 1240. On a predetermined plane parallel to the cavity bottom 1241 of the concave cavity 1240, the projection of the concave cavity 1240 covers the projection of the air supply port 1210. In other words, the height of the portion of the inner ring fire dividing bottom wall 120 corresponding to the air supply chamber 103 is higher than that of the other portions of the inner ring fire dividing bottom wall 120. It can be understood that the air introduced into the air supply chamber 103 needs to first pass through the concave cavity 1240 and then enter through the air supply port 1210. To a certain extent, the concave cavity 1240 can be understood as an extension of the air replenishing chamber 103. The projection of the concave cavity 1240 covers the projection of the air replenishing port 1210. The projection of the concave cavity 1240 is relatively larger, which makes it easier for air to enter the concave cavity 1240, and then the air can better enter the air replenishing chamber 103. This arrangement makes it easier for air to enter the air replenishing chamber 103, and the air replenishing efficiency is higher.

[0051] For example, refer to Figure 3 and 8, the cavity bottom 1241 of the concave cavity 1240, the first partition 130 and the second partition 140 enclose the first sub-cavity 1021. That is to say, the cavity bottom 1241 of the concave cavity 1240 includes both a portion corresponding to the first air replenishment sub-cavity 1031 and a portion corresponding to the first sub-cavity 1021. This arrangement further enlarges the concave cavity 1240, so that air can be better replenished into the air replenishment chamber 103, and the air replenishment efficiency is further improved. In an embodiment not shown, part of the inner ring fire-dividing bottom wall corresponding to the first sub-cavity can be located outside the concave cavity.

[0052] For example, in conjunction with reference Figure 2 and 4 , the burner may include a burner seat 30. The ignition divider 10 is disposed on the burner seat 30, and a secondary nozzle 320 may be disposed on the burner seat 30. A secondary air inlet 1250 opposite to the secondary nozzle 320 may be disposed on the inner ring fire dividing bottom wall 120 or the inner ring fire dividing side wall 110, and the secondary nozzle 320 is connected to the first sub-cavity 1021 through the secondary air inlet 1250. Specifically, a limit mounting boss 330 may be disposed on the burner seat 30, and the secondary nozzle 320 is mounted on the limit mounting boss 330. The gas is sprayed into the secondary air inlet 1250 by the secondary nozzle 320, and the surrounding air is drawn in. The air and the gas are mixed to form a gas mixture, which flows out through the second gas outlet 220 and burns. With this arrangement, the gas mixture in the second gas mixing chamber 102 flows more smoothly and the fire is more smooth.

[0053] For example, refer to Figure 4 , the secondary nozzle 320 can be located on the side of the burner seat 30 facing the inner ring fire cover 20 and is arranged toward the inner ring fire cover 20. The secondary air inlet 1250 is arranged on the inner ring fire dividing bottom wall 120, and the inner ring fire dividing bottom wall 120 is provided with a limit injection channel 170 extending along the secondary air inlet 1250 in the direction away from the burner seat 30, and the limit injection channel 170 is connected to the first sub-cavity 1021. Alternatively, the limit injection channel 170 can be understood as a part of the first sub-cavity 1021. The limit injection channel 170 constitutes a part of the first sub-cavity 1021. Figure 4 Taking the perspective shown in as an example, the secondary nozzle 320 is arranged upward, and the extreme injection channel 170 is also arranged in the up-down direction. The gas enters the extreme injection channel 170 from bottom to top through the secondary air inlet 1250. The extreme injection channel 170 is located on the inner side of the inner ring fire-dividing side wall 110, and there is no need to set an injection tube separately on the inner ring fire-dividing bottom wall 120. The space enclosed by the inner ring fire-dividing side wall 110 and the inner ring fire-dividing bottom wall 120 is more fully utilized, and the structure is more compact and occupies less space. In an embodiment not shown, the extreme injection channel can be arranged at the bottom of the inner ring fire-dividing bottom wall and extended in the horizontal direction, and the secondary nozzle faces the air inlet of the extreme injection channel.

[0054] For example, in conjunction with reference Figure 2 , 3 -6, the ignition divider 10 may include an outer ring body 150, and the outer ring body 150 is arranged around the outer periphery of the inner ring ignition divider side wall 110. An outer ring fire cover 40 may be provided on the outer ring body 150, and the outer ring fire cover 40 and the outer ring body 150 together form a third gas mixing chamber 104. An outer ring ejector pipe 1510 may be provided on the side of the outer ring body 150 facing the burner seat 30, and the outer ring ejector pipe 1510 may be connected to the third gas mixing chamber 104. The gas is sprayed into the outer ring ejector pipe 1510, and the surrounding air is ejected, and the air and the gas are mixed. The outer ring ejector pipe 1510 is arranged on the bottom surface of the outer ring body 150. In this way, the extension distance of the outer ring ejector pipe 1510 can be longer, the mixing of the gas and air in the outer ring ejector pipe 1510 can be more complete, and the combustion effect is better. By way of example, in combination with reference Fig. 9 and 10 The outer ring fire cover 40 may also be provided with a fire transfer portion 410. The fire transfer portion 410 may be provided with a fire transfer groove that penetrates along the radial direction of the outer ring fire cover 40. The outer ring fire cover 40 may be provided with an outer ring air outlet 430 that communicates with the third gas mixing chamber 104 and the outside.

[0055] For example, in conjunction with reference Figure 5 and 6 , the side of the outer ring body 150 facing the burner seat 30 is also connected to a gas separation channel 160 connecting the third gas mixing chamber 104 and the first gas mixing chamber 101. Specifically, a gas separation port 1610 may be provided on the outer ring body 150, and the gas mixture in the third gas mixing chamber 104 flows through the gas separation port 1610 and enters the first gas mixing chamber 101 through the gas separation channel 160. In other words, the first gas mixing chamber 101 and the third gas mixing chamber 104 are connected to each other. In this way, the gas mixture in the third gas mixing chamber 104 and the first gas mixing chamber 101 can communicate with each other. The air intake assembly 50 is connected to one of the third gas mixing chamber 104 and the first gas mixing chamber 101, so that the first gas mixing chamber 101 and the third gas mixing chamber 104 are both provided with a gas mixture, and the inner ring and the outer ring fire are realized, and the structure of the burner and the stove having the burner is simpler. It is particularly suitable for embodiments in which the air intake assembly 50 is connected to only two air intake pipes. The two air intake pipes can be connected to the third mixing chamber 104 and the second mixing chamber 102 respectively, that is, outer ring firing, inner ring firing and extreme firing can be achieved.

[0056] For example, in conjunction with reference Figure 4 and 5 The outer ring ejector tube 1510 is perpendicular to the limit ejector channel 170. The extension direction of the limit ejector channel 170 can be referred to as Figure 4 The vertical direction in the middle is the direction XX. The outer ring ejector tube 1510 extends in a predetermined plane. Figure 4Taking the middle perspective as an example, the predetermined plane is perpendicular to the paper and parallel to the direction YY, i.e., the horizontal plane. In other words, the gas mixture in the outer ring ejector tube 1510 flows approximately in the horizontal direction, and the gas mixture in the limit ejector channel 170 flows approximately in the vertical direction.

[0057] For example, in conjunction with reference Figure 2 , 4 , 5 and 15, a main nozzle 310 may be provided on one side of the burner base 30 facing the inner ring fire cover 20, and the main nozzle 310 is arranged opposite to the air inlet of the outer ring ejector tube 1510, and the height of the main nozzle 310 may be higher than the secondary nozzle 320. The gas of the main nozzle 310 enters the outer ring ejector tube 1510, and the gas in the outer ring ejector tube 1510 may enter the first gas mixing chamber 101 through the gas distribution channel 160. In other words, the main nozzle 310 may supply gas to the first gas mixing chamber 101 and the third gas mixing chamber 104. The main nozzle 310 sprays gas into the outer ring ejector tube 1510, and air is ejected into the outer ring ejector tube 1510, and the gas and air are mixed to form a gas mixture. With this arrangement, the main nozzle 310 can supply gas to the first gas mixing chamber 101 and the third gas mixing chamber 104 to ensure the combustion of the inner ring flame and the outer ring flame of the burner. Exemplarily, two outer ring ejector tubes 1510 may be provided, and two main nozzles 310 may correspond to the air inlets of the two outer ring ejector tubes 1510. Exemplarily, a main gas channel 350 and a secondary gas channel 360 may be provided on the burner head seat 30, the main gas channel 350 is connected to the main nozzle 310, and the secondary gas channel 360 is connected to the secondary nozzle 320. Exemplarily, a main mounting boss 340 may be provided on the burner head seat 30. The main nozzle 310 may be mounted to the main mounting boss 340.

[0058] According to another aspect of the present invention, a stove is also provided. Figure 1 , 3 and 16, the cooker may include an air intake assembly 50 and any of the above-mentioned burners. The air intake assembly 50 may include a secondary air intake pipe 520 and a main air intake pipe 510, the secondary air intake pipe 520 is connected to the second air mixing chamber 102, and the main air intake pipe 510 is connected to the first air mixing chamber 101. Since the burner adopts the technical solution of any of the above-mentioned embodiments, the cooker at least has the beneficial effects brought by the technical solution of the above-mentioned embodiments, which will not be repeated here. In the embodiment in which the third air mixing chamber 104 is provided, the main air intake pipe 510 can also be connected to the third air mixing chamber 104. Exemplarily, the main air intake pipe 510 can be connected to the main gas channel 350, and the secondary air intake pipe 520 is connected to the secondary gas channel 360.

[0059] Specifically, with reference to Figure 3 , 5 and 16, the flow of gas includes the following three paths:

[0060] Path 1: main air intake pipe 510, main gas channel 350, main nozzle 310, outer ring ejector pipe 1510, third gas mixing chamber 104, and outflow from outer ring gas outlet 430 and burn;

[0061] Path 2: main air intake pipe 510, main gas channel 350, main nozzle 310, outer ring ejector pipe 1510, gas distribution channel 160, first gas mixing chamber 101, and flows out from the first gas outlet 210 and burns;

[0062] Path three: secondary air intake pipe 520, secondary gas channel 360, secondary nozzle 320, extreme injection channel 170, second gas mixing chamber 102, and flows out from the second gas outlet 220 and burns.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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 a fire distributor and an inner ring fire cover buckled on the fire distributor, wherein the inner ring fire cover and the fire distributor enclose a first air mixing chamber, a second air mixing chamber and an air supplement chamber for introducing air, wherein the first air mixing chamber, the second air mixing chamber and the air supplement chamber are spaced apart from each other; The inner ring fire cover is provided with a first air outlet and a second air outlet, the first air mixing chamber is connected to the outside through the first air outlet, the second air mixing chamber is connected to the outside through the second air outlet, and the inner ring fire cover is provided with an air supply channel for supplying air to the second air outlet, and the air supply channel is connected to the air supply chamber.

2. The burner according to claim 1, characterized in that The fire divider includes an inner ring fire divider side wall and an inner ring fire divider bottom wall connected to the bottom of the inner ring fire divider side wall, a first separator is connected to the inner ring fire divider bottom wall, the inner ring fire divider side wall, the first separator and part of the inner ring fire divider bottom wall together form a first main sub-chamber, a second main sub-chamber is formed on the inner ring fire cover, the first main sub-chamber and the second main sub-chamber are combined to form the first mixing chamber.

3. The burner according to claim 2, characterized in that: A second partition is connected to the inner ring fire dividing bottom wall, and the second partition, the first partition and part of the inner ring fire dividing bottom wall together form a first sub-chamber, and a second sub-chamber is formed on the inner ring fire cover, and the first sub-chamber and the second sub-chamber are combined to form the second gas mixing chamber.

4. The burner according to claim 3, characterized in that The second partition and part of the inner ring fire dividing bottom wall enclose a first air supplement chamber, a second air supplement chamber is formed on the inner ring fire cover, and the first air supplement chamber and the second air supplement chamber are combined to form the air supplement chamber.

5. The burner according to claim 4, characterized in that An air supply port is provided on the inner ring fire dividing bottom wall, and air is introduced into the first air supply sub-cavity through the air supply port.

6. The burner according to claim 5, characterized in that An air replenishment channel is provided on the bottom wall of the inner ring fire division, the air replenishment port is formed at the air inlet end of the air replenishment channel, the air outlet end of the air replenishment channel is connected to the first air replenishment chamber, and the cross-sectional area of ​​the air replenishment channel gradually decreases from the air inlet end to the air outlet end.

7. The burner according to claim 5, characterized in that A concave cavity is formed on the inner ring fire dividing bottom wall and is recessed toward the inner ring fire cover. The air supply port is located at the bottom of the concave cavity. On a predetermined plane parallel to the bottom of the concave cavity, the projection of the concave cavity covers the projection of the air supply port.

8. The burner according to claim 7, characterized in that The cavity bottom, the first partition and the second partition together form the first sub-cavity.

9. The burner according to claim 3, characterized in that The burner includes a burner seat, the flame divider is arranged on the burner seat, a secondary nozzle is arranged on the burner seat, a secondary air inlet opposite to the secondary nozzle is arranged on the inner ring flame divider bottom wall or the inner ring flame divider side wall, and the secondary nozzle is connected with the first sub-cavity through the secondary air inlet.

10. The burner according to claim 9, characterized in that The secondary nozzle is located on the side of the burner seat facing the inner ring fire cover and is arranged toward the inner ring fire cover. The secondary air inlet is arranged on the bottom wall of the inner ring fire division. The bottom wall of the inner ring fire division is provided with a limit injection channel extending along the secondary air inlet in the direction away from the burner seat. The limit injection channel is connected to the first sub-cavity.

11. The burner according to claim 10, characterized in that The fire divider includes an outer ring body, which is arranged around the outer periphery of the inner ring fire divider side wall, and an outer ring fire cover is provided on the outer ring body. The outer ring fire cover and the outer ring body together form a third gas mixing chamber, and an outer ring ejector pipe is provided on the side of the outer ring body facing the burner seat, and the outer ring ejector pipe is connected to the third gas mixing chamber.

12. The burner according to claim 11, characterized in that A gas separation passage connecting the third gas mixing chamber and the first gas mixing chamber is also connected to the side of the outer ring body facing the furnace head seat.

13. The burner according to claim 11 or 12, characterized in that: A main nozzle is arranged on the side of the burner seat facing the inner ring fire cover. The main nozzle is arranged opposite to the air inlet of the outer ring ejector pipe. The height of the main nozzle is higher than that of the secondary nozzle.

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 secondary air intake pipe and a main air intake pipe, the secondary air intake pipe is connected to the second air mixing chamber, and the main air intake pipe is connected to the first air mixing chamber.

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