Combustor and gas cooker

Abstract

The utility model belongs to the technical field of kitchen ware, and discloses a burner and a gas cooker. According to the combustor, at least one gas mixing cavity channel is formed in a combustor body, a fire cover covers the combustor body, a plurality of fire holes are formed in the fire cover, each fire hole is communicated with the corresponding gas mixing cavity channel, a primary air inlet cavity and at least one primary air supplementing hole are formed in a combustor base, and the primary air inlet cavity is communicated with the primary air supplementing hole. An air outlet of the fan is communicated with the primary air inlet cavity, the primary air supplementing holes are communicated with the primary air inlet cavity and the at least one gas mixing cavity channel, the nozzle is arranged on the burner base, the nozzle is communicated with the gas pipeline and used for spraying gas into the gas mixing cavity channel, and the primary air supplementing holes are located in the periphery of the nozzle. The primary air supplementing hole is communicated with the primary air inlet cavity and the at least one gas mixing cavity channel, it is ensured that the combustor can obtain sufficient and uniform air supplementation in the using process, smoke is reduced, and the combustion efficiency of the combustor is improved.

Description

Technical Field

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

[0002] The burner is an important component that affects the energy consumption level of the gas stove, and its combustion efficiency plays an important role in affecting the energy consumption level of the gas stove. During the use of the burner, if the burner does not receive sufficient and uniform air supply, the gas will not burn completely, thus affecting the combustion efficiency.

[0003] Therefore, there is an urgent need for a burner to solve the problems in the prior art. Utility Model Content

[0004] The utility model aims to provide a burner, which connects a primary air inlet chamber and at least one air mixing chamber through a primary air replenishment hole, thereby ensuring that the burner can obtain sufficient and uniform air supply during use, reducing smoke and improving the combustion efficiency of the burner.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Burner, comprising:

[0007] A burner body, wherein the burner body is provided with at least one gas mixing cavity;

[0008] A fire cover, which is arranged on the burner body, and has a plurality of fire holes, each of which is connected to the corresponding gas mixing cavity;

[0009] A burner base, wherein the burner base is provided with a primary air inlet cavity and at least one primary air replenishment hole;

[0010] A fan, wherein the air outlet of the fan is connected to the primary air inlet cavity, and the primary air replenishment hole is connected to the primary air inlet cavity and at least one of the mixing cavities;

[0011] A nozzle is arranged on the burner base, the nozzle is connected to the gas pipeline, and the nozzle is used to spray the gas into the gas mixing cavity; the primary air replenishment hole is located at the periphery of the nozzle.

[0012] Optionally, the primary air replenishment hole is a U-shaped hole, or the primary air replenishment hole is a plurality of strip holes arranged in a U-shape, or the primary air replenishment hole is a plurality of round holes arranged in a U-shape.

[0013] Optionally, the spraying direction of the nozzle is the same as the ejection direction of the air in the primary air inlet cavity from the primary air replenishing hole.

[0014] Optionally, the gas mixing cavity comprises a first inner ring gas mixing cavity and a first outer ring gas mixing cavity which are independent of each other;

[0015] The fire cover comprises a first inner ring fire cover and a first outer ring fire cover which are arranged concentrically, wherein a first inner ring fire hole on the first inner ring fire cover is connected to the first inner ring gas mixing cavity, and a first outer ring fire hole on the first outer ring fire cover is connected to the first outer ring gas mixing cavity;

[0016] The primary air replenishment hole comprises a first inner ring primary air replenishment hole and a first outer ring primary air replenishment hole, the first inner ring primary air replenishment hole is connected to the primary air inlet cavity and the first inner ring mixing cavity, the first outer ring primary air replenishment hole is connected to the primary air inlet cavity and the first outer ring mixing cavity, and the fan is connected to the primary air inlet cavity;

[0017] The nozzle includes a first inner ring nozzle and a first outer ring nozzle, the first inner ring nozzle corresponds to the first inner ring air mixing cavity, the first inner ring primary air replenishment hole is located at the outer periphery of the first inner ring nozzle, the first outer ring nozzle corresponds to the first outer ring air mixing cavity, and the first outer ring primary air replenishment hole is located at the outer periphery of the first outer ring nozzle.

[0018] Optionally, the gas mixing cavity comprises a second inner ring gas mixing cavity, a middle ring gas mixing cavity and a second outer ring gas mixing cavity which are independent of each other;

[0019] The fire cover comprises a second inner ring fire cover, a middle ring fire cover and a second outer ring fire cover which are arranged concentrically, the second inner ring fire hole on the second inner ring fire cover is connected to the second inner ring gas mixing cavity, the middle ring fire hole on the middle ring fire cover is connected to the middle ring gas mixing cavity, and the second outer ring fire hole on the second outer ring fire cover is connected to the second outer ring gas mixing cavity;

[0020] The primary air replenishment hole comprises a middle ring primary air replenishment hole and a second outer ring primary air replenishment hole, the middle ring primary air replenishment hole is connected to the primary air inlet cavity and the middle ring air mixing cavity, the second outer ring primary air replenishment hole is connected to the primary air inlet cavity and the second outer ring air mixing cavity, and the fan is connected to the primary air inlet cavity;

[0021] The nozzle includes a second inner ring nozzle, a middle ring nozzle and a second outer ring nozzle, the second inner ring nozzle corresponds to the second inner ring air mixing cavity, the middle ring nozzle corresponds to the middle ring air mixing cavity, and the second outer ring nozzle corresponds to the second outer ring air mixing cavity; the middle ring primary air replenishment hole is located at the periphery of the middle ring nozzle, and the second outer ring primary air replenishment hole is located at the periphery of the second outer ring nozzle.

[0022] Optionally, a primary air inlet is provided on the burner base, and an air outlet nozzle of the fan is inserted into the primary air inlet.

[0023] The utility model aims to provide a gas cooker, which can reduce smoke and improve the combustion efficiency of the burner by adopting the above-mentioned burner, thereby improving the energy consumption level of the gas cooker.

[0024] To achieve this purpose, the utility model adopts the following technical solutions:

[0025] A gas cooker comprising the above-mentioned burner.

[0026] Beneficial effects:

[0027] The utility model provides a burner, including a burner body, a fire cover, a burner base, a fan and a nozzle. The burner body is provided with at least one air mixing cavity. The fire cover is arranged on the burner body. A plurality of fire holes are arranged on the fire cover. Each fire hole is communicated with the corresponding air mixing cavity. A primary air inlet cavity and at least one primary air replenishment hole are provided on the burner base. The air outlet of the fan is communicated with the primary air inlet cavity. The primary air replenishment hole is communicated with the primary air inlet cavity and the at least one air mixing cavity. The nozzle is arranged on the burner base. The nozzle is communicated with the gas pipeline. The nozzle is used to spray gas into the air mixing cavity. The primary air replenishment hole is located on the periphery of the nozzle. The primary air replenishment hole is communicated with the primary air inlet cavity and the at least one air mixing cavity, thereby ensuring that the burner can obtain sufficient and uniform air supply during use, reducing smoke and improving the combustion efficiency of the burner.

[0028] The gas cooker provided by the utility model comprises the above-mentioned burner, which can reduce smoke and improve the combustion efficiency of the burner, thereby improving the energy consumption level of the gas cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the burner provided in the first embodiment of the utility model at a certain viewing angle;

[0030] Figure 2 It is a schematic structural diagram of the burner provided in the first embodiment of the utility model from another perspective;

[0031] Figure 3 is a schematic structural diagram of the burner provided in the first embodiment of the utility model from another viewing angle;

[0032] Figure 4 yes Figure 3 Sectional view at AA in the middle;

[0033] Figure 5 yes Figure 4 Sectional view at the middle BB;

[0034] Figure 6 yes Figure 4 Sectional view at CC;

[0035] Figure 7 This is a schematic structural diagram of a burner provided in Embodiment 2 of the present utility model at a certain viewing angle;

[0036] Figure 8 It is a structural schematic diagram of the burner provided in the second embodiment of the utility model from another perspective;

[0037] Fig. 9 is a schematic structural diagram of the burner provided in the second embodiment of the utility model from another viewing angle;

[0038] Fig.10 yes Fig. 9 Sectional view at DD in the middle;

[0039] Fig.11 yes Fig.10 Sectional view at EE;

[0040] Fig.12 yes Fig.10 Cross-sectional view at FF.

[0041] In the figure:

[0042] 100, burner body; 110, first inner ring gas mixing cavity; 120, first outer ring gas mixing cavity; 130, middle ring gas mixing cavity; 140, second outer ring gas mixing cavity;

[0043] 210, first inner ring fire cover; 220, first outer ring fire cover; 230, second inner ring fire cover; 240, middle ring fire cover; 250, second outer ring fire cover;

[0044] 300, burner base; 310, primary air inlet cavity; 320, first inner ring primary air replenishment hole; 330, first outer ring primary air replenishment hole; 340, middle ring primary air replenishment hole; 350, second outer ring primary air replenishment hole; 360, primary air inlet;

[0045] 400, fan;

[0046] 510, first inner ring nozzle; 520, first outer ring nozzle; 530, second inner ring nozzle; 540, middle ring nozzle; 550, second outer ring nozzle;

[0047] 600, support assembly; 610, support arm; 620, support block. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0052] This embodiment provides a burner such as Figure 1-Figure 12As shown, the burner includes a burner body 100, a fire cover, a burner base 300, a fan 400 and a nozzle. The burner body 100 is provided with at least one air mixing cavity. The fire cover is arranged on the burner body 100. The fire cover is provided with a plurality of fire holes. Each fire hole is connected to the corresponding air mixing cavity. The burner base 300 is provided with a primary air inlet cavity 310 and at least one primary air supplement hole. The air outlet of the fan 400 is connected to the primary air inlet cavity 310. The primary air supplement hole is connected to the primary air inlet cavity 310 and the at least one air mixing cavity. The nozzle is arranged on the burner base 300, and the nozzle is connected with the gas pipeline. The nozzle is used to spray the gas into the gas mixing cavity. The primary air replenishment hole is located at the periphery of the nozzle. The primary air sprayed by the fan 400 enters the primary air inlet cavity 310. The air in the primary air inlet cavity 310 enters the gas mixing cavity evenly through the primary air replenishment holes located on the periphery of the nozzle. The gas and air are fully mixed in the gas mixing cavity and then burned, which ensures that the burner can obtain sufficient and even air supply during use, reduces smoke, and improves the combustion efficiency of the burner.

[0053] Optionally, the primary air replenishment hole is a U-shaped hole. The design of the U-shaped hole enables the air in the primary air inlet chamber 310 to enter the mixing chamber evenly and stably, providing a more stable air supply, improving the combustion efficiency of the burner, and helping to maintain combustion stability.

[0054] In another embodiment, the primary air replenishment holes are multiple strip holes arranged in a U shape, or the primary air replenishment holes are multiple round holes arranged in a U shape, which can also provide sufficient primary air supply for the burner combustion process and improve the combustion efficiency of the burner.

[0055] Optionally, the primary air replenishment hole is located on the periphery of the nozzle, which ensures that the primary air is evenly replenished into the mixing cavity while ensuring a more compact burner layout, reducing the overall volume of the burner, and making the burner adaptable to the space limitations of various gas stoves.

[0056] Optionally, the spray direction of the nozzle is the same as the direction in which the air in the primary air inlet chamber 310 is ejected from the primary air replenishing hole. Specifically, during the operation of the burner, part of the primary air is ejected from the nozzle into the gas mixing chamber, and part of the primary air is provided by the fan 400, and after being decelerated by the uniform flow in the primary air inlet chamber 310, it is ejected into the gas mixing chamber through the primary air replenishing hole. The spray direction of the nozzle is the same as the direction in which the air in the primary air inlet chamber 310 is ejected from the primary air replenishing hole, which will not affect the ability of the nozzle to eject the primary air, and can make the air enter the gas mixing chamber more evenly, so that the gas can be fully burned.

[0057] Optionally, a primary air inlet 360 is provided on the burner base 300, and the air outlet of the fan 400 is inserted into the primary air inlet 360, so that the fan 400 and the burner base 300 are closely combined, the overall volume of the burner is reduced, and the entire burner can be made more compact. Inserting the air outlet of the fan 400 into the primary air inlet 360 simplifies the structure of the burner, reduces the number of connecting parts, helps to improve the manufacturing efficiency of the burner, and reduces maintenance costs.

[0058] Optionally, the primary air inlet 360 on the burner base 300 and the primary air replenishment hole on the burner base 300 are staggered. In this embodiment, the primary air inlet 360 is arranged at the bottom of one side wall of the primary air inlet chamber 310, and the primary air replenishment hole is arranged at the top of the other side wall of the primary air inlet chamber 310. The direction in which air enters the primary air inlet chamber 310 is perpendicular to the direction in which air leaves the primary air inlet chamber 310 through the primary air replenishment hole, so that the primary air inlet chamber 310 can play a role in uniform flow deceleration, ensuring that the primary air is evenly replenished into the mixing channel, so as to ensure sufficient combustion of the gas and improve combustion efficiency.

[0059] Optionally, a support assembly 600 is further provided on the burner base 300, and the support assembly 600 is used to support the cooking utensil, so as to ensure the stability of the cooking utensil during the cooking process.

[0060] Optionally, the support assembly 600 includes a support arm 610 and a support block 620. The plurality of support arms 610 extend radially outward from the burner, and each support arm 610 is provided with a support block 620, so that the cooking utensil is evenly stressed and the safety of use is improved.

[0061] Embodiment 1

[0062] like Figure 1-Figure 6As shown, the burner provided in this embodiment has a gas mixing cavity including a first inner ring gas mixing cavity 110 and a first outer ring gas mixing cavity 120 which are independent of each other, a fire cover including a first inner ring fire cover 210 and a first outer ring fire cover 220 which are concentrically arranged, a first inner ring fire hole on the first inner ring fire cover 210 is connected to the first inner ring gas mixing cavity 110, a first outer ring fire hole on the first outer ring fire cover 220 is connected to the first outer ring gas mixing cavity 120, a primary air replenishment hole includes a first inner ring primary air replenishment hole 320 and a first outer ring primary air replenishment hole 330, and the first inner ring primary air replenishment hole 320 is connected to the primary air inlet cavity 310 And the first inner ring mixing chamber 110, the first outer ring primary air replenishment hole 330 is connected to the primary air inlet chamber 310 and the first outer ring mixing chamber 120, the fan 400 is connected to the primary air inlet chamber 310, the nozzle includes a first inner ring nozzle 510 and a first outer ring nozzle 520, the first inner ring nozzle 510 corresponds to the first inner ring mixing chamber 110, the first inner ring primary air replenishment hole 320 is the outer periphery of the first inner ring nozzle 510, the first outer ring nozzle 520 corresponds to the first outer ring mixing chamber 120, and the first outer ring primary air replenishment hole 330 is located at the outer periphery of the first outer ring nozzle 520.

[0063] When the burner is working, the primary air ejected by the fan 400 connected to the primary air inlet chamber 310 is decelerated by the uniform flow of the primary air inlet chamber 310 in the burner base 300, and then the primary air is supplied from the first outer ring primary air supply hole 330 to the gas on the first outer ring fire cover 220 connected to the first outer ring mixing chamber 120, so that the primary air in this part is effectively supplemented, the gas in this part has sufficient primary air and fully burns, and the flame is stable; at the same time, the primary air is supplied from the first inner ring primary air supply hole 320 to the gas on the first inner ring fire cover 210 connected to the first inner ring mixing chamber 110, so that the primary air in this part is effectively supplemented, the gas in this part has sufficient primary air and fully burns, and the flame is stable; therefore, when the burner is working, the primary air of the burner can be fully supplemented by starting the fan 400, and the gas can be fully burned, thereby reducing smoke and improving the energy efficiency of the burner.

[0064] Embodiment 2

[0065] like Figure 7-Figure 12As shown, the burner provided in this embodiment, the gas mixing cavity includes a second inner ring gas mixing cavity, a middle ring gas mixing cavity 130 and a second outer ring gas mixing cavity 140, the fire cover includes a second inner ring fire cover 230, a middle ring fire cover 240 and a second outer ring fire cover 250 which are arranged concentrically, the second inner ring fire hole on the second inner ring fire cover 230 is connected to the second inner ring gas mixing cavity, the middle ring fire hole on the middle ring fire cover 240 is connected to the middle ring gas mixing cavity 130, the second outer ring fire hole on the second outer ring fire cover 250 is connected to the second outer ring gas mixing cavity 140, the primary air replenishment hole includes a middle ring primary air replenishment hole 340 and a second outer ring primary air replenishment hole 350, the middle ring primary air replenishment hole 340 is connected to the primary air inlet The wind cavity 310 and the middle ring air mixing cavity 130, the second outer ring primary air replenishment hole 350 connects the primary air inlet cavity 310 and the second outer ring air mixing cavity 140, and the fan 400 is connected to the primary air inlet cavity 310; the nozzle includes a second inner ring nozzle 530, a middle ring nozzle 540 and a second outer ring nozzle 550, the second inner ring nozzle 530 corresponds to the second inner ring air mixing cavity, the middle ring nozzle 540 corresponds to the middle ring air mixing cavity 130, the middle ring primary air replenishment hole 340 is located at the periphery of the middle ring nozzle 540, the second outer ring nozzle 550 corresponds to the second outer ring air mixing cavity 140, and the second outer ring primary air replenishment hole 350 is located at the periphery of the second outer ring nozzle 550.

[0066] When the burner is working, the primary air ejected by the fan 400 connected to the primary air inlet chamber 310 is decelerated by the uniform flow of the primary air inlet chamber 310 in the burner base 300, and then the primary air is supplied from the middle ring primary air supply hole 340 to the gas on the middle ring fire cover 240 connected to the middle ring mixing chamber 130, so that the primary air in this part is effectively supplemented, the gas in this part has sufficient primary air and fully burns, and the flame is stable, thereby improving the combustion efficiency of the primary air supply burner; at the same time, the second outer ring primary air supply hole 350 supplies primary air to the gas on the second outer ring fire cover 250 connected to the second outer ring mixing chamber 140, so that the primary air in this part is effectively supplemented, the gas in this part has sufficient primary air and fully burns, and the flame is stable, thereby improving the combustion efficiency of the primary air supply burner. The second inner ring fire cover 230 has a smaller load and requires less primary air. The additional primary air will cause the flame to separate at the second inner ring fire cover 230 of the burner. The required primary air can all be injected into the burner by the nozzle, so the second inner ring primary air replenishing hole is not set.

[0067] Therefore, when the burner is working, when the gas at the middle ring fire cover 240 and the second outer ring fire cover 250 of the burner is burned by starting the fan 400, sufficient primary air can be supplemented, so that the gas can be fully burned. The gas at the second inner ring fire cover 230 can be fully burned by the primary air introduced by the second inner ring nozzle 530, thereby reducing smoke, improving the energy efficiency of the burner, and effectively avoiding the flame separation phenomenon at the second inner ring fire cover 230 of the burner.

[0068] Embodiment 3

[0069] This embodiment further provides a gas cooker, comprising the burner in any of the above embodiments, which can reduce smoke and improve the combustion efficiency of the burner, thereby improving the energy consumption level of the gas cooker.

[0070] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A burner, characterized in that: include: A burner body (100), wherein the burner body (100) is provided with at least one gas mixing cavity; A fire cover, which is arranged on the burner body (100), and is provided with a plurality of fire holes, each of which is in communication with a corresponding gas mixing cavity; A burner base (300), wherein the burner base (300) is provided with a primary air inlet cavity (310) and at least one primary air replenishment hole; A fan (400), wherein an air outlet of the fan (400) is connected to the primary air inlet cavity (310), and the primary air replenishing hole is connected to the primary air inlet cavity (310) and at least one of the air mixing cavities; A nozzle is arranged on the burner base (300), the nozzle is connected to the gas pipeline, and the nozzle is used to spray the gas into the gas mixing cavity; the primary air replenishment hole is located on the periphery of the nozzle.

2. The burner according to claim 1, characterized in that The primary air replenishment hole is a U-shaped hole, or the primary air replenishment hole is a plurality of strip holes arranged in a U-shape, or the primary air replenishment hole is a plurality of round holes arranged in a U-shape.

3. The burner according to claim 1, characterized in that The spraying direction of the nozzle is the same as the ejection direction of the air in the primary air inlet cavity from the primary air replenishing hole.

4. The burner according to any one of claims 1 to 3, characterized in that: The gas mixing cavity comprises a first inner ring gas mixing cavity (110) and a first outer ring gas mixing cavity (120) which are independent of each other; The fire cover comprises a first inner ring fire cover (210) and a first outer ring fire cover (220) which are arranged concentrically, wherein a first inner ring fire hole on the first inner ring fire cover (210) is connected to the first inner ring gas mixing cavity (110), and a first outer ring fire hole on the first outer ring fire cover (220) is connected to the first outer ring gas mixing cavity (120); The primary air replenishment hole comprises a first inner ring primary air replenishment hole (320) and a first outer ring primary air replenishment hole (330), the first inner ring primary air replenishment hole (320) is connected to the primary air inlet cavity (310) and the first inner ring mixing cavity (110), the first outer ring primary air replenishment hole (330) is connected to the primary air inlet cavity (310) and the first outer ring mixing cavity (120), and the fan (400) is connected to the primary air inlet cavity (310); The nozzle includes a first inner ring nozzle (510) and a first outer ring nozzle (520), the first inner ring nozzle (510) corresponds to the first inner ring mixing cavity (110), the first inner ring primary air replenishment hole (320) is located on the periphery of the first inner ring nozzle (510), the first outer ring nozzle (520) corresponds to the first outer ring mixing cavity (120), and the first outer ring primary air replenishment hole (330) is located on the periphery of the first outer ring nozzle (520).

5. The burner according to any one of claims 1 to 3, characterized in that: The gas mixing cavity comprises a second inner ring gas mixing cavity, a middle ring gas mixing cavity (130) and a second outer ring gas mixing cavity (140) which are independent of each other; The fire cover comprises a second inner ring fire cover (230), a middle ring fire cover (240) and a second outer ring fire cover (250) which are arranged concentrically, the second inner ring fire hole on the second inner ring fire cover (230) is connected to the second inner ring gas mixing cavity, the middle ring fire hole on the middle ring fire cover (240) is connected to the middle ring gas mixing cavity (130), and the second outer ring fire hole on the second outer ring fire cover (250) is connected to the second outer ring gas mixing cavity (140); The primary air replenishment hole comprises a middle ring primary air replenishment hole (340) and a second outer ring primary air replenishment hole (350), the middle ring primary air replenishment hole (340) is connected to the primary air inlet cavity (310) and the middle ring air mixing cavity (130), the second outer ring primary air replenishment hole (350) is connected to the primary air inlet cavity (310) and the second outer ring air mixing cavity (140), and the fan (400) is connected to the primary air inlet cavity (310); The nozzle includes a second inner ring nozzle (530), a middle ring nozzle (540) and a second outer ring nozzle (550), the second inner ring nozzle (530) corresponds to the second inner ring air mixing cavity, the middle ring nozzle (540) corresponds to the middle ring air mixing cavity (130), and the second outer ring nozzle (550) corresponds to the second outer ring air mixing cavity (140); the middle ring primary air replenishment hole (340) is located at the periphery of the middle ring nozzle (540), and the second outer ring primary air replenishment hole (350) is located at the periphery of the second outer ring nozzle (550).

6. The burner according to any one of claims 1 to 3, characterized in that: The burner base (300) is provided with a primary air inlet (360), and the air outlet nozzle of the fan (400) is inserted into the primary air inlet (360).

7. A gas cooker, characterized in that: Comprising a burner as described in any one of claims 1-6.

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