Combustor and gas hob

Abstract

A burner and gas stove, relating to the field of burners, is disclosed to address the problem of incomplete combustion of gas due to insufficient primary air during combustion in existing burners. The burner includes a burner body with a mixing chamber and an air intake channel communicating with the mixing chamber; a burner cap with flame holes communicating with the mixing chamber; an ejector connected to a gas pipeline and mounted on the burner body, communicating with the burner cap through the mixing chamber; and a fan communicating with the air intake channel, driving air from the air intake channel into the mixing chamber. This application provides gas to the mixing chamber via the ejector, and simultaneously, through the coordination of the ejector, fan, and air intake channel, provides primary air to the mixing chamber to mix with the gas, thereby increasing the proportion of primary air entering the mixing chamber, resulting in more complete combustion and preventing excessive CO production during combustion.

Description

Technical Field

[0001] This application relates to the field of burners, and more particularly to a burner and a gas stove. Background Technology

[0002] When household burners operate at high heat, the combustion of gas produces a significant amount of CO, primarily due to insufficient air supply. Atmospheric gas stoves primarily supply primary air, naturally drawn in by the injector and mixed with the gas in the nozzle for combustion. The main reason for incomplete combustion and CO production is also insufficient primary air, which is inadequate to support high-heat combustion.

[0003] Chinese Patent No. CN217816895U, published on 2022-11-15, discloses a solution for a forced-draft gas stove, which includes a nozzle, an ejector, an upper air box, and an air intake power device. The air intake power device and the upper air box provide pressurized air, causing the ejector to draw in more air and increase the ratio of primary air to gas.

[0004] However, while this scheme provides a certain amount of air pressure to the ejector and increases the amount of air entering when the air intake power equipment is turned on, the air passage of the ejector itself is limited. When the burner is only burning at low load, this scheme can provide a relatively sufficient amount of primary air, making the combustion of gas more complete. However, when there are multiple ring flames or high load combustion, the ratio of primary air to gas injected by the ejector is basically stable. The pressure conflict between the primary air and the gas will still lead to insufficient primary air replenishment, and cannot effectively solve the problem of excessive CO in gas combustion. Summary of the Invention

[0005] This application provides a burner and a gas stove that injects more primary air into the gas chamber through a fan and an air intake channel, thereby making the gas combustion more complete and reducing the proportion of CO produced during gas combustion.

[0006] This application provides a burner for use in a gas stove. The burner includes: a burner body with a mixing chamber inside and an air intake channel communicating with the mixing chamber; a burner cap with multiple flame holes evenly distributed on the burner cap and communicating with the mixing chamber; an ejector for communicating with a gas delivery pipeline, the ejector being installed on the burner body and communicating with the flame holes on the burner cap through the mixing chamber; and a fan communicating with the air intake channel and driving air from the air intake channel into the mixing chamber to increase the amount of air in the mixing chamber.

[0007] In this application, the mixing chamber is connected to an ejector, which introduces fuel gas and primary air into the mixing chamber. The mixing chamber is also connected to an air intake channel, and a fan configured in the air intake channel can provide air pressure. The air pressure drives air through the air intake channel into the mixing chamber, where it mixes again with the fuel gas and air mixture in the mixing chamber. At this time, the primary air in the mixing chamber is divided into primary air introduced by the ejector and primary air injected by the fan in the air intake channel. Compared with primary air introduced by the ejector alone, the proportion of air in the mixed gas in the mixing chamber is increased, making the oxygen more complete during combustion and the combustion of the fuel gas more complete, thereby reducing the amount of CO products during combustion.

[0008] In some embodiments of this application, the mixing chamber includes multiple mutually separated sub-mixing chambers, each sub-mixing chamber is connected to an ejector, the flame cap includes multiple nested annular flame caps, each annular flame cap has multiple flame holes, the multiple flame holes on each annular flame cap are evenly distributed on the corresponding annular flame cap, the air intake channel is connected to the multiple sub-mixing chambers, the multiple sub-mixing chambers are arranged in a one-to-one correspondence with the multiple annular flame caps, and each sub-mixing chamber is connected to the flame hole on the corresponding annular flame cap.

[0009] Multiple sub-mixing chambers supply gas to corresponding annular flame caps, enabling the burner to burn multi-ring flames, thereby increasing the burner's heating efficiency and maximum heat load.

[0010] In some embodiments of this application, the multiple sub-mixing cavities include an inner mixing cavity and an outer mixing cavity, and an ejector is connected to each of the inner and outer mixing cavities respectively; the multiple annular flame caps include an inner annular flame cap and an outer annular flame cap, and the inner annular flame cap is provided with multiple inner annular flame holes, and the outer annular flame cap is provided with multiple outer annular flame holes; the multiple inner annular flame holes are connected to the inner mixing cavity, and the multiple outer annular flame holes are connected to the outer mixing cavity.

[0011] The inner and outer ring burners can form two rings of flame to heat the cookware simultaneously. At the same time, two ejectors supply gas to the inner and outer ring burners through the inner and outer mixing chambers respectively, supporting the combustion of the flames on the inner and outer ring burners.

[0012] In some embodiments of this application, the burner further includes a baffle plate disposed within the burner body. The baffle plate is located between the air intake channel and the inner mixing chamber, and between the air intake channel and the outer mixing chamber. The baffle plate has an inner connecting hole communicating with the inner mixing chamber, and an outer connecting hole communicating with the outer mixing chamber.

[0013] The inner connecting holes on the baffle plate allow the air intake channel to provide more primary air to the inner mixing chamber, while the outer connecting holes on the baffle plate allow the air intake channel to provide more primary air to the outer mixing chamber. This increases the proportion of primary air in the inner and outer mixing chambers, resulting in more complete combustion of the gas at both the inner and outer ring burners. It also reduces the CO products generated during combustion at both the inner and outer ring burners, improving the safety and combustion efficiency of the burner.

[0014] In some embodiments of this application, the axis of the inner connecting hole and the axis of the air intake channel are located in different planes; and the axis of the outer connecting hole and the axis of the air intake channel are located in different planes.

[0015] The axes of both the inner and outer connecting holes are not coplanar with the axis of the intake channel, preventing high-pressure air from directly entering one of the holes. Because the axes of both holes are not coplanar with the intake channel axis, the high-pressure air in the intake channel contacts the baffle plate before redistribution, reducing its flow velocity and facilitating the distribution of this air between the inner and outer connecting holes. Simultaneously, the lower air velocity makes the gas-fuel mixture in the inner and outer mixing chambers more stable, resulting in more stable combustion in the burner.

[0016] In some embodiments of this application, the barrier plate is provided with a plurality of internal connection holes, each of which connects the air intake channel and the internal mixing chamber. The plurality of internal connection holes are used to increase the air intake of the internal mixing chamber.

[0017] When there are multiple internal connecting holes, the gas in the intake channel can enter the internal mixing chamber through different holes, which can increase the proportion of air entering the internal mixing chamber. At the same time, setting the number of internal connecting holes to multiple can avoid the problem that air cannot enter the internal mixing chamber when one of the internal connecting holes is blocked, and can make the amount of primary air entering the internal mixing chamber from the intake channel more stable.

[0018] In some embodiments of this application, the extension direction of all the internal connecting holes is from the end near the intake channel to the end near the internal mixing chamber, and extends gradually towards the inner ring burner cap.

[0019] By gradually moving the axis of the inner connecting hole from the air intake channel to the inner mixing chamber and approaching the plane where the inner ring burner is located, the flow direction of the gas entering the inner mixing chamber can be the same as the flow direction of the original gas and air mixture in the inner mixing chamber, making the gas supply at the inner ring burner more stable, thereby making the flame combustion at the inner ring burner of the burner more stable.

[0020] In some embodiments of this application, the cross-sectional area of ​​the inner connecting hole perpendicular to its axis is smaller than the cross-sectional area of ​​the outer connecting hole perpendicular to its axis, so that the air intake of the inner mixing chamber is smaller than the air intake of the outer mixing chamber.

[0021] Because the diameter of the inner ring burner cap is smaller than that of the outer ring burner cap, the heating range of the inner ring flame on the cookware is also smaller than that of the outer ring burner cap. Therefore, the amount of primary air required by the inner mixing chamber is lower than that required by the outer mixing chamber. By setting the cross-sectional area of ​​the inner connecting hole to be smaller than that of the outer connecting hole, the distribution of primary air from the intake channel between the inner and outer mixing chambers can be more reasonable.

[0022] In some embodiments of this application, the burner further includes a gas check valve installed in the air intake passage to prevent gas in the air intake passage from flowing toward the fan.

[0023] Since the inner and outer mixing chambers are connected to the air intake channel through the inner and outer connecting holes respectively, and the air intake channel is only connected to the fan, there is a risk of gas leakage from the inner and outer mixing chambers due to backflow from the air intake channel. The gas one-way valve can prevent gas leakage and improve the safety of the burner.

[0024] This application also provides a gas stove, which includes: a housing with an internal accommodating space and a mounting base on the housing; a gas delivery pipe installed in the accommodating space of the housing and used to supply gas; a valve body assembly installed on the gas delivery pipe and used to control the on / off state of the gas delivery pipe; and a burner, which is one of the burners described above, installed on the mounting base, and the injector of the burner is connected to the gas delivery pipe.

[0025] By installing the aforementioned burner inside the gas stove, the air-to-gas ratio during combustion can better meet the requirements for complete combustion, resulting in more efficient combustion, a lower proportion of CO combustion products, and thus improved combustion efficiency. Attached Figure Description

[0026] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0027] Figure 1 This is a schematic diagram of a gas stove provided in an embodiment of this application.

[0028] Figure 2 A schematic diagram of a burner provided in an embodiment of this application.

[0029] Figure 3 A schematic diagram of a novel burner provided for an embodiment of this application.

[0030] Figure 4 This is one of the schematic diagrams of the burner body provided in the embodiments of this application.

[0031] Figure 5 This is a second schematic diagram of the burner body provided in an embodiment of this application.

[0032] Figure 6 This is one of the schematic diagrams of the mixing chamber provided in the embodiments of this application.

[0033] Figure 7 This is one of the schematic diagrams of the annular flame cap provided in the embodiments of this application.

[0034] Figure 8 This is a second schematic diagram of the annular flame cap provided in an embodiment of this application.

[0035] Figure 9 This is the third schematic diagram of the annular flame cap provided in the embodiments of this application.

[0036] Figure 10 This is a second schematic diagram of the mixing chamber provided in an embodiment of this application.

[0037] Figure 11 This is the third schematic diagram of the mixing chamber provided in the embodiments of this application.

[0038] Figure 12 This is the third schematic diagram of the burner body provided in the embodiments of this application.

[0039] Figure 13 This is a top view of the burner body provided in an embodiment of this application.

[0040] Figure 14 This is a schematic diagram of the installation of the inner and outer ring flame caps provided in an embodiment of this application.

[0041] Figure 15 Provided for the embodiments of this application Figure 12 A schematic cross-sectional view of section AA.

[0042] Figure 16 Provided for the embodiments of this application Figure 15 A magnified view of a portion of point C.

[0043] Figure 17 This is one of the schematic diagrams of the barrier plate provided in the embodiments of this application.

[0044] Figure 18 This is a second schematic diagram of the barrier plate provided in an embodiment of this application.

[0045] Figure 19This is one of the cross-sectional schematic diagrams of the barrier plate provided in the embodiments of this application.

[0046] Figure 20 Provided for the embodiments of this application Figure 13 A schematic cross-sectional view of section BB.

[0047] Figure 21 This is a second cross-sectional schematic diagram of the barrier plate provided in the embodiments of this application.

[0048] Figure 22 This is one of the schematic diagrams showing the distribution of internal connecting holes provided in an embodiment of this application.

[0049] Figure 23 This is a second schematic diagram showing the distribution of internal connecting holes provided in an embodiment of this application.

[0050] Figure 24 This is the third schematic diagram showing the distribution of internal connecting holes provided in the embodiments of this application.

[0051] Figure 25 The fourth schematic diagram of the distribution of internal connecting holes provided in the embodiments of this application.

[0052] Figure 26 This is one of the schematic diagrams showing the distribution of external connection holes provided in an embodiment of this application.

[0053] Figure 27 This is a second schematic diagram showing the distribution of external connection holes provided in an embodiment of this application.

[0054] Figure 28 This is the third schematic diagram showing the distribution of external connection holes provided in the embodiments of this application.

[0055] Figure 29 The fourth schematic diagram shows the distribution of external connection holes provided in the embodiments of this application.

[0056] Figure 30 This is the third cross-sectional schematic diagram of the barrier plate provided in the embodiments of this application.

[0057] Figure 31 This is one of the schematic diagrams showing the distribution relationship between the internal and external connecting holes provided in the embodiments of this application.

[0058] Figure 32 This is the second schematic diagram showing the distribution relationship between the internal and external connecting holes provided in the embodiments of this application.

[0059] Figure 33 Provided for the embodiments of this application Figure 20 A magnified view of a portion of point D.

[0060] Figure 34 This is a schematic diagram showing the connection relationship between the fan and the air intake channel provided in an embodiment of this application.

[0061] Figure 35 This is a schematic diagram showing the installation position of the gas check valve provided in an embodiment of this application.

[0062] Figure 36 This is one of the schematic diagrams of a new gas stove provided in the embodiments of this application.

[0063] Figure 37 This is a second schematic diagram of a new gas stove provided in an embodiment of this application.

[0064] Reference numerals: 1-Burner; 11-Burner body; 111-First part; 112-Second part; 113-Third part; 114-Fourth part; 12-Flame cap; 121-Flame hole; 1211-Inner ring flame hole; 1212-Outer ring flame hole; 122-Annular flame cap; 1221-First annular flame cap; 1222-Second annular flame cap; 1223-Inner ring flame cap; 1224-Outer ring flame cap; 13-Ejector; 14-Mixing chamber; 141-First chamber; 142-Second chamber; 143-Sub-mixing chamber; 144-Inner mixing chamber; 145-Outer mixing chamber; 15-Intake passage; 151-Intake sub-passage; 16-Fan; 17-Baffle plate; 171-Inner connecting hole; 172-Outer connecting hole; 2-Shell; 21-Mounting base; 3-Valve body assembly; 4-Gas delivery pipeline. Detailed Implementation

[0065] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0066] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0067] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0069] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0070] Please refer to Figure 1 A gas stove includes a housing 2, a valve body assembly 3, a gas delivery pipe 4, and a burner 1. The gas delivery pipe 4 is installed inside the housing 2 and is used to supply gas to the burner 1. The valve body assembly 3 is installed on the gas delivery pipe 4 and is used to control the on / off state of the gas delivery pipe 4. A mounting base 21 is provided inside the housing 2, and the burner 1 is installed on the mounting base 21.

[0071] Please refer to Figure 2 The burner 1 includes a burner body 11, a flame cap 12 and an ejector 13. A mixing chamber 14 is provided inside the burner body 11. A flame hole 121 is provided on the flame cap 12. The ejector 13 is installed on the burner body 11. The ejector 13 is connected to the flame hole 121 through the mixing chamber 14. The other end of the ejector 13 is connected to the gas delivery pipe 4.

[0072] Please continue to refer to Figure 1 and Figure 2 The ejector 13 ejects the gas in the gas delivery pipe 4 and the outside air (i.e., primary air) into the mixing chamber 14. After being mixed in the mixing chamber 14, the gas is delivered to the burner cap 12, flows out at the burner hole 121 and is ignited. When the gas in the burner 1 burns at the burner hole 121, it will come into contact with the air at the burner hole 121 (i.e., secondary air). Whether the gas is fully burned depends on the ratio of primary air, secondary air and gas.

[0073] However, when the burner 1 is burning, the amount of primary air ejected by the ejector 13 is fixed. This amount of primary air can meet the combustion needs of the burner 1 at low power. When the gas in the burner 1 is burning at higher power, the primary and secondary air provided by this type of burner 1 cannot meet the requirements for complete combustion of the gas. Therefore, the gas in the burner 1 will produce more CO when burning. This phenomenon is more prominent in burners 1 with multiple flame changes.

[0074] Please refer to Figure 3 To achieve more complete combustion of gas and reduce the proportion of CO in the combustion products, this application provides a new burner for use in gas stoves. The burner 1 includes: a burner body 11, with a mixing chamber 14 inside the burner body 11, and an air intake channel 15 communicating with the mixing chamber 14; a burner cap 12, with multiple flame holes 121 evenly distributed on the burner cap 12, and the flame holes 121 communicating with the mixing chamber 14; an ejector 13, which is connected to a gas delivery pipe 4, is installed on the burner body 11, and the ejector 13 and the flame holes 121 on the burner cap 12 are connected through the mixing chamber 14; and a fan 16, which is connected to the air intake channel 15 and drives the air in the air intake channel 15 into the mixing chamber 14 to increase the amount of air in the mixing chamber 14.

[0075] The mixing chamber 14 is equipped with an ejector 13, which can introduce gas into the mixing chamber 14 and eject the primary air outside the ejector 13. The mixing chamber 14 is connected to the air intake channel 15. The fan 16 in the air intake channel 15 can provide air pressure for the air intake channel 15. The air pressure in the air intake channel 15 can make air enter the mixing chamber 14 through the air intake channel 15 and mix again with the gas mixture of gas and primary air in the mixing chamber 14.

[0076] At this time, the primary air in the mixing chamber 14 is divided into primary air ejected by the ejector 13 and primary air injected by the fan 16 in the air intake channel 15. Compared with using the ejector 13 alone to eject primary air into the mixing chamber 14, the proportion of primary air in the mixed gas in the mixing chamber 14 is increased, so that the air ratio is higher when the gas is burned, the gas is burned more completely, thereby reducing the amount of CO products during gas combustion and improving the combustion efficiency of the burner 1.

[0077] Please refer to Figure 4In some examples, the burner body 11 includes a first part 111, a second part 112, and a third part 113 disposed on the burner body 11 from bottom to top. The mixing chamber 14 includes a first cavity 141 communicating with the ejector 13. The first cavity 141 is opened in the first part 111 of the burner body 11. The mixing chamber 14 also includes a second cavity 142, which is directly connected to the first cavity 141 and directly connected to the flame port 121. The second cavity 142 is formed by connecting the inner cavities of the second part 112 and the third part 113 in the burner body 11, and is a combined cavity.

[0078] Please refer to Figure 5 At this point, the first part 111 is the base of the burner body 11, the second part 112 is the connecting part of the burner body 11, and the third part 113 is the upper burner cap 12 of the burner body 11. The burner body 11 may also include a fourth part 114, which can be installed between the second part 112 and the third part 113. The fourth part 114 serves as a conductive part, simultaneously sealingly connecting the second part 112 and the third part 113, improving the sealing performance of the burner 1, preventing gas leakage, and making the installation and use of the burner 1 more convenient. At this point, the ejector 13 is installed on the first part 111 of the burner body 11. Simultaneously, the air intake passage 15 is preferably located on the first part 111 of the burner body 11.

[0079] When the intake passage 15 is opened into the first part 111 of the burner body 11, it is directly connected to the first chamber 141 of the mixing chamber 14. At this time, the gas that has already been mixed with the primary air ejected by the ejector 13 is mixed again with the primary air introduced into the intake passage 15 in the first chamber 141. The gas that has been mixed with primary air twice flows through the second chamber 142 to the burner hole 121 and is ignited. When the primary air ejected by the ejector 13 mixes with the gas, it will cause fluctuations in the gas flow. When the primary air in the intake passage 15 enters the first chamber 141, it will also cause fluctuations in the gas flow.

[0080] At this time, the distance between the first cavity 141 and the burner hole 121 is relatively far. Under the condition that the air intake channel 15 is directly connected to the first cavity 141, on the one hand, it can avoid the primary air in the air intake channel 15 from entering the mixing chamber 14 and affecting the stable combustion of the flame at the burner hole 121, thereby making the flame on the burner cap 12 burn more stably and safely. On the other hand, the primary air can be mixed with the gas that has already been mixed with the primary air through the second cavity 142. The gas travels a longer distance when flowing in the second cavity 142, which can make the two mix more fully and avoid uneven distribution of gas and primary air. More uniform mixing of gas and primary air can make the gas burn more fully, the combustion efficiency higher, and reduce the proportion of CO products.

[0081] In some examples, the fourth part 114 can also be installed between the first part 111 and the second part 112. In this case, the air intake passage 15 can be located within the first part 111 or on the fourth part 114. When the air intake passage 15 is located on the fourth part 114, since the fourth part 114 serves as a conductive connection, its volume is much smaller than that of the first part 111. This makes the manufacture of the air intake passage 15 easier, while still satisfying the function of supplementing more primary air into the mixing chamber 14 through the air intake passage 15, thereby enabling more complete combustion and higher combustion efficiency of the combustion gas in the burner 1.

[0082] Please refer to Figure 6 Based on this, the mixing chamber 14 includes multiple mutually separated sub-mixing chambers 143, each sub-mixing chamber 143 being connected to an ejector 13. The flame cap 12 includes multiple nested annular flame caps 122, each annular flame cap 122 having multiple flame holes 121. The flame holes 121 on each annular flame cap 122 are evenly distributed on the corresponding annular flame cap 122. The air intake channel 15 is connected to all the multiple sub-mixing chambers 143. The multiple sub-mixing chambers 143 are arranged one-to-one with the multiple annular flame caps 122, and each sub-mixing chamber 143 is connected to the flame hole 121 on the corresponding annular flame cap 122. Please refer to... Figure 6 and Figure 7 By dividing the mixing chamber 14 into multiple sub-mixing chambers 143 and setting the burner cap 12 into multiple annular burner caps 122, the sub-mixing chambers 143 and the annular burner caps 122 correspond one-to-one, and provide gas to the flame holes 121 on their respective burner caps 12. This allows the gas in the burner 1 to form a multi-ring flame during combustion, thereby increasing the maximum heat load of the burner 1 and accelerating the heating efficiency of the cookware.

[0083] Please continue to refer to Figures 5-7 In some examples, each sub-mixing chamber 143 includes a first mixing chamber 14 and a second mixing chamber 14, and each sub-mixing chamber 143 is connected to an ejector 13. The ejector 13 on each sub-mixing chamber 143 supplies gas and primary air to the different mixing chambers 14, causing the gas and primary air to mix within the first mixing chamber 14. During the mixing process, the gas simultaneously flows to the second mixing chamber 14 and exits through the flame hole 121 of the corresponding annular burner cap 122 of the sub-mixing chamber 143, where it is ignited to form a circular flame. Multiple annular burner caps 122 can be nested together to combine the circular flames on all annular burner caps 122 into a multi-ring flame, thereby increasing the heating speed of the cookware.

[0084] Please continue to refer to Figure 7In some examples, the multiple annular flame caps 122 include multiple annular flame caps 122 with different diameters, and all annular flame caps 122 are fitted onto the same axis. Figure 7 On L1 (as shown in the diagram), all the annular flame caps 122 are arranged outwards in ascending order of size. All the annular flame caps 122 are fitted onto the same axis (as shown in the diagram). Figure 7 As shown in L1), all the flames can be arranged sequentially outward from the center of the pot, so that the annular flames burning on the multiple annular burner caps 122 can evenly heat the pot.

[0085] Please refer to Figure 8 In some examples, the plurality of annular flame caps 122 include a plurality of first annular flame caps 1221 with different diameters and second annular flame caps 1222 with the same diameter as a portion of the first annular flame caps 1221, wherein the plurality of first annular flame caps 1221 are along the same axis. Figure 8 As shown, L1) is arranged in order of increasing diameter, and the second annular flame cap 1222 is distributed on the plane where the first annular flame cap 1221 is located.

[0086] Please refer to Figure 9 In some examples, the plurality of annular flame caps 122 include several groups of first annular flame caps 1221, each group of first annular flame caps 1221 along the axis of that group ( Figure 9 As shown in the diagram (L1), multiple sets of annular burner caps 122 are independently distributed on the same plane. This installation method allows the annular burner caps 122 to provide better heating for special cookware, such as triangular-bottomed pans or flat-bottomed pans.

[0087] In the above example, each annular burner cap 122 corresponds to a sub-mixing chamber 143, and the air intake passage 15 is connected to different sub-mixing chambers 143. Under the heating conditions of the multi-ring burner cap 12, the air intake passage 15 is connected to each sub-mixing chamber 143, which allows the combustion of the gas on each annular burner cap 122 to be more complete.

[0088] Please refer to Figure 10 In some examples, the burner body 11 is provided with multiple air intake channels 15, which correspond one-to-one with multiple sub-mixing chambers 143, so as to provide more primary air to each sub-mixing chamber 143.

[0089] Please refer to Figure 11In some examples, an air intake channel 15 is provided inside the burner body 11, and multiple air intake sub-channels 151 are also provided inside the burner body 11. The multiple air intake sub-channels 151 correspond one-to-one with and are connected to multiple sub-mixing chambers 143. Primary air is provided to the multiple air intake sub-channels 151 through the air intake channel 15. This can make the distribution of primary air more reasonable while ensuring that the air intake channel 15 provides primary air to the sub-mixing chambers 143, and also make the layout of the air intake channel 15 more reasonable.

[0090] Please refer to Figure 12 Based on this, multiple sub-mixing chambers 143 include an inner mixing chamber 144 and an outer mixing chamber 145, with an ejector 13 connected to each of the inner and outer mixing chambers 144 and 145 respectively; multiple annular flame caps 122 include an inner annular flame cap 1223 and an outer annular flame cap 1224, with multiple inner annular flame holes 1211 on the inner annular flame cap 1223 and multiple outer annular flame holes 1212 on the outer annular flame cap 1224; the multiple inner annular flame holes 1211 are connected to the inner mixing chamber 144, and the multiple outer annular flame holes 1212 are connected to the outer mixing chamber 145. When the sub-mixing chamber 143 includes an inner mixing chamber 144 and an outer mixing chamber 145, the inner mixing chamber 144 and the outer mixing chamber 145 respectively provide fuel gas to the inner annular flame holes 1211 and the outer annular flame holes 1212 through an ejector 13. By using the above method, burner 1 can emit two rings of flame during combustion, which can achieve a faster and more even heating effect on the cookware.

[0091] Please refer to Figure 13 In some examples, the inner ring burner cap 1223 and the outer ring burner cap 1224 are coaxially arranged. The coaxial arrangement of the inner ring burner cap 1223 and the outer ring burner cap 1224 can make the flames of both evenly distributed, so as to heat the cookware more evenly.

[0092] Please refer to Figure 14 In some examples, the inner ring burner cap 1223 and the outer ring burner cap 1224 are not coaxially arranged. The heating center of gravity of the non-coaxial inner ring burner cap 1223 and outer ring burner cap 1224 is located in the inner ring burner cap 1223, which can achieve better heating effect for specially shaped cookware that requires eccentric heating.

[0093] Please refer to Figure 15In addition, the burner 1 also includes a baffle plate 17, which is disposed within the burner body 11. The baffle plate 17 is located between the air intake channel 15 and the inner mixing chamber 144, and between the air intake channel 15 and the outer mixing chamber 145. The baffle plate 17 has an inner connecting hole 171 communicating with the inner mixing chamber 144, and an outer connecting hole 172 communicating with the outer mixing chamber 145. The inner connecting hole 171 and the outer connecting hole 172 on the baffle plate 17 communicate with the inner mixing chamber 144 and the outer mixing chamber 145, respectively. The inner connecting hole 171 allows the air intake channel 15 to provide more primary air to the inner mixing chamber 144, and the outer connecting hole 172 allows the air intake channel 15 to provide more primary air to the outer mixing chamber 145. The inner mixing chamber 144 can supply gas to the inner ring burner hole 1211 on the inner ring burner cap 1223, and the outer mixing chamber 145 can supply gas to the outer ring burner cap 1224. In this way, the gas at the inner ring burner hole 1211 and the outer ring burner hole 1212 can be burned more completely, reducing the proportion of CO products generated by the combustion of gas in the burner 1 and improving the overall combustion efficiency of the burner 1.

[0094] Please continue to refer to Figure 15 In some examples, one side of the baffle plate 17 is the air intake channel 15, and the other side is the inner mixing chamber 144 and the outer mixing chamber 145. The baffle plate 17 is located between the inner mixing chamber 144, the outer mixing chamber 145, and the air intake channel 15. The baffle plate 17 is formed inside the burner body 11 and is integrally cast with the burner body 11. This method makes the manufacturing and forming of the baffle plate 17 more convenient.

[0095] Please refer to Figure 16 In some examples, the baffle plate 17 is arc-shaped, with the inner side of the arc facing the air intake channel 15. When the air pressure in the air intake channel 15 comes into contact with the baffle plate 17, the arc-shaped baffle plate 17 can effectively disperse the airflow, thereby facilitating the airflow to be distributed into the inner mixing chamber 144 or the outer mixing chamber 145 through the inner connecting hole 171 or the outer connecting hole 172.

[0096] Please refer to Figure 17 In some examples, a cylindrical distribution cavity is formed within the baffle plate 17. The distribution cavity is directly connected to the air intake channel 15 and is also connected to the inner connecting hole 171 and the outer connecting hole 172. Gas in the air intake channel 15 enters the distribution cavity and then distributes primary air to the inner connecting hole 171 and the outer connecting hole 172 through the distribution cavity. The cylindrical shape of the distribution cavity allows the gas entering the distribution cavity from the air intake channel 15 to be buffered by the inner wall of the cylindrical distribution cavity, thereby rationally distributing the primary air entering the inner mixing cavity 144 and the outer mixing cavity 145.

[0097] Please refer to Figure 18 In some examples, the side of the baffle plate 17 that contacts the intake passage 15 is flat. This makes the processing of the baffle plate 17 easier and less difficult.

[0098] Please refer to Figure 19 Based on this, the axis of the inner connecting hole 171 ( Figure 19 The axis of L2 shown in the diagram is parallel to the axis of the intake passage 15. Figure 19 The L4 shown in the diagram is located in different planes; and the axis of the external connecting hole 172 ( Figure 19 The axis of L3 shown in the diagram is perpendicular to the axis of the intake passage 15. Figure 19 The L4 shown in the diagram has its annular flame caps located in different planes. The axis of the intake passage 15 here ( Figure 19 L4 in the diagram refers only to the direction of the air intake passage 15 extending near the baffle plate 17, that is, the direction in which the airflow in the air intake passage 15 flows into the baffle plate 17.

[0099] The axis of the inner connecting hole 171 ( Figure 19 The axis of L2 and the external connecting hole 172 shown in the figure ( Figure 19 The axis of L3 shown in the diagram is perpendicular to the axis of the intake passage 15. Figure 19 As shown, L4) is not coplanar, which can prevent the gas in the intake channel 15 from encountering the baffle plate 17. Because it is coplanar with the inner connecting hole 171 or the outer connecting hole 172, the air pressure would directly force a large amount of the primary air replenished in the intake channel 15 into the inner connecting hole 171 or the outer connecting hole 172, resulting in an unreasonable distribution of primary air ratio in the inner mixing chamber 144 and the outer mixing chamber 145. In this way, when the high-pressure primary air in the intake channel 15 comes into contact with the baffle plate 17, it first comes into contact with the plate wall of the baffle plate 17. The plate wall of the baffle plate 17 buffers the air pressure, and then the airflow flows through the baffle plate 17 into the inner connecting hole 171 or the outer connecting hole 172 respectively, achieving a more reasonable distribution.

[0100] Please refer to Figure 20 In some examples, the intake passage 15 is formed on the burner body 11, and the axis of the intake passage 15 ( Figure 20 As shown in the diagram, L4) is a straight line. This method facilitates the machining of the intake channel 15.

[0101] Please refer to Figure 21 In some examples, the intake passage 15 is formed on the burner body 11, and the axis of the intake passage 15 ( Figure 21 L4 shown in the diagram is a curve. Passing through the axis ( Figure 21As shown in the figure, L4) is a curved air intake channel 15, which can buffer the primary air in the air intake channel 15 when it flows in, reduce its flow rate, and avoid the problem that the primary air enters the inner mixing chamber 144 or the outer mixing chamber 145 at too high speed, causing gas fluctuations in the inner mixing chamber 144 or the outer mixing chamber 145 and resulting in flame instability.

[0102] Please refer to Figure 22 Based on this, the baffle plate 17 has multiple internal connection holes 171, each of which connects to the air intake channel 15 and the internal mixing chamber 144. The multiple internal connection holes 171 are used to increase the air intake of the internal mixing chamber 144. The simultaneous connection of multiple internal connection holes 171 to the internal mixing chamber 144 can, on the one hand, avoid obstacles to primary air supply when a single internal connection hole 171 is blocked, ensuring that primary air can be smoothly supplied to the internal mixing chamber 144. On the other hand, the simultaneous supply of primary air to the mixing chamber 14 through multiple internal connection holes 171 can change the primary air that originally needed to be supplied to the internal mixing chamber 144 from a single stream to multiple streams. This not only reduces the flow rate of the supplied primary air, but also allows the dispersed primary air to mix more quickly with the already mixed combustion gas and primary air in the internal mixing chamber 144, making the primary air and combustion gas mix more evenly, and thus making the flame combustion more stable.

[0103] Please continue to refer to Figure 22 In some examples, the axis of the inner connecting hole 171 ( Figure 22 L2 in the diagram is a straight line. The axis ( ) is machined on the barrier plate 17. Figure 22 When L2) is a straight line, the inner connecting hole 171 is easier to process and less difficult to process, which can reduce processing costs and improve processing efficiency.

[0104] Please refer to Figure 23 In some examples, the axis of the inner connecting hole 171 ( Figure 23 L2 shown in the figure is a curve, and the axis of the inner connecting hole 171 is ( Figure 22 When L2 is a curve, the flow rate of primary air entering the inner mixing chamber 144 can be reduced, avoiding fluctuations in the gas in the inner mixing chamber 144, making the gas more stable, and thus making the flame more stable.

[0105] Please refer to Figure 24 Based on this, the extension direction of all internal connecting holes 171 ( Figure 24 As shown in the diagram (L2), each end extends from the end near the intake passage 15 towards the end near the inner mixing chamber 144, gradually approaching the inner ring burner cap 1223. The direction closer to the inner ring burner cap 1223 refers to the plane closest to the inner ring burner cap 1223. Figure 24(M1 shown in the diagram). This method ensures that the primary air in the inner connecting hole 171 flows in the same direction as the gas flow in the inner mixing chamber 144 when it enters, preventing conflict between the primary air flow and the gas flow in the inner mixing chamber 144 and making the gas flow in the inner mixing chamber 144 more stable. Simultaneously, when the gas flow direction in the inner mixing chamber 144 is the same as the gas outlet direction of the inner connecting hole 171, the gas flow in the inner mixing chamber 144 creates a negative pressure in the inner connecting hole 171, facilitating the entry of primary air from the inner connecting hole 171 into the inner mixing chamber 144 and preventing conflict between the primary air in the inner connecting hole 171 and the gas originally in the inner mixing chamber 144.

[0106] In some examples, when the axis of the inner connecting hole 171 is a straight line or a curve, the axis of all the inner connecting holes 171 gradually approaches the plane where the inner ring burner cap 1223 is located from the air intake passage 15 to the inner mixing chamber 144. Regardless of whether the axis of the inner connecting hole 171 is a straight line or a curve, the above-mentioned effect of generating negative pressure in the inner connecting hole 171 when the combustion gas flows in the inner mixing chamber 144 can be achieved, which facilitates the entry of primary air in the inner connecting hole 171 into the inner mixing chamber 144.

[0107] Please refer to Figure 25 In some examples, the multiple inner connecting holes 171 include multiple first inner connecting holes 171 and multiple second inner connecting holes 171. The axes of the multiple first inner connecting holes 171 are all straight lines, and the axes of the multiple second inner connecting holes 171 are all curves. The multiple first inner connecting holes 171 are disposed inside the multiple second inner connecting holes 171. This arrangement allows the primary air entering the inner mixing chamber 144 to have different flow velocities, thereby enabling the primary air with different flow velocities to quickly contact the combustion gas in different areas of the mixing chamber 14, thus achieving rapid mixing.

[0108] Please refer to Figure 26 Based on this, the baffle plate 17 has multiple external connection holes 172, each of which connects to the air intake channel 15 and the external mixing chamber 145. The multiple external connection holes 172 are used to increase the air intake of the external mixing chamber 145. The simultaneous connection of multiple external connection holes 172 to the external mixing chamber 145 can, on the one hand, avoid obstacles to primary air supply when a single external connection hole 172 is blocked, ensuring that primary air can be smoothly supplied to the external mixing chamber 145. On the other hand, the simultaneous supply of primary air to the mixing chamber 14 through multiple external connection holes 172 can change the primary air that originally needed to be supplied to the external mixing chamber 145 from a single stream to multiple streams. This not only reduces the flow rate of the supplied primary air, but also allows the dispersed primary air to mix more quickly with the already mixed fuel gas and primary air in the external mixing chamber 145, making the primary air and fuel gas mix more evenly, and thus making the flame combustion more stable.

[0109] Please continue to refer to Figure 26 In some examples, the axis of the external connecting hole 172 ( Figure 26 L3 in the diagram is a straight line. The axis ( ) is machined on the barrier plate 17. Figure 26 When L3) is a straight line, the external connecting hole 172 is easier to process and less difficult to process, which can reduce processing costs and improve processing efficiency.

[0110] Please refer to Figure 27 In some examples, the axis of the external connecting hole 172 ( Figure 27 L3 shown in the figure is a curve, and the axis of the external connecting hole 172 is ( Figure 27 When L3 is a curve as shown in the figure, the flow rate of primary air entering the outer mixing chamber 145 can be reduced, avoiding fluctuations in the gas in the outer mixing chamber 145, making the gas more stable, and thus making the flame more stable.

[0111] Please refer to Figure 28 Based on this, the extension direction of all external connecting holes 172 ( Figure 28 As shown in the diagram (L3), each end extends from the end near the intake passage 15 to the end near the outer mixing chamber 145, gradually approaching the outer ring burner 1224. The direction approaching the outer ring burner 1224 refers to the plane closest to the outer ring burner 1224. Figure 28 (M3 shown in the diagram). This method ensures that the primary air in the external connection hole 172 flows in the same direction as the gas flow in the external mixing chamber 145 when it enters, preventing conflict between the primary air flow and the gas flow in the external mixing chamber 145 and making the gas flow in the external mixing chamber 145 more stable. Simultaneously, when the gas flow direction in the external mixing chamber 145 is the same as the gas outlet direction of the external connection hole 172, the gas flow in the external mixing chamber 145 creates a negative pressure in the external connection hole 172, facilitating the entry of primary air from the external connection hole 172 into the external mixing chamber 145 and preventing conflict between the primary air in the external connection hole 172 and the gas originally in the external mixing chamber 145.

[0112] In some examples, when the axis of the outer connecting hole 172 is a straight line or a curve, the axes of all the inner connecting holes 171 gradually approach the plane where the inner ring burner cap 1223 is located from the air intake passage 15 to the inner mixing chamber 144. Regardless of whether the axis of the outer connecting hole 172 is a straight line or a curve, the above-mentioned effect of generating negative pressure in the outer connecting hole 172 when the combustion gas flows in the outer mixing chamber 145 can be achieved, facilitating the entry of primary air from the outer connecting hole 172 into the outer mixing chamber 145.

[0113] Please refer to Figure 29In some examples, the plurality of external connection holes 172 include a plurality of first external connection holes 172 and a plurality of second external connection holes 172. The axes of the plurality of first external connection holes 172 are all straight lines, and the axes of the plurality of second external connection holes 172 are all curves. The plurality of first external connection holes 172 are disposed inside the plurality of second external connection holes 172. This arrangement allows the primary air entering the external mixing chamber 145 to have different flow velocities, thereby enabling the primary air with different flow velocities to come into rapid contact with the combustion gas in different areas of the mixing chamber 14, thus achieving rapid mixing.

[0114] Please refer to Figure 30 Based on this, when the barrier plate 17 is adjacent to the inner mixing cavity 144 but far from the outer mixing cavity 145, the length of the inner connecting hole 171 is much smaller than the length of the outer connecting hole 172. In this case, preferably, there are multiple inner connecting holes 171 and only one outer connecting hole 172. This method facilitates the manufacturing of the inner connecting holes 171 and the outer connecting holes 172, reducing production costs.

[0115] In some examples, when the barrier plate 17 is adjacent to the outer mixing cavity 145 but far from the inner mixing cavity 144, it is preferable to have one inner connecting hole 171 and multiple outer connecting holes 172.

[0116] Based on this, when the baffle plate 17 is adjacent to the inner mixing chamber 144 but far from the outer mixing chamber 145, the cross-sectional area of ​​the inner connecting hole 171 perpendicular to its axis is smaller than the cross-sectional area of ​​the outer connecting hole 172 perpendicular to its axis, so that the air intake of the inner mixing chamber 144 is less than the air intake of the outer mixing chamber 145. Since the diameter of the inner ring burner cap 1223 is smaller than the diameter of the outer ring burner cap 1224, the heating range of the inner ring flame on the cookware is also smaller than the heating range of the outer ring burner cap 1224 on the cookware. Therefore, the amount of gas introduced into the inner mixing chamber 144 is lower than the amount of gas introduced into the outer mixing chamber 145, and the amount of primary air required by the inner mixing chamber 144 is also lower than the amount of primary air required by the outer mixing chamber 145. By setting the cross-sectional area of ​​the inner connecting hole 171 to be smaller than the cross-sectional area of ​​the outer connecting hole 172, the distribution of primary air from the intake channel 15 between the inner mixing chamber 144 and the outer mixing chamber 145 can be more reasonable.

[0117] Please continue to refer to Figure 21 In some examples, when there is one inner connecting hole 171 and one outer connecting hole 172, the diameter of the inner connecting hole 171 is smaller than the diameter of the outer connecting hole 172. In this way, the amount of primary air allocated by the inner connecting hole 171 is lower than the amount of primary air allocated by the outer connecting hole 172, so as to meet the different gas requirements of the inner mixing chamber 144 and the outer mixing chamber 145.

[0118] Please continue to refer to Figure 30 In some examples, there are multiple inner connecting holes 171 and one outer connecting hole 172. In this case, the diameter of each inner connecting hole 171 should be much smaller than the diameter of the outer connecting hole 172, and the sum of the cross-sectional areas of all the inner connecting holes 171 should also be smaller than the cross-sectional area of ​​the outer connecting hole 172, so that the primary air supplied in the intake channel 15 can be reasonably distributed to the inner mixing chamber 144 and the outer mixing chamber 145.

[0119] In some examples, the sum of the cross-sectional areas of all the inner connecting holes 171 is less than the sum of the cross-sectional areas of all the outer connecting holes 172, and the ratio of the sum of the cross-sectional areas of all the inner connecting holes 171 to the sum of the cross-sectional areas of all the outer connecting holes 172 is between 2:1 and 4:1, preferably 3.2:1. This arrangement allows the gas in the outer mixing chamber 145 and the gas in the inner mixing chamber 144 to be mixed with air in similar proportions, resulting in more complete combustion of the gas in both chambers.

[0120] When the existing ejector 13 ejects primary air and fuel gas, the primary air coefficient is about 0.6. By using the above-mentioned ratio of 3.2:1, the primary air ratio in both the inner mixing chamber 144 and the outer mixing chamber 145 can reach about 0.65, so that the fuel gas can be burned more completely, while preventing excessive air from reducing the flame combustion power.

[0121] Please refer to Figure 31 Based on this, when there is only one inner connecting hole 171 and one outer connecting hole 172, the inner connecting hole 171 and the outer connecting hole 172 are coplanar. By making the inner connecting hole 171 and the outer connecting hole 172 coplanar, it is easier to process and shape the inner connecting hole 171 and the outer connecting hole 172. At the same time, it is easier for the inner mixing chamber 144 and the outer mixing chamber 145 to form stable air pressure at the inner connecting hole 171 and the outer connecting hole 172 respectively, so that the air flow inside is smoother.

[0122] Please refer to Figure 32 In some examples, there are multiple inner connecting holes 171, but these multiple inner connecting holes 171 are coplanar and coplanar with the outer connecting holes 172. In this way, the inner connecting holes 171 and the outer connecting holes 172 can achieve the effect of the inner mixing chamber 144 and the outer mixing chamber 145 respectively forming a stable air pressure at the inner connecting holes 171 and the outer connecting holes 172, while reducing the air pressure in each inner connecting hole 171, and making the primary air entering the inner mixing chamber 144 more dispersed and easier to mix.

[0123] Please refer to Figure 33Based on this, the fan 16 is installed on the outside of the burner 1, and the air outlet of the fan 16 is connected to the air inlet channel to provide air pressure towards the inside of the burner body 11 for the air inlet channel.

[0124] Please continue to refer to Figure 33 In some examples, a gap is left between the outer wall of the air outlet of the fan 16 and the air inlet channel 15. This facilitates the installation between the air outlet of the fan 16 and the air inlet channel 15.

[0125] Please refer to Figure 34 In some examples, the outer wall gap of the air outlet of the fan 16 is installed inside the air intake channel 15, and a sealing plug is also installed between the outer wall of the air outlet of the fan 16 and the air intake channel 15. Through the sealing effect of the sealing plug, the pressurized airflow provided by the fan 16 can be fully utilized, preventing the airflow from overflowing outside the air intake channel 15 through other gaps.

[0126] Please refer to Figure 35 In addition, the burner 1 also includes a gas check valve, which is installed in the air intake passage 15 to prevent gas in the air intake passage 15 from flowing toward the fan 16. The gas check valve can prevent gas in the inner mixing chamber 144 or the outer mixing chamber 145 from leaking out of the air intake passage 15 when the fan 16 is not turned on or is damaged, making the use of the burner 1 safer.

[0127] Please continue to refer to Figure 35 In some examples, the gas check valve is installed at the end of the air outlet of the fan 16 and inside the air intake passage 15. This installation method not only prevents the gas from flowing back from the air intake passage 15, but also ensures good sealing of the air intake passage 15, allowing more air supplied in the air intake passage 15 to be used for gas combustion and improving air utilization.

[0128] In some examples, the inner wall of the air intake channel 15 is spiral-shaped. The spiral shape of the air intake channel 15 facilitates air intake and provides some resistance to backflow of gas. While preventing backflow of gas, it also allows the air entering the air intake channel 15 to enter in a spiral shape, making the gas more thoroughly dispersed when it comes into contact with the baffle plate 17, and making it easier for the gas to enter from the inner connecting hole 171 or the outer connecting hole 172.

[0129] Please refer to Figure 36A gas stove includes: a housing 2 with an internal accommodating space and a mounting base 21; a gas delivery pipe 4 installed within the accommodating space of the housing 2, used to supply gas; a valve body assembly 3 installed on the gas delivery pipe 4 for controlling the on / off state of the gas delivery pipe 4; and a burner 1, which is one of the aforementioned burners, installed on the mounting base 21, with its ejector 13 connected to the gas delivery pipe 4. By installing the aforementioned burner 1 inside the gas stove, the air-to-gas ratio during combustion can better meet the requirements for complete combustion, resulting in more efficient combustion, a lower proportion of combustion product CO, and thus improved combustion efficiency.

[0130] Please continue to refer to Figure 36 In some examples, the housing 2 is provided with two mounting bases 21, each of which is provided with a burner 1. Two pots can be heated simultaneously by the two burners 1.

[0131] Please refer to Figure 37 In some examples, the housing 2 is provided with two or more mounting bases 21, and each mounting base 21 is provided with a burner 1. Two or more pots can be heated at the same time by means of two burners 1, which can meet the needs of heating multiple pots at the same time.

[0132] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0133] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A burner, applied to a gas stove, characterized in that, The burner includes: The burner body has a mixing chamber inside and an air intake passage communicating with the mixing chamber. A flame cap, wherein a plurality of flame holes are provided on the flame cap, the plurality of flame holes being evenly distributed on the flame cap, and the flame holes being connected to the mixing chamber; An ejector, which is used to communicate with a gas delivery pipeline, is installed on the burner body and is connected to the flame hole on the burner cap through the mixing chamber; A fan is connected to the air intake channel and is used to drive the air in the air intake channel into the mixing chamber to increase the amount of air in the mixing chamber. The mixing chamber includes multiple mutually separated sub-mixing chambers, and the multiple sub-mixing chambers include an inner mixing chamber and an outer mixing chamber; The burner also includes a baffle plate disposed within the burner body, the baffle plate being located between the air intake channel and the inner mixing chamber, and the baffle plate being located between the air intake channel and the outer mixing chamber; The barrier plate has an inner connecting hole that communicates with the inner mixing cavity, and the barrier plate also has an outer connecting hole that communicates with the outer mixing cavity. The axis of the inner connecting hole and the axis of the air intake channel are located in different planes. Furthermore, the axis of the external connecting hole and the axis of the air intake channel are located in different planes.

2. A burner according to claim 1, characterized in that, Each of the sub-mixing chambers is connected to an ejector. The flame cap includes multiple nested annular flame caps, each annular flame cap having multiple flame holes. The multiple flame holes on each annular flame cap are evenly distributed on the corresponding annular flame cap. The air intake channel is connected to the multiple sub-mixing chambers. The multiple sub-mixing chambers are arranged in a one-to-one correspondence with the multiple annular flame caps, and each sub-mixing chamber is connected to the flame hole on the corresponding annular flame cap.

3. A burner according to claim 2, characterized in that, Each of the inner mixing cavity and the outer mixing cavity is connected to an ejector. The plurality of annular flame caps include an inner annular flame cap and an outer annular flame cap, wherein the inner annular flame cap is provided with a plurality of inner annular flame holes and the outer annular flame cap is provided with a plurality of outer annular flame holes; The plurality of inner ring fire holes are connected to the inner mixing cavity, and the plurality of outer ring fire holes are connected to the outer mixing cavity.

4. A burner according to claim 3, characterized in that, The barrier plate has multiple internal connection holes, each of which connects the air intake channel to the internal mixing chamber. The multiple internal connection holes are used to increase the air intake of the internal mixing chamber.

5. A burner according to claim 4, characterized in that, All of the inner connecting holes extend from the end near the intake channel to the end near the inner mixing chamber, gradually approaching the inner ring flame cap.

6. A burner according to any one of claims 1-5, characterized in that, The cross-sectional area of ​​the inner connecting hole perpendicular to its axis is smaller than that of the outer connecting hole perpendicular to its axis, so that the air intake of the inner mixing chamber is smaller than that of the outer mixing chamber.

7. A burner according to claim 6, characterized in that, The burner also includes a gas check valve, which is installed in the air intake channel to prevent gas in the air intake channel from flowing toward the fan.

8. A gas stove, characterized in that, The gas stove includes: A housing, the housing having an internal accommodating space, and a mounting base provided on the housing; A gas transmission pipeline is installed within the housing's accommodating space and is used to supply gas. A valve body assembly, which is installed on the gas delivery pipeline and is used to control the on / off state of the gas delivery pipeline; The burner is a burner according to any one of claims 1-7, the burner is mounted on the mounting base, and the ejector of the burner is connected to the gas delivery pipeline.

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