Gas stove and burner assembly

Abstract

The application provides a gas stove and a burner assembly. The gas stove comprises a burner assembly and a gas valve assembly. The gas valve assembly comprises a first gas outlet. The burner assembly comprises a burner body and a first burner cap. The burner body defines a first gas cavity. The first burner cap comprises a cap body, a plurality of first flame holes and a flow guide assembly. The cap body defines a central gas cavity. The first flame holes are circumferentially arranged on the top of the cap body. The flow guide assembly is arranged on the top of the cap body. The first gas cavity is communicated with the first gas outlet. The central gas cavity is communicated with the first gas cavity. The first wall surface of the flow guide assembly and the top surface of the cap body have a set distance to form an annular flame gap between the top of the cap body and the peripheral edge of the flow guide assembly. The flames at the first flame holes flow out of the annular flame gap along the bottom end surface of the flow guide assembly after passing through the first flame holes. The flames at the annular flame gap are connected with each other, have good flame stabilizing effect, and effectively improve the flame stability of the burner under the smallest fire.

Description

Technical Field

[0001] This application relates to the field of stove technology. In particular, it relates to a gas stove and burner assembly. Background Technology

[0002] A gas stove is a cooking appliance that produces a flame by burning combustible gas (such as natural gas, liquefied petroleum gas, or manufactured gas) to heat cookware and food. Gas stoves with a high-heat stir-fry function are becoming increasingly popular. Activating the high-heat stir-fry function instantly increases the heat load, immediately boosting the firepower to meet the user's cooking needs.

[0003] In related technologies, a tiny flame hole is provided on the burner head, and a tiny flame air passage is connected to the tiny flame hole. One end of the tiny flame air passage is connected to the tiny flame hole, and the other end passes through the burner head to connect with the external environment. When the tiny flame burns, the negative pressure generated by combustion actively draws in secondary air from the outside through this passage, directly supplementing the air supply to the combustion at the tiny flame hole. However, in this technology, if the gas supply is blocked by oil fumes, condensate, or impurities, the amount of gas supplied may decrease by more than 50%. The combination of insufficient gas supply and insufficient gas supply easily leads to oxygen-deficient combustion, resulting in a weak, flickering flame that is intermittently extinguished.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] This application provides a gas stove and a burner assembly. The burner assembly of the gas stove includes a first burner cap, which includes a first flame outlet hole arranged around the burner cap body and a flow guiding component arranged on the burner cap body. There is a set distance between the flow guiding component and the burner cap body to form an annular flame seam between the outer edge of the flow guiding component and the top surface of the burner cap body. The flames at the annular flame seam are interconnected, which has a good flame stabilizing effect and thus effectively improves the flame stability of the burner under very small flame combustion.

[0006] In a first aspect, embodiments of this application provide a gas stove, which includes a gas valve assembly and a burner assembly. The gas valve assembly includes a valve body, an inlet section and a first outlet section. The valve body internally defines a valve cavity. One end of the inlet section is connected to an external gas supply pipeline, and the other end of the inlet section is connected to the valve cavity. The first outlet section is connected to the valve cavity.

[0007] The burner assembly includes a burner body and a first flame cap. The burner body has a first gas chamber defined inside, and the first gas chamber is connected to a first gas outlet. The first flame cap is located on top of the first gas chamber.

[0008] The first flame cap includes a flame cap body, multiple first flame outlets, and a flow guiding assembly. A central air chamber is defined within the flame cap body, and the central air chamber is connected to the first air chamber. Multiple first flame outlets are arranged around the top of the flame cap body. The flow guiding assembly is arranged on the top of the flame cap body. A set distance is provided between the first wall surface of the flow guiding assembly and the top end face of the flame cap body to form an annular flame seam between the top of the flame cap body and the outer edge of the flow guiding assembly. The flame at the first flame outlet passes through the first flame outlet and flows out from the annular flame seam along the bottom end face of the flow guiding assembly.

[0009] By circumferentially arranging the first flame outlet to form a circumferential flame bundle, and setting a set distance between the flow guide assembly and the burner cap body, an annular flame gap is formed between the flow guide assembly and the first flame outlet. The flames at the annular flame gap are interconnected, which has a good flame stabilizing effect, thereby effectively improving the flame stability of the burner under extremely small fire combustion.

[0010] In some embodiments of this application, the flow guiding assembly includes a mounting part and a flow guiding plate. The bottom of the mounting part is installed in the space enclosed by a plurality of first flame outlet holes. The flow guiding plate and the mounting part are connected on the side away from the flame cap body. The bottom end face of the flow guiding plate forms a first wall surface. There is a set distance between the flow guiding plate and the top of the flame cap body.

[0011] The guide plate can be installed and supported by the installation part, so as to form a ring fire seam connecting the top of the guide plate and the flame cap body, so that the flame of the first flame outlet can be connected together, improving the stability of the flame in the minimum fire state.

[0012] In some embodiments of this application, a first space is defined, which is a space enclosed by a plurality of first fire outlets, and the diameter of the guide plate is larger than the diameter of the first space.

[0013] Only when the diameter of the deflector is larger than the diameter of the first space can the bottom surface of the deflector change the direction of the flame and stabilize the flame.

[0014] In some embodiments of this application, the first flame cap includes a second flame outlet and a first channel. The second flame outlet is arranged around the side wall of the flame cap body, and the first channel is used to connect the central gas chamber and at least part of the second flame outlet.

[0015] By setting up the first channel, gas can be supplied through diversion when the second chamber is not connected to gas. When cooking with a very low flame, only the first gas outlet can be opened, and the first and second flame outlets can be supplied through the central gas chamber and the first channel. With the help of the flow guiding component at the first flame outlet, the flames at the first and second flame outlets are small and uniform.

[0016] In some embodiments of this application, the gas stove includes a first ejector tube and a first nozzle. The first ejector tube is partially placed in the burner body. The gas outlet of the first ejector tube is connected to a first gas chamber. The first nozzle is connected to the gas inlet of the first ejector tube. The inner diameter of the outlet end of the first nozzle is less than 0.5 mm.

[0017] The primary function of the first ejector tube is to use fluid dynamics principles to mix the gas and air in a certain proportion to form a premixed gas suitable for combustion, thereby ensuring that the gas stove burns efficiently, stably, and safely when stir-frying.

[0018] By adjusting the inner diameter of the outlet end of the first nozzle, the gas flow rate can be reduced, providing gas support for cooking with a very low flame.

[0019] In some embodiments of this application, a second gas chamber is defined inside the burner body, the second gas chamber and the first gas chamber are independent of each other, a fourth gas chamber is defined inside the burner cap body, the fourth gas chamber is connected to the second gas chamber, and the fourth gas chamber is connected to the second flame outlet.

[0020] By setting up a second and fourth gas chamber, gas can be delivered to the second flame outlet during normal cooking, meeting the user's daily cooking needs.

[0021] In some embodiments of this application, the gas valve assembly includes a second gas outlet, which is connected to a valve chamber, and the gas stove includes a second nozzle, which is disposed at the gas outlet end of the second gas outlet and is connected to a fourth gas chamber.

[0022] By setting a first nozzle and a second nozzle, the first and second flame outlets have independent nozzles, which can ensure an efficient mixing ratio of gas and air and improve the stability of the flame.

[0023] In some embodiments of this application, the first flame cap includes an air intake component disposed at the top edge of the flame cap body, and the air intake component is configured to be recessed from the top to the bottom of the flame cap body.

[0024] By setting up an air intake component, a semi-enclosed space can be formed on the top of the first burner cap. When the gas is ejected from the first burner hole and burns, when a very small flame or low temperature combustion scenario is set, the edge of the air intake component can block the external airflow from directly impacting the root of the flame, and maintain the flame stability through the airflow barrier effect.

[0025] In some embodiments of this application, an auxiliary air hole is provided circumferentially on the side wall of the flame cap body. The auxiliary air hole is located below the second flame outlet and is connected to the fourth air chamber.

[0026] Secondly, embodiments of this application also propose a burner assembly, which includes a burner body and a first flame cap, wherein a first gas chamber is defined inside the burner body; the first flame cap is disposed on top of the first gas chamber.

[0027] The first flame cap includes a flame cap body, multiple first flame outlets, and a flow guiding assembly. A central air chamber is defined within the flame cap body, and the central air chamber is connected to the first air chamber. Multiple first flame outlets are arranged around the top of the flame cap body. The flow guiding assembly is arranged on the top of the flame cap body. A set distance is provided between the first wall surface of the flow guiding assembly and the top end face of the flame cap body to form an annular flame seam between the top of the flame cap body and the outer edge of the flow guiding assembly. The flame at the first flame outlet passes through the first flame outlet and flows out from the annular flame seam along the bottom end face of the flow guiding assembly.

[0028] By circumferentially arranging the first flame outlet to form a circumferential flame bundle, and setting a set distance between the flow guide assembly and the burner cap body, an annular flame gap is formed between the flow guide assembly and the first flame outlet. The flames at the annular flame gap are interconnected, which has a good flame stabilizing effect, thereby effectively improving the flame stability of the burner under extremely small fire combustion. Attached Figure Description

[0029] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0030] Figure 1 This is a schematic diagram of the gas stove in the embodiments of this application;

[0031] Figure 2 This is a schematic diagram of the gas stove from another perspective in an embodiment of this application;

[0032] Figure 3 for Figure 2 A cross-sectional view at position AA in the middle;

[0033] Figure 4 for Figure 2 A cross-sectional view at position BB in the middle;

[0034] Figure 5 This is an exploded view of the gas stove in an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the structure of the second flame cap in an embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the structure of the first flame cap in an embodiment of this application;

[0037] Figure 8 This is a schematic diagram of the first flame cap from another perspective in an embodiment of this application;

[0038] Figure 9 for Figure 8 A cross-sectional view at position BB in the middle;

[0039] Figure 10 This is a schematic diagram of the first flame cap from another perspective in an embodiment of this application;

[0040] Figure 11 for Figure 10 A cross-sectional view of the middle-aged man at the CC position;

[0041] Figure 12 This is a partial exploded view of the gas valve assembly in an embodiment of this application.

[0042] The attached figures are labeled as follows:

[0043] 100 - Gas stove; 10 - Burner assembly; 11 - First burner cap; 111 - Burner cap body;

[0044] 1111 - First ignition port; 1112 - Second ignition port; 1113 - Fourth gas chamber; 1114 - Central gas chamber;

[0045] 1115 - Air intake component; 1116 - Auxiliary air vent; 113 - Flow guide assembly; 1131 - Mounting part; 1132 - Flow guide plate;

[0046] 114 - First channel; 12 - Second flame cap; 121 - Third flame outlet; 122 - Fifth gas chamber;

[0047] 14-First ejector tube; 15-Second ejector tube; 16-Third ejector tube; 17-Fire distributor;

[0048] 18-Burner body; 181-First gas chamber; 182-Second gas chamber; 183-Third gas chamber;

[0049] 40 - Connecting pipe; 50 - First nozzle; 60 - Second nozzle; 70 - Third nozzle;

[0050] 20-Gas valve assembly; 21-Valve body; 211-Valve chamber; 212-Inlet section;

[0051] 213 - First air outlet; 214 - Second air outlet; 215 - Third air outlet;

[0052] 22-Valve core; 221-First vent section; 222-Second vent section; 223-Third vent section;

[0053] 224 - Air inlet; 23 - Valve stem; 26 - Valve cover. Detailed Implementation

[0054] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0055] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0056] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0057] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0058] 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.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] 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.

[0061] In related technologies, a very small flame hole is set on the burner head, and a very small flame air passage is set within the very small flame air passage. One end of the very small flame air passage is connected to the very small flame hole, and the other end passes through the burner head to connect with the external environment. When the very small flame is burning, the negative pressure generated by combustion will actively draw in secondary air from the outside through this passage, realizing direct air replenishment for combustion at the very small flame hole. In the above technology, if the gas supply is blocked by oil fumes, condensate, or impurities, the gas supply may decrease by more than 50%. The low gas supply combined with insufficient gas replenishment easily leads to oxygen-deficient combustion. The flame exhibits a weak, flickering, and intermittent extinguishing state, and the inner ring flame heat load is too high, which cannot meet the requirements of low-temperature cooking. Even when the very small flame is used, its flame is unstable and cannot maintain the temperature for flameout protection, resulting in flameout problems.

[0062] The gas stove proposed in this application adjusts the arrangement of the ring flame holes in the inner ring position based on the three-ring burner, and sets a flow guiding component above the ring flame holes to adjust the flame in the ring flame holes, so that the flames from each ring flame hole are connected to each other, which has a good flame stabilizing effect, thereby effectively improving the flame stability of the burner under extremely small flame combustion.

[0063] This application provides a gas stove, which includes a housing that can accommodate and protect other components.

[0064] In some embodiments, the housing includes a bottom shell. The bottom shell encloses a mounting cavity with an opening. The mounting cavity can be used to accommodate components such as burners.

[0065] Specifically, in some embodiments, the bottom shell may include a side plate and a bottom plate. The side plate is located on one side of the bottom plate and is disposed around the circumference of the bottom plate. The bottom plate and the side plate form the aforementioned mounting cavity.

[0066] For example, the base plate and side plates can form a rectangular mounting cavity. It is understood that the shape of the mounting cavity can be designed according to the actual situation, and no further limitations are made here.

[0067] In some embodiments, the housing includes a panel. The panel can be used to carry and support items.

[0068] The panel is placed on top of the bottom shell and is used to cover part of the opening in the mounting cavity.

[0069] Reference Figure 1 As shown, the gas stove 100 includes a burner assembly 10. The burner assembly 10 includes a burner body 18. The burner assembly is used to generate flame and heat to heat cookware.

[0070] It should be noted that the number of burner assemblies is at least one. The burner assembly provided in this embodiment can be a flat-plate burner or an anti-dry-burning burner; therefore, there is no specific limitation on the type of burner.

[0071] In some embodiments, the number of burner assemblies is at least two, and the at least two burner assemblies are spaced apart.

[0072] For example, the number of burner assemblies can be one, two, three, or four, etc.

[0073] The burner assembly is embedded in the top of the housing. Specifically, the panel has a clearance opening to allow space for the burner. This clearance opening allows the burner assembly to be placed, enabling it to heat the cookware.

[0074] In some embodiments, refer to Figure 1 As shown, the gas stove 100 also includes a gas valve assembly 20. The gas valve assembly 20 is used by the user to turn the gas stove 100 on and off and to control the flame intensity of the gas stove 100, etc.

[0075] The gas valve assembly 20 is embedded in the top of the housing, with some gas valve assemblies 20 located outside the housing and some gas valve assemblies 20 located inside the housing.

[0076] Reference Figure 2 As shown, the burner assembly 10 includes a first burner cap 11. The first burner cap 11 is located at the top center of the burner body 18.

[0077] Reference Figure 7 , Figure 8 As shown, the first flame cap 11 includes a plurality of first flame outlet holes 111, which are located on the top of the first flame cap 11.

[0078] The first flame cap 11 includes a second flame outlet 112. The second flame outlet 112 is formed on the side wall of the first flame cap 11 and is arranged around the periphery of the first flame outlet 111.

[0079] Reference Figure 2 As shown, the burner 10 includes a second burner cap 12. The second burner cap 12 is disposed around the first burner cap 11.

[0080] Reference Figure 6The second flame cap 12 includes a third flame outlet 121, which is arranged around the periphery of the second flame outlet 112.

[0081] The above structure forms a three-ring structure from the inside out, which can provide differentiated heating to different parts of the pot bottom. Whether it is slow simmering over low heat or large-area heating with uniform heat, it can fully meet the needs of various complex cooking scenarios such as frying, stir-frying, cooking, and deep-frying.

[0082] In some embodiments, a first gas chamber 181 and a second gas chamber 182 are defined inside the burner body 18, and a first flame outlet 111 and a second flame outlet 112 are formed on the first flame cap 11 of the burner, thus forming a double ring structure.

[0083] In some embodiments, a first flame outlet 111 can be provided on the first flame cap 11, and a second flame outlet 112 can be provided on the second flame cap 12, forming an upper double ring structure.

[0084] The technical solution for cooking with extremely low heat disclosed in this application embodiment is applicable to burners 10 with a three-ring structure and also to burners 10 with a two-ring structure.

[0085] Compared to the three-ring structure for ultra-low heat cooking, the difference between the two-ring structure and the two-ring structure for ultra-low heat cooking lies in the design of the burner body and the chamber design of the burner cap.

[0086] This specific implementation method mainly uses a three-ring structure as an example for explanation and illustration.

[0087] Reference Figure 3 As shown, a first gas chamber 181 is defined inside the burner body 18, and a first flame outlet 111 communicates with the first gas chamber 181.

[0088] The burner body 18 has a second gas chamber 182 defined inside, and the second flame outlet 112 is connected to the second gas chamber 182.

[0089] The first air chamber 181 and the second air chamber 182 are not connected.

[0090] The burner body 18 has a third gas chamber 183 defined inside, and the third flame outlet 121 is connected to the third gas chamber 183.

[0091] The first gas chamber 181, the second gas chamber 182 and the third gas chamber 183 are not connected to each other, so as to realize independent gas supply and ensure that gas is distributed as needed without interfering with each other.

[0092] Reference Figure 5As shown, the burner assembly 10 includes a flame spreader 17. The bottom of the flame spreader 17 is mounted on the burner body 18, and a second flame cap 12 is mounted on the top of the flame spreader 17. A first flame cap 11 is disposed at the center of the second flame cap 12.

[0093] The burner distributor 17 in the burner assembly 10 plays a key role in connecting the upper and lower parts. Its bottom is installed on the burner body 18, and its top supports the second flame cap 12. The first flame cap 11 is located in the center of the second flame cap 12, forming a stable hierarchical structure to ensure the stability and reliability of the flame distribution.

[0094] In some embodiments, refer to Figure 3 As shown, the first flame cap 11 includes a flame cap body 111. The flame cap body 111 defines a central air cavity 1114, which is connected to the first air cavity 181.

[0095] Reference Figure 8 As shown, the top of the flame cap body 111 is provided with multiple first flame outlet holes 1111, which are arranged circumferentially. Through the circumferentially arranged first flame outlet holes 1111, a closed flame bundle connected end to end can be formed on the top of the flame cap body 111, that is, a ring flame band is formed, ensuring uniform flame distribution and stable heat transfer.

[0096] In some embodiments, a plurality of first flame outlets 1111 are arranged around the top of the flame cap body 111, and the plurality of first flame outlets 1111 form a circular space, which is defined as the first space.

[0097] In some embodiments, refer to Figure 3 As shown, the first flame cap 11 includes a flow guiding component 113, which is disposed on the top of the flame cap body 111. There is a set distance between the first wall surface of the flow guiding component 113 and the top end face of the flame cap body 111. A ring flame space is formed between the flame cap body 111 and the flow guiding component 113. The flame at the first flame outlet 1111 flows out of the ring flame space along the bottom end face of the flow guiding component 113 after passing through the first flame outlet 1111.

[0098] In the view provided in this embodiment, the first wall surface (bottom end face) of the flow guiding assembly 113 is a plane. In other embodiments, the bottom end face of the flow guiding assembly 113 may also be provided with an inclined surface. The inclined surface is inclined upward from the center of the flow guiding assembly 113 towards the edge. There is still a certain distance between the lowest point of the inclined surface in the vertical direction and the top end face of the flame cap body, so as to provide space for the flame to diffuse along the edge of the flow guiding assembly 113.

[0099] By having a set distance between the flow guiding assembly 113 and the burner cap body 111, an annular flame gap is formed between the flow guiding assembly 113 and the first flame outlet 1111. The flame at the first flame outlet 1111 flows out from the annular flame gap along the bottom end face of the flow guiding assembly 113 after passing through the first flame outlet 1111. The flames at the annular flame gap are connected to each other, which has a good flame stabilizing effect, thereby effectively improving the flame stability of the burner assembly 10 under very small fire combustion.

[0100] A ring fire seam is formed between the outer periphery of the flow guide assembly 113 and the top surface of the flame cap body 111, and the first flame outlet 1111 is connected to the ring fire seam.

[0101] The flow guiding component 113 alters the flow path and shape of the flame by constructing an annular flame seam. After the flame exits from the first flame outlet 1111, adjacent flames interact under the constraint and guidance of the annular flame seam, forming a stable flame network. This structure increases the contact area and mutual support of the flames, making them less prone to extinguishing due to external airflow disturbances or gas pressure fluctuations, even at very low flame conditions. Simultaneously, the stable flame helps maintain the temperature required by the flameout protection device, reducing the possibility of accidental flameout and improving user safety and cooking experience.

[0102] When the user needs to simmer, the gas in the central gas chamber 1114 can burn at the annular flame seam to form an annular gap flame. The flames of the annular gap flames are interconnected, which has a good flame stabilizing effect. This helps to improve the flame stability of the burner assembly 10 under very low flame combustion. At the same time, its central gas chamber 1114 forms a stable flame at the flameout protection device through the external gas channel and maintains its own temperature, thus ensuring the user's simmering experience.

[0103] In some embodiments, refer to Figure 8 , Figure 9 , Figure 10 As shown, the flow guiding assembly 113 includes a mounting portion 1131. The bottom of the mounting portion 1131 is installed within the space enclosed by a plurality of first flame outlet holes 1111. By providing the mounting portion 1131, it can be used to install the flow guide plate 1132, and also to block the flame and guide its direction.

[0104] The flow guiding assembly 113 includes a flow guiding plate 1132. The flow guiding plate 1132 is connected to the top of the mounting part 1131 (the side away from the flame cap body 111), the bottom end face of the flow guiding plate 1132 forms a first wall surface, and there is a set distance between the flow guiding plate 1132 and the top of the flame cap body 111 to ensure the formation of a stable annular flame seam.

[0105] The guide plate 1132 can be installed and supported by the installation part 1131, so as to form a ring fire seam connecting the top of the guide plate 1132 and the flame cap body 111, so that the flame of the first flame outlet 1111 can be connected together, thereby improving the stability of the flame in the minimum fire state.

[0106] In some implementations, refer to Figure 5 As shown, the guide plate 1132 is set as a circular plate. This shape helps to form a regular and uniform annular flame on the top of the flame cap body 111, further improving flame stability and heat distribution uniformity.

[0107] In some embodiments, the diameter of the guide plate 1132 is larger than the diameter of the first space.

[0108] In some embodiments, the first flame outlet 1111 is circular, and the first space is formed by a ring of the first flame outlets 1111. The diameter of the first space is the farthest distance between two oppositely arranged first flame outlets 1111.

[0109] In other embodiments, if there are no two first flame holes 1111 arranged opposite each other, the diameter of the first space is the diameter of the circle formed by the farthest point of the plurality of first flame holes 1111 that is farthest from the center of the first space.

[0110] In some implementations, if the multiple first flare holes 1111 do not form an irregular space, the diameter of the first space is the geometrically furthest distance between all pairs of first flare holes 1111.

[0111] When the diameter of the guide plate 1132 is larger than the diameter of the first space, its bottom surface can effectively change the direction of the flame, just like setting a guide surface for the flame, enhancing the interconnection and constraint between flames, and achieving a better flame stabilization effect.

[0112] In some embodiments of this application, reference is made to Figure 10 , Figure 11 As shown, the first flame cap 11 includes a first channel 114 and a second flame outlet 1112 is arranged around the side wall of the flame cap body 111. The first channel 114 is used to connect the central gas chamber 1114 and at least part of the second flame outlet 1112.

[0113] By setting the first channel 114, gas can be supplied through the first channel 114 when the second chamber 182 is not connected to gas.

[0114] When cooking over very low heat, only the first air outlet 213 can be opened, and the first flame outlet 1111 and the second flame outlet 1112 can be supplied through the central air chamber 1114 and the first channel 114. With the help of the flow guide component 113 at the first flame outlet 1111, the flames at the first flame outlet 1111 and the second flame outlet 1112 are small and uniform.

[0115] The first channel 114 breaks the limitation of independent gas supply to the gas chamber, enabling flexible gas distribution. In the ultra-low flame mode, gas is supplied to the burner holes in two areas simultaneously through a single channel, reducing the complexity of gas valve adjustment and allowing for more precise control of gas flow. Combined with the flow guide component 113, the flame remains evenly distributed and burns stably even at low flow rates, meeting the stringent requirements of low-temperature cooking for flame stability and heat uniformity, effectively preventing localized overheating or fluctuating flame size.

[0116] In some embodiments, refer to Figure 1 , Figure 3 As shown, the burner assembly 10 includes a first ejector tube 14, which is disposed on one side of the burner body 18. One side of the first ejector tube 14 is inserted into the burner body 18, and the first ejector tube 14 is connected to the first gas chamber 181.

[0117] The main function of the first ejector tube 14 is to use the principle of fluid dynamics to mix the gas and air in a certain proportion to form a premixed gas suitable for combustion, so as to ensure that the gas stove 100 burns efficiently, stably and safely when stir-frying.

[0118] The gas stove 100 also includes a first nozzle 50. The first nozzle 50 is connected to the first injector tube 14. By setting the inner diameter of the outlet end of the first nozzle 50, the gas flow can be precisely adjusted to provide stable and appropriate gas support for cooking with a very low flame.

[0119] In some embodiments, the inner diameter of the outlet end of the first nozzle 50 is less than 0.5 mm.

[0120] The combination of the first ejector tube 14 and the first nozzle 50 constitutes the core unit for gas premixing and flow control. The ejector tube ensures that the gas and air are fully mixed, improving combustion efficiency; the small-diameter nozzle limits the gas flow, making the gas supply more stable in the low-fire state.

[0121] This design avoids wasting gas and reduces harmful gas emissions, while ensuring stable combustion of the flame even at low power, meeting users' needs for energy conservation and environmental protection.

[0122] When a very low heat is required for slow cooking, the gas is supplied to the central flame through the first gas chamber 181 and the central gas chamber 1114. Since the gas flow from the first nozzle 50 is limited, the firepower at the first flame outlet 1111 can meet the user's needs for slow cooking at a low temperature.

[0123] In some embodiments, refer to Figure 3As shown, a fourth gas chamber 1113 is provided on the first flame cap 11. The fourth gas chamber 1113 is connected to the second gas chamber 182, and the fourth gas chamber 1113 is connected to the second flame outlet 1112.

[0124] In some embodiments, refer to Figure 3 As shown, the second flame cap 12 is provided with a fifth gas chamber 122, which is connected to the third gas chamber 183 and the third flame outlet 121.

[0125] This precise connection between the gas chamber and the burner hole ensures that the gas can be efficiently and stably delivered to the corresponding burner hole, providing sufficient gas for flame combustion.

[0126] In some embodiments of this application, reference is made to Figure 5 As shown, the first flame cap 11 includes an air intake component 1115, which is disposed on the top edge of the flame cap body 111 and is configured to be recessed from the top to the bottom of the flame cap body 111.

[0127] By setting the air intake component 1115, a semi-enclosed space can be formed on the top of the first flame cap 11. When the gas is ejected from the first flame outlet 1111 and burned, when a very small flame or low temperature combustion scenario is set, the edge of the air intake component 1115 can block the external airflow from directly impacting the root of the flame, and maintain the flame stability through the airflow barrier effect.

[0128] The semi-enclosed structure of the air intake component 1115 utilizes aerodynamic principles to create a stable airflow environment around the flame. When external airflow passes through the air intake component 1115, its direction is altered by its edges, reducing interference with the flame root. This design is particularly suitable for natural wind or range hood airflow disturbances that may exist in a kitchen environment, ensuring that the flame will not be extinguished or unstable due to external airflow in the lowest flame setting, thus improving the adaptability and reliability of the gas stove in practical use scenarios.

[0129] In some embodiments, an auxiliary air hole 1116 is provided circumferentially on the side wall of the flame cap body 111. The auxiliary air hole 1116 is located below the second flame outlet 1112, and the auxiliary air hole 1112 is connected to the fourth air chamber 1113.

[0130] Combustion of natural gas requires oxygen (air). Insufficient air supply leads to incomplete combustion, producing harmful gases such as carbon monoxide, and causing the flame to turn yellow and emit black smoke. The main function of the auxiliary vent 1116 is to supplement the air required for combustion when the natural gas is premixed with the primary air in the second ejector tube during combustion at the second flame outlet, especially when the flame is high. This promotes complete combustion and improves combustion efficiency.

[0131] Reference Figure 12As shown, the gas valve assembly 20 includes a valve body 21. The valve body 21 is internally defined in a valve cavity 211.

[0132] The gas valve assembly 20 includes an air inlet 212. The air inlet 212 communicates with the valve chamber 211. The air inlet 212 is connected to an external gas pipeline for receiving external gas.

[0133] The gas valve assembly 20 includes a first gas outlet 213. The first gas outlet 213 communicates with a first gas chamber 181. The first gas outlet 213 is used to supply gas to the first flame outlet 111.

[0134] The gas valve assembly 20 includes a second gas outlet 214. The second gas outlet 214 communicates with the second gas chamber 182. The second gas outlet 214 is used to supply gas to the second flame outlet 112.

[0135] The gas valve assembly 20 includes a third gas outlet 215. The third gas outlet 215 communicates with the third gas chamber 183. The third gas outlet 215 is used to supply gas to the third flame port 121.

[0136] Gas can enter the valve chamber 211 through the air inlet 212, and then the gas can enter the first gas outlet pipe, the second gas outlet pipe and the third gas outlet pipe according to the rotation of the internal valve core 22.

[0137] In some embodiments of this application, the gas stove includes a second nozzle 60, which is disposed at the gas outlet end of the second gas outlet 214 and communicates with the fourth gas chamber 1113.

[0138] By setting the first nozzle 50 and the second nozzle 60, the first flame outlet 1111 and the second flame outlet 1112 have independent nozzles, which can ensure an efficient mixing ratio of gas and air and improve the stability of the flame.

[0139] In some embodiments of this application, the gas stove includes a third nozzle 70, which is disposed at the gas outlet end of the third gas outlet 215 and communicates with the fifth gas chamber 112.

[0140] Reference Figure 12 As shown, the first air outlet 213, the second air outlet 214 and the third air outlet 215 are arranged at intervals along the circumference of the valve cavity 211.

[0141] Along the height direction, the first air outlet 213 and the second air outlet 214 are at different heights, and the first air outlet 213 and the third air outlet 215 are at different heights.

[0142] It is understandable that by staggering the arrangement of the first gas outlet 213, the second gas outlet 214, and the third gas outlet 215, it is beneficial to save space and reduce the overall size of the gas valve assembly 20.

[0143] In some embodiments, refer to Figure 4 , Figure 12 As shown, the gas valve assembly 20 includes a valve core 22. The valve core 22 is disposed in the valve chamber 211. The valve core 22 is provided with a first vent 221, a second vent 222, and a third vent 223, which correspond to the first gas outlet 213, the second gas outlet 214, and the third gas outlet 215, respectively.

[0144] The valve core 22 is also provided with an air inlet 224, which is located below the valve core 22.

[0145] Reference Figure 12 As shown, the gas stove 100 includes a valve stem 23, which is inserted into the valve core 22. The valve stem 23 drives the valve core 22 to rotate so that the gas inlet 212 is connected to the first gas outlet 213, the second gas outlet 214 and the third gas outlet 215.

[0146] The valve stem 23 is connected to the valve core 22 to enable the valve core 22 to rotate. Multiple vents are provided on the valve core 22, and the positions of the vents and the air outlets are aligned to enable the connection or disconnection of each air outlet.

[0147] The gas valve assembly 20 also includes a valve cover 26. The valve cover 26 has a receiving cavity in which the valve stem 23 is inserted, and the valve stem 23 and the valve cover 26 are movably connected.

[0148] In some embodiments, the first vent 221, the second vent 222, and the third vent 223 are arranged circumferentially along the length of the valve core 22.

[0149] By circumferentially arranging the first ventilation section 221, the second ventilation section 222, and the third ventilation section 223, the spatial layout of each gas outlet section is facilitated, which helps to reduce the overall space of the gas stove 100.

[0150] Reference Figure 4 As shown, the first vent 221 is configured as a circular hole, the shape of which matches the shape of the pipeline for the purpose of passing gas.

[0151] The second vent 222 and the third vent 223 are configured as elongated slots, and those skilled in the art can adjust the shape of the first vent 221, the second vent 222 and the third vent 223 as needed.

[0152] The gas stove 100 includes a connecting pipe 40, which is installed between the first gas outlet 213 and the first nozzle 50.

[0153] The connecting pipe 40 has a simple structure. While ensuring the normal operation of the burner assembly 10, the heat load can be adjusted according to actual needs, thereby realizing the stir-frying function of the gas stove 100.

[0154] In some embodiments, the burner assembly 10 includes a second ejector tube 15 and a third ejector tube 16. The second ejector tube 15 is disposed on the side of the burner body 18 and communicates with a second gas chamber 182. The third ejector tube 16 is disposed on the side of the burner body 18 and communicates with a third gas chamber 183.

[0155] By setting the second ejector tube 15 and the third ejector tube 16, a premixed gas suitable for combustion is formed to ensure that a stable flame is formed at the second flame outlet 112 and the third flame outlet 121.

[0156] The gas stove 100 of this application features a multi-nozzle, multi-ejector structure. That is, the gas stove 100 is equipped with multiple nozzles and multiple ejector tubes, with each nozzle and ejector tube corresponding to the other. This design of multiple nozzles and ejector tubes allows for the subdivision of the combustion zone, and through the combination of different nozzles and ejector tubes, precise adjustment of the flame intensity can be achieved.

[0157] This application provides a gas stove 100 with a very low heat cooking function. The gas stove 100 includes a gas valve assembly 20, which includes a valve body 21, an air inlet 212, and a first air outlet 213.

[0158] One end of the air intake 212 is connected to an external air supply pipeline, and the other end of the air intake 212 is connected to a valve chamber. The first air outlet 213 is connected to the first nozzle 50.

[0159] The gas stove 100 includes a burner assembly 10, which includes a burner body and a first burner cap 11. The first burner cap 11 includes a burner cap body 111 with a plurality of first flame outlet holes 1111 on the top and a flow guiding assembly 113. The burner body 181 is internally defined to form a first gas chamber 181, which is connected to a first gas outlet 213. The burner cap body 111 is internally defined to form a central gas chamber 1114, which is connected to the first gas chamber 181. The plurality of first flame outlet holes 1111 are circumferentially arranged on the top of the burner cap body 111.

[0160] The flow guiding component 113 is disposed on the top of the flame cap body 111. There is a set distance between the bottom surface of the flow guiding component 113 and the top surface of the flame cap body 111 to form an annular flame seam between the top of the flame cap body 111 and the outer edge of the flow guiding component 113. The flame at the first flame outlet 1111 flows out of the annular flame seam along the bottom end face of the flow guiding component 113 after passing through the first flame outlet 1111.

[0161] Because the annular fire seam is designed in a ring shape, the flames at the annular fire seam can be connected to each other. The annular fire seam has a good flame stabilizing effect, which effectively improves the flame stability of the burner assembly 10 under very small fire combustion.

[0162] This application also proposes a burner assembly 10, which includes a burner body 18 and a first flame cap 111. The burner body 18 has a first gas chamber 181 defined inside it. The first flame cap 111 is disposed on the top of the first gas chamber 181.

[0163] The first flame cap 11 includes a flame cap body 111 with a plurality of first flame outlet holes 1111 arranged circumferentially on the top and a flow guiding assembly 113. A central air cavity 1114 is defined within the flame cap body 111, and the central air cavity 1114 is connected to the first air cavity 181. The plurality of first flame outlet holes 1111 are arranged around the top of the flame cap body 111. The flow guiding assembly 113 is disposed on the top of the flame cap body. There is a set distance between the bottom surface of the flow guiding assembly 113 and the top surface of the flame cap body 111 to form an annular flame seam between the top of the flame cap body 111 and the outer edge of the flow guiding assembly 113. The flame at the first flame outlet hole 1111 flows out of the annular flame seam along the bottom end face of the flow guiding assembly 113 after passing through the first flame outlet hole 1111.

[0164] The structure of the burner assembly 10 proposed in this embodiment is the same as the technical solution of the burner assembly described above, and will not be repeated here. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0165] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A gas stove, characterized in that, include: Gas valve assembly, the gas valve assembly comprising: The valve body internally defines a valve cavity; An air intake section, one end of which is connected to an external air supply pipeline, and the other end of which is connected to the valve chamber; The first air outlet is connected to the valve cavity; Burner assembly, the burner assembly comprising: The burner body has a first gas chamber defined inside, and the first gas chamber is connected to the first gas outlet. A first flame cap, disposed at the top of the first gas chamber, comprises: The flame cap body has a central air cavity defined within it, and the central air cavity is connected to the first air cavity. Multiple first flame outlets are arranged circumferentially on the top of the flame cap body; A flow guiding component is disposed on the top of the flame cap body. A set distance is provided between the first wall surface of the flow guiding component and the top end face of the flame cap body to form an annular flame seam between the top of the flame cap body and the outer edge of the flow guiding component. The flame at the first flame outlet flows out from the annular flame seam along the bottom end face of the flow guiding component after passing through the first flame outlet.

2. The gas stove according to claim 1, characterized in that, The flow guiding component includes: The mounting part is installed at its bottom within the space enclosed by a plurality of first flame outlet holes; A flow guide plate is connected to the side of the mounting portion away from the flame cap body. The bottom end face of the flow guide plate forms the first wall surface. There is a set distance between the flow guide plate and the top of the flame cap body.

3. The gas stove according to claim 2, characterized in that, The space enclosed by the plurality of first flame outlets is defined as a first space, and the diameter of the guide plate is larger than the diameter of the first space.

4. The gas stove according to any one of claims 1-3, characterized in that, The first flame cap includes: The second flame outlet is arranged around the side wall of the flame cap body; The first channel is used to connect the central gas chamber and at least part of the second flare port.

5. The gas stove according to any one of claims 1-3, characterized in that, Also includes: The first ejector tube is partially placed in the burner body, and the outlet of the first ejector tube is connected to the first gas chamber. The first nozzle is connected to the air inlet of the first ejector tube, and the inner diameter of the outlet end of the first nozzle is less than 0.5 mm.

6. The gas stove according to claim 4, characterized in that, The burner body internally defines a second air chamber, and the second air chamber and the first air chamber are independent of each other; The flame cap body defines a fourth gas chamber, which is connected to the second gas chamber and the second flame outlet.

7. The gas stove according to claim 6, characterized in that, The gas valve assembly includes: The second air outlet is connected to the valve chamber. The gas stove includes: The second nozzle is located at the outlet end of the second air outlet section, and the second nozzle is connected to the fourth air chamber.

8. The gas stove according to any one of claims 1-3, characterized in that, The first flame cap includes: An air intake component is disposed on the top edge of the flame cap body, and the air intake component is configured to be recessed from the top to the bottom of the flame cap body.

9. The gas stove according to claim 6, characterized in that, The side wall of the flame cap body is provided with auxiliary air holes in the circumferential direction. The auxiliary air holes are located below the second flame outlet and are connected to the fourth air chamber.

10. A burner assembly, characterized in that, include: The burner body has a first gas chamber internally defined; A first flame cap, disposed at the top of the first gas chamber, comprises: The flame cap body has an inner limit forming a central air cavity, which is connected to the first air cavity; Multiple first flame outlets are arranged circumferentially on the top of the flame cap body; A flow guiding component is disposed on the top of the flame cap body. A set distance is provided between the first wall surface of the flow guiding component and the top end face of the flame cap body to form an annular flame seam between the top of the flame cap body and the outer edge of the flow guiding component. The flame at the first flame outlet flows out from the annular flame seam along the bottom end face of the flow guiding component after passing through the first flame outlet.

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