Inner ring burner and gas stove

Abstract

This application relates to the field of kitchen appliance technology, and more particularly to an inner ring burner cap and a gas stove. The inner ring burner cap has an inner ring cavity; ignition holes and flame-preserving holes, respectively communicating with the inner ring cavity, are formed on the side walls of the inner ring burner cap. The ignition holes are configured opposite to the ignition needle, and the flame-preserving holes are configured opposite to the thermocouple; a main burner hole, communicating with the inner ring cavity, is provided at the top of the inner ring burner cap; an ignition groove, communicating with the inner ring cavity, is formed on the outer side wall of the inner ring burner cap, arranged around the axis of the inner ring burner cap, and located between the outlet of the flame-preserving hole and the outlet of the main burner hole. The ignition groove on the inner ring burner cap facilitates the upward propagation of the flame at the flame-preserving hole to form a flame at the main burner hole, enabling the inner ring burner cap to achieve rapid and stable flame propagation, thus improving the user experience.

Description

Technical Field

[0001] This application relates to the field of kitchen appliances technology, and in particular to an inner ring burner cap and a gas stove. Background Technology

[0002] A gas stove includes an inner ring burner cap, an outer ring burner cap, and a gas distribution seat. The inner and outer ring burner caps are respectively provided with flame holes. The mixture of air and gas is burned at the flame holes to heat the cookware.

[0003] Currently, gas stoves have an ignition needle and a thermocouple, which are respectively positioned between the outer periphery of the inner ring burner and the annular channel of the outer ring burner. The side wall of the inner ring burner has an ignition hole corresponding to the ignition needle and a flame-holding hole corresponding to the thermocouple. The inner ring burner also has multiple inner ring main burner holes. When an electric arc is generated at the tip of the ignition needle, the arc ignites the gas ejected from the ignition hole. The flame at the ignition hole ignites the gas ejected from the flame-holding hole, and the flame at the flame-holding hole ignites the gas ejected from the inner ring main burner holes, thus producing a flame at the inner ring main burner holes.

[0004] However, after the ignition needle generates an electric arc, the flame spreads slowly on the inner ring of the burner cap, affecting the user experience. Utility Model Content

[0005] Based on this, this application provides an inner ring burner and a gas stove to solve the problem that the flame propagation efficiency on the inner ring burner is slow in related technologies, which affects the user experience.

[0006] In a first aspect, embodiments of this application provide an inner ring flame cap, which has an inner ring cavity;

[0007] The inner ring burner cap has an ignition hole and a flame-keeping hole that are respectively connected to the inner ring cavity. The ignition hole is configured to be opposite to the ignition needle, and the flame-keeping hole is configured to be opposite to the thermocouple.

[0008] The top of the inner ring burner cap is provided with an inner ring main burner hole that communicates with the inner ring cavity;

[0009] An ignition groove communicating with the inner ring cavity is provided on the outer wall of the inner ring flame cap. The ignition groove is arranged around the axis of the inner ring flame cap and is located between the flame protection hole and the outlet of the inner ring main flame hole.

[0010] In one possible implementation, the inner ring flame cap is also provided with multiple ignition holes, one end of each ignition hole is connected to the inner ring cavity, and the other end of each ignition hole is connected to the interior of the ignition groove.

[0011] In one possible implementation, the end of each ignition hole that connects to the ignition groove is located on the bottom wall of the ignition groove, and the axis of each ignition hole is parallel to the axis of the inner ring fire cap.

[0012] In one possible implementation, multiple ignition holes are arranged at equal intervals around the axis of the inner ring fire cap.

[0013] In one possible implementation, the top of the inner ring flame cap has multiple inner ring protrusions that bulge upwards, and these protrusions are arranged around the axis of the inner ring flame cap. Each inner ring protrusion has multiple inner ring main flame holes.

[0014] In one possible implementation, the outlet of the inner ring main burner is located on the side of the inner ring protrusion away from the axis of the inner ring burner cap, the axis of the inner ring main burner is inclined to the axis of the inner ring burner cap, and the distance between the top of the inner ring main burner and the axis of the inner ring burner cap is greater than the distance between the bottom of the inner ring main burner and the axis of the inner ring burner cap.

[0015] In one possible implementation, the height of the ignition groove is 0.8mm-1.5mm.

[0016] In one possible implementation, the distance between the top edge of the opening of the ignition groove and the axis of the inner ring flame cap is greater than the distance between the bottom edge of the opening of the ignition groove and the axis of the inner ring flame cap.

[0017] In one possible implementation, a brim protrudes from the outer wall of the inner ring flame cap. The brim is located between the ignition hole and the ignition groove in the axial direction of the inner ring flame cap, and both the ignition hole and the flame-keeping hole are located below the brim.

[0018] Secondly, this application provides a gas stove, including a burner head, a gas distribution seat, an outer ring burner cap, and the aforementioned inner ring burner cap. The gas distribution seat is installed on the burner head, the outer ring burner cap is placed on the gas distribution seat, and the inner ring burner cap is placed in the middle of the outer ring burner cap. An ignition needle and a thermocouple are installed on the burner head. The ignition needle is positioned opposite to the ignition hole of the inner ring burner cap, and the thermocouple is positioned opposite to the flame-keeping hole of the inner ring burner cap.

[0019] The inner ring burner cap and gas stove provided in this application have an inner ring cavity. The inner ring burner cap has an ignition hole and a flame-preserving hole on its side wall, both communicating with the inner ring cavity. The top of the inner ring burner cap has an inner ring main burner hole communicating with the inner ring cavity. An ignition groove is provided between the outlet of the flame-preserving hole and the outlet of the inner ring main burner hole, and this ignition groove is arranged around the axis of the inner ring burner cap. During ignition, the flame at the flame-preserving hole can propagate upwards to ignite the gas ejected from the ignition groove, thus generating a flame at the ignition groove. Similarly, the flame at the ignition groove can propagate upwards to ignite the gas ejected from the inner ring main burner hole, thus generating a flame at the inner ring main burner hole. In other words, the ignition groove facilitates the upward propagation of the flame at the flame-preserving hole to form a flame at the inner ring main burner hole, enabling the inner ring burner cap to achieve a rapid and stable flame transmission effect, improving the user experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the inner ring flame cap provided in an embodiment of this application;

[0022] Figure 2 A top view of the inner ring flame cover provided in an embodiment of this application;

[0023] Figure 3 A bottom view of the inner ring flame cover provided in an embodiment of this application;

[0024] Figure 4 This is a cross-sectional view of the inner ring fire cover provided in an embodiment of this application;

[0025] Figure 5 A schematic diagram of the inner ring flame cap provided in an embodiment of this application from another perspective;

[0026] Figure 6 This is a partial structural schematic diagram of a gas stove provided in an embodiment of this application;

[0027] Figure 7 This is a schematic diagram showing the connection between the inner ring burner cap, the outer ring burner cap, and the gas distributor according to an embodiment of this application.

[0028] Figure 8 for Figure 7 Exploded view;

[0029] Figure 9 This is a schematic diagram of the flame transmission of a gas stove provided in an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100-Inner ring flame cap;

[0032] 110 - Inner ring cavity; 120 - Ignition hole; 130 - Flame retention hole; 140 - Inner ring main flame hole; 150 - Ignition groove; 160 - Ignition hole; 170 - Inner ring protrusion; 180 - Cap brim;

[0033] 200-stove head;

[0034] 300-Gas Distribution Seat;

[0035] 400 - Outer ring burner cap; 410 - Outer ring main burner port;

[0036] 500-ignition needle;

[0037] 600-Thermocouple. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0039] 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, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0041] The terms “first,” “second,” and “third” (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0042] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0043] In existing technology, gas stoves have ignition holes and flame-holding holes on the side wall of the inner ring burner cap. The ignition holes are positioned to correspond to the ignition needle, and the flame-holding holes are positioned to correspond to the thermocouple. Multiple inner ring main burner holes are located on the top of the inner ring burner cap. After an electric arc is formed at the end of the ignition needle, this arc ignites the gas ejected from the ignition hole. The flame at the ignition hole ignites the gas ejected from the flame-holding hole, and the flame at the flame-holding hole propagates upwards to ignite the gas ejected from the inner ring main burner holes, thus forming a flame at the inner ring main burner holes. However, after the ignition needle generates an electric arc, the flame at the flame-holding hole does not easily propagate upwards. Furthermore, when the distance between two adjacent inner ring main burner holes is large, the flame does not easily propagate between them. The flame propagation efficiency on the inner ring burner cap is slow, affecting the user experience.

[0044] After repeated consideration and verification, the inventors discovered that if an ignition groove is provided on the side wall of the inner ring burner cap, and this ignition groove is connected to the cavity of the inner ring burner cap, arranged around the axis of the inner ring burner cap, and located between the flame-holding hole on the side wall of the inner ring burner cap and the outlet of the inner ring main burner hole at the top of the inner ring burner cap, the flame at the flame-holding hole can easily propagate upwards to form a flame at the outlet of the inner ring main burner hole. Furthermore, because the ignition groove is arranged around the axis of the inner ring burner cap, the upward propagation of the flame at the ignition groove can ignite the gas ejected from different inner ring main burner holes, causing flames to form at different inner ring main burner holes. By providing an ignition groove, the inner ring burner cap can achieve a rapid and stable flame propagation effect, improving the user experience.

[0045] In view of this, the inventors designed an inner ring burner cap and a gas stove. The inner ring burner cap has an ignition groove on its side wall, located between the flame-preserving hole and the outlet of the inner ring main burner hole. The ignition groove facilitates the propagation of the flame on the inner ring burner cap, thereby achieving a rapid and stable flame transmission effect.

[0046] The technical solutions of the inner ring burner and gas stove provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0047] Reference Figures 1 to 5 As shown in the embodiment of this application, the inner ring flame cap 100 has an inner ring cavity 110. Schematic, the inner ring flame cap 100 includes a top wall and side walls disposed around the top wall, the top wall and side walls defining the inner ring cavity 110 located inside the inner ring flame cap 100.

[0048] The inner ring flame cap 100 has an ignition hole 120 and a flame-holding hole 130 on its side wall, which communicate with the inner ring cavity 110 respectively. The ignition hole 120 is configured to be opposite to the ignition needle 500, and the flame-holding hole 130 is configured to be opposite to the thermocouple 600. There can be multiple ignition holes 120 and multiple flame-holding holes 130, with multiple flame-holding holes 130 located on one side of multiple ignition holes 120, and the multiple ignition holes 120 and multiple flame-holding holes 130 are arranged at intervals along the circumference of the inner ring flame cap 100. This embodiment does not limit the specific number of ignition holes 120 and flame-holding holes 130; those skilled in the art can configure them as needed.

[0049] Those skilled in the art will understand that the electric arc generated at the tip of the ignition needle 500 can ignite the gas ejected from the ignition hole 120, causing a flame to form at the ignition hole 120. The flame at the ignition hole 120 can propagate laterally to ignite the gas ejected from the flame-holding hole 130, causing a flame to form at the flame-holding hole 130. Thermocouple 600 can determine whether the inner ring burner cap 100 is burning normally by detecting whether there is a flame at the corresponding flame-holding hole 130.

[0050] The top of the inner ring burner cap 100 is provided with an inner ring main flame hole 140 that communicates with the inner ring cavity 110. There can be multiple inner ring main flame holes 140, which can be arranged in an array around the axis of the inner ring burner cap 100. The flames generated at the multiple inner ring main flame holes 140 by the inner ring burner cap 100 can heat the cookware.

[0051] An ignition groove 150 communicating with the inner ring cavity 110 is formed on the outer wall of the inner ring burner cap 100. The ignition groove 150 is arranged around the axis of the inner ring burner cap 100 and is located between the outlet of the flame-holding hole 130 and the inner ring main burner hole 140. In one possible implementation, the wall thickness of the inner ring burner cap 100 is thicker near the top. The ignition groove 150 can be integrally formed at the thicker part of the inner ring burner cap 100 side wall, and the ignition groove 150 is located inside the side wall of the inner ring burner cap 100, with its opening located on the side opposite to the axis of the inner ring burner cap 100. Part of the combustion gas in the inner ring cavity 110 can be ejected outward through the ignition groove 150. Figure 1 and Figure 4 As shown, in the axial direction of the inner ring flame cap 100, the ignition groove 150 is spaced apart from the flame-keeping hole 130 and the top of the inner ring flame cap 100.

[0052] The ignition channel 150 can extend laterally. When the flame at the ignition port 130 propagates upward to ignite the gas ejected from the ignition channel 150, the inner ring flame cap 100 forms a ring flame around the inner ring flame cap 100 at the ignition channel 150. The ring flame at the ignition channel 150 can also propagate upward to ignite the gas ejected from the inner ring main flame port 140, thus forming a flame at the inner ring main flame port 140.

[0053] The inner ring burner cap 100 provided in this embodiment allows the flame at the flame-holding hole 130 to propagate upwards during ignition, igniting the gas ejected from the ignition groove 150, thus generating a flame at the ignition groove 150. The flame at the ignition groove 150 can also propagate upwards to ignite the gas ejected from the inner ring main burner hole 140, generating a flame at the inner ring main burner hole 140. In other words, the ignition groove 150 facilitates the upward propagation of the flame at the flame-holding hole 130 to form a flame at the inner ring main burner hole 140, and the annular flame at the ignition groove 150 can ignite the gas at different inner ring main burner holes 140 to form flames at different inner ring main burner holes 140. The ignition hole 120, flame-holding hole 130, ignition groove 150, and inner ring main burner hole 140 define a multi-stage ignition path on the inner ring burner cap 100, enabling the inner ring burner cap 100 to achieve rapid and stable ignition, thus improving the user experience.

[0054] In addition, the ignition hole 120, flame-preserving hole 130, ignition groove 150 and inner ring main flame hole 140 can effectively and evenly disperse the static pressure of the gas in the inner ring cavity 110. When the static pressure of the gas in the inner ring cavity 110 is large, the ignition groove 150 can also play a role in depressurization, so that the gas release at the flame hole outlet of the inner ring flame cap 100 is uniform and the flow rate is stable. This can effectively solve the problems of flame detachment and slow flame transmission under special combustion conditions such as high pressure, cold state, and flame-delay boundary gas, so that the flame-preserving hole 130 and other parts can achieve stable flame combustion and diffusion under the above-mentioned harsh conditions.

[0055] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the inner ring flame cap 100 is also provided with a plurality of ignition holes 160, one end of each ignition hole 160 is connected to the inner ring cavity 110, and the other end of each ignition hole 160 is connected to the interior of the ignition groove 150.

[0056] Schematic illustration: Ignition holes 160 are formed on the wall of the ignition groove 150, and multiple ignition holes 160 can achieve communication between the ignition groove 150 and the inner ring cavity 110. Each ignition hole 160 can be integrally formed on the inner ring flame cap 100. In this embodiment, the specific number of ignition holes 160 is not limited, and those skilled in the art can set it as needed.

[0057] In a specific embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, one end of each ignition hole 160 that connects to the ignition groove 150 is located on the bottom wall of the ignition groove 150, and the axis of each ignition hole 160 is parallel to the axis of the inner ring fire cover 100.

[0058] Understandably, when the inner ring flame cap 100 is in use, the axes of each ignition hole 160 extend vertically. The projection of the ignition hole 160 in the vertical direction is located within the ignition groove 150.

[0059] Those skilled in the art will understand that, due to the ignition groove 150 formed on the side wall of the inner ring flame cap 100, the wall thickness of the inner ring flame cap 100 at the ignition groove 150 position is relatively thin. If the ignition hole 160 is located on the bottom wall of the ignition groove 150, i.e., on the wall surface of the ignition groove 150 facing the axis of the inner ring flame cap 100, the structural strength of the inner ring flame cap 100 at the ignition groove 150 position will be weak, affecting the service life of the inner ring flame cap 100. Placing the ignition hole 160 on the bottom wall of the ignition groove 150 helps to ensure the structural strength of the inner ring flame cap 100, thereby ensuring its service life. It is understood that the axes of each ignition hole 160 are parallel to the axis of the inner ring flame cap 100, facilitating the processing of the ignition hole 160 and reducing the production cost of the inner ring flame cap 100.

[0060] Figure 1 , Figure 3 and Figure 4 As shown, multiple ignition holes 160 are arranged at equal intervals around the axis of the inner ring flame cap 100.

[0061] In other words, multiple ignition holes 160 are evenly arranged around the axis of the inner ring flame cap 100. This arrangement allows for a more uniform intensity of the annular flame formed at the ignition groove 150, which is beneficial for the flame at different positions of the ignition groove 150 to propagate upwards and ignite the gas ejected from different positions of the inner ring main flame holes 140.

[0062] For illustrative purposes, the height of the ignition slot 150 is 0.8mm-1.5mm.

[0063] The height of the ignition groove 150 is the axial dimension of the ignition groove 150 in the inner ring flame cap 100. For example, the height of the ignition groove 150 can be 0.8mm, 1mm, 1.2mm or 1.5mm, etc., and is not limited to a single value. When the height of the ignition groove 150 is less than 0.8 mm, and the static pressure of the gas in the inner ring cavity 110 is relatively high, the flame at the position of the ignition groove 150 is prone to "flame detachment", which makes the flame at the position of the ignition groove 150 unable to burn stably and affects the ignition of the inner ring burner cap 100. When the height of the ignition groove 150 is greater than 1.5 mm, the ignition groove 150 occupies a large space in the axial direction of the inner ring burner cap 100. When the ignition groove 150 is connected to the inner ring cavity 110 through the ignition hole 160, and the end of the ignition hole 160 connected to the ignition groove 150 is located at the bottom of the ignition groove 150, the flame at the position of the ignition groove 150 is closer to the bottom of the ignition groove 150, which is not conducive to the upward propagation of the flame at the position of the ignition groove 150.

[0064] In other words, by limiting the height of the ignition channel 150, the flame at the position of the ignition channel 150 can be stably propagated upwards while ensuring stable combustion of the flame.

[0065] In one possible implementation, such as Figure 1 and Figure 4 As shown, the distance between the top edge of the opening of the ignition groove 150 and the axis of the inner ring flame cap 100 is greater than the distance between the bottom edge of the opening of the ignition groove 150 and the axis of the inner ring flame cap 100.

[0066] Specifically, the top edge of the opening of the ignition channel 150 extends outward beyond the bottom edge of the opening. The specific dimension by which the top edge of the opening of the ignition channel 150 extends beyond the bottom edge of the opening can be set as needed and is not limited here.

[0067] When the oil-water mixture flows onto the inner ring burner cap 100, since the top edge of the opening of the ignition groove 150 extends beyond the bottom edge of the opening, the oil-water mixture flowing from top to bottom along the side wall of the inner ring burner cap 100 can be prevented from flowing into the ignition groove 150 and causing blockage of the ignition groove 150, which helps to reduce the maintenance probability of the inner ring burner cap 100.

[0068] In one embodiment, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the top of the inner ring flame cap 100 has multiple inner ring protrusions 170 protruding upwards, and the multiple inner ring protrusions 170 are arranged around the axis of the inner ring flame cap 100. The multiple inner ring protrusions 170 can be integrally formed on the top of the inner ring flame cap 100, and the multiple inner ring protrusions 170 define a "three-dimensional petal structure" on the top of the inner ring flame cap 100.

[0069] Each inner ring protrusion 170 is provided with multiple inner ring main flame holes 140. The positions of the inner ring main flame holes 140 on each inner ring protrusion 170 are consistent. Those skilled in the art can set the number of inner ring protrusions 170 and the number and position of the inner ring main flame holes 140 on each inner ring protrusion 170 as needed; no single limitation is made here. This arrangement allows the multiple inner ring main flame holes 140 to be arranged in an array around the axis of the inner ring flame cap 100 at the top, which helps to improve the uniformity of the flame on the inner ring flame cap 100.

[0070] In one specific embodiment, the outlet of the inner ring main burner hole 140 is located on the side of the inner ring protrusion 170 opposite to the axis of the inner ring burner cap 100. The axis of the inner ring main burner hole 140 is inclined to the axis of the inner ring burner cap 100, and the distance between the top end of the inner ring main burner hole 140 and the axis of the inner ring burner cap 100 is greater than the distance between the bottom end of the inner ring main burner hole 140 and the axis of the inner ring burner cap 100.

[0071] Understandably, the main flame holes 140 of each inner ring gradually move away from the axis of the inner ring burner cap 100 from bottom to top. Those skilled in the art can adjust the angle between the axis of the main flame holes 140 and the axis of the inner ring burner cap 100 as needed; no single limitation is made here. When flames are formed at the locations of the multiple main flame holes 140 on the inner ring burner cap 100, the flame coverage is large, which helps to increase the effective contact area and uniformity between the flame of the inner ring burner cap 100 and the bottom of the pot. This facilitates a smooth transition of the temperature gradient across the bottom of the pot, achieving uniform temperature throughout the pot, which is beneficial for cooking scenarios such as frying where high temperature uniformity is required.

[0072] It is worth mentioning that the distance between the outlets of the inner ring main flame holes 140 on different inner ring protrusions 170 is relatively far. The annular flame formed at the ignition groove 150 on the side wall of the inner ring flame cap 100 can spread upward to ignite the gas ejected from the different inner ring main flame holes 140, so as to form flames at the different inner ring main flame holes 140.

[0073] like Figures 1 to 5 As shown, in one possible implementation, a brim 180 protrudes from the outer wall of the inner ring flame cap 100. In the axial direction of the inner ring flame cap 100, the brim 180 is located between the ignition hole 120 and the ignition groove 150. Both the ignition hole 120 and the flame-keeping hole 130 are located below the brim 180.

[0074] The brim 180 can be a sheet-like structure, with its extension direction parallel to the radial direction of the inner ring flame cap 100. The brim 180 can be integrally formed onto the side wall of the inner ring flame cap 100. Figure 1 As shown, along the axial direction of the inner ring flame cap 100, the visor 180 is spaced apart from the ignition hole 120 and the flame retention hole 130 below it, respectively.

[0075] When the ignition needle 500 of the gas stove is energized, an electric arc can be formed between its end and the portion of the cap 180 located above the ignition hole 120. This arc can ignite the gas ejected from the ignition hole 120. In one possible implementation, the top surface of the cap 180 can be connected to the bottom surface of the ignition groove 150, which facilitates the manufacture of the inner ring burner cap 100. Notably, the flame at the location of the flame retention hole 130 can pass over the cap 180 to ignite the gas ejected from the ignition groove 150.

[0076] By setting a brim 180 above the flameproof hole 130 and the ignition hole 120, on the one hand, the brim 180 can block part of the downward airflow, so that the flame at the positions of the flameproof hole 130 and the ignition hole 120 can burn stably; on the other hand, the brim 180 can block and guide the downward flow of oil-water mixture, preventing the oil-water mixture from clogging the ignition hole 120 or the flameproof hole 130, which helps to reduce the maintenance probability of the inner ring burner cap 100.

[0077] This application also provides a gas stove, such as Figures 6 to 9 As shown, the gas stove includes a burner head 200, a gas distribution seat 300, an outer ring burner cap 400, and the aforementioned inner ring burner cap 100. The gas distribution seat 300 is installed on the burner head 200, the outer ring burner cap 400 is placed on the gas distribution seat 300, and the inner ring burner cap 100 is placed on the middle of the outer ring burner cap 400. An ignition needle 500 and a thermocouple 600 are installed on the burner head 200. The ignition needle 500 is positioned opposite to the ignition hole 120 of the inner ring burner cap 100, and the thermocouple 600 is positioned opposite to the flame retention hole 130 of the inner ring burner cap 100.

[0078] The burner head 200 allows gas to flow into the gas distributor 300. Schematic, the outer ring burner cap 400 includes a mounting base and an annular channel located outside the mounting base. Thermocouple 600 and ignition needle 500 are located between the side wall of the inner ring burner cap 100 and the annular channel of the outer ring burner cap 400, respectively. The outer ring burner cap 400 has multiple outer ring main flame holes 410 communicating with the annular channel. The inner ring burner cap 100 can be placed on the mounting base and fixed thereto. The inner ring burner cap 100, outer ring burner cap 400, and gas distributor 300 can be locked together in layers to form a single integrated structure, reducing the likelihood of improper burner placement, thereby reducing the probability of gas leaks, flame leaks, and deflagration, improving the safety and reliability of the gas stove. It also has significant advantages in terms of even flame distribution, uniform combustion, and consistent heating of all parts of the cookware.

[0079] Figure 9The flame transmission process of the gas stove is shown. The flame at the ignition hole 120 can spread laterally to the flame retention hole 130. The flame at the flame retention hole 130 can spread upward to the ignition groove 150. The flame at the ignition groove 150 can spread upward to the inner ring main flame hole 140. The flame at the inner ring main flame hole 140 can spread outward to the outer ring main flame hole 410.

[0080] The gas stove provided in this application, due to the adoption of the aforementioned inner ring burner cap 100, allows the flame to spread quickly and stably during ignition, thus improving the user experience.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended 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 therein. Such 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.

Claims

1. An inner ring fire cover characterized by, The inner ring flame cap has an inner ring cavity; The inner ring flame cap has an ignition hole and a flame-preserving hole that communicate with the inner ring cavity respectively. The ignition hole is configured to be opposite to the ignition needle, and the flame-preserving hole is configured to be opposite to the thermocouple. The top of the inner ring flame cap is provided with an inner ring main flame hole that communicates with the inner ring cavity; An ignition groove communicating with the inner ring cavity is provided on the outer wall of the inner ring flame cap. The ignition groove is arranged around the axis of the inner ring flame cap and is located between the outlet of the flame-preserving hole and the outlet of the inner ring main flame hole.

2. The inner ring flame cap according to claim 1, characterized in that, The inner ring fire cover is also provided with a plurality of ignition holes, one end of each ignition hole is connected to the inner ring cavity, and the other end of each ignition hole is connected to the interior of the ignition groove.

3. The inner ring flame cap according to claim 2, characterized in that, The end of each ignition hole that communicates with the ignition groove is located on the bottom wall of the ignition groove, and the axis of each ignition hole is parallel to the axis of the inner ring fire cover.

4. The inner ring flame cap according to claim 2, characterized in that, The plurality of ignition holes are arranged at equal intervals around the axis of the inner ring fire cap.

5. The inner ring flame cap according to claim 1, characterized in that, The top of the inner ring flame cap has multiple inner ring protrusions that bulge upwards. These multiple inner ring protrusions are arranged around the axis of the inner ring flame cap, and each inner ring protrusion has multiple inner ring main flame holes.

6. The inner ring flame cap according to claim 5, characterized in that, The outlet of the inner ring main burner is located on the side of the inner ring protrusion away from the axis of the inner ring burner cap. The axis of the inner ring main burner is inclined to the axis of the inner ring burner cap. The distance between the top end of the inner ring main burner and the axis of the inner ring burner cap is greater than the distance between the bottom end of the inner ring main burner and the axis of the inner ring burner cap.

7. The inner ring flame cap according to claim 1, characterized in that, The height of the ignition groove is 0.8mm-1.5mm.

8. The inner ring flame cap according to claim 1, characterized in that, The distance between the top edge of the opening of the ignition groove and the axis of the inner ring flame cap is greater than the distance between the bottom edge of the opening of the ignition groove and the axis of the inner ring flame cap.

9. The inner ring flame cap according to claim 1, characterized in that, A brim is protruding on the outer wall of the inner ring flame cap. In the axial direction of the inner ring flame cap, the brim is located between the ignition hole and the ignition groove. Both the ignition hole and the flame-keeping hole are located below the brim.

10. A gas stove, characterized in that, The device includes a burner head, a gas distribution seat, an outer ring flame cap, and an inner ring flame cap as described in any one of claims 1-9. The gas distribution seat is installed on the burner head, the outer ring flame cap is placed on the gas distribution seat, and the inner ring flame cap is placed on the middle part of the outer ring flame cap. An ignition needle and a thermocouple are installed on the burner head. The ignition needle is arranged opposite to the ignition hole of the inner ring flame cap, and the thermocouple is arranged opposite to the flame-keeping hole of the inner ring flame cap.

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