Fire cover, combustor and stove

Abstract

The fire cover comprises a cover body, a first fire stabilizing groove and a plurality of fire outlet holes are formed in the side face of the periphery of the cover body, the first fire stabilizing groove and the fire outlet holes are distributed in the axial direction of the cover body, a first ignition outlet is formed in the groove wall of the first fire stabilizing groove, and the first ignition outlet communicates with the first fire stabilizing groove. And an ignition groove is omitted, so that the problem that the normal use of the fire cover is affected due to blockage of the ignition groove caused by the fact that food such as soup easily falls into the ignition groove can be solved.

Description

Technical Field

[0001] This application relates to the field of kitchenware technology, and in particular to a burner cap, burner and stove. Background Technology

[0002] A stove is a common kitchen appliance in daily life. A stove usually includes a pot rack and a burner. The pot rack is used to support the pots and pans. The burner is equipped with a flame outlet and an ignition channel. Combustible gas containing gas and air is sprayed out from the flame outlet and ignited by the ignition channel to produce a flame to heat the pots and pans.

[0003] However, in related technologies, the ignition channel is usually located at the top of the gas appliance. Soup, water, etc. can easily fall into the ignition channel, causing blockage and affecting the normal use of the burner cap. Summary of the Invention

[0004] This application provides a burner cap, burner, and stove that eliminates the need for an ignition groove, thereby eliminating the problem that food such as soup can easily fall into the ignition groove and cause blockage, which would affect the normal use of the burner cap.

[0005] In a first aspect, this application provides a flame cap, comprising: The cover has a first flame stabilizing groove and multiple flame outlets on its outer peripheral side. The first flame stabilizing groove and the flame outlets are arranged along the axial direction of the cover. The first ignition outlet is provided on the groove wall of the first flame stabilizing groove and is connected to the first flame stabilizing groove.

[0006] In some embodiments of this application, the first ignition outlet is disposed on the bottom wall of the first stabilizing tank.

[0007] In some embodiments of this application, a ignition guide groove is provided on the side wall of the first ignition stabilizing groove, and the ignition guide groove extends from the first ignition outlet to the opening of the first ignition stabilizing groove.

[0008] In some embodiments of this application, the cover is annular, the cover has a central through hole, and the inner peripheral side of the cover is provided with a first ignition inlet communicating with the central through hole, and the first ignition inlet communicating with the first ignition outlet.

[0009] In some embodiments of this application, the bottom of the cover is provided with a gas guide groove, and the flame outlet is connected to the gas guide groove.

[0010] In some embodiments of this application, a second ignition inlet is provided on the wall of the gas guide groove, and the second ignition inlet connects the gas guide groove and the first ignition outlet.

[0011] In some embodiments of this application, the cover is annular, the cover has a central through hole, and the air guide groove is provided with a partition structure, the partition structure being connected to the cover to divide the air guide groove into a first groove and a second groove; The plurality of flame outlets include a plurality of ignition holes and a plurality of ignition inlets. The plurality of ignition holes are all connected to the first groove body so as to be connected to the central through hole through the first groove body. The plurality of ignition inlets and the second ignition inlet are all connected to the second groove body.

[0012] In some embodiments of this application, a second flame stabilizing groove is further provided on the outer peripheral side of the cover, and a second ignition outlet communicating with the second flame stabilizing groove is provided on the groove wall of the second flame stabilizing groove; The second flame stabilizing groove and the first flame stabilizing groove are arranged along the axial direction of the cover, and the plurality of flame outlet holes are located between the first flame stabilizing groove and the second flame stabilizing groove.

[0013] In some embodiments of this application, the bottom of the cover is provided with a gas guide groove, and the second ignition outlet and the ignition hole are both connected to the gas guide groove.

[0014] In some embodiments of this application, multiple fire outlets are arranged circumferentially along the cover; Wherein, the first fire stabilizing groove extends around the circumference of the cover, and / or, the second fire stabilizing groove extends around the circumference of the cover.

[0015] In some embodiments of this application, the top of the cover is provided with a receiving groove and a discharge port. The receiving groove extends circumferentially along the cover, and the discharge port is located on the side of the receiving groove away from the center line of the cover and is connected to the receiving groove.

[0016] In some embodiments of this application, the fire outlet includes a fire inlet section, an expansion section, and a fire outlet section arranged sequentially along the extension direction of the fire outlet. The fire inlet section is located on the side of the fire outlet section near the center line of the cover. The flow area of ​​the expansion section is greater than the flow area of ​​the fire inlet section and the flow area of ​​the fire outlet section.

[0017] Secondly, this application also provides a burner, including an ejector and a flame cap as described in any of the above embodiments, wherein the ejector has a gas supply channel communicating with the flame outlet and the first ignition outlet.

[0018] Thirdly, this application also provides a stove, including a pot rack and a burner, wherein the pot rack is arranged around the outer periphery of the burner cap.

[0019] The beneficial effects of this application are as follows: When using the stove, the combustible gas ejected from the first ignition outlet can flow along the first flame stabilizer groove and be ignited by the ignition device to produce a flame. The flame spreads rapidly along the first flame stabilizer groove to form a flame band, thereby simultaneously igniting the combustible gas ejected from all the flame outlets around the first flame stabilizer groove, achieving rapid and uniform ignition. This eliminates the need for the ignition groove located on the top of the burner cap in related technologies, thus eliminating the problem that food such as soup can easily fall into the ignition groove and cause blockage, which would affect the normal use of the burner cap. Furthermore, in this application, ignition is achieved using a first flame-stabilizing groove located on the outer periphery of the cover. This prevents food such as soup or liquid from flowing into the ignition groove on the outer periphery. Even if food or liquid flows into the first flame-stabilizing groove along the outer periphery of the cover, it is less likely to completely block the groove. Food flowing into the first flame-stabilizing groove is more easily propelled out by the gas flow from the first ignition outlet. Additionally, concealing the first ignition outlet within the first flame-stabilizing groove provides protection and shielding, preventing food or liquid from flowing to and clogging the outlet. This prevents food from blocking the flame-stabilizing groove and the first ignition outlet, thus ensuring a stable flame within the first flame-stabilizing groove during stove use. Even if the flame at the outlet is extinguished, the flame within the first flame-stabilizing groove can reignite the flame at the outlet, resulting in a more stable flame and improved combustion stability of the stove. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only 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 flame cover from a first-view perspective in one embodiment of this application; Figure 2 This is a schematic diagram of the flame cover from a second perspective in one embodiment of this application; Figure 3 This is a schematic diagram of the flame cover from a third-person perspective in one embodiment of this application; Figure 4 This is a partial structural diagram of the flame cover in one embodiment of this application; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a partial structural diagram of the flame cover in one embodiment of this application; Figure 7 This is a partial structural diagram of the flame cover in one embodiment of this application; Figure 8 This is a schematic diagram of the burner structure in one embodiment of this application; Figure 9 This is a partial structural schematic diagram of the burner in one embodiment of this application; Figure 10 This is a schematic diagram of the stove in one embodiment of this application.

[0022] Figure label: 10. Fire cap; 20. Cover; 211. Outer peripheral side; 212. Inner peripheral side; 22. First stabilizing groove; 221. First groove opening; 231. Flame outlet; 231a. Flame inlet section; 231b. Expansion section; 231c. Flame outlet section; 232. Flame ignition hole; 233. Quick-fire hole; 241. First ignition outlet; 242. First ignition inlet; 243. Second ignition inlet; 244. Second ignition outlet; 25. Flame guide groove; 26. Central through hole; 27. Gas guide groove; 271. First groove body; 272. Second groove body; 28. Second stabilizing groove; 281. Second groove opening; 291. Material receiving groove; 292. Discharge port; 30. Divided structure; 40. Burner; 41. First gas chamber; 42. Second gas chamber; 43. Ejector; 431. Gas supply passage; 44. Inner ring cover; 45. Outer ring cover; 50. Stove; 51. Pot rack; K, center line. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] This application provides a burner cap, a burner, and a stove to solve the problem in related technologies where the ignition channel is usually located at the top of the gas appliance, and food such as soup or liquid can easily fall into the ignition channel, causing blockage and affecting the normal use of the burner cap.

[0025] Firstly, this application provides a flame cap 10, which is used in a burner 40; such as Figure 1 and Figure 2As shown, the flame cap 10 includes a cap body 20, which is the main body of the flame cap 10. The cap body 20 can be cylindrical, annular, or other shapes. The outer peripheral side 211 of the cap body 20 is provided with a first flame-stabilizing groove 22 and multiple flame outlet holes 231. The outer peripheral side 211 of the cap body 20 is the side surrounding the center line K of the cap body 20. The number of flame outlet holes 231 can be 2, 3, 4, or more; this application does not impose a specific limitation on the number of flame outlet holes 231. The first flame-stabilizing groove 22 and the flame outlet holes 231 are arranged along the axial direction of the cap body 20, which is perpendicular to the center line K of the cap body 20 (e.g., ...). Figure 4 The direction of extension is parallel to the direction of extension. Figure 4 Taking the shown perspective as an example, when using the fire cap 10, the center line K of the cap 20 is perpendicular to the horizontal plane, and the axis of the cap 20 is perpendicular to the horizontal plane.

[0026] The first ignition outlet 241 is provided on the wall of the first ignition stabilization tank 22. The first ignition outlet 241 is connected to the first ignition stabilization tank 22. The first ignition outlet 241 can be provided in one, two, three, four or more ways.

[0027] It should be noted that both the flame outlet 231 and the first ignition outlet 241 are used to supply combustible gas containing gas and primary air. When the stove 50 is used, the combustible gas ejected from the first ignition outlet 241 can flow along the first flame stabilizer 22 and be ignited by the ignition device to produce a flame. The flame spreads rapidly along the first flame stabilizer 22 to form a flame band, thereby simultaneously igniting the combustible gas ejected from all the flame outlets 231 around the first flame stabilizer 22, achieving rapid and uniform ignition.

[0028] Understandably, in this application, the ignition groove located on the top of the flame cover in the related technology has been removed, thereby eliminating the problem that food such as soup can easily fall into the ignition groove and cause blockage, which would affect the normal use of the flame cover 10.

[0029] Furthermore, in this application, ignition is achieved using a first stabilizing groove 22 located on the outer peripheral side 211 of the cover 20. This prevents food such as soup from easily flowing into the ignition groove on the outer peripheral side 211. Even if food such as soup flows into the first stabilizing groove 22 along the outer peripheral side 211 of the cover 20, it is less likely to completely block the first stabilizing groove 22. Moreover, food flowing into the first stabilizing groove 22 is more easily propelled out of the first stabilizing groove 22 by the gas flow from the first ignition outlet 241. Additionally, by concealing the first ignition outlet 241 within the first stabilizing groove 22, the first stabilizing groove 22 can be used as the first ignition outlet 24. 1. It provides protection and shielding, making it difficult for soup or other food to flow to the first ignition outlet 241 and cause blockage. This prevents food from blocking the first flame stabilizer 22 and the first ignition outlet 241, thus affecting the normal use of the burner cap 10. It ensures that there is always a stable flame in the first flame stabilizer 22 during the use of the stove 50. This means that even if the flame at the flame outlet 231 is blown out, the flame in the first flame stabilizer 22 can reignite the flame outlet 231, making the flame at the flame outlet 231 more stable and improving the combustion stability of the stove 50.

[0030] In some embodiments, the first ignition outlet 241 is disposed on the bottom wall of the first stabilizing tank 22. It is understood that the bottom wall of the first stabilizing tank 22 is disposed opposite to the opening of the first stabilizing tank 22 (hereinafter referred to as the first opening 221). Along the depth direction of the first stabilizing tank 22, the bottom wall of the first stabilizing tank 22 is located at the bottom, so that the first ignition outlet 241 can be hidden deeper in the first stabilizing tank 22, making it less likely for soup or other food to flow to the first ignition outlet 241, and making it easier for the flame burning at the first ignition outlet 241 to be ejected from the first opening 221 to ignite the flame outlet 231.

[0031] The first stabilizing groove 22 has a guiding groove 25 on its side wall. The guiding groove 25 extends from the first ignition outlet 241 to the first groove opening 221. The guiding groove 25 can guide and stabilize the flame ejected from the first ignition outlet 241, so that part of the flame ejected from the first ignition outlet 241 can be ejected along the guiding groove 25 to the first groove opening 221, thereby forming a more stable and accurate ignition path.

[0032] It should also be noted that the ignition channel 25 can be provided only on the upper or lower side wall of the first stabilizing channel 22, or it can be provided on both the upper and lower side walls of the first stabilizing channel 22. The ignition channel 25 can extend along the depth direction of the first stabilizing channel 22, or it can extend in other directions.

[0033] In some embodiments, a plurality of flame outlets 231 are arranged circumferentially along the cover 20, so that the plurality of flame outlets 231 can generate flames in various directions of the cover 20, thereby improving the combustion efficiency of the flame cover 10.

[0034] The first flame stabilizing groove 22 can extend around the circumference of the cover 20, so that the flame band formed in the first flame stabilizing groove 22 can simultaneously ignite the flame outlets 231 located in multiple directions, thereby achieving rapid and uniform ignition.

[0035] In some embodiments, multiple first ignition outlets 241 can be provided, and the multiple first ignition outlets 241 are arranged at intervals along the circumference of the cover 20, so that the multiple first ignition outlets 241 can generate flames in various directions of the cover 20 to ignite the flame outlet 231, thereby achieving rapid and uniform ignition. Even if some first ignition outlets 241 are blocked, it can still be ensured that some first ignition outlets 241 can be used normally, which can reduce the probability that the flame at the flame outlet 231 cannot be re-ignited normally after being blown out, and can improve the reliability and service life of the flame cover 10.

[0036] See also Figure 1 As shown, in some embodiments, the top of the lid 20 is provided with a receiving groove 291 and a discharge port 292. The receiving groove 291 extends circumferentially along the lid 20, and the discharge port 292 is located on the side of the receiving groove 291 away from the center line K of the lid 20, and is connected to the receiving groove 291. It can be understood that when soup drips onto the lid 20, the receiving groove 291 can be used to collect the soup, and then the soup can be discharged from the receiving groove 291 through the discharge port 292. By designing the position of the discharge port 292, the soup dripping onto the lid 20 can flow in a set direction and position, thereby preventing soup and other food from flowing to the periphery of the lid 20 and blocking the flame hole 231.

[0037] like Figure 2 and Figure 3 As shown, in some embodiments, the cover 20 is annular and has a central through hole 26. The cover 20 is an annular structure with a central through hole 26, which can reduce the overall weight of the flame cap 10. The inner peripheral side 212 of the cover 20 is provided with a first ignition inlet 242, which is connected to a first ignition outlet 241. The first ignition inlet 242 is connected to the first ignition outlet 241, so that the first ignition outlet 241 is connected to the central through hole 26 through the first ignition inlet 242.

[0038] It should be noted that the inner peripheral side surface 212 of the cover 20 refers to the inner peripheral wall surface of the central through hole 26. The inner peripheral side surface 212 of the cover 20 surrounds and forms the central through hole 26, and the axis of the central through hole 26 coincides with the center line K of the cover 20. The first ignition inlet 242 is used to connect the combustible gas and transmit the combustible gas to the first ignition outlet 241. Multiple first ignition inlets 242 can be provided, and one first ignition inlet 242 can be connected to one first ignition outlet 241. When the first ignition inlet 242 is set on the inner peripheral side surface 212 of the cover 20 and the flame cap 10 is applied to the burner 40, the central through hole 26 of the flame cap 10 can form a first gas chamber 41 with other structures on the burner 40 (such as...). Figure 9 The combustible gas supply channel 431 in the burner 40 is connected to the first gas chamber 41. After the combustible gas flows into the first gas chamber 41, the combustible gas in the first gas chamber 41 can flow to multiple first ignition outlets 241 through multiple first ignition inlets 242 at the same time, which can better achieve rapid and uniform ignition.

[0039] like Figures 3 to 5 As shown, in some embodiments, the bottom of the cover 20 is provided with a gas guide groove 27, and the flame outlet 231 communicates with the gas guide groove 27. When the flame cover 10 is applied to the burner 40, the gas guide groove 27 can form a second gas chamber 42 with other structures on the burner 40 (such as...). Figure 9 The combustible gas supply channel 431 in the burner 40 is connected to the second gas chamber 42. After the combustible gas flows into the second gas chamber 42, the combustible gas in the second gas chamber 42 can simultaneously flow to multiple ignition holes 231, which can better achieve rapid and uniform ignition.

[0040] In some embodiments, the gas guide groove 27 can extend half a circle, the lower half circle, a large half circle, or the entire circle along the circumference of the cover 20, so as to better utilize the gas guide groove 27 to provide combustible gas to multiple flame outlets 231 at the same time.

[0041] In some embodiments, a second ignition inlet 243 is provided on the wall of the gas guide groove 27. The second ignition inlet 243 can be provided on the bottom wall or side wall of the gas guide groove 27. The second ignition inlet 243 connects the gas guide groove 27 with the first ignition outlet 241, so that the first ignition outlet 241 is connected to the gas guide groove 27 through the second ignition inlet 243. This allows the combustible gas in the gas guide groove 27 to be transmitted to the first ignition outlet 241 through the second ignition inlet 243. Combustible gas can be provided to the first ignition outlet 241 simultaneously through the first ignition inlet 242 and the second ignition inlet 243, making the flame at the first ignition outlet 241 more stable. In addition, the second ignition inlet 243 is hidden inside the gas guide groove 27, making it less likely to come into contact with soup or other food. This allows the second ignition inlet 243 to provide combustible gas to the first ignition outlet 241 even if the first ignition inlet 242 is blocked, thereby further improving the reliability of the burner cap 10.

[0042] The second ignition inlet 243 can be provided in one, two, three or more ways. When there are multiple second ignition inlets 243, they can be arranged at intervals along the circumference of the cover 20. The number of second ignition inlets 243 can be the same as the number of first ignition outlets 241, and one second ignition inlet 243 can be connected to one first ignition outlet 241.

[0043] See also Figure 2 and Figure 3 As shown, in some embodiments, a partition structure 30 is provided in the air guide groove 27. The partition structure 30 is connected to the cover 20 to divide the air guide groove 27 into a first groove 271 and a second groove 272. The partition structure 30 can be connected to the cover 20 by a non-removable method such as welding or integral molding, or it can be connected to the cover 20 by a detachable method such as snap-fit ​​or threaded connection.

[0044] The multiple ignition holes 231 include multiple ignition holes 232 and multiple ignition inlets 233. The ignition holes 232 are all connected to the first groove 271, which in turn connects to the central through-hole 26. The multiple ignition inlets 233 and the second ignition inlet 243 are all connected to the second groove 272. It is understood that when the burner cap 10 is applied to the burner 40, the first groove 271 is connected to one gas supply channel 431 in the burner 40 via the central through-hole 26, and the second groove 272 is connected to another gas supply channel 431 in the burner 40. Combustible gas can be supplied to the ignition holes 232 and the ignition inlets 233 respectively through the two different gas supply channels 431, allowing the ignition holes 232 to operate independently.

[0045] It should also be noted that the combustible gas ejection volume of the simmering port 232 can be relatively small, allowing the simmering port 232 to output a weak and stable energy-concentrating flame (hereinafter referred to as a small flame). The small flame is more suitable for slow cooking needs (such as simmering bone broth, stewing Chinese medicine, cooking porridge, stewing sauce, etc.). The combustible gas ejection volume of the fast flame port 233 can be relatively large, allowing the simmering port 232 to output a high-power flame (hereinafter referred to as a large flame). The large flame is more suitable for fast heating needs (such as stir-frying meat, boiling water, frying eggs, etc.). Thus, the burner 40 can have different working modes to meet different usage needs.

[0046] Furthermore, when the burner 40 is in slow cooking mode, the combustible gas flows to the ignition port 232 through the central through hole 26 and the first groove 271. At this time, the combustible gas also flows to the first ignition outlet 241 through the central through hole 26 and the first ignition inlet 242, thereby ensuring the gas supply to the first ignition outlet 241. There is no need to provide an additional gas supply channel for the first ignition inlet 242, making the gas supply to the first ignition inlet 242 more convenient.

[0047] When the burner 40 switches to the fast heating mode, the combustible gas flows through the second groove 272 to the fast ignition port 233. At this time, the combustible gas can flow through the central through hole 26 and the first ignition inlet 242 to the first ignition outlet 241. At the same time, it will also flow through the second groove 272 and the second ignition inlet 243 to the first ignition outlet 241, making the gas supply to the first ignition outlet 241 more sufficient. This ensures that the flame at the first ignition outlet 241 is more stable, and there is no need to provide an additional gas supply channel for the second ignition inlet 243, making the gas supply to the second ignition inlet 243 more convenient.

[0048] In some embodiments, a plurality of fire holes 232 form a fire hole 232 group, and a plurality of fast fire holes 233 form a fast fire hole 233 group. The fire hole 232 group and the fast fire hole 233 group are arranged along the circumference of the cover 20, so that the plurality of fire holes 232 can be concentrated in a set area, so that the flames burning in the plurality of fire holes 232 can be more concentrated, and so that the connection between all fire holes 232 and the first groove 271 is simpler.

[0049] It should also be noted that, in this application, by setting multiple flame stabilization methods to ensure the stability of the flame burning at the burner hole 232, the flame at the burner hole 232 can be prevented from going out due to airflow or other reasons during the use of the burner 40. On this basis, a temperature detection element (such as a thermocouple sensor, a thermistor sensor, or an infrared temperature sensor) can be set at the burner hole 232 to detect the temperature. When the temperature detection element detects that the temperature at the burner hole 232 is lower than the set value, it means that the flame at the burner hole 232 is extinguished. At this time, the gas supply channel 431 can be shut off to prevent safety problems such as gas leakage. Moreover, since the flame at the burner hole 232 can be kept burning stably in this application, the problem of the burner 40 frequently stopping work due to the flame going out at the burner hole 232 can be prevented.

[0050] In some embodiments, the discharge port 292 may be misaligned with the fire hole 232 in the axial direction of the cover 20, such that the projection of the discharge port 292 does not coincide with the projection of the discharge port 292 on a plane perpendicular to the axial direction of the cover 20, thereby preventing the soup discharged from the discharge port 292 from flowing to the fire hole 232 and causing the fire hole 232 to go out.

[0051] See also Figure 2 As shown, in some embodiments, the outer peripheral side 211 of the cover 20 is also provided with a second flame stabilizing groove 28. The groove wall of the second flame stabilizing groove 28 is provided with a second ignition outlet 244 communicating with the second flame stabilizing groove 28. The second ignition outlet 244 can be provided with 1, 2, 3, 4 or more. It should be noted that the second ignition outlets 244 are all used for the emission of combustible gas. When the stove 50 is in use, the combustible gas emitted from the second ignition outlets 244 can flow along the second flame stabilizer 28 and be ignited by the ignition device to produce a flame. The flame spreads rapidly along the second flame stabilizer 28 to form a flame band, which can simultaneously ignite the combustible gas emitted from all the flame outlets 231 around the second flame stabilizer 28, achieving rapid and uniform ignition. This ensures that even if one of the first flame stabilizer 22 and the second flame stabilizer 28 is blocked, the other of the first flame stabilizer 22 and the second flame stabilizer 28 can still work normally, thus ensuring that the flame at the flame outlet 231 can reignite after being blown out, which can further improve the combustion stability of the stove 50.

[0052] The second flame stabilizer 28 and the first flame stabilizer 22 are arranged along the axial direction of the cover 20. Multiple flame outlets 231 are located between the first flame stabilizer 22 and the second flame stabilizer 28, so that all flame outlets 231 are distributed in the area between the first flame stabilizer 22 and the second flame stabilizer 28. Thus, the first flame stabilizer 22 can be used to provide ignition for the flame outlets 231 near the first flame stabilizer 22, and the second flame stabilizer 28 can be used to provide ignition for the flame outlets 231 near the second flame stabilizer 28. This can prevent the flame outlets 231 from being too far away from the first flame stabilizer 22 or the second flame stabilizer 28, which would prevent the combustible gas ejected from the flame outlets 231 from being ignited.

[0053] In some embodiments, the second ignition outlet 244 is disposed on the bottom wall of the second stabilizing tank 28. It is understood that the bottom wall of the second stabilizing tank 28 is disposed opposite to the opening of the second stabilizing tank 28 (hereinafter referred to as the second opening 281). Along the depth direction of the second stabilizing tank 28, the bottom wall of the second stabilizing tank 28 is located at the bottom, so that the second ignition outlet 244 can be hidden deeper in the second stabilizing tank 28, making it less likely for soup or other food to flow to the second ignition outlet 244, and making it easier for the flame burning at the second ignition outlet 244 to be ejected from the second opening 281 to ignite the flame outlet 231.

[0054] In some embodiments, the second flame stabilizing groove 28 can extend around the circumference of the cover 20, so that the flame band formed in the second flame stabilizing groove 28 can simultaneously ignite the flame outlets 231 located in multiple directions, thereby achieving rapid and uniform ignition.

[0055] In some embodiments, multiple second ignition outlets 244 may be provided, and the multiple second ignition outlets 244 are arranged at intervals along the circumference of the cover 20, so that the multiple second ignition outlets 244 can generate flames in various directions of the cover 20 to ignite the flame outlet 231, thereby achieving rapid and uniform ignition. Even if some of the second ignition outlets 244 are blocked, it can still be ensured that some of the second ignition outlets 244 can be used normally, which can reduce the probability that the flame at the flame outlet 231 cannot be re-ignited normally after being blown out, and can improve the reliability and service life of the flame cover 10.

[0056] like Figure 6 As shown, in some embodiments, the second ignition outlet 244 is connected to the gas guide groove 27, so that the combustible gas in the gas guide groove 27 can be transmitted to the second ignition outlet 244, thereby providing combustible gas through the gas guide groove 27 simultaneously through the first ignition outlet 241 and the second ignition outlet 244.

[0057] Furthermore, the second ignition outlet 244 is connected to the gas guide groove 27 through the quick-fire hole 233, so that the combustible gas in the gas guide groove 27 can flow to the second ignition outlet 244 through the quick-fire hole 233, thus eliminating the need to set up an additional gas transmission channel for the second ignition outlet 244 on the cover 20.

[0058] like Figure 7 As shown, in some embodiments, the flame outlet 231 includes a flame inlet section 231a, an expansion section 231b, and a flame outlet section 231c arranged sequentially along the extension direction of the flame outlet 231. The flame inlet section 231a is located on the side of the flame outlet section 231c that is close to the center line K of the cover 20. The flow area of ​​the expansion section 231b is greater than the flow area of ​​the flame inlet section 231a and the flow area of ​​the flame outlet section 231c, that is, the minimum cross-sectional area of ​​the expansion section 231b is greater than the cross-sectional area of ​​the flame inlet section 231a and the cross-sectional area of ​​the flame outlet section 231c.

[0059] Understandably, when combustible gas enters the ignition port 231, it flows sequentially along the inlet section 231a, the expansion section 231b, and the outlet section 231c. Due to the larger flow area of ​​the expansion section 231b, the flow velocity of the combustible gas decreases when it reaches the expansion section 231b, thereby increasing the residence time of the combustible gas in the ignition port 231. This allows the combustible gas to absorb more heat energy from the cover 20. Furthermore, the combustible gas expands in the expansion section 231b, making it easier to form turbulence. This allows the gas and air in the combustible gas to mix more thoroughly in the expansion section 231b, resulting in a higher uniformity and temperature of the combustible gas ejected from the ignition port 231. The flame produced by the combustion of the combustible gas is more stable and less prone to flameout or flame lift-off.

[0060] The cross-sectional shape of the expansion section 231b can be circular, elliptical, rectangular, triangular, prismatic, or other shapes. The fire-inlet section 231a, the expansion section 231b, and the fire-outlet section 231c can be arranged coaxially or with different axes.

[0061] Secondly, based on the aforementioned burner cap 10, this application also provides a burner 40, such as... Figure 8 and Figure 9 As shown, the burner 40 includes an ejector 43 and a flame cap 10 as described in any of the above embodiments. The ejector 43 has a gas supply passage 431 that communicates with the flame outlet 231 and the first ignition outlet 241, through which combustible gas is supplied to the flame outlet 231 and the first ignition outlet 241.

[0062] In some embodiments, the gas supply passage 431 may also be connected to the second ignition outlet 244 to transmit combustible gas to the second ignition outlet 244 through the gas supply passage 431.

[0063] It should also be noted that when the burner 40 includes an inner ring cover 44 and an outer ring cover 45, the outer ring cover 45 is arranged around the outer periphery of the inner ring cover 44, and at least one of the inner ring cover 44 and the outer ring cover 45 is the burner cover 10.

[0064] Thirdly, based on the aforementioned burner 40, this application also provides a stove 50, such as... Figure 10 As shown, the stove 50 includes a pot rack 51 and a burner 40 as described in any of the above embodiments. The pot rack 51 is arranged around the outer periphery of the burner cap 10. The pot rack 51 has a ring structure and can be a circular ring, a square hole, or other shapes. The shape of the pot rack 51 can be adapted to the overall shape of the burner cap 10.

[0065] It should be noted that when using the stove 50, the cookware (which can be a wok, pressure cooker, saucepan, frying pan, or other types) is placed on the pot rack 51. The burner 40, pot rack 51, and cookware together form a combustion space. The ring-shaped pot rack 51 can isolate the flame generated by the burner 40 from the external environment, reducing the impact of the low-temperature airflow on the flame and the loss of combustion heat. At the same time, it allows the high-temperature flue gas generated by the flame to stay in the combustion space for a longer time, so that the high-temperature flue gas has enough time to fully exchange heat with the bottom surface of the cookware, thereby improving the overall thermal efficiency of the stove 50.

[0066] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A flame cap, characterized in that, include: The cover has a first flame stabilizing groove and multiple flame outlets on its outer peripheral side. The first flame stabilizing groove and the flame outlets are arranged along the axial direction of the cover. The first ignition outlet is provided on the groove wall of the first flame stabilizing groove and is connected to the first flame stabilizing groove.

2. The flame cap according to claim 1, characterized in that, The first ignition outlet is located on the bottom wall of the first ignition stabilization tank.

3. The flame cap according to claim 2, characterized in that, A ignition guide groove is provided on the side wall of the first ignition stabilizing groove, which extends from the first ignition outlet to the opening of the first ignition stabilizing groove.

4. The flame cap according to claim 1, characterized in that, The cover is annular and has a central through hole. The inner circumferential side of the cover is provided with a first ignition inlet that communicates with the central through hole. The first ignition inlet communicates with the first ignition outlet.

5. The flame cap according to claim 1, characterized in that, The bottom of the cover is provided with a gas guide groove, and the flame outlet is connected to the gas guide groove.

6. The flame cap according to claim 5, characterized in that, A second ignition inlet is provided on the wall of the gas guide groove, and the second ignition inlet connects the gas guide groove and the first ignition outlet.

7. The flame cap according to claim 5, characterized in that, The cover is annular and has a central through hole. A partition structure is provided in the air guide groove. The partition structure is connected to the cover to divide the air guide groove into a first groove and a second groove. The plurality of flame outlets include a plurality of ignition holes and a plurality of ignition inlets. The plurality of ignition holes are all connected to the first groove body so as to be connected to the central through hole through the first groove body. The plurality of ignition inlets and the second ignition inlet are all connected to the second groove body.

8. The flame cap according to claim 1, characterized in that, The outer peripheral side of the cover is also provided with a second flame stabilizing groove, and the groove wall of the second flame stabilizing groove is provided with a second ignition outlet communicating with the second flame stabilizing groove. The second flame stabilizing groove and the first flame stabilizing groove are arranged along the axial direction of the cover, and the plurality of flame outlet holes are located between the first flame stabilizing groove and the second flame stabilizing groove.

9. The flame cap according to claim 8, characterized in that, The bottom of the cover is provided with a gas guide groove, and the second ignition outlet and the ignition hole are both connected to the gas guide groove.

10. The flame cap according to claim 8, characterized in that, Multiple fire outlets are arranged circumferentially along the cover; Wherein, the first fire stabilizing groove extends around the circumference of the cover, and / or, the second fire stabilizing groove extends around the circumference of the cover.

11. The flame cap according to claim 1, characterized in that, The top of the cover is provided with a receiving groove and a discharge port. The receiving groove extends circumferentially along the cover, and the discharge port is located on the side of the receiving groove away from the center line of the cover and is connected to the receiving groove.

12. The flame cap according to claim 1, characterized in that, The fire outlet includes a fire inlet section, an expansion section, and a fire outlet section arranged sequentially along the extension direction of the fire outlet. The fire inlet section is located on the side of the fire outlet section closer to the center line of the cover. The flow area of ​​the expansion section is greater than the flow area of ​​the fire inlet section and the flow area of ​​the fire outlet section.

13. A burner, characterized in that, It includes an ejector and a flame cap as described in any one of claims 1 to 12, wherein the ejector has a gas supply passage communicating with the flame outlet and the first ignition outlet.

14. A stove, characterized in that, It includes a pot rack and a burner as described in claim 13, the pot rack being arranged around the outer periphery of the burner cap.

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