Burner components and cooktops

Abstract

This invention discloses a burner assembly and a stove. The burner assembly includes a first burner and a second burner. The first burner is annular and has a first flame hole formed on its inner periphery. The second burner is annular and has a second flame hole formed on its inner periphery. The second burner is positioned above the first burner, and the inner diameter of the second burner is larger than that of the first burner. By positioning the second burner above the first burner and having a larger inner diameter than the first burner, this burner assembly allows for upward ignition of the second burner from its inner periphery when the first burner is successfully ignited, thus ensuring uniform flame distribution at the bottom of the pot. The assembly is simple in structure and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a burner assembly and a stove. Background Technology

[0002] In related technologies, multiple burners are combined to form a multi-ring structure, which makes the burner structure relatively complex. This results in poor air circulation inside the multiple burners, leading to poor flame uniformity. Summary of the Invention

[0003] The present invention provides a burner assembly and a stove.

[0004] This invention provides a burner assembly, the burner assembly comprising:

[0005] The first burner is annular and has a first flame hole formed on its inner periphery;

[0006] The second burner is annular and has a second flame hole formed on its inner periphery. The second burner is positioned above the first burner, and the inner diameter of the second burner is larger than that of the first burner.

[0007] The aforementioned burner assembly, by placing the second burner above the first burner and having an inner diameter larger than that of the first burner, allows the second burner to be ignited from the inner periphery by means of upward flame ignition when the first burner is successfully ignited, thereby ensuring the uniformity of the flame at the bottom of the pot. The structure is simple, convenient and quick.

[0008] In some embodiments, the inner diameter of the second burner is 1.2 to 2.5 times the inner diameter of the first burner.

[0009] This ensures that the flame generated by the burner assembly can better cover the bottom of the pot, thereby improving cooking efficiency.

[0010] In some embodiments, the inner diameter of the second burner is 1.5 times the inner diameter of the first burner.

[0011] In this way, by adjusting the appropriate position of the flame, the heating area of ​​the pot bottom and the cooking efficiency can be further improved while ensuring that the flame covers the bottom of the pot well.

[0012] In some embodiments, the first burner includes a first lower plate, a first upper plate disposed on the first lower plate, and a first partition plate. The first lower plate forms a first lower channel, and the first upper plate forms a first upper channel corresponding to the first lower channel. The first lower channel and the first upper channel form the first fire hole. The first partition plate is disposed between the first lower plate and the first upper plate and separates the first lower channel from the first upper channel.

[0013] The depth direction of the first fire hole forms an angle θ1 with the plane where the first upper plate is located, and the range of the angle θ1 is (0°, 90°).

[0014] This causes the first burner's first flame hole to tilt inward into a conical shape, thereby ensuring the flame concentration effect of the first burner and improving the flame intensity and heating efficiency of the first burner.

[0015] In some implementations, the θ1 angle ranges from (0° to 60°).

[0016] This ensures the flame concentration capability of the first burner, thereby improving heating efficiency.

[0017] In some implementations, the angle θ1 is 40°.

[0018] This ensures that the flame intensity generated by the first burner is relatively high, resulting in better heating of the bottom of the cooking appliance.

[0019] In some embodiments, the second burner includes a second lower plate, a second upper plate disposed on the second lower plate, and a second partition plate. The second lower plate forms a second lower channel, and the second upper plate forms a second upper channel corresponding to the second lower channel. The second lower channel and the second upper channel form a second flame hole. The second partition plate is disposed between the second lower plate and the second upper plate and separates the second lower channel from the second upper channel.

[0020] The depth direction of the second fire hole forms an angle θ2 with the plane where the second upper plate is located, and the range of the angle θ2 is (0°, 90°).

[0021] This causes the second burner's second flame hole to tilt inward into a conical shape, thereby ensuring the flame concentration effect of the second burner and improving the flame intensity and heating efficiency of the second burner.

[0022] In some implementations, the θ2 angle ranges from (0° to 60°).

[0023] This ensures the flame concentration capability of the second burner, thereby improving heating efficiency.

[0024] In some implementations, the θ2 angle is 40°.

[0025] This ensures that the flame intensity generated by the second burner is relatively high, resulting in better heating of the bottom of the cooking appliance.

[0026] In some embodiments, the first fire hole and the second fire hole have a first height difference, the first height difference being in the range of (15mm, 40mm).

[0027] This is to improve the ignition and heat dissipation efficiency of the burner assembly. When the initial height difference is greater than 40mm, the initial height difference is too large, making the distance between the first and second burners too far, making it difficult for the flame from the first burner to assist the ignition of the second burner. When the initial height difference is less than 15mm, the initial height difference is too small, making the distance between the first and second burners too close, resulting in poor heat dissipation and excessive heat inside the burner assembly, which may easily lead to safety hazards.

[0028] In some embodiments, the first fire hole and the second fire hole have a first height difference, the first height difference being in the range of (20mm, 30mm).

[0029] This further improves the ignition and heat dissipation efficiency of the burner assembly. When the initial height difference is greater than 30mm, the initial height difference is too large, making the distance between the first and second burners too far, making it difficult for the flame from the first burner to assist the second burner in ignition. When the initial height difference is less than 20mm, the initial height difference is too small, making the distance between the first and second burners too close, resulting in poor heat dissipation and excessive heat inside the burner assembly, which can easily lead to safety hazards.

[0030] In some embodiments, the first flame hole and the second flame hole have a first height difference, which is 23.65 mm.

[0031] This results in high ignition and heat dissipation efficiency of the burner assembly, thereby ensuring the safety of the burner assembly.

[0032] In some embodiments, the depth direction of the first burner hole is tilted relative to the radial direction of the first burner to form a first deflection angle, the first deflection angle being in the range of (0, 45°).

[0033] This causes the flame in the first burner hole to converge in a spiral pattern, thereby increasing the flame intensity and ensuring the combustion efficiency of the gas.

[0034] In some embodiments, the depth direction of the first burner hole is tilted relative to the radial direction of the first burner to form a first deflection angle, the first deflection angle being in the range of (0, 30°).

[0035] In this way, while ensuring the flame concentration of the first fire hole, the flame intensity and heating effect are further improved.

[0036] In some embodiments, the depth direction of the first burner hole is tilted relative to the radial direction of the first burner to form a first deflection angle, the first deflection angle being 30°.

[0037] In this way, while ensuring the flame concentration in the first fire hole, the flame intensity and heating efficiency are relatively high.

[0038] In some embodiments, the depth direction of the second burner is tilted relative to the radial direction of the second burner to form a second deflection angle, the second deflection angle being in the range of (0, 45°).

[0039] This causes the flame in the second burner hole to converge in a spiral pattern, thereby increasing the flame intensity and ensuring the combustion efficiency of the gas.

[0040] In some embodiments, the depth direction of the second burner is inclined relative to the radial direction of the second burner to form a second deflection angle, the second deflection angle being in the range of (0, 30°).

[0041] In this way, while ensuring the flame concentration of the second fire hole, the flame intensity and heating effect are further improved.

[0042] In some embodiments, the depth direction of the second burner is tilted relative to the radial direction of the second burner to form a second deflection angle of 30°.

[0043] In this way, while ensuring the flame concentration in the second fire hole, the flame intensity and heating efficiency are relatively high.

[0044] In some embodiments, the burner assembly includes a baffle plate disposed between the first burner and the second burner, the baffle plate having a second height difference with the top of the first burner hole and a third height difference with the bottom of the second burner hole, the third height difference being greater than the second height difference.

[0045] This ensures that the first and second burners maintain an appropriate distance from the baffle plate, thereby improving the airflow inside the burner assembly and thus increasing the combustion efficiency of the burner assembly.

[0046] In some embodiments, the range of the second height difference is (0, 8 mm).

[0047] This ensures that the top of the first burner and the guide vane maintain a suitable distance, thereby improving the supply of secondary air and thus increasing the combustion efficiency of the first burner.

[0048] In some implementations, the second height difference is 5 mm.

[0049] In this way, while ensuring an appropriate distance between the top of the first burner and the guide plate, the supply of secondary air is sufficient, resulting in a high combustion efficiency of the first burner.

[0050] In some implementations, the third height difference ranges from 0 to 15 mm.

[0051] This ensures that the bottom of the second burner is at a suitable distance from the baffle plate, thereby improving the supply of secondary air, increasing combustion efficiency, and ensuring the uniformity of the flame in the burner assembly.

[0052] In some implementations, the third height difference is 9 mm.

[0053] In this way, while ensuring an appropriate distance between the bottom of the second burner and the guide plate, the supply of secondary air is sufficient, resulting in high combustion efficiency and good flame uniformity of the burner assembly.

[0054] In some embodiments, the first lower plate is recessed to form a first lower channel, and the first upper plate is convex to form a first upper channel; and

[0055] The first lower channel and the first upper channel are directly opposite each other to form the first flame hole of the first burner.

[0056] Thus, the first upper channel of the first upper plate and the first lower channel of the first lower plate are arranged opposite each other so that the first flame holes of the first burner are aligned, thereby increasing the total area of ​​the flame holes of the first burner and thus increasing the flame intensity and load limit of the first burner.

[0057] In some embodiments, the second lower plate is recessed to form a second lower channel, and the second upper plate is convex to form a second upper channel; and

[0058] The second lower channel and the second upper channel are directly opposite each other to form the second burner's second fire hole.

[0059] Thus, the second upper channel of the second upper plate and the second lower channel of the second lower plate are arranged opposite each other so that the second flame holes of the second burner are aligned, thereby increasing the total area of ​​the flame holes of the second burner and thus increasing the flame intensity and load limit of the second burner.

[0060] In some embodiments, a first fire transmission gap is formed between the first upper plate and the first partition plate, and the first fire transmission gap connects two adjacent first fire holes.

[0061] This connects two adjacent independent first flame holes together, ensuring the formation of a complete flame and thus improving the ignition transmission capability and flameout resistance of the first burner.

[0062] In some embodiments, a second ignition gap is formed between the second upper plate and the second partition plate, and the second ignition gap connects two adjacent second ignition holes.

[0063] This connects two adjacent independent second flame holes together, ensuring the formation of a complete flame and thus improving the ignition transmission capability and flameout resistance of the second burner.

[0064] The present invention provides a stove, which includes the burner assembly described in any of the above embodiments.

[0065] In this way, by placing the second burner above the first burner, and with the inner diameter of the second burner being larger than that of the first burner, the second burner can be ignited from the inner periphery by the upward flame when the first burner is successfully ignited, thus ensuring the uniformity of the flame at the bottom of the pot. The structure is simple, convenient and quick.

[0066] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0067] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0068] Figure 1 This is a partial structural schematic diagram of the burner assembly according to an embodiment of the present invention;

[0069] Figure 2 yes Figure 1 Enlarged view of section A;

[0070] Figure 3 This is a top view of the first burner according to an embodiment of the present invention;

[0071] Figure 4 This is a top view of the second burner according to an embodiment of the present invention;

[0072] Figure 5 yes Figure 1 Another enlarged view of part A in the middle;

[0073] Figure 6 This is a structural schematic diagram of the stove according to an embodiment of the present invention.

[0074] Explanation of main component symbols: Stove-1000, Burner assembly-100, Burner head-200, First burner-10, Second burner-20, Baffle plate-30, First fire hole-11, First lower plate-12, First upper plate-13, First partition plate-14, First flame transfer gap-15, Second fire hole-21, Second lower plate-22, Second upper plate-23, Second partition plate-24, Second flame transfer gap-25, First lower channel-121, First upper channel-131, Second lower channel-221, Second upper channel-231. Detailed Implementation

[0075] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0076] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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 the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0077] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0078] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0079] This disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0080] Please see Figure 1 An embodiment of the present invention provides a burner assembly 100 including a first burner 10 and a second burner 20. The first burner 10 is annular and has a first flame hole 11 formed on its inner periphery. The second burner 20 is annular and has a second flame hole 21 formed on its inner periphery. The second burner 20 is disposed above the first burner 10, and the inner diameter D2 of the second burner is larger than the inner diameter D1 of the first burner.

[0081] The aforementioned burner assembly 100, by placing the second burner 20 above the first burner 10, and with the inner diameter D2 of the second burner being larger than the inner diameter D1 of the first burner, can ignite the second burner 20 from the inner periphery by means of upward flame ignition when the first burner 10 is successfully ignited, thereby ensuring the uniformity of the flame at the bottom of the pot. The structure is simple, convenient and quick.

[0082] Specifically, in one embodiment, the first burner 10 can be an inner ring burner, which can be used to provide an inner ring flame to ensure the flame intensity and heating uniformity in the middle of the pot bottom.

[0083] In detail, the inner periphery of the first burner 10 is formed with a plurality of first flame holes 11 to ensure that the plurality of first flame holes 11 form an inner ring flame outlet around the inner periphery, thereby providing an annular inner flame to ensure uniform heating of the center of the pot bottom.

[0084] In one embodiment, the second burner 20 can be an outer ring burner, which can be used to provide an outer ring flame to ensure the flame intensity and heating uniformity at the edge of the pot bottom.

[0085] In detail, the inner periphery of the second burner 20 is formed with a plurality of second flame holes 21 to ensure that the plurality of second flame holes 21 surround the inner periphery to form an outer ring flame outlet, thereby providing an annular outer flame to ensure uniform heating at the edge of the pot bottom.

[0086] The inner diameter D1 of the first burner can be the diameter of the inner periphery of the first burner 10, so as to provide an inner ring flame with a diameter of D1.

[0087] The inner diameter D2 of the second burner can be the diameter of the inner periphery of the second burner 20, so as to provide an outer ring flame with a diameter of D2.

[0088] It is understandable that the inner diameter D2 of the second burner is larger than the inner diameter D1 of the first burner, so as to ensure that the first burner 10 and the second burner 20 provide inner ring flame and outer ring flame respectively, and cooperate to ensure that the middle and edge of the pot bottom are heated evenly, so that the pot bottom is heated evenly as a whole, and thus ensure the uniformity of the flame at the bottom of the pot.

[0089] In one embodiment, the burner assembly 100 may have an ignition needle (not shown) between the first burner 10 and the second burner 20 for providing a discharge arc to ignite the gas at the first burner hole 11 to form an annular inner flame.

[0090] In addition, the annular inner flame generated by the first flame hole 11 can ignite the gas at the second flame hole 21 from the inner periphery by flame upward drawing to form an annular outer flame, thereby ensuring the flame uniformity of the burner assembly 100, which is convenient, quick and efficient with high ignition efficiency.

[0091] It is worth noting that the first burner 10 and the second burner 20 can be stably set at an appropriate distance to ensure that the air flows smoothly at the first fire hole 11 inside the burner assembly 100, thereby ensuring the normal operation of the first burner 10 and avoiding insufficient secondary air supply that would lead to insufficient intensity of the inner ring flame (or extinguishing), thus ensuring the uniformity of the flame at the bottom of the pot.

[0092] In one embodiment, the burner assembly 100 may be used by the first burner 10 alone, by the second burner 20 alone, or by a combination of the first burner 10 and the second burner 20, without any specific limitation.

[0093] In some embodiments, the inner diameter D2 of the second burner is 1.2 to 2.5 times the inner diameter D1 of the first burner.

[0094] This ensures that the flame generated by the burner assembly 100 can better cover the bottom of the pot, thereby improving cooking efficiency.

[0095] Specifically, in one embodiment, the inner diameter D1 of the first burner can be set to ensure that the annular flame generated by the first burner 10 can be located in the middle of the pot bottom, thereby improving the flame intensity in the middle of the pot bottom and ensuring that the middle of the pot bottom is heated evenly.

[0096] In one embodiment, the inner diameter D2 of the second burner is 1.2 to 2.5 times that of the inner diameter D1 of the first burner, so as to ensure that the flame generated by the burner assembly 100 heats the bottom of the pot evenly, thereby improving the gas utilization rate and cooking efficiency.

[0097] It is understandable that when the inner diameter of the first burner 10 is D1, the range of the inner diameter D2 of the second burner can be (1.2D1, 2.5D1), so that the flame generated by the second burner 20 can better cover the edge of the pot bottom, thereby ensuring that the middle and edge of the pot bottom are heated evenly and improving cooking efficiency.

[0098] That is, the range of the inner diameter D2 of the second burner is 2.5D1 > D2 > 1.2D1. In some examples, the inner diameter D2 of the second burner can be 1.3D1, 1.5D1, 1.6D1, 1.9D1, 2.0D1, 2.3D1, 2.4D1 or other values ​​between 1.2D1 and 2.5D1.

[0099] When the inner diameter D2 of the second burner is greater than 2.5D1, the inner diameter D2 of the second burner is too large, causing the outer ring flame generated by the second fire hole 21 to extend to the outside of the pot bottom. This results in an excessively large distance between the outer ring flame and the inner ring flame at the pot bottom, insufficient heating, and reduced flame uniformity of the burner assembly 100.

[0100] In addition, the outward extension of gas flow reduces gas utilization and may also pose a risk of burns to users due to the high temperature of the pot handle.

[0101] When the inner diameter D2 of the second burner is less than 1.2D1, the inner diameter D2 of the second burner is too small, which makes the outer ring flame generated by the second flame hole 21 close to the inner ring flame generated by the first flame hole 11. This results in excessive heating in the middle of the pot bottom and insufficient heating at the edge of the pot bottom, causing uneven heating of the entire pot bottom, which can easily lead to safety risks.

[0102] In some embodiments, the inner diameter D2 of the second burner is 1.5 times the inner diameter D1 of the first burner.

[0103] In this way, by adjusting the appropriate position of the flame, the heating area of ​​the pot bottom and the cooking efficiency can be further improved while ensuring that the flame covers the bottom of the pot well.

[0104] Specifically, in one embodiment, the inner diameter D2 of the second burner is 1.5 times the inner diameter D1 of the first burner, so that the inner ring flame generated by the first flame hole 11 and the outer ring flame generated by the second flame hole 21 are located at a suitable position on the bottom of the pot, thereby better ensuring the heat supply and flame uniformity of the bottom of the pot.

[0105] It is understandable that the inner diameter D2 of the second burner can be D2 = 1.5D1. While ensuring that the inner ring flame generated by the first burner 10 is located in the middle of the bottom of the pot, the outer ring flame generated by the second burner 20 just covers the edge of the bottom of the pot, thereby improving the flame uniformity of the burner assembly 100 and thus improving the gas utilization efficiency and cooking efficiency.

[0106] In one embodiment, for example, the inner diameter D1 of the first burner is 80mm, and since D2 = 1.5D1, the inner diameter D2 of the second burner is 120mm, so as to ensure that the flame generated by the burner assembly 100 can better cover the bottom of the pot, thereby ensuring the uniformity and intensity of the flame, and improving cooking efficiency and gas utilization.

[0107] In other embodiments, the inner diameter D1 of the first burner can also be other values, as long as D2 = 1.5D1 is guaranteed, and no specific restrictions are imposed here.

[0108] Please see Figure 2 In some embodiments, the first burner 10 includes a first lower plate 12, a first upper plate 13 disposed on the first lower plate 12, and a first partition plate 14. The first lower plate 12 forms a first lower channel 121, and the first upper plate 13 forms a first upper channel 131 corresponding to the first lower channel 121. The first lower channel 121 and the first upper channel 131 form a first flame hole 11. The first partition plate 14 is disposed between the first lower plate 12 and the first upper plate 13, separating the first lower channel 121 and the first upper channel 131. The depth direction of the first flame hole 11 forms an angle θ1 with the plane where the first upper plate 13 is located, and the angle θ1 ranges from (0° to 90°).

[0109] This causes the first flame hole 11 of the first burner 10 to tilt inward into a conical shape, thereby ensuring the flame concentration effect of the first burner 10 and improving the flame intensity and heating efficiency of the first burner 10.

[0110] Specifically, in one embodiment, the angle θ1 formed by the depth direction of the first burner hole 11 and the plane where the first upper plate 13 is located is in the range of (0°, 90°), so that the first burner hole 11 of the first burner 10 is inclined inward into a conical shape, thereby ensuring the flame concentration effect of the first burner 10 and improving the flame intensity of the first burner 10 to ensure the heating rate of the bottom of the cooking appliance.

[0111] It is understandable that when the angle formed between the depth direction of the first burner hole 11 and the plane where the first upper plate 13 is located exceeds the range of (0°, 90°), the flame of the first burner 10 spreads outward, resulting in poor flame concentration and easily causing the user to be burned or the flame to go out.

[0112] In one implementation, the angle θ1 ranges from (0° to 90°), i.e., 0° < θ1 < 90°. In some examples, the angle θ1 can be 5°, 10°, 30°, 45°, 60°, 75°, 85°, or other values ​​between 0° and 90°.

[0113] In one embodiment, a first partition plate 14 is disposed between a first lower plate 12 and a first upper plate 13 to divide the first flame hole 11 formed by the first lower channel 121 and the first upper channel 131 into two sub-flame holes, so that the sub-flame holes located on the upper and lower sides of the first partition plate 14 are independent of each other.

[0114] In other words, compared to the first burner hole 11, the cross-sectional area of ​​the sub-burner hole is relatively smaller, and the depth of the sub-burner hole is relatively deeper. At the moment the gas valve is closed, the path of the flame returning to the gas passage becomes relatively longer. When the flame reaches the gas passage, the flame is insufficient to reach the extreme conditions for deflagration, thus effectively solving the problem of flameout noise in the first burner 10.

[0115] The first partition plate 14 is disposed between the first lower channel 121 and the first upper channel 131, therefore the first partition plate 14 can be made of a high temperature and corrosion resistant material.

[0116] In one embodiment, the first partition plate 14 may be made of stainless steel. In other embodiments, the first partition plate 14 may be made of aluminum alloy, copper alloy, or other materials, without specific limitations.

[0117] In some implementations, the angle θ1 ranges from 0° to 60°.

[0118] This ensures the flame concentration capability of the first burner 10, thereby improving heating efficiency.

[0119] Specifically, in one embodiment, preferably, the angle θ1 formed by the depth direction of the first flame hole 11 and the plane where the first upper plate 13 is located is in the range of (0°, 60°), so that the first flame hole 11 of the first burner 10 is inclined inward into a conical shape, thereby ensuring that the flame formed by the first flame hole 11 of the first burner 10 better covers the bottom of the cooking appliance, thereby improving the heating rate of the first burner 10.

[0120] It is understandable that when the angle formed between the depth direction of the first flame hole 11 and the plane where the first upper plate 13 is located exceeds the range of (0°, 60°), the tilt angle of the flame of the first burner 10 increases, which weakens the flame concentration effect and thus reduces the heating rate of the first burner 10.

[0121] In one implementation, the angle θ1 ranges from (0° to 60°), i.e., 0° < θ1 < 60°. In some examples, the angle θ1 can be 5°, 10°, 15°, 25°, 30°, 45°, 50°, or other values ​​between 0° and 60°.

[0122] In some implementations, angle θ1 is 40°.

[0123] This ensures that the flame intensity generated by the first burner 10 is relatively large, resulting in better heating effect at the bottom of the cooking appliance.

[0124] Specifically, in one embodiment, preferably, the angle θ1 formed by the depth direction of the first flame hole 11 and the plane where the first upper plate 13 is located can be 40°. While ensuring that the first flame hole 11 of the first burner 10 is inclined inward into a conical shape, the flame is concentrated to cover the bottom of the cooking appliance, thereby ensuring a better heating effect at the bottom of the cooking appliance.

[0125] It is understandable that when the angle θ1 is 40°, the flame formed by the first burner 10 can better cover the bottom of the cooking appliance to ensure the heating effect of the bottom of the cooking appliance, thereby improving the gas utilization rate and thus improving the flame intensity and heating rate of the first burner 10.

[0126] In some embodiments, the second burner 20 includes a second lower plate 22, a second upper plate 23 disposed on the second lower plate 22, and a second partition plate 24. The second lower plate 22 forms a second lower channel 221, and the second upper plate 23 forms a second upper channel 231 corresponding to the second lower channel 221. The second lower channel 221 and the second upper channel 231 form a second flame hole 21. The second partition plate 24 is disposed between the second lower plate 22 and the second upper plate 23, separating the second lower channel 221 and the second upper channel 231. The depth direction of the second flame hole 21 forms an angle θ2 with the plane where the second upper plate 23 is located, and the angle θ2 ranges from (0° to 90°).

[0127] This causes the second flame hole 21 of the second burner 20 to tilt inward into a conical shape, thereby ensuring the flame concentration effect of the second burner 20 and improving the flame intensity and heating efficiency of the second burner 20.

[0128] Specifically, in one embodiment, the angle θ2 formed by the depth direction of the second burner hole 21 and the plane where the second upper plate 23 is located is in the range of (0°, 90°), so that the second burner hole 21 of the second burner 20 is inclined inward into a conical shape, thereby ensuring the flame concentration effect of the second burner 20 and improving the flame intensity of the second burner 20 to ensure the heating rate of the bottom of the cooking appliance.

[0129] It is understandable that when the angle formed between the depth direction of the second burner hole 21 and the plane where the second upper plate 23 is located exceeds the range of (0°, 90°), the flame of the second burner 20 spreads out along the outer periphery, resulting in poor flame concentration and easily causing burns and flameout to the user.

[0130] In one implementation, the angle θ2 ranges from (0° to 90°), i.e., 0° < θ2 < 90°. In some examples, the angle θ2 can be 5°, 10°, 30°, 45°, 60°, 75°, 85°, or other values ​​between 0° and 90°.

[0131] In one embodiment, the second partition plate 24 is disposed between the second lower plate 22 and the second upper plate 23 to divide the second flame hole 21 formed by the second lower channel 221 and the second upper channel 231 into two sub-flame holes, so that the sub-flame holes located on the upper and lower sides of the second partition plate 24 are independent of each other.

[0132] In other words, compared to the second burner hole 21, the cross-sectional area of ​​the sub-burner hole is relatively smaller, and the depth of the sub-burner hole is relatively deeper. At the moment the gas valve closes, the path of the flame returning to the gas passage becomes relatively longer. When the flame reaches the gas passage, the flame is insufficient to reach the limit conditions for deflagration, thus effectively solving the problem of flameout noise in the second burner 20.

[0133] The second partition plate 24 is disposed between the second lower channel 221 and the second upper channel 231, therefore the second partition plate 24 can be made of high temperature and corrosion resistant material.

[0134] In one embodiment, the second partition plate 24 may be made of stainless steel. In other embodiments, the second partition plate 24 may be made of aluminum alloy, copper alloy, or other materials, without specific limitations.

[0135] In some implementations, the range of angle θ2 is (0°, 60°).

[0136] This ensures the flame concentration capability of the second burner 20, thereby improving heating efficiency.

[0137] Specifically, in one embodiment, preferably, the angle θ2 formed by the depth direction of the second flame hole 21 and the plane where the second upper plate 23 is located is in the range of (0°, 60°), so that the second flame hole 21 of the second burner 20 is inclined inward into a conical shape, thereby ensuring that the flame formed by the second flame hole 21 of the second burner 20 better covers the bottom of the cooking appliance, thereby improving the heating rate of the second burner 20.

[0138] It is understandable that when the angle formed between the depth direction of the second flame hole 21 and the plane where the second upper plate 23 is located exceeds the range of (0°, 60°), the tilt angle of the flame of the second burner 20 increases, which weakens the flame concentration effect and thus reduces the heating rate of the second burner 20.

[0139] In one implementation, the range of angle θ2 is (0°, 60°), i.e., 0° < θ2 < 60°. In some examples, angle θ2 can be 5°, 10°, 15°, 25°, 30°, 45°, 50°, or other values ​​between 0° and 60°.

[0140] In some implementations, the angle θ2 is 40°.

[0141] This ensures that the flame intensity generated by the second burner 20 is relatively large, resulting in better heating of the bottom of the cooking appliance.

[0142] Specifically, in one embodiment, preferably, the angle θ2 formed by the depth direction of the second flame hole 21 and the plane where the second upper plate 23 is located can be 40°. While ensuring that the second flame hole 21 of the second burner 20 is inclined inward into a conical shape, the flame is concentrated to cover the bottom of the cooking appliance, thereby ensuring a better heating effect at the bottom of the cooking appliance.

[0143] It is understandable that when the θ2 angle is 40°, the flame formed by the second burner 20 can better cover the bottom of the cooking appliance to ensure the heating effect of the bottom of the cooking appliance, thereby improving the gas utilization rate and thus improving the flame intensity and heating rate of the second burner 20.

[0144] Please see Figure 1 In some embodiments, there is a first height difference H1 between the first fire hole 11 and the second fire hole 21, and the range of the first height difference H1 is (15mm, 40mm).

[0145] This improves the ignition and heat dissipation efficiency of the burner assembly 100. When the first height difference H1 is greater than 40mm, it is too large, causing the distance between the first burner 10 and the second burner 20 to be too far, making it difficult for the flame of the first burner 10 to assist the ignition of the second burner 20. When the first height difference H1 is less than 15mm, it is too small, causing the distance between the first burner 10 and the second burner 20 to be too close, resulting in poor heat dissipation and excessive heat inside the burner assembly 100, which could easily lead to safety hazards.

[0146] Specifically, in one embodiment, the first height difference H1 should be selected at an appropriate distance to ensure the normal operation and safe use of the first burner 10 and the second burner 20.

[0147] In one embodiment, the first height difference H1 can be in the range of (15mm, 40mm) to ensure the heat dissipation efficiency and ignition efficiency of the burner assembly 100, thereby improving the safety of the burner assembly 100.

[0148] That is, the range of the first height difference H1 can be (15mm, 40mm), i.e., 15mm < H1 < 40mm. In some examples, H1 can be 17mm, 19mm, 23mm, 25mm, 30mm, 32mm, 37mm or other values ​​between 15mm and 40mm.

[0149] When the first height difference H1 is greater than 40mm, the first height difference H1 is too large, which makes the distance between the first burner 10 and the second burner 20 too far, making it difficult for the flame of the first burner 10 to assist the second burner 20 in ignition, thereby reducing the ignition efficiency.

[0150] When the first height difference H1 is less than 15mm, the first height difference H1 is too small, which makes the distance between the first burner 10 and the second burner 20 too close, resulting in poor heat dissipation and excessive heat inside the burner assembly 100, which may easily cause safety hazards.

[0151] In some embodiments, there is a first height difference H1 between the first fire hole 11 and the second fire hole 21, and the range of the first height difference H1 is (20mm, 30mm).

[0152] This further improves the ignition and heat dissipation efficiency of the burner assembly 100. When the first height difference H1 is greater than 30mm, the first height difference H1 is relatively large, resulting in a greater distance between the first burner 10 and the second burner 20, leading to a lower flame-assisted ignition efficiency of the second burner 20 from the first burner 10. When the first height difference H1 is less than 20mm, the first height difference H1 is relatively small, resulting in a closer distance between the first burner 10 and the second burner 20, poor heat dissipation, and higher internal heat in the burner assembly 100, which may pose a safety hazard.

[0153] Specifically, in one embodiment, the first height difference H1 should be selected at an appropriate distance to ensure the normal operation and safe use of the first burner 10 and the second burner 20.

[0154] In one embodiment, preferably, the range of the first height difference H1 can be (20mm, 30mm) to further improve the heat dissipation efficiency and ignition efficiency of the burner assembly 100.

[0155] That is, the range of the first height difference H1 can be (20mm, 30mm), i.e., 20mm < H1 < 30mm. In some examples, H1 can be 21mm, 23mm, 24mm, 25mm, 26mm, 27mm, 29mm or other values ​​between 20mm and 30mm.

[0156] When the first height difference H1 is greater than 30mm, the first height difference H1 is relatively large, which makes the distance between the first burner 10 and the second burner 20 larger, resulting in a lower flame-assisted ignition efficiency of the second burner 20 from the first burner 10.

[0157] When the first height difference H1 is less than 20mm, the first height difference H1 is small, which makes the distance between the first burner 10 and the second burner 20 close, resulting in poor heat dissipation and high internal heat in the burner assembly 100, which can easily cause safety hazards.

[0158] In some embodiments, there is a first height difference H1 between the first flame hole 11 and the second flame hole 21, and the first height difference H1 is 23.65 mm.

[0159] This results in high ignition and heat dissipation efficiency of the burner assembly 100, thereby ensuring the safety of the burner assembly 100.

[0160] Specifically, in one embodiment, preferably, the first height difference H1 can be 23.65 mm, that is, the distance between the first flame hole 11 and the second flame hole 21 is 23.65 mm. While ensuring that there is a suitable heat dissipation space between the first burner 10 and the second burner 20, the first flame hole 11 can quickly assist the second flame hole 21 in ignition by flame upward, thereby improving the ignition efficiency and heat dissipation efficiency of the burner assembly 100.

[0161] It is understandable that when the first height difference H1 is 23.65mm, the flame generated by the first burner 10 is transmitted from the first fire hole 11 to the second fire hole 21 (from bottom to top), which can better ignite the gas at the second fire hole 21 from the inner periphery of the second burner 20 to form a double ring flame to cover the bottom of the pot, resulting in higher ignition efficiency.

[0162] In addition, with the first height difference H1 being 23.65 mm, the heat dissipation space between the first burner 10 and the second burner 20 is suitable, which can ensure that the air flows smoothly in the burner assembly 100. That is, the heat inside the burner assembly 100 can be removed by air cooling, thereby improving the heat dissipation efficiency and ensuring the safe operation of the burner assembly 100.

[0163] Please see Figure 3 In some embodiments, the depth direction of the first burner 11 is inclined relative to the radial direction of the first burner 10 to form a first deflection angle E, the first deflection angle E being in the range of (0, 45°).

[0164] This causes the flame in the first fire hole 11 to concentrate in a spiral pattern, thereby increasing the flame intensity and ensuring the combustion efficiency of the gas.

[0165] Specifically, in one embodiment, the first deflection angle E can be the angle formed by the radial inclination of the depth direction of the first flame hole 11 relative to the inner periphery of the first burner 10, which can be used to adjust the diameter of the annular flame to meet the heating requirements of the middle of the pot bottom.

[0166] It is understandable that the first deflection angle E should be selected at an appropriate angle so that the first fire hole 11 forms an annular flame of appropriate diameter, thereby improving the combustion efficiency of the gas, increasing the flame intensity, and thus ensuring the heating amount in the middle of the pot bottom.

[0167] In one implementation, the first deflection angle E can be in the range of (0, 45°), i.e., 0 < E < 45°. In some examples, E can be 5°, 8°, 10°, 25°, 30°, 35°, 40°, or other values ​​between 0 and 45°.

[0168] When the first deflection angle E is greater than 45°, the first deflection angle E is too large, which makes the diameter of the annular flame formed by the first flame hole 11 too large. This causes the flame to move relatively closer to the edge of the pot bottom, thereby reducing the heating amount in the middle of the pot bottom and increasing the heating amount at the edge of the pot bottom. This results in poor heating uniformity of the burner assembly 100 and reduced combustion efficiency of the gas.

[0169] In some embodiments, the depth direction of the first burner 11 is inclined relative to the radial direction of the first burner 10 to form a first deflection angle E, the first deflection angle E being in the range of (0, 30°).

[0170] In this way, while ensuring the flame concentration of the first fire hole 11, the flame intensity and heating effect are further improved.

[0171] Specifically, it can be understood that the smaller the angle of the first deflection angle E, the more the first deflection angle E tends to overlap radially with the first burner 10, resulting in a smaller heating area for the flame formed by the first fire hole 11, and a tendency to concentrate at the very center of the bottom of the pot.

[0172] In one embodiment, the first deflection angle E should be selected at an appropriate angle so that the first fire hole 11 forms an annular flame of a suitable diameter to cover the middle of the heated pot bottom, thereby further improving the flame intensity and heating effect.

[0173] In one embodiment, preferably, the first deflection angle E can be in the range of (0, 30°), i.e., 0 < E < 30°. In some examples, E can be 3°, 5°, 8°, 10°, 15°, 25°, 27°, or other values ​​between 0 and 30°.

[0174] When the first deflection angle E is greater than 30°, the first deflection angle E is relatively large, which makes the diameter of the annular flame formed by the first flame hole 11 larger. This causes the flame to move relatively closer to the edge of the pot bottom, thereby reducing the heating amount in the middle of the pot bottom and relatively increasing the heating amount at the edge of the pot bottom. This results in poor heating uniformity of the burner assembly 100 and reduced combustion efficiency of the gas.

[0175] In some embodiments, the depth direction of the first burner 11 is inclined relative to the radial direction of the first burner 10 to form a first deflection angle E, the first deflection angle E being 30°.

[0176] In this way, while ensuring the flame concentration of the first fire hole 11, the flame intensity and heating efficiency are relatively high.

[0177] Specifically, in one embodiment, preferably, the first deflection angle E can be 30°, that is, the depth direction of the first flame hole 11 is tilted at a radial angle of 30° relative to the first burner 10. While ensuring that the flame generated by the first burner 10 is spirally concentrated, the heating area of ​​the flame formed by the first flame hole 11 is more suitable, thereby making the flame intensity and heating effect of the first burner 10 higher.

[0178] It is understandable that when the first deflection angle E is 30°, the flame formed by the first fire hole 11 is distributed in a ring shape, which can better cover the middle part of the bottom of the pot (the target heating area), resulting in higher heating efficiency.

[0179] In addition, when the first deflection angle E is 30°, the depth direction of the first flame hole 11 is set to be inclined relative to the radial direction of the first burner 10, which can ensure that the distance between the flame formed by the first flame hole 11 and the center of the pot bottom is appropriate, thereby making the flame intensity greater.

[0180] In one embodiment, when the first deflection angle E is 30°, the flame formed by the first fire hole 11 spirals upward, causing the flame to overlap and concentrate in the middle of the bottom of the pot, ensuring a large flame intensity.

[0181] Please see Figure 4 In some embodiments, the depth direction of the second burner 21 is inclined relative to the radial direction of the second burner 20 to form a second deflection angle F, the second deflection angle F being in the range of (0, 45°).

[0182] This causes the flame in the second fire hole 21 to concentrate in a spiral pattern, thereby increasing the flame intensity and ensuring the combustion efficiency of the gas.

[0183] Specifically, in one embodiment, the second deflection angle F can be the angle formed by the radial inclination of the depth direction of the second flame hole 21 relative to the inner periphery of the second burner 20, which can be used to adjust the diameter of the outer ring flame to meet the heating requirements of the edge position of the pot bottom.

[0184] It is understandable that the second deflection angle F should be selected at an appropriate angle so that the second fire hole 21 forms an outer ring flame of appropriate diameter, thereby improving the combustion efficiency of the gas, increasing the flame intensity, and thus ensuring the heating amount at the edge of the pot bottom.

[0185] In one implementation, the second deflection angle F can be in the range of (0, 45°), i.e., 0 < F < 45°. In some examples, F can be 5°, 8°, 10°, 25°, 30°, 35°, 40°, or other values ​​between 0 and 45°.

[0186] When the second deflection angle F is greater than 45°, the second deflection angle F is too large, which makes the diameter of the outer ring flame formed by the second fire hole 21 too large. This causes the outer ring flame to extend to the outside of the pot bottom, thereby reducing the heating amount at the edge of the pot bottom. This results in poor heating uniformity of the burner assembly 100 and reduced combustion efficiency of the gas.

[0187] In some embodiments, the depth direction of the second burner 21 is inclined relative to the radial direction of the second burner 20 to form a second deflection angle F, the second deflection angle F being in the range of (0, 30°).

[0188] In this way, while ensuring the flame concentration of the second fire hole 21, the flame intensity and heating effect are further improved.

[0189] Specifically, it can be understood that the smaller the angle of the second deflection angle F, the more the second deflection angle F tends to overlap radially with the second burner 20, resulting in a smaller heating area for the flame formed by the second fire hole 21, and a tendency to concentrate at the edge of the pot bottom and inside it.

[0190] In one embodiment, the second deflection angle F should be selected at an appropriate angle so that the second fire hole 21 forms an outer ring flame of a suitable diameter to cover the edge of the heated pot bottom, thereby further improving the flame intensity and heating effect.

[0191] In one embodiment, preferably, the second deflection angle F can be in the range of (0, 30°), i.e., 0 < F < 30°. In some examples, F can be 3°, 5°, 8°, 10°, 15°, 25°, 27° or other values ​​between 0 and 30°.

[0192] When the second deflection angle F is greater than 30°, the second deflection angle F is relatively large, which makes the diameter of the outer ring flame formed by the second fire hole 21 larger. This causes the outer ring flame to extend to the outside of the pot bottom, thereby reducing the heating amount at the edge of the pot bottom. This results in poor heating uniformity of the burner assembly 100 and reduced combustion efficiency of the gas.

[0193] In some embodiments, the depth direction of the second burner 21 is inclined relative to the radial direction of the second burner 20 to form a second deflection angle F, which is 30°.

[0194] In this way, while ensuring the flame concentration of the second fire hole 21, the flame intensity and heating efficiency are relatively high.

[0195] Specifically, in one embodiment, preferably, the second deflection angle F can be 30°, that is, the depth direction of the second flame hole 21 is tilted at a radial angle of 30° relative to the second burner 20. While ensuring that the flame generated by the second burner 20 is spirally concentrated, the heating area of ​​the flame formed by the second flame hole 21 is more suitable, thereby making the flame intensity and heating effect of the second burner 20 higher.

[0196] It is understandable that when the second deflection angle F is 30°, the flame formed by the second fire hole 21 is distributed in a ring shape, which can better cover the edge of the pot bottom (target heating area), resulting in higher heating efficiency.

[0197] In addition, when the second deflection angle F is 30°, the depth direction of the second flame hole 21 is set to be radially inclined relative to the first burner 10, which can ensure that the distance between the flame formed by the second flame hole 21 and the edge of the pot bottom is appropriate, thereby making the flame intensity greater.

[0198] In one embodiment, when the second deflection angle F is 30°, the flame formed by the second fire hole 21 spirals upward, causing the flame to overlap and concentrate at the edge of the pot bottom, ensuring a large flame intensity.

[0199] Please see Figure 5 In some embodiments, the burner assembly 100 includes a baffle plate 30 disposed between the first burner 10 and the second burner 20. There is a second height difference H2 between the baffle plate 30 and the top of the first flame hole 11, and a third height difference H3 between the baffle plate 30 and the bottom of the second flame hole 21. The third height difference H3 is greater than the second height difference H2.

[0200] This ensures that the first burner 10 and the second burner 20 are kept at appropriate distances from the baffle 30, thereby improving the airflow inside the burner assembly 100 and thus improving the combustion efficiency of the burner assembly 100.

[0201] Specifically, in one embodiment, the baffle plate 30 is arranged in a funnel shape between the first burner 10 and the second burner 20, with the larger opening end located near the bottom of the second flame hole 21 and the smaller opening end located near the top of the first flame hole 11, so as to increase the space between the first burner 10 and the second burner 20, ensure the supply of secondary air, and thereby improve the combustion efficiency of the burner assembly 100.

[0202] In one embodiment, the second height difference H2 can be the distance between the guide plate 30 and the top of the first burner hole 11. The smaller the second height difference H2, the faster the secondary air reaches the first burner hole 11, thereby ensuring the combustion efficiency of the first burner 10.

[0203] In one embodiment, the third height difference H3 can be the distance between the guide plate 30 and the bottom of the second flame hole 21, so as to ensure that secondary air is quickly introduced into the interior of the burner assembly 100, thereby improving the combustion efficiency of the burner assembly 100.

[0204] It is understandable that the third height difference H3 is greater than the second height difference H2, which ensures that the distance between the guide plate 30 and the bottom of the second flame hole 21 is larger, so that the secondary air can be quickly introduced into the burner assembly 100 and provide sufficient secondary air into the burner assembly 100.

[0205] In addition, the third height difference H3 is greater than the second height difference H2, which ensures that the distance between the guide plate 30 and the top of the first flame hole 11 is small, so that the secondary air inside the burner assembly 100 is transported over a shorter distance and at a faster speed, thereby improving the combustion efficiency of the burner assembly 100.

[0206] It is worth noting that the baffle plate 30 is arranged in a funnel shape between the first burner 10 and the second burner 20. It can also be used to direct oil droplets generated during the cooking process into the oil cup (not shown) along the side wall of the baffle plate 30, thereby improving the cleanliness of the burner assembly 100.

[0207] In some implementations, the second height difference H2 ranges from 0 to 8 mm.

[0208] This ensures that the top of the first burner 10 is at a suitable distance from the baffle 30, thereby improving the supply of secondary air and thus increasing the combustion efficiency of the first burner 10.

[0209] Specifically, in one embodiment, the second height difference H2 should be selected at an appropriate distance to ensure the supply speed of secondary air to the first burner 11, thereby improving the combustion efficiency of the first burner 10.

[0210] In one embodiment, the range of the second height difference H2 can be (0, 8 mm) to provide sufficient secondary air in time, ensuring that the gas at the first burner hole 11 is fully combusted, thereby improving the combustion efficiency of the first burner 10.

[0211] That is, the range of the second height difference H2 can be (0, 8 mm), i.e., 0 < H2 < 8 mm. In some examples, H2 can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm or other values ​​between 0 and 8 mm.

[0212] When the second height difference H2 is greater than 8mm, the second height difference H2 is too large, which makes the time for secondary air to reach the first flame hole 11 too long, thereby reducing the combustion efficiency of the first burner 10 and the flame uniformity is low.

[0213] In some implementations, the second height difference H2 is 5 mm.

[0214] In this way, while ensuring a suitable distance between the top of the first burner 10 and the guide plate 30, the supply of secondary air is sufficient, resulting in a high combustion efficiency of the first burner 10.

[0215] Specifically, in one embodiment, preferably, the second height difference H2 can be 5mm, that is, the distance between the top of the first burner hole 11 and the guide plate 30 is 5mm. Under the condition of ensuring that there is a suitable distance between the top of the first burner 10 and the guide plate 30, the secondary air can quickly reach the first burner hole 11, thereby making the combustion efficiency of the first burner 10 higher.

[0216] It is understandable that when the second height difference H2 is 5mm, the gas at the first burner 11 can be fully combusted through secondary air, thereby making the combustion efficiency of the first burner 10 higher and thus improving the flame intensity.

[0217] In addition, when the second height difference H2 is 5mm, the distance between the first burner 10 and the guide plate 30 is relatively large, resulting in faster heat dissipation and thus ensuring the safe operation of the burner assembly 100.

[0218] In some implementations, the third height difference H3 ranges from 0 to 15 mm.

[0219] This ensures that the bottom of the second burner 20 is kept at a suitable distance from the baffle 30, thereby improving the supply of secondary air, increasing combustion efficiency, and ensuring the flame uniformity of the burner assembly 100.

[0220] Specifically, in one embodiment, the third height difference H3 should be selected at an appropriate distance to ensure that the gas in the second burner hole 21 is fully combusted, so as to allow sufficient secondary air to be introduced into the burner assembly 100, thereby ensuring the flame uniformity of the burner assembly 100.

[0221] In one implementation, the third height difference H3 can be in the range of (0, 15 mm), i.e., 0 < H3 < 15 mm. In some examples, H3 can be 1 mm, 3 mm, 4 mm, 7 mm, 9 mm, 10 mm, 13 mm, or other values ​​between 0 and 15 mm.

[0222] When the third height difference H3 is greater than 15mm, the third height difference H3 is too large, which makes the distance between the guide plate 30 and the second fire hole 21 too large, reducing stability and making it difficult to fix.

[0223] In addition, the third height difference H3 is too large, which makes the burner assembly 100 larger in size and occupies more space.

[0224] In some implementations, the third height difference H3 is 9 mm.

[0225] In this way, while ensuring a suitable distance between the bottom of the second burner 20 and the guide plate 30, the supply of secondary air is sufficient, resulting in higher combustion efficiency and better flame uniformity of the burner assembly 100.

[0226] Specifically, in one embodiment, preferably, the third height difference H3 can be 9mm, that is, the distance between the bottom of the second flame hole 21 and the guide plate 30 is 9mm. While ensuring that the gas in the second flame hole 21 is fully combusted, sufficient secondary air is introduced into the burner assembly 100, thereby making the combustion efficiency of the first burner 10 higher, and thus ensuring that the flame uniformity of the burner assembly 100 is better.

[0227] It is understandable that when the third height difference H3 is 9mm, the gas at the second burner 21 can be fully combusted through secondary air, thereby making the combustion efficiency of the second burner 20 higher and thus improving the flame intensity.

[0228] Furthermore, with a third height difference H3 of 9 mm, sufficient secondary air can quickly enter the burner assembly 100 through the third height difference H3 to accelerate airflow and heat dissipation. At the same time, sufficient secondary air can also reach the first flame hole 11 along the side wall of the guide plate 30 to ensure complete combustion of the gas in the first flame hole 11, thereby ensuring high combustion efficiency and good flame uniformity of the burner assembly 100.

[0229] Please see Figure 1 and Figure 2 In some embodiments, the first lower plate 12 is recessed to form a first lower channel 121, and the first upper plate 13 is convex to form a first upper channel 131. The first lower channel 121 and the first upper channel 131 are directly opposite to form the first flame hole 11 of the first burner 10.

[0230] Thus, the first upper channel 131 of the first upper plate 13 and the first lower channel 121 of the first lower plate 12 are arranged opposite each other so that the first flame hole 11 of the first burner 10 is formed opposite each other, thereby increasing the total area of ​​the flame hole of the first burner 10, and thus increasing the flame intensity and load limit of the first burner 10.

[0231] Specifically, the first lower plate 12 can be used to form the first fire hole 11, so the first lower plate 12 can be made of a high-temperature and corrosion-resistant material.

[0232] In one embodiment, the first lower plate 12 may be made of aluminum alloy to ensure its bending performance, thereby ensuring the formation of the first lower channel 121. In other embodiments, the first lower plate 12 may be made of other materials, and no specific limitation is made here.

[0233] Similarly, the first upper plate 13 can be used to form the first fire hole 11 with the first lower plate 12, so the first upper plate 13 can be made of high temperature and corrosion resistant material.

[0234] In one embodiment, the first upper plate 13 may be made of the same material as the first lower plate 12 to ensure the bending performance of the first upper plate 13, thereby ensuring the formation of the first upper channel 131. In other embodiments, the first upper plate 13 may also be made of other materials, and no specific limitation is made here.

[0235] It is understood that the first lower channel 121 and the first upper channel 131 are formed opposite each other to create a first flame hole 11 in a ring-like shape. Compared with a single first lower channel 121 or a single first upper channel 131 that are staggered, the total area of ​​the first flame hole 11 is increased, which increases the amount of gas burned and thus improves the flame intensity of the first burner 10.

[0236] In addition, compared with the burner without the first partition plate 14, the equivalent cross-sectional area of ​​the first flame hole 11 of this application remains unchanged, which can ensure that the first burner 10 has a larger flame and at the same time has excellent flame transmission and flame stabilization effects.

[0237] In some embodiments, the second lower plate 22 is recessed to form a second lower channel 221, and the second upper plate 23 is convex to form a second upper channel 231. The second lower channel 221 and the second upper channel 231 are directly opposite each other to form the second flame hole 21 of the second burner 20.

[0238] Thus, the second upper channel 231 of the second upper plate 23 and the second lower channel 221 of the second lower plate 22 are arranged opposite each other so that the second flame holes 21 of the second burner 20 are formed opposite each other, thereby increasing the total area of ​​the flame holes of the second burner 20, and thus increasing the flame intensity and load limit of the second burner 20.

[0239] Specifically, the second lower plate 22 can be used to form the second fire hole 21, so the second lower plate 22 can be made of a high-temperature and corrosion-resistant material.

[0240] In one embodiment, the second lower plate 22 may be made of aluminum alloy to ensure its bending performance, thereby ensuring the formation of the second lower channel 221. In other embodiments, the second lower plate 22 may be made of other materials, and no specific limitations are made here.

[0241] Similarly, the second upper plate 23 can be used to form the second fire hole 21 with the second lower plate 22, so the second upper plate 23 can be made of high temperature and corrosion resistant material.

[0242] In one embodiment, the second upper plate 23 may be made of the same material as the second lower plate 22 to ensure the bending performance of the second upper plate 23, thereby ensuring the formation of the second upper channel 231. In other embodiments, the second upper plate 23 may also be made of other materials, and no specific limitations are made here.

[0243] It is understood that the second lower channel 221 and the second upper channel 231 are formed opposite each other to create a second flame hole 21 in a ring-like shape. Compared with a single second lower channel 221 or a single second upper channel 231 that are staggered, the total area of ​​the second flame hole 21 is increased, which increases the amount of gas burned, thereby improving the flame intensity of the second burner 20.

[0244] In addition, compared with the burner without the second partition plate 24, the equivalent cross-sectional area of ​​the second flame hole 21 of this application remains unchanged, which can ensure that the second burner 20 has a larger flame and at the same time has excellent flame transmission and flame stabilization effects.

[0245] In some embodiments, a first fire transmission gap 15 is formed between the first upper plate 13 and the first partition plate 14, and the first fire transmission gap 15 connects two adjacent first fire holes 11.

[0246] This connects two adjacent independent first flame holes 11 together, thereby ensuring the formation of an integral flame and improving the flame transmission capability and flameout resistance of the first burner 10.

[0247] Specifically, in one embodiment, a first flame transfer gap 15 is formed between the first upper plate 13 and the first partition plate 14 to ensure that a connectable gap is formed between two adjacent first upper channels 131 in the first upper plate 13, so as to play the role of transferring flame and stabilizing flame.

[0248] It is understandable that during the ignition process of the first burner 10, the discharge arc can ignite the gas at the outlet of one of the first upper channels 131 through the ignition needle (not shown), and transmit the flame to the two adjacent first upper channels 131 through the first ignition gap 15, thereby forming a continuous flame, thus ensuring the ignition efficiency and ignition success rate.

[0249] During the continuous operation of the first burner 10, the first ignition gap 15 connects two adjacent first upper channels 131 and continuously replenishes secondary air to ensure that the gas in the two adjacent first upper channels 131 is fully combusted, so that the first burner 10 forms an overall continuous flame, thereby ensuring high flame intensity and good stability, and thus improving the flameout resistance of the first burner 10 and achieving the purpose of flame stabilization.

[0250] In one embodiment, the range of the first ignition gap 15 can be [0.50mm, 0.80mm], so that two adjacent independent first upper channels 131 are connected together to ensure the ignition and flame stabilization capabilities of the first burner 10.

[0251] That is, the first ignition gap 15 ranges from 0.50 mm to 0.80 mm. In some examples, the first ignition gap 15 can be 0.50 mm, 0.57 mm, 0.62 mm, 0.68 mm, 0.70 mm, 0.71 mm, 0.80 mm, or other values ​​between 0.50 mm and 0.80 mm.

[0252] When the first flame transfer gap 15 is less than 0.50 mm, the first flame transfer gap 15 is too small, resulting in low flame transfer efficiency and low secondary air replenishment efficiency, which makes the flame transfer capability of the first burner 10 poor.

[0253] When the first flame transfer gap 15 is greater than 0.80 mm, the first flame transfer gap 15 is too large, the flame stability is low, and the first burner 10 has poor resistance to flameout, making it easy to produce flameout and extinguishing phenomenon.

[0254] In some embodiments, a second flame transfer gap 25 is formed between the second upper plate 23 and the second partition plate 24, and the second flame transfer gap 25 connects two adjacent second flame holes 21.

[0255] This connects two adjacent independent second flame holes 21 together, thereby ensuring the formation of an integral flame and improving the flame transmission capability and flameout resistance of the second burner 20.

[0256] Specifically, in one embodiment, a second flame transfer gap 25 is formed between the second upper plate 23 and the second partition plate 24 to ensure that a connectable gap is formed between two adjacent second upper channels 231 in the second upper plate 23, so as to play the role of transferring flame and stabilizing flame.

[0257] It is understood that the second burner 20 can be ignited by the flame generated by the first burner 10 to ignite the gas at the second fire hole 21, and then transmit the flame to the two adjacent second upper channels 231 through the second ignition gap 25, thereby forming a continuous flame, thus ensuring ignition efficiency and ignition success rate.

[0258] During the continuous operation of the second burner 20, the second ignition gap 25 connects two adjacent second upper channels 231 and continuously replenishes secondary air to ensure that the gas in the two adjacent second upper channels 231 is fully combusted, so that the second burner 20 forms an overall continuous flame, thereby ensuring high flame intensity and good stability, and thus improving the flameout resistance of the second burner 20 and achieving the purpose of flame stabilization.

[0259] In one embodiment, the range of the second ignition gap 25 can be [0.50mm, 0.80mm], so that two adjacent independent second upper channels 231 are connected together to ensure the ignition and flame stabilization capabilities of the second burner 20.

[0260] That is, the second ignition gap 25 ranges from 0.50 mm to 0.80 mm. In some examples, the second ignition gap 25 can be 0.50 mm, 0.57 mm, 0.62 mm, 0.68 mm, 0.70 mm, 0.71 mm, 0.80 mm, or other values ​​between 0.50 mm and 0.80 mm.

[0261] When the second flame transfer gap 25 is less than 0.50 mm, the second flame transfer gap 25 is too small, resulting in low flame transfer efficiency and low secondary air replenishment efficiency, which makes the flame transfer capability of the second burner 20 poor.

[0262] When the second flame transfer gap 25 is greater than 0.80 mm, the second flame transfer gap 25 is too large, the flame stability is low, and the second burner 20 has poor resistance to flameout, making it easy to produce flameout and extinguishing phenomenon.

[0263] Please see Figure 6 The present invention provides a stove 1000, which includes the burner assembly 100 of any of the above embodiments.

[0264] Thus, the stove 1000, by placing the second burner 20 above the first burner 10, and with the inner diameter D2 of the second burner being larger than the inner diameter D1 of the first burner, can ignite the second burner 20 from the inner periphery by means of upward flame ignition when the first burner 10 is successfully ignited, thereby ensuring the uniformity of the flame at the bottom of the pot. The structure is simple, convenient and quick.

[0265] Specifically, in one embodiment, the stove 1000 can be a natural gas stove, a liquefied petroleum gas stove, or a coal gas stove.

[0266] It is understood that the cooktop 1000 includes a burner assembly 100, which includes at least one burner. For example, a single inner ring burner, a single outer ring burner, a dual-ring inner flame burner, or a multi-ring inner flame burner, etc.

[0267] In one embodiment, the cooktop 1000 includes a burner head 200, which includes a burner assembly 100, which includes at least one burner.

[0268] In one embodiment, the stove 1000 can be a single-burner stove, a double-burner stove, or a multi-burner stove.

[0269] like Figure 6 As shown, Figure 6 This is a schematic diagram of a dual-burner stove, where the burner 200 includes a burner assembly 100. The burner assembly 100 can be an outer ring burner, an inner ring burner, or a dual-ring burner formed by combining an outer ring burner and an inner ring burner; no specific restrictions are imposed here.

[0270] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0271] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A burner assembly, characterized in that, include: The first burner is annular and has multiple first flame holes formed on its inner periphery; The second burner is annular and has multiple second flame holes formed on its inner periphery. The second burner is positioned above the first burner, and the inner diameter of the second burner is larger than that of the first burner. The first burner includes a first lower plate, a first upper plate disposed on the first lower plate, and a first partition plate. The first lower plate forms a first lower channel, and the first upper plate forms a first upper channel corresponding to the first lower channel. The first lower channel and the first upper channel form the first fire hole. The first partition plate is disposed between the first lower plate and the first upper plate and separates the first lower channel from the first upper channel. The depth direction of the first fire hole forms an angle θ1 with the plane where the first upper plate is located, and the range of the angle θ1 is (0°, 90°). The first lower plate is recessed to form a first lower channel, and the first upper plate is convex to form a first upper channel; and The first lower channel and the first upper channel are directly opposite each other to form the first flame hole of the first burner; A first fire transmission gap is formed between the first upper plate and the first partition plate, and the first fire transmission gap connects two adjacent first fire holes.

2. The burner assembly according to claim 1, characterized in that, The inner diameter of the second burner is 1.2 to 2.5 times that of the inner diameter of the first burner.

3. The burner assembly according to claim 2, characterized in that, The inner diameter of the second burner is 1.5 times the inner diameter of the first burner.

4. The burner assembly according to claim 1, characterized in that, The range of the angle θ1 is (0°, 60°).

5. The burner assembly according to claim 1, characterized in that, The angle θ1 is 40°.

6. The burner assembly according to claim 1, characterized in that, The second burner includes a second lower plate, a second upper plate disposed on the second lower plate, and a second partition plate. The second lower plate forms a second lower channel, and the second upper plate forms a second upper channel corresponding to the second lower channel. The second lower channel and the second upper channel form a second fire hole. The second partition plate is disposed between the second lower plate and the second upper plate and separates the second lower channel from the second upper channel. The depth direction of the second fire hole forms an angle θ2 with the plane where the second upper plate is located, and the range of the angle θ2 is (0°, 90°).

7. The burner assembly according to claim 6, characterized in that, The range of the angle θ2 is (0°, 60°).

8. The burner assembly according to claim 6, characterized in that, The angle θ2 is 40°.

9. The burner assembly according to claim 1, characterized in that, There is a first height difference between the first fire hole and the second fire hole, and the range of the first height difference is (15mm, 40mm).

10. The burner assembly according to claim 1, characterized in that, There is a first height difference between the first fire hole and the second fire hole, and the range of the first height difference is (20mm, 30mm).

11. The burner assembly according to claim 1, characterized in that, There is a first height difference between the first flame hole and the second flame hole, which is 23.65 mm.

12. The burner assembly according to claim 1, characterized in that, The depth direction of the first burner hole is inclined relative to the radial direction of the first burner to form a first deflection angle, the first deflection angle being in the range of (0, 45°).

13. The burner assembly according to claim 1, characterized in that, The depth direction of the first flame hole is inclined relative to the radial direction of the first burner to form a first deflection angle, the first deflection angle being in the range of (0, 30°).

14. The burner assembly according to claim 1, characterized in that, The depth direction of the first flame hole is inclined relative to the radial direction of the first burner to form a first deflection angle, which is 30°.

15. The burner assembly according to claim 1, characterized in that, The depth direction of the second flame hole is inclined relative to the radial direction of the second burner to form a second deflection angle, the second deflection angle being in the range of (0, 45°).

16. The burner assembly according to claim 1, characterized in that, The depth direction of the second flame hole is inclined relative to the radial direction of the second burner to form a second deflection angle, the second deflection angle being in the range of (0, 30°).

17. The burner assembly according to claim 1, characterized in that, The depth direction of the second flame hole is inclined relative to the radial direction of the second burner to form a second deflection angle, which is 30°.

18. The burner assembly according to claim 1, characterized in that, The burner assembly includes a baffle plate disposed between the first burner and the second burner. There is a second height difference between the baffle plate and the top of the first burner hole, and a third height difference between the baffle plate and the bottom of the second burner hole. The third height difference is greater than the second height difference.

19. The burner assembly according to claim 18, characterized in that, The range of the second height difference is (0, 8 mm).

20. The burner assembly according to claim 19, characterized in that, The second height difference is 5mm.

21. The burner assembly according to claim 18, characterized in that, The range of the third height difference is (0, 15 mm).

22. The burner assembly according to claim 21, characterized in that, The third height difference is 9mm.

23. The burner assembly according to claim 6, characterized in that, The second lower plate is recessed to form a second lower channel, and the second upper plate is convex to form a second upper channel; and The second lower channel and the second upper channel are directly opposite each other to form the second burner's second fire hole.

24. The burner assembly according to claim 23, characterized in that, A second fire transmission gap is formed between the second upper plate and the second partition plate, and the second fire transmission gap connects two adjacent second fire holes.

25. A stove, characterized in that, The cooktop includes the burner assembly as described in any one of claims 1-24.

Images