Combustor assembly and kitchen range

Abstract

The invention discloses a burner assembly and a stove. The combustor assembly includes a first combustor and a second combustor. The first combustor is annular, and first fire holes are formed in the inner periphery of the first combustor. The second combustor is annular, second fire holes are formed in the inner periphery of the second combustor, the second combustor is arranged above the first combustor, and the inner diameter of the second combustor is larger than that of the first combustor. According to the burner assembly, the second burner is arranged above the first burner, the inner diameter of the second burner is larger than that of the first burner, and under the condition that the first burner is successfully ignited, the second burner can be ignited from the inner circumference in a flame upward-leading mode, so that the flame uniformity of the pot bottom is guaranteed, the structure is simple, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a burner assembly and a stove. Background Art

[0002] In the related art, a plurality of burners are combined to form a multi-ring structure, which makes the structure of the burner relatively complex, resulting in poor air circulation inside the plurality of burners and poor flame uniformity. Summary of the invention

[0003] Embodiments of the present invention provide a burner assembly and a cooker.

[0004] An embodiment of the present invention provides a burner assembly, the burner assembly comprising:

[0005] A first burner, the first burner is annular and has a first fire hole formed on the inner periphery;

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

[0007] The above-mentioned burner assembly, by arranging the second burner above the first burner, and the inner diameter of the second burner is larger than the inner diameter of the first burner, when the first burner is successfully ignited, the second burner can be ignited from the inner periphery by drawing the flame upward, thereby ensuring the uniformity of the flame at the bottom of the pot, and the structure is simple, convenient and fast.

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

[0009] In this way, it is ensured that the flame generated by the burner assembly can better cover the bottom of the pot, thereby improving cooking efficiency.

[0010] In certain 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 flame position, the heating area of ​​the pot bottom and the cooking efficiency can be further improved while ensuring that the flame covers the pot bottom 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 is formed with a first lower hole, the first upper plate is formed with a first upper hole corresponding to the first lower hole, the first lower hole and the first upper hole form the first fire hole, and the first partition plate is disposed between the first lower plate and the first upper plate, and separates the first lower hole from the first upper hole;

[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] In this way, the first fire hole of the first burner is inclined inwardly into a cone shape, thereby ensuring the flame gathering effect of the first burner, thereby improving the flame intensity and heating efficiency of the first burner.

[0015] In certain embodiments, the angle θ1 is in the range of (0°, 60°).

[0016] In this way, the flame focusing ability of the first burner is ensured, thereby improving the heating efficiency.

[0017] In certain embodiments, the θ1 angle is 40°.

[0018] In this way, it is ensured that the flame intensity formed by the first burner is greater, so that the heating effect of the bottom of the cooking utensil is better.

[0019] In some embodiments, the second burner includes a second lower plate, a second upper plate and a second partition plate disposed on the second lower plate, the second lower plate is formed with a second lower hole, the second upper plate is formed with a second upper hole corresponding to the second lower hole, the second lower hole and the second upper hole form the second fire hole, and the second partition plate is disposed between the second lower plate and the second upper plate and separates the second lower hole from the second upper hole;

[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] In this way, the second fire hole of the second burner is inclined inwardly into a cone shape, thereby ensuring the flame gathering effect of the second burner, thereby improving the flame intensity and heating efficiency of the second burner.

[0022] In certain embodiments, the angle θ2 is in the range of (0°, 60°).

[0023] In this way, the flame focusing ability of the second burner is ensured, thereby improving the heating efficiency.

[0024] In certain embodiments, the θ2 angle is 40°.

[0025] In this way, it is ensured that the flame intensity formed by the second burner is greater, so that the heating effect of the bottom of the cooking utensil is better.

[0026] In certain embodiments, there is a first height difference between the first fire hole and the second fire hole, and the first height difference is in the range of (15 mm, 40 mm).

[0027] In this way, the ignition efficiency and heat dissipation efficiency of the burner assembly are improved. When the first height difference is greater than 40 mm, the first height difference is too large, so that the distance between the first burner and the second burner is too far, and it is difficult to assist the ignition of the second burner by the flame of the first burner. When the first height difference is less than 15 mm, the first height difference is too small, so that the distance between the first burner and the second burner is too close, the heat dissipation effect is poor, and the internal heat of the burner assembly is too high, which is easy to cause safety hazards.

[0028] In certain embodiments, there is a first height difference between the first fire hole and the second fire hole, and the first height difference is in the range of (20 mm, 30 mm).

[0029] In this way, the ignition efficiency and heat dissipation efficiency of the burner assembly are further improved. When the first height difference is greater than 30 mm, the first height difference is too large, so that the distance between the first burner and the second burner is too far, and it is difficult to assist the ignition of the second burner by the flame of the first combustion. When the first height difference is less than 20 mm, the first height difference is too small, so that the distance between the first burner and the second burner is too close, the heat dissipation effect is poor, and the internal heat of the burner assembly is too high, which is easy to cause safety hazards.

[0030] In certain embodiments, there is a first height difference between the first fire hole and the second fire hole, and the first height difference is 23.65 mm.

[0031] In this way, the ignition efficiency and heat dissipation efficiency of the burner assembly are high, thereby ensuring the safety of the burner assembly.

[0032] In certain embodiments, a depth direction of the first fire hole is inclined relative to a radial direction of the first burner to form a first deflection angle, and the range of the first deflection angle is (0, 45°).

[0033] In this way, the flame of the first fire hole is gathered in a spiral shape to increase the flame intensity and ensure the combustion efficiency of the gas.

[0034] In certain embodiments, a depth direction of the first fire hole is inclined relative to a radial direction of the first burner to form a first deflection angle, and the range of the first deflection angle is (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, a depth direction of the first fire hole is inclined relative to a radial direction of the first burner to form a first deflection angle, and the first deflection angle is 30°.

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

[0038] In certain embodiments, a depth direction of the second fire hole is inclined relative to a radial direction of the second burner to form a second deflection angle, and the range of the second deflection angle is (0, 45°).

[0039] In this way, the flame of the second fire hole is gathered in a spiral shape to increase the flame intensity and ensure the combustion efficiency of the gas.

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

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

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

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

[0044] In some embodiments, the burner assembly includes a guide plate, which is arranged between the first burner and the second burner, and there is a second height difference between the guide plate and the top of the first fire hole, and there is a third height difference between the guide plate and the bottom of the second fire hole, and the third height difference is greater than the second height difference.

[0045] In this way, the first burner, the second burner and the guide plate are respectively kept at an appropriate distance to improve the air flow inside the burner assembly, thereby improving the combustion efficiency of the burner assembly.

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

[0047] In this way, a suitable distance is maintained between the top of the first burner and the guide plate to improve the supply of secondary air, thereby improving the combustion efficiency of the first burner.

[0048] In certain embodiments, the second height difference is 5 mm.

[0049] In this way, while ensuring that there is an appropriate distance between the top of the first burner and the guide plate, the supply of secondary air is sufficient, thereby making the combustion efficiency of the first burner higher.

[0050] In some embodiments, the third height difference is in the range of (0, 15 mm).

[0051] In this way, the bottom of the second burner is kept at an appropriate distance from the guide plate to improve the supply of secondary air, thereby improving the combustion efficiency and ensuring the flame uniformity of the burner assembly.

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

[0053] In this way, while ensuring that there is an appropriate distance between the bottom of the second burner and the guide plate, the supply of secondary air is sufficient, so that the combustion efficiency of the burner assembly is higher and the flame uniformity is better.

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

[0055] The first lower hole and the first upper hole are opposite to each other to form a first fire hole of the first burner.

[0056] In this way, the first upper channel of the first upper plate and the first lower channel of the first lower plate are arranged opposite to each other, so that the first fire holes of the first burner are formed opposite to each other, thereby increasing the total area of ​​the fire holes of the first burner, and further increasing the flame intensity and load upper limit of the first burner.

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

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

[0059] In this way, the second upper channel of the second upper plate and the second lower channel of the second lower plate are arranged opposite to each other, so that the second fire holes of the second burner are formed opposite to each other, thereby increasing the total area of ​​the fire holes of the second burner, and further increasing the flame intensity and load upper limit of the second burner.

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

[0061] In this way, two adjacent independent first fire holes are connected together, thereby ensuring the formation of an integral flame, thereby improving the fire transfer capability and anti-fire-out capability of the first burner.

[0062] In some embodiments, a second fire transfer gap is formed between the second upper plate and the second partition plate, and the second fire transfer gap communicates with two adjacent second fire holes.

[0063] In this way, two adjacent independent second fire holes are connected together, thereby ensuring the formation of an integral flame, thereby improving the fire transfer capability and anti-fire-out capability of the second burner.

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

[0065] In this way, the stove sets the second burner above the first burner, and the inner diameter of the second burner is larger than the inner diameter of the first burner. When the first burner is ignited successfully, the second burner can be ignited from the inner periphery by drawing the flame upward, thereby ensuring the uniformity of the flame at the bottom of the pot. The structure is simple, convenient and fast.

[0066] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0069] Figure 2 yes Figure 1 A magnified view of part A;

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

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

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

[0073] Figure 6 Schematic diagram of the structure of a cooker according to an embodiment of the present invention.

[0074] Explanation of the main component symbols: stove-1000, burner assembly-100, burner head-200, first burner-10, second burner-20, guide plate-30, first fire hole-11, first lower plate-12, first upper plate-13, first partition plate-14, first fire transfer gap-15, second fire hole-21, second lower plate-22, second upper plate-23, second partition plate-24, second fire transfer gap-25, first lower channel-121, first upper channel-131, second lower channel-221, second upper channel-231. DETAILED DESCRIPTION

[0075] The 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 throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0076] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0077] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0079] The disclosure herein provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described herein. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may appreciate the application of other processes and / or the use of other materials.

[0080] See also Figure 1 A burner assembly 100 provided in an embodiment of the present invention includes a first burner 10 and a second burner 20. The first burner 10 is annular and has a first fire hole 11 formed on the inner periphery. The second burner 20 is annular and has a second fire hole 21 formed on the inner periphery. The second burner 20 is arranged 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 burner assembly 100 is configured such that 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. When the first burner 10 is ignited successfully, the second burner 20 can be ignited from the inner periphery by drawing the flame upward, thereby ensuring the uniformity of the flame at the bottom of the pot. The structure is simple and convenient.

[0082] Specifically, in one embodiment, the first burner 10 may be an inner ring burner, which may 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 fire holes 11 to ensure that the plurality of first fire holes 11 are surrounded by an inner ring fire outlet on the inner periphery to provide an annular inner flame to ensure uniform heating of the middle part of the pot bottom.

[0084] In one embodiment, the second burner 20 may be an outer ring burner, which may 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 fire holes 21 to ensure that the plurality of second fire holes 21 are surrounded by the inner periphery to form an outer ring fire outlet, thereby providing an annular outer flame to ensure uniform heating of the edge of the pot bottom.

[0086] The inner diameter D1 of the first burner may be the diameter of the inner circumference of the first burner 10 to provide an inner ring flame with a diameter of D1.

[0087] The inner diameter D2 of the second burner may be the diameter of the inner circumference of the second burner 20 to provide an outer ring flame with a diameter of D2.

[0088] It can be understood that the inner diameter D2 of the second burner is larger than the inner diameter D1 of the first burner to ensure that the first burner 10 and the second burner 20 respectively provide inner ring flame and outer ring flame, and cooperate with each other to ensure that the middle and edge positions of the bottom of the pot are heated evenly, so that the bottom of the pot is heated evenly as a whole, thereby ensuring the uniformity of the flame of the bottom of the pot.

[0089] In one embodiment, the burner assembly 100 may be provided with 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 flame hole 11 to form an annular inner flame.

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

[0091] It is worth mentioning that the first burner 10 and the second burner 20 can be stably set at an appropriate distance to ensure smooth air flow 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 replenishment that causes insufficient intensity (or extinction) of the inner ring flame, thereby ensuring the overall flame uniformity of the pot bottom.

[0092] In one embodiment, the burner assembly 100 can be used by the first burner 10 alone, can be used by the second burner 20 alone, or can be used by the first burner 10 and the second burner 20 in combination, which is not specifically limited herein.

[0093] In certain 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] In this way, it is ensured that the flame generated by the burner assembly 100 can better cover the bottom of the pot, thereby improving the cooking efficiency.

[0095] Specifically, in one embodiment, the inner diameter D1 of the first burner may be set to ensure that the annular flame generated by the first burner 10 can be better located in the middle of the pot bottom to increase the flame intensity in the middle of the pot bottom and ensure 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 the inner diameter D1 of the first burner to ensure that the flame generated by the burner assembly 100 heats the bottom of the pot evenly, thereby improving gas utilization and cooking efficiency.

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

[0098] That is, the inner diameter D2 of the second burner is in the range of 2.5D1>D2>1.2D1. In some examples, the inner diameter D2 of the second burner may 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, resulting in a 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 the gas reduces the utilization rate of the gas, and there is also a risk of high temperature of the pot handle causing scalding to the user.

[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, so that the outer ring flame generated by the second fire hole 21 is close to the inner ring flame generated by the first fire hole 11, resulting in excessive heating of the middle part of the bottom of the pot and insufficient heating of the edge of the bottom of the pot, making the overall bottom of the pot heated unevenly, which may easily cause safety risks.

[0102] In certain 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 flame position, the heating area of ​​the pot bottom and the cooking efficiency can be further improved while ensuring that the flame covers the pot bottom 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 fire hole 11 and the outer ring flame generated by the second fire hole 21 are located at appropriate positions on the bottom of the pot, thereby better ensuring the heat supply and flame uniformity of the bottom of the pot.

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

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

[0107] In other embodiments, the inner diameter D1 of the first burner may also be other values, as long as D2=1.5D1 is ensured, and no specific limitation is made here.

[0108] See also 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 is formed with a first lower channel 121, the first upper plate 13 is formed with 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 fire hole 11, and the first partition plate 14 is disposed between the first lower plate 12 and the first upper plate 13, and separates the first lower channel 121 from the first upper channel 131. The depth direction of the first fire hole 11 forms an angle θ1 with the plane where the first upper plate 13 is located, and the range of the angle θ1 is (0°, 90°).

[0109] In this way, the first fire hole 11 of the first burner 10 is inclined inwardly into a cone shape, thereby ensuring the flame gathering effect of the first burner 10 , thereby improving the flame intensity and heating efficiency of the first burner 10 .

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

[0111] It can be understood that when the angle formed by the depth direction of the first fire 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 along the periphery, resulting in poor flame gathering effect, which can easily cause the risk of scalding to users or flameout.

[0112] In one embodiment, the range of the θ1 angle is (0°, 90°), that is, 0°<θ1<90°. In some examples, the θ1 angle can be 5°, 10°, 30°, 45°, 60°, 75°, 85° or other values ​​between 0° and 90°.

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

[0114] That is, the cross-sectional area of ​​the sub-fire hole is relatively reduced and the depth of the sub-fire hole is relatively deepened compared to the first fire hole 11. At the moment when the gas valve is closed, the path of the flame return gas channel becomes relatively longer. When the flame reaches the gas channel, the flame is not enough to reach the limit condition of deflagration, so the problem of flameout noise of the first burner 10 can be effectively solved.

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

[0116] In one embodiment, the first partition plate 14 may be made of a stainless steel partition plate. In other embodiments, the first partition plate 14 may be made of an aluminum alloy partition plate, a copper alloy partition plate, or a partition plate of other materials, which is not specifically limited here.

[0117] In certain embodiments, the angle θ1 is in the range of (0°, 60°).

[0118] In this way, the flame focusing ability of the first burner 10 is ensured, thereby improving the heating efficiency.

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

[0120] It can be understood that when the angle formed by the depth direction of the first fire hole 11 and the plane where the first upper plate 13 is located exceeds the range of (0°, 60°), the inclination angle of the flame of the first burner 10 increases, so that the focusing effect of the flame is weakened, thereby reducing the heating rate of the first burner 10.

[0121] In one embodiment, the range of the θ1 angle is (0°, 60°), that is, 0°<θ1<60°. In some examples, the θ1 angle can be 5°, 10°, 15°, 25°, 30°, 45°, 50° or other values ​​between 0° and 60°.

[0122] In certain embodiments, the angle θ1 is 40°.

[0123] In this way, it is ensured that the flame intensity formed by the first burner 10 is relatively large, so that the heating effect of the bottom of the cooking utensil is better.

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

[0125] It can be understood that when the angle θ1 is 40°, the flame formed by the first burner 10 can better cover the bottom of the cooking utensil to ensure the heating effect of the bottom of the cooking utensil, thereby improving the gas utilization rate and further 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 is formed with a second lower channel 221, the second upper plate 23 is formed with 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 fire hole 21, and the second partition plate 24 is disposed between the second lower plate 22 and the second upper plate 23, and separates the second lower channel 221 from the second upper channel 231. The depth direction of the second fire hole 21 forms an angle θ2 with the plane where the second upper plate 23 is located, and the range of the angle θ2 is (0°, 90°).

[0127] In this way, the second fire hole 21 of the second burner 20 is inclined inwardly into a cone shape, thereby ensuring the flame gathering effect of the second burner 20 , and further improving the flame intensity and heating efficiency of the second burner 20 .

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

[0129] It can be understood that when the angle formed by the depth direction of the second fire 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 along the periphery, resulting in poor flame gathering effect, which can easily cause burns to users and flameout.

[0130] In one embodiment, the range of the θ2 angle is (0°, 90°), that is, 0°<θ2<90°. In some examples, the θ2 angle 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, and is used to separate the second fire hole 21 formed by the second lower channel 221 and the second upper channel 231 into two sub-fire holes, so that the sub-fire holes located on the upper and lower sides of the second partition plate 24 are independent of each other.

[0132] That is, the cross-sectional area of ​​the sub-fire hole is relatively reduced and the depth of the sub-fire hole is relatively deepened relative to the second fire hole 21. At the moment when the gas valve is closed, the path of the flame return gas passage becomes relatively longer. When the flame reaches the gas passage, the flame is not enough to reach the limit condition of deflagration, so the problem of flameout noise of the second burner 20 can be effectively solved.

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

[0134] In one embodiment, the second partition plate 24 may be made of a stainless steel partition plate. In other embodiments, the second partition plate 24 may be made of an aluminum alloy partition plate, a copper alloy partition plate, or a partition plate made of other materials, which is not specifically limited here.

[0135] In certain embodiments, the angle θ2 is in the range of (0°, 60°).

[0136] In this way, the flame focusing capability of the second burner 20 is ensured, thereby improving the heating efficiency.

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

[0138] It can be understood that when the angle formed by the depth direction of the second fire hole 21 and the plane where the second upper plate 23 is located exceeds the range of (0°, 60°), the inclination angle of the flame of the second burner 20 increases, so that the focusing effect of the flame is weakened, thereby reducing the heating rate of the second burner 20.

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

[0140] In certain embodiments, the angle θ2 is 40°.

[0141] In this way, it is ensured that the flame intensity formed by the second burner 20 is greater, so that the heating effect of the bottom of the cooking utensil is better.

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

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

[0144] See also 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 (15 mm, 40 mm).

[0145] In this way, the ignition efficiency and heat dissipation efficiency of the burner assembly 100 are improved. When the first height difference H1 is greater than 40 mm, the first height difference H1 is too large, so that the distance between the first burner 10 and the second burner 20 is too far, and it is difficult to assist the ignition of the second burner 20 by the flame of the first burner 10. When the first height difference H1 is less than 15 mm, the first height difference H1 is too small, so that the distance between the first burner 10 and the second burner 20 is too close, and the heat dissipation effect is poor, so that the internal heat of the burner assembly 100 is too high, which is easy to cause safety hazards.

[0146] Specifically, in one embodiment, the first height difference H1 should be selected to have a suitable 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 may be in the range of (15 mm, 40 mm) to ensure the heat dissipation efficiency and flame transfer efficiency of the burner assembly 100 , thereby improving the safety of the burner assembly 100 .

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

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

[0150] When the first height difference H1 is less than 15 mm, the first height difference H1 is too small, so that the distance between the first burner 10 and the second burner 20 is too close, the heat dissipation effect is poor, and the internal heat of the burner assembly 100 is too high, which is prone to 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 first height difference H1 is in the range of (20 mm, 30 mm).

[0152] In this way, the ignition efficiency and heat dissipation efficiency of the burner assembly 100 are further improved. When the first height difference H1 is greater than 30 mm, the first height difference H1 is large, so that the distance between the first burner 10 and the second burner 20 is relatively far, and the ignition efficiency of the second burner 20 assisted by the flame of the first burner 10 is relatively low. When the first height difference H1 is less than 20 mm, the first height difference H1 is small, so that the distance between the first burner 10 and the second burner 20 is relatively close, and the heat dissipation effect is poor, so that the internal heat of the burner assembly 100 is relatively high, which is prone to safety hazards.

[0153] Specifically, in one embodiment, the first height difference H1 should be selected to have a suitable 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 first height difference H1 may be in the range of (20 mm, 30 mm) to further improve the heat dissipation efficiency and flame transfer efficiency of the burner assembly 100 .

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

[0156] When the first height difference H1 is greater than 30 mm, the first height difference H1 is relatively large, so that the distance between the first burner 10 and the second burner 20 is relatively far, and the ignition efficiency of the second burner 20 assisted by the flame of the first burner 10 is relatively low.

[0157] When the first height difference H1 is less than 20 mm, the first height difference H1 is small, so that the distance between the first burner 10 and the second burner 20 is close, the heat dissipation effect is poor, and the internal heat of the burner assembly 100 is high, which is prone to safety hazards.

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

[0159] In this way, the ignition efficiency and heat dissipation efficiency of the burner assembly 100 are high, 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 fire hole 11 and the second fire hole 21 is 23.65 mm. Under the condition of ensuring that there is a suitable heat dissipation space between the first burner 10 and the second burner 20, the first fire hole 11 can quickly assist the ignition of the second fire hole 21 by drawing the flame upward, thereby improving the ignition efficiency and heat dissipation efficiency of the burner assembly 100.

[0161] It can be understood that when the first height difference H1 is 23.65 mm, 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), and the gas at the second fire hole 21 can be better ignited from the inner periphery of the second burner 20 to form a double-ring flame to cover the bottom of the pot, thereby improving the ignition efficiency.

[0162] In addition, when the first height difference H1 is 23.65 mm, the heat dissipation space between the first burner 10 and the second burner 20 is appropriate, which can ensure that the air can flow smoothly in the burner assembly 100, that is, the internal heat of 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] See also Figure 3 In some embodiments, the depth direction of the first fire hole 11 is inclined relative to the radial direction of the first burner 10 to form a first deflection angle E, and the range of the first deflection angle E is (0, 45°).

[0164] In this way, the flame of the first fire hole 11 is gathered in a spiral shape to increase the flame intensity and ensure 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 fire 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 part of the pot bottom.

[0166] It can be understood that the first deflection angle E should be selected at a suitable angle so that the first fire hole 11 forms a ring flame of suitable diameter, thereby improving the combustion efficiency of the gas and increasing the flame intensity, thereby ensuring the heating amount of the middle part of the pot bottom.

[0167] In one embodiment, the first deflection angle E may be in the range of (0, 45°), that is, 0<E<45°. In some examples, E may 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, so that the diameter of the annular flame formed by the first fire hole 11 is too large, causing the flame to be relatively close to the edge of the bottom of the pot, thereby reducing the amount of heat in the middle of the bottom of the pot. Relatively speaking, the amount of heat at the edge of the bottom of the pot is increased, resulting 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 fire hole 11 is inclined relative to the radial direction of the first burner 10 to form a first deflection angle E, and the range of the first deflection angle E is (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 first deflection angle E is, the more the first deflection angle E tends to overlap with the radial direction of the first burner 10, so that the heating area of ​​the flame formed by the first fire hole 11 is smaller and tends to gather in the middle of the bottom of the pot.

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

[0173] In one embodiment, preferably, the first deflection angle E may be in the range of (0, 30°), that is, 0<E<30°. In some examples, E may 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 larger, so that the diameter of the annular flame formed by the first fire hole 11 is larger, causing the flame to be relatively close to the edge of the bottom of the pot, thereby reducing the amount of heating in the middle of the bottom of the pot. Relatively speaking, the amount of heating at the edge of the bottom of the pot is increased, resulting 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 fire hole 11 is inclined relative to the radial direction of the first burner 10 to form a first deflection angle E, and the first deflection angle E is 30°.

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

[0177] Specifically, in one embodiment, preferably, the first deflection angle E can be 30°, that is, the radial inclination angle of the first fire hole 11 in the depth direction relative to the first burner 10 is 30°. Under the condition of ensuring that the flame generated by the first burner 10 is spirally gathered, the heating area of ​​the flame formed by the first fire hole 11 is more appropriate, thereby making the flame intensity and heating effect of the first burner 10 higher.

[0178] It can be understood 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 pot bottom (target heating area), so that the heating efficiency is higher.

[0179] In addition, when the first deflection angle E is 30°, the depth direction of the first fire hole 11 is tilted relative to the radial direction of the first burner 10, which can ensure that the flame formed by the first fire hole 11 is at an appropriate distance from the middle of the pot bottom, 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, so that the flames overlap and gather in the middle of the pot bottom, ensuring a greater flame intensity.

[0181] See also Figure 4 In some embodiments, the depth direction of the second fire hole 21 is inclined relative to the radial direction of the second burner 20 to form a second deflection angle F, and the range of the second deflection angle F is (0, 45°).

[0182] In this way, the flame of the second fire hole 21 is gathered in a spiral shape to increase the flame intensity and ensure 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 fire 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 can be understood that the second deflection angle F should be selected at a suitable angle so that the second fire hole 21 forms an outer ring flame of suitable diameter, thereby improving the combustion efficiency of the gas and increasing the flame intensity, thereby ensuring the heating amount at the edge of the pot bottom.

[0185] In one embodiment, the second deflection angle F may be in the range of (0, 45°), that is, 0<F<45°. In some examples, F may 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, causing 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, resulting 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 fire hole 21 is inclined relative to the radial direction of the second burner 20 to form a second deflection angle F, and the range of the second deflection angle F is (0, 30°).

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

[0189] Specifically, it can be understood that the smaller the second deflection angle F is, the more the second deflection angle F tends to overlap with the radial direction of the second burner 20, so that the heating area of ​​the flame formed by the second fire hole 21 is smaller and tends to gather at the edge and inside of the bottom of the pot.

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

[0191] In one embodiment, preferably, the second deflection angle F may be in the range of (0, 30°), that is, 0<F<30°. In some examples, F may 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 larger, so that the diameter of the outer ring flame formed by the second fire hole 21 is larger, causing 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, resulting 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 fire hole 21 is inclined relative to the radial direction of the second burner 20 to form a second deflection angle F, and the second deflection angle F is 30°.

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

[0195] Specifically, in one embodiment, preferably, the second deflection angle F can be 30°, that is, the radial inclination angle of the second fire hole 21 in the depth direction relative to the second burner 20 is 30°. Under the condition of ensuring that the flame generated by the second burner 20 is spirally gathered, the heating area of ​​the flame formed by the second fire hole 21 is more appropriate, thereby making the flame intensity and heating effect of the second burner 20 higher.

[0196] It can be understood 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 position of the pot bottom (target heating area), so that the heating efficiency is higher.

[0197] In addition, when the second deflection angle F is 30°, the depth direction of the second fire hole 21 is tilted relative to the radial direction of the first burner 10, which can ensure that the flame formed by the second fire hole 21 is at an appropriate distance from the edge of the pot bottom, 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, so that the flames overlap and gather at the edge of the pot bottom, ensuring a greater flame intensity.

[0199] See also Figure 5 In some embodiments, the burner assembly 100 includes a guide plate 30, which is disposed between the first burner 10 and the second burner 20. There is a second height difference H2 between the guide plate 30 and the top of the first fire hole 11, and there is a third height difference H3 between the guide plate 30 and the bottom of the second fire hole 21, and the third height difference H3 is greater than the second height difference H2.

[0200] In this way, the first burner 10 and the second burner 20 are respectively kept at a suitable distance from the guide plate 30 to improve the air flow inside the burner assembly 100, thereby improving the combustion efficiency of the burner assembly 100.

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

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

[0203] In one embodiment, the third height difference H3 may be the distance between the guide plate 30 and the bottom of the second fire hole 21 to ensure that the secondary air quickly passes into the burner assembly 100 , thereby improving the combustion efficiency of the burner assembly 100 .

[0204] It can be understood that the third height difference H3 is greater than the second height difference H2, ensuring that the distance between the guide plate 30 and the bottom of the second fire hole 21 is large, so that the secondary air can pass into the burner assembly 100 faster and provide sufficient secondary air for the burner assembly 100.

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

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

[0207] In some embodiments, the second height difference H2 is in the range of (0, 8 mm).

[0208] In this way, the top of the first burner 10 is kept at a suitable distance from the guide plate 30 to improve the supply of secondary air, thereby improving the combustion efficiency of the first burner 10 .

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

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

[0211] That is, the second height difference H2 may be in the range of (0, 8 mm), that is, 0<H2<8 mm. In some examples, H2 may 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 8 mm, the second height difference H2 is too large, so that the time for the secondary air to reach the first fire hole 11 is too long, thereby reducing the combustion efficiency of the first burner 10 and the flame uniformity is low.

[0213] In certain embodiments, the second height difference H2 is 5 mm.

[0214] In this way, under the condition of ensuring that there is an appropriate distance between the top of the first burner 10 and the guide plate 30, the supply of secondary air is sufficient, so that the combustion efficiency of the first burner 10 is higher.

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

[0216] It can be understood that when the second height difference H2 is 5 mm, the gas at the first fire hole 11 can be fully burned by the secondary air, so that the combustion efficiency of the first burner 10 is higher, thereby improving the flame intensity.

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

[0218] In certain embodiments, the third height difference H3 is in the range of (0, 15 mm).

[0219] In this way, the bottom of the second burner 20 is kept at a suitable distance from the guide plate 30 to improve the supply of secondary air, thereby improving the 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 to have a suitable distance so that sufficient secondary air can be introduced into the burner assembly 100 while ensuring full combustion of the gas in the second fire hole 21 , thereby ensuring flame uniformity of the burner assembly 100 .

[0221] In one embodiment, the third height difference H3 may be in the range of (0, 15 mm), that is, 0<H3<15 mm. In some examples, H3 may 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 15 mm, the third height difference H3 is too large, so that the distance between the guide plate 30 and the second fire hole 21 is too large, the stability is reduced, and it is difficult to fix.

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

[0224] In certain embodiments, the third height difference H3 is 9 mm.

[0225] In this way, while ensuring that there is an appropriate distance between the bottom of the second burner 20 and the guide plate 30, the supply of secondary air is sufficient, so that the combustion efficiency of the burner assembly 100 is higher and the flame uniformity is better.

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

[0227] It can be understood that when the third height difference H3 is 9 mm, the gas at the second fire hole 21 can be fully burned by the secondary air, so that the combustion efficiency of the second burner 20 is higher, thereby improving the flame intensity.

[0228] In addition, when the third height difference H3 is 9 mm, sufficient secondary air can quickly enter the burner assembly 100 through the third height difference H3 to accelerate air flow and heat dissipation rate. At the same time, sufficient secondary air can also reach the first fire hole 11 along the side wall of the guide plate 30 to fully burn the gas in the first fire hole 11, thereby ensuring that the burner assembly 100 has high combustion efficiency and good flame uniformity.

[0229] See also Figure 1 and Figure 2 In some embodiments, the first lower plate 12 is concave 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 opposite to form the first fire hole 11 of the first burner 10.

[0230] In this way, 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 to each other, so that the first fire hole 11 of the first burner 10 is formed opposite to each other, thereby increasing the total area of ​​the fire hole of the first burner 10, and further increasing the flame intensity and load upper 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 resistant and corrosion resistant material.

[0232] In one embodiment, the first lower plate 12 may be made of aluminum alloy to ensure the bending performance of the first lower plate 12, thereby ensuring the forming of the first lower channel 121. In other embodiments, the first lower plate 12 may also be made of other materials, which are not specifically limited 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 a high temperature resistant and corrosion resistant material.

[0234] In one embodiment, the first upper plate 13 can 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 forming of the first upper channel 131. In other embodiments, the first upper plate 13 can also be made of other materials, which is not specifically limited here.

[0235] It can be understood that the first lower channel 121 and the first upper channel 131 are formed opposite to each other to form a first fire hole 11 similar to a circular ring. Compared with a single first lower channel 121 or a single first upper channel 131 arranged in a staggered manner, the total area of ​​the first fire hole 11 is increased, so that the combustion amount of the gas is increased, thereby improving 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 fire hole 11 of the present application does not change, which can ensure that the first burner 10 has a larger flame and excellent fire transfer and flame stabilization effects.

[0237] In some embodiments, the second lower plate 22 is concave 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 face each other to form the second fire hole 21 of the second burner 20 .

[0238] In this way, 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 to each other, so that the second fire holes 21 of the second burner 20 are formed opposite to each other, thereby increasing the total area of ​​the fire holes of the second burner 20, and further increasing the flame intensity and load upper 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 resistant and corrosion resistant material.

[0240] In one embodiment, the second lower plate 22 may be made of aluminum alloy to ensure the bending performance of the second lower plate 22, thereby ensuring the forming of the second lower channel 221. In other embodiments, the second lower plate 22 may also be made of other materials, which are not specifically limited 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 a high temperature resistant and corrosion resistant material.

[0242] In one embodiment, the second upper plate 23 can 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 forming of the second upper channel 231. In other embodiments, the second upper plate 23 can also be made of other materials, which are not specifically limited here.

[0243] It can be understood that the second lower channel 221 and the second upper channel 231 are formed opposite to each other to form a second fire hole 21 similar to a circular ring. Compared with a single second lower channel 221 or a single second upper channel 231 arranged in a staggered manner, the total area of ​​the second fire hole 21 is increased, so that the combustion amount of the gas is increased, 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 fire hole 21 of the present application does not change, which can ensure that the second burner 20 has a larger flame and excellent flame transfer and flame stabilization effects.

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

[0246] In this way, two adjacent independent first flame holes 11 are connected together, thereby ensuring the formation of an integral flame, thereby improving the flame transfer capability and anti-fire-out capability of the first burner 10 .

[0247] Specifically, in one embodiment, the 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 to play a role in transferring and stabilizing the flame.

[0248] It can be understood 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 an ignition needle (not shown), and transfer the flame to two adjacent first upper channels 131 through the first flame transfer gap 15, thereby forming a continuous flame, thereby ensuring the flame transfer efficiency and ignition success rate.

[0249] During the continuous operation of the first burner 10, the first fire transfer gap 15 connects the 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 burned, so that the first burner 10 forms an overall continuous flame, thereby ensuring high flame intensity and good stability, thereby improving the anti-fire capability of the first burner 10 and achieving the purpose of flame stabilization.

[0250] In one embodiment, the range of the first flame transfer gap 15 can be [0.50 mm, 0.80 mm], so that two adjacent independent first upper channels 131 are connected together to ensure the flame transfer capability and flame stabilization capability 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, the flame transfer efficiency and the secondary air supplement efficiency are low, so that the flame transfer ability of the first burner 10 is poor.

[0253] When the first flame transfer gap 15 is larger than 0.80 mm, the first flame transfer gap 15 is too large, the flame stability is low, and the flameout resistance of the first burner 10 is poor, and flameout and extinguishing phenomenon is easy to occur.

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

[0255] In this way, two adjacent independent second flame holes 21 are connected together, thereby ensuring the formation of an integral flame, thereby improving the flame transfer capability and anti-fire-out capability of the second burner 20 .

[0256] Specifically, in one embodiment, the 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 to play a role in transferring and stabilizing the flame.

[0257] It can be 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 transfer the flame to the two adjacent second upper channels 231 through the second fire transfer gap 25, thereby forming a continuous flame, thereby ensuring the fire transfer efficiency and ignition success rate.

[0258] During the continuous operation of the second burner 20, the second fire transfer gap 25 connects the 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 burned, so that the second burner 20 forms an overall continuous flame, thereby ensuring high flame intensity and good stability, thereby improving the second burner 20's anti-fire ability and achieving the purpose of flame stabilization.

[0259] In one embodiment, the second flame transfer gap 25 may be in the range of [0.50 mm, 0.80 mm], so that two adjacent independent second upper channels 231 are connected together to ensure the flame transfer capability and flame stabilization capability 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, the flame transfer efficiency and the secondary air supplement efficiency are low, so that the flame transfer ability of the second burner 20 is poor.

[0262] When the second flame transfer gap 25 is larger than 0.80 mm, the second flame transfer gap 25 is too large, the flame stability is low, and the flameout resistance of the second burner 20 is poor, which easily causes flameout and extinguishing.

[0263] See also Figure 6 An embodiment of the present invention provides a stove 1000, and the stove 1000 includes the burner assembly 100 of any one of the above embodiments.

[0264] In this way, the stove 1000 sets the second burner 20 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. When the first burner 10 is ignited successfully, the second burner 20 can be ignited from the inner periphery by drawing the flame upward, thereby ensuring the uniformity of the flame at the bottom of the pot. The structure is simple and convenient.

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

[0266] It can be understood that the cooker 1000 includes a burner assembly 100, and the burner assembly 100 includes at least one burner, such as a single inner ring burner, a single outer ring burner, a double-ring inner flame burner, or a multi-ring inner flame burner.

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

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

[0269] like Figure 6 As shown, Figure 6 2 is a schematic diagram of the structure of a double burner stove, that is, the burner 200 includes a burner assembly 100. The burner assembly 100 can be an outer ring burner, an inner ring burner, or a double ring burner formed by combining an outer ring burner and an inner ring burner, which is not specifically limited here.

[0270] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. A burner assembly, characterized in that: include: A first burner, the first burner is annular and has a first fire hole formed on the inner periphery; The second burner is annular and has a second fire hole formed on the inner periphery. The second burner is arranged above the first burner, and the inner diameter of the second burner is larger than that of the first burner.

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 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 first burner includes a first lower plate, a first upper plate arranged on the first lower plate, and a first partition plate, the first lower plate is formed with a first lower hole, the first upper plate is formed with a first upper hole corresponding to the first lower hole, the first lower hole and the first upper hole form the first fire hole, the first partition plate is arranged between the first lower plate and the first upper plate, and separates the first lower hole from the first upper hole; 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°).

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

6. The burner assembly according to claim 4, characterized in that The angle θ1 is 40°.

7. The burner assembly according to claim 1, characterized in that The second burner comprises a second lower plate, a second upper plate and a second partition plate arranged on the second lower plate, the second lower plate is formed with a second lower hole, the second upper plate is formed with a second upper hole corresponding to the second lower hole, the second lower hole and the second upper hole form the second fire hole, and the second partition plate is arranged between the second lower plate and the second upper plate and separates the second lower hole from the second upper hole; 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°).

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

9. The burner assembly according to claim 7, characterized in that The angle θ2 is 40°.

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 (15mm, 40mm).

11. 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 (20 mm, 30 mm).

12. 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 first height difference is 23.65 mm.

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

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

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

16. The burner assembly of claim 1, wherein: The depth direction of the second fire hole is inclined relative to the radial direction of the second burner to form a second deflection angle, and the range of the second deflection angle is (0, 45°).

17. The burner assembly of claim 1, wherein: The depth direction of the second fire hole is inclined relative to the radial direction of the second burner to form a second deflection angle, and the range of the second deflection angle is (0, 30°).

18. The burner assembly of claim 1, wherein: The depth direction of the second fire hole is inclined relative to the radial direction of the second burner to form a second deflection angle, and the second deflection angle is 30°.

19. The burner assembly of claim 1, wherein: The burner assembly includes a guide plate, which is arranged between the first burner and the second burner. There is a second height difference between the guide plate and the top of the first fire hole, and there is a third height difference between the guide plate and the bottom of the second fire hole. The third height difference is greater than the second height difference.

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

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

22. The burner assembly of claim 19, wherein: The range of the third height difference is (0, 15 mm).

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

24. The burner assembly of claim 4, wherein: The first lower plate is concave to form a first lower channel, and the first upper plate is convex to form a first upper channel; and The first lower hole and the first upper hole are opposite to each other to form a first fire hole of the first burner.

25. The burner assembly of claim 7, wherein: The second lower plate is concave to form a second lower channel, and the second upper plate is convex to form a second upper channel; and The second lower hole channel and the second upper hole channel are opposite to each other to form a second fire hole of the second burner.

26. The burner assembly of claim 24, wherein: A first fire transfer gap is formed between the first upper plate and the first partition plate, and the first fire transfer gap communicates with two adjacent first fire holes.

27. The burner assembly of claim 25, wherein: A second fire transfer gap is formed between the second upper plate and the second partition plate, and the second fire transfer gap communicates with two adjacent second fire holes.

28. A cooking appliance, characterized in that: The cooker comprises the burner assembly according to any one of claims 1-27.

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