Burner and gas oven

Abstract

The utility model discloses a burner and a gas oven with the burner, and relates to the technical field of electrical equipment, the burner comprises a plurality of fire holes, an ejection flow channel and a distribution flow channel, the plurality of fire holes are arranged along a first direction, the distribution flow channel and the plurality of fire holes are distributed along a second direction, the distribution flow channel is provided with a first side surface opposite to the plurality of fire holes, and the ejection flow channel is provided with a second side surface opposite to the plurality of fire holes. The first direction is perpendicular to the second direction, the distribution flow channel comprises a first part and a second part, the ejection flow channel, the first part and the second part are distributed in the first direction and are sequentially communicated, a boss is arranged on the side, close to the fire holes, of the first part and comprises a second side face opposite to the first side face, and the second side face comprises a first guide face; the end of the first guide face extends to the edge, close to the second part, of the first part, and the distance between the first guide face and the first side face is gradually reduced in the direction away from the injection flow channel. According to the combustor, the air flow circulation path can be optimized, and the combustion effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric appliance technical field, especially a kind of combustor and the gas oven with the combustor of the combustor. BACKGROUND

[0002] Gas oven is a kind of equipment using high temperature to food roasting cooking, it is usually divided into electric oven and gas oven according to the type of heat source, wherein electric oven uses the heat generated by electric heating tube to heat food, and gas oven heats food by the heat generated by burning.

[0003] In related art, combustor is provided in gas oven, and the combustor is generally composed of an air inlet, a draft tube, a distribution section and a fire hole. Among them, the main mixed gas flow will flow along the bottom of the distribution section to the fire hole direction, causing the branch flow sprayed from the fire hole to be inclined to the end of the distribution section due to the influence of the main mixed gas flow, and the branch flow gas cannot fully react at the fire hole, resulting in poor combustion effect. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art to some extent. To this end, one purpose of the utility model is to provide a combustor, which can improve the compactness of the combustor structure and the combustion effect.

[0005] Another purpose of the utility model is to provide a gas oven comprising the aforementioned combustor.

[0006] According to the combustor of the utility model embodiment, the plurality of fire holes, the draft flow channel and the distribution flow channel are arranged along the first direction, the distribution flow channel and the plurality of fire holes are distributed along the second direction, and the distribution flow channel has a first side surface opposite to the plurality of fire holes, the first direction and the second direction are perpendicular, the distribution flow channel comprises a first part and a second part, the draft flow channel, the first part and the second part are distributed along the first direction and sequentially communicated, the first part is provided with a boss near the side of the plurality of fire holes, the boss comprises a second side surface opposite to the first side surface, the second side surface comprises a first guide surface, and the end of the first guide surface extends to the edge of the first part close to the second part.

[0007] According to the combustor of the utility model embodiment, the draft flow channel, the first part and the second part are distributed along the first direction, which can improve the compactness of the combustor structure, and the airflow can enter the combustor along the first direction and be distributed along the first direction, and in the direction away from the draft flow channel, the distribution flow channel gradually narrows, which can optimize the airflow circulation path and further improve the combustion effect of the combustor.

[0008] In addition, the combustor according to the above-mentioned embodiments of the present application can further have the following additional technical features.

[0009] In some examples of the present application, the first guide surface forms an angle with the first direction that is greater than or equal to 0 and less than or equal to 10°.

[0010] In some examples of the present application, the first guide surface is parallel to the first direction.

[0011] In some examples of the present application, the first side surface extends along the first direction and is inclined towards the plurality of fire holes in a direction away from the ejector flow passage.

[0012] In some examples of the present application, the second side surface further comprises a second guide surface, the second guide surface is closer to the ejector flow passage than the first guide surface, and the distance between the first side surface and the second guide surface gradually decreases in a direction away from the ejector flow passage.

[0013] In some examples of the present application, the second guide surface forms an angle with the first direction that is greater than or equal to 0 and less than or equal to 10°.

[0014] In some examples of the present application, the first guide surface and the second guide surface are parallel.

[0015] In some examples of the present application, the second guide surface is parallel to the first direction.

[0016] In some examples of the present application, the distance between the second guide surface and the plurality of fire holes is greater than the distance between the first guide surface and the plurality of fire holes, and the second side surface further comprises a third guide surface connected between the first guide surface and the second guide surface.

[0017] In some examples of the present application, the third guide surface is provided as an inclined plane gradually away from the second side surface in a direction away from the ejector flow passage.

[0018] In some examples of the present application, the third guide surface is provided as an arc surface gradually away from the second side surface in a direction away from the ejector flow passage.

[0019] In some examples of the present application, the third guide surface forms an angle with the first direction that is greater than or equal to 30° and less than or equal to 60°.

[0020] In some examples of the present application, the first side surface forms an angle with the first direction that is greater than or equal to 5° and less than or equal to 15°.

[0021] In some examples of the present utility model, the injection flow channel extends along the first direction.

[0022] In some examples of the present utility model, one end of the injection flow channel extends beyond the end of the plurality of fire holes along the first direction, and the other end is distributed with the plurality of fire holes along the second direction.

[0023] In some examples of the present utility model, the distribution flow channel is configured with the boss by protruding inwardly along at least one side wall of the distribution flow channel along the third direction.

[0024] In some examples of the present utility model, the burner further comprises a communication groove extending along the first direction and communicating the plurality of fire holes.

[0025] In some examples of the present utility model, the distribution flow channel comprises a first flow channel, a second flow channel and a third flow channel communicating with each other, the first flow channel is opposite to the boss along the third direction, the first flow channel is arranged between the second flow channel and the communication groove, the third flow channel is arranged on the side of the second flow channel away from the injection flow channel, and the third flow channel is distributed with the communication groove along the second direction.

[0026] In some examples of the present utility model, the size value of the first flow channel along the third direction is L31, the size value of the second flow channel along the third direction is L32, the size value of the third flow channel along the third direction is L33, and the size value of the communication groove along the third direction is L34, wherein L31 < L32; and / or, L31 < L33; and / or, L31 < L34; and / or, L34 < L32; and / or, L34 < L33.

[0027] In some examples of the present utility model, the burner further comprises a gas collecting cavity arranged between the injection flow channel and the distribution flow channel, and communicating the injection flow channel, the first flow channel, the second flow channel and the communication groove.

[0028] In some examples of the present utility model, the size value of the first flow channel along the third direction is L31, the size value of the second flow channel along the third direction is L32, the size value of the third flow channel along the third direction is L33, and the size value of the communication groove along the third direction is L34, wherein L31 < L35; and / or, L32 < L35; and / or, L34 < L35; and / or, L34 < L33; and / or, L34 < L32.

[0029] The gas oven according to the present utility model embodiment comprises the aforementioned burner.

[0030] According to the gas oven, the compact structure and the combustion effect of the burner can be improved by applying the aforementioned burner on the cooking utensil. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of the burner in some embodiments of the utility model;

[0032] Figure 2 is a sectional view of the burner (showing the first guide surface, the second guide surface, the third guide surface and the gas flow direction) in some embodiments of the utility model;

[0033] Figure 3 is a sectional view of the burner (showing the first flow channel, the second flow channel, the communication groove and the gas collecting cavity) in some embodiments of the utility model;

[0034] Figure 4 is a sectional view of the burner (showing the third flow channel and the gas collecting cavity) in some embodiments of the utility model;

[0035] Figure 5 is a partial structural schematic view of the cooking utensil in some embodiments of the utility model.

[0036] LIST OF REFERENCE NUMERALS

[0037] 100, burner; 10, main body; 101, fire hole; 20, distribution flow channel; 20a, first part; 20b, second part; 21, first side; 22, second side; 221, first guide surface; 222, second guide surface; 223, third guide surface; 23, boss; 30, injection pipe; 301, injection flow channel; 302, inlet end; 303, outlet end; 40, gas collecting cavity; 50, communication groove; 201, first flow channel; 202, second flow channel; 203, third flow channel; 200, gas supply assembly; 300, support frame. DETAILED DESCRIPTION

[0038] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0039] In combination Figure 1 And Figure 2According to the burner 100, the plurality of fire holes 101 are arranged along a first direction, the fire holes 101 are used for spraying mixed gas and igniting to form a flame, and the plurality of fire holes 101 can realize heating in the first direction. The distribution flow channel 20 and the plurality of fire holes 101 are distributed along a second direction, and the distribution flow channel 20 has a first side 21 opposite to the plurality of fire holes 101, and the distribution flow channel 20 can send gas to the plurality of fire holes 101. Wherein, the first direction and the second direction are perpendicular.

[0040] The distribution flow channel 20 includes a first part 20a and a second part 20b, and the injection flow channel 301, the first part 20a and the second part 20b are distributed along the first direction and are sequentially communicated, so that air and gas can enter the injection flow channel 301, mix in the injection flow channel 301, and enter the distribution flow channel 20 from the injection flow channel 301. In this way, the distribution flow channel 20 distributes the mixed gas of the injection flow channel 301 and sends it to the plurality of fire holes 101. When ignition, the mixed gas reacts in the fire hole 101 to form a flame extending along the first direction.

[0041] Further, the first part 20a is provided with a boss 23 near the side of the plurality of fire holes 101, and the boss 23 can limit and guide the flow of gas in the distribution flow channel 20. The boss 23 is close to the injection flow channel 301 and the plurality of fire holes 101. After the gas in the injection flow channel 301 enters the distribution flow channel 20, the amount of mixed gas at the outlet of the injection flow channel 301 is large, so the gas flow at the fire hole 101 near the outlet of the injection flow channel 301 is large. By setting the boss 23, the amount of gas flow directly flowing to the fire hole 101 at the above position can be limited, so that the gas flow can continue to flow to the second part 20b, thereby achieving the effect of flow limiting and gas flow distribution. The boss 23 includes a second side 22 opposite to the first side 21, and the gas flow can flow between the first side 21 and the second side 22 when flowing through the boss 23. The second side 22 includes a first guide surface 221, and the end of the first guide surface 221 extends to the edge of the first part 20a close to the second part 20b. Wherein, the distance between the first guide surface 221 and the first side 21 gradually decreases in the direction away from the injection flow channel 301. Specifically, when the gas flow flows in the direction away from the injection flow channel 301, the gas flow channel gradually decreases, so that the gas flow velocity can be increased. When the gas flow reaches the end of the first guide surface 221, the gas flow channel will suddenly increase. At the edge of the first guide surface 221 close to the second part 20b, the gas flow can expand rapidly, and a vortex is formed at the end of the first guide surface 221, and then moves upward into the fire hole 101. The gas flow can enter the fire hole 101 along the second direction, the gas flow can be vertically sprayed from the fire hole 101, which is beneficial to realize the full reaction of the gas flow in the fire hole, thereby improving the combustion effect of the burner 100.

[0042] According to the burner 100 in the embodiment of the present application, the injection flow channel 301, the first part 20a and the second part 20b are distributed along the first direction, which can improve the compactness of the structure of the burner 100, and the airflow can enter the burner 100 along the first direction and be distributed along the first direction, and in the direction away from the injection flow channel 301, the distribution flow channel 20 gradually narrows, which can improve the distribution effect.

[0043] In some embodiments of the present application, the first guide surface 221 is parallel to the first direction, which can improve the guiding effect of the airflow and improve the effect when the airflow enters the fire hole. Specifically, in combination with Figure 2 When the airflow flows from the end of the first guide surface 221 to the fire hole 101, the airflow expands rapidly, forms a vortex at the end of the first guide surface 221, and bends the flow direction of the airflow towards the direction of the fire hole 101, and then can be sprayed from the fire hole 101 along the second direction perpendicular to the first direction, which can improve the consistency and stability of the multiple fire holes 101 when the burner 100 is burning.

[0044] Specifically, in the related art, the gas mixture or mixed gas inside the burner may flow obliquely upward to the top end of the burner when passing through the distribution section, which affects the shape of the flame after ignition. Therefore, in the present application, the first guide surface 221 extending horizontally or along the first direction is arranged on the boss 23 of the distribution flow channel 20, the airflow is guided horizontally by the guide surface, the flow area inside the distribution flow channel 20 rapidly expands at the end of the first guide surface 221, a vortex is generated, and the airflow flows vertically when flowing upward, so that the airflow sprayed from the flame port can be vertical, which can improve the combustion effect of the burner 100.

[0045] Optionally, the included angle between the first guide surface 221 and the first direction is greater than or equal to 0 and less than or equal to 10°. For example, the included angle between the first guide surface 221 and the first direction is 3°, 5° or 8°, etc. That is, the first guide surface 221 allows to have a tilt angle tolerance along the first direction. The first guide surface 221 is substantially parallel to the first direction, which can achieve the effect of guiding the airflow, and therefore the manufacturing precision requirement of the first guide surface 221 is not high, which is beneficial to reduce the manufacturing cost. In actual application, the arrangement mode of the first guide surface 221 can be appropriately adjusted according to the actual situation, which can improve the application flexibility. More specifically, the first guide surface 221 can extend a certain distance along the first direction, which can improve the guiding effect of the airflow, and in actual application, the size of the burner 100 and the use requirement of the burner 100 can be reasonably arranged.

[0046] In some embodiments of the utility model, first side 21 extends along first direction, so that the airflow can flow to the fire hole 101 far from the ejector flow channel 301, and in the flow process, first side 21 is inclined to the plurality of fire holes 101 in the direction away from the ejector flow channel 301, on the one hand, it can gradually guide the gas to the position close to the fire hole 101, and also can reduce the resistance of gas flow, improve the flow rate, thereby improve the combustion effect of the fire hole 101 far from the ejector flow channel 301.

[0047] In some embodiments of the utility model, second side 22 further includes second guide surface 222, second guide surface 222 is close to the ejector flow channel 301 compared to first guide surface 221, whereby the gas of the outlet of the ejector flow channel 301 is guided to first guide surface 221 through second guide surface 222 first, and the spacing between first side 21 and second guide surface 222 gradually reduces in the direction away from the ejector flow channel 301, which is conducive to guiding the airflow to flow quickly and improving the airflow distribution effect.

[0048] In some embodiments of the utility model, first guide surface 221 and second guide surface 222 are parallel, when the airflow flows from second guide surface 222 to first guide surface 221, the airflow is guided along the first direction. Specifically, after the airflow enters the distribution flow channel from the ejector flow channel, it is guided by second guide surface 222, and the airflow can flow horizontally, which is conducive to guiding the airflow to extend along the first direction.

[0049] Optionally, the included angle between second guide surface 222 and the first direction is greater than or equal to 0 and less than or equal to 10°, which can reduce the precision requirement of the boss 23, and can optimize the airflow flow path.

[0050] In some embodiments of the utility model, second guide surface 222 is parallel to the first direction. Optionally, second guide surface 222 can also be provided in the form of gradually extending upwardly away from the ejector flow channel 301.

[0051] In some embodiments of the utility model, the distance between second guide surface 222 and the plurality of fire holes 101 is greater than the distance between first guide surface 221 and the plurality of fire holes 101. Specifically, since second guide surface 222 is closer to the ejector flow channel 301, the gas flow is greater in the area of second guide surface 222, and the distance between second guide surface 222 and the fire hole 101 is farther, which can reduce the amount of gas directly entering the fire hole 101, thereby avoiding local flame in the plurality of fire holes 101. Thus, the gas can continue to flow through second guide surface 222 to first guide surface 221, thereby distributing the airflow in the direction away from the ejector flow channel 301, and at the position away from the ejector flow channel 301, the distance between first guide surface 221 and the fire hole 101 is closer, which can facilitate the gas supply to the fire hole 101, thereby improving the uniformity of the airflow distribution along the first direction.

[0052] More specifically, in combination Figure 2 The second side surface 22 further comprises a third guide surface 223, which is connected between the first guide surface 221 and the second guide surface 222, and can better guide the airflow to pass from the second guide surface 222 to the first guide surface 221.

[0053] Specifically, the airflow first passes through the second guide surface 222, and slows down under the third guide surface 223 due to the expansion of the airflow passage, and slightly speeds up at the end of the first guide surface 221. In combination Figure 2 When the airflow passes from the second guide surface 222 to the third guide surface 223 and then to the first guide surface 221, the airflow passage is gradually expanded, forming a stepped guiding effect, which is beneficial to improve the distribution effect of the airflow along the first direction.

[0054] For example, in some embodiments of the utility model, the third guide surface 223 is provided as an inclined plane gradually away from the second side surface 22 in a direction away from the ejector flow passage 301, thereby realizing the transition from the second guide surface 222 to the first guide surface 221. Since there is a height difference between the second guide surface 222 and the first guide surface 221, the inclined third guide surface 223 can reduce the resistance of the airflow when passing, so that the airflow can easily flow from the second guide surface 222 to the first guide surface 221.

[0055] Alternatively, the third guide surface 223 is provided as an arc surface gradually away from the second side surface 22 in a direction away from the ejector flow passage 301, which can reduce the resistance of the airflow when passing, and facilitate smoother transition of the airflow.

[0056] In some embodiments of the utility model, in combination Figure 2 The angle between the third guide surface 223 and the first direction is greater than or equal to 30° and less than or equal to 60°, and the angle between the third guide surface 223 and the first direction is α, 30°≥α≥60°, which can improve the guiding effect of the airflow, reduce the airflow resistance while avoiding the airflow from changing dramatically, thereby reducing energy loss and improving the airflow passing rate. For example, α can be 35°, 45° or 50°, etc.

[0057] In some embodiments of the utility model, the angle between the first side surface 21 and the first direction is greater than or equal to 5° and less than or equal to 15°. In combination Figure 2 The angle between the first side surface 21 and the first direction is β, 5°≥β≥15°, and β is the angle required to extend to the end of the burner 100, which can improve the gas delivery effect of the distribution flow passage 20 on the end of the burner 100, and is beneficial to improve the combustion effect of the end of the burner 100. For example, β can be 8°, 10° or 12°, etc.

[0058] In some embodiments of the utility model, ejector runner 301 extends along the first direction, can shorten the size of combustor 100 along the second direction, and it is convenient for ejector runner 301 to be directly connected with distribution runner 20, and it is beneficial to improve the compactness of combustor 100.

[0059] In some embodiments of the utility model, one end of ejector runner 301 extends beyond the end of multiple fire holes 101 along the first direction, and the other end is distributed along the second direction with multiple fire holes 101.

[0060] In combination Figure 1 And Figure 2 In some embodiments of the utility model, the inlet end 302 of the ejector runner 301 extends beyond the end of the plurality of fire holes 101 along the first direction, which can extend the length of the ejector runner 301, improve the intake effect and gas mixing effect.

[0061] In combination Figure 2 In some embodiments of the utility model, the size of the ejector runner 301 extending beyond the end of the plurality of fire holes 101 is C, and the size of the plurality of fire holes 101 along the first direction is A, wherein C / A<0.4. Specifically, if the value of C / A is greater than 0.4, the size of combustor 100 along the first direction is too large, which is not convenient to arrange. Therefore, the maximum size of combustor 100 along the first direction can be reasonably controlled under the condition of ensuring the length of ejector runner 301, thereby facilitating space arrangement. For example, the ratio of the size of the ejector runner 301 extending beyond the end of the plurality of fire holes 101 to the size of the plurality of fire holes 101 along the first direction can be 0.3, 0.2, etc. Preferably, C / A is 0.25.

[0062] Referring to Figure 2 , the first direction can be the length direction of combustor 100, and the length direction can refer to the left-right direction in Figure 2 , and the second direction can be the height direction of combustor 100, and the height direction can refer to the up-down direction in Figure 2 .

[0063] In combination Figure 1 In some embodiments of the utility model, combustor 100 includes a main body 10 and an ejector pipe 30, a plurality of fire holes 101 and a distribution runner 20 are arranged in the main body 10, and an ejector runner 301 is arranged in the ejector pipe 30. At least a part of the ejector pipe 30 extends beyond the end of the main body 10 along the first direction, which can facilitate the cooperation of the inlet of the ejector pipe 30 with the gas supply assembly 200, and is beneficial to appropriately lengthen the length of the ejector pipe 30. The length of the ejector pipe 30 can be determined according to the gas consumption (or heat load), thereby improving the combustion effect of combustor 100.

[0064] In some embodiments of the utility model, the main body part 10 is A in the first direction, and the maximum dimension of the main body part 10 and the injection pipe 30 in the second direction is B, satisfying B / A < 0.4, so that the size of the burner 100 in the second direction can be reduced, and the compactness of the burner 100 can be improved. When the burner 100 is applied to the cooking utensil 1000, the size of the burner 100 in the second direction is small, the size of the heating space above the burner 100 can be increased, or the space occupied by the burner 100 can be reduced, so that the size of the cooking utensil 1000 can be reduced. For example, the ratio of the maximum dimension of the main body part 10 and the injection pipe 30 in the second direction to the size of the plurality of fire holes 101 in the first direction can be 0.3, 0.2, etc. Preferably, B / A is 0.25.

[0065] Specifically, the plurality of fire holes 101 extend along the length direction, the distribution flow channel 20 is arranged below the plurality of fire holes 101 along the height direction, the plurality of fire holes 101 and the distribution flow channel 20 are arranged on the main body part 10, the injection pipe 30 is connected to the main body part 10 along the length direction, and a part of the injection pipe 30 overlaps the main body part 10 along the first direction or the length direction. In other words, in the first direction, a part of the injection pipe 30 is arranged on the main body part 10, and the other part extends out of the main body part 10. Therefore, when arranging the injection pipe 30, the space in the second direction of the main body part 10 can be fully utilized, so that the pipe body part of the injection pipe 30 can be located on the main body part 10, so as to reduce the maximum dimension of the main body part 10 and the injection pipe 30 in the second direction after being connected. Therefore, the maximum height dimension of the burner 100 is the height dimension of the main body part 10 and the dimension of the injection pipe 30 exceeding the main body part 10 in the second direction. In the related art, the injection pipe 30 is directly connected below the main body of the burner 100, so the height dimension of the burner 100 in the related art is the sum of the height dimension of the main body of the burner 100 and the height dimension of the injection pipe 30 as a whole. Therefore, the overall height dimension of the burner 100 is large, and the compactness is poor.

[0066] In combination Figure 1 The inlet end 302 of the injection pipe 30 extends out of the main body part 10, and the outlet end 303 of the injection pipe 30 communicates with the distribution flow channel 20 in the main body part 10. The outlet end 303 of the injection pipe 30 can communicate with the fire hole 101 along the second direction to realize gas supply, and the injection pipe 30 communicates with the distribution flow channel 20 along the first direction, so that the mixed gas can continue to be transported away from the injection pipe 30. Therefore, the structure of the burner 100 can be optimized, and the combustion effect of the burner 100 can be improved.

[0067] In some embodiments of the utility model, the boss 23 is protruded towards the distribution flow channel 20, the flow channel of the distribution flow channel 20 can be narrowed at the boss 23, the flow effect is limited at the place, so that a part of gas can enter the fire hole 101 through the boss 23, another part or most of the gas flow can enter the second part 20b of the distribution flow channel 20, so that the mixed gas is distributed more evenly along the first direction, multiple fire holes 101 can react with the mixed gas when igniting, so that the distribution effect of the gas flow is realized, the burner 100 is avoided to be unevenly distributed, the uniformity of the burner 100 heating can be improved, the full combustion of the gas is facilitated, and the structure is simple and easy to construct.

[0068] In some embodiments of the utility model, in combination with Figure 1 and Figure 2 The burner 100 further includes a communication groove 50, and the communication groove 50 extends along the first direction and communicates with the multiple fire holes 101. That is, the communication groove 50 can connect the multiple fire holes 101 and the distribution flow channel 20 along the second direction, and the gas flow distributed through the distribution flow channel 20 enters the communication groove 50 and then enters the fire hole 101, which is beneficial to improve the stability of the gas flow near the fire hole 101. Specifically, the gas flow flows along the first direction and then enters the fire hole 101 along the second direction, so the gas flow may be inclined upward when changing the flow direction, which may affect the shape and stability of the flame during combustion, and the flame may be unstable. By arranging the communication groove 50 between the distribution flow channel 20 and the fire hole 101, the stability of the gas flow can be improved, and the flame is more stable. In combination with Figure 1 The distribution flow channel 20 needs to distribute the gas flow along the first direction, so the sizes of the flow channels in different regions of the distribution flow channel 20 may be different, and the size of the flow channel of the communication groove 50 can be a fixed size, that is, the size of the flow channel of the communication groove 50 is the same at each position in the first direction, which can improve the stability of the gas flow between the communication groove 50 and the fire hole 101, and the flame is more uniform when igniting.

[0069] In some embodiments of the utility model, in combination with Figure 3 and Figure 4The distribution flow channel 20 includes a first flow channel 201, a second flow channel 202 and a third flow channel 203 which are communicated with each other, the first flow channel 201 is opposite to the boss 23 along the third direction, the first flow channel 201 is arranged between the second flow channel 202 and the communication groove 50, the third flow channel 203 is arranged on the side of the second flow channel 202 away from the ejecting flow channel 301 and is distributed with the communication groove 50 along the second direction. Specifically, the first flow channel 201 and the second flow channel 202 can be arranged in the first part 20a of the distribution flow channel 20, and the third flow channel 203 can be arranged in the second part 20b of the distribution flow channel 20. The boss 23 can form the first flow channel 201 in the distribution flow channel 20, the flow passage area of the first flow channel 201 is small, after the gas flow enters the first part 20a, part of the gas flow passes through the boss 23, and part of the gas flow enters the second part 20b from the area where the boss 23 is not arranged, the second flow channel 202 is formed in the area, the flow passage area of the second flow channel 202 is larger than that of the first flow channel 201, so that more gas flow can enter the second part 20b from the second flow channel 202, and less gas flow enters the communication groove 50 and the second part 20b from the first flow channel 201. Therefore, the first flow channel 201 is between the second flow channel 202 and the communication groove 50, so that the first flow channel 201 can control the amount of gas flow entering the communication groove 50 from the outlet of the ejecting flow channel 301 and the second flow channel 202, thereby achieving the flow limiting effect.

[0070] More specifically, in some embodiments of the present application, Figure 3 The size value of the first flow channel 201 along the third direction is L31, the size value of the second flow channel 202 along the third direction is L32, the size value of the third flow channel 203 along the third direction is L33, and the size value of the communication groove 50 along the third direction is L34, wherein L31 < L32; and / or L31 < L33; and / or L31 < L34; and / or L34 < L32; and / or L34 < L33. Specifically, in the first part 20a of the distribution flow channel 20, L32 is greater than L31 and L34, that is, in the area away from the fire hole 101, the size of the flow channel is large, which can improve the gas distribution efficiency, and the size of the flow channel is small near the fire hole 101, which is convenient for controlling the amount of gas flow entering the fire hole 101, thereby ensuring the uniformity of distribution and the stability of the flame. Similarly, the size L33 of the third flow channel 203 is greater than the size L34 of the communication groove 50, which can control the gas flow in the third flow channel 203 to enter the fire hole 101 after being limited by the communication groove 50, thereby improving the stability of the gas flow entering the fire hole 101 and facilitating the control of the flow rate of the gas flow. For example, in one specific embodiment of the present application, L31 < L34 < L32, and L33 < L34 < L31.

[0071] The first direction can refer to the left-right direction in Figure 2 The second direction can refer to the up-down direction in Figure 2the third direction can refer to the front-rear direction in the burner 100. Figure 3 The first direction can be the length direction of the burner 100, the second direction can be the height direction of the burner 100, and the third direction can be the thickness direction of the burner 100.

[0072] In some embodiments of the present application, the burner 100 further comprises a gas collecting cavity 40, which is arranged between the injection flow channel 301 and the distribution flow channel 20, and communicates with the injection flow channel 301, the first flow channel 201, the second flow channel 202 and the communication groove 50. The gas at the outlet end 303 of the injection flow channel 301 can be collected in the gas collecting cavity 40, which can improve the mixing effect of air and gas and flow into the communication groove 50 and the distribution flow channel 20 respectively, so that the gas can flow in the first direction.

[0073] Specifically, in some embodiments of the present application, in combination with Figure 3 , the size value of the gas collecting cavity 40 along the third direction is L35, the size value of the first flow channel 201 along the third direction is L31, the size value of the second flow channel 202 along the third direction is L32, and the size value of the communication groove 50 along the third direction is L34, wherein L31 < L35; and / or, L32 < L35; and / or, L34 < L35; and / or, L34 < L33; and / or, L34 < L32. The gas collecting cavity 40 communicates with the outlet end 303 of the injection flow channel 301, and the first flow channel 201 and the second flow channel 202 of the distribution flow channel 20. That is, the gas collecting cavity 40 can be arranged between the injection flow channel 301 and the distribution flow channel 20, and the gas collecting cavity 40 is opposite to the first flow channel 201, so that the gas in the gas collecting cavity 40 can be distributed through the first flow channel 201 and then enter the second part 20b or the third flow channel 203, thereby realizing the distribution of the gas flow in the first direction. Therefore, the size of the inner flow channel of the gas collecting cavity 40 is the largest, and the flow area of the gas flow is larger. The part of the gas collecting cavity 40 close to the fire hole 101 is opposite to the first flow channel 201 along the first direction, so the size of the first flow channel 201 is smaller than the size of the gas collecting cavity 40 and the second flow channel 202, which can limit the amount of gas flow in the gas collecting cavity 40 directly entering the communication groove 50. The part of the gas collecting cavity 40 away from the fire hole 101 is opposite to the second flow channel 202, and the size of the second flow channel 202 is larger than that of the first flow channel 201, which can ensure that part or most of the gas can enter the second part 20b, thereby realizing the distribution effect. For example, in one specific embodiment of the present application, L35 < L32 < L31, L32 < L34 < L31.

[0074] In combination with Figure 3In some embodiments of the present application, the burner 100 comprises a first half 11 and a second half 12, the first half 11 and the second half 12 are connected to form the burner 100, and the first half 11 and / or the second half 12 are integrally formed, which can facilitate manufacturing and assembly. Specifically, the main body 10 can be configured in a rectangular structure, which is relatively regular, and can facilitate arrangement and assembly when applied. A part of the injection pipe 30 is arranged on the main body 10, and a part of the injection pipe 30 extends out of the main body 10. Among them, the boss 23 is inwardly recessed on the first half 11 and the second half 12. Since the second part 20a gradually extends upward or in the direction close to the fire hole 101 towards the end of the main body 10, the second part 20a has a flat part below, and the first half 11 and the second half 12 can be provided with corresponding positioning holes 103, and the flat part can be used for connection with the cooking utensil 1000. For example, the cooking utensil 1000 has a support frame 300, and the support frame 300 is connected with the burner 100 through the positioning hole 103.

[0075] In combination Figure 4 According to the cooking utensil 1000 of the present application, the burner 100, the gas supply assembly 200 and the igniter are provided, the gas supply assembly 200 provides gas to the injection flow channel 301, and the igniter is arranged on the burner 100 and is suitable for igniting the gas of the burner 100.

[0076] According to the cooking utensil 1000 of the present application, the burner 100 is applied to the cooking utensil 1000, which can improve the compactness and combustion effect of the burner 100.

[0077] Specifically, the burner 100 can be arranged at the bottom of the cooking utensil 1000, and when applied, the gas and air mixture entering the injection flow channel 301 flows to the distribution flow channel 20 after preliminary mixing inside the injection flow channel 301, and then flows out through the fire hole 101 to be ignited and burned. The heat generated by the combustion enters the inner container through the opening at the bottom of the inner container, thereby cooking the food inside the inner container.

[0078] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0079] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

[0080] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0081] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0082] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0083] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A burner (100) characterized in that, The burner comprises a plurality of fire holes (101), an injection flow channel (301) and a distribution flow channel (20), the plurality of fire holes (101) are arranged along a first direction, the distribution flow channel (20) and the plurality of fire holes (101) are distributed along a second direction, and the distribution flow channel (20) has a first side (21) opposite to the plurality of fire holes (101), the first direction and the second direction are perpendicular, The distribution flow channel (20) comprises a first part (20a) and a second part (20b), the injection flow channel (301), the first part (20a) and the second part (20b) are distributed along the first direction and sequentially communicated, the first part (20a) is provided with a boss (23) near the side of the plurality of fire holes (101), the boss (23) comprises a second side (22) opposite to the first side (21), the second side (22) comprises a first guide surface (221), an end of the first guide surface (221) extends to an edge of the first part (20a) near the second part (20b), Wherein, the distance between the first guide surface (221) and the first side (21) gradually decreases in the direction away from the injection flow channel (301).

2. Burner (100) according to claim 1, characterized in that The angle between the first guide surface (221) and the first direction is greater than or equal to 0 and less than or equal to 10°; and / or, the first guide surface (221) is parallel to the first direction; And / or, the first side (21) extends along the first direction and inclines towards the plurality of fire holes (101) in the direction away from the injection flow channel (301).

3. Burner (100) according to claim 1 or 2, characterized in that The second side (22) further comprises a second guide surface (222), the second guide surface (222) is closer to the injection flow channel (301) than the first guide surface (221), and the distance between the first side (21) and the second guide surface (222) gradually decreases in the direction away from the injection flow channel (301).

4. Burner (100) according to claim 3, characterized in that The first guide surface (221) and the second guide surface (222) are parallel; and / or, the angle between the second guide surface (222) and the first direction is greater than or equal to 0 and less than or equal to 10°; and / or, the second guide surface (222) is parallel to the first direction.

5. Burner (100) according to claim 3, characterized in that The distance between the second guide surface (222) and the plurality of fire holes (101) is greater than the distance between the first guide surface (221) and the plurality of fire holes (101), and the second side (22) further comprises a third guide surface (223) connected between the first guide surface (221) and the second guide surface (222).

6. Burner (100) according to claim 5, characterized in that The third guide surface (223) is provided as an inclined plane gradually away from the second side (22) in the direction away from the injection flow channel (301); or, the third guide surface (223) is provided as an arc surface gradually away from the second side (22) in the direction away from the injection flow channel (301); And / or, the angle between the third guide surface (223) and the first direction is greater than or equal to 30° and less than or equal to 60°.

7. The burner (100) according to claim 1, characterized in that An angle between the first side (21) and the first direction is greater than or equal to 5° and less than or equal to 15°.

8. The burner (100) according to claim 1, characterized in that The injection channel (301) extends along the first direction.

9. Burner (100) according to claim 8, characterized in that One end of the injection channel (301) extends beyond the end of the plurality of fire holes (101) along the first direction, and the other end is distributed with the plurality of fire holes (101) along the second direction.

10. The burner (100) according to claim 1, characterized in that The boss (23) is configured by a side wall of the distribution channel (20) along the third direction protruding inwardly of the distribution channel (20).

11. The burner (100) according to claim 1, characterized in that The combustor (100) further comprises a communication groove (50) extending along the first direction and communicating the plurality of fire holes (101).

12. Burner (100) according to claim 11, characterized in that The distribution channel (20) comprises a first channel (201), a second channel (202) and a third channel (203) communicating with each other, the first channel (201) is opposite to the boss (23) along the third direction, the first channel (201) is arranged between the second channel (202) and the communication groove (50), and the third channel (203) is arranged on the side of the second channel (202) away from the injection channel (301) and is distributed with the communication groove (50) along the second direction.

13. Burner (100) according to claim 12, characterized in that The size value of the first channel (201) along the third direction is L31, the size value of the second channel (202) along the third direction is L32, the size value of the third channel (203) along the third direction is L33, and the size value of the communication groove (50) along the third direction is L34, Wherein, L31 < L32; and / or, L31 < L33; and / or, L31 < L34; and / or, L34 < L32; and / or, L34 < L33.

14. The combustor (100) of claim 12, characterized in that, The combustor (100) further comprises a gas collecting cavity (40) arranged between the injection channel (301) and the distribution channel (20) and communicating the injection channel (301), the first channel (201), the second channel (202) and the communication groove (50).

15. Burner (100) according to claim 14, characterized in that The size value of the first channel (201) along the third direction is L31, the size value of the second channel (202) along the third direction is L32, the size value of the third channel (203) along the third direction is L33, and the size value of the communication groove (50) along the third direction is L34, Wherein, L31 < L35; and / or, L32 < L35; and / or, L34 < L35; and / or, L34 < L33; and / or, L34 < L32.

16. A gas oven, characterized by The combustor (100) comprises any one of claims 1-15.

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