Cooking equipment

By installing a flow restrictor and a vent on the combustion chamber inlet, the problem of poor burner stability is solved, achieving stable combustion of the burner and efficient heating of the cooking equipment.

CN223715564UActive Publication Date: 2025-12-26HANDAN MIDEA INTELLIGENT KITCHEN ELECTRIC MFG CO LTD
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Patent Information

Application Number
CN202423187571.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-12-26
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

In existing cooking equipment with burners, such as gas ovens and gas steamers, the burner's operational stability is poor, which affects cooking efficiency.

Method used

A flow restrictor is installed at the fitting port of the combustion chamber. The flow restrictor has vent holes to control the amount of air supplied to the combustion chamber, prevent excessive air from being drawn into the vicinity of the burner, and improve the combustion stability of the burner.

Benefits of technology

The design of the flow restrictor effectively limits the entry of secondary air, improves the working stability of the burner, enhances the combustion efficiency of the burner, and improves the heating uniformity of the cooking equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of kitchen appliances, and particularly discloses cooking equipment which comprises a machine body, a flow limiting plate and a combustor, the machine body is provided with a cooking cavity and a combustion chamber, the combustion chamber is communicated with the cooking cavity, and a matching opening is formed in the lower portion of the combustion chamber; the flow limiting plate covers the matching opening and is provided with a vent hole for introducing air into the combustion chamber; the combustor is arranged opposite to the matching opening, the combustor is configured to heat objects in the cooking cavity through fuel gas, and the combustor comprises fire holes for controlling the fuel gas to burn above the flow limiting plate. According to the cooking equipment provided by the embodiment of the utility model, the flow limiting plate is arranged to cover the matching opening of the combustion chamber, and the vent hole for introducing air into the combustion chamber is formed in the flow limiting plate, so that excessive air can be prevented from being involved in the vicinity of the fire hole in the working process of the combustor, and the flow of secondary air required by combustion of the combustor is limited; and the combustion stability of the combustor is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field, especially a kind of cooking equipment. BACKGROUND

[0002] Gas oven, gas steamer and other cooking equipment with burner, heat is generated by burner combustion, and heat is transferred to the inside of cooking equipment, and then the food of cooking equipment is heated, break through the limit of electric heating, burner as the key component of heating, its design affects the cooking efficiency of cooking equipment. SUMMARY

[0003] The utility model aims at at least one of the technical problems in the related art is solved to some extent.

[0004] According to the cooking equipment of the utility model embodiment, it comprises: body, flow limiting plate and burner, the body is equipped with cooking cavity and combustion chamber, the combustion chamber is communicated with the cooking cavity, the lower part of the combustion chamber is equipped with cooperation mouth;The flow limiting plate covers the cooperation mouth, the flow limiting plate is equipped with air hole for letting in air to the combustion chamber;The burner is arranged opposite the cooperation mouth, the burner is configured to heat the articles in the cooking cavity using gas, and the burner includes a fire hole for controlling gas combustion above the flow limiting plate.

[0005] According to the cooking equipment of the utility model embodiment, the cooperation mouth of the combustion chamber is covered by the flow limiting plate, and the flow limiting plate is provided with air hole for letting in air to the combustion chamber, which can avoid too much air being drawn into the vicinity of the fire hole during the operation of the burner, thereby limiting the secondary air required for the combustion of the burner and improving the combustion stability of the burner.

[0006] In addition, the cooking equipment according to the above embodiments of the utility model can also have the following additional technical features:

[0007] In some embodiments, the flow limiting plate comprises a positioning plate, the positioning plate is provided with a mounting port, the fire hole of the burner passes through the mounting port, and the air hole is arranged around the mounting port.

[0008] In some embodiments, the mounting port is in the shape of a long strip, wherein both sides of the mounting port in the width direction are provided with the air hole;And / or, the air hole comprises a plurality of air holes distributed along the length direction of the mounting port.

[0009] In some embodiments, the flow limiting plate comprises a positioning plate extending in the left-right direction and a first flange connected to the left end of the positioning plate and extending downward, and the left end of the burner is provided with a bracket, and the first flange and the bracket are connected in the left-right direction.

[0010] In some embodiments, the flow limiting plate further comprises a second flange connected to the first flange, and the second flange and the bracket are connected in the up-down direction.

[0011] In some embodiments, the bracket comprises a first positioning portion, a second positioning portion and a third positioning portion, the first positioning portion is connected to the burner in the front-back direction and fixedly connected, the second positioning portion is connected to the first positioning portion and extends in the front-back direction, the second positioning portion is stacked with the first flange, and the third positioning portion is connected to the second positioning portion, and the third positioning portion is stacked with the second flange.

[0012] In some embodiments, the flow limiting plate comprises a positioning plate extending in the left-right direction and a third flange connected to the right end of the positioning plate and extending downward, and the third flange is in contact with the right end of the burner in the left-right direction.

[0013] In some embodiments, the flow limiting plate further comprises a fourth flange connected to the third flange, and the fourth flange and the right end of the burner are connected in the front-back direction.

[0014] In some embodiments, the burner is provided with a boss, and the flow limiting plate further comprises a fifth flange connected to the fourth flange and abutting above the boss.

[0015] In some embodiments, the burner is arranged at the rear of the body, and the flow limiting plate is connected to the back plate of the body.

[0016] In some embodiments, the body is further provided with a flue gas circulation channel, the flue gas circulation channel is in communication with the combustion chamber, and the cooking cavity, the combustion chamber and the flue gas circulation channel are arranged in the front-back direction.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the cooking equipment according to an embodiment of the present application.

[0019] Figure 2Is the cross section schematic diagram of the cooking equipment of the embodiment of the utility model.

[0020] Figure 3 Is Figure 2 The enlarged schematic view at the middle circle A.

[0021] Figure 4 Is the explosion schematic view of the burner and the flow limiting plate of the embodiment of the utility model.

[0022] Figure 5 Is the schematic view of the burner and the flow limiting plate of the embodiment of the utility model.

[0023] Figure 6 Is Figure 5 The enlarged schematic view at the middle circle B.

[0024] Figure 7 Is the schematic view of the burner and the flow limiting plate of the embodiment of the utility model from another angle.

[0025] Figure 8 Is Figure 7 The enlarged schematic view at the middle circle C.

[0026] Reference signs:

[0027] Cooking equipment 100, machine body 10, cooking cavity 11, combustion chamber 12, matching mouth 121, flue gas circulation channel 13, flow limiting plate 20, air hole 21, positioning plate 22, mounting mouth 221, first flanging part 231, second flanging part 232, third flanging part 241, fourth flanging part 242, fifth flanging part 243, burner 30, fire hole 31, support 32, first positioning part 321, second positioning part 322, third positioning part 323, boss 33. DETAILED DESCRIPTION

[0028] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs 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 the limitation of the utility model.

[0029] In combination Figures 1 to 3According to the cooking equipment 100, the air outside the cooking equipment 100 can enter above the flow limiting plate 20 from the air vent hole 21 of the flow limiting plate 20, and provides secondary air for the burner 30, and by arranging the flow limiting plate 20, the working stability of the burner 30 can be improved.

[0030] In combination Figure 3 The cooking equipment 100 further comprises a flow limiting plate 20, the flow limiting plate 20 covers the matching port 121, and the flow limiting plate 20 is provided with an air vent hole 21 for introducing air into the combustion chamber 12; and the burner 30 comprises a fire hole 31 for controlling combustion of gas above the flow limiting plate 20.

[0031] Specifically, the burner 30 is arranged below the combustion chamber 12, and the burner 30 is opposite to the matching port 121, so that high-temperature flue gas generated by the burner 30 can enter the combustion chamber 12 through the matching port 121, and the combustion chamber 12 is communicated with the cooking cavity 11 to heat the articles in the cooking cavity 11. Air outside the cooking equipment 100 can enter above the flow limiting plate 20 from the air vent hole 21 of the flow limiting plate 20, and provides secondary air for the burner 30, and by arranging the flow limiting plate 20, the working stability of the burner 30 can be improved.

[0032] According to the cooking equipment 100, the air outside the cooking equipment 100 can enter above the flow limiting plate 20 from the air vent hole 21 of the flow limiting plate 20, and provides secondary air for the burner 30, and by arranging the flow limiting plate 20, the working stability of the burner 30 can be improved.

[0033] It should be noted that primary air refers to air that is premixed with fuel and participates in combustion; secondary air in the present application refers to air that is additionally introduced in the combustion process on the basis of primary air, in addition to the initial mixing of fuel and air, to supplement the oxygen consumed in the combustion process, to improve combustion efficiency and reduce harmful gas emissions.

[0034] The flow limiting plate 20 can be arranged on one side of the fire hole 31, or the flow limiting plate 20 can be provided with a mounting port 221, and the fire hole 31 penetrates the mounting port 221. In addition, the flow limiting plate 20 is provided with air holes 21, the air holes 21 include one or more arranged near the fire hole 31, the air holes 21 can be circular, strip-shaped, etc.; or the flow limiting plate 20 is provided with a plurality of air holes 21, and the plurality of air holes 21 are configured as grid holes; the air holes 21 can be arranged on one side of the fire hole 31, or the air holes 21 are arranged around the fire hole 31.

[0035] In combination Figure 2 In some embodiments of the present application, the machine body 10 is further provided with a flue gas circulation channel 13, the flue gas circulation channel 13 communicates with the combustion chamber 12, the cooking cavity 11, the combustion chamber 12 and the flue gas circulation channel 13 are arranged in sequence along the front-rear direction, the flue gas circulation channel 13 can facilitate the flue gas of the combustion chamber 12 to flow between the combustion chamber 12 and the cooking cavity 11, promote the mixing and circulation of the air in the cooking cavity 11 and the high-temperature flue gas in the combustion chamber 12, heat the food in the cooking cavity 11 by the flowing hot air, and improve the cooking efficiency and heating uniformity.

[0036] Exemplarily, the flue gas circulation channel 13 can be provided with a fan, and it can be understood that the fan is easy to generate negative pressure in the combustion chamber 12 in the rotating process, and the air outside the cooking device 100 is sucked into the combustion chamber 12, which affects the combustion stability of the burner 30. By covering the matching port 121 with the flow limiting plate 20, and burning the fire hole 31 of the burner 30 above the flow limiting plate 20, the resistance of the secondary air entering the combustion chamber 12 can be increased, the amount of secondary air in the combustion chamber 12 is limited, and the stability of the burner 30 is improved. Especially when the volume of the cooking cavity 11 is large, the required air volume is also large, and when the fan is working, the amount of air sucked in is also large. By covering the matching port 121 with the flow limiting plate 20 and introducing air into the combustion chamber 12 through the air holes 21, the secondary air entering the combustion chamber 12 can be limited, and the influence of too much air entering the combustion chamber 12 on the burner 30 can be avoided, thereby improving the combustion stability of the burner 30.

[0037] In combination Figure 4In some embodiments of the utility model, the flow limiting plate 20 includes a positioning plate 22, the positioning plate 22 is equipped with the installation port 221, the fire hole 31 of burner 30 is equipped with the installation port 221, and the air hole 21 is arranged around the installation port 221. Specifically, the flow limiting plate 20 can be positioned in the burner 30, and the air hole 21 is arranged around the fire hole 31, which facilitates the provision of secondary air for the burner 30 through the air hole 21, promotes the full combustion of the burner 30 and improves the combustion efficiency. The fire hole 31 is equipped with the installation port 221 of the positioning plate 22, on the one hand, it is convenient to control the amount of secondary air entering the burner 30 through the air hole 21, and it is convenient to install the flow limiting plate 20, so that the matching structure of the flow limiting plate 20 and the burner 30 is compact.

[0038] In combination Figure 4 In some embodiments of the utility model, the installation port 221 is long strip-shaped, wherein both sides of the width direction of the installation port 221 are provided with air holes 21. Specifically, the fire hole 31 can include a plurality of sub-fire holes arranged at intervals along the left-right direction, and the width direction of the installation port 221 is the front-back direction shown in the drawing, that is, the air holes 21 are arranged on both sides of the fire hole 31, which facilitates the supply of secondary air to the burner 30 from both sides of the fire hole 31 to promote the full combustion of the burner 30.

[0039] In combination Figure 4 In some embodiments of the utility model, the installation port 221 is long strip-shaped, and the air hole 21 includes a plurality of air holes distributed at intervals along the length direction of the installation port 221. Specifically, the fire hole 31 can include a plurality of sub-fire holes 31 arranged at intervals along the left-right direction, and the length direction of the installation port 221 is the left-right direction shown in the drawing, that is, the air holes 21 are arranged in the extension direction of the plurality of sub-fire holes 31, which facilitates the supply of secondary air to the burner 30 to promote the full combustion of the burner 30.

[0040] In combination Figures 4 to 6 In some embodiments of the utility model, the flow limiting plate 20 includes a positioning plate 22 and a first flange portion 231, the positioning plate 22 extends along the left-right direction, the first flange portion 231 is connected to the left end of the positioning plate 22 and extends downward, the left end of the burner 30 is provided with a support 32, and the first flange portion 231 and the support 32 are connected in layers along the left-right direction. Exemplarily, the flow limiting plate 20 can be fixed with the burner 30, which facilitates the installation of the flow limiting plate 20 and makes the matching structure of the flow limiting plate 20 and the burner 30 compact. Among them, the burner 30 extends along the left-right direction, by setting the first flange portion 231 to be connected in layers with the left end of the burner 30, it is convenient to position and install the flow limiting plate 20 with the burner 30, improve the installation efficiency of the flow limiting plate 20 and the burner 30, in addition, the first flange portion 231 and the support 32 are connected in layers, through the positioning of the surface and the surface, the connection stability of the flow limiting plate 20 and the burner 30 can be improved.

[0041] Wherein, the positioning plate 22 can be matched with the fire hole 31 of the burner 30, and the air vent 21 can be arranged on the positioning plate 22, so that the supplementary secondary air for the burner 30 can be supplied through the air vent 21, and too much air entering the combustion chamber 12 can be avoided to affect the combustion stability of the burner 30.

[0042] It should be noted that the up-down direction, the left-right direction, the front-rear direction and the like in the present application indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for the purpose of facilitating the simplified description of the cooking equipment 100, and do not indicate or imply that the cooking equipment 100 must have a specific orientation or be constructed in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0043] In combination Figures 4 to 6 Further, the flow limiting plate 20 further comprises a second flange portion 232 connected with the first flange portion 231, and the second flange portion 232 is connected with the bracket 32 in the up-down direction. Specifically, the flow limiting plate 20 can be installed on the burner 30 in the direction from top to bottom, and the second flange portion 232 can be arranged to facilitate the positioning of the installation of the flow limiting plate 20 and the burner 30 in the up-down direction, and the second flange portion 232 is stacked with the bracket 32 in the up-down direction, and the positioning of the surface and the surface can improve the connection stability of the flow limiting plate 20 and the burner 30.

[0044] Wherein, the bracket 32 can be fixedly connected with the burner 30, and the fixed connection can be achieved by welding or a locking member. In addition, the flow limiting plate 20 and the burner 30 can be fixedly connected by a locking member, and the bracket 32 and the second flange portion 232 can be fixedly connected by a locking member.

[0045] In combination Figure 6In some embodiments of the utility model, the support 32 includes a first positioning part 321, a second positioning part 322 and a third positioning part 323, the first positioning part 321 is connected with the combustor 30 in the front-back direction and is fixedly connected, the first positioning part 321 is positioned with the combustor 30 through the surface and the surface, can promote the connection stability of support 32 and combustor 30. The second positioning part 322 is connected with the first positioning part 321 and extends in the front-back direction, the second positioning part 322 is stacked with the first flanging part 231, the third positioning part 323 is connected with the second positioning part 322, and the third positioning part 323 is stacked with the second flanging part 232. In combination with the foregoing, by setting the first flanging part 231 and the second flanging part 232 on the flow limiting plate 20, the first flanging part 231 is stacked with the first positioning part 321 in the left-right direction, the second flanging part 232 is stacked with the third positioning part 323 in the up-down direction, the flow limiting plate 20 is positioned in the left-right direction and the up-down direction, and the connection stability of the combustor 30 and the flow limiting plate 20 is improved through the surface and the surface positioning. The support 32 can be used as the connecting structure of the flow limiting plate 20 and the combustor 30 at the left end, facilitating the quick positioning of the combustor 30 and the flow limiting plate 20, and improving the connection stability.

[0046] In combination with the foregoing, Figure 7 And Figure 8 In some embodiments of the utility model, the flow limiting plate 20 includes a positioning plate 22 and a third flanging part 241, the positioning plate 22 extends in the left-right direction, the third flanging part 241 is connected to the right end of the positioning plate 22 and extends downward, and the third flanging part 241 is in contact with the right end of the combustor 30 in the left-right direction. Exemplarily, the flow limiting plate 20 can be fixed with the combustor 30, facilitating the installation of the flow limiting plate 20, and making the cooperation structure of the flow limiting plate 20 and the combustor 30 compact. Wherein, the combustor 30 extends in the left-right direction, and by setting the third flanging part 241 to be connected with the right end of the combustor 30, the positioning and installation of the flow limiting plate 20 and the combustor 30 are facilitated, and the installation efficiency of the flow limiting plate 20 and the combustor 30 is improved.

[0047] Wherein, the positioning plate 22 can be matched with the fire hole 31 of the combustor 30, and the air hole 21 can be arranged on the positioning plate 22, facilitating the supply of secondary air to the combustor 30 through the air hole 21, and avoiding too much air from entering the combustion chamber 12 to affect the combustion stability of the combustor 30.

[0048] Further, the flow limiting plate 20 further includes a fourth flanging part 242, the fourth flanging part 242 is connected with the third flanging part 241, the fourth flanging part 242 and the right end of the combustor 30 are stacked and connected in the front-back direction, the fourth flanging part 242 and the combustor 30 are positioned through the surface and the surface, and the connection stability of the combustor 30 and the flow limiting plate 20 is improved.

[0049] In combination with the foregoing, the third flange portion 241 can facilitate positioning of the flow limiting plate 20 with the right end of the burner 30, and the fourth flange portion 242 is connected with the burner 30 in a stacked manner, which can facilitate improving the connection stability of the flow limiting plate 20 with the burner 30.

[0050] In combination with the foregoing, Figure 7 and Figure 8 In some embodiments of the present application, the burner 30 is provided with a boss 33, and the flow limiting plate 20 further comprises a fifth flange portion 243 connected with the fourth flange portion 242 and abutting above the boss 33. Exemplarily, the flow limiting plate 20 can be installed to the burner 30 in a direction from top to bottom, and through cooperation of the boss 33 and the fifth flange portion 243, the flow limiting plate 20 can be positioned in the top-bottom direction, and the connection stability of the flow limiting plate 20 with the burner 30 can be improved.

[0051] In combination with the foregoing, Figures 1 to 8 In some specific embodiments of the present application, the flow limiting plate 20 can comprise a positioning plate 22 extending in a left-right direction, the positioning plate 22 is provided with a mounting hole 221, the fire hole 31 of the burner 30 is arranged through the mounting hole 221, and the air hole 21 is arranged around the mounting hole 221. The flow limiting plate 20 further comprises a first flange portion 231 and a second flange portion 232 connected with the left end of the positioning plate 22, the first flange portion 231 is connected with the bracket 32 of the left end of the burner 30 in a stacked manner in the left-right direction, and the second flange portion 232 is connected with the bracket 32 of the burner 30 in a stacked manner in the top-bottom direction. The flow limiting plate 20 further comprises a third flange portion 241, a fourth flange portion 242 and a fifth flange portion 243 connected with the right end of the positioning plate 22, the third flange portion 241 is in contact with the right end of the burner 30 in the left-right direction, the fourth flange portion 242 is connected with the right end of the burner 30 in a stacked manner in the front-back direction, and the fifth flange portion 243 abuts above the boss 33 of the burner 30. The flow limiting plate 20 is provided with the positioning structure cooperating with the burner 30 at both left and right ends, and the left and right ends of the flow limiting plate 20 are provided with the positioning structure cooperating with the burner 30 in the top-bottom direction, which facilitates quick positioning and positioning accuracy with the burner 30, improves the installation efficiency, and in addition, the positioning structure and the burner are positioned by the surface-to-surface positioning, which can improve the connection stability of the flow limiting plate 20 with the burner 30.

[0052] In combination with the foregoing, Figure 2 In some embodiments of the present application, the burner 30 is arranged at the rear part of the body 10, and the flow limiting plate 20 is connected with the back plate of the body 10, which can facilitate improving the structural stability of the flow limiting plate 20. In the present application, the burner 30 is arranged at the rear part of the body 10, which optimizes the heat circulation flow path of the cooking equipment 100, makes the structure of the cooking equipment 100 compact and improves the heating efficiency.

[0053] The various embodiments / embodiments of the utility model can be combined with each other without contradiction.

[0054] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0055] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0056] In the utility model, unless otherwise specifically defined and limited, 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 indirectly contacted through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be the first feature directly above or obliquely above the second 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" of the second feature can be the first feature directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0057] In the description of the specification, 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 utility model. In the specification, 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 examples described in the specification and the features of different embodiments or examples without contradiction.

[0058] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A cooking apparatus (100), characterized in that, The utility model relates to a cooking stove, and particularly relates to a cooking stove with a flow limiting plate. The utility model discloses a cooking stove, which comprises a body (10) provided with a cooking cavity (11) and a combustion chamber (12) in communication with the cooking cavity (11), a lower part of the combustion chamber (12) being provided with a matching port (121); a flow limiting plate (20) covering the matching port (121), the flow limiting plate (20) being provided with a ventilation hole (21) for introducing air into the combustion chamber (12); and a burner (30) arranged opposite to the matching port (121), the burner (30) being configured to heat articles in the cooking cavity (11) by using gas, the burner (30) comprising a fire hole (31) for controlling combustion of the gas above the flow limiting plate (20). The flow limiting plate (20) comprises a positioning plate (22) provided with a mounting port (221), the fire hole (31) of the burner (30) penetrating through the mounting port (221), and the ventilation hole (21) being arranged around the mounting port (221). The mounting port (221) is in a strip shape, wherein both sides of the mounting port (221) in the width direction are provided with the ventilation hole (21); and / or the ventilation hole (21) comprises a plurality of ventilation holes spaced apart along the length direction of the mounting port (221).

2. The cooking apparatus (100) according to claim 1, characterized in that, The flow limiting plate (20) comprises the positioning plate (22) extending in the left-right direction and a first flange portion (231) connected to the left end of the positioning plate (22) and extending downward, the left end of the burner (30) being provided with a bracket (32), the first flange portion (231) and the bracket (32) being connected in a stack in the left-right direction.

3. The cooking apparatus (100) according to claim 2, characterized in that, The flow limiting plate (20) further comprises a second flange portion (232) connected to the first flange portion (231), the second flange portion (232) and the bracket (32) being connected in a stack in the up-down direction.

4. The cooking apparatus (100) according to claim 1, characterized in that, The bracket (32) comprises a first positioning portion (321), a second positioning portion (322) and a third positioning portion (323), the first positioning portion (321) being connected to the burner (30) in a stack in the front-back direction and fixedly connected, the second positioning portion (322) being connected to the first positioning portion (321) and extending in the front-back direction, the second positioning portion (322) being stacked with the first flange portion (231), and the third positioning portion (323) being connected to the second positioning portion (322), the third positioning portion (323) being stacked with the second flange portion (232).

5. The cooking apparatus (100) according to claim 4, characterized in that, The flow limiting plate (20) comprises the positioning plate (22) extending in the left-right direction and a third flange portion (241) connected to the right end of the positioning plate (22) and extending downward, the third flange portion (241) being in contact with the right end of the burner (30) in the left-right direction.

6. The cooking apparatus (100) according to claim 5, characterized in that, ​ 7. The cooking apparatus (100) according to claim 1, characterized in that, ​ 8. The cooking apparatus (100) according to claim 7, characterized in that, The flow limiting plate (20) further comprises a fourth flange portion (242) connected to the third flange portion (241), and the fourth flange portion (242) and the right end of the burner (30) are connected in a front-rear direction.

9. The cooking apparatus (100) according to claim 8, characterized in that, The burner (30) is provided with a boss (33), and the flow limiting plate (20) further comprises a fifth flange portion (243) connected to the fourth flange portion (242) and abutting above the boss (33).

10. The cooking apparatus (100) according to claim 1, characterized in that, The burner (30) is arranged at the rear of the machine body (10), and the flow limiting plate (20) is connected to the back plate of the machine body (10).

11. The cooking apparatus (100) according to claim 1, characterized in that, The machine body (10) is further provided with a flue gas circulation channel (13) in communication with the combustion chamber (12), and the cooking cavity (11), the combustion chamber (12) and the flue gas circulation channel (13) are arranged in sequence in a front-rear direction.