Cooking appliance

Abstract

A cooking appliance (100), comprising: a base (110); a baking part (120), which is mounted on the base (110), wherein the baking part (120) is used for placing food ingredients, and the baking part (120) can rotate relative to the base (110); an infrared burner (130), which is mounted on the base (110), the infrared burner (130) comprising a radiating portion (140), wherein the radiating portion (140) is capable of burning combustible gas and radiating thermal energy, and the radiating portion (140) faces the baking part (120).

Description

cooking utensils

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number: 202322653402.9 and application date of September 28, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference.

[0003] This application is based on the Chinese patent application with application number: 202311272516.7 and application date of September 28, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference.

[0004] This application is based on the Chinese patent application with application number: 202311272286.4 and application date of September 28, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0005] The present application belongs to the technical field of kitchen equipment, and specifically relates to a cooking utensil. Background Art

[0006] Existing pizza ovens usually only have one burner to increase the temperature inside the oven. However, due to the low thermal efficiency of ordinary burners, the pizza oven has the problem of slow temperature rise and slow heating speed of the pizza stone, which leads to low baking efficiency.

[0007] Application Contents

[0008] To this end, the present application proposes a cooking appliance, which can quickly increase the temperature of the baking portion and the temperature inside the cooking appliance by heating with an infrared burner, thereby effectively improving the baking efficiency.

[0009] According to an embodiment of the present application, the device includes: a base; a baking portion installed on the base, the baking portion is used to place food, and the baking portion can rotate relative to the base; an infrared burner installed on the base, the infrared burner includes a radiation portion, the infrared radiation portion can burn combustible gas and radiate heat energy, and the radiation portion faces the baking portion.

[0010] According to the cooking utensil of the embodiment of the present application, an infrared burner is provided. The infrared burner has the advantages of high energy utilization and fast heating speed. Therefore, heating by the infrared burner can quickly increase the temperature of the baking part and the temperature inside the cooking utensil, thereby improving the baking efficiency.

[0011] Optionally, the infrared burner also includes: a transmission part, installed on the base, the transmission part is used to transmit the combustible gas; a main body, connected to the end of the transmission part away from the base, the transmission part can transmit the combustible gas into the main body, the radiation part is connected to the main body, and the main body can transmit the combustible gas to the radiation part.

[0012] Optionally, the main body includes: a shell connected to the transmission part; a guide plate connected to the shell, the guide plate and the shell together form a gas accommodating chamber, the gas accommodating chamber is connected to the transmission part, the radiation part is located on the side of the guide plate away from the gas accommodating chamber, and the guide plate has a plurality of guide holes.

[0013] Optionally, the radiation part includes: a combustion net installed on the shell, the combustion net is used to burn the combustible gas; an anti-backfire component located between the combustion net and the guide plate, the anti-backfire component is used to block the flame from entering the gas containing cavity; a support net is located between the anti-backfire component and the combustion net, the support net is used to support the combustion net.

[0014] Optionally, the mesh number of the combustion net ranges from 40 mesh to 200 mesh, the mesh number of the anti-tempering component ranges from 40 mesh to 200 mesh, and the mesh number of the support net ranges from 5 mesh to 40 mesh.

[0015] Optionally, there is a distance between the supporting net and the combustion net, and there is a distance between the supporting net and the backfire prevention member.

[0016] Optionally, the transmission part includes: a gas suction piece installed on the base, the gas suction piece is used to inhale the combustible gas; an ejector pipe, the two ends of the ejector pipe are respectively connected to the gas suction piece and the gas containing chamber, the ejector pipe is used to transfer the combustible gas into the gas containing chamber.

[0017] Optionally, the baking portion includes: a baking tray for placing the food; and a rotating member installed at the bottom of the baking tray, wherein the rotating member is used to drive the baking tray to rotate relative to the base.

[0018] Optionally, the cooking appliance further comprises: a driving motor connected to the rotating member, wherein the driving motor is used to drive the rotating member to rotate the baking tray.

[0019] Optionally, the rotating part includes: a turntable installed on the baking tray; a support shaft, the two ends of the support shaft are respectively connected to the drive motor and the turntable, and the support shaft is used to support the turntable and the baking tray so that there is a distance between the turntable and the baking tray and the base.

[0020] Optionally, the cooking appliance further comprises: a control component, which is disposed on the base, the control component being conductively connected to the infrared burner, and the control component being used to control the operation of the infrared burner.

[0021] Optionally, the cooking appliance further comprises: an outer cover, which is detachably fastened to the base. When the outer cover is fastened to the base, the outer cover and the base together form a cooking cavity.

[0022] Optionally, it further includes: an ignition device, which is provided on the infrared burner, and the ignition device is used to ignite the combustible gas.

[0023] Optionally, the cooking appliance comprises a pizza oven or a barbecue oven.

[0024] Optionally, the infrared burner includes a main body, a gas accommodating cavity is provided in the main body, and the main body is provided with a gas outlet connected to the gas accommodating cavity; the radiation part includes: a combustion net, the combustion net is provided on the main body and the opening of the gas outlet is facing the combustion net, the combustion net is provided with a plurality of combustion mesh holes, and the combustion net is constructed so that the equivalent diameter of the combustion mesh holes is ≤0.8mm; an anti-backfire part, in the thickness direction of the combustion net, the anti-backfire part is arranged side by side with the combustion net, and the anti-backfire part satisfies at least one of the following conditions: "the anti-backfire part is constructed to have heat insulation and is located between the combustion net and the main body; the anti-backfire part exchanges heat with the combustion net to dissipate heat from the combustion net."

[0025] Optionally, the combustion mesh is constructed to satisfy: 0.05 mm ≤ the equivalent diameter of each combustion mesh hole ≤ 0.3 mm.

[0026] Optionally, the tempering prevention component is a metal component and is formed into a mesh structure.

[0027] Optionally, the anti-tempering member is a wave mesh.

[0028] Optionally, there are multiple anti-backfire members, and the anti-backfire members are distributed on both sides of the combustion net; or, multiple anti-backfire members are located on the same side of the combustion net.

[0029] Optionally, the anti-backfire member is a heat-insulating material member filled between the combustion net and the main body.

[0030] Optionally, the anti-tempering component is thermal insulation wool or quartz wool.

[0031] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] FIG1 shows a schematic structural diagram of a cooking utensil according to an embodiment of the present application;

[0034] FIG2 shows one of the structural schematic diagrams of an infrared burner according to an embodiment of the present application;

[0035] FIG3 shows a second structural diagram of an infrared burner according to an embodiment of the present application;

[0036] FIG4 is a schematic diagram of a burner according to one embodiment of the present application;

[0037] FIG5 is an exploded view of the burner in FIG4 ;

[0038] FIG6 is a second exploded view of the burner in FIG4 ;

[0039] FIG7 is a schematic diagram of a combustion network according to an embodiment of the present application;

[0040] FIG8 is a schematic diagram showing the calculation results of quenching diameter at different temperatures and equivalence ratios;

[0041] FIG9 is a schematic diagram of gas combustion at the combustion network;

[0042] FIG10 is a schematic diagram showing a comparison of the effects of embodiments of combustion meshes with different equivalent diameters;

[0043] FIG11 is a schematic diagram of the cooperation between the wavy anti-backfire member and the combustion net;

[0044] FIG12 is a second schematic diagram of the cooperation between the wavy anti-backfire member and the combustion net;

[0045] FIG13 is a cross-sectional view of the burner in FIG4;

[0046] FIG14 is an enlarged view of portion A in FIG13 .

[0047] Figure numerals: 100, cooking utensil; 110, base; 120, baking part; 121, baking tray; 122, rotating part; 123, driving motor; 124, turntable; 125, supporting shaft; 130, infrared burner; 131, transmission part; 132, main body; 133, shell; 134, guide plate; 135, guide hole; 136, gas accommodating chamber; 137, gas suction part; 138, ejector tube; 139, first diverter plate; 1391, exhaust hole; 140, radiation part; 141, combustion net; 142, anti-backfire part; 143, supporting net; 150, control component; 160, outer cover; 161, cooking chamber; 170, ignition device. DETAILED DESCRIPTION

[0048] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0050] The following describes a cooking appliance 100 provided according to some embodiments of the present application with reference to FIG. 1 to FIG. 14 .

[0051] In one embodiment of the present application, as shown in Figures 1 and 2, the present application proposes a cooking utensil 100, including: a base 110; a baking portion 120, installed on the base 110, and the baking portion 120 is used to place food; an infrared burner 130, installed on the base 110, and the infrared burner 130 includes a radiation portion 140, which can burn combustible gas and radiate heat energy, and the radiation portion 140 is facing the baking portion 120.

[0052] The cooking utensil 100 proposed in the present application includes a base 110, a baking portion 120 and an infrared burner 130, wherein the baking portion 120 and the infrared burner 130 are installed on the base 110, the baking portion 120 is used to place food, and the infrared burner 130 is used to heat the food. Specifically, at least a portion of the baking portion 120 can be heated by the infrared burner 130. When food is placed on the baking portion 120, the heated baking portion 120 is in a high temperature state, so that the food can be baked. The food can be pizza, etc. Since the infrared burner 130 has the advantages of high energy utilization and fast heating and heating speed, heating by the infrared burner 130 can quickly increase the temperature of the baking portion 120 and the temperature inside the cooking utensil 100, thereby improving baking efficiency.

[0053] Furthermore, the infrared burner 130 is specifically defined. It includes a radiation portion 140, which is used to radiate heat energy. Specifically, a combustible gas (which can be a mixture of gas and air) can burn on the radiation portion 140, with the flame temperature exceeding 800°C. The flame heats the radiation portion 140, generating infrared heat radiation, which enables the radiation portion 140 to radiate heat energy.

[0054] Furthermore, the radiation portion 140 is arranged toward the baking portion 120, so that the heat energy radiated by the radiation portion 140 can be more concentrated in the baking portion 120, thereby increasing the heating rate of the baking portion 120, and further increasing the baking speed of the baking portion 120 for the food, thereby improving the baking efficiency.

[0055] The present application provides an infrared burner 130 in the cooking device 100. Compared to burners in the prior art, the infrared burner 130 has the advantages of high energy utilization and rapid heating and temperature rise. Therefore, heating by the infrared burner 130 can quickly increase the temperature of the baking portion 120 and the temperature inside the cooking device 100, thereby improving baking efficiency. Furthermore, by positioning the radiation portion 140 of the infrared burner 130 toward the baking portion 120, the heat energy radiated by the radiation portion 140 can be more concentrated in the baking portion 120, further increasing the temperature rise rate of the baking portion 120, thereby increasing the baking speed of the baking portion 120 and the baking efficiency of the baking portion 120.

[0056] In some embodiments, optionally, as shown in Figures 1 and 2, the infrared burner 130 also includes: a transmission part 131, installed on the base 110, the transmission part 131 is used to transmit combustible gas; a main body 132, connected to the end of the transmission part 131 away from the base 110, the transmission part 131 can transmit the combustible gas into the main body 132, the radiation part 140 is connected to the main body 132, and the main body 132 can transmit the combustible gas to the radiation part 140.

[0057] In this embodiment, the structure of the infrared burner 130 is defined. The infrared burner 130 also includes a transmission portion 131 and a main body 132. The transmission portion 131 is used to transmit combustible gas, and the main body 132 is used to mount the radiating portion 140. Specifically, the transmission portion 131 is mounted on the base 110. The transmission portion 131 is a tubular structure through which the combustible gas can flow to the radiating portion 140. The transmission portion 131 is connected to the main body 132, which has a cavity structure. The transmission portion 131 can transfer the combustible gas into the main body 132, which can store a certain amount of combustible gas. The radiating portion 140 is mounted on the main body 132. The main body 132 can transmit the combustible gas within to the radiating portion 140, which can burn on the radiating portion 140. The flame combustion temperature is above 800°C, thereby heating the radiating portion 140, generating infrared thermal radiation, which enables the radiating portion 140 to radiate heat energy.

[0058] By providing the main body 132 and the transmission part 131 in the infrared burner 130 , the combustible gas can be transmitted through the transmission part 131 , and the radiation part 140 is installed and fixed through the main body 132 , so that the combustible gas can flow smoothly to the radiation part 140 .

[0059] In some embodiments, optionally, as shown in Figures 2 and 3, the main body 132 includes: a shell 133, which is connected to the transmission part 131; a guide plate 134, which is connected to the shell 133, and the guide plate 134 and the shell 133 together form a gas accommodating chamber 136, and the gas accommodating chamber 136 is connected to the transmission part 131, and the radiation part 140 is located on the side of the guide plate 134 away from the gas accommodating chamber 136, and the guide plate 134 has a plurality of guide holes 135.

[0060] In this embodiment, the structure of the main body 132 is defined. The main body 132 includes a shell 133 and a deflector 134. Deflector 134 is connected to the shell 133. Together, they form a gas chamber 136, which is used to store combustible gas. The transmission unit 131 is connected to the shell 133 and communicates with the gas chamber 136. Combustible gas within the transmission unit 131 is transferred to the gas chamber 136, which can store a certain amount of combustible gas.

[0061] Furthermore, the guide plate 134 has a plurality of guide holes 135, through which the combustible gas within the gas receiving chamber 136 can flow toward the radiating portion 140, allowing the combustible gas to burn on the radiating portion 140, thereby increasing the temperature of the radiating portion 140 and allowing the radiating portion 140 to radiate heat energy. The guide holes 135 can guide the combustible gas. Since the combustible gas flows toward the radiating portion 140 through the guide holes 135, the rational design of the position of the plurality of guide holes 135 allows the combustible gas to flow more evenly toward the radiating portion 140, thereby avoiding uneven flame distribution at various locations on the radiating portion 140 and maintaining a uniform temperature at all locations on the radiating portion 140.

[0062] In some embodiments, optionally, as shown in Figures 2 and 3, the radiation portion 140 includes: a combustion net 141, installed on the shell 133, the combustion net 141 is used to burn combustible gas; an anti-backfire component 142, located between the combustion net 141 and the guide plate 134, the anti-backfire component 142 is used to block the flame from entering the gas containing cavity 136; a support net 143, located between the anti-backfire component 142 and the combustion net 141, the support net 143 is used to support the combustion net 141.

[0063] In this embodiment, the structure of the radiation portion 140 is further defined. The radiation portion 140 includes a combustion net 141, a backfire prevention member 142, and a support net 143. The combustion net 141 is used to burn the combustible gas, the backfire prevention member 142 is used to prevent backfire, and the support net 143 is used to support the combustion net 141. Specifically, the combustion net 141 is installed in the shell 133, the backfire prevention member 142 is located between the combustion net 141 and the guide plate 134, and the support net 143 is located between the backfire prevention member 142 and the combustion net 141. After the combustible gas in the gas accommodating cavity 136 flows out from the guide hole 135, it flows to the surface of the combustion net 141 through the backfire prevention member 142 and the support net 143 in sequence. The combustible gas burns on the surface of the combustion net 141, and the flame temperature is above 800°C. The flame heats the combustion net 141 to form infrared heat radiation.

[0064] Understandably, if the combustion mesh 141 deforms, the flame on its surface will become unstable, thus affecting the heating effect. To prevent deformation of the combustion mesh 141, the present application provides a support mesh 143 within the radiating portion 140. The support mesh 143 supports the combustion mesh 141 and prevents deformation. The support mesh 143 can be made of a high-strength, high-temperature-resistant material to enhance the stability of the combustion mesh 141.

[0065] Furthermore, to prevent the flame on the combustion net 141 from entering the gas receiving chamber 136 when it flashes back, the present application further provides a flashback prevention member 142 on the side of the support net 143 facing away from the combustion net 141. The flashback prevention member 142 has a smaller mesh size and a larger mesh count. Therefore, when flashback occurs, the flashback prevention member 142 can provide a certain degree of blocking effect on the flame, preventing the flame from entering the gas receiving chamber 136, thereby improving the safety of the cooking appliance 100.

[0066] By configuring the radiation portion 140 as a multi-layer structure comprising a combustion net 141, a support net 143, and a flashback prevention member 142, the support net 143 can support the combustion net 141, preventing deformation of the combustion net 141 and improving the stability of the combustion net 141, thereby ensuring that the flame can stably burn on the combustion net 141. The flashback prevention member 142 can block the flame in the event of flashback, preventing the flame from entering the gas receiving chamber 136, thereby improving the safety of the cooking appliance 100.

[0067] In some embodiments, optionally, the mesh number of the combustion net 141 ranges from 40 mesh to 200 mesh, the mesh number of the anti-tempering member 142 ranges from 40 mesh to 200 mesh, and the mesh number of the support net ranges from 5 mesh to 40 mesh.

[0068] In this embodiment, the combustion net 141, the support net 143, and the tempering prevention member 142 are further defined. Specifically, the mesh number of the combustion net 141 ranges from 40 mesh to 200 mesh, the mesh number of the tempering prevention member 142 ranges from 40 mesh to 200 mesh, and the mesh number of the support net ranges from 5 mesh to 40 mesh.

[0069] It is understandable that the combustion net 141 is used to burn the combustible gas to produce a flame, which requires the flame to be stably distributed and burned on the combustion net 141. Therefore, the mesh number of the combustion net 141 cannot be too small, otherwise it will cause uneven flames. Therefore, the present application sets the mesh number of the combustion net 141 in the range of 40 mesh to 200 mesh to ensure that the flame on the combustion net 141 remains stable. Since the support net 143 is set between the combustion net 141 and the gas accommodating chamber 136, the combustible gas needs to pass through the support net 143 to reach the combustion net 141. Therefore, the support net 143 needs to be set as a mesh structure with a large mesh size and a small mesh number. For this reason, the present application sets the mesh number of the support net 143 in the range of 5 mesh to 40 mesh to ensure that the combustible gas can smoothly pass through the support net 143. The anti-backfire component 142 is used to prevent backfire, so it is necessary to set the anti-backfire component 142 to a mesh structure with a larger mesh number. For this reason, the present application sets the mesh number of the anti-backfire component 142 in the range of 40 mesh to 200 mesh to enhance the barrier effect of the anti-backfire component 142.

[0070] In some embodiments, optionally, there is a distance between the support mesh 143 and the combustion mesh 141 , and there is a distance between the support mesh 143 and the backfire prevention member 142 .

[0071] In this embodiment, the support net 143, combustion net 141, and anti-backfire member 142 are further defined. Specifically, there is a gap between the support net 143 and the combustion net 141, and there is a gap between the support net 143 and the anti-backfire member 142. This is equivalent to providing an air insulation layer between the support net 143, the combustion net 141, and the anti-backfire member 142. Compared to a structure in which the support net 143, the combustion net 141, and the anti-backfire member 142 are arranged in close proximity, the present application reduces heat transfer between the support net 143, the combustion net 141, and the anti-backfire member 142 by providing gaps between the support net 143 and the combustion net 141, and between the support net 143 and the anti-backfire member 142, thereby lowering the temperature of the anti-backfire member 142, reducing the possibility of backfire, and improving the safety of the cooking appliance 100.

[0072] In some embodiments, optionally, as shown in Figures 1 and 2, the transmission part 131 includes: a gas suction part 137, which is installed on the base 110, and the gas suction part 137 is used to inhale combustible gas; an ejector pipe 138, and the two ends of the ejector pipe 138 are respectively connected to the gas suction part 137 and the gas containing chamber 136, and the ejector pipe 138 is used to transfer the combustible gas into the gas containing chamber 136.

[0073] In this embodiment, the structure of the transmission unit 131 is defined. The transmission unit 131 includes a gas suction member 137 and an ejector pipe 138. The gas suction member 137 is mounted on the base 110 and is capable of drawing in combustible gas. One end of the ejector pipe 138 is connected to the gas suction member 137, and the other end is connected to the gas receiving chamber 136. The combustible gas drawn in by the gas suction member 137 is transferred into the gas receiving chamber 136 through the ejector pipe 138. The combustible gas then flows from the gas receiving chamber 136 to the combustion net 141 of the radiating unit 140, ensuring the proper operation of the infrared burner 130.

[0074] By providing a gas suction member 137 and an ejector tube 138 in the transmission portion 131, combustible gas can be sucked in through the gas suction member 137 and transmitted through the ejector tube 138, thereby ensuring the normal operation of the infrared burner 130. In addition, the ejector tube 138 can also play a supporting role for the main body 132 and the radiation portion 140.

[0075] In some embodiments, optionally, the baking portion 120 is rotatable relative to the base 110 .

[0076] In this embodiment, the baking portion 120 is further defined. In order to improve the baking effect of the ingredients, the present application sets the baking portion 120 to be rotatable relative to the base 110 so that the ingredients are heated evenly. Specifically, during the baking process of the ingredients, the ingredients are placed on the baking portion 120, and the baking portion 120 is heated quickly by the infrared burner 130. The baking portion 120 can heat the ingredients with its own heat, and at the same time, the infrared burner 130 heats the entire interior of the cooking utensil 100. Since the infrared burner 130 is set on one side of the baking portion 120, this will cause the temperature of the side of the baking portion 120 close to the infrared burner 130 to be higher, while the temperature of the side away from the infrared burner 130 is lower. In order to ensure that the ingredients are heated evenly, the present application sets the baking portion 120 to be rotatable relative to the base 110. In this way, the ingredients placed on the baking portion 120 can be evenly heated, thereby improving the baking effect.

[0077] In some embodiments, optionally, as shown in FIG1 , the baking portion 120 includes: a baking tray 121 for placing food; and a rotating member 122 installed at the bottom of the baking tray 121 , the rotating member 122 being used to drive the baking tray 121 to rotate relative to the base 110 .

[0078] In this embodiment, the structure of the baking portion 120 is defined. The baking portion 120 includes a baking tray 121 and a rotating member 122. The baking tray 121 is used to place food, and the rotating member 122 is connected to the baking tray 121. The rotating member 122 can rotate relatively lower than the base 110, thereby driving the baking tray 121 to rotate relative to the base 110. During the rotation process, the baking tray 121 drives the food to rotate together, so that the food can be evenly heated and the baking effect is improved.

[0079] Furthermore, the rotating part 122 is installed at the bottom of the baking tray 121, so as to avoid the rotating part 122 from contacting the food. On the one hand, it can prevent the oil stains of the food from damaging the rotating part 122, and on the other hand, it can make the food fully contact with the baking tray 121 and fully heat the food.

[0080] In a possible embodiment, the baking tray 121 is made of stone. The baking tray 121 made of stone cools down slowly and retains heat for a long time, so that food can be baked for a long time.

[0081] In some embodiments, optionally, as shown in FIG. 1 , the cooking appliance 100 further includes a drive motor 123 connected to the rotating member 122 , and the drive motor 123 is configured to drive the rotating member 122 to rotate the baking tray 121 .

[0082] In this embodiment, the structure of the cooking appliance 100 is further defined. To enable the rotation of the rotating member 122, the present application further provides a drive motor 123 in the cooking appliance 100. Specifically, the drive motor 123 is connected to the rotating member 122 and is located at the bottom of the base 110. A portion of the rotating member 122 extends toward the bottom of the base 110 and is connected to the drive motor 123. The drive motor 123 drives the rotating member 122 to rotate, which in turn drives the baking tray 121 to rotate via the rotating member 122.

[0083] By setting a drive motor 123 in the cooking appliance 100 and connecting the drive motor 123 to the rotating member 122, the drive motor 123 can drive the rotating member 122 to rotate, and then the rotating member 122 can drive the baking tray 121 to rotate, so that the food placed on the baking tray 121 is heated evenly.

[0084] In some embodiments, optionally, as shown in Figure 1, the rotating member 122 includes: a turntable 124, which is installed on the baking tray 121; a support shaft 125, and the two ends of the support shaft 125 are respectively connected to the drive motor 123 and the turntable 124, and the support shaft 125 is used to support the turntable 124 and the baking tray 121 so that there is a distance between the turntable 124 and the baking tray 121 and the base 110.

[0085] In this embodiment, the structure of the rotating member 122 is defined. The rotating member 122 includes a turntable 124 and a support shaft 125. The turntable 124 is mounted on the bottom of the baking tray 121. One end of the support shaft 125 is connected to the turntable 124, and the other end is connected to the drive motor 123. The drive motor 123 drives the turntable 124 to rotate via the support shaft 125, and the turntable 124 drives the baking tray 121 to rotate.

[0086] Furthermore, one end of the support shaft 125 connected to the turntable 124 protrudes from the surface of the base 110. The support shaft 125 supports the turntable 124 and the baking tray 121, so that there is a gap between the turntable 124 and the baking tray 121 and the base 110. In this way, when the turntable 124 and the baking tray 121 rotate relative to the base 110, there is no friction between the turntable 124 and the baking tray 121 and the surface of the base 110, and the high temperature of the baking tray 121 can also prevent the base 110 from being damaged.

[0087] In some embodiments, optionally, as shown in FIG1 , the cooking appliance 100 further includes: a control component 150 , which is disposed on the base 110 , and is conductively connected to the infrared burner 130 , and is used to control the operation of the infrared burner 130 .

[0088] In this embodiment, the structure of the cooking appliance 100 is further defined. To facilitate user use, the present application further provides a control assembly 150 within the cooking appliance 100. This control assembly 150 is used to control the operation of the infrared burner 130. Specifically, the control assembly 150 is mounted on the base 110 and is electrically connected to the infrared burner 130. The user can control the operation of the infrared burner 130 through the control assembly 150, enabling the user to control not only the start and stop of the infrared burner 130 but also its operating time and power.

[0089] In some embodiments, optionally, as shown in FIG1 , the cooking appliance 100 further includes: an outer cover 160 , which is detachably fastened to the base 110 . When the outer cover 160 is fastened to the base 110 , the outer cover 160 and the base 110 together form a cooking cavity 161 .

[0090] In this embodiment, the structure of the cooking appliance 100 is further defined. The cooking appliance 100 also includes an outer cover 160, which, together with the base 110, forms a cooking cavity 161. This maintains a high temperature within the cooking appliance 100 and reduces heat loss. Specifically, the outer cover 160 is detachably fastened to the base 110. When the outer cover 160 is fastened to the base 110, the two components together form the cooking cavity 161. The burner and baking tray 121 are both located within the cooking cavity 161. Since the cooking cavity 161 is a closed cavity, heat loss is reduced, improving baking efficiency.

[0091] In some embodiments, optionally, as shown in FIG1 , the cooking appliance 100 further includes an ignition device 170 , which is provided on the infrared burner 130 , and the ignition device 170 is used to ignite the combustible gas.

[0092] In this embodiment, an ignition device 170 is further provided in the cooking appliance 100. The ignition device 170 is provided on the infrared burner 130. The ignition device 170 can ignite the combustible gas flowing to the combustion network 141, so that the infrared burner 130 can operate normally and generate heat energy.

[0093] In some embodiments, cooking appliance 100 optionally comprises a pizza oven or a grill.

[0094] In this embodiment, the cooking appliance 100 comprises a pizza oven or a grill.

[0095] In one possible embodiment, the present application provides an infrared fast preheating pizza oven (i.e., cooking appliance 100), comprising a control box (i.e., control assembly 150), an infrared burner 130, a pizza stone (i.e., baking tray 121), a turntable 124, a support frame (i.e., support shaft 125), a drive motor 123, etc. The upper surface of the base 110 is provided with pizza stones for placing pizzas, the turntable 124 is installed in the middle of the base 110, the drive motor 123 is installed below the base 110, the turntable 124 drives the pizza stone to rotate, and the infrared burner 130 is installed above the base 110, and its infrared radiation surface (i.e., radiation portion 140) is facing the pizza stone or slightly inclined. The present application utilizes the characteristics of the infrared burner 130 such as high energy utilization rate and fast heating temperature rise rate to achieve simultaneous rapid heating of the furnace cavity (i.e., cooking cavity 161) and the pizza stone, thereby shortening the preheating time in the cavity before baking the pizza.

[0096] The structure of infrared burner 130 is shown in Figure 2. Gas enters ejector tube 138 through a nozzle (i.e., gas intake member 137), entraining sufficient air into the inner cavity of infrared burner 130 (i.e., gas holding chamber 136), where it burns on the surface of infrared burner 130 (i.e., the surface of combustion screen 141). The gas-air mixture enters through ejector tube 138 and, after thorough mixing within the cavity, is evenly distributed through the airflow distribution plate onto the infrared radiation surface. The flame burns on combustion screen 141 on the infrared radiation surface. Support screen 143 supports combustion screen 141 and acts as a partial heat barrier. Anti-flashback member 142 prevents the flame from entering the inner cavity of infrared burner 130 in the event of backfire. The flame reaches a temperature above 800°C after combustion, heating combustion screen 141 and generating infrared heat radiation.

[0097] The combustion net 141 is outside the support net 143, the backfire prevention member 142 is inside, and the support net 143 is between the combustion net 141 and the backfire isolation net. After the gas flow passes through the backfire prevention member 142 and the support net 143, it burns on the combustion net 141.

[0098] The combustion mesh 141 is a mesh structure made of a high-temperature corrosion-resistant metal, with a mesh size between 40 and 200, and a thickness between 0.1 and 0.5 mm. The support mesh 143 is also a mesh structure made of a high-temperature corrosion-resistant metal, with a mesh size between 5 and 40, and a thickness between 0.2 and 2 mm. The tempering prevention member 142 is also a mesh structure made of a high-temperature corrosion-resistant metal, with a mesh size between 40 and 200, and a thickness between 0.1 and 0.5 mm.

[0099] The mesh size of the support net 143 is larger than the mesh size of the combustion net 141. There may be a certain distance between the support net 143 and the combustion net 141, which may be 0mm to 2mm. There may also be a certain distance between the tempering prevention member 142 and the support net 143, which may be 0mm to 2mm.

[0100] The infrared burner 130 according to an embodiment of the present application is described below with reference to FIG. 4 to FIG. 14 .

[0101] 4 , 5 and 6 , the infrared burner 130 according to an embodiment of the present application includes: a main body 132 and a combustion net 141. A gas accommodating chamber 136 is provided in the main body 132. The main body 132 is provided with a gas outlet connected to the gas accommodating chamber 136. The combustion net 141 is provided on the main body 132 and the opening of the gas outlet faces the combustion net 141. The combustion net 141 is provided with a plurality of combustion mesh holes. The combustion net 141 is constructed so that the equivalent diameter of the combustion mesh hole is ≤0.8 mm.

[0102] The gas holding chamber 136 is used to hold combustible gas. The gas in the gas holding chamber 136 can flow to the combustion net 141 through the gas outlet, and then the gas flows through the multiple combustion mesh holes on the combustion net 141 to the side of the combustion net 141 away from the gas holding chamber 136, so that the gas can burn on the side of the combustion net 141 away from the gas holding chamber 136. The flame formed by the combustion heats the combustion net 141. The combustion net 141 can be heated to above 800°C. The heated combustion net 141 can form infrared heat radiation to heat external objects.

[0103] It should be noted that because flames propagate along the gas flow path, if the flames propagate to the gas chamber 136, they may burn within the chamber 136, causing flashback. This flashback phenomenon, where the flames propagate directly to the chamber 136, is called dynamic flashback. To prevent dynamic flashback, in the present embodiment, the equivalent diameter of the combustion mesh is ≤0.8 mm.

[0104] It should be noted that the combustion mesh can be a circular hole, or a diamond-shaped, hexagonal or other non-circular hole. When the combustion mesh is a non-circular hole, the combustion mesh can be equivalent to a circular hole with the same opening area. Therefore, the opening size of the combustion mesh can be limited by the equivalent diameter of the combustion mesh.

[0105] The calculation formula for the quenching diameter dm is:

[0106] Among them, p e is the Peclet number, which is a key parameter for determining combustion stability, and Pe=65; λ g is the thermal conductivity of the combustion mesh wall; S L is the burning rate; c p is the isobaric specific heat capacity; ρ g is the gas density.

[0107] Among them, the thermal conductivity coefficient λ of the combustion mesh wall is g Determined by the material of the combustion net, the burning speed S L Determined by the type of gas and its premix ratio with air; isobaric specific heat capacity c p Affected by temperature; gas density ρ g Affected by the equivalence ratio, refer to Figure 8, which is a schematic diagram of the calculation results of the quenching diameter at different temperatures and equivalence ratios. The calculation selects dm≤0.8mm, that is, the equivalent diameter of the above-mentioned combustion mesh is ≤0.8mm.

[0108] In the embodiment of the present application, by limiting the equivalent diameter of the combustion mesh, the risk of the flame passing through the combustion mesh can be effectively avoided. This is because when the flame propagation path needs to pass through a small hole or channel, the flame will be quenched, that is, the combustion mesh with a smaller equivalent diameter can prevent the flame from propagating to the gas accommodating chamber 136. In other words, the flame cannot pass through the combustion mesh and can only burn on the side of the combustion mesh 141 away from the gas accommodating chamber 136. Referring to Figures 7 and 9, in the embodiment of the present application, the equivalent diameter of the combustion mesh is ≤0.8mm, and the flame cannot pass through the combustion mesh, thereby avoiding the situation where the flame propagates to the gas accommodating chamber 136. In addition, when the flow velocity of the gas is less than or equal to the propagation rate of the flame, the flame can be stably burned at the orifice of the combustion mesh away from the gas accommodating chamber 136, effectively improving the reliability of the infrared burner 130.

[0109] 6 , 13 and 14 , in an embodiment of the present application, the infrared burner 130 further includes an anti-backfire component 142 . The anti-backfire component 142 is arranged side by side with the combustion net 141 in the thickness direction of the combustion net 141 . The anti-backfire component 142 is constructed to have heat insulation properties and is located between the combustion net 141 and the main body 132 .

[0110] Because the burning flame will heat the combustion net 141, the heat of the combustion net 141 can be transmitted toward the main body 132, causing the temperature of the main body 132 to gradually rise. If the temperature in the gas accommodating chamber 136 rises to the auto-ignition point of the gas, the gas in the gas accommodating chamber 136 will be ignited, causing a backfire phenomenon, which is called static backfire.

[0111] In the embodiment of the present application, an anti-backfire component 142 is provided between the combustion net 141 and the main body 132, and the anti-backfire component 142 has heat insulation properties, so that the anti-backfire component 142 can block the heat transferred from the combustion net 141 toward the main body 132, thereby reducing the temperature in the gas containing cavity 136 and effectively reducing the risk of static backfire.

[0112] In the above embodiment, the anti-backfire component 142 is constructed to have heat insulation properties and is located between the combustion net 141 and the main body 132. In other embodiments, the anti-backfire component 142 can also be configured to exchange heat with the combustion net 141 to dissipate heat from the combustion net 141. Specifically, the anti-backfire component 142 is arranged on the side of the combustion net 141 away from the gas accommodating chamber 136. When the infrared burner 130 is working, the flame heats the combustion net 141, and the anti-backfire component 142 exchanges heat with the combustion net 141 to improve the heat dissipation efficiency of the combustion net 141, thereby reducing the temperature of the combustion net 141 facing the gas accommodating chamber 136, thereby reducing the risk of static backfire.

[0113] In some other embodiments, two anti-backfire parts 142 can be provided, wherein one anti-backfire part 142 is constructed to have heat insulation properties and is located between the combustion net 141 and the main body 132, and the other anti-backfire part 142 is provided on the side of the combustion net 141 away from the gas accommodating chamber 136 for dissipating heat from the combustion net 141.

[0114] In the embodiment of the present application, there are two anti-backfire parts 142, one of which is used to block the transfer of heat toward the gas accommodating chamber 136, and the other is used to improve the heat dissipation efficiency of the combustion network 141, effectively reducing the temperature in the gas accommodating chamber 136 and effectively reducing the risk of static backfire.

[0115] According to the infrared burner 130 of the embodiment of the present application, the equivalent diameter of the combustion mesh is ≤0.8 mm. By limiting the equivalent diameter of the combustion mesh, the flame can be prevented from propagating through the combustion mesh to the gas containing chamber 136, thereby avoiding the occurrence of dynamic backfire. The flame cannot pass through the combustion mesh and can only burn on the side of the combustion mesh 141 away from the gas containing chamber 136, thereby improving the reliability of the use of the infrared burner 130; the infrared burner 130 is provided with an anti-backfire component 142, which is used to block heat from being transferred toward the gas containing chamber 136 and / or to improve the heat dissipation efficiency of the combustion mesh 141, thereby effectively reducing the risk of static backfire and further improving the reliability of the use of the infrared burner 130.

[0116] In some further embodiments, 0.05 mm ≤ the equivalent diameter of the combustion mesh ≤ 0.8 mm.

[0117] If the equivalent diameter of the combustion mesh is greater than 0.8 mm, the flame may pass through the combustion mesh during propagation, resulting in dynamic flashback. If the equivalent diameter of the combustion mesh is less than 0.05 mm, the resistance of the gas passing through the combustion mesh 141 will increase, affecting the combustion efficiency and thus the heating effect of the infrared burner 130. In the embodiment of the present application, the equivalent diameter of the combustion mesh is limited to 0.05 mm to 0.8 mm, so that the gas can pass through the combustion mesh 141 smoothly and burn on the side of the combustion mesh 141 away from the gas receiving chamber 136. This ensures the heating effect of the infrared burner 130 while avoiding the possibility of the flame passing through the combustion mesh and the risk of dynamic flashback.

[0118] In some specific embodiments, the equivalent diameter of the combustion mesh can be any one of 0.05 mm, 0.25 mm, 0.35 mm, 0.55 mm, 0.65 mm, 0.75 mm, 0.8 mm, or a range of values ​​between any two of them.

[0119] In some preferred embodiments, the equivalent diameter of the combustion mesh is 0.05 mm ≤ 0.3 mm.

[0120] As shown in Figure 10 , in embodiments where the equivalent diameter of the combustion mesh is ≤0.8 mm, the flame can burn stably on the combustion mesh without flashback. Furthermore, Figure 10 shows that in embodiments where the equivalent diameter of the combustion mesh is ≤0.3 mm, the flame can not only burn stably on the combustion mesh, but the entire combustion mesh is heated more evenly, and the heat radiation generated by the combustion mesh is also more uniform, effectively improving the heating effect of the burner.

[0121] In some embodiments, the surface porosity of the combustion mesh 141 is ≥40%.

[0122] It should be noted that the surface porosity of the combustion mesh 141 refers to the area ratio of the combustion mesh per unit area. Because the multiple combustion meshes on the combustion mesh 141 are unevenly distributed, this application limits the surface porosity of the combustion mesh 141 to make the gas more evenly distributed on the combustion mesh 141, reduce the temperature difference between different positions of the combustion mesh 141, and improve the heating effect of the infrared burner 130.

[0123] In some further embodiments, the combustion mesh 141 has a thickness ranging from 0.1 mm to 0.5 mm.

[0124] If the thickness of the combustion net 141 is less than 0.1 mm, the strength of the combustion net 141 will be affected, and the combustion net 141 will be more easily deformed. If the thickness of the combustion net 141 is greater than 0.5 mm, the overall thickness of the infrared burner 130 will be increased, which is not conducive to the miniaturization of the infrared burner 130 and will also increase the cost of the infrared burner 130. In the embodiment of the present application, the thickness of the combustion net 141 ranges from 0.1 mm to 0.5 mm, which ensures the strength of the combustion net 141 without making the overall thickness of the infrared burner 130 too thick, and also reduces the cost of the infrared burner 130.

[0125] In some specific embodiments, the thickness of the combustion net 141 is any one of 0.1 mm, 0.25 mm, 0.38 mm, and 0.5 mm, or a range of any two thereof.

[0126] In some embodiments, the anti-backfire member 142 has heat insulation properties and is located between the combustion mesh 141 and the main body 132 , and the anti-backfire member 142 is in point contact with the combustion mesh 141 .

[0127] In the embodiment of the present application, the anti-backfire component 142 is in point contact with the combustion net 141, and the contact thermal resistance is large. The efficiency of transferring heat from the combustion net 141 to the anti-backfire component 142 is reduced, and the heat on the combustion net 141 is difficult to continue to be transferred to the gas in the gas containing chamber 136 through the anti-backfire component 142, thereby preventing the temperature in the gas containing chamber 136 from rising to the natural point temperature of the gas.

[0128] It should be noted that the point contact between the anti-backfire component 142 and the combustion net 141 means that the part where the anti-backfire component 142 contacts the combustion net 141 is in point contact. There can be multiple contact points between the anti-backfire component 142 and the combustion net 141, which ensures the reliability of the connection between the anti-backfire component 142 and the combustion net 141.

[0129] In some specific embodiments, the anti-backfire member 142 is a metal member, formed into a mesh structure, located between the combustion mesh 141 and the main body 132 , and in point contact with the combustion mesh 141 .

[0130] In the embodiment of the present application, the anti-backfire member 142 has a simple structure and is easy to install, which reduces the cost of the infrared burner 130. In addition, the anti-backfire member 142 is constructed as a metal mesh structure, so that the anti-backfire member 142 can also support the combustion net 141. It is understandable that if the combustion net 141 is deformed due to excessive temperature, it will cause the flame on the surface of the combustion net 141 to be unstable, thereby affecting the heating effect. In order to prevent the combustion net 141 from deforming, the embodiment of the present application can support the combustion net 141 through the anti-backfire member 142 to prevent the combustion net 141 from deforming. The anti-backfire member 142 can be made of a material with high strength and high temperature resistance to improve the stability of the combustion net 141.

[0131] In some further embodiments, the anti-backfire component 142 is located between the combustion net 141 and the main body 132, the anti-backfire component 142 is a metal component, the anti-backfire component 142 is formed into a mesh structure, the anti-backfire component 142 includes multiple anti-backfire mesh holes, and the anti-backfire component 142 is constructed to meet the following conditions: 0.8 mm < equivalent diameter of each anti-backfire mesh hole ≤ 3 mm.

[0132] When the infrared burner 130 is working, the gas in the gas holding chamber 136 flows toward the combustion net 141, and passes through the anti-backfire mesh and the combustion mesh in turn to the side of the combustion net 141 away from the gas holding chamber 136, and burns on the side of the combustion net 141 away from the gas holding chamber 136. The flame formed by the combustion heats the combustion net 141, and the heated combustion net 141 can form infrared heat radiation to heat external objects.

[0133] If the equivalent diameter of the anti-backfire mesh is less than 0.8 mm, the resistance to gas passing through the anti-backfire member 142 will increase, affecting combustion efficiency. If the equivalent diameter of the anti-backfire mesh is greater than 3 mm, the number of contact points between the anti-backfire member 142 and the combustion net 141 will be reduced, affecting the supporting effect of the anti-backfire member 142 on the combustion net 141. In the embodiment of the present application, 0.8 mm < the equivalent diameter of each anti-backfire mesh ≤ 3 mm reduces the resistance to gas passing through the anti-backfire member 142, allowing the combustible gas to flow smoothly to the combustion net 141, allowing the infrared burner 130 to operate normally, while also ensuring the supporting effect of the anti-backfire member 142 on the combustion net 141 and reducing the risk of deformation of the combustion net 141.

[0134] It should be noted that the anti-tempering mesh can be a circular hole, or a diamond-shaped, hexagonal or other non-circular hole. When the anti-tempering mesh is a non-circular hole, the anti-tempering mesh can be equivalent to a circular hole with the same opening area. Therefore, the opening size of the anti-tempering mesh can be limited by the equivalent diameter of the anti-tempering mesh.

[0135] In some specific embodiments, the equivalent diameter of the flashback prevention mesh is any one of 0.9 mm, 1.2 mm, 1.6 mm, 1.9 mm, 2.2 mm, 2.7 mm, and 3 mm, or a range of values ​​between any two of them.

[0136] In some embodiments, the anti-backfire member 142 includes a plurality of anti-backfire meshes, and the ratio of the equivalent diameter of the anti-backfire meshes to the equivalent diameter of the combustion meshes ranges from 1 to 60.

[0137] If the ratio of the equivalent diameter of the anti-backfire mesh to the equivalent diameter of the combustion mesh is less than 1, it means that the opening area of ​​the anti-backfire mesh is smaller than the opening area of ​​the combustion mesh, which increases the resistance of the gas passing through the anti-backfire part 142 and affects the combustion efficiency; if the ratio of the equivalent diameter of the anti-backfire mesh to the equivalent diameter of the combustion mesh is greater than 60, the opening area of ​​the anti-backfire mesh is too large, which reduces the number of contact points between the anti-backfire part 142 and the combustion net 141, affecting the support effect of the anti-backfire part 142 on the combustion net 141. In the embodiment of the present application, the ratio of the equivalent diameter of the anti-backfire mesh to the equivalent diameter of the combustion mesh is in the range of 1 to 60, which reduces the resistance of the gas passing through the anti-backfire part 142, allows the combustible gas to flow smoothly to the combustion net 141, and enables the infrared burner 130 to operate normally. At the same time, it also ensures the support effect of the anti-backfire part 142 on the combustion net 141 and reduces the risk of deformation of the combustion net 141.

[0138] In some specific embodiments, the ratio of the equivalent diameter of the anti-flashback mesh to the equivalent diameter of the combustion mesh is any one of 1.1, 2, 8, 19, 22, 47, and 60, or a range of values ​​therebetween.

[0139] In some embodiments, the surface porosity of the tempering prevention member 142 is ≥40%.

[0140] It should be noted that the surface porosity of the anti-backfire member 142 refers to the area ratio of the anti-backfire mesh per unit area. Because the multiple anti-backfire meshes on the anti-backfire member 142 are unevenly distributed, this application limits the surface porosity of the anti-backfire member 142 to prevent the anti-backfire member 142 from affecting the uniformity of gas distribution, thereby making the gas more evenly distributed on the combustion mesh 141, reducing the temperature difference between different positions on the combustion mesh 141, and improving the heating effect of the infrared burner 130.

[0141] In some embodiments, the tempering prevention member 142 has a thickness of 0.15 mm to 2 mm.

[0142] If the thickness of the anti-tempering member 142 is less than 0.15 mm, the strength of the anti-tempering member 142 will be affected, and the anti-tempering member 142 will be easily deformed. If the thickness of the anti-tempering member 142 is greater than 2 mm, the thickness of the infrared burner 130 will be increased, which is not conducive to the miniaturization of the infrared burner 130 and will also increase the cost of the infrared burner 130. In the embodiment of the present application, the thickness of the anti-tempering member 142 is 0.15 mm to 2 mm, which ensures the strength of the anti-tempering member 142 without making the infrared burner 130 too thick, thereby reducing the cost of the infrared burner 130.

[0143] In some specific embodiments, the thickness of the tempering prevention member 142 is any one of 0.15 mm, 0.35 mm, 0.8 mm, 1.1 mm, 1.5 mm, and 2 mm, or a range of any two thereof.

[0144] In some embodiments, the infrared burner 130 includes: a main body 132, including a gas accommodating chamber 136, the gas accommodating chamber 136 is used to accommodate combustible gas; a combustion net 141, the opening of the gas accommodating chamber 136 is facing the combustion net 141, so that the combustible gas can burn on the surface of the combustion net 141, and the combustion net 141 is set to face the outside to radiate heat energy to the outside; an anti-backfire component 142, installed between the combustion net 141 and the main body 132, the anti-backfire component 142 is used to block heat from being transferred toward the gas accommodating chamber 136, and the anti-backfire component 142 is also used to support the combustion net 141, the anti-backfire component 142 is a mesh structure and the mesh size of the anti-backfire component 142 is larger than the mesh size of the combustion net 141.

[0145] The infrared burner 130 proposed in this application can be used in a cooking appliance. When in operation, the infrared burner 130 can heat the interior of the cooking appliance to heat and cook food. The infrared burner 130 includes a main body 132, a combustion net 141, and a flashback preventer 142. The main body 132 includes a gas receiving chamber 136 for receiving combustible gas, the combustion net 141 for burning the combustible gas, and the flashback preventer 142 for supporting the combustion net 141.

[0146] Specifically, gas storage chamber 136 can store a certain amount of combustible gas. The opening of gas storage chamber 136 faces combustion net 141, allowing the combustible gas to flow toward combustion net 141. The combustible gas burns on combustion net 141 at a temperature exceeding 800°C. The flame heats combustion net 141, generating infrared heat radiation that allows combustion net 141 to radiate heat energy.

[0147] Furthermore, the present application also provides an anti-backfire member 142 in the infrared burner 130, and the anti-backfire member 142 is used to support the combustion net 141. It is understandable that if the combustion net 141 is deformed, the flame on the surface of the combustion net 141 will become unstable, thereby affecting the heating effect. In order to prevent the combustion net 141 from deforming, the present application provides an anti-backfire member 142 in the infrared burner 130, and the anti-backfire member 142 can support the combustion net 141 to prevent the combustion net 141 from deforming. The anti-backfire member 142 can be made of a high-strength and high-temperature resistant material to improve the stability of the combustion net 141.

[0148] Furthermore, since the backfire prevention member 142 is located between the main body 132 and the combustion net 141, the combustible gas needs to pass through the backfire prevention member 142 to flow toward the combustion net 141. To allow the combustible gas to flow smoothly through the backfire prevention member 142, the present application sets the mesh size of the backfire prevention member 142 to be larger than the mesh size of the combustion net 141. In this way, the resistance of the backfire prevention member 142 to the combustible gas can be reduced, allowing the combustible gas to flow smoothly toward the combustion net 141, and allowing the infrared burner 130 to operate normally.

[0149] By providing the infrared burner 130 with a flashback prevention member 142 for supporting the combustion net 141, deformation of the combustion net 141 can be prevented, the stability of the combustion net 141 can be improved, and the flame can be stably burned on the combustion net 141. By setting the mesh size of the flashback prevention member 142 larger than the mesh size of the combustion net 141, the resistance of the flashback prevention member 142 to the combustible gas can be reduced, allowing the combustible gas to flow smoothly to the combustion net 141, so that the infrared burner 130 can operate normally.

[0150] In some embodiments, optionally, as shown in FIG. 4 , FIG. 5 and FIG. 6 , the mesh number of the anti-backfire member 142 is smaller than the mesh number of the combustion net 141 .

[0151] In this embodiment, the combustion mesh 141 and the flashback prevention member 142 are further defined. Specifically, the mesh size of the flashback prevention member 142 is smaller than that of the combustion mesh 141. By setting the mesh size of the flashback prevention member 142 smaller than that of the combustion mesh 141, the mesh size of the flashback prevention member 142 can be increased, thereby reducing the resistance of the flashback prevention member 142 to the combustible gas, allowing the combustible gas to flow smoothly to the combustion mesh 141, and enabling the infrared burner 130 to operate normally.

[0152] In some embodiments, optionally, the mesh number of the combustion net 141 ranges from 40 mesh to 200 mesh, and the mesh number of the tempering prevention member 142 ranges from 5 mesh to 40 mesh.

[0153] In this embodiment, the mesh size of the combustion net 141 and the mesh size range of the flashback preventer 142 are limited. Specifically, the mesh size of the combustion net 141 ranges from 40 mesh to 200 mesh. It is understood that the combustion net 141 is used to burn combustible gas to generate a flame, which requires the flame to burn stably and distributed on the combustion net 141. Therefore, the mesh size of the combustion net 141 cannot be too small, otherwise it will cause an uneven flame. Therefore, the mesh size of the combustion net 141 is set within the range of 40 mesh to 200 mesh in this application to ensure that the flame on the combustion net 141 remains stable.

[0154] Furthermore, the mesh size of the anti-backfire member 142 ranges from 5 mesh to 40 mesh. Since the anti-backfire member 142 is disposed between the combustion net 141 and the gas accommodating chamber 136, the combustible gas needs to pass through the anti-backfire member 142 before reaching the combustion net 141. Therefore, the anti-backfire member 142 needs to be configured as a mesh structure with a large mesh size and a small mesh size. For this reason, the present application sets the mesh size of the anti-backfire member 142 within the range of 5 mesh to 40 mesh to ensure that the combustible gas can smoothly pass through the anti-backfire member 142.

[0155] In some embodiments, optionally, the combustion mesh 141 has a thickness ranging from 0.1 mm to 0.5 mm.

[0156] In this embodiment, the thickness of the combustion net 141 is limited, specifically, the thickness range of the combustion net 141 is 0.1mm to 0.5mm. This ensures that the strength of the combustion net 141 meets the requirements of use while avoiding the problem of increased product volume due to excessive thickness of the combustion net 141.

[0157] In some embodiments, the tempering preventing member 142 may have a thickness ranging from 0.15 mm to 2 mm.

[0158] In this embodiment, the thickness of the anti-backfire member 142 is limited. Specifically, the thickness of the anti-backfire member 142 ranges from 0.15 mm to 2 mm. As can be understood, the anti-backfire member 142 supports the combustion net 141. Therefore, if the strength of the anti-backfire member 142 is too low, the support effect of the anti-backfire member 142 will be poor, which may cause deformation of the combustion net 141. Therefore, this application limits the thickness of the anti-backfire member 142 to a range of 0.15 mm to 2 mm to ensure that the strength of the anti-backfire member 142 meets the requirements of use. Furthermore, by ensuring that the anti-backfire member 142 has a certain thickness, it can also provide a certain thermal insulation effect.

[0159] In some embodiments, optionally, the combustion mesh 141 and the backfire prevention member 142 are made of metal.

[0160] In this embodiment, the combustion mesh 141 and the anti-backfire member 142 are further defined. Specifically, the combustion mesh 141 and the anti-backfire member 142 are made of metal. Using metal improves the strength of the combustion mesh 141 and the anti-backfire member 142. Compared to a ceramic combustion plate, the combustion mesh 141 and the anti-backfire member 142 in the infrared burner 130 proposed in this application are stronger. Furthermore, the metal mesh structure is easy to process and simplifies assembly, thereby reducing production complexity.

[0161] In some embodiments, optionally, there is a distance between the flashback prevention member 142 and the combustion mesh 141 .

[0162] In this embodiment, the anti-backfire member 142 and the combustion net 141 are further defined. Specifically, a gap is provided between the anti-backfire member 142 and the combustion net 141. This is equivalent to providing an air insulation layer between the anti-backfire member 142 and the combustion net 141. Compared to a structure where the anti-backfire member 142 and the combustion net 141 are placed in close proximity, the present application reduces heat transfer between the anti-backfire member 142 and the combustion net 141 by providing a gap between the anti-backfire member 142 and the combustion net 141, thereby lowering the temperature of the anti-backfire member 142, reducing the possibility of backfire, and improving the safety of the infrared burner 130.

[0163] In some embodiments, the backfire prevention member 142 is a heat insulating material member filled between the combustion mesh 141 and the main body 132 .

[0164] In the above technical solution, the excellent thermal insulation properties of the thermal insulation material can effectively prevent heat from being transferred toward the gas accommodating chamber 136, further reducing the risk of static tempering and further improving the reliability of the infrared burner 130.

[0165] In some specific embodiments, the tempering prevention member 142 may be thermal insulation wool or quartz wool.

[0166] The thermal insulation cotton and quartz wool are provided with gaps for gas to penetrate, which will not affect the flow of gas, ensuring that the gas can flow smoothly to the combustion net 141 for combustion. In addition, the thermal insulation cotton and quartz wool have excellent fireproof and heat-insulating properties, which can effectively block the heat from being transferred toward the gas accommodating cavity 136, ensuring that the reliability of the use of the infrared burner 130 is improved.

[0167] In some embodiments, the anti-backfire component 142 is arranged on the side of the combustion net 141 away from the gas containing chamber 136. The anti-backfire component 142 exchanges heat with the combustion net 141 to dissipate heat from the combustion net 141. The anti-backfire component 142 is a metal component and is formed into a mesh structure.

[0168] In the embodiment of the present application, the anti-backfire component 142 is a metal component, which is beneficial to improving the heat dissipation efficiency of the anti-backfire component 142, thereby improving the heat dissipation efficiency of the combustion net 141 and reducing the risk of static backfire. In addition, the anti-backfire component 142 can also support the combustion net 141 to avoid deformation of the combustion net 141.

[0169] 11 , in some embodiments, a flashback preventer 142 is disposed on a side of the combustion net 141 facing away from the gas receiving chamber 136 . The flashback preventer 142 exchanges heat with the combustion net 141 to dissipate heat from the combustion net 141 . The flashback preventer 142 is a wavy net. A wavy net is a solid net commonly used in the art that is formed into a wavy shape and is made of a plastic material, such as a metal material.

[0170] Through the above technical solution, the wavy anti-backfire member 142 increases the contact area between the anti-backfire member 142 and the air, increases the heat dissipation efficiency of the anti-backfire member 142, thereby increasing the heat dissipation effect of the combustion net 141, and further reduces the risk of static backfire.

[0171] 12 , in some embodiments, the flashback prevention member 142 is configured to have heat insulation properties and is located between the combustion net 141 and the main body 132 , and the combustion net 141 is a wave net.

[0172] In the embodiment of the present application, an anti-backfire component 142 is provided between the combustion net 141 and the main body 132, and the anti-backfire component 142 has heat insulation properties, so that the anti-backfire component 142 can block the heat transferred from the combustion net 141 toward the main body 132, thereby reducing the temperature in the gas accommodating chamber 136 and effectively reducing the risk of static backfire; the wavy combustion net 141 increases the contact area between the combustion net 141 and the air, increases the heat dissipation effect of the combustion net 141, and further reduces the risk of static backfire.

[0173] In some embodiments, a plurality of anti-backfire members 142 are provided, and fire-proof members are distributed on both sides of the combustion net 141 .

[0174] In the embodiment of the present application, the anti-backfire component 142 located between the combustion net 141 and the main body 132 is used to block the transfer of heat toward the gas accommodating chamber 136. The anti-backfire component 142 located on the side of the combustion net 141 away from the gas accommodating chamber 136 is used to improve the heat dissipation efficiency of the combustion net 141, effectively reducing the temperature in the gas accommodating chamber 136, and effectively reducing the risk of static backfire.

[0175] In other embodiments, multiple anti-backfire parts 142 are provided, and the multiple anti-backfire parts 142 are all arranged between the combustion net 141 and the main body 132. Through the heat insulation of the multiple anti-backfire parts 142, the temperature in the gas accommodating chamber 136 is further reduced, effectively reducing the risk of static backfire.

[0176] In some other embodiments, multiple anti-backfire parts 142 are provided, and the multiple anti-backfire parts 142 are all provided on the side of the combustion net 141 away from the gas accommodating chamber 136. The multiple anti-backfire parts 142 increase the heat dissipation area, improve the heat dissipation efficiency of the combustion net 141, and effectively reduce the risk of static backfire.

[0177] In some specific embodiments, the infrared burner 130 includes a combustion net 141 and two flashback prevention members 142. One of the two flashback prevention members 142 is located on the side of the combustion net 141 facing the gas receiving chamber 111, and the other of the two flashback prevention members 142 is located on the side of the combustion net 141 facing away from the gas receiving chamber 111. In the embodiment of the present application, the infrared burner 130 has a simple structure and effectively reduces the risk of flashback.

[0178] In other specific embodiments, the infrared burner 130 includes two combustion nets 141 and a flashback preventer 142. The two combustion nets 141 are arranged in parallel, and the flashback preventer 142 is located between the two combustion nets 141. Of the two combustion nets 141, the one farther from the gas receiving chamber 111 is used for the combustion flame, while the one closer to the gas receiving chamber 111 has smaller mesh size, further reducing the risk of flashback, thereby further improving the safety of the infrared burner 130.

[0179] In other embodiments, the infrared burner 130 includes two combustion nets 141 and two flashback prevention members 142. In a direction away from the gas receiving chamber 111, the two combustion nets 141 and the two flashback prevention members 142 are stacked in the order of combustion net 141, flashback prevention member 142, combustion net 141, flashback prevention member 142. In this embodiment, the flame combustion stability is improved, the risk of flashback is reduced, and the overall strength of the infrared burner 130 is increased, thereby improving the reliability of the infrared burner 130.

[0180] It should be understood that the combustion net 141 and the anti-backfire parts 142 can also be other numbers, and this application does not limit this. It should be understood that the combustion net 141 and the anti-backfire parts 142 can also be other arrangements, and this application does not limit this.

[0181] 6 , 13 and 14 , in some embodiments, the main body 132 includes: a shell 133 and a guide plate 134 , the guide plate 134 is connected to the shell 133 , the shell 133 and the guide plate 134 together form a gas accommodating chamber 136 , the guide plate 134 has a plurality of guide holes 135 , the guide holes 135 are used to discharge the combustible gas in the gas accommodating chamber 136 to the combustion network 141 , that is, the plurality of guide holes 135 are the above-mentioned gas outlets.

[0182] In this embodiment, the structure of the main body 132 is defined. The main body 132 includes a shell 133 and a guide plate 134. The guide plate 134 is connected to the shell 133 and together they form a gas chamber 136, which can accommodate a certain amount of combustible gas. Furthermore, the guide plate 134 has a plurality of guide holes 135, through which the combustible gas in the gas chamber 136 can flow toward the combustion net 141, allowing the combustible gas to burn on the combustion net 141, raising the temperature of the combustion net 141 and enabling the combustion net 141 to radiate heat energy. The guide holes 135 can guide the combustible gas. Since the combustible gas flows to the combustion net 141 through the guide holes 135, the positions of multiple guide holes 135 can be rationally designed to make the combustible gas flow to the combustion net 141 more evenly, thereby avoiding uneven flame distribution at various positions on the combustion net 141 and keeping the temperature at various positions of the combustion net 141 uniform.

[0183] In some embodiments, the plurality of guide holes 135 are evenly distributed on the guide plate 134 .

[0184] In this embodiment, the locations of the plurality of guide holes 135 are limited. Specifically, the plurality of guide holes 135 are evenly distributed on the guide plate 134. Since the combustible gas flows toward the combustion net 141 through the guide holes 135, by evenly distributing the plurality of guide holes 135 on the guide plate 134, the combustible gas can flow more evenly toward the combustion net 141, thereby avoiding uneven flame distribution at various locations on the combustion net 141 and maintaining a uniform temperature at various locations on the combustion net 141.

[0185] In some embodiments, the infrared burner 130 further includes an ejector tube 138 connected to the shell 133 and communicating with the gas receiving chamber 136 . The ejector tube 138 is used to input combustible gas into the gas receiving chamber 136 .

[0186] In this embodiment, the structure of infrared burner 130 is further defined. Infrared burner 130 also includes an ejector tube 138 for injecting combustible gas into gas receiving chamber 136. Specifically, ejector tube 138 is connected to housing 133 and communicates with gas receiving chamber 136. Combustible gas flows into gas receiving chamber 136 through ejector tube 138, enabling normal operation of infrared burner 130.

[0187] In some embodiments, the ejector tube 138 extends into the gas receiving chamber 136 , and a plurality of exhaust holes 1391 are provided on the surface of the ejector tube 138 .

[0188] In this embodiment, the structure of the ejector tube 138 is further defined. Specifically, the ejector tube 138 extends into the gas receiving chamber 136, and the portion of the ejector tube 138 located within the gas receiving chamber 136 is provided with a plurality of exhaust holes 1391. By extending the ejector tube 138 into the gas receiving chamber 136 and providing a plurality of exhaust holes 1391 on the surface of the ejector tube 138 for discharging combustible gas, combustible gas can be discharged from the central area of ​​the gas receiving chamber 136 into the gas receiving chamber 136, thereby achieving a more balanced combustible gas concentration throughout the gas receiving chamber 136. This allows the combustible gas to flow more evenly to the combustion network 141, thereby improving the uniformity of the flame on the combustion network 141.

[0189] It should be understood that the multiple exhaust holes 1391 can be distributed on the peripheral wall of the ejector tube 138 or located on the end surface of the ejector tube 138, and this application is not limited to this.

[0190] In some specific embodiments, a first diverter plate 139 is provided at one end of the ejector tube 138 located in the gas containing chamber 136. The first diverter plate 139 closes the opening of the ejector tube 138. A plurality of exhaust holes 1391 are formed on the first diverter plate 139. The gas enters the gas containing chamber 136 after the initial diversion through the plurality of exhaust holes 1391. The gas in the gas containing chamber 136 is diverted for the second time through the plurality of guide holes 135 on the guide plate 134 and flows to the combustion network 141, thereby effectively improving the uniformity of the flame distribution at the combustion network 141.

[0191] In one possible embodiment, the infrared burner 130 proposed in this application is primarily composed of a combustion surface (i.e., a combustion net 141 and a flashback prevention member 142), an airflow distribution plate (i.e., a guide plate 134), a cavity (i.e., a gas receiving chamber 136), and an ejector tube (i.e., an ejector tube 138). The combustion surface primarily comprises a flame combustion net 141 (i.e., a combustion net 141) and a heat-insulating flashback prevention member 142 (i.e., a flashback prevention member 142).

[0192] A mixture of gas and air (i.e., combustible gas) enters through the ejector tube and, after thorough mixing within the chamber, is evenly distributed through the airflow distribution plate onto the combustion surface. The flame burns on the flame combustion net 141 on the combustion surface. Thermal insulation and backfire prevention members 142 support the flame combustion net 141 and provide a partial heat barrier. The flame reaches a temperature above 800°C, heating the flame combustion net 141 and generating heat radiation.

[0193] The flame combustion net 141 is located outside the heat-insulating anti-backfire component 142 , and the fuel gas flow (i.e., combustible gas) burns on the flame combustion net 141 after passing through the heat-insulating anti-backfire component 142 .

[0194] The flame combustion net 141 is a mesh structure made of high-temperature corrosion-resistant metal, with a mesh size between 40 and 200 meshes, and a thickness between 0.1 mm and 0.2 mm. The thermal insulation anti-temperback member 142 is also a mesh structure made of high-temperature corrosion-resistant metal, with a mesh size between 5 and 40 meshes, and a thickness between 0.2 mm and 0.4 mm. The mesh size of the thermal insulation support is larger than the mesh size of the flame combustion net 141. There is a certain distance between the thermal insulation anti-temperback member 142 and the flame combustion net 141, which can be 0.1 mm to 1 mm.

[0195] The present application also proposes a cooking appliance, comprising the infrared burner 130 proposed in the above technical solution.

[0196] The cooking appliance provided in the present application includes the infrared burner 130 proposed in the above technical solution, and therefore has all the beneficial effects of the infrared burner 130 in the above technical solution.

[0197] Cooking appliances include a pizza oven.

[0198] In this application, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integrally connected; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0199] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0200] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cooking appliance, wherein: include: Base; A baking part, installed on the base, the baking part is used to place food, and the baking part can rotate relative to the base; An infrared burner is installed on the base, and the infrared burner comprises a radiation part, which can burn combustible gas and radiate heat energy, and the radiation part faces the baking part.

2. The cooking appliance according to claim 1, wherein: The infrared burner also includes: A transmission part, installed on the base, and used for transmitting the combustible gas; The main body is connected to one end of the transmission part away from the base, and the transmission part can transmit the combustible gas into the main body. The radiation part is connected to the main body, and the main body can transmit the combustible gas to the radiation part.

3. The cooking appliance according to claim 2, wherein: The subject includes: A housing connected to the transmission part; A guide plate is connected to the shell, the guide plate and the shell together form a gas containing chamber, the gas containing chamber is communicated with the transmission part, the radiation part is located on the side of the guide plate away from the gas containing chamber, and the guide plate has a plurality of guide holes.

4. The cooking appliance according to claim 3, wherein: The radiation part comprises: A combustion net, installed on the shell, and used for burning the combustible gas; A flashback barrier net, located between the combustion net and the guide plate, and used to prevent the flame from entering the gas containing cavity; A support net is located between the tempering barrier net and the combustion net, and is used to support the combustion net.

5. The cooking appliance according to claim 4, wherein: The mesh number of the combustion net ranges from 40 meshes to 200 meshes, the mesh number of the tempering barrier net ranges from 40 meshes to 200 meshes, and the mesh number of the support net ranges from 5 meshes to 40 meshes.

6. The cooking appliance according to claim 4, wherein: There is a distance between the support mesh and the combustion mesh, and there is a distance between the support mesh and the flashback barrier mesh.

7. The cooking appliance according to any one of claims 3 to 6, wherein: The transmission unit comprises: A gas suction piece, installed on the base, and used for sucking the combustible gas; An ejector pipe, both ends of which are respectively connected to the gas suction member and the gas containing chamber, and the ejector pipe is used to transfer the combustible gas into the gas containing chamber.

8. The cooking device according to any one of claims 1 to 7, wherein: The baking unit comprises: A baking tray, used for placing the ingredients; A rotating member is installed at the bottom of the baking tray, and the rotating member is used to drive the baking tray to rotate relative to the base.

9. The cooking appliance according to claim 8, wherein: Also includes: A driving motor is connected to the rotating member, and the driving motor is used to drive the rotating member to drive the baking tray to rotate.

10. The cooking appliance according to claim 9, wherein The rotating member comprises: A turntable, mounted on the baking tray; A support shaft, both ends of which are connected to the driving motor and the turntable respectively, and the support shaft is used to support the turntable and the baking tray so that there is a distance between the turntable and the baking tray and the base.

11. The cooking appliance according to any one of claims 1 to 7, wherein: Also includes: A control component is arranged on the base, the control component is conductively connected to the infrared burner, and the control component is used to control the operation of the infrared burner.

12. The cooking appliance according to any one of claims 1 to 7, wherein: Also includes: An outer cover is detachably buckled on the base. When the outer cover is buckled on the base, the outer cover and the base together form a cooking cavity.

13. The cooking appliance according to any one of claims 1 to 7, wherein: Also includes: An ignition device is provided on the infrared burner, and the ignition device is used to ignite the combustible gas.

14. The cooking appliance according to any one of claims 1 to 7, wherein: The cooking appliance includes a pizza oven or a barbecue oven.

15. The cooking appliance according to any one of claims 1 to 14, wherein: The infrared burner comprises a main body, a gas containing cavity is arranged in the main body, and a gas outlet is arranged in the main body which is connected with the gas containing cavity; the radiation part comprises: A combustion net, wherein the combustion net is arranged on the main body and the opening of the gas outlet faces the combustion net, the combustion net is provided with a plurality of combustion mesh holes, and the combustion net is configured such that the equivalent diameter of the combustion mesh holes is ≤0.8 mm; The anti-flashback member is arranged side by side with the combustion net in the thickness direction of the combustion net, and the anti-flashback member satisfies at least one of the following conditions: The anti-flashback member is constructed to have heat insulation and is located between the combustion net and the main body; The anti-flashback member exchanges heat with the combustion net to dissipate heat from the combustion net.

16. The cooking appliance according to claim 15, wherein: The combustion mesh is constructed to satisfy: 0.05 mm ≤ the equivalent diameter of each combustion mesh hole ≤ 0.3 mm.

17. The cooking appliance according to claim 15 or 16, wherein: The anti-backfire component is a metal component and is formed into a mesh structure.

18. The cooking appliance according to claim 17, wherein: The anti-backfire component is a wave net.

19. The cooking appliance according to any one of claims 15 to 18, wherein: There are multiple anti-flashback members, and the anti-flashback members are distributed on both sides of the combustion net; or A plurality of flashback prevention members are located on the same side of the combustion net.

20. The cooking appliance according to claim 15 or 16, wherein: The anti-backfire component is a heat-insulating material component filled between the combustion net and the main body.

21. The cooking appliance according to claim 20, wherein: The anti-backfire component is thermal insulation wool or quartz wool.

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