A grill plate and grill

Abstract

The utility model belongs to the technical field of cooking utensil, specifically discloses a baking tray and oven. A kind of baking tray, the baking tray includes tray body, the tray body includes support plate part and the rim part that is surrounded in the periphery of support plate part upward, the plate-shaped main body of support plate part is upraised from edge to center. Oven includes furnace seat and above-mentioned baking tray, the baking tray is supported on the furnace seat. The utility model can improve reduce the probability of baking tray heat deformation, improve the use reliability of baking tray, prolong the service life of baking tray.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensil technology, and in particular to a baking pan and oven. Background Technology

[0002] An oven is a device used to bake food. It is officially used in home or outdoor baking scenarios. Ovens can be divided into electric ovens and gas ovens, depending on their heat source.

[0003] Conventional electric ovens use heating elements to heat food on a baking tray. To reduce the size of electric ovens, existing technology provides an electric grill pan, which includes a base and a baking tray mounted on the base. The bottom surface of the baking tray is coated with a thick-film circuit. A main control circuit is installed inside the base. A first electrical connector is installed on the baking tray, and a second electrical connector is installed on the base. The first and second electrical connectors are detachably electrically connected. The first electrical connector is connected to the thick-film circuit, and the second electrical connector is connected to the main controller circuit.

[0004] The baking pan provided by the existing technology has a thick film circuit directly set on the back side of the baking pan. This causes the baking pan to be directly heated during use. When the heating temperature is high, the baking pan is prone to deformation, which causes the position of the first electrical connector on the baking pan to shift. This leads to problems such as incomplete or no connection between the first and second electrical connectors, affecting the normal use of the oven. When the deformation of the baking pan is large, it is also easy to cause the baking pan to crack and be damaged, affecting the service life of the baking pan. Utility Model Content

[0005] One of the technical problems solved by this utility model is to provide a baking pan that can effectively solve the problem that existing baking pans are prone to deformation due to heat, resulting in improper assembly and a reduced service life.

[0006] The second technical problem solved by this utility model is to provide an oven that can effectively solve the problem of reduced reliability and affected service life of existing ovens due to deformation of the baking tray.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] A baking pan includes a pan body, the pan body including a support plate portion and an edge portion surrounding the periphery of the support plate portion, the plate-shaped main body of the support plate portion being raised upward from the edge to the center.

[0009] Compared with the prior art, the baking pan of this utility model has the following advantages: because the plate-shaped main body of the support plate bulges upward from the edge to the center, the pan body bends upward as a whole, thereby guiding the deformation of the pan body and avoiding the phenomenon of local bulging and concave parts of the pan body after heating, as well as the overall twisting of the pan body. This reduces the probability of poor contact between the electrical connectors on the baking pan and the electrical connectors on the oven base due to twisting, improves the assembly and use reliability of the baking pan, avoids the problem of damage due to large deformation of the baking pan, and extends the service life of the baking pan.

[0010] In one embodiment, the height of the center of the disk relative to the edge of the disk is H, where 1mm ≤ H ≤ 3mm.

[0011] In one embodiment, the support plate portion is stamped with raised ribs from bottom to top, and multiple raised ribs are provided. The portion of the support plate portion without raised ribs forms the plate-shaped main body.

[0012] In one embodiment, the upper surfaces of the plate-shaped body are all located on the same spherical surface.

[0013] In one embodiment, the cross-section of the rib is triangular, arc-shaped, or trapezoidal with a smaller top and a larger bottom;

[0014] And / or, the height of the rib protruding from the support plate is 1mm to 2mm;

[0015] And / or, the ribs are provided in multiple groups at intervals along the length direction of the disc body, each group including multiple ribs at intervals along the width direction of the disc body, the ribs extending along the length direction of the disc body.

[0016] In one embodiment, the baking pan includes a thick film circuit covering the back side of the support plate portion. The thick film circuit includes multiple heating groups. Each heating group includes multiple heating devices that are spaced apart and connected in series along the width direction of the pan body. The heating devices of the multiple heating groups are connected in series to form a serpentine circuit structure. A heating group is provided between two adjacent rib portions and between the outermost rib portion and the surrounding edge portion.

[0017] In one embodiment, the upper end of the surrounding edge is folded outward to form a flange, and the outer edge of the flange is folded into a folded edge, with the folded edge being disposed opposite to the lower side of the flange.

[0018] In one embodiment, the baking tray includes a heat insulation cover disposed on the back side of the tray body, the heat insulation cover being fully welded to the tray body;

[0019] And / or, the baking tray includes a heat insulation cover disposed on the back side of the tray body, the heat insulation cover includes a bottom plate portion and a side plate portion surrounding the periphery of the bottom plate portion, the upper end of the side plate portion is folded outward to have a connecting edge portion, the connecting edge portion is attached to and connected to the lower side of the support plate portion, and the thick film circuit is located between the bottom plate portion and the support plate portion;

[0020] And / or, the baking pan includes a heat insulation cover disposed on the back side of the pan body and a thick film circuit covered on the back side of the pan body, a first electrical connector is disposed on the back side of the pan body, the first electrical connector is located at the middle of the pan body along the length direction, and the first electrical connector extends out of the heat insulation cover.

[0021] The second technical problem mentioned above is solved by the following technical solution:

[0022] An oven includes a base and a baking tray as described above, the baking tray being supported on the base.

[0023] Compared with the prior art, the oven described in this utility model has the following advantages: by using the above-mentioned baking tray, the reliability of the oven can be improved and the service life of the oven can be extended.

[0024] In one embodiment, the bottom of the heat insulation cover is provided with a plurality of mounting bosses, and the upper end of the furnace base is recessed with a guide groove. The guide groove is provided in a one-to-one correspondence with the mounting bosses. The mounting bosses are inserted into the guide grooves, and a buffer is provided between the bottom of the mounting bosses and the bottom of the guide groove.

[0025] In one embodiment, the buffer is detachably mounted to the bottom of the guide groove. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the oven provided in Embodiment 1 of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the baking pan after removing the lid, as provided in Embodiment 1 of this utility model;

[0028] Figure 3 This is a schematic diagram of the disassembled structure of the oven provided in Embodiment 1 of this utility model;

[0029] Figure 4 This is a schematic diagram of the disassembled structure of the baking pan provided in Embodiment 1 of this utility model;

[0030] Figure 5 This is a cross-sectional view of the disc body provided in Embodiment 1 of this utility model;

[0031] Figure 6 for Figure 5A partial structural diagram of the middle structure;

[0032] Figure 7 This is a cross-sectional view of the baking pan provided in Embodiment 1 of this utility model.

[0033] Figure 8 for Figure 7 A magnified view of a section at point J;

[0034] Figure 9 This is a bottom view of the baking tray provided in Embodiment 1 of this utility model after the heat insulation cover has been removed;

[0035] Figure 10 for Figure 9 A magnified view of a section at point K;

[0036] Figure 11 A cross-sectional view of the baking pan provided in Embodiment 1 of this utility model;

[0037] Figure 12 for Figure 11 A magnified view of a section at point L;

[0038] Figure 13 A partial cross-sectional view of the baking tray at the first electrical connector provided in Embodiment 1 of this utility model;

[0039] Figure 14 A cross-sectional view of the oven provided in Embodiment 1 of this utility model (oven lid not shown);

[0040] Figure 15 for Figure 14 A magnified view of a section at point M;

[0041] Figure 16 This is a schematic diagram of the structure of the furnace base and the second electrical connection provided in Embodiment 1 of this utility model;

[0042] Figure 17 A cross-sectional view of the oven provided in Embodiment 8 of this utility model (oven lid not shown);

[0043] Figure 18 for Figure 17 A magnified view of a portion of point N in the middle.

[0044] Label Explanation:

[0045] 1. Disc body; 11. Support plate; 12. Surrounding edge; 13. Flanged edge; 14. Folded edge; 15. Rib;

[0046] 2. Thick-film circuit; 21. Heating circuit; 211. Heating device; 212. Conductive component;

[0047] 3. Heat insulation cover; 31. Base plate; 311. Mounting port; 32. Side plate; 33. Connecting edge; 34. Mounting boss;

[0048] 4. First electrical connector; 41. Upper base; 42. Upper connector; 43. Probe pin; 44. Temperature controller;

[0049] 5. Mounting components; 51. Fixing parts; 52. Annular seals; 53. Thermal insulation supports;

[0050] 6. Furnace base; 61. Guide recess; 611. Guide groove; 62. Lower oil drain channel; 63. Hinge seat;

[0051] 7. Second electrical connector; 71. Lower base; 711. Insertion positioning slot; 72. Lower connector; 73. Conductive contact;

[0052] 8. Upper oil drain channel;

[0053] 10. Thermocouple; 20. Furnace cover; 30. Buffer component; 301. Buffer pad; 302. Snap-fit ​​part; 303. Guide column part; 40. Oil collection box. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] Example 1

[0059] This embodiment provides an oven that can bake food while enhancing the food cooking experience and improving the overall performance of the oven.

[0060] like Figures 1 to 4 As shown, the oven includes a base 6, a baking tray, and a control module. The baking tray is detachably installed on the upper side of the base 6 and has a food-bearing surface for holding food. A thick-film circuit 2 is installed inside the baking tray, which can heat the food-bearing surface, thereby heating the food on the food-bearing surface. The control module is installed inside the base 6 and electrically connected to the thick-film circuit 2. The control module is used to control the operation of the oven.

[0061] A hinge seat 63 is provided on the rear side of the oven base 6. The oven also includes an oven lid 20, which is hinged to the oven base 6 via the hinge seat 63. This allows the oven lid 20 to rotate and snap onto the upper end of the oven base 6 to form a cooking cavity, facilitating steaming and other cooking operations. The oven lid 20 can also be flipped open relative to the oven base 6 to expose a baking pan for grilling and other cooking operations. The specific structure of the oven lid 20 and its connection structure with the oven can be designed with reference to existing technology, which is not the focus of this utility model and will not be described in detail here.

[0062] The baking pan includes a pan body 1, a thick-film circuit 2, and a heat insulation cover 3 covering the back of the pan body 1. The pan body 1 includes a support plate portion 11 and an edge portion 12 surrounding the periphery of the support plate portion 11. The upper side of the support plate portion 11 forms a food-bearing surface. The edge portion 12 prevents food from falling out of the support plate portion 11 and avoids oil from flowing out along the edge of the support plate portion 11 during cooking. The thick-film circuit 2 covers the back of the support plate portion 11 and is located between the support plate portion 11 and the pan body 1. That is, the heat insulation cover 3 and the pan body 1 form a mounting cavity, and the thick-film circuit 2 is located in the mounting cavity.

[0063] By installing a heat insulation cover 3 at the bottom of the pan body 1, and forming a sealed installation cavity with the pan body 1, the thick film circuit 2 is placed inside the installation cavity. This prevents water, oil, or other impurities from affecting the thick film circuit 2, thus protecting it and improving its reliability. It also facilitates the cleaning and maintenance of the baking pan. Furthermore, the heat insulation cover 3 provides better support for the pan body 1, enhancing the overall structural strength and rigidity of the baking pan and reducing the probability of heat deformation. It also reduces the conduction of heat generated by the thick film circuit 2 to the oven base 6, preventing heat accumulation at the oven base 6 and the risk of burns to users, thus improving the convenience of users in taking the baking pan out and putting it back in.

[0064] The baking tray also includes a first electrical connector 4, and a second electrical connector 7 is provided on the oven base 6. The first electrical connector 4 passes through the heat insulation cover 3 and is electrically connected to the thick film circuit 2. The first electrical connector 4 and the second electrical connector 7 can be electrically connected. The second electrical connector 7 is electrically connected to the control module. Thus, through the cooperation of the first electrical connector 4 and the second connector 7, the control module can control the thick film circuit 2.

[0065] like Figure 5 and Figure 6 As shown, in this embodiment, the main structure of the support plate 11 is a spherical structure that bulges upward from the edge to the center. This design causes the disc 1 to bend upward as a whole, thereby guiding the deformation of the disc 1 and avoiding the phenomenon of local bulging and concave areas of the disc 1 after heating, as well as the overall twisting of the disc 1. This reduces the probability of poor contact at the first electrical connector 4 and the second electrical connector 7 due to twisting. The convex arc structure also facilitates the guidance of oil to the edge of the disc 1, improving the smoothness of oil drainage. The convex arc structure also increases the strength of the disc 1 and reduces the probability of deformation of the disc 1.

[0066] In this embodiment, the height of the center of the plate 1 relative to the edge is H, where 1mm ≤ H ≤ 3mm. This height setting provides deformation guidance and strength enhancement while preventing the food from being placed on the plate 1 due to an excessively high center bulge. It also reduces the processing difficulty of the plate 1, thereby reducing the processing cost of the plate 1.

[0067] H can be, but is not limited to, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, etc.

[0068] like Figure 7 and Figure 8As shown, to further reduce the probability of pan body deformation, in one embodiment, the support plate portion 11 is stamped with multiple raised ribs 15 from bottom to top, and the portion of the support plate portion 11 without raised ribs 15 forms a plate-shaped main body. The raised ribs 15 can enhance the overall structural strength and rigidity of the pan body 1, reduce the probability of pan body 1 deforming due to heat, improve the reliability of the baking pan, and help ensure the connection stability and reliability of the first electrical connector 4 and the second electrical connector 7; at the same time, the setting of the raised ribs 15 can reduce the probability of food sticking to the pan body 1, and improve the cooking experience.

[0069] In one embodiment, the upper surfaces of the plate-shaped body are all located on the same spherical surface, which allows the force generated by the heat on the support plate 11 to be diffused more evenly in all directions, thereby improving the deformation resistance of the disc 1 and enhancing the structural stability of the disc 1.

[0070] In one embodiment, multiple sets of raised ribs 15 are spaced apart along the length direction of the disc body 1. Each set includes multiple raised ribs 15 spaced apart along the width direction of the disc body 1, and the raised ribs 15 extend along the length direction of the disc body 1. This facilitates the processing of the raised ribs 15, avoids the raised ribs 15 being too large, and also facilitates the setting of the heating circuit 21.

[0071] In one embodiment, the disc body 1 is provided with at least two heating zones, and each heating zone is provided with a set of protruding ribs 15. Exemplarily, the disc body 1 is provided with two heating zones side by side along the length direction, and the protruding ribs 15 of each heating zone extend along the length direction of the disc body 1 and are provided at intervals along the width direction of the disc body 1.

[0072] In the width direction of the rib portion 15, the height of the rib portion 15 protruding from the support plate portion 11 gradually decreases from the middle to both sides of the rib portion 15. This facilitates the dripping of oil on the rib portion 15 down onto the support plate portion 11, thereby facilitating oil recovery and cleaning of the plate body 1. At the same time, this design reduces the probability of food adhering to the plate body 1, preventing the food from burning. The cross-section of the rib portion 15 can be arc-shaped, triangular, or trapezoidal with a rounded chamfer and a smaller top and larger bottom.

[0073] The height of the protruding rib 15 from the support plate 11 is preferably 0.5mm to 2mm. The height of the protruding rib 15 from the support plate 11 can be, but is not limited to, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.8mm, 2mm, etc.

[0074] In one embodiment, the upper edge of the surrounding portion 12 is folded outward to form a flange portion 13, and the flange portion 13 is folded downward and inward to form a folded edge portion 14. The flange portion 13 and the folded edge portion 14 can enhance the structural strength and rigidity of the pan body 1 at the opening edge, reduce the probability of deformation of the pan body 1, and facilitate the user to pick up and put down the baking pan, thus improving the user experience of the baking pan.

[0075] The support plate 11 has two first sides that are arranged opposite each other in the width direction and two second sides that are arranged opposite each other in the length direction. The two first sides are parallel and spaced apart, and the two second sides have an arc-shaped structure. This increases the maximum width of the support plate 11, increases the amount of food it can hold, and also helps to reduce the overall structural size of the oven while ensuring the amount of food it can hold.

[0076] The heat shield 3 includes a base plate 31 and a side plate 32 connected to the periphery of the base plate 31. The edge of the side plate 32 is folded outward to form a connecting edge 33. The base plate 31 is spaced apart from the thick film circuit 2, and the connecting edge 33 is fitted to the support plate 11, thereby forming an installation cavity between the support plate 11 and the base plate 31. To better ensure sealing, the connecting edge 33 is welded to the support plate 11 of the disk body 1 to prevent water or oil from entering the installation cavity through the gap between the heat shield 3 and the disk body 1, and to prevent the heat generated by the thick film circuit 2 from leaking out through the gap.

[0077] Furthermore, the heat insulation cover 3 and the tray 1 are fully welded together to further improve the sealing of the connection between the two, facilitating the cleaning of the baking tray. The welding method can be laser welding or other welding methods. In other embodiments, the heat insulation cover 3 can be riveted to the tray 1 or connected with screws. Simultaneously, a sealing ring is provided at the connection point between the heat insulation cover 3 and the tray 1 to seal the connection.

[0078] In one embodiment, the included angle between the side plate portion 32 and the bottom plate portion 31 is an obtuse angle, thereby allowing the connecting edge portion 33 to be positioned close to the edge of the support plate portion 11 while the lower end of the heat insulation cover 3 tapers inward to reduce the overall footprint of the baking tray. The included angle between the side plate portion 32 and the bottom plate portion 31 is greater than 90° and less than 120°. The heat insulation cover 3 is made of high-temperature resistant materials such as stainless steel or ceramic.

[0079] In this embodiment, the bottom plate 31 of the heat insulation cover 3 can adopt an arc-shaped structure that is compatible with the support plate 11, or it can adopt a flat plate structure. This embodiment does not impose any specific restrictions on this.

[0080] like Figures 9 to 11As shown, in one embodiment, the thick-film circuit 2 is attached to the back of the pan body 1 and spaced apart from the heat insulation cover 3. The close attachment of the thick-film circuit 2 to the pan body 1 shortens the distance between them, thereby enhancing the heat conduction from the thick-film circuit 2 to the pan body 1 and improving the heating efficiency of the food. Furthermore, the spaced arrangement between the thick-film circuit 2 and the heat insulation cover 3 creates a heat-insulating cavity, which helps reduce the transfer of heat generated by the thick-film circuit 2 to the heat insulation cover 3, thus reducing downward radiation of heat from the thick-film circuit 2, reducing heat loss, and lowering the temperature of the heat insulation cover 3, improving the ease of use of the baking pan.

[0081] To improve the heating effect of the thick film circuit 2 on the food-bearing surface, a heat-reflective layer is provided on the side of the heat insulation cover 3 facing the thick film circuit 2. Since the heat generated by the thick film circuit 2 radiates upwards and downwards, by providing a heat-reflective layer, the heat energy radiated to the heat insulation cover 3 can be reflected in the direction towards the plate 1, preventing the heat insulation cover 3 from heating up. At the same time, it can also improve the heating effect of the thick film circuit 2 on the plate 1 and improve the heat energy utilization rate.

[0082] In other embodiments, a heat insulation structure is also provided in the heat insulation cavity. The heat insulation structure is used to further reduce the conduction of heat from the thick film circuit 2 to the heat insulation cover 3. The heat insulation structure may be, but is not limited to, heat insulation cotton, heat insulation coating or other structures that can reduce heat conduction.

[0083] The spacing between the thick-film circuit 2 and the heat insulation cover 3 is preferably 0.8mm to 2mm to ensure heat insulation while reducing the overall thickness of the baking pan and improving the user experience. The spacing between the thick-film circuit 2 and the heat insulation cover 3 can be, but is not limited to, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.8mm, and 2mm. However, it is understood that the spacing between the thick-film circuit 2 and the heat insulation cover 3 can be specifically limited according to the power of the thick-film circuit 2.

[0084] In one embodiment, the thick-film circuit 2 has multiple heating elements 211 dispersed at the bottom of the pan body 1. Each heating element 211 can generate heat after being powered on, and the heat generated by each heating element 211 radiates upward and covers part of the food-bearing surface. This ensures that the heat radiation area formed by all the heating elements 211 in the thick-film circuit 2 can roughly cover the entire food-bearing area, improving the heating uniformity of the food-bearing surface by the thick-film circuit 2. By setting the thick-film circuit 2 as a thick-film circuit 2, it is advantageous to set multiple discrete heating elements 211 to improve the heating uniformity of the food-bearing surface. At the same time, using the thick-film circuit 2 as a thick-film circuit 2 can reduce the footprint of the thick-film circuit 2, improve the overall structural compactness of the baking pan, and reduce the size and weight of the baking pan.

[0085] In one embodiment, the disk body 1 is provided with at least one heating zone, and the thick film circuit 2 includes a first insulating layer, a heating circuit 21 and a second insulating layer sequentially laid on the back side of the disk body 1. Each heating zone is provided with at least a first heating circuit 21, and each heating circuit 21 includes a plurality of heating devices 211 electrically connected in series. The heat radiation area of ​​the heating circuit 21 covers the corresponding heating zone.

[0086] The first insulating layer is disposed between the heating circuit 21 and the pan body 1 to prevent the pan body 1 from becoming electrified due to leakage of the heating circuit 21. The second insulating layer can prevent the heat insulation cover 3 from becoming electrified due to leakage of the heating circuit 21, thereby improving the safety of the baking pan. The heating devices 211 on the same heating circuit 21 are connected in series so that all heating devices 211 have the same current, ensuring the consistency of the heating power of the heating devices 211 and improving the heating uniformity. At the same time, it can reduce the voltage acting on a single heating device 211, ensuring the operational safety and reliability of the heating device 211.

[0087] Since the heating circuit 21 is relatively close to the disc 1 and relatively far from the heat insulation cover 3, the number of layers of the first insulating layer and the second insulating layer is further adjusted so that the thickness of the first insulating layer is greater than the thickness of the second insulating layer. This is to prevent the thick-film circuit 2 from being electrically broken down while reducing the cost of the thick-film circuit 2. Preferably, the number of layers of the first insulating layer is 3 to 5, and the number of layers of the second insulating layer is 1 to 3. However, it is understood that the number of layers of the first and second insulating layers can be specifically set according to the electrical breakdown parameters of the thick-film circuit 2.

[0088] The thick film circuit 2 is disposed on the bottom of the disk body 1 by sintering. The forming method of the thick film circuit 2 can be specifically set with reference to the existing technology. This embodiment does not limit or elaborate on this.

[0089] To improve the ease of use of the baking pan and oven, in one embodiment, the heating zone is provided with at least two heating circuits 21 for different heating zones. The control module can independently control the operation of each heating circuit 21, thereby enabling individual heating of each heating zone and achieving zoned cooking, improving the cooking experience, and reducing energy consumption and saving costs when a large heating zone is not needed. Simultaneously, this arrangement reduces the coverage area of ​​a single heating circuit 21, lowering the processing cost and difficulty of the heating circuit 21. In other embodiments, only one heating zone may be provided.

[0090] In one embodiment, the food-bearing surface has two heating zones, one on the left and one on the right, and two heating circuits 21 are arranged side by side in the left-right direction, that is, each heating circuit 21 heats the corresponding heating zone. In other embodiments, three heating zones can be arranged in the left-right direction, or four heating circuits 21 can be arranged in a rectangular pattern. The number of heating zones and the number and arrangement of heating circuits 21 in each heating zone can be adapted to local cooking habits.

[0091] In one embodiment, each heating zone is provided with one heating circuit 21 to simplify the structure and reduce control difficulty. In other embodiments, each heating zone may be provided with multiple heating circuits 21, and the heat radiation areas of the multiple heating circuits 21 are at least partially overlapping. The control module can control the multiple heating circuits 21 in the same heating zone separately, thereby controlling the heating temperature of the heating zone to meet the adjustment requirements of heating power for different foods or different cooking methods.

[0092] The heating elements 211 on the same heating circuit 21 are distributed in a serpentine pattern to ensure the distribution density of the heating elements 211 while improving the ease of connection between them. Specifically, the heating circuit 21 includes multiple heating groups spaced apart along a first direction, and each heating group includes multiple heating elements 211 spaced apart along a second direction. The heating elements 211 of the multiple heating groups are connected in series to form a serpentine structure, with the first direction perpendicular to the second direction. This arrangement of the heating elements 211 is relatively regular, which facilitates the determination of the local arrangement of the heating elements 211 according to the size of the heating area and the power of the heating elements 211.

[0093] In one embodiment, a heating group is provided between two adjacent ribs 15 in the same group and between the rib 15 and the adjacent surrounding wall, so that the heating group can avoid the ribs 15 while further improving the heating uniformity of the baking pan in all places.

[0094] In one embodiment, the first direction is the width direction of the disk body 1, and the second direction is the length direction of the disk body 1. This arrangement facilitates the selection of the number of heating devices 211 in each heating group according to the different lengths of the disk body 1 in the width direction, and facilitates the full coverage of the back side of the heating area by the thick film circuit 2. In other embodiments, the first direction is the length direction of the disk body 1, and the second direction is the width direction of the disk body 1.

[0095] In another embodiment, the heating circuit 21 includes a plurality of heating elements 211 arranged in a spiral series from the inside to the outside, thereby causing the heating elements 211 to diffuse outward from the center. In yet another embodiment, the heating circuit 21 includes a plurality of heating groups spaced apart from the inside to the outside, each heating group having a U-shaped structure, and the plurality of heating groups being arranged in series end to end from the inside to the outside.

[0096] Furthermore, for two adjacent heating groups whose connection positions are close to the left and right edges of the plate body 1, a heating device 211 is provided between the ends of the two heating groups that are close to the edge of the plate body 1, so as to avoid local low temperature areas at the edge of the plate body 1 and further improve the heating uniformity of the heating area.

[0097] In one embodiment, the heating devices 211 of two adjacent heating groups are staggered in the second direction, thereby reducing the overlap of the heat radiation range of the heating devices 211 of the two adjacent heating groups, ensuring that multiple heating devices 211 cover different areas, and improving the uniformity of heating temperature in different areas of the heating zone.

[0098] Within the same heating group, there is a distance d1 between two adjacent heating elements 211, and a distance d2 between two adjacent heating groups, where d2 ≥ d1. Preferably, 8 mm ≤ d1 ≤ 18 mm, so as to ensure that the heat radiation area of ​​all heating elements 211 can cover the food-bearing surface, while reducing or avoiding large heat radiation overlap areas between two heating elements 211, thereby avoiding localized high temperatures and reducing costs.

[0099] d1 can be, but is not limited to, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, and 18mm, etc. More preferably, 10mm ≤ d1 ≤ 15mm. More preferably, 10mm ≤ d1 ≤ 15mm.

[0100] It is worth noting that the spacing between two adjacent heating elements 211 is related to the rated power of a single heating element 211. The higher the rated power of a single heating element 211, the larger the heat radiation area generated by that single heating element 211. When the rated heating power of the baking pan remains constant, the number of heating elements 211 required decreases, and the spacing between two adjacent heating elements 211 increases. The spacing between two adjacent heating elements 211 can be specifically determined based on the rated power of the baking pan, the total area of ​​the heating zone, and the heating power of a single heating element 211. In one embodiment, a thermocouple 10 is provided on the pan body 1, with each thermocouple 10 corresponding to a heating zone. The thermocouple 10 is located within the setting area of ​​the thick-film circuit 2 and is offset from the heating circuit 21. The thermocouple 10 is used to detect the temperature of the pan body 1, facilitating the control module's control of the operation of the thick-film circuit 2. The terminals of the thermocouple 10 are electrically connected to the first conductive element 212 to transmit the detection signal to the control module through the first conductive element 212. By placing the thermocouple 10 on the disk body 1, the reliability and stability of the contact between the thermocouple 10 and the disk body 1 can be ensured, thereby improving the reliability, accuracy, and sensitivity of temperature measurement, and also increasing the temperature measurement response speed. The thermocouple 10 is staggered from the heating device 211 and the conductive component 212.

[0101] To improve the stability of the thermocouple 10 installation, the thermocouple 10 is welded to the back of the disk 1 to ensure reliable contact between the sensing end of the thermocouple 10 and the disk 1, simplifying the installation of the thermocouple 10. Furthermore, a clearance hole is provided on the thick-film circuit 2, and the thermocouple 10 is installed in the clearance hole to avoid interference between the thermocouple 10 and the thick-film circuit 2. The clearance hole is filled with high-temperature sealant to prevent leakage and heat loss. The high-temperature sealant used is an existing high-temperature resistant sealant; this invention does not limit the type of high-temperature sealant.

[0102] In one embodiment, each heating zone is provided with one thermocouple 10 to reduce costs and simplify the connection between the thermocouple 10 and the first electrical connector 4. The thermocouple 10 is preferably located in the central region of the heating zone to improve detection accuracy. In other embodiments, each heating zone may be provided with two or more thermocouples 10.

[0103] like Figures 11 to 16 As shown, the first electrical connector 4 is located in the middle of the disk body 1 along the length direction to reduce the influence of the disk body deformation on the first electrical connector 4 and ensure a reliable connection between the first electrical connector 4 and the second electrical connector 7.

[0104] In one embodiment, the first electrical connector 4 and the second electrical connector 7 are plugged in and out, i.e., the first electrical connector 4 is a male connector and the second electrical connector 7 is a female connector. The male and female connectors are plugged in and out to improve the ease of assembly and disassembly and the stability of the connection, thereby ensuring the stability and reliability of information transmission. The first electrical connector 4 extends out of the outer side of the heat insulation cover 3 to improve the ease of plugging in and out of the first connector 4 and the second electrical connector 7.

[0105] The heat insulation cover 3 has an installation port 311. The first electrical connector 4 includes an upper body 41 and an upper connector 42 disposed on the upper body 41. The upper body 41 is installed on the back side of the heat insulation cover 3. The upper connector 42 passes through the installation port 311 and is electrically connected to the second electrical connector 7. The second electrical connector 7 includes a lower body 71 and a lower connector 72 disposed on the lower body 71. The lower body 71 is installed on the furnace base 6. The lower connector 72 is plugged into and detached from the upper connector 42.

[0106] The specific structure and insertion / removal mechanism of the upper connector 42 and the lower connector 72 can be set with reference to the prior art, which is not the focus of this utility model and will not be described in detail here.

[0107] In one embodiment, a probe pin assembly is also installed on the upper body 41. The probe pin assembly corresponds one-to-one with the thermocouple 10. The probe pin assembly includes two probe pins 43. The two terminals of the thermocouple 10 are connected to the two probe pins 43 to connect the thermocouple 10 to the detection circuit. By integrating the upper connector 42 and the probe pins 43 onto the upper body 41, the integration of the first electrical connector 4 can be improved, the size of the first electrical connector 4 can be reduced, and the footprint can be reduced. A contact assembly is also provided on the lower body 71. The contact assembly includes two conductive contacts 73. The conductive contacts 73 correspond one-to-one with the probe pins 43. The lower connector 72 and the conductive contacts 73 are both electrically connected to the control module. When the first electrical connector 4 and the second electrical connector 7 are inserted or removed, the conductive contacts 73 abut against the corresponding probe pins 43, thereby enabling the communication connection between the thick film circuit 2, the thermocouple 10, and the control module.

[0108] In other embodiments, the electrical connection structures of the thermocouple 10 and the thick-film circuit 2 can be separately configured.

[0109] To improve the safety of the thick-film circuit 2, a temperature controller 44 is installed on the upper body 41. The temperature controller 44 is configured one-to-one with the heating zone or heating circuit 21, and is connected in series between the upper connector 42 and the heating circuit 21. Thus, by connecting the temperature controller 44 in series to the power supply circuit of the heating circuit 21, the temperature controller 44 turns on the power supply circuit when the temperature is below the preset temperature; the temperature controller 44 turns off when the temperature is equal to or higher than the preset temperature, thereby disconnecting the power supply to the heating circuit 21 and preventing the pan body 1 from being heated to an excessively high temperature, which could damage the first electrical connector 4 and improve the safety of the baking pan.

[0110] The first electrical connector 4 is sealed and installed on the heat insulation cover 3 via the mounting assembly 5 to prevent gaps from appearing at the connection point between the heat insulation cover 3 and the first electrical connector 4, which could lead to water or oil entering the sealed space. Specifically, the mounting assembly 5 includes a heat insulation support 53 and an annular seal 52. The heat insulation support 53 is sandwiched between the disc body 1 and the heat insulation cover 3, and the annular seal 52 is arranged around the mounting opening 311 and sandwiched between the heat insulation cover 3 and the upper seat 41. The annular seal 52 is made of high-temperature resistant rubber or silicone, and the heat insulation support 53 is preferably made of ceramic or other materials with heat insulation and support properties.

[0111] The above-mentioned configuration, by sealing the gap between the upper seat 41 and the heat insulation cover 3 with the annular seal 52, reduces the probability of water vapor and oil stains entering the interior of the heat insulation cover 3 through the gap, thereby improving the safety and reliability of the baking pan. The heat insulation support 53 can support the heat insulation cover 3, reducing the probability of the heat insulation cover 3 deforming due to heat or other reasons, improving the structural stability of the heat insulation cover 3 at the installation position of the first electrical connector 4, thereby improving the installation accuracy of the first electrical connector 4, and thus ensuring the stability and reliability of the plug-in connection between the first electrical connector 4 and the second electrical connector 7.

[0112] In one embodiment, the heat insulation support 53 is arranged in a ring and surrounds the mounting opening 311, and electronic components such as the upper connector 42 of the first electrical connector 4 are located inside the heat insulation support 53. This arrangement can reduce the conduction of heat to the inside of the heat insulation support 53, thereby improving the reliability of the first electrical connector 4. At the same time, the ring-shaped heat insulation support 53 supporting the mounting opening 311 can further enhance the support effect of the heat insulation support 53 on the heat insulation cover 3, and improve the stability and reliability of the first electrical connector 4.

[0113] Mounting assembly 5 includes multiple fixing parts 51 protruding from the bottom of the disk body 1. The fixing parts 51 are detachably fastened to the upper seat 41 by fasteners passing between the fixing parts 51 and the upper seat 41. By using multiple fixing parts 51 to fasten the upper seat 41, the space occupied by the mounting structure of the first electrical connector 4 can be reduced, which is beneficial for avoiding the electronic components on the first electrical connector 4. Fixing parts 51 are provided at both ends of the upper seat 41 along the length direction and on the opposite sides of the upper connector 42 to ensure the installation stability and reliability of the upper seat 41 and the upper connector 42.

[0114] The projection of the fixing component 51 on the disk body 1 is offset from that of the heating circuit 21. Specifically, the thick film circuit 2 has a clearance through hole, which corresponds to the fixing component 51. One end of the fixing component 51 passes through the clearance through hole and is connected to the bottom of the disk body 1. The connection method is preferably welding to ensure the stability of the fixing component 51 while simplifying the connection structure between the fixing component 51 and the disk body 1.

[0115] To improve the ease of setting the baking tray on the oven base 6, the upper end of the oven base 6 is recessed to form a placement groove, in which the lower part of the baking tray is accommodated. This placement groove allows for the baking tray to be positioned and installed on the oven base 6. The shape of the placement groove is adapted to the shape of the baking tray to ensure the stability of the baking tray within the groove.

[0116] To further improve the stability of the baking tray on the oven base 6, mounting bosses 34 protrude downwards from the baking tray, with at least two mounting bosses 34 spaced apart. Guide grooves 611 are formed on the oven base 6, corresponding one-to-one with the mounting bosses 34. The mounting bosses 34 are inserted into the guide grooves 611 to further guide the baking tray during installation. Mounting bosses 34 protrude from the heat insulation cover 3, with one mounting boss 34 at each of the four corners of the heat insulation cover 3 to ensure guiding stability and reliability. Furthermore, the mounting bosses 34 are formed by pressing the bottom of the heat insulation cover 3 downwards to reduce processing difficulty and improve the overall structural strength and rigidity of the heat insulation cover 3. A guide recess 61 is formed by pressing downwards from the upper end of the oven base 6, and the cavity of the guide recess 61 forms the guide groove 611.

[0117] The lower end of the mounting boss 34 is lower than or flush with the lower end of the first electrical connector 4, so that when the baking tray is assembled onto the oven base 6, the mounting boss 34 first engages with the guide groove 611 to guide the installation of the baking tray, thereby providing guidance for the plugging and unplugging connection of the first electrical connector 4 and the second electrical connector 7, ensuring the installation reliability of the first electrical connector 4 and the second electrical connector 7, and improving assembly efficiency.

[0118] The mounting boss 34 is preferably a tapered boss that is larger at the top and smaller at the bottom, and the guide groove 611 is a tapered groove. This allows the mounting boss 34 to gradually tighten its fit with the guide groove 611 as it is inserted, improving the ease of placing and removing the baking tray and the stability after installation. In one embodiment, two mounting bosses 34 are provided at both ends of each first side, that is, the four mounting bosses 34 are arranged in a rectangular pattern to improve positioning reliability.

[0119] To improve the insertion and removal stability and reliability of the first electrical connector 4 and the second electrical connector 7, in one embodiment, the lower seat 71 has an upward-facing insertion positioning groove 711, and the upper seat 41 is inserted into the insertion positioning groove 711. Thus, the positioning and guidance of the first electrical connector 4 and the second electrical connector 7 during assembly are achieved through the upper seat 41 and the insertion positioning groove 711, ensuring the assembly accuracy of the first electrical connector 4 and the second electrical connector 7.

[0120] To collect waste oil generated during cooking, an oil collection box 40 is installed on the stove base 6. An upper oil drain channel 8 is provided at one end of the baking pan, with its upper end penetrating the pan body 1 and its lower end penetrating the heat insulation cover 3. A lower oil drain channel 62 is provided on the stove base 6, with its inlet end connected to the outlet end of the upper oil drain channel 8. The inlet end of the upper oil drain channel 8 is formed on the surface of the pan body 1, and the outlet end of the lower oil drain channel 62 is connected to the oil collection box 40. Thus, the waste oil generated on the baking pan flows sequentially through the upper oil drain channel 8 and the lower oil drain channel 62 into the oil collection box 40, achieving waste oil recycling.

[0121] In one embodiment, the upper oil drain channel 8 is selectively opened or closed, so that when the upper oil drain channel 8 is open, the baking pan can be used for frying, grilling and other operations of food, and when the upper oil drain channel 8 is closed, the oven can be used for steaming and other cooking, thereby enabling the baking pan to realize multiple cooking modes and improving the user experience of the oven.

[0122] Specifically, a sealing element is detachably installed at the upper or lower end of the upper oil drain channel 8. This sealing element blocks the upper oil drain channel 8, allowing it to be removed when it is necessary to open, thus ensuring normal oil drainage. Furthermore, the sealing element is detachably installed at the upper end of the upper oil drain channel 8, thereby preventing oil accumulation within the upper oil drain channel 8 when it is blocked. The sealing element can be, but is not limited to, a pipe cap or similar sealing structure.

[0123] Example 2

[0124] This embodiment provides an oven, and the basic structure of the oven provided in this embodiment can be set with reference to the above embodiments, with only some differences in settings. This embodiment will not repeat the structure that is the same as that in the above embodiments.

[0125] like Figure 17 and Figure 18 As shown, in this embodiment, a buffer 30 is provided between the bottom of the mounting boss 34 and the bottom of the guide groove 611, thereby enabling buffering when the baking tray is installed on the oven base 6, reducing impact, and improving safety and reliability.

[0126] In this embodiment, the buffer 30 is detachably mounted on the bottom of the guide groove 611, reducing the probability of the buffer 30 falling off and improving its durability. In other embodiments, the buffer 30 may also be mounted on the mounting boss 34.

[0127] To improve the stability of the buffer component 30, the buffer component 30 includes a buffer pad portion 301 and a snap-fit ​​portion 302. The snap-fit ​​portion 302 is provided with an annular groove, and the bottom of the guide groove 611 has a fixing hole. The edge of the fixing hole is inserted into the annular groove, and the buffer pad portion 301 is disposed at the bottom of the guide groove 611. When the mounting boss 34 is inserted into the guide groove 611, the bottom of the mounting boss 34 abuts against the buffer pad portion 301.

[0128] The buffer 30 also includes a guide post 303 connected to the snap-fit ​​portion 302. The cross-sectional area of ​​the snap-fit ​​portion 302 gradually decreases in the direction away from the buffer pad portion 301 to form a frustum structure. The guide post 303 is connected to the small end of the frustum structure and is used to guide the insertion fixing hole, thereby improving the assembly efficiency of the buffer 30.

[0129] Other structures of the oven can be set up with reference to the above embodiments, and will not be described again here.

[0130] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0131] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A baking pan, characterized in that, The baking pan includes a pan body (1), which includes a support plate portion (11) and a surrounding edge portion (12) that surrounds the periphery of the support plate portion (11). The plate-shaped main body of the support plate portion (11) bulges upward from the edge to the center.

2. The baking pan according to claim 1, characterized in that, The height of the center of the disk (1) relative to the edge of the disk (1) is H, where 1mm ≤ H ≤ 3mm.

3. The baking pan according to claim 1, characterized in that, The support plate (11) is stamped from bottom to top to form a rib (15), and multiple ribs (15) are provided. The part of the support plate (11) without the ribs (15) forms the plate-shaped main body.

4. The baking pan according to claim 3, characterized in that, The upper surfaces of the plate-shaped main body are all located on the same spherical surface.

5. The baking pan according to claim 3, characterized in that, The cross-section of the convex rib (15) is triangular, arc-shaped, or trapezoidal with a smaller top and a larger bottom; And / or, the height of the protruding rib (15) protruding from the support plate (11) is 1mm to 2mm; And / or, the ribs (15) are provided in multiple groups at intervals along the length direction of the disc body (1), each group including multiple ribs (15) at intervals along the width direction of the disc body (1), the ribs (15) extending along the length direction of the disc body (1).

6. The baking pan according to claim 4, characterized in that, The baking pan includes a thick film circuit (2) covering the back side of the support plate (11). The thick film circuit (2) includes multiple heating groups. Each heating group includes multiple heating devices (211) spaced apart and connected in series along the width direction of the pan body (1). The heating devices (211) of the multiple heating groups are connected in series to form a serpentine circuit structure. A heating group is provided between two adjacent ribs (15) and between the outermost rib (15) and the surrounding edge (12).

7. The baking pan according to claim 1, characterized in that, The upper end of the surrounding edge (12) is folded outward to form a flange (13), and the outer edge of the flange (13) is folded outward to form a folded edge (14). The folded edge (14) is disposed opposite to the lower side of the flange (13).

8. The baking pan according to any one of claims 1-7, characterized in that, The baking tray includes a heat insulation cover (3) covering the back side of the tray body (1), and the heat insulation cover (3) is fully welded to the tray body (1); And / or, the baking pan includes a heat insulation cover (3) covering the back of the pan body (1), the heat insulation cover (3) includes a bottom plate (31) and a side plate (32) surrounding the periphery of the bottom plate (31), the upper end of the side plate (32) is folded outward to have a connecting edge (33), the connecting edge (33) is attached to the lower side of the support plate (11); And / or, the baking tray includes a heat insulation cover (3) covering the back side of the tray body (1) and a thick film circuit (2) covering the back side of the tray body (1). A first electrical connector (4) is provided on the back side of the tray body (1). The first electrical connector (4) is located at the middle part of the tray body (1) along the length direction and is electrically connected to the thick film circuit (2). The first electrical connector (4) extends out of the heat insulation cover (2).

9. An oven, comprising an oven base (6), characterized in that, It also includes a baking tray as described in any one of claims 1-8, the baking tray being supported on the oven base (6).

10. The oven according to claim 9, characterized in that, The bottom of the heat insulation cover (3) is provided with a plurality of mounting bosses (34), and the upper end of the furnace base (6) is recessed with a guide groove (611). The guide groove (611) is provided in a one-to-one correspondence with the mounting bosses (34). The mounting bosses (34) are inserted into the guide grooves (611), and a buffer (30) is provided between the bottom of the mounting bosses (34) and the bottom of the guide grooves (611).

11. The oven according to claim 10, characterized in that, The buffer (30) is detachably installed at the bottom of the guide groove (611).

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