Frying and baking machine

Abstract

The utility model discloses a frying and baking machine which comprises an upper baking tray and an upper cover body, a first heating element is arranged between the upper baking tray and the upper cover body, the first heating element is integrally formed, the first heating element is arranged from the edge of the upper baking tray to the central area of the upper baking tray, and the first heating element surrounds the central area of the upper baking tray to form multi-interval arrangement. And the interval from the edge of the upper baking tray to the central area of the upper baking tray is gradually increased. According to the frying and baking machine, by arranging the integrally-formed first heating elements and enabling the first heating elements to surround the center area of the upper baking tray at multiple intervals, the temperature of the upper baking tray can be evenly distributed, and therefore food can be baked through the upper baking tray; the technical problem that the surface of food is hard and thick due to double-face frying in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the field of small household appliances, and in particular to a frying and grilling machine. Background Art

[0002] Typically, the grilling machine includes an upper grill assembly and a lower grill assembly, wherein the upper grill assembly includes an upper grill and an upper cover, and the lower grill assembly includes a lower grill and a lower cover, and a cooking space is formed between the upper grill and the lower grill, and food in the cooking space is heated by a heating element.

[0003] In the prior art, a frying machine simultaneously fries the upper and lower sides of food to achieve cooking and heating of food. Because the frying machine can quickly provide heat to the food in a short time during the process of heating the food by frying, the food will absorb more heat in a short time and be cooked quickly. For example, when using a frying machine to make cakes, the cakes will form thick hard crusts on the upper and lower surfaces due to the frying effect of the frying machine, and the thick hard crust will affect the chewing taste of the cakes.

[0004] At the same time, during the frying process, in order to provide more heat to the food in a short time, the heat of the heating element is usually concentrated on the bottom of the upper or lower baking tray, and the heat generated by the heating element is transferred to the bottom of the upper or lower baking tray by heat conduction. Although the concentrated distribution can quickly increase the heat of the upper or lower baking tray, it may also cause the food to burn or be heated unevenly due to the concentrated heat. In severe cases, part of the food may be burnt while the other part is still not cooked. In this way, when frying the food on both sides, the user needs to strictly control the heating time of the food, or frequently stir-fry the food to prevent the food from burning.

[0005] In order to prevent the food from getting burnt due to the high heat provided, cooking oil is added to the upper or lower baking tray to prevent the food from sticking to the pan or even getting burnt due to the concentrated firepower of the heating element. Although adding cooking oil can prevent the food from sticking to the pan or getting burnt, the adhesion of cooking oil will increase the difficulty of cleaning the baking tray, affecting the user experience of the frying and grilling machine. Utility Model Content

[0006] The present application discloses a grilling machine, thereby solving the technical problem in the prior art that double-sided grilling results in a thick hard crust on the surface of food.

[0007] The present application discloses a grilling machine, comprising an upper grill for grilling food, and an upper cover, wherein a first heating element is arranged between the upper grill and the upper cover, wherein the first heating element is integrally formed, and arranged from an edge of the upper grill to a central area of ​​the upper grill, and the first heating element surrounds the central area of ​​the upper grill to form a multi-layered spaced arrangement, wherein the space gradually increases from the edge of the upper grill to the central area of ​​the upper grill.

[0008] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0009] In order to further strengthen the technical problem of uniform heat distribution.

[0010] Optionally, the first heating element includes an integrated radial section and a surrounding section, the first end of the first heating element is arranged at the edge of the upper baking tray, the radial section radially extends from the first end to the central area of ​​the upper baking tray, the surrounding section reciprocates around the central area of ​​the upper baking tray from the inside to the outside to form a multi-layer interval arrangement, the reciprocating position of the surrounding section is arranged adjacent to the radial section, and the second end of the first heating element is arranged at the edge of the upper baking tray.

[0011] To further enhance the technical problem of lower overall heat on the upper baking tray.

[0012] Optionally, the grilling machine includes an integrally formed second heating element, and the second heating element is arranged in parallel with the first heating element and spaced apart from each other.

[0013] In order to further evenly distribute the heat on the upper baking tray.

[0014] Optionally, the first heating element includes an integrated first surround segment and a second surround segment, the first end of the first heating element is arranged at the edge of the upper baking tray, the first surround segment surrounds the central area of ​​the upper baking tray from the outside to the inside from the first end, the first surround segment forms a folded position in the central area of ​​the upper baking tray, the second surround segment is arranged in parallel with the first surround segment from the inside to the outside at the folded position, forming a multi-layer interval arrangement, and the second end of the first heating element is arranged at the edge of the upper baking tray.

[0015] To increase the total heat when heating food on the upper baking tray.

[0016] Optionally, the grilling machine includes an integrally formed second heating element, the second heating element includes an integral third surrounding segment and a fourth surrounding segment, the third surrounding segment surrounds the central area of ​​the upper grill plate from the outside to the inside and forms a folded position, and the second heating element is arranged in parallel with the first heating element.

[0017] In order to further evenly distribute the heat on the upper baking tray.

[0018] Optionally, an opening is formed between the two opposite reciprocating positions, and the ratio of the length of the opening to the length of the upper baking tray is 0.07-0.11.

[0019] In order to further evenly distribute the heat on the upper baking tray.

[0020] Optionally, the first heating element is provided with at least four layers of heat equalizing rings, and the distances between two adjacent heat equalizing rings are equidistantly distributed, and the ratio between the equidistant value and the length of the upper baking tray is 0.01 to 0.016.

[0021] Further, it is convenient for the first heating element to be electrically connected to the outside.

[0022] Optionally, the first heating element includes a head end and a tail end, the head end is located at the edge of the upper baking tray, the head end surrounds the central area of ​​the upper baking tray to the tail end, and the tail end is arranged adjacent to the head end and connected to the electrical lead-out terminal.

[0023] In order to further arrange more first heating elements on the upper baking tray.

[0024] Optionally, the upper baking tray includes oppositely disposed straight edges, and a portion of the first heating element corresponding to the straight edges is disposed parallel to the straight edges.

[0025] To further increase the heat add the edges of the upper baking sheet.

[0026] Optionally, the upper baking tray includes oppositely disposed straight edges, and a portion of the first heating element corresponding to the straight edges is inclined relative to the straight edges.

[0027] The grilling machine of the present application is provided with an integrally formed first heating element, and the first heating element is arranged at intervals around the central area of ​​the upper grilling plate so that the temperature on the upper grilling plate can be evenly distributed. Moreover, the first heating element is continuously arranged around the central area of ​​the upper grilling plate, and the provision of the first heating element not only reduces the number of cold ends, but also reduces the area requiring heat compensation from other hot ends of the first heating element, further making the overall heat distribution of the upper grilling plate more even. This further improves the technical effect of grilling food on the upper grilling plate, and solves the technical problem in the prior art that double-sided frying causes a thick hard crust on the surface of the food.

[0028] In order to facilitate the connection between the two ends of the first heating element and the electrical components of the grilling machine, the first end and the second end of the first heating element are arranged at the edge of the upper grilling plate, and the first end and the second end are arranged adjacent to each other.

[0029] The grilling machine comprises an integrally formed first heating element and an integrally formed second heating element, which can increase the total heat of the upper grill plate when heating food, so that the upper grill plate generates stable and lasting heat, and enhances the effect of the upper grill plate on grilling food.

[0030] The first heating element includes an integrated first surrounding section and a second surrounding section. The first end of the first heating element is arranged at the edge of the upper baking tray. The first surrounding section surrounds the central area of ​​the upper baking tray from the outside to the inside from the first end. The first surrounding section forms a folded position in the central area of ​​the upper baking tray. The second surrounding section is arranged in parallel with the first surrounding section from the inside to the outside at the folded position, thereby evenly distributing the heat of the upper baking tray.

[0031] The grilling machine includes an integrally formed second heating element, the second heating element includes an integral third surrounding section and a fourth surrounding section, the third surrounding section surrounds the central area of ​​the upper grilling plate from the outside to the inside and forms a folded position, and the second heating element is arranged in parallel with the first heating element. In this way, the total heat of the upper grilling plate when heating food can be increased, and the time for the grilling machine to cook food can be reduced.

[0032] An opening is formed between the two opposite reciprocating positions, and the ratio between the length of the opening and the length of the upper baking tray is 0.07-0.11, so that the heat of the upper baking tray can be further evenly distributed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of a grilling machine in one embodiment of the present application;

[0034] Figure 2 This is a structural schematic diagram of a grilling machine from another perspective in one embodiment of the present application;

[0035] Figure 3 This is an exploded schematic diagram of the overall structure of a grilling machine in one embodiment of the present application;

[0036] Figure 4 This is a schematic diagram of the structure of a first heating element of a grilling machine in one embodiment of the present application;

[0037] Figure 5 This is a schematic diagram of the structure of the first heating element and the second heating element of the grilling machine in one embodiment of the present application;

[0038] Figure 6 This is a schematic diagram of the structure of another first heating element of a grilling machine in one embodiment of the present application;

[0039] Figure 7 Schematic diagram of the structure of another first heating element and a second heating element of a grilling machine in one embodiment of the present application.

[0040] The reference numerals in the figures are described as follows:

[0041] 100. Grilling machine;

[0042] 200, upper baking tray; 201, center area; 202, edge; 203, straight edge;

[0043] 300, upper cover; 301, reflective cover;

[0044] 400, first heating element; 401, radial section; 402, surrounding section; 403, first end; 404, second end; 405, reciprocating position; 406, first surrounding section; 407, second surrounding section; 408, folded position; 409, opening; 410, electrical lead end; 411, first area; 412, second area;

[0045] 500, second heating element; 501, third surrounding section; 502, fourth surrounding section. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0049] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a grilling machine 100 includes an upper grilling plate 200 for grilling food, and an upper cover 300. A first heating element 400 is arranged between the upper grilling plate 200 and the upper cover 300. The first heating element 400 is integrally formed. The first heating element 400 is arranged from an edge 202 of the upper grilling plate 200 to a central area 201 of the upper grilling plate 200, and the first heating element 400 surrounds the central area 201 of the upper grilling plate 200 to form a multi-layer spaced arrangement, and the spacing gradually increases from the edge 202 of the upper grilling plate 200 to the central area 201 of the upper grilling plate 200.

[0050] In this embodiment, the upper baking tray 200 of the grilling machine 100 does not contact the food, so that the upper baking tray 200 can bake the food, thereby achieving the effect of the upper baking tray 200 baking the food in the cooking space and the lower baking tray frying the food as a whole.

[0051] The first heating element 400 is arranged between the upper baking tray 200 and the upper cover 300. Usually, food is placed on the lower baking tray to cook the food. When the upper baking tray 200 and the lower baking tray are covered, the first heating element 400 is located above and around the food. In this way, the first heating element 400 mainly heats the food by heat radiation, thereby achieving a baking effect.

[0052] In order to enable the first heating element 400 to generate heat radiation to heat the food more evenly during the process of heating the food by heat radiation, the first heating element 400 is arranged in multiple intervals, with the intervals gradually increasing from the edge 202 of the upper baking tray 200 to the central area 201 of the upper baking tray 200.

[0053] Because when the first heating element 400 heats the food, the heat radiated by the first heating element 400 will be concentrated more toward the central area 201 of the upper baking tray 200, and less toward the edge 202 of the upper baking tray 200. Therefore, if the first heating elements 400 are evenly spaced around the central area 201 of the upper baking tray 200, not only the first heating elements 400 close to the central area 201 of the upper baking tray 200 will radiate heat toward the central area 201 of the upper baking tray 200, but also the first heating elements 400 far from the central area 201 of the upper baking tray 200 and close to the edge 202 of the upper baking tray 200 will radiate heat toward the central area 201 of the upper baking tray 200, thus causing the heat to be concentrated in the central area 201 of the upper baking tray 200, and less heat at the edge 202 of the upper baking tray 200, resulting in uneven heat distribution of the upper baking tray 200 as a whole.

[0054] In order to make the overall heat distribution of the upper baking tray 200 uniform, the first heating elements 400 on the upper baking tray 200 are distributed in a manner that the first heating elements 400 near the edge 202 of the upper baking tray 200 are arranged densely, and the first heating elements 400 near the central area 201 of the upper baking tray 200 are arranged sparsely, so that although all the first heating elements 400 radiate heat to the central area 201 of the upper baking tray 200, the first heating elements 400 are far away from the central area 201 of the upper baking tray 200, so the total heat radiated to the central area 201 is less; the first heating elements 400 near the edge 202 of the upper baking tray 200 are arranged densely, but the first heating elements 400 radiate less heat to the edge 202 of the upper baking tray 200. Finally, the total heat radiated from the central area 201 of the upper baking tray 200 is roughly equal to the total heat radiated from the edge 202 of the upper baking tray 200, and the overall heat of the upper baking tray 200 is evenly distributed.

[0055] In the prior art, such as in Chinese invention patent CN109330397A, in order to make the heat radiated by the food close to or equal, improve the uniform coloring of the food and the uniformity of the temperature field, the heating structure is set as two heating elements, and the two heating elements surround the central area 201, thereby forming adjacent first heating bodies (and / or adjacent second heating bodies) that decrease from the inside to the outside. In the prior art, the heating element includes a hot end and a cold end. Because the cold end needs to be connected to the electrical component, in order to prevent the temperature at the cold end from being too high, causing the electrical component to be subjected to high temperature and thus affecting the normal use of the electrical component, the heating wire at the cold end is wound more sparsely, and the heating wire at the hot end is wound more tightly, so that the temperature at the cold end where the heating wire is sparsely arranged is lower, which can effectively reduce the impact of high temperature on the electrical component.

[0056] However, because the heating structure is formed by winding two heating elements, the heating structure has a total of four cold ends, and it can be easily seen from the attached figure that the four cold ends are concentrated in the same area, so the heat in this area will be much lower than the heat in other areas, resulting in uneven overall heat distribution.

[0057] In order to reduce the number of cold ends in the first heating element 400, so that the overall heat distribution of the upper baking tray 200 is uniform, the first heating element 400 in the present application is integrally formed, that is, there is only one first heating element 400. One first heating element 400 is continuously formed around the central area 201 of the upper baking tray 200. The setting of one first heating element 400 not only reduces the number of cold ends, but also reduces the area that requires heat compensation from other hot ends of the first heating element 400, further making the overall heat distribution of the upper baking tray 200 more uniform.

[0058] At the same time, the heating structure formed by winding two heating elements has a complicated winding process. When one of the heating elements is wound, it needs to be fixed firmly so that the other heating element can be wound and the required distance is spaced between the two heating elements.

[0059] When only one first heating element 400 is to be wound, during the winding process, it is only necessary to fix one end of the first heating element 400 located at the edge 202 of the upper baking plate 200. The fixing of one end of the first heating element 400 is relatively simple and convenient, which can improve the winding and installation efficiency of the first heating element 400.

[0060] Because the size of the upper baking tray 200 is fixed on the same grilling machine 100, when the first heating elements 400 are arranged at a certain interval, the number of turns of the first heating elements 400 and the distance between the innermost first heating element 400 and the central area 201 of the upper baking tray 200 can be determined, so that the number of turns of the first heating elements 400 and the distance between the innermost first heating element 400 and the central area 201 of the upper baking tray 200 can be adjusted by setting the interval distance, so that the heat distribution on the upper baking tray 200 is more uniform.

[0061] The two ends of the first heating element 400 can be arranged adjacent to each other; one end can be arranged at the edge 202 of the upper baking tray 200, and the other end can be arranged at the central area 201 of the upper baking tray 200; or the two ends of the first heating element 400 can be arranged in the area.

[0062] The first heating element 400 includes an integrated radial section 401 and a surrounding section 402. The first end 403 of the first heating element 400 is arranged at the edge 202 of the upper baking tray 200. The radial section 401 radially extends from the first end 403 to the central area 201 of the upper baking tray 200. The surrounding section 402 reciprocates around the central area 201 of the upper baking tray 200 from the inside to the outside to form a multi-layer interval arrangement. The reciprocating position 405 of the surrounding section 402 is arranged adjacent to the radial section 401. The second end 404 of the first heating element 400 is arranged at the edge 202 of the upper baking tray 200.

[0063] Furthermore, in order to facilitate the connection between the two ends of the first heating element 400 and the electrical components of the grilling machine 100, the first end 403 and the second end 404 of the first heating element 400 are arranged at the edge 202 of the upper grilling plate 200, and the first end 403 and the second end 404 are arranged adjacent to each other.

[0064] Because the first end 403 and the second end 404 are both arranged at the edge 202 of the upper baking tray 200, in order to facilitate the first heating element 400 at the first end 403 to extend into the central area 201 of the upper baking tray 200, the first heating element 400 is provided with a plurality of reciprocating positions 405, and the relative reciprocating positions 405 are arranged at intervals, so that the radial segment 401 formed by the extension of the first end 403 can pass through the middle of each reciprocating position 405 and extend to the central area 201 of the upper baking tray 200.

[0065] The area between the reset portions 405 will be too low in heat because the surrounding section 402 cannot cover it. In order to further evenly distribute the heat of the upper baking tray 200, the radial section 401 crosses the spaced area in the middle of the reset portions 405. This not only fills the area that the surrounding section 402 cannot cover, but also allows the first heating element 400 to extend into the interior of the upper baking tray 200 and be wound around the central area 201 starting from the interior of the upper baking tray 200.

[0066] The area where the multi-layer spaced arrangement is arranged includes the area where the first heating elements 400 are spaced from the edge 202 of the upper baking tray 200 to the central area 201 of the upper baking tray 200. Because the intervals of the first heating elements 400 change gradually, the temperature on the upper baking tray 200 can be evenly distributed. Because the radial segments 401 are arranged between the reciprocating positions 405, the heat of the area is compensated by the radial segments 401, so that the heat of the area reaches the average temperature of the upper baking tray 200. The area where the multi-layer spaced arrangement is arranged also includes the area where the radial segments 401 cross the reciprocating positions 405.

[0067] As a result, the temperatures of the plurality of first regions 411 spaced apart from each other and the second regions 412 spaced apart from each other on the first heating element 400 are substantially the same, so that food can be heated evenly during the cooking process.

[0068] A reflective cover 301 is provided on the upper cover 300 , and the heat of the first heating element 400 is reflected back into the cooking cavity through the reflective cover 301 , thereby improving the utilization rate of the heat of the first heating element 400 .

[0069] refer to Figure 5 As shown, further, in order to increase the total heat when the upper baking tray 200 heats food, so that the upper baking tray 200 generates stable and lasting heat, and enhance the effect of the upper baking tray 200 on baking food, the grilling machine 100 includes an integrally formed second heating element 500, and the second heating element 500 is arranged in parallel with the first heating element 400 at intervals.

[0070] The second heating element 500 is also integrally formed like the first heating element 400. The integrally formed second heating element 500 and the integrally formed first heating element 400 play the same role, both of which can reduce the number of cold ends and simplify the winding process.

[0071] At the same time, a second heating element 500 is added, and the path along which the second heating element 500 extends is arranged in parallel with the path of the first heating element 400 , so that the total heat generated by the upper baking tray 200 can be increased and the heat can be evenly distributed on the upper baking tray 200 .

[0072] In order to prevent a short circuit between the first heating element 400 and the second heating element 500 due to excessive current, the first heating element 400 and the second heating element 500 are spaced apart from each other. The spacing can maintain a safe distance between the first heating element 400 and the second heating element 500.

[0073] Through the cooperation of the first heating element 400 and the second heating element 500 , stable and lasting heat is provided to the upper baking tray 200 , thereby improving the effect of the upper baking tray 200 on baking food.

[0074] When the outer contour of the upper baking tray 200 is set to a square, the first heating element 400 is set to a circular shape in a layer close to the central area 201, and the other layers are set to a square shape. The circular shape close to the central area 201 can better radiate the heat of the first heating element 400 to the central area 201 and the edge 202 of the upper baking tray 200, so that the heat is evenly distributed on the upper baking tray 200; at the same time, because the innermost layer of the first heating element 400 has a smaller curvature, setting it to a circular shape can facilitate the bending of the first heating element 400.

[0075] refer to Figure 6 As shown, in the present embodiment, in order to further evenly distribute the heat of the upper baking tray 200, the first heating element 400 includes an integrated first surrounding segment 406 and a second surrounding segment 407, the first end 403 of the first heating element 400 is arranged at the edge 202 of the upper baking tray 200, the first surrounding segment 406 surrounds the central area 201 of the upper baking tray 200 from the outside to the inside from the first end 403, the first surrounding segment 406 forms a folded position 408 in the central area 201 of the upper baking tray 200, the second surrounding segment 407 is arranged in parallel with the first surrounding segment 406 from the inside to the outside at the folded position 408, forming a multi-layer spaced arrangement, and the second end 404 of the first heating element 400 is arranged at the edge 202 of the upper baking tray 200.

[0076] The first surround segment 406 and the second surround segment 407 are integrally formed. The integrally formed first surround segment 406 and the second surround segment 407 have the same function as the integrally formed first heating element 400, which can reduce the number of cold ends and simplify the winding process.

[0077] The first end 403 and the second end 404 of the first heating element 400 are both disposed at the edge 202 of the upper grill plate 200 , so as to facilitate electrical connection between the two ends of the first heating element 400 and the electrical components of the grilling machine 100 .

[0078] Because the first heating tubes are more sparsely spaced as they are closer to the center area 201 of the upper baking tray 200, in order to further increase the heat in the center area 201 and prevent the center area 201 from having low heat and high heat at the edge 202 due to too little radiation heat, a folding position 408 is formed in the center area 201 of the upper baking tray 200 in the first surround section 406, and the folding position 408 extends toward the center area 201 close to the upper baking tray 200. Heat is provided to the center area 201 through the folding position 408, thereby meeting the heat demand of the center area 201 and allowing the heat of the upper baking tray 200 to be evenly distributed.

[0079] The second surrounding section 407 starts from the folded position 408 and extends to the outer edge of the upper baking tray 200 in the opposite direction of the first surrounding section 406, thereby increasing the heat radiated by the first heating element 400 and reducing the time for cooking food.

[0080] The first heating element 400 is arranged in a square shape, and the folded position 408 is also arranged parallel to the first surrounding section 406 corresponding to the outer periphery. The first heating element 400 arranged in a square shape can better cover the entire upper baking tray 200, expand the area of ​​the first region 411, and reduce the blind area not covered by the first heating element 400.

[0081] refer to Figure 7 As shown, further, in order to increase the total heat of the upper baking tray 200 when heating food and reduce the time for the grilling machine 100 to cook food, the grilling machine 100 includes an integrally formed second heating element 500, and the second heating element 500 includes an integral third surrounding segment 501 and a fourth surrounding segment 502, the third surrounding segment 501 surrounds the central area 201 of the upper baking tray 200 from the outside to the inside and forms a folded position 408, and the second heating element 500 is arranged in parallel with the first heating element 400.

[0082] The second heating element 500 is also integrally formed like the first heating element 400. The integrally formed second heating element 500 and the integrally formed first heating element 400 play the same role, both of which can reduce the number of cold ends and simplify the winding process.

[0083] At the same time, a second heating element 500 is added, and the path along which the second heating element 500 extends is arranged in parallel with the path of the first heating element 400 , so that the total heat generated by the upper baking tray 200 can be increased and the heat can be evenly distributed on the upper baking tray 200 .

[0084] The first heating element 400 and the second heating element 500 are both arranged in a square shape, and the folding position 408 of the first heating element 400 and the folding position 408 of the second heating element 500 close to the central area 201 are arranged opposite to each other. The two folding positions 408 arranged opposite to each other can not only provide suitable heat for the central area 201, but also reserve enough space for the central area 201 to radiate heat to the surroundings, thereby preventing the heat from being excessively concentrated in the central area 201.

[0085] The first heating element 400 and the second heating element 500 are arranged in reverse parallel, so that the heat generated between the first heating element 400 and the second heating element 500 can complement each other. On the premise that the heat of the upper baking tray 200 is uniform, the total heat of the upper baking tray 200 is increased and the heating time of the upper baking tray 200 for food is shortened.

[0086] In order to further evenly distribute the heat of the upper baking tray 200 , an opening 409 is formed between the two opposite reciprocating positions 405 , and the ratio between the length of the opening 409 and the length of the upper baking tray 200 is 0.07-0.11.

[0087] If the distance between the openings 409 is large, the heat gathered in the area near the openings 409 is lower than the heat in other areas. At this time, the areas with multiple layers of spacing on the upper baking tray 200 are mainly concentrated in the area away from the radial section 401 and near the outlet. The areas with multiple layers of spacing occupy a smaller area of ​​the entire upper baking tray 200. When cooking food, the part of the food near the first area 411 is already cooked, while the part of the food near the outlet still needs to be heated and cooked. As a preferred solution, the diameter of the upper baking tray 200 is 300 mm, and the size of the opening 409 is 28 mm. This embodiment can be combined with the above embodiments.

[0088] In order to further evenly distribute the heat of the upper baking tray 200, the first heating element is provided with at least four layers of heat equalizing rings, and the distances between two adjacent heat equalizing rings are equidistantly distributed, and the ratio between the equidistant value and the length of the upper baking tray 200 is 0.01 to 0.016.

[0089] The closer to the edge 202 of the upper baking tray 200, the larger the area of ​​the upper baking tray 200 is, and the closer to the central area 201 of the upper baking tray 200, the smaller the area of ​​the upper baking tray 200 is; at the same time, the first heating element radiates less heat to the edge 202 of the upper baking tray 200, and the first heating element radiates more heat to the edge 202 of the upper baking tray 200. In order to evenly distribute the heat of the upper baking tray 200, more first heating elements are set in the area close to the edge 202 of the upper baking tray 200, and fewer first heating elements are set in the area close to the central area 201 of the upper baking tray 200. Therefore, from the edge 202 of the upper baking tray 200 to the central area 201 of the upper baking tray 200, the distance between two adjacent heat equalizing rings gradually increases in an arithmetic progression. As a preferred solution, the diameter of the upper baking tray 200 is 300 mm, and the first heating element is set in 6 layers, with an arithmetic difference of 4 mm. If the equivariance value is set too large, the first heating elements are arranged relatively sparsely on the upper baking tray 200 ; if the equivariance value is set too small, the first heating elements are arranged relatively densely on the upper baking tray 200 , affecting the uniform distribution of heat on the upper baking tray 200 .

[0090] In order to further facilitate the electrical connection between the first heating element 400 and the outside, the first heating element 400 includes a head end and a tail end, the head end is located at the edge 202 of the upper baking tray 200, the head end surrounds the central area 201 of the upper baking tray 200 to the tail end, and the tail end is arranged adjacent to the head end and connected to the electrical lead-out terminal 410.

[0091] One of the leading end and the trailing end of the first heating element 400 may be disposed at the edge 202 of the upper baking tray 200 , and the other may be disposed at the central area 201 of the upper baking tray 200 .

[0092] When the head end and the tail end of the first heating element 400 are arranged at adjacent positions, the first heating element 400 can be conveniently fixed by a pressing sheet to prevent the first heating element 400 from detaching; at the same time, it is convenient for the grilling machine 100 to be provided with an electrical lead-out terminal 410 device corresponding to the head end and the tail end, thereby reducing the area occupied by the electrical lead-out terminal 410 of the grilling machine 100 and facilitating the installation and fixation of the electrical lead-out terminal 410.

[0093] In order to further arrange more first heating elements 400 on the upper baking tray 200, the upper baking tray 200 includes oppositely arranged straight edges 203, and the portion of the first heating element corresponding to the straight edge 203 is arranged parallel to the straight edge 203. By arranging the first heating element in parallel with the portion corresponding to the straight edge 203, the proportion of the first heating element on the upper baking tray 200 can be increased. The first heating element arranged relatively parallel to the straight edge 203 can be arranged to surround the central area 201 of the upper baking tray 200 to the greatest extent, increasing the number of circles of the first heating element.

[0094] In order to further increase the heat of the edge 202 of the upper baking tray 200 , the upper baking tray 200 includes oppositely disposed straight edges 203 , and a portion of the first heating element corresponding to the straight edges 203 is inclined relative to the straight edges 203 .

[0095] When heat is radiated from the first heating element toward the edge 202 of the upper baking tray 200, because the first heating element is tilted relative to the straight edge 203, the heat contacts the edge 202 of the upper baking tray 200 at a certain angle, so that only a portion of the heat will radiate toward the center of the upper baking tray 200 due to the collision with the edge 202 of the upper baking tray 200, and more heat groups will remain at the edge 202 of the upper baking tray 200, thereby increasing the heat at the edge 202 of the upper baking tray 200.

[0096] The first heating element 400 and the second heating element 500 can be configured as electric heating wires, heating tubes or heating films. In order to increase the radiant heat of the first heating element 400 and the second heating element 500 to the food and facilitate the bending of the first heating element 400 and the second heating element 500, it is preferred that the first heating element 400 and the second heating element 500 are selected as electric heating wires.

[0097] In order to further prevent food oil from splashing onto the first heating element 400 and the second heating element 500 during cooking, the upper baking tray 200 is configured as a panel. The panel configuration can also prevent the user from touching the heating wire and getting an electric shock.

[0098] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0099] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A grilling machine, characterized in that: The invention comprises an upper baking tray for baking food, and an upper cover body, wherein a first heating element is arranged between the upper baking tray and the upper cover body, and the first heating element is integrally formed, and the first heating element is arranged from the edge of the upper baking tray to the central area of ​​the upper baking tray, and the first heating element surrounds the central area of ​​the upper baking tray to form a multi-layer spacing arrangement, and the spacing gradually increases from the edge of the upper baking tray to the central area of ​​the upper baking tray.

2. A grilling machine according to claim 1, characterized in that: The first heating element includes an integrated radial section and a surrounding section, wherein a first end of the first heating element is arranged at an edge of the upper baking tray, the radial section radially extends from the first end to a central area of ​​the upper baking tray, the surrounding section reciprocates around the central area of ​​the upper baking tray from inside to outside to form a multi-layer spacing arrangement, the reciprocating position of the surrounding section is arranged adjacent to the radial section, and a second end of the first heating element is arranged at an edge of the upper baking tray.

3. A grilling machine according to claim 2, characterized in that: The grilling machine comprises an integrally formed second heating element, and the second heating element is arranged in parallel with the first heating element and spaced apart from each other.

4. A grilling machine according to claim 1, characterized in that: The first heating element includes an integrated first surround section and a second surround section, the first end of the first heating element is arranged at the edge of the upper baking tray, the first surround section surrounds the central area of ​​the upper baking tray from the outside to the inside from the first end, the first surround section forms a folded position in the central area of ​​the upper baking tray, the second surround section is arranged in parallel with the first surround section from the inside to the outside at the folded position, forming a multi-layer interval arrangement, and the second end of the first heating element is arranged at the edge of the upper baking tray.

5. A grilling machine according to claim 4, characterized in that: The grilling machine includes an integrally formed second heating element, the second heating element includes an integral third surrounding section and a fourth surrounding section, the third surrounding section surrounds the central area of ​​the upper grill plate from the outside to the inside and forms a folded position, and the second heating element is arranged in parallel with the first heating element.

6. A grilling machine according to claim 2, characterized in that: An opening is formed between the two opposite reciprocating positions, and the ratio between the length of the opening and the length of the upper baking tray is 0.07-0.

11.

7. The grilling machine according to claim 1, characterized in that: The first heating element is provided with at least four layers of heat equalizing rings, and the distances between two adjacent heat equalizing rings are equidistantly distributed, and the ratio between the equidistant value and the length of the upper baking tray is 0.01-0.

016.

8. The grilling machine according to claim 1, characterized in that: The first heating element includes a head end and a tail end, wherein the head end is located at the edge of the upper baking pan, the head end surrounds the central area of ​​the upper baking pan to the tail end, and the tail end is arranged adjacent to the head end and connected to the electrical lead-out end.

9. The grilling machine according to claim 1, characterized in that: The upper baking tray includes oppositely disposed straight edges, and the portion of the first heating element corresponding to the straight edges is disposed parallel to the straight edges.

10. The grilling machine according to claim 1, characterized in that: The upper baking tray includes oppositely disposed straight edges, and the portion of the first heating element corresponding to the straight edges is inclined relative to the straight edges.

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