Lower heating structure of cooking electric appliance and air frying microwave oven

Abstract

The utility model relates to the technical field of small cooking appliances, in particular to a lower heating structure of a cooking appliance and an air frying microwave oven. A heating cavity is formed in the furnace body, and the heating device is fixed to the bottom of the furnace body. The heating device comprises a bottom heating pipe and a heating pipe mounting plate, a heating pipe embedding groove is formed in the face, close to the furnace body, of the heating pipe mounting plate, and the bottom heating pipe is arranged in the heating pipe embedding groove. The air frying microwave oven can effectively solve the problem that when the air frying microwave oven heats food, the upper surface and the lower surface of the food are heated unevenly, and consequently coloring is uneven.

Description

Technical Field

[0001] The utility model relates to the technical field of small cooking appliances, in particular to a lower heating structure of a cooking appliance and an air frying microwave oven. Background Art

[0002] In recent years, microwave ovens with integrated air fryer functions have appeared on the market, which are called air fryer microwave ovens. Air fryer microwave ovens integrate air fryer components for generating hot air, thereby realizing the air frying function. In the prior art, the heating tube of the air fryer microwave oven is generally arranged at the top of the heating chamber to heat the air delivered by the fan, thereby heating the food. Since only the upper surface of the food can be heated, this will lead to differences in the heating conditions of the upper and lower surfaces of the food, and there will be obvious uneven coloring after heating, which will affect the taste of the food. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art. The utility model provides a lower heating structure of a cooking appliance and an air frying microwave oven, which can evenly heat the surface of food, shorten the heating time of food and ensure uniform coloring.

[0004] In order to solve the above problems, the utility model proposes a bottom heating structure of a cooking appliance, comprising a furnace body and a bottom heating device;

[0005] A heating chamber is provided in the furnace body, and the heating device is fixed to the bottom of the furnace body; the heating device comprises a bottom heating pipe and a heating pipe mounting plate, a heating pipe embedding groove is provided on one side of the heating pipe mounting plate close to the furnace body, and the bottom heating pipe is provided in the heating pipe embedding groove.

[0006] As an improvement of the above technical solution, the heating tube embedding groove is an annular structure, the heating tube mounting plate is provided with a heat dissipation through hole, and the heat dissipation through hole is located in the middle of the heating tube embedding groove.

[0007] As an improvement of the above technical solution, the diameter of the heat dissipation through hole is 92-97% of the heat pipe embedding groove.

[0008] As an improvement of the above technical solution, a mounting through hole is provided on the side of the heating tube mounting plate, the mounting through hole is communicated with the heating tube embedding groove, and the connecting end of the bottom heating tube extends outward through the mounting through hole.

[0009] As an improvement of the above technical solution, a top plate is provided on the top of the heating chamber, the top plate has a ventilation structure and is installed with a top heating tube, and a fan is provided on the top plate at a position corresponding to the top heating tube.

[0010] As an improvement of the above technical solution, it also includes a first thermal sensor, a second thermal sensor and a general controller;

[0011] A first mounting hole is provided on the top plate, the first thermal sensor is provided on the top plate, and the temperature measuring end of the first thermal sensor extends into the heating chamber through the first mounting hole; a second mounting hole is provided near the bottom of the side wall of the heating chamber, the second thermal sensor is installed on the side wall of the heating chamber, and the temperature measuring end of the second thermal sensor extends into the heating chamber through the second mounting hole;

[0012] The master controller is electrically connected to the first thermal sensor and the second thermal sensor respectively, the top heating pipe is electrically connected to the master controller, and the bottom heating pipe is electrically connected to the master controller.

[0013] As an improvement of the above technical solution, the top plate is provided with a plurality of waist-shaped holes spaced apart from each other to form the ventilation structure.

[0014] As an improvement of the above technical solution, a bottom plate is provided at the bottom of the furnace body, and a heat dissipation structure is formed by a plurality of waist-shaped holes spaced apart from each other.

[0015] Correspondingly, the utility model also provides an air frying microwave oven, comprising the above-mentioned lower heating structure of the cooking appliance.

[0016] The implementation of this utility model has the following beneficial effects:

[0017] The utility model includes a furnace body and a bottom heating device, a heating cavity is arranged in the furnace body, and a heating device is fixed at the bottom of the furnace body; the heating device includes a bottom heating pipe and a heating pipe mounting plate, a heating pipe embedding groove is arranged on one side of the heating pipe mounting plate close to the furnace body, and a bottom heating pipe is arranged in the heating pipe embedding groove. Compared with the prior art, the utility model arranges the heating pipe at the bottom of the furnace body, which is fixed to the outer bottom of the furnace body, and heats the bottom of the heating cavity of the furnace body, thereby heating the air inside the heating cavity. Since the heating source is located below the bottom of the food, the problem of uneven heating of the upper and lower surfaces of the bottom of the food can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a lower heating structure of a cooking appliance according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation of the bottom heating pipe in one embodiment of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of a furnace body according to an embodiment of the utility model;

[0021] Figure 4It is a schematic diagram of the installation of the top heating pipe in one embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0023] See also Figures 1 to 4 As shown, the embodiment of the utility model provides a bottom heating structure of a cooking appliance, comprising a furnace body 1 and a bottom heating device 2;

[0024] The embodiment of the utility model improves the heating structure of the cooking appliance so that the lower surface of the food can be heated.

[0025] Specifically, a heating chamber 11 is provided in the furnace body 1, and the heating device 2 is fixed to the bottom of the furnace body 1; the heating device 2 includes a bottom heating tube 22 and a heating tube mounting plate 21, and a heating tube embedding groove 221 is provided on a side of the heating tube mounting plate 21 close to the furnace body 1, and the bottom heating tube 22 is provided in the heating tube embedding groove 221.

[0026] Compared with the prior art, the utility model arranges the heating pipe at the bottom of the furnace body 1, which is fixed to the outer bottom of the furnace body 1, and heats the bottom of the heating chamber 11 of the furnace body 1, thereby heating the air inside the heating chamber 11. Since the heating source is located below the bottom of the food, the problem of uneven heating of the upper and lower surfaces of the bottom of the food can be solved.

[0027] Preferably, the heat pipe embedding groove 211 is an annular structure, and a heat dissipation through hole 212 is provided on the heat pipe mounting plate 21, and the heat dissipation through hole 212 is located in the middle of the heat pipe embedding groove 211. The setting of the heat dissipation through hole 212 can dissipate the excess heat at the bottom of the furnace body in time to avoid excessive accumulation of heat at the bottom. Among them, the diameter of the heat dissipation through hole 212 is 92-97% of the heat pipe embedding groove 211. When it is less than 92%, the heat dissipation through hole 212 is too small, which will affect the heat dissipation at the bottom of the furnace body 1; when it is greater than 97%, it will increase the difficulty of processing.

[0028] Preferably, a mounting through hole 213 is provided on the side of the heating tube mounting plate 21, the mounting through hole 213 is connected to the heating tube embedding groove 211, and the connecting end of the bottom heating tube 22 extends outward through the mounting through hole 213. The mounting through hole 213 is provided to facilitate the wiring of the bottom heating tube 22.

[0029] Preferably, a top plate 12 is provided at the top of the heating chamber 11, the top plate 12 has a ventilation structure 13 and is equipped with a top heating pipe 14, and a fan 15 is provided at a position corresponding to the top heating pipe 14. In this embodiment, a top heating pipe 14 is provided at the bottom of the heating chamber 11, so that the embodiment can heat the upper and lower surfaces of the food at the same time. This can improve the heating efficiency of the food and make the food more evenly heated.

[0030] More preferably, it also includes a first thermal sensor 4, a second thermal sensor 5 and a general controller;

[0031] The top plate 12 is provided with a first mounting hole 121, the top plate 12 is provided with the first thermal sensor 4, the temperature measuring end of the first thermal sensor 4 passes through the first mounting hole 121 and extends into the heating chamber 11; the side wall of the heating chamber 11 is provided with a second mounting hole 111 near the bottom, the second thermal sensor 5 is installed on the side wall of the heating chamber 11, and the temperature measuring end of the second thermal sensor 5 passes through the second mounting hole 111 and extends into the heating chamber 11;

[0032] The master controller is electrically connected to the first thermal sensor 4 and the second thermal sensor 5 respectively, the top heating tube 14 is electrically connected to the master controller, and the bottom heating tube 22 is electrically connected to the master controller.

[0033] It should be noted that, since the bottom heating tube 22 of this embodiment heats the outer bottom of the furnace body 1, the heating time is relatively long and the top heater 14 and the bottom heater 22 need to be controlled separately. Therefore, a first thermal sensor 4 is provided on the top plate 12 and a second thermal sensor 5 is provided on the side wall of the heating chamber 11. When working, the bottom heater 5 starts working to heat the air in the heating chamber 11. When the second thermal sensor 5 and the first thermal sensor 4 detect a predetermined temperature, they are fed back to the main controller, and the main controller controls the top heating tube to work.

[0034] Preferably, the top plate 12 is provided with a plurality of waist-shaped holes spaced apart from each other to form the ventilation structure 13 .

[0035] Preferably, a bottom plate 16 is provided at the bottom of the heating chamber 11, and the bottom plate 16 is provided with a plurality of waist-shaped holes spaced apart from each other to form a heat dissipation structure.

[0036] Correspondingly, an embodiment of the utility model further provides an air fryer microwave oven, comprising the above-mentioned lower heating structure of the cooking appliance.

[0037] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A lower heating structure of a cooking appliance, characterized in that: It includes a furnace body and a bottom heating device; A heating chamber is provided in the furnace body, and the heating device is fixed to the bottom of the furnace body; the heating device comprises a bottom heating pipe and a heating pipe mounting plate, a heating pipe embedding groove is provided on one side of the heating pipe mounting plate close to the furnace body, and the bottom heating pipe is provided in the heating pipe embedding groove.

2. The lower heating structure of a cooking appliance according to claim 1, characterized in that: The heating tube embedding groove is an annular structure, and a heat dissipation through hole is provided on the heating tube mounting plate, and the heat dissipation through hole is located in the middle of the heating tube embedding groove.

3. The lower heating structure of a cooking appliance according to claim 2, characterized in that: The diameter of the heat dissipation through hole is 92-97% of the heat pipe embedding groove.

4. The lower heating structure of a cooking appliance according to claim 1, characterized in that: A mounting through hole is provided on the side of the heating tube mounting plate, the mounting through hole is communicated with the heating tube embedding groove, and the connecting end of the bottom heating tube extends outward through the mounting through hole.

5. The lower heating structure of a cooking appliance according to claim 1, characterized in that: A top plate is arranged on the top of the heating chamber. The top plate has a ventilation structure and is installed with a top heating pipe. A fan is arranged on the top plate at a position corresponding to the top heating pipe.

6. The lower heating structure of a cooking appliance according to claim 5, characterized in that: Also includes a first thermal sensor, a second thermal sensor and a general controller; A first mounting hole is provided on the top plate, the first thermal sensor is provided on the top plate, and the temperature measuring end of the first thermal sensor extends into the heating chamber through the first mounting hole; a second mounting hole is provided near the bottom of the side wall of the heating chamber, the second thermal sensor is installed on the side wall of the heating chamber, and the temperature measuring end of the second thermal sensor extends into the heating chamber through the second mounting hole; The master controller is electrically connected to the first thermal sensor and the second thermal sensor respectively, the top heating pipe is electrically connected to the master controller, and the bottom heating pipe is electrically connected to the master controller.

7. The lower heating structure of a cooking appliance according to claim 5, characterized in that: The top plate is provided with a plurality of waist-shaped holes spaced apart from each other to form the ventilation structure.

8. The lower heating structure of a cooking appliance according to claim 1, characterized in that: A bottom plate is provided at the bottom of the furnace body, and a heat dissipation structure is formed by a plurality of waist-shaped holes spaced apart from each other.

9. An air frying microwave oven, characterized in that: The invention comprises a lower heating structure of a cooking appliance as described in any one of claims 1 to 7.

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