Electric heating barbecue oven

Abstract

The utility model discloses an electric heating barbecue oven which comprises an oven shell with the top end open, an outer heating ring is installed in the oven shell, a heat insulation interlayer is arranged between the periphery of the outer heating ring and the oven shell, an inner heating rod is arranged in the center of the oven shell, a heating ring cavity with the top end open is formed between the outer heating ring and the inner heating rod, and a skewer inserting disc is arranged at the top end of the outer heating ring. A furnace mouth penetrates through the center of the skewer inserting disc, a plurality of skewer inserting seams used for hanging skewers are formed in the skewer inserting disc and located on the edge of the furnace mouth, an opening in one end of each skewer inserting seam extends to the edge of the furnace mouth, and the top end of the furnace mouth is further covered with a furnace cover; an electrifying connector is arranged on the outer surface of the outer heating ring, an electrifying base which is located outside the furnace shell and fixed to the bottom end of the furnace shell is arranged at the bottom end of the inner heating rod, a power source controller is arranged on the outer wall of the furnace shell, and the electrifying connector and the electrifying base are both connected to the power source controller through electric wires. The heating device has the advantages of convenience in use, uniformity in heating, no smoke generation, energy conservation, environment friendliness and the like, and can be used indoors and outdoors.

Description

Technical Field

[0001] This utility model relates to barbecue grills, and more particularly to electric heating barbecue grills. Background Technology

[0002] Barbecue involves heating food with fuel and placing it close to the heat source. Traditional charcoal barbecue, however, involves cooking food over a fire until it's edible. This method has drawbacks: difficulty in igniting the charcoal, the need for frequent turning and adjusting the burning, and the production of dense smoke. It's unsuitable for home use and inconvenient for outdoor use. Current technology offers electric barbecue grills with heating rods or coils at the bottom and grilling from the top. While this solves the problems of igniting and controlling the burning, simplifying the process, it still requires frequent turning to ensure even cooking and prevent undercooked or burnt food. Therefore, someone must be present to oversee the grilling. Furthermore, the need for frequent turning necessitates an open grilling method. This open method generates smoke, not only from the food's odor but also from burnt food, making it unsuitable for indoor use. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an electric heating barbecue grill that is easy to use, heats evenly, does not produce smoke, and is suitable for both indoor and outdoor use.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: an electric heating barbecue oven, including an open-topped oven shell, an outer heating ring installed inside the oven shell, a heat insulation layer between the outer periphery of the outer heating ring and the oven shell, an inner heating rod at the center of the oven shell, and an open-topped heating ring cavity formed between the outer heating ring and the inner heating rod. A skewer insert plate is provided at the top of the outer heating ring, and an oven opening is penetrated through the center of the skewer insert plate. Several skewer slots for hanging skewers are arranged on the skewer insert plate at the edge of the oven opening, with one end of each skewer slot extending to the edge of the oven opening. An oven lid is also provided at the top of the oven opening. An electrical connector is provided on the outer surface of the outer heating ring, and an electrical socket is provided at the bottom of the inner heating rod, located outside the oven shell and fixed to the bottom of the oven shell. A power controller is provided on the outer wall of the oven shell, and the electrical connector and electrical socket are both connected to the power controller via wires.

[0005] As a preferred technical solution, a temperature sensor is provided on the inner surface of the outer heating coil.

[0006] As a preferred technical solution, the bottom inner surface of the furnace shell is provided with a downwardly inclined oil draining slope, and an oil draining hole is provided at the lower part of the oil draining slope.

[0007] As a preferred technical solution, the top of the outer heating ring is provided with a limiting ring plate, the outer periphery of the limiting ring plate abuts against the inside of the furnace shell, the inner periphery of the limiting ring plate is provided with a downward limiting stop edge, the limiting stop edge abuts against the inner periphery of the outer heating ring, and the limiting ring plate is fixed to the bottom of the furnace shell by studs.

[0008] As a preferred technical solution, the bottom inner surface of the furnace shell is provided with a limiting shoulder, and the bottom end of the outer heating coil is installed at the limiting shoulder.

[0009] As a preferred technical solution, a handle is provided on the upper part of the outer wall of the furnace shell.

[0010] As a preferred technical solution, the top of the furnace shell is also provided with an outer cover.

[0011] As a preferred technical solution, the bottom end of the furnace shell is also provided with support legs.

[0012] As a preferred technical solution, the surface of the furnace shell is provided with a wire passage hole, and the position of the power connector corresponds to the wire passage hole.

[0013] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] I. This application provides a heating ring cavity that can be heated from both inside and outside simultaneously by using an outer heating coil and an inner heating rod. The combined heating method of the inner and outer rings allows the internal heat radiation to interweave, resulting in uniform heat radiation coverage and small temperature differences at different locations within the heating ring cavity. This ensures that the food is heated evenly, eliminating the need for repeated manual turning. It is convenient to use and does not require separate management by a dedicated person. It is suitable not only for indoor use but also for outdoor use.

[0015] Second, traditional grilling temperatures can reach 200℃, with short heating times, but it is also very easy to produce smoke and burn food. This application achieves stable and slow heating of food by controlling the internal temperature and increasing the heating time, resulting in even heating inside and out. It uses the traditional braising method to heat food. During this process, the temperature is always controlled between 120℃ and 125℃, so no smoke or burning is produced. It is suitable for both indoor and outdoor use. Attached Figure Description

[0016] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 2This is an exploded structural diagram of an embodiment of the present utility model;

[0019] Figure 3 This is a top view of an embodiment of the present utility model;

[0020] Figure 4 This is a side sectional view of an embodiment of the present utility model;

[0021] Figure 5 yes Figure 4 Sectional view along the middle AA direction;

[0022] In the diagram: 1-furnace shell; 2-outer heating ring; 3-insulation jacket; 4-inner heating rod; 5-heating ring cavity; 6-skewer insert plate; 7-furnace opening; 8-skewer insert slot; 9-furnace cover; 10-power connector; 11-power socket; 12-power controller; 13-temperature sensor; 14-oil drain hole; 15-seal; 16-limiting ring plate; 17-limiting stop; 18-stud; 19-handle; 20-outer cover; 21-support leg; 22-wire passage hole; 23-skewer skewer. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0024] like Figures 1 to 5As shown, an electric heating barbecue grill includes a shell 1 with an open top. An outer heating ring 2 is installed inside the shell 1. A heat-insulating layer 3 is provided between the outer periphery of the outer heating ring 2 and the shell 1. An inner heating rod 4 is located at the center of the shell 1. A heating ring cavity 5 with an open top is formed between the outer heating ring 2 and the inner heating rod 4. The space of the heating ring cavity 5 is the space for placing food. A skewer holder 6 is provided at the top of the outer heating ring 2. The skewer holder 6 is suitable for hanging barbecue skewers 23. A grill opening 7 is provided through the center of the skewer holder 6. The diameter of the grill opening 7 is larger than the diameter of the inner heating rod 4 but smaller than the diameter of the outer heating ring 2. Several skewer slots 8 for hanging barbecue skewers 23 are arranged on the skewer holder 6 at the edge of the grill opening 7. One end of each skewer slot 8 extends to the edge of the grill opening 7. The other end of the ferrule 8 does not extend to the outer heating ring 2, and its position corresponds to the position of the heating ring cavity 5. The ferrule 8 is provided with several ferrules at intervals around the ferrule plate 6. In this embodiment, there are 16 ferrules, but the number is not limited to 16 and can be more or less. The top of the furnace opening 7 is also covered with a furnace cover 9 for heat preservation. The outer surface of the outer heating ring 2 is provided with a power connector 10. The bottom end of the inner heating rod 4 is provided with a power socket 11 located outside the furnace shell 1 and fixed to the bottom end of the furnace shell 1. The outer wall of the furnace shell 1 is provided with a power controller 12 that is connected to the power supply by a wire. The power connector 10 and the power socket 11 are both connected to the power controller 12 by wires. The power controller 12 is provided with an outer cover, which is fixed to the furnace shell 1. A power button is also provided outside the outer cover.

[0025] A temperature sensor 13 is provided on the inner surface of the outer heating ring 2. The temperature sensor 13 is used to detect the temperature inside the heating ring cavity 5. The temperature sensor 13 is located approximately halfway up the height of the heating ring cavity 5, making its detection position more accurate. Of course, multiple temperature sensors 13 can be provided for even more accurate detection results.

[0026] The inner surface of the bottom end of the furnace shell 1 is provided with a downward-sloping oil drainage slope, and an oil drainage hole 14 is provided at the lower part of the oil drainage slope to facilitate the discharge of internal oil. Oil produced by the food drips down the grill skewers 23 to the oil drainage slope and can be discharged through the oil drainage hole 14. A sealing element 15 is also provided between the inner heating rod 4 and the furnace shell 1 to prevent oil from corroding the surface of the inner heating rod 4. The sealing element 15 can be a rubber ring.

[0027] The outer heating ring 2 has a limiting ring plate 16 at its top. The outer periphery of the limiting ring plate 16 abuts against the inside of the furnace shell 1. The inner periphery of the limiting ring plate 16 has a downward limiting flange 17, which abuts against the inner periphery of the outer heating ring 2. The limiting ring plate 16 is fixed to the bottom of the furnace shell 1 by a stud 18. The inner surface of the bottom of the furnace shell 1 has a limiting shoulder, and the bottom of the outer heating ring 2 is installed at the limiting shoulder. The positioning of the outer heating ring 2 is achieved by the cooperation of the limiting flange 17 and the limiting shoulder, and is fixed by the stud 18, thus fixing the limiting ring plate 16 and the outer heating ring 2 to the furnace shell 1.

[0028] The upper part of the outer wall of the furnace shell 1 is provided with a handle 19, which facilitates handling.

[0029] The top of the furnace shell 1 is also provided with an outer cover 20 for storage.

[0030] The bottom of the furnace shell 1 is also provided with support legs 21 for support.

[0031] The surface of the furnace shell 1 is provided with a wire passage hole 22, and the position of the power connector 10 corresponds to the wire passage hole 22.

[0032] The working principle of this embodiment:

[0033] Before use, first close the oven cover 9, preheat the oven for 15 minutes, then open the oven cover 9, insert the skewers 23 with the meat on them into the heating ring cavity 5 through the oven opening 7, then insert the top of the skewer 23 into the skewer insertion slot 8, and support the handle of the skewer 23 on the skewer insertion plate 6. Repeat this process for multiple skewers 23. See the attached image for the desired state. Figure 4 Finally, the oven lid 9 is fastened to the oven opening 7 to braise and roast the food inside.

[0034] During the braising process, the temperature inside the heating ring cavity 5 is controlled between 120℃ and 125℃. When the temperature sensor 13 detects that the internal temperature is below 120℃, the heating is turned on by the power controller 12. When the temperature sensor 13 detects that the internal temperature is above 125℃, the heating is stopped by the power controller 12. In this way, the internal temperature is always controlled between 120℃ and 125℃, and the heating time is controlled at about 15 minutes. By lowering the temperature and increasing the heating time, the food is ensured to be heated evenly, not to burn, and not to produce smoke. The small amount of oil produced falls to the bottom and is discharged through the oil drain hole 14.

[0035] Within 15 minutes of heating, there is no need to flip the food. Strictly control the heating time. Once the time is up, simply remove the food. After removing one batch of food, you can add more food repeatedly for continuous grilling. When grilling is finished, turn off the power and wait for the internal temperature to cool down before wiping the internal surface with a cleaning cloth. After the equipment is used, the outer cover 20 can be fastened to the furnace shell 1 to enclose the other structures, making it easy to store and transport.

[0036] This application utilizes an outer heating ring 2 and an inner heating rod 4 to provide a heating ring cavity 5 that can be heated from both inside and outside simultaneously. The combined heating method of the inner and outer rings allows the internal heat radiation to interweave, resulting in uniform heat radiation coverage within the heating ring cavity 5 and small temperature differences at various locations. This ensures that the food is heated evenly, eliminating the need for repeated manual turning. It is convenient to use and does not require separate management by a dedicated person. It is suitable not only for indoor use but also for outdoor use.

[0037] Traditional grilling can reach temperatures of up to 200℃, with a short heating time, but it also easily produces smoke and burns food. This application achieves stable, slow heating of food by controlling the internal temperature and increasing the heating time, resulting in even heating inside and out. It uses the traditional braising method to heat food, and because the temperature is always controlled between 120℃ and 125℃, it does not produce smoke or burn food. It is suitable for both indoor and outdoor use.

[0038] The internal sealing of this application is good, and the oven lid 9 is used for heat preservation at the top, which can ensure the efficient use of internal heat and make the food reach a stable braised state.

[0039] The outer heating coil 2 is a conventional electric heating coil, a mature product, and will not be described in detail here. The power connector 10 is a structure attached to the outer heating coil 2. The power base 11 is a ceramic base. Both the power base 11 and the inner heating rod 4 are conventional electric heating coils, mature products, and will not be described in detail here. The outer heating coil 2 has a power of 400W, and the inner heating rod 4 has a power of 100W, resulting in low power consumption.

[0040] In this embodiment, the furnace shell 1, the outer heating coil 2, and other structures are all cylindrical, but they are not limited to this shape and can also be square.

[0041] In this embodiment, the heat insulation layer 3 is filled with air, which isolates the furnace shell 1 from the external heating coil 2, thus reducing heat waste. Of course, the heat insulation layer 3 can also contain other heat insulation materials, such as insulating foam.

[0042] In this embodiment, the width of the skewer insertion slot 8 can be slightly larger than the thickness of the skewer 23, ensuring that the skewer 23 passes through while improving the internal heat preservation effect.

[0043] The heating method described in this application is similar to that of digging an underground oven, lighting a fire to heat the surrounding walls, and then, after the fire goes out, placing the food inside the oven and sealing it for a certain period of time. The food can then be eaten immediately. This method can also be called "underground oven barbecue skewers," and its advantages include the following:

[0044] 1. The barbecue grill of this application not only meets the barbecue needs of consumers, but also automatically separates the grease inside, without producing oil smoke pollution, smoke, charcoal residue, or residue. It has the characteristics of being clean, hygienic, pollution-free (does not pollute other places), and environmentally friendly.

[0045] 2. It does not waste energy. It uses a combination of 300W and 150W, and the heat inside the oven circulates. The operating cost is very low. It consumes 0.7-0.8 kWh of electricity in 2 hours and can grill 100 skewers, costing less than 1 cent per skewer.

[0046] 3. Simple structure, easy to carry and portable, convenient for home use, suitable for family outings and outdoor activities, not limited by any conditions, can be used as long as there is electricity, such as 220V, 12V-72V can be converted by inverter, or can be used by solar energy and other methods.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric heating barbecue grill, comprising a shell with an open top, characterized in that: An outer heating ring is installed inside the furnace shell. A heat insulation layer is provided between the outer periphery of the outer heating ring and the furnace shell. An inner heating rod is provided at the center of the furnace shell. A heating ring cavity with an open top is formed between the outer heating ring and the inner heating rod. A skewer insert plate is provided at the top of the outer heating ring. A furnace opening is provided through the center of the skewer insert plate. Several skewer insertion slots for hanging grill skewers are arranged on the skewer insert plate at the edge of the furnace opening. One end of the skewer insertion slot extends to the edge of the furnace opening. A furnace lid is also provided at the top of the furnace opening. An electrical connector is provided on the outer surface of the outer heating ring. An electrical socket is provided at the bottom of the inner heating rod, located outside the furnace shell and fixed to the bottom of the furnace shell. A power controller is provided on the outer wall of the furnace shell. The electrical connector and the electrical socket are both connected to the power controller through wires.

2. The electric heating barbecue grill as described in claim 1, characterized in that: A temperature sensor is provided on the inner surface of the outer heating coil.

3. The electric heating barbecue grill as described in claim 1, characterized in that: The bottom inner surface of the furnace shell is provided with a downwardly sloping oil draining slope, and an oil draining hole is provided at the lower part of the oil draining slope.

4. The electric heating barbecue grill as described in claim 1, characterized in that: The top of the outer heating ring is provided with a limiting ring plate. The outer periphery of the limiting ring plate abuts against the inside of the furnace shell. The inner periphery of the limiting ring plate is provided with a downward limiting stop edge. The limiting stop edge abuts against the inner periphery of the outer heating ring. The limiting ring plate is fixed to the bottom of the furnace shell by studs.

5. The electric heating barbecue grill as described in claim 4, characterized in that: The bottom inner surface of the furnace shell is provided with a limiting shoulder, and the bottom end of the outer heating coil is installed at the limiting shoulder.

6. The electric heating barbecue grill as described in claim 1, characterized in that: A handle is provided on the upper part of the outer wall of the furnace shell.

7. The electric heating barbecue grill as described in claim 1, characterized in that: The furnace shell is also equipped with an outer cover at its top.

8. The electric heating barbecue grill as described in claim 1, characterized in that: The bottom of the furnace shell is also provided with support legs.

9. The electric heating barbecue grill as described in claim 1, characterized in that: The surface of the furnace shell is provided with a wire passage hole, and the position of the power connector corresponds to the wire passage hole.

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