Cooling structure of electric pizza oven

Abstract

The utility model discloses a cooling structure of an electric pizza oven. The oven comprises an oven body and a cooking cavity formed in the oven body, the oven body comprises a shell and a lining, the lining is arranged in the shell, the lining is provided with a heat insulation cavity and defines the cooking cavity in the heat insulation cavity, a heat dissipation air channel is arranged on the outer side of the lining, a fan is arranged in the heat dissipation air channel, and the heat dissipation air channel is provided with an air inlet in the top of an oven door of the oven body. And the radiating air duct is provided with an air outlet at the bottom of the rear end of the furnace body. The heat insulation cavity is arranged between the heat dissipation air channel and the cooking cavity, heat loss of the cooking cavity is reduced, heat conducted into the heat dissipation air channel is reduced, the temperature of the heat dissipation air channel is reduced, and it is ensured that the temperature of the surface of the shell and the temperature of the air outlet conform to the European Union safety standard.

Description

Technical Field

[0001] This utility model relates to the field of electric pizza oven technology, and in particular to a cooling structure for an electric pizza oven. Background Technology

[0002] Currently, most electric pizza ovens are exported to the European and American markets. These ovens operate at temperatures of 400-500 degrees Celsius, requiring them to meet the safety standards of the respective export regions. Therefore, existing electric pizza ovens utilize cooling ducts on the outside of the cooking cavity to remove heat radiated outwards, ensuring the surface temperature of the casing meets safety standards.

[0003] However, with the EU revising safety standards, which raises the requirements for the surface temperature of the casing and the outlet temperature of the cooling ducts, the original electric pizza ovens, due to their cooling duct design, have a significant heat loss through the ducts, leading to a drop in the cooking chamber temperature, a loss of cooking efficiency, and an inability to meet the new safety standards for the cooling duct outlet temperature. The structure of electric pizza ovens urgently needs improvement. Utility Model Content

[0004] The purpose of this invention is to provide a cooling structure for an electric pizza oven whose surface temperature and air outlet temperature meet EU safety standards.

[0005] The purpose of this utility model is achieved as follows.

[0006] The electric pizza oven cooling structure includes an oven body and a cooking chamber disposed within the oven body. The oven body includes an outer shell and an inner lining. The inner lining is disposed within the outer shell and has a heat insulation cavity. The inner lining surrounds the cooking chamber within the heat insulation layer. A heat dissipation duct is provided on the outer side of the inner lining, and a fan is provided in the heat dissipation duct. The heat dissipation duct has an air inlet at the top of the oven door and an air outlet at the bottom of the rear end of the oven body.

[0007] This invention reduces heat loss from the cooking cavity and lowers the heat transfer to the heat dissipation duct by setting a heat insulation cavity between the heat dissipation duct and the cooking cavity. This lowers the temperature of the heat dissipation duct and ensures that the surface temperature of the outer shell and the air outlet meet EU safety standards.

[0008] Furthermore, the heat dissipation air duct includes a first air duct and a second air duct. The first air duct is horizontally arranged at the top of the cooking cavity, and the first air duct and the cooking cavity are separated by the top of the inner lining and the heat insulation cavity. The second air duct is vertically arranged at the rear of the cooking cavity, and the second air duct and the cooking cavity are separated by the rear of the inner lining and the heat insulation cavity. The front end inlet of the first air duct constitutes the air inlet, the rear end outlet of the first air duct and the top inlet of the second air duct are connected by a fan, and the bottom outlet of the second air duct constitutes the air outlet.

[0009] The heat dissipation duct is reasonably designed to avoid high-temperature air outlets on the front of the furnace body, and also to make it easy to control the surface temperature of the furnace body.

[0010] Furthermore, one side of the liner is provided with an inlet and outlet that connects to the cooking cavity, and the inner side of the liner is provided with the heat insulation cavity corresponding to the inlet and outlet.

[0011] The inlet and outlet are designed to allow the pizza to enter and exit the cooking chamber, while the insulated chamber design minimizes heat loss from the cooking chamber.

[0012] Furthermore, insulation cotton is installed inside the insulation cavity.

[0013] The insulation cotton prevents heat from escaping from the cooking cavity, ensuring the heating efficiency of the cooking cavity and reducing the temperature of the outer shell and heat dissipation duct, which is beneficial for passing safety tests.

[0014] Furthermore, a first transverse air inlet gap is formed between the top surface of the furnace door and the outer shell, and a second air inlet gap is provided inside the furnace door. Both the second air inlet gap and the first air inlet gap are connected to the air inlet.

[0015] The first and second air inlet gaps draw outside air out of the heat dissipation duct, reducing the temperature of the heat dissipation duct outlet and the outer shell surface. The second air inlet gap also dissipates heat from the furnace door, reducing the furnace door surface temperature.

[0016] Furthermore, the top of the furnace door is provided with an outlet for the second air inlet gap and an inlet for the second air inlet gap, and the top of the second air inlet gap is connected to the first air inlet gap.

[0017] The second air intake gap and the first air intake gap draw in outside air from different directions.

[0018] Furthermore, a horizontally positioned baffle is provided at the bottom rear end of the furnace body corresponding to the air outlet, forming a horizontal air outlet gap between the baffle and the air outlet.

[0019] The baffle prevents foreign objects from directly entering the heat dissipation airflow.

[0020] Furthermore, a protrusion is provided at the bottom of the body corresponding to the front end of the baffle.

[0021] The hot air from the protruding part, which houses the air outlet, blows towards the front of the furnace body.

[0022] Furthermore, a water collection trough is provided inside the baffle, and the air outlet faces the water collection trough.

[0023] Water can be placed in the water tank to further reduce the temperature of the air outlet.

[0024] Furthermore, a pizza stone is installed inside the cavity, and electric heating devices are respectively installed at the top and bottom of the cooking cavity corresponding to the top and bottom surfaces of the pizza stone. The electric heating devices improve the heating efficiency of the cooking cavity and shorten the pizza cooking time.

[0025] This invention reduces heat loss from the cooking cavity and lowers the heat transfer to the cooling duct by creating a heat insulation chamber between the heat dissipation duct and the cooking cavity. This lowers the temperature of the cooling duct, ensuring that the surface temperature of the outer casing and the air outlet meet EU safety standards. The insulation cotton prevents heat from escaping from the cooking cavity, ensuring heating efficiency and reducing the temperature of the outer casing and cooling duct, which is beneficial for passing safety tests. The first and second air inlet gaps draw outside air out of the cooling duct, reducing the temperature of the air outlet and the surface of the outer casing. The second air inlet gap also dissipates heat from the oven door, lowering its surface temperature. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0027] Figure 2 This is a cross-sectional structural diagram of Example 1.

[0028] Figure 3 for Figure 2 Enlarged schematic diagram of section A in the middle.

[0029] Figure 4 This is a structural schematic diagram of Embodiment 1 (from another perspective). Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Example 1, see Figure 1-4 As shown, an electric pizza oven cooling structure includes an oven body 1, within which a cooking cavity 20 and a heat dissipation duct 4 are provided. The oven body 1 includes an outer shell 11, an inner lining 2, and an oven door 3. The inner lining 2 is disposed inside the outer shell 11 and has a heat insulation cavity 21, forming the cooking cavity 20 within the heat insulation layer. Specifically, one side of the inner lining 2 has an inlet / outlet 22 communicating with the cooking cavity 20, and the heat insulation cavity 21 is located on the inner side of the inner lining 2 corresponding to the inlet / outlet 22. The outer side of the inner lining 2 has a heat dissipation duct 4, within which a fan 5 is installed. The heat dissipation duct 4 has an air inlet 40 at the top of the oven door 3 and an air outlet 43 at the bottom of the rear end of the oven body 1. Preferably, heat insulation cotton is provided inside the heat insulation cavity 21.

[0032] In this embodiment, a pizza stone 23 is provided inside the cooking cavity 20, and electric heating devices 6 are respectively provided at the top and bottom of the cooking cavity 20 corresponding to the top and bottom surfaces of the pizza stone 23. That is, both the top and bottom surfaces of the pizza stone 23 are heated, which can improve the cooking efficiency of the pizza, but at the same time, more heat escapes from the cooking cavity 20. The electric heating device 6 is an electric heating tube.

[0033] The heat dissipation duct 4 includes a first duct 41 and a second duct 42. The first duct 41 is horizontally arranged at the top of the cooking cavity 20, and is separated from the cooking cavity 20 by the top of the inner liner 2 and the heat insulation cavity 21. The second duct 42 is vertically arranged at the rear of the cooking cavity 20, and is separated from the cooking cavity 20 by the rear of the inner liner 2 and the heat insulation cavity 21. The front inlet of the first duct 41 forms the air inlet 40, the rear outlet of the first duct 41 is connected to the top inlet of the second duct 42 by a fan 5, and the bottom outlet of the second duct 42 forms the air outlet 43. The fan 5 is a cross-flow fan.

[0034] A first horizontal air inlet gap 12 is formed between the top surface of the furnace door 3 and the outer shell 11. A second air inlet gap 31 is provided inside the furnace door 3. Both the second air inlet gap 31 and the first air inlet gap 12 are connected to the air inlet 40. The second air inlet gap 31 is vertically arranged, that is, the top of the furnace door 3 has an outlet for the second air inlet gap 31, and the top of the furnace door 3 has an inlet for the second air inlet gap 31. The top of the second air inlet gap 31 is connected to the first air inlet gap 12.

[0035] A removable baffle 7 is horizontally positioned at the bottom rear end of the furnace body 1, corresponding to the air outlet 43, forming a horizontal air outlet gap 70 between the baffle 7 and the air outlet 43. A protrusion 13 is located at the front end of the baffle 7 at the bottom of the furnace body 1. Hot air blown from the air outlet 43 is discharged outwards through the air outlet gap 70. The protrusion 13 prevents the hot air from flowing towards the front of the furnace body 1, thus preventing heat from re-entering the heat dissipation duct 4 through the second air inlet gap 31. Preferably, a water collection tank 71 is provided inside the baffle 7, with the air outlet 43 facing the water collection tank 71. Water can be placed in the water collection tank 71. When hot air is blown towards the water, the water absorbs some of the heat, further reducing the temperature of the hot air in the air outlet gap 70.

[0036] The terms used in this utility model, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are only used for distinction.

[0037] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0038] In this utility model, terms indicating direction or location such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.

[0039] Terms used in this invention, such as "approximately," "overall," "approximately," and "similar," are limiting terms used to indicate features that exist but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context.

Claims

1. An electric pizza oven cooling structure comprising an oven body and a cooking cavity provided in the oven body, characterized in that, The oven body includes an outer shell and an inner lining. The inner lining is located inside the outer shell and has a heat insulation cavity. The inner lining forms the cooking cavity within the heat insulation layer. A heat dissipation duct is provided on the outer side of the inner lining, and a fan is provided in the heat dissipation duct. The heat dissipation duct has an air inlet at the top of the oven door and an air outlet at the bottom of the rear end of the oven body.

2. The electric pizza oven cooling structure according to claim 1, characterized in that, The heat dissipation air duct includes a first air duct and a second air duct. The first air duct is horizontally arranged at the top of the cooking cavity, and the first air duct and the cooking cavity are separated by the top of the inner lining and the heat insulation cavity. The second air duct is vertically arranged at the rear of the cooking cavity, and the second air duct and the cooking cavity are separated by the rear of the inner lining and the heat insulation cavity. The front end inlet of the first air duct constitutes the air inlet, the rear end outlet of the first air duct and the top inlet of the second air duct are connected by a fan, and the bottom outlet of the second air duct constitutes the air outlet.

3. The electric pizza oven cooling structure according to claim 1, characterized in that, The inner lining has an inlet / outlet on one side that connects to the cooking cavity, and the inner side of the lining has an insulation cavity corresponding to the inlet / outlet.

4. The electric pizza oven cooling structure according to claim 3, characterized in that, Insulation cotton is installed inside the insulation cavity.

5. The electric pizza oven cooling structure according to claim 1, characterized in that, A first horizontal air inlet gap is formed between the top surface of the furnace door and the outer shell, and a second air inlet gap is provided inside the furnace door. Both the second air inlet gap and the first air inlet gap are connected to the air inlet.

6. The electric pizza oven cooling structure according to claim 5, characterized in that, The top of the furnace door has an outlet for the second air inlet gap and an inlet for the second air inlet gap. The top of the second air inlet gap is connected to the first air inlet gap.

7. The electric pizza oven cooling structure according to claim 1, characterized in that, A horizontally positioned baffle is provided at the bottom rear of the furnace body corresponding to the air outlet, forming a horizontal air outlet gap between the baffle and the air outlet.

8. The cooling structure for an electric pizza oven according to claim 7, characterized in that, The bottom of the furnace body has a protrusion corresponding to the front end of the baffle.

9. The electric pizza oven cooling structure according to claim 7, characterized in that, The baffle plate has a water collection trough, and the air outlet faces the water collection trough.

10. The electric pizza oven cooling structure according to claim 1, characterized in that, The cooking cavity is equipped with a pizza stone, and electric heating devices are installed at the top and bottom of the cooking cavity corresponding to the top and bottom surfaces of the pizza stone, respectively.

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