JPH10185200A - Convection oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a convection oven which is easy to use with a wider and neat inside of a heating storage while preventing uneven baking of foods by evenly sending hot air into the heating chamber. SOLUTION: In a convection oven 1, air is sucked by a fan 11 from a suction port 13 at the central part of an inner wall 15. The air from the fan 11 is heated by a heating tube 12 and sent to both sides of a heating chamber 3 through a duct 16 to be blown into the storage from a louver-shaped opening 19 on both side walls 17. The opening 19 is located on the top surface of each stage of rack support parts 21 where a hotel pan is set thereon to circulate the hot air to each stage uniformly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a convection oven having a fan for forcibly circulating hot air in a heating chamber. In particular, the present invention relates to a convection oven capable of uniformly sending hot air into a heating chamber and preventing uneven baking of food.

[0002]

2. Description of the Related Art An oven is a device that puts food in a refrigerator and heats it with radiant heat and convective heat. The convection oven further has a fan for forcibly circulating hot air in the oven, and the oven circulating fan improves the cooking speed and uniforms the temperature distribution in the oven to improve the baking performance. It is. Set and use the cooking cabinet temperature, cooking time, etc. Depending on the device, in addition to the oven cooking function, it has a steam cooking function, a simultaneous cooking function of the oven and steam, and the like. A rack for setting the hotel bread on which the food is to be placed is installed in the convection oven and used. The rack is removable.

FIG. 2 is a front sectional view showing the structure of a typical conventional steam convection oven. The steam convection oven 101 shown in FIG. 1 is mainly configured with a rectangular parallelepiped heating chamber 103. A heating device 104 having a circulation fan 123 in the refrigerator, a burner 115, and the like is provided on a side (left side in the drawing) of the heating refrigerator 103 with a wire mesh filter 121 therebetween. The general heating of the inside atmosphere is performed by the heater 113. Heater 11
3 includes a burner 115 and a number of heating tubes 105 through which the combustion exhaust gas of the burner 115 passes. Burner 115
Then, city gas and combustion air are introduced and burned.
This combustion exhaust gas is sent from the heating device 113 to a number of heating tubes 105 branched upward. In the electric steam convection oven, an electric heater is provided instead of the heating tube 105.

[0004] The heating tube 105 is arranged so as to surround the centrifugal fan 123. The fan 123 is driven by a motor 109 arranged outside the refrigerator. The internal circulation air blown from the fan 123 in the outer peripheral direction is heated when it hits the heating pipe 105. Then,
The circulating air is returned into the heating chamber 103 from the blowing passages (the upper blowing passage 119, the lower blowing passage 125, and the illustrated side blowing passage) around the filter 121. The air in the heating chamber 103 is sucked through the filter 121 toward the center of the fan 123, blows out from the outer periphery of the fan 123, and circulates in the chamber. Note that the combustion exhaust gas that has passed through the heating pipe 105 is discharged outside through an exhaust hood.

[0005] On the other hand, steam is stored in a steam generator 10.
7 (illustrated to the left of fan 123). The steam generator 107 includes a tank for storing water and a burner 111 for heating the tank. The water in the tank is heated to become steam, and is blown into the storage from the steam blowing pipe 108. The blown steam is supplied into the heating chamber 103 together with the air coming out of the fan 123.

In the heating chamber 103, a square hotel pan 14
7 is placed thereon. The hotel pan 147 is inserted into a rail 143 of a hotel pan rack arranged along the side wall of the heating cabinet 103. The hotel pan rack 141 is removable. The food 127 in the heating chamber 103 is heated by convective heat of circulating air and steam, and radiant heat from the wall of the cooking chamber. The temperature in the refrigerator and the cooking time can be set by the cook.
The hotel bread rack 141 is installed by aligning the legs of the rack 141 with the rail 149 (separate from the side rail 143) at the bottom of the heating cabinet 103.

FIG. 3 is a view schematically showing a flow of hot air in a refrigerator in a conventional general convection oven. (A) is a perspective view, (B) is a plan view. As shown in this drawing, the air in the interior 103 is sucked from a suction port (wire mesh) 121 on the front surface of the fan 123 and is pushed out around the fan 123, from both sides of the back wall (fan casing) 124 or from above and below. It is blown into 103.

[0008]

The above-mentioned conventional convection oven has the following problems. The sirocco fan is rotated in one direction to make the inside of the refrigerator uniform, but a partial deflection of the blown air occurs, causing uneven grilling in a portion where the hot air hits the food and a portion where the hot air does not hit much. Suction also occurs with respect to the blowout due to the circulation of the fan, but at that time, the hot air is concentrated at the center of the fan, causing uneven grilling.

The rack is removable, and the rack is installed with the legs along the rail at the bottom of the compartment. Further, when washing the inside of the refrigerator with water, it is difficult to use it in a dry kitchen or the like because water hits a rack and splashes are generated.

[0010] The present invention is a convection oven having a fan for forcibly circulating hot air in a heating chamber, in which hot air can be sent uniformly into the heating chamber, and uneven baking of food can be prevented. It is intended to provide a convection oven. Another object of the present invention is to provide a convection oven that has a large interior, is easy to use, and is clean.

[0011]

To solve the above-mentioned problems, a convection oven according to a first aspect of the present invention is a convection oven including a heating cabinet for heating food and a fan for sending hot air into the heating cabinet; It is characterized by having a duct for guiding hot air to both sides of the heating cabinet.

A convection oven according to a second aspect of the present invention is a convection oven having a heating cabinet for heating food and a fan for sending hot air into the heating cabinet; a rack for a hotel pan set on a side wall of the heating cabinet. Is formed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific description will be given with reference to the drawings. FIG. 1 is a diagram illustrating a convection oven according to one embodiment of the present invention. (A) is a perspective view, (B)
Is a plan view. In this convection oven 1,
A fan 11 is placed on the back side of the heating cabinet 3 facing the door 5. The left side of the heating chamber 3 is an equipment space 7 in which control boards and the like are installed.

The fan 11 at the center of the back wall 15 of the heating cabinet 3
Is provided with a suction port 13 to which a wire mesh is attached. There is a little space between the back wall 15 and the outer wall 14 of the main body (casing), and the duct 16 is a hot air passage. The duct 16 also extends behind the side walls 17 of the heating chamber 3. Heating pipes 12 through which the combustion gas passes are arranged on both sides of the fan 11 of the duct 16.

The side wall 17 is formed in a rattle shape having a number of horizontally long openings 19 extending in the horizontal direction. On the lower side of the opening 19, a rack supporting portion 21 protruding inward of the heating chamber 3 is formed. In the case of this embodiment, an opening 19 is opened in the steel plate forming the side wall 17, and the plate material of the opening 19 is moved inward along the lower side of the opening 19.
It is bent at 0 °.

In the convection oven shown in FIG. 1, the fan 11 sucks air in the refrigerator from the suction port 13 at the center of the back wall 15 and sends it out to both sides of the fan 11. Then, the wind coming out of the fan 11 is heated by the heating pipe 12. This hot air is sent to both sides of the heating chamber 3 through the duct 16 and blows out into the chamber from the gusset-shaped openings 19 of the side walls 17. The opening 19 is provided on the upper surface of the rack supporting portion 21 of each stage for setting the hotel pan, and circulates the hot air to each stage without deflection. The side wall of the convection oven according to the present embodiment functions as a duct for improving circulation of hot air, and also has a rack function that does not require a conventional bottom-type rack.

[0017]

As is apparent from the above description, the convection oven of the present invention has the following effects. By blowing hot air from both sides to each part in the refrigerator, it is possible to eliminate a difference in the degree of grilling at each position in the refrigerator and uneven grilling. By eliminating the installation type rack, the inside of the refrigerator is cleaner and the cleaning performance is improved. In addition, there is no water splash, such as when washing in the refrigerator, so you do not have to worry about the dry kitchen. If the rack function is shared with the side wall of the gusset-like opening, the position of the opening of the hot-air blowout and the rack can be ensured, and the hot air can be more appropriately sent into the storage.

[Brief description of the drawings]

FIG. 1 is a view showing a convection oven according to one embodiment of the present invention. (A) is a perspective view, (B) is a plan view.

FIG. 2 is a front sectional view showing a configuration of a conventional typical steam convection oven.

FIG. 3 is a view schematically showing a flow of hot air in a refrigerator in a conventional general convection oven. (A) is a perspective view, (B) is a plan view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Convection oven 3 Heater 5 Door 7 Equipment space 11 Fan 12 Heating pipe 13 Suction port 14 Outer wall 15 Back wall 16 Duct 17 Side wall 19 Opening 21 Rack support

Claims (7)

[Claims] 1. A convection oven provided with a heating cabinet for heating food and a fan for sending hot air into the heating cabinet; having a duct for guiding the hot air to both sides of the heating cabinet. oven. 2. A fan and a suction port for the fan are provided at the back side of the heating chamber, and the duct is provided so as to extend from the periphery of the suction port to the back side of the heating chamber and further to both sides of the heating chamber. The convection oven according to claim 1, wherein 3. The convection oven according to claim 1, wherein a side wall of the heating chamber has a gusset-like opening of hot air blown from the duct into the heating chamber. 4. The convection oven according to claim 3, wherein said gull-like opening comprises a plurality of horizontally long openings extending in a horizontal direction. 5. A convection oven having a heating cabinet for heating food, and a fan for sending hot air into the heating cabinet, wherein a rack for a hotel pan set is formed on a side wall of the heating cabinet. Convection oven. 6. The convection oven according to claim 1, wherein a rack for a hotel pan set is formed on a side wall of the heating cabinet. 7. A side wall of the heating chamber has a gusset-like opening for hot air blown from the duct into the heating chamber, and a rack for a hotel pan set is formed on the side wall of the heating chamber. 3. The convection oven according to claim 1, wherein the opening comprises a plurality of horizontally long openings extending in a horizontal direction, and the openings are provided for each stage of the rack.