JPH09243096A - Oven toaster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce unevenness in toasting by providing an outlet port above a toasting net and an inlet port below the toasting net in the outlet port and the inlet port provided on the side wall of a heating chamber. SOLUTION: An inlet port 16 for sucking an atmosphere in a heating chamber 2 to a machine chamber side is formed on a partition plate 15 located below a toasting net 12. Then, the partition plate 15 located above the toasting net 12 is provided with an outlet port 17 for supplying again the atmosphere in the heating chamber 2 sucked by the inlet port 16 to the heating chamber 2. The area of the outlet port 17 is designed to be larger than that of the inlet port 16, so that the flow velocity of hot air discharged from the outlet port 17 can be lowered while a required quantity of flow rate is maintained. Thus, the surface of food can be prevented from being dried by the hot air from the outlet port 17 and a good heating state can be obtained. Accordingly, unevenness in toasting can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oven toaster for heating and cooking by circulating the atmosphere in a heating chamber.

[0002]

2. Description of the Related Art Heretofore, as an oven toaster of this type, there is one disclosed in, for example, Japanese Utility Model Laid-Open No. 4-132522. In these conventional oven toasters, the upper and lower surfaces that form the heating chamber in the main body are formed of reflecting plates,
Heating heaters are provided in the vicinity of these reflectors, and a grill is arranged between these heaters, and the heat generated by the heating heater is used to heat and cook the food placed on the grill. ing.

[0003]

However, in the oven toaster as described above, the food is heated by the direct heat from the heater and the reflected heat from the reflector. There is a problem in that the temperature difference between the near portion and the portion away from the heater is large, and the heating temperature has uneven temperature, resulting in uneven heating.

Further, since a door for opening and closing an opening for taking in and out food is provided in front of the heating chamber, the temperature of the front part of the heating chamber is apt to change, and the temperature difference between the rear part and the front part of the heating chamber is high. Was likely to occur, and therefore the food could not be heated uniformly.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an oven toaster with less uneven heating.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a heating chamber for storing food in a main body for heating and cooking, and an opening provided in front of the heating chamber for taking in and out the food are openably and closably covered. A door, a grill for placing food in the heating chamber, a heater arranged above and below the grill to raise an ambient temperature in the heating chamber, and a side wall of the heating chamber. And an air passage formed outside the heating chamber and connecting the air inlet and the air outlet, and an atmosphere in the heating chamber that is provided in the air passage and taken from the air inlet to the air outlet. A fan that circulates the atmosphere in the heating chamber by discharging the air from the heating chamber, and a motor that rotationally drives the fan, and the air outlet is arranged above the grill and the intake is arranged below the grill. It was done.

Further, at least one of the intake port and the outlet port is provided behind the heater.

The area of the air outlet is larger than the area of the air inlet. Further, the fan is composed of a propeller fan, and a part of the leeward side of the propeller fan is projected into the heating chamber through the blowout port.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An oven toaster according to an embodiment of the present invention shown in FIGS. 1 to 5 will be described in detail below. FIG. 1 is an overall perspective view of an oven toaster according to the present invention, FIG. 2 is a sectional view as seen from the heating chamber, FIG. 3 is a front sectional view, FIG. 4 is a sectional view of a machine room, and FIG.

In FIG. 1, reference numeral 1 is a main body of an oven toaster, a heating chamber 2 for accommodating food is formed therein, and a heater 11 to be described later is provided on the side of the heating chamber.
A machine room 3 is provided in which control means for controlling the circulation fan 19 and the like are arranged. An operation panel 6 provided with various operation buttons 4, a timer lever 5 and the like is provided on the front surface corresponding to the machine room. 7
Is a vertical opening type door, which is provided in front of the heating chamber and is pivotally supported so as to be openable and closable so as to cover an opening 8 for taking in and out food. 9 is a handle provided on the top of the door 7,
Reference numeral 10 is a window made of heat resistant glass for looking into the heating chamber. Next, in FIGS. 2 to 4, reference numeral 11 denotes heaters provided above and below in the heating chamber 2 for heating food. The heater 11 has a structure in which energization is controlled by a temperature control means (not shown), such as a thermostat, so that the ambient temperature in the heating chamber 2 is maintained at a predetermined temperature.

Between the heaters 11 and near the center of the heating chamber 2, the heaters 11 are provided.
A grill 12 is placed on which the food to be heated is placed. This grill has integrally rods (not shown) formed on the side wall of the heating chamber at both ends and penetrating through a long hole 13 formed in the front and rear, and the rod is movable back and forth in the long hole 13. In addition, the grill 12 is supported so as to be movable in the front-rear direction. The front end of the grill 12 is connected to the door 7, so that when the door 7 is opened, the grill 12 connected to the door moves forward so that food can be taken in and out easily. It can be done.

Reference numeral 14 is a reflecting plate which serves as a wall surface forming the heating chamber 2, and 15 is a partition plate for partitioning the heating chamber and the machine chamber.
Also serves as the side wall of the heating chamber. Reference numeral 16 denotes an intake port for sucking the atmosphere in the heating chamber 2 to the machine chamber side, which is formed in the partition plate 15 located below the grill 12. The partition plate 15 located above the grill 12 is provided with a blowout port 17 for blowing the atmosphere in the heating chamber 2 sucked by the intake port 16 back into the heating chamber 2. .

The intake port 16 is communicated with the outlet port 17 by a circulation duct 18 which serves as an air passage.
8 is configured to lead the lower atmosphere in the heating chamber 2 to the air outlet 17 through the intake port 16. Reference numeral 19 denotes a circulation fan composed of a propeller fan disposed in the circulation duct 18, and the fan 19 is rotationally driven by a motor 20 and rotates the fan 19 during heating and cooking of food so that the inside of the heating chamber 2 is rotated. The atmosphere is sucked from the intake port 16 and discharged into the heating chamber 2 through the outlet port 17. The fan 19 is arranged such that its leeward side projects from the outlet 17 of the partition plate 15 into the heating chamber 2. 21 is a protective cover for protecting the fan 19, 22
Is a fixture for fixing the motor 20 to the partition plate 15.

With this structure, food to be cooked is placed on the grill 12 in the heating chamber 2, and when the heating heater 11 is energized, the heating heater 11 heats the heating chamber. While the atmosphere in 2 is heated, the food placed on the grill 12 is heated by the heater 11
It is heated from above and below by the radiant heat that is directly emitted from and the reflected heat from the reflection plate 14. At the same time, when the fan 19 is rotationally driven by the motor 20, the atmosphere in the heating chamber 2 circulates from below to above the heating chamber 2 to stir the atmosphere in the heating chamber 2 as indicated by the arrow. Become. As a result, the atmosphere in the heating chamber 2 heated by the heater 11 is positively convected to prevent a temperature difference between the upper and lower parts of the heating chamber 2, and the temperature of the surface of the food is changed by the hot air. It becomes possible to heat uniformly and in a short time. Therefore, temperature unevenness can be prevented and heating efficiency is improved. Further, since the atmosphere in the heating chamber 2 is circulated and stirred by the fan 19, the temperature of the atmosphere in the heating chamber 2 can be accurately detected by the temperature control means.

By projecting the leeward side of the fan 19 from the partition plate 15 toward the heating chamber 2, the hot air from the fan 19 is blown radially into the heating chamber 2 as shown in FIG. As a result, hot air does not concentrate on a part of the food, and more uniform heating can be achieved. Furthermore, even if conditions such as the shape and size of the food placed on the grill 12 and the position of the food change,
With the hot air blown radially, a good heating state can be obtained.

Further, by arranging one of the intake port 16 and the outlet port 17 rearward of the heater 11, the atmospheres before and after the heating chamber are always exchanged, and the inside of the heating chamber 2 is always replaced. A temperature difference between the front and the rear is less likely to occur. As a result, even if external cool air flows into the heating chamber 2 through the gap between the door 7 and the main body 1, it is possible to minimize unevenness in the heating state of the food.

Further, the area of the air outlet 17 is set to the intake port 16
By making the area larger than the area, the flow velocity of the hot air discharged from the air outlet 17 can be reduced while keeping the flow rate as necessary, and thus the food surface can be prevented from being dried by the hot air from the air outlet 17. A good heating condition can be obtained.

[0018]

According to the present invention, the atmosphere in the heating chamber is circulated and agitated by the fan, so that the atmosphere in the heating chamber heated by the heater is positively convected and a temperature difference is generated in the heating chamber. In addition to being prevented from occurring, the temperature of the surface of the food can be heated uniformly and in a short time by hot air, and temperature unevenness can be prevented.

Furthermore, since the atmosphere in the heating chamber is circulated and agitated by the fan, the temperature of the atmosphere in the heating chamber can be accurately detected by the temperature control means, and the temperature of the atmosphere can be stabilized at a predetermined temperature. It is possible to provide an oven auster that can be controlled and in which the food is well cooked.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an oven toaster according to the present invention.

FIG. 2 is a sectional view seen from the heating chamber side.

FIG. 3 is a front sectional view

FIG. 4 is a sectional view of the machine room.

FIG. 5 is a sectional view of a main part

[Explanation of symbols]

 2 heating chamber 7 door 11 heater 12 grill 15 side wall 16 intake port 17 air outlet 18 air passage 19 fan 20 motor

Claims (4)

[Claims] 1. A heating chamber for storing food in a main body for heating and cooking, a door provided in front of the heating chamber to openably and closably cover an opening for taking in and out the food, and food in the heating chamber. And a heater disposed in the heating chamber above and below the grill to raise the atmospheric temperature in the heating chamber, and an intake port and an outlet provided on the side wall of the heating chamber. An air passage formed outside the heating chamber and connecting the intake port and the air outlet, and an atmosphere inside the heating chamber provided in the air passage and taken in from the air inlet are discharged from the air outlet to discharge the air inside the heating chamber. With a fan that circulates the atmosphere,
An oven toaster, comprising: a motor for driving the fan to rotate, wherein the air outlet is arranged above the grill and the intake is arranged below the grill. 2. The oven toaster according to claim 1, wherein at least one of the air inlet and the air outlet is provided behind the heater. 3. The oven toaster according to claim 1, wherein the area of the air outlet is larger than the area of the air inlet. 4. The fan is composed of a propeller fan, and a part of the leeward side of the propeller fan is projected into the heating chamber through the air outlet.
An oven toaster according to any one of 3 to 3.