JPH0420716A - Heating and cooking utensil - Google Patents

Abstract

PURPOSE:To provide a cooking utensil using heating which is capable of carrying out deodorization operation automatically neither too much nor too little after the heating and cooking by providing a control means which makes the deodorization operation work after heating and cooking for a time based on the content of heating and cooking and the time of heating and cooking. CONSTITUTION:A food is received in a heating chamber 2 and desired menu is selected by a menu switch 20 and at the same time the heating time (t) is set by a cooking time setting switch, and then a start switch is pressed down. Then, a controller 22 carries out the cooking by heating according to the selected menu. This cooking by heating is carried out for a set time (t), and when this cooking by heating is finished, the controller 22, next, calculates the time T seconds required for the operation of deodorization. After this deodorization time T is calculated, the controller 22 carries out the deodorization operation for the time T. This deodorization operation is conducted by the operation of a motor 6 for a fan 8 and by energizing a heater 12 of the deodorization device 13.

Description

Detailed Description of the Invention [Objective of the Invention] (Industrial Field of Application) The present invention provides a heating cooking device capable of deodorizing operation in which air in a heating chamber is passed through a deodorizing device by driving a fan device. Concerning vessels.

(Prior art) For example, in a microwave oven, during cooking using microwaves,
A part of the air blown from the fan device for cooling the magnetron is discharged to the outside through the heating chamber, thereby preventing dew from condensing on the see-through window of the door. However, in this case, the odor generated from the food to be cooked during cooking is directly discharged to the outside.

Therefore, it has been considered to install a deodorizing device in the exhaust path of the heating chamber to remove odors from the exhaust air.

(Problem to be solved by the invention) However, with the above configuration, the magnetron cooling fan device also stops when cooking is finished, so fresh air is sent into the heating chamber and does not contain odors. The only thing that can be done is to expel the air to the outside. As a result, odor-laden air remains in the heating chamber even after cooking, and when the door is opened, the odor hits the user and causes discomfort, and the odor may be transferred to the food to be cooked next. This causes the following problem.

In order to solve this problem, it would be possible to use a switch to operate the fan device even after cooking to drive out the odor remaining in the heating chamber. Since the operation to operate the fan device afterwards is necessary and troublesome, and the operating time must be determined by intuition, it is expected that there will be a problem that deodorization is likely to be insufficient or excessive.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a cooking device that can automatically and accurately deodorize after cooking.

[Structure of the Invention] (Means for Solving the Problems) The heating cooker of the present invention is capable of deodorizing operation in which the air in the heating chamber is passed through a deodorizing device by driving a fan device. Further, a control means is provided for causing the deodorizing operation to be performed for a time corresponding to the content of the heating cooking and the heating cooking time after the heating cooking is completed.

(Function) The amount of odor remaining in the heating chamber after cooking and the strength of the odor differ depending on the cooking time or the content of the heating process, for example, when heating rice and when grilling fish etc. There is.

However, according to the present invention of the above-mentioned means, the deodorizing operation is automatically executed by the control means after cooking, so the user does not have to perform every operation, and moreover, the deodorizing time depends on the cooking time or the cooking content. It will be held for a limited time only, so
It can deodorize just the right amount.

(Example) Hereinafter, an example in which the present invention is applied to a microwave oven will be described with reference to FIGS. 1 to 4.

First, in FIGS. 1 and 2, which schematically show the overall structure, an inner box 3 with a heating chamber 2 inside is disposed in an outer box 1. A magnetron 5 is disposed in a machine room 4 formed on the right side of this inner box 3, and a motor 6
A fan device 8 configured by attaching a propeller-shaped fan to the fan is disposed. This fan device 8 sucks outside air and blows it to the magnetron 5. A part of the air that has passed through the magnetron 5 is sent to the heating chamber 2 through a duct 9.
supplied within. The air supplied into the heating chamber 2 is discharged to the outside through an exhaust duct 10 provided on the left side of the inner box 3. A deodorizing device 13 consisting of a heater 12 for heating and activating the oxidation catalyst 11 is provided.

Further, an oven heater 14 and a circulation fan 15 are arranged on the rear side of the inner box 3, and when the circulation fan 15 is rotated by a motor 16 during oven cooking, the air heated by the heater 14 is heated. It is designed to be supplied into the chamber 2. Further, a grill heater 17 is disposed on the upper surface of the inner box 3, and the heat of this heater 17 is radiated into the heating chamber 2.

On the other hand, a door 18 for opening and closing the heating chamber 2 is pivotally provided on the front side of the outer box 1, and an operation panel 19 is also provided. In addition to various switches such as a start switch, a cancel switch, and a cooking time setting switch, the operation panel 19 is provided with a large number of menu switches 20 (only some of which are shown) as shown in FIG. A display 21 is provided. Also, on the back side of the operation panel 19, a first
As shown in the figure, a control device 22 as a control means mainly composed of a microcomputer is provided. This control device 22 controls the magnetron 5, each motor 6.16, and each heater 12, 14.17 to be turned on or off based on the operation of the various switches described above and a preset program.

Next, the operation of the above configuration will be explained with reference to the flowchart shown in FIG.

Food is stored in the heating chamber 2, a desired menu (cooking content) is selected using the menu switch 20, and a cooking time t is set using the cooking time setting switch, and the start switch is operated.

Then, the control device 22 executes heating cooking according to the selected menu (step A).

This heating cooking is performed for a set time t, and when the heating cooking is finished, the control device 22 next sets the deodorizing operation time T (seconds).
(Step B). This deodorizing operation time T is determined by the following equation.

T-(cooking time t/K)+300 In this case, K is a constant, and this constant is set as shown in the following table.

For example, if the cooking content (selected menu) is "warm" and the cooking time t is 5 minutes, the deodorizing operation time T is calculated as 6 minutes as shown in the table above. Furthermore, if the heating cooking time t is 25 minutes for "grilled food" cooking, it is calculated as 30 minutes.

After calculating the deodorizing operation time T as described above, the control device 22 executes the deodorizing operation for only one hour (step C).
. This deodorizing operation is performed by energizing the motor 6 of the fan device 8 and the heater 12 of the deodorizing device 13. During the deodorizing operation, a message to that effect is displayed on the display 21,
The user is cautioned not to open the door 18 during deodorizing operation.

Now, during this deodorizing operation, the air blown from fan 7 (
Outside air) is supplied into the heating chamber 2 through a duct 9 and exhausted to the outside through an exhaust duct 10. On the other hand, the oxidation catalyst 11 is heated and activated by the heater 12 to remove odor components from the air discharged from the heating chamber 2 to the outside. By supplying fresh outside air in this way, the odor-containing air inside the heating chamber 2 is deodorized and expelled outside, so that the inside of the heating chamber 2 is ventilated and odor-free. made into a state.

Note that even during cooking, the heater 1 of the deodorizing device 13
When the heating chamber 2 is energized, the air discharged from the heating chamber 2 is deodorized.

As described above, according to this embodiment, when heating and cooking are finished,
Subsequently, the deodorizing operation is automatically performed, so the user does not need to perform any operation to perform the sequential deodorizing operation.

Furthermore, if you are simply heating rice, it is not necessary to run the deodorizing operation for such a long time, but when grilling food such as grilled fish, the odor is so strong that you have to run the deodorizing operation for a long time. If the cooking time is long, more odors will be generated, so it is necessary to lengthen the deodorizing operation time. However, in this example, the deodorizing operation is executed for a time depending on the cooking content and cooking time, so there is no need to worry about excess or deficiency. It is possible to deodorize without any problem.

In the above embodiment, the menu is selected using the menu switch 20 and the cooking time is set using the cooking time setting switch. However, when a menu is selected using the menu switch 20 and the start switch is operated, the control device 22 The cooking time t may be configured to be automatically set depending on the menu and the amount of food.

5 and 6 show other embodiments of the invention. This embodiment differs from the previous embodiment in that the deodorizing device 23
An oxidation catalyst 24 is disposed near the oven heater 14. That is, the oxidation catalyst 24 is
4 is provided on the back side of the part that discharges the heated air into the heating chamber 2. The oven heater 14 is used as a heater for heating and activating the oxidation catalyst 24, and the circulation fan 15 is used as a fan device 25 for passing air in the heating chamber 2 to the oxidation catalyst 24. .

In this embodiment, during the deodorizing operation after cooking, the heater 14
generates heat with a small output, and the circulation fan 15 is connected to the motor 1.
6 to circulate the air in the heating chamber 2 via the oxidation catalyst 24, thereby deodorizing the air in the heating chamber 2. Note that this deodorizing operation time is set in the same manner as in the previous embodiment.

Even with this configuration, the same effects as in the embodiment described above can be achieved.

Note that the present invention is not limited to microwave ovens, but can be widely applied to general cooking devices.

[Effects of the Invention] As is clear from the above description, the present invention automatically performs the deodorizing operation after finishing cooking, so the user does not have to perform the deodorizing operation one by one. Moreover, the amount of odor remaining in the heating chamber after cooking,
Even if the strength varies depending on the heating cooking time or the cooking content, the deodorizing operation time is performed only for the time corresponding to the heating cooking time or the cooking content, so it is possible to deodorize just the right amount. It has the following effects.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention,
FIG. 1 is a cross-sectional plan view, FIG. 2 is a longitudinal side view, FIG. 3 is a front view of the operation panel, and FIG. 4 is a flow chart showing control details. 5 and 6 are a longitudinal sectional side view and a perspective view of a deodorizing device portion showing another embodiment of the present invention. In the figure, 2 is a heating chamber, 8 is a fan device, 10 is an exhaust duct, 11 is an oxidation catalyst, 12 is a heater, 13 is a deodorizing device, 2
0 is a menu switch, 21 is a display, 22 is a control device (control means), 23 is a deodorizing device, and 24 is an oxidation catalyst. Applicant Toshiba Corporation Toshiba Audio/Video Engineering Corporation

Claims (1)

[Claims] 1. A deodorizing operation is possible in which the air in the heating chamber is deodorized by passing it through a deodorizing device by driving a fan device, and after the completion of cooking, a period of time corresponding to the content of the heating cooking or the heating cooking time is possible. A heating cooking device characterized in that a control means for causing the deodorizing operation to be performed only is provided.