JPH0861676A - Heating cooking apparatus - Google Patents

Abstract

PURPOSE: To provide a heating cooking apparatus which can inform a use of filling of steam in a heating chamber. CONSTITUTION: The steam generated from a material 2 to be heated is exhausted from an exhaust hole 10 formed at a heating chamber 4. On the other hand, a humidity sensor 12 is provided in the hole 10 thereby to detect the humidity in the chamber. An inform controller compares the humidity in the chamber detected by the sensor 12 with the predetermined value of a predetermined humidity, and controls to display it on a display unit 7 provided on the front of a body when the humidity in the chamber exceeds the predetermined value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker such as a microwave oven, and more particularly to a heating cooker having an exhaust hole for exhausting steam in a heating chamber.

[0002]

2. Description of the Related Art In a conventional cooking device such as a microwave oven, an object to be heated is housed in a heating chamber for heating, and steam generated from the heated object is discharged through an exhaust hole formed in the heating chamber. I try to exhaust it from.

[0003]

However, in such a conventional heating cooker, a large amount of steam is generated during cooking depending on the type of the object to be heated. As described above, a large amount of steam is generated from the object to be heated. When this occurs, the steam cannot be exhausted sufficiently, and the steam may fill the heating chamber.

When the heating chamber is thus filled with steam, when the cooking is completed and the door of the heating chamber is opened, the object to be heated becomes invisible due to the steam, and the glasses are further worn. In this case, the glasses become cloudy, which makes it difficult to take out the object to be heated.

Therefore, the present invention has been made in order to solve such a problem, and an object thereof is to provide a heating cooker capable of informing that the heating chamber is filled with steam. To do.

[0006]

According to a first aspect of the present invention, an object to be heated is housed in a heating chamber provided inside the main body for heating, and steam generated from the heated object is heated. In a heating cooker configured to exhaust air from an exhaust hole formed in a chamber, a humidity sensor provided in the exhaust hole to detect the humidity in the heating chamber, and the humidity detected by the humidity sensor are predetermined. And a notification control device for activating the notification means for notifying that the steam is filled in the heating chamber when the humidity in the heating chamber exceeds the predetermined value. It is a thing.

According to the invention of claim 2, as the notification means,
A display unit is provided on the front surface of the main body, and the display is controlled by the notification control device when the humidity in the heating chamber exceeds the predetermined value.

[0008]

According to the first aspect of the invention, the steam generated from the object to be heated is exhausted from the exhaust hole formed in the heating chamber, and the humidity sensor is provided in the exhaust hole to detect the humidity in the heating chamber. To Then, the notification control device compares the humidity inside the heating chamber detected by the humidity sensor with a predetermined value of the predetermined humidity, and when the humidity inside the heating chamber exceeds the predetermined value, the heating chamber is filled with steam. The notifying means for notifying that the user is operating is activated.

According to the second aspect of the present invention, a display unit is provided on the front surface of the main body as the notification means, and the notification control device controls the display of the display unit when the humidity in the heating chamber exceeds a predetermined value to fill the heating chamber with steam. Notify that you are doing it.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a microwave oven which is an example of a heating cooker according to an embodiment of the present invention.

In the figure, reference numeral 1 denotes a microwave oven main body (hereinafter referred to as main body), and an object to be heated 2 is placed inside the main body 1.
And a heating chamber 4 having a front door 3 which is openable and closable and has a heat-resistant glass 3a attached to the center thereof. The heating chamber 4 is provided with a turntable 6 which is attached to the rotating shaft 5a of the geared motor 5 and on which the object 2 to be heated is placed and rotated.

On one side of the front surface 1a of the main body, a cooking menu, cooking time, and the like are displayed, and the heating chamber is filled with steam by being turned on by, for example, a display control signal from a control unit described later. A display device 8 provided with a display unit 7 which is a notification unit for notifying, a cooking start switch 9, and the like are provided.

On the other hand, an exhaust hole 1 is provided in an upper portion of a side wall 4a of the heating chamber 4 opposite to the side where the display device 8 and the like are provided.
0 is formed, and the steam generated from the object to be heated 2 heated by the high frequency from the magnetron 11 is exhausted from the exhaust hole 10 to the outside of the heating chamber 4 as shown by the arrow.

By the way, the exhaust hole 10 is provided with a humidity sensor 12 for detecting the humidity of the heating chamber 4. Here, since an amount of steam corresponding to the amount of steam generated from the object to be heated 2 passes through the exhaust hole 10, by providing the humidity sensor 12 in the exhaust hole 10 in this manner, the humidity inside the heating chamber Humidity) can be detected.

On the other hand, the humidity information from the humidity sensor 12 is input as a voltage signal, for example, to the control unit 13 shown in FIG. Here, the control unit 13 is the main body 1
While controlling the heating and cooking operation, the humidity information from the humidity sensor 12 is input to the determination unit 14, and the determination unit 14 determines the indoor humidity and a predetermined value of the predetermined humidity (hereinafter referred to as the predetermined humidity), for example, When the door 3 is opened, it is determined whether or not the indoor humidity is higher than a predetermined humidity by comparing it with the value of the humidity when the eyeglasses are fogged with steam.

Further, when the indoor humidity is compared with the predetermined humidity in this way, for example, as shown in FIG. 3, the cooking start switch 9 is pressed at T0 to start the operation of the magnetron 11, and at T1, the indoor humidity is changed. If the specified humidity is exceeded,
That is, in the figure, when the voltage V indicating the indoor humidity exceeds the constant reference voltage Vs indicating the predetermined humidity, the determination unit 14
Outputs a determination signal S1 to the notification control unit 15, and the notification control unit 15 outputs the display control signal S2 to the display unit 7 of the display device 8 in response to the determination signal S1 to display the display unit 7.
Is lit up. In this way, the control unit 13 plays a role as a notification control device that lights up the display unit 7 and notifies that the heating chamber is filled with steam when the indoor humidity exceeds a predetermined humidity. ing.

Since the user can know that the heating chamber is filled with steam by lighting the display unit 7 in this way, the display unit 7 can be removed when the object 2 to be heated is taken out. The front door 3 should be opened after 7 disappears, or the front door 3 should be opened without touching the face of the body 1 even in a hurry, and the object 2 to be heated is taken out after the steam in the heating chamber is discharged to the outside. As a result, the object to be heated 2 can be easily taken out without being hindered by steam.

By the way, in the figure, at the time of T2, the heating cooking time which is set in advance before the cooking is performed is
Reference numeral 3 indicates the time when the front door 3 is opened after the heating and cooking time T2 has passed. The control unit 13 indicates that the indoor humidity exceeds the predetermined humidity even after the heating and cooking time T2 has elapsed. In this case, the comparison and determination of the indoor humidity and the predetermined humidity are continuously performed.

Usually, after the heating and cooking time T2 has elapsed, the operation of the magnetron 11 is stopped, and when the front door 3 is opened at T3, the steam in the heating chamber flows out. Suddenly drops and becomes lower than the predetermined humidity, and when the indoor humidity becomes lower than the predetermined humidity in this way, the determination signal S1 is not output from the determination unit 14, and the control unit 13 turns off the display unit 7. ing.

In the figure, when the room humidity temporarily exceeds the predetermined humidity as shown by the broken line and the room humidity falls below the predetermined humidity before the heating and cooking time T2 elapses, the heating and cooking time T2. When the above condition has elapsed, the comparison / determination between the indoor humidity and the predetermined humidity is stopped.

Next, the humidity notification operation of the thus constructed microwave oven will be described with reference to the flow chart shown in FIG.

When the cooking start switch 9 is pressed after the object 2 to be heated is stored in the heating chamber 4, the control unit 13 operates the magnetron 11 to start heating and cooking (process 5).
0). Then, after starting the cooking in this manner, the humidity information from the humidity sensor 12 is input to the determination unit 11 at a constant timing to determine whether the indoor humidity is higher than a predetermined humidity (determination 51).

When it is determined that the indoor humidity is equal to or higher than the predetermined humidity (Y in determination 51), the determination unit 14
Outputs a determination signal S1 to the notification control unit 15, and the notification control unit 15 outputs the display control signal S2 to the display unit 7 of the display device 8 according to the determination signal S1 to turn on the display unit 7. It is displayed (process 52). It should be noted that the control unit 13 determines whether or not the heating and cooking time T2 set before heating and cooking has elapsed after the display unit 7 has been lit and displayed (determination 53), and the heating and cooking time T2 has elapsed. If not (N in decision 53), it is continuously determined whether or not the indoor humidity is higher than a predetermined humidity (decision 51).

On the other hand, when the heating and cooking time T2 elapses after continuing the determination of the indoor humidity in this way (Y in determination 53), the operation of the magnetron 11 is stopped and the heating and cooking is terminated (process 54). In addition, when the display unit 7 is lit and displayed when the cooking time T2 elapses in this way, the user may open the front door 3 after the display unit 7 disappears, or when the user hurries up. The front door 3 is opened so that the face does not come close to the main body 1, the steam in the heating chamber is discharged to the outside, and then the object to be heated 2 is taken out.

Even after the cooking time T2 has passed,
When the display unit 7 is still lit and displayed (determination 5
(Y of 5), the humidity information from the humidity sensor 12 is continuously input to the determination unit 11, and it is determined whether or not the indoor humidity is a predetermined humidity (determination 56). And the cooking time T
After the lapse of 2, the indoor humidity is drastically lowered due to the operation stop of the magnetron 11 and the opening of the front door 3 to become the predetermined humidity or less, and when the determination unit 14 determines this (N in determination 56),
The determination signal S1 is no longer output from the determination unit 14, and the control unit 13 turns off the display unit 7 (process 57).

As described above, the humidity sensor 12 is provided in the exhaust hole 10.
By providing, the humidity in the heating chamber can be detected. Then, the control unit 13 compares the indoor humidity detected by the humidity sensor 12 with a predetermined humidity, and when the indoor humidity exceeds a predetermined value, the display unit 7 is lit and displayed to fill the heating chamber with steam. The user can be informed of what is being done.

In the above description, it is described that the indicator 7 that is lit and displayed is used as the notification means, but the present invention is not limited to this, and when the indoor humidity exceeds a predetermined value, For example, after the cooking time T2 has elapsed,
A sound such as a buzzer may be used to notify that the heating chamber is filled with steam.

[0029]

As described above, according to the present invention, the humidity in the heating chamber detected by the humidity sensor provided in the exhaust hole is compared with the predetermined value of the predetermined humidity, and the humidity in the heating chamber is compared with the predetermined value. If it exceeds, by activating the notification means,
It is possible to inform that the heating chamber is filled with steam.

Thus, the user can know that the heating chamber is filled with steam, and when the object to be heated is taken out, the front door is opened after the display unit, which is an example of the notification means, disappears. Even if you hurry, do not bring your face close to the main body even if you are in a hurry, open the front door to discharge the steam in the heating chamber before taking out the heated object, so that the heated object is not disturbed by the steam Can be taken out easily.

[Brief description of drawings]

FIG. 1 is a front view of a microwave oven as an example of a heating cooker according to an embodiment of the present invention.

FIG. 2 is a diagram showing a part of a configuration of a control unit of the microwave oven.

FIG. 3 is a diagram showing changes in humidity in the heating chamber of the microwave oven.

FIG. 4 is a flowchart showing a humidity notification operation of the microwave oven.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microwave oven main body 2 Heated object 4 Heating chamber 7 Display part 10 Exhaust hole 12 Humidity sensor 13 Control part 14 Discrimination part

Claims (2)

[Claims] 1. An object to be heated is housed in a heating chamber provided inside the main body for heating, and vapor generated from the heated object is exhausted from an exhaust hole formed in the heating chamber. In the heating cooker, the humidity sensor provided in the exhaust hole for detecting the humidity in the heating chamber is compared with the humidity detected by the humidity sensor and the predetermined value of the predetermined humidity, and the heating is performed. A heating cooker, comprising: an informing control device that activates informing means that informs that the heating chamber is filled with the steam when the indoor humidity exceeds the predetermined value. 2. The display means, as the notification means, is provided on the front surface of the main body, the display section being display-controlled by the notification control device when the humidity in the heating chamber exceeds the predetermined value. The cooker described.