JP2920797B2 - Cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker, and more particularly to a structure in which a door for opening and closing a heating chamber can be closed even after an object to be heated is moved out of the heating chamber by a moving table. When starting the cooking by preheating the heating chamber or repeating the cooking, regardless of the information output from the moving table storage detection device and the door closing detection device, only the electric heat energy generation device is necessary. In operation, maintenance of a high-temperature atmosphere in the heating chamber and prevention of unnecessary emission are prevented. However, even if the door is closed, the microwave energy generator is not operated when the moving table is moving outside the heating chamber, so that so-called baking does not occur. It has improved practicality and safety in consideration of energy saving.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. Heisei 2 discloses a heating cooker in which a turntable is rotated by a driving device and can be moved into and out of a heating chamber so that an object to be heated can be easily placed in and taken out of the heating chamber. No. 161214, for example.

[0003]

In the above-mentioned prior art,
If the driver attempts to close the door with the moving table moved outside the heating chamber, the door hits the moving table and the heating chamber cannot be closed. In addition, when the door is in the open state, all the heating means cannot be drive-controlled, so that when the heating chamber is preheated and cooking is started or when heating cooking is repeatedly performed, release of the high-temperature atmosphere in the heating chamber is prevented. And there was a problem on energy saving.

[0004]

SUMMARY OF THE INVENTION According to the present invention, the door can be closed even when the moving table is outside the heating chamber as well as when the moving table is inside the heating chamber, and the moving table is moved outside and inside the heating chamber. Regardless of the state and the open / closed state of the door, the heating means composed of a hot air generator and an electric heat energy generator such as an electric heater can be driven and controlled to prevent unnecessary lowering of the heating room temperature. Regarding the microwave energy generator, even if the door is closed, it does not operate when the movable table is moving out of the heating chamber, so that so-called baking does not occur, and as a cooker, It improves practicality and safety.

[0005]

[Function] The door can be opened and closed even when the moving table is moved outside the heating chamber as well as when the moving table is moved outside the heating chamber. By operating the heating means constituted by an electric heat energy generating device such as a heater, unnecessary lowering of the temperature of the heating chamber is prevented, and in the case of the microwave energy generating device, even if the door is closed, the moving table is outside the heating chamber. Does not work if

[0006]

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

FIG. 1 is a block diagram showing an embodiment of the cooking device according to the present invention. In FIG. 1, reference numeral 1 denotes a heating chamber for storing an object to be heated, and 2 denotes a heating means for generating energy for heating the object to be heated in the heating chamber 1, such as a hot air generator or an electric heater. It is constituted by a combination of an electrothermal energy generator (2a) and a microwave energy generator (2b) comprising a well-known magnetron or the like. Reference numeral 3 denotes a temperature detecting means for detecting the temperature in the heating chamber 1, which detects the temperature in the heating chamber 1 by a non-contact method using a thermistor or the like and outputs the information. Reference numeral 4 denotes a movable table on which an object to be heated is placed. Reference numeral 5 denotes a movable table storage detecting device for detecting a state in which the movable table 4 is stored in the heating chamber 1 and outputting information to that effect. A micro switch having a detection lever is attached to the portion A of FIG. FIG. 3 shows the movable table storage detecting device of the part A. Reference numeral 6 denotes a driving device for moving the moving table 4 in and out of the heating chamber 1 by a well-known combination of a rack 12 and a pinion 13. Reference numeral 7 denotes a heating chamber opening / closing door that can open and close the heating chamber 1 as necessary in a state where the movable table 4 is moved outside the heating chamber 1 by the driving device 6 or is stored in the heating chamber 1. . Reference numeral 8 denotes a door-closed detecting device for detecting the closed state of the door 7 and outputting information to that effect. For example, a micro-switch having a detecting lever is attached to a portion B in FIG. . FIG. 4 shows the door closing detection device of the part B. Reference numeral 9 denotes a door opening / closing device, which drives the door 7 to open / close by a combination of a rack 14 and a pinion 15.
Reference numeral 10 denotes an external input unit which can externally input information relating to the heating operation, the driving of the movable base 4 and the opening / closing operation of the door as required, and is constituted by, for example, a key switch. Numeral 11 denotes a control device constituted by a microcomputer, which is an electrothermal energy generator (2a) for the heating means 2 based on temperature information detected by the temperature detection means 3 irrespective of the moving state of the moving table 4 or the open / closed state of the door 7. ), While the microwave energy generator (2b) is not driven if the moving table 4 is moved out of the heating chamber 1 even if the door is closed, or it is controlled externally. Based on the information input from the input means 10, the driving device 6 is driven and controlled to move the movable table 4 in and out of the heating chamber, and the door opening and closing device 9 is controlled to open and close the door 7 for opening and closing the heating chamber. Or let them do that.

The present invention is configured as described above. Next, the operation will be described.

When a heating operation is performed by using the heating means 2 as in the prior art, the control device 11 first detects that the door 7 is in the closed state based on information output from the door closed detection device 8 and moves the door 7 in the closed state. After detecting that the table 4 is stored in the heating chamber 1 by the information output from the moving table storage detecting device 5, the electric heating energy generation of the heating means 2 is performed based on the information input from the external input means 10. Equipment (2
a) and the drive control of the micro energy wave generator (2b) is started.

After completion of the heating operation, the external input means 10
When the information requesting the opening operation of the door 7 and the movement of the movable base 4 is output to the control device 11 respectively, the combination of the rack 14 and the pinion 15 as the door opening / closing device 9 according to the information from the control device 11 Door 7 is opened,
Subsequently, the moving table 4 is moved toward the outside of the heating chamber 1 by a combination of the rack 12 and the pinion 13 constituting the driving device 6.

FIG. 2 is a longitudinal sectional view showing a state in which heating cooking is repeated in the cooking device of the present invention.

When the heating cooking is repeatedly performed, information requesting the closing operation of the door 7 from the external input means 10 is transmitted to the control device 11 even when the movable table 4 is moved out of the heating chamber 1. Then, the door 7 is closed by the door opening / closing device 9 in accordance with the information from the control device 11. This is to prevent unnecessary release of the high-temperature atmosphere stored in the heating chamber 1 in the previous heating cooking.

The external input means 10 is used to maintain or increase the temperature of the heating chamber while the movable table 4 is being moved out of the heating chamber to perform a necessary cooking operation.
When the information requesting the heating operation is output from the control unit 11 to the control unit 11, the control unit 11 transmits the information to the predetermined heating chamber through the temperature detection unit 3 regardless of the opening / closing information of the door 7 output by the door closing detection device 8. The drive control of the electrothermal energy generator (2a) of the heating means 2 is performed until the internal temperature is detected. In this case, the amount of heating energy generated by the electrothermal energy generating device (2a) driven and controlled by the control device 11 is controlled so that the target object can be heated to a target temperature in a short time if the door is closed. Is output in the same manner as when cooking by heating, but if the door is open, the heating chamber 1
In order to prevent a burn accident or the like due to the hot air blown out from the inside, the heating energy amount is reduced and output as compared with the normal case. In the heating cooking using the microwave energy generator (2b), the control device 11 is connected to the outside. Even if a command to operate the microwave energy generating device (2b) is input from the input means 10, information indicating that the moving table 4 is stored in the heating chamber 1 is output from the moving table storage detecting device 5. The drive control is not performed unless the information indicating that the door 7 is closed is output from the door closing detection device 8. The reason is that the inside of the heating chamber 1 in a state where the movable table 4 is moved out of the heating chamber 1 is very unstable as an environment for performing the microwave heating operation. This is to avoid such a danger mode of baking.

When the temperature in the heating chamber 1 detected by the temperature detecting means 3 reaches the required temperature, the control device 10 outputs information to the heating means 2 to stop the heating operation. Then, the control device 10 drives and controls the door opening / closing device 9 to open the door 7, and drives and controls the driving device 6 to store the movable table 4 in the heating chamber 1. After the storage is completed, the door opening / closing device 9 again
Is driven to close the door 7, and then the heating means 2 is controlled according to the type of cooking.

In any of the above-described operation steps, when the information requesting the interruption of the operation is output from the external input means 10 to the control device 11, the control device 11 immediately stops the drive control. I do.

FIG. 3 is a structural diagram showing a detection state of the moving table storage detecting device 5 when the moving table 4 is completely stored in the heating chamber 1. When the movable table 4 is completely stored in the heating chamber 1, the detection lever 5-a of the switch constituting the movable table storage detecting device 5 is pushed by the 4-a part of the movable table 4, and the switch state is on. Alternatively, the control unit 11 outputs information indicating that the storage of the movable table 4 has been completed by turning the control unit 11 off.

FIG. 4 is a structural diagram showing a detection state of the door closing detection device 8 when the door 7 completes closing of the opening of the heating chamber 1. When the opening of the heating chamber 1 is completely closed by the door 7, the portion 7-a of the door 7 pushes the detection lever 8-a of the switch constituting the door closing detection device 8, and the switch state is on or off. It turns off and outputs to the control device 11 information on the content that the door 7 has been closed.

[0018]

As described above, according to the present invention, the structure is such that the door for opening and closing the heating chamber can be closed even after the object to be heated is moved out of the heating chamber by the moving table. When starting the cooking by repeating the preheating, or when repeating the heating cooking, only the electric heat energy generating device operates as necessary regardless of the information output from the movable table storage detecting device and the door closing detecting device. In this way, the maintenance of the high-temperature atmosphere in the heating chamber and the unnecessary release are prevented. However, as for the microwave energy generator, when the moving table is moving out of the heating chamber, it does not operate even if the door is closed, so that so-called baking does not occur, so safety and Cooking work in consideration of energy saving can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a longitudinal section of one embodiment of the present invention.

FIG. 3 is an operation state diagram of the movable base storage detection device according to the embodiment of the present invention.

FIG. 4 is an operation state diagram of the door closing detection device according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heating room 2 Heating means 2a Electrothermal energy generating device 2b Microwave energy generating device 3 Temperature detecting means 4 Moving table 5 Moving table storage detecting device 6 Drive device 7 Door 8 Door closing detecting device 9 Door opening and closing device 10 External input means 11 Control device 12 rack 13 pinion 14 rack 15 pinion

Continuation of the front page (72) Inventor Tatsushi Arai 3-1, Shinjuyoji, Kashiwa-shi, Chiba Examiner, Hitachi Home Tech Co., Ltd. Tetsuo Sekiguchi (56) References JP-A-2-161214 (JP, A) JP-A-4 -324036 (JP, A) JP-A-5-126342 (JP, A) JP-A-4-136414 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24C 7/02 521 F24C 7/02 511 F24C 15/16

Claims (5)

(57) [Claims] 1. A heating chamber (1), a heating means (2) for heating an object to be heated installed in the heating chamber, and a temperature detection means (3) for detecting a temperature in the heating chamber and outputting information. )
And a moving table (4) that moves an object to be heated placed inside and outside of the heating chamber, and outputs information by detecting a state in which the moving table is stored in the heating chamber. A moving table storage detecting device (5), a driving device (6) for moving the moving table into and out of the heating chamber, and a state in which the moving table is moved out of the heating chamber and stored in the heating chamber by the driving device. A heating chamber opening / closing door (7) configured to be able to open and close the heating chamber as needed in the opened state, and a door closing detection device (11) that detects the closing state of the door and outputs information. 8), a door opening / closing device (9) for opening / closing the door, and information relating to the heating operation of the heating means, the driving of the moving table, and the operation of the door opening / closing device, if necessary, from outside. External input means (10) capable of inputting, The heating unit, the driving unit, and the door opening / closing unit are driven based on information output from the temperature detecting unit, the moving table storage detecting device, and the door closing detecting device in addition to the information output from the external input unit. A cooking device characterized by comprising a control device (11) for controlling. 2. A heating chamber (1), a heating means (2) for heating an object to be heated installed in the heating chamber, and an inside and outside of the heating chamber on which an object to be heated installed in the heating chamber is placed. A moving table (4), a moving table storage detecting device (5) for detecting a state in which the moving table is stored in the heating chamber and outputting information, and moving the moving table into and out of the heating chamber. A driving device (6) for moving, and a heating device configured to be able to open and close the heating chamber as required in a state in which the moving table is moved out of the heating chamber and stored in the heating chamber by the driving device. A door for opening and closing the room (7), a door closing detection device (8) for detecting the closed state of the door and outputting information, and a door opening and closing device (9) for opening and closing the door. The heating operation of the heating means and the driving of the moving table and the door External input means (10) capable of externally inputting information relating to the operation of the switchgear as required
And controlling the driving of the heating means, the driving device, and the door opening / closing device based on information output from the movable base storage detection device and the door closing detection device in addition to the information output from the external input device. A cooking device characterized by comprising a control device (11). 3. The heating means comprises an electrothermal energy generator (2a) and a microwave energy generator (2b).
3. The cooking device according to claim 2, wherein the cooking device comprises: 4. When information requesting driving of the electrothermal energy generating device is output from the external input means,
4. The heating device according to claim 3, wherein the control device is configured to operate the electrothermal energy generating device regardless of presence / absence of information output from the movable base storage detecting device and the door closing detecting device. Cooking device. 5. When the information for requesting driving of the microwave energy generating device is output from the external input means, the moving table is stored in the heating chamber and the door is closed to close the moving table. 4. The heating device according to claim 3, wherein the control device is configured to operate the microwave energy generation device only when the information indicating that is output from the storage detection device and the door closing detection device. Cooking device.