JPS6123201Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a heating device for heating an object to be heated such as a cooking appliance.

Generally, in this type of device, such as a microwave oven, a screen made of glass or the like is provided on the door body. It is now possible to sequentially observe the rising state while maintaining the optimum temperature state.

However, the screen while cooking food is heating,
It is heated by the thermal energy released into the heating chamber and reaches a high temperature of approximately 100℃.
If you bring your face close to the screen during observation, there is a risk of burns, etc. To avoid this risk, if you open the door and observe the cooking status of the cooked food, the temperature inside the heating chamber will be at the optimum temperature. If the temperature drops suddenly and the heating chamber has to be heated again to the optimum temperature, a problem will occur. Moreover, since the cooked food is viewed through a screen, it is difficult to clearly see the heating state of the food, which increases the risk of cooking failure.

This invention was made with attention to the above-mentioned circumstances, and its purpose is to maintain the heating state of the heated object at the optimum temperature due to heating.
It is an object of the present invention to provide a heating device that can be clearly observed without any danger and can consistently perform good heating of a heated object.

An embodiment of this invention will be described below with reference to the drawings. Reference numeral 1 in FIG. 1 is a main body of a heating device, such as a microwave oven, and a heating chamber 2, which will be described later, is provided within the main body 1. As shown in FIG. A side-opening door body 3 for opening and closing the opening of the heating chamber 2 is pivotally mounted on the front side of the main body 1. Further, on the front side of the main body 1, an operation panel 4 is provided on the side of the door body 3, and on this operation panel 4, a receiver (internal receiver) 5 is provided with a screen 5a, which is an image receiver, from the upper side. , turn on the power of this receiver 5 and the image pickup device 6, which will be described later.
A television switch 7 to turn off, an operation switch 8 to move the imaging device 6, a heater switch 11 to turn on and off the power to upper and lower heaters 35 and 36, which will be described later, and a range to turn on and off the power to the magnetron 12, which will be described later. A switch 13, an output changeover switch 14a, a keyboard 14 consisting of operation buttons 0 to 9, a clear button 15, a cooking card insertion slot 16, a memory button 17, and a cooking start switch 18 are provided, respectively. In addition, 19,1
9 is the leg.

Next, if we explain heating chamber 2, this is the second heating chamber.
As shown in the figure, it is composed of a lower frame 20 and a ceiling plate 21 attached to the lower frame 20, and the lower frame 20 is used as a partition plate on the side inside the main body 1, that is, on the opposite side of the operation panel 4. An equipment room (not shown) is formed in that part. The equipment room accommodates a magnetron 12, a microcomputer electric component circuit (not shown) for reading and storing cooking cards, various electric circuit groups 22 to be described later, and the like. Further, on the ceiling plate 21 of the heating chamber 2, an imaging device 6 and a waveguide 23 are arranged in parallel, and the above-described magnetron 12 is attached to the waveguide 23. Note that 24 is a high-frequency wave outlet consisting of a large number of small holes. Further, the imaging device 6 is composed of a camera 25, and a camera support stand 2 on which the camera 25 is attached to a ceiling plate 21.
An imaging unit 25a is rotatably attached to the heating chamber 6 so as to face the heating chamber 2. And this camera 2
5 is adapted to rotate about the mounting part as a fulcrum by a camera movement mechanism (not shown) that is linked to the operation switch 8 provided on the camera 25,
By moving the camera 25, images of every corner of the heating chamber 2 can be taken. Note that 27 is a through hole for imaging.

Further, a drive motor 2 is provided at the bottom of the lower frame 20.
8. A turntable drive mechanism 30 consisting of a transmission shaft 29 is provided, and a turntable 31 is placed on this transmission shaft 29. Note that 32a and 32a are turntable guide rollers. Further, on the lower frame 20, a plurality of mounting shelf support protrusions 32, 32 are formed in the vertical direction in correspondence with each other on the opposing side walls, and the mounting shelf support protrusions 32, 32 are formed across these mounting shelf support protrusions 32, 32. The shelf 33 is locked. Note that 34 is a cooking device which is the object to be heated.

In the figure, 35 is an upper heater, and 36 is a lower heater.

Next, various electric circuit groups 22 housed in the equipment room
To explain, these electric circuit groups 22 can be roughly divided into a power supply circuit 37, a control circuit 38, and an image transmission circuit 3.
9, each of these circuits 37, 38, 39
are connected to each other as shown in FIG.
The magnetron 12 and upper and lower heaters 35 and 36 are connected to the power supply circuit 37, respectively, and the control circuit 38 is connected to the operation panel 4.
Various operation switches on the top are connected. Further, the image sending circuit 39 is connected to the image receiver 5. Then, by selectively operating the heater switch 11 and range switch 13 on the operation panel 4, and then pressing the keyboard 14 to set the desired cooking time and turning on the cooking start switch 18, the operation signal is is input to the power supply circuit 37 via the control circuit 38, and the magnetron 12 or the upper and lower heaters 35, 36 are operated by controlling the power supply.

Furthermore, by operating the television switch 7 on the operation panel 4, the operation signal is transmitted to the control circuit 3.
8 to the image transmission circuit 39, and as shown in FIG. It is starting to be shown. Then, by further operating the operating switch 8 on the operating panel 4, the operating signal is inputted to the control circuit 38, and transmitted to the camera 2 via the moving mechanism.
5 is moved, and a desired location within the heating chamber 2 is displayed on the screen 5a of the image receiver 5. Also, 4 in the diagram
3 is a hand switch for remote control,
The hand switch 42 and the control circuit 38 are connected by radio waves oscillated from the hand switch 43, and by operating the hand switch 43, the operation signal is input to the control circuit 38 via radio waves. The image pickup signal that has reached the modulator 42 of the image transmission circuit 39 is switched, and the signal is inputted to the transmitter 44, transmitted, and inputted to an empty channel portion of a separate receiver, for example, a television external receiver 45, to capture an image. It is now displayed on the TV 45 receiver.

Therefore, when manually cooking with the heater using the microwave oven configured as described above, first open the door body 3 and place the cooked items 34 on the shelf 33.
is placed and housed in the heating chamber 2. This condition is shown in Figure 2, and then heater switch 1 is
1, then operate the output selector switch 14a, then input the desired cooking time on the keyboard 14, and then press the cooking start switch 18.
Turn on. Then, these operation signals are input to the power supply circuit 37 via the control circuit 38, and the upper and lower heaters 35 and 36 generate heat in accordance with the control signals output from the control circuit 38. This results in
Cooked product 34 is heated by thermal energy.

During this heating process, if you want to check the cooking status of the cooked product 34, first turn on the TV switch 7.
Turn ON. Then, the cooked product 34 in the heating chamber 2
is imaged by the camera 25, the image signal is input to the receiver 5 via the image transmission circuit 39, and the situation is clearly displayed on the screen 5a. If the user wishes to observe the cooking condition in even more detail, the operator operates the operation switch 8. Then, the imaging section 25a of the camera 25 moves via the control circuit 38 and the movement mechanism in accordance with the amount of operation of the operation switch 8, and images captured over a wide range according to the movement of the imaging section 25a are displayed on the screen 5a. , it is possible to observe the cooking condition in detail.

By the way, during this cooking process, if there is a TV program that you want to watch and you want to check the cooking status of the cooked product 34 while watching TV 45 in another room, operate the hand switch 43 and then change the channel. By operating the camera 25 to an empty channel, the cooking status captured by the camera 25 can be instantly displayed on the screen of the receiver, allowing the cooking status to be observed on the spot.

In this way, the camera 25 is provided in the heating chamber 2,
Since the cooking status of the food 34 is displayed on the receiver 5 and the television receiver 45, the cooking status can be clearly observed without any danger while maintaining the optimum temperature in the heating chamber 2. , cooking can be done well. Moreover, since there is no need to open the door 3 each time during cooking, the cooking time can be shortened, and furthermore, the cooking status can be observed on the spot through the receiver even if you are far away. Therefore, it is very convenient and the cooking time can be reduced, which is very effective.

Although the above-mentioned embodiment describes manual heating cooking, the same effects as in the above-mentioned embodiment can be obtained by manual high-frequency cooking using a magnetron, or automatic cooking using a heater or magnetron using a cooking card. In the case of automatic cooking, if information such as cooking time, output, high frequency cooking or heater cooking is displayed on the receiver according to the cooking progress, the cook can obtain more reliable information about the cooking status.
Convenience can be further improved.

Furthermore, in the above-mentioned embodiment, the cooking status is displayed on the empty channel of the television set, which is a separate receiver, but the television receiver is equipped with an image switching circuit so that the cooking status is displayed on the same screen. If necessary, the cooking status can be observed more effectively by displaying the cooking status on the same screen as needed by switching the hand switch.

Further, in the above embodiment, the hand switch is cordless, but the hand switch may be corded.

In this way, this invention can be modified in various ways.

As explained above, according to this invention, it is possible to clearly observe the heating state of the object to be heated without any danger while maintaining the optimum temperature in the heating chamber, and it is possible to perform heating properly. can. Moreover,
Since there is no need to open the door each time during heating, heating time can be shortened, and the heating status can be observed on the spot through a receiver even if you are far away, making it highly convenient and reducing heating time. It can also be put to good use, and the effects are great.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of this invention, Fig. 2 is a longitudinal cross-sectional view showing how the heating chamber is imaged by the imaging device, Fig. 3 is a block diagram showing various electric circuits, and Fig. 4 is FIG. 2 is a block diagram showing an image transmission circuit of the imaging device. 2... Heating chamber, 5... Receiver (internal receiver),
6... Imaging device, 25... Image receiver (external receiver), 43... Hand switch (switching means), 4
4...Transmitter (means for connecting an external receiver).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a heating device configured with a heating chamber provided in a main body, an imaging device for capturing an image of the inside of the heating chamber is provided in the heating chamber, and the imaging device captures images on the main body side. In addition to installing an internal receiver to project the image,
Providing means for connecting the external receiver for projecting the image captured by the imaging device on the external receiver,
A heating device further comprising means for switching the image of each internal receiver and external receiver. (2) The heating device according to claim 1, wherein the imaging device is capable of changing the imaging position.