JPS5984029A - Heating cooker - Google Patents

Abstract

PURPOSE:To facilitate setting of heating times of a long period and a short period by one timer by a method wherein the speed of the timer is controlled by a timer motor having two speeds and the outputs of the electric source of the timer motor as well as a heating means are interrupted intermittently when a slow speed is selected. CONSTITUTION:When the heating time is set by a timer tap 15 into the range of 0- 200 deg., a switch 25 is connected to the (a) side of a contact by the rotation of a cam 24 provided on a timer shaft 23, and when a switching button of strong fire side is selected and an operating button 6 is pushed by external operation, switch 16, 17 are closed, the switch 18 is connected to the (a) side of the contact, the electric source is conducted to the timer motor 10 continuously and a high-frequency wave is radiated into a heating chamber from the high-frequency wave generating device provided at the secondary side of a transformer 26. When the heating time is set by the timer tap 15 into the range of 200-300 deg., the switch 25 is connected to the (b) side of the contact by the cam 24 provided on the timer shaft 23, the electric source of the timer motor 10 is put ON and OFF by an intermittent switch 25 due to the effect of the cam provided on a motor 20 for driving, whereby the operating time of the high-frequency wave generating device may be controlled and the heating time may be set for the time of a long period.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cooking device such as a high-frequency heating device that dielectrically heats an object to be heated.

Conventional structure and its problems Conventional heating cookers, such as high-frequency heating devices, dielectrically heat only the object to be heated, such as food, so they are very convenient because they have good heating efficiency and can heat quickly. It is a heating cooker. Depending on the cooking menu, it is also possible to control the high frequency output and heat at low output for a long time when cooking by simmering for a long time, such as defrosting, cooking eggs, and stewing dishes. The device has also been incorporated into conventional products and has shown some effectiveness. In particular, stewed dishes are heated at low output for a very long time, so the heating time must be set for a long time.

For example, with dielectric heating using normal 600W or high-frequency output of around 600W, it would be satisfactory if the time could be set for 16 to 20 minutes, but the
When heating, it is heated with about 1/3 of the normal high frequency output, so it is necessary to set the heating time for 1 hour, so if you can only set the heating time for about 16 to 20 minutes as before, it will be very difficult. It's inconvenient. As an example of this, as shown in FIG. 1, the object to be heated (not shown) is placed on the rotary mounting table 2 in the heating chamber 1, the door 3 is closed, and then the high output timer 4 is set to the heated object. The heating time was set in accordance with the menu table 5 depending on the type, size, and weight of the item, the cooking was started by pressing the operation button 6, and the cooking ended when the high-output timer 4 went off.

Therefore, it was necessary to provide a time switch used for normal cooking and a time switch that can be set for a long time for stewed dishes.

An example of this is shown in FIG. This has a high frequency output switch, and the time switch has a high output timer 4 and a low output timer 7. When the output is high, the high output timer 4 sets the heating time, and when the output is low, the heating time is set. In such cases, the heating time was set using the low output timer 7.

FIG. 3 shows this circuit. When the low r+' and power timer 7 is operated, the time switch 8 is turned on and the low output timer motor 9 starts rotating. At this time, the time switch 8 of course remains closed until the time is up.

In order to solve the single-fertilization problem, there is a device that uses a two-speed timer 10 that can be set for a short time or a long time using a single time switch. As shown in Figure 4, the time setting is divided into intervals of about 20 minutes, and up to 2 minutes it is possible to easily set the time with a large scale, and from the point exceeding 20 minutes, the scale becomes smaller and the time can be set for a longer time. The operating speed of the time switch can be made variable so that the time can be set.

Figure 6 shows an electrical circuit diagram of the high-frequency heating device shown in Figure 4, which is equipped with a two-speed timer 1o that can be set for short or long periods with a single time switch. On the other hand, the timer scale 12 is divided into unequal divisions of 1°2 with the 20 minute position as the boundary. This is designed so that short or long time settings can be made with one timer.

The user can arbitrarily select the switching of the high frequency output using the switching button 13.

In this heating cooker, when an object to be heated is placed on a rotating table 2 in a heating chamber 1 and a door 3 is closed, a door switch 14 is closed. Then, when the heating time is set with the timer knob 15 according to the type and size of the object to be heated, the timer switch 8 is closed, the high heat heating output is selected with the changeover button 13, and when the operation button 6 is pressed, the switch 16 is closed. , 17 and 18 are closed to start cooking. Also, select low heat for heating output and press operation button 6.
When is pressed, the switches 16 and 17 are closed, and the switch 19 is turned on and off by a cam provided on the drive motor 20 of the transfer table 101 to start cooking.

When the set cooking time has elapsed, the timer switch 8 is opened and the heating cooking ends.

A heating cooker with such a configuration is much more complicated than a 1-speed timer, and the cost of parts is almost the same as when using 2 timers. The disadvantage is that it becomes complicated, and the advantage is that it saves space.

OBJECTS OF THE INVENTION The present invention solves the drawbacks of the prior art described in 1.It is an object of the present invention to provide a heating cooker that is easy to set long and short heating times with one timer and is easy to use. It is something to do.

Structure of the Invention In order to achieve the above object, the cooking device of the present invention controls the operation of the heating means for heating the object to be heated by a timer motor having two speeds, and when the speed is slow, the power supply of the timer motor is controlled. The output of the heating means and the heating time can be adjusted to the side at will, making it easy to use and allowing for good cooking according to the menu of the object to be heated. This has the effect that it can be carried out.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 6 to g.

Note that the same reference numerals will be used to describe the same abductions as in the conventional example.

In FIG. 6, 14 is a door switch that is linked to the opening and closing of the door provided in the opening 1-1 part of the heating chamber, and 1° is a heating device that sets the operating time of a high-frequency generator, which is a heating means for the object to be heated. This is a two-speed timer used as an example of a time setting device. 21 is a lamp for heating indoor lighting, 22
1 is a fan motor that cools the high-frequency generator; 20 is a motor for driving a rotating table that rotates the object to be heated stored in the heating chamber; 1 and 8 are the timer knobs 16 shown in FIG. 7; By closing the time switch, power 11 heat time, timer knob 15 high heating output, i.e. O
When set in the range of ~2oO0, the switch 25 is rotated by the rotation of the cam 24 provided on the timer shaft 23 shown in FIG.
is connected to the contact A side, and when the high flame side switching button is selected by external operation and the operation button 6 is pressed, the switches 16 and 17 are closed, the switch 18 is connected to the contact A side, and the timer motor 10 is As power is continuously supplied, the transformer 26
A high frequency wave is radiated into the heating chamber from a high frequency generator provided on the secondary side of the heating chamber. Also, when the timer knob 15 is used to set the heating time to a low heating output, that is, in the range of 200 to 3000, the switch 26 is connected to the contact port side by the cam 24 provided on the timer shaft 23, and the switch 26 is connected to the contact port side. The timer motor 10 is powered on by the intermittent switch 19 due to the action of the cam.

The operation time of the high frequency generator can be controlled 1311 by being turned off, and it is possible to set a longer heating time.

The timer scale 12 provided around the timer knob 16 indicates a high heating output of 20 minutes (0 to 2oO0)! , 1 minute is 100, and low heating output is 30 to 120 minutes (
Since 1 minute corresponds to 1 degree (2oO0 to 300 degrees), it is possible to more accurately set the time using high heating output.

In this way, according to the heating cooker of this embodiment, the 1-speed timer can be changed to a 2-speed timer depending on the application using the cam 24 and the switch 25 provided on the timer shaft 23, which improves stability of quality. Cost reduction can be achieved through assets.

Compared to Kotoni, which uses one timer as a two-speed timer, the space taken up by one timer can be reduced, and the timer scale 12 for frequently used high heating output is made thicker, making it easier to set the timer.

The power supply to the timer motor 10 is intermittent by the action of the fan motor 22 that cools the high-frequency heating device used as an example of the heating means, and the cam provided on the drive motor 2o of the rotary mounting table that rotates the object to be heated. It's convenient because I can control the amount.

Furthermore, if the switch 18 is connected to the contact port side and the timer knob 16 is set within 20 minutes, the switch 19 is turned on and off by the cam provided on the drive motor 20, so a low heating output can be obtained. You can defrost and cook the food.

To summarize how to use this eel heating cooker, 1.
- As described above, usability can be further improved.

According to the present invention, one timer is configured as a two-speed timer, and when the rotation speed of the timer motor is slow, the timer motor power is turned on/off using an intermittent switch.
By turning it off, the output and operating time of the heating means can be changed arbitrarily, making it easy to set cooking settings that match the menu, and providing an easy-to-use heating cooker with stable quality and performance. can do.

[Brief explanation of drawings]

Figures 1 and 2 are TLE side views of a conventional heating cooker, Figure 3 is an electric circuit diagram of Figure 2, and Figure 4 is a diagram of 11 parts of a heating cooker of another embodiment. Figure 6 is the electric circuit diagram of Figure 4, Figure 6 is the electric circuit diagram of the heating cooker which is an embodiment of the present invention, No. 71 is an IF view showing the 2-speed timer section, FIG. 8 is a perspective view showing the main parts of the two-speed timer. 1... Heating chamber, 10... 2 speed timer (heating time setting device), 19... Intermittent switch (variable means), 26... Transformer (human power of heating means). Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 5 Figure 71

Claims (1)

[Claims] A heating chamber for storing an object to be heated, a means for varying the heating output by continuing input to a heating means for the object to be heated housed in the heating chamber, and a heating time setting device for setting an operating time of the heating means. The heating time setting device has a timer motor with at least two speeds, and when the speed is slow, the power supply of the timer motor and the input of the heating means are switched on and off.