JPS587139B2 - High frequency heating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high frequency heating device having a relatively large heating chamber.

Although conventional high-frequency heating devices can heat and cook food, no attempt has been made to use them for purposes other than cooking.

However, it is sometimes used to dry wet confectionery.
It was not actively used at home for anything other than food.

Therefore, the current situation is to use a separate dish dryer to dry food, or to dry the dishes with a dish towel after washing them, and then to put them away in a cupboard.

In this case, in the former case, the problem is where to place the dish dryer.
The latter requires a large cupboard and requires a large number of dry cloths, which is extremely troublesome.

The present invention has been made to solve the above-mentioned drawbacks, and the heating chamber of the high-frequency heating device can be used not only for cooking food, but also for drying tableware. It is an object of the present invention to provide a high-frequency heating device that can also be used as a storage for tableware after drying is completed.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Fig. 1 shows food being cooked with a high-frequency heating device.A heating chamber 2 for cooking food is provided inside the main body 1, and a magnetron, which is a high-frequency generator, is installed on the rear wall 2a of the heating chamber 2. A feeding port 6 coupled with a waveguide 5 is provided to a magnetron antenna 4 connected to the magnetron antenna 3, and radio waves radiated from the magnetron antenna 4 are guided into the heating chamber 2 through the feeding port 6. Foods 3 placed on a saucer 7 in a heating chamber 2 are heated and cooked.

Further, a rail 11 with moving rollers 10 is fixed to the lower part of the door 9 that opens and closes the front opening of the heating chamber 2, and as the door 9 is opened and closed, the rail 11 is guided by fixed rollers 12 and moves back and forth. do.

Further, on the side surface of the door 9 facing the heating chamber 2, in order to support the peripheral edge of the saucer 7, one end edge of a saucer mounting bracket 13, which is a metal rod formed into a rectangular shape as shown in FIG. 2, is supported. A support 14 is attached.

When placing the saucer 7 on the mounting bracket 14, as shown in FIG. At the same time, the movement of the saucer 7 in the front, rear, left and right directions is controlled.

Therefore, by lifting only the saucer 7, the tray 7 can be carried as is.

Next, in order to release the engagement between the mounting bracket 13 and the support 14, it is sufficient to lift the rear part of the mounting bracket 13 in the direction of the arrow. In order to mount it on a computer, as shown in FIG. 3, the two metal rods of the mounting bracket 13 should be brought into contact with the electronic writing support 14.

Incidentally, the mounting fittings 13 and the support fittings 14 have their surfaces treated with an insulating treatment 15 such as hollow to prevent discharge during high frequency operation.

So far, we have described the operation of the high-frequency heating device as a high-frequency heating device.Next, the case of operating the high-frequency heating device as a dish dryer will be described with reference to FIG.

First, drying baskets 16 and 17 as shown in FIG. 4 are installed in the support 14 of the door 9 in place of the saucer support 13 shown in FIG. 1, and dishes 18 to be dried are sequentially arranged therein.

Figure 4 shows an example in which two dryers 16 and 17 are used, but it is the same even if one is used, but if the heating chamber 2 is large, it is easier to put in and take out tableware. Easy,
Easy to use.

The method for attaching and detaching the drying baskets 16 and 17 to the support 14 of the door 9 is the same as that for the mounting bracket 13 when used as a high-frequency heating device.

However, if it is the saucer 7, four can be attached to the support 14 at the same time, but only two can be attached at the same time since the dryers 16 and 17 are tall.

As mentioned above, the door 9 is a pull-out type, and the saucer 7 or wire mesh can be removably attached to the door 9 during high-frequency heating, and the drying baskets 16 and 17 can be attached to the door 9 when drying. Even in the case of a stationary type, opening and closing the door 9 becomes convenient, and when the door 9 is opened, the food items 8 or the drying baskets 16, 17 come out, making it extremely convenient to take them in and out.

Next, the drying baskets 16 and 17 are attached to the door 9, and when the door 9 is closed, the pins 19 and 20 integrally formed so as to protrude rearward from the back of the drying basket 16 and 17 protrude out of the heating chamber 2. The switches 21 and 22 provided at positions corresponding to the pins 19 and 20 are operated.

When the switches 21 and 22 stop the operation of the high-frequency heating device, they both enable the hot air heating device that raises the atmospheric temperature in the heating chamber 2 to operate.

That is, it is a changeover switch between the heater circuit and the high-frequency output circuit, and when either switch 21 or 22 is operated, the high-frequency circuit becomes inactive and the heater circuit becomes operational.

In this state, when the heater circuit is operated by an appropriate method such as by pressing a start button, the fan 24 and heater located in the space surrounded by the rear wall 2a of the heating chamber 2, the waveguide wall, and the air guide 23 are activated. 25 is energized, the fan 24 rotates, and the temperature of the heater 25 rises, heating the nearby air.

The heated air is sent into the heating chamber 2 by the fan 24 through the punched holes 26 formed in the upper surface of the waveguide wall and the power supply port 6 .

The hot air sent into the heating chamber 2 is transmitted through shielding walls 27 and 28 provided on the rear side surfaces of the drying baskets 16 and 17 and a shielding wall provided so as to protrude rearward from the rear upper end of the upper drying cage 16. 29 to the bottom of the heating chamber 2, where the tableware 18 is dried and then ascended to the top of the heating chamber 2.
It returns to its original position through the punched hole 30 formed in the rear wall 2a, and the temperature gradually increases.

As mentioned above, since the hot air heating device that increases the temperature inside the heating chamber 2 is installed outside the heating chamber 2, the inside of the heating chamber 2 can be used more widely than when installed inside the heating chamber 2. Tableware 18 that should be dried because the temperature distribution inside is very good
It can dry almost evenly.

Furthermore, if the temperature inside the heating chamber 2 rises, the relative humidity inside the heating chamber 2 decreases, and water droplets adhering to tableware 18 evaporate into the air.After all the water droplets have evaporated, the hot air heating device is turned off. ,
The temperature inside the heating chamber 2 decreases, and water droplets accumulate on the bottom wall of the heating chamber 2.

At this time, since the heat capacity of tableware 18 is large, the temperature does not cool 1 and water droplets do not easily adhere to it.

The water accumulated on the bottom wall of the heating chamber 2 collects in a water reservoir 31 provided on the bottom wall of the heating chamber 2 and is discharged to the outside.

In the above example, a control device for controlling the temperature inside the heating chamber 2 was not provided, but when a large capacity heater is used to shorten the drying time, the control device is provided to prevent overheating. is preferable.

As is clear from the above description, according to the present invention, tableware can also be dried in the heating chamber for cooking food, so the following excellent effects can be obtained.

(1) Compared to the conventional case where a separate dish dryer is used, the kitchen space can be used more widely and effectively.

In particular, in small Japanese kitchens, there is no place to put a dish dryer, so it is often placed far away from the sink, which is not convenient for use. By making it possible to do this as well, dry dishes can be taken out in the most convenient condition.

(2) Generally, high-frequency heating equipment is used to heat and cook the dishes before a meal, and dry the dishes after the meal, so after drying the dishes, they can be used as tableware storage until the next meal. can.

What's more, you can serve dried squid directly to the table before meals.

(3) When drying dishes, preheated food from cooking often remains in the heating chamber, so thermal energy can be saved.

(4) A saucer or wire mesh for placing food in the heating chamber;
Although it has a simple structure that includes a member to make the dish drying basket interchangeable, it is extremely economical because it can be used for both food heating and dish drying.

Further, the drying corner is provided with a pin for operating a switch that stops the operation of the high frequency generator and enables the operation of the hot air heating device, and the switch is configured to open and close in conjunction with the movement of the drying corner. In particular, the following excellent effects can be obtained.

(1) Even if the drying cap is made of metal, it is safe because the drying cap will not rise in temperature due to surface current caused by high frequency waves or cause discharge.

(2) When high-frequency waves with a strong electric field are applied to tableware that has a pattern made of metal such as gold powder, electric discharge occurs in the metal part, causing local heating and causing the pattern to darken.

In the present invention, the operation of the high-frequency generator is stopped when the dryer is inserted, so that the above-mentioned fear does not occur.

(3) When switching between the high frequency generator and the hot air heating device is performed using a pin protruding from the rear of the drying tube, when the drying tube is inserted into the heating chamber, the pin will protrude outside the heating chamber; Even if it is made of metal, there is no risk of radio wave leakage because the high frequency generator is not operating.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a vertical side view of the high-frequency heating device during food cooking, Figs. 2A and B are a plan view and side view of the saucer mounting bracket, and Fig. 3 is the mounting bracket. FIG. 4 is a longitudinal sectional view of the high-frequency heating device when drying dishes. DESCRIPTION OF SYMBOLS 1... Main body, 2... Heating chamber, 3... Magnetron, 4... Magnetron antenna, 5... Waveguide, 6
...Power supply port, 7...Saucer, 8...Food, 9...
・Door, 13... saucer mounting bracket, 14... support,
16,17... Drying basket, 18... Tableware, 19,2
0...Pin, 21, 22...Switch, 23...
Air guide, 24...Fan, 25...Heater, 2
6,30...Punching hole.

Claims (1)

[Claims] 1. A heating chamber for storing food, a high-frequency generator for emitting high-frequency waves into the heating chamber, a hot-air heating device for sending hot air into the heating chamber, and a front opening of the heating chamber that moves back and forth. The drying cage is equipped with a door that can be opened and closed by a door, and a drying rack that is removably supported by a support provided on a side surface of the door facing the heating chamber, and the drying rack has a door that can be opened and closed by stopping the operation of the high-frequency generator and supplying the hot air. A high-frequency heating device comprising a pin for operating a switch that enables the heating device to operate, and the switch is opened and closed in conjunction with movement of the drying corner.