JPS6325245B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-frequency heating cooker that controls high-frequency output using a humidity sensor. The purpose is to perform control.

A high-frequency heating cooker with a humidity sensor uses a humidity sensor to detect a sudden increase in water vapor from food when high-frequency heating is performed sufficiently.
It has a function to control high frequency output.

However, in order for the humidity sensor to detect a sudden increase in water vapor, it is necessary to apply an optimal amount of ventilation to the humidity sensor.

Conventionally, as shown in FIGS. 1 and 2, a first exhaust port 1 for exhausting air inside the heating chamber to the outside;
Second exhaust port 2 that exhausts the cooling air of the high frequency oscillator
The two were covered with the same exhaust cover 3 provided on the back of the main body, and the exhaust from both was combined and then exhausted to the outside. In the above-mentioned conventional configuration, the exhaust air discharged from the second exhaust port flows into the exhaust flow coming from the heating chamber via the humidity sensor 4 from the first exhaust port, so that the optimum air volume for the humidity sensor 4 is reduced. As a result, the humidity sensor's ability to detect humidity deteriorated, and the ability to control the high frequency output was lost, causing the object to be heated continuously and creating a risk of fire due to overheating.

Therefore, the present invention solves the above-mentioned conventional drawbacks with an extremely simple configuration, and one embodiment of the present invention will be described below with reference to the accompanying drawings.

Note that the same parts as in the conventional example will be explained using the same reference numerals.

As shown in FIG. 3, the present invention covers the first exhaust port 1 and the second exhaust port 2 with the same exhaust cover 3. They are separated by a partition plate 5 provided.

Therefore, from the second exhaust port 2 to the first exhaust port 1
Therefore, the air volume of the exhaust passage where the humidity sensor 4 is located does not change significantly.

The reason why the first exhaust port 1 and the second exhaust port 2 are covered with the same exhaust cover is that the exhaust position is restricted due to design or usability reasons, and the exhaust flow from the heating chamber is limited to water vapor emitted from the food. Because it contains a large amount of
To prevent this, the high-frequency oscillator is cooled and heated exhaust gas is used to raise the temperature near the exhaust cover and exhaust port, and machinability and workability are improved by sharing parts.

As described above, the present invention includes a humidity sensor provided in the exhaust flow, a first exhaust port for discharging the air inside the heating chamber to the outside, and a second exhaust port for discharging the cooled air that has been heated by cooling the high-frequency oscillator. The two exhaust ports are covered with the same exhaust cover, and the inside of this exhaust cover is partitioned with a partition plate to separate the first and second exhaust ports.
Since the exhaust air no longer flows from the second exhaust port to the first exhaust port, the air volume passing through the exhaust flow passage where the humidity sensor is located will not change significantly, and the humidity sensor will always be able to accurately detect the humidity. Detection can be performed.

Therefore, there is no risk of fire due to overheating of the food, and good cooking can be achieved at all times.

In addition, the exhaust cover is heated by the exhaust air that cools the high-frequency oscillator and is heated, so the exhaust air that contains a large amount of moisture that has passed through the humidity sensor is sent to the exhaust cover and the first exhaust port. Even if the exhaust cover hits the exhaust cover, there will be no condensation, and water will not accumulate inside the exhaust cover or flow down to the outside. Furthermore, since it is a single exhaust cover, it has good processability and workability, and has great practical effects. On the other hand, the air exhausted through the heating chamber is discharged outside the device without touching electrical components such as magnetron tubes, high-voltage transformers, fan motors, etc., so it charges electrical components such as magnetron tubes, high-voltage transformers, fan motors, etc. There will be no condensation on the parts. Therefore, there is no risk of insulation deterioration caused by water vapor contained in the exhaust air from the heating chamber.
There is an effect called.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional high-frequency cooking device seen from the back, Fig. 2 is an enlarged perspective view of the main part of the exhaust port, and Fig. 3 shows an embodiment of the present invention in the same part. The enlarged perspective view and FIG. 4 are partially cutaway perspective views of the cooking device. 1...First exhaust port, 2...Second exhaust port, 3
...Exhaust cover, 4...Humidity sensor, 5...Partition plate.

Claims (1)

[Claims] 1. A heating chamber, a high-frequency oscillator that supplies high-frequency energy to the heating chamber, a first exhaust port for exhausting the air inside the heating chamber to the outside, a cooling means for cooling the high-frequency oscillator, and a high-frequency oscillator that supplies high-frequency energy to the heating chamber. A second exhaust port for exhausting air after cooling the oscillator, and a second exhaust port provided in the exhaust flow path from the heating chamber to the first exhaust port to detect humidity contained in the exhaust flow to generate the high frequency oscillator. The first exhaust port and the second exhaust port are covered with the same exhaust cover, and the first and second exhaust ports are separated by a partition plate. High frequency heating cooker.