JPS6138017Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooking device for cooking food in an oven, and particularly to a cooling device in this cooking device.

This type of heating cooking device that has already been proposed is
As shown in FIGS. 1 to 3, an oven 2 and a machine room 3 are provided in a box-shaped casing body 1.
A well-known magnetron 5 is installed on one side of the oven frame 4.
The casing body 1 located at the front opening 2a of the oven 2 is provided with an opening/closing door 6 that can be opened and closed freely, and the bottom plate 1a of the casing body 1 forming the machine room 3 is provided with a high voltage transformer 7, etc. A cooling fan 8 is installed inside the casing main body 1 located behind the high voltage transformer 7 and the magnetron 5 via a bracket 9, and the cooling fan 8 is installed in the casing main body. A suction port 10 is provided on the back plate 1b of 1,
Furthermore, a blowout louver 11 is provided on the side plate 1c of the casing body 1 close to the magnetron 5.

Particularly, as shown in FIG. 3, the blowout louvers 11 are arranged such that each cut-out piece 13 forming the blowout vent hole 12 is connected to the inside of the casing body 1 with respect to the fluid flow of the cooling fan 8. It is cut and raised in the shape of a trailing wave, and is formed in the same direction.

Therefore, the cooling device of the heating cooking device described above,
When cooking, by energizing the magnetron 5,
In advance, the food to be cooked inserted into the oven 2 is heated and cooked by the magnetron 5, and the cooling fan 8 exchanges heat with the magnetron 5 using a part of the cooling fluid from the suction port 10. While being cooled, the air flows into the oven 2 from the air supply duct 14 through the air supply hole 15, and is exhausted to the outside from an outlet (not shown).

On the other hand, the remaining cooling fluid from the suction port 10 is cooled by exchanging heat with the high-pressure transformer 7 and the like in the machine room 3, and is also cooled through the air holes 1 of the outlet louver 11.
2 and each cut and raised piece 13 to exhaust the air to the outside of the machine.

However, the above-mentioned heating cooking device
As shown in the enlarged figure, the blowout louver 11 actually has a suction function as well as a blowout function for the heat-exchanged fluid.
The cut and raised pieces 13 extending in the same direction form an outlet hole that also serves as a suction hole on the inside of the casing body 1, and furthermore, the cooling fan 8
Cooling fluid flows into the machine room 3 through the vent hole 12 of the blow-off louver 11 located close to the cooling fan 8, while cooling fluid flows from the machine room 3 through the vent hole 12 of the blow-off louver 11 located away from the cooling fan 8. In addition, the exhaust fluid that has undergone heat exchange and the cooling fluid flowing into the machine room 3 are circulated and mixed on the outside of the outlet louver 11. Due to the above magnetron 5
There are drawbacks such as a significant decrease in the cooling efficiency of high-voltage transformers and other equipment.

In order to solve the above-mentioned drawbacks, the present invention provides a cooling fan inside the casing body 1, and provides cut pieces forming air vents in the casing body near the cooling fan. , each cut-and-raised piece is provided to form a blow-off vent facing each of these cut-and-raised pieces, thereby eliminating the circulation mixing effect of the cooling fluid and also improving the cooling efficiency. The purpose of this invention is to provide a heating cooking device.

Hereinafter, an illustrated embodiment in which the present invention is applied to a high-frequency heating device will be described. In addition, this invention
The same components as those in the above-mentioned specific example will be described with the same reference numerals.

4 and 5, reference numeral 1 denotes a box-shaped casing body, and inside the casing body 1 is an oven frame 4 that separates and forms an oven 2 and a machine room 3. It has been installed,
A well-known magnetron 5 and an air supply duct 14 are provided on one side of the oven frame 4. or,
An air supply hole 15 is bored in the oven frame 4 located on one side of the air supply duct 14, and the air supply hole 15 is designed to allow the fluid that cools the magnetron 5 to flow into the oven 2. It's summery.
Furthermore, the casing body 1 located at the front opening 2a of the oven 2 is provided with an openable/closable door 6, and the bottom plate 1a of the casing body 1 forming the machine room 3 is provided with a high voltage transformer 7. Electrical equipment such as

On the other hand, a cooling fan 8 is attached to the back plate 1b of the casing body 1 located behind the high voltage transformer 7 and the magnetron 5 via a bracket 9, and the casing to which this cooling fan 8 is attached A suction port 1 is provided on the back plate 1b of the main body 1.
0 is provided.

On the other hand, the side plate 1c of the casing body 1 located near the cooling fan 8, that is, the side plate 1c located behind the propeller (rotor blade) 8a of the cooling fan 8, is provided with a suction louver 1.
A wave-shaped cut and raised piece 18 forming a suction ventilation hole 17 forming part 6 is provided so as to protrude inwardly.

In addition, on the side plate 1c located forward of the propeller 8a of the cooling fan 8, a wave-shaped cut-out piece 21 that forms an air vent 20 for blowing that constitutes the blow-out louver 19 protrudes inward.
They are provided facing each other with respect to the cut and raised pieces 18 for suction.

Therefore, during cooking, by energizing the magnetron 5, the object to be cooked that has been inserted into the oven 2 in advance is heated and cooked by the magnetron 5, and at the same time, the cooling fan 8 is connected to the suction port. The magnetron 5 is cooled by heat exchange with the cooling fluid from 10. The heat-exchanged cooling fluid flows from the air supply duct 14 through the air supply hole 15 into the oven 2, and is exhausted from an outlet (not shown).

On the other hand, a part of the cooling fluid from the suction port 10 is cooled by exchanging heat with the high-pressure transformer 7 in the machine room 3, and passes through the blow-off pieces 21 and the ventilation holes 20 to the outside of the machine. Exhausted. Furthermore, the suction vent 1 is opened by driving the cooling fan 8.
The cooling fluid that has flowed into the machine room 3 through the cut pieces 7 and the cut pieces 18 cools the high-pressure transformer 7 and the like, and cools the blow-out pieces 21 and the ventilation holes 20.
is exhausted outside the aircraft through the

What should be noted here is that, as shown in an enlarged view in FIG. However, in order to prevent circulation and mixing on the outside of the casing body 1, each cut-and-raised piece 1 for suction is
8 and each cut and raised piece 21 for blowing out are formed facing each other.

Incidentally, although the present invention has been described with reference to a specific example in which it is applied to a high-frequency heating device, the design may be changed so that it can be used, for example, in an oven equipped with a built-in heating device without changing the gist of the present invention. Be free.

As described above, according to the present invention, the cooling fan 8 is provided inside the casing body 1, and each cut-out piece 18 forming the suction vent 17 in the casing body 1 near the cooling fan established,
Each cut and raised piece 2 facing each other to form a blowout vent hole 20 with respect to each cut and raised piece 18 for suction
1, the circulation mixing outside the machine is eliminated, which not only improves the cooling efficiency but also has excellent effects such as a simple configuration.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the heating cooking device that has already been proposed, Fig. 2 is a cross-sectional view of the same as above, Fig. 3 is an enlarged sectional view of the blow-off louver incorporated in the above-mentioned heating cooking device, and Fig. 4 is according to the present invention. FIG. 5 is an enlarged cross-sectional view showing the main parts of the present invention. 1...Casing body, 2...Oven, 3...
... Machine room, 4 ... Oven frame, 6 ... Magnetron, 7 ... High pressure transformer, 8 ... Cooling fan, 10 ... Suction port, 16 ... Suction louver, 1
7...Vent hole, 18...Cut piece, 19...Blowout louver, 20...Vent hole, 21...Cut piece.

Claims (1)

[Claims for Utility Model Registration] 1. A cooling fan is provided inside the casing body, cut-and-raised pieces forming suction vents are provided in the casing body near the cooling fan, and A heating cooking device characterized in that the casing body is provided with cut and raised pieces that face each other and form blow-out vents. 2. The heating cooking device according to claim 1, wherein each cut and raised piece is formed to protrude inward from the casing body in a wave-like manner.