JPS5852407Y2 - High frequency heating device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a high-frequency heating device in which the shape of the ceiling surface of the high-frequency heating chamber is improved.

Conventional high-frequency heating devices equipped with heater heating devices and steam heating devices have the disadvantage that during steam heating, steam condenses on the ceiling of the heating chamber and forms water droplets that fall onto the food, impairing the quality of food cooking. Ta.

Furthermore, even when browning food using a heater, there is a drawback in that it is difficult to brown food due to the water droplets.

This idea was made in consideration of the above circumstances, and its purpose is to form the ceiling of the high-frequency heating chamber into a concave spherical surface, and to make the diameter of the spherical part larger than the outer diameter of the annular heater. In this way, the present invention aims to provide a high-frequency heating device that prevents water droplets generated on the ceiling surface of a high-frequency heating chamber from falling onto foods.

-2 An embodiment of this invention will be described below with reference to the drawings.

1 in FIG. 1 is the main body.

A high frequency heating chamber 2 is provided inside the main body 1.

The ceiling surface 3 of the high-frequency heating chamber 2 is formed into a concave spherical surface, and the diameter of the spherical surface is larger than the outer diameter of the annular heater 4 provided opposite the ceiling surface 3 of the high-frequency heating chamber 2. is also formed large.

Further, a steam nozzle 5 is provided on the side wall of the high-frequency heating chamber 2 so that steam can be supplied into the high-frequency heating chamber 2 and food 6 can be heated with steam.

Furthermore, a magnetron 7 is provided on the side wall of the high-frequency heating chamber 2 to supply high-frequency waves into the high-frequency heating chamber 2.

A fan 8 is provided below the magnetron 7, which sucks air through an air suction port 9 provided on the bottom plate 1a of the main body 1, cools the magnetron 7, and then introduces it into the high-frequency heating chamber 2. It has become.

Further, a large number of pores 10 are provided in the flat part 3a of the ceiling surface 3 of the high-frequency heating chamber 2, and the main body 1
An exhaust duct 12 is provided that leads to an exhaust port 11 provided on the top plate 1a of the magnetron, and is useful for exhausting cooling air to the magnetron 7 during high-frequency heating and for exhausting steam during steam heating. .

The operation of this device configured as described above will now be explained.

When the steam nozzle 5 blows out steam generated by a steam generator (not shown) installed between the main body 1 and the high-frequency heating chamber 2, the steam that has been cooled comes into contact with the ceiling surface 2 of the high-frequency heating chamber 2. It condenses into water droplets W that descend along the inner wall of the ceiling surface 3 formed into a concave spherical surface and drop to a flat portion 3a.
It falls from the boundary part 3b.

In addition, water droplets W are generated around the exhaust duct 12 provided on the flat part 3a of the ceiling surface 3 of the high-frequency heating chamber 2, but these water droplets also descend along the inner wall of the duct 12, propagate through the flat part 3a, and pass through the boundary part 3b. fall from

Next, when switching to heater heating, since the ceiling surface of the high-frequency heating chamber 2 facing the heater 4 forms a concave spherical surface, this concave spherical surface is mirror-finished to direct the radiant heat of the heater 4 in the direction of the arrow. As shown, the food 6 is reflected and efficiently irradiated with radiant heat.

As mentioned above, since the exhaust duct 12 with a large number of pores 10 is provided in the flat part 3a of the high-frequency heating chamber 2, not only is the inside of the high-frequency heating chamber 2 completely ventilated, but also Water droplets W fall from the boundary 3b between the ceiling surface 3 of the high-frequency heating chamber 2, which is formed into a concave spherical surface, and the flat part 3a, and enter the machine room provided between the high-frequency heating chamber 2 and the main body 1, which are not shown in the drawings. There is no risk of insulation deterioration or rusting of component parts.

Note that FIG. 2 shows another embodiment.

That is, the high-frequency heating chamber 13 has a flat portion 14a of the ceiling surface of the high-frequency heating chamber 13 inclined toward the center of the main body with respect to the side wall 13a of the high-frequency heating chamber 13, and is formed into a concave spherical surface with the flat portion 14a. There is a protrusion 1 on the boundary with heaven 14.
5 is formed.

This flat portion 14a has many pores 16...
・A perforated exhaust duct 17 is provided, and the top plate 18 of the main body is
The air can be exhausted from an exhaust port 19 provided in the air.

As shown in the above embodiment, the flat part 14a is inclined and the protruding part 15 is formed, and water droplets adhering to the flat part 14a and the concave spherical surface 14 concentrate on the protruding part 15 and fall along the inclined surface 14a. This eliminates the risk of it falling onto food.

Since water droplets adhering to the inner wall of the exhaust duct 17 also concentrate on the protrusion 15 along the inclined surface 14a, the risk of entering the inside of the machine room and causing insulation deterioration or rust on the component parts is further reduced.

As explained above, since the ceiling surface of the high-frequency heating chamber is formed into a concave spherical surface and the aperture of this concave spherical surface is made larger than the outer diameter of the annular heater installed opposite the ceiling surface, water droplets adhering to the ceiling surface are Since the particles concentrate on the boundary between the spherical surface and the flat part, they do not fall onto the food.

Therefore, the quality of cooking is improved.

Further, since water droplets do not adhere to the ceiling of the high-frequency heating chamber, cleaning becomes easy and wasteful power consumption for heating water droplets can be prevented.

In addition, since the ceiling surface acts as a reflecting mirror when the heater is heating, the food is easily browned and the thermal effect is improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal side view of one embodiment of this invention, and FIG. 2 is a longitudinal side view of another embodiment. 1...Main body, 2...High frequency heating chamber, 3
・・・・・・High frequency heating chamber ceiling surface, 4・・・・・・Annular heater.

Claims (1)

[Scope of utility model registration request] A main body, a high frequency heating chamber provided inside the main body,
In this apparatus for cooking food by steam heating, the ring-shaped heater is provided opposite to the ceiling surface of the high-frequency heating chamber, and the ceiling surface of the high-frequency heating chamber is provided with a concave hole having a diameter larger than the outer diameter of the heater. A high-frequency heating device characterized by a spherical shape.