JPH086399Y2 - High frequency heating equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a high-frequency heating device having a fixed object mounting base.

2. Description of the Related Art Conventionally, a high-frequency heating device having a fixed object mounting base has a gap formed between the periphery of the object mounting base and the heating chamber from which steam or juice from the object to be heated is mounted. For example, molded rubber of low dielectric constant silicon or putty is filled so as not to fall under the table. It seems that there is almost no problem with this silicon filling to prevent steam and juice from the heating target from falling under the heating target placement table, but in reality there is distortion of the heating chamber facing the filling. There are partial gaps due to dents, and gaps caused by damage to the filling material of the heating table caused during use of the high-frequency heating device. Such a gap is slight and almost invisible to the user of the high-frequency heating device. Therefore, the dirt from the object to be leaked from such a gap may be unknowingly accumulated under the object-to-be-heated table and may be overheated by a high frequency and possibly ignite. The possibility of accumulation of a large amount of such deposits and the possibility of ignition may not be a problem if the high-frequency output of a household high-frequency heating device is about 700 W, but it is often used for commercial purposes. Further, when the high frequency output exceeds 1 kW, deposits tend to accumulate in the heating chamber and the high output easily causes heating, which poses a problem.

A conventional example will be described below with reference to FIG. FIG. 2 is a side sectional view of the inside of a conventional high-frequency heating device.
As shown in the figure, the object 7 to be heated is put in the heating chamber 1, the door 4 is closed, the high frequency wave generated in the magnetron 2 is guided by the waveguide 3 and is put into the heating chamber 1, so that the object 7 to be heated is heated. Below the heating chamber 1 is a radio wave stirrer 8 for improving the heating distribution.
There is. The heating chamber 1 has a heating target placing table 6 which covers the radio wave agitator 8 and is fixed at a position where the radio wave agitator 8 has a radio wave agitating effect. This heating target placing table 6 is made of a material that allows high-frequency waves to pass through, such as ceramic, and is fixed between the heating chamber and the heating chamber 1 so that juice from the heating target 7 falls to the side where the radio wave agitator 8 is located. It is filled with 11 so that it does not exist.

DISCLOSURE OF THE INVENTION Problem to be Solved by the Invention However, in this configuration, the filling material 11 is made to be in close contact with the wall surface of the heating chamber 1, but the heating chamber 1 is actually formed.
It is difficult to completely eliminate the partial gaps due to the distortion and dents on the wall surface of the container, or the gaps due to the damage of the filling material 11. Therefore, the dew drops 12 due to the object to be heated 7 and the like pass through the resulting gaps. The deposit 13 accumulates on the bottom of the heating chamber 1. If left unattended, especially in the case of a commercial high-frequency heating device, the deposit 13 is higher than the household one because it has a high output and is used many times. It is easy to accumulate and the heating speed of the deposit 13 is fast. Therefore, in some cases, the deposit may not only be overheated but may be ignited. When the filling material 11 on the outer periphery of the heating target mounting table 6 is greatly damaged, a large amount of liquid spilled on the heating target mounting target 6 from the damaged part is heated in the heating chamber 1.
There is a problem that it may be dangerous because it may flow to the bottom surface of the electric wave agitator 8 and pass through the shaft 10 of the electric wave agitator 8 to the motor 9 for rotating the electric wave agitator 8 to cause deterioration of the insulation of the motor 9.

Therefore, the present invention solves the above-mentioned conventional problems.
Liquid such as juice of the object to be heated that enters through a gap caused by poor adhesion of the filler attached to the outer periphery of the object mounting table to the wall surface of the heating chamber, or a gap due to damage of the filler. Furthermore, so that it does not remain in the heating chamber,
A high frequency wave is installed so that it does not reach through holes that are used for electrical parts such as motors provided on the bottom of the heating chamber, so that insulation deterioration of electrical parts or deposits due to invading liquid will not cause overheating and ignition. A heating device is provided.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a heating object mounting table fixed in the heating chamber of a high-frequency heating device and faces the outer periphery of the heating object mounting table on the bottom surface of the heating chamber. A portion is provided with a hole for discharging leakage of liquid such as juice of the object to be heated to the outside of the heating chamber, and a convex rib is provided between the central portion of the bottom surface of the heating chamber and the hole for discharging the liquid. is there.

Action With the above configuration, the liquid such as juice of the object to be heated that leaks from the gap formed between the filling on the outer periphery of the object to be heated table and the wall surface of the heating chamber and falls under the object to be heated table is heated in the heating chamber. It is discharged to the outside of the heating chamber from a hole provided on the bottom surface of the object facing the outer periphery of the object-to-be-heated table. Since this discharge hole faces the outer circumference of the heated object mounting table, liquid such as juice leaking from the outer periphery of the heated object mounting table immediately reaches the discharge hole opened on the bottom surface of the heating chamber when it drips from the heating chamber wall surface. Therefore, it is discharged to the outside of the heating chamber without accumulating on the bottom surface of the heating chamber. A convex rib is provided between the center of the bottom surface of the heating chamber and the hole for discharging the liquid so that the liquid does not reach the center of the bottom surface of the heating chamber. For this reason, deposits due to liquid such as juice will not be generated in the heating chamber, and the liquid such as juice will reach the outside of the heating chamber before the liquid reaches the through holes communicating with the electric parts such as the motor provided on the bottom surface of the heating chamber. Can be discharged to. Therefore, it is possible to prevent overheating or ignition of the deposit and deterioration of the insulation of the electrical components adjacent to the through hole on the bottom of the heating chamber.

Embodiment An embodiment of the high-frequency heating device of the present invention will be described below with reference to the drawings.

FIG. 1 is a side sectional view of the inside of a high-frequency heating apparatus showing an embodiment of the present invention.

The same elements will be denoted by the same reference symbols and detailed description thereof will be omitted. The heating chamber 1 has a fixed object mounting table 6, and a space between the object mounting table 6 and the heating chamber 1 on the outer circumference is filled with a low dielectric constant with respect to a high frequency such as silicon rubber.
Filled with 11. The dew drop 12 and spilled juice on the wall surface of the heating chamber, which is generated by heating the object 7 to be heated on the object placing table 6 and generating steam, are filled by the distortion of the wall surface of the heating chamber 1 or the like. The liquid that leaks under the object-to-be-heated table 6 due to a gap between the object 11 and a gap formed by the damage of the filling 11 should face the outer periphery of the object-to-be-heated table 6 on the bottom surface of the heating chamber 1. From the discharge hole 14 provided in the heating chamber 1
To discharge more. The discharge hole 14 is provided on the object mounting base 6
Since it is provided so as to face the outer circumference of the heating target, the liquid leaking from the clearance close to the clearance generated on the outer circumference of the object mounting table 6 is immediately discharged from the discharge hole 14 to the outside of the heating chamber.
Therefore, the liquid leaking from the gap does not accumulate in the heating chamber 1 and the evaporated material does not accumulate, and the possibility of overheating and ignition of the deposit in the heating chamber 1 also disappears. Further, by providing a convex rib 15 between the central portion of the bottom surface of the heating chamber 1 and the liquid discharge hole 14, the heating chamber 1
Shaft 10 of the radio wave stirrer 8 provided around the center of the bottom surface of the
The liquid leaking from the above-mentioned gap to the through hole is discharged to the outside of the heating chamber 1 from the discharge hole 14 before reaching the through-hole, so that the above-mentioned leaking liquid to the motor connected to the shaft 10 is discharged. Since it is not applied, the insulation of the motor is not deteriorated.

Effects of the Invention As is clear from the above description of the embodiments, the high-frequency heating device of the present invention can obtain the following effects.

(1) The liquid leaking under the object-to-be-heated table can be immediately discharged to the outside of the heating chamber simply by forming a discharge hole in a portion of the bottom surface of the heating chamber facing the outer circumference of the fire-heated object-mounting table. It is possible to prevent the deposit from being heated or ignited by remaining in the heating chamber.

(2) If there is a shaft through-hole such as a radio wave stirrer on the bottom of the heating chamber and there is an electric part such as a motor under the hole, it leaked from the through-hole to the above-mentioned object mounting base. Although it is necessary to prevent the liquid from flowing out, as described above, the liquid leaking under the object mounting base can be immediately discharged to the outside of the heating chamber, and the central portion of the heating chamber bottom and the hole for discharging the liquid Even if there is a through hole due to the convex rib provided between the ribs, the leaked liquid can be prevented from reaching the electric parts, and there is no fear of deterioration of insulation.

[Brief description of drawings]

FIG. 1 is a side sectional view of a high frequency heating apparatus according to an embodiment of the present invention, and FIG. 2 is a side sectional view of a conventional high frequency heating apparatus. 1 ... Heating chamber, 6 ... Heated object mounting table, 11 ... Filling material,
12 …… Dewdrop, 13 …… Deposit, 14 …… Discharge hole.

Claims (1)

[Scope of utility model registration request] 1. A fixed object-to-be-heated table is provided in a heating chamber of a high-frequency heating device, and liquid such as juice of the object to be heated is leaked to a portion of the bottom surface of the heating chamber facing the outer periphery of the object-to-be-heated table. A high-frequency heating device having a hole for discharging to the outside of the heating chamber and a convex rib provided between the central portion of the bottom surface of the heating chamber and the hole for discharging the liquid.