JPS5888583A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refrigerator C equipped with a 1IVp device for defrosting frozen foods.

In recent years, frozen foods have made significant inroads into the food market.

Accordingly, various types of frozen HWIl having a freezing storage function have been developed for cold HWIl used at home. Here, when cooking frozen foods that have been stored frozen in the freezer, there are two ways to thaw them: move them to a cold room or outside the refrigerator and let them thaw naturally, and move them under high-frequency heating using a microwave oven (more immediate). There is a way to unzip it.

However, the former method (according to the first method) is time-consuming, and the latter method C: microwave ovens that also have cooking functions are expensive, and microwave ovens exclusively for defrosting are not available on the market. The one that has not been done is Rijo.

Therefore, in the present 4th century, a high-frequency heating chamber for thawing was installed inside the refrigeration layer (C), and a high-frequency generator was installed outside the layer (=high-temperature).
The purpose of the present invention is to provide a refrigerator in which the two waveguides are connected by a waveguide, and dew on the inner wall of the waveguide is prevented.

An embodiment of the present invention will be described below based on the drawings. (1
) is the ma of the outer box (1m) and inner box (14) in the refrigerator body.
t: A heat insulating box is formed by foaming and filling the heat insulating material (10) on-site. Atsushii is vertically C:? by the partition wall (2).
It is divided into a III freezer room (3) and a refrigerator room +4).

(5) is a machine room located at the bottom of the refrigerator body (1) that houses the compressor (6) and the like. What about (7)? ! #lK room “3)
The freezer compartment door that closes the front opening ((8) is blurred on the inside)
(8a) and is a refrigerator compartment door that closes the refrigerator compartment (4). What about (9)? @Bachamber f4) Pg This is a container provided at the top and bottom for storing side dishes, etc. dG is the partition wall (2) and the freezer compartment (3).
) is installed in the cooling chamber U formed between the bottom wall of (3)
sent to.

Further, air is blown into the refrigerator compartment C4) from a cold air outlet a4 having a damper device (not shown) to cool the inside of the refrigerator. aB is an ice making device installed near the cooling outlet of the duct.

As will be explained in detail later, α is the thawing M chamber as a high-frequency heating chamber that thaws frozen foods using high-frequency waves, and α is the refrigeration chamber (4
) is placed in front of the cold air outlet.
Lower section: A radio wave stirring NEij is installed, (to) is a high frequency generator consisting of a magnetron generator part ■ and a magnetron electric mvta (to), which is used together with the cooling fan (to) of the pressure generator (6). For example, 'machine'! ! 15) Compress the refrigeration system on the compressor stand υ inside! 61, and there is a waveguide for sending radio waves from this high frequency generator (to) to the radio wave stirring chamber surface of the thawing chamber α.

Now, FIG. 112 shows an exploded perspective view of the thawing chamber. (to) is a cavity 4 molded from a high-frequency reflective material such as metal, which has an opening @ on the front surface, and an inner plate ( To)
is inserted. A thawing chamber door (toward) including a handle 4 is attached to the front part of the inner pan (to).

Figure 113 is a cross-sectional view of the thawing chamber (2), which shows the inside of the cavity (2) in which the inner tray (2) containing frozen food is stored. (2) shows the thawing chamber. S front plate, (
2) is a choke dielectric for preventing radio wave leakage, and is provided around the entire periphery of the defrosting chamber door. @ is cavity (
This is a door punching board that reflects radio waves on the front of the door. A large number of cold air circulation holes (26
a) is drilled, and accordingly, a through hole (28g) is also made in the rear wall of the inner plate (to) at a position corresponding to the cold air circulation hole (26a).
is drilled. As a result, the cold air discharged from the cold room A4) circulates from the back of the thawing chamber (2) to the upper part of the front of the thawing chamber (2), as shown by the arrow in Figure 112. The cold air circulation hole (26a) is a hole having a diameter sufficiently C2 smaller than 1/IO of the wavelength of high-frequency radio waves used for defrosting. Therefore, since these holes exhibit a very large impedance to radio waves of that frequency, leakage of high frequency radio waves from the cold air circulation holes (26) is very small.

The above-mentioned cold air circulation holes C are provided on the bottom and side surfaces of the radio stirring chamber.
A plurality of holes (17α) having the same effect as 26＠) are bored, and the interior i; is driven by a motor and houses a starruff lune (to) made of metal that reflects radio waves. By its rotation, air is sucked in from below and discharged from the side (2).
) with cold air agitation.

Meanwhile, J! ! The high-frequency radio waves emitted from the high-frequency generator (toward) in the machine room (5) to the stirring N surface through the waveguide are reflected by the stirrer fan ■ and enter the cavity (toward) 115.
The frozen food inside the cavity is thawed by stirring as indicated by the intermittent marks on the diagram.

h) at least a plurality of waveguide elements (25a) (25h
), and the connection between the dielectric part (254> and the power supply part (23g)) is a so-called choke connection (to) that can be inserted and removed from each other as shown in Figure 184. Dielectric part C254) and power supply part (256) mutual 1% flt:
It is a filtered electrical insulator.

The choke joint may be located in the refrigerator compartment (4), but if water and workability are taken into account, it may be placed through the hole P (To) and the stirring chamber fin of the thawing chamber a are connected, but the internal parts of the refrigerating chamber +4) are both cooled, and the stirring chamber ση circle C is open and low, so the inside of the cooling chamber 14) communicates with the cold air of Therefore, cooling operation C = accompanying cold room [4] or waveguide (to)
The moisture inside the waveguide condenses and water droplets adhere to the inner wall of the waveguide.I: Because water has a very high dielectric constant, the high-frequency radio waves emitted from the high-frequency generator is absorbed by this water droplet r and causes the water droplet to boil, resulting in C
2.The output of high frequency radio waves reaching zero sensation in the radio wave stirring chamber is attenuated. In addition, the water droplets may cause the high frequency generator (2)
Inner S: Penetrates and causes deterioration.

Therefore, the dielectric part (23k) 16 outer box (1a) and inner box (
A through hole (41) is bored in the wall located in the space C2 of 1k), and a flexible seal member (42) is provided so as to close the two-way hole (41) inside the hole (41). This extension member (42) is for example -
The side twill portion (4?) is fixed to the periphery of the through hole (41), and the through hole (41) can be opened and closed using that portion as a fulcrum. Therefore, when the undiluted solution of the heat material (1c) is injected, the pressure C2 causes the sealing member (42) to bend inward to the dielectric part (254) and open the through hole (41) as shown by the dotted line in FIG. The insulating material stock solution is also injected into the open waveguide. Here, the stirring chamber orbital side of the waveguide (to) and the high frequency generator (to) side g: are covers (5) (44
) The heat insulating material (1C) is also made of urethane 1i1111.4 which has a low dielectric constant and is transparent to high frequency radio waves. Now, use this llC and insulation material (1
When the stock solution of C) is injected, the following C=foaming is performed. At this time, the seal member (42) t;! The foaming pressure of this sowing pushes up the free end and closes the through hole (41), and the insulating material (45) inside the waveguide is hermetically sealed. . Here, if the sealing member (42) is made to reflect high frequency radio waves by attaching a metal foil or the like to at least the inner side of the waveguide (toward the waveguide), leakage of high frequency radio waves from this portion will be eliminated. In addition, the range of the waveguide insulating material (45) sealed in the waveguide (to) is at least the range from the opening to the outer box (1g ) ft is necessary.

The present invention is constructed as described above, and a high-frequency heating chamber is provided inside the cold room of the refrigerator, and a high-frequency generator that generates a relatively high temperature is installed outside the refrigerator, and the high-frequency radio waves from the high-frequency generator are converted into high-frequency waves through a waveguide. In a cold refrigerator configured to introduce a high frequency wave into a high frequency heating chamber through a radio wave stirring chamber provided in the heating chamber and thaw frozen foods in the heating chamber, high frequency waves are transmitted into the cavity of the waveguide. Since the heat insulating material is hermetically sealed, condensation inside the waveguide, which is cooled by the cold forging room temperature, is prevented.

This prevents a decrease in the output of high-frequency radio waves from the high-frequency generator and improves heating efficiency. Furthermore, water droplets do not enter the high frequency generator through the waveguide, thereby preventing deterioration. Furthermore, since the insulating material can be filled into the waveguide at the same time as the foaming and filling of the insulating material into the refrigerator box, work efficiency is significantly improved by C2.

[Brief explanation of drawings]

Each figure shows an embodiment of the present invention, and FIG. 1 is a side sectional view of a refrigerator, and FIG. 2 is an exploded perspective view of a thawing chamber. Figure IN3 is a cross-sectional view of the same, and Figure 4 is a side cross-sectional view showing the waveguide. (4)...cold room, αe...thawing chamber, G...stirring chamber, (to)...high frequency generator, (2)...waveguide, (41)... Through hole, (42)... Seal member, (45)... Waveguide internal insulation material. To Unexamined Japanese Patent Publication 1983.
-88583(4)

Claims (1)

[Claims] (1) A heat insulating box body is formed by filling an outer box, an inner box, and a foam heat insulating material that transmits high frequency radio waves between the two boxes.
i [Outside of the refrigerator that grows the refrigerator compartment and the refrigerator compartment 1: A high-frequency generator provided and a high-frequency radio wave from the high-frequency generator and a high-frequency radio wave from the high-frequency generator described above. A waveguide provided through the wall of the insulating box body to guide the high-frequency heating chamber t through the stirring chamber, and! 1r
A wall 6 of a portion located directly between the two boxes in the penetrating portion of the waveguide: a bored through hole. and a V-ru member made of a high-frequency radio wave transparent material provided with a trench to close the through hole from the inside. A refrigerator characterized in that the through hole is closed by the pressure of the foamed sow.