JPS5812977A - 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 equipped with a high-frequency heating device for thawing frozen foods and the like.

In recent years, frozen foods have made significant inroads into the food market, and along with this, various types of refrigerator-freezers with a freezing storage function have been developed for refrigerators used at home. Here, the thawing method when cooking frozen foods stored in the freezer is refrigeration.

There are two methods: thawing the food naturally by blocking it or moving it outside the refrigerator, and thawing it immediately using a high-frequency heating device such as a microwave oven.

However, the former method requires a lot of time, the latter method requires a high price for a microwave oven that also has a cooking function, and there are no microwave ovens specifically designed for defrosting on the market. is the current situation.

Therefore, the present invention incorporates a high frequency heating chamber for thawing into a refrigerator to provide a refrigeration rate that allows frozen foods to be thawed in the refrigerator. - Hereinafter, one embodiment of the present invention will be described based on the drawings. (1) is a refrigerator main body, and the inside of the refrigerator is divided by a partition wall (2) into a freezing compartment (3) and a refrigerating compartment (4), which serve as storage compartments at the top and bottom, respectively. (51 is a machine room that houses the compressor (61, etc.) at the bottom of the refrigerator body. (7) is a freezer door that closes the front opening of the freezer compartment (3), and (8) is a pocket inside. ) (8&) is the refrigerator compartment door that closes off the refrigerator compartment (4). (91 is a container installed in the lower part of the refrigerator compartment (4) to store vegetables etc. (IG is the partition wall (2) ) and the bottom wall (3) of the freezer compartment (3)
A cooler is installed in the cooling room aD formed between (4) is blown from a cold air outlet α having a damper device (not shown) to cool the inside of the refrigerator.The company is an ice making device installed near the cold air outlet of the duct U3.

As will be detailed later, the cry is a high-frequency heating chamber that is also used as a thawing chamber to defrost frozen foods using high-frequency waves. A radio-wave stirring chamber αη is provided.

The device is a high-frequency generator consisting of a magnetron oscillation unit α9 and a magnetron power supply (a), and in this embodiment, the cooling fan is installed in the machine room (51) on the compressor stand along with the cooling fan for the compressor (6). It is fixed in line with the compressor (6) of the system, and the heating chamber a mentioned above is
(A waveguide circuit (c) for transmitting radio waves to the radio wave stirring chamber αη of 9 is provided and constructed. This waveguide circuit is formed of a waveguide made of a hollow metal tube as shown in the figure, for example, and A refrigerator housing a condenser (goods) (the refrigerator is located behind the stirring chamber Uη through the exhaust duct (c) on the back side of υ) is connected to the stirring chamber Uη by passing through from the generator side.

Now, FIG. 2 shows an exploded perspective view of the heating chamber aa. (2) has a front opening made of a metal or other high-frequency radio wave reflecting material, and from that opening, the upper surface is made of a low dielectric constant resin, etc., and the storage is molded with an opening. Plate ■ is inserted. A door (to) including a handle □ is attached to part 911 of the storage tray ■.

Figures 3 and 4 are cross-sectional views of the heating chamber (161);
Shows the state in which the support (support) is stored. 6υ is a front plate of the defrosting chamber door, and 021 is a choke dielectric for preventing radio wave leakage, which is provided around the entire circumference of the defrosting chamber door.

(to) is a door punching plate that reflects radio waves at the front of the cavity (to). A large number of cold air circulation holes (26a) are drilled in the rear wall of the cavity (toward) at a position opposite to the cold air outlet and in the front part of the ceiling wall.
Along with 1, there are also cold air circulation holes (
A through hole (28m) is drilled at a position corresponding to the hole (26m).Thereby, the cold air discharged into the refrigerator compartment (4) passes through the rear cold air circulation hole (26a) and reaches the through hole (2Sa) of the storage tray.
It enters the heating chamber QGl from the cold air circulation hole (
26a) Carry out circulation with outflow. Here, the cold air circulation hole (26&) is connected to the wavelength χ of high-frequency radio waves used for defrosting, etc.
The diameter of the hole is sufficiently smaller than 170 mm. Therefore, since these holes exhibit a very large impedance to radio waves of that frequency, there is very little leakage of high frequency radio waves from the cold air circulation holes (26a).

The top opening of the radio wave stirring chamber aη is closed 111 with a cover (41) made of a high-frequency transmitting member made of synthetic resin, etc., and the bottom and side surfaces are provided with the above-mentioned cold air circulation holes (holes (17a) having the same effect as 26 Toge). ) are perforated, and inside is a starruff fan made of metal that is driven by a motor and reflects radio waves, and its rotation sucks in air from below and discharges it to the sides. This stirs the cold air in the refrigerator compartment (4).

On the other hand, the high-frequency radio waves emitted from the high-frequency generator 18 in the machine room (5) through the waveguide circuit ■ to the stirring chamber (17+) are reflected by the stirrer fan (to), and are transmitted to the radio-wave stirring chamber αη and the cavity (to). A high frequency transmitting member such as a synthetic resin, which is agitated as shown by the bent arrow in Fig. 3, passes through the cover (41) that partitions the inside of the cavity and enters the cavity, as shown by the bent arrow in Figure 3. Frozen food (Al
Perform cooking such as defrosting food. Here, − is a switch box that detects that the storage tray (to) is stored in the cavity (to) circle, and when the storage tray (■) is pulled out from the cavity cover, the operation of the high frequency generator (ζ) is stopped at the same time. This prevents radio waves from leaking from the opening (5) of the opening (5) at the moment the storage tray (support) is pulled out of the cavity (E). - The waveguide circuit includes a power supply part (2'3 A) rising from the high frequency generator 'II along the back wall of the refrigerator body, and a dielectric part (23B) extending backward from the stirring chamber 0η of the heating chamber αe. It consists of a plurality of waveguide elements (23A) (23a), and a dielectric part (23B).
The connection between the and the power feeding section (25k) is as shown in FIG.
is the dielectric part (25B) of the choke coupling (to) part and the feed part (
This is an electrical insulator interposed between 23AJ.

The basic body of the heating chamber αe provided with the cavity is removably disposed on both side walls of the refrigerator compartment (4), and can be taken out from the refrigerator compartment (4). The choke joint (to) may be located within the refrigerator compartment (4),
Considering the intrusion of dew water and workability, it is desirable to install it outside the refrigerator body (1).

FIG. 5 shows a schematic view of the machine room (5) at the bottom of the refrigerator Ill as seen from the rear. The compressor (6) is connected to the refrigerator main body (1
) is fixed to the compressor stand @, which also serves as the rear legs, via anti-vibration rubber. In addition, in the present invention, the magnetron oscillation part α■ of the high frequency generator 11, the magnetron power supply unit ■, and the cooling fan of the compressor 161 are fixed together on the compressor stand @ while maintaining the weight balance with the compressor (6). has been done. This eliminates the need for a separate frame or the like to fix the relatively heavy high-frequency generator to the refrigerator body 13, making repairs easier and improving work efficiency.

In addition, since it is also used as a compression 1AlB cooling fan to cool down the high frequency generator that generates high heat during operation, there is no need for a separate cooling device, making it economical and workable. We can expect improvement.

In the present invention, holes (17
In addition, Starahuan Island is a turbo fan made of radio wave reflective material such as metal, and as it rotates, radio waves pass through the upper cavity (a) and are reflected, and the air The blades are shaped so that the air is sucked into the radio wave stirring chamber (alpha) through the hole (17) from below and discharged again into the refrigerator room (4) through the hole (17 m) on the side, so that the stirrer fan stirs the radio waves. This promotes the thawing of the food (^) in the heating chamber ue, and at the same time circulates cold air near the top of the refrigerator compartment (4) to promote uniform cooling within the refrigerator compartment (4).Thereby, the heating during thawing is The heat influence on the refrigerator compartment (4) from room 1 [D] is minimized, and at the same time
The temperature distribution within 1 is also made uniform.

In addition, there are cold air circulation holes (26α) (26α) in the cavity (toward).
)... is omitted, and a cavity needle is formed using a thermally conductive material to connect the high-rise heating chamber to the cold air inside the refrigerator room (4).
, 1 may be used for indirect cooling.

However, in this case, an additional configuration for removing warm air accumulated in the high-frequency heating chamber 061 is often required.

As explained above, the present invention installs a high-frequency heating chamber in the refrigerating chamber of a refrigerator, so that frozen foods can be immediately thawed in the heating chamber during cooking, making it economical and eliminating the need for a separate microwave for thawing. It is true.

Furthermore, the stirrer fan installed in the radio stirring chamber, which is separated from the heating chamber through a cover, etc., forcibly stirs and circulates the cold air in the refrigerator compartment, eliminating the need for a special fan for circulating cold air and reducing the number of parts. At the same time, since the wave agitation chamber at the top of the refrigerator room, where warm air tends to accumulate, is closed off with a high-wave permeable cover, the hot air inside the cavity is not directly agitated into the refrigerator room. In addition, it is possible to prevent juices from the food during thawing and cooking from dripping into the refrigerator compartment through the radio stirring chamber. Furthermore, food after thawing can be refrigerated and stored as is, thereby preventing deterioration of the food.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a cross-sectional view of the red-yellow brochure of the present invention. Fig. 2 is an exploded perspective view of the thawing chamber. 4 is an enlarged view of the main parts, FIG. 5 is a schematic rear view of the machine room, and FIG. 6 is a partially cutaway sectional view of the main parts. ue...High frequency heating chamber, Uri...Radio stirring chamber, ■Product star rough fan.

Claims (1)

[Claims] 1. A high-frequency heating chamber consisting of a cavity, a radio wave stirring chamber, etc. is provided in the refrigerator compartment, and the front distribution wave stirring chamber is divided between the cavity and a second cover that is transparent to high frequency waves, and the high frequency heating chamber from the high frequency generator is Star rough that reflects radio waves and supplies them to the cavity! A refrigerator characterized in that the refrigerator is configured to also perform forced circulation of cold air in the refrigerator compartment in the rough air.