JPS5932774A - 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 in which a thawing chamber using high frequency heating is installed in the refrigerator compartment, and in particular improves the cooling efficiency of electrical components such as magnetrons that generate microwaves (high frequency waves), and improves the thawing capacity in the thawing chamber. Regarding refrigerators that allow for the rise of

In recent years, with the spread of refrigerator-freezers, it has become common to freeze food for long-term storage. On the other hand, these frozen foods have been defrosted by natural defrosting or by applying high-frequency heating equipment for cooking. This method requires a heating device, takes up a lot of space, and is expensive. With these points in mind, it has been considered to integrate a refrigerator-freezer and a high-frequency heating device into an integrated structure.

By the way, in general, when defrosting ice, it is said that if the ice is simply exposed to radio waves, the radio waves will be absorbed due to the low dielectric constant of ice, and food will be thawed better if ice is thawed while applying cold air.

In addition, the magnetron, high-voltage transformer, high-voltage condenser, etc. of the high-frequency heating device need to be cooled during oscillation, and a motor fan is usually installed to cool them, but since they draw in outside air, there is a large amount of There is also the problem that the fan and fan motor must be made larger.

This invention was made in view of these circumstances, and its specific configuration is that a thawing chamber and a radio stirring chamber with a built-in stirrer are installed inside the refrigerator compartment, and electrical components such as a magnetron and a cooling device for the electrical components are installed outside the refrigerator compartment. We installed electrical equipment and a room with an exhaust port to house the blower, and also installed a waveguide to guide the microwaves from the magnetron to the radio stirring chamber, and an intake duct to guide outside air to the thawing chamber in the refrigerator room. It is installed through the wall, and when the cooling blower operates during thawing, outside air is sucked in from the intake duct, passed through the thawing chamber, the radio stirring chamber, the waveguide, and the 7U chamber, and then exhausted from the MiJ exhaust port. It is a configured refrigerator.

That is, this invention attempts to increase both the cooling efficiency of electrical components and the ability to defrost frozen foods by introducing outside air into the thawing chamber during thawing and discharging the outside air through the electrical equipment room. It is something to do.

The present invention will be described in detail below based on embodiments shown in the figures. However, this invention is not limited by this.

First, in Figure 1, a refrigerator-freezer (1) has a freezer compartment (2) and a refrigerator compartment (3) at the top and bottom, and a thawing compartment (4) for frozen foods is installed in the upper part of the refrigerator compartment. ing.

The microwave is supplied into the thawing chamber (4) from a magnetron (6) installed in the electrical equipment room (5) outside the refrigerator through a waveguide (7) and a radio wave attached to the thawing chamber (4). This is done through a stirring chamber (8).

Note that (9) is a door for the freezer compartment, and 00 is a door for the refrigerator compartment.

In Figures 2 and 3, (11) is an intake duct installed through the wall of the refrigerator compartment to introduce outside air into the thawing compartment (4). It extends integrally to the outside of the refrigerator from a through hole (14, punched hole) in the rear wall of the cavity OJ. Next, 0ω is a radio wave transparent partition plate that partitions the cavity 0J of the thawing chamber (4) and the radio wave stirring chamber (8), and has a plurality of through holes 000'71 and 000'71 on the IjiT side.
It forms... The mark is a stirrer (fanf) rotatably supported in the radio stirring chamber (8).
0! 1) is a through hole (punching hole) formed at the inner end of the electrical equipment chamber (5) of the waveguide (7), and 1) is a drain hole.

On the other hand, in the electrical equipment room (5), in addition to the magnetron (6), there are electrical components (power supply components) such as a high voltage transformer (20) and a high voltage capacitor (2]), as well as a blower for cooling these electrical components. is stored there.
is the discharge side duct of the blower@, (24) is the exhaust port of the duct, and (2) is the blower motor.

f, ni'F; (4) is the meat [111
(27) corresponds to the through holes 161 +171... of the cavity 0 moat, and (to) the same (through holes). This is a through hole portion corresponding to the hole portion (14).

(Fl￥When freezing, this is the blower in the electrical equipment room (5)
(11) operates to draw outside air into the thawing chamber (4).
) to help defrost frozen foods. The outside air cooled by the thawing is passed through the radio stirring chamber (8) to rotate the Stuff-08), and further passes through the waveguide (7) to the electrical equipment room (
5), each electrical component +6+ (20) +211
to cool down. Of course, microwaves are generated from the magnetron (6), and the microwaves pass through the waveguide (7) and reach the radio stirring chamber (5), where they are uniformly distributed in the thawing chamber (4) by the rotation of the stirrer (IR) as described in 11iT. ) Frozen foods (2)
is irradiated to thaw the frozen food evenly.

In this way, by applying outside air to frozen foods in addition to heating with microwaves, the thawing ability is increased, and the outside air that is cooled by the thawing is used to
6), high voltage transformer (2o), high voltage capacitor (21)
By cooling electrical components such as, the cooling efficiency increases compared to direct exposure to outside air.

In addition, in the above embodiment, the air used for cooling the electrical components is only the outside air that has passed through the thawing chamber, but in reality, there are cases where this alone is not sufficient.In this case, the air used for cooling the electrical components is For example, a combination of the outside air that has passed through the thawing chamber and the outside air that is directly sucked in through the suction port formed in the electrical equipment room can be used.

Further, in the above embodiment, the thawing chamber is installed in the refrigerator compartment of the freezer, but the thawing chamber of the present invention can also be installed in a refrigerator separate from the freezer. Furthermore, the stirrer cannot be rotated by sucking outside air, but it can also be rotated by the stirrer Tanabata.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional functional explanatory diagram of an embodiment of the present invention and a refrigerator-freezer mentioned in Section 17, Fig. 2 is an enlarged sectional view of its main parts, and Fig. 3 is an I-I'…■ side view thereof. . (1)...refrigerator, (3)...refrigerator λ(,(
4)... Thawing chamber, (5)... [, Bag room,
(6)...Magnetron, (7)...4m tube, (8
)... Wave stirring chamber, Oll... Intake duct, 0
2... Refrigerator wall, 0 ladder - starrer, @...
Blower 0 1st question

Claims (1)

[Scope of Claims] 1. An electrical system in which a thawing chamber and a radio stirring chamber with a built-in stirrer are installed in the refrigerator compartment, and electrical components such as a magnetron and a blower for cooling the electrical components are housed outside the refrigerator compartment and are provided with an exhaust port. A waveguide was installed to guide microwaves from the magnetron to the radio stirring chamber, and an intake duct was installed through the wall of the refrigerator chamber to guide outside air to the thawing chamber.
7. When the FrIJ cooling blower operates during thawing, outside air is sucked in from the intake duct and sent to the thawing chamber, radio wave IM,',
A refrigerator configured to cool air from the exhaust air [ ] through a waveguide and an electrical equipment room in i, , j141. A patent claim in which a stirrer fan is rotated by outside air sucked from an intake duct. The range of item 1 f of the refrigerator described above.