JPH03113262A - Refrigerator - Google Patents

Abstract

PURPOSE:To prevent the efficient capacity of a refrigerator room from decreasing and eliminate particular attachments by providing a deodorizing apparatus, comprising an ozonizer and an ozone decomposing catalyst and the like, in a vent passageway in which a cold air flows through a damper. CONSTITUTION:A case 63 occupies a portion of a vent passageway 62 and is spaced apart from a partition wall 58. A front heat insulating panel supports a protruding wall 72 extending upwardly from the side wall of the case 63 on the side of the partition wall 58, thereby separating the vent passageway 62 into right and left portions and forming the vent passageway 73 on the side of the partition wall 58. The fact that a deodorizing apparatus D comprises catalysts and the like results in increasing its flow resistance. If a whole cold air ejected from a supply opening 17 passes through the deodorizing apparatus, it is impossible to sufficiently supply the cold air to an refrigerator room. For this reason, the vent passageway 73 allows a part of the cold air ejected from the supply opening 17 to be directly supplied to the refrigerator room for sufficient cold air.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a refrigerator equipped with a deodorizer that deodorizes the inside of the refrigerator using ozone.

(B) Conventional Technology Conventionally, for example, in a refrigerator, various malodorous components such as hydrogen sulfide, trimethylamine, or methyl mercaptan are emitted from stored foods, which may cause users to feel disgusted or cause the malodor to transfer to other foods. There was a drawback that it spoiled the flavor.

Therefore, in the past, an ozone deodorizer was installed in the duct, as disclosed in Japanese Patent Application Laid-Open No. 62-102072, for example.

Such a deodorizer has a large volume because it has an ozone generator, an ozone decomposition catalyst, etc. as disclosed in Japanese Utility Model Application Publication No. 62-9440, and if it is installed in a duct as in the former publication, the effective volume inside the refrigerator can be reduced. There's no need to narrow it down.

(8) Problems to be Solved by the Invention If the deodorizer is disposed within the duct as described above, the deodorizer must also be incorporated when assembling the heat insulating box, which poses a problem in workability. Further, since the ozone generator is a discharge electrode, it has a limited lifespan and failures may occur. In such a case, if it is installed in the duct as described above, there is a drawback that replacement and repair work is difficult or impossible.

The present invention aims to solve this problem.

(D) Means for Solving the Problems The present invention provides a refrigerator having an air outlet for supplying cold air into a storage room, a damper device for opening and closing the air outlet, and a damper cover covering the damper device. A deodorizer having an ozone generator, an ozone decomposition catalyst, etc. is installed in the ventilation path formed inside the damper cover and through which cool air passes through the damper device.

(*) Function According to the present invention, since the deodorizer is installed inside the damper cover, the effective volume inside the refrigerator is not narrowed, and special fittings can be eliminated. In particular, the deodorizer can be easily installed and removed by removing the damper cover.

(f) Embodiments Next, embodiments will be explained with reference to the drawings. Figure 1 shows the deodorizer (
FIG. 2 is a front view of the refrigerator (1) in section D); FIG. Damper for refrigerator (
21) shows longitudinal cross-sectional views of the refrigerator (1).

In the drawing, (1) constitutes an insulating box body (5) that opens forward by filling insulating material (4) (e.g. polyurethane foam) between the outer box (2) and the inner box (3) using an on-site foaming method. The inside of the refrigerator is divided into upper and lower parts by an insulating partition wall (6), with the upper part being the freezer compartment (7) and the lower part being the refrigerator compartment (8). A cooler (10) is housed in the configured cooling chamber (9), and a suction type turbo blower (12) faces the cooler (10) on the back wall of the insulating box body (5) behind it. installed. (13) is a duct for the freezer compartment formed to extend upward from the blower (12) portion, and opens into the freezer compartment (7) at the air outlet (14).

Also, from the blower (12) part is the refrigerator compartment duct) (15
) and ice room duct) (16) are branched downward and extend in parallel, and the inner box (3) on the back wall of the refrigerator compartment (8) is connected to the air outlet (
17) and (18) respectively. Both dampers (21) and (22) are connected to this air outlet (17).

(18) respectively, the damper for the cold room (21) opens and closes the air outlet (17), and the damper for the ice room (22) opens and closes the air outlet (18), respectively. (2
3) is a damper cover, which covers both dampers (21),
(22) is attached from the inside of the refrigerator so as to cover it.

(24) is a duct member that touches the lower end of the damper cover (23) and extends downward from the back wall of the inner box (3), and has a refrigerator compartment passageway (25) and ice cubes formed by dividing the inside. The upper end of the greenhouse passageway (26) is the discharge port (27) at the lower end of the damper cover (23).

(28) respectively, and the refrigerator compartment passageway (25).
The bottom end is sealed.

The lower part of the refrigerator compartment (8) is partitioned by partition front members (30) and (31) and partition plates (32) and (33) installed behind them, respectively.
) An upwardly open container (34) is disposed between them, and the interior is used as an ice room (35).A upwardly open container (36) is disposed below the partition plate (33), and the interior is used as a vegetable compartment (37). )
I can hear it. (3g), (39), (40) and (41) are in each chamber (7), (8).

It is a door corresponding to (35) and (37), and is a door corresponding to container (34).
) and (36) are attached to the back surfaces of the doors (40) and (41), respectively, and can be freely drawn out. (42) is the refrigerator compartment (in front of the damper cover (23)
8) A container-shaped shelf installed at the top that can be freely pulled out, and below it are two more shelves for storing items (43), (44).
has been erected.

In Figure 1, the duct for the cold room (15), together with the duct for the ice room (16), has a through hole (45) formed in the inner box (3) below the blower (12), and each air outlet (17), (18).
) is constructed in a duct member (46) attached to the back of the inner box (3). Damper (21),
(22) can be driven by a bellows filled with gas, and the damper (21) for the refrigerator compartment detects the temperature inside the refrigerator compartment (8) and adjusts the temperature at the air outlet (1) so that the average temperature is about +5°C.
7) Open and close to adjust the amount of cold air discharged, and the damper for ice room (22) detects the temperature inside the ice room (35) and adjusts the temperature by -1 on average.
The air outlet (18) is opened and closed to maintain the temperature in an icy temperate zone of about 0.9°C.

The damper cover (23) is composed of a front plate (52), a front insulation plate (53), and a rear insulation plate (54) that matches the rear surface of the front insulation plate (53), as shown in the cross-sectional view of Fig. 1. (8
), both dampers (21),
(22) is mounted between the front and rear insulation plates (53) and (54). The rear heat insulating plate (54) has a protruding wall (55) projecting forward formed on the peripheral edge excluding the discharge ports (27) and (28), and this protruding wall (55) abuts the inner surface of the front insulating plate (53). come into contact with The partition walls (56), (57) and (58) that are continuous with the projecting wall (55) partition the space between the front and rear insulation plates <53) and (54) to the left and right, and from the right, the icehouse damper (22) storage section (59), ventilation path (60), storage section (61) for the damper for the refrigerator (21)
and a ventilation path (62) are formed. The storage portion (59) communicates with the ventilation passage (60) at the upper end, and the ventilation passage (60) communicates with the discharge port (28) at the lower end. As a result, the cold air discharged from the outlet (18) flows down inside the ventilation μ (60), and flows through the icehouse passageway (26) in the duct member (24).
flows into and descends. This passage (26) lower end (26A)
communicates with the rear end of the cold air passage (83) formed inside the partition plate (32), and furthermore, an ice chamber (35) is provided on the lower surface of the cold air passage (83).
) A corresponding air outlet (84) is formed at the upper side. Therefore, the cold air that has descended through the passage (26) is transferred to this cold air passage (
83) forward and the ice chamber (3) from the air outlet (84).
5) Flow upwards to maintain the ice chamber (35) in the ice temperate zone. The lower vegetable compartment (37) is cooled from around the container (36) by the cold air flowing down from the ice room (35) flowing through the through hole (33A) of the partition plate (33).

The cold air discharged from the air outlet (17) ascends through the storage section (61) and reaches the ventilation path (62). A deodorizer (D) is provided within this ventilation path (62). (63) is a case with a roughly U-shaped cross section, with the surface facing the bottom wall and both sides open.
A high voltage generator (64) is installed on the outside of the bottom wall of this case (63).
) are fixed by engagement or screwing.

Two high voltage tables (64) are connected to the high voltage generator (64).
5) and (65) extend, and an ozone generator (66) is connected to their tips. The ozone generator (66) has electrodes formed on a dielectric plate such as ceramic, and has a slit-like notch (67) bored in the bottom wall of the case (63).
It is introduced inside the case (63) by the supporting part and placed inside the case (63). Two pairs of lips are formed protruding from inside both open ends of the case (63), and honeycomb-shaped ozone decomposition catalysts (68) and (69) are attached thereto so as to close the openings on both sides.

On the other hand, the ventilation passage (62) of the rear insulation board (54) has a recess (70) with a shape matching the external shape of the high voltage generator (64).
) is formed. The deodorizer uses an ozone decomposition catalyst (68
) is on the windward side and (69) is on the leeward side of the high voltage generator (
64) is housed in the recess (70). This completes the positioning of the deodorizer (D) with the zero damper (21).

(22) are also attached to the storage parts (59) and (61), respectively, and the whole is covered with the front insulation board (53). At this time, the open end facing the bottom wall of the case (63) is connected to the front insulation plate (53).
) is closed by contacting the inner surface of the book. Also, as a result, the ozone generator (66) and the ozone decomposition catalyst (68), (
69) will be placed in the ventilation passage (62), and the arrangement with respect to the flow of cold air will be from the windward to the catalyst (68), the generator (66), and the catalyst (69). Face plate (5
2) Install.

At this time, the case (63) occupies a part of the ventilation path (62),
A space is formed between the partition wall (58) and the partition wall (58). Further, a projecting wall (72) extending upward from the side wall on the partition wall (58) side of the case (63) is formed on the front heat insulating plate (53).
As a result, the ventilation passage (62) is divided into left and right sections, and a ventilation passage (73) is formed on the partition wall (58) side.

Here, since the deodorizer (D) has an ozone decomposition catalyst (68) etc., its ventilation resistance is large.
If all of the cold air coming out of 7) passes through the deodorizer (D), it will not be possible to secure a sufficient amount of cold air to cool the refrigerator compartment (8). (17) A part of the cold air discharged from the refrigerator compartment (
8), the amount of cold air is ensured. or,
Since it is necessary to secure the necessary deodorizing effect by ensuring that cool air passes through the deodorizer (D>), the entrance of the ventilation passage (73) is narrowed by the projecting wall (72), and the cool air is supplied to the deodorizer (D). It also ensures a sufficient amount of cold air.

In the ozone generator (66), a creeping discharge is generated by the high voltage applied between the electrodes, which is discharged from the Suita mouth (17) and flows into the ozone generator (62) through the ozone decomposition catalyst (68). Ozone (
The generated ozone reaches the ozone decomposition catalyst (69) together with the malodorous components in the cold air. Catalyst (6g)
, (69) has a very large geometric surface area and retains malodorous components to react with ozone and undergo oxidative decomposition. This deodorizes the cold air. At this time, the remaining ozone is decomposed by the catalyst (69) and becomes oxygen molecules. Furthermore, since the remaining ozone that attempts to flow back out while the outlet (17) is closed is decomposed by the catalyst (68), ozone that is harmful to the human body and goods will not flow out to the outside.

The cold air that has been deodorized by the deodorizer (D) and the cold air that has passed through the ventilation path (73) is transferred to the refrigerator compartment passage (2) in the duct member (24).
5) and is supplied into the refrigerator compartment (8) through the air outlet (sl) and (82).

(g) Effects of the Invention According to the present invention, the deodorizer is installed within the damper cover that covers the damper device, so it can be installed without using a special mounting cover, and the effective volume inside the refrigerator is not narrowed.

Furthermore, since the deodorizer is easy to install and remove, it can be repaired and replaced, and it can always be maintained in good operating condition.

[Brief explanation of drawings]

Figure 1 is an enlarged longitudinal sectional view of the refrigerator of the deodorizer section, Figure 2 is a front view of the same part, Figure 3 is a longitudinal sectional view of the refrigerator of a part of the damper for the ice room, and Figure 4 is a part of the damper for the cold room. Fig. 3 shows a vertical cross-sectional view of a refrigerator. (21)... Damper for cold room (22)... Damper for ice room, (23)... Damper cover (
62)...Ventilation duct, (D)...Deodorizer.

Claims (1)

[Claims] 1. In a refrigerator having an air outlet for supplying cold air into a storage room, a damper device for opening and closing the air outlet, and a damper cover covering the damper device, the damper device is formed in the damper cover. A refrigerator characterized in that a deodorizer having an ozone generator, an ozone decomposition catalyst, etc. is installed in a ventilation passage through which cool air passes through.