JPS62138672A - Deodorizer for 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 [Field of Application of the Invention] The present invention relates to a deodorizing device for a refrigerator, and particularly to a deodorizing device for a refrigerator suitable for preventing powder from falling from a deodorizing agent.

[Background of the invention]

Refrigerators store a variety of foods, so they are filled with food odors. In order to remove this odor, the user should
I keep a case of deodorizer made of granular coconut shell activated carbon in a corner of my refrigerator.

However, since the deodorizing agent is installed in the refrigerator compartment, the internal volume of the refrigerator compartment is reduced by the size of the deodorizing agent. Furthermore, since such deodorizers are placed in one corner of the refrigerator compartment, it cannot be said that all of the cold air circulating within the refrigerator compartment passes through the deodorizer.

Therefore, the deodorizing effect could not be said to be sufficient.

As a means to solve such problems,
As disclosed in Japanese Patent No. 7365, there is a refrigerator in which a deodorizing device is attached to a part of a cold air suction passage from the refrigerator compartment, which is provided in an insulating wall that partitions the freezer compartment and the refrigerator compartment.

However, such a refrigerator deodorizing device has the following drawbacks.

That is, when the refrigerator is operated, the vibrations cause the deodorizing device in the suction passage to also vibrate, causing powder from the deodorizing agent to fall into the refrigerator.

[Purpose of the invention]

An object of the present invention is to provide a deodorizing device for a refrigerator that prevents deodorizing powder from falling into the refrigerator compartment.

[Summary of the invention]

In order to achieve such an object, the present invention provides an insulating wall that partitions a freezer compartment and a refrigerating compartment, a suction passage for cold air from the refrigerating compartment provided in the insulating wall, and a deodorizing passage installed in the suction passage. In the deodorizing device for a refrigerator, the deodorizing device has a ventilation hole formed by a partition plate, and the partition plate is provided with a receiving portion for receiving powder from activated carbon.

[Embodiments of the invention]

Hereinafter, details of the present invention will be explained with reference to an embodiment shown in the drawings. FIG. 1 is a sectional view of the main parts of the refrigerator, and FIG. 2 is a sectional view of the main parts of the partition insulation wall. In the figure, 1 is a refrigerator main body, and 2 and 3 are a freezing compartment and a refrigerating compartment formed inside the refrigerator main body 1. 4 is an insulating wall that partitions the freezer compartment 2 and the refrigerator compartment 3; 5 is a cooler installed at the back of the freezer compartment 2; 6 is a cooler that supplies the cold air cooled by the cooler 5 to the freezer compartment 2 and the refrigerator compartment 3. A blower for forced circulation, 7 is a cooling room 8 where the cooler 5 etc. mentioned above are installed.
This is a fan guard installed in front of the

Reference numeral 9 denotes a passageway for returning cold air in the freezer compartment 2 to the cooler 5, and numeral 10 denotes a suction passageway for returning cold air in the refrigerator compartment 3 to the cooler 5. 10
3a is an inlet space of the suction passage 10 whose lower part is open;
is an opening hole provided in the same device as the lower opening of the entrance space 10a of the suction passage 10 in the ceiling surface that slopes downward toward the back of the refrigerator compartment 3. The opening hole 32 is a place where a deodorizing device, which will be described later, is to be stored. 11 is the outer peripheral wall 11
This box-shaped fixture 11 has a section a and a plurality of ventilation holes 11b on the lower surface.The box-shaped fixture 11 has an outer circumferential wall 11a housed in the entrance space 10a of the light suction passage 10, The lower surface is removably locked in an opening hole 3a provided in the ceiling surface of the refrigerator compartment 3 without protruding into the refrigerator. Box-shaped fixture 11
A plurality of ventilation holes 11b provided on the lower surface of the holder are composed of partition plates 12 arranged at regular intervals. This partition plate 12 has an inclined part 12c and a receiving part 12.
a and a rising portion 12°b. Inclined part 12
c is arranged at a position covering the space between the partition plates 12, and the receiving part 12a is located directly below the activated carbon housed in the box-shaped fixture 11.

The receiving portion 12a of the partition plate 12 serves to catch fine powder of honeycomb activated carbon, which will be described later, generated by weathering or vibration of the refrigerator, and prevent it from falling into the refrigerator compartment 3. 1
5 is activated carbon whose outer periphery is held down by a mounting frame 16 and is provided to deodorize the interior of the refrigerator, and is detachably attached to the upper opening of the box-shaped fixture 11. The activated carbon 15 is extruded into a honeycomb shape with a large number of ventilation holes 15a.

The ventilation hole 15a is installed vertically. 1
Reference numeral 7 denotes a bypass passage provided on the outer circumferential wall of the back of the box-shaped fixture 11, through which cold air from the cooling chamber 8 flows backward through the suction passage 10 toward the refrigerator compartment 3 when the cooling operation of the refrigerator is stopped. This is for introducing cold air into the refrigerator compartment 3.

This bypass passage allows backflow cold air (dashed line arrow in the figure) to flow into the refrigerator compartment 3 without directly hitting the activated carbon 15. This means that when the ambient temperature at the location where the refrigerator is installed is low (e.g., below 10°C) and the inside of the refrigerator compartment 3 is humid, the humidity inside the refrigerator will be about 3°C during the cooling operation. When the returned cool air passes through the ventilation holes of the honeycomb activated carbon 15, it is absorbed by the activated carbon 15, and the activated carbon 1 absorbs moisture.
5 is cold air (approximately 2
5° C.) flows back into the refrigerator compartment 3 through the suction passage 10, the absorbed moisture freezes and is provided to prevent the deodorizing effect from being impaired. Reference numeral 18 indicates that the box-shaped fixture 11 equipped with the activated carbon 15 is attached to the refrigerator compartment 3.
It is a hand grip part to make it easy to operate when attaching and detaching it to the opening hole 3a in the ceiling surface of the box. It is formed to protrude into the inside of the refrigerator. The handhold portion 18 generally has an effective lifespan of about half a year to one year of the activated carbon used in this type of deodorizing device, so it is necessary to replace it with new activated carbon when the deodorizing effect decreases. This facilitates the replacement work. At 19, a sticker indicating the scheduled replacement month of the activated carbon employed in the deodorizing device can be affixed to the handhold portion 18. Therefore, you can easily know when it is time to replace the activated carbon.

To explain the deodorizing action of the deodorizing device configured as described above, the suction passage 10 formed to forcibly suck cold air into the cooler 5 side has air blown out to the refrigerator compartment 3 side by the blower 7. About the same amount of cold air is sucked in. Activated carbon 15 installed to remove odors inside the refrigerator compartment 3
is installed in the inlet space 10a of the suction passage 10, and all of the returned cold air passes through the ventilation hole 11b on the bottom surface of the box-shaped fixture 11 as shown by the arrow (solid line) in the figure, and the honeycomb activated carbon 150 is ventilated. By passing through all the holes 15a, the honeycomb activated carbon 15 efficiently deodorizes the odor contained in the cold air. In other words, the activated carbon of the present invention is capable of efficiently deodorizing the concentrated and flowing cold air.

〔Effect of the invention〕

According to the present invention, the receiving portion provided on the partition plate allows
Since powder falling from the activated carbon can be caught, the powder can be prevented from falling into the refrigerator compartment.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of a refrigerator equipped with the present invention, and FIG. 2 is a detailed view of section A in FIG. 1. 1... Refrigerator body, 2... Freezer compartment, 3... Refrigerator compartment, 3a... Refrigerator room ceiling opening hole, 4... Heat insulation wall, 5
...Cooler, 6.Blower, 7.Fan guard, 8.Cooling room, 9.Return passage of freezer room, 10.
... Suction passage, 10a... Inlet space, 11... Box-shaped fixture, lla... Outer peripheral wall, llb... Ventilation hole,
12... Partition plate, 12a... Receiving part, 12b...
Rising part, 12c... Inclined part, 15... Honeycomb activated carbon, 16... Mounting frame, 17... Bypass passage,
18...Handle part, 19...Seal.

Claims (1)

[Claims] A deodorizing device for a refrigerator comprising an insulating wall that partitions a freezer compartment and a refrigerator compartment, a suction passage for cold air from the refrigerator compartment provided in the insulating wall, and a deodorizing device attached to the suction passage, the deodorizing device 1. A deodorizing device for a refrigerator, characterized in that the partition plate has a ventilation hole formed by a partition plate, and the partition plate is provided with a receiving portion for receiving powder from activated carbon.