JPH0810108B2 - refrigerator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for refrigerating and storing fruits and vegetables, fresh fish, meat and the like.

[0002]

2. Description of the Related Art Generally, a far-infrared radiation ceramic such as SiO ₂ 3 is disclosed in Japanese Patent Publication No. 54-11809.
0-80% (all by _{weight%), Al 2 O 3 5~42} %,
Fe ₂ O ₃ 0.5-55%, B ₂ O ₃ 0-33%, Cr ₂ O ₃
0-55% in combination with the total from 5.5 to 60% and Na ₂ O _{of, K 2 0, BeO, MgO} , CaO, at least selected from among SrO and BaO 1 or 0.5 to 45
A far-infrared emissive material consisting of a dense ceramic with a composition of% is disclosed. On the other hand, refrigerated cases used in supermarkets and the like are, for example, Jikho Sho 57-.
As disclosed in Japanese Patent No. 43575, a refrigerated product storage section for fruits and vegetables, meat, etc. is formed on the inside of a showcase with an open front, and a cool air circulation duct is formed on the outside of which a cooler and a blower are arranged. The refrigerated product storage section is configured to be covered with a cold air flow.

Further, Japanese Utility Model Laid-Open No. 62-91188 discloses a freight car having a far-infrared radiation ceramic adhered to the side surface of a cargo compartment. The freight compartment is provided with a refrigerating device, and the far-infrared radiation ceramic is used for frozen food. An example of utilizing it for activity preservation is disclosed.

[0004]

[Problems to be Solved by the Invention]
One of the most important points in cases and refrigerated cargo compartments is keeping the freshness of refrigerated goods. However, in order to constantly maintain the optimum refrigeration temperature for keeping freshness, the electricity bill is considerably high.
Further, even if the temperature is kept at an optimum refrigeration temperature, cold air is constantly circulated in fruits and vegetables, so that moisture gradually evaporates and the weight is reduced, so that freshness thereof is easily lost. Further
The conventional method disclosed in Japanese Utility Model Publication No. 62-91188.
Far infrared radiation ceramics are simply pasted on the inner wall of the cold storage compartment
The infrared radiation of the ceramic is reduced at a low temperature just by wearing it, so that the desired effect may not be expected.

The present invention has been made on the basis of the above-mentioned problems, and the effect of far infrared rays can be obtained even at a low temperature such as a refrigerator.
The purpose of the present invention is to provide a refrigerator that is provided with a far-infrared radiation ceramic so that it can be exhibited reliably , thereby activating cold air in the refrigerating room, efficiently maintaining the freshness of refrigerated products, etc., and long-lasting. .

[0006]

SUMMARY OF THE INVENTION According to the present invention, a refrigerating product storage section is formed inside a chamber wall and a cooler and a blower are arranged outside to form a cold airflow passage, and the refrigerated product storage section is provided with the cold airflow.
In a refrigerator covered with a cold air flow flowing from a blowout port of a passage to a suction port of the blower from the suction port to the cooler.
Far-infrared radiation ceramic is installed in the air passage to
External radiation ceramic is SiO ₂ 70-80%, Al ₂ O _{3
10~20%, Fe 2 O 3 3~9} %, less ZrO ₂ 5%
It is configured to have a component.

[0007]

[Operation] With the above configuration , heat is received in the refrigerated product storage unit.
The comparatively high temperature cold airflow is far infrared radiation ceramic
As it passes through the pipe and is blown out to the cooler,
Before it is cooled again, is it efficient and effective in the normal temperature range?
It has a specific component that emits a long-range far-infrared electromagnetic wave.
Relatively high temperature under a far-infrared radiation ceramic action that
Reliably activated and efficiently retains the freshness of refrigerated foods etc.
And can last longer.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 1 denotes an open-type refrigerating case having an opening 2 for storing and taking out products on the front surface of a refrigerator, and an outlet 3 for a cold air flow at the upper end of the opening 2.
A suction port 4 that opposes the air outlet 3 is provided at the lower end.

Inside the opening 2, a commodity storage section 6 in which a plurality of display shelves 5 are arranged is formed. Reference numeral 7 denotes a chamber wall having a plurality of through holes 8 formed therein, which defines the storage unit 6 and
Holds the shelf 5. Reference numeral 9 denotes a cold air flow passage formed between the chamber wall 7 and the outer wall 10. One end of the cold air flow passage is connected to the air outlet 3 and the other end is connected to the air inlet 4, and the air outlet 3 to the air inlet 4 to the cold air passage 9 are provided. ~ Cold air is circulated in the flow of the outlet 3. A cooler 11 is provided in the cold airflow passage 9, and a blower 14 for forcibly circulating the cool air is provided at a ventilation port 13 formed in a partition plate 12 of the cold airflow passage 9. Furthermore, cold
A relatively high temperature from the suction port 4 of the airflow passage 9 to the cooler 11
The blower passage 31 of the blower 14 through which the cool air flow flows has a long distance described later.
An infrared emitting ceramic 15 is provided.

Reference numeral 15 is a far-infrared radiation ceramic provided on the suction side of the blower 14 at the cold air recirculation position.
By inserting the projection 17 protruding in the corner of the four-sided frame 16 in which a large number of 15 are arranged into the through hole 18 formed in the partition plate 12, the suction side of the blower 14 does not rattle or come off. Mounted as. The cylindrical far-infrared radiation ceramics 15 are held by, for example, 10 coils 20 between each other so that a gap is formed in the coil-shaped holding frame 19, and 10 holding frames 19 are provided. The hooks 21 at both ends are hooked on the four-sided frame 16 so as to be spaced from each other. Therefore, due to the above-mentioned gaps or intervals, a large number of ventilation gaps 22
Is formed.

The components of the far infrared emitting ceramic 15 are
SiO ₂ 70-80%, preferably 76%, Al ₂ O ₃ 10
20%, preferably _{16%, Fe 2 O 3 3~9} % , preferably 6%, ZrO ₂ 5% or less is preferably a ceramic solid consisting of 2%. The number of ceramics 15 and the number of holding frames 19 in the holding frame 19 are not limited.

The operation of the present invention configured as described above will be described in detail. The cold airflow circulating in the refrigerating case 1 is blown out from the blow-out port 3 and closes the opening 2, blows out from the blower 14 through the far-infrared radiation ceramic 15 from the suction port 4, and is cooled again by the cooler 11. It becomes a cold air flow. Then, when passing through the cold airflow passage 9, a part of the cold airflow is blown out from the through hole 8 of the chamber wall 7 to the product storage unit 6 to cover the refrigerated product, and the other part is blown out from the blowout port 3 to open the opening 2 Occlude and circulate.
In this case, the cold air flow receives heat from the outside air when closing the opening 2 and has a relatively high temperature. Further, since the far-infrared radiation ceramics 15 in the cold airflow passage 9 has the above-mentioned component ratio, it emits an efficient, effective and good quality far-infrared electromagnetic wave length in the normal temperature band. Therefore, the far-infrared radiating ceramic 15 has invisible heat rays at a relatively high temperature and a wavelength of 4 to 50 μm.
It emits far infrared rays having a wavelength of 8 to 14 μm, which is an absorption wavelength for water. FIG. 3 shows the result of measuring the size of a water molecule group (cluster) irradiated with far-infrared rays by the far-infrared ceramic according to the present invention by a nuclear magnetic resonance spectroscopy analyzer, and shows that of treated water (FIG. 3). The wave width interval is 103 Hz, untreated water (Fig. 4) is 128 Hz, the difference between both is 25 Hz, and the reduction rate is 25/128 x 100 =
It was 19.53%, and the size of the water group (cluster) was smaller than that of general water by the far-infrared treatment, indicating that the water is activated. In this way, the water molecules in the cold air stream are activated. More ceramic 15
The cations of SiO ₂ which is the component of Al ₂ O ₃ , Fe
_{Since 2} O ₃ neutralizes ammonia, it is easy to substitute with aluminum ions, so that gas molecules in the cold air stream are also activated. Then, the activated cold air flow blows out from the through hole 8 and covers the refrigerated product, so that the freshness of the refrigerated product is maintained. Since the ceramic 15 is provided inside the air-permeable holding frame 19 by the ventilation gap 22, it does not hinder the ventilation of the blower 14. Table 1 shows far-infrared radiation ceramics
Showcase 1 using No. 15 and Table 2 show experimental examples in which fruits and vegetables were actually stored by using ordinary refrigerated shows.

[0013]

[Table 1]

[0014]

[Table 2]

From these tables, the activated refrigerated shows
When the one put in the case 1 and the one put in the ordinary refrigerating show case are compared, the activated refrigerating show case 1 is heavier due to the influence of far infrared rays. There is little loss of weight, the storage condition is good, and the freshness is maintained. This is especially true for colored vegetables. In this way, the freshness of refrigerated products can be efficiently maintained and long-lasting.

As described above, in this embodiment, the cold air flow passage 9 is provided.
A relatively high temperature cold air flow from the suction port 4 to the cooler 11 flows.
The blower passage 31 of the blower 14 efficiently
Of a specific component that emits an effective and good quality far-infrared electromagnetic wave
A far infrared emitting ceramic 15 is provided. Accordingly
And a relatively high temperature cold air stream that has received heat in the product storage unit 6
Blows through the far-infrared radiation ceramic 15 and blows on the cooler 11.
Since issued can, before cold air is to be cooled again by the cooler 11
In addition, the production of far-infrared radiation ceramic 15 with specific components
It is surely activated at relatively high temperature by application, which
It effectively keeps the freshness of refrigerated foods, etc.
Can be

Although one embodiment of the present invention has been described in detail above, it can be appropriately modified within the scope of the gist of the present invention. For example,
In the above-mentioned embodiment, the showcase 1 having an open front surface is described, but the same can be applied to a refrigerator having an opening / closing door on the front surface. Further, it can be applied to a refrigerator for home use as well as a refrigerating showcase 1 for business use. Further, the far-infrared radiation ceramic 15 may be provided on the blow-out side of the blower 14, and may be provided at the cold air recirculation position in the blow passage. The refrigerated items are also used for medical treatment of blood and the like. The far-infrared radiation ceramic is not limited to the above-mentioned components. For example, as a basic component, SiO ₂ (silicon oxide), A
Powders of l ₂ O ₃ (aluminum oxide), Li ₂ O (lithium oxide), and Fe ₂ O ₃ (ferric oxide) were mixed in an appropriate amount according to the above-mentioned compounding order, and Ca 0 was added as a minor additive.
(Calcium oxide), K ₂ O (potassium oxide), Zr
o ₂ (zirconium oxide), MgO (magnesium oxide), SO ₃ (sulfur oxide), Na ₂ O (sodium oxide), P (phosphorus), YO (yttrium oxide), Rb
(Rubidium), Co (Cobalt), Zn (Zinc), M
n (manganese), Se (selenium), Pb (lead), Cu
A ceramic for purifying far infrared radiation activity may be used in which elements of (copper) and Ni (nickel) are mixed with each other by 2% or less as a rough guide and fired.

[0018]

According to the present invention, a cold air flow passage in which a refrigerated product storage section is arranged inside a chamber wall and a cooler and a blower are arranged outside is formed, and the refrigerated product storage section is provided at the outlet of the cold air flow passage.
In the refrigerator covered with cold air flowing in Luo inlet, the intake
Far-red in the air passage of the blower from the inlet to the cooler
This far-infrared radiation ceramic
Click the _{SiO 2 70~80%, Al 2 O} 3 10~20%,
Fe ₂ O ₃ 3-9%, ZrO ₂ 5% or less.
Since it is configured as described above, it has far infrared rays with a specific component.
The far infrared rays from the line-emitting ceramic ensure that the cool air is activated
By sexualizing, the freshness of refrigerated products etc. can be efficiently maintained,
A refrigerator that can last a long time can be provided.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of essential parts showing an embodiment of the present invention.

FIG. 3 is a graph showing a nuclear magnetic spectroscopic analysis measurement result of treated water according to the present invention showing an example of the present invention.

FIG. 4 is a graph showing a nuclear magnetic spectroscopic analysis measurement result of untreated water showing an example of the present invention.

[Explanation of symbols] 1 refrigerating case (refrigerator) 3 outlet 4 intake 6 product storage 7 room wall 9 cold airflow passage 11 cooler 14 blower 15 far infrared radiation ceramic 31 air passage

Claims (1)

[Claims] 1. A refrigerated product storage section is formed on the inside of a chamber wall and a cooler and a blower are arranged on the outside thereof to form a cold airflow passage, and the refrigerated product storage section is changed from a blow-out port of the cold airflow passage to a suction port.
In a refrigerator covered with a flowing cold air, in front of the suction port
Far-infrared radiation sensor is installed in the air passage of the blower leading to the cooler.
Laminated, this far infrared radiation ceramic is Si
O ₂ 70 to 80%, Al ₂ O ₃ 10 to 20%, Fe ₂ O ₃ 3
9%, refrigerator and having a ZrO ₂ 5% or less of the ingredients.