JP4155891B2 - refrigerator - Google Patents

Description

The present invention relates to a refrigerator that sends cold air into a storage chamber, and more particularly, to a refrigerator having a cold storage member that stores and discharges the cold heat of cold air.

A conventional refrigerator having a cold storage member is disclosed in Patent Document 1. In this refrigerator, a cold storage member forming a wall surface of a cold air passage provided on the back surface of the storage room is arranged so as to face the storage room. The cold storage member is filled with a cold insulating agent, stores the cold heat of the cold air flowing through the cold air passage, and discharges it from the entire back surface of the storage chamber. Thereby, the temperature of the storage room can be made uniform.
Japanese Patent Laid-Open No. 2001-66040 (page 3 to page 7, FIG. 3)

However, according to the conventional refrigerator, the temperature of the cold storage member is lower than the temperature in the storage chamber. For this reason, there was a problem that dew condensation occurs on the surface of the cold storage member due to moisture flowing into the storage chamber by opening and closing the door, and mold and germs propagate.

An object of this invention is to provide the refrigerator which can prevent the reproduction | regeneration of the mold | fungi of a cool storage member and various germs.

To accomplish the above object, a storage compartment, a cooler for generating cold air flowing into the storage compartment, the cool air passage for sending the vapor cold to the storage chamber communicates with the storage chamber, before Symbol with releasing the cold in the storage chamber accumulated cold heat by cool air flowing through the cool air passage comprises a cool storage member for condensing moisture storage room air on the surface, and facing the storage compartment of the cold accumulating member It is characterized in that an antibacterial treatment is applied to the part, irregularities for holding water droplets due to condensation are formed, and bacteria are captured by the held water droplets .

According to this configuration, the cold heat of the cold air flowing through the cold air passage is stored in the cold storage member and released into the storage chamber. The cold storage member is cooler than the storage chamber, and condensation occurs on the surface of the cold storage member that has been subjected to antibacterial treatment.

Cool storage member, easily condensation occurs directly portion in contact with the air in the storage compartment facing the storage chamber, to facilities for antimicrobial treatment in this portion. By forming irregularities on the surface of the cold storage member by anodizing or the like, the surface area of the cold storage member can be increased.

The antibacterial treatment can be realized by arranging an antibacterial agent having an antibacterial action on the surface of the cold storage member by coating or coating. As antibacterial agents, compounds such as silver zeolite carrying silver ions, natural antibacterial agents such as catechin and hinokitiol, and the like can be used.

Moreover, you may form the said unevenness | corrugation by apply | coating the said antibacterial agent to the some streaks crossing the surface of the said cool storage member . Moreover, an antibacterial agent may be apply | coated to the surface of a cool storage member, and a character or a pattern may be formed in the surface of a cool storage member.

According to the present invention, propagation of mold and bacteria is prevented by antibacterial treatment condensation on the surface is applied and may occur in cold storage member in the regenerative bed. Moreover, mold and bacteria in the storage chamber are captured by water droplets due to condensation, and the mold and bacteria collected by the antibacterial treatment applied to the cold storage member are sterilized.

Further, according to the present invention, since the cold storage member is subjected to the antibacterial treatment on the portion where condensation is likely to occur when facing the storage room, it is possible to effectively prevent or sterilize mold and bacteria.

Further, according to the present invention, since the unevenness is formed on the surface of the cold storage member by anodizing or the like, the surface area of the cold storage member is increased. As a result, the effect of preventing the growth of mold and bacteria and the effect of sterilization can be improved, and the fixing strength of the antibacterial agent by coating and coating can be improved.

Moreover, according to the present invention, since the antibacterial agent having an antibacterial effect by arranging the surface of the cold storage element by coating or coatings subjected to antimicrobial treatment, effectively sterilizing effect by disposing a large amount of antimicrobial agent to the surface of the cold storage element Obtainable. Furthermore, deterioration of the antibacterial agent due to the kneading of the antibacterial agent into the resin material by application of the antibacterial agent can be prevented.

Further, according to the present invention, the antibacterial agent is applied so as to form a plurality of streaks crossing the surface of the cold storage member, letters and patterns. Thereby, the unevenness | corrugation by an antibacterial agent is formed and the water droplet by condensation is hold | maintained by an unevenness | corrugation. Therefore, the sterilization effect by capturing bacteria can be improved and the moisturizing effect can be improved without deteriorating the beauty.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing a refrigerator according to an embodiment. In the refrigerator 1, the interior of the main body 2 is divided in the order of a refrigerator compartment 31, a vegetable compartment 32, and a freezer compartment 33 from above. In addition, an ice greenhouse 34 isolated by a partition plate 37 is provided at the lower part of the refrigerator compartment 31.

  The vegetable compartment 32 and the freezer compartment 33 are partitioned by a partition frame 36 made of a heat insulating member. The refrigerator compartment 31 and the vegetable compartment 32 are partitioned by a partition plate 25 made of a resin molded product. The partition plate 25 is provided with a cold air passage 30, and an outlet 34 a communicating with the ice greenhouse 34 is provided at the rear of the cold air passage 30.

  A plurality of shelves 10, 11, 12 are provided in the refrigerator compartment 31. The front surface of the refrigerator compartment 31 can be opened and closed by a rotating heat insulating door 41. A plurality of door pockets 16 to 20 are provided inside the heat insulating door 41. The upper part of the vegetable compartment 32, the freezer compartment 33, and the lower part of the freezer compartment 33 can be opened and closed by sliding heat insulating doors 42, 43, 44, respectively, and the storage containers 45, 46, 47 can be drawn out. ing. In addition, storage containers 21 and 22 are arranged in the ice greenhouse 34.

  A compressor 50 is disposed behind the freezer compartment 33. A condenser (not shown) is connected to the compressor 50 via a discharge pipe 50a, and coolers 6 and 7 are connected in series via a suction pipe 50b. Defrost heaters 51 and 52 for defrosting the coolers 6 and 7 are provided below the coolers 6 and 7.

  The condenser and the cooler 6 are connected via a first capillary tube (not shown). A second capillary tube (not shown) is disposed between the coolers 6 and 7. Thus, a refrigeration cycle is configured, and when the refrigeration cycle operation is performed, the coolers 6 and 7 are cooled. Further, switching means is provided between the condenser and the first capillary tube, and the switching means and the cooler 7 are connected via a third capillary tube (not shown). By switching the switching means, only the cooler 7 can be cooled.

  The cooler 7 is disposed in the cold air passage 53. The cold air passage 53 communicates with the freezing chamber 33 through the inflow port 33 a and the outflow port 33 b, and the front side is covered with the back plate 55 of the freezing chamber 33. A blower 54 is disposed above the cooler 7 so that the cool air in the cool air passage 53 can be circulated.

  The cooler 6 is disposed in the cold air passage 56. The cold air passage 56 communicates with the vegetable compartment 32 through the outlet 32 a, and the lower front side is covered with the back plate 57 of the vegetable compartment 32. The back plate 57 is made of a heat insulating member, and prevents overcooling of the vegetable compartment 33 provided close to the cooler 6. Above the cooler 6, a blower 5 that distributes the cool air in the cool air passage 56 is disposed.

  The upper front side of the cold air passage 56 is covered with the back plate 23 of the ice greenhouse 34 made of a heat insulating member. The back plate 23 is provided with an opening 34b, and cold air is sent into the ice greenhouse 34 through the opening 34b.

  The blower 4 is disposed at the upper end of the cool air passage 56. A blower cover 58 facing the refrigerator compartment 31 is attached to the front surface of the blower 4. As shown in the front view of FIG. 2, the blower cover 58 has a plurality of openings 58a.

  A cool air passage 59 communicating with the cool air passage 56 is provided above the blower 4. The cool air passage 59 is configured such that the air taken in from the refrigerating chamber 31 by the blower 4 through the opening 58a and the cool air flowing through the cool air passage 56 by the blower 5 merge and flow.

The front side of the cold air passage 59 is covered with the cold storage member 3 communicating with the inside of the refrigerator compartment 31 by the opening 3a. The cold storage member 3 is made of an aluminum alloy, stainless steel or the like that has good workability and high rust prevention effect. The cool storage member 3 stores the cold heat of the cool air flowing through the cool air passage 59 and discharges the cool heat from the entire cool storage member 3 to the refrigerator compartment 31 so that the temperature in the refrigerator compartment 31 is made uniform. The cold storage member 3 may be formed by enclosing a jelly-like or liquid cold-retaining agent with a packaging material such as aluminum alloy or stainless steel.

  A cold air passage 60 communicating with the cold air passage 59 is provided in the ceiling portion of the refrigerator compartment 31. The lower surface of the cold air passage 60 is covered with an upper surface plate 61 made of a resin molded product having an opening 61a. Cold air flows into the refrigerator compartment 31 from above through the opening 61a.

  In the refrigerator 1 configured as described above, when the blower 54 is driven, the air in the freezer compartment 33 is guided to the cold air passage 53 from the outlet 33b. The air is cooled by exchanging heat with the cooler 7 and flows into the freezer compartment 33 from the inlet 33a. Thereby, the inside of the freezer compartment 33 is cooled.

When the blowers 4 and 5 are driven, the air in the vegetable compartment 32 is guided to the cool air passage 56 from the outlet 32a. The air is cooled by exchanging heat with the cooler 6, rises in the cool air passage 56, and is guided to the cool air passage 59. In the cool air passage 59 and the cool air passage 60, the cool air exchanged with the cooler 51 and the air in the refrigerating chamber 31 flowing in from the opening 58a circulate, and the opening 61a of the upper surface plate 61 and the opening of the cold storage member 3 are flown. 3a is sent into the refrigerator compartment 31.

In addition, a part of the cold heat generated by the cold air flowing through the cold air passage 59 is stored by the cold storage member 3 and is released into the refrigerator compartment 31. Thereby, the inside of the refrigerator compartment 31 is cooled efficiently and uniformly by the cold heat from the cold storage member 3 and the cold air from the openings 3a and 61a.

  The air in the refrigerator compartment 31 passes between the shelves 10 to 12 and the front side, and flows into the cold air passage 30 from below the ice greenhouse 34 through the outlet 34a. The air flows through the cold air passage 30 and is guided forward in the vegetable compartment 32. Further, the vegetable compartment 32 is cooled from the front side of the storage container 45 through the lower side. Then, the cool air is circulated through the outlet 32a to the lower part of the cooler 6.

FIG. 3 is a side cross-sectional view showing the details of part A of FIG. The cold storage member 3 has an antibacterial layer 9 formed on the surface facing the refrigerator compartment 31. The antibacterial layer 9 is formed by applying a paint containing an antibacterial agent having an antibacterial action. Antibacterial agents are composed of natural antibacterial agents such as catechin and hinokitiol, and compounds such as silver zeolite carrying silver ions.

Therefore, even if moisture that enters the refrigeration chamber 31 by opening and closing the heat insulating door 41 (see FIG. 1) is condensed on the surface of the cold storage member 3 lower than the refrigeration chamber 31, the antibacterial agent causes mold and bacteria to propagate. Can be prevented. Further, mold and bacteria in the air captured by water droplets condensed on the surface of the cold storage member 3 can be sterilized. In addition, when silver zeolite etc. which carry | support silver ion as an antibacterial agent are used, since silver ion is liberated by the water droplet of dew condensation, a bigger sterilization effect and a bactericidal effect can be acquired.

The cold storage member 3 may be formed of an alloy containing a compound or the like that supports silver ions. However, when the antibacterial layer 9 is disposed on the surface facing the refrigerating chamber 31 as in this embodiment, a large amount of antibacterial agent is disposed on the surface of the cold storage member 3 to effectively prevent the growth of mold and bacteria and sterilization effects. Obtainable. The antibacterial layer 9 may be provided on a part of the cold storage member 3. Condensation is likely to occur at the portion of the cold storage member 3 facing the refrigerating chamber 31. Therefore, the antibacterial layer 9 is provided on this portion, so that it is possible to more effectively prevent and sterilize mold and bacteria.

As shown in FIG. 4, the antibacterial layer 9 may be arranged by forming patterns 9a, 9b and characters 9c with a paint containing an antibacterial agent. Thereby, a convex part is formed by the antibacterial layer 9, and the water droplet by dew condensation is hold | maintained. Therefore, the sterilization effect by capturing bacteria can be improved and the moisturizing effect can be improved without deteriorating the beauty. In particular, a plurality of streak patterns 9a crossing the surface of the cold storage member 3 is more desirable because it can prevent the water droplets from flowing down.

Note that the antibacterial layer 9 may be disposed on the surface of the cold storage member 3 by applying a resin coating for preventing the cold storage member 3 from being scratched or improving aesthetics with a resin containing an antibacterial agent. However, since antibacterial agents such as natural antibacterial agents may deteriorate or evaporate due to high temperatures when kneaded into a resin, it is more desirable to form the antibacterial layer 9 by coating.

Further, when the surface of the cold storage member 3 is provided with irregularities, the surface area of the antibacterial layer 9 is increased, and the effect of preventing the growth of mold and germs and sterilization can be further improved. Furthermore, the adhesion strength of the antibacterial layer 9 by application or coating can be improved. When the cold storage member 3 is made of an aluminum alloy, the antibacterial layer 9 may be formed on the surface of the cold storage member 3 after anodizing. Thereby, the unevenness | corrugation can be easily provided in the surface of the cool storage member 3. FIG.

According to the present invention, propagation of mold and bacteria is prevented by antibacterial treatment condensation on the surface is applied to the cold accumulating member even if the generation of regenerative bed. Further, mold and bacteria in the storage chamber are caught by water droplets due to condensation, and the mold and bacteria are sterilized by the antibacterial treatment applied to the cold storage member. Therefore, the refrigerator which preserve | saves food etc. hygienically can be obtained.

These are side surface sectional drawings which show the refrigerator of embodiment of this invention. These are front views which show the refrigerator compartment of the refrigerator of embodiment of this invention. These are side surface sectional drawings which show the detail of the A section of FIG. These are front views which show the example of the antibacterial layer of the cool storage member of the refrigerator of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Main body part 3 Cold storage member 4, 5, 54 Blower 6, 7 Cooler 9 Antibacterial layer 31 Refrigeration room 32 Vegetable room 33 Freezer room 34 Ice greenhouse 50 Compressor 53, 56, 59, 60 Cold air passage

Claims (6)

A storage room;
A cooler for generating cold air flowing into the storage chamber;
A cold air passage communicating with the storage chamber and sending the cold air to the storage chamber;
With releasing the cold in the storage chamber accumulated cold heat by cool air flowing through the pre-Symbol cold passage, and cool storage member for condensing moisture storage room air on the surface,
The refrigerator is characterized in that an antibacterial treatment is performed on a portion of the cold storage member facing the storage chamber, an unevenness for holding water droplets due to condensation is formed, and bacteria are captured by the held water droplets . The refrigerator according to claim 1 , wherein the antibacterial treatment is performed on a surface of the cold storage member that has been anodized . The refrigerator according to claim 1 or 2, wherein an antibacterial agent having an antibacterial action is disposed on a surface of the cold storage member to perform the antibacterial treatment . The refrigerator according to claim 3 , wherein the antibacterial agent comprises a compound carrying a silver ion or a natural antibacterial agent . The refrigerator according to claim 3 or 4 , wherein the unevenness is formed by applying the antibacterial agent in a plurality of streaks crossing the surface of the cold storage member . The refrigerator according to any one of the preceding claims 3, characterized in that the formation of the letters or patterns on the surface of the 蓄 cold member by applying the antimicrobial agent to the surface of the regenerative bed.

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