JPH0618175Y2 - Cold storage refrigerator - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] This invention is intended to store fresh foods such as vegetables and fresh fish within a certain narrow optimum storage temperature, such as a constant temperature such as an ice refrigerator, a refrigerator or a freezer. The present invention relates to a refrigerator, and more particularly, to a cold storage refrigerator having a cold storage wall in a part of a cold air circulation path.

[Conventional technology]

Conventionally, as a cold storage refrigerator of this type, duct panels are arranged at predetermined intervals on the inner surfaces of the ceiling wall and the left and right side walls of the refrigerator body formed of a heat insulating material. And a duct section is formed between the duct panel and the duct panel, and a refrigerator is arranged at an appropriate position in the duct section to form a cold air circulation path between the refrigerator and the storage space in the refrigerator body. It is known that a part or the whole of the blowout side duct portion from the storage space to the storage space has a structure in which a cool storage agent is accommodated inside and a cool storage wall that comes into contact with cold air passing through the blowout side duct portion is provided. (Japanese Patent Laid-Open No. 63
-83569 and Japanese Utility Model Laid-Open No. 64-1378). In such a cold storage type refrigerator, the rise and fall of the cold air temperature due to the ON / OFF operation of the refrigerator is absorbed by the cold storage wall arranged in the blowout side duct section from the refrigerator to the storage space, and a uniform temperature is obtained. In addition to being able to supply cold air to the storage space, even if the refrigerator cannot be operated due to a power outage or the like, the cold storage can keep cold for a predetermined time.

However, in such a conventional cold storage refrigerator, cold air enters the storage space when circulating through the cold air circulation path of the storage space → suction side duct section → refrigerator → blowout side duct section and cold storage wall → storage space. Dust, dust, etc. are entrained and adhere to this cold air circulation path, especially inside the duct section from the suction side duct section through the refrigerator to the blowout side duct section and the cool storage wall, including the cool storage wall during long-term use. There is a problem that the inside of the lever duct is considerably contaminated and becomes unsanitary.

In addition, the cold storage wall in such a conventional cold storage refrigerator is
It is arranged in parallel with the ceiling wall or side wall, and is composed of a plate-shaped regenerator with both sides in contact with cold air.The size and the heat exchange area with the cold air are the size of a cold storage refrigerator, in other words For example, it is difficult to design the heat exchange area of the cold storage wall according to the fresh food to be stored, because it is almost uniquely determined by the size of the ceiling wall and side wall. There is a problem that the heat exchange area of the cold storage wall becomes too small.

[Problems to be solved by the device]

Therefore, the inventors of the present invention have arrived at the present invention as a result of intensive studies to solve such a problem.

Therefore, an object of the present invention is to provide a regenerator that can easily clean the inside of a cold air circulation path through which cold air circulates due to long-term use when it is contaminated with dust or dirt. Especially.

Another object of the present invention is a cold storage type that can easily change the amount of the cold storage agent stored in the cold storage wall and the heat exchange area of the cold storage wall according to the type of fresh food to be stored. To provide a refrigerator.

[Means for Solving the Problems]

That is, according to the present invention, duct panels are arranged at predetermined intervals on the inner surfaces of the ceiling wall and the left and right side walls of the refrigerator body formed of a heat insulating material, and the duct panels are provided between the ceiling wall and the left and right side walls and the duct panel. A duct portion is formed in the duct portion, and a refrigerator is arranged at an appropriate position in the duct portion to form a cool air circulation path between the duct portion and the storage space in the refrigerator main body, and the outlet side from the refrigerator to the storage space is formed. A cool storage refrigerator in which a cool storage material is housed inside a part or all of the duct portion and a cool storage wall that comes into contact with cold air passing through the blowout side duct portion is provided. An air inlet and a cool air outlet of the refrigerator are formed on any of the side walls, and the refrigerator is attached to the ceiling wall or one of the left and right side walls, and the duct panel is provided on the inner side of the ceiling wall and the left and right side walls of the refrigerator body. Removably attached to Rutotomoni a cold accumulation refrigerator composed of a plurality of cold storage wall members which are connected to and disconnection connected to each other the cold accumulating wall.

In the present invention, the duct panels disposed at predetermined intervals on the inner surfaces of the ceiling wall and the left and right side walls of the refrigerator body are
A panel excellent in heat insulation and lightweight, such as a heat insulation panel obtained by injecting a foaming urethane into a space preferably composed of two metal plates facing each other and a resin frame material surrounding the four side end faces Preferably, the ceiling duct panel facing the ceiling wall and the side wall duct panel facing each side wall are each divided into a plurality of pieces, and are formed in a size easy to handle.

Further, the means for detachably attaching these duct panels to the inner surfaces of the ceiling wall and the left and right side walls is not particularly limited, but, for example, on the inner surface side of the left and right side walls, it can be attached at a predetermined position. A locking pin is provided in a protruding manner, and a locking piece such as an angle member having a locking groove that engages with the locking pin is attached to both side edges of the side wall duct panel, and the locking groove of the locking piece is engaged. The side wall duct panel is attached by locking it to the stop pin, and the ceiling duct panel is placed on the upper part of the side wall duct panel attached along the left and right side walls, and the ceiling duct is installed in the groove provided on the upper end surface of the side wall duct panel. Examples include a hooking method that is fitted by fitting and locking a convex strip provided at the end on one side of the panel, a bolt-nut method that uses bolts and nuts, and other methods that can be assembled and removed. Door can be.

Further, regarding the cold storage wall which is disposed in the blowout side duct section from the refrigerator to the storage space and which stores the cool storage agent therein and comes into contact with the cold air passing through the blowout side duct section, it is mutually appropriate means. It is composed of a plurality of cold storage wall members that can be easily connected and disconnected. The structure of the cold storage wall member is not particularly limited, but preferably has one or two or more cylindrical or square tubular hollow portions that contain the cold storage agent and that are connected to each other. On the left and right sides of this hollow portion, there is a male connecting portion on one side and a female connecting portion on the other side to connect a plurality of cold storage wall members without using other connecting means such as bolts and nuts. In addition to being separable, each hollow part projects in the front-rear direction to perform heat exchange with the cool air, and when installed in the outlet side duct part, the inner surface side of the ceiling wall and the left and right side walls and the duct panel. It is preferable that each of the hollow portions has a ridge that maintains a space between them, and that each hollow portion has a heat exchange fin that radially projects to exchange heat with the cool air. Further, the upper and lower end openings may be closed by a means such as welding by providing an injection port for filling the cold storage agent, but preferably the upper end is opened and closed by an openable / closable stopper such as a cork stopper. However, more preferably, the upper and lower ends thereof may be opened respectively, and the upper end opening may be closed with an openable and closable stopper such as a cork stopper and the lower end opening may be closed with an openable and closable stopper such as a rubber stopper.

[Action]

In the cold storage refrigerator of the present invention, the refrigerator is attached to the ceiling wall or the left and right side walls of the refrigerator body, and the duct panel forming the duct portion of the cold air circulation path is detachably attached to the inner surfaces of the ceiling wall and the left and right side walls. Since it is attached, and the cold storage wall is composed of multiple cold storage wall members that can be connected / disconnected from each other, the duct panel or cold storage wall can be removed as needed during use to clean the duct section of the cold air circulation path. Or
Besides being repairable, these duct panels and cold storage walls can be reassembled on the inner surfaces of the ceiling wall and the left and right side walls.

〔Example〕

Hereinafter, the cold storage refrigerator of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

1 to 3 show a cold storage refrigerator according to an embodiment of the present invention. The regenerator of this embodiment has a ceiling wall 2 and left and right side walls 3 of a refrigerator body 1 made of a heat insulating material.
Duct panels 4 are arranged on the inner surfaces of a and 3b at a predetermined interval, and a duct portion 8 is formed between the ceiling wall 2 and the left and right side walls 3a and 3b and the duct panel 4, and the duct portion 4 is formed. In FIG. 8, a refrigerator 9 is disposed at an appropriate position to form a cool air circulation path between the refrigerator 9 and the storage space 10 in the refrigerator main body 1, and the blower duct 8a from the refrigerator 9 to the storage space 10 is provided. A part, that is, the blow-out side duct part 8b formed between the right side wall 3b and the right side wall duct panel 7 contains a cool storage agent therein and is in contact with the cold air passing through the blow side duct part 8b. 11 are provided. Then, on the ceiling wall 2 of the refrigerator body 1, the air inlet 12 and the cold air outlet 13 of the refrigerator 9 are provided.
And a refrigerator 9 is attached to the ceiling wall 2, and a suction side duct portion 8a formed below the refrigerator 9 between the left side wall 3a and the left side wall duct panel 6 is formed.
And the outlet side duct portion 8b are partitioned from each other, and the entire amount of air returned from the storage space 10 through the inlet side duct portion 8a is sent to the refrigerator 9, and the entire amount of cold air discharged from the refrigerator 9 is supplied to the outlet side duct portion. A partition plate 14 leading to 8b is provided.

The duct panel 4 is formed of a heat insulating panel having excellent heat insulating properties and light weight, and includes two ceiling duct panels 5 facing the ceiling wall 2 and two left side walls facing the left side wall 3a. It is composed of a duct panel 6 and two right side wall duct panels 7 facing the right side wall 3b.

The duct panel 4 is attached to the ceiling wall 2 and the left and right side walls 3a and 3b as shown in FIGS. 4 and 5.
Locking pins 15 are provided at predetermined positions on the inner surfaces of the left and right side walls 3a and 3b, and locking grooves 17 for engaging the locking pins 15 are formed on both side edges of the left and right side wall duct panels 6 and 7. Angle material
16 and attach the locking groove 17 of this angle material 16 to the locking pin
The left and right side wall duct panels 6 and 7 are attached to the inner surfaces of the left and right side walls 3a and 3b by locking to the left and right side wall duct panels 6 attached to the ceiling duct panel 5 along the left and right side walls 3a and 3b. , 7 and, as shown in FIG. 6, an eye metal having a ridge 18 is attached to one end of the ceiling duct panel 5, and the ridge 18 of this eye metal is attached to the left side duct panel 6. Groove 19 of the support member provided at the upper end
It is fixedly attached by being locked to.

Further, the cold storage wall 11 which is disposed in the blowout side duct portion 8b and which stores the cool storage agent therein and is in contact with the cold air passing through the blowout side duct portion 8b is, as shown in FIG. 3 and FIG. It is composed of a plurality of cool storage wall members 11a connected to each other so that they can be separated from each other. Each cool storage wall member 11a is composed of two cylindrical hollow portions 20 connected in parallel to each other and one hollow portion 20. Heat exchange between the bifurcated male connecting portion 21 projecting laterally, the bifurcated female connecting portion 22 projecting laterally from the other hollow portion 20, and the longitudinal direction projecting from each hollow portion 20 to cool air. And the ridges 23 that maintain the distance between the inner surface sides of the left and right side walls 3a and 3b and the left and right side wall duct panels 6 and 7 when arranged in the outlet side duct portion 8b, and the radial portions from each hollow portion 20. It has a heat exchange fin 24 which projects to the outside and exchanges heat with the cold air. Each hollow portion 20 of the cold storage wall member 11a is formed at the upper and lower end openings, respectively, and the lower end opening thereof is openably and closably closed by a rubber stopper, and the upper end opening thereof is openably and closably closed by a cork stopper.

Then, when mounting the right side wall duct panel 7 along the right side wall 3b, as shown in FIGS. 1 and 3, first, the leg storage material 25 is arranged at a predetermined position so that the cool storage wall 11 is mounted. ,
Next, the supporting mold member 26 is placed on the supporting mold member 26, and the supporting mold member 26 is
Each cold storage wall member 11a is sequentially arranged on the 26 while being connected to each other while being temporarily fixed by an appropriate means such as an adhesive tape,
After that, the right side wall duct panel 7 is attached, and the cool storage wall 11 formed by each cool storage wall member 11a by the right side wall duct panel 7 is provided between the right side wall 3b and the right side wall duct panel 7 and the outlet side duct portion 8b. It is designed to be installed inside.

In this embodiment, the air in the storage space 10 is guided between the lower end of the left side wall duct panel 6 arranged along the left side wall 3a and the floor surface 27 of the refrigerator body 1 into the suction side duct part 8a. An intake opening 28 for forming a cooling air storage wall, and between the cool storage wall 11, the right side wall duct panel 7 and the ceiling duct panel 5 arranged along the right side wall 3b, the blow side duct portion 8b to the cool storage wall. A blowout opening 29 is formed to blow cold air into the storage space 10 by passing through both left and right side surfaces of the cold air blower 11, and the cool air blowout side duct is formed by the right side wall 3b and the right side wall of the cold storage wall 11. In the portion 8b, the lower end of the cold storage wall 11 is wrapped around and rises between the cold storage wall 11 and the right side duct panel 7, and is blown out to the storage space 10 from the blowout opening 29.

In FIG. 1, reference numeral 30 is a cold air blow-out guide for guiding the cool air blown out from the blow-out opening 29 into the storage space 10 toward the central portion of the storage space 10, and in FIG. Is a door.

Therefore, according to the cold storage type refrigerator of this embodiment, the air sucked into the suction side duct portion 8a from the storage space 10 through the suction opening 28 at the time of use is guided to the partition plate 14 and the air suction port.
From 12 enters the refrigerator 9, where heat is exchanged to become cold air,
Next, this cold air enters the blow-out side duct portion 8b from the cold air outlet 13 and descends between the cold storage wall 11 and the right side wall 3b, and further wraps around the lower end of the cold storage wall 11 and the cold storage wall 11 and the right side wall. Ascend between the duct panel 7 and the storage space from the outlet 29
The fresh air in the storage space 10 is cooled to a predetermined temperature by circulating the cold air circulating in the storage space 10. At this time, the cooling of the air in the refrigerator 9 becomes insufficient,
Alternatively, if it becomes excessive, the cold air exchanges heat when passing through both sides of the cold storage wall 11 and is adjusted to a predetermined temperature.

When the cold air circulation path is contaminated with dust or dust due to long-term use, the duct panel 4 constituting the suction side duct part 8a or the blowout side duct part 8b of the cold air circulation path.
(Ceiling duct panel 5, left and right side wall duct panels 6, 7)
The cold storage wall 11 can be removed in the reverse order of the above assembly procedure, simply cleaned, and then reassembled in the same procedure as above.

In addition, by removing only the right side wall duct panel 7 that constitutes the blow-out side duct portion 8b in which the cold storage wall 11 is disposed, the cold storage wall 11 can be removed and incorporated by this, and thereby the storage space When the fresh food stored in 10 changes and the cooling temperature changes, the number of cold storage wall members 11a constituting this cold storage wall 11 can be increased or decreased to be adjusted.

[Effect of device]

According to the cold storage refrigerator of the present invention, since each duct panel forming the duct part of the cold air circulation path and each cold storage wall member constituting the cold storage wall can be easily attached and detached, the cold storage refrigerator can be used during use. When the inside of the duct is contaminated with dust or the like, the duct of the cold air circulation path can be disassembled and cleaned.

In addition, the amount of regenerator stored in the cold storage wall and the heat exchange area of this cold storage wall can be easily changed according to the type of fresh food to be stored, so it is optimal for the type of fresh food. A cold storage wall can be configured, and the cooling temperature in the storage space can be easily managed.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional explanatory view of a cold storage refrigerator according to an embodiment of the present invention, FIG. 2 is a cross-sectional explanatory view taken along the line II-II of FIG. 1, and FIG. 3 is each duct constituting a duct part for cold air circulation. FIG. 4 is an exploded view showing the panel and the cold storage wall, FIG. 4 is a partial explanatory view showing a mounting state of the duct panel, FIG. 5 is a sectional view taken along the line VV of FIG. 4, and FIG. FIG. 7 is a cross-sectional explanatory view showing a locked state with the ceiling duct panel, and FIG. 7 is a partial cross-sectional explanatory view showing a connected state of each cold storage wall member constituting the cold storage wall. Explanation of symbols (1) …… Refrigerator body, (2) …… ceiling wall, (3a) …… left side wall, (3b) …… right side wall, (4) …… duct panel, (5) …… ceiling duct Panel, (6) …… left side duct panel, (7) …… right side duct panel, (8) …… duct section, (8a) …… intake side duct section, (8b) …… blowout side duct section, (9) …… Refrigerator, (10) …… Storage space, (11) …… Cold storage wall, (12) …… Air inlet, (13) …… Cold air outlet, (14) …… Partition plate, (15) …… Locking pin, (16) …… Angle material (locking piece), (17) …… Locking groove, (18) …… Ribs, (19) …… Concave groove, (20) ...... Cylindrical hollow part, (21) ...... Bifurcated male connecting part, (22) …… Bifurcated female connecting part, (23) …… Projection, (24) …… Heat exchange fin, (25)… … Leg material, (26) …… Support material, (27) …… Floor surface, (28) …… Intake opening, (29) …… Blowout opening, (30) …… Cold air guide, (31) ……door.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naoko Mabuchi 500 Vinegar, Torahime-cho, Higashiasai-gun, Shiga Nippon Light Metal Co., Ltd.Shiga factory (72) Toshio Yanagimoto Vinegar, Torahime-cho, Higashi-Asai-gun, Shiga Japan 500 Light Metal Co., Ltd. Shiga Factory

Claims (1)

[Scope of utility model registration request] 1. A duct panel is provided on the inner surfaces of the ceiling wall and the left and right side walls of a refrigerator body formed of a heat insulating material at a predetermined interval, and between the ceiling wall and the left and right side walls and the duct panel. A duct portion is formed, and a refrigerator is disposed at an appropriate position in the duct portion to form a cool air circulation path between the duct portion and the storage space in the refrigerator body, and a blow-out side duct from the refrigerator to the storage space. In a cold storage refrigerator in which a cold storage agent is housed in a part or all of the portion and a cold storage wall that comes into contact with cold air passing through the blowout side duct portion is provided, a ceiling wall and left and right side walls of the refrigerator body. The air inlet and the cool air outlet of the refrigerator are formed in any of the above, and the refrigerator is attached to either the ceiling wall or the left and right sidewalls, and the duct panel is provided on the inner surface side of the ceiling wall and the left and right sidewalls of the refrigerator body. Both detachably attached , Cold accumulation refrigerator, characterized in that is constituted by a plurality of cold storage wall members which are connected to each other to be connectable, separating the cold storage walls.