JPH07243746A - Horizontal cooling storage - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a horizontal cooling refrigerator that allows cold air to pass through the entire lower surface of a cooler. A cooler 2 arranged in a cooling chamber 16 defined inside a machine room 10 and provided with a defrost heater 5,
By covering the side surface portion 2a facing the cold air suction hole 1 with the cover 18, by guiding the cool air from the cold air suction hole 1 between the lower surface 2b of the cooler 2 and the inner bottom surface 16a of the cooling chamber 16, Cool air is passed through the entire lower surface 2b of the cooler 2. Further, the drain receiving plate 23 is provided with the inclined cooling chamber 16
The cooler is provided at the end of the drain pan 6 on the lower surface of the cold air suction hole 1 side so as to face the lower end of the cover 18, and one end thereof extends obliquely upward toward the partition plate 4. Do not let the drain water from 2 go to the food storage room 7 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal refrigerating storage box for cooling a foodstuff storage chamber by blowing cool air into the foodstuff storage chamber from a cooling chamber defined by a machine room arranged in parallel on one side of a main body. Relates to the structure of a cooler provided in a cooling chamber.

[0002]

2. Description of the Related Art In a conventional horizontal cold storage such as an undercounter type cold storage, a compressor, a condenser, a blower, etc. are arranged on one side of a main body which is formed of a heat insulating box and whose inside serves as a food storage chamber. While arranging the installed machine rooms side by side, the inside of this machine room communicates with the foodstuff storage room, and the cooling room with the cool air outlet in the upper part and the cool air inlet in the lower part is defined by the heat insulation wall. As such storages, for example, Japanese Patent Publication No. 4-9986 and Japanese Patent Publication No. 5-8.
There is one disclosed in Japanese Patent No. 354.

In such a storage, a cooler equipped with a defrost heater corresponding to the cool air suction port is provided in the cooling chamber, and a cool air circulation fan is arranged corresponding to the cool air blowout port. The circulation fan blows cold air from the cold air outlet into the foodstuff storage chamber, sucks the cool air that has cooled the foodstuff storage chamber from the cold air inlet, and then cools it again with the cooler.

On the side of the food storage room on the machine room side, a partition plate for partitioning the food storage room and the cooling room is hung vertically from the top surface of the food storage room. Also,
Many cold air suction holes are formed in this partition plate,
The cold air blown out from the cold air outlet is blown into the foodstuff storage chamber through the gap formed between the partition plate and the top surface of the foodstuff storage chamber, and is then sucked in from the cold air suction hole. There is.

[0005]

However, in the horizontal cooling storage having such a structure, the cold air suction hole 1 is formed on the side of the cooler 2 as shown in FIG. 7, and therefore the cold air suction hole is formed. Most of the cool air that has passed through 1 and is sucked into the cool air suction port 3 passes through the side surface 2a of the cooler 2 and a portion of the lower surface 2b near the partition plate 4 as shown by the arrow, and the cooler lower surface 2b. The portion far from the partition plate 4 is almost not passed.

Here, when most of the cool air passes through the side surface of the cooler or the portion of the lower surface near the partition plate,
The frost that adheres to the cooler will also concentrate on that part.
When the frost is concentrated and adheres in this way, residual frost may occur even if defrosting is performed with the defrost heater, or frost grows and the cold air suction port is blocked, resulting in insufficient cooling of the food storage chamber. There was a problem that was the cause.

Particularly, as shown in FIG. 8, a side surface 2 of the cooler 2 is shown.
Since a has a large unevenness and the heater 5 is arranged in the lower part, the structure a has a structure in which frost and drain water do not easily drop even when defrosting is performed, and frost residue and growth of frost become remarkable. In addition,
Although it is possible to prolong the defrosting time in order to solve such a problem, if the defrosting time is lengthened, other problems such as an increase in the temperature of the food storage chamber and frost on the surface of the food will occur.

When defrosting is normally performed, the frost of the cooler becomes drain water and drops on the drain pan arranged on the lower surface of the slanted cooling chamber, and then outside the machine through the drain hole formed in the drain pan. It is designed to be drained to the
Since the distance between the side of the lower surface of the cooler 2b on the partition plate side and the drain pan 6 is short as shown in, when drain water or growing frost falls from the side surface 2a of the cooler 2 on the partition plate side,
There was a problem that these drain water and the like spilled from the drain pan 6 and dropped into the foodstuff storage chamber 7, causing water dripping.

Therefore, the present invention has been made to solve the above problems, and an object thereof is to provide a horizontal cooling storage cabinet capable of passing cold air through the entire lower surface of a cooler. is there.

[0010]

According to the present invention, there is provided a main body which is formed of a heat insulating box and has a food storage chamber inside, and a main body which is arranged in parallel with one side of the main body and which has a compressor, a condenser and a blower. And the like, and the inside of the machine room is defined by a heat insulating wall so as to communicate with the foodstuff storage room, and a cool air outlet is provided in the upper part and a cool air suction port is provided in the lower part, while the cool air is provided. A cooling chamber provided with a defrosting heater corresponding to the suction port and a cooling air circulation fan corresponding to the cold air outlet, and the food material on the machine room side of the food material storage room. A partition plate for the cooling chamber, which is provided at a suitable distance from the top surface of the storage chamber and has a large number of cold air suction holes formed therein,
Formed by a heat conductive member that covers a side surface portion of the cooler facing the cool air suction hole and guides cool air from the cool air suction hole between a lower surface of the cooler and an inner bottom surface of the cooling chamber. And a cover that has been removed.

[0011]

A cooling chamber communicating with the food storage chamber is defined by a heat insulating wall inside a machine room that is juxtaposed on one side of the main body having the food storage chamber inside, and is formed above the cooling chamber. A cooler equipped with a defrost heater is provided corresponding to the cold air outlet, and a cold air circulation fan is provided corresponding to the cold air suction hole formed in the lower portion. Then, a partition plate having a large number of cold air suction holes formed on the side of the food storage room on the machine room side is provided at an appropriate distance from the top surface of the food storage room to separate the cooling room from the food storage room. To do so. Further, a cover formed of a material having good heat conductivity covers the side surface of the cooler facing the cool air suction hole, and cool air from the cool air suction hole is provided between the lower surface of the cooler and the inner bottom surface of the cooling chamber. By conducting it, cold air is allowed to pass through the entire lower surface of the cooler.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a state in which one of the front doors of a horizontal cooling storage cabinet according to an embodiment of the invention is opened.
In the figure, the same reference numerals as those in FIG. 7 indicate the same or corresponding portions.

In FIG. 1, reference numeral 8 denotes an under-counter type storage main body (hereinafter referred to as a main body) which is composed of a horizontally elongated heat insulating box 8a having a front opening. The main body 8 opens and closes the front opening of the foodstuff storage chamber 7. Two insulating doors 9 that can be freely closed
And a machine room 10 is provided in parallel on one side.

On the other hand, the machine room 10 is provided with a condenser 11, a blower 12, a compressor (not shown), etc., as shown in FIG. 2, and in the upper space of the machine room 10, A cooling chamber 16 is defined by a heat insulating wall 13 so as to communicate with the food storage chamber 7, and a cool air outlet 14 is provided at an upper part and a cool air suction port 3 is provided at a lower part, while a cooler 2 and a cool air circulation fan 15 are arranged. Is defined.

The cooling chamber 16 is partitioned from the foodstuff storage chamber 7 by the partition plate 4, and the cold air blown out from the cold air outlet 14 is stored in the top portion 7a of the foodstuff storage chamber 7 and the foodstuffs of the partition plate 4. As shown by an arrow A, the air is blown into the foodstuff storage chamber 7 through a gap 17a formed between the upper end 4a bent toward the chamber 7.

In the present embodiment, as shown in the figure, the partition plate 4 also has an appropriate gap between the bottom portion 7b of the foodstuff storage chamber 7 and the side wall portion 7c of the foodstuff storage chamber 7 on the cooling chamber side. 1
7b is formed, and the cold air that has cooled the food storage chamber 7 is not limited to the cold air suction hole 1 of the partition plate 4 but also passes through this gap 17b as shown by arrow B and the cold air suction port 3
Is being sucked into.

On the other hand, in the figure, 18 is a cold air suction hole 1
Is a cover that covers the side surface 2a of the cooler 2 that faces the bottom surface of the cooler 2. By covering the side surface 2a of the cooler 2 with the cover 18 in this way, the cool air from the cool air suction hole 1 is indicated by the lower surface of the cooler 2 as shown by an arrow C. 2b and the inner bottom surface 16a of the cooling chamber 16 can be guided.

By guiding the cool air between the cooler 2 and the inner bottom surface 16a of the cooling chamber 16 in this way, the cool air from the cool air suction hole 1 is spread over the entire lower surface 2b of the cooler 2. Along with this, the frost on the lower surface 2b of the cooler becomes uniform, and the inside of the foodstuff storage chamber 7 can be cooled smoothly.

By the way, the cover 18 is formed of a member having good heat conductivity such as metal (for example, stainless steel or iron), and has curved portions formed at the upper and lower ends as shown in FIG. A fixing portion 20 that is caulked and attached to the heater 5 via the fixing portion to fix the cover 18 to the heater 5, and a fan attachment plate 15a provided on the fixing portion 20 and for attaching the cool air circulation fan 15 (see FIG. 1). And partition plate 4
A holding part 21 held by a support plate 19 (see FIG. 1) projecting from the cooling device 2 toward the cooler 2 and a lower part of the fixing part 20, the lower end of which faces a drain receiving plate 23 described later. The guide portion 22 guides the drain water from the cover 18 to the drain receiving plate 23.

The cover 18 constructed in this way
The holding part 21 is attached to the fan mounting plate 15a and the support plate 1
9 and the fixing portion 20 is fixed to the heater 5 by caulking the fixing portion 20 as shown in FIG. 4, so that the heater 5 can be brought into surface contact with the cover 18.

The heater 5 is thus covered 18
When the cover 18 is defrosted by bringing the cover 18 into surface contact, the heat of the heater 5 can be transferred to the entire bar 18 by the surface contact portion 5a shown in FIG. 3, so that the cover 18 can be defrosted reliably. You can do it.

The fixing portion 20 of the cover 18 is formed in a flat plate shape so that frost and drain water can easily drop during defrosting. Further, the guide portion 22 is formed in a flat plate shape, and the lower end portion thereof is bent in the direction toward the cooler 2, so that drain water or the like from the fixed portion 20 or the holding portion 21 is directed to the drain receiving plate 23. It is possible to guide it surely. Further, the cover 18 includes the heater 5
It can be attached by caulking and can be easily assembled,

On the other hand, the drain receiving plate 23 is provided at the cold air suction port side end of the drain pan 6 as shown in FIG. 2 so as to face the lower end of the guide portion 22 of the cover 18, and one end of the drain receiving plate 23 is placed on the partition plate 4. It is formed so as to extend obliquely upward. By thus extending one end of the drain receiving plate 23 obliquely upward toward the partition plate 4, the drain water from the cooler 2 and the cover 18 is prevented from being directed to the foodstuff storage chamber side. Therefore, it becomes possible to receive drain water reliably, and the food storage room 7
It is designed to prevent water from dripping inside.

By the way, the drain receiving plate 23 is formed of a material such as a metal having good thermal conductivity, and is attached to the drain pan 6 in a surface contact state as shown in FIG. Thus, during defrosting, the heat of the drain pan 6 is transferred from the surface contact portion 23a to the drain receiving plate 23, and the drain hole formed in the drain pan 6 does not freeze the drain water or the like that has dropped onto the drain receiving plate 23. It can be drained to the outside of the machine from 6a. In addition, as shown in FIG.
It will be held at 4.

Next, the cooling and defrosting operation of the horizontal cooling storage constructed as described above will be described.

When the foodstuff storage chamber 7 is cooled, the cool air from the cooler 2 is cooled by the cool air circulation fan 1 as shown in FIG.
After being blown out from the cool air outlet 14 at 5, the air is blown into the foodstuff storage chamber 7 through a gap 17a formed between the top portion 7a of the foodstuff storage chamber 7 and the upper end portion 4a of the partition plate 4. Then, after this, the cool air that has cooled the food storage chamber 7 passes through the gap 17b formed between the partition plate 4 and the bottom portion 7b of the food storage chamber 7 and the side wall portion 7c on the cooling chamber side and the cold air suction hole 1. It passes through and is sucked into the cold air suction port 3.

At this time, the side surface 2a of the cooler 2 is covered by the cover 1
Since it is covered with 8, the cool air from the cool air suction hole 1 is introduced between the lower surface 2b of the cooler 2 and the inner bottom surface 16a of the cooling chamber 16 and reaches the entire lower surface 2b of the cooler 2. . When the cool air spreads over the entire lower surface 2b of the cooler 2 in this way, the frost on the lower surface 2b of the cooler also becomes uniform, and the food storage chamber 7 can be cooled smoothly. At this time, frost also adheres to the cover 18.

On the other hand, after cooling the inside of the foodstuff storage chamber 7 for a certain period of time, when the heater 5 is energized to defrost,
The frost adhering to the cooler 2 melts and falls on the drain pan 6, and is drained out of the machine through the drain hole 6a formed in the drain pan 6. In addition, the frost attached to the cover 18 is heated and melted by the heater 5 that is in surface contact with the cover 18, propagates through the fixed portion 20 and the guide portion 22, and from the lower end portion of the guide portion 22 to the drain receiving plate 23. It falls on top and is drained out of the machine through the drain hole 6a of the drain pan 6.

Since one end of the drain receiving plate 23 extends obliquely upward toward the partition plate 4, the cover 1
The drain water from 8 can be certainly received, and water does not drip into the foodstuff storage chamber 7.

In this way, by covering the side surface 2a of the cooler 2 facing the cool air suction hole 1 with the cover 18, the cool air from the cool air suction hole 1 is brought into contact with the lower surface 2b of the cooler 2 and the inner bottom surface 16a of the cooling chamber 16. Can be guided during. Further, the drain receiving plate 23 is provided at the end of the drain pan 8 on the side of the cool air suction hole so as to face the lower end of the cover 18, and one end of the drain receiving plate 23 extends obliquely upward toward the partition plate 4 to cool the cooler. Food storage room 7 for drain water from 2
You can prevent them from going to your side.

[0032]

As described above, according to the present invention, the side surface of the cooler facing the cold air suction hole is covered with the cover formed of the material having good thermal conductivity to cool the cool air from the cold air suction hole. It can be guided between the lower surface of the vessel and the inner bottom surface of the cooling chamber. By thus guiding the cool air between the lower surface of the cooler and the inner bottom surface of the cooling chamber, it is possible to allow the cool air to pass through the entire lower surface of the cooler and to make the frost on the cooler uniform. You can

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which one of the front doors of a horizontal cooling storage cabinet according to an embodiment of the present invention is opened.

FIG. 2 is a side sectional view of the horizontal cooling storage on the machine room side.

FIG. 3 is a perspective view showing a state where a cover is attached to a heater.

FIG. 4 is a perspective view of a main part of the horizontal cooling storage cabinet.

FIG. 5 is a perspective view showing a state in which a drain receiving plate is attached to the drain pan.

FIG. 6 is a view showing how a drain receiving plate is attached to a drain pan with screws.

FIG. 7 is a side sectional view of a conventional horizontal cooling storage on the machine room side.

FIG. 8 is a perspective view of a main part of a conventional horizontal cooling storage cabinet.

[Explanation of symbols]

 1 Cold Air Suction Hole 2 Cooler 6 Drain Pan 10 Machine Room 16 Cooling Room 18 Cover 23 Drain Catch Plate

Claims (1)

[Claims] 1. A main body formed of a heat insulating box and having a storage chamber inside, a compressor, a condenser and a main body that are arranged in parallel on one side of the main body.
A machine room in which a blower or the like is installed, and a cool air outlet and a cool air suction port that are defined by a heat insulating wall so as to communicate with the storage room inside the machine room, while corresponding to the cold air suction port A cooling chamber provided with a cooler equipped with a defrosting heater and a cooling air circulation fan corresponding to the cold air outlet, and a top surface of the storage chamber on the side of the storage chamber on the machine room side. A partition plate with the cooling chamber provided with a large number of cold air suction holes formed at appropriate intervals, and a side surface part of the cooler facing the cold air suction hole, and from the cold air suction hole. A horizontal cooling storage, comprising: a cover formed of a member having good heat conductivity that guides cool air between the lower surface of the cooler and the inner bottom surface of the cooling chamber.