JP2001304744A - Cooling storage apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To expose a condenser to low-temperature air by simple measures. SOLUTION: A longitudinal duct 18 having an intake 20 at the lower end is provided on the whole of the right lateral side from a refrigerator main body 10 to a machine chamber 14. In the machine chamber 14, a lateral duct 25 is formed between two partition plates 21 and 22 and it is made to communicate, at a connecting port 28 in the right end, with the upper end of the longitudinal duct 18. In an opening 35 of the rear partition plate 21, the face on the suction side of a condenser 31 is so fitted as to face the lateral duct 25. A filter 40 is fitted to the connecting port 28 so that it can be put in and out from the front. When a condenser fan 32 is driven with the startup of refrigerating equipment 30, ambient air of a relatively low temperature is sucked from the intake 20 on the lower end side of the longitudinal duct 18 and it rises through inside the duct 18, passes through the filter 40 and flows into the lateral duct 25, in a state of oil, dust and the like being removed therefrom. Then, it passes through the condenser 31 and cools this, and exhaust heat after heat exchange is exhausted from an exhaust opening provided in a rear side plate 15B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling storage with an improved ventilation path for a condenser.

[0002]

2. Description of the Related Art Commercial refrigerators generally have a structure in which a machine room is provided on the upper surface of a refrigerator body and a refrigerating device is housed in the machine room. In particular, in a part for cooling a condenser, a fan is driven. Thus, outside air is sucked from an intake port of a front panel of the machine room and applied to the condenser, and the exhaust heat after cooling the condenser is exhausted from the rear side of the machine room. On the other hand, commercial refrigerators of this type are often arranged in a kitchen adjacent to cooking appliances that generate heat, such as a fryer, and are of a type that sucks outside air from the front of the machine room as described above. Then, warm air emitted from the cooking appliance and staying near the ceiling of the kitchen is applied to the condenser, and there is a tendency that the efficiency of the cooling operation deteriorates.
As a countermeasure, as disclosed in Japanese Utility Model Laid-Open No. 53-80872 and Japanese Utility Model Laid-Open No. 63-49478, a vertical duct having an inlet at a lower end is provided on the left and right sides and the back of the refrigerator body. It is known that the upper end is extended into a machine room so as to correspond to the suction side of the condenser, and relatively low-temperature air near the floor of the kitchen is drawn to hit the condenser.

[0003]

However, in the prior art, the suction side of the condenser is arranged to face the left or right side or rear side of the machine room in order to match the position of the outlet of the duct. In addition, the arrangement structure of the condenser and the entire refrigeration system needs to be significantly changed, resulting in a problem that the cost cannot be easily coped with and the cost cannot be easily dealt with. The present invention has been completed based on the above circumstances, and an object of the present invention is to make it possible to blow low-temperature air to a condenser with a simple structure.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, a machine room is formed at an upper portion of a storage main body, and a part of a refrigeration apparatus is formed in the machine room. In the cooling storage provided with a condenser and a fan for blowing air to the condenser, a vertical duct having an inlet at a lower end is provided on a side surface of the storage main body, and a front portion in the machine room. A horizontal duct is defined by a partition plate, is connected to the upper end of the vertical duct, and the suction side of the condenser faces the inner surface of the horizontal duct.

According to a second aspect of the present invention, in the first aspect, a filter is attached to a connection end side of the horizontal duct with the vertical duct so as to be removable from a front side. Having. The invention of claim 3 is
3. The machine room according to claim 1, wherein another partition plate is provided on a rear side of the front plate of the machine room by a predetermined dimension, and the horizontal duct is formed on the rear side of the partition plate. 4. It is characterized in that a storage chamber capable of storing an electric device such as a control box is formed between the partition plate and the front plate. A fourth aspect of the present invention is characterized in that, in the third aspect, a bottom plate of the horizontal duct is formed in a raised bottom shape, and a wiring space is formed on a lower surface side of the bottom plate.

[0006]

When the fan is driven, air is drawn from the inlet at the lower end of the vertical duct, rises in the vertical duct, and then flows into the horizontal duct to flow into the horizontal duct. Is applied to the condenser facing the back of the house. Since the low-temperature air at the bottom of the installation location of the cooling storage can be drawn and hit the condenser, the condenser can be cooled well and the cooling efficiency can be increased. Moreover, the vertical duct can be formed by retrofitting, and the horizontal duct can also be formed by placing a partition plate in the machine room, in other words, without changing the arrangement of the refrigeration system including the condenser with respect to the existing cooling storage. It can be easily dealt with simply by adding duct components.

<Invention of claim 2> Oil and dust etc. are removed from the air applied to the condenser by the filter, and since this filter can be inserted and removed from the front side, maintenance such as cleaning is easy. I can do it. <Invention of Claim 3> Since a housing chamber is provided which is isolated from the lateral duct through which air is blown to the condenser and the electric device is housed therein, it is possible to prevent oil and dust from adhering to the electric device. It is. <Invention of Claim 4> By wiring using the wiring space formed under the bottom plate of the horizontal duct, oil and dust are prevented from adhering to the wiring.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. <First Embodiment> FIGS. 1 and 2 show a first embodiment of the present invention.
It will be explained by. The refrigerator of this embodiment includes a refrigerator main body 10 formed of a vertically long heat-insulating box with a front opening, the inside of which is a storage room, and two upper and lower single-opening doors 11 provided at the front opening. At the same time, it is supported by legs 12 provided at the four corners of the bottom surface. A machine room 14 is formed on the upper surface of the refrigerator body 10. The machine room 14 is formed over the entire upper surface of the refrigerator body 10 as shown in FIG.
And is covered with a top plate 16. Among them, the front plate 15A can be pivotally opened and closed to the front side via a hinge or the like.

A vertical duct 18 is provided on the entire right side of the refrigerator main body 10 to the machine room 14 as viewed from the front. The vertical duct 18 is constituted by a duct forming plate 19 formed by bending a sheet metal into a shallow groove shape. The lower end side is opened to serve as an intake port 20, and the upper end is closed. In the machine room 14, the rear partition plate 2 is located at a position slightly before the center in the depth direction.
1, and a front partition plate 22 is stretched at a position in front thereof at a predetermined interval. As a result, the rear storage chamber 2 that houses the refrigerating device 30 and the like behind the rear partition plate 21
4, a horizontal duct 25 is formed between the two partition plates 21 and 22, and a front storage chamber 26 is formed between the front partition plate 22 and the front panel 15A of the machine room 14.

The horizontal duct 25 has a connection port 28 opened at the right end thereof, and the connection port 28 is connected to the vertical duct 1 described above.
8 communicates with the upper end. In the rear storage chamber 24, a condenser 31, a condenser fan 32, and a compressor 33 constituting the refrigeration apparatus 30 are sequentially arranged rearward, and a cooler and a refrigerant installed in the storage chamber are provided. A well-known refrigeration cycle is configured by being circulated through piping. A first opening 35 is formed at the center in the width direction of the rear partition plate 21, and the suction-side surface of the condenser 31 is fitted flush with the first opening 35, that is, faces the horizontal duct 25. A large number of exhaust ports (not shown) are opened in the rear face plate 15B of the rear storage chamber 24. An electrical box 37 is provided on the right side of the refrigeration apparatus 30, and the front surface of the electrical box 37 is also fitted flush with a second opening 38 formed in the rear partition plate 21.

The connection port 28 of the horizontal duct 25 has
The filter 40 is mounted. A guide rail 41 is provided on the lower surface of the connection port 28, while an insertion port 42 is formed at the right end of the front partition plate 22, and the filter 40 can be inserted and removed from the insertion port 42 along the guide rail 41. I have. A control box 44 for setting various devices and the like is provided in the front accommodation room 26. The operation of the first embodiment is as follows. When the condenser fan 32 is driven in accordance with the activation of the refrigeration apparatus 30, outside air is sucked from the intake port 20 on the lower end side of the vertical duct 18 as shown by the arrow in FIG. After that, as shown by the arrow in FIG. 2, the oil flows into the horizontal duct 25 through the filter 40 in a state where oil, dust, and the like are removed.
Thereafter, the heat passes through the condenser 31 to cool it, and the heat exchanged heat is discharged from the exhaust port of the rear face plate 15B. When cleaning the filter 40, the front panel 1 of the machine room 14
After opening 5A, the filter 40 may be pulled out from the insertion port 42.

As described above, according to the present embodiment, since the outside air at the bottom of the kitchen R in which the refrigerator is installed is drawn to hit the condenser 31, for example, as shown in FIG. Even if the equipment X is installed nearby,
The relatively low temperature air can be applied to the condenser 31 without being affected by the heat, so that the condenser 31 can be cooled well and the cooling efficiency can be increased. In addition, the vertical duct 18 can be formed later, and the horizontal duct 25 can also be formed by stretching the partition plates 21 and 22 in the machine room 14. In other words, the refrigeration system including the condenser 31 for the existing refrigerator. The change in the arrangement of the ducts 30 can be minimized, and it can be easily dealt with simply by adding mainly the components of the ducts 18 and 25.

Further, since the filter 40 is mounted in the machine room 14 so as to be removable from the front side, maintenance such as cleaning and replacement can be easily performed. The above condenser 31
Although the oil and dust mixed with the filter 40 are removed by the filter 40, there is a possibility that the air will remain without being completely removed. In this embodiment, a front storage chamber 26 is further defined before the horizontal duct 25, and the control box 4
Because of the structure in which the condenser 4 is installed, the air applied to the condenser 31 does not pass through the front storage chamber 26, and therefore, the oil and dust are prevented from adhering to the control box 44 operated by touching with the hand.

Note that both the vertical duct 18 and the horizontal duct 25
In order to efficiently introduce the outside air, it is necessary to form the airtight airtight.
In order to prevent a short cycle in which exhaust heat after cooling the condenser 31 enters the suction side of the condenser 31, it is necessary to assemble airtightly. On the other hand, the top plate 16 is
It is not necessary to cover the entire surface of the compressor 4, and it may be removed particularly on the rear side corresponding to the upper part of the compressor 33. Further, the rear plate 15B of the machine room 14 may be removed.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the first embodiment is further improved, and the following mainly describes the differences, and portions having the same functions as those in the first embodiment are denoted by the same reference numerals as appropriate. The duplicate description will be simplified or omitted. Similarly, a vertical duct 18 having a suction port 20 at the lower end is provided on the entire surface on the right side as viewed from the front extending from the refrigerator body 10 to the machine room 14A. In the machine room 14A, the horizontal duct 2 is similarly placed between the rear partition plate 21A and the front partition plate 22.
5A are formed. Here, both left and right ends of the rear partition plate 21A are obliquely bent toward the back side, and particularly, a frontage of the connection port 28A communicating with the vertical duct 18 is widened. Similarly, a filter 40A is attached to the connection port 28A so as to be removable from the front side.

A wiring storage box 50 shaped like a shallow box is laid on the bottom surface extending between the horizontal duct 25A and the front storage chamber 26. Further, the condenser 31, the condenser fan 32 and the compressor 3 constituting the refrigeration apparatus 30
Third, the electrical box 37A is placed on the unit base 51 and installed in the rear accommodation room 24A. this house,
The suction-side surface of the condenser 31 is connected to the opening 35 of the rear partition plate 21A.
And faces the horizontal duct 25A. The electrical box 37A is retracted into the rear accommodation room 24A.

On the other hand, a breaker box 54 provided with a breaker 53 and a fuse is provided separately from the electrical box 37A, and the breaker box 54 is attached to the front partition plate 22 in the front accommodation room 26. Etc.
It is housed alongside the control box 44. The wirings 55 and 56 drawn out from the breaker box 54 and the control box 44 are passed through the window holes 57 on the side surface into the wiring storage box 50, and are connected to the electrical box 3 in the rear storage chamber 24A.
7A and the like.

The operation of the second embodiment is as follows.
When the condenser fan 32 is driven in accordance with the activation of the refrigeration apparatus 30, outside air is sucked from the intake port 20 on the lower end side of the vertical duct 18 and rises inside the vertical duct 18, and is indicated by an arrow in FIG. As described above, the oil, dust and the like are removed through the filter 40A and flow into the horizontal duct 25A.
1 and cools it, and the heat exchanged heat is discharged from the exhaust port of the rear plate 15B. When cleaning the filter 40A, the filter 40A may be pulled out from the insertion port 42 after opening the front plate 15A of the machine room 14A. Further, by opening the front plate 15A, the operation of the control box 44 and the breaker box 54 can be performed.

In the second embodiment, the following advantages can be obtained. Since the cooling air for the condenser 31 that is easily contaminated is allowed to flow through the ducts 18 and 25A, the exterior of the refrigerator itself can be kept clean. Since the opening of the connection port 28A serving as the introduction port of the horizontal duct 25A is widened, introduction of outside air is performed more efficiently. In addition, since the horizontal duct 25A is disposed in front of the condenser 31, the condenser 31 is prevented from being inadvertently touched by human hands.

Since the breaker box 54 is separated from the electrical box 37A and brought to the front accommodation room 26, the operation becomes easy. The front accommodation room 26 is provided with a horizontal duct 25A.
And the air applied to the condenser 31 does not pass therethrough. Therefore, even if there is still oil or dust remaining after passing through the filter 40A in this air, it adheres to the breaker box 54 and the control box 44. There is no danger that these malfunctions will occur, and manual operations and the like will be easier. In addition, the wiring 55 required because the breaker box 54 was separated from the electrical box 37A,
The wiring 56 drawn out from the control box 44 is connected to the wiring storage box 50 isolated on the bottom side of the horizontal duct 25A.
Since the wires 55, 56 are prevented from being contaminated with oil or dust, the wires 55, 56 are hidden, so that the appearance is reduced.

<Other Embodiments> The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) The front panel of the machine room may have a structure that can be opened and closed by a simple fitting type. (2) The vertical duct may be provided on the left side as viewed from the front of the refrigerator, depending on the purpose of use such as the installation location. (3) The filters 40 and 40A shown in the first and second embodiments are large and extend toward the front, and the front edge faces the insertion port provided at the right end of the front panel 15A of the machine room. You may not do so. Then, the filter can be taken in and out without opening the front plate 15A. In addition, when such a filter is mounted in a reverse direction, the number of times of clogging can be reduced by delaying the time of clogging.

[Brief description of the drawings]

FIG. 1 is a partially cutaway schematic front view showing an installation state of a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a plan sectional view showing a machine room.

FIG. 3 is a cross-sectional plan view showing a machine room according to a second embodiment.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Refrigerator main body 14, 14A ... Machine room 15A ... Front plate 15B ... Rear plate 18 ... Vertical duct 20 ... Inlet 21, 21A ... Rear partition plate 22 ... Front partition plate 24, 24A ... Rear accommodation room 25, 25A ... Side Duct 26 Front chamber 28 A Connection port 30 Refrigerator 31 Condenser 32 Condenser fan 35 Opening 40 40 A Filter 44 Control box 50 Wiring storage box 54 Breaker box 55 56 ... wiring

Claims (4)

[Claims] 1. A machine room is formed at an upper portion of a storage body,
In this machine room, in a cooling storage provided with a condenser constituting a part of the refrigeration apparatus and a fan for blowing air to the condenser, a vertical duct having an inlet at a lower end is provided on a side surface of the storage main body. In addition, a horizontal duct is defined by a partition plate at a portion on the near side in the machine room, is connected to an upper end of the vertical duct, and a suction side of the condenser faces a back surface of the horizontal duct. A cooling storage. 2. The cooling storage according to claim 1, wherein a filter is mounted on a connection end side of the horizontal duct with the vertical duct so as to be removable from a front side. 3. A separate partition plate is provided on a rear side of the front plate of the machine room by a predetermined dimension to form the horizontal duct on the rear side of the partition plate. 3. The cooling storage according to claim 1, wherein a storage chamber capable of storing an electrical device such as a control box is formed between the storage chambers. 4. The cooling storage according to claim 3, wherein a bottom plate of the horizontal duct is formed in a raised bottom shape, and a wiring space is formed on a lower surface side of the bottom plate.