JP2003106737A - Cooling unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling unit capable of easily fixing a side panel to a main body. SOLUTION: The cooling unit 1 comprises a cooler 8 and a fan 9 for discharging cold air heat exchanged with the cooler 8 from an outlet 6A which are disposed inside an armoring case 7. The armoring case 7 has the main body 10 and side panels 12 and 12 closing the both side surfaces of the main body 10. Each side panel 12 has a horizontal engagement pawl 24 with an upward engagement part 25 at the tip. The main body 10 has an insertion hole 26 opened outward for inserting the engagement pawl 24 into and an engagement hole 27 opened on the top to be engaged with the engagement part 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling unit provided with a cooler in an outer case and a blower for discharging cool air that has exchanged heat with the cooler through a discharge port.

[0002]

2. Description of the Related Art Conventionally, a refrigerator to which this type of cooling unit is applied is, for example, a prefabricated cold storage (freezer / refrigerator) or a commercial cooling storage, and a cooler is arranged on the ceiling wall of the storage.
It has a structure in which cool air is forcibly convected from the ceiling to the inside of the refrigerator by a blower.

Such a cooling unit is a cooling device constituted by a compressor, a condenser and the like arranged in a separately placed outdoor unit in an outer case having a damper formed on the front surface and a cooling constituting a known refrigeration cycle. And a blower for cooling that discharges cool air to the cooler on the damper side.

The conventional exterior case is formed of a plate-shaped member such as aluminum, and has a main body having openings on both side surfaces, a lower surface and a front surface, a frame cover for opening and closing the lower surface opening of the main body, and both sides of the main body. It is composed of side plates that respectively close the surfaces. Then, the opening formed on the front surface of the outer case is used as a discharge port of the cool air, and the cool air discharged from the blower is discharged.

[0005]

On the other hand, since the side plate constituting the outer case of the conventional cooling unit is attached to the main body of the outer case by fixing the lower side of the side plate to the main body by screws, the upper end of the side plate is prevented. There is a problem that a gap is created between the upper body and the upper end of the main body, and the cool air in the outer case leaks through the gap.

Further, when performing maintenance of the cooler and the blower in the outer case, the side plate of the outer case is removed. In such a case, the screws for fixing the outer case and the side plate must be removed. However, there was a problem that maintenance workability was poor.

Therefore, the present invention has been made in order to solve the conventional technical problems, and an object of the present invention is to provide a cooling unit capable of easily and surely fixing the side plate to the main body. To do.

[0008]

A cooling unit according to the present invention comprises a cooler in an outer case and a blower for discharging cool air, which has exchanged heat with the cooler, from a discharge port. The outer case includes a main body and side plates that close both side surfaces of the main body, and the side plate includes a lateral engaging claw having an upward engaging portion at a tip thereof.
It is characterized in that it is provided with an insertion hole that is opened to the outside into which the engaging claw is inserted, and an engagement hole that is formed in the inner part of this insertion hole and that has an upper surface opening with which the engaging portion engages.

According to the cooling unit of the present invention, the outer case is provided with a cooler and a blower for discharging the cool air that has exchanged heat with the cooler from the discharge port. A main body and side plates for closing both side surfaces of the main body, the side plate has a lateral engagement claw having an upward engaging portion at a tip thereof, and the main body is an outer side in which the engagement claw is inserted. Since there is an insertion hole that is open at the top and an engagement hole that is formed at the back of the insertion hole and that is open at the top surface where the engagement portion engages, the engagement claw is inserted into the engagement hole to engage the engagement claw. The side plate can be easily fixed to the main body simply by engaging the joint portion with the engagement hole formed in the upper surface of the main body.

In the cooling unit according to the second aspect of the present invention, in addition to the above-mentioned invention, the engaging claw of the side plate becomes lower toward the tip,
The upper end of the engaging portion is flush with the upper surface of the side plate or lower, and the outer edge of the engaging hole of the main body is lower than the upper surface of the main body.

According to the cooling unit of the invention of claim 2,
In addition to the above invention, the engaging claw of the side plate becomes lower toward the tip, the upper end of the engaging portion is flush with the upper surface of the side plate or lower, and the outer edge of the engaging hole of the main body is the main body. Since the height is lower than the upper surface, the engagement portion of the engagement claw and the engagement hole can be reliably engaged, and the engagement portion of the side plate is Since it does not protrude from the engagement hole of the main body, the appearance can be improved.

In addition to the above-mentioned inventions, a cooling unit according to a third aspect of the present invention includes a frame cover which is formed by closing a lower surface of a main body and bending at a plurality of places, and the frame cover is positioned at right and left edges. It has a flange formed upright in a portion other than the portion corresponding to the bent portion, and the side plate has a protrusion that enters the bent portion of the frame cover.

According to the cooling unit of the invention of claim 3,
In addition to each of the above inventions, a frame cover is provided that closes the lower surface of the main body and is bent at a plurality of points. Since the side plate has a protrusion that enters the bent portion of the frame cover, the side plate can be reliably engaged with the frame cover, and the frame cover is not formed with the flange. It is possible to avoid the inconvenience that cold air leaks from the inside.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a vertical side view of a cooling storage R to which the present invention is applied, FIG. 2 is a perspective view of a cooling unit 1 to which the present invention is applied, FIG. 3 is a vertical side view of the cooling unit 1, and FIG. 4 is a perspective view of the cooling unit 1. Each front view is shown.

The cooling unit 1 to which the present invention is applied is installed in a cooling storage R such as a prefabricated refrigerator / freezer. The cooling storage R is composed of a heat insulating box 3, and a storage chamber 2 is formed in the heat insulating box 3. The heat insulating box 3 is formed in a box shape by combining a heat insulating panel 4 having a convex portion or a concave portion at a connecting portion with an adjacent panel.

Further, on the front wall of the heat-insulating box 3, there is an article entrance / exit through which articles such as stored foods are put in and taken out, and one side of the article entrance / exit is rotatably supported to be openably / closably closed, and the storage chamber 2 is provided. A heat insulating door 5 for sealing is provided.

The cooling unit 1 is, for example, a heat insulating box 3
Is installed on the ceiling surface 3A on the side of the storage room 2 and is constituted by a compressor, a condenser, and the like arranged in an external unit (not shown) separately installed in an exterior case 7 having a damper 6 formed on the front surface. It has a cooler 8 that constitutes a known refrigeration cycle with a cooling device, and a cooling blower 9 that discharges cool air to the cooler 8 on the damper 6 side. The cooler 8 is provided on the damper 6 side, and the cooler blower 9 is provided on the side of the cooler 8 and at the rear of the cooling unit 1. In the figure, 14 is a fan case provided below the blower 9 for the cooler.

Below the cooler 8, a drain pan 16 having an opening on the upper surface is formed at the rear side, that is, on the side opposite to the damper 6, by bending the outer peripheral edge of the plate-shaped member upward at a substantially right angle. It is provided with a low inclination on the side of the air blower 9. A drain hole (not shown) is formed on the rear wall of the drain pan 16, and a drain pipe 17 as shown in FIGS. 3 and 4 is attached to the drain hole. A hot gas pipe 19 for heating the drain water stored on the drain pan 16 is provided on the lower surface of the drain pan 16.

On the other hand, as shown in FIGS. 2 and 3, the outer case 7 is made of a plate-shaped member such as aluminum, and has a main body 10 having openings on both side surfaces, a lower surface and a front surface, and a lower surface opening of the main body 10 can be freely opened and closed. A frame cover 11 that closes the main body 10 and side plates 1 that close both side surfaces of the main body 10.
It is composed of 2 and 12. The opening formed on the front surface of the outer case 7 serves as a discharge port 6A for discharging the cool air discharged from the cooler blower 9.

2B is a holding portion 12B for holding a screw member (not shown) for fixing the cooling unit 1 to the top surface of the storage chamber 2. Also, the side plate 12
Are symmetrically formed, and the side plates 12 on both sides are configured as a common member. This allows
The number of parts of the side plate 12 can be reduced, and the cost can be reduced.

Now, the mounting structure of the side plate 12 of the outer case 7 will be described with reference to FIGS. Figure 5
Is a perspective view seen from the inside of the outer case 7, and FIG.
7 is a perspective view of the exterior case 7 in a disassembled state, FIG. 7 is a partial cross-sectional view of an upper portion of the exterior case 7, and FIG. 8 is a perspective view of a lower corner portion of the exterior case 7.

The frame cover 11 constituting the exterior case 7 has a rear surface portion 11 in which the rear is slightly inclined upward.
A bent portion 11A that forms C and a bent portion 11B that forms a front surface portion 11D that is inclined forward slightly upward are formed, and a cold air suction port 13 is formed in the rear surface portion 11C. . Further, flanges 20 which are erected upward are formed on the left and right edges of the frame cover 11. Here, the flange 20 is not formed at a portion corresponding to the portion where the bent portions 11A and 11B are formed, and the left and right edges of the portions corresponding to the bent portions 11A and 11B have a notch 21. Has been formed.

The frame cover 11 is rotatable about the rear end of the rear surface portion 11C of the frame cover 11 by a hinge member 10A provided at the rear end of the lower surface opening of the main body 10, and can be opened downward. It is said that.

On the other hand, the side plates 12, 12 are formed with flanges 22 whose outer circumferences are bent inward, and the notches 21 of the frame cover 11 are formed at the ends of the flanges 22 formed at the bottom of the side plates 12. A protrusion 23 is formed at a position corresponding to the portion where the groove is formed so as to substantially exactly engage with the notch 21.

At the tip of the side plate 12, that is, at the end of the flange 22 formed at the upper side on the frame cover 11 side, sideways engaging claws 24 projecting toward the frame cover 11 are formed, for example, on both sides. Has been done. This engaging claw 24
7 is formed so as to be lower toward the tip as shown in FIG. 7, and the engaging portion 2 facing upward is provided at the tip of the engaging claw 24.
5 is formed. The upper end of the engaging portion 25 is formed so as to be flush with the upper surface of the side plate 12 or at a position lower than that.

On the other hand, on both sides of the main body 10, as shown in FIG. 7, insertion holes 26 opened outward, that is, on the side plate 12 side, at positions corresponding to the positions where the engaging claws 24 of the side plate 12 are formed. Are formed. Further, in the inner part of the insertion hole 26, there is formed an engagement hole 27 which opens to the upper surface corresponding to the position where the engagement portion 25 of the engagement claw 24 engages. The outer edge of the engagement hole 27 is formed lower than the upper surface of the main body 10. In FIG. 2, the engagement hole 27 is
Not shown.

The mounting structure of the outer case 7 having the above structure will be described. First, the frame cover 11 is rotatably attached to the lower surface opening of the main body 10 by the hinge member 10A. Then, the main body 10 and the frame cover 1
The side plates 12 and 12 are attached to both side surfaces of the plate 1. Here, in the side plate 12, the protrusion 23 formed on the side plate 12 is inserted into the notch 21 of the frame cover 11 as shown in FIG. Then, the engaging claw 24 formed at the tip of the side plate 12 is inserted into the insertion hole 26 of the main body 10. Insertion hole 26
Push the engaging claw 24 inserted into the inside of the main body 10,
The engaging portion 25 formed at the tip of the engaging claw 24 is matched with the engaging hole 27 formed in the upper surface of the main body 10.

As a result, the side plate 12 inserts the engaging claw 24 formed at the tip as described above into the insertion hole 26 formed in the main body 10, and the engaging portion 25 of the engaging claw 24 is placed on the upper surface of the main body 10. It can be easily fixed to the main body 10 only by engaging with the engagement hole 27 formed in.

Further, as described above, the engaging claws 24 of the side plate 12 are provided.
Becomes lower toward the tip, the upper end of the engaging portion 25 is flush with the upper surface of the side plate 12 or lower, and the outer edge of the engaging hole 27 of the main body 10 is lower than the upper surface of the main body 10. Therefore, the engagement portion 25 of the engagement claw 24 and the engagement hole 27 can be reliably engaged with each other. Further, in a state where the main body 10 and the side plate 12 are engaged,
Since the engaging portion 25 of the side plate 12 does not project upward from the engaging hole 27 of the main body 10, the appearance can be improved.

Furthermore, the projection 23 formed at the lower end of the side plate 12 has a bent portion 1 of the frame cover 11 from a notch 21 in which the flange 20 of the frame cover 11 is not formed.
The side plate 12 can be reliably engaged with the frame cover 11 because the side plate 12 is inserted onto the 1A and 11B. In addition, the protrusion 23 of the side plate 12 makes it possible to avoid the inconvenience that the cool air in the outer case 7 leaks to the outside from the notch 21 portion of the frame cover 11 where the flange 20 is not formed. Since the notch 21 portion of the frame cover 11 is not exposed to the outside, the appearance can be improved.

Next, the cooler 8 arranged in the outer case 7 of the cooling unit 1 and the drain water drainage mechanism of the cooler 8 will be described with reference to FIG. The cooler 8 is provided on the damper 6 side of the outer case 7, and is formed by bending the refrigerant pipe 8A multiple times. And
In the refrigerant pipe 8A that constitutes the cooler 8, the upper side of the cooler 8 is the upstream side of the refrigeration cycle during the cooling operation, and the lower side of the cooler 8 is the upstream side of the refrigeration cycle during the defrosting operation. This is so-called reverse hot gas.

On the other hand, at the lower end of the cooler 8, FIG.
A partition plate 30 as shown in FIG. 3 is located above the drain pan 16 and is attached by a plurality of, in this embodiment, two clips 32. The partition plate 30 is made of a plate-shaped steel plate material, and in this embodiment, the partition plate 30 is used.
Through holes 31 as a plurality of drain water passage portions are formed penetrating from the upper surface to the lower surface in the longitudinal direction of. In addition, a plurality of notches 33 in which the clips 32 are located are formed at the front end and the rear end of the partition plate 30, and two notches 33 are formed in this embodiment.

Here, since the drain water passage portion formed on the partition plate 30 is constituted by the through holes 31, the productivity can be improved, and the lump of ice dropped on the partition plate 30 can be drain pan 16. It is possible to avoid falling up.

The front-rear dimension of the partition plate 30 is smaller than the front-rear dimension of the drain pan 16.
When attached to the lower end of the cooler 8 by the clip 32, a gap S is formed between the front and rear ends of the partition plate 30 and the front and rear ends of the drain pan 16.

The clip 32 is composed of, for example, a rod-shaped member made of metal, and both ends of the rod-shaped member are bent upward along the refrigerant pipes 8A constituting the lower end portions on both sides of the cooler 8, respectively. Has been done. Further, a holding portion 32A having a curved shape is formed at an end portion of the clip 32 along an outer peripheral portion located outside the refrigerant pipe 8A.

When the partition plate 30 is attached to the lower end of the cooler 8 with the above structure, first, the partition plate 30 is brought into contact with the lowermost refrigerant pipe 8A of the cooler 8, and then the clip 32 is partitioned. Install along the notch 33 in the plate 30. As a result, the clip 32 can be easily positioned and the workability of attaching the partition plate 30 can be improved.

Then, the holding portion 32A of this clip 32
The partition plates 30 are fixed to the lower end of the cooler 8 by engaging with the refrigerant pipes 8A at the lower ends of both sides of the cooler 8, respectively.

Thus, the drain water generated from the cooler 8 by the defrosting operation of the cooler 8 is received by the partition plate 30 attached to the lower end of the cooler 8 and then formed on this partition plate 30. The drain water is smoothly received on the drain pan 16 by passing through the through hole 31 as a passage portion of the drain water and the gap S formed at the front and rear ends. The drain water received on the drain pan 16 is discharged to the outside from the drain pipe 17, and the hot gas discharged from the compressor (not shown) is caused to flow through the hot gas pipe 19, so that the drain pan 16 is drained. The drain water above can be heated.

Here, since the defrosting operation of the cooler 8 is performed by circulating a high-temperature refrigerant to the cooler 8 from below the cooler 8, the refrigerant having the highest temperature is passed to the bottom of the cooler 8. The partition plate 30 attached to the lowermost refrigerant pipe 8A of the cooler 8 is heated first, so that the ice blocks falling from the cooler 8 onto the partition plate 30 are smoothly melted. Will be able to.
Therefore, it is possible to prevent the through hole 31 as the drain water passage portion from being blocked by the ice block.

Since the partition plate 30 is located above the drain pan 16 and attached to the lower end of the cooler 8, the cool air discharged from the cooler blower 9 flows out below the cooler 8. It becomes possible to prevent the flow rate of the cool air passing through the cooler 8 from decreasing.
Therefore, the cool air discharged from the cooler blower 9 can effectively pass through the cooler 8, and the cooling effect of the cooling unit 1 can be improved.

Further, due to the presence of the partition plate 30 located above the drain pan 16, cold air cannot be directly blown to the drain pan 16 in which drain water is stored, and the rearward inclination angle of the drain pan 16 is ensured. It is possible to prevent the drain water from leaking to the outside due to the blowing of cold air. As a result, it is possible to prevent the floor surface of the cooling unit 1 installation location from being contaminated due to leakage of drain water to the outside, and the cooling unit 1 can be used comfortably.

12 and 13 are views showing a partition plate 34 as another embodiment. The partition plate 34 in such an embodiment is composed of a plurality of, in the embodiment, two partition members 35, 35 arranged in parallel in the longitudinal direction,
These partition members 35 are arranged at the lower end of the cooler 8 to form a drain water passage portion with an interval 36. The partition plate 34 also has a cutout 33 for fixing the clip 32, as in the above-described embodiment.
The clip 32 is attached to the lower end of the cooler 8.

As a result, by changing the number of partition members 35 used in addition to the above-mentioned embodiment, it becomes possible to cope with cooling units having a plurality of sizes, and the number of parts can be reduced. Will be able to.

In the partition plates 30 and 34, the edges of the through holes 31 and the outer edge of the partitioning member 35 which form the through holes 31 and the gap 36 as passages for drain water are gradually lowered downward. An inclined surface that is inclined may be formed. Thereby, the partition plate 30 or 34
The drain water received by the drain can be smoothly discharged to the drain pan 16.

Next, the covers 40 and 41 of the cooler 8 will be described with reference to FIGS. 14 to 16. 14 is a right side view of the cooler 8 in the present embodiment, FIG. 15 is a left side view of the cooler 8 in the present embodiment, and FIG. 16 is a partial vertical sectional front view of the cooling unit 1. The cooling unit 1 in the present embodiment is attached by a plurality of fixing bolts 43 that penetrate the ceiling surface 3A of the heat insulating box 3. The refrigerant pipe 8A constituting the cooler 8 arranged in the exterior case 7 of the cooling unit 1 is connected to the expansion valve 42 as a valve device. In the present embodiment, the expansion valve 42 is As shown in FIG. 14, it is located on the right side surface of the cooler 8.

A right cover 40 and a left cover 41 are provided upright from the upper end of the drain pan 16 to the upper side in the cold air flow direction of the drain pan 16, that is, on the left and right side surfaces of the cooler 8. . Drain pan 1
6 and the right cover 40 and the left cover 41,
It is assumed that a seal member 45 that seals these contact portions is attached. The right cover 40 and the left cover 41 are provided, for example, by a plate-shaped member made of a steel plate, and are provided between the cooler 8 and the exterior cover 7. The right cover 40, which is erected on the right side surface of the cooler 8 in which the expansion valve 42 is disposed, is located outside the expansion valve 42 as shown in FIG. 14, and its upper end is higher than the upper end of the expansion valve 42. Is also formed at a lower position, and a flange 40A bent at a substantially right angle to the cooler 8 side is formed at the upper end of the right cover 40.

On the other hand, the left cover 41 erected on the left side surface of the cooler 8 provided with the fixing bolts 43 penetrating the ceiling surface 3A of the heat insulating box 3 has the cooler 8 as shown in FIG.
Escape portion 44 for avoiding the fixing bolt 43 from above
And a flange 41A that is bent at a substantially right angle to the cooler 8 side is formed at the upper end of the left cover 41.

With the above structure, since the right cover 40 and the left cover 41 are erected above the drain pan 16 on the left and right sides of the drain pan 16 in the cold air circulation direction, drain water is discharged from the left and right sides of the drain pan 16 to the outside. It will be possible to avoid leakage. Particularly, the drain pan 16 is provided by the blower 9 for the cooler.
Even if the wind pressure is applied to the upper side and the drain water becomes higher than the height of the drain pan 16 due to the wind pressure, leakage of the drain water can be significantly suppressed by the left and right right covers 40 and 41. Like

Further, as described above, the upper end of the right cover 40 is formed to a position lower than the upper end of the expansion valve 42, and the upper end of the left cover 41 is formed with the escape portion 44 for avoiding the fixing bolt 43. Therefore, these right covers 4
0, the left cover 41, and the cooler 8 are open at the top. As a result, it is possible to prevent the generation of a jet of cool air due to the abnormal increase in the pressure of the cool air leaking from the left and right of the drain pan 16.

Further, since the upper end of the right cover 40 is formed to a position lower than the upper end of the expansion valve 42, the condition of the expansion valve 42 can be easily visually recognized with the right cover 40 attached. At the same time, the maintenance work can be easily performed without removing the right cover 40.

Since the upper end of the left cover 41 is formed with an escape portion 44 for avoiding the fixing bolt 43, the fixing bolt 43 can be easily attached and detached, and the entire left cover 41 can be attached. Can be formed relatively upward, and leakage of drain water can be further prevented.

The right cover 40 and the left cover 4 are also provided.
At the upper end of 1, there is a flange 40A bent toward the cooler 8 side.
And 41A are formed, the flanges 40A and 4A
With 1A, the drain water that has squeezed above the covers 40 and 41 can be interfered with, and this also makes it possible to avoid leakage of the drain water.

Next, the damper 6 and the wind direction plate 15 will be described with reference to FIGS. The outer case 7
As described above, the discharge opening 6A is formed in the front opening of the cooler 8, and the cooler front plate 55 that is located at the lower front side of the cooler 8 and constitutes the lower edge portion of the discharge opening 6A is provided. The cooler front plate 55 is formed to be slightly lower toward the rear. And, in front of this cooler 8,
The damper 6 as described above is provided. This damper 6
Is rotatably supported forward about an upper portion of the discharge port 6A formed in the front opening of the outer case 7,
It is suspended so as to block A.

An airflow direction plate 15 is provided between the cooler 8 and the damper 6 and below the discharge port 6A, that is, in front of the cooler 8. This wind direction plate 15
Is composed of, for example, a plate-shaped member made of a metal material,
It is provided longitudinally with respect to the longitudinal direction of the cooler 8.

The wind direction plate 15 has a first wind direction portion 51 which is gradually inclined upward from the lower part by forming a bent portion 53 at the center, and the first wind direction portion. A second wind direction portion 52 that is higher than the first wind direction portion 51 from the upper end of 51 and is inclined while standing upright is formed. Further, flanges 50 that stand upright at a substantially right angle are formed on the left and right ends of the first wind direction portion 51 and the second wind direction portion 52, respectively.

At the lower end of the wind direction plate 15, that is, at the lower end of the first wind direction portion 51, a vertical portion 54 bent in the vertical direction is formed. Therefore, the strength of the wind direction plate 15 itself can be improved, and even if the wind direction plate 15 is formed to extend in the longitudinal direction, the wind direction plate 15 is deformed by the influence of the discharge of the cool air. This can be avoided in advance, and a uniform flow of cold air can be realized.

It is assumed that the wind direction plate 15 is attached so that the lower end of the vertical portion 54 is close to the cooler front plate 55 with a space for water droplets to pass through. for that reason,
It is possible to prevent drain water generated by the defrosting operation of the cooler 8 from entering the damper 6 side under the influence of the cool air discharged from the cooler blower 9. Further, the cooler front plate 55 is formed slightly lower toward the rear, and the wind direction plate 15 and the cooler front plate 55 are also formed.
Since there is a gap that allows water droplets to pass between
Condensed water generated on the front portion of the cooler front plate 55 or the like can be smoothly guided to the drain pan 16 provided at the lower rear portion.

With the above-described structure, when the compressor and cooler blower 9 (not shown) are operated, the cool air sucked into the outer case 7 from the suction port 13 by the cooler blower 9 passes through the cooler 8. , And is discharged horizontally toward the wind direction plate 15. The cool air discharged horizontally to the wind direction plate 15 is gradually directed upward by the first wind direction portion 51 and the second wind direction portion 52 of the wind direction plate 15 and is discharged in the direction in which the damper 6 is pushed open.

As a result, the cool air discharged from the cooler blowers 9 is stabilized by the wind direction plate 15 while the damper 6 is effectively pushed open without increasing the number of the cooler blowers 9 installed. You will be able to maintain. Therefore, it is possible to prevent the damper 6 from moving up and down without producing uniform cooling air discharged from the cooler blower 9 to generate noise.

Further, since the wind direction plate 15 in this embodiment forms the bent portion 53 to form the first wind direction portion 51 and the second wind direction portion 52, the wind direction plate 15 can be formed at a low cost. Will be able to. Moreover, since the direction of the cool air is gradually directed upward by the first wind direction portion 51 and the second wind direction portion 52 having different inclination angles, the cool air discharged horizontally from the cooler blower 9 is gradually increased. It is possible to raise the temperature and reduce the loss of cold air. As a result, it is possible to efficiently maintain the open / closed state of the damper 6 and discharge the cool air.

A wind direction plate 56 as another embodiment of the wind direction plate 15 will be described with reference to FIG. In the drawings, the components having the same reference numerals as those described above have the same or similar effects. The wind direction plate 56 has substantially the same structure as that of the wind direction plate 15, and the bent portion 53 of the wind direction plate 56 has a through hole 57 through which cold air can pass.

As a result, the cool air discharged in the horizontal direction toward the wind direction plate 56 is gradually directed upward by the first wind direction portion 51 and the second wind direction portion 52 of the wind direction plate 56 as described above, and is damped. 6 is pushed and discharged in the opening direction. Here, in the wind direction plate 56 in this embodiment, since the through hole 57 through which the cool air can pass is formed in the bent portion 53, a part of the flow of the cool air directed upward is horizontally transferred from the through hole 57. The air can be discharged, and the wind pressure at the beginning of opening the damper 6 can be increased. This allows the damper 6 to move smoothly.
Will be able to open. Further, as in the above-described embodiment, since the vertical portion 54 is formed at the lower end portion of the wind direction plate 56, it becomes possible to improve the strength of the wind direction plate 56 itself, and the wind direction plate 56 moves in the longitudinal direction. Even when formed to extend, it is possible to prevent deformation of the wind direction plate and the through holes 57 due to the influence of discharge of cool air, and to realize a uniform flow of cool air. become.

In addition, both the wind direction plates 15 and 56 are formed with the bent portion 53 to direct the cool air upward in a stepwise manner. Therefore, the direction of cold air may be directed upward.

Furthermore, the wind direction plate 58 as another embodiment.
This will be described with reference to FIG. In the drawings, the components having the same reference numerals as those described above have the same or similar effects. The wind direction plate 58 in the present embodiment is composed of a plurality of, in the present embodiment, two flat plate-shaped guide plates 59, 60, and the guide plate 59 located on the upper side is attached in an upright direction. Then, the flat guide plates 59, 60 are separated by a space 61.
It has been established. Incidentally, these guide plates 59, 60
On both left and right ends of the flange 63
Are formed respectively.

A vertical portion 64 bent in the vertical direction is formed at the lower end of the guide plate 60 located on the lower side. Therefore, the strength of the guide plate 60 itself can be improved, and even when the guide plate 60 is formed to extend in the longitudinal direction, the guide plate 60 is deformed due to the influence of discharge of cool air. This can be avoided in advance, and a uniform flow of cold air can be realized.

Also in this vertical portion 64, the guide plate 60 is attached such that the lower end portion of the vertical portion 64 is close to the cooler front plate 55 with a gap allowing water drops to pass therethrough. . Therefore, it is possible to prevent the drain water generated by the defrosting operation of the cooler 8 from entering the damper 6 side under the influence of the cool air discharged from the cooler blower 9. In addition, the cooler front plate 55 is formed slightly lower toward the rear,
Since an interval through which water droplets can pass is formed between the wind direction plate 15 and the cooler front plate 55, the condensed water generated on the front part of the cooler front plate 55 or the like is smoothly transferred to the drain pan 16 provided at the lower rear part. You will be able to lead to.

As a result, the cold air discharged horizontally toward the wind direction plate 58 is gradually directed upward by the lower guide plate 60 and the upper guide plate 59 of the wind direction plate 58, and the damper 6 is discharged. Is ejected in the direction to open. Here, since the space 61 is formed between the guide plates 59 and 60 in this embodiment, a part of the flow of the cool air directed upward can be discharged from the space 61 in the horizontal direction. The wind pressure at the beginning of opening the damper 6 can be increased. As a result, the damper 6 can be smoothly opened.

Furthermore, the wind direction plate 65 as another embodiment will be described with reference to FIG. In the drawings, the components having the same reference numerals as those described above have the same or similar effects. The wind direction plate 65 in this embodiment is composed of a plurality of, in the present embodiment, two flat plate-shaped guide plates 66, 67, and in this embodiment as well, the guide plate 66 located on the upper side is attached in an upright direction. I shall. The guide plates 66 and 67 are provided with a space 68 therebetween.
It should be noted that flanges 69 are formed at the right and left ends of the guide plates 66 and 67 so as to stand upright at a substantially right angle. Further, it is assumed that the vertical portion 64 similar to the above is formed at the lower end portion of the guide plate 67 located on the lower side.

Also, the lower guide plate 6 in this embodiment.
It is assumed that the upper portion of 7 is formed to extend toward the damper 6 side from the lower portion of the guide plate 66 located on the upper side.

As a result, the cool air discharged in the horizontal direction toward the wind direction plate 65 is gradually directed upward by the lower guide plate 67 and the upper guide plate 66 of the wind direction plate 65 as described above, and the damper 6 Is ejected in the direction to open. Here, a space 68 is formed between the guide plates 66 and 67 in the present embodiment, and the upper portion of the lower guide plate 67 has a higher damper 6 than the lower portion of the upper guide plate 66.
Since it is formed to extend to the side, the cool air discharged along the guide plate 67 located on the lower side can be smoothly guided to the guide plates 66 and 6.
The air can be discharged into the space 68 between 7 and the wind pressure at the beginning of opening the damper 6 can be further increased, and the damper 6 can be opened smoothly.

Next, referring to FIGS. 22 to 25, the cooler blower 7 of the cooling unit 70 as another embodiment.
1 and 72 will be described. In the above embodiment, the number of cooler blowers 9 provided in the cooling unit 1 is one, but
In this embodiment, a cooling unit 70 having two cooler fans 71 and 72 will be described. In the drawings, the components having the same reference numerals as those described above have the same or similar effects.

In the cooling unit 70, the cooler 8 is arranged in the front part of the outer case 7 and the fan case 73 having the cool air suction port 74 formed on the lower surface is provided behind the cooler 8 and the fan case 73 is formed. As shown in FIG. 22, it is adjacent to the upper part of 73, and it is adjacent to the right and left of the cooler air blowers 71, 72.
Are juxtaposed.

Here, FIG. 23 is a structural explanatory view for explaining the structure above the fan case 73. This fan case 7
At the left and right ends of 3, the tube plate of the cooler 8, that is, the cooler 8
The left and right tube plate reinforcing members 76 and 77, which are connected to plate-like members (not shown) that hold both side portions of the refrigerant pipe 8A, are erected. In addition, between the tube sheet reinforcing members 76 and 77, and between the cooler blowers 71 and 72, a partition tube sheet reinforcing member 78 for partitioning the cooler blower 71 side and the cooler blower 72 side is provided. It is erected.

Then, these tube sheet reinforcing members 76, 77, 7
In the upper part of 8, a blower mounting plate 79 is laid across the left and right tube plate reinforcing members 76 and 77. It is assumed that a notch 80 larger than the outer peripheral dimension of the blower mounting plate 79 is formed at the upper end of the partition tube plate reinforcing member 78 where the blower mounting plate 79 is located.

Here, the blower mounting plate 79 is a plate-shaped member made of, for example, a steel plate material, and the position of the blower mounting plate 79 corresponding to the position where the cooler blowers 71 and 72 are mounted is set. A plurality of screw holes 82 for avoiding a plurality of mounting screws 81 described later are formed, and a plurality of fixing holes 83 for mounting the blower are also formed.

On the other hand, the cooler blowers 71, 72 are
Equipped with blower motors 71A and 72A at the top,
A radiator plate 84 made of a material having higher thermal conductivity than the blower mounting plate 79 is attached to the upper surfaces of the blower motors 71A and 72A with the attachment screws 81. Further, the fixing holes 83 are provided at four corners of the heat dissipation plate 84, for example.
Is formed with a screw hole 85.

With the above structure, the cooler blowers 71 and 72 have the radiator plate 84 attached thereto, and then the screw hole 85 of the radiator plate 84 and the fixing hole 83 of the blower mounting plate 79 are installed from below the blower mounting plate 79. Match and fix with screws 86. At this time, the mounting screw 81 for fixing the heat radiating plate 84 and the cooler blower 71 or 72 to the blower mounting plate 79
It is to be avoided in the screw hole 82 formed in.

As a result, the blowers 71 and 72 for the cooler are provided.
Is the left and right tube sheet reinforcements 7 connected to the tube sheet of the cooler 8.
6, 77 and the blower attachment plate 79 attached across the tube plate reinforcing members 76, 77, the strength of the attachment structure of the cooler blowers 71 and 72 can be improved, and the cooler can be stably used. The blowers 71 and 72 can be fixed. As a result, it is possible to significantly suppress vibration noise and the like generated by the operation of the cooler blowers 71 and 72.

Further, since the cooler blowers 71 and 72 are attached to the cooler mounting plate 79 via the heat radiating plate 84, the cooler blower 71 can be easily attached to and detached from the cooler mounting plate 79. And 72 can be attached and detached, and the maintenance workability of the cooler blowers 71 and 72 can be improved.

Further, the heat dissipation plate 84 is the blower mounting plate 7
Since it is composed of a material with higher thermal conductivity than 9,
The temperature rise of the cooler blowers 71 and 72 can be reduced, and the durability of the blowers 71 and 72 themselves can be improved.

In the cooling unit 70 of the present invention, the tube sheet reinforcing member 78 for partitioning is provided between the cooler fans 71 and 72.
And a cutout 80 is formed at the upper end of the tube sheet reinforcement 78. An unillustrated transmission box or the like is arranged between the left and right tube sheet reinforcements 76 and the partition tube sheet reinforcement 78, and the sizes of the spaces on the cooler blowers 71 and 72 are different. Even if
Since the notch 80 is formed in the tube plate reinforcing plate 78, the pressure in the space partitioned by the left and right tube plate reinforcing members 76 and 77 and the partition tube plate reinforcing member 78 can be kept uniform. Like

As a result, the blowers 71 and 72 for the cooler are provided.
The cool air discharged from the cooler 8 can be rectified.
The cold air passing through can be made uniform.

[0083]

As described above in detail, according to the present invention, there is provided a cooling unit provided with a cooler in the outer case and a blower for discharging cool air that has exchanged heat with the cooler from the discharge port. The outer case includes a main body and side plates that close both side surfaces of the main body, and the side plate includes a lateral engaging claw having an upward engaging portion at its tip, and the main body is
The engaging claw is provided with an outwardly opening insertion hole into which the engaging claw is inserted and an engaging hole formed in the inner part of the insertion hole and having an upper surface opening with which the engaging part engages. The side plate can be easily fixed to the main body by simply inserting the side plate into the main body and engaging the engaging portion of the engaging claw with the engaging hole formed in the upper surface of the main body.

According to the cooling unit of the invention of claim 2,
In addition to the above invention, the engaging claw of the side plate becomes lower toward the tip, the upper end of the engaging portion is flush with the upper surface of the side plate or lower, and the outer edge of the engaging hole of the main body is the main body. Since the height is lower than the upper surface, the engagement portion of the engagement claw and the engagement hole can be reliably engaged, and the engagement portion of the side plate is Since it does not protrude from the engagement hole of the main body, the appearance can be improved.

According to the cooling unit of the invention of claim 3,
In addition to each of the above inventions, a frame cover is provided that closes the lower surface of the main body and is bent at a plurality of points. Since the side plate has a protrusion that enters the bent portion of the frame cover, the side plate can be reliably engaged with the frame cover, and the frame cover is not formed with the flange. It is possible to avoid the inconvenience that cold air leaks from the inside.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a cooling storage to which the present invention is applied.

FIG. 2 is a perspective view of a cooling unit to which the present invention is applied.

FIG. 3 is a vertical sectional side view of the cooling unit.

FIG. 4 is a transparent front view of a cooling unit.

FIG. 5 is a perspective view seen from the inside of the outer case.

FIG. 6 is a perspective view of the exterior case with the side plate disassembled.

FIG. 7 is a partial cross-sectional view of the upper part of the outer case.

FIG. 8 is a perspective view of a lower corner portion of the outer case.

FIG. 9 is a side sectional view of the cooling unit.

FIG. 10 is a partial side sectional view of the cooling unit.

FIG. 11 is a perspective view of a partition plate.

FIG. 12 is a partial side sectional view of a cooling unit as another embodiment.

FIG. 13 is a perspective view of a partition plate as another embodiment.

FIG. 14 is a right side view of the cooler.

FIG. 15 is a left side view of the cooler.

FIG. 16 is a partial vertical sectional front view of the cooling unit.

FIG. 17 is a partial side sectional view of the cooling unit.

FIG. 18 is a partially enlarged view of FIG.

FIG. 19 is a partially enlarged side sectional view of a cooling unit as another embodiment.

FIG. 20 is a partially enlarged side sectional view of a cooling unit as another embodiment.

FIG. 21 is a partially enlarged side sectional view of a cooling unit as another embodiment.

FIG. 22 is a transparent front view of a cooling unit as another embodiment.

FIG. 23 is a structural explanatory diagram above the fan case in FIG. 22.

FIG. 24 is a structural explanatory view of a state in which the blower mounting plate of FIG. 23 is cut away.

FIG. 25 is a side sectional view illustrating a mounting structure of a blower for a cooler.

[Explanation of symbols]

R cooling storage 1 cooling unit 6 damper 7 Exterior case 8 cooler 8A refrigerant pipe 9 Cooling blower 11 frame cover 11A, 11B bending part 11C rear part 11D front part 12 side plates 13 Cold air intake 15 Wind direction plate 16 drain pan

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kenichi Mochida             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Akihiko Chiba             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F term (reference) 3L045 AA06 AA07 BA01 CA02 EA01                       PA04

Claims (3)

[Claims] 1. A cooling unit comprising a cooler in an outer case and a blower for discharging cool air that has exchanged heat with the cooler from a discharge port, wherein the outer case has a main body and a main body of the main body. A side plate that closes both side surfaces is provided, the side plate is provided with a sideways engagement claw having an upward engagement portion at a tip, and the body is an insertion opening to the outside where the engagement claw is inserted. A cooling unit, comprising: a hole; and an engagement hole formed in a deep portion of the insertion hole and having an upper surface opening with which the engagement portion engages. 2. The engaging claw of the side plate becomes lower toward the tip, the upper end of the engaging portion is flush with the upper surface of the side plate or lower, and the outer edge of the engaging hole of the main body. The cooling unit according to claim 1, wherein the portion is lower than the upper surface of the main body. 3. A frame cover, which is formed by closing a lower surface of the main body and is bent at a plurality of points, the frame cover being located at the left and right edges and standingly formed at a part other than the part corresponding to the bent part. The cooling unit according to claim 1 or 2, further comprising a flange, and the side plate has a protrusion that extends onto the bent portion of the frame cover.