JP2002333261A - Drainage system for cooler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage system for a cooler, which can smoothly drain the drain water reserved in a drain pan to the outside through a drain pipe. SOLUTION: This drainage system is equipped with an insertion hole 20 for a drain pipe 17 made at the sidewall 16B of the drain pan 16, and a cut 21 cut continuously in a bottom wall 16B from the bottom of the insertion hole 20, and the cut 21 is roughly rectangular, and the insertion hole 20 is constituted of a circular arc which begins from both ends on the sidewall 16B side of the cut 21, and it is roughly circular, having an inside diameter a little larger than the outside diameter of the drain pipe 17, and in the condition that the drain pipe 17 is inserted into the insertion hole 20, the end face of the drain pipe 17 abuts on the end face of the bottom wall 16A at the deep side of the cut 21, and the bottom walls 16A on both sides of the cut 21 abut on the sidewalls of the drain pipe 17, and the end face 17A of the inner face of the drain pipe 17 is positioned on or under the level of the topside of the bottom wall 16A of the drain pan 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain drain device for a cooler comprising a drain pan for receiving drain water from a cooler, and a cylindrical drain pipe connected to a side wall of the drain pan.

[0002]

2. Description of the Related Art Conventionally, a refrigerator to which a drain drainage device of this type is applied is, for example, a prefabricated low-temperature refrigerator (freezing / freezing).
Refrigerators) and commercial cooling storages, in which a cooler is arranged on the top wall of the storage, and a cooler is forcibly convected into the storage from the ceiling by a blower. A drain pan is provided below the cooler to receive drainage such as dew or drain water from the cooler, and the drainage received in the drain pan is discharged to the outside of the refrigerator by a water distribution pipe.

Here, a conventional drain pan 100 and a conventional drain pipe 101 will be described with reference to FIGS. 10 and 11. FIG.
FIG. 10 is a vertical sectional side view when the drain pipe 101 is attached to the drain pan 100, and FIG. 11 is a perspective view of the drain pan 100. The drain pan 100 includes a bottom wall 102 and a side wall 103 formed by bending a peripheral edge of the bottom wall 102 upward at a substantially right angle. For example, the side wall 103 forming the rear surface of the drain pan 100 has
A drain pipe insertion hole 104 having a dimension slightly larger than the outer diameter of the drain pipe 101 as shown in FIG.

Then, the end of the drain pipe 101 is inserted into the insertion hole 104 by a predetermined size, and the drain pipe 10 is inserted.
1 is fixed by a jig or the like, and the drain pipe 101 is fixed to the drain pan 100 by welding or the like.
A drain route for the drain water stored at 00 was secured.

[0005]

However, since the insertion hole 104 formed in the conventional drain pan 100 has been formed by forming a circular hole below the side wall 103 of the drain pan 100, the drain hole is formed in the insertion hole 104. When the pipe 101 is inserted, a step is generated between the lower end of the drain pipe 101 located in the drain pan 100 and the bottom wall of the drain pan 100, and there is a problem that drain water remains on the drain pan 100.

Therefore, the drain water remaining on the drain pan 100 is cooled by the cooler and freezes, and the freeze grows, so that the drain path to the drain pipe 101 is blocked and the drain water is drained. There is a problem that can not be. Further, there is a problem in that the drain water freezes, and an excessive load is applied to the drain pan 100, and the drain pan 100 is deformed or damaged, and the drain water leaks from the drain pan 100.

Further, since the conventional insertion hole 104 is merely a circular opening, the position of the inserted drain pipe 101 cannot be fixed, and the drain pipe 101 itself rotates and is fixed in an oblique state. However, there is a problem that the drain pipe 101 cannot be properly attached.

Accordingly, the present invention has been made to solve the conventional technical problem, and is a cooling device capable of smoothly draining drain water stored on a drain pan to the outside via a drain pipe. It is an object of the present invention to provide a drainage device for a vessel.

[0009]

A drain device for a cooler according to the present invention has a bottom wall and a side wall, a drain pan for receiving drain water from the cooler, and a cylindrical shape connected to the side wall of the drain pan. Comprising a drain pipe, an insertion hole formed in a side wall of a drain pan, into which the drain pipe is inserted, and a cutout portion cut continuously from a lower portion of the insertion hole to a bottom wall. The notch has a substantially rectangular shape, and the insertion hole is formed of a circular arc starting from both sides of the side wall end of the notch, and has a substantially circular shape having an inner diameter slightly larger than the outer diameter of the drain pipe, With the drain pipe inserted into the insertion hole, the end face of the drain pipe abuts against the bottom wall end face at the back of the notch, and the bottom walls on both sides of the notch abut the side faces of the drain pipe, and The lower end of the inner surface Characterized in that located below the height of the bottom wall upper surface of Npan.

According to the present invention, a drain of a cooler includes a drain pan having a bottom wall and a side wall and receiving drain water from the cooler, and a cylindrical drain pipe connected to the side wall of the drain pan. In the drainage device, an insertion hole formed in the side wall of the drain pan and into which the drain pipe is inserted, and a cutout portion cut continuously from the lower portion of the insertion hole to the bottom wall, the cutout portion has a substantially rectangular shape. At the same time, the insertion hole is formed of a circular arc starting from both ends of the side wall side of the notch, has a substantially circular shape having an inner diameter slightly larger than the outer diameter of the drain pipe, and the drain pipe is inserted into the insertion hole. In this state, the end face of the drain pipe abuts against the bottom wall end face behind the notch, the bottom walls on both sides of the notch abut the side faces of the drain pipe, and the lower end of the inner surface of the drain pipe is the bottom wall of the drain pan. Up Since located below the height, the bottom wall upper surface of the drain pan insertion hole is formed so that it is possible to avoid the occurrence of a step due to the lower than the inner surface lower end of the drain pipe.

Thus, the drain water is smoothly drained to the outside via the drain pipe without leaving drain water on the drain pan due to a step formed between the bottom wall of the drain pan located below the insertion hole and the lower end of the drain pipe. Will be able to

Therefore, it is possible to prevent the drain water stored between the bottom surface of the drain pan located below the insertion hole and the lower end of the drain pipe from freezing and deforming or damaging the drain pan.

Further, the end of the drain pipe inserted into the insertion hole is sandwiched between the bottom wall end face at the back of the notch and the bottom wall on both sides of the notch, so that the drain pipe can be easily fixed. Therefore, it is possible to easily regulate and position the drain pipe in the vertical or horizontal direction without particularly deforming the drain pipe, thereby improving the workability of the drain pipe mounting operation. Become like

According to a second aspect of the present invention, in addition to the first aspect of the present invention, the drain lower device has a drain pipe inserted into an insertion hole, and a lower end of an inner surface of the drain pipe is connected to a bottom wall of a drain pan. It is characterized by being located below the height of the upper surface and higher than the lower surface of the bottom wall.

According to the second aspect of the present invention, in addition to the first aspect of the present invention, in a state where the drain pipe is inserted into the insertion hole,
Since the lower end of the inner surface of the drain pipe is located at a position equal to or lower than the height of the upper surface of the bottom wall of the drain pan and higher than the lower surface of the bottom wall, the upper surface of the bottom wall of the drain pan where the insertion hole is formed is lower than the lower end of the inner surface of the drain pipe. This makes it possible to avoid the occurrence of a step.

Thus, the drain water stored in the bottom wall of the drain pan can be drained to the outside through the upper surface of the bottom wall of the drain pan and the inner surface of the drain pipe without leaking from the drain pan or the drain pipe. Become.

According to a third aspect of the present invention, in addition to the first aspect of the present invention, the drain drain device for a cooler further includes a projection formed in a side wall direction from an end face of the bottom wall deep in the notch. With the drain pipe inserted, the protrusion enters the drain pipe and abuts on the inner surface.

According to the third aspect of the present invention, in addition to the first aspect of the present invention, a projection protruding in the side wall direction from the bottom wall end face deep in the notch is formed, and the drain pipe is inserted into the insertion hole. In this state, the protrusion enters the drain pipe and abuts on the inner surface, so the end of the drain pipe inserted into the insertion hole is
The drain pipe is held by the projection formed on the end face of the notch, and the drain pipe can be easily fixed. Accordingly, it is possible to easily regulate the rotation of the drain pipe without particularly deforming the drain pipe, and it is possible to improve the workability of attaching the drain pipe.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 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, and FIG. 3 is a vertical side view of the cooling unit 1.

The cooling unit 1 to which the present invention is applied is installed in a cooling storage R such as a prefabricated refrigerator / refrigerator. The cooling storage R is constituted by a heat insulating box 3, and a storage room 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 connection portion with an adjacent panel.

In addition, the front wall of the heat insulating box 3 has an article entrance through which articles such as stored foods can be taken in and out, and one side of the article entrance is pivotally supported so as to be openable and closable. A heat-insulating door 5 for sealing is provided.

The cooling unit 1 includes, for example, a heat insulating box 3
And a compressor, a condenser, and the like, which are disposed in a separately-installed outdoor unit (not shown) in an exterior case 7 having a damper 6 formed on the front side of the storage room 2. It has a cooler 8 constituting a cooling device and a well-known refrigeration cycle, and a cooling blower 9 for discharging cool air to the damper 6 side.

The outer case 7 is formed by bending a plate-shaped member such as aluminum to form a main body 10 having openings on both sides and a lower surface, and a frame cover for opening and closing the lower opening of the main body 10 so as to be openable and closable. 11 and side plates 12 and 12 respectively closing both side surfaces.
The frame cover 11 can be opened downward by rotating about the rear end of the lower surface opening of the main body 10, and a cool air inlet 13 is formed at the rear.

The upper ends of the side plates 12, 12 are formed with a flange 12A bent inward at a substantially right angle, and the cooling unit 1 is fixed to the top surface of the storage room 2 on the flange 12A. A holding portion 12B for holding a screw member (not shown) is formed. In the figure,
Reference numeral 14 denotes a fan case for holding the blower 9 for the cooler, and reference numeral 15 denotes a wind direction plate for adjusting the direction of cool air discharged from the damper 6. In addition, cooler 8
A drain pan 16 which will be described later in detail is attached to the lower part of FIG. Reference numeral 19 denotes a drain heater for promoting the evaporation of the drain water stored on the drain pan 16.

With the above configuration, the cooler blower 9
Is operated, the air that has flowed into the outer case 7 from the cool air suction port 13 is cooled by the cooler 8, discharged from the damper 6 into the storage room 2 by the cooler blower 9, and Is cooled to a predetermined temperature. The cool air circulated in the storage room 2 returns to the exterior case 7 from the cool air inlet 13 of the cooling unit 1 again.

Next, a drain drain device for a cooler according to the present invention will be described with reference to FIGS. FIG. 4 is a longitudinal sectional side view showing an attached state of the drain pan 16 and the drain pipe 17 of the present invention, FIG. 5 is a perspective view of the drain pan 16, and FIG. 6 is a sectional view of FIG. The drain drainage device of the present invention includes the drain pan 16, a drain pipe 17 formed in a cylindrical shape, and a drain hose 18. The drain pan 16 is a plate-like member installed below the cooler 8 provided in the cooling unit 1 as described above, and is configured to bend the bottom wall 16A and the outer edge of the bottom wall 16A upward substantially at right angles. , And is open upward.

An insertion hole 20 for inserting the drain pipe 17 is formed in a side wall 16B forming a rear wall of the drain pan 16, and a bottom wall 16A of the drain pan 16 is connected from a lower portion of the insertion hole 20 to the bottom wall 16A. A cut-out portion 21 is formed. The notch 21 is formed in a substantially rectangular shape, and the insertion hole 20 is formed of an arc starting from both sides of the end on the side wall 16B side where the notch 21 is formed. The insertion hole 20 is formed in a substantially circular shape having an inner diameter slightly larger than the outer diameter of the drain pipe 17.

With the above configuration, the drain pipe 17 is inserted into the insertion hole 20 of the drain pan 16. At this time, the end of the drain pipe 17 is directed to the insertion hole 20, and the end face of the drain pipe 17 is connected to the bottom wall 16 in the notch 21 of the drain pan 16.
A contact with the end face A and the bottom wall 16 on both sides of the notch 21
A is brought into contact with the side surface of the drain pipe 17.

At this time, the insertion hole 20 is inserted into the drain pipe 17 with the drain pipe 17 inserted as shown in FIG.
Of the bottom surface of the drain pan 16 is not higher than the height of the upper surface of the bottom wall 16A of the drain pan 16. for that reason,
When the drain pipe 17 is inserted into the drain pan 16, the flow direction of the drain water, that is, the bottom wall 16
It is possible to avoid the occurrence of a step that increases from A to the drain pipe 17.

As a result, the cooling pan 8 is connected to the drain pan 16
Drain water dripped into the drain pan bottom wall 16A easily
From the drain pan 17 to the drain pan bottom wall 1
The drain water can be smoothly drained to the outside without leaving the drain water on 6A.

Therefore, it is possible to prevent the drain water stored between the drain pan bottom wall 16A and the drain pipe 17 from freezing and the drain pan 16 from being deformed or damaged.

Further, the end of the drain pipe 17 inserted into the insertion hole 20 as described above is sandwiched between the end face of the bottom wall 16A at the back of the notch 21 and the bottom wall 16A on both sides of the notch 21 so that the drain pipe 16 can be easily inserted. Can be fixed.
For this reason, the vertical and horizontal loosening of the drain pipe 17 can be restricted and the positioning of the drain pipe 17 can be facilitated without particularly deforming the drain pipe 17, and the drain pipe 17 can be easily positioned.
The workability of the mounting work can be improved.

After the drain pipe 17 is attached, the gap formed between the side surface of the drain pipe 17 and the end face of the insertion hole 20 and the notch 21 of the drain pan 16 is completely closed by welding or the like.

The insertion hole 20 formed in the side wall 16B of the drain pan 16 is such that when the drain pipe 17 is inserted, the lower end 17A of the inner surface of the drain pipe 17 is lower than the height of the upper surface of the bottom wall 16A of the drain pan 16. In addition, it may be configured to be higher than the lower surface of the bottom wall 16A.

Accordingly, in addition to the above, no gap is formed between the lower end 17A of the inner diameter of the drain pipe 17 and the lower end of the bottom wall 16A behind the notch 21, so that the bottom wall 1 of the drain pan 16
The drain water stored in the drain pan 6A can be drained to the outside along the upper surface of the bottom wall 16A of the drain pan 16 and the inner surface of the drain pipe 17 without leaking from the drain pan 16 or the drain pipe 17.

Next, a drain drain device for a cooler as another embodiment will be described with reference to FIGS. FIG. 7 is a longitudinal sectional side view showing a mounted state of the drain pan 22 and the drain pipe 17 as another embodiment, FIG. 8 is a perspective view of the drain pan 22, and FIG. 9 is a sectional view of FIG.

The drain pan 22 as another embodiment is a plate-like member installed below the cooler 8 disposed in the cooling unit 1 as described above, similarly to the above-described embodiment.
A and a side wall 22B formed by bending the outer edge of the bottom wall 22A upward at substantially right angles, and is open upward.

An insertion hole 23 for inserting the drain pipe 17 is formed in a side wall 22B which forms a rear wall of the drain pan 22, and a bottom wall 22A of the drain pan 22 is continuous from a lower portion of the insertion hole 23. A notch 24 is formed. The notch 24 is formed in a substantially rectangular shape, and has a bottom wall 22 </ b> A at the back of the notch 24.
A projection 25 is formed from the end face protruding in the direction of the side wall 22B. The insertion hole 23 is formed of a circular arc starting from both sides of the end on the side wall 22B side where the notch 24 is formed. The insertion hole 23 is formed in a substantially circular shape having an inner diameter slightly larger than the outer diameter of the drain pipe 17 as in the above embodiment.

With the above configuration, the drain pipe 17 is inserted into the insertion hole 23 of the drain pan 22. At this time, the end of the drain pipe 22 is addressed to the insertion hole 23 and the drain pan 2
The projection 25 of the second notch 24 enters the drain pipe 17, and the lower end corner of the projection 25 contacts the inner surface of the drain pipe 17.

At this time, when the drain pipe 17 is inserted into the drain pan 22,
In the bottom wall 22A, it is possible to avoid the occurrence of a step that increases in the flow direction of the drain water, that is, from the drain pan bottom wall 22A toward the drain pipe 17.

As a result, the cooler 8 is connected to the drain pan 22
The drain water dripped in the drain pan bottom wall 22A easily
From the drain pan 17 to the drain pan bottom wall 2
The drain water can be smoothly drained to the outside without leaving the drain water on 2A.

Therefore, it is possible to prevent the drain water stored between the drain pan bottom wall 22A and the drain pipe 17 from freezing, and the drain pan 22 from being deformed or damaged.

Further, the end of the drain pipe 17 inserted into the insertion hole 23 is sandwiched by the projection 25 formed on the end face of the notch 24 so that the drain pipe 17 can be easily fixed. Therefore, it is possible to easily regulate the rotation of the drain pipe 17 without particularly deforming the drain pipe 17, and the drain pipe 17
The workability of the mounting work can be improved.

After the drain pipe 17 is attached, the gap formed between the side surface of the drain pipe 17 and the end face of the insertion hole 23 and the notch 24 of the drain pan 22 is completely closed by welding or the like.

[0045]

As described above in detail, according to the present invention, a drain pan having a bottom wall and a side wall and receiving drain water from a cooler, and a cylindrical drain pipe connected to the side wall of the drain pan are provided. A drain drain device for a cooler comprising: an insertion hole formed in a side wall of a drain pan, into which a drain pipe is inserted; and a cutout portion cut continuously from a lower portion of the insertion hole to a bottom wall, The notch has a substantially rectangular shape, and the insertion hole is formed of a circular arc starting from both sides of the end portion on the side wall side of the notch, and has a substantially circular shape having an inner diameter slightly larger than the outer diameter of the drain pipe. With the drain pipe inserted into the hole, the end face of the drain pipe abuts against the bottom wall end face behind the notch, the bottom walls on both sides of the notch abut against the side surface of the drain pipe, and the inner surface of the drain pipe. The bottom is Since located below the height of the bottom wall upper surface of Renpan, the bottom wall upper surface of the drain pan insertion hole is formed so that it is possible to avoid the occurrence of a step due to the lower than the inner surface lower end of the drain pipe.

Thus, the drain water is smoothly drained to the outside via the drain pipe without leaving drain water on the drain pan due to a step formed between the bottom wall of the drain pan located below the insertion hole and the lower end of the drain pipe. Will be able to

Therefore, it is possible to prevent the drain water stored between the bottom surface of the drain pan located below the insertion hole and the lower end of the drain pipe from freezing and deforming or damaging the drain pan.

The end of the drain pipe inserted into the insertion hole is sandwiched between the bottom wall end face at the back of the notch and the bottom wall on both sides of the notch, so that the drain pipe can be easily fixed. Therefore, it is possible to easily regulate and position the drain pipe in the vertical or horizontal direction without particularly deforming the drain pipe, thereby improving the workability of the drain pipe mounting operation. Become like

According to the second aspect of the present invention, in addition to the first aspect of the present invention, in a state where the drain pipe is inserted into the insertion hole,
Since the lower end of the inner surface of the drain pipe is located at a position equal to or lower than the height of the upper surface of the bottom wall of the drain pan and higher than the lower surface of the bottom wall, the upper surface of the bottom wall of the drain pan where the insertion hole is formed is lower than the lower end of the inner surface of the drain pipe. This makes it possible to avoid the occurrence of a step.

Thus, the drain water stored in the bottom wall of the drain pan can be drained to the outside through the upper surface of the bottom wall of the drain pan and the inner surface of the drain pipe without leaking from the drain pan or the drain pipe. Become.

According to the third aspect of the present invention, in addition to the first aspect of the present invention, a projection is formed which projects in the side wall direction from the bottom wall end face deep in the notch, and the drain pipe is inserted into the insertion hole. In this state, the projection enters the drain pipe and abuts on the inner surface, so the end of the drain pipe inserted into the insertion hole is
The drain pipe is held by the projection formed on the end face of the notch, and the drain pipe can be easily fixed. Accordingly, it is possible to easily regulate the rotation of the drain pipe without particularly deforming the drain pipe, and it is possible to improve the workability of attaching the drain pipe.

[Brief description of the 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 a cooling unit.

FIG. 4 is a vertical sectional side view showing a state where a drain pan and a drain pipe of the present invention are attached.

FIG. 5 is a perspective view of a drain pan.

FIG. 6 is a sectional view of FIG. 4;

FIG. 7 is a longitudinal sectional side view showing a mounting state of a drain pan and a drain pipe as another embodiment.

FIG. 8 is a perspective view of a drain pan.

FIG. 9 is a sectional view of FIG. 7;

FIG. 10 is a vertical sectional side view showing a state of attachment of a conventional drain pan and a drain pipe.

FIG. 11 is a perspective view of a conventional drain pan.

[Explanation of symbols]

 R Cooling storage 1 Cooling unit 8 Cooler 16, 22 Drain pan 16A, 22A Bottom wall 16B, 22B Side wall 17 Drain pipe 20, 23 Insertion hole 21, 24 Notch 25 Projection

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takeshi Nagao 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L048 AA01 AA06 AA09 BA01 BC01 CA02 CB03 CB05 CB08 DA02 FA00 FA01 GA02

Claims (3)

[Claims] 1. A drain drain device for a cooler, comprising: a drain pan having a bottom wall and a side wall and receiving drain water from a cooler; and a cylindrical drain pipe connected to a side wall of the drain pan. An insertion hole formed in a side wall of the drain pan, into which the drain pipe is inserted, and a notch continuously cut into the bottom wall from a lower portion of the insertion hole, the notch having a substantially rectangular shape In addition, the insertion hole is formed of a circular arc starting from both sides of the end portion on the side wall side of the notch, and has a substantially circular shape having an inner diameter slightly larger than the outer diameter of the drain pipe. With the pipe inserted, the end face of the drain pipe abuts against the bottom wall end face behind the notch, and the bottom wall on both sides of the notch abuts the side face of the drain pipe and the drain pipe. A drain lowering device for a cooler, wherein a lower end of an inner surface of the pump is positioned below a height of an upper surface of a bottom wall of the drain pan. 2. In the state where the drain pipe is inserted into the insertion hole, the lower end of the inner surface of the drain pipe is located at a position lower than the height of the upper surface of the bottom wall of the drain pan and higher than the lower surface of the bottom wall. The drain drainage device for a cooler according to claim 1, wherein: 3. A projection protruding from the bottom wall end surface at the back of the notch toward the side wall, and the projection is inserted into the drain pipe in a state where the drain pipe is inserted into the insertion hole. 2. A drain drainage device for a cooler according to claim 1, wherein the drainage device enters the inner surface and abuts the inner surface.