JP3059113B2 - Prefab refrigerator drainage system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage device such as a prefabricated refrigerator constructed by assembling a plurality of panels, and more particularly, to assembling a refrigerator body through each panel, and at the same time, substantially forming a drainage structure. The present invention relates to a drainage device for a prefabricated refrigerator that does not require a space and can reliably drain defrost water generated from a cooling unit even when installed in close contact with a wall of a room.

[0002]

2. Description of the Related Art Conventionally, in a prefabricated refrigerator or the like, a pipe for draining defrost water generated from a cooling unit is provided.
After assembling the prefabricated refrigerator, plumbing is performed and installed. Therefore, when piping is carried out along the wall in the warehouse, the width of the shelf in the warehouse becomes narrow, and the space in which goods can be arranged is reduced. Also, if piping along the outside wall behind the refrigerator, it is necessary to install the refrigerator away from the room wall,
There is a problem that the installation space becomes large. Furthermore, when piping work is performed after assembly, there is a problem that piping mistakes and the like also occur. Therefore, in order to solve these problems, a drainage device in which a water distribution pipe is embedded in a rear panel of a refrigerator has been proposed. For example, 60-19
As disclosed in Japanese Patent No. 1878, a drainage guide is buried in a heat insulating material of a rear panel, a drainage bush communicating from the inner wall of the rear panel to the drainage guide is provided, and water is provided under a drainage port of the drainage guide. A drain tray for collecting and draining water when a predetermined amount or more is provided, and a structure in which defrost water collected in a cooling duct is guided to the drain bush and stored in the drain tray via a drain guide; As shown in Japanese Patent No. 31276, a drain pipe is provided from the heat insulating material of the rear panel to the heat insulating material of the side panel, and the drain port of the drain pipe is provided near the heat insulating door of the side panel, and the drain is provided thereunder. There is a well-known structure that installs a tray, guides the defrost water collected in the cooling duct to the drain pipe in the rear panel, and stores it in the drain tray via the drain pipe. That.

[0003]

However, the refrigerator described in Japanese Utility Model Application Laid-Open No. 60-191878 is not basically a prefabricated type, and the drainage device is separately assembled. The device has a structure in which the drainage guide and the drainage bush are fitted at the end face of the drainage bush, so that the foaming pressure at the time of filling the foam material causes the drainage bush to come off from the drainage guide, etc. Since it is necessary to reduce the tolerance of fitting the drainage guide with the width of the insertion portion, there is a problem that alignment during assembly is difficult. Also, the refrigerator described in Japanese Utility Model Laid-Open No. 3-31276 is not a prefabricated type similarly to the above, and a drainage device is separately assembled, and the drainage device is provided with a drainage pipe in a rear panel and a side panel at the time of assembling the refrigerator. It is difficult to match the joints of the drainage pipes inside, and the side panel side where the drainage holes are provided needs a space to place the drainage tray on the lower side, so it needs to be slightly separated from the room wall. There is a problem that must be installed.

Accordingly, the present invention has been made to solve the above-mentioned problems, and the defrost water generated in the cooling unit is guided downward by a drain pipe provided on a rear panel, and the base panel A toy member for draining defrost water from the drain pipe is fixed to the lower surface of the base panel, and the base panel and rear
When the panel is fastened, the lower end of the drain pipe and one end of the toy member
The prefabricated refrigerator can have a structure in which the drain section is formed at the same time as the assembly of the refrigerator while easily aligning the lower end face of the drainage pipe with the toy member when assembling the prefabricated refrigerator. The purpose of the present invention is to provide a drainage device.

[0005]

To SUMMARY OF THE INVENTION To achieve the above object, the drainage device of prefabricated refrigerator according to claim 1, a cooling unit arranged in the roof panel, distribution to the rear panel
A drain pipe for guiding the defrost water generated in the cooling unit downward, and a drain pipe fixed to the lower surface of the base panel,
When the panel is fastened to the rear panel,
A toy member whose one end is opposed to the toy member .

[0006] In the prefabricated refrigerator drainage device having such features, the rear panel and the base panel are fastened to each other with a coach screw so that the rear panel is disposed on the rear panel.
The lower end surface of the drain pipe thus formed and the one end of the toy member fixed to the lower surface of the base panel face each other. This allows
Assembly at the same time the drainage structure of prefabricated refrigerator is formed, leads to defrost water generated from the cooling unit to drain, electrically rather drainage structure is formed on the toy member from the drain pipe. Therefore, it is not necessary to perform piping work for drainage of defrosted water after the assembly of the prefabricated refrigerator or to connect the piping, and it is possible to eliminate a piping mistake due to the piping work and to improve the quality. The production cost of the prefabricated refrigerator can be reduced.

At this time, a drain pipe is buried in the rear panel.
If possible, maximize the product placement space in the warehouse.
And become possible.

As a result, the installation space can be saved, the assembling efficiency can be improved, and the manufacturing cost of the prefabricated refrigerator can be reduced.

Further, a drainage device for a prefabricated refrigerator according to claim 2 comprises a cooling unit disposed on a roof panel;
Drain pipe installed on the rear panel and guiding the defrost water generated by the cooling unit downward, and fixed to the bottom surface of the base panel
When the base panel and the rear panel are fastened,
A toy member whose one end is opposed to the lower end surface of the tube,
The toy member supports a lower end of the rear panel .

In the drainage device for a prefabricated refrigerator having the above features, the toy member is fixed to the lower surface of the base panel, and the toy member functions to support the lower end of the rear panel. Thereby, the lower surface of the rear panel is supported, and the efficiency of assembly work can be improved. At this time, it is desirable to form a flange portion on both sides of the toy member and provide a plurality of through holes in each flange portion. In such a case, it is preferable to insert a screw into the through hole and fasten it to the lower surface of the base panel. In addition, the contact area between the lower surface of the rear panel and the toy member is increased, and the rear panel can be reliably supported. As a result, it becomes possible to replace the toy member and perform maintenance and repair, and it is possible to further improve the work efficiency when mounting the rear panel.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a prefabricated refrigerator according to an embodiment of the present invention; First, an overall configuration of a prefabricated refrigerator using the drainage device of the prefabricated refrigerator according to the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing a state where a heat insulating door of the refrigerator is opened. FIG. 2 is a diagram showing an assembly configuration of the refrigerator main body. FIG. 3 is a perspective view of the rear corner of the base panel. In FIG. 1, a prefabricated refrigerator 1 basically includes a refrigerator main body 2 and a heat insulating door 3 which is attached to the front of the refrigerator main body 2 so as to be openable and closable, and a cooling unit 4 is provided on the upper surface of the refrigerator main body 2. Have been. The refrigerator body 2 has a roof panel 5, a base panel 6, a pair of side panels 7, and a rear panel 8, and a joiner 9 is attached to an inner surface of an edge of each of the panels 5, 6, 7. A magnetically attractable packing member 10 made of an elastically deformable material such as rubber is attached to the outer peripheral edge of the inner surface of the heat insulating door 3. 1 is slightly pressed against the front edge (the right front side in FIG. 1). At this time, the packing member 10 is brought into contact with the front edge (the front right end in FIG. 1) of the joiner 9 attached to the inner surface of the front end of each of the panels 5, 6, 7. Thereby, the cold air in the prefabricated refrigerator 1 is prevented from leaking out of the refrigerator via the packing member 10, and the interior of the prefabricated refrigerator 1 is kept airtight. On the lower surface of the base panel 6, a drain receiving support plate 11 is fixedly provided at the center front (see FIG. 5), and a drain receiving tray 12 is inserted into the drain receiving support plate 11. Also,
Leg members 13 (see FIG. 5) are fixed to four locations on the lower surface, and an adjust bolt 14 is screwed to each leg member 13. The prefabricated refrigerator 1 is disposed on a floor or the like via these adjustment bolts 14 (two locations are shown in FIG. 1). Further, an evaporator 15 is attached to the lower surface of the cooling unit 4,
Are covered by the cooling duct 17 which is fixed.

Next, each roof panel 5 of the refrigerator body 2
An assembling method using the base panel 6, the side panel 7, and the rear panel 8 will be described with reference to FIGS. First, as shown in FIG. 3, the flange portion 1 of the leg member 13 is viewed from the lower surface of the rear corners of the base panel 6 (FIG. 3 shows the front corner).
8 is threaded so as to protrude shorter than the thickness of each panel 7, 8. In addition, the toy member 19 is connected to the base panel 6.
At the center of the rear lower surface, the rear panel 8 protrudes almost the length of the thickness of the rear panel 8 (right side in FIG. 3), and a screw 37 is inserted into a through hole formed in the toy member flange portion 20, and the lower surface of the base panel 6 is It is threaded (see FIG. 5). Next, as shown in FIG. 2, the flange portion 18 of the leg member 13 and the toy member flange of the toy member 19 projecting the lower end surface of the rear panel 8 from the rear end of the lower surface of the base panel 6 (right front in FIG. 2). Abuts on the part 20 and the washer 2
2 and is fastened to the screw fastening hole 23. next,
The side panel 7 abuts on the flange portion 18 of the leg member 13 projecting from the lower surface of the left and right side surfaces of the base panel 6, and the washer 22 is inserted into the coach screw 21 and fastened to the screw fastening hole. Next, the roof panel 5 having the opening 24 for attaching the cooling unit 4 is brought into contact with the upper end surfaces of the side panel 7 and the rear panel 8, and the washer 22 is inserted into the coach screw 21 and fastened to the screw fastening hole. Assembled in a box shape. In addition, a drain hole 26 (see FIG. 4) is provided on the inner surface of the rear panel 8 at a position lower than the drain port 25 (see FIG. 5) of the cooling duct 17 substantially on the center line in the width direction of the rear panel 8.
And a drain pipe 27 buried in the rear panel 8 communicates with the lower panel of the rear panel 8 at substantially the center in the width direction. Therefore, by attaching the rear panel 8 to the base panel 6, the drain outlet 28 of the drain pipe 27 faces the toy member 19 protruding substantially in the middle of the rear lower surface of the base panel 6 in the width direction.

FIG. 4 is a sectional view of the rear panel 8 including the drain pipe 27. As shown in FIG. The rear panel 8 is fitted in the drain hole 26 of the inner wall plate 35, the outer wall plate 36, and the inner wall plate 35, and
Drain pipe 27 buried between the inner wall 5 and the outer wall 36, the inner wall 3
5 and a block member (not shown) made of a foam material disposed between the inner wall plate 35 and the outer wall plate 36. Each of the inner wall plate 35 and the outer wall plate 36 is formed of a thin plate made of a steel plate. The drain hole 26 of the inner wall plate 35 is located substantially in the middle of the width direction of the rear panel 8 (perpendicular to the paper surface in FIG. 4), and when the refrigerator body 2 is assembled, the drain hole 25 of the cooling duct 17 (FIG. 5). ). The drain pipe 27 is provided in the drain hole 2.
6 and an elbow 29, and a straight pipe 30 which is fitted to the elbow 29, communicates with the lower end surface (the right end in FIG. 4) of the rear panel 8, and slightly projects from the lower end surface. Next, assembly of the rear panel 8 will be described. In FIG. 4, the inner wall plate 3
5, and around the flat portion (upper edge and lower edge in FIG. 4) of the outer wall plate 36 (four sides) are formed side portions (four corner edges in FIG. 4) that are vertically bent inward. I have. Then, after a block member (not shown) made of a foam material is fixed to a predetermined position of the outer wall plate 36 with an adhesive or a double-sided tape or the like, the elbow 29 of the drain pipe 27 is inserted into the drain hole 26 from the inside of the inner wall plate 35. And cover the inner wall plate 35 on the block member made of a foam material, and fix it with a double-sided tape or an adhesive. Next, the drain outlet 28 (see FIG. 5) of the drain pipe 27 is located almost in the middle of the width direction of the rear panel 8 (perpendicular to the paper surface of FIG. 4) and the thickness direction of the rear panel 8 (vertical direction in FIG. 4). Hold on approximately the center line. Then, the joint portion between the inner wall plate 35 and the outer wall plate 36 is closed with a water-repellent tape or the like, and after a urethane foaming agent is injected from a predetermined injection port, the foaming is performed.
Is filled between the inner wall plate 35 and the outer wall plate 36 to form the rear panel 8. Therefore, the drain pipe 27 is connected to the rear panel 8.
Is fixed at a predetermined position in the inside by a foam material.

Next, a method of draining defrost water from the cooling unit 4 will be described with reference to FIG. FIG. 5 is a cross-sectional view including the drain pipe 27 when the cooling unit 4 is attached to the refrigerator main body 2 to form a defrosting water drain structure. The drainage structure of the defrosting water includes a cooling duct 17 for collecting the defrosting water, a drainage outlet 25 for discharging the defrosting water, a drainage tube 32 connecting the drainage outlet 25 and the drainage hole 26, and a drainage hole 26 extending from the drainage hole 26 to the lower end surface of the rear panel 8. The drainage pipe 27 guides the drainage to the abutting toy member 19, the toy member 19 guides the drainage from the lower end surface of the rear panel 8 to the drainage tray 12, and the drainage tray 12 for storing a certain amount of drainage. In addition, a number of small burring holes 33 are formed in the front bottom surface (the left side in FIG. 5) of the toy member 19 screwed on the lower surface of the base panel 6 and facing the drain tray 12. The width of the base panel 6 (perpendicular to the plane of FIG. 5) and the width of the rear panel 8 (perpendicular to the plane of FIG. 5) are substantially the same. Flange part 20
When the abutting is performed on the rear surface of the base panel 6 by the coach screw 22, the drain outlet 28 of the drain pipe 27 is located above the toy member 19. Next, assembling of the drainage structure for the defrost water, after assembling the refrigerator body 2, disposing the cooling unit 4 in the opening 24 of the roof panel 5, and then connecting one end of the drainage tube 32 to the drainage port 25 of the cooling duct 17. And the other end is inserted into the drain hole 26 of the rear panel 8. Then, it is assembled by inserting the drain tray 12 under the base panel 6. Next, the flow of defrost water will be described. First, the defrost water of the evaporator 15 is collected at the drain 25 of the cooling duct 17. Then, the defrost water in the cooling duct 17 flows into the drain pipe 27 via the drain tube 32 connecting the drain port 25 of the cooling duct 17 and the drain hole 26 of the rear panel 8. Next, the defrost water flowing into the drain pipe 27 flows downward (downward in FIG. 5), and flows into the toy member 19 from the drain outlet 28 at the lower end surface of the rear panel 8. Then, the defrost water flowing into the toy member 19 flows in the toy member 19 in the front (left side in FIG. 5) direction. Then, the defrost water flowing to the front side (the left side in FIG. 5) of the toy member 19 flows into the drainage tray 12 through the burring hole 33. When a certain amount or more of the defrost water accumulates in the drain tray 12, the defrost water in the drain tray 12 is appropriately discarded by the operator.

As described in detail above, in the drainage device for the prefabricated refrigerator 1 according to the present embodiment, the drainage outlet of the drainage pipe 27 embedded in the rear panel 8 by fastening the rear panel 8 and the base panel 6 with the coach screw 21. 2
8 and one end of a toy member 19 screwed on the lower surface of the base panel 6 are opposed to each other, and the bottom surface of the other end of the toy member 19 where a number of burring holes 33 are formed is opposed to the drainage tray 12. Become. As a result, the defrost water generated from the cooling unit 4 flows into the drain pipe 27 buried in the rear panel 8, and is guided from the drain pipe 27 to the toy member 19, and the drain tray disposed below the toy member 19. A drainage structure for draining to 12 is formed simultaneously with the assembly of the prefabricated refrigerator . Therefore, there is no need to perform piping work for draining defrost water after the assembly of the prefabricated refrigerator 1 or to connect the piping.
It is possible to improve the quality by eliminating piping mistakes and the like due to the piping work, and also to shorten the assembling work time for the piping work, and to reduce the manufacturing cost of the prefabricated refrigerator 1. Also, by reducing the diameter of the burring hole 33,
The entry of rats and the like can be prevented. Also, the toy member 1
9, a plurality of through holes are provided in the flange portion 20, and screws 37 can be inserted into the through holes and fastened to the lower surface of the base panel 6, and the contact area between the lower end surface of the rear panel 8 and the toy member 19 can be reduced. The rear panel 8 can be reliably supported. As a result, replacement of the toy member 19 and maintenance and repair become possible. Further, it is possible to further improve the work efficiency when the rear panel 8 is attached, and it is possible to reduce the manufacturing cost of the prefabricated refrigerator 1. Furthermore, since the drain pipe 27 is buried in the rear panel 8, it is possible to maximize the space for arranging goods in the refrigerator, and the toy member 19 does not protrude to the rear side of the rear panel 8, so that the toy member 19 does not stick to the wall of the room. Can be installed closely. In addition, since the width of the toy member 19 can be made larger than the diameter of the drain outlet 28 at the lower end surface of the rear panel 8, the positioning of the drain outlet 28 and the toy member 19 can be easily performed when the prefabricated refrigerator 1 is assembled. it can. Thereby, the installation space of the prefabricated refrigerator 1 can be saved, the assembling work efficiency can be improved, and the manufacturing cost of the prefabricated refrigerator 1 can be reduced.

It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various improvements and modifications can be made without departing from the gist of the present invention. Good. (A) A drain tube or the like may be attached to the drain tray 12 so that the drained defrost water flows directly into the drain. (B) The drain hole 26 is formed substantially at the center of the width of the inner wall plate 35 of the rear panel 8 and the drain pipe 27 is buried almost vertically. In this case, the drain holes 26 may be formed near the left and right ends of the inner wall plate 35 in the width direction, and may be buried diagonally so that the drain outlet 28 of the drain pipe 27 is located substantially in the center of the lower surface of the rear panel 8. . (C) The drain pipe 27 is buried substantially on the center line in the thickness direction of the rear panel 8, but may be buried in contact with the inner wall 35 or the outer wall 36.

[0017]

As described above, according to the prefabricated refrigerator drainage device of the first aspect, the rear panel and the base panel are simultaneously drained by fastening them with a coach screw.
A water structure is formed, and the lower end surface of the drain pipe provided on the rear panel faces one end of the toy member fixed to the lower surface of the base panel.

[0018] Thereby, the removal generated from the cooling unit is achieved.
Drainage system that guides frost water to drainage pipes, and from drainage pipes to toy members
A structure is formed. Therefore, after assembly of the prefabricated refrigerator
Eliminates the need for drainage piping and connection of defrost water in Japan
Eliminates plumbing mistakes caused by plumbing and improves quality
It is possible, and the assembly work time for plumbing work can be shortened.
In this case, the production cost of the prefabricated refrigerator can be reduced.

Further, according to the prefabricated refrigerator drain device of the second aspect, the toy member is fixed to the lower surface of the base panel, and the toy member functions to support the lower end of the rear panel. By supporting the lower surface of the rear panel with the toy member, the assembly work efficiency can be improved. As a result, it becomes possible to replace the toy member and perform maintenance and repair, and it is possible to further improve the work efficiency when mounting the rear panel.

As described above, the present invention provides a rear panel and a base.
By fastening the panel, it was arranged on the rear panel
Toy section fixed to the lower end of the drain pipe and the bottom of the base panel
The drainage structure is formed at the same time as the assembly
The defrost water generated in the cooling unit is guided downward by the drain pipe, and the defrost water from the drain pipe can be received by the toy member on the bottom of the base panel. It is possible to provide a drainage device for a prefabricated refrigerator capable of easily forming a drainage structure at the same time as assembling the refrigerator while easily aligning the lower end surface of the toy member with the toy member.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the prefabricated refrigerator of the present embodiment in which a heat insulating door is opened.

FIG. 2 is a view showing an assembling configuration of a refrigerator main body of the embodiment.

FIG. 3 is a perspective view of a rear corner of the base panel of the embodiment.

FIG. 4 is a cross-sectional view including a drain pipe of the rear panel of the embodiment.

FIG. 5 is a sectional view including a drain pipe when a cooling unit is attached to the refrigerator body of the present embodiment and a drain structure is formed.

[Explanation of symbols]

1 ... Prefab refrigerator, 2 ... Refrigerator body, 3 ...
・ Insulated door, 4 ・ ・ ・ Cooling unit, 5 ・ ・ ・ Roof panel, 6 ・ ・ ・ Base panel, 8 ・ ・ ・ Rear panel, 12
... Drainage tray, 17 ... Cooling duct, 19 ...
Toy member, 27 ... drain pipe, 32 ... drain pipe

Claims (2)

(57) [Claims] 1. A cooling unit provided on a roof panel, a drain pipe provided on a rear panel for guiding defrost water generated by the cooling unit downward, and fixed to a lower surface of a base panel , the base being fixed to the base panel. Panel and the
When the apanel is fastened, one end of the
A drain device for a prefabricated refrigerator, comprising: a toy member whose parts are opposed to each other. 2. A cooling unit disposed on a roof panel, a drain pipe disposed on a rear panel for guiding defrost water generated by the cooling unit downward, and fixed to a lower surface of a base panel , the base being fixed to the base panel. Panel and the
When the apanel is fastened, one end of the
A drain device for a prefabricated refrigerator , comprising: a toy member having opposite parts, wherein the toy member supports a lower end of the rear panel .