JPH0451751B2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field
Related to drainage devices used in refrigeration equipment.

(b) Prior art Japanese Patent Publication No. 52-22711 (JPC, 70B43), Publication of Utility Model Publication No. 52-26389 (JPC, 70B43), Japanese Utility Model Publication No. 1987-
The drainage device in Publication No. 167875 (IPC, F25D21/14) shows a configuration that includes a drain pipe A that leads the drain from the cooler to the evaporating dish, and a drain pipe B that leads the drain inside the refrigerator to the drain tank. has been done.

According to such a configuration, the drain from drain pipe A is led to the evaporating dish, and the drain from drain pipe B is led to the drain tank, respectively, so the volume occupied by the machine room of the evaporating dish and the drain tank becomes large. A disadvantage arises in that such a drainage system cannot be applied to a machine room with a small volume. or,
Since drain pipe A is made of a hard molded product, it is necessary to place the evaporating dish directly under drain pipe A, which limits the placement of other parts such as compressors and condensers. It becomes difficult to perform maintenance and inspection of parts, and because the lower end of drain pipe A is located above the opening surface of the evaporating dish in order to pull out the evaporating dish, warm air from the machine room passes through drain pipe A to the cooler. There was also the drawback of heating the

(c) Purpose of the invention The present invention aims to solve the drawbacks of the prior art.

(d) Structure of the Invention The present invention provides a flexible drain pipe A for guiding drain from a cooler, a flexible drain pipe B for guiding drain from a condensation part other than the cooler, and a flexible drain pipe B for guiding drain from a condensing part other than the cooler. A, B
At least two holding parts are formed that regulate the degree of insertion when the lower end is inserted, and also form a stopper part for forming a waterway below the lower ends of both drain pipes A and B, and the set water level is set from the waterway. A water collection container that is formed above and has a drainage tube that defines an overflow waterway that causes the drain that has passed through the waterway from the drain pipe A or the drain pipe B to overflow when it exceeds a set water level, and directly below the water collection container. This is a drainage device that is placed outside the machine room and consists of a drainage tray that receives drain from the overflow waterway.

(E) Embodiments of the Invention The embodiments of the present invention will be explained below based on FIGS. The main body is composed of a see-through window 2 and a heat insulating wall 4 provided with a transparent door 3 slidable in the front and back directions on the front half of the upper surface. The heat insulating wall includes a pipe-on-sheet type cooler 7 having a meandering cooling pipe 6 on the outer surface of a metal inner box 5, a metal outer box 8 in which this cooler is installed, and the inner box. A so-called roll-bond type auxiliary cooler 9 extends forward from the upper edge of the back wall of the outer box, and a rear lower cooler 9 is arranged forward from the upper edge of the back wall of the outer box and overlaps the auxiliary cooler with a gap. An inclined metal upper wall 10, resin breakers 11 and 12 interconnecting the inner and outer boxes, the auxiliary cooler 9, and the upper wall 10, and between the inner and outer boxes, the auxiliary cooler, and the upper wall. The inside box 14 defined by the inner box is cooled by a cooler 7 and an auxiliary cooler 9. Reference numeral 15 denotes a storage section formed by arranging a ceiling wall 16 at a distance above the upper wall, and is equipped with a fluorescent lamp 17 for illuminating the inside and outside of the refrigerator, and the transparent door 3 is closed when the door is opened. Store it.

Reference numeral 18 denotes a machine room formed below the heat insulating wall, in which a refrigerant compressor 19 and a wire fin type condenser 20, which together with the cooler and auxiliary cooler constitute a refrigeration cycle, are installed, and a water collection container with an open top is installed. 21 have been installed. On the bottom of this machine room,
A metal base 23 is provided, which has a portion located directly below the condenser 20 opened to form an intake passage 22 for guiding air for cooling the condenser and compressor.
Also, on the back side, there is an exhaust passage 2 for cooling the condenser and compressor and discharging warm air to the outside.
A removable cover 25 formed with 4A and 24B is provided. The compressor and water collection container are fixed to a mounting portion 23A at the rear of the base 23, and the condenser 20 is connected to the intake path 2 through a pair of front and rear legs 26, 27.
It is fixed to the opening edge of No. 2. 28 is a flexible drain pipe A connected to a guide pipe A 28A through which drain from the cooler 7 passes, and 29 is a flexible drain pipe A connected to a guide pipe B 29A through which drain generated on the surface of the upper wall 10 passes. Drain pipe B and machine room 18 respectively.
exposed to warm air.

The water collection container is made of a resin molded product, and as shown in FIGS. 2 and 3, it has a bottom wall 30 and a peripheral wall 3.
1, and both drain pipes A and B rise from the bottom wall.
At least two cylindrical holding parts 32, 32 that hold the lower ends of 28, 29, also rise from the bottom wall, define an overflow waterway 33, and have a lower end protrusion 34A that extends from the mounting part 23A of the base. A drainage tube 34 that projects downward, an engagement piece 35 formed at one end of the bottom wall and engaged with the mounting portion 23A, and a fastener 37 such as a screw formed at the other end of the bottom wall. It is integrally provided with an overhang piece 36 that is fixed to the mounting portion 23A. Each of the holding parts includes a stopper part 39 that regulates the degree of insertion of both drain pipes A, B 28, 29 and forms a water channel 38 below the lower ends of both drain pipes A, B, and each of the holding parts 32, 3.
2 gives elasticity to itself and forms a gap 40 defining the water channel. In addition, both drain pipes A and B
If the inner diameters of the drain pipes 28 and 29 are the same, as shown in FIG.
If the inner diameter of the drain pipe B29 is smaller than the drain pipe A28, the drain pipe B is inserted so as to be positioned within the holding part 32, as shown in FIG. Reference numeral 41 denotes a drainage tray disposed outside the machine room immediately below the water collection container, which is equipped with a handle 42 for pulling out, is supported by a pair of left and right rails 43 fixed to the lower surface of the base 23, and is connected to the water collection container 2.
Store the drain from 1.

The drainage device of the present invention has both the above-mentioned drainage pipes A and B2.
8, 29, a water collection container 21, and a drain tray 41.

FIG. 5 shows an embodiment in which the present invention is applied to a refrigerator 50, in which a guide pipe A28A for passing the cooler 7 and the drain of the refrigerator interior 14, a transparent door 3 and a lower rail 5 are shown.
A guide pipe B29A through which one drain passes is spaced apart in a front-back relationship, and both drain pipes A, B28 and 29 are connected to both guide pipes A and B.

According to such a configuration, both drain pipes A, B28, 2
Drain from drain 9 is collected from the water channel 38 into the water collecting container 21, and when the water level reaches a set level or higher, it flows from the overflow channel 33 into the drain tray 41 and is stored therein. If the amount of drain stored in this drain tray is small, it is gradually evaporated by the radiant heat from the condenser 20, but if it is a large amount, it can be discarded by pulling out the drain tray 41 from below the machine room 18. Therefore, the water collection container 21 is connected to both the drain pipes A, by the holding parts 32, 32.
It serves as an adapter for B28, 29, and also collects drain from both drain pipes A, B28, and 29, and when the water level reaches a set level or higher, drains the drain from the overflow waterway 33 to the drain pan 41 outside the machine room, acting as a U-trap. Therefore, not only is there no need to provide a large container for collecting water in the machine room 18, but warm air from the machine room 18 does not enter into both drain pipes A, B 28, 29, and as a result, the compressor 19 and condenser The arrangement work and maintenance/inspection work of the cooler 20 are facilitated, and a decrease in heat exchange of the cooler 7 due to entry of warm air can be prevented. In addition, since both drain pipes A, B28, and 29 are flexible, the compressor 19 and condenser 2
After determining the location of the water collection container 21, not only can the water collection container 21 be positioned, but also the holding parts 32, 32
This makes it extremely easy to attach and detach the water collection container 2.
It also becomes extremely easy to remove dirt and dust that have settled at the bottom of the container. In addition, the holding part 3 is held by the stopper part 39.
Since the water channel 38 is formed by regulating the degree of insertion of both drain pipes A, B28, 29 into the holding parts 32, 32, the flow of drain in the holding parts 32, 32 can be maintained smoothly.

(f) Effects of the invention Since the present invention is configured as described above, the effects listed below are produced.

The water collection container collects the drain from the cooler and the drain from condensation parts other than the cooler inside the machine room and drains it into the drain pan outside the machine room, so the water collection container in the machine room can be made smaller. This not only simplifies the arrangement and maintenance of the compressor and condenser, but also allows the water collection container to be placed in a machine room with a small volume.

A U-trap is formed by the holding part of the water collection container and the overflow waterway, and since the drain can seal both drain pipes A and B with warm air, it is possible to avoid a decrease in heat exchange of the cooler due to warm air in the machine room.

With both flexible drain pipes A and B, there is no need to particularly limit the placement location of the water collection container, and both drain pipes can be easily connected to the holding part.

[Brief explanation of the drawing]

The drawings show an embodiment of the drainage device of the present invention, FIG. 1 is a longitudinal cross-sectional view of a refrigerated case equipped with a drainage device, FIG. 2 is an enlarged view of FIG. 1A, and FIG. 3 is a front perspective view of a water collection container. 4 are longitudinal sectional views of main parts of another embodiment corresponding to FIG. 2, and FIG. 5 is a longitudinal sectional view of a refrigerator equipped with a drainage device. 7...Cooler, 18...Machine room, 21...Water collection container, 28...Drain pipe A, 29...Drain pipe B, 3
2, 32...Holding section, 33...Overflow channel, 41...Drainage pan.

Claims (1)

[Claims] 1 Flexible drain pipe A that leads the drain from the cooler
and a flexible drain pipe B that guides drain from condensation parts other than the cooler, and regulates the degree of insertion when the lower ends of both drain pipes A and B are inserted.
At least two holding parts formed with stopper parts for forming water channels below the lower ends of both drain pipes A and B, and a set water level are formed above the water channels, and from the drain pipes A or B. A water collection container comprising a drain tube defining an overflow channel that causes the drain that has passed through the water channel to overflow when the water level exceeds a set water level; A drainage device consisting of a drainage tray that receives water.