JP2002228315A - Drainage structure for automatic ice making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dropping down of water drops condensed on a circulating pump, or leaked oil, in an ice making section for an automatic ice making machine. SOLUTION: Ice making water in an ice making water tank 30 is sucked by the circulating pump 45 to supply the same into the ice making section A while the ice making water not used in the ice making section is returned into the ice making water tank. A drain pan 37 made of a synthetic resin covers the lower side of the circulating pump provided at one side of the ice making water tank, and is provided with a draining pipe 39 on the bottom surface of the same while the ice making water tank is provided with an overflow hole 34, whose lower end is opened immediately above the drain pan. The drain pan is provided with a passage 37a formed so as to be extended in up-and- down at a part immediately below the overflow hole while the bottom surface immediately below the passage 37a is preferable to be inclined into a direction descending toward the draining pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ice making machine, and more particularly to a structure of a drainage portion for discharging water overflowed from an ice making water tank and water generated by condensation.

[0002]

2. Description of the Related Art As an automatic ice maker of this type, there is an automatic ice maker having a closed cell type ice maker disclosed in Japanese Utility Model Laid-Open Publication No. 2-38063. This supports a block composed of a water tray, a water tank, and a circulation pump in a reciprocating tilting manner under the ice making chamber, which has a large number of ice making cells with an open lower side.In the ice making operation state, the water tray approaches the ice making cell. Let
The ice making water in the water tank is supplied to the ice making cell from the fountain hole provided in the water tray by the circulation pump to freeze the ice, and after the freezing is completed, the water dish is tilted away from the ice making cell, and the ice making cell is heated to generate ice. The separated ice block is removed, and the ice block is slid on a water dish and dropped into a lower ice storage. In this conventional technique, the water tank and the case of the circulation pump are made of metal, and in particular, ice water cooled to near 0 ° C. is stored in the water tank during the ice making operation, so that the water in the ice storage becomes water droplets. As a result, there is a problem that the water drops grow and fall, and the ice blocks stored in the ice storage are melted, and the ice blocks stick together due to re-freezing. The water tank is provided with an overflow pipe for directly discharging excess ice making water to the outside when the internal water level becomes too high.

[0003] As means for solving such a problem,
There is a technique disclosed in Japanese Patent Application Laid-Open No. 9-210521. This is an automatic ice maker equipped with a closed-cell type ice making unit, which is provided with a drain pan whose size is such that only the tip of the water tank protrudes below the water tank and the circulation pump. The water receiving device receives water droplets that are condensed on the water and water that overflows from the water tank, and discharges the water to the outside through a drain port formed in the drain pan. In addition, the two conventional technologies of the closed cell type described above both support a block composed of a water tray having a considerable weight, a water tank, and a circulation pump in a reciprocally tiltable manner, so that the structure becomes complicated,
There is a problem that a failure easily occurs.

An automatic ice making machine that solves the problems of the two prior arts described above is capable of horizontally inserting and removing an ice making water tank from the lower end of a box-shaped ice making case having an opening formed below the front wall. The ice making water in the ice making water tank is sucked by a circulation pump, sent to a watering nozzle, spouted upward from a spout, and spouted by an ice making cell in an ice making room provided in an upper part of an ice making part case. The ice mass falling from the ice making cell after ice making is received by an ice chute provided in the middle of the ice making unit case and slid forward and downward, and hangs down by its own weight, closing the front opening of the ice making unit case. Some include an open-cell type ice making unit that pushes the separator open and sends it out of the ice making unit case. In this type of ice making unit, since the movable part is only a light separator hanging down by its own weight, the structure is simplified, and a failure hardly occurs. Further, the ice making water tank is a synthetic resin molded article, and is less likely to condense on the surface thereof as compared with a metal-made water tank. Therefore, the ice making water tank is not provided with the drain pan as in the second prior art described above. Is provided with an overflow hole, and excess ice making water is directly discharged to the outside by an overflow pipe connected to the overflow hole.

[0005] An automatic ice maker of this type includes an ice maker provided with a falling ice maker disclosed in, for example, JP-A-7-318207. This cools the ice making plate in the ice making section,
The ice making water in the synthetic resin ice making water tank is supplied to the ice making section by a circulation pump, and flows down on the ice making surface of the ice making plate to produce plate-like ice. The iced water is returned to the ice making water tank, and is again supplied to the ice making section by the circulation pump.

[0006]

In the third and fourth prior arts described above, since the ice making water tank is made of synthetic resin, the water in the ice storage dew forms on the surface of the tank compared to a metal tank. Although it is unlikely, the case of the circulation pump is made of metal, so that water droplets may condense on the surface of the case and grow and fall. This has the problem of contaminating the lower machine room and adversely affecting the equipment inside it, and when it falls into the ice storage, the ice blocks and ice plates stored inside it are melted and re-freezed. There is a problem that ice blocks and ice plates stick together. In some cases, there is a problem that oil leaks from the circulating pump and the falling oil contaminates the lower machine room or adversely affects the equipment inside it. There is a problem that the ice blocks and ice plates that have been used are soiled. Further, an overflow pipe is connected to the ice making water tank, and when installing and removing the ice making water tank for cleaning or the like, it is necessary to attach and detach the overflow pipe, so that there is a problem that it takes time and effort. An object of the present invention is to solve each of these problems.

[0007]

SUMMARY OF THE INVENTION A drainage structure for an automatic ice making machine according to the present invention comprises an ice making part, an ice making part for storing required ice making water to be supplied to the ice making part and receiving ice making water not used in the ice making part. In the drainage structure of an automatic ice maker comprising a water tank, a circulation pump for supplying ice making water in the ice making water tank to the ice making section, and a communication member for communicating the circulation pump with the ice making water tank, A drain pan made of synthetic resin with a drainage pipe connected to the bottom while covering the lower side of the circulation pump arranged on one side of the tank,
The ice making water tank is provided with an overflow hole opened directly above the drain pan.

[0008] In the invention of the preceding paragraph, it is preferable that a portion directly below the overflow hole on the bottom surface of the drain pan is inclined in a downward direction toward the drain pipe.

The invention of the preceding two aspects is directed to a partition wall in which a vertically extending passage is formed in a part of the drain pan by a partition wall, and an overflow hole is opened directly above a portion to be formed in the passage, and is connected to a bottom surface of the drain pan. It is preferable to form a notch hole at the lower end of.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. In this embodiment,
The present invention is applied to an automatic ice maker provided with an open-cell type ice maker A. As shown in FIG. 6, the automatic ice maker is an automatic ice maker main body 70 and an open-cell type ice maker A provided at an upper portion inside the main body. The automatic ice making machine 70 includes a front plate 71 a and a rear plate 71.
b, left and right side plates 71c and a bottom plate 71d
1 and an ice storage box 7 which is formed of a thick heat insulating peripheral wall and has an open upper surface and an upper front half portion, and is supported above the machine room 71 in a box shape.
2, a heat-insulating ceiling plate 73 and an upper front plate 75 that respectively cover the upper surface and the upper front surface of the ice storage 72, and a machine room 7
1 and a lower front plate 74 covering the lower front surface of the ice storage 72.
And a heat-insulating door 76 whose lower edge is attached to the upper edge of the lower front plate 74 via a hinge 76a to open and close an opening formed between the lower front plate 74 and the upper front plate 75. A handle 76 is provided on the upper edge of the
b and packing 76c are attached. A compressor, a condenser, a refrigerator including a cooling fan, etc. (not shown) for supplying the cooled refrigerant to the ice making unit A are provided in the machine room 71, and a drain provided at the bottom of the ice storage 72 is provided. A drain hose (not shown) connected to the port 72a is led to the outside through the inside of the machine room 71.

The ice making section B of the ice making section A has left and right brackets 10L and 10R.
Overhangs 10a projecting from the lower part of L, 10R to both left and right sides
Protrudes rearward, places the protrusion of the overhang portion 10 a on a support member 77 fixed slightly above the inner surface of the rear wall of the ice storage 72, and further bolts the left and right brackets 10 L, 10 R to the ceiling plate 73. Thereby, the ice making unit A is supported at the upper part in the ice storage 72. There is a considerable gap between the rear surface of the ice making section A above the overhang portion 10a and the rear wall of the ice storage 72. In this portion, an accumulator 78 of the refrigerator, piping for water supply and refrigerant, electric wiring, etc. Is provided.

As shown in FIGS. 1 and 2, an ice making section A of this embodiment includes an ice making section B, an ice making water tank 30 provided at a lower end thereof, and a lower portion in the ice making section case B. Watering nozzles 40 provided in the upper part and the middle part,
It comprises an ice making chamber 50 and an ice chute 60. The ice making section B is box-shaped as a whole, and mainly includes a pair of left and right brackets 10L and 10R, and a front wall 17 and a rear wall 20 connecting front and rear edges thereof. Since the vertical width of the front wall 17 is considerably smaller than the rear wall 20, an opening Ba is formed in the lower half of the front side of the ice making case B, and the opening Ba is closed by an openable and closable separator 25 as described later. I have.

As shown in FIGS. 1 and 2, each of the left and right brackets 10L and 10R has an inverted L-shape whose upper part is outwardly bent as a whole when viewed from the front side. A plurality of reinforcing ribs 14a extending in the vertical direction,
14b and 14c are formed. Each bracket 1
In the lower part of 0L and 10R, there is formed an overhanging portion 10a having an inward U-shaped cross-section and protruding outward and extending horizontally in the front-rear direction. And a support projection 13b are formed. The overhang 10a protrudes rearward from the rear wall 20, and the tank support groove 11 formed between the lower flange 13a and the support protrusion 13b also extends rearward from the rear wall 20. Support projection 13b
The upper surface of each bracket 10L, 10L is inclined so that the rear portion thereof rises, and extends in parallel with the upper surface.
The nozzle support groove 12 formed between the protruding plate 13 c formed to protrude inward at R stops before the rear wall 20. The circular support protrusions 14e formed on the front and rear portions of the inner surfaces of the brackets 10L and 10R above the protruding plate 13c are positioned lower on the front side than on the rear side. An extension 16 for attaching a drain pan 37 and a circulating pump 45, which will be described later, is formed integrally with a lower portion of the left bracket 10L, and an intermediate portion is located between the two reinforcing ribs 14a (see FIG. 3). An insertion hole 15 through which a water supply hose 47 for sending water to the watering nozzle 40 is formed.

The front wall 17 is a rectangular synthetic resin plate whose upper and lower widths are considerably narrower than those of the brackets 10L and 10R.
A round support rod 18 which is reinforced by a and 17b and extends in the lateral direction is integrally formed on the lower edge. The separator 25 that opens and closes the opening Ba in the lower half of the front side of the ice making unit case B is divided into six, the number of which is the same as the number of rows of the outlet 43 of the watering nozzle 40 and the ice making cell 52 of the ice making chamber 50, which will be described later. And an engaging portion 25b having a C-shaped cross section formed on the upper edge thereof. Each of the separators 25 has an engagement portion 25b inserted into a slit 19 (see FIG. 2) formed in the lower edge of the front wall 17, and the pivot rod 1
By being rotatably engaged with the outer peripheral surface of 8, it is suspended and supported swingably.

The rear wall 20 is a rectangular synthetic resin plate having a vertical width that substantially closes the rear side of the ice making case B,
Its upper edge is reinforced by a laterally extending rib 20a,
A cover 21 that extends rearward and covers most of the upper part of the rear part of the ice making water tank 30, which will be described later, is formed integrally with the lower edge. The cover 21 has a cutout (not shown) for passing a supply hose for supplying ice-making water to the ice-making water tank 30.

The brackets 10L and 10R, the front wall 17 and the rear wall 20 are all integrally formed of synthetic resin. In this embodiment, each of the left and right brackets 10L and 10R inserts both ends of the chute support tube 24 into each support protrusion 14e, and inserts both ends of the front wall 17 and the rear wall 20 into grooves formed on the front and rear edges. Although they are mechanically stopped and connected, they may be connected by adhesion.

As shown in FIGS. 1 to 4, the ice making water tank 30 has a substantially triangular shape in which the left side of the central portion is recessed downward as viewed from the front, has a substantially rectangular planar shape, and has an open upper side. It is a molded synthetic resin product, and is supported detachably by inserting a shallow support portion 30a protruding on both left and right sides thereof into the tank support groove 11 of the ice making case B from the front side in the horizontal direction. The ice making water tank 30 mainly occupies a shallow drain groove 32 formed along most of the rear edge and having one end on the left bracket 10L side slightly bent forward as shown in FIG. Ice making water storage unit 3
It is divided into 1. The deepest part of the ice making water storage part 31 is located on the left bracket 10L side, and a water supply port 33 protruding toward the left bracket 10L side is formed at the front of this deepest part, and is on the left bracket 10L side. An overflow hole 34 is formed at the middle part in the front-rear direction (see FIGS. 3 and 4) on the bottom surface of the shallower part closer to the support part 30a. The overflow hole 34 is located in a compartment 31a defined by a partition 31b in a part of the ice-making water accommodating section 31 (see FIG. 4).
“a” is communicated with the remaining portion of the ice making water storage unit 31 by an opening (not shown) formed in the lower part of the partition wall 31b.

The bottom surface of the drain groove 32 is provided with the right bracket 10R.
A drain hole 35 is formed on the bottom surface of the deepest portion, which is the tip of the forward bent portion of the left bracket 10L, from the side toward the left bracket 10L. The rising wall 30b formed on the front surface of the ice making water tank 30 is extended upward to a position close to the lower edge of each separator 25, and the left and right side walls 30c are tank supporting grooves except for the front part which is the same height as the rising wall 30b. 11
It is a height that can be inserted into.

As shown in FIGS. 1-4, the left bracket 1
Below 0L, a drain pan 37 is provided at a position behind the middle part in the front-rear direction and to the left of the deepest part of the ice making water tank 30. The drain pan 37 is a box-shaped synthetic resin molded product whose upper side is opened, and is screwed and fixed to a protruding portion 16a (see FIG. 1) formed below the extension 16 below the left bracket 10L.
A drain pipe 39 is connected to a discharge port 38 provided at the bottom of 7. The tip of the drainage pipe 39 is
Is led to a drain port 72a provided at the bottom of the container.

As shown in FIGS. 1 and 3 to 5, the drain pan 37 has a rectangular cross-sectional shape larger than the overflow hole 34 in a plan view at a corner portion on the front side and the center side of the ice making water tank 30. Passage 37 extending vertically
a is formed by the partition wall 37b. This passage 37
The bottom of the drain pan 37 directly below the drain pan 39
A notch 37c is formed at the lower end of the partition wall 37b connected to the base of the inclined bottom surface. Then, the support portion 30a of the ice making water tank 30 is moved to the normal position to the tank support groove 1.
1 and the ice making water tank 3 as described above.
The overflow hole 34 formed in the upper part of one side of the ice making water storage part 31 is opened immediately above a portion of the drain pan 37 which is inside the passage 37 a. Further, as described above, the drain hole 35 formed at the deepest portion of the bottom surface of the drain groove 32 of the ice making water tank 30 is located behind the drain pan 37 and in the ice making water tank 3.
It is open above the corner at the center of 0.

As shown in FIGS. 1 and 3 to 5, the circulating pump 45 fixed to the lower surface of the extension 16 of the left bracket 10 L by bolts is provided inside the drain pan 37 so that the lower side is covered by the drain pan 37. positioned. A suction port 45b of a pump portion 45a of the circulating pump 45 projects forward from the drain pan 37 to form a suction pipe (communication member) 4.
6 is connected, and the other end of the suction pipe 46 is connected to the water supply port 33 of the ice making water tank 30 through a pipe joint 46a which is easily detachable. The water supply hose 47 having one end connected to the discharge port 45c of the pump 45a enters the ice making case B through the space between the two reinforcing ribs 14a formed on the left bracket 10L and the insertion hole 15, and the other end is next. It is connected to the sprinkling nozzle 40 described.

The sprinkling nozzle 40 is a liquid-tight combination of a pair of upper and lower synthetic resin molded products formed by ultrasonic welding so as to form a flat shape as a whole. Means 24 spouts 43 with 4 rows and 6
Are formed in rows. On one side of the watering nozzle 40, two openings for cleaning each of the lateral tubular passages are formed,
Each opening is liquid-tightly closed by a cap 42 made of silicone rubber. The water sprinkling nozzle 40 has both left and right ends inserted and attached from the front side into the nozzle support groove 12 of the ice making case B, and the other end of the water supply hose 47 is connected to a water supply port formed at the upper center part thereof. I have.

As shown in FIG. 2, the ice making chamber 50 located at the upper part in the ice making part case B has an ice making board 51 whose both ends are supported on the upper parts of the left and right brackets 10L and 10R, and the lower side is opened. 24 short and round cylindrical ice-making cells 52
Are aligned with and fixed to the respective ejection ports 43 of the watering nozzle 40. Each of the ice making cells 52 and the ice making substrate 51 are made of metal such as copper or aluminum having good thermal conductivity, and a cooling pipe 53 meanders closely above the ice making substrate 51 so as to pass through the center of each ice making cell 52. Refrigerant from a refrigerator in the machine room 71 is circulated and supplied to the cooling pipe 53 to cool the ice making cell 52.

As shown in FIGS. 1 and 2, the ice chute 60 has a plurality of elongated slide plates 7 arranged in a vertical direction.
1 are connected to the connecting members 62a, 62b, 62
c, and the lower surfaces of the front and rear portions are connected by a pair of lateral support leg pieces 63, and the whole is integrally formed of synthetic resin. This ice shoot 6
0 is a pair of support leg pieces 63 for each of the two chute support cylinders 24.
By elastically engaging with the outer peripheral surface of the
0, it is detachably supported in the ice making case B so as to be inclined forward and downward, and the gap between each slide member 61 is aligned with each ejection port 43 of the watering nozzle 40, and from each ejection port 43 The spouted ice making water is not obstructed by the ice chute 60.

In the ice making operation, the refrigerator is operated to cool each ice making cell 52, the ice making water in the ice making water tank 30 previously filled to the level of the overflow hole 34 is sucked by the circulation pump 45, and the water supply hose is supplied. The water is supplied to the watering nozzle 40 through the nozzles 47 and the respective ice making cells 52
Spouts upward toward. The spouted ice making water passes between the slide members 61 of the ice chute 60 and is applied to the inner surface of each ice making cell 52 that has been cooled, a part of the ice making cell 52 is frozen on the inner surface, and the rest is in the ice making water tank 30 by gravity. Is returned to the watering nozzle 40 again by the circulation pump 45, and is repeatedly ejected toward the inner surface of the ice making cell 52, so that the ice frozen in each ice making cell 52 gradually increases with time, The level of the ice making water in the ice making water tank 30 gradually decreases. When the inside of the ice making cell 52 is almost filled with ice, the ice making operation is stopped and hot gas is introduced into the cooling pipe 53, so that the ice making chamber 50 is heated and each ice making cell 52 and the ice generated inside the ice making cell 52 are heated. Is melted, the ice in each ice making cell 52 falls as a short columnar ice block on the ice chute 60, and slides obliquely forward and downward toward the separator 25. Then, the separator 25 which is hung down and closed by gravity is automatically pushed open and dropped from the ice making unit case B into the ice storage 72. Then, a predetermined amount of ice making water is supplied into the ice making water tank 30 by a supply hose (not shown), and the ice making operation is repeated by operating the refrigerator again to cool the ice making chamber 50.

In this embodiment, the drain pan 37 need only be small enough to cover the circulation pump 45 and the overflow hole 34 from below, and if too much ice making water is supplied into the ice making water tank 30, Excess ice water is supplied to passage 37
a from the overflow hole 34 located just above
Through the drain pan 37, through the outlet 38 and the drain pipe 39, and through the drain 72 at the bottom of the ice storage 72.
It is not necessary to connect an overflow pipe to the overflow hole 34 since the gas is discharged from the outside to the outside. Therefore, the drainage structure of the automatic ice making machine is compact and simplified. Further, when the ice making water tank 30 is attached and detached for cleaning or the like, the ice making water tank 30 is connected to the water supply port 33 through the easily attachable / detachable joint 46a. It is only necessary to remove the suction pipe 46 and insert and remove the suction pipe 46 into and from the tank support groove 11, so that the labor for mounting and removing is also reduced.

In the above-described embodiment, the drain pan 37 is formed with a passage 37a extending vertically by the partition wall 37b, and the bottom surface of the drain pan 37 immediately below the drain wall 37 is inclined in a direction to descend toward the drain pipe 39. The notch 3 is formed at the lower end of the partition wall 37b connected to the bottom surface.
7c, and the overflow hole 34 of the ice making water tank 30 is formed.
Is opened just above the passage 37a, so that the drainage falling from the overflow hole 34 does not deviate to the side and the passage 3
It falls to the bottom of the drain pan 37 through 7a, immediately flows in the direction of the drain pipe 39, and is less likely to bounce off the bottom of the drain pan 37 and scatter around. Therefore, the circulating pump 45 which is an electric component provided in the drain pan 37
The likelihood of water being sprayed is reduced, so that failures are less likely to occur.

In this type of automatic ice maker, an ice storage 72
If the level of the ice block exceeds a predetermined height, the level switch detects it and stops the operation of the ice making section A. If the level switch fails, the circulation pump 45 contacts the rising ice block. May break down.
However, according to the above-described embodiment, even if the level switch fails, the lower side of the circulation pump 45 is protected by the drain pan 37 and does not come into contact with the ice blocks, so that failure due to such a cause can be prevented. it can.

In the above-described embodiment, the present invention is applied to an automatic ice making machine having an open-cell type ice making section. However, the present invention is not limited to this, and the present invention is not limited to this. If an automatic ice making machine is used in which water is sucked by a circulation pump and supplied to the ice making section, and ice making water not used in the ice making section is returned to the ice making water tank, the above-described fourth conventional technique and the like are included. It is applicable to various types of automatic ice machines.

[0030]

According to the present invention, since the lower side of the circulating pump is covered with a drain pan made of synthetic resin having a drain pipe connected to the bottom surface, water from the water drop or the circulating pump which is condensed and falls on the case of the circulating pump. The leaked oil is received by the drain pan and discharged from the drain pipe, and does not fall into the lower machine room or the ice storage. In addition, water does not condense on the drain pan to form water droplets and fall into the lower machine room or the ice storage. Therefore, such water droplets and oils do not contaminate the lower machine room and do not adversely affect the equipment inside the machine room.The ice blocks in the ice storage are melted, and the ice blocks stick together due to re-freezing. There is no danger that the oil mass in the ice storage will be contaminated by the leaked oil. The drain pan should be small enough to cover the circulation pump and overflow hole from below.
The excess ice making water overflowing from the overflow hole of the ice making water tank falls into the drain pan and is discharged from the drain pipe.There is no need to connect the overflow pipe to the ice making water tank, so the drain structure of the automatic ice making machine is compact and simple. It becomes a thing.

According to the structure in which the portion directly below the overflow hole on the bottom surface of the drain pan is inclined so as to descend toward the drain pipe, the drain water that has fallen into the drain pan from the overflow hole immediately flows toward the drain pipe. flow,
Since there is little rebound from the bottom surface of the drain pan, the possibility that water is applied to the circulating pump, which is an electric component, is reduced.

Further, a passage extending vertically by a partition wall is formed in a part of the drain pan, and an overflow hole is opened directly above a portion to be formed in the passage, and is formed at a lower end of the partition wall connected to a bottom surface of the drain pan. According to the notch hole formed, the drainage that falls into the drain pan from the overflow hole drops through the passageway to the bottom of the drain pan without deviating to the side and flows in the direction of the drain pipe from the notch hole. The risk of water being applied to the circulating pump is further reduced.

[Brief description of the drawings]

FIG. 1 is an overall front view showing a part of an embodiment of an ice making section of an automatic ice making machine according to the present invention, with a part thereof cut away.

FIG. 2 is a right side view of FIG. 1 excluding the vicinity of a right bracket.

FIG. 3 is a left side view of FIG.

FIG. 4 is a plan view mainly showing a positional relationship between an ice making water tank and a drain pan in the embodiment shown in FIG. 1;

FIG. 5 is an enlarged sectional view taken along line 5-5 in FIG. 4;

FIG. 6 is a side sectional view showing the entire structure of an automatic ice maker provided with an ice maker.

[Explanation of symbols]

Reference numeral 30: ice water tank, 34: overflow hole, 37: drain pan, 37a: passage, 37b: partition wall, 37c: notch hole, 39: drain pipe, 45: circulation pump, 46:
Communication member (suction pipe), A ... ice making part.

Continued on the front page (72) Inventor Masahiro Kotani 3-16 Hoshizaki Electric Co., Ltd., Sakaemachi Minamikan, Toyoake City, Aichi Prefecture (72) Inventor Chimi Toritani 16th Hoshizaki Electric Co., Ltd. 3rd, Sakaemachi Minamikan, Toyoake City, Aichi Prefecture

Claims (3)

[Claims] 1. An ice making section, an ice making water tank for storing required ice making water to be supplied to the ice making section and receiving ice making water not used in the ice making section, and an ice making water in the ice making water tank. In a drainage structure of an automatic ice making machine including a circulation pump for supplying the ice making section and a communication member that communicates the circulation pump with the ice making water tank, the circulation pump is provided on one side of the ice making water tank. A drain pan made of synthetic resin having a drain pipe connected to a bottom surface while covering a lower side, and an overflow hole opened directly above the drain pan is provided in the ice making water tank. Construction. 2. The drainage structure for an automatic ice maker according to claim 1, wherein a portion of the bottom surface of the drain pan, which is directly below the overflow hole, is inclined in a downward direction toward the drainage pipe. Automatic ice machine drainage structure. 3. A drainage structure for an automatic ice making machine according to claim 1, wherein a part of said drain pan has a vertically extending passage formed by a partition wall, and said overflow hole is located inside said passage. A cut-out hole is formed in a lower end portion of the partition wall which is opened right above the bottom surface of the partition wall and connected to a bottom surface of the drain pan.