JPH0243028Y2 - - Google Patents

Description

[Detailed description of the invention] a. Industrial application field The present invention relates to a drainage pipe structure in an ice maker, and in particular, the invention is designed to prevent the remaining water from making ice from flowing back into the ice storage, and to finally use one common drainage pipe. This article relates to new improvements for draining water.

b. Conventional technology Most conventional ice makers have a structure in which residual ice-making water and melted water from the ice storage are drained through independent drain pipes. There is.

That is, the case where the typical configuration is adopted in the injection type automatic ice making machine shown in FIG. 5 will be explained.

In FIG. 5, an ice-making chamber 2 having a plurality of small ice-making chambers 2a is provided at an upper position in a main body 1 made of a heat insulating material or the like via a mounting portion 3.
A cooler 4 is provided on the top surface.

An ice-making water tank 5 is located at the bottom of this ice-making compartment 2.
A water tray 6 is provided so as to be openable and closable via a shaft support 7 provided on the main body 1, and the ice-making water in the ice-making water tank 5 is pumped to the water tray 6 by a circulation pump 8 and a pipe 9. , each of the ice making compartments 2a.
The water supply pipe 11 of the water supply valve 10 provided at the upper part of the main body 1 is disposed above the water tray 6.

Washing water and ice-making residual water drained from the ice-making mechanism section 12 consisting of the water tray 6, ice-making water tank 5, etc. are guided into a drain tray 13 disposed at a lower position of the ice-making water tank 5. The drain port 13a of the drain tray 13 is connected to the first drain pipe 1 provided in the main body 1.
Connected to 4. Further, the melted water of the ice 17 is drained from a second drain pipe 16 formed on the bottom plate 15a of the ice storage 15 provided at a lower position of the ice storage 15, and the lower part of the ice storage 15 is drained. The refrigerant gas from the refrigeration mechanism section 19 consisting of the compressor 18 etc. installed at
is supplied to.

In the case of the conventional configuration shown in FIG. 5, the piping structure connected to the first and second drain pipes 14 and 16 is as shown in FIG. 6, with three L-shaped pipes 20 and three, respectively. Each of the water supply valves 10 is configured to use two straight pipes 21, and the water supply valve 10 is connected to a water pipe (not shown) via the L-shaped pipe 20 and the straight pipe 21.

In addition, in the case of the conventional configuration shown in Fig. 7, it shows a structure in which two drain pipes are combined into one and led out of the main body. An example used will be explained.

An ice making plate 2 having a generally flat plate shape is installed in an inclined position at the upper part of the main body 1 made of a heat insulating material or the like, and a cooler 4 is provided on the lower surface of the ice making plate 2. An ice-making water tank 5 is provided in the main body 1 at a lower position of the ice-making plate 2, and the ice-making water in the ice-making water tank 5 is supplied from the water sprinkling port 9a through a circulation pump 8 and a pipe 9. This configuration is such that the ice is supplied onto an ice-making plate 2. A water supply pipe 11 of a water supply valve 10 provided at the upper part of the main body 1 is arranged above the ice making water tank 5.

Overflow water drained from the overflow port 5a of the ice-making water tank 5 in the ice-making mechanism section 12 consisting of the ice-making plate 2, ice-making water tank 5, etc. is drained through a first drain pipe 14 provided in the main body 1. and this first
The drain pipe 14 is connected to a second drain pipe 16 formed on the bottom plate 15a of the ice storage 15 formed at a lower position of the ice-making water tank 5, and led out to the outside as a combined drain pipe 16a. A cut heater 2b is disposed at the upper part of the ice storage 15, and the plate ice 17 made on the ice making plate 2 is cut into ice cubes by the cut heater 2b and stored.

Furthermore, a compressor 1 is provided at the lower part of the main body 1.
The refrigerant gas from the refrigeration mechanism section 19 consisting of
It is supplied to the cooler 4 of the ice making plate 2.

In the case of the conventional configuration shown in FIG. 7, the piping structure connected to the combined drain pipe 16a is as shown in FIG. The water supply valve 10 has a structure in which the water is drained directly downward, and a structure in which a pair of L-shaped pipes 20 are used and a straight pipe 21 is installed to extend a predetermined distance in the horizontal direction, as shown by the solid line B. It is connected to a water pipe (not shown) via a pair of L-shaped pipes 20 and a pair of straight pipes 21.

c Problems to be Solved by the Present Invention In the case of the conventional configuration as described above, various problems existed during drainage.

In other words, in general, in automatic ice making machines, after one ice making process is completed, the remaining ice making water is disposed of, or the remaining ice making water is diluted and overflowed, and the remaining ice making water is drained outside the main body. As shown in Figure and Figure 6, in the structure using two drainage pipes, when installing an ice maker, the drainage piping work has to be doubled, which increases the price of the machine and the installation cost, and also increases the connection cost. The possibility of water leakage was also high due to the large number of locations.

In addition, as shown in FIGS. 7 and 8, when the combined water is discharged outside the ice maker main body 1 using one combined drain pipe 16a, as shown by the dashed line A in FIG. In a configuration in which water is drained immediately below from the combined drain pipe 16a, drainage is relatively smoothly carried out, but as shown in the solid line B in FIG. 8 and in FIG. 9, the length L of the straight pipe 21 is , the second of the ice storage 15 for this length L
Since the head dimension H of the drain pipe 16 is too small, the ice-making residual water that has fallen from the first drain pipe 14 will flow back into the ice storage 15, as shown in FIG. The melting of the ice within 15 occurred,
The ice-making residual water containing many impurities sometimes enters the ice storage 15 and comes into contact with ice, which is extremely unsanitary.

d. Means for solving the problem Therefore, the purpose of the present invention is to provide a double-pipe drainage pipe structure that can prevent the remaining water discharged from the ice-making water tank from flowing back into the ice storage. To achieve this objective, an ice making machine is provided which has an ice making water tank for storing ice making water supplied to an ice making mechanism and an ice storage for storing ice made by the ice making mechanism. According to the present invention, the drainage pipe structure is as follows:
a first drain pipe having an upper end connected to the ice-making water tank and a lower end serving as a substantially horizontal residual water discharge part; a vertical part connected to the bottom plate of the ice storage; a substantially L-shaped second drain pipe consisting of a melt water discharge section that extends horizontally; is substantially the same as the direction of discharge of melt water from the second drain pipe,
The second drain pipe extends inside the melt water discharge section in substantially the same direction as the melt water discharge section.

c. Effect The ice-making residual water overflowing from the ice-making water tank enters the first drain pipe from the upper end of the first drain pipe, and leaves the first discharge part through the residual water discharge part at the lower end. Meltwater in the ice storage enters the vertical section of the second drain and leaves the second drain via the horizontal meltwater outlet.

The residual water discharge section of the first drain pipe is disposed within the melt water discharge section of the second drainage pipe, and the direction of discharge of residual water from the residual water discharge section is the direction of discharge of melt water from the melt water discharge section. Therefore, near the open end of the residual water discharge part of the first drain pipe, the inside of the second drain pipe becomes negative pressure, the melted water in the ice storage is sucked, and the ice maker runs out without causing backflow. released outside the body.

f. Embodiment Hereinafter, a preferred embodiment of the drain pipe structure in the ice maker according to the present invention will be described in detail with reference to the drawings.

Note that the same or equivalent parts as in the conventional example will be described using the same reference numerals.

The one shown in Fig. 1 is a plate type automatic ice maker, which is a suitable example when the drain pipe structure of the present invention is applied. It goes without saying that the same effect can be obtained when applied to a machine.

In Fig. 1, the reference numeral 1 indicates the ice maker body made of a heat insulating material, etc. At the upper part of the ice maker body 1, an ice maker plate 2 having a generally flat plate shape as a whole is installed in an inclined state. A cooler 4 is provided on the lower surface of the ice-making plate 2. An ice-making water tank 5 is provided in the ice-making machine main body 1 at a lower position of the ice-making plate 2, and the ice-making water in the ice-making water tank 5 is supplied via a circulation pump 8 and a pipe 9 to a water sprinkling port 9a. The ice is supplied from the ice plate 2 onto the ice making plate 2.

Water supply valve 1 provided at the top of the ice maker main body 1
0 water supply pipe 11 is arranged above the ice making water tank 5.

Overflowing water drained from the ice-making water tank 5 in the ice-making mechanism section 12 consisting of the ice-making plate 2, the ice-making water tank 5, etc. is drained from the ice-making water tank 5 provided in the wall portion 1a of the ice-making machine main body 1. It is configured to be discharged to the outside through the first drain pipe 14 connected to the connected drain pipe (upper end portion) 14b.

The first drain pipe 14 is connected to the drain pipe 14b within the bottom portion 1b of the ice making machine main body 1, and is connected to the ice storage 1 formed at a lower position of the ice making water tank 5.
It is connected to a second drain pipe 16 provided on the bottom plate 15a of No. 5.

Further, a cut heater 2b is disposed at the upper part of the ice storage 15, and the plate ice 17 made on the ice making plate 2 is cut into ice cubes by the cut heater 2b and stored. The refrigerant gas from the refrigeration mechanism section 19, which is provided at the lower part of the ice-making plate 2 and includes a compressor 18, is supplied to the cooler 4 of the ice-making plate 2.
It is connected to the.

The first and second drain pipes 14 and 16 are
As shown in detail in the figure, the tip (substantially horizontal residual water discharge part at the lower end) 14a of the first drain pipe 14 connected to the drain pipe 14b
The whole is formed into a substantially L-shape by a vertical part connected to the bottom plate 15a of the ice storage 15 via a joint part 16d, and a melt water discharge part extending horizontally from the vertical part to the outside of the ice maker main body. It is inserted into the melt water discharge part of the second drain pipe 16, and this tip part 14
The bottom wall 16a of the second drain pipe 16 is a double structure having a space 16b for a predetermined length l.
The first drain pipe 14 is integrally formed on the top, and the first drain pipe 14 merges into the second drain pipe 16. Incidentally, the longer the double pipe structure is, the better the drainage effect becomes.

The ice maker main body 1 in the second drain pipe 16
The end portion 16c exposed from the wall portion 1a includes a straight pipe 21 and an L-shaped pipe 2 as described in connection with FIG.
0 can be connected.

Next, in the above configuration, the case where water is drained after ice making using the drain pipe structure in the automatic ice making machine according to the present invention will be described. teeth,
Utilizing the head, the water is drained from the drain pipe 14b, through the first drain pipe 14, through the tip 14a in the second drain pipe 16, and from the end 16c of the second drain pipe 16 to the straight pipe 21. Ru.

When this diluted waste water passes through the first drain pipe 14 vigorously, the space 16b having the double pipe structure becomes in a negative pressure state where the air pressure decreases, and due to this negative pressure action, the melted water in the ice storage 15 is the second drain pipe 1
The suction effect is as follows:
The stronger the amount and force of diluted water, the better the effect.

Therefore, unless the tip of the straight pipe 21 connected to the tip of the second drain pipe 16 is located at a higher level than the second drain pipe 16 itself, the diluted water drained from the ice-making water tank 5 will be Water flows backwards into ice storage 1
It does not affect the ice within 5.

In this embodiment, the flow of drainage from the ice-making water tank in a plate-type automatic ice-making machine has been described, but the structure of the present invention is not limited to this embodiment, and, for example, the structure of the present invention is not limited to this embodiment. It goes without saying that exactly the same effect can be achieved with a structure in which water from the ice-making water tank in a jet-type automatic ice-making machine is received in a drainage tray and then drained, or in the structure of other ice-making machines. That's true.

g Effect of the invention The drainage pipe structure of the automatic ice maker according to the invention is the first
The drain pipe and the second drain pipe not only have a double pipe structure, but also the remaining water discharge part of the first drain pipe is substantially connected to the melt water discharge part of the second drain pipe. Since the pipes extend horizontally in the same direction, the melt water in the ice storage is sucked and discharged by the negative pressure caused by the drainage flowing through the first drain pipe, and the ice in the ice storage is removed.
It does not melt due to backflow water or comes into contact with diluted ice water that contains many impurities, so it can achieve revolutionary effects such as maintaining extremely hygienic conditions.

In addition, according to the configuration of the present invention, the drainage position can be extended to a considerable distance by connecting straight pipes, giving a wide range of freedom in setting the installation location of the automatic ice maker. It is something that can be achieved.

[Brief explanation of the drawing]

Figures 1 to 4 are for showing the drainage structure of the automatic ice maker according to the present invention. Figure 1 is a sectional view showing the overall structure, and Figure 2 is a drain pipe in Figure 1. A, B, and C in Figure 3 are plan views, side views, and front views showing the structure of the drainage pipe in Figure 1, and Figure 4 is the drainage pipe in Figure 1. An enlarged cross-sectional view to show the drainage condition of the pipe,
The structures from Fig. 5 to Fig. 9 are for showing the drain pipe structure of conventionally used automatic ice makers. Fig. 5 is a cross-sectional view showing an injection type automatic ice maker, and Fig. Fig. 7 is a sectional view showing the drain pipe structure of the plate type automatic ice maker, and Fig. 8 is a perspective view showing the piping installed in the automatic ice maker shown in Fig. 7. FIG. 9 is an enlarged sectional view showing the drain pipe structure of the automatic ice maker shown in FIG. 7. 5...Ice making water tank, 12...Ice making mechanism section, 1
4...First drain pipe, 15...Ice storage, 14a...
Tip part (lower end part or residual water discharge part), 14b...
...Drainage pipe (upper end), 15a...Bottom plate, 16
...Second drain pipe, 17...Ice.

Claims (1)

[Scope of utility model registration request] In an ice making machine having an ice making water tank 5 for storing ice making water supplied to the ice making mechanism section 12 and an ice storage 15 for storing ice 17 made by the ice making mechanism section 12, the upper end portion 14b is Ice making water tank 5
The first drain pipe 14 is connected to the bottom plate and has a substantially horizontal residual water discharge part 14a, and the vertical part connected to the bottom plate 15a of the ice storage 15 and the substantially horizontal part connected to the bottom plate 15a of the ice storage 15. a substantially L-shaped second drain pipe 16 consisting of a melt water discharge section extending from
The residual water discharge part 14a of the first drain pipe 14 is
The inside of the melt water discharge part of the second drain pipe 16 is arranged so that the discharge direction of residual water from the first drain pipe 14 is substantially the same as the discharge direction of melt water from the second drain pipe 16. A drain pipe structure in an ice maker that extends in substantially the same direction as the melt water discharge section.