JP2003294345A - Ice making machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ice making machine for preventing separation of plating over a long period in a small ice making chamber. <P>SOLUTION: An ice making chamber 2 applied to this ice making machine has the plating processing-applied small ice making chamber 3 from the viewpoint of preventing corrosion, and therefor requires a separation preventive countermeasure against plating M. Then, a right-angled corner part appearing on the back face plate 5 side is reduced on the inside of the small ice making chamber 3 by arranging a plating inserting part 23 in a joining place 25 of a partition plate 21 and a back face plate 5. The plating M is also firmly formed in the small ice making chamber 3 by allowing the plating M to enter this plating inserting part 23 at plating processing time. Thus, when ice repeats growth and separation in the small ice making chamber 3, stress is applied to the plating, and since the plating M is firmly formed in the small ice making chamber 3, the plating is hardly separated, so that the ice making chamber 2 is used over a long time. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making machine having a structure for growing ice in each small ice making chamber provided in the ice making chamber.

[0002]

2. Description of the Related Art Conventionally, as a technique in such a field, Japanese Patent Laid-Open No. 2001-227850 and Japanese Utility Model Laid-Open No. 1752
No. 79 publication is available. The ice-making machines described in these publications have a metal ice-making chamber whose surface is plated, and the ice-making chamber has a back plate on which a refrigerant pipe is fixed on the back side and a stand plate on the back plate. It is formed by four side plates that are provided and vertical and horizontal partition plates that divide the space surrounded by the side plates into a grid pattern. The side plate is brazed with its end face in contact with the surface of the back plate, and the partition plate is brazed with its end face in contact with the surface of the back plate. The ice making chamber thus assembled has a shape in which substantially cubic ice making chambers, one of which is opened, are arranged in a matrix.

[0003]

The conventional ice making machine is provided with the ice making chamber having the above-mentioned structure. That is, the above-mentioned ice making chamber is brazed so that the end faces of the side plate and the partition plate are brought into close contact with the back plate to create each ice making chamber in a matrix. However, when tin plating is applied to such an ice making chamber, as shown in FIG.
As shown in, inside the small ice-making chamber 100, a large amount of tin plating M remains on the right-angled corner portion 101 on the back plate side due to its surface tension. As a result, by repeating the growth and separation of ice in the ice making chamber 100, the plating M attached to the right-angled corner portion 101 may be peeled off together with the ice, or the plating M may be detached from the ice making chamber 100 by vibration. was there.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an ice making machine capable of preventing the plating from peeling off in the ice making chamber for a long period of time.

[0005]

The ice making machine according to the present invention comprises:
In an ice-making machine that supplies ice-making water to an ice-making chamber having a plurality of ice-making chambers arranged in a grid, and grows ice in each ice-making chamber, the ice-making chamber has a back plate with a refrigerant pipe fixed to the back surface, It is equipped with a side plate fixed so as to stand upright on the back plate and a partition plate fixed to the back plate while partitioning the ice making space surrounded by the side plate in a grid pattern, and at the joint portion between the partition plate and the back plate. A plating insertion portion is provided, and plating is inserted into the plating insertion hole portion.

This ice making machine has a metal ice making chamber whose surface is plated, and this ice making chamber cooperates with a back plate, a side plate, and a partition plate whose refrigerant tubes are fixed to the back side. Has created multiple ice making chambers. Since the ice-making chamber has a small ice-making chamber that has been plated from the viewpoint of preventing corrosion, it is necessary to take measures to prevent the plating from peeling off. Therefore, by providing a plating insertion portion at the joint between the partition plate and the back plate, the right-angled corner portion that appears on the back plate side inside the small ice making chamber is reduced, and plating is formed well. As a result, it is possible to prevent the plating from peeling off for a long period in the ice making compartment.

Further, it is preferable that the plating insertion portion is a notch portion for insertion of plating formed at an end portion of the partition plate on the back plate side at the joining portion. When such a configuration is adopted, the plating processing can be performed in a state where the adjacent ice making small chambers are communicated with each other by the notch portion for inserting the plating.

Further, it is preferable that the plating insertion portion is a recess for plating insertion formed on the inner surface of the back plate at the joining portion. When such a configuration is adopted, the plating process can be performed in a state in which the adjacent ice making chambers are communicated with each other by the recess for plating insertion.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an ice making machine according to the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, a fountain-type ice making machine 1 has an ice making chamber 2 arranged horizontally in the machine, and this ice making chamber 2 is provided with substantially rectangular parallelepiped ice making chambers 3 arranged in a grid. Each ice making chamber 3 has an opening at the bottom. Further, a refrigerant pipe 4 communicating with the refrigeration system is closely arranged in a meandering manner on a back surface 5a of a back plate 5 forming a part of the ice making chamber 2, and a refrigerant is circulated through the refrigerant pipe 4 during the ice making operation. The ice making chamber 3 is forcibly cooled. On the other hand, immediately below the ice making chamber 2, a resin water tray 7 having an ice making water tank 6 for storing a predetermined amount of ice making water,
It is pivotally supported by a support shaft 8 so as to be tiltable. This water dish 7
Is a closed position which is horizontally positioned during the ice making operation and is held in close parallel with it so as to face the ice making chamber 2, and during the slow ice making operation, it is biased by a water tray opening / closing mechanism (not shown) and tilted downward to make the ice making machine. It tilts between an open position that opens the small chamber 3.

A plurality of fountain holes 9 are formed in the top plate 7a of the water tray 7.
The fountain holes 9 are provided in a matrix form so as to correspond to the small ice making chambers 3 when in the above-described closed position. Further, a distribution pipe 10 is provided on the back surface of the top plate 7a, and the above-mentioned fountain hole 9 is formed on the piping path of the distribution pipe 10. In addition, a large number of return holes (not shown) are formed in the top plate 7a of the water tray 7, and unfrozen water (return water) that has not been frozen in the ice making compartment 3 passes through the return holes 16 to make ice. It is collected in the water tank 6. Further, a pump 11 is fixed to the ice making water tank 6 via a bracket, a bottom portion of the ice making water tank 6 is connected to a suction port of the pump 11 via a connecting pipe 12, and a discharge port 11a of the pump 11 is a water introducing pipe. It is connected to the pressure chamber 13 of the water tray 7 via 14. The water introduction pipe 14 communicates with the distribution pipe 10 via the pressure chamber 13.

Therefore, the ice making water in the ice making water tank 6 is pressure-fed into the distribution pipe 10 via the pump 11, and the distribution pipe 10
By injecting the ice-making water therein into the ice-making small chambers 3 from the respective injection holes 9, the ice can be gradually grown on the wall surface of each ice-making small chamber 3. Further, the uniced water collected in the ice making water tank 6 through each return hole (not shown) is returned to the distribution pipe 10 by the pump 11. Note that reference numeral 18 is a drain tray for receiving the ice making water discharged from the tilted ice making water tank 6 after the ice making is completed.

Here, the metal (for example, copper) shown in FIG. 2 is used.
The procedure for assembling the ice making chamber 2 will be described. First, the end faces of the four side plates 20 are brazed along the four sides of the rectangular back plate 5. After that, in order to divide the ice making space surrounded by the four side plates 20 into a grid, the end faces of the partition plates 21 assembled in the grid are brazed.

As shown in FIG. 3, each partition plate 21 has a slit 21a which is cut halfway so as to correspond to the space between the small ice making chambers 3. Then, the slits 21a of the vertical and horizontal partition plates 21 are assembled in a grid shape so as to fit each other, and in this state, the end faces of the partition plates 21 are brazed to the back plate 5 (see FIG. 4). As a result, each ice making chamber 3
Is surrounded by five ice making chamber walls 21b such that one is opened. Then, the refrigerant pipe 4 is brazed to the back surface 5a of the back plate 5. Then, the ice making chamber 2 thus assembled is dipped in a tin plating bath, and the ice making chamber 2 is plated.

Although the ice making chamber 2 is assembled in this manner, the end of the ice making small chamber 3 on the side of the back plate 5 is, as shown in FIGS. 3 and 4, considering that the ice making chamber 2 is plated. A notch portion 23 for plating insertion, which is an example of the plating insertion portion, is formed in the portion. Since the notch 23 is formed for the purpose of reducing the surface tension of the plating, it has a depth of about 1 to 2 mm and extends slenderly along the end of each ice making chamber wall 21b. In addition, each ice making chamber wall 21b
At both ends of the cutout 23, abutting portions 24 for contacting the back plate 5 are provided.

When the partition plate 21 and the back plate 5 formed in this way are assembled by brazing, their joints 25
In, the four notches 23 are formed on the back plate 5 side of each ice making chamber 3 (see FIGS. 4 and 5).
In this assembled state, when the ice making chamber 2 is dipped in the tin plating bath, as shown in FIG. 6, the entire surface of the ice making chamber 2 is plated M and at the same time the adjacent ice making small chambers 3 are communicated with each other. The plating M enters the notch 23 in the open state.

As described above, when the cutout portion (plating insertion portion) 23 is provided at the joint portion 25 between the partition plate 21 and the back plate 5, the right-angled corner portion that appears on the back plate 5 side inside the small ice making chamber 3. Can be reduced. Moreover,
During the plating process, the plating M is placed in the notch 23.
Plated M that has entered the notch 23
Is firmly formed on the wall surface of the cutout portion 23. Further, since the plating process can be performed in a state where the adjacent small ice-making chambers 3 are communicated with each other by the notch portion 23, the plating M easily flows into the notch portion 23 and is hard to drop in the small ice-making chamber 3. A plated part can be created. Therefore, although the ice repeatedly grows and separates in the small ice making chamber 3, the plating M is firmly formed at the joint portion 25, so that the plating M is not easily peeled off, and as a result, the ice making chamber 2 withstands long-term use. It will be.

Next, the operation of the ice making machine 1 will be briefly described.

When the ice making operation is started in a state where the ice making small chamber 3 is closed by the water tray 7, the refrigerant circulates in the refrigerant pipe 4 to forcibly cool the ice making small chamber 3. After that, the ice making water in the ice making water tank 6 is jetted and supplied to each ice making small chamber 3 through the distribution pipe 10 and the fountain hole 9, and a part of the ice making water starts to be layered on the plating M of the ice making small chamber 3.

Then, the surplus water (unfrozen water) drops into the ice making water tank 6 through a return hole (not shown). When the ice making operation progresses and ice cubes having a sufficient size are generated in the ice making small chamber 3, a sensor (not shown) detects this state and switches to the deicing operation. That is, the water tray 7 and the ice making water tank 6 start to tilt by the water tray opening / closing mechanism (not shown),
Is separated from the ice making chamber 2. After that, hot gas is supplied to the refrigerant pipe 4 to melt the surface of the ice cubes in the small ice making chamber 3,
The ice cubes are dropped from the ice making chamber 3. At this time, plating M
The ice cubes fall as the surface of the ice cubes moves away from the ice cubes, but as described above, the plating M is hard to be peeled off from the ice making chamber 3, so the plating M may be peeled off together with the ice cubes. Such a situation is avoided. After that, the ice cubes are stored in an ice storage (not shown) while sliding down the top plate 7a of the inclined water tray 7.

The ice making machine according to the present invention is not limited to the above embodiment. For example, as shown in FIG. 7, a recess 28 for plating insertion may be formed on the inner surface 5b of the back plate 5 as a plating insertion portion. This recess 28
Extends along the partition plate 21 and the partition plate 2
The width N is wider than the thickness S of 1 and as a result, the inflow of the plating M is possible. With such a recess 28 for inserting the plating, the plating process can be performed in a state where the adjacent small ice-making chambers 3 are in communication with each other, so that it is possible to create a plated portion that is difficult to drop in the small ice-making chamber 3.

Further, as shown in FIG. 8, a notch portion 23 provided in the partition plate 21 and a recess 2 provided in the back plate 5 are provided.
The plating insertion portion may be formed so as to be aligned with. As a result, the plating insertion part can be enlarged.

Also in the side plate 20, each ice making chamber 3
The plating insertion portion may be provided so as to correspond to. Further, the cutout portion 23 and the recessed portion 28 are formed in the adjacent ice making chambers 3
They may not communicate with each other. Needless to say, the numbers and shapes of the cutout portions 23 and the concave portions 28 described above are appropriately selected as necessary.

Further, as shown in FIGS. 9 to 11, it is needless to say that even if the plating insertion portions 23 and 28 are blocked by the plating M, a plated portion that is hard to drop is created in the ice making small chamber 3. .

[0025]

Since the ice making machine according to the present invention is constructed as described above, the following effects can be obtained. That is,
In an ice-making machine that supplies ice-making water to an ice-making chamber having a plurality of ice-making chambers arranged in a grid, and grows ice in each ice-making chamber, the ice-making chamber has a back plate with a refrigerant pipe fixed to the back surface, It is equipped with a side plate fixed so as to stand upright on the back plate and a partition plate fixed to the back plate while partitioning the ice making space surrounded by the side plate in a grid pattern, and at the joint portion between the partition plate and the back plate. By providing the plating insertion portion and inserting the plating into the plating insertion hole portion, it is possible to prevent the plating from peeling off for a long period of time in the small ice making chamber.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of an ice making machine according to the present invention.

FIG. 2 is a cross-sectional view showing an ice making chamber applied to the ice making machine shown in FIG.

FIG. 3 is a front view showing a partition plate applied to the ice making chamber shown in FIG.

FIG. 4 is an enlarged perspective view of an essential part of the ice making chamber.

FIG. 5 is a perspective view showing an ice making compartment.

FIG. 6 is an enlarged cross-sectional view of a main part of the ice making compartment.

FIG. 7 is an enlarged sectional view of an essential part showing another example of the ice making compartment.

FIG. 8 is an enlarged sectional view of an essential part showing still another example of the ice making compartment.

FIG. 9 is an enlarged sectional view of an essential part showing still another example of the ice making compartment.

FIG. 10 is an enlarged sectional view of a main part showing still another example of the ice making compartment.

FIG. 11 is an enlarged sectional view of an essential part showing still another example of the ice making compartment.

FIG. 12 is a perspective view showing a conventional ice making compartment.

[Explanation of symbols]

1 ... Ice maker, 2 ... Ice maker, 3 ... Ice maker, 5 ... Back plate,
5a ... rear surface of back plate, 5b ... inner surface of back plate, 20 ...
Side plate, 21 ... Partition plate, 23 ... Notch portion (plating insertion portion), 25 ... Joining portion, 28 ... Recessed portion (plating insertion portion).

Claims (3)

[Claims] 1. An ice making machine for supplying ice making water into an ice making chamber having a plurality of ice making chambers arranged in a grid pattern to grow ice in each of the ice making chambers, wherein the ice making chamber has a refrigerant pipe fixed to a back surface thereof. A rear plate, a side plate fixed so as to stand upright on the rear plate, and a partition plate fixed to the rear plate while partitioning the inside of the ice making space surrounded by the side plate into a lattice shape, An ice making machine characterized in that a plating insertion portion is provided at a joint between the partition plate and the back plate, and plating is inserted into the plating insertion hole portion. 2. The ice making device according to claim 1, wherein the plating insertion portion is a notch for plating insertion formed at an end portion of the partition plate on the back plate side at the joint portion. Machine. 3. The ice making machine according to claim 1, wherein the plating insertion portion is a recess for plating insertion formed on the inner surface of the back plate at the joining portion.