JPH109733A - Ice making machine - Google Patents

Abstract

(57) [Problem] An object of the present invention is to provide a pipe heater for ice separation on an upper plate of a sprinkler, thereby shortening the ice separation time and preventing a decrease in ice making capacity. SOLUTION: 9 is an ice making plate provided with a refrigerating system evaporator 2 and a pipe heater 10 for ice separation, which is arranged in an inclined shape, and a fixed water outlet is provided on an upper end portion of the ice making plate 9 via a heat insulating sheet 4. The sprinkler 5 having an upper plate 5A, a lower plate 5B, and a sprinkler pipe 5C, and an upper plate 5A of the sprinkler 5 is provided with an extended pipe heater 10 for ice separation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an ice making machine for producing ice by circulating and supplying ice making water to an ice making plate.

[0002]

2. Description of the Related Art As a conventional ice making machine, an ice making plate having a refrigerating system evaporator and an ice releasing pipe heater arranged on one side is arranged in an inclined manner, and water is sprayed on an upper end portion of the ice making plate through a heat insulating sheet. A water tank is arranged at the lower end with the vessel attached, a pipe is connected between the water tank and the sprinkler via a pump, and ice making water is circulated and supplied to the ice making surface of the ice making plate under the action of the pump. There is known a structure in which the frozen layer is grown and reaches a certain thickness, the frozen layer is separated from the ice making plate by a pipe heater for releasing ice, and this cycle is repeated.

An example of the above-described conventional ice making machine will be described below with reference to the drawings. FIG. 4 shows a conventional ice maker. In FIG. 4, reference numeral 1 denotes an ice making plate provided with a refrigerating system evaporator 2 and an ice separating pipe heater 3, which are arranged in an inclined manner.

[0004] At the upper end of the ice making plate 1, a water sprinkler 5 having a constant water outlet is disposed via an insulating sheet 4, and is constituted by an upper plate 5A, a lower plate 5B and a water sprinkling pipe 5C.
A water storage tank 6 is arranged at the lower end of the water storage tank 6 and the sprinkler 5
And a circulation pipe 8 via a circulation pump 7.

The operation of the ice maker constructed as described above will be described below. The water stored in the water storage tank 6 is circulated through a circulation pump 7 through a circulation pipe 8 to a sprinkler 4 at the upper end of the ice making plate 1 on which the evaporator 2 and the ice-breaker pipe heater 3 are disposed.
Is circulated to the ice making surface of the ice making plate 1 from the water outlet of the water sprinkler 5 under the action of the circulation pump 7 to gradually grow a frozen layer, and when the frozen layer reaches a certain thickness, the frozen layer is formed by the pipe heater 3 for ice release. This cycle is repeated by separating ice from the plate 1.

[0006]

The conventional ice making machine uses a sprinkler 5 for growing the frozen layer on the ice making plate 1 especially at a low outside temperature.
Ice is also generated on the upper plate 5A by heat conduction from the ice making plate 1 on the upper plate 5A, and since the pipe heater 3 for deicing is disposed only on the ice making plate 1 during the ice releasing cycle, time is required for deicing the frozen layer. And the ice making capacity is reduced.

[0007] In addition, there is another problem that since water does not flow uniformly on the ice making plate, deformed ice is generated due to moisture leakage, and the ice thickness is reduced (detected by the amount of water) due to falling water drops.

The present invention has been made to solve the above-mentioned conventional problems, and has as its first object to release ice from a frozen layer at the time of ice release in a short time.

A second object is to reduce the heat conduction of the sprinkler from the ice making plate during ice making. A third object of the present invention is to prevent the water from flowing uniformly on the ice making plate and prevent the ice thickness from being reduced due to deformed ice due to moisture leakage and falling of water droplets.

[0010]

In order to achieve the first object, an ice making machine according to the present invention is provided with an ice separating pipe heater on an upper plate of a water sprinkler to prevent ice formation during ice making. .

Further, in order to achieve the second object, the present invention prevents heat conduction from the ice making plate to the upper plate of the sprinkler.

Further, in order to achieve the third object, a flat plastic sheet is inserted between the upper plate and the lower plate of the sprinkler so that water flows uniformly on the ice making plate.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to achieve the first object of the present invention, an ice separating pipe heater is arranged on an upper plate of a sprinkler according to the above-mentioned structure, whereby ice is supplied to the upper plate of the sprinkler during ice making. The purpose is to prevent the generation and shorten the ice-removal time, thereby preventing the ice-making ability from decreasing.

Further, in order to achieve the second object, heat conduction from the ice making plate to the water sprinkler during ice making is prevented by interposing a heater in the heat insulating sheet.

Further, in order to achieve the third object, a flat plastic sheet is inserted between the upper plate and the lower plate of the sprinkler, so that water flows uniformly on the ice making plate. This is to prevent the reduction of the ice thickness (for detecting the amount of water) due to the falling of water droplets.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An ice maker according to a first embodiment of the present invention will be described below with reference to the drawings.

(Embodiment 1) In FIG. 1, reference numeral 9 denotes an ice making plate provided with a refrigerating system evaporator 2 and a pipe heater 10 for ice removal.
The water sprinkler 5 which is arranged in an inclined manner and has a constant water outlet at the upper end of the ice making plate 9 via the heat insulating sheet 4 is an upper plate 5A and a lower plate 5A.
The sprinkler 5 is constituted by a water sprinkling pipe 5C, and an ice separating pipe heater 10 is extendedly provided on the upper plate 5A of the sprinkler 5.

A water storage tank 6 is arranged at the lower end of the ice making plate 9, and the water storage tank 6 and the sprinkler 5 are constituted by a circulation pipe 8 via a circulation pump 7.

The operation of the ice maker constructed as described above will be described below. The water stored in the water storage tank 6 is introduced into the water sprinkler 5 at the upper end of the ice making plate 9 provided with the evaporator 2 and the pipe heater 10 for ice separation by the circulation pipe 8 via the circulation pump 7. The circulating pump 7 circulates and supplies the icing layer to the ice-making surface of the ice-making plate 9 from the flowing water port 5 under the action of the circulation pump 7 to gradually grow the icing layer.
The ice layer is formed on the ice making plate 9 and the upper plate 5A of the sprinkler 5 to separate the ice layer from the ice making plate 9 and the cycle is repeated.

According to this embodiment, the icing layer formed on the upper plate 5A of the sprinkler 5 at a low outside air temperature is deiced in a short time.

(Embodiment 2) Next, an ice making plate according to a second embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

An ice making plate 1 provided with an evaporator 2 and an ice separating pipe 3 is provided with a sprinkler 5 having a constant water outlet through a heater 12 in a heat insulating sheet 11 at the upper end.

The operation of the ice maker constructed as described above will be described below. Circulation pump 7 on the ice making surface of ice making plate 1
At this time, the ice making plate 1 prevents the heat conduction to the upper plate 5A of the water sprinkler 5 by the heater 12 in the heat insulating sheet 11 at this time.

According to this embodiment, the icing layer is used for growing the sprinkler 5
This prevents heat conduction to the upper plate 5A and minimizes the formation of ice on the upper plate 5A, thereby shortening the ice separation time.

(Embodiment 3) Next, an ice making machine according to a third embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description will be omitted.

The sprinkler 13 inserts 14 into a flat plastic sheet between the upper plate 5A and the lower plate 5B, and
Constitutes the sprinkler 13.

The operation of the ice maker constructed as described above will be described below. The water stored in the water storage tank 6 is guided from the circulation pipe 8 to the sprinkler 13 via the circulation pump 7 to form a water outlet with a plastic sheet 14 inserted between the upper plate 5A and the lower plate 5B. The water flowing out of the mouth is guided to the plastic sheet, supplied with a uniform flow, and free of irregular ice and water drops due to moisture leakage.

[0028]

As described above, according to the present invention, deicing of a frozen layer at a low outside air temperature can be surely performed in a short time.

Further, the present invention is to reduce the heat transfer from the ice making plate to the upper plate of the sprinkler during the ice generating operation, thereby shortening the ice separation time.

Further, according to the present invention, by inserting a flat plastic sheet between the upper plate and the lower plate of the sprinkler, the water from the water outlet is guided to the ice making plate, the water flows uniformly, and the deformed ice and water droplets are dropped due to moisture. There is no decrease in ice thickness (because the ice thickness is determined by the amount of water).

[Brief description of the drawings]

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

FIG. 2 is a sectional view of a sprinkler section of an ice making machine according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a sprinkler section of an ice making machine according to a third embodiment of the present invention.

FIG. 4 is a sectional view of a water sprinkler section of a conventional ice making machine.

[Explanation of symbols]

 2 Evaporator 4 Insulation sheet 5 Sprinkler 5A Upper plate 5B Lower plate 5C Sprinkler pipe 6 Reservoir 7 Circulation pump 8 Circulation pump 9 Ice plate 10 Ice pipe heater 11 Insulation sheet 12 Heater 13 Sprinkler 14 Plastic sheet

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tomohiro Kobayashi 4-2-5 Takaidahondori, Higashiosaka City, Osaka Inside Matsushita Refrigeration Co., Ltd.

Claims (3)

[Claims] 1. A circulating pump for circulating ice making water to an ice making plate provided with a refrigerating system evaporator and an ice separating pipe heater, and a water outlet at an upper end of the ice making plate to generate an ice plate. An ice making machine comprising: a sprinkler comprising an upper plate, a lower plate, and a water sprinkling pipe; and an ice separating pipe heater disposed on the upper plate. 2. A circulating pump for circulating ice making water to an ice making plate provided with a refrigerating system evaporator and an ice separating pipe heater, and a flowing water port at an upper end of the ice making plate to generate an ice plate. An ice making machine comprising: a sprinkler composed of an upper plate, a lower plate, and a sprinkler pipe; and a heater that is energized during the ice generation operation in a heat insulating sheet at a connection between the ice making plate and the sprinkler. . 3. A circulating pump for circulating ice-making water to an ice-making plate provided with a refrigeration system evaporator and an ice-separating pipe heater, and a water outlet at an upper end of the ice-making plate to generate an ice plate. A sprinkler consisting of an upper plate, a lower plate, and a sprinkler pipe, and a flat plastic sheet inserted between the lower plate and the upper plate that form the sprinkler to make the flow of water uniform and water from the initial sprinkler An ice machine characterized by preventing leakage.