JPS63201465A - Cell type ice machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a cellular ice making machine.

(Prior art and its problems) Conventionally, a cell ice maker has a compressor, a condenser, an expansion valve,
Ice is made using a refrigeration cycle consisting of an evaporator, etc., and dehydrated using hot gas obtained from the compressor.

By the way, in the conventional cell-type ice making machine, since the compressor and the large-sized condenser are built in, the entire device becomes large-sized. In addition, since the ice-making mold and refrigerant piping were integrally attached by welding or other means, and ice was made by heat conduction through the refrigerant, only water of a certain shape was always obtained, making it impossible to make ice of various shapes. There was a problem.

The present invention utilizes the principle of vortex cooling. When compressed air is blown into the pipe from the supply port in the tangential direction at sonic speed, an ultra-high-speed vortex is generated inside the pipe. We focused on the fact that the inner vortex has an intermittent deceleration effect on the outer vortex, causing the temperature to drop and generate ultra-low temperature air in the center of the tube. It is an object of the present invention to provide a cell-type ice maker that can solve the above-mentioned conventional problems by using an ultra-low temperature air generator based on the principle.

(Means to Solve the Problems) In order to achieve the above object, the cellular ice maker according to the present invention is provided with an ultra-low temperature air generator that applies the principle of vortex cooling outside the ice making mold, and when making ice. Cold air generated from the generator and warm air during dehydration are blown onto the top surface of the ice-making mold.

(Example) Next, a cellular ice maker according to the present invention will be described with reference to drawings which are examples.

FIG. 1 shows an application of the present invention to a cell-type ice maker, in which l denotes an ice-making mold, and this ice-making mold 1 has a large number of ice-making chambers 2 that open downward, and each of the ice-making chambers A blowout nozzle 3 for blowing cold air or warm air onto the ice-making mold 1 is disposed above the ice-making mold 2, and is connected to an ultra-low temperature air generator 10 through a pipe 3a. In addition, the side wall 1 of the ice making mold 1
A is provided with a temperature sensor 16c, which is connected to thermoswitches 16a and 16b via connectors or other connectors. The ultra-low temperature air generator 10 applies the principle of vortex cooling, and the compressor 12
receives compressed air (2 to 7 Kg/cm"G) and generates cold air and warm air.Cold air valves 13a, 1
3b and warm air valve 14 are valves that control the flow of cold air and warm air, respectively.

Further, a heat retaining plate 9a is removably provided so as to cover the upper part of the ice making mold 1, and the jet nozzle 3 is provided passing through this heat retaining plate 9a. The cold air or warm air ejected from the jet nozzle 3 stays in the space formed by the heat retaining plate 9a and the ice making mold I, and is discharged to the outside from the outlet 9b provided on the side wall of the heat retaining plate 9a. Ru.

Reference numeral 5 denotes a water storage tank, which is disposed below the ice-making mold 1, and an opening 6a is provided in the top plate 4 of the tank 5 in correspondence with the ice-making chamber 2 of the ice-making mold 1. Further, within this opening 6a, a supply pipe 8 having a water fountain 6b directed toward the ice making chamber 2 at a predetermined interval is arranged.

This supply pipe 8 communicates with the lower part of the water tank 5 via a circulation pump 11. The water tank 5 is pivotally supported at one end so as to be tiltable, as in a conventional ice maker, and the tip of the tank 5 is tilted downward to drain water during dewatering as described below.

Note that 15 is a water supply valve for supplying water to the water tank 5.

With the above configuration, in order to make ice now, compressor 1
2 to supply compressed air to the ultra-low temperature air generator IO. The cold air generated by the ultra-low temperature air generator IO is ejected from the jet nozzle 3 toward the ice making mold 1 when the cold air valve 13a is open and the warm air valve 13b and the warm air valve 14 are closed, and the cold air collides with the top surface of the ice making mold 1. After being cooled using jet heat transfer, it is discharged to the outside air from the discharge port 9b.

The water W in the water storage tank 5 is supplied to the water fountain 6b by the circulation pump 11.
The ice is ejected into each ice-making compartment 2 from the ice-making chamber 2.

On the other hand, a part of the spouted water W freezes on the inner wall surface of the ice-making chamber 2, and the remaining water flows down from the discharge hole 7 formed in the opening 6a to the water storage tank 5, and the above process is repeated to make ice. ends. At this time, a small amount of warm air generated from the rear of the ultra-low temperature air generator 10 is released to the outside.

When ice making is completed, the thermoswitches 16a and 16b operate, and the actuator motor I7 operates.

The water tank 5 is tilted by this actuator motor 17, the water W remaining in the water tank 5 is drained, and the changeover switch 1
8 is switched, the actuator motor 17 is stopped, the cold air valve 13a is closed, and the injection of cold air to the ice making mold I is stopped. At the same time, the cold air valve 13b is opened, and the cold air is supplied to a water storage chamber (not shown) and used for cold storage.

Furthermore, the warm air valve 14 is opened, warm air is jetted from the jet nozzle 3 onto the upper surface of the ice making mold 1 via the compression Ja 12, the dewatering process is started, and a portion of the ice melts. and,
The ice falling from each ice-making chamber 2 slides down on the top plate 4 and is stored in a water storage chamber (not shown).

Note that during dewatering, the water supply valve 15 is opened and the top plate -4
cleaning for a certain period of time.

When the dehydration is completed in the manner described above, the thermoswitches 16a and 16b are activated, the actuator motor 17 is activated, the water storage tank 5 is returned to its original horizontal state, and the selector switch 18 is switched, and the actuator motor 17 is stopped. At the same time, water is supplied to the water storage tank 5 for the next ice-making process, and the next cycle starts. The supply pipe 8 and the drain hole 7 having the water fountain hole 6b may be arranged so that the drain hole 7 is provided on both sides of the water fountain hole 6b, as shown in FIG.・
(Effects of the Invention) As is clear from the above explanation, according to the present invention, the ultra-low temperature air generator can easily obtain cold air by supplying a predetermined amount of compressed air using a compressor, so it is possible to easily obtain cold air. The condenser, expansion valve, and evaporator that were required in the refrigerant cycle are no longer required, making the device more compact, reducing the number of parts, and since no refrigerant gas is used, there is no risk of leakage. Therefore, it is possible to obtain a cell-type ice maker that is highly reliable, easy to maintain, and inexpensive.

In addition, since it utilizes impinging jet heat transfer instead of conventional cooling by heat conduction, ice can be made in a short time and is extremely efficient.

Furthermore, in the present invention, since the conventional heat conduction type is replaced with impinging jet heat transfer and there is no need for refrigerant piping etc. integrated with the ice making mold, the ice making mold can be freely attached and detached. Therefore, by preparing ice making molds of various shapes (for example, heart shape, one conical shape, etc.) and replacing the ice making molds as required, it is possible to obtain water of different shapes with one ice making machine.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of the present invention, and FIG. 2 is an electric circuit diagram.
FIG. 3 is a sectional view showing another embodiment of the drainage hole. 1... Ice-making mold, 2... Ice-making chamber, 3... Spout nozzle, 5... Water tank, 6b... Fountain hole, 10... Ultra-low temperature air generator, 12... Compressor .

Claims (1)

[Claims] (1) An ultra-low-temperature air generator that applies the principle of vortex cooling is installed outside the ice-making mold, and cold air generated from the generator is blown out during ice-making, and warm air is blown onto the top of the ice-making mold during dehydration. A cell-type ice maker with special features.