JPH0440139Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to an ice making machine.

[Prior art]

In conventional ice making machines, water is supplied to an ice making tank which is cooled by a cooler, and air bubbles are sent to the water in the ice making tank to stir it and generate ice on the wall surface of the ice making tank. The ice making process was completed using a timer or temperature detection.

[Problem that the invention attempts to solve]

However, timers that control the time have the disadvantage that the amount of ice produced varies due to changes in the surrounding environment, and those that use temperature detection have problems with cleaning, hygiene, and ice removal. When there are two tanks, it is very difficult to detect the inner tank that actually serves as the ice-making tank, and even in the case of a single tank, the tank itself has to be devised, resulting in a complicated structure. Ta.

[Means for solving problems]

As shown in Figures 1 and 2, the present invention supplies water to an ice making tank that is cooled by a cooler, and generates ice on the wall of the ice making tank by sending air bubbles to the water in the ice making tank and stirring it. In the ice making machine, an ice making detection lever reaching into the ice making tank is rotatably supported on the portion that becomes the lid of the ice making tank, and a float movable up and down is provided at the lower end of the ice making detection lever. The ice-making completion switch is turned on by the rotation of the ice-making detection lever.

[Effect]

According to the present invention, as the ice layer grows on the inner wall surface of the ice making tank, the float is pushed inward by the ice layer, and as a result, the ice making detection lever rotates, and this rotational movement causes the ice making detection lever to rotate. The ice making completion switch is now turned on. The reason why the float can be moved up and down with respect to the ice-making detection lever is to prevent the float from moving up and down the liquid level due to stirring air bubbles, which will cause it to become undetectable due to ice growth. It is.

〔Example〕

1 is the ice maker body, 2 is a compressor, 3 is a condenser, 4 is a cooling fan, and 5 is an air pump. Reference numeral 6 designates a heat insulating tank to which the ice making tank 7 is detachably attached, and a refrigerant pipe 8 is installed on the outer periphery of the inner wall surface of the tank.
(cooler) is installed. 9 is ice making tank 7
This heater is used to melt frost, etc. that has formed in the small space between the ice making tank 7 and the inner wall surface of the heat insulating tank 6 when the ice making tank 7 is taken out.

When making ice, a predetermined amount of water is supplied into the ice making tank 7, air bubbles are supplied through the air pipe 10 by the air pump 5, and the compressor 2 is driven to cool the ice making tank 7. It is something.

Reference numeral 11 designates a heat insulating lid which is pivotally attached to the upper opening of the heat insulating tank 6 so as to be openable and closable, and a recess 12 is formed in the inner surface of the lid, and an ice making detection lever that reaches into the ice making tank 7 is provided in the recess 12. 13 is rotatably mounted on a pivot 14.

Numeral 15 is a float inserted into the ice-making detection lever 13 so as to be slidable up and down, so that it floats on the liquid level in the ice-making tank 7.

16 is an ice-making completion switch that faces the upper end of the ice-making detection lever 13 and is pressed and closed when the detection lever 13 rotates;
attached to a vertical wall.

Here, the operation of the present invention will be explained. When making ice, water is poured into the ice making tank 7 and when the compressor 2 and air pump 5 are driven, the water in the ice making tank 7 is stirred by air bubbles from the air pump 5, and the ice is made by the refrigerant pipe 8. Tank 7 is cooled. As the ice making tank 7 cools down, an ice layer is formed on the inner wall surface of the ice making tank 7, and this ice layer gradually grows and increases toward the center as shown in FIG. At this time, the float 15 floating on the liquid surface of the ice making tank 7 moves toward the center as the ice layer grows, and the ice making detection lever 13 rotates clockwise about the pivot 14 as a fulcrum. Eventually, the upper end of the ice-making detection lever 13 turns on the ice-making completion switch 16, and the ice-making operation stops.

The reason why the float 15 is movable up and down with respect to the ice-making detection lever 13 is because the float 15 moves up and down the liquid level due to air bubbles for stirring, which causes ice to grow and become undetectable. This is to prevent

〔effect〕

Since the present invention is constructed as described above, it has an extremely simple construction and is capable of reliable ice-making completion detection with fewer malfunctions.

[Brief explanation of drawings]

FIG. 1 is a schematic vertical sectional view of the ice maker of the present invention, and FIG. 2 is an enlarged sectional view of the main parts of the same ice maker. 1...Ice maker body, 5...Air pump, 7...
... Ice making tank, 8 ... Refrigerant pipe (cooler) 11 ... Lid,
13...Ice making detection lever, 15...Float, 16...
...Ice making completion switch.

Claims (1)

[Scope of utility model registration request] In an ice making machine, water is supplied to an ice making tank which is cooled by a cooler, and at the same time, air bubbles are sent to the water in the ice making tank to generate ice on the wall surface of the ice making tank while agitating the water. An ice making detection lever that reaches into the ice making tank is rotatably supported on the part that becomes the lid of the ice making detection lever, and a float that can be moved up and down is provided at the lower end of the ice making detection lever. An ice maker characterized by having an ice making completion switch turned on.