JPH03140773A - Refrigerator - Google Patents

Abstract

PURPOSE:To obtain a refrigerator in which an automatic ice making device and an automatic ice cream manufacturing device can be used selectively by a method wherein an ice making pan is superposed onto a heat insulating tank arranged with a heater on the bottom of the inner surface thereof, the ice making pan is pivoted together with a water cutting pan, a drainage pan and a drainage pipe are provided below the water cutting pan, and a vessel, provided with a spiral rotary body replaceable with the ice making pan on the repeatedly swinging bottom thereof and replaceable with a heat insulating tank having a bottom surface with a curved configuration, is provided. CONSTITUTION:Unidirectional freezing operation is effected by cold air from the surface of water toward the lower part of the same by the heating effect of a heater 32 from the lower surface of a heat insulating tank 28 and when a driving device 40 is operated subsequently, an ice making pan 33 is pivoted and converted whereby water, not frozen yet, is separated and is discharged through a drainage pan 46 and a drainage pipe 47, which are provided below. Subsequently, when a water cutting pan 37, having ice thereon. is pivoted and turned over, the ice drops into an ice reserving box 50. On the other hand, when a vessel 70 for manufacturing ice cream is set and the driving device 40 is operated, the mix 78 of ice cream is cooled and agitated, then, the crystal of ice is pulverized while rolling the mix by the rotating effect of the spiral rotary body 66.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention particularly relates to a refrigerator which selectively performs automatic ice making of clear ice and automatic ice cream production.

Conventional technology An example of a refrigerator with an automatic ice maker is
It is disclosed in Japanese Patent No. 17139, and its contents will be explained below with reference to FIGS. 11 and 12.

1 is the refrigerator itself, and 2 is the outer box. It is composed of an inner box 3 and a heat insulating material 4 filled between the outer box 2 and the inner box 3. Reference numeral 6 denotes a partition wall that partitions the inside of the refrigerator main body 1 into upper and lower sections, and defines a freezer compartment e and an upper and lower refrigerating compartment 7 in the upper part. Reference numeral 5 denotes a cooler for a refrigeration cycle housed in the back of the freezer compartment e, and 9 is a blower for forcing cold air cooled by the cooler 8 into the freezer compartment 6 and the refrigerator compartment 7.

Reference numeral 10 denotes a refrigeration cycle compressor housed at the rear of the bottom of the refrigerator body 1.

Next, 11 is a water supply device 12 provided in the refrigerator compartment 7 and a drive device 13 provided in the freezer compartment 6. Burnable ice tray 14
．． This is an automatic ice making device consisting of an ice storage box 16. Here, the water supply device 12 includes a detachable water supply tank 16 for supplying water for ice making, a water storage tray 1 for temporarily storing water of υ from the water supply tank 16, and a water storage tray 17 for temporarily storing water. It consists of a water supply pump 15 for pumping water and a water supply pipe 19. The ice tray 14 also has a support shaft 2 at its center.
0 is connected and fixed, and is pivotally supported by the drive device 13 and a frame 21 formed in a substantially U-shape so as to rotate and reverse around the support shaft 2o. In addition, 22 is the ice tray 1
4 is a stopper provided on a part of the outer shell of the drive device 13 in order to distort and deform the ice, and 23 is a stopper attached to the ice tray 14 so as to come into contact with the stopper 22. It is.

In this configuration, when the water tank 16 filled with water is set at a predetermined position by the user, the water storage tray 1
7 is filled with water, the water supply pump 18 is activated, and the water supply pipe 1
Water is poured into the ice tray 14 through the ice tray 9 . In this way, a predetermined amount of water is grooved in the ice tray 14 and is frozen by the cooling action in the freezer compartment e, thereby producing ice. When ice making is finished, the drive device 13 moves the ice tray 14 onto the support shaft 2.
The rotation is reversed around 0, and the plate 2 is placed on the stopper 22.
3 causes distortion and deformation of the ice tray 14, and the ice is released. Further, the ice that has been released falls into the ice storage box 15 provided below the ice tray 14 and is stored therein, and the ice tray 14 whose ice removal action has been completed is returned to its original state by the reverse rotation action of the drive device 13. do. After that, this action is repeated until the water in the water supply tank 16 is used up, and ice making and
It stores water.

On the other hand, an example of an automatic ice cream manufacturing device is shown in Japanese Utility Model Publication No. 52-18780.Although not particularly shown, a dedicated drive motor is provided in the freezing chamber to rotate stirring blades, and the ice cream inside the container is It is configured to stir Ainu cream and miknu to produce ice cream.

Problems to be Solved by the Invention However, in the ice making method of the automatic ice making device as described above, freezing of the water in the ice tray 14 when ice is generated is a problem.
Gas components, soluble salts, and insoluble impurities dissolved in the water move toward the center of the ice from the contact surface between the ice cube tray 14 and water and the contact surface between cold air and water. As a result, the ice becomes opaque with a cloudy center, and the purity is low and the taste is poor, resulting in ice that is not sensually suitable for use in beverages such as whisky. .

On the other hand, in recent years, eating habits have become more sophisticated and gourmet-oriented.

Coupled with the trend toward hand-made ice, the use of ice has expanded from its traditional use of simply cooling food and drinks to its use as a material for decorating dining tables, and automatic ice-making devices that can use large amounts of ice without any hassle. The need for this is also increasing.

It was also ranked 2nd among Japanese people's favorite things (NH
Although the number of chain stores that sell ice cream has recently increased, especially in urban areas, there is still a strong need to make homemade ice cream according to one's taste at home. It is thought that there is.

Against this background, it is conceivable to respond to these needs by equipping refrigerators with both automatic ice making and automatic ice cream production functions as a part of improving the functionality of refrigerators, but in the example mentioned above, automatic ice making is However, even if automatic ice cream production is performed, a dedicated drive device is required for each, increasing the product cost and also occupying space in the freezer compartment, reducing effective space. There was also a problem.

The present invention takes the above-mentioned problems into consideration and provides a refrigerator that can selectively use an automatic ice making device and an automatic ice cream manufacturing device.

Means for Solving the Problems In order to solve the above-mentioned problems, the refrigerator of the present invention has an ice-making tray placed in a heat-insulating tank provided in the freezer compartment with its top open and a heater provided at the bottom of the inside. A drive device is provided to rotate the drain trays, which are installed in parallel with the trays, around their respective support shafts, and below the drain trays is an automatic ice making device equipped with a drain tray and a drain pipe connected to the drain trays, and this drive device. The stirring device is equipped with a rotating body that is replaced by the helical ice cube tray at the bottom that swings repeatedly, and the heat insulating tank is replaced with the heat insulating tank whose top surface is open and the bottom surface has a curved shape that matches the movement trajectory of the stirring device. This is an automatic ice cream manufacturing device consisting of a container and is configured so that it can be used selectively.

According to the above-described configuration, when an automatic ice maker is used, when a predetermined amount of water in the water tank is supplied into the ice tray via the water storage tray and the water supply pipe, the present invention has a heat insulating effect due to the heat insulating tank. Due to the heating effect of the heater from the bottom, the cold air in the cooling chamber causes a unidirectional freezing effect from the ice surface downwards, and ice crystals are generated while gaseous components and impurities in the water are discharged into the water below. go. Next, when the drive device is activated when the ice reaches an appropriate thickness, the ice tray rotates and reverses to remove the ice, causing the ice to fall onto the draining tray, increasing the concentration of gaseous components and impurities. The unfrozen water is separated, drained, and drained through the lower drain pan and drain pipe. Next, when the draining tray loaded with ice is rotated and reversed by the driving device, highly transparent and pure ice falls into the ice storage box and is stored. On the other hand, when using an automatic ice cream making device, you can attach a stirring device to the driving device for the automatic ice making device, set an ice cream manufacturing container in place of the ice storage box, and operate the driving device. The cream mix (dough containing the ingredients) is cooled through a container and stirred by the swinging action of the stirring device, and at the same time, the mix is drawn in by the rotating action of the spiral rotating body, including air.
In addition, the ice crystals are crushed and made fine. Thereafter, as cooling continues, ice cream is produced over time.

EXAMPLE A refrigerator according to an example of the present invention will be described below with reference to FIGS. 1 to 10. It should be noted that the same reference numerals are given to the parts having the same configuration as in the prior art, and the explanation will be omitted, and the different parts will be explained.

1a is the refrigerator body, 24 is a partition wall containing a heat insulating material 26 inside, and has a freezer compartment 26° at the top and a refrigerator compartment 2 at the bottom.
7 is divided into sections. Reference numeral 28 denotes a concave-shaped heat insulating tank with an open top surface, which is placed on the partition wall 24, and includes an outer frame 29 made of resin, a metal plate 30 (for example, an aluminum plate) placed on the bottom of the concave portion, and the outer frame 29. ．． It is composed of a heat insulating material 31 surrounded by a metal plate 30 and a heater 32 fixed to the back surface of the metal plate 30 in a thermally conductive manner. Reference numeral 33 designates an ice tray whose outer shape is formed so as to overlap the inner surface of the heat insulating tank 28, a small compartment 34, a partition frame 36 that partitions the small compartment 34, and an ice tray formed on the partition frame to separate the small compartments 34. It is composed of a communication groove 36 that communicates with each other. 37 is the ice tray 33
A first support shaft 38 is connected and fixed to one end of the ice tray 33, and a second support shaft 39 is connected and fixed to one end of the ice tray 37. 4° is a drive device that rotates the first support shaft 3B and the second support shaft 39 to rotate the ice making tray 33 and the draining tray 37, and a drive motor 40a and its rotational force are provided inside. a plurality of reduction gears 40b for transmitting and the reduction gear 40b;
A magnet attached to the outer periphery of one of the gears) 40
A rotary position detecting device 4of consisting of two reed switches aod and 40e provided opposite to each other on the rotation locus of the magneto motor 40C and the magneto motor 40C is housed. The signal to switch between forward and reverse rotation is extracted.

Reference numeral 41 indicates that the ice tray 33 and the draining tray 3 are attached to the drive device 40.
7 to the first support shaft 38. This is a claim for pivotally supporting via the second support shaft 39.

Reference numeral 42.43 indicates a stopper provided on a part of the outer shell of the drive device 4o, and reference numeral 44.45 indicates a stopper provided on a part of the outer shell of the driving device 4o. 33 and draining plate 37, respectively. Next, reference numeral 46 denotes a drain plate provided below the drain plate 37, 47 a drain pipe connected to the drain plate 46, and heaters 48 and 49 are respectively disposed for thermal conduction.

Further, 6o is an ice storage box provided adjacent to the drain tray 46 below the drain tray 37 when it is in an inverted position.

Further, the drain pipe 47 passes through the heat insulating material 25 of the partition wall 24 and the heat insulating material 4 of the main body 1, and communicates with a machine room 61 provided at the bottom of the main body 1. Reference numeral 52 denotes an evaporator, which is composed of a heating plate 56 to which a high-temperature, high-pressure heating tube 54 connected from a compressor 63 of the refrigeration cycle is closely attached, and an evaporating plate 66 placed on the heating plate 66. . or,
67 is connected to the outlet of the drain pipe 4A and is connected to the evaporating dish 66.
It is a sump water conduit that guides water into the interior of the tank.

On the other hand, 58 is a water supply pipe through which water temporarily stored in the water storage tray 21 from the water supply tank 18 is supplied to the ice making tray 33 by the water supply pump 22. One end is connected to the water supply pump 22, and the other end is connected to the ice tray 33. It is opened so as to face the top surface of the ice making tray 33, and together constitutes an automatic ice making device 59. Further, 6o is a ventilation passage that is located in the freezer compartment 26 and guides cold air to the upper surface of the ice tray 33, and 61 is a ventilation passage that detects the temperature in the freezer compartment 26 and is connected to the blower 9. This is a temperature control device that controls operation and stop of the compressor 63.

Next, reference numeral 62 denotes a stirring device which is inserted and supported by the tip of the first support shaft 38 passing through the drive device 40 of the automatic ice making device 59, and is rotated by an arm portion 63, a column 64 and a pin 66. It is composed of a helical rotating body 66 provided at the bottom which is freely pivoted. The helical rotating body 66 includes a helical outer peripheral portion 67, a groove portion 6B, and a gear portion 69 at one end. 7o is automatic ice making device 5
This is a container for producing ice cream installed in place of the ice storage box 50 of No. 9, with an open top surface and a stirring device 62
A bottom wall 71 made of metal such as aluminum and having a curved surface shape that matches the motion locus of the helical rotating body 66, and a heat insulating material 72 inside.
, a gear line 74 installed on the bottom wall 71 opposite to the gear part 69 of the helical rotating body 66, and a gear line 74 for cooling the bottom wall 71 from the back side. It is comprised of a cold air introduction lower allotment for introducing cold air, and a cold air exhaust lower allotment for discharging the introduced cold air.

The drive device 40. Frame 41, stirring device 6
2. The container To constitutes an automatic ice cream manufacturing device 77. Further, 78 is a mix of ice cream (for example, egg yolk, fresh cream,
A dough made by mixing ingredients such as milk, vanilla essence, and granulated sugar.
).

In this configuration, the operation of the automatic ice making device 69 will be described first. When the water supply tank 18 filled with water is set in a predetermined position by the user, the valve 20 is pushed up, the water supply port 19 is opened, and the water storage tray 21 is filled with water. Thereafter, the filled water is pumped up by the water supply pump 22, and water starts to be supplied to the ice tray 33 via the water supply pipe 68.

When water is supplied to one of the subdivisions 34 of the ice tray 33, a predetermined amount of water is supplied to the other subdivisions 34 through the communication groove 36 (the predetermined amount of water is supplied, for example, by stipulating the operating time of the motor of the water supply pump 22, etc.) (performed by means of This state is shown in FIG. 3, where the draining tray 37 is in an inverted position away from the draining tray 46.

In this state, the blower 9 forces the cold air cooled by the cooler 8 through the ventilation path 69 onto the ice surface of the ice tray 33, thereby starting the cooling action. At the same time, the heating action of the heater 32 disposed on the bottom of the heat insulating tank 28 is started, and the metal plate 30 on the bottom is heated. Also, ice tray 33
Since the outer periphery of the ice tray 33 is surrounded by a heat insulating material 31 in the heat insulating tank 28, the cooling effect from the outer periphery is also suppressed, and the freezing effect is suppressed by the ice tray 33.
It progresses in one direction from above to below.

Therefore, if the freezing speed is appropriately slowed down (for example, 5 m
m/h) As ice formation progresses, gaseous components dissolved in the water and various impurities contained therein are precipitated outside the ice crystals and discharged into the unfrozen water below. The ice that is formed in this way over time has a very high degree of transparency.
The result is highly pure ice with few impurities. Then, as a predetermined cooling time elapses, ice of a required appropriate thickness (for example, 26 m) is generated. That is, as shown in FIG. 4, the state diagram shows a state in which highly transparent and pure ice coexists in the upper part of each small section 34 of the ice tray 33, and unfrozen water with reduced purity coexists in the lower part. It has become.

In this state, the drive device 4o operates to move the first support shaft 38. The second support shaft 39 starts rotating, and first the draining tray 37 is reversed and set above the drainage pressure 46, then the ice making tray 33 rotates and leaves the insulation tank 25, and is set first. It is turned over to a position close to the top of the draining plate 37 so as to overlap with it. At the same time, the heater 3 in the insulation tank 28
The heating action of 2 is stopped. Then, a backing plate 44 fixed to the ice tray 33 comes into contact with a stopper 42 provided on the drive device 4o, and the drive device 40 then applies rotational force to the ice tray 33, so that the ice tray 33 is distorted and deformed. The ice in the small section 34 is released and falls onto a grid-shaped draining tray 3 set below. At the same time, each small section 34
Unfrozen water with a high concentration of gaseous components and impurities remaining inside the draining pan 37 also flows out and falls. The ice and water are separated from each other by falling directly into the drain tray 46 instead of collecting in the water. That is, only ice with high transparency and purity is left on the draining tray 37. This state is shown in FIG. On the other hand, the unfrozen water that has fallen into the drain tray 46 is passed through the drain pipe 47 to the water conduit 57 and to the evaporator tray 66 of the evaporator 62 in the machine room 51.
Thereafter, the water drained into the evaporating dish 56 is evaporated by the heating action of the heating plate 66 that is brought into close contact with the heating tube 54 through which the high-temperature, high-pressure refrigerant gas from the compressor 53 flows. In addition, the drain plate 46. In order to prevent the flowing water from freezing in the drain pipe 47, the heaters 4B and 49 perform a heating action as appropriate.

On the other hand, since the ice thus left has moisture attached to a portion of its surface, it is cooled and dried as it is for a suitable period of time. Thereafter, as shown in FIG. 6, the drive device 4Q operates again to rotate the first support shaft 38 degrees and the second support shaft 39, and first the ice tray 33 is rotated and set in the heat insulating tank 28. On the other hand, the draining tray 37 is reversed from the top of the draining tray 46, and the contact plate 46 fixed to the draining NL37 above the ice storage box 6Q comes into contact with the stopper 43 provided on the drive device 4o. Then, as the drive device 40 further applies rotational force to the draining tray 3, the draining tray 37 is distorted and deformed, and the ice placed on the draining tray 37 is released, and the ice is removed from the ice storage box 6o provided below. It falls inside and is stored as ice. This state is shown in FIG.

In this way, after the water supply tank 18 is set by the user, these series of steps are automatically repeated until the water in the water supply tank 18 is used up.

As a result, a large amount of highly transparent and highly pure ice is stored in the ice storage box 5o, allowing the user to produce extremely sensually excellent ice for eating and drinking with little effort. It can be used at any time.

Next, the operation of the automatic ice cream manufacturing device 77 will be described. When the user puts the mix 78 into the container 70 and operates the drive device 4o, the drive motor 40a starts rotating, and the reduction gear 40b also rotates in conjunction with this. When the reduction gear 40b rotates, the first support shaft 38 connected to and passing through the final stage gear rotates, and the stirring device e2 starts swinging motion. Then, due to this swing movement, the pin 66
A helical rotating body 66 is connected to the gear part 69 and the container 7 with
Rotation begins when gear line 0 engages with gear line 4. Next, when the reduction gear 4ob continues to rotate and the magnet 40c comes to a position facing the reed switch 40d, the movement of the drive motor 40a is temporarily stopped by a signal from the reed switch 4od, and then starts rotating in the opposite direction. At this time, the helical rotating body is located at the ridgeline between the bottom wall 71 and side wall 73 of the container 70. Then, when the reduction gear 40b rotates in the opposite direction and the magnet 4oc comes to a position facing the reed switch 40e, the drive motor 40a stops temporarily due to the signal from the reed switch 40o, and then rotates in the forward direction again. is reversed. At this time, the helical rotating body 66 is connected to the container 70.
It is located on the other ridgeline of the bottom wall 71 and side wall 73. In this way, due to the action of the rotational position detection device 4of, the drive motor 40a is rotated at a constant rotation speed, and the reduction gear 4of is rotated.
will repeat forward and reverse rotation within a certain rotation angle,
In response to this movement, the stirring device 62 repeats swinging motions at a certain angle, and the helical rotating body 66 is busy rotating in accordance with the curved surface of the bottom wall 71 of the container 7o. Therefore, the mix 78 in the container 7o is mixed with the stirring device 6.
While being pushed away by the swing motion of step 2, it is caught in the rotational action of the helical rotating body 66. At this time, mix 7
A part of the rotor 8 is caught in the groove 68 of the helical rotating body 66, rotates, and flows backward and falls.

In addition, a part of the mixture 78 climbs over the support column 64 and flows backward from the upper stage and falls, and the space created between the mixes 78 is sealed, so that air is included in the mix 78. On the other hand, the remainder of the mix 78 is crushed within the gap between the outer periphery 67 of the helical rotating body 66 and the bottom wall 71 of the container 0, crushing the material and ice crystals and making it fine.

On the other hand, the cold air that has been sufficiently cooled by the cooler 8 is introduced toward the top opening of the container To by the forced ventilation action of the blower 9, and at the same time, the cold air is introduced toward the top opening of the container To through the cold air introduction lower door provided at the back of the lower part of the container 70. The air is introduced into the bottom space of the container 7o, and after mainly cooling the bottom wall 71, it is discharged through the cold air discharge lowers provided at the front of both sides of the lower part of the container 7Q. In this way, the container T.

For the mixer 8 inside, cooling is performed intensively from the upper surface by direct cold air introduction, from the lower surface by heat conduction cooling via the metal bottom wall 71, and from both the upper and lower surfaces. , the water in mix 78 rapidly freezes to form relatively small ice crystals.

Then, the material and ice crystals of the mix 78, which is in progress of freezing, are pulverized into fine particles by the swinging action of the stirring device 62 and the rotating action of the helical rotating body 66, and are stirred and mixed while being scraped off. As a result, the temperature of the mix 78 is uniformly lowered, and the ice crystals are dispersed and the viscosity increases, which further promotes the inclusion of air.At the same time, the stirring action causes the mix 78 to contain proteins and fat globules.

The crushed ice crystals, trapped air bubbles, etc. are dispersed and cooled to the freezing temperature range (approximately 16°C, although it varies depending on the material composition), and the mouthpiece remains smooth. , it becomes a so-called soft-serve ice cream state. A desired ice cream can be obtained by further advancing freezing from this state.

Therefore, the automatic ice making device 69 and the automatic ice cream manufacturing device 77 can be used in one refrigerator according to the user's choice, and the refrigerator can be highly functional at a low product cost. Moreover, the space within the freezer compartment 26 is not wasted.

Effects of the Invention As described above, the refrigerator of the present invention provides the following effects.

(1) A large amount of highly transparent and pure ice is automatically stored in the ice storage box by separating unfrozen water containing gaseous components and impurities discharged as ice continues to form. The user can use the ice, which is extremely sensually superior, for drinking and drinking at any time.

(2) Since the drive of the automatic ice making device is shared as the drive device of the automatic ice cream manufacturing device, a high-performance refrigerator having both functions can be provided at a low product cost.

(Suzuku) If the stirring blades and container cents for automatic ice cream manufacturing equipment were sold as an optional sales form, consumers who do not necessarily want both functions would not be forced to waste money, and consumers would There is a lot of room for functional selection.

(4) Ineffective space in the freezer compartment can be reduced, improving usability of the freezer compartment.

(6) Because the ice cream mix ingredients and ice crystals are crushed and mixed by the swinging action of the stirring blade and the rotating action of the helical rotating body, the ingredients and ice crystals are finely divided, resulting in a smooth, sunny surface with an appropriate air content. You can get high quality ice cream.

[Brief explanation of the drawing]

FIG. 1 is an enlarged perspective view of essential parts of an automatic ice-making device such as a refrigerator showing an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of a refrigerator equipped with the automatic ice-making device shown in FIG. 1, and FIG. A cross-sectional view showing the state in which water is supplied to the automatic ice making device shown in Fig. 1, and Fig. 4 is a sectional view showing the automatic ice making device shown in Fig.
Figure 6 is a cross-sectional view showing a state where ice making has progressed from the state shown in Figure 4. Figure 6 is a cross-sectional view showing a state where ice has been removed and water has separated from the state shown in Figure 4. Figure 6 is a cross-sectional view showing a state in which ice is stored from the state shown in Figure 5. 7 is a perspective view of the automatic ice cream manufacturing device; FIG. 8 is an enlarged sectional view of the automatic ice cream manufacturing device shown in FIG. 7; and FIG. 9 is an enlarged sectional view of the automatic ice cream manufacturing device shown in FIG. FIG. 7 is an enlarged cross-sectional view of the drive device of the automatic ice cream making device, FIG. 10 is a vertical cross-sectional view of the same refrigerator, FIG. 11 is a vertical cross-sectional view of a refrigerator equipped with a conventional automatic ice-making device, and FIG. 12 is a perspective view of the automatic ice making device. 18...Water tank, 21...Water storage tray,
22...Water pump, 26...Freezing room, 27...Refrigerating room, 28...Insulating tank,
32...Heater, 33...Ice tray, 3
7...Draining plate, 38...First support shaft, 39...Second support shaft, 40...Drive device, 46... ... Drainage tray, 47 ... Drain pipe, 50 ... Ice storage box, 58 ... Water supply pipe, 69 ... Automatic ice making device, 62 ... ... Stirring device, 66... Spiral-shaped rotating body, To...
... Container, 77 ... Automatic ice cream manufacturing device.

Claims (1)

[Claims] a freezer compartment, a refrigerator compartment, a heat insulating tank with an open top provided in the freezer compartment, a heater disposed around the bottom of the inner surface of the heat insulating tank, and ice making that polymerizes on the inner surface from the opening of the heat insulating tank. a tray, a first support shaft connected and fixed to one end of the ice tray, a draining tray installed in parallel with the ice tray, a second support shaft connected and fixed to one end of the draining tray; a drive device that rotates the ice tray about a support shaft and rotates the draining tray about the second support shaft; a drain tray provided below the drain tray; and a drive device connected to the drain tray. an ice storage box provided adjacent to the drainage tray; a water tank provided in the refrigerator compartment; a water storage tray for storing water from the water tank; and a water storage tray for pumping the water in the water storage tray. an automatic ice making device comprising a water supply pump, a water supply pipe connected to the water supply pump and guided to the top surface of the ice tray; and the ice making device, which is repeatedly swung by the drive device and has a helical rotating body at the bottom. An automatic ice cream manufacturing device is selectively provided with an agitation device that can be replaced with a plate, and a container that can be replaced with the insulated tank that has a curved bottom surface and an open top surface that follows the movement trajectory of the agitation device. A refrigerator configured so that it can be used for.