JP3340185B2 - Automatic ice making equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ice making apparatus for automatically producing tasteless, odorless and relatively transparent ice in a refrigerator or the like.

[0002]

2. Description of the Related Art Conventionally, in home refrigerators and the like,
The water supplied from the water supply device is stored in an ice tray to make ice,
2. Description of the Related Art An automatic ice making device that rotates and reverses an ice tray by a driving device after ice making to separate ice is widely used.

Hereinafter, the above-described conventional automatic ice making apparatus will be described with reference to FIGS.

[0004] Reference numeral 1 denotes a refrigerator body, which is composed of an outer box 2, an inner box 3, and a heat insulating material 4 filled between the outer box 2 and the inner box 3. Reference numeral 5 denotes a partition wall for partitioning the inside of the refrigerator main body 1 into upper and lower parts. The partition wall 5 defines a freezer compartment 6 at an upper portion and a refrigerator compartment 7 at a lower portion. Reference numeral 8 denotes a cooler of a refrigerating cycle provided on the back surface of the freezing room 6, and reference numeral 9 denotes a blower for forcibly blowing the cool air cooled by the cooler into the freezing room 6 and the refrigerating room 7.

[0005] Next, reference numeral 10 denotes an automatic ice maker provided in the freezing compartment 6, a driving device 11 having a built-in motor and a reduction gear group (not shown), and an ice maker having a support shaft 12 connected and fixed at the center. The tray 13 includes a frame 14 for supporting the ice tray 13 with the driving device 11.

Reference numeral 15 denotes a stopper provided on a part of the frame 14 for distorting the ice tray 13 so as to release ice, and 16 denotes the ice tray 13 so as to abut against the stopper 15. It is a patch attached to the top.

An ice storage box 17 is provided below the automatic ice maker 10. Reference numeral 18 denotes a water supply tank for storing water for ice making, which is detachably provided in a part of the refrigerator compartment 7. Reference numeral 19 denotes a water supply port of the water supply tank 18, which is opened and closed by a valve 20. Reference numeral 21 denotes a water receiving tray provided below the water supply port 19 of the water supply tank 18. When the water supply tank 18 is set with the water supply port 19 facing downward, the valve 20 is pushed up to open the water supply port 19. It is configured to be.

Reference numeral 22 denotes a water supply pump for pumping water received in the water receiving tray 21. Reference numeral 23 denotes a water supply pump connected to the water supply pump 22 so that an outlet thereof faces the ice tray 13 of the automatic ice maker 10. It is a water pipe arranged as follows.

The operation of the conventional automatic ice making apparatus 10 will be described. When the water tank 18 filled with water is set at a predetermined position by the user, the valve 20 is pushed up, the water supply port 19 is opened, and the water tray 21 is filled with water. Thereafter, the filled water is pumped up by a water supply pump 22 and injected into the ice tray 13 through a water supply pipe 23. The water filled in the ice tray 13 in a predetermined amount in this manner is frozen by the cooling action in the freezing compartment 6, and ice is generated.

When the ice making is completed, the ice tray 13 is rotated around the support shaft 12 by the rotation of the driving device 11, and the stopper plate 15 comes into contact with the stopper plate 16, whereby the ice tray 13 is twisted and deformed. And the ice in the ice tray 13 is separated. The ice that has been separated falls into the ice storage box 17 and is stored, and the ice tray 13 that has completed the ice separation operation returns to the original state by the reverse rotation operation of the driving device 11 again.

Thereafter, this operation is repeated until the water in the water supply tank 18 is used up to automatically perform ice making and ice storage.

In the above-described automatic ice making machine, the ice tray is cooled from the lower side and the upper side by cold air, so that the water stored in the ice tray freezes almost uniformly from the entire surface. For this reason, gas components in the water cannot escape, and the odor of the refrigerator is trapped in the air bubbles, resulting in opaque ice with a strange taste and smell at the center of the air. Therefore, the ice is not sensually suitable for use in drinking whiskey or for drinking such as juice. Therefore, recently, as disclosed in Japanese Patent Application Laid-Open No. Hei 3-158668, a transparent automatic ice making apparatus heats an upper surface of an ice tray, cools and freezes the upper surface of the ice tray, and applies vibration to the ice tray to easily escape bubbles in the liquid. As a result, automatic ice making machines that produce relatively transparent and tasteless and odorless ice have been devised.

[0013]

However, in the conventional automatic ice making machine for producing transparent ice, even if bubbles escape, minerals and silicon ions contained in the supplied water become oxides and precipitate on the upper surface of ice. However, when put into a drink or the like, the oxides become white powder and are discharged as insoluble substances from the ice, so that there is a problem that when drinking, the mood is harmed and the ice is not sensuously suitable. In addition, the ice tray of the conventional automatic ice making machine has a connecting groove formed to keep the level of supplied water constant. And it was difficult for the ice to separate, so a large force was required for ice removal. Further, there is a problem that the evaporating dish is easily deformed permanently in the twisting direction because the twisting is applied in one direction at the time of ice removal, and ice is not separated unless the twisting angle is increased.

The present invention has been made to solve the above-mentioned conventional problems, and can produce ice which is tasteless and odorless and has relatively high transparency.
It is another object of the present invention to provide an automatic ice making device in which the ice separating property between an ice tray and ice is improved.

[0015]

In order to achieve this object, an automatic ice making apparatus according to the present invention comprises an ice tray for storing water supplied from a water supply unit in a plurality of times and successively making ice, and an ice making apparatus after ice making. and a driving device for vertically inverted by rotating the ice tray for, to oscillate the ice tray by the driving device at the time of ice making, multiple water supply of the last round from the water supply device
During ice making of the supplied water, the rocking is stopped and the ice making is completed .

Further, the water supplied from the water supply device is stored.
An ice tray for making ice by swinging, and the direction of the swing axis of the ice tray
And a notch groove in the partition
Separate from the heating unit installed near the notch groove after ice making.
Driving device that turns the ice tray upside down for ice
The driving device is configured to swing the ice tray .

Further , the water supplied from the water supply device is stored.
An ice tray that makes ice while swinging, and up and down by turning in the forward direction
The ice tray is twisted by contacting the inverted part of the ice tray.
Stopper A that deforms and deforms, and reverses more than the swing angle
The ice making device is brought into contact with the contact portion of the ice tray rotated in the
A stopper B for twisting and deforming the plate,
Swing the ice tray and turn the ice tray forward for ice release after ice making.
A driving device that is turned upside down and turned upside down,
The driving device once moves the contact portion of the ice tray once after making ice.
Contact the stopper B, and then contact the stopper A.
It is configured to contact and separate ice .

[0018]

[Action] This arrangement was the removal of air bubbles facilitate <br/> by overlapping sequentially feed water and ice in a plurality of times ice tray with applying vibration to the freezing surface and the water surface by rocking during ice making, final After water injection, stop rocking to reduce foreign matter precipitation.
Relatively transparent ice tasteless and odorless by Ku can be made in good.

[0019] Further , in the partitioning portion of the ice tray in the direction of the swing axis.
A notch groove is provided and the heating unit attached near the notch groove delays the ice making on the upper surface, releases the connection between ice and ice, makes each ice independent, shapes the ice and makes an ice tray. Improves ice release from ice . Also, after ice making
Then, rotate the ice tray once more than the swing angle in the reverse direction.
Twist the ice tray and rotate the ice tray in the forward direction to
By twisting the inverted ice tray and releasing the ice, permanent deformation can be suppressed and the ice can be released with a small angle of twist.

[0020]

1 to 8 show an embodiment of the present invention.
It will be described according to the following. The structure for mounting the automatic ice making device to the refrigerator is the same as that of the conventional example, and the drawings and detailed description thereof are omitted.

First, the configuration of the automatic ice making apparatus 10 will be described with reference to FIGS. Reference numeral 11 denotes a drive unit, which is provided with a U-shaped frame 14 to which an ice tray 13 is attached. The motor 24 and the reduction gear mechanism 2 are provided inside the drive device 11.
5, and a support shaft 12 for the ice tray 13 are provided. The rotation of the motor 24 is reduced by a reduction gear mechanism 25 and transmitted to the support shaft 12. The ice tray 13 is made of resin, has a rectangular container shape with an open upper surface, and is partitioned into a plurality of small chambers. The ice tray 13 has a front central portion connected and fitted to the support shaft 12 and a rear central portion fitted rotatably to the support shaft 26. The drive device 11 connects the support shafts 12 and 26 with each other. It is rotated as an axis.

Numeral 15 denotes a stopper A provided on a part of the frame 14 for twisting and deforming the ice tray 13 at the time of normal rotation to perform ice separation, and reference numeral 27 denotes distortion at the time of reverse rotation of the ice tray 13. A stopper 16 is provided on the ice tray 13 so as to abut against the stopper A15 and the stopper B27.

The driving device 11 is provided with a horizontal position detection switch 40 for detecting the horizontal position of the ice tray 13 and a reversal position detection switch 41 for detecting the reversal position of the ice tray 13 near the support shaft 12. . A temperature sensor 42 is fixed to the bottom of the ice tray 13 with a heat insulating material 43,
The water temperature in the ice tray 13 is detected.

Reference numeral 44 denotes an upper surface of the ice tray 13 and side walls 45.
Is a partition heater for heating the vicinity of the cutout groove 48 of the center partition 47 of the ice tray 13 in the direction of the swing axis.

Next, the electric circuit shown in FIG. 4 will be described. Reference numeral 49 denotes a power outlet, which is connected to the water supply pump 22 via the normally open contact 51 of the first relay 50, and is separated from the heater A44 of the side wall heater of the ice tray 13 via the normally open contact 53 of the second relay 52. A control device (ice making control means) to which a heater heating unit B46 is connected and performs a series of ice making controls.
The primary side of a power transformer 55 in 54 is connected.
A power supply circuit 56 is connected to a secondary side of the power supply transformer 55. The control device 54 has, as inputs, a horizontal position detection switch 40 and an inversion position detection switch 41 of the ice tray 13, and a temperature sensor 42 provided on the ice tray 13.

One end of the horizontal position detection switch 40 is connected to a DC power supply Vcc, and the other end is grounded via a resistor R1 and connected to an input terminal a of a microcomputer 57. One end of the inversion position detection switch 41 is connected to a DC power supply Vcc, and the other end is grounded via a resistor R2 and connected to an input terminal b of the microcomputer 57.

The temperature sensor 42 is an NTC thermistor, and its electric resistance decreases as the temperature of the object to be detected increases.
Further, it has a negative temperature characteristic in which the electric resistance increases as the temperature decreases. One end of the temperature sensor 42 is connected to a DC power supply Vc.
The other end is grounded via a resistor R3 and connected to the input terminal f of the microcomputer 57.

The junction between the resistors R4 and R5 is connected to the input terminal g of the microcomputer 57.
The other end of the resistor R4 is connected to a DC power supply Vcc, and the other end of the resistor R5 is grounded. Resistance R6 and resistance R7
Is connected to the input terminal h of the microcomputer 57, and the other end of the resistor R6 is connected to the DC power supply V.
cc, and the other end of the resistor R7 is grounded. The junction between the resistors R8 and R9 is connected to the input terminal J of the microcomputer 57, and the other end of the resistor R8 is connected to the DC power supply Vcc.
Is grounded. The resistors R4 and R5 form a first reference voltage corresponding to an ice making start temperature (for example, -10.0 ° C), and the resistors R6 and R7 correspond to a second ice making temperature (for example, -13.0 ° C). A reference voltage is generated, and the resistors R8 and R9 are connected to the additional water ice completion temperature (for example, -15.
0 ° C.).

The output terminals c and d of the microcomputer 57 are connected to the motor 24 in the drive unit 11 via a motor drive circuit 58. The output terminal e is connected via a buffer 59 to a first relay 5 having a normally open contact 51.
0, and the output terminal i is connected via a buffer 60 to a second relay 52 having a normally open contact 53.

The automatic ice making apparatus configured as described above will be described with reference to the flowchart of FIG.

First, in the water supply step, when the water supply tank 18 filled with water is set at a predetermined position by the user, the valve 20 is pushed up, the water supply port 19 is opened, and the water receiving tray 21 is filled with water. . Then, at step 71, H is output to the output terminal e of the microcomputer 57 for a certain time, the water supply pump 22 is operated for a certain time, and a predetermined amount of water is supplied into the ice tray 13 through the water supply pipe 23.

In the ice making process, at step 72, a voltage signal based on the temperature detected by the temperature sensor 42 is compared with a first reference voltage corresponding to an ice making start temperature (for example, -10.0 ° C.). To determine if the water has reached 0 ° C. If the temperature detected by the temperature sensor 42 is lower than the ice making start temperature, in step 73, the side wall heater 44 and the partition heater 46 are turned on.

In step 74, H and L are output to the output terminals c and d of the microcomputer 57 for a fixed time A, respectively, and the driving device 1 is output via the motor driving circuit 58.
The motor 24 in 1 is normally rotated for a predetermined time A. Ice tray 1
3 rotates counterclockwise and reaches a position rotated a predetermined angle (for example, +20 degrees) from the horizontal position.

Subsequently, at step 75, L and H are applied to the output terminals c and d of the microcomputer 57, respectively.
Is output for a fixed time 2A, and the motor 24 is
Only reverse. The ice tray 13 swings clockwise and reaches a position rotated a predetermined angle (for example, -20 degrees) from a horizontal position.

Then, in step 76, the motor 24 is rotated forward again. When the ice tray 13 returns to the horizontal position in step 77 and the horizontal position detection switch 40 is turned on, the motor 24 is stopped in step 78. And step 7
After a lapse of a predetermined time B in step 9, at step 80, a voltage signal based on the temperature detected by the temperature sensor 42 is compared with a second reference voltage corresponding to an initial ice-making completion temperature (for example, -13.0 ° C.). The water in the dish 13 is completely frozen and
It is determined whether the following has occurred. If the temperature detected by the temperature sensor 42 is higher than the ice making completion temperature, step 7 is performed again.
Return to 4. As shown in FIGS. 6 (a) to 6 (d), the series of operations from step 74 to step 79 causes
Swings about the support shaft 12.

In this ice making process, the cool air cooled by the cooler 8 by the blower 9 passes through the ventilation passage below the ice tray 13 to cool the ice tray 13 from the bottom. Since the upper surface of the ice tray 13 is covered with a heat insulating material 29 and heated by the heating unit A44 of the side wall heater and the heating unit B46 of the partition heater, the water surface side hardly comes into contact with cold air and the temperature becomes high. The water flows from the notch groove 48 of the center partition 47 of the ice tray 13 in the direction of the rocking axis in the direction of the rocking, so that the water flow becomes a wave flow and delays the formation of ice on the water surface. Therefore, ice is formed sequentially from the bottom side of the ice tray, and the water surface side is formed last.
However, if the cooling from the lower part is carried out vigorously to freeze in a short time, the gas components dissolved in the water become bubbles and become trapped in the ice surface before rising by buoyancy and trapped in the ice and become opaque. It is easy to become ice. In this respect, in the case of the embodiment of the present invention, the movement of the water on the frozen surface due to the swing and the flow of the water flowing from the notch groove 48 of the center partition 47 of the ice tray 13 in the direction of the swing axis efficiently generated the strong wave flow. Bubbles are released from the frozen surface, lifted by buoyancy and released to the atmosphere from the water surface, which is not frozen, so that they are not trapped inside the ice. After the ice making progresses, in step 80, the temperature sensor 4
Comparing the voltage signal based on the detected temperature of No. 2 with a second reference voltage corresponding to the ice making completion temperature (for example, -13.0 ° C.)
It is determined whether or not the water in the ice tray 13 has been completely frozen to 0 ° C. or less. If the temperature detected by the temperature sensor 42 is lower than the ice-making completion temperature, in a step 81, I is output to the output terminal e of the microcomputer 57 for a certain time, the water supply pump 22 is operated for a certain time, and the ice tray is A predetermined amount of additional water is supplied into the inside 13. Thereafter, after the ice making further proceeds, at step 82, a voltage signal based on the temperature detected by the temperature sensor 42 and the ice making completion temperature (for example, -1)
(5.0 ° C.), and it is determined whether or not the added water in the ice tray 13 is completely frozen to 0 ° C. or less. If the temperature detected by the temperature sensor 42 is lower than the ice making completion temperature, in step 83, the heating unit A44 of the side wall heater and the heating unit B46 of the partition heater are turned off. At this point, since the temperature of the ice is still high, the ice making is continued for a sufficient time (time D) for the ice to cool to the freezer set temperature, and then the ice making process is terminated.

Next, the process proceeds to a de-icing step. In step 85, L and H are output to the output terminals c and d of the microcomputer 57 for a predetermined time E, respectively, and the motor 24 in the drive device 11 is rotated in the reverse direction through the motor drive circuit 58 for E time, so that the reduction gear mechanism 25 The ice tray 13 is supported by the support shaft 12
Is rotated in the direction of arrow B in FIG. When the support shaft 12 rotates more than the swing angle (for example, 20 degrees), the ice tray 13 is twisted due to the contact of the abutting portion 16 with the stopper B27, causing distortion and the ice in the ice tray 13 is incomplete. Is separated from the ice (see FIG. 7).

Next, at step 86, H and L are output to the output terminals c and d of the microcomputer 57, respectively, and the motor 24 in the drive unit 11 is rotated forward through the motor drive circuit 58, so that the reduction gear mechanism 25 Ice tray 13
Starts rotating about the support shaft 12 in the direction of arrow A in FIG. Then, in step 87, it is determined whether or not the ice stored in the ice storage box 17 is full. If not, in step 88, H and L are output to the output terminals c and d of the microcomputer 57, and the motor is driven. Circuit 58
, The motor 24 in the drive unit 11 continues to rotate normally, and the reduction gear mechanism 25 causes the ice tray 13 to rotate about the support shaft 12 in the direction of arrow A in FIG.

Then, the support shaft 12 is moved at a swing angle (for example, 2 degrees).
0 °) or more, the stopper 16
The ice tray 13 is twisted again on the opposite side due to the contact, and distortion is generated, and the ice in the ice tray 13 is completely separated, and the separated ice falls into the ice storage box 17 and is stored. .

In step 89, when the ice tray 13 reaches the reversing position and the reversing position detecting switch 41 is turned on, in step 90, L and H are output to the output terminals c and d of the macro computer 56, and the motor 24 is reversed. I do. Then, the ice tray 13 after the ice-removing action is going to return to the original state again. When the ice tray 13 returns to the horizontal position in step 91 and turns on the horizontal position detection switch 40, the motor 24 is stopped in step 92.

In step 87, it is determined whether or not the ice stored in the ice storage box 17 is full.
3, the output terminal c of the microcomputer 56;
L and H are output to d, respectively, and the motor 24 in the driving device 11 is reversed through the motor driving circuit 58. At step 94, the ice tray 13 returns to the horizontal position, and at step 95, it waits for the time F.

As described above, according to the present embodiment, the heating portion is heated by energizing the heater, so that the water surface side hardly comes into contact with cold air, and the formation of ice is delayed, and the ice is removed from the bottom side of the ice tray. It is formed sequentially, and the water surface side is formed last. The movement of the water on the frozen surface due to the swing and the water flow flowing from the notch groove 48 of the center partition 47 of the ice tray 13 in the direction of the swing axis causes bubbles generated efficiently by the strong wave flow to separate from the frozen surface. It rises by buoyancy and releases it to the atmosphere from the water surface that is not frozen, so it does not get trapped inside the ice. Therefore, transparent ice without turbidity can be produced in a relatively short time.

In addition, tap water and the like contain oxides such as silica in addition to calcium and magnesium, and when frozen from the lower surface, the ice crystals do not contain impurities. Impurities begin to precipitate in the water. Eventually, it becomes a white powdery foreign substance and adheres to the surface of the ice. This foreign substance was originally contained in drinking water and is not harmful, but when this water is used, white powder is generated, which is unpleasant and unsuitable for drinking.
In this regard, in the embodiment of the present invention, the foreign matter on the ice is covered with the additional water to freeze the ice for additional water supply, and the foreign matter is sealed with thin ice so that the foreign matter is not immediately generated at the time of use. Further, the foreign matter on the surface of the ice formed by the rocking method is dispersed more finely on a plane than the foreign matter formed by the conventional vibration method, so that it is fine and relatively easy to melt. For this reason, the generation of foreign matter is completely invisible by gradually melting out from the surface.

In this embodiment, two water injection steps are described. However, dividing the additional water supply into a plurality of times at any of the third and fourth times is not limited at all, and the swing is stopped after the last water injection. Performing the process does not require the deposition of foreign substances.

The heating section A44 of the side wall heater and the partition heater heating section B45 of the ice tray 13 not only heat the upper surface to suppress freezing of the upper surface and release gas in water to the atmosphere, but also have the following effects. The heating unit A44 of the side wall heater particularly heats the side wall immersed only at the time of swinging, thereby preventing freezing on the side wall, preventing the ice from being sharpened at the end, and adjusting the shape of the ice as well as the water at the time of deicing. Prevent chipping. The partition heater heating section B45 functions to prevent freezing of water that moves back and forth each time the rocker swings through the notch groove 48 of the center partition section 47 of the ice tray 13 in the direction of the swing axis. It not only improves the shape but also improves the ice release.

It is also possible to reverse the twisting stroke in the reverse rotation at any position at the time exceeding the swing angle. However, in order to detect the fullness of the ice, it is sufficient to roughly separate the ice in the reverse rotation as in the present embodiment.

[0047]

As described above, the automatic ice making device of the present invention
With a ice tray for storing sequentially ice water supplied a plurality of times from the water supply device, and a driving device for vertically inverted by rotating the ice tray for ice removal after ice, the at ice <br The ice tray is oscillated by the driving device , and the water is supplied from the water supply device.
During ice making of the last water supply of multiple water supply,
The ice making is stopped and ice making is completed.
Vibration is applied to the icing interface and water surface by rocking
Bubbles are removed by overlapping water supply and ice making sequentially
After the last water injection, stop rocking and deposit foreign matter
Less odor and odorless relatively transparent ice
Can be made. Further, another automatic ice making device of the present invention,
Stores water supplied from the water supply device and rocks it to make ice
The ice tray has a partition in the direction of the swing axis of the ice tray.
Provide a notch groove in the partition and near the notch groove
Heating unit attached to the ice tray for ice removal after ice making
A driving device for turning the head upside down.
The ice tray is rocked by the device.
Provide a notch groove in the partition in the direction of the dynamic axis and cut
The heating unit attached near the notch groove delays ice making on the top surface
Ice and disconnect ice from each other to make each ice independent
Shape and improve ice-separation between ice tray and ice
I do. Further, another automatic ice making device of the present invention is a water supply device.
Ice tray that stores the water supplied from it and makes ice while swinging
And an abutting portion of the ice tray, which is turned upside down by turning in the normal direction.
A stopper that twists and deforms the ice tray in contact with the ice tray
A, and the ice tray turned in the reverse direction by more than the swing angle.
A strike that abuts the abutment to twist and deform the ice tray
The ice tray is rocked during ice making, and separated after making ice.
Rotate the ice tray in the forward direction and turn it upside down for ice.
A driving device, the driving device comprising:
Once the abutment of the ice tray is in contact with the stopper B,
From which the ice is released by contact with the stopper A.
After making ice, once make the ice tray in the reverse
Rotate the ice tray to rotate the ice tray in the normal direction
By twisting the ice tray that is turned upside down and releasing the ice, permanent deformation can be suppressed and the ice can be released with a small angle of twist.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an automatic ice making device according to an embodiment of the present invention as viewed from behind.

FIG. 2 is a plan view of the apparatus.

FIG. 3 is a side view of the device.

FIG. 4 is an electric circuit diagram of the device.

FIG. 5 is an operation flowchart of the apparatus.

6 (a) is a cross-sectional view showing a stationary state of the ice tray, FIG. 6 (b) is a cross-sectional view showing a state where the ice tray is turned counterclockwise (forward rotation), and FIG. 6 (c) is a clockwise turn in the figure. Sectional view when returning to the original state (d) is a sectional view showing a state further rotated clockwise (reverse rotation)

FIG. 7 is a torsion state diagram of the device at the time of reverse rotation.

FIG. 8 is an operation diagram of the apparatus at the time of ice removal.

FIG. 9 is a cross-sectional view of a refrigerator equipped with a conventional automatic ice making device.

FIG. 10 is an enlarged perspective view of a main part of a conventional automatic ice making device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Automatic ice-making apparatus 11 Drive device 13 Ice tray 44 Heating part A 46 Heating part B 47 Partition part 48 Notch groove

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-103978 (JP, A) JP-A-50-97952 (JP, A) JP-A-4-28981 (JP, A) 260764 (JP, A) Japanese Utility Model Showa 50-129946 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F25C 1/00-1/12 F25C 1/16-5/18

Claims (3)

(57) [Claims] 1. A Preparations and ice tray for storing sequentially ice water supplied a plurality of times from the water supply device, and a driving device for vertically inverted by rotating the ice tray for ice removal after ice
When the ice making tray is rocked by the driving device during ice making ,
Of the multiple water supplies from the water supply device,
Automatic ice making equipment that stops rocking and completes ice making during ice making. 2. An ice tray for storing and oscillating water supplied from a water supply device to make ice, and having a partition in the direction of the swing axis of the ice tray, a notch groove provided in the partition, and a notch formed in the partition. a heating unit mounted in the vicinity of the groove, lack, and a driving device for vertically inverted by rotating the ice tray for ice removal after ice
With an automatic ice making apparatus characterized by swinging the ice tray by the drive device. 3. An ice tray for storing water supplied from a water supply device and making ice while oscillating, and turning upside down by rotating in a normal direction.
The ice tray is twisted by contact with the contact portion of the ice tray.
Stopper A that deforms only, and reverse direction more than the swing angle
The ice tray is brought into contact with the contact portion of the
A stopper B for torsional deformation;
Swing the dish and rotate the ice tray in the normal direction for ice release after ice making.
A driving device for rotating and reversing the upper and lower sides.
After the ice making, the device temporarily puts the contact portion of the ice tray on the slide.
After contacting the topper B, contact the stopper A
An automatic ice making device characterized by letting ice to separate .