Title:
Refrigerator and control method for the same
Kind Code:
A1


Abstract:
A control method of a refrigerator comprising an ice storing part storing and discharging ice cubes, an ice shaving unit shaving the ice cubes discharged from the ice storing part to make shaved ice, an ice transferring driving part supplying the ice cubes stored in the ice storing part to the ice shaving unit, and an ice shaving unit driving part driving the ice shaving unit to make the shaved ice. The method includes: setting on/off reference times for the ice transferring driving part so that the ice transferring driving part operates according to a predetermined operation period; storing final on/off times elapsed from a final operation period of the ice transferring driving part when the ice shaving unit driving part is stopped; and driving the ice transferring driving part for the final on/off times remaining from the final operation period, and then driving the ice transferring driving part according to the operation period when the ice shaving unit driving part is driven again.



Inventors:
Kim, Woo-sung (Gwangju-city, KR)
Lee, Sang-yun (Gwangju-city, KR)
Application Number:
11/589850
Publication Date:
05/31/2007
Filing Date:
10/31/2006
Assignee:
Samsung Electronics Co., Ltd. (Suwon-si, KR)
Primary Class:
Other Classes:
241/DIG.17, 62/137
International Classes:
F25C1/00
View Patent Images:



Primary Examiner:
DUKE, EMMANUEL E
Attorney, Agent or Firm:
STAAS & HALSEY LLP (WASHINGTON, DC, US)
Claims:
What is claimed is:

1. A control method of a refrigerator comprising an ice storing part storing and discharging ice cubes, an ice shaving unit shaving the ice cubes discharged from the ice storing part to make shaved ice, an ice transferring driving part supplying the ice cubes stored in the ice storing part to the ice shaving unit, and an ice shaving unit driving part driving the ice shaving unit to make the shaved ice, comprising: setting on/off reference times for the ice transferring driving part so that the ice transferring driving part operates according to a predetermined operation period; storing final on/off times elapsed from a final operation period of the ice transferring driving part when the ice shaving unit driving part is stopped; and driving the ice transferring driving part for final on/off times remaining from the final operation period, and then driving the ice transferring driving part according to the operation period when the ice shaving unit driving part is driven again.

2. The control method according to claim 1, further comprising: measuring on/off times of the ice transferring driving part driven according to the operation period when the ice shaving unit driving part is driven, and measuring new on/off times of the ice transferring driving part if the measured on/off times correspond to the operation period.

3. The control method according to claim 1, wherein the final on/off times elapsed from the final operation period of the ice transferring driving part are stored irrespective of power to the refrigerator being off.

4. The control method according to claim 1, wherein the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, and the method further comprising: driving the ice shaving unit driving part and the ice transferring driving part during an operation of the ice lever.

5. The control method according to claim 2, wherein the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, and the method further comprising: driving the ice shaving unit driving part and the ice transferring driving part during an operation of the ice lever.

6. The control method according to claim 3, wherein the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, and the method further comprising: driving the ice shaving unit driving part and the ice transferring driving part during an operation of the ice lever.

7. A refrigerator comprising: an ice storing part storing and discharging ice cubes; an ice shaving unit shaving the ice cubes discharged from the ice storing part to make shaved ice; an ice transferring driving part supplying the ice cubes stored in the ice storing part to the ice shaving unit; an ice shaving unit driving part driving the ice shaving unit to make the shaved ice; and: a control part setting on/off reference times for the ice transferring driving part so that the ice transferring part operates according to a predetermined operation period, storing final on/off times elapsed from a final operation period of the ice transferring driving part when the ice shaving unit driving part is stopped, and driving the ice transferring driving part for final on/off times remaining from the final operation period and then driving the ice transferring driving part according to the operation period when the ice shaving unit driving part is driven again.

8. The refrigerator according to claim 7, wherein the control part measures on/off times of the ice transferring driving part driven according to the operation period when the ice shaving unit driving part is driven, and measures new on/off times of the ice transferring driving part if the measured on/off times correspond to the operation period.

9. The refrigerator according to claim 7, wherein the control part stores the final on/off times elapsed from the final operation period of the ice transferring driving part irrespective of power to the refrigerator being off or on.

10. The refrigerator according to claim 7, further comprising a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, wherein the ice shaving unit driving part and the ice transferring driving part are driven during an operation of the ice lever.

11. The refrigerator according to claim 8, further comprising a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, wherein the ice shaving unit driving part and the ice transferring driving part are driven during an operation of the ice lever.

12. The refrigerator according to claim 9, further comprising a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, wherein the ice shaving unit driving part and the ice transferring driving part are driven during an operation of the ice lever.

13. A control method of a refrigerator comprising an ice storing part storing and discharging ice cubes, an ice shaving unit shaving the ice cubes discharged from the ice storing part to make shaved ice, an ice transferring driving part supplying the ice cubes stored in the ice storing part to the ice shaving unit, and an ice shaving unit driving part driving the ice shaving unit to make the shaved ice, comprising: setting on/off reference times for the ice transferring driving part making the shaved ice; driving the ice shaving unit driving part; driving the ice transferring driving part to be driven/stopped according to the on/off reference times; stopping the ice transferring driving part if the ice shaving unit driving part is stopped, and storing final on/off times of the ice transferring driving part; storing differences between the on/off reference times and the final on/off times; and driving the ice transferring driving part according to the stored differences when the ice shaving unit driving part is driven again.

14. The control method according to claim 13, further comprising driving the ice transferring part and the ice shaving unit driving part simultaneously.

15. The control method according to claim 13, wherein if the final on time of the ice transferring driving part is less than the on reference time, the ice transferring driving part is driven according to a difference between the on reference time and the final on time when the ice shaving unit driving part is driven again.

16. The control method according to claim 13, wherein if the final off time of the ice transferring driving part is less than the off reference time, the ice transferring driving part is stopped according to a difference between the off reference time and the final off time when the ice shaving unit driving part is driven again.

17. The control method according to claim 13, further comprising: operating a shaved ice operation switch; pushing an ice lever; and transferring the ice cubes discharged from the ice storing part to the ice shaving unit with a rotation blade disposed in a front side of the ice storing part.

18. The control method according to claim 14, further comprising: operating a shaved ice operation switch; pushing an ice lever; and transferring the ice cubes discharged from the ice storing part to the ice shaving unit with a rotation blade disposed in a front side of the ice storing part.

19. The control method according to claim 15, further comprising: operating a shaved ice operation switch; pushing an ice lever; and transferring the ice cubes discharged from the ice storing part to the ice shaving unit with a rotation blade disposed in a front side of the ice storing part.

20. The control method according to claim 16, further comprising: operating a shaved ice operation switch; pushing an ice lever; and transferring the ice cubes discharged from the ice storing part to the ice shaving unit with a rotation blade disposed in a front side of the ice storing part.

21. A control method of a refrigerator comprising: driving an ice shaving unit; and selectively transferring ice to the ice shaving unit during the driving of the ice shaving unit.

22. The control method according to claim 21, wherein the selectively transferring comprises: alternately transferring the ice during a first period and not transferring the ice during a second period that is longer than the first period.

23. The control method according to claim 21, wherein the selectively transferring comprises driving an ice transferring driving part independent of the driving of the ice shaving unit.

24. The control method according to claim 22, further comprising: determining whether an ice operation switch is in an on state, wherein the selectively transferring comprises selectively transferring if determined that the ice operation switch is in the on state, wherein an incomplete one of the first or second periods is divided between subsequent on states of the ice operation switch.

Description:

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of Korean Patent Application No. 10-2005-0108434, filed on Nov. 14, 2005, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a refrigerator and a control method therefor, and more particularly, to a refrigerator and a control method therefor making and supplying shaved ice.

2. Description of the Related Art

Generally, a refrigerator includes a refrigerating compartment and a freezing compartment preserving various foods in an optimum state for a long period. The refrigerating compartment preserves refrigerated foods such as vegetables, fruits and the like which should be preserved above the freezing point, and the freezing compartment preserves frozen foods such as fish, meat and the like which should be preserved below the freezing point.

The freezing compartment is provided with an ice maker making ice cubes having a predetermined size by using cool air circulating through the freezing compartment, and an ice storing part storing the ice cubes made by the ice maker. The ice cubes stored in the ice storing part are discharged to the exterior in a cubic ice state or a crushed ice state, and the configuration of the ice storing part is disclosed in Korean Patent Application No. 1998-49615.

However, in the conventional refrigerator, there is no ice shaving unit shaving ice cubes made by the ice maker to shaved ice, and accordingly, it is difficult for a user to obtain the shaved ice.

Also, although the conventional refrigerator includes the ice shaving unit interlocking with the ice storing part, in the conventional refrigerator, an ice transferring motor of the ice storing part and an ice shaving motor driving the ice shaving unit are simultaneously turned on/off to make the shaved ice, as illustrated in FIG. 7.

In the case of making the shaved ice with the conventional refrigerator, when the ice shaving motor is driven, the ice transferring motor is simultaneously driven and supplies ice cubes to the ice shaving unit. When the ice shaving motor is stopped, the ice transferring motor is simultaneously stopped.

Since the ice transferring motor and the ice shaving motor are simultaneously stopped, the ice shaving motor may be stopped in the state that the ice cubes discharged from the ice storing part remain in the ice shaving unit. Thus, when the ice shaving unit is driven again, since the predetermined amount of ice cubes is supplied to the ice shaving unit from the ice storing part, the ice shaving unit overflows with the ice cubes. Accordingly, the ice cubes supplied to the ice shaving unit may be obtained from the ice shaving unit, and relevant parts may be damaged. Also, when that the ice shaving unit is again driven after the ice shaving unit is stopped with the ice remaining therein for a long time, the ice shaving unit may be damaged by the ice frozen thereto.

SUMMARY OF THE INVENTION

Accordingly, it is an aspect of the present invention to provide a refrigerator and a control method thereof capable of obtaining the desired amount of shaved ice, and preventing ice overflow and damage of relevant parts due to an excessive supply of ice cubes.

Additional aspects and/or advantages of the invention will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the invention.

The foregoing and/or other aspects of the present invention can be achieved by providing a control method of a refrigerator comprising an ice storing part storing and discharging ice cubes, an ice shaving unit shaving the ice cubes discharged from the ice storing part to make shaved ice, an ice transferring driving part supplying the ice cubes stored in the ice storing part to the ice shaving unit, and an ice shaving unit driving part driving the ice shaving unit to make the shaved ice, comprising: setting on/off reference times for the ice transferring driving part so that the ice transferring driving part operates according to a predetermined operation period; storing final on/off times elapsed from a final operation period of the ice transferring driving part when the ice shaving unit driving part is stopped; and driving the ice transferring driving part for final on/off times remaining from the final operation period, and then driving the ice transferring driving part according to the operation period when the ice shaving unit driving part is driven again.

According to an aspect of the present invention, the control method further comprises: measuring on/off times of the ice transferring driving part driven according to the operation period when the ice shaving unit driving part is driven, and measuring new on/off times of the ice transferring driving part if the measured on/off times correspond to the operation period.

According to an aspect of the present invention, the final on/off times elapsed from the final operation period of the ice transferring driving part are stored irrespective of power to the refrigerator being on or off.

According to an aspect of the present invention, the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, and the method further comprises driving the ice shaving unit driving part and the ice transferring driving part during an operation of the ice lever.

According to an aspect of the present invention, the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, and the method further comprising driving the ice shaving unit driving part and the ice transferring driving part during an operation of the ice lever.

According to an aspect of the present invention, the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, and the method further comprises driving the ice shaving unit driving part and the ice transferring driving part during an operation of the ice lever.

The foregoing and/or other aspects of the present invention can also be achieved by providing a refrigerator comprising an ice storing part storing and discharging ice cubes; an ice shaving unit shaving the ice cubes discharged from the ice storing part to make shaved ice; an ice transferring driving part supplying the ice cubes stored in the ice storing part to the ice shaving unit; and an ice shaving unit driving part driving the ice shaving unit to make the shaved ice; and a control part setting on/off reference times for the ice transferring driving part so that the ice transferring part operates according to a predetermined operation period, storing final on/off times elapsed from a final operation period of the ice transferring driving part when the ice shaving unit driving part is stopped, and driving the ice transferring driving part for on/off times remaining from the final operation period and then driving the ice transferring driving part according to the operation period when the ice shaving unit driving part is driven again.

According to an aspect of the present invention, the control part measures on/off times of the ice transferring driving part driven according to the operation period when the ice shaving unit driving part is driven, and measures new on/off times of the ice transferring driving part if the measured on/off times correspond to the operation period.

According to an aspect of the present invention, the control part stores the final on/off times elapsed from the final operation period of the ice transferring driving part irrespective of power to the refrigerator being on or off.

According to an aspect of the present invention, the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, wherein the ice shaving unit driving part and the ice transferring driving part are driven during an operation of the ice lever.

According to an aspect of the present invention, the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, wherein the ice shaving unit driving part and the ice transferring driving part are driven during an operation of the ice lever.

According to an aspect of the present invention, the refrigerator further comprises a shaved ice operation switch driving the ice shaving unit driving part and the ice transferring driving part to make the shaved ice, and an ice lever to discharge the ice, wherein the ice shaving unit driving part and the ice transferring driving part are driven during an operation of the ice lever.

The foregoing and/or other aspects of the present invention can be also achieved by providing a control method of a refrigerator comprising an ice storing part storing and discharging ice cubes, an ice shaving unit shaving the ice cubes discharged from the ice storing part to make shaved ice, an ice transferring driving part supplying the ice cubes stored in the ice storing part to the ice shaving unit, and an ice shaving unit driving part driving the ice shaving unit to make the shaved ice, comprising: setting on/off reference times for the ice transferring driving part making the shaved ice; driving the ice shaving unit driving part; driving the ice transferring driving part to be driven/stopped according to the on/off reference times; stopping the ice transferring driving part if the ice shaving unit driving part is stopped, and storing final on/off times of the ice transferring driving part; storing differences between the on/off reference times and the final on/off times; and driving the ice transferring driving part according to the stored differences when the ice shaving unit driving part is driven again.

According to an aspect of the present invention, the ice transferring part and the ice shaving unit driving part are simultaneously driven.

According to an aspect of the present invention, if the final on time of the ice transferring driving part is less than the on reference time, the ice transferring driving part is driven according to a difference between the on reference time and the final on time when the ice shaving unit driving part is driven again.

According to an aspect of the present invention, if the final off time of the ice transferring driving part is less than the off reference time, the ice transferring driving part is stopped according to a difference between the off reference time and the final off time when the ice shaving unit driving part is driven again.

According to an aspect of the present invention, the control method further comprises: operating a shaved ice operation switch; pushing an ice lever; and transferring the ice cubes discharged from the ice storing part to the ice shaving unit with a rotation blade disposed in a front side of the ice storing part.

According to an aspect of the present invention, the control method further comprises: operating a shaved ice operation switch; pushing an ice lever; and transferring the ice cubes discharged from the ice storing part to the ice shaving unit with a rotation blade disposed in a front side of the ice storing part.

According to an aspect of the present invention, the control method further comprises: operating a shaved ice operation switch; pushing an ice lever; and transferring the ice cubes discharged from the ice storing part to the ice shaving unit with a rotation blade disposed in a front side of the ice storing part.

According to an aspect of the present invention, the control method further comprises: operating a shaved ice operation switch; pushing an ice lever; and transferring the ice cubes discharged from the ice storing part to the ice shaving unit with a rotation blade disposed in a front side of the ice storing part.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or other aspects and advantages of the prevent invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a front view illustrating a refrigerator having an open portion, according to an embodiment of the present invention;

FIG. 2 is a combined perspective view illustrating an ice storing part and an ice shaving unit of FIG. 1;

FIG. 3 is a side view illustrating a dispenser of FIG. 1;

FIG. 4 is a control block diagram of a refrigerator according to an embodiment of the present invention;

FIG. 5 is a control period diagram of a refrigerator according to an embodiment of the present invention;

FIG. 6 is a control flowchart of a refrigerator according to an embodiment of the present invention; and

FIG. 7 is a control period diagram of a conventional refrigerator.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Reference will now be made in detail to the embodiment of the present invention, an example of which is illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiment is described below so as to explain the present invention by referring to the figures.

As shown in FIGS. 1 to 3, a refrigerator according to an exemplary embodiment of the present invention is a side by side type and includes a freezing compartment 5, a freezing compartment door 9, an ice storing part 21 provided to the freezing compartment 5, a dispenser 41, and an ice shaving unit 61 shaving ice cubes discharged from the ice storing part 21 thereby making shaved ice.

A refrigerating compartment 3 and the freezing compartment 5 are divided left and right by a middle partition formed to a main body 1. A refrigerating compartment door 7 and the freezing compartment door 9 are provided to respectively open/close front opening parts of the refrigerating compartment 3 and the freezing compartment 5. Door guards 11 are disposed up and down an inner side of the doors 7 and 9 to accommodate bottles or the like. A plurality of shelves 13 are disposed up and down in an upper portion of the refrigerating compartment 3 formed in a right side of the main body 1 to divide the refrigerating compartment 3, and a plurality of drawers 15 are provided in a lower portion of the refrigerating compartment 3.

The ice storing part 21 is provided in an upper portion of the freezing compartment 5 to store the ice cubes made in an ice making compartment (not shown) which is supplied with water from the outside and makes the ice cubes.

Referring to FIG. 2, the ice storing pat 21 includes an ice storing container 23 formed with an opening 25, an ice transferring driving part 27 transferring the ice cubes stored in the ice storing container 23 to the ice shaving unit 61, and a front cover 31 formed with a first discharging part 31a and a second discharging part 31b respectively guiding the ice cubes discharged from the opening 25 to the ice shaving unit 61 and an ice duct 51. Also, the ice storing part 21 includes a rotation blade 33, a stationary blade 35, and levers 37a and 37b provided at a side of the opening 25.

The ice transferring driving part 27 includes a rotation body 28 discharging the ice cubes stored in the ice storing container 23 into the opening 25 to transfer the ice cubes to the ice shaving unit 61, and an ice transferring motor 29 rotating the rotation body 28.

The levers 37a and 37b are rotatably provided to the ice storing container 23, and respectively open/close the first discharging part 31a and the second discharging part 31b.

The freezing compartment door 9 is provided with the dispenser 41 receiving the ice cubes of the ice storing part 21 from the outside, and the ice duct 51 guiding the shaved ice discharged from a shaved ice discharging part 67 to the dispenser 41.

The dispenser 41 includes an operation panel 43 for selection of an ice type and input of a control command, an ice lever 45 for ice discharge, and a water lever 47 for water discharge. The operation panel 43 is provided with a shaved ice operation switch 49 (FIG. 4) driving the ice transferring driving part 27 and an ice shaving unit driving part 75.

The ice shaving unit 61 includes a stationary tray 65 provided with the shaved ice discharging part 67, a blade (not shown) provided at the shaved ice discharging part 67, and a rotation tray 71 rotatably combined with the stationary tray 65.

The ice shaving unit driving part 75 rotates the rotation tray 71 of the ice shaving unit 61 to make the shaved ice.

When ice cubes are supplied to the stationary tray 65 connected with the first discharging part 31a, the ice cubes are shaved by the blade that is rotated by the rotation tray 71 to be discharged through the shaved ice discharging part 67. The discharged shaved ice is discharged to the dispenser 41 through the ice duct 51.

The refrigerator includes a control part 81 setting on/off reference times so that the ice transferring driving part 27 has a predetermined operation period, storing final on/off times elapsed from a final operation period of the ice transferring driving part 27 when the ice shaving unit driving part 75 is stopped, and driving the ice transferring driving part 27 for the remaining final on/off times of the final operation period and then driving the ice transferring driving part 27 according to the operation period when the ice shaving unit driving part 75 is driven again.

Also, when the ice shaving unit driving part 75 is driven, the control part 81 measures on/off times of the ice transferring driving part 27 driven according to the operation period and measures new on/off times of the ice transferring driving part 27 if the measured on/off times of the ice transferring driving part 27 correspond to the on/off reference times of the operation period.

Also, the control part 81 stores the final on/off times elapsed from the final operation period of the ice transferring driving part 27 irrespective of the power being off.

Also, the control part 81 drives the ice shaving unit driving part 75 and the ice transferring driving part 27 during an operation time of the shaved ice operation switch 49.

Referring to FIGS. 4 to 6, a control method of discharging the shaved ice for the refrigerator with the above configuration will be described.

As shown in FIG. 5, at first, on reference time T1,ref and off reference time T2,ref are set to the control part 81 so that the ice transferring driving part 27 is driven according to a predetermined operation period T1,ref+T2,ref (S10). Here, the on reference time T1,ref is the time for which the ice transferring driving part 27 is driven to supply the ice cubes to the ice shaving unit driving part 75, and the off reference time T2,ref is the time for which the ice transferring driving part 27 is stopped so as not to supply the ice cubes thereto. The off reference time T2,ref is greater than the on reference time T1,ref, and accordingly, the amount of ice cubes to be shaved by the ice shaving unit driving part 75 may be smaller than the amount of ice cubes supplied by the ice transferring driving part 27. This prevents ice overflow and damage of relevant parts due to an excessive supply of the ice cubes.

The on/off reference times T1,ref and T2,ref may be set before the refrigerator is initially driven, but alternatively, the on/off reference times T1,ref and T2,ref may be set by a user while the refrigerator is in use.

Then, the user operates the shaved ice operation switch 49 to obtain the shaved ice from the dispenser 41 (S20), and pushes the ice lever 45 with a container to contain the shaved ice (S25). Then, the control part 81 drives the ice shaving unit driving part 75 and the ice transferring driving part 27 according to an operation of the ice lever 45. While operating the ice lever 45, the ice shaving unit driving part 75 is continuously driven, and the ice transferring driving part 27 drives or stops according to the operation period T1,ref+T2,ref. On the other hand, in the case that the user does not operate the shaved ice operation switch 49 and the ice lever 45, the control part 81 does not drive the ice shaving unit driving part 75 and the ice transferring driving part 27 (S30 and S40).

When the ice shaving unit driving part 75 is driven (S50), the control part 81 measures on/of times T1 and T2 of the ice transferring driving part 27 driven according to the operation period T1,ref+T2,ref (S60), and then stores the measured on/off times T1 and T2(S70).

Then, the control part 81 compares the stored on/off times T1 and T2 with the on/off reference times T1,ref and T2,ref (S80).

While the ice lever 45 is pushed, if the measured on time T1 is smaller than the on reference time T1,ref, the control part 81 drives the ice transferring driving part 27 until the on reference time (S90). However, if the measured on time T1 is greater than the on reference time T1,ref, the control part 81 stops the ice transferring driving part 27 (S100).

Then, in the state that the ice transferring driving part 27 is stopped, the control part 81 measures off time T2 of the ice transferring driving part 27, and compares the measured off time T2 with the off reference time T2,ref (S110). If the measured off time T2 is greater than the off reference time T2,ref, that is, if the measured on/off times T1 and T2 are greater than the operation period T1,ref+T2,ref, on time T1 of the ice transferring driving part 27 is measured again. That is, on/off times of the ice transferring driving part 27 are remeasured (S120).

The ice shaving unit driving part 75 shaves the ice cubes periodically supplied by the ice transferring driving part 27 and discharges the shaved cubes through the dispenser 41.

If the user releases the container from the ice lever 45 to stop obtaining the shaved ice, the control part 81 stops the ice shaving unit driving part 75 and the ice transferring driving part 27 simultaneously.

When the ice shaving unit driving part 75 and the ice transferring driving part 27 are stopped, the control part 81 measures and stores final on/off times X and Y elapsed from a final operation period of the ice transferring driving part 27. The control part 80 stores the final on/off times X and Y elapsed from the final operation period of the ice transferring driving part 27 irrespective of the power off.

Then, the user again operates the ice lever 45 to obtain the shaved ice, the control part 81 again drives the ice shaving unit driving part 75 and the ice transferring driving part 27 based on the operation of the ice lever 45.

Then, the control part 81 drives or stops the ice transferring driving part 27 for the remaining times T1,ref−X and T2,ref−Y, which are subtracted from the on/off reference times by the final on/off times X and Y, and then drives the ice transferring driving part 27 according to the operation period. For example, as illustrated in FIG. 5, in a second operation of the ice shaving unit driving part 75, the control part 81 drives the ice transferring driving part 27 to supply the ice cubes to the ice shaving unit driving part 75 for time T1,ref−X. Also, in a third operation of the ice shaving unit driving part 75, the control part 81 stops the ice transferring driving part 27 for time T2,ref−Y, and then drives the ice transferring driving part 27 according to the operation period T1,ref+T2,ref.

With this configuration, the ice transferring driving part 27 can supply the regular amount of the ice cubes to the ice shaving unit driving part 75 irrespective of the operation of the ice shaving unit driving part 75 according to the operation method.

Accordingly, the refrigerator and the control method thereof can allow the user to obtain the desired amount of the shaved ice, and prevent an excessive supply of the ice, and thereby preventing the ice overflow and damage of relevant parts.

Although an embodiment of the present invention has been shown and described, it would be appreciated by those skilled in the art that changes may be made in this embodiment without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.