JP2008096021A - Refrigerator-freezer with automatic ice maker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of surely detecting existence or nonexistence of an ice tray at low costs without using an infrared ray sensor, a switch and the like, in the refrigerator with an automatic ice maker having the detachable ice tray. <P>SOLUTION: This refrigerator-freezer with the automatic ice maker comprises the detachable ice tray 16, an ice separating mechanism 15 and a control portion for controlling the ice separating mechanism 15, and the control portion is provided with a calculating portion for calculating a rate of change of a consumed current value of an ice separating motor 15a disposed in the ice separating mechanism 15. As the rate of change of the consumed current value becomes less than a specific value in rotating the ice separating motor 15a from a horizontal position to an ice separating position, when the ice tray 16 is not mounted on the ice separating mechanism 15, demounting of the ice tray 16 from ice separating mechanism 15 can be judged. Further when a current value is constantly more than the specific value in rotating the ice separating motor 15a from the horizontal position to the ice separating position, the abnormality in the ice separating mechanism 15 is judged. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a refrigerator-freezer with an automatic ice making device, and more particularly, to control for appropriately cleaning the automatic ice making device.

  In recent years, an increasing number of consumers want to wash an ice tray of an automatic ice maker installed in a refrigerator. However, the ice tray of the automatic ice making device has a wired temperature sensor closely attached to its bottom surface to determine whether the water supplied into the ice tray has become ice, so it is structurally removed, It has a structure that cannot be installed. Therefore, what can detect the state of the water supplied to the ice tray without contact is desired. As an example, an automatic ice making apparatus including an infrared sensor that detects infrared rays emitted from water is disclosed (for example, , See Patent Document 1).

  Hereinafter, the conventional refrigerator-freezer with an automatic ice making device will be described with reference to the drawings.

  FIG. 5 is a diagram showing a configuration of a conventional automatic ice making device described in Patent Document 1. As shown in FIG. As shown in FIG. 5, a tank 1 for storing water, a water supply pipe 2 for sucking water from the tank 1, a water supply pump 3 for pumping water from the tank 1, and a water supply pipe 2 from the tank 1, An ice making tray 4 for accumulating water supplied by the water supply pump 3 to make ice, an ice removing mechanism 5 for rotating the ice making plate 4 to release ice, an ice storage box 6 for storing the deiced ice, An infrared sensor 7 for measuring the temperature of water supplied to the ice tray 4 disposed above the ice tray 4, and a determination means for detecting the completion of ice making and the water level of the ice tray 4 from the output signal of the infrared sensor 7. 8. An ice making completion judging means 9 for detecting completion of ice making, and a water level judging means 10 for detecting the water level of the water supplied to the ice tray 4.

  The operation of the conventional automatic ice making device configured as described above will be described below.

  First, when water of about 5 ° C. is supplied from the tank 1 to the ice tray 4, the ratio of the water surface area in the light receiving area of the infrared sensor 7 increases, the output signal of the infrared sensor 7 increases, and the water supply reaches its peak when the water supply is completed. Reach. Thereafter, the water in the ice tray 4 is cooled, the temperature is lowered, and the output signal of the infrared sensor 7 is also lowered. When the temperature drops to near 0 ° C., the temperature thereafter stabilizes at around 0 ° C. for a while, and then the temperature starts decreasing again. When the temperature is below the ice making completion determination temperature value, ice making is completed.

  The change in the output signal of the infrared sensor 7 after the water supply to the ice tray 4 is completed is because the infrared sensor 7 directly measures the infrared energy related to the temperature generated from the water and ice. The temperature of water and ice itself can be measured.

In this way, the state change of the water in the ice tray 4 can be detected in a non-contact manner, so that there is no need to attach a wired temperature sensor to the bottom surface of the ice tray, and the ice tray can be removed and attached.
JP 2002-295931 A

  However, the above-described conventional technique does not disclose means for recognizing that the ice tray has been actually removed or has been attached from the removed state.

  The present invention solves the above-described conventional problems, and an object thereof is to provide an automatic ice making device that enables removal and attachment of an ice tray and can recognize the presence or absence of the ice tray by rational means. .

  In order to solve the above-mentioned conventional problems, the refrigerator-freezer with an automatic ice making device of the present invention stores the water supplied from the water supply device in an ice making tray installed in the freezer compartment, and makes the ice making plate after ice making. An ice removing mechanism for separating ice from the ice tray, a temperature sensor attached in the vicinity of the ice removing mechanism, an ice storage box disposed below the ice tray to store ice, and the ice removing mechanism. The ice making tray can be freely removed from the ice removing mechanism, and an ice making cleaning switch operated by the user when cleaning the ice making tray, In the refrigerator-freezer with an automatic ice making device that has an ice making cleaning completion switch that is operated when the ice making tray is attached to the ice removing mechanism after the ice tray is cleaned, the control unit is provided inside the ice removing mechanism. De-icing A comparison unit for comparing whether the current consumption value of the data is equal to or greater than a certain value and a calculation unit for calculating a rate of change of the current consumption value of the ice removal motor, and rotating the ice removal motor to the ice removal position When the rate of change of the current consumption value of the ice removing motor at this time is equal to or less than a certain value, it is determined that the ice tray is removed.

  This eliminates the need for a switch for detecting the presence or absence of an ice tray, thereby reducing the cost and improving the reliability of detecting the presence or absence of the ice tray.

  The refrigerator with an automatic ice making device of the present invention is an automatic ice making device in which an ice tray can be removed. The control unit that controls the ice removing mechanism moves the ice removing motor provided in the ice removing mechanism from the horizontal position to the ice removing position. When the rate of change of the current consumption value when rotating is less than a certain value, it is determined that the ice tray is removed from the ice removing mechanism, whereby the ice tray is attached to the ice removing mechanism. If it is not attached, even if the ice motor is rotated, there is almost no change in the current consumption value of the ice motor, so it is determined that the ice tray has been removed from the ice mechanism, and the user It can be informed that the ice tray is not attached.

  Further, the refrigerator / freezer with an automatic ice making device according to the present invention is configured to detect the presence of an ice tray when the deicing motor stops operating due to foreign matter entering the deicing mechanism. When the motor is rotated from the horizontal position to the deicing position, the current consumption value is always higher than usual, so the current consumption value from the start of the rotation operation of the deicing motor to the end of the rotation operation is always constant. If the value is equal to or greater than the value, it is determined that an abnormality has occurred in the deicing mechanism, and it is not determined that the ice tray has been removed. Therefore, it is not determined that the ice tray has been accidentally removed. The user can be notified of an abnormality in the deicing mechanism.

  According to the first aspect of the present invention, the water supplied from the water supply apparatus is stored in an ice making tray installed in a freezer compartment to make ice, and after ice making, the ice making tray is inverted to separate the ice from the ice making tray. A mechanism, a temperature sensor mounted in the vicinity of the deicing mechanism, an ice storage box disposed below the ice tray to store ice, and a control unit for controlling the deicing mechanism, and the ice tray The ice making mechanism can be freely removed from the ice removing mechanism, and an ice making cleaning switch that is operated when a user performs the washing of the ice making tray, and the user completes the washing of the ice making tray and performs the ice removing. In the refrigerator refrigerator with an automatic ice making device having an ice making cleaning completion switch operated when the ice tray is attached to the mechanism, the control unit has a constant current consumption value of the ice removing motor provided in the ice removing mechanism. Compare whether or not A comparison unit and a calculation unit for calculating a rate of change of the current consumption value of the deicing motor, and a rate of change of the current consumption value of the deicing motor when the deicing motor is rotated to the deicing position If the value is less than the value, it is determined that the ice tray is removed, and this makes it possible to detect the presence or absence of the ice tray as compared with the case of using an infrared sensor that detects only the temperature. Furthermore, since a switch such as a switch for detecting the presence or absence of the ice tray is unnecessary, the cost can be reduced and the reliability of detecting the presence or absence of the ice tray can be improved.

  The invention according to claim 2 is the invention according to claim 1, wherein the presence or absence of the ice tray is detected by detecting whether the ice making chamber door houses the automatic ice making device after the user presses the ice making cleaning switch. By performing the operation when the opening / closing is detected more than a certain number of times, the user does not detect the presence or absence of the ice tray before the ice tray is removed by pressing the ice making cleaning switch. Whether or not the ice tray has been removed can be detected more reliably.

  According to a third aspect of the present invention, in the first aspect of the invention, the presence or absence of the ice tray is detected when a certain time has elapsed after the user presses the ice cleaning switch. When a person accidentally presses the ice making cleaning switch, the ice making operation is not stopped for a longer time than necessary, and the normal ice making operation can be performed more smoothly.

  According to a fourth aspect of the present invention, there is provided the ice making chamber according to the first or second aspect, wherein the presence or absence of the ice tray is detected by storing an automatic ice making device after a user presses the ice cleaning switch. Even if the opening / closing of the door is detected more than a certain number of times, if the value of the temperature sensor attached in the vicinity of the deicing mechanism is more than a certain value, it is determined that the ice tray is filled with water. By not detecting the presence or absence of the ice tray, it is possible to prevent water from spilling into the ice storage box.

  According to a fifth aspect of the present invention, in the invention of the first or third aspect, the presence or absence of the ice tray is detected even if a certain time elapses after a user presses the ice cleaning switch. When the value of the temperature sensor attached in the vicinity of the ice mechanism is a predetermined value or more, it is determined that the ice tray is filled with water, and the presence or absence of the ice tray is not detected. It can prevent water from spilling on.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the presence or absence of the ice tray is detected even if a user presses the ice cleaning / cleaning completion switch. If the presence or absence of the ice tray is not detected, the detection of the presence or absence of the ice tray is not performed, so that the user forgets to remove the ice tray even if the user presses the ice cleaning switch. The ice motor can be rotated to detect the presence or absence of an ice tray to prevent water from spilling into the ice storage box.

  According to a seventh aspect of the present invention, in the first aspect of the present invention, when the presence / absence of the ice tray is detected, even if the rate of change in the current consumption value of the deicing motor is equal to or less than a predetermined value, In the case where the current consumption value of the deicing motor is always a certain value or more from the start of the rotation operation to the end of the rotation operation, it is determined that an abnormality has occurred in the deicing mechanism due to contamination of foreign matter, By not determining that the ice tray is removed, it is possible to prevent erroneous detection of the presence or absence of the ice tray and to detect an abnormality in the ice removing mechanism.

  The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein when the presence or absence of the ice tray is detected, the ice tray is not attached, When it is detected that an abnormality has occurred in the deicing mechanism, the user is informed that the ice making tray is not attached or that the abnormality has occurred in the deicing mechanism. It is possible to prevent the user from forgetting to attach the ice tray, and to deal with the abnormality of the deicing mechanism more accurately by the user.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a diagram showing a configuration of a refrigerator-freezer with an automatic ice making device according to Embodiment 1 of the present invention.

  In FIG. 1, an automatic ice making device 13 includes a water supply device 14 including a water storage tank 14a, a water supply pump motor 14b, and a water supply pipe 14c, an ice removing mechanism 15 having an ice removing motor 15a, an ice making tray 16, and an ice storage container. An ice storage box 17 is provided.

  The water stored in the water storage tank 14a is sucked out by the water supply pump motor 14b, passed through the water supply pipe 14c and guided to the ice tray 16, and the ice tray 16 stores the guided water and freezes it in a freezing atmosphere. Thus, ice is produced, and the inside of the ice tray 16 is divided into a plurality of compartments so that a plurality of ices can be produced at a time.

  Further, the ice removing mechanism 15 is for removing ice from the ice making plate 16 by inverting the ice making plate 16 by, for example, an ice removing motor 15a, and the ice storage box 17 is de-iced. It is designed to receive and store falling ice.

  The automatic ice making device 13 is arranged at a position where the water storage tank 14a is easily taken in and out, and the water supply pipe 14c is accommodated from the ice storage tank 14a to the ice making tray 16 so that it can be taken in and out. And the ice tray 16 is also accommodated so that insertion / removal is possible.

  In addition, an ice making chamber temperature sensor 18 for detecting the temperature of the ice making chamber 12 housing a part of the water supply pump motor 14b, the ice removing mechanism 15, the ice making tray 16, and the ice storage box 17 is provided in the vicinity of the ice removing mechanism 15. In addition, an ice making chamber door opening / closing detection means 20 for detecting the opening / closing of the ice making chamber door 19 is arranged in the vicinity of the ice making chamber door 19.

  FIG. 2 is a diagram showing a configuration of a notifying means for notifying the user of the presence / absence of an ice tray and an abnormality in the ice removing mechanism in the first embodiment of the present invention.

  In FIG. 2, the notification means 21 is provided inside the refrigerator compartment 11, for example. The notifying means 21 includes an ice making cleaning switch 22 that is operated when the ice making tray 16 of the automatic ice making device 13 is removed from the ice removing mechanism 15 and cleaning, and the ice making tray 15 is also provided with the ice making tray 15 after the ice making tray 16 has been cleaned. An ice making / cleaning completion switch 23 that is operated when the ice making pan 16 is attached, and an ice making pan presence / absence alarm 24 for notifying the user that the ice making pan 16 is not attached to the ice removing mechanism 15 and the use. There is a deicing mechanism abnormality notification alarm 25 for notifying a person of abnormality of the deicing mechanism 15.

  FIG. 3 is a block diagram showing an electrical configuration mainly including a control unit of the automatic ice making device for a refrigerator according to Embodiment 1 of the present invention.

  The control part 26 consists of a microcomputer, for example, and functions as a control means for controlling the entire operation of the refrigerator including the automatic ice making device 13. The control unit 26 includes an ice making / cleaning switch input 27 which is an operation signal from the ice making / cleaning switch 22 of the notification means 21, an ice making / cleaning completion switch input 28 which is an operation signal from the ice making / cleaning completion switch 23, The door opening / closing signal input 29 of the ice making chamber door 19, the ice making chamber temperature sensor signal input 30, and the current consumption input 31 of the ice removing motor 15a when the ice removing motor 15a is rotated from the horizontal position to the ice removing position are input. In addition, temperature sensor signals provided in each room of the refrigerator are input.

  And the control part 26 calculates based on the calculation program memorize | stored beforehand using those inputs, The ice tray presence notification alarm output signal 37 which is an output to the ice tray presence notification alarm 24 in the drive circuit 36, The deicing mechanism abnormality notification alarm output signal 38, which is an output to the deicing mechanism abnormality notification alarm 25, and a drive control signal for driving other driving devices of the refrigerator are provided. In addition, the control unit 26 counts the number of times the ice making chamber door 19 is opened and closed after the ice making cleaning switch input 27 is input, and the elapsed time since the ice making cleaning switch input 27 is input. A timer 33 or a comparison unit 34 for comparing whether the current consumption value of the ice motor when the ice motor 15a is rotated from the horizontal position to the ice position is larger or smaller than a preset current value; The calculation unit 35 for calculating the rate of change of the current consumption value of the ice removal motor 15a is built in, and the ice making tray 16 is connected to the drive circuit 36 based on the comparison result of the comparison unit 34 and the calculation result of the calculation unit 35. An ice tray presence / absence notification alarm output signal 37 for notifying the user that the device is not attached to 15 or an ice removal mechanism abnormality notification alarm output signal for notifying the user of an abnormality in the ice removal mechanism 15. And it outputs a driving control signal for outputting 8.

  About the automatic ice making apparatus of the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  FIG. 4 is a flowchart showing the control operation until detecting and notifying the presence or absence of an ice tray and detecting and notifying the abnormality of the ice removing mechanism to the user in the first embodiment of the present invention. When the power is turned on, in step ST1, it is determined whether or not the ice making cleaning switch 22 operated when the user removes the ice tray 16 from the ice removing mechanism 15 and cleans it is operated. When the ice making / cleaning switch 22 is operated by the user, the process proceeds to step ST2, and the count number of the counter 32 provided in the control unit 26 exceeds a certain number of times, or the timer 33 exceeds a certain time. In this case, the process proceeds to step ST3. In step ST3, if the value of the ice making chamber temperature sensor 18 is equal to or less than a predetermined value, it is determined that water is not in the ice tray 16 and the process proceeds to step ST4, where the ice removing motor 15a is removed from the horizontal position. Rotate to position. In step ST5, the calculation unit 35 calculates the rate of change in the current consumption value of the ice removal motor 15a. If the rate of change in the current consumption value in the ice release motor 15a is equal to or less than a certain value in step ST6. The process proceeds to step ST7, and if the current consumption value of the ice removal motor 15a is equal to or less than a predetermined value, the process proceeds to step ST8 to notify the user that the ice tray 16 has been removed from the ice removal mechanism 15. In step ST7, if the current consumption value of the ice removal motor 15a is equal to or greater than a certain value, the process proceeds to step ST9 to notify the user of the abnormality of the ice removal mechanism 15. Thereafter, the process proceeds to step ST10, where it is determined whether or not the user has operated the ice making / cleaning completion switch 23 after the user has cleaned the ice tray 16.

  If the value of the ice making chamber temperature sensor 18 is not less than the predetermined value in step ST3, it is determined that the ice tray 16 is filled with water, and the process proceeds to step ST10 without rotating the ice removing motor 15a. Then, after the user has cleaned the ice tray 16, it is determined whether the user has operated the ice making / cleaning completion switch 23. Further, the ice making tray 16 also has the ice removing mechanism 15 when the rate of change in the current consumption value of the ice removing motor 15a when the ice removing motor 15a is rotated from the horizontal position to the ice removing position in step ST6 is equal to or greater than a certain value. The process proceeds to step ST10, and it is determined whether or not the ice making / cleaning completion switch 23 has been operated by the user after the user has cleaned the ice tray 16.

  Next, the process proceeds to step ST10, and when the user presses the ice making / cleaning completion switch 23 after the user has cleaned the ice tray 16, the process proceeds to step ST11 and the user makes the ice making / cleaning. If the ice tray 16 is rotated by the ice removal motor 15a before the completion switch 23 is pressed, the process proceeds to step ST13, where the ice removal motor 15a is rotated from the horizontal position to the ice removal position. Then, the process proceeds to step ST14, and the calculation unit 35 calculates the change rate of the consumption current value of the ice removal motor 15a. Then, the process proceeds to step ST15, and the change rate of the consumption current value of the ice removal motor 15a is determined in step ST15. If it is less than a certain value, the process proceeds to step ST16. If the current consumption value of the deicing motor 15a is less than a certain value, the process proceeds to step ST17, and the ice tray 16 is attached to the deicing mechanism 15 by the user. Notify that you have not. In step ST16, if the current consumption value of the ice removal motor 15a is greater than or equal to a certain value, the process proceeds to step ST18 to notify the user of the abnormality of the ice removal mechanism 15.

  When the ice making tray 16 is not rotated by the ice removing motor 15a before the user presses the ice making cleaning completion switch 23 in step ST11, the process proceeds to step ST12. If the value of the ice chamber temperature sensor 18 is equal to or less than a certain value, it is determined that the ice tray 16 may have been removed by the user, and the process proceeds to step ST13 where the ice motor 15a is separated from the horizontal position. The ice tray 16 is attached to the ice removing mechanism 15 by rotating to the ice position and calculating the rate of change of the current consumption value of the ice removing motor 15a and determining whether the current consumption value of the ice removing motor 15a is equal to or greater than a certain value. And whether there is an abnormality in the deicing mechanism. If the value of the ice making chamber temperature sensor 18 is not less than a certain value in step ST12, it is determined that the ice tray 16 is filled with water, and the ice removal motor 15a is not rotated and the process proceeds to step ST1 again. In step ST1, it is determined whether or not the ice making / cleaning switch 22 operated when the user removes the ice making tray 16 from the ice removing mechanism 15 and cleans it is operated. If the rate of change in the current consumption value of the ice removing motor 15a when the ice removing motor 15a is rotated from the horizontal position to the ice removing position in step ST15 is equal to or greater than a certain value, the user cleans the ice making tray 16. After performing the above, the ice tray 16 is attached to the ice removing mechanism 15 as it is, and it is determined that the ice making cleaning is completed, and the process proceeds to step ST1 again. It is determined whether or not the ice making / cleaning switch 22 that is operated when removing the battery from the washing machine has been operated.

  As described above, in the present embodiment, since the presence / absence of the ice tray 16 is detected based on the rate of change of the current value when the ice removing motor 15a is rotated from the horizontal position to the ice removing position, There is no need to use an infrared sensor or a switch for detecting the presence or absence of an ice tray, and the cost can be reduced, and the reliability of detecting the presence or absence of the ice tray 16 can be improved.

  Further, in the present embodiment, by comparing whether or not the current consumption value when the deicing motor 15a is rotated from the horizontal position to the deicing position is equal to or greater than a certain value, the user is informed that the deicing mechanism 15 is abnormal. Can be notified.

  In the present embodiment, a current of 100 mA or less is supplied until the ice removing motor 15a reverses the ice tray 16 by 130 ° from the horizontal position, and the ice tray 16 is further rotated 30 ° from the position where the ice tray 16 is reversed by 130 °. Since the ice tray 16 is forcibly twisted in the section up to the ice position (160 °), the current value gradually increases, and a current of 200 mA or more is supplied at the ice-off position. Further, when the ice making tray 16 is not attached to the ice removing mechanism 15, even if the ice removing motor 15a is rotated, the current consumption value of the ice removing motor 15a remains 100 mA or less until the ice removing motor 15a is reversed by 160 °. Further, when the ice removal motor 15a does not physically operate due to foreign matter mixed into the ice removal mechanism 15, the ice removal motor 15a attempts to rotate the ice tray 16 from the horizontal position to the ice removal position. A current of about 250 mA continuously flows.

  As described above, the refrigerator-freezer with an automatic ice making device according to the present invention can detect the presence or absence of the ice making tray and the abnormality of the ice removing mechanism without using a conventional infrared sensor or a switch for detecting the presence or absence of the ice tray. Since it can be detected, it can be applied to a device in which maintenance is indispensable, such as a non-contact monitoring of a state in which a location for attaching a sensor or switch for monitoring the device state is restricted.

The figure which shows the structure of the refrigerator-freezer with an automatic ice making apparatus in Embodiment 1 of this invention. The figure which shows the structure of the alerting | reporting means which alert | reports the presence or absence of an ice tray and abnormality of an ice removal mechanism to the user in Embodiment 1 of this invention. The block diagram of the control part of the refrigerator in Embodiment 1 of this invention Flowchart of control operation for detecting presence / absence of ice tray and abnormality of deicing mechanism when user cleans ice tray in Embodiment 1 of the present invention. The figure which shows the structure of the automatic ice making apparatus of the conventional refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Refrigeration room 12 Ice making room 13 Automatic ice making apparatus 14 Water supply apparatus 14a Water storage tank 14b Water supply pump motor 14c Water supply pipe 15 Ice release mechanism 15a Ice release motor 16 Ice tray 17 Ice storage box 18 Ice making room temperature sensor 19 Ice making room door 20 Ice making room door Open / close detection means 21 Notification means 22 Ice making cleaning switch 23 Ice making cleaning completion switch 24 Ice tray presence / absence notification alarm 25 Deicing mechanism abnormality notification alarm 26 Control unit 27 Ice making cleaning switch input 28 Ice making cleaning completion switch input 29 Ice making room door Opening / closing signal input 30 Ice making room temperature sensor signal input 31 Ice removing motor consumption current value input 32 Counter 33 Timer 34 Comparing part 35 Calculation part 36 Drive circuit 37 Ice making tray presence / absence notification alarm output signal 38 Ice removing mechanism abnormality notification alarm output signal

Claims (8)

  An ice removing mechanism for storing water supplied from a water supply device in an ice tray installed in a freezer compartment and making ice, and then reversing the ice tray after ice making to separate the ice from the ice tray, and the vicinity of the ice removing mechanism A temperature sensor attached to the ice tray, an ice storage box disposed below the ice tray to store ice, and a control unit that controls the ice removal mechanism, and the ice tray can be freely removed from the ice removal mechanism. An ice making cleaning switch that is operated when the user performs cleaning of the ice tray, and when the user completes cleaning of the ice tray and attaches the ice tray to the deicing mechanism. In the refrigerator-freezer with an automatic ice making device having an ice making cleaning completion switch that is operated on, the control unit compares the current consumption value of the ice removing motor provided in the ice removing mechanism with a certain value or less. The deicing motor When the rate of change of the current consumption value of the deicing motor when the deicing motor is rotated to the deicing position is less than a certain value, the calculating unit calculates the rate of change of the current consumption value. A refrigerator-freezer with an automatic ice making device, wherein the ice tray is determined to be removed.   When the user detects the opening / closing of the ice making chamber door that houses the automatic ice making device more than a certain number of times after pressing the ice making cleaning switch, the ice removing motor is rotated to the ice removing position to 2. The refrigerator-freezer with an automatic ice making device according to claim 1, wherein presence / absence of the ice tray is detected by a calculation unit that calculates a change rate of a consumption current value of the motor.   By a calculation unit that calculates the rate of change in the current consumption value of the deicing motor by rotating the deicing motor to the deicing position when a certain time has elapsed after the user presses the ice making cleaning switch 2. The refrigerator-freezer with an automatic ice making device according to claim 1, wherein the presence or absence of the ice tray is detected.   Even if the user detects the opening / closing of the ice making chamber door that houses the automatic ice making device more than a certain number of times after pressing the ice making cleaning switch, the value of the temperature sensor attached in the vicinity of the ice removing mechanism is constant. When the value is equal to or greater than the value, the ice-breaking motor is rotated to the ice-breaking position, and the calculation unit for calculating the rate of change in the current consumption value of the ice-breaking motor does not detect the presence or absence of the ice tray. A refrigerator-freezer with an automatic ice making device according to claim 1 or 2.   If the value of the temperature sensor attached in the vicinity of the deicing mechanism is equal to or greater than a certain value after a certain time has elapsed after the user presses the ice cleaning switch, the deicing motor is deiced. The automatic ice making device according to claim 1 or 3, wherein the presence or absence of the ice tray is not detected by a calculation unit that rotates to a position and calculates a rate of change of a current consumption value of the ice removing motor. Freezer refrigerator.   Even if the user depresses the ice making cleaning switch, the ice making motor is rotated to the ice removing position, and the calculation unit for calculating the rate of change in the current consumption value of the ice removing motor detects the presence or absence of the ice making tray. If not, even if the ice making / cleaning completion switch is pressed by the user, the deicing motor is rotated to the deicing position to calculate the rate of change in the current consumption value of the deicing motor. The refrigerator with an automatic ice making device according to any one of claims 1 to 5, wherein the calculation unit does not detect the presence or absence of the ice tray.   Even if the rate of change in the current consumption value of the deicing motor when the deicing motor is rotated to the deicing position is equal to or less than a predetermined value, the consumption current value comparison unit of the deicing motor When it is detected that the current consumption value is always above a certain value from the start of the rotation operation to the end of the rotation operation, it is determined that an abnormality has occurred in the deicing mechanism, and the ice tray is removed. The refrigerator-freezer with an automatic ice making device according to claim 1, wherein the refrigerator is not judged to be.   After the user presses the ice making cleaning switch, the ice making motor is rotated to the ice removing position, and the ice making tray is not attached by the calculation unit that calculates the rate of change in the current consumption value of the ice removing motor. If the current consumption comparing unit of the deicing motor detects that an abnormality has occurred in the deicing mechanism, the ice making tray is not attached to the user, or the deicing mechanism The refrigerator with an automatic ice making device according to any one of claims 1 to 7, further comprising means for notifying that an abnormality has occurred.

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