KR20190030882A - Ice maker and refrigerator including the same - Google Patents

Abstract

Provided is an ice maker, comprising: a second control unit receiving a first signal from a first control unit; a motor unit receiving a second signal from a second control unit for control; and a rotary body rotated by rotation of the motor unit. The first signal comprises a signal determining whether the motor unit is operated or not. The second signal comprises a motor control signal to allow the rotation of the motor unit to be individually separated into two or more rotary sections to be controlled.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an icemaker and a refrigerator including the icemaker,

The present invention relates to an ice maker and a refrigerator including the same.

Generally, a refrigerator has a main body having a refrigerating chamber for refrigerating and storing foods and a freezing chamber for refrigerating and storing food, and a compressor for compressing the refrigerant and a heat exchanger for generating cold air are installed at the rear of the main body. The cold air generated in the heat exchanger is supplied to the refrigerator compartment or the freezer compartment by the fan, and the air whose temperature is increased by circulating through the refrigerator compartment or the freezer compartment is supplied to the refrigerator compartment or the freezer compartment through the heat exchanger again, Can always be kept fresh. At this time, an ice maker for producing ice is installed in the freezing room or the refrigerating room.

The ice maker automatically supplies water to the ice making container and checks the ice making condition. When the ice making is completed, the ice is automatically removed from the ice making container to be loaded on the ice holding container. Which is widely used in recent years.

The ice maker is provided with various sensors (for example, ice water sensor, position sensor, ice-fullness sensor, temperature sensor, etc.) and a motor (for example, an ejector motor or a twist Motor, etc.). The second controller for controlling the overall operation of the ice maker receives the sensing signal from the sensor and transmits the received sensing signal to the first controller provided in the refrigerator main body. The second controller receives the motor control signal from the first controller, Respectively. In this process, a large number of wiring lines may increase the volume of the ice maker.

Therefore, a separate space for accommodating a large number of wires in the refrigerator should be provided. Conventionally, these wirings are connected through the hinge portion of the refrigerator door. In this case, since the hinge portion of the refrigerator door must be provided with a space for passing the wiring through the hole, the hinge structure of the refrigerator door is weakened and the heat insulation efficiency is lowered. Also, noise and electromagnetic waves are increased due to a large number of wirings.

Korean Unexamined Patent Application Publication No. 10-2001-0093626 (October 29, 2001)

An embodiment of the present invention is to provide an ice maker in which the motor section is rotated at a constant differential speed or differential speed from an ice-maker that has received a rotation signal received from a refrigerator side and the ice section or the agar screw is rotated by the motor section .

In an embodiment of the present invention, a refrigerator includes a refrigerator having an icemaker capable of rotating an icemaker by differential or constant speed rotation of the motor unit from an ice-maker that has received a rotation signal received from a refrigerator, The purpose is to provide.

A second controller receiving the first signal from the first controller; A motor unit for receiving and controlling the second signal from the second control unit; And a rotating body rotated by rotation of the motor unit, wherein the first signal includes a signal for determining whether the motor unit is rotated, and the second signal is a signal for detecting whether the rotation of the motor unit is divided into two or more rotation sections And a motor control signal for allowing the motor to be controlled.

The first signal may be a digital signal.

Further, the second signal may include at least one of a rotational speed and a torque.

The plurality of rotation sections may include a first rotation section, a second rotation section, and a third rotation section.

Also, the first rotation section and the second rotation section may be rotated in the same direction, and the third rotation section may be opposite to the same direction.

In addition, the rotation of the rotating body may be entirely rotated in the first rotation section, partly rotated and twisted in the second rotation section, and returned to the position before the rotation in the third rotation section and may be reversely rotated.

Further, the motor unit may be a step motor.

Further, the motor unit may be at least one of an ice-making motor and an igger motor.

Further, the first control unit may be located on the refrigerator side.

Further, the rotation section includes a moving torque section for rotating the rotating body in one direction until the rotating body is engaged with the stopper when the second signal is applied, a freezing torque section for rotating the rotating body in one direction until reaching the first set torque, A torque portion and a section for rotating the ice-making tray in one direction until the ice-making tray reaches the second set torque after the ice-making torque section, and a return torque section for rotating the rotating body in the other direction after the torque-applying section.

The idling torque section and the torque applying section may have a plurality of set values such that the first set torque or the second set torque increases stepwise according to the driving time of the ice-maker motor.

Further, the moving torque section may be a section that is increased to the set rotational speed (RPM) within the shortest time from when the starting torque is applied to the freezing motor until reaching the stopper.

Further, the moving torque section may be a section that gradually increases through at least two set rotational speeds (RPM) from when the starting torque is applied to the freezing motor to reaching the stopper.

The moving torque section may be a section for increasing the rotational speed (RPM) in a pulsed manner from the time when the starting torque is given to the starting motor to the stopper.

In addition, the return torque section decreases the rotation speed RPM within the shortest time in the direction opposite to the travel torque section until the return to the return point after the lapse of the predetermined time from the point at which the second set torque is given to the freezing motor Lt; / RTI >

Further, the return torque section is provided with at least two set rotational speeds (RPM) in a direction opposite to the moving torque section until returning to the return point after lapse of a predetermined time from the time when the second set torque is given to the free- And may be a section that progressively reduces.

Further, the return torque section is rotated in a direction opposite to the moving torque section until the returning point is reached after the lapse of a predetermined time from the time when the second set torque is given to the freezing motor, and the rotational speed (RPM) .

A first control unit for transmitting a first signal; And an ice maker for receiving the first signal, wherein the ice maker comprises: a second controller receiving the first signal from the first controller; A motor unit for receiving and controlling the second signal from the second control unit; And a rotating body rotated by the rotation of the motor unit, wherein the first signal includes a signal for determining whether the motor unit is rotated, and the second signal is for controlling the rotation of the motor unit in two or more rotation periods, And a motor control signal for enabling the motor to be controlled.

The motor unit may be at least one of an ice-making motor and an igger motor.

An embodiment of the present invention can provide an ice maker in which the motor section can be rotated at a constant differential speed or differential speed from the ice maker that receives the rotation signal received from the refrigerator side and the ice section or the agar screw can be rotated by the motor section .

In an embodiment of the present invention, a refrigerator includes a refrigerator having an icemaker capable of rotating an icemaker by differential or constant speed rotation of the motor unit from an ice-maker that has received a rotation signal received from a refrigerator, .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an ice maker according to an embodiment of the present invention;
FIG. 2 is a view illustrating a configuration of an ice maker controlled by a second controller according to an embodiment of the present invention; FIG.
3 illustrates rotation of a motor portion controlled by a second signal according to an embodiment of the present invention,
FIG. 4 is a side elevational view illustrating a twisted ice state of the ice maker according to the embodiment of the present invention, FIG.
5 is a control graph showing an ice-making motor control method of an ice maker according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is merely an example and the present invention is not limited thereto.

In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following embodiments are merely a means for effectively explaining the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs.

Meanwhile, the rotating body 140 shown in FIG. 1 may be connected to the motor unit 130 and rotated. Here, the rotating body 140 is rotated by a motor provided in the icemaker 100. When the motor unit 130 is an ice-making motor, the icemaker 100 can rotate the icemaker or the ejector pin. Of course, the icemaker may be a twisted icemaker when rotating the ice stray, or a heater icemaker when rotating the ejector pin. On the other hand, when the motor unit 130 is an igor motor, the rotating body 140 can be an igus screw.

Also, the motor unit 130 may be a stepping motor. In the case of an igor motor, the rotary motor rotates mainly in one direction. However, since the idler motor for rotating the ejector pin or the idler may require reverse rotation after forward rotation, the rotation angle during the forward rotation can be controlled. Therefore, the rotation angle and the rotation direction can be controlled by the control section to be rotated by the predetermined rotation angle.

Here, since the ejector pin is rotated in a state in which the ice is not fixed from the idler by the heater, a large torque is not required during rotation, and the eccentric screw as the rotating body 140 rotated by the iger motor crushes ice Therefore, a large torque is required during the rotation. That is, when the rotation speed and the torque are required to be changed during the rotation, the icemaker may be rotated by the rotating body 140 when the motor unit 130 is an ice-making motor. The driving signal and operation thereof will be described in detail with reference to FIG.

FIG. 1 is a view illustrating a structure in which an ice maker 100 according to an embodiment of the present invention is operable.

1, the ice maker 100 provided in the refrigerator 10 may include a second control unit 120, a motor unit 130, and a rotating body 140. The ice maker 100 can receive the first signal 1 from the first controller 11 which is a control unit provided in the refrigerator 10. [ The reception can be received through the second control unit 120 of the icemaker 100. The received first signal 1 may be delivered to various configurations provided in the ice maker 100 through the second controller 120 to control the various configurations.

Specifically, a desired signal can be transmitted and received through communication between the refrigerator 10 and the ice maker 100. For example, a water supply signal may be sent from the refrigerator 10 to the water supply unit, or a signal may be transmitted to the ice storage unit so that the ice-making lever operation is performed by confirming whether or not the ice-making is complete. In the case of full ice detection, it is possible to transmit a water supply signal to the water supply unit in the case of a freezing state without sending a water supply signal to the water supply unit. The ice maker can be driven by the communication between the refrigerator 10 and the ice maker 100 as described above.

The first signal (1) transmitted from the refrigerator (10), which is a driving signal, may include information on whether the first signal (1) is driven. For example, it may be whether or not the motor is rotating, whether the lever lever is turned, whether the heater is heated, whether the water supply portion is watered, or the like. The information on whether or not the first signal 1 is driven may be transmitted to the controller 120 of the icemaker 100 and may be transmitted to each configuration again. At this time, it is possible to add a specific operation signal to the received first signal (1), and to transmit it in each configuration.

For example, when the water supply signal is included in the first signal 1 and is transmitted to the second control unit 120, the second control unit 120 adds the information related to the water supply amount to the second signal 2, And the water feeder can perform an operation corresponding to the second signal (2). Even if the heater 1 receives the first signal 1 including the heating signal from the first controller 11 provided in the refrigerator 10, the second controller 120 controls the second signal 2 including the heating temperature, To the heater. The heater may perform an operation corresponding to the second signal (2).

In the case of the motor unit 130, the first signal 1 including the turn signal is transmitted from the first controller 120 to the second controller 120, and the second controller 120 transmits the first signal 1 (2) including information on at least one of a rotation angle, a rotation speed, and a torque to the motor unit 130. In this case, And the motor unit 130 may perform an operation corresponding to the second signal (2). For example, at a predetermined speed and torque determined by a predetermined angle. Hereinafter, this will be described in detail with reference to FIG.

The first and second driving signals 1 and 2 are individually transmitted from the first control unit 11 to the first and second control units 120 and 120 through the first and second control units 11 and 120, The wiring for connection from the control unit 11 to each configuration can be simplified. In addition, by dividing the amount of information processed by the second control unit 120, the first control unit 11 that controls the electric components of the refrigerator as a whole can reduce the possibility of malfunction due to overload.

FIG. 2 is a view showing a configuration of an ice maker 100 controlled by a second controller 120 according to an embodiment of the present invention.

2, the first signal 1 transmitted from the refrigerator 10 is received by the second controller 120, and the second signal 1 further includes specific operation information Signal 2 to each of the configurations. The configuration may be, for example, a motor unit 130, a rotating body 140, a lever lever 150, an ejector 160, a water supply unit 170, a heater unit 190, The control can be controlled by the first control unit 11 of the refrigerator 10 and the second control unit 120 of the ice maker 100. [

In this control, the second control unit 120 included in the ice maker 100 communicates with the first control unit 11 provided on the refrigerator 10 side in a one-to-one manner, and the second control unit 120 and the ice- One-to-many communication can be established between the plurality of configurations 140, 150, 160, 170, 180, 190 provided in the base station 10. That is, the refrigerator 10 can simplify the wiring for connection with the electric components such as the ice maker 100, thereby increasing the capacity of the refrigerator 10 and reducing the size of the refrigerator 10.

3 is a diagram illustrating rotation of a motor section controlled by a second signal 2 according to an embodiment of the present invention. The rotating body 140, which will be described below, is an example of an icemaker that is twisted and iced, and the motor unit 130 refers to an idling motor.

Both sides of the rotating body 140 are rotatable and the rotation is a first section from the first point A to the second point B and a second section from the second point B to the third point C, And a third section from the third point (C) to the first point (A), which will be described below as AB section, BC section, and CA section, respectively.

3, ice water is supplied to the rotating body 140 as an example of the rotational angle range of the rotating body 140, that is, the eye stray, rotated by the motor unit 130, which is an ice- The ice making operation can be performed. At this time, in the embodiments of the present invention, ice can be ice-cooled by twisting the rotating body 140.

The ice-making can basically be performed through the forward rotation and the reverse rotation by the motor unit 130. Specifically, for example, if the motor unit 130 rotates about 160 degrees when the motor unit 130 rotates in the forward direction, the motor unit 130 rotates the motor unit 160 by 160 degrees. After the forward and reverse rotations are performed, Can be returned. Here, when the reverse rotation is the process of returning to the origin and the forward rotation is a process for the ice-making, the forward rotation may be divided into A-B and B-C.

In FIG. 3, the rotating body 140 can be rotated by an interval of A-B with respect to the axis of rotation O of the eye. The rotation may be a period in which the rotating body 140 is not twisted and both ends of the rotating body 140 are rotated together by the same rotation angle. Therefore, as described above, the A-B section may be an angle that allows the ice to move in its own weight direction by its own weight, and may be an angle of 90 degrees or more, for example 120 degrees. When one side of the rotating body 140 connected to the motor unit 130 is moved to the second point B, the other side can be stopped with limited movement. That is, the rotational power transmitted from the one side of the motor unit 130 is applied to one side of the rotating body 140 so that the rotating body 140 can be twisted (the second period). The rotating body 140 that has already rotated in the A-B section can be moved to the ice storage section located in the direction of its own weight as the twisted ice is twisted. After the ice is ice-cooled, the rotating body 140 returns to the point A which is the origin (third section).

Here, the rotation section includes a first section and a second section that are divided into a front portion and a rear portion adjacent to a stopper (not shown) for restricting one side of the rotator 140 so that the eye strainer can be twisted, And a rotation section including a third section, and the rotation of the rotating body 140 is performed in the order of the first section, the second section, and the third section, The rotation of the second section may be pulse-controlled so that the rotation torque of the rotating body 140 is increased in the vicinity of the stopper (not shown). For example, the rotation of the second section may be controlled by a low pulse number (pulse per second) such that the rotational speed of the rotating body 140 is reduced.

Meanwhile, the rotation section includes a first rotation section including a first section and a second section that are divided into positions before and after an angle adjacent to a rotation angle of the rotating body 140 in which the twist of the rotating body 140 starts, And a reverse rotation section including the reverse rotation section. The rotation is performed in the order of the first section, the second section and the third section, and the first section and the third section may be pulse-controlled such that the rotational torque is reduced from the second section. For example, the first section and the third section may be driven by a pulse per second higher than the second section.

The rotation path of the above-described eye strainer 220 can be divided into A-B section (first section), B-C section (second section), and C-A section (third section). That is, the section A-B is a rotation for providing an angle at which the ice can be moved in its own weight direction, and the section B-C is a rotation for twisting the rotating body 140 by the rotational power of the motor part 130 to make ice. Also, the C-A section may be a return rotation that returns the ice-making water to a state in which the ice-making water can be received again as the rotating body 140 returns to the origin.

When the rotating body 140 is formed of a resin material having elasticity, the torque required to twist the rotating body 140 in the BC section is larger than the AB section in which the rotating body 140 rotates. Therefore, And the torque can be increased. The relationship between the rotational speed and the torque has already been described above with reference to Figs.

Therefore, among the above-mentioned three sections, the section in which the torque is the greatest is the section B-C, and the sections A-B and C-A can be adjusted by preferentially considering the rotational speed more than the torque of the rotating body 140. The angles of the above-described sections are examples, and the rotation angles of the sections may be variously changed by those skilled in the art.

FIG. 4 is a side elevational view illustrating a twisted state of the icemaker according to the embodiment of the present invention, and FIG. 5 is a control graph illustrating a method of controlling the ice-making motor of the ice maker according to the embodiment of the present invention.

Referring to FIG. 4, the power transmitted to the gear group 30 can rotate the icemaker in one direction and rotate one side of the icemaker connected to the motor shaft of the icemaker.

4 (a) to 4 (c), one side is connected to the freezing motor and is rotated together with the front section according to the rotation of the freezing motor, and the other side is connected to the stopper 105 It can be rotated together with the determined interval.

The predetermined period (see the reference numeral " II, III " in FIG. 4) excluded by the entire interval is driven to rotate only one side of the eye stray, so that the eye stray can be twisted. The ice storey which accommodates the iced water and is disposed at a subzero temperature can be iced when the iced water is changed into ice (iced), and the iced was twisted to freeze the iced water.

Therefore, the icemaker is twisted to freeze the iced ice. At this time, the icemaker can be driven to twist the icemaster, and the icemaker is produced as rotational information by a drive (not shown) based on the electric signal Lt; / RTI > That is, in this embodiment, the electric signal to be the rotation information is determined by the selective transmission of the cross output unit (not shown), and the ice making can be performed.

However, even if the ice tray is driven so as to rotate only one side of the ice straw in the predetermined period, it may happen that the ice ice that has been iced into the ice tray is not completely released.

This phenomenon can be caused by various causes. For example, the temperature of the entire ice storage portion in the ice-making case is lowered. Further, even if the thickness of the injection molding of the eye stray is abnormally large, if the same torque is uniformly given, complete de-icing may not be achieved.

The embodiment of the ice-making motor control method for an ice-maker according to the present invention allows complete ice-making under specific conditions based on the above-described causes.

More specifically, in an embodiment of the ice-making motor control method of the ice-maker according to the present invention, as shown in FIGS. 4 and 5, when an operation signal for operating the ice- An idling torque section II for unidirectionally rotating the ice-making tray until the first setting torque is reached after the moving torque section I, and an idling torque section II for rotating the ice- A torque section and a section III for rotating the ice-making tray in one direction until reaching the second set torque, and a return torque section IV for rotating the ice-making tray in the other direction after the torque-applying section III.

4 and 5, when the power is applied to the freezing motor, the moving torque section I is driven with the starting torque and reaches the design speed RPM of the freezing motor, And can be defined as a section until the other side reaches the stopper 105 in the same phase.

Here, the moving torque section I may be a torque increasing section that is increased at a set rotational speed RPM within a shortest time from when the starting torque is applied to the freezing motor to when the stopping section 105 is hooked.

However, in the moving torque section I, the torque of the freezing motor does not necessarily have to be rapidly increased, and at least two set rotational speeds RPM (rpm) from the time when the starting torque is given to the freezing motor to the stopper 105 ), Which is a gradual increase in torque.

The moving torque section I may be a section that increases the rotational speed RPM in a pulse type until the starting torque is applied to the freezing motor until the stopping torque reaches the stopper 105. [ At this time, the PPS (Pulse Per Second) control may be made of two or more.

The idling torque section II is a section in which the other side of the idler is hooked on the stopper 105 and then twisted by applying torque to one side of the idler by continuous rotation driving of the idler motor.

At this time, the idling motor generates torque and transmits it to the idler until the first set torque is reached. The first set torque may be set to a value imposed so that all the ice cubes that have been ice-dropped into the ice storey under normal conditions, which will be described later, are all released.

More specifically, under steady conditions, the idler detects a position value sensed by a position sensing sensor that senses the position of one side and the other side (in particular, one side not engaged with the stopper 105) reaches the set position , All the ice cubes that have been ice-stewed in the ice storey are separated while forming the first set torque. Further, under normal conditions, when the temperature value sensed by the temperature sensor unit for sensing the temperature in the ice-making space exceeds the set temperature, the ice-stray is all freezed in the ice storey when the first set torque is imposed .

Here, the normal condition is a condition in which an ice-storey is estimated through a plurality of sensing units (the above-mentioned position sensing sensor, temperature sensor, etc.) capable of sensing all the elements related to the movement of the eye strainer or the eye strainer in the ice- All of the ice cubes can be defined as conditions that allow ice removal.

In addition, the normal condition can be defined through the weight value of the ice ice detected through the weight sensor which senses the weight of the ice stored in the ice reservoir. For example, there may be a difference in the weight of the ice reservoir when ice cubes are completely de-iced in the ice storer and in the case of un-ice cubes, so a case where such a difference is not detected can be estimated as a normal condition.

The normal condition described above is only an estimation result for setting the first set torque value and can be set differently depending on the specification of the product or the temperature of the cold air in the refrigerator in which the ice maker is installed, And can be automatically set by the control unit.

As distinct from the normal condition, it is possible to define a specific condition, which is a condition for performing the above-described torque applying period (III).

A specific condition may be defined as a case in which a plurality of sensed values sensed in an ice-making space provided with an ice storer do not correspond to a normal condition.

For example, as described above, the position value sensed by the position sensing sensor that senses the rotational position of the one side or the other side of the eye strainer may be a condition in which the position value does not reach the set position within the first set torque. This is because, when the torque is applied to the idler so as to reach the first set torque under normal conditions (i.e., the torque is imposed and executed in the idling torque period II), or when one side of the idler is not yet reached the set position It can be interpreted as a condition requiring the imposing of a torque value equal to or higher than the first set torque because ice that has not been left unremoved remains in the ice stray.

Also, as described above, the sensed temperature sensed by the temperature sensor unit 102 for sensing the temperature inside the ice-making space may be interpreted as a condition that the sensed temperature is lower than the set temperature. The setting temperature here also includes the temperature at which the ice from the ice-making tray is performed at less than 100%. That is, even if the first set torque is applied to the idler under the normal condition through the repeated learning, if the temperature is equal to or lower than the set temperature, the ice that is not always unvacuum can be defined as the condition remaining in the idler.

The specific condition may include a condition that the weight value of ice cubes detected through the weight detection sensor as described above is equal to or less than the preset weight. Here, the weight value of the ice ice can be defined as the weight value of ice added at the first setting torque on the ice weight value detected before the ice-making motor is operated. Therefore, the specific condition is a condition that can be estimated that the first set torque for the ice stray has been imposed, but that the ice is not completely removed from the weight of the ice added by the ice sensor detected by the weight sensor to be.

The idling torque section II is a section that continuously drives the freezing motor in a state where the other side of the idler is engaged with the stopper 105 and applies torque to one side of the idler until the first set torque is reached have.

The torque imparting section III may be a section for unidirectionally rotating one side of the idler until the second set torque is reached under the specific condition described above after the idling torque section II.

In the embodiment of the ice-making motor control method for an ice-maker according to the present invention, the torque-applying period (III) is defined as a period performed under the above-described specific conditions, but is not limited thereto. That is, in the initial designing of the product, it is possible to presume an incomplete condition described above, and to set the first set torque and the second set torque in advance. In this case, it may not be necessary to satisfy the specific condition.

The torque applying period III is a condition in which the torque is further applied to the one side of the idler under the above-described specific conditions or in an unconditional condition by driving the freezing motor (the difference value of the second set torque added from the first set torque is further And the ice that has been ice-dropped into the ice storey is completely removed to 100%.

On the other hand, the first set torque or the second set torque in the idling torque section II and the torque addition section III may be set to a singular value, but the present invention is not limited thereto. It is possible to have a large number of set values increasing stepwise. At this time, the PPS (Pulse Per Second) control can be made in two or more as in the case of the moving torque section (I).

4 and 5, the return torque section IV rotates the one side of the idler after the torque applying section III in the opposite direction (i.e., the other direction) to restore the idler to the original position .

At this time, as in the case of the moving torque section (I), the return torque section (IV) is a point at which the second set torque is given to the freezing motor after a lapse of a predetermined time (i.e., after the end of the torque applying section (RPM) in the shortest time period in the opposite direction to the moving torque section I until returning to the first rotational speed (I).

The return torque interval IV is set to at least two set rotations in the opposite direction to the moving torque interval I until the return to the return point after the elapse of the predetermined time from the time when the second set torque is given to the freezing motor, And may be a section that gradually decreases through the speed (RPM).

Such a return torque interval IV may be a period in which the rotation speed RPM is reduced in a pulse-like manner. At this time, the PPS control is performed based on the moving torque interval I, the freezing torque interval II, ), As shown in FIG.

The embodiment of the ice-making motor control method of the ice-maker according to the present invention can improve the ice-making efficiency by controlling the operation of the ice-making motor so as to perform the torque section and the interval so that the ice- .

As described above, the motor unit 130 may be a stepping motor. Further, it may be a stepping motor and a geared motor. In case of a geared motor, a plurality of gears are provided on the side where the motor shaft extends from the motor unit 130 to adjust the speed ratio, thereby increasing or decreasing the number of revolutions of the motor unit 130. Of course, since the number of revolutions and the torque may be in inverse proportion, a person skilled in the art can determine the gear ratio of the geared motor in consideration of the number of revolutions and the torque.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, . Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

1: first signal
2: second signal
10: Refrigerator
11:
100: Ice machine
120:
130:
140: rotating body
150: full lever
160: Ejector
170:
180:
A: First point
B: Second branch
C: Third point
O: center of rotation

Claims (19)

A second controller receiving the first signal from the first controller;
A motor unit that is controlled by receiving a second signal from the second controller; And
And a rotating body rotated by rotation of the motor unit,
Wherein the first signal includes a signal for determining whether the motor unit is rotated,
Wherein the second signal includes a motor control signal that allows the rotation of the motor section to be divided into two or more rotation sections to be controlled.
The method according to claim 1,
Wherein the first signal is a digital signal.
The method according to claim 1,
The second signal
A speed of rotation, and a torque.
The method according to claim 1,
Wherein the plurality of rotation sections include a first rotation section, a second rotation section, and a third rotation section.
The method of claim 4,
Wherein the first rotation section and the second rotation section are rotated in the same direction and the third rotation section is opposite to the same direction.
The method of claim 4,
The rotation of the rotating body,
Wherein the first rotation section is rotated in the first rotation section, the second rotation section is partially rotated and twisted, and is returned to the position before the rotation in the third rotation section and reversely rotated.
The method according to claim 1,
Wherein the motor unit is a step motor.
The method according to claim 1,
Wherein the motor unit is at least one of an ice-making motor and an igor motor.
The method according to claim 1,
And the first control unit is located on the refrigerator side.
The method according to claim 1,
In the rotation section,
A moving torque section for rotating the rotating body in one direction until the rotating body is hooked on the stopper when the second signal is applied, a freezing torque section for rotating the rotating body in one direction until reaching the first set torque after the moving torque section, And a return torque section for rotating the rotating body in the other direction after the torque applying section, wherein the controller controls the operation of the ice-
The method of claim 10,
Wherein the idling torque section and the torque applying section have a plurality of set values such that the first set torque or the second set torque increases stepwise according to a driving time of the ice-making motor.
The method of claim 10,
The moving torque section may include:
(RPM) within a shortest time from when the starting torque is applied to the ice-making motor until reaching the stopper.
The method of claim 10,
The moving torque section may include:
(RPM) from when the starting torque is applied to the ice-making motor until reaching the stopper.
The method of claim 10,
The moving torque section may include:
(RPM) is increased in a pulse-like manner from the time when the starting torque is applied to the ice-making motor to the stopper.
The method of claim 10,
The return torque section may include:
Which is a section for reducing the rotation speed (RPM) in the shortest time in a direction opposite to the moving torque section from when the second set torque is given to the ice-making motor to when the ice- .
The method of claim 10,
The return torque section may include:
(RPM) in a direction opposite to the moving torque period until the returning to the return point after a lapse of a predetermined time from the time when the second setting torque is given to the freezing motor Ice maker.
The method of claim 10,
The return torque section may include:
(RPM) in a direction opposite to the moving torque interval until the return to the return point after a lapse of a predetermined time after the second set torque is applied to the freezing motor, Ice machine.
A first control unit for transmitting a first signal; And
And an ice maker for receiving and operating the first signal,
The ice-
A second controller receiving the first signal from the first controller;
A motor unit for receiving and controlling the second signal from the second control unit; And
And a rotating body rotated by rotation of the motor unit,
Wherein the first signal includes a signal for determining whether the motor unit is rotated,
Wherein the second signal comprises a motor control signal that allows the rotation of the motor section to be separately controlled in two or more rotation sections.
19. The method of claim 18,
Wherein the motor unit is at least one of an ice-making motor and an igor motor.

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