KR20190014432A - Ice maker and refrigerator including the same - Google Patents

Abstract

An embodiment of the present invention provides an ice maker, comprising: a control box with a control unit accommodated therein; a driving motor disposed within the control box; a gearshift group delivering rotation force of the driving motor after being linked therewith, and comprising one output gear; an ice tray rotated by rotation of the driving motor after being connected to an output shaft coupled to the output gear, and accommodating ice making water; and a fixating unit fixating the position of the gearshift group such that the gearshift group is linked with the motor within the control box. Here, the fixating unit supports at least one end between both ends of the shaft coupled to the gearshift group.

Description

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

An embodiment of 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 by the heat exchanger is supplied to the refrigerator compartment or the freezer compartment by the fan and circulated in the refrigerator compartment or the freezer compartment to supply the heated air to the refrigerator compartment or the freezer compartment through the heat exchanger. State. At this time, an ice maker for producing ice is installed in the freezing room or the refrigerating room.

The ice maker provided in the refrigerator automatically supplies water to the ice maker and checks the ice making condition, and when the ice maker is finished, the ice cubes are automatically released from the ice maker to be loaded on the ice maker. It is widely used in recent years because it can obtain ice without any special operation.

These ice makers are of the type that includes the ejector and the heater and the type that twist the tray to freeze the ice. In the type of ice maker that twists the tray, the energy efficiency is higher than the type including the ejector and the heater because the heater is not used. In the case of a type of twisting the tray, it is necessary to twist the tray and return it to the original position. For this purpose, the motor uses a direct current (DC) motor. Conventionally, a brush motor is used as a DC motor for a long time.

In addition, since the rotational speed (RPM) at which the motor rotates is directly transmitted to the tray and the tray rotates at a comparatively high rotation, the rotational speed can be reduced and transmitted. In this process, one or more transmission gears may be provided for adjusting the transmission ratio to reduce the number of revolutions. These transmission gears are required to be firmly fixed to the vibration and the possibility of disengagement occurring in the process of decelerating the rotation speed of the motor at a high rotation speed.

Korean Patent Registration No. 10-1366559 (Feb. 26, 2014)

An embodiment of the present invention provides an ice maker comprising an ice maker including a support for preventing an accident such as a deviation from a predetermined position due to vibrations generated during operation, .

An embodiment of the present invention provides an ice maker comprising an ice maker including a support for preventing an accident such as a deviation from a predetermined position due to vibrations generated during operation, And a refrigerator.

In another embodiment of the present invention, an ice maker includes a supporting portion for fixing a separate transmission gear provided for reducing the number of revolutions of the motor provided in the ice maker, and an engaging portion for fixing the PCB, .

In another embodiment of the present invention, an ice maker includes a supporting portion for fixing a separate transmission gear provided for reducing the number of revolutions of the motor provided in the ice maker, and an engaging portion for fixing the PCB, In order to provide a refrigerator containing the refrigerator.

A control box in which a control unit is housed inside; A drive motor provided in the control box; A transmission gear interlocked with the drive motor to transmit the rotational force of the drive motor and including one output gear; An eye strainer connected to an output shaft coupled with the output gear and rotated by the rotation of the drive motor to receive de-iced water; And a fixing unit that fixes the position of the transmission group in such a manner that the transmission group is interlocked with the motor in the control box, wherein the fixing unit supports at least one of both ends of the shaft coupled to the transmission group.

Further, the transmission group may further include at least one transmission gear, and the fixed portion may be fixed to the output shaft, which is the rotation shaft of the output gear, and one or more transmission shafts, which are rotation shafts of the at least one transmission.

In addition, the control unit may be a printed circuit board (PCB), and the fixing unit may further include a coupling unit for fixing the control unit.

In addition, it further includes a full-range sensing lever for sensing a full ice level to be connected to the transmission group, and can operate the full-range sensing lever during interlocking.

Further, the ice maker further includes a full ice sensing lever for sensing ice cubes, and the ice cubic sensing lever can be connected to the case or the fixing portion by extending the rotation axis inside the casing.

Further, the apparatus further includes a full ice level sensor, and the operation of the full ice level sensing lever can be determined depending on whether the full ice level is sensed by the full ice level sensing lever.

The icemaker further includes a temperature sensor unit for measuring the temperature of the icemaker.

It may further comprise a water supply section which can be controlled by the control section, provides iced water to the ice storer, and is placed at the temperature of the image in the refrigerator.

The apparatus may further include a capacitance sensor for sensing the amount of deicing water.

Further, the eyestra may be formed of a resin material having elasticity.

Further, the rotation speed of the drive motor during the normal rotation and the reverse rotation of the drive motor may include other rotation sections.

In addition, a rotation section in which the rotation speed of the eye strayer is changed during normal rotation or reverse rotation can be formed.

Further, the forward rotation and the reverse rotation may have the same rotation angle with each other.

The controller may further include a demonstration button operable to drive the drive motor so that the driver can confirm whether the drive motor is driven according to predetermined rotation information by operation of the drive motor.

There is provided a refrigerator comprising the ice-maker described above.

An embodiment of the present invention provides an ice maker comprising an ice maker including a support for preventing an accident such as a deviation from a predetermined position due to vibrations generated during operation, Can be provided.

An embodiment of the present invention provides an ice maker comprising an ice maker including a support for preventing an accident such as a deviation from a predetermined position due to vibrations generated during operation, A refrigerator can be provided.

In another embodiment of the present invention, an ice maker includes a supporting portion for fixing a separate transmission gear provided for reducing the number of revolutions of the motor provided in the ice maker, and an engaging portion for fixing the PCB, .

In another embodiment of the present invention, an ice maker includes a supporting portion for fixing a separate transmission gear provided for reducing the number of revolutions of the motor provided in the ice maker, and an engaging portion for fixing the PCB, A refrigerator can be provided.

1 is a cross-sectional view of an ice maker according to an embodiment of the present invention;
2 is a perspective view of an ice maker according to an embodiment of the present invention.
3 is an exploded perspective view of a control box according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a fixing structure of a fixing part in a control box according to an embodiment of the present invention;
5 is a view showing a range in which an eye stray is rotated according to the embodiments of the present invention

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is an exemplary embodiment only 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 efficiently describing the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs.

1 is a cross-sectional view of an ice maker 1 according to an embodiment of the present invention.

Referring to FIG. 1, the ice maker 1 may be disposed in a space having a refrigeration temperature of the refrigerator. The ice maker 1 may include a driving unit and an eyestrain 300.

The ice stray 300 may include an ice making space 35 for receiving iced water therein. A plurality of partition walls are formed in the interior of the ice stray 300 to separate the ice-making space 35 into a plurality of spaces. The ice stray 300 may be provided with a temperature sensor unit 37 for measuring the temperature of ice-making water. In addition, a capacitance sensor 36 may be provided to sense the amount of ice-making water contained in the ice-making space 35.

The eye stray 300 may be formed of a resin material, and may be twisted by the driving unit and returned to its original shape. For example, it may be a resin material containing one of a vinyl chloride resin, a weather-resistant resin for reinforcing vinyl chloride, a liquid polymer, a Kaneka MS polymer, a modified silicone, and a thermoplastic elastomer.

The driving unit may be provided on one side of the eye strainer 300. The driving unit may twist the ice stray 300 to freeze the ice that has been ice-dropped in the ice stray 300. [ To this end, the driving unit may include a structure for rotating the eye strainer 300.

For example, the driving portion may include a driving motor 200, transmission gears 10, 20 and 30, cases 101 and 102, and an output gear 40. The drive motor 200 can provide a rotational force for rotating the eye strainer 300. [ The drive motor 200 can generate a predetermined rotation speed. The driving motor 200 may be a stepping motor. Since the stepping motor rotates by a certain angle every time a pulse signal is applied, the number of input pulse signals is proportional to the rotation angle of the motor. Therefore, the rotation angle of the motor can be accurately controlled by controlling the input pulse.

When a brush motor is used as a motor, the life of the brush formed of carbon is limited, and the periphery of the motor is contaminated by the carbon powder generated in the carbon brush. Further, noise and vibration generated by the brush motor are large, and the current consumed during operation of the brush motor may be high. In addition, the temperature generated by the brush motor may increase significantly, resulting in a large energy consumption. On the other hand, the current consumed by the stepping motor is low, and noise and vibration during operation are small. In addition, the heat generated during the operation of the stepping motor is low, so that the energy efficiency is high. Also, since there is no carbon brush, there is no contamination caused by carbon powder, and the service life is semi-permanent.

Meanwhile, the power supply unit may be a film type power supply unit for supplying power to the driving motor 200.

The ice maker 1 may include a position sensor (not shown) for sensing the rotational position of the eye strainer 300 by the drive motor 200.

The transmission gears 10, 20 and 30 can reduce the rotation speed of the rotation generated in the drive motor 200 and increase the torque. A pinion 210 may be formed on the motor shaft 201 of the drive motor 200. The pinion 210 increases the rotation torque generated by the drive motor 200 before the transmission 10, 20, 30 so that the torque of the rotation generated in the transmission 10, 20, 30 is further increased can do.

The transmission gears 10, 20 and 30 are also connected to an ice-full sensing lever (not shown) to twist the ice-strainer 300 as well as to generate ice in the icemaker 1 It is also possible to perform an operation of measuring the amount of ice.

The output gear 40 is configured to output a rotational force to the eye stray 300 side in consideration of the relationship between the rotational speed and the torque such as the rotational speed reduced by the transmission 10, 20, 30 and the increased torque And can be connected to the eye stray 300.

The drive motors 200 and the transmission gears 10, 20 and 30 can be disposed in the cases 101 and 102 and through holes are formed so that the output gear 40 can be connected to the eye strainer 300 . At least one of the light emitting portion and the light receiving portion may be positioned on one side of the case 101 or 102 to detect the fullness of ice stored in the ice reservoir located below the cases 101 and 102. [ That is, the light emitting unit and / or the light receiving unit located in the cases 101 and 102 can detect whether or not the ice is full according to the degree of reflection of the light reflected by the ice.

The icicle 300 can be twisted by the rotational force generated in the driving unit. In order for the eye stray 300 to be twisted, one side of the eye stray 300 stops at a state rotated by a predetermined rotation distance, and the other side of the eye stray 300 can rotate more than the predetermined rotation distance. Thus, the rotation distances of both sides of the eye strainer 300 are different from each other, so that the eye strainer 300 can be twisted.

A motor control unit (not shown) for controlling the driving motor 200 may be located in the ice maker 1 or may be located in the refrigerator. And may be located on a printed circuit board (PCB) disposed on one side of the driving motor 200 when the motor control unit is positioned in the ice- The printed circuit board may refer to a control unit (600 of FIG. 4) in the present invention. Since the driving motor 200 is a stepping motor, the motor control unit can control the driving motor 200 by receiving the control waveform. Further, a position signal by the drive waveform of the drive motor 200 can be supplied to the motor control section. Accordingly, the motor control unit can accurately control the rotational position of the driving motor 200. [ The motor control unit may be a driver for generating a pulse signal for driving the driving motor 200.

The stepping motor which is the driving motor 200 may be capable of both forward and reverse rotation. Therefore, it is possible to twist the eye strainer 300 with only the driving motor 200 and restore the same. However, the present invention is not limited to this. The twisting of the eye strainer 300 may be performed by driving the motor 200 and bringing the eye strainer 300 back to the original position by an elastic member (not shown) mounted on one side of the eye strainer 300 ).

Further, the icemaker 1 may further include a configuration such as a signal transmission unit, a cross output unit, a signal transmission unit, and a drive in connection with the control. Specifically, the signal transmitter included in the refrigerator may transmit an electric signal to drive the driving unit according to the information included in the electric signal. The electric signal transmitted from the signal transmission unit may be transmitted to the signal reception unit by the cross output unit. The direction of transmission may determine the operation information of the driving unit to which the electric signal is finally transmitted to the electric signal.

Furthermore. The information contained in the electric signal received from the refrigerator may be transmitted in different pps (pulse per secomd) when the electric signal is transmitted in a pulse form so that each pps (pulse per secomd) may include specific information. For example, when the rotation is transmitted at 180 pps, when the rotation is transmitted at 500 pps in forward rotation, the driving unit may be driven in the reverse rotation. As described above, not only the information related to the rotation direction but also information including the rotation angle and the torque.

In the case of digital signals of 0, 1, -1, etc., the rotation speed, the rotation direction, the rotation angle, the torque, and the like can be determined as a result of signal combination transmitted for each of a plurality of signal lines. That is, the electrical signal may be bipolar. Another example may be a unipolar format. For example, even in the case of a digital signal which is a signal of 1, 0, the rotational speed, the rotational direction, the rotational angle and the torque can be determined through the combination of the respective signals. That is, the electric signal may be applied to one or more of bipolar and unipolar.

The electric signal transmitted from the cross output unit included in the refrigerator can be received by the signal receiving unit and transmitted to the driving unit. The driving unit may be driven by receiving the electric signal. And may include a driving unit, a drive, and a driving motor. The drive can generate rotation information in which the drive motor 200 is rotated by transmitting information that the drive motor 200 is driven. Here, production is a process of interpreting the information contained in the received electric signal, and can be based on a predetermined rule, and the predetermined rule corresponds to the information described in the above-mentioned electric signal.

When the rotation information for rotating the driving motor 200 is produced in the drive, the rotation information is transmitted to the driving motor 200, and the driving motor can be driven corresponding to the predetermined rotation information. At this time, the power for rotating the driving motor 200 can be supplied separately from the outside by a power supply line. For example, the voltage for sending the electric signal may be 5V, and the voltage for driving the driving motor 200 may be 12V. The power line may be connected to a driving unit to transmit power. That is, the power may be transmitted through a drive or a drive motor.

The transmitted power may rotate the driving motor 200 and rotate one side of the idler 300 connected to the axis of the driving motor. One end of the eye stray 300 is connected to the driving motor 200 and rotated together with the rotation of the driving motor 200. The other side of the eye stray 300 is caught by a stopper (not shown) and rotated together with a predetermined interval. The predetermined interval corresponds to a smaller range than the entire interval, and only the one side of the idler 300 is rotated, so that the idler 300 can be twisted . The ice storey 300 accommodating de-iced water and disposed at a sub-zero temperature is twisted to de-ice the de-icer 300 in order to de-ice the iced water.

In this case, the driving motor 200 can be driven to twist the eye stray 300, and the driving motor 200 can drive the driving motor 200 based on the electric signal 1, As rotation information. In other words, in this embodiment, the electric signal to be the rotation information is determined by the selective transmission of the cross output unit, and the icing can be performed.

Of course, the present invention is not limited to this, and some of the configurations may not be included, and the driving motor 200 may be rotated by changing the transmission method of the electric signal and the rotation signal.

2 is a perspective view of an ice maker 1 according to an embodiment of the present invention.

Referring to FIG. 2, the driving motor (200 in FIG. 3) may be connected to one side of the eye strainer 300 to transmit rotational power. The rotational power can be transmitted only to one side of the eye stray 300, not to both sides thereof. For example, when the rotational power is transmitted in the normal rotation direction, the eye strainer 300 can be rotated in the normal rotation. However, the forward rotation direction is divided into a plurality of sections, and both ends of the eye strainer 300 are rotated together with only a part of the section. In the remaining section, one end of the eye strainer 300, that is, Only the connected one side can be rotated. Here, the other side portion formed on the opposite side of the one side portion can be prevented from being rotated by a stopper (not shown) so that the other side portion can be rotated to a predetermined rotation angle, So that one side of the eye strainer 300 can be rotated.

Thus, the eye straighter 300 can be twisted. The twist may be fixed to the receiving portion of the icestraer 300 when the icemaker is accommodated in the icestraer 300 and the icemaker is changed to the ice condition at a lower temperature. have.

Therefore, the icestra 300 can be twisted after it has been rotated a predetermined angle so that the ice can be moved by its own weight in its own weight direction. That is, the predetermined angular rotation may be an angle at which the both ends of the eye strainer 300 are rotated together, and a rotation section from the point where the twist is started to the point where the twist is completed, Can be rotated.

(Not shown) for driving the driving motor 200 so as to test whether or not the twister of the eye strainer 300 according to the driving of the driving motor 200 is tested. The demonstration button may be tested to see if the full ice sensing lever (not shown) is in operation with the driving motor 200 or the driving unit. This test can be performed by examining the sequence of operations of the sequence control, and it is tested whether or not the mechanical motion is implemented in the predetermined order in the control unit (600 in FIG. 4).

3 is an exploded perspective view of a control box according to an embodiment of the present invention.

10, 20, 30, and 40, which are arranged in the control box through the transmission box group 50 (10, 20, 30, 40) And the illustration of the idler 300 connected to the rotating shaft is omitted.

3, the transmission gear group 50 including the transmission gears 10, 20 and 30 and the output gear 40, the drive motor 200 and the control unit 600 are disposed in the case 101 and 102, . The controller 600 may be a printed circuit board (PCB). Here, the controller 600 may transmit an electric signal or a rotation signal to the driving motor 200 so that the driving motor 200 may be rotated. The rotation can transmit the rotation speed and the rotation angle as well as the rotation direction for determining the full rotation and the reverse rotation at predetermined numerical values. Of course, since the rotational speed forms an inverse relationship with the torque, the torque can be reduced when the rotational speed is increased. Accordingly, in consideration of such a relationship, the controller 600 can transmit a rotation signal to the drive motor 200, in which the drive motor 200 can be rotated.

The rotation information may be determined by a voltage supplied to the driving motor 200, pulse number (PPS), or the like, or may be transmitted as a digital signal including 0, 1, -1, Can be performed by the drive motor (200).

The rotational force of the driving motor 200 rotated by the rotation information rotates the pinion 210 positioned on one side of the motor shaft 201 of the driving motor 200 and the pinion 210 is engaged with the pinion 210 It is possible to rotate the transmission group 50 of the transmission.

Specifically, the rotation of the pinion 210 can be rotated by being engaged with one transmission gear 10 of the transmission group 50, and the one transmission gear can be rotated in engagement with the other transmission gear 20. As an example for explaining an embodiment of the present invention, there are three transmission gears 10, 20, 30 shown in Fig. 3, but may be one or more, and if the transmission gear ratio can be adjusted within an available range, (10, 20, 30) may not be included in the icemaker (1). Of course, the above conditions can be applied to the output gear 40 as well.

It is to be noted that an embodiment including the transmission gears 10, 20, 30 and the output gear 40 will be described in order to functionally explain the drive from the icemaker 1 to the twist of the icemaker 300. [ Since the rotational speed of the driving motor 200 is rotated at a relatively high speed in order to twist the eye strainer 300, the rotational speed is lowered through the speed ratio, but the torque can be increased as described above, .

On the other hand, the rotational force transmitted through the one or more transmission gears 10, 20, 30 can be finally transmitted in conjunction with the output gear 40. The output gear 40 can transmit the final rotational speed shifted through the transmission group 50 to the eye straighter 300. [ 5) of the idler 300 may be connected to one side of the output shaft (41 of FIG. 4) coupled with the output gear 40 for transmitting the rotational force to the idler 300.

Accordingly, the driving motor 200 is rotated through the signal received from the control unit 600 and the rotational force is transmitted to the output gear 40 through the transmission gears 10, 20 and 30 and transmitted to the output gear 40 The rotational force can be transmitted to the eye strainer 300 through the output shaft 41.

During the transmission of the rotational force, the transmission gears (10, 20, 30, 40) may be disengaged from the positions for interlocking with each other due to repetitive vibrations or the like. Structure. This structure will be described in detail with reference to FIG. 4 below.

4 is a cross-sectional view showing a fixing structure of the fixing part 400 in the control box according to an embodiment of the present invention.

Referring to FIG. 4, the cases 101 and 102 may be coupled with each other to form a space on the inner side. The control unit 600, the driving motor 200, the transmission group 50 (10, 20, 30, 40), and the fixing unit 400 may be located in the space. Here, the transmission gear group 50 (10, 20, 30, 40) is rotated in conjunction with each other, so that the rotation axis can be positioned at each rotation center. The output shaft 41 may be located at the center of the output gear 40. The output shaft 41 may be disposed at the center of rotation of the transmission gears 10, 20, Here, the output shaft 41 may extend outside the case 101, 102. The extended output shaft 41 may be connected to the rotation center (O in FIG. 5) of the eye strainer 300 to rotate the eye strainer 300.

Meanwhile, the transmission gear 10 may have a greater number of gear teeth than a gear that meshes with the pinion 210 of the drive motor 200 and meshes with the adjacent transmission gear 20. That is, the torque can be increased while the rotational speed of the high-speed drive motor 200 is reduced. Accordingly, when the plurality of transmission gears 10, 20, and 30 are interlocked, the heights of the respective transmission gears 10, 20, and 30 may be different from each other.

Even if the transmission gears 10, 20 and 30 are located at different heights, the rotary shaft coupled to the center of rotation of each of the transmission gears 10, 20 and 30 can be supported by the fixing portion 400. The transmission gears 10, 20 and 30 having different heights are supported by a single end supporting portion 411 provided at the fixing portion 400 which supports one end of both ends of the rotation shaft located at the respective rotation centers . The holding means that the rotation shaft coupled to the rotation center is supported so as to be rotatable so as to prevent the gear from being displaced from the position for interlocking with each other due to vibration or the like generated during rotation. Of course, the other housing part 412 formed in the first case 101 can support the other end of the rotation shaft so as to be rotatable.

Further, the driving motor 200 may be interposed between the two supporting ribs 414 to fix the body. Since the rotor of the driving motor 200 is rotated together with the motor shaft 201 by fixing the body, the driving motor 200 can be driven without releasing the driving motor. The driving motor 200 is interposed between and fixed to the support ribs 414 formed on the side of the first case 101. However, the support ribs 414 The driving motor 200 may be fixed to the fixed portion 400 side.

The motor shaft 201 rotatably supports the motor shaft 201 on the opposite side of the body of the drive motor 200 fixedly supported by the support ribs 414, Which can prevent vibration. The transmission shafts 11, 21 and 31 and the output shaft 41 for supporting the transmission gears 10, 20 and 30 and the output gear 40 can be rotatably supported at least once. One end of the both ends can be rotatably supported by the fixed portion 400 and the other ends of the transmission shafts 11, 21 and 31 can be rotatably supported by the first case 101. [ Particularly, in the case of the output shaft 41, one end of the output shaft 41 is rotatably supported by the fixing unit 400, the other end of the output shaft 41 is rotatably supported by the first case 101, .

In addition, the support ribs 413 and 414 can fix the control unit 600 on both sides. For example, when the control unit 600 includes a printed circuit board, the support ribs 413 and 414 are formed to be inserted into a space corresponding to the thickness of the printed circuit board, Can be fixed.

Further, a full-bleed sense lever (not shown) can be operated by the rotation of the drive motor 200. That is, the rotation axis of the full ice sensing lever is connected to the inside of the case 101, 102, and is connected to the driving motor 200 and the transmission gear group 50, so that a force capable of operating the ice- . Further, the ice-making detecting lever may be operated according to whether the position sensing unit (not shown) senses the amount of ice stored in the storage unit (whether the ice cubes are full) and the ice that is not discharged through the ice- Therefore, the controller 600 can receive the sensing information from the position sensing unit and determine the operation of the full-sized sensing lever.

The supporting portion 411 of the supporting portions 411 and 412 may include one more shaft including the output shaft 41 than the other supporting portion 412.

The fixing portion 400 described above may be coupled to the case 101, 102 although not shown. The coupling may be a coupling by a coupling member or a coupling by an adhesive member. That is, vibrations generated in the process of transmitting the rotational force of the driving motor 200 through the transmission gear unit 50 (10, 20, 30, 40) are transmitted to the cases 101, 102 along the fixing unit 400 .

In addition, the fixing unit 400 may support the control unit 600. The control unit 600 may be fixed since it is an element that does not move unlike the rotating shaft. The fixing part may be a coupling part in the shape of a fitting groove or the like formed in the fixing part 400. For example, the engaging portion may be a supporting rib 413. [ The support ribs 413 and 414 can fix the control unit 600 on both sides as in the support portions 411 and 412 described above.

Further, the shape of the support ribs 413 and 414 may be modified according to the shape of the control part 600. [ The driving motor 200 and the printed circuit board may be coupled so that the body of the driving motor 200 is fixed on the printed circuit board included in the controller 600 and the rotor of the driving motor 200 is rotated. In this case, the supporting ribs 413 and 414 can be formed so as to be fixed to the printed circuit board.

The sum of the numbers of transmission gears 10, 20, 30 and output gears 40 included in the transmission group 50 in the above-described embodiment may be one or more, and Fig. 4 shown is merely an example, It goes without saying that the shape of the fixing surface and the fixing portion 400 of the motor 200 may vary depending on the structure accommodated in the cases 101 and 102.

20 and 30 are supported by the fixed portion 400 even when the transmission 10, 20 and 30 are located at different heights, as shown in FIG. . The transmission gears 10, 20, and 30 having different heights are configured to minimize the length of the rotation shaft located at the center of rotation of each of the transmission gears 10, 20 and 30, And the other housing part 412 extending from the first case 101 can be located. In other words, the ends of the rotary shaft can be supported at the individual heights by the one end supporting part 411. [

Of course, the other retaining portion 412 supporting the other end of the rotation shaft can individually support the rotation shaft. Here, since the support portion 411 at one end of the support portions 411 and 412 can support up to the end portion of the output shaft 41, one more support portion 411 than the other support portion 412 can be provided.

This fixing part 400 may be coupled to the case 101, 102 although not shown. The coupling may be a coupling by a coupling member or a coupling by an adhesive member. That is, the vibrations generated in the process of transmitting the rotational force of the driving motor 200 through the transmission gear unit 50 (10, 20, 30, 40) are fixed or fixed by the fixing unit 400 and the cases 101, Can be supported.

5 is a view showing a range in which the eye strainer 300 is rotated according to the embodiments of the present invention.

Both sides of the eye stray 300 can be rotated and the rotation is divided into a first section second section and a third section, which will be described below as A-B section, B-C section, and C-A section.

5, as an example of the rotational angle range of the eye strainer rotated by the driving motor 200 included in the above-described embodiment, ice water is supplied to the ice strainer 300 and ice The ice-making can be performed. At this time, in the embodiments of the present invention, the icemaker can ice the ice by twisting the icemaker (300).

The ice-making can basically be performed through forward rotation and reverse rotation by the drive motor 200. Specifically, for example, if the drive motor 200 rotates by about 160 degrees when it is in normal rotation, the reverse rotation is rotated by 160 degrees, and after the forward rotation and the reverse rotation 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. 5, the eye straighter 300 can be rotated by the A-B section (first section) based on the axis of rotation O of the eye. The rotation may be a period in which both ends of the eye stray 300 are rotated together by the same rotation angle without the eye stray 300 being twisted. 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 eye strainer 300 connected to the driving motor 200 is moved to point B, the other side can be stopped with limited movement. That is, the rotary power transmitted from the one side of the driving motor 200 to the one side can be twisted (the second period). The ice stray 300 that has already been rotated in the A-B section can be moved in its own weight direction as the ice is twisted. After the ice is ice-cooled, the ice storey 300 returns to the home position A (third section).

Here, the rotation section may include 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 idler 300 so that the idler can be twisted, And the third section, and the rotation of the eye strainer 300 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 eye stray 300 is increased in the vicinity of the stopper (not shown). For example, the rotation of the second section can be controlled by a low pulse number (pulse per second) such that the rotational speed of the eye stray 300 is lowered.

Meanwhile, the rotation section may include a straight section including a first section and a second section that are divided into positions before and after the angle adjacent to the rotation angle of the eye stray 300 at which the twist of the eye stray 300 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 icemaster 300 by the rotational power of the driving motor 200 to make ice. In addition, the C-A section may be a rotation that causes the icemaker 300 to return to the state capable of receiving the iced water again as it returns to the origin.

When the icicle 300 is formed of a resin material having elasticity, the torque required for twisting the icicle 300 in the BC section is larger than the AB section for rotating the icicle 300, And the torque can be increased. The relationship between the rotational speed and the torque (inversely proportional relation) has already been described above.

Therefore, among the above-mentioned three sections, the section in which the torque acts most is the section B-C, and the sections A-B and C-A can be adjusted in consideration of the speed. 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.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, I will understand. 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: Ice machine
10, 20, 30: Transmission gear
11, 12, 31: Shifting axis
36: Capacitive sensor
37: Temperature sensor unit
40: Output gear
41: Output shaft
50: Transmission fisherman
101: First case
102: Second case
200: drive motor
201: Motor shaft
210: pinion
300: Eye Stray
400, 500:
410, 510:
411, 511:
412, 512:
413, 513:
600:
A: First point
B: Second branch
C: Third point
O: Eye Stray Rotation Center

Claims (17)

A control box in which a control unit is housed inside;
A drive motor provided in the control box;
A transmission gear interlocked with the driving motor to transmit the rotational force of the driving motor and including one output gear;
An eyestore connected to an output shaft coupled with the output gear and rotated by rotation of the drive motor to receive deicing water; And
And a fixing unit for fixing the position of the transmission gear group in the control box such that the transmission gear group is interlocked with the motor,
And the fixing portion rotatably supports the motor shaft end portion of the driving motor.
The method according to claim 1,
And the fixed portion rotatably supports one end of the output shaft.
The method according to claim 1,
Wherein the transmission group further comprises at least one transmission gear,
Wherein the fixed portion fixes at least one of the output shaft which is the rotation shaft of the output gear and the at least one transmission shaft which is the rotation shaft of the at least one transmission.
The method according to claim 1,
The driving motor is fixed to the fixing portion or the one side portion of the case so that the motor shaft is rotated,
Wherein the fixing is fixed by a supporting rib.
The method according to claim 1,
The control unit includes a printed circuit board (PCB)
Wherein the fixing portion further comprises a support rib for fixing the printed circuit board.
The method according to claim 1,
Further comprising: a full ice level sensing lever for sensing a full ice level connected to the transmission fish group, wherein the ice level sensing lever is operated during the interlocking.
The method according to claim 1,
Further comprising a full-range detection sensor for detecting whether or not the full ice is present,
Wherein the operation is determined depending on whether or not the full ice level detected by the full ice level sensor is detected.
The method according to claim 1,
Further comprising a full ice sensing lever for sensing full ice,
Wherein the ice-cube detecting lever has a pivoting axis extending inwardly of the case and connected to the case or the fixing portion.
The method according to claim 1,
And a temperature sensor unit for measuring the temperature of the ice making water is formed in the ice tray.
The method according to claim 1,
Further comprising a water supply section that can be controlled by the control section and provides the iced water to the icestroy, and is disposed at a temperature of the image in the refrigerator.
The method according to claim 1,
Further comprising a capacitance sensor for sensing an amount of the iced water.
The method according to claim 1,
Wherein the icicle is formed of a resin material having elasticity.
The method according to claim 1,
Wherein the rotational speed of the drive motor during the normal rotation and the reverse rotation of the drive motor includes another rotation period.
14. The method of claim 13,
And a rotation section in which the rotation speed of the ice storey is changed during the forward rotation or the reverse rotation is formed.
14. The method of claim 13,
Wherein the forward rotation and the reverse rotation have the same rotation angle with each other.
The method according to claim 1,
Further comprising a demonstration button capable of operating the drive motor so as to confirm whether the operation of the drive motor is driven according to predetermined rotation information.
A refrigerator comprising an ice maker according to any one of claims 1 to 16.

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