KR20120073570A - Washer and control method thereof - Google Patents

Abstract

The present invention relates to a washing machine and a control method thereof, a synchronous motor unit, a clutch lever unit rotatably provided and rotated by operation of the synchronous motor unit, a cam lever unit connected to the clutch lever unit, A lift lever part in contact with the cam lever part, a coupling part moved by the lift lever part and engaged with the rotor part or the clutch body part, and a sensor part measuring a distance between the magnetic part included in the coupling part; It is done.

Description

Washing machine and its control method {WASHER AND CONTROL METHOD THEREOF}

The present invention relates to a washing machine and a control method thereof, and more particularly, to a washing machine and a control method thereof capable of detecting whether a coupling part is completely coupled to a clutch body part or a rotor part.

In general, the automatic washing machine is a product that removes contaminants such as clothes and bedding by using friction and impact of the water flow due to the emulsification of the detergent and the rotation of the washing blade.

The automatic washing machine detects the amount and type of laundry by a sensor and automatically sets the washing method, and supplies the water to an appropriate level according to the amount and type of the laundry, and then performs washing by microprocessor control.

The fully automatic washing machine is equipped with a tub for storing the washing water in the cabinet forming the appearance, the washing tub having a plurality of dehydration holes rotatably installed in the tub.

Washing vanes are rotatably installed in the lower center of the washing tub, and a driving device including a clutch and a motor for rotating the washing tub and the washing vanes is installed at the bottom of the tub.

The above technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the art.

In the conventional fully automatic washing machine, even when the coupling part and the clutch body part or the rotor part are incompletely coupled, the washing machine or the dehydration stroke proceeds in an incomplete coupling state. As a result, there is a problem that not only noise and vibration are generated but also a failure of the clutch device and moreover, the washing machine.

Therefore, there is a need for improvement.

The present invention has been made to solve the above problems, and an object thereof is to provide a washing machine and a control method thereof capable of detecting whether a coupling part is completely coupled to a clutch body part or a rotor part.

Washing machine according to the present invention includes: a synchronous motor unit; A clutch lever part rotatably provided in the clutch base part and rotated by the operation of the synchronous motor part; A cam lever part connected to the clutch lever part; A lift lever part in contact with the cam lever part; A coupling part moved by the lift lever part and engaged with the rotor part or the clutch body part; And a sensor unit measuring a distance from the magnetic unit provided in the coupling unit.

Preferably, the sensor unit transmits the measured distance value to the control unit, and the control unit determines whether the coupling unit is engaged with the rotor unit or the clutch body unit based on the measured distance value.

Preferably, the magnetic portion is insert molded into the coupling portion.

More preferably, the magnetic portion is formed in an annular shape so that the strength of the coupling portion is reinforced.

According to an aspect of the present invention, there is provided a control method of a washing machine comprising: measuring a distance between a magnetic part provided at a sensor part and a coupling part when a washing stroke is input; Determining whether the measured distance value is equal to or less than the first set value; And if the measured distance value is less than the first set value comprises the step of proceeding the washing stroke.

Preferably, when the measured distance value exceeds the first set value, generating an alarm sound without performing the washing stroke.

According to another aspect of the present invention, a control method of a washing machine includes: measuring a distance between a magnetic part provided at a sensor part and a coupling part when a dehydration stroke is input; Determining whether the measured distance value is greater than or equal to the second set value; And performing a dehydration stroke when the measured distance value is greater than or equal to the second set value.

Preferably, if the measured distance value is less than the second set value comprises the step of generating an alarm sound without the dehydration stroke.

According to the present invention, it is possible to detect whether the coupling part is completely coupled to the clutch body part or the rotor part.

In addition, according to the present invention, since the washing stroke or the dehydration stroke proceeds only when the coupling part is completely coupled to the clutch body part or the rotor part, it is possible to suppress the occurrence of noise and vibration and to prevent the clutch device from being damaged. have.

In addition, according to the present invention, if the coupling portion is not completely coupled to the clutch body portion or the rotor portion can notify the user can improve the ease of use.

1 is a view showing a washing stroke state of a washing machine according to an embodiment of the present invention.
2 is a first side view showing a washing stroke state of a washing machine according to an embodiment of the present invention.
3 is a second side view showing a washing stroke state of a washing machine according to an embodiment of the present invention.
4 is a view showing a dehydration stroke state of a washing machine according to an embodiment of the present invention.
5 is a first side view illustrating a dehydration stroke state of a washing machine according to an embodiment of the present invention.
Figure 6 is a second side view showing a dehydration stroke state of the washing machine according to an embodiment of the present invention.
7 is a view illustrating a coupling part of a washing machine according to an embodiment of the present invention.
8 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present invention at the time of inputting a washing stroke.
9 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present invention at the time of inputting a dehydration stroke.
10 is a block diagram showing a control flow of the washing machine according to an embodiment of the present invention.

Hereinafter, a washing machine and a control method thereof according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a view showing a washing stroke state of a washing machine according to an embodiment of the present invention, Figure 2 is a first side view showing a washing stroke state of a washing machine according to an embodiment of the present invention, Figure 3 is 2 is a side view illustrating a washing stroke state of a washing machine according to one embodiment. 4 is a view showing a dehydration stroke state of the washing machine according to an embodiment of the present invention, Figure 5 is a first side view showing a dehydration stroke state of the washing machine according to an embodiment of the present invention, Figure 6 is a view of the present invention 2 is a side view illustrating a dehydration stroke state of a washing machine according to one embodiment. 7 is a view illustrating a coupling part of a washing machine according to an embodiment of the present invention. 8 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present invention at the time of inputting a washing stroke, and FIG. 9 is a flowchart illustrating a control method of the washing machine according to an embodiment of the present invention at the input of a dehydration stroke. 10 is a block diagram showing a control flow of the washing machine according to an embodiment of the present invention.

1 to 7, a clutch device 1 according to an embodiment of the present invention includes a synchronous motor unit 10, a link unit 20, a clutch lever unit 30, a cam lever unit 40, The lift lever part 50, the coupling part 60, the wire part 70, and the clutch body part 80 are included.

The synchronous motor unit 10 is connected to the link unit 20 by the wire unit 70. By the ON / OFF mode of the synchronous motor unit 10, the length of the wire unit 70 is changed while the wire unit 70 is wound or unwound by the synchronous motor unit 10.

According to the present embodiment, in the on mode of the synchronous motor unit 10 (see FIGS. 4 to 6), the wire unit 70 is shortened while being wound around the synchronous motor unit 10, and the synchronous motor unit 10 In the off mode (see FIGS. 1 to 3), the wound wire portion 70 is released and its length is restored to its original state.

The clutch device 1 has an on mode of the synchronous motor unit 10 during the dehydration stroke of the washing machine, and an off mode of the synchronous motor unit 10 during the washing stroke of the washing machine.

The link unit 20 is moved by the on / off mode of the synchronous motor unit 10 to open and close the drain valve housing 25.

Since the link unit 20 is connected to the synchronous motor unit 10 by the wire unit 70, the drain valve housing 25 is connected to the length of the wire unit 70 by the mode of the synchronous motor unit 10. It will open and close.

The link unit 20 is moved toward the synchronous motor unit 10 as the length of the wire unit 70 becomes short in the on mode of the synchronous motor unit 10. As a result, the drain valve housing 25 is opened while a drain stroke is performed.

On the contrary, the link unit 20 is moved away from the synchronous motor unit 10 as the length of the wire unit 70 increases in the original state in the off mode of the synchronous motor unit 10. Thus, the drain valve housing 25 is closed and the drain stroke is finished.

In the off mode of the synchronous motor unit 10, the link unit 20 returns to its original position. At this time, a spring member (not shown) provided in the drain valve housing 25 provides a restoring force to the link unit 20 to return the link unit 20 to its original position.

The clutch lever part 30 is rotatably provided at the clutch base part 35. According to the present embodiment, the clutch lever portion 30 is coupled to the clutch base portion 35 by the shaft member 36, and rotates using the shaft member 36 as the rotation shaft.

An elastic member 37 is mounted on the shaft member 36, and the elastic member 37 provides a restoring force for returning the clutch lever unit 30 to its original position in the off mode of the synchronous motor unit 10.

The clutch lever portion 30 is rotated in conjunction with the movement of the link portion 20. Specifically, the clutch lever unit 30 is disposed between the synchronous motor unit 10 and the link unit 20 and rotates clockwise or counterclockwise according to the movement of the link unit 20.

In the on mode of the synchronous motor unit 10, the link unit 20 moves toward the synchronous motor unit 10 to press the clutch lever unit 30. At this time, the clutch lever unit 30 is rotated by using the shaft member 36 as the rotating shaft.

On the contrary, as the link unit 20 returns to its original position in the off mode of the synchronous motor unit 10, the pressing force on the clutch lever unit 30 disappears. Therefore, the clutch lever portion 30 is returned to its original position by the elastic member 37.

The clutch lever portion 30 is provided with a through groove portion 31 through which the wire portion 70 passes. Therefore, when the wire part 70 is wound or unwound, the clutch lever part 30 is not directly affected, and the clutch lever part 30 can be prevented from interfering with the wire part 70.

The cam lever part 40 is connected to the clutch lever part 30. According to the present embodiment, the clutch lever portion 30 is coupled to the cam lever portion 40 on the opposite side of the contact portion with the link portion 20.

The cam lever portion 40 has an inclined surface 41. The cam lever part 40 is coupled to the clutch lever part 30 at the upper end part (refer to FIG. 2), and the inclined surface 41 is provided at the lower end part. The inclined surface 41 is formed to gradually increase the distance from the clutch base portion 35 from one side to the other side.

The lift lever part 50 is in contact with the cam lever part 40 on the inclined surface 41. According to the present embodiment, the lift lever part 50 is connected to the clutch body part 80 through the lift bracket 51. The lift lever part 50 is rotatably mounted to the lift bracket 51.

The coupling part 60 is moved up and down by the lift lever part 50 to be engaged with the clutch body part 80 or the rotor part 85.

Since the cam lever part 40 is connected to the clutch lever part 30, the cam lever part 40 is rotated in the same direction by the rotation of the clutch lever part 30.

While the cam lever part 40 is also rotated by the rotation of the clutch lever part 30 in the on mode of the synchronous motor part 10, the cam lever part 40 is one side of the lift lever part 50 and the inclined surface 41. It comes into contact at 41a.

One side 41a of the inclined surface 41 is closer to the clutch base portion 35 than the other side 41b. Accordingly, one end of the lift lever part 50 in contact with the inclined surface 41 (the right end part of FIG. 6) is positioned upward, and the lift lever part 50 coupled to the coupling part 60 by the principle of the lever. While the other end of the (left end) is relatively positioned on the lower side to engage the coupling portion 60 to the rotor portion 85. By the coupling of the coupling part 60 and the rotor part 85, the washing machine can proceed with the dehydration stroke.

On the contrary, the clutch lever part 30 and the cam lever part 40 rotate in the reverse direction when the synchronous motor part 10 is in the off mode, and the cam lever part 40 is the lift lever part 50 and the inclined surface 41. It comes in contact with the other side of the (41b).

The other side 41b of the inclined surface 41 is further spaced apart from the clutch base portion 35 than the one side 41a. Accordingly, one end of the lift lever part 50 in contact with the inclined surface 41 (the right end part of FIG. 3) is located at the lower side, so that the lift lever part 50 is coupled to the coupling part 60 by the principle of the lever. The other end of the (left end) is relatively positioned on the upper side to engage the coupling portion 60 to the clutch body portion (80). By the coupling of the coupling unit 60 and the clutch body unit 80, the washing machine can proceed with the washing stroke.

A spring 86 is disposed between the clutch body portion 80 and the coupling portion 60. The spring 86 elastically supports the coupling part 60 in a direction away from the clutch body part 80, that is, in a direction toward the rotor part 85.

The coupling part 60 is provided with a magnetic part 95. Since the magnetic part 95 is insert-molded in the coupling part 60, the manufacturing process can be integrated and the manufacturing cost can be reduced.

The magnetic part 95 is formed in an annular shape and is provided in the coupling part 60. Therefore, the strength of the coupling part 60 with a hollow center can be reinforced.

The sensor unit 90 measures the distance from the magnetic unit 95 and transmits the measured distance value to the control unit 91. According to the present embodiment, the sensor unit 90 is provided in the clutch body unit 80.

The controller 91 determines whether the coupling part 60 is correctly engaged with the rotor 85 or the clutch body part 80 based on the measured distance value. If it is determined that the coupling unit 60 is not correctly engaged with the rotor unit 85 or the clutch body unit 80, the control unit 91 operates the alarm unit 92 to generate an alarm sound. Through this, the user can recognize that the coupling part 60 is not exactly engaged with the rotor part 85 or the clutch body part 80.

Hereinafter will be described a control method of a washing machine according to an embodiment of the present invention.

8 and 10, when a washing stroke is input through an operation panel (not shown) (S10), the sensor unit 90 measures the distance from the magnetic unit 95 (S20). The sensor unit 90 transmits the measured distance value to the control unit 91, and the control unit 91 determines whether the coupling unit 60 is correctly engaged with the clutch body unit 80 based on the measured distance value.

The controller 91 compares the measured distance value with the first set value (S30), and when the measured distance value is equal to or less than the first set value, the controller 91 determines that the coupling part 60 is correctly engaged with the clutch body part 80. , Proceed with the washing stroke (S40).

The first set value is a value input in advance, and is a distance between the sensor unit 90 and the magnetic unit 95 in a state where the coupling unit 60 is accurately engaged with the clutch body unit 80.

The controller 91 compares the measured distance value with the first set value (S30), and when the measured distance value exceeds the first set value, the coupling part 60 is not correctly engaged with the clutch body part 80. If not, the motor 93 is stopped to generate an alarm sound without proceeding with the washing stroke (S50). The alarm sound is generated by the operation of the alarm unit 92 by the control unit 91.

Through this, even when the washing stroke is input, the washing stroke proceeds only in a state where the coupling part 60 and the clutch body part 80 are correctly engaged, thereby preventing damage to the clutch device 1 and further, failure of the washing machine. In addition, when the coupling between the coupling unit 60 and the clutch body unit 80 is not made accurately, the user can be notified of the current state through an alarm sound, thereby improving convenience of use.

9 and 10, when a dehydration stroke is input (S110), the sensor unit 90 measures the distance from the magnetic unit 95 (S120). The sensor unit 90 transmits the measured distance value to the control unit 91, and the control unit 91 determines whether the coupling unit 60 is correctly engaged with the rotor unit 85 based on the measured distance value.

The controller 91 compares the measured distance value with the second set value (S130), and when the measured distance value is greater than or equal to the second set value, the controller 91 determines that the coupling part 60 is correctly engaged with the rotor part 85, Proceed with the dehydration stroke (S140).

The second set value is a value input in advance, and is a distance between the sensor portion 90 and the magnetic portion 95 in a state where the coupling portion 60 is accurately engaged with the rotor portion 85.

The controller 91 compares the measured distance value with the second set value (S130), and when the measured distance value is less than the second set value, determines that the coupling part 60 is not correctly engaged with the rotor part 85. In operation S150, the motor 93 is stopped to generate an alarm sound without performing the dehydration stroke. The alarm sound is generated by the operation of the alarm unit 92 by the control unit 91.

Through this, even when the dehydration stroke is input, the dehydration stroke proceeds only in a state where the coupling part 60 and the rotor part 85 are correctly engaged, thereby preventing damage to the clutch device 1 and further, failure of the washing machine. In addition, when the coupling between the coupling unit 60 and the rotor unit 85 is not made correctly, the user can be notified of the current state through the alarm sound to improve the convenience of use.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary and will be understood by those skilled in the art to which various modifications and equivalent other embodiments are possible. .

In addition, the synchronous motor unit capable of simultaneously operating the drain stroke and the clutch operation has been described as an example, but the technical idea of the present invention may be applied to the synchronous motor unit that operates the clutch operation separately from the drain stroke.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: synchronous motor unit 20: link unit
30: clutch lever portion 31: through groove portion
40: cam lever part 41: inclined surface
50: lift lever portion 60: coupling portion
70: wire portion 80: clutch body portion
85: rotor portion 90: sensor portion
91: control unit 95: magnetic part

Claims (8)

Synchronous motor unit;
A clutch lever part rotatably provided in the clutch base part and rotated by the operation of the synchronous motor part;
A cam lever part connected to the clutch lever part;
A lift lever part in contact with the cam lever part;
A coupling part moved by the lift lever part and engaged with the rotor part or the clutch body part; And
Washing machine comprising a sensor unit for measuring the distance to the magnetic portion provided in the coupling portion.
The method of claim 1,
The sensor unit transmits the measured distance value to the controller,
And the controller determines whether the coupling part is engaged with the rotor part or the clutch body part based on the measured distance value.
The method of claim 1,
And the magnetic part is insert-molded in the coupling part.
The method of claim 3,
The magnetic unit is a washing machine, characterized in that formed in an annular shape so that the strength of the coupling portion is reinforced.
Measuring the distance between the magnetic part provided in the sensor part and the coupling part when the washing stroke is input;
Determining whether the measured distance value is equal to or less than the first set value; And
And if the measured distance value is less than or equal to the first set value, performing a washing process.
The method of claim 5,
And generating an alarm sound without performing the washing stroke when the measured distance value exceeds the first set value.
Measuring the distance between the magnetic part provided in the sensor part and the coupling part when the dehydration stroke is input;
Determining whether the measured distance value is greater than or equal to the second set value; And
And if the measured distance value is greater than or equal to the second set value, performing a dehydration stroke.
The method of claim 7, wherein
And generating an alarm sound without performing the dehydration stroke when the measured distance value is less than the second set value.

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