KR100679431B1 - Washingmachine for mechanial timer - Google Patents

Abstract

The present invention relates to a washing machine using a mechanical timer, washing, drainage, dehydration stroke is selected by at least one switch, the dewatering timer connected to the switch is to operate the dewatering motor for a predetermined time, and the dewatering timer and The connected drainage motor operates to drain the drain valve, and the dehydration motor connected to the changeover switch rotates in one direction for a predetermined time to perform dehydration, and the washing timer 110 connected to the changeover switch operates the washing motor for a predetermined time. In addition, the washing motor connected to the washing timer performs washing by forward and reverse rotation for a predetermined time, thereby shortening the development period, reducing manufacturing costs, and reducing the probability of defects.

Dehydration Switch, Washing Motor, Dewatering Timer, Washing Timer, Dewatering Switch

Description

Washing machine for mechanial timer

1 is a block diagram of a conventional washing machine.

2 is a control configuration of a washing machine using a mechanical timer according to the present invention.

3 is a block diagram of a drainage stroke according to the present invention.

4 is a control flowchart of a washing machine using a mechanical timer according to the present invention.

Explanation of symbols on the main parts of the drawings

10: PCB controller 11: power unit

12: sensor unit 12a: water supply sensor

12b: door sensor 13: microcomputer unit

14: key and display unit 15: drive unit

15a: motor 15b: drainage motor

15c: hot water supply valve 15d: cold water supply valve

100: laundry / drain switch 101: door switch

102: dehydration switch 103: dehydration switch

110: washing timer 111: motor

120: dehydration timer 121: drainage motor

200: drain valve 201: valve plate                 

202: pull line 203: drain link

204: clutch lever

The present invention relates to a washing machine, and more particularly, to a washing machine for performing the washing / draining / dehydrating operation of the washing machine using a mechanical timer instead of the conventional microcomputer.

In general, a washing machine uses a motor as a power source to form a stream of water by rotating the pulsator forward and reverse in accordance with a reversal cycle of the washing motor, and the formed water stream impacts the laundry to perform a washing process.

1 is a block diagram of a conventional washing machine. As shown in FIG. 1, the PCB controller 10 inputs various states such as washing, rinsing, dehydration, and washing time, and displays a key input unit and a display unit 14 for displaying a washing process according to the state. A microcomputer 13 for controlling the entire circuit and the driver 15 according to the input output signal, and a power supply 11 for supplying a constant current source by converting the AC voltage into a constant voltage source of a predetermined level to the microcomputer 13 ), A sensor unit 12 which senses various control data such as a water supply sensor 12a and a door sensor 12b and transmits the data to the microcomputer 13, and a motor by the microcomputer 13. 15a, a drain motor 15b, a hot water feed valve 15c, a cold water feed valve 15d, and a drive unit 15 for operating the water.                         

In a conventional washing machine, when a user supplies power and inputs various state information through a key input unit and a display unit 14, the power supply unit 11 converts an AC voltage into a constant voltage source at a predetermined level by converting the AC voltage into a constant voltage source at a constant level. Feed the circle. The microcomputer 13 checks the data transmitted from various sensors such as the water supply sensor 12a and the door sensor 12b of the sensor unit 12, and the motor 15a and the drainage motor of the driving unit 15. 15b), the hot water feed valve 15c, the cold water feed valve 15d, and the like are automatically executed to perform the entire washing operation of the washing machine.

However, it takes a lot of development time by the microcomputer as a control means with built-in program to control the whole administration such as washing, water supply, drainage, dehydration and rinsing of the general washing machine as described above, and it is manufactured by constructing a circuit using many parts. There is a problem that the cost increases.

An object of the present invention for solving the problems raised above is to operate a washing machine using a mechanical timer, the operation is simpler than the control by the conventional microcomputer, the development period is shortened, the number of parts is reduced, the washing machine is reduced manufacturing cost To provide.

The present invention provides a washing machine including a rotating tub and a washing and dehydrating motor, comprising: at least one switching switch for selecting a washing stroke, a draining stroke, and a dehydrating stroke; A dehydration timer for supplying power to the dehydration motor, a drainage motor connected to the dehydration timer and performing drainage, and a laundry timer connected to the changeover switch during the washing operation and supplying power to the washing and dehydration motor for a predetermined time. It is characterized by including.

In addition, the present invention is connected to the drainage motor and the tension of the washing and dehydration motor to pull down the washing or dehydration administration to be carried out, and the drainage motor is turned on when the pull string is pulled to a predetermined distance is turned on It is characterized by including a dehydration switch.

 Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, a fixed terminal (a) of the washing / drainage switching switch 100 for switching washing and dehydration to an external power source is connected, and one side of the washing / drainage switching switch 100 is operated (b). ) Is connected to the motor 111 for washing through the washing timer 110, the drain motor for draining through the dehydrating timer 120 to the other movable terminal (c) of the washing / drain switching switch 100 ( 121) is connected. And, the door switch 101 for detecting the opening and closing of the door is connected between the washing / draining switch 100 and the dehydration timer (120).

In addition, a motor 111 for performing dehydration is connected to the other movable terminal c of the washing / drainage switching switch 100 via a dehydration switching switch 102 for switching to dehydration, and the dewatering switch 102 ) And the dehydration switch 103 is connected between the motor 111.

As shown in FIG. 2, when power is supplied, the user selects a desired stroke by switching the washing / drainage switching switch 100 to washing / drainage. When the washing / drainage switching switch 100 is switched to washing and a predetermined time is set in the washing timer 110 connected to the washing / drainage switching switch 100, the motor 111 (washing motor) for the predetermined time is set. The power is supplied to the motor 111 (washing motor) to perform the washing by performing the stirring rotation of the forward and reverse rotation for a predetermined time. When a predetermined time elapses, the power of the motor 111 (washing motor) is cut off by the washing timer 110, whereby the motor 111 (washing motor) stops and the washing ends.

When the washing / drainage switching switch 100 is switched to drainage and a predetermined time is set in the dewatering timer 120 connected to the washing / drainage switching switch 100, power is first supplied to the draining motor 121 for the predetermined time. Supplied. Therefore, the drainage motor 121 operates and the dewatering switch 103 operates after a predetermined time (the detailed operation will be described with reference to FIG. 3 below).

At this time, if the user turns on the dehydration switching switch 102 and the predetermined time is set in the dehydration timer 120, the power supply is supplied to the motor 111 (dehydration motor) for the predetermined time, so that the motor 111 (dehydration motor) ) Rotates in one direction to perform dehydration. When the predetermined time elapses, the power of the motor 111 (dehydration motor) is cut off by the dehydration timer 120. Therefore, the motor 111 (dehydration motor) stops and the dehydration ends.

As shown in FIG. 3, the drainage stroke according to the present invention includes a drainage motor 121, a pull line 202 connected to the drainage motor 121 and linearly moving, and a dehydration switch located in the drainage motor 121. 103, a drain link 203 connected to the pull string 202, and a clutch lever 204 connected to the drain link and switching between washing and dehydration. A valve plate 201 is connected to the drain link 203 and opens and closes the drain valve 200.

Referring to the operation of FIG. 3, when power is supplied to the drain motor 121, the pull string 202 starts a linear motion by the drain motor 121 to move the pull string 202 toward the drain motor 121. Pull. When the pull line 202 is pulled, the valve plate 201 in the drain valve 200 connected to the pull line 202 is operated in a direction in which the drain valve 200 is opened to drain the cloudy wash water in the rotary tub. The clutch lever 204 for switching between washing and dehydration connected through the drain link 203 connected to the pull string 202 is switched to dehydration by pulling.

When a predetermined time has elapsed since the draining motor 121 is operated and the pulling string 202 is pulled toward the draining motor 121, the one end of the dehydration switch 103 by the pulling string 202 (b) Is in contact with the fixed terminal (a). Therefore, the dehydration switch 103 is operated to perform a continuous operation from the drain stroke to the dehydration stroke. (For example, after about four seconds after the drain motor 121 operation, the dehydration switch 103 by the pull line 202). Is on).

As an example, referring to the washing machine using the mechanical timer according to the present invention with reference to Figure 4, the user turns on the power switch of the washing machine in the washing / draining / dehydration selection step, the user is located washing / draining / dehydration of the operating unit of the washing machine The washing / draining / dehydrating stroke is selected by directly operating the switching switch (hereinafter referred to as the switching switch).

In order to perform the washing administration, when the user switches the switch to washing and the user sets the washing time by manually operating the washing timer 110 to wash the laundry for a predetermined time (S300), the washing timer 110 ) Is operated on (S301).

Accordingly, the external power is input to the motor 111 (washing motor) connected to the washing timer 110 through the washing timer 110 (S302). Therefore, the motor 111 (washing motor) is driven forward and reverse rotation, and washing is performed during the washing time of the washing timer 110 set by the user by the rotation (S303).

In addition, when the user switches the changeover switch to multiples to perform the drainage stroke, external power is supplied to the drainage motor 121 through the door switch 101 and the dehydration timer 120 (S310). Therefore, the drain motor 121 is turned on and the pull string 202 in the drain motor 121 is pulled so that the valve plate 201 in the drain valve 200 connected to the pull string 202 opens the drain valve. Operation to drain the turbid wash water in the rotary bath (S311). At this time, the user has to operate the dehydration switch 102 to proceed to dehydration.

  In addition, in order to perform the dehydration administration, the user switches the switching switch to dehydration, and in step S320, the user inputs the dehydration time through the dehydration timer 120 to dehydrate the laundry for a predetermined time. Therefore, the dehydration timer 120 is turned on (S321).

In this state, power is first supplied to the drain motor 121 through the door switch 101 and the dehydration timer 120 (S322). The clutch lever 204 is pulled by a pull line 202 connected to the clutch lever 204 for draining the cloudy wash water in the washing tank by turning on the drain motor 121 (S323), and switching to washing or dehydration. When dehydration is switched and the pull string 202 of the drain motor 121 is operated to come to a predetermined position, the dehydration switch 103 is turned on (S324).

At this time, when the user turns on the dehydration switching switch 102, power is supplied to the dehydration motor 111 through the dehydration switch 103 (S325). As the dehydration motor 111 is driven, the laundry is dehydrated for the set dehydration time of the dehydration timer 120 (S326).

The present invention described above is not limited to the above-described preferred embodiments and drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention.

As described in detail above, the washing machine using the mechanical timer according to the present invention is simpler to operate than the control by the conventional microcomputer, the development period is shortened, the number of parts is reduced and the manufacturing cost is reduced.

In addition, the conventional one tank washing machine to solve the difficulty of using a mechanical timer, there is no error due to the electronic control has the effect of significantly reducing the probability of failure.

Claims (2)

delete In the washing machine including a rotating tub and washing and dehydration motor, At least one switch for selecting a washing stroke, a draining stroke and a dehydrating stroke; A dehydration timer connected to the switching switch during the dehydration operation and supplying power to a washing and dehydration motor for a predetermined time; A drain motor connected to the dehydration timer and performing drainage; A washing timer connected to the switching switch during the washing operation and supplying power to the washing and dehydrating motor for a predetermined time; A pulling line connected to the drain motor and intermittently driving the washing and dehydrating motor so that washing or dehydrating stroke is performed; Washing machine using a mechanical timer characterized in that it comprises a dehydration switch that is on when the drain motor is turned on and the pull string is pulled to a predetermined distance.

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