JPS6237583Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a washing machine equipped with a pump motor for draining water.

In this type of washing machine, the pump motor must be driven in synchronization with the washing motor, so a switch for the pump motor is included in the washing timer. Such a conventional example will be explained based on FIG.
1 is a washing motor that rotates a pulsator (not shown) in the washing tub; 2 is a dehydration motor that rotates a centrifugal dehydration tank (not shown); 3 is a pump motor that drains water from the washing tub and the dewatering tank; 4 is a buzzer to notify the end of washing.

Reference numeral 5 designates a washing timer, which includes a main switch 6 and a pump switch 7 that are closed during a set time, a buzzer switch 8 that is branch-connected to the main switch 6 and is closed only for a predetermined time immediately before the end of the set time, and a switching cycle that is different from each other. Two reversing switches 9, 10 of different switching types
It is equipped with

The main switch 6 is connected to two parallel water flow changeover switches 11 and 12 located outside the timer, and the water flow changeover switches 11 and 12 are connected to the reversal switches 9 and 10. The reversing switches 9 and 10 are connected to the washing motor 1,
By switching the switches 11 and 12, the motor 1 is driven at different cycles to generate two types of water flow in the washing tub.

The pump switch 7 is connected to the pump motor 3, and the buzzer switch 8 is connected to the buzzer 4.

13 is a drain switch connected independently to the pump motor 3, and the pump motor 3 can be switched off at any time.
This is to drive the water to drain water.

Reference numeral 14 denotes a dewatering timer having two contacts 15 and 16, one of which is connected to the dehydrating motor 2 and the other 16 to the pump motor 3, which sets the dehydrating time and drives the dehydrating motor 2, as well as the pump motor. 3
This is to drive the water to drain water.

Here, since the pump motor 3 needs to be driven in conjunction with rinsing and dewatering, the switch 7 is placed in the washing timer 5 to control the time. Therefore, in the conventional example, a main switch 6, a pump switch 7, a buzzer switch 8, and reversing switches 9 and 10 are included in the washing timer 5, and the washing timer inevitably becomes larger. In particular, recently there has been a trend to increase the number of types of rotating water flow and adapt it to various types of clothing, so a reversing switch has become indispensable. There was a problem with space to add it.

The present invention is an attempt to solve the problems in the conventional example, and as shown in FIG. In this washing machine, the pump motor 3 is connected to each of the terminals 18 and the first contact 17 is switched from open to closed at an appropriate time before the end of the timer setting time. As a result, the pump switch 7 provided in the timer can be omitted, and the space problem can be solved. In this way, the pump motor 3 for drainage can be controlled with a timer of the same size as the conventional one.

As described above, in the washing machine according to the present invention, one circuit for the pump motor can be easily added to the timer, and the space problem within the timer can also be solved.

[Brief explanation of the drawing]

FIG. 1 is an electrical circuit diagram of a conventional washing machine, and FIG. 2 is an electrical circuit diagram of the washing machine according to the present invention. 1... washing motor, 3... pump motor, 4...
...buzzer, 5...washing timer, 6...main switch, 8...buzzer switch, 9, 10...reverse switch, 17...first contact, 18...second contact.

Claims (1)

[Scope of utility model registration request] A washing motor that rotates a pulsator, a washing timer that controls the driving time of this washing motor, a washing end buzzer, a pump motor for draining, and a main switch that is closed during a set time in the washing timer, and this main switch. A reversing switch is inserted and connected between the washing motors, and a changeover switch is branch-connected to the main switch, and the wash end buzzer is connected to a first contact of the changeover switch, and the pump motor is connected to a second contact of the changeover switch. and the first contact is closed before the end of the timer setting time.