JPS6138545Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a two-drum type washing machine in which a washing process (including a rinsing process if necessary) and a drying process are performed in a rotating drum, and a dewatering process is performed in a dehydration tank.

This type of washing machine has a heater that heats the air sent to the rotating drum during the drying process, but it is desirable to increase the capacity of the heater in order to shorten the drying time as much as possible. However, since the dehydration process can be performed independently, it is necessary to divide the household electrical capacity (usually 15A, 1.5KW) between the heater and the dehydration motor, and the upper limit of the heater capacity is not determined automatically. Ta. Incidentally, the electric capacity of the dehydration motor is approximately 150W, and the electric capacity of the washing motor that rotates the rotating drum is approximately 250W during washing and approximately 150W during drying. Therefore, the current limit for the heater is 1.2KW.

This invention aims to shorten the drying time by increasing the electric capacity of the heater by the amount of the dehydration motor.
This is a two-drum type washing machine equipped with a selection switch that selectively supplies power to the heater and dehydration motor. Therefore, during the drying process, even if the power is cut off to the dehydration motor and power is supplied to the heater, and the electric capacity of the heater is increased by the amount of the dehydration motor in advance, the electric capacity can be kept within the electric capacity of a general household. This allows the process to be carried out effectively.

Furthermore, since the contact point of the dehydration timer is used as the selection switch, the dehydration motor can be automatically selected when the dehydration timer is set, and the heater is automatically selected when the dehydration timer is not set.
Therefore, even if the heater capacity is increased, there is no possibility that the breaker will operate.

Below, examples will be explained based on the drawings.
This is a two-drum drum type washing machine in which a resin-made water tank 2 is disposed inside the machine body, and a rotating drum 3 and a centrifugal dewatering tank 4 are disposed within the water tank 2. 5 is a washing motor that rotates the rotary drum 3 at a reduced speed using a pulley, gears, etc., and 6 is a dehydration motor that rotates the centrifugal dehydration tank 4 at high speed, each of which is disposed below the outside of the water receiving tank 2 and is insulated by the tank. ing.

Reference numeral 7 denotes a duct for supplying drying air to the rotating drum 3. A fan motor 8 is disposed at the starting end of the duct 7, and a harmonica-shaped heater 9 made of a positive temperature coefficient thermistor is disposed in the middle.

10 is a knob of a washing timer 101 that sets the rotation time of the washing motor 5, and 11 is a drying timer 1 that sets the operating time of the fan motor 8 and heater 9.
A knob 11 and a knob 12 are knobs of a dehydration timer 121 that sets the rotation time of the dehydration motor 6.

Next, the electric circuit will be explained. First, the washing motor 5 is supplied with power through a parallel circuit consisting of a contact 102 of a washing timer 101 and a first contact 112 of a drying timer 111. The fan motor 8 and heater 9 are the second contacts 113 of the drying timer 111.
Power is supplied through the normally closed contact 122 of the dehydration timer 121 and the dehydration timer 121 in series. The dewatering motor 6 is supplied with power through the normally open contact 123 of the dehydrating timer 121 and the lid switch 13 in series.

To explain the operation of this embodiment, in the washing process, if the washing timer 101 is set for a certain period of time, the contact 102 is closed during that time, and the washing can be done independently regardless of other processes. Also, in the dehydration process, dehydration timer 1
If the time 21 is set, the contact 123 closes during that time, and dehydration can be carried out independently without regard to other processes.
When the lid is opened during this time, the lid switch 13 is opened and the motor 6 is stopped.

In the drying process, set the drying timer 111,
During this time, each contact 112, 113 is closed. Then, power is supplied to the washing motor 5 to rotate the rotary drum 3, and power is also supplied to the fan motor 8 and heater 9 to blow air for drying. However, this drying process is stopped at the beginning or during the dehydration process as the contact 122 opens. However, the rotating drum 3 rotates. That is, the dehydration process and the drying process are selectively performed by opening and closing the contacts 122, and in this embodiment, the dehydration process is performed preferentially. Note that the interrupted drying process is automatically restarted after the dehydration process is completed.

The electric circuit in FIG. 3 is of another embodiment,
Here, contacts 122, 12 of the dehydration timer 121
3 is a switching contact. And dry timer 11
Each contact 112, 113 of 1 is connected to a contact 122 as a selection switch. Therefore, the drying process and the dehydration process are performed selectively by the contact 122, and the dehydration process is given priority. In this embodiment, a timer corresponding to each process of "washing", "spin-drying", and "drying" is operated, but if you accidentally set the washing timer 101 and drying timer 111 at the same time, the The washing motor 5, the fan motor 8, and the heater 9 can also be supplied with power. Therefore, in order to prevent malfunction, a relay or the like 14 that is supplied with power when setting the time of the washing timer 101 or the dehydration timer 121 is provided, and the safety switch 1 that is activated by this relay or the like 14 is provided.
5 is connected in series to the fan motor 8 and heater 9.

In addition, in this example and the above-mentioned first example,
By activating the relay 14 when the time of the washing timer 101 is set, it is possible to prevent malfunctions such as heating and evaporating the water during washing using water, inhibiting washing, and wasting power accordingly. It can be prevented.

As described above, the two-drum drum washing machine according to the present invention selectively performs the drying process and the dewatering process.
During the drying process, the capacity of the heater, etc. can be increased by the amount of power consumed by the dehydration motor, etc., and the drying process can be carried out extremely effectively. Further, since the contacts of the dehydration timer are used as the selection switch, the dehydration process can be automatically selected when the timer is set, and the drying process can be automatically selected when the timer is not set.

[Brief explanation of the drawing]

FIG. 1 is a schematic mechanical diagram of a two-drum drum type washing machine according to the present invention, FIG. 2 is an electric circuit diagram, and FIG. 3 is an electric circuit diagram of another embodiment. 3... Rotating drum, 4... Centrifugal dehydration tank, 5...
Washing motor, 6... Dehydration motor, 8... Fan motor, 9... Heater, 122... Dehydration timer contact (selection switch), 121... Dehydration timer.

Claims (1)

[Scope of utility model registration request] It consists of a washing motor that rotates a rotating drum, a dehydration motor that rotates a centrifugal dehydration tank, a heater that heats the drying air blown into the rotating drum, and a timer contact connected to the power supply path of the washing motor. A washing timer, a dehydration timer comprising a timer contact connected to a power supply path of the dehydration motor, and a drying timer comprising a timer contact connected to each power supply path of the washing motor and heater, the washing timer and The dehydration timer can be set at the same time, the dehydration timer and the drying timer can be set at the same time, and a dehydration timer contact that opens during the set time of the dehydration timer is provided, and the dehydration timer contact is connected to the power supply path of the heater. A two-drum washing machine characterized by being connected.