JPS5842917B2 - Paid switch control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pay switch control device used in electrical equipment such as an electric washing machine, in which a user inserts a predetermined coin to connect a power source to a load for a certain period of time. At the same time, when the time of power connection to the load exceeds a certain amount of time, a lamp etc. will be used to announce that the specified time has elapsed, and after a certain period of time has elapsed after the announcement, coin insertion will be blocked and power will not be applied to the load. This invention relates to a toll switch control device that does the following.

Conventionally, switch control devices that have the function of accumulating the total usage time of a load, giving notice of end-of-life, etc., and shutting off the power supply require two types of integrated long-time timers: one for notice and one for cutoff. The device is expensive, and as the set time increases, the absolute amount of variation in operating time increases, resulting in inconveniences such as the inaccuracy of advance notice time.

The present invention eliminates the above-mentioned drawbacks, and uses an integrated long-time timer for advance notice of lifespan, etc., but uses a short-time timer after advance notice, so that when the set time such as lifespan is reached, This is an inexpensive method for cutting off power to a load with little variation over time.

FIG. 1 shows a block diagram in one embodiment of the present invention.

In FIG. 1, when a predetermined coin is inserted, a short-time timer operates to energize the load power source for 60 minutes, and at the same time, energizes the integrated long-term timer for 60 minutes.

This operation is repeated every time a predetermined number of coins are inserted, and the energizing time is added up to the cumulative long-time timer for each operation.

Here, as an example of the setting time of the integrated long-time timer,
If the setting is 000 hours, the total operating time will be 500 hours.
A series of repetitions is possible for less than 0 hours, but 5oo
.

If the time is exceeded, a warning light will be displayed and
Operations after 5,000 hours are integrated into a relatively short cut-off timer, and when the set time of the cut-off timer (24 hours in the example) has elapsed, coin insertion is blocked and the next operation cannot be started. It is something.

FIG. 2 shows an electrical circuit diagram of one embodiment of the present invention.

In Fig. 2, 1 is a relay that has a coil 1C and is used to remember that a coin has been inserted, 2 is a short-time timer that regulates the energization time to the load, 3 is a load such as a washing machine, and 4 is a relay for remembering that a coin has been inserted. Integrated long-term timer for warning lights, 5 is a cut-off timer, 6
is a warning light, 7 is a solenoid for preventing coin insertion, 8 is a normally open contact of the curing insertion detection switch, 9 is a normally closed contact that is attached to the short time timer 2, and 10 and 11 are normally open contacts of relay 1, respectively. 12 and 13 are the normally open contacts of the short timer 2, 14 and 15 are the normally open contacts of the long timer 4, and 16 are the normally closed contacts of the short timer 2.
17 is a normally closed contact of the cut-off timer 5.

Next, the basic operation of one embodiment of the present invention will be explained.

Now, when a coin is inserted, the contact 8 of the detection switch is closed and the relay 1 is energized, and the normally open contact 10 is closed and the relay 1 is self-held.

Also, at this time, the timer 2 is energized for a short time by the normally open contact 11, and the timer starts operating.The timer 2 is self-maintained by the normally open contact 12, and the washing machine is energized for a certain period of time. This is integrated into the integrated long-term timer 4 for warning lights.

Washing is started in this way, and the washing machine is energized for a certain period of time set by the short timer 2, but just before the end of washing, the normally open contact 9 of the reset switch opens and the relay 1 returns to the timing state, and then the Normally open contact 12,1 of hour timer 2
3 returns to its original state and the timer operation ends, and at the same time, the power supply to the integrated long-term timer 4 for warning lights is also cut off.

During the washing operation, the normally open contact 16 of the short-time timer 2 opens to cut off the current to the solenoid 7, thereby locking the coin in place.

In this way, the washing time is accumulated in the warning light integration type long-term timer 4 in sequence, and when the total accumulated time exceeds the value set in the warning light integration type long-term timer 4 (5000 hours in the example) The normally open contact 14 of the integrated long-term timer 4 for warning lights closes, and the subsequent operating time is integrated into the cut-off timer 5. At the same time, the normally open contact 15 turns on the warning lamp, indicating that the warning lamp is about to reach the end of its life, etc. Show that there is something missing.

While this warning lamp is on, conventional washing operations are possible, but when the total washing time after the lamp is on reaches the value set in the cut-off timer 5 (24 hours in the example), the cut-off timer 5 is turned off. The normally-closed contact 17 opens and prevents the solenoid 7 from being energized, and coin acceptance is blocked, and the washing machine is no longer energized.

The paid switch control device of the present invention grasps the total usage time of electrical equipment that serves as a load, gives advance notice that a predetermined time (life span or maintenance time) is approaching, and after the notice is given, the time variation is reduced as much as possible. This device automatically stops the load operation after a predetermined period of time has elapsed since the device is lost, which has the excellent effect of preventing unreasonable usage beyond its lifespan and preventing disasters.

In addition, since the cut-off timer does not operate until the long-term integrated timer for the warning light operates, it is possible to save some power.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a toll switch control device according to an embodiment of the present invention, and FIG. 2 is an electric circuit diagram of the same toll switch control device. 2... Short time timer, 3... Load,
4... Integral type long timer for warning lights, 5...
....Timer for shutoff, 6..Warning light, 7.
...Solenoid for fixing coin insertion.

Claims (1)

[Claims] 1. A short-time timer that connects the power to the load for a certain period of time in conjunction with a predetermined coin inserted, and a short-time timer that operates through the contacts of the short-time timer and turns on the warning light when the preset time is reached. A long-term integrated timer for warning lights equipped with a contact that lights up, and a coin when the operating time of the short-time timer is integrated after the set time of the long-term integrated timer for warning lights and a preset time is reached. A paid switch control device comprising a cut-off timer that operates a coin insertion prevention solenoid that prevents coin insertion.