JPH0278193A - Switch with delay-light-off function - Google Patents

Abstract

PURPOSE:To enable the realization of a switch with delay-light-off function which can instantly switch the turn-on condition of the load to the turn-off condition without lowering of the operationability by forming it with each means of input, computing, timer and power source switching. CONSTITUTION:A switch with delay-light-off function 12 comprises a computing means 14 which consists of microcomputer and has the function to control a power source switching means 16 which detects the pressure of a push switch 13 as an input means and starts a timer means 15 and while detects the passage of time and switches a circuit connected to terminals 17, 18 by its action. When the input from the switch 13 is detected, in the case that the means 16 is already open, it is to be closed, and in the case that the means 16 is closed, it is to be open after clocking the predetermined time by a timer 15, and in the case of during the clocking, it is instantly to be open. Consequently, the load can be turn-off condition at need by pressing the switch 13 continuously twice.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a switch with a delayed light-off function that is often installed in indoor electrical work, particularly in entrances and bathrooms.

2. Description of the Related Art Conventionally, this type of switch with a delayed light-off function has had a structure as shown in FIG.

The switch 1 with a delayed light-off function includes a changeover switch 2, a common contact 3 of the changeover switch 2 is connected to a terminal 4, and a changeover contact 5 is connected to a terminal 6. A delayed light extinguishing means 8 is connected between the other switching contact 7 of the changeover switch 2 and the terminal 6. The delayed light extinguishing means 8 is a well-known device, and has a function of turning off electricity for a predetermined period of time when voltage is applied, and then turning off the electricity. Now, the switch 1 with the delayed light-off function is the same as a general switch, and the commercial power supply voltage source 9 (
Actually, it is connected in the circuit between the circuit breaker (which is connected to the power supply lead-in line for each room pressure) and the load 10 such as lighting, and the load 1
Opens and closes energization to 0. That is, if the changeover switch 2 is connected to the changeover contact 5 side, the circuit is closed, and the load 10 becomes energized. In order to de-energize the load 10, the changeover switch 2 is connected to the changeover contact 7 side. The circuit is then closed via the delayed light extinguishing means 8. The delayed light extinguishing means 8 opens the circuit after a predetermined period of time has elapsed, so the load 10 is operated by the changeover switch 2.
After a predetermined period of time has elapsed after the switch is connected to the switching contact 7 side, it becomes de-energized.

Such a switch with a delay function is connected to, for example, an entrance light and is used to make it convenient for the user to go out by keeping the area around the entrance bright for a few minutes after the user turns off the switch. .

Problems to be Solved by the Invention However, a switch with a delayed light-off function having such a structure has a problem in that it is not possible to immediately turn a energized load into a de-energized state. In other words, it is necessary to wait a predetermined delay time after the switch is operated before the load becomes de-energized. The delay time can range from several tens of seconds to several hours depending on the application, but if a user accidentally turns on a load that is not energized, the delay time may last for several hours at worst even if the switch is operated immediately. It remains energized. This is extremely uneconomical.

In order to avoid this, a normal switch 11 may be connected in series with the delayed light-off function switch 1 as shown in Fig. 4, but two switches must be used only for opening/closing the load 1o. However, the operability is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a switch with a delayed light-off function that is easy to operate and can be turned off immediately when necessary.

Means for Solving the Problems In order to achieve this object, the present invention includes an input means, a calculation means connected to the input means, a timer means connected to the calculation means for measuring a predetermined time, and a power source. It consists of an opening/closing means.

Operation The switch with a delayed light-off function of the present invention has the above-mentioned configuration, so that when there is an input from the input means, if the power supply opening/closing means is open, it is closed, and if it is closed, it is brought to the closed state after a predetermined time has elapsed by the timer, and the power is turned off. If the opening/closing means is in the middle of timing the transition from the closed state to the open state, the calculation means immediately changes the opening state to the open state.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. In FIG. 1, a switch 12 with a delayed light-off function has a bushing switch 13 which is one of the input means, and this bushing switch is connected to a calculation means 14. The calculation means 14 includes a timer means 15 and a power supply opening/closing means 16.
is connected. Further, the output of the power source opening/closing means 16 is connected to terminals 17 and 18 of a switch with a delayed light-off function. Here, the calculation means 14 has a function of detecting that the button switch has been pressed, a function of causing the timer means 15 to start counting a predetermined time, and a function of detecting that the timer means 15 has finished counting the predetermined time. It has a detection function and a function of controlling the output of the power supply opening/closing means 16 to open or close. These functions can be easily realized using, for example, a microcomputer. Further, the timer means 15 can be realized by a digital timer circuit, and the power supply opening/closing means 16 can be realized by a relay circuit. Switch with delayed light-off function ] 2 is connected to the commercial power supply voltage source 19 (
In reality, it is connected in the circuit between the breaker (which is connected to the power supply line of each house) and the load 20 such as lighting, and the load 2
Opens and closes energization to 0.

The operation of the delayed light-off function switch 12 will be explained using the operation flowchart of the calculation means shown in FIG.

Assume now that the power supply opening/closing means 16 is in an open state. That is, the load 20 is in a non-energized state. The calculation means 14 checks in process 21 whether or not the button switch has been pressed. If it has not been pressed, the process 21 continues to check whether it has been pressed repeatedly.

When it is detected that the bushing switch 13 has been pressed,
Next, in process 22, the calculation means 14 checks whether the power supply opening/closing means 16 is open or closed at that time. This can be done by checking the contents of the last control of the power supply opening/closing means 16, which is stored inside the calculation means 14. Since it is in the open state here, the process goes to step 23. In process 23, the calculation means 14 controls the power supply opening/closing means 16 to the closed state, and returns to process 21.

That is, when the bushing switch 13 is pressed while the power supply opening/closing means 16 is in the open state, it immediately becomes closed, and the load 20
is energized.

Next, assume that the power supply opening/closing means 16 is now in the closed state.

That is, the load 20 is in an energized state. The calculation means 14 is
Wait for the button switch 13 to be pressed in process 21,
If it is detected that it has been pressed, the process goes to step 22. In process 22, it is checked that the power supply opening/closing means 16 is in the closed state, and the process proceeds to process 24. Here, the calculation means 14 is the timer means 1
5, and proceeds to process 25. Processing 25
Now, it is checked whether the bushing switch 13 has been pressed or not. If it has not been pressed, the process goes to step 26, where it is checked whether the timer means 15 has finished timing. In this way, steps 25 and 26 are repeated until the timer means 15 finishes counting the predetermined time. Now, when the timer means 15 finishes counting the predetermined time, the process goes to step 27. Processing 27
Then, the calculation means 14 controls the power supply opening/closing means 16 to open state, and returns to the process 21. That is, if the bushing switch 13 is pressed while the power supply opening/closing means 16 is in the closed state, the power supply opening/closing means 16 becomes open after a delay of a predetermined time, and the load 20 is de-energized.

Now, there are cases where the bushing switch 13 is pressed when the power supply opening/closing means 16 is in the closed state, and the bushing switch 13 is pressed while the timer means 15 is counting a predetermined time. In this case, the process 25 directly goes to the process 27 (that is, if the timer means 15 presses the button switch 13 during the predetermined time delay, regardless of the time value of the timer means 15 at that time, Immediately, the calculation means 14 controls the power source opening/closing means 16 to open, and the load 20 becomes de-energized.

A case will be described in which a switch with a delayed light-off function having the above configuration and operation is actually operated.

For example, when the power switch 16 is in the open state, the user may accidentally operate the bushing switch 13 to close it without intending to do so. With conventional configurations, even if you notice an error and try again, you always have to wait a predetermined amount of time. With the configuration of this embodiment, even if such an erroneous operation occurs, the erroneous operation can be quickly corrected by noticing the erroneous operation and operating the bushing switch 13 again in step 21, and operating the bushing switch 13 again in processing 25. It is possible to return to the previous open state. That is, after noticing an erroneous operation, it is possible to return to the original state by operating the bush switch only twice.

Effects of the Invention As described above, the present invention is configured to include an input means, a calculation means, a timer means, and a power supply opening/closing means, thereby making it possible to immediately turn a energized load into a de-energized state without impairing operability. This is a switch with a delayed light-off function that can be used.

Therefore, even if the load is energized by a mistake by the user, it can be immediately restored to its original state, and when unnecessary, the load can be immediately de-energized, which is economical.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a switch with a delayed light-off function showing an embodiment of the present invention, FIG. 2 is a control flowchart of its calculating means, and FIG. 3 is a block diagram of a conventional switch with a delayed light-off function.
FIG. 4 is a configuration diagram showing an example of the connection. 12-Switch with delayed light-off function, 13-Bush switch, 14-Calculating means, 15-Timer means, 16-Power supply opening/closing means. Name of agent: Patent attorney Shigetaka Awano and 1 other person/Z −
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Claims (1)

[Claims] comprising: an input means; a calculation means connected to the input means; a timer means connected to the calculation means for counting a predetermined time; and a power supply opening/closing means connected to the calculation means and opened and closed by the calculation means; When there is an input from the input means, if the power supply switching means is in an open state, the calculation means closes the power supply switching means, and if the power supply switching means is in a closed state, the timer means performs the calculation after a predetermined period of time has been counted. The means has a power supply opening/closing means in an open state, and if the predetermined time is being counted, the calculation means immediately opens the power supply opening/closing means in a delayed light extinguishing function.