JPH0720269A - Timer - Google Patents

Abstract

PURPOSE:To make the measurement of a set time possible in the form of an actually used time by deciding whether a load is consuming power or not and measuring the time only when the load is used. CONSTITUTION:Upon turning a start switch 5a ON, a measurable state is brought about in the timer section 5 which outputs a control signal. When a load switch 6 is subsequently turned ON to bring about the usable state of a load 7, the timer section 5 measures the time interval when the load 7 is in the usable state based on a signal representative of the using state of the load 7 detected at a detecting section 3. When the use of the load 7 is stopped for a predetermined time, the measurement of time is stopped during that time interval. When the timer section 5 is in the measurable state, a control section 4 feeds power based on the control signal therefor and when a set using time of the load 7 is reached and the timer section 5 enters into a measurement waiting state, power supply is interrupted. Since the set time matches the actually used time, power is not interrupted independently from the using time of the load 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timer device for controlling power supply to a load, and more particularly to a timer device for determining a usage state of a load and controlling power.

[0002]

2. Description of the Prior Art Conventionally used timer devices are
It is used by being connected between a power source and a load that requires a power source. When the time is set, the timer device supplies electric power to the load and starts measuring the time. Then, when the set time has elapsed, the power supply to the load is automatically cut off.

The time to be set in the timer device is set immediately before starting the supply of electric power by arbitrarily setting the time for which the load is desired to be used. Then, the electric power is supplied to the load within the set time, and the electric power supply to the load is cut off after the elapse of the set time, thereby restricting the electric power supply to the load.

As described above, the power is supplied from the time when the time is set to the time when the set time elapses. Further, the power supply time can be extended or shortened by resetting the time in the timer device.

[0005]

However, in such a conventional timer device, after setting the usage time of the load and starting the measurement of the time, it is irrelevant whether or not the load is used. The time measurement continues. Then, when the measurement time reaches the set time, the power supply is automatically cut off. In this way, the power is cut off regardless of the usage time of the load. Therefore, after starting the time measurement, the time is continuously measured even when the load is stopped, and when the measured value reaches the set time, the power is automatically cut off. And there was a problem that it is different from the time when the load is actually used.

In order to solve such a conventional method, an object of the present invention is to provide a timer device capable of measuring a set time in an actual use time.

[0007]

In order to solve the above-mentioned problems, in a timer device according to the present invention, a timer device connected and used between a power source and a load judges whether or not there is a load, and A detection unit that outputs a detection signal indicating a state, and a timer that measures the time corresponding to the state based on the detection signal output by the detection unit and outputs whether or not the set time value is reached as a control signal And a control unit that controls the supply of electric power based on the control signal output by the timer unit.

Alternatively, in a timer device used by connecting between a power source and a load, a detection unit that determines the presence or absence of a load and outputs a detection signal indicating the state of the load, and a detection signal output by the detection unit Based on this, when there is a load, the time is measured, when there is no load, the time measurement is stopped, and a timer unit that outputs as a timer signal whether or not the set time value has been reached, and the detection unit output. Based on the detection signal, the time is measured when there is no load, the time measurement is stopped when there is a load, and a stop timer unit that outputs whether or not the set time value has been reached as a stop timer signal,
A control unit that controls the supply of electric power based on each signal output by the timer unit and the stop timer unit is provided.

Further, the first notification unit outputs the first notification signal a certain time before the timer unit reaches the set time value, and notifies the arrival of the set time value based on the first notification signal. It is provided.

Further, when the timer unit reaches the set time value, a second notification signal is output, and a second notification unit is provided to notify that the set time value is reached based on the second notification signal. There is.

Further, a power supply unit is provided so that the measured value of the timer unit can be held even when the power supply is disconnected.

[0012]

In the above structure, the detecting section detects whether or not the load is consuming electric power and detects the state of the load.
Thereby, the usage state of the load can be determined.

The timer section measures the time corresponding to the signal output from the detection section. As a result, it is possible to perform cumulative measurement of time according to the load state. For example, the timer unit measures the time when the load is used and does not measure the time when the load is not used. In this case, the cumulative time when the load is used is measured. On the other hand, the timer section
Do not measure the time when the load is used, and measure the time when the load is not used.
In this case, the accumulated time when the load is not used is measured.

Further, the control unit supplies or cuts off the electric power based on the signal output from the timer unit. This makes it possible to control the supply of electric power to the load. For example, the signal output from the timer unit supplies power when the time is being measured, and when the time measurement is completed,
Alternatively, the power is cut off when it is finished.

In this way, the accumulated time corresponding to the usage time of the load is measured and the power supply is controlled. For example, when the timer unit measures the time when the load is used and the control unit supplies the power when the timer unit measures the time, the time when the load is used is accumulated. Power is supplied during measurement and time measurement.
Then, when the usage time of the load reaches the set time and the time measurement is completed, the power is cut off. Thus, the usage time of the load is cumulatively measured, and the power can be cut off when the cumulative time reaches the set time.

Therefore, unlike the conventional case, the power supply to the load is not automatically cut off after the time set at the beginning, regardless of the usage state of the load.

Further, by providing a timer section for measuring the used time and a stop timer section for measuring the unused time, the used time can be cumulatively measured and the unused time can be cumulatively measured. If the measurement time does not reach the set time, electric power is not resupplied, and thus continuous use of the load can be prevented.

Further, by providing the first notification unit, it can be recognized in advance that the timer unit has finished measuring the time. For example, when the time is measured while the load is used and the power is supplied during the time, the first notification unit notifies the fixed time before the time measurement ends and the power supply is cut off. This makes it possible to know in advance that the supply of electric power will be cut off.

Further, by providing the second notification unit, it can be confirmed that the time measurement is completed. For example, when the time measurement is performed while the load is in use and the power is supplied during the time measurement, the second notification unit notifies when the time measurement ends or when the time measurement ends. As a result, it can be known that the power supply has been cut off or cut off. On the other hand, when the time measurement is performed when the load is not used, the second notification unit notifies when the time measurement ends or when the time measurement ends. From this, it can be confirmed that the use of the load has been stopped or stopped during the set time.

Further, by providing the power supply unit, when the power is removed, electric power is sent to each block by an auxiliary power supply (dry battery, etc.), and the measured value is cleared so that time measurement cannot be performed correctly. It can be prevented.

[0021]

【Example】

(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the timer device 1 includes a detection unit 3, a control unit 4, and a timer unit 5. The timer device 1 is connected between a power supply 2 and a load 7 that consumes power.

The power supply 2 outside the timer device 1 is connected to the detection unit 3 by a power line 8a. The detection unit 3 is
It is connected to the control unit 4 by a power line 8b. Further, the control unit 4 is connected to a load switch 6 outside the timer device 1 by an electric power line 8c, and the load switch 6
Are connected to the load 7. As a result, the power supply 2, the detection unit 3, the control unit 4, and the load switch 6 are connected to each power line 8
The connection is made by a, 8b, and 8c. The power lines 8a, 8b, 8c are lines for sending the power supplied from the power source 2 to the load 7.

The detection unit 3 is connected to the timer unit 5 by a detection signal line 9. The timer section 5 is connected to the control section 4 by a control signal line 10. The timer unit 5 is provided with a normally open start switch 5a. In addition, an internal circuit that determines a set time is provided inside the timer unit 5.

Each block of the timer device 1 is configured to operate as follows.

The detection unit 3 detects the state of the load 7, and when the load switch 6 is closed and the load 7 is in use, H
When the load switch 6 is opened and the load 7 is not used, the L signal is output by the detection signal line 9.

The state of the timer unit 5 includes a measurement standby state in which the time cannot be measured because the set time is not set, and a measurable state in which the set time is set and the time can be measured. In the measurable state, there are a measurement being performed while measuring time and a measurement being stopped although the measurement can be performed but the measurement is temporarily stopped.

In the timer section 5, when the start switch 5a is pressed, a set time is set by an internal circuit. By setting the set time, the supply of electric power from the control unit 4 is started, and a measurement ready state in which the usage time can be measured is set. At this time, the timer unit 5
When the signal of the detection signal line 9 is H, the time measurement is being performed, and when the signal is L, the time measurement is not performed and the measurement is stopped. After that, when the measurement time reaches the set time, the control unit 4 cuts off the electric power and enters a measurement standby state in which the time cannot be measured. Further, the timer unit 5 is configured to output an H signal in the measurable state and an L signal in the measurement standby state through the control signal line 10.

The control unit 4 is configured to supply the power sent from the power line 8b when the signal sent by the control signal line 10 is H, and to shut off the power supply when the signal is L.

Next, the operation of this embodiment having the above configuration will be described with reference to the timing chart shown in FIG. In this timing chart, the input voltage, the load voltage, the detection signal, and the control signal correspond to points 1 to 3 on the block diagram of FIG.

When the start switch 5a is turned on, the timer section 5 is in a measurable state. Further, the timer unit 5 outputs the control signal as H when it is in the measurable state. After that, when the load switch 6 is turned on and the load is in use, the detection signal becomes H. The timer unit 5
When the detection signal is H, the time is measured, and when the detection signal is L, the time is not measured. Thus, when the time when the detection signal is H, the sum of Ta, Tb, and Tc becomes the set time T1, the timer unit 5 enters the measurement standby state,
The control signal is L. As a result, the load voltage to the load is cut off.

That is, the timer unit 5 measures the time when the load 7 is in use, and stops the time measurement when the load 7 is not in use, based on the signal from the detector 3.
As a result, the time corresponding to the state of the load 7 is measured, and even if the use of the load 7 is stopped for a certain period of time, the time measurement is not continued. Further, the control unit 4 supplies electric power when the timer unit 5 is in the measurable state,
Power is cut off in the measurement standby state. In this way, the usage time of the load 7 is cumulatively measured, and the power can be shut off when the cumulative time reaches the set time.

As described above, the set time becomes the actual use time, and the power is not cut off regardless of the load use time. Therefore, the timer device measures the set time in the actual use time.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 3, the timer device 1 includes a detection unit 3, a control unit 4, a timer unit 5, and a notification unit 12 as a first notification unit. The timer device 1 includes a power source 2 and a load 7 that consumes power.
Connected between and.

The power supply 2 outside the timer device 1 is connected to the detection section 3 by a power line 8a. The detection unit 3 is
It is connected to the control unit 4 by a power line 8b. Further, the control unit 4 is connected to a load switch 6 outside the timer device 1 by an electric power line 8c, and the load switch 6
Are connected to the load 7. As a result, the power supply 2, the detection unit 3, the control unit 4, and the load switch 6 are connected to each power line 8
The connection is made by a, 8b, and 8c. The power lines 8a, 8b, 8c are lines for sending the power supplied from the power source 2 to the load 7.

The detection section 3 is connected to the timer section 5 by a detection signal line 9. The timer section 5 is connected to the control section 4 by a control signal line 10. The timer unit 5 is provided with a normally open start switch 5a. In addition, an internal circuit that determines a set time is provided inside the timer unit 5. In addition, the timer unit 5
Are connected to the control unit 4 by the control signal line 10.
The timer unit 5 is connected to the notification unit 12 by the notification signal line 11.

Each block of the timer device 1 is configured to operate as follows.

The detecting section 3 detects the state of the load 7, and when the load switch 6 is closed and the load 7 is in use, H
When the load switch 6 is opened and the load 7 is not used, the L signal is output by the detection signal line 9.

The states of the timer section 5 include a measurement standby state in which the time cannot be measured because the set time is not set, and a measurable state in which the set time is set and the time can be measured. In the measurable state, there are a measurement being performed while measuring time and a measurement being stopped although the measurement can be performed but the measurement is temporarily stopped.

In the timer section 5, when the start switch 5a is pressed, a set time is set by an internal circuit. By setting the set time, the supply of electric power from the control unit 4 is started, and a measurement ready state in which the usage time can be measured is set. At this time, the timer unit 5
When the signal of the detection signal line 9 is H, the time measurement is being performed, and when the signal is L, the time measurement is not performed and the measurement is stopped. After that, when the measurement time reaches the set time, the control unit 4 cuts off the electric power and enters a measurement standby state in which the time cannot be measured. Further, the timer unit 5 is configured to output an H signal in the measurable state and an L signal in the measurement standby state through the control signal line 10. Further, the timer unit 5 outputs a signal of H to the notification signal line 11 when the measurement time reaches the set time and outputs an L signal to the notification signal line 11 when the measurement time reaches the set time, and transmits the signal to the notification unit 12. .

The control unit 4 is configured to supply the power sent from the power line 8b when the signal sent by the control signal line 10 is H, and to shut off the power supply when the signal is L.

The notification section 12 sounds the buzzer when the signal sent from the timer section 5 through the notification signal line 11 is H, and stops the buzzer when the signal is L.

Next, the operation of the present embodiment having the above configuration will be described with reference to the timing chart shown in FIG. In this timing chart, the input voltage, the load voltage, the detection signal, the control signal, and the notification signal correspond to points 1 to 3 on the block diagram of FIG.

When the start switch 5a is turned on, the timer section 5 is in a measurable state. Further, the timer unit 5 outputs the control signal as H when it is in the measurable state. Then, when the load switch 6 is turned on and the load is in use, the detection signal becomes H. The timer unit 5 is
When the detection signal is H, the time is measured, and when the detection signal is L, the time is not measured. Thus, the time when the detection signal is H, the sum of Ta, Tb, and Tc is the set time T1.
Then, the timer unit 5 enters the measurement standby state and sets the control signal to L. As a result, the load voltage to the load is cut off.

Further, the timer unit 5 sets the notification signal to H before Td seconds before the measurement time reaches the set time T1, and sets it to L when it reaches T1.

That is, the timer section 5 measures the time when the load 7 is in use, and stops the time measurement when the load 7 is not in use, based on the signal from the detection section 3.
As a result, the time corresponding to the state of the load 7 is measured, and even if the use of the load 7 is stopped for a certain period of time, the time measurement is not continued. Further, the control unit 4 supplies electric power when the timer unit 5 is in the measurable state,
Power is cut off in the measurement standby state. In this way, the usage time of the load 7 is cumulatively measured, and the power can be shut off when the cumulative time reaches the set time.

As described above, the set time becomes the actual use time, and the power is not cut off regardless of the use time of the load 7.

Further, since the buzzer sounds immediately before the power supply is cut off, the power cutoff can be known in advance, and it is possible to prevent the load 7 from being suddenly cut off during use of the load 7. .

(Third Embodiment) A third embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 5, in the timer device 1, the detection unit 3, the control unit 4, the timer unit 5, the notification unit 12 as the first notification unit, the display unit 14 as the second notification unit, and the power supply unit 16. , A stop timer unit 17. The timer device 1 is connected between a power supply 2 and a load 7 that consumes power.

The power supply 2 outside the timer device 1 is connected to the detection unit 3 by the power line 8a. The detection unit 3 is
It is connected to the control unit 4 by a power line 8b. Further, the control unit 4 is connected to a load switch 6 outside the timer device 1 by an electric power line 8c, and the load switch 6
Are connected to the load 7. As a result, the power supply 2, the detection unit 3, the control unit 4, and the load switch 6 are connected to each power line 8
The connection is made by a, 8b, and 8c. The power lines 8a, 8b, 8c are lines for sending the power supplied from the power source 2 to the load 7.

The detection section 3 is connected to the timer section 5 and the stop timer section 17 by a detection signal line 9.

Inside the timer section 5, an internal circuit for determining a set time is provided. Also, the timer unit 5
A normally-open start switch 5a is connected to. Further, the timer unit 5 is connected to the notification unit 12 by the notification signal line 11.

Inside the stop timer unit 17, an internal circuit for setting a set time is provided. A start switch 5a is connected to the stop timer unit 17. Further, the stop timer 17 is provided with the display signal line 1
3, the display unit 14 is connected.

Further, a timer signal line 5b is connected to the AND circuit from the timer section 5, and a stop timer signal line 17a is connected to the AND circuit from the stop timer section 17. The output of the AND circuit is connected to the control unit 4 by the control signal line 10.

The power source 2 is connected to the power line 8d by
It is connected to the power supply unit 16. The power supply unit 16 connects the timer unit 5 and the stop timer unit 1 by the power supply line 15.
7, the notification unit 12, and the display unit 14 are connected. The power supply line 15 is a line that supplies power for operating each block.

Each block of the timer device 1 is configured to operate as follows.

The detection unit 3 detects the state of the load 7, and when the load switch 6 is closed and the load 7 is in use, H
When the load switch 6 is opened and the load 7 is not used, the L signal is output by the detection signal line 9.

In the states of the timer unit 5 and the stop timer unit 17, the set time is not set, so that the time cannot be measured, and the set time is set and the time can be measured. There are states. In the measurable state, there are a measurement being performed while measuring time and a measurement being stopped although the measurement can be performed but the measurement is temporarily stopped.

By pressing the start switch 5a when the stop timer section 17 is in the measurement standby state, the timer section 5 and the stop timer section 17 are separated from each other.
The set time is set by each internal circuit. When the set time is set, the power supply from the control unit 4 is started, and the time becomes measurable so that the time can be measured. At this time, when the signal of the detection signal line 9 is H, the timer unit 5 is in the process of measuring the time, and when the signal of the detection signal line 9 is L, the time is not in the measurement. On the other hand, when the signal on the detection signal line 9 is L, the stop timer unit 17 is in the process of measuring the time, and when the signal of the detection signal line 9 is H, the time is not in the measurement. After that, when either one of the measurement times reaches the set time, the power is cut off by the control unit 4. Further, when the measurement time of the stop timer unit 17 reaches the set time, both are in the measurement standby state.
As a result, it becomes possible to re-supply the electric power by the start switch 9.

Further, the timer section 5 outputs an H signal in the measurable state and an L signal in the measurement standby state through the timer signal line 5b. On the other hand, the stop timer unit 17 outputs an H signal in the measurement possible state and an L signal in the measurement standby state to the stop timer signal line 17
Output by a. These outputs of the timer signal line 5b and the stop timer signal line 17a are
It is configured to take the ND and output it to the control signal line 10.

Further, the timer section 5 outputs an H signal to the notification signal line 11 when the measurement time reaches a set time, and outputs an L signal to the notification signal line 11 when the measurement time reaches the set time. Communicate to. The notification unit 12 is configured to sound the buzzer when the signal sent from the notification signal line 11 is H and stop the buzzer when the signal is L.

The stop timer section 17 outputs an L signal when the measurement is possible and an H signal when the measurement time reaches a set time.
Is output to the display signal line 13 and transmitted to the display unit 14. The display unit 14 is configured to turn on the light emitting diode when the signal sent from the display signal line 13 is H, and turn off the light emitting diode when the signal is L.

The control unit 4 is configured to supply the power sent from the power line 8b when the signal sent by the control signal line 10 is H, and to shut off the power supply when the signal is L.

The power supply section 16 sends power from the power supply line 8d when the power is sent from the power supply line 8d, and when the power is not sent from the power supply line 8d, the power source of the dry battery as the auxiliary power supply. Is configured.

Next, the operation of this embodiment having the above configuration will be described with reference to the timing chart shown in FIG. In this timing chart, the input voltage, the load voltage, the detection signal, the control signal, the notification signal, the display signal, and the power supply correspond to points 1 to 3 on the block diagram of FIG.

When the start switch 5a is turned on, the timer unit 5 and the stop timer unit 17 are ready for measurement. Also, the timer unit 5 and the stop timer unit 1
When 7 and 7 are in the measurable state, the control signal becomes H. Then, the detection unit 3 sets the detection signal to H when the load switch 6 is turned on and the load is in use. As a result, the timer unit 5 measures the time when the detection signal is H and does not measure the time when the detection signal is L. In this way, when the time when the detection signal is H and the sum of Ta, Tb, and Tc becomes the set time T1, the timer unit 5 enters the measurement standby state and the control signal becomes L. As a result, the load voltage to the load is cut off.

On the other hand, the stop timer section 17 measures the time when the detection signal is L and does not measure the time when the detection signal is H. As described above, when the total of Td, Te, and Tf when the detection signal is L reaches the set time T2, the stop timer unit 17 enters the measurement standby state and sets the display signal to H. Also, the start switch 5a can be input.

Further, the timer section 5 sets the notification signal to H before Td seconds before the measurement time reaches the set time T1, and sets it to L when it reaches T1.

That is, the timer unit 5 measures the time when the load 7 is in use, and stops the time measurement when the load 7 is not in use, based on the signal from the detector 3.
As a result, the time corresponding to the state of the load 7 is measured, and even if the use of the load 7 is stopped for a certain period of time, the time measurement is not continued. Further, the control unit 4 supplies electric power when the timer unit 5 and the stop timer unit 17 are in the measurable state, and cuts off the electric power when either of them becomes the measurement standby state.

As described above, the set time of the timer unit 5 becomes the actual use time, and the power is not cut off regardless of the use time of the load 7.

Further, the stop timer unit 17 measures the accumulated time of the stop time of the load 7, and when the measured time reaches the set time, the start switch 5a can re-supply the electric power. Even if the usage time of the load 7 for one time does not reach the set time and the use of the load 7 is stopped for a long time, the set time is reset when the load 7 is used next time, so the available time Does not become shorter. Further, when the load 7 is continuously used, the load 7 cannot be used until the measured value of the stop timer unit 17 reaches the set time after the lapse of the initially set use time, and the continuous use of the load 7 is prevented. You can

Further, by providing the informing unit 12 for informing the load 7 that the power is cut off, when the power to the load 7 is cut off, this can be recognized in advance. This prevents the user of the load 7 from suddenly cutting off the power supply and stopping the load 7 while using the load 7.

Further, when the measured time of the stop timer unit 17 reaches the set value and the power can be re-supplied to the load 7 by pressing the start switch 5a, the display unit 14 is provided for notifying this. Thus, it is possible to recognize that the power can be re-supplied to the load 7 by the start switch 5a, and it is possible to confirm that the stop time of interruption of the electric power supply to the load 7 has elapsed.

When the power source 2 to the load 7 is disconnected,
By providing the power supply unit 16 for holding the accumulated measured value, it is impossible to accurately measure the actual use time or the cutoff time, such as the time measurement being distorted when the power supply 2 is disconnected. It can be prevented.

The circuit diagram of each block is shown in FIG.
This is shown by FIG.

[0075]

As described above, according to the present invention,
The detection unit determines whether or not there is a load, the timer unit measures time when the load is used, and the control unit supplies power when the timer unit measures time. As a result, cumulative measurement of the time the load is used is performed, and power can be supplied during the time measurement. Then, when the usage time of the load reaches the set time, the time measurement is ended and the power is cut off. In this way, the load usage time is cumulatively measured, and the power can be shut off when the measurement time reaches the set time.

Therefore, unlike the conventional case, the power supply to the load is not automatically cut off when the time set at the beginning elapses regardless of the usage status of the load. It becomes a timer device that is used in actual use time.

Further, by providing the timer section for measuring the used time and the stop timer section for measuring the unused time, the used time can be cumulatively measured and the unused time can be cumulatively measured to continuously load the load. When it is used for, the load cannot be used until the measured value of the stop timer reaches the set time after the lapse of the initially set use time, and continuous use of the load can be prevented. Furthermore, even if the load usage time does not reach the set time for one time and the load usage is stopped for a long time, the set time is reset when the load is used next time, so the available time It will never become shorter.

Further, by providing the first notifying unit, it can be recognized in advance that the timer unit has finished measuring the time. With this, it is possible to recognize in advance that the power to the load will be cut off, and it is possible to prevent the load from being stopped suddenly when the load user is using the load.

Further, by providing the second notification section, it can be confirmed that the time measurement is completed. As a result, it is possible to recognize that power can be re-supplied to the load by the start switch, or to confirm that the stop time of interruption of power supply to the load has elapsed.

Further, by providing the power supply unit, it is possible to prevent the measured value from being cleared and the time being not correctly measured when the power supply is removed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a timing chart showing the operation of the first embodiment of the present invention.

FIG. 3 is a block diagram showing a second embodiment of the present invention.

FIG. 4 is a timing chart showing the operation of the second embodiment of the present invention.

FIG. 5 is a block diagram showing a third embodiment of the present invention.

FIG. 6 is a timing chart showing the operation of the third embodiment of the present invention.

FIG. 7 is a circuit diagram showing a detection unit of the present invention.

FIG. 8 is a circuit diagram showing a control unit of the present invention.

FIG. 9 is a circuit diagram showing a timer unit, a stop timer unit, a notification unit (first notification unit), a display unit (second notification unit), and a start switch of the present invention.

FIG. 10 is a circuit diagram showing a power supply unit of the present invention.

[Explanation of symbols]

 1 timer device 2 power supply 3 detection unit 4 control unit 5 timer unit 5a start switch 5b timer signal line 6 load switch 7 load 9 detection signal line 10 control signal line 11 notification signal line 12 notification unit (first notification unit) 13 display signal Line 14 Display unit (second notification unit) 15 Power line 16 Power unit 17 Stop timer unit 17a Stop timer signal line

Claims (5)

[Claims] 1. A timer device, which is connected between a power source and a load and is used, which detects a load and outputs a detection signal indicating the state of the load, and a detection signal output by the detection unit. Based on the above, the time corresponding to the above state is measured, and the power supply is controlled based on the timer unit that outputs as a control signal whether or not the set time value has been reached, and the control signal output by the timer unit. A timer device comprising a control unit. 2. A timer unit connected between a power source and a load and used, and a detection unit for detecting the presence or absence of a load and outputting a detection signal indicating the state of the load, and a detection signal output by the detection unit. Based on the above, the time is measured when there is a load, the time measurement is stopped when there is no load, and a timer unit that outputs as a timer signal whether or not the set time value has been reached, and the detection unit outputs Based on the detection signal, the time is measured when there is no load, the time measurement is stopped when there is a load, and a stop timer unit that outputs whether or not the set time value is reached as a stop timer signal, A timer device comprising: a control unit for controlling power supply based on each signal output from the timer unit and the stop timer unit. 3. A first notification unit that outputs a first notification signal a predetermined time before the timer unit reaches the set time value and notifies that the set time value is reached based on the first notification signal. The timer device according to claim 1, wherein the timer device is provided. 4. A second notification unit is provided, which outputs a second notification signal when the timer unit reaches a set time value and notifies that the set time value has been reached based on the second notification signal. The timer device according to claim 1, 2, or 3. 5. The timer device according to claim 1, further comprising a power supply unit capable of holding a measured value of the timer unit even when the power supply is disconnected.