JPS6242393Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a time signal transmitting device that counts reference signals and switches a switch at a predetermined time.

Conventional time signal transmitting devices of this type have a system in which a reference signal from a crystal oscillator or the like is simply down-converted and supplied to a clock device, and the clock device operates a driving device circuit and an output relay.

According to such a conventional time signal transmitting device,
It is necessary to increase the capacity of the storage battery for operation during a power outage, which has the disadvantage of requiring a large amount of overall space and being expensive.

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional technology. It consumes less power, allows the storage battery to be significantly smaller, and has a simple circuit configuration, stable operation, and low cost. A signal transmitting device is provided.

Next, an embodiment of the time signal transmitting device of this invention will be explained with reference to the drawings. FIG. 1 is a circuit diagram showing one embodiment, and 1 in FIG. This is a reference signal transmitter that utilizes the natural vibration of the child.

This reference signal transmitter 1 changes the oscillation frequency to, for example, a signal a of one pulse per minute (24×60+
1) The output side of the reference signal transmitter 1 on the side that outputs the signal a is connected to the fixed terminal 21 of the changeover switch 2, and
The output side of the reference signal transmitter 1 that outputs the signal b is connected to the fixed terminal 22 of the changeover switch 2.

The movable terminal 20 of the changeover switch 2 is connected to the clock device section 3.
connected to the input side of the This clock device section 3
measures the regular time using the above-mentioned signal a of one pulse per minute, and as described later, when the power is restored,
The signal b of (24×60+1) pulses per minute causes time to advance by one clock cycle per minute. Signals are exchanged between the clock device section 3 and the time setting section 4.

This time setting section 4 sets a time for operating a self-holding circuit 6, which will be described later, at a predetermined time, and is made of, for example, a well-known pin board switch.

The output side of the clock device section 3 is connected to the input side of the drive circuit section 5. This drive circuit section 5 is driven by commands from the clock device section 3 and time setting section 4, such as ON signals as shown in FIGS. 2A and 3A, and FIGS. 2B and 3B. This transmits an OFF signal as shown in the figure below.

The output side of the drive circuit section 5 is connected to one end of each of the energizing coil 61 and the deenergizing coil 62 of the self-holding circuit 6.
The other ends of 1 are commonly connected.

The self-holding circuit 6 has a contact 60 in addition to the energizing coil 61 and the deenergizing coil 62,
When the energizing coil 61 is energized and the deenergizing coil 62 is de-energized, the contact 60 is closed; conversely, when the de-energizing coil 62 is energized and the de-energizing coil 61 is de-energized, this contact is closed. 60 is designed to be in an open state.

The contact 60 is connected to the output terminal 14 via an output contact 70 of a timer circuit section 7, which will be described later.

On the other hand, 8 is an AC power supply, and the primary winding of the power transformer 10 is connected to this AC power supply.
The secondary winding of this power transformer 10 is connected to the input side of a constant voltage power supply 11.

The constant voltage power supply device 11 is configured to output, for example, DC5V to its output side. A storage battery 13 is connected to the output side of the constant voltage power supply device 11 via a reverse current blocking diode 12.

In this case, the anode of the reverse current blocking diode 12 is connected to the positive output side of the constant voltage power supply 11,
The cathode is connected to the positive electrode of the storage battery 13.

The output side of the constant voltage power supply device 11, point c, is connected to the drive circuit section 5, the timer circuit 7, and the self-holding circuit 6.
are connected to a common connection point between the energizing coil 61 and the deenergizing coil 62, respectively.

Further, an output point d of the storage battery 13 is connected to the reference signal transmitter 1 and the clock device 3.

A coil of a power failure detection circuit 9 is connected to the AC power supply 8. This power failure detection circuit 9 has a coil and a contact 90, and this contact 90 is connected to the timer circuit section 7.

In the timer circuit section 4, the contact 90 of the power failure detection circuit 9 is closed at the moment when the AC power supply 8 generates a voltage.
Switch the movable terminal 20 of the changeover switch 2 to the fixed terminal 22 side, count the signal b of the reference signal transmitter 1,
When the number reaches, for example, (1440+1), the fixed terminal 22 is opened and the movable terminal 20 comes into contact with the fixed terminal 21. Due to this contact, the signal a from the reference signal transmitting section 1 is introduced into the timer circuit section 7, but the count value remains at the above-mentioned (1440+1) count and continues in this state. Next, if a power outage occurs while the above-mentioned (1440+1) count is being held, the counting time is reset to zero. However, the changeover switch 2 is not switched. Then, when the power is restored, selector switch 2 is turned on as described above.
is switched to start counting of signal b. Note that the contact 70 of the timer circuit section 7 is configured to be open while the movable terminal 20 of the changeover switch 2 is connected to the fixed terminal 22.

FIG. 2 is a diagram for explaining the operation of the time signal transmitting device of this invention configured as described above, and FIG. 2A and FIG. 3A are diagrams showing the self-holding circuit 6.
2B and 3B show the excitation state of the deenergizing coil 62, and FIGS. 2C and 3C show the state of the output terminal 14. .

In particular, this Figure 3 shows the operating state in the event of a power outage from 10:00 to 14:00, for example.
The period from 14:00 to 16:00 shows the operation of power outage recovery, and some parts are enlarged for explanation.

Next, the operation of the device of this invention will be explained.

Now, for example, the time setting unit 4 outputs an ON signal so that the contact 60 of the self-holding circuit 6 closes at 8:00 and 18:00 as shown in FIG. 2A, and at 12:00 as shown in FIG. 2B. The setting is made so that an OFF signal is sent so that the contact 60 closes at 20:00.

Further, the voltage supplied from the AC power supply 8 is converted into a DC voltage by a power transformer 10 and a constant voltage power supply 11. For example, the voltage of DC5V is sent to the drive circuit section 5, the self-holding circuit 6, and the timer circuit via point c. 7 and charges the storage battery 13 via the reverse current blocking diode 12, so that the storage battery 13 is always
It is charged to DC5V.

The voltage of the storage battery 13 is supplied to the reference signal transmitting section 1 and the clock device section 3 via the point d, and even if the AC power supply 8 fails, the voltage supplied from the point d is supplied from the storage battery 13.

However, since the voltage from the storage battery 13 is blocked by the reverse current blocking diode 12, no voltage is supplied to the constant voltage power supply 11, timer circuit section 7, drive circuit section 5, and self-holding circuit 6 during a power outage.

In such a power outage state, power is not supplied to the timer circuit section 7, so the contact 70 is closed.
Further, the movable terminal 20 of the changeover switch 2 is in a closed state with the fixed terminal 21, and as will be described in detail later, the contact 70 and the movable terminal 20 and the fixed terminal 21 of the changeover switch 2 are opened for a certain period of time after the power is restored. It's becoming like that.

Now, to explain the case where the AC power supply 8 is normal, as shown in FIG. It is introduced into the device section 3.

This clock device section 3 operates for 24 hours, that is, 24×60
= 1440 pulses per cycle, and as shown in FIG.
By transmitting an ON signal via the energizing coil 61 of the self-holding circuit 6, the energizing coil 61 of the self-holding circuit 6 is energized for a short time, and the contact 60 is closed.

As a result, the output terminal 14 is connected to the contact 60 and the contact 7.
0 as shown in FIG. 2C.

At 12 o'clock, the time setting section 4 similarly transmits an OFF signal from the clock device section 3 via the drive circuit section 5 to turn off the deenergizing coil 62 of the self-holding circuit 6.
is excited for a short time, the contact 60 is opened, and the output terminal 14 is turned OFF as shown in FIG. 2C.

Similarly, at 18:00, the energizing coil 61 of the self-holding circuit 6 is excited by an ON signal from the timepiece unit 3 via the drive circuit unit 5, the contact 60 is closed, and the output terminal 14 is also connected to the contacts 60 and 70. At 20:00, the deenergizing coil 62 of the self-holding circuit 6 is excited by an OFF signal from the clock device section 3 via the drive circuit 5, the contact 60 is opened, and the output terminal 14 is also opened. The above operations are performed in sequence.

Next, a case where the AC power supply 8 experiences a power outage and a case where the power outage is restored will be described based on FIGS. 1 and 3.

First, at 8 o'clock, the self-holding circuit 6 is activated by an ON signal obtained from the clock device section 3 via the drive circuit section 5.
The energizing coil 61 is excited, the contact 60 is closed, and the output terminal 14 is in a closed state via the contact 60 and the contact 70.

Next, in this state, if the AC power supply 8 is out of power from 10:00 to 14:00, voltage is supplied from the storage battery 13 to the reference signal transmitting section 1 and the clock device section 3 through point d during this period, and the clock device section 3 works, but
Drive circuit section 5, self-holding circuit 6, timer circuit section 7
Since no voltage is supplied to the storage battery 13, the consumption of the storage battery 13 is low.

Even at 12 o'clock, no voltage is supplied to the drive circuit section 5, and therefore the normally transmitted OFF signal is not output, the contact 60 of the self-holding circuit 6 remains closed, and the contact 70 is also closed. Therefore, the output terminal 14 becomes in a closed state, and the state set by the time setting section 4 becomes incorrect.

Next, at the moment when the power is restored at 2:00 p.m. and the AC power supply 8 is started, the drive circuit section 5, self-holding circuit 6,
A voltage is supplied to the timer circuit unit 7 by the constant voltage power supply device 11 via point c.

Further, when the AC power supply 8 recovers from the power outage, the contact 90 of the contact 9 of the power outage detection circuit 9 is closed, and the timer circuit section 7 starts driving. That is, the changeover switch 2 and the contact 70 are switched to the opposite side from the state shown in FIG.

Movable terminal 20 and fixed terminal 22 of changeover switch 2
By closing the circuit, the reference signal transmitting section 1 sends a signal with a high frequency of (1440+1) to the clock device section 3 and the timer circuit section 7 in one minute, and after one minute, the clock device section 3 reaches exactly ( It receives pulses equivalent to 24 hours + 1 minute), completes one revolution, and adjusts to the normal time.

When the time reaches the normal time after one round, the movable terminal 20 of the changeover switch 2 is switched to the fixed terminal 21 side by a signal from the timer circuit section 7. However,
At the same time, contact 70 is closed and normal operation is resumed. During this time, the contact 60 of the self-holding circuit 6 is turned ON and OFF as shown in the operation at the time of power failure recovery in FIG. 3, but the contact 70 is open, and the output terminal 14 remains open.

As detailed above, according to this invention, there is no need to supply power from the storage battery to the drive circuit, timer circuit, etc. that consume a relatively large amount of power during a power outage. can be made significantly smaller and at a lower cost.

In addition, when the power is restored, the same operation as normal operation is performed.
It operates at high speed with one cycle of signals, and since the self-holding circuit in an out-of-order state returns to its original state, it has many advantages such as stable operation.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an embodiment of the time signal transmitting device of this invention, and FIGS. 2A to 2C and 3A to 3C respectively explain the operation of the same time signal transmitting device. This is a diagram for 1... Reference signal transmitter, 2... Changeover switch,
3... Clock device section, 4... Time setting section, 5... Drive circuit section, 6... Self-holding circuit, 7... Timer circuit section, 8... AC power supply, 9... Power outage detection circuit, 1
1... Constant voltage device, 12... Backflow blocking diode, 13... Storage battery, 14... Output terminal.

Claims (1)

[Scope of utility model registration request] A first pulse signal for measuring the regular time; and a second pulse signal for advancing the clock device part by one clock cycle in addition to the predetermined time at a predetermined time when recovery from a power outage is detected. a reference signal transmitter that outputs and transmits a signal; a changeover switch that switches between the first pulse signal and the second pulse signal from the reference signal transmitter; a power failure detection circuit that detects a power outage and recovery from an AC power supply; When the power failure detection circuit detects recovery from the power failure, it causes the changeover switch to select the second pulse signal of the reference signal transmitter and opens the timer output contact, and then after counting this second pulse signal a predetermined number of times. a timer circuit unit that causes the changeover switch to select the first pulse signal and simultaneously closes the timer output contact;
a time setting section that generates an on signal at a predetermined time and an off signal at a predetermined time different from the time when the on signal is generated; and a time setting section that generates the reference signal via the changeover switch every clock cycle. a clock device unit that counts the first or second pulse signal from the time setting unit, generates an on signal when an on signal is introduced from the time setting unit, and outputs an off signal when an off signal is introduced from the time setting unit; , the ON signal from the clock device section energizes the energizing coil to turn on the self-holding contact to generate an output via the timer output contact, and the OFF signal from the clock device section energizes the deenergizing coil. power is supplied only to the self-holding circuit that opens the self-holding contact and stops the generation of output via the timer output contact, the reference signal transmitter, and the clock device, regardless of the presence or absence of an AC power outage. A time signal transmitter equipped with a battery.