JPH0345618B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a pattern switch that individually or arbitrarily selects and collectively controls on/off loads such as lighting equipment connected to a plurality of parent devices. The purpose is to provide a pattern switch structure that is easy to operate and easy to install wiring.

Embodiments of the present invention will be described in detail below with reference to the drawings. Figure 1 shows the overall block diagram, and includes multiple parent devices.
A ₁ to An, and child devices B 1 to Bn connected to the master devices A ₁ to An through dedicated lines 6 are provided in correspondence with the parent devices A ₁ to An, respectively. Each main unit A is connected in series with a load 2 such as a lighting fixture, and further connected to an AC power source 1. The load 2 can be turned on and off by operating the operation switch provided on the master unit A, and the load 2 can be controlled on and off by the operation switch of the slave unit B, which is connected in parallel with the operation switch of the master unit A. It's summery. Reference numeral 21 denotes a pattern switch body for controlling on/off the loads 2 connected to each parent unit _A1 to An individually or all at once.By operating this pattern switch body 21, a preset load 2 can be controlled as described later. For example, they can be turned on and off all at once. Reference numeral 22 denotes a signal line connecting each slave device B ₁ to Bn to the pattern switch main body 21 . Note that the specific configuration and operation of the master device A and slave device B will be described later.

Figure 2 shows a specific circuit diagram of each child device B ₁ to Bn,
FIG. 3 shows a circuit diagram of the main part of the pattern switch main body 21. As shown in Fig. 2, slave unit B is connected to dedicated line 6 from parent unit A, and operates diode bridge DB ₂ and load 2 to depolarize the DC voltage as a transmission signal from parent unit A. It is composed of a display circuit 7 and the like that displays the status (on or off). The display circuit 7 is a Zener diode
It is composed of ZD ₄ , ZD ₅ , transistors Tr ₄ , Tr ₅ , light emitting diodes LED ₃ , LED ₄ , etc. load 2
If the load 2 is in the off state, for example, the green light emitting diode LED ₃ lights up, and if the load 2 is in the on state, for example, the red light emitting diode LED ₄ lights up, and the display corresponds to the operating state of the load 2. That's what I do. By the way, the line voltage Vo of slave unit B is
Zener voltage of Zener diode ZD ₄ , ZD ₅
The relationship with Vz ₄ and Vz ₅ is set as follows. In other words, the value of the DC voltage transmitted from parent unit A differs depending on the operating state of load 2, and is higher when load 2 is off, and lower when load 2 is on than when off. . Therefore,
The line voltage of slave unit B when load 2 is off is
Let Vof be the line voltage of slave unit B when load 2 is on, and Von be the line voltage of slave B when load 2 is on.

Vof＞Vz ₄ ＞Vz ₅ Von＞Vz _5Next , load 2 connected to each parent unit A ₁ to An
This section explains the all-on switch function that turns on all the devices all at once. In FIG. 3, S ₁ to Sn are multiple setting switches such as deep switches,
When selecting arbitrary loads 2 in advance and turning them on all at once, the setting switches S ₁ to Sn corresponding to each load 2 are closed. Ry ₁ to Ryn are relays connected in series with setting switches S ₁ to Sn, respectively. Further, the bases of the transistors Tr ₁₁ to Trn are connected together and connected to the pattern switch PSW. When each of the setting switches S ₁ to Sn is in a closed state, they are interlocked with this pattern switch PSW, and the loads 2 are simultaneously turned on by operating one pattern switch PSW. If a certain setting switch
If S ₁ to Sn are open, the pattern switch is activated.
Does not work with PSW. Further, one end of each relay Ry ₁ -Ryn is connected to the output terminal of each comparator COP ₁ -COPn, and when the output terminal is at L level, the load 2 is turned on by operating the pattern switch PSW.
AC100V power is rectified by diode bridge DB ₃ , smoothed by capacitor C ₁₁ to obtain DC voltage, this voltage is divided by resistors R ₁₂ and R ₁₃ to obtain reference voltage V ₁ , and this reference voltage V ₁ is Each comparator COP ₁ ~
Connected to the non-inverting input terminal of COPn. On the other hand, the inverting input terminal is connected to the transistor Tr ₅ of each slave device B ₁ to Bn.
It is connected to the collector of

The operation will be explained below. For ease of explanation, all the setting switches S ₁ to Sn are closed, and all the loads 2 are turned on at the same time. Now, when the load 2 is off, the transistor Tr ₅ of the child unit B is off, so a voltage of approximately Vof is applied to the inverting input terminal of the comparator COP. still,
Assuming that the load 2 is in the on state, the collector of the transistor Tr ₅ of the child unit B corresponding to the load 2 is approximately OV. Further, the reference voltage V ₁ of the comparator COP is appropriately set such that V ₁ <(1/2 to 1/3) Vo.

Note that the line voltage Vo changes between the on state and off state of the load 2, but its value is known in advance, and the line voltage Vo varies from (1/2 to
By having a certain width of 1/3), the reference voltage
Comparator COP can be operated for V ₁ . If slave unit B ₁ is in the off state, the input voltage of comparator COP ₁ is high level voltage Vb ₁
(≒Vof), and since Vb ₁ > V ₁ , the output terminal of comparator COP ₁ is at L level (ground level)
It is. In the figure, a, a', . . . mean that they are connected in a corresponding manner. If slave device _B2 is in the on state, collector voltage _Vb2 of transistor _Tr5 is at L level, and the relationship _Vb2 < _V1 .
The output terminal of the comparator _COP2 becomes H level.
Others are similar. When the pattern switch PSW is pressed in this state, the output terminal of the comparator COP is set to the L level and the corresponding slave unit B (for example, slave unit B ₁ with load 2 in the OFF state) is connected to the relay (for example,
Ry ₁ ) operates, and contact ry ₁ of relay Ry ₁ connected in parallel with operation switch SW ₂ of slave unit B ₁ closes, turning load 2 on. Therefore, this pattern switch PSW has an all-on switch function, that is, it is an all-on switch.
This will configure PSWon. On the contrary,
When configuring an all-off switch PSWoff that turns off the loads 2 all at once using one operating switch, that is, a pattern switch, a separate circuit is provided as shown in Figure 3, and the input side of the comparator COP, that is, the reference voltage V ₁ is input to the inverting input terminal, the output voltage of the collector of transistor Tr ₅ of slave unit B is input to the non-inverting input terminal, and the contact of the off relay is connected in parallel with operation switch SW ₂ of slave unit B. By providing this, an all-off switch function can be configured. Also, for example, if a certain load 2 is not to be linked with the pattern switch PSW,
The setting switch corresponding to the load 2, for example, _S3 may be left open.

FIG. 4 shows a perspective view of a pattern switch main body 21 configured with six circuits (controlling six loads 2).A flange 23 is formed around the front surface of the pattern switch main body 21, and a On both sides, an all-on switch PSWon and an all-off switch PSWoff are installed side by side. Further, above the switches PSWon and PSWoff, six sets of individual operation switches 24 (not shown in the circuit diagram) and display units 25 for displaying the status of the load 2 are arranged above the individual operation switches 24. has been done. Individual operation switch 24 is slave unit B
Operation switch SW ₂ , pattern switch
Rather than operating all at once using PSW, arbitrary loads 2 are operated. The display section 25 includes a green light emitting diode 25 ₁ and a red light emitting diode 25 ₂
When the load 2 is off, the light emitting diode 25 ₁ lights up, and when the load 2 is on, the red light emitting diode 25 ₂ lights up to display the operating state of the load 2. At the center of the back of the pattern switch main body 21, an integrated deep switch-type multiple setting switch S is arranged, in which the load 2 is arbitrarily selected and turned on or off in advance. parent device A
Or a terminal section 26 connected to slave device B via signal line 22
However, six circuits are formed in parallel in the horizontal direction. 27
is an AC 100V power terminal for supplying power to the circuit inside the pattern switch main body 21, and is arranged on the upper back side.

FIG. 5 shows a schematic wiring diagram of the master unit A, slave unit B, and the pattern switch body 21, and slave unit B may or may not be located between the master unit A and the pattern switch body 21. .

FIG. 6 shows a specific circuit diagram of a parent device A and a child device B, and the pair of parent device A and child device B will be explained for easy understanding. A two-wire dedicated line 6 is led out from the parent device A, and a plurality of slave devices B, for example, several devices, are connected to this dedicated line 6. The parent unit A is composed of a triac TR which is a switching element for controlling the load 2 on and off, a power supply circuit 15, a control circuit 3, a signal voltage generation circuit 4, a current limiting circuit 5, and the like. A series circuit of a load 2 such as a lighting fixture or a ventilation fan and a triac TR is connected to an AC power source 1. In addition, a diode bridge DB ₁ of the power supply circuit 15 is connected in parallel with the AC power supply 1, and the output of the diode bridge DB ₁ is supplied as a power source to the signal voltage generation circuit 4, and is smoothed by a capacitor C ₁ to be connected to the transistor Tr. ₃ and zener diode
It is supplied as power to the control circuit 3 via a stabilizing circuit consisting of _ZD1 . The control circuit 3 includes an operation switch SW ₁ to control the load 2 on and off, a flip-flop circuit using a two-winding latching relay Ry, and a flip-flop circuit using a two-winding latching relay Ry, and switching a contact r ₂ by the reversal operation of the latching relay Ry to control the operating state of the load 2. Light emitting diode displaying LED ₁ , LED ₂ and relay
It consists of a contact _r1 etc. connected to the gate to control the triac TR by the inversion operation of Ry. The signal voltage generation circuit 4 generates a DC voltage according to the on/off state of the load 2 by the operation switch SW ₁ as a transmission signal to the slave unit B, and includes a transistor Tr ₁ and two Zener diodes with different Zener voltages V. It consists of ZD ₂ and ZD ₃ . Further, the transmission signal consisting of a DC voltage also serves as a power source for slave unit B. The current limiting circuit 5 is composed of a current detection resistor R ₁ , a transistor Tr ₂ and the like. This current limiting circuit 5 is configured to short-circuit the dedicated lines 6 and 6, which are signal lines, when the operation switch SW ₁ is operated, so a large current flows, so the current limiting circuit 5 is configured to short-circuit the dedicated lines 6, 6, which are signal lines, so that a large current flows. It is a reduced type configuration that exhibits characteristics. Of course, if the heat generation of the control transistor Tr ₁ is not a problem, the operation will be the same even if the constraint type shown in FIG. 8 is used. The current limiting circuit 5 operates by detecting a current with a current detection resistor _R1 , and when the current exceeds a certain level, the voltage drop across the resistor _R1 becomes large, turning on the transistor _Tr2 , and pulling the base of the transistor _Tr1 . It also turns off transistor _Tr1 . On the other hand, in order to superimpose the DC voltage, which is the signal from the signal voltage generation circuit 4, on the dedicated line 6, a diode _D1, which is a switch element, is connected.
It is inserted and connected between the resistor _R1 and the connection point between the relay Ry and the operation switch _SW1 . Therefore, the signal generating circuit 4 and the current limiting circuit 5 are coupled to the control circuit 3 through this diode _D1 .

The connection point between operation switch SW ₁ and relay Ry,
Dedicated lines 6, 6 are led out from the ground, and slave device B is connected to these dedicated lines 6, 6. Slave unit B determines the level of the DC voltage from operation switch SW ₂ , diode bridge DB ₂ for making the wiring between parent unit A and slave unit B non-polarized, and signal voltage generation circuit 4, and outputs the load. The display circuit 7 includes a display circuit 7 for displaying the operating state of the device 2, and the like. Operation switch SW ₂ is dedicated line 6,
6, it is connected in parallel with the operation switch _SW1 of the parent unit A. The display circuit 7 includes two Zener diodes ZD ₄ and ZD ₅ and a light emitting diode for determining signal levels.
Transistors Tr ₄ and Tr ₅ that drive LED ₃ and LED ₄
It is composed of etc. By the way, the magnitude relationship of the Zener voltages Vz ₁ , Vz ₂ , Vz ₃ , Vz ₄ and Vz ₅ of the Zener diodes ZD ₁ , ZD ₂ , ZD ₃ , ZD ₄ and ZD ₅ is set as follows.

Vz ₃ > Vz ₄ > Vz ₂ > Vz ₅ Vz ₁ < Vz ₂ The reason why Vz ₁ < Vz ₂ is set is as follows. In other words, if the Zener voltage Vz ₁ of the Zener diode ZD ₁ is not set lower than the Zener voltage Vz ₂ of the Zener diode ZD ₂ but is set higher, the voltage will drop when the load 2 is turned on. Therefore, the Zener diode ZD ₁ cannot be turned on, and power cannot be supplied to the control circuit 3.

Now, when operating switch SW ₁ is not operated on master device A, contact r ₁ is open and contact r ₂ is connected to a○ terminal, no voltage is applied to the gate of triac TR, so triac TR is turned off. , and load 2 is also in the off state.
Furthermore, since the contact _r2 is on the a○ terminal side, the light emitting diode _LED1 lights up, indicating that the load 2 is in the off state. On the other hand, a voltage is applied to the dedicated line 6 when the load 2 is in an off state without operating the operation switch _SW1 . In other words, the Zener voltage of the Zener diode ZD ₃ of the signal voltage generation circuit 4
Vz ₃ is connected to dedicated line 6 via signal superimposing diode D ₁
is applied to. When a voltage of Vz ₃ is applied to the dedicated line 6, there is a Zener voltage relationship of Vz ₃ > Vz ₄ , so the Zener diode ZD ₄ turns on, the light emitting diode LED ₃ lights up, and the load 2 turns off. .

When operation switch SW ₁ is operated, the reset coil RC of the latching relay Ry is energized and reversed since no voltage is applied to the reset coil RC since the contact r ₂ is on the a○ terminal side. to close contact _r1 and turn on triac TR, turning load 2 on. Note that the latching relay Ry maintains this state until the reset coil RC is excited. Also, contact _r2 will be connected to b○ terminal, so the light emitting diode
LED ₂ lights up to indicate that load 2 is on. At this time, since the Zener voltages of the Zener diodes ZD ₂ and ZD ₃ in the dedicated line 6 have a relationship of Vz ₃ > Vz ₂ , the Zener diode ZD ₃ is turned off and the Zener diode ZD ₂ is turned on, and approximately
A voltage of Vz ₂ will be applied through the diode D ₁ . On the other hand, on the slave B side, Vz ₄ > Vz ₂ >
Since there is a relationship between the zener voltage of Vz ₅ , the zener diode ZD ₅ turns on and the light emitting diode
LED ₄ lights up to indicate that load 2 is on on the slave B side. Now, when operation switch SW ₁ is operated again, no voltage is applied to the set coil SC of the latching relay Ry since the contact r ₂ is on the b○ terminal side, and the reset coil RC of the latching relay Ry is energized. and flip the contact R ₁
Open the AC power source 1 and turn it off near zero V, and connect the contact _r2 to the a○ terminal side to return to the initial state. In addition, the operation switch on the slave unit B side
Since SW ₁ is in a parallel relationship with operation switch SW ₁ on the parent unit A side, operating operation switch SW ₂ is the same as operating operation switch SW ₁ .
The latching relay Ry repeats the reversal operation in the same manner as above. By configuring parent device A and child device B as described above, the wiring between parent device A and child device B is 2
Bidirectional transmission is possible with a simple configuration using the dedicated line 6. In other words, the display signals of the light emitting diodes LED ₃ and LED ₄ indicating the operating status of the load 2 are sent from the master unit A to the slave unit B, and the operation signal of the operation switch SW ₂ is sent from the slave unit B to the master unit A. become. Furthermore, the number of channels for the transmission signal from the parent unit A to the slave unit B can be increased by increasing the number of Zener diodes in the signal voltage generation circuit 4. Since the signal sent from the master unit A to slave unit B is used as the power source for the indicator lights (light emitting diodes LED ₃ and LED ₄ ) of slave unit B, there is no need to separately supply power to slave unit B. It is.

As described above, the present invention forms a parent device that controls on/off of a load connected to a power source using an operating switch, and is connected in parallel to the parent device via a dedicated line and connected to the parent device by an attached operating switch. Forms a child device that controls on/off the load that is connected to the device, and connects multiple parent devices to which the child device is connected via a dedicated line, or connects a parent device and a child device to which the child device is connected via a dedicated line. Forming a pattern switch main body in order to input signals from a plurality of parent devices including parent devices that are not connected to each other, and to control on/off of loads connected to each parent device individually or preset loads all at once; An all-on switch that turns on all the loads connected to each parent unit, an all-off switch that turns off all loads all at once, an individual operation switch that turns on and off each load individually, and a display that displays the operating status of each load. is arranged on the front of the pattern switch main body, and there is a setting switch that allows you to set in advance to turn on or off the loads all at once by operating the all-on/off switch corresponding to each load, and Since the terminals for connecting signal lines are placed on the back of the pattern switch, all-on switches, all-off switches, and individual operation switches for controlling the load are placed on the front of the pattern switch. This makes it very easy to operate, and since the status of the controlled load is displayed on the display, the operating status of the load can be determined at a glance. It has the effect of disappearing. In addition, since the setting switch and terminal section are located on the back of the pattern switch body,
Wiring can be done all at once at the time of wiring, making installation quicker.Also, since the setting switch is not something you need to operate frequently, having it on the back makes it easier to install.
This has the effect that there is no risk of changing the pattern due to careless operation.

[Brief explanation of drawings]

FIG. 1 is an overall block diagram of an embodiment of the present invention;
Fig. 2 is a circuit diagram of the slave device side of the above, Fig. 3 is a circuit diagram of the main part of the pattern switch main body side of the above, Fig. 4 a and b are perspective views of the pattern switch main body as seen from the front and back of the above, Figure 5 is a schematic wiring diagram of the same as above, Figure 6 is a specific circuit diagram of the parent unit and slave unit of the same as above,
Figure 7 is a characteristic diagram of the reduced type of the current limiting circuit same as above.
FIG. 8 is a characteristic diagram of the same constraint type. 2 is a load, 6 is a dedicated line, 21 is a pattern switch body, 22 is a traffic light, 24 is an individual operation switch, 25 is a display section, 26 is a terminal section, A is a master device, B
SW ₁ is an operation switch, PSWon is an all-on switch, PSWoff is an all-off switch,
S indicates a setting switch.

Claims (1)

[Claims] 1 Forms a master unit that controls on/off the load connected to the power supply with an operation switch, and controls the load connected to the master unit in parallel via a dedicated line and connected to the master unit with an attached operation switch. Multiple master units that form a slave unit and slave units are connected via a dedicated line, or a master unit to which slave units are connected via a dedicated line and a parent unit to which no slave unit is connected. A pattern switch main body is formed in order to input signals from a plurality of parent devices, and control on/off of the loads connected to each parent device individually or all at once. An all-on switch that turns all loads on all at once, an all-off switch that turns all loads off all at once, an individual operation switch that turns on and off each load individually, and a display that displays the operating status of each load are located on the front of the pattern switch. A terminal section for connecting the signal line from each parent unit or slave unit to a setting switch which is arranged and configured in advance to turn on or off the loads all at once by operating the all-on/off switch corresponding to each load. The structure of the pattern switch consists of the following: placed on the back of the pattern switch body.