JP3121402B2 - Dimming terminal for remote monitoring and control - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates, is connected to the central control device via a signal line of the two-wire receive a transmission signal from the central control unit, regulating the illumination load based on control data of the transmission signal The present invention relates to a dimming terminal for remote monitoring and control that performs optical control.

[0002]

2. Description of the Related Art Conventionally, a remote monitoring control system having a configuration as shown in FIG. 4 has been known. That is, the central control unit 51 is connected to the central control unit 51 via a two-wire signal line Ls.
A plurality of monitoring terminals 52 for monitoring the switches S _{1 to} S ₄ , a control terminal 53 for controlling the loads L _{1 to} L ₄ ,
Terminal 54 for wireless relay to which the wireless signal line Lw is connected, terminal 55 for an external interface to which an external controller 57 is connected, terminal 56 for pattern setting
And so on. Each of the terminals 52 to 56 is set with an individual address, and the central controller 51 uses the address to identify each of the terminals 52 to 56.

[0005] The central control unit 51 sends out a transmission signal Vs having a format as shown in FIG. 5A to a signal line Ls. That is, the start pulse S indicating the start of signal transmission
T, mode data signal MD indicating signal mode, terminal 5
Address data signal AD for transmitting address data for calling the 2-56 to each other, the load L ₁ ~L ₄ control data signal CD for transmitting the control data for controlling the checksum data signal CS for detecting a transmission error , A multi-pole (± 24 V) time-division multiplexed signal composed of a return standby signal WT for setting a period for receiving a return signal from the terminals 52 to 56, wherein data is transmitted by pulse width modulation. I have.

[0004] When the address data of the transmission signal Vs received via the signal line Ls matches the set address data, each of the terminals 52 to 56 takes in the control data of the transmission signal Vs and simultaneously receives the control data of the transmission signal Vs. The monitoring data signal is returned in a current mode (a signal transmitted by short-circuiting the signal line Ls via an appropriate low impedance) in synchronization with the return waiting signal WT.

The central control unit 51 has a dummy signal transmitting means for transmitting a dummy transmission signal having the mode data signal MD as a dummy mode and an empty address not set in each of the terminals 52 to 56 as address data. Is provided. The central controller 1 outputs an interrupt signal when receiving an interrupt signal Vi as shown in FIG. 5B generated from any of the other terminals 52, 54, 55 and 56 except the control terminal 53. The generated terminals 52, 54, 5
5, 56, and then the terminals 52, 54, 55,
An interrupt processing means for accessing the 56 and returning the monitoring data is also provided in the central controller 51. That is, the dummy signal is always transmitted to the signal line L by the dummy signal transmitting means.
s, and when the interrupt signal Vi generated from the terminals 52, 54, 55, 56 is detected in synchronization with the start pulse signal ST of the dummy transmission signal, the central processing unit 51 sends the mode data signal MD from the central control unit 51 by the interrupt processing means. The transmission signal Vs in the address confirmation mode is transmitted. Terminals 52, 54, 5 that have generated interrupt signal Vi
5 and 56, upon receiving the transmission signal Vs in the address confirmation mode, return the address data set in the terminals 52, 54, 55 and 56 in synchronization with the return standby signal WT of the transmission signal Vs. Thus, the central controller 5
1, the terminals 52, 54,
The monitoring data from the terminals 52, 54, 55, 56 is received by acquiring the addresses 55, 56 and accessing the terminals 52, 54, 55, 56 using the obtained addresses.

In the central control unit 51, the terminals 52, 5
Thereby creating a control data transmitting load L ₁ ~L ₄ corresponding on the basis of the returned monitoring data to the terminal device 53 for controlling a connection is made from the 4,55,56, a transmission signal Vs containing the control data The control data is transmitted to the signal line Ls, and the control data is transmitted to the corresponding control terminal device 53 so that the loads L ₁ to L ₁ are transmitted.
To control the L _4.

Here, a wireless relay terminal 54 is provided.
Is connected to a wireless signal line Lw to which a receiver Y for receiving a wireless signal such as infrared light transmitted from the transmitter X is connected, and relays the wireless signal received by the receiver Y. Do. That is, the wireless signal from the transmitter X received by the receiver Y is received via the wireless system signal line Lw, and the data is transferred to the central controller 51. The terminal device 55 for the external interface is a terminal device that transmits data to and from the external control device 57. Terminal 56 for pattern setting
Is a terminal that transfers the pattern control data input from the data input unit 58 to the central controller 51. Further, a control terminal 53 is provided in the distribution board 60 and the relay control panel 61, and the terminal 53 is provided in a body having a size according to the common size of the distribution board for load control. (A latching relay that can be turned on and off by a hand switch) 62 of the remote controller.

[0008]

[SUMMARY OF THE INVENTION Incidentally, in the above-described remote monitoring control system, the load L ₁ ~L ₄ and the lighting load, the transmission signal Vs transmitted from the central controller 51
You may wish to control dimming lighting load L ₁ ~L ₄ by. In order to satisfy such requirements, the control terminal 5
As 3, a dimming terminal 53 a capable of dimming control of the lighting loads L _{1 to} L ₄ is considered. In the dimming terminal 53a,
Based on the control data of the transmission signal Vs, the lighting loads L _{1 to} L
The dimming state of ₄ is controlled. Such dimming terminal unit 53a is being built into the instrument body of the lighting load L ₁ ~L ₄ is generally, may want to place in the distribution board, located within the panelboard It is required to be able to do so.

Further, in order to control the dimming of the lighting load, it is general to control the power supplied to the lighting load by a power control element, and it is required to efficiently radiate the heat generated from the power control element. Have been. SUMMARY OF THE INVENTION An object of the present invention is to provide a dimming terminal for remote monitoring and control which can be arranged in a distribution board and can efficiently radiate heat generated from a power control element. What you want to do.

[0010]

According to the invention of claim 1, 2
A transmission processing circuit for receiving a transmission signal including the address data and control data sent from the connected to the central control device to the central control device via a signal line of the line type, an address setting unit which address data has been set, A power control element for controlling the power supplied to the lighting load is housed in the case, and when the address data received by the transmission processing circuit matches the address data set in the address setting unit, the power control element is used based on the control data. so as to determine the power supplied to the lighting load, to case is a dimension that has been standardized as panelboard agreements dimensions, a body formed by good thermal conductor is fixed to the electric facility plate, an insulating material A power control element is thermally coupled to the inner surface of the body , comprising a cover formed and coupled to the body.

According to the second aspect of the present invention, the body is provided with a coupling hole that can be coupled to a fixture for fixing the case to the electrical board.

[0012]

According to the first aspect of the present invention, since the case is formed to have a standardized size as the common size of the distribution board, the case can be disposed in the electrical board. The power control element is thermally coupled to the inner surface of the body, which is formed by a body formed by a good thermal conductor fixed to the body and a cover formed by an insulating material and coupled to the body. The heat generated from the element is transmitted to the body, which is a good heat conductor, so that a large heat dissipation area can be obtained, so that efficient heat dissipation can be performed.

According to the second aspect of the present invention, since the body is connected to the fixing bracket provided on the electrical board, the heat of the body is transmitted to the electrical board, and the radiation efficiency is further improved.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A dimming terminal for dimming control of a lighting load is shown in FIG.
It has the following circuit configuration. That is, a transmission processing circuit 10 comprising a microcomputer is provided, and the transmission processing circuit 10 is connected to a signal line by a terminal t ₁ via a transmission / reception circuit 11. The transmitting / receiving circuit 11 includes a transistor Q ₁
, A transistor Q ₂ and a resistor R ₁
And a transmission unit 11b having the following. Therefore, the transmission signal transmitted through the signal line from the central control unit is transmitted to the receiving unit 1
Is input to the transmission processing circuit 10 through 1a, by turning on the transistor Q ₂ is from the transmission processing circuit 10, to the central controller a current mode signal by short-circuiting between the lines of the signal line via a resistor R ₁ It can be returned. The power is supplied to the transmission processing circuit 10 by full-wave rectification of the signal transmitted through the signal line by the diode bridge DB, the transistor Q ₃ , the Zener diode ZD, and the capacitor C
_This is performed by the power supply circuit 12 which is stabilized by ₁ or the like.
Here, the diode bridge DB is shared with the transmission unit 11b. The reception state of the transmission signal depends on the transmission processing circuit 1
0 indicated by flashing of the connected light-emitting element LD ₂ in.

The address data of the dimming terminal and the function data for setting the function of the transmission processing circuit 10 are stored in a data storage unit 13 composed of an EEPROM. The data stored in the data storage unit 13 is created by processing the signal received by the optical signal receiving circuit 14 including the light receiving element PD ₁ and the transistors Q ₄ and Q ₅ by the transmission processing circuit 10. Here, the signal received by the optical signal receiving circuit 14 is a wireless signal such as infrared light transmitted from a setting device (not shown) provided outside. For dimming terminals,
An optical signal transmission circuit 15 including a light emitting element LD ₁ , a transistor Q _{6 and the} like is provided. When a wireless signal is received, a response signal such as reception confirmation or setting confirmation is set as a wireless signal according to the content of the signal. Will be sent back to you.

The transmission processing circuit 10 is connected to a dimming control circuit 16 composed of a microcomputer, and controls the dimming control circuit 1 based on data transmitted from the central control unit.
In No. 6, the phase of the power control element T composed of a triac is controlled. That is, the commercial power source AC is connected to the terminal t _2, there is the lighting load is connected to the terminal t _3, between the two terminals t _2, t _3, and the contact r ₁ of the latching relay Ry _1, power Control element T or photocoupler P
A phase control circuit 17 consisting of a C ₁ is inserted. Latching relay Ry _1, the transistor Q ₇ and the like to Q ₁₀ relay drive circuit 18 via a dimming control circuit 16
And the two contacts r ₁ ,
r ₂ , and one contact r ₂ is connected to return the on / off state to the dimming control circuit 16. Emitting element of the photocoupler PC ₁ of the phase control circuit 17 is being blink at the output of the light control circuit 16 via the drive circuit 19, the light receiving element of the photocoupler PC ₁ is set in the dimming control circuit 16 The power control element T is controlled in phase so that the lighting load is turned on at the adjusted dimming level. As described above, in the dimming control circuit 16, the latching relay R
The light output of the lighting load is controlled by the dimming control circuit 16 in a state where the contact r _{1 of} y ₁ is turned on and the lighting load is energized. The dimming control circuit 16 includes a photocoupler PC
₂ through a power supply monitoring circuit 20 composed of
Is supplied. Reset circuits 21 and 22 are connected to the transmission processing circuit 10 and the dimming control circuit 16, respectively. When the dimming terminal is connected to a signal line and supplied with power, the transmission processing circuit 10 and the dimming control circuit 16 are connected. Is reset.

With the above configuration, when the dimming terminal receives the transmission signal from the central control unit, the dimming terminal compares the address data included in the transmission signal with the address data stored in the data storage unit 13 to match. Is determined, and when the address data matches, the dimming control circuit 16 sets the dimming level according to the control data included in the transmission signal, and controls the light output of the lighting load.

By the way, the light output of the lighting load L ₁ connected to such a dimming terminal unit is regulated by operating the switch S ₁ to S ₄ which is input to the terminal device for monitoring. That is, the switches S _{1 to} S ₄ of the monitoring terminal corresponding to the dimming terminal are push-button switches, and when control data generated when the switch is pressed for the first time is input to the dimming terminal. increases the light output of the lighting load L ₁ over time in the dimming terminal unit, the desired light output is its state of illumination load L ₁ and when the optical output is obtained pressing the switch S ₁ to S ₄ Stop at When the switch S ₁ to S ₄ is pressed again, this time to reduce the light output of the lighting load L ₁ with time, press the switch S ₁ to S ₄ when the desired light output is obtained The light output stops at that state.
Thus, each time you press the switch S ₁ to S _4, the light output increases, stop, reduce, and of repeating cyclically stopped, it become possible to control the light output in one switch. The dimming level is controlled by the central control unit 5 from each dimming terminal.
1 and can be returned to the previous dimming level when it recovers from a power failure or the like.

The structure of the dimming terminal is as shown in FIGS. 1 and 2, and the above-mentioned circuit is mounted in a case 30 standardized as a common size of a distribution board. The case 30 is a box-shaped body 30 formed of a good thermal conductor such as aluminum die-casting which is open at the top in FIG.
a and a cover 30b formed of an insulating material such as a synthetic resin fitted to the body 30a.
Are formed by bonding. On both sides of the cover 30b, terminal recesses 3 constituting the respective terminals t ₁ ~t ₃
2a is formed corresponding to the terminals t ₁ ~t _3, terminal plate 3 in each terminal recess 32a which is screwed a terminal screw 32b
2c are respectively provided. Terminal recess 3 corresponding to terminals t ₂ and t ₃ connected to commercial power supply AC and lighting load
2a is covered by a terminal cover 32e fixed to the upper surface of the cover 30b by a fixing screw 32d. Cover 3
The light emitting element LD ₁ and the light receiving element PD ₁
A transparent window 33b that filter 33a is mounted to allow the light projecting and receiving of the transparent window 33c for transmitting light from the light-emitting element LD ₂ is formed.

In the case 30, the printed wiring board 35a of FIG. 1 on which the phase control circuit 17 is mounted and the printed wiring board 35b of FIG. I have. Further, the power control element T is connected to the body 30a.
Screw 37 screwed into a mounting table 37a provided on the inner peripheral surface of
It is fixed in close contact with the body 30a using b. The power control element T and the body 30a are appropriately insulated by a mica plate or the like. The printed wiring board 35b is fixed to the body 30a by a fixing screw 38b screwed into a boss 38a provided on the inner peripheral portion of the body 30a. The printed wiring board 35a is fixed to the lower surface of the cover 30b by fixing screws 39 screwed to the lower surface of the cover 30b. Coupling holes 40 for coupling fixing members for fixing the case 30 to the distribution board are formed on both side surfaces at the lower portion of the body 30a. That is, a fitting for attaching to the DIN standard rail provided on the electrical installation board, a connecting plate for connecting the cases 30 to each other, and the like are inserted into the coupling holes 40.

According to the above configuration, since the body 30a is a good heat conductor, and the power control element T, which is a heat generating member, is attached to the body 30a in a thermally coupled state, heat is efficiently radiated through the body 30a. It is done. Further, since heat is radiated using the body 30a exposed to the outside, the thermal effect on the internal circuit of the case 30 can be reduced. In addition, since the body 30a having a function as a heat radiating plate is provided with a function of fixing to the electrical board, the heat conduction from the body 30a to the electrical board can further improve the heat radiation efficiency. .

At the time of assembling, after the terminal plate 32c is attached to the cover 30b, the terminal screws 32b are screwed to the terminal plate 32c. The printed wiring board 35
After connecting a and 35b via the lead wires, the printed wiring board 35a is fixed to the cover 30b with fixing screws 39, and the connection to the terminal plate 32c attached to the cover 30b is performed. On the other hand, the power control element T is fixed to the body 30a with mounting screws 37a.
5b is fixed with a fixing screw 38b. After that, the body 30a and the cover 30b are connected by the assembly screw 31. Also, a filter 33a is inserted into the cover 30b,
The terminal cover 32e is attached.

[0023]

According to the first aspect of the present invention, since the case is formed to have a standardized size as the common size of the distribution board, the case can be disposed in the electrical board. The power control element is thermally coupled to the inner surface of the body, which is formed by a body formed by a good thermal conductor fixed to the body and a cover formed by an insulating material and coupled to the body. The heat generated from the elements is transmitted to the body, which is a good heat conductor, so that a large heat dissipation area can be obtained. This has an effect that efficient heat dissipation can be performed.

According to the second aspect of the present invention, since the body is connected to the fixing bracket provided on the electrical board, the heat of the body is transmitted to the electrical board, and the heat radiation efficiency is further improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment.

FIG. 2 is an external perspective view of the embodiment.

FIG. 3 is a circuit diagram of the embodiment.

FIG. 4 is a configuration diagram of a remote monitoring control system according to the present invention.

FIG. 5 is an explanatory diagram of the operation of the remote monitoring control system according to the present invention.

[Explanation of symbols]

10 transmission processing circuit 13 data storage unit 14 the optical signal receiving circuit 15 optical signal transmission circuit 30 case 30a body 30b cover 40 coupling holes L ₁ ~L ₄ load LD _1-emitting element PD ₁ light receiving element T power control element

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04Q 9/00-9/16 H05B 37/02 H01L 23/34-23/46 H05K 5/00-5/06

Claims (2)

(57) [Claims] 1. A through 2-wire signal line to a central control unit
A transmission processing circuit for receiving a transmission signal including the address data and control data sent from the connected to the central control unit, and an address setting unit which address data has been set, the power control device for controlling the power supplied to the lighting load : it is housed in a case, so as to determine the power supplied to the lighting load by the power control element on the basis of the control data and the address data set in the address data and the address setting unit which matches the received the transmission processing circuit , to case is a dimension that has been standardized as panelboard agreements dimensions, a body formed by good thermal conductor is fixed to the electric facility plate, and a cover coupled to the body made of an insulating material Tona
And a power control element thermally coupled to an inner surface of the body. 2. The remote control dimming terminal according to claim 1, wherein a coupling hole is formed in the body so as to be connectable to a fixture for fixing the case to the electrical board.