JP2761038B2 - Switch equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device such as a remote monitoring and control terminal having a plurality of operation switches.

[Conventional technology]

Conventionally, a remote monitoring and control terminal 2 having a plurality of operation switches is provided with a plurality of switches S _{1 to} S _{4 as} shown in FIG.
There is a switch device provided on the front surface of the device case 20, S the switches provided on the front surface of the device case 20 ₁ to S ₄
The operation handles 23 ′ are formed as individual components, respectively, and the operation handles 23 ′ are integrated into the device case 20.

[Problems to be solved by the invention]

However, in the above conventional example, the device case
20 is composed of a case body that opens forward and a cover that covers the opening of the case body, and since the case body and the cover are connected with screws or the like, there is a problem that assembly takes time. Was.

The present invention has been made in view of the above points, and an object of the present invention is to provide a switch device that can be easily assembled.

[Means for solving the problem]

The switch device of the present invention is connected to a central control device by a pair of signal lines together with a plurality of load control switches, a load control terminal, and a plurality of load control terminals each having a unique address. A printed circuit board provided with a signal processing circuit for controlling a load corresponding to each switch via the central control device and the control terminal device by a signal, a box-shaped case body opened forward, and a front opening of the case body A cover to be covered is connected to the engagement part and the engaged part by the concave and convex engagement of the engaged part, and the device case in which the printed circuit board is housed, and each switch integrated on the front side of the cover. A plurality of operating handles to be operated, and are provided on the printed circuit board corresponding to the respective operating handles and are turned on / off by the signal processing circuit in accordance with a transmission signal from a central control device. A light-emitting diode for displaying a load operation, an opening for the light-emitting diode provided on the front surface of the cover, an elastic piece for movably supporting each operation handle, a mounting piece for attaching the device case to a wall surface, and a screw. And a mounting hole provided on a mounting piece for mounting a decorative cover on the front side of the device case.

(Operation)

The present invention is configured as described above, and a box-shaped case main body opened to the front and a cover covered by a front opening of the case main body are connected by the concave and convex engagement of the engaging portion and the engaged portion. There is provided a device case in which the printed circuit board is housed inside, and the cover can be easily connected to the case body by asperity engagement between the engaging portion and the engaged portion, and can be assembled.

According to a second aspect of the present invention, the engaging portion and the engaged portion are provided on one of the case body and the cover, respectively, or as in the third aspect, the case body has an engaging hole. A mating piece is provided, and an engaging projection for engaging with the engaging hole is provided on a side surface of the cover. Alternatively, as in claim 4, the engaging piece is provided on the cover, and The engaged portion to be engaged may be provided on the case body.

Further, as in claim 5, mounting pieces are formed above and below the cover, and one end of each operating handle is connected to a connecting piece via a thin elastic piece to form an operating block. By engaging and attaching to the front of the device case, and pressing the push button of the switch protruded from the device case at the other end of each operation handle,
The gap between the operation handles is constant, so that the operation handle does not get caught when operated, and the operation handle can be made as large as possible.

〔Example〕

Figure 1 through Figure 6 is shows one embodiment the present invention, showing the structure and disposed state of the switch S ₁ to S ₄ of the switch terminal unit integrated with the monitoring terminal device 2 2 ' . That is, the four load control switches S _{1 to} S ₄ and the corresponding load operation display light emitting diodes LDa and LDb are arranged on the front surface of the terminal case 20. Here, the terminal device case 20 has a box-shaped case main body 20a opened forward and a cover 20b in which the mounting piece 21 is integrally formed.
By engaging the engaging projection 27b provided on the side surface of the cover 20b with the engaging hole 27a of the engaging piece of the case main body 20a, it can be easily connected and assembled with one touch. The mounting piece 21 is provided with a decorative cover mounting screw hole 21d and a wall mounting hole 21b, and the mounting hole 21b, a wiring box mounting hole 21a provided in the cover 20b, and an L-shaped mounting hole. And the mounting hole 21c for the scissor fitting form a mounting portion.

On the front surface of the cover 20b, are adapted to the operation block 22 of the switch S ₁ to S ₄ are integrated is Kutsugaechaku engages the engaging pawl 28 in the engaging hole 28a of the cover 20b The operation block 22 is formed by connecting one end of four operation handles 23 to a connecting piece 25 via a thin elastic piece 24 and integrating them. Are attached by press fitting. A switch pressing rib 23b protrudes from the rear surface of the operation handle 23, and a return spring piece 23a is integrally protruded from the operation handle 23. The return spring piece 23a elastically contacts the front surface of the cover 20b for operation. An elastic force for returning the handle 23 is obtained. Further, on the back surface of the other end of the operation handle 23, an engagement protrusion 29 for preventing lifting is integrally provided so as to protrude, and the operation is performed by engaging an engagement hole 29a formed in the cover 20b. The handle 23 can be prevented from rising.

On the front surface of the cover 20b, a protection rib 24a having a triangular cross section for protecting a hinge portion made of the elastic piece 24 is provided.
When the operating handle 23 is pressed by a large force, the elastic piece 24 is excessively deformed and broken by supporting the hinge at the apex of the protective rib 24a when the operating handle 23 is pressed with a large force. And reliability can be improved. Since the protection rib 24a is formed in a triangular cross section, the operation handle 23 does not contact the protection rib 24a in a normal operation range.

The light-emitting diodes LDa and LDb for displaying the load operation, the photodiode PD for transmitting and receiving the optical wireless signal, and the light-emitting diode LD are mounted in a line on the printed base 30. The printed circuit board 30 is housed in the terminal case 20. And
On the front surface of the terminal device case 20, that is, on the cover 20b, the light emitting diodes LDa and LDb are formed corresponding to the light emitting diodes LDa and LDb.
a, an opening 31 for projecting LDb, and a photodiode P
An optical signal transmitting and receiving openings 32 corresponding to the D and the light emitting diode LD, the projection hole for protruding the operating portion 33 of the switch S ₁ to S ₄
34 are provided. Also, the connecting piece 25 of the operation block 22
The opening 32a corresponding to the operation display opening 31a and the opening 32
A light guide 35 made of a translucent resin is covered by both openings 31a and 32a (fitted into a groove 36 formed in the connecting piece 25). Further, a filter 37 such as an infrared transmission filter that selectively transmits and receives only an optical signal is fitted into the opening 32a.

By the way, when the switch terminal 2 'is disposed in the embedded wiring box 40, as shown in FIG. 2, the mounting screws inserted into the wiring box mounting holes 21a of the cover 20b are used.
After attaching the terminal case 20 to the wiring box 40 at 41,
The operation block 22 is fitted to the front surface of the terminal device case 20, the decorative cover frame 42 is attached to the decorative cover mounting screw hole 21d of the mounting piece 21 with the mounting screw 43, and the decorative cover 4 is attached to the decorative cover frame 42.
4 should just be fitted. In this case, since the operation block 22 is attached after the terminal device case 20 is attached, the operation block 22 can be formed in a size that covers the attachment portion (that is, covers the entire front surface of the terminal device case 20). Thus, the operation handle 23 can be made as large as possible.

Figure 7 is monitoring terminal device 2 for monitoring the switches S ₁ to S ₄
(As mentioned at the beginning this switch S ₁ to S ₄ of the monitoring terminal device 2 that is formed integrally with the aforementioned switch terminal unit 2 '
It is. 3) shows a signal processing circuit 10 composed of a microcomputer, an address setting unit 11 formed of an EEPROM, and an optical signal receiving unit 12 composed of a photodiode PD and transistors Q ₅ and Q _6. , light emitting diode LD and the optical signal transmission unit 13 composed of transistors Q ₄
When a power supply circuit 14 of the Zener diode ZD and the transistor Q _2, the return circuit 15 consisting of resistors R and the transistor Q _3, and is formed by a reset circuit 16. Here, the transmission signal Vs transmitted via the signal line 4 is rectified by the diode bridge DB, which is input to the signal input terminal of the signal processing circuit 10 via the transistor Q _1, comprises a signal processing circuit 10 The circuit power of each terminal circuit is the transmission signal
The power is supplied via a power supply circuit 14 for converting the rectified voltage of Vs to a constant voltage. In the signal processing circuit 10, the address setting unit
Judges whether the unique address data set in 11 matches the address data of the received transmission signal Vs, takes in the control data transmitted subsequently when the address matches, and displays the load operation (ON → red, OFF → green) light emitting diode
LDa, inserted to control the LDb, the resistance R of the resistance value between the switch S ₁ checks the state of the to S ₄ to form the monitoring data, the monitoring data current mode signal from the return circuit 15 (signal line 4 return signal V _B to be returned to the central control unit 1 as)
To the signal line 4.

On the other hand, writing of data to the EEPROM constituting the address setting unit 11 is performed by the signal processing circuit 10, and the data to be written is obtained by performing signal processing on a signal received by the optical signal receiving unit 12. Then, predetermined data of 32 bits are written. Here, the signal received by the optical signal receiving unit 12 is an optical wireless signal transmitted from a data setting unit (not shown), and a response signal such as a reception confirmation signal is transmitted from the optical signal transmitting unit 13 to the optical wireless signal. It is transmitted as a signal, and data can be reliably transmitted wirelessly between the monitoring terminal 2 and the data setting device.

FIG. 8 shows another embodiment, in which three switches are used.
Is indicative of S _1, S _2, switch terminal unit 2 having a S ₃ ', each part of the configuration and operation are the same as the previous examples.

FIG. 9 shows a switch terminal according to the present invention for monitoring terminal 2.
Schematically shows the configuration of a remote supervisory control system using as, a central control unit 1, a plurality of monitoring terminal device 2 for monitoring the switches S ₁ to S ₄ unique address is set, the load L ₁ ~
The control terminal 3 for controlling L ₄ , the wireless relay terminal 7, the external interface terminal 8, and the pattern setting terminal 9 are connected by a pair of signal lines 4. The transmission signal V _S sent out on line 4 is
As shown in FIG. 10 (a), a start pulse signal ST indicating the start of signal transmission, and a mode data signal M indicating a signal mode.
D, address data signal AD for transmitting 8-bit address data for calling a terminal unit 2,3,7～9, control data signal CD for transmitting the control data for controlling the load L ₁ ~L _4, check sum data signal CS And a multi-pole (± 24V) time-division multiplexed signal composed of a return waiting signal WT for setting a return period from the terminals 2, 3, 7 to 9, and data is transmitted by pulse width modulation. I have. Each of the terminals 2, 3, 7 to 9 takes in control data of the transmission signal Vs when the address data of the transmission signal Vs received via the signal line 4 and the own unique address data match, and transmits the data. The monitor data signal is returned as a current mode signal (a signal transmitted by short-circuiting between the signal lines 4 via a suitable low impedance) in synchronization with the return standby signal WT of the signal Vs. The central control unit 1 also includes a dummy signal transmitting means for constantly transmitting a dummy transmission signal in which the mode data signal MD is set to the dummy mode, and any one of the monitoring terminal 2 or the wireless relay terminal 7 and the external interface terminal. 8, the tenth returned from the pattern setting terminal 9
When an interrupt signal Vi as shown in FIG. 7B is received, the interrupt generation terminals 2, 7 to 9 are detected and the terminals 2, 7 to 9 are detected.
And an interrupt processing means for accessing the 9 to return the monitoring data. The central control unit 1 also uses the monitoring data returned from the monitoring terminal 2 or the wireless relay terminal 7, the external interface terminal 8, and the pattern setting terminal 9 to the central control unit 1 as described above. And creates control data to be transmitted to the control terminal 3 that controls the corresponding loads L _{1 to} L ₄ , and transmits the control data to the control terminal 3 via the signal line 4 in a time-division multiplex manner. and controls the load L ₁ ~L _4.

The wireless relay terminal 7 includes an optical wireless transmitter Y,
A terminal for relaying data of an optical wireless system composed of an optical wireless receiver X and a wireless signal line 4a. The optical signal transmitted from the optical wireless transmitter Y is received by the optical wireless receiver X and received. The received data is received via the wireless signal line 4a, and the data is transferred to the central controller 1. The external interface terminal 8 is connected to an external control device 8a.
The pattern setting terminal 9 is a terminal that transfers pattern control data input from the data input unit 9a to the central control device 1. The monitoring terminal 2 and the control terminal 3 disposed in the distribution panel 6 or the relay control panel 6a have a distribution panel agreement size, and the control output thereof controls the remote control relay for load control. (Latching relay that can be turned on and off also by a hand switch) 5 is controlled.

〔The invention's effect〕

The present invention is configured as described above, and a box-shaped case main body opened to the front and a cover covered by a front opening of the case main body are connected by the concave and convex engagement of the engaging portion and the engaged portion. There is provided a device case in which the printed circuit board is accommodated, and the cover can be easily connected to the case main body by asperity engagement between the engaging portion and the engaged portion, so that the cover can be assembled.

In claim 5, mounting pieces are formed above and below the cover, and one end of each operation handle is connected to the connecting piece via a thin elastic piece to form an operation block.
The operation block is engaged and attached to the front of the device case,
At the other end of each operation handle, the push button of the switch protruded from the device case is pressed, so that the gap between the operation handles is constant and the operation handle is not caught when operating, Moreover, there is an effect that the operation handle can be made as large as possible.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is an exploded perspective view showing an example of disposition in an embedded wiring box of the above, FIG. 3 is a perspective view of a main part of the same, and FIG. Sectional view of the main part,
5 is a front view of the main part of the above, FIG. 6 is a sectional view of the main part of the same, FIG. 7 is a circuit diagram of the same, FIG. 8 is an exploded perspective view of another embodiment, and FIG. Schematic diagram of the control system,
FIG. 10 is a view for explaining the operation of the above, and FIG. 11 is a front view of a conventional example. 20 the terminal unit case, 22 the operation block, 23 operating handle, 23a is a return spring pieces 24 are elastic pieces 25 coupling piece 28 is engaging claws, 28a are engaging hole, S ₁ to S ₄ is This is a load control switch.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01H 21/00 360 H01H 21/00 330

Claims (5)

(57) [Claims] A plurality of load control switches to which a unique address is set, a load control terminal and a plurality of load control switches are connected to a central control unit by a pair of signal lines and transmitted by said signal lines. A printed circuit board provided with a signal processing circuit for controlling a load corresponding to each switch via the central control device and a control terminal; a box-shaped case body opened to the front; and a front opening of the case body. The cover to be attached is connected by the concave and convex engagement of the engaging portion and the engaged portion, and the device case in which the printed circuit board is housed, and each switch is operated integrally with the front side of the cover. A plurality of operation handles, and a load operation display provided on the printed circuit board corresponding to each operation handle and turned on / off by the signal processing circuit in response to a transmission signal from a central control device. A light emitting diode, an opening for the light emitting diode provided on the front surface of the cover, an elastic piece for movably supporting each operation handle, a mounting piece for attaching the device case to a wall surface, and the device case with screws. And a mounting hole provided on a mounting piece for mounting a decorative cover on the front side of the switch device. 2. The switch device according to claim 1, wherein the engaging portion and the engaged portion are provided on one of the case body and the cover. 3. The case according to claim 1, wherein an engaging piece having an engaging hole is provided on the case body, and an engaging protrusion engaging with the engaging hole is provided on a side surface of the cover. Switch equipment. 4. The switch device according to claim 1, wherein an engaging piece is provided on the cover, and an engaged portion to be engaged with the engaging piece is provided on the case body. 5. An attachment block is formed above and below the cover, and one end of each operation handle is connected to a connecting piece via a thin elastic piece to form an operation block. 2. The switch device according to claim 1, wherein the switch device is engaged with the front surface and pushes a push button of the switch protruding from the device case at the other end of each operation handle.