JPH10269918A - Housing structure for relay - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing structure for relays of various kind devices such as a relay terminal device, having improved assembly workability, and one module dimension of a distribution board JIS agreement dimension. SOLUTION: This structure is constituted by providing a nearly boxlike case 1 wherein one surface is opened and having one module dimension of a distribution board JIS agreement dimension; a first circuit base plate 2 having a load-controlling relay 4 to be housed in the case 1; plural connecting terminals 7 connected to the base plate 2 at one end; and a second circuit base plate 3 thereto another end side of the terminals 7 is connected, and also having an operation circuit for operating the relay 4. In this case, the relay 4 is juxtaposed, toward in the longitudinal direction of the circuit base plate to the base plate 2, as a relay having a width dimension smaller than one module dimension of the distribution board JIS agreement dimension; and also the base plate 3 is juxtaposed in the case 1 so that the base plate surface of the base plate 3 can be parallel to the base plate 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for accommodating a relay in a relay terminal device or the like used for remote control of an electric load, for example.

[0002]

2. Description of the Related Art Conventionally, a terminal device having a module size of a distribution board JIS agreement size, which is used by being stored in a storage case such as a distribution board for operating an electric load in a multiplex transmission control system. As FIG. 4, there is an exploded perspective view of FIG. The terminal device 10 includes an outdoor lighting device,
In the case of remotely controlling an electric load installed in a distributed manner, for example, as shown in FIG. 6, in a storage case A dispersedly installed for each lighting device, a breaker device B for controlling opening and closing of the electric load is arranged in parallel. The case 1, the first circuit board 2, the second circuit board 3,
Relay 4, load side wire 5, signal side wire 6, tape wire T
It has. Then, the distribution board is fixed to a mounting plate 9 to which various devices having a size of one module, which is a JIS contract size, are mounted.

The case 1 includes a body 11 and a lid 12. The body 11 is made of a synthetic resin material and has a substantially rectangular opening 11a and a bottom 11b, and is formed in a substantially box-like shape with a single-sided opening having a module size equivalent to the distribution board JIS agreement size. The body 11 is provided with a pair of ridges 11c on a pair of inner side surfaces opposed to each other in the longitudinal direction, the pair of ridges 11c being parallel to the direction from the opening 11a to the bottom 11b.
A groove 11d is formed between the ridges 11c.
The lid 12 is covered with a cover so as to cover the opening 11a of the body 11, is formed in a substantially rectangular plate shape with a synthetic resin material, and has cutouts 12 at both end corners in the longitudinal direction.
a are respectively formed. And the notch 12
The protruding portion between "a" and "a" is an engaging piece 12b that engages with an engaging hole 11e provided near the ridge 11c of the body 11, and windows 12c and 12d are formed in the center. ing.

The first circuit board 2 has a relay 4 for load control, is formed in a substantially rectangular shape, and has a relay 4 and the like disposed at one end in the short direction, and has the other end disposed at the other end. It is connected to a second circuit board 3 described later by a tape wire T corresponding to a plurality of connection terminals. Also, the first circuit board 2
The cover 12 extends from one end corner in the longitudinal direction to the outside of the case 1.
The load-side electric wire 5 led out through the notch 12a is connected by soldering.

[0005] The second circuit board 3 has an operation circuit for operating the relay 4 and is formed in a substantially rectangular shape, and has six dip switches 31a at one end in the longitudinal direction.
, And a load number setting switch 32 having two DIP switches 32a, etc., are provided at the other end through the notch 12a of the cover 12 to the outside of the case 1. The signal side wire 6 to be connected is connected by soldering. This second circuit board 3
The tape wire T is connected to the first circuit board 2, and has a function of operating the relay 4 based on an operation signal input via the signal-side wire 6.

The relay 4 is a so-called sealed relay in which a relay main body (not shown) is sealed inside the outer shell 4a.

[0007] The assembling of the terminal device 10 described above is firstly performed by the first
The two ends of the circuit board 2 in the longitudinal direction are the groove portions 11 of the body 11.
d, the first circuit board 2 and the second circuit board 3 connected by the tape wire T are appropriately screwed to the body 11, and an epoxy resin or the like is placed inside the body 11. Is filled, and the connection portion of the second circuit board 3 and the signal side wire 6 by soldering and the connection portion of the first circuit board 2 and the load side wire 5 by soldering are filled. Is hermetically sealed. Next, the lid 12 is covered from the opening 11a side, and the engagement piece 12 of the lid 12 described above is covered.
b is engaged with the engagement hole 11e of the body 11, and the opening 11
As a is covered, the relay is accommodated in the inner space 13 surrounded by the body 11 and the lid 12 together with the first and second circuit boards 2 and 3. In addition, six DIP switches 3 of an address setting switch 31 and a load number setting switch 32 provided on the second circuit board 3 are provided.
The 1a and the two DIP switches 32a are exposed from the windows 12c and 12d of the lid 12, and can be operated.

[0008] The above-mentioned relay accommodating structure has a locking portion 9a which locks to locked portions 11f and 11g provided on outer surfaces at both ends in the longitudinal direction of the body 11, respectively.
A storage case A shown in FIG. 6, which is attached to, for example, a pole for outdoor lighting or the like via a mounting plate 9 provided with 9b.
Even if it is installed inside and where it is installed in a place with relatively high humidity or where rainwater is directly applied, the relays arranged on the circuit board can operate normally without corrosion near the screw holes etc. .

[0009]

By the way, the above-mentioned first method is used.
As shown in FIG. 5A, the circuit board 2 and the second circuit board 3 are connected to each other by a tape wire T so as to be orthogonal to each other, and are formed to have a module size of the distribution board JIS agreement size. It is housed in a case 1 composed of a body 11. Therefore, when the load-side electric wires 5 and the signal-side electric wires 6 connected to the respective circuit boards are led out of the case 1 through the cutouts 12 a of the cover 12, the end T
Since a bending stress is applied to a, it is difficult to insert and fix the first circuit board 2 and the second circuit board 3 at predetermined positions, and it is difficult to assemble. Further, the end portion Ta of the tape electric wire T may be broken due to repeated bending during the accommodation operation at the time of assembly.

The present invention has been made in view of the above circumstances, and has as its object to improve the assembly workability.
An object of the present invention is to provide a structure for accommodating relays of various devices, such as a relay terminal device having a one-module size, which is a JIS contract size of a distribution board.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a relay housing structure comprising a distribution board JIS.
A substantially box-shaped case having a one-sided opening having a contract size of one module, a first circuit board having a load control relay housed in the case, and a plurality of ends connected to the first circuit board at one end. A connection terminal, the other end of the connection terminal is connected and a second circuit board having an operation circuit for operating the relay, the housing structure of the relay comprising:
The relay is arranged side by side in the longitudinal direction of the circuit board on the first circuit board as having a width smaller than one module size of the distribution board JIS agreement size,
The second circuit board is juxtaposed in the case so that a surface of the second circuit board is parallel to the first circuit board. Thus, the first circuit board on which the relays are juxtaposed in the longitudinal direction of the circuit board and the second circuit board are juxtaposed.

Further, in the relay accommodating structure according to the second aspect, the connection terminal according to the first aspect is erected substantially vertically on one of the first circuit board and the second circuit board.
As a result, the connection terminal is set up substantially vertically on one of the first circuit board and the second circuit board.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a relay housing structure according to the present invention will be described below with reference to FIGS. FIG. 1 is an exploded perspective view of a terminal device having the relay housing structure of the present invention. 2A and 2B are diagrams of the storage structure of the relay shown in FIG. 1, wherein FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a right side view. FIG. 3 is a front view of a main part of the storage structure of the relay shown in FIG. 1 in an assembled state of a circuit board.

The housing structure of this relay is the same as that described in the prior art, and is similar to the case 1, the first circuit board 2, the second
A terminal device 10 of a built-in relay type comprising a circuit board 3, a relay 4, a load-side electric wire 5, a signal-side electric wire 6, and a filling member 8 described above. What is different from the conventional example is that the relay 4 has a width smaller than one module size of the distribution board JIS agreement size and is transferred to the first circuit board 2 in the longitudinal direction of the first circuit board 2. And the second circuit board 3 is arranged side by side in the case 1 so that the board surface of the second circuit board 3 is parallel to the first circuit board 2, and the connection terminals The point is that the corresponding terminal strip 7 is erected substantially vertically on the first circuit board 2.

The case 1 includes a body 11 and a lid 12. The body 11 is formed of a synthetic resin material and has a substantially rectangular opening 11a and a bottom 11b, and is formed in a substantially box-like shape with a one-sided opening having a module size equivalent to the JIS common size of a distribution board. The body 11 positions and holds an outer shell 4a of the relay 4 having a width smaller than one module size of the distribution board JIS agreement size in an inner space portion, and supports a first circuit board described later. 11h is formed appropriately, and a locking boss 11i for locking the electric wire alignment plate 11j for pressing and aligning the load-side electric wires 5 with the screw S from the bottom 11b is provided. The lid 12 is covered so as to cover the opening 11a of the body 11, and is formed of a synthetic resin material into a substantially rectangular plate shape, and cutouts 12a are formed at both end corners in the longitudinal direction. Have been. The protruding portion between the notches 12a is an engaging piece 12b that engages with an engaging hole 11e provided in the body 11, and windows 12c, 12c are provided at the center.
d is formed.

The first circuit board 2 has a relay 4 having a width smaller than one module dimension of the distribution board for load control according to JIS, and is formed in a substantially rectangular shape. The relays 4 are arranged substantially in the center in the longitudinal direction of the circuit board, and terminal pieces 7 corresponding to a plurality of connection terminals are respectively provided substantially vertically at both ends of the other surface in the substantially rectangular longitudinal direction. ing. The end of the terminal strip 7 is connected to a second circuit board 3 to be described later by soldering. In addition, the first circuit board 2 is configured such that the load-side electric wire 5 led out through the notch 12a of the cover 12 to one corner of the longitudinal direction and the outside of the case 1 is connected to the terminal piece 4b of the relay 4,
4b is directly connected by soldering and is led out in the same direction as the longitudinal direction of the circuit board. Therefore, the load side electric wire 5
Can be accommodated without bending, and as compared with the case described in the conventional example, the assembling operability such as installation into the case 1 formed with one module size of the distribution board JIS agreement size is improved.

The second circuit board 3 has the same function as that described in the conventional example, and is provided at the appropriate position in the longitudinal direction of the substantially rectangular shape with the tip of the terminal piece 7. It is electrically connected by soldering or the like.

Next, a procedure for assembling the terminal device 10 with the relay 4 housed in the case 1 will be described.
First, the first relay 4 is arranged side by side in the longitudinal direction.
Is inserted into the first circuit board 2 with an electric wire alignment plate 11j for pressing and aligning the load-side electric wires 5 by supporting the relay 4 with the support rib 11h. The connected load-side electric wires 5 are pressed and aligned, and are locked to the locking bosses 11i with screws S. Thereafter, the distal end of the terminal strip 7 erected on the first circuit board 2 is connected to the second circuit board 3 by soldering, and the relay 4 is arranged in the first circuit board in the longitudinal direction of the circuit board. The board 2 and the second circuit board 3 are arranged side by side, and the load-side electric wire 5 and the signal-side electric wire 6 are led out from a predetermined notch 12a. Then, the inside of the body 11 is filled with a filling member 8 such as an epoxy resin, and the connection between the first circuit board 2 and the load-side electric wire 5 by soldering and the connection between the second circuit board 3 and the signal-side electric wire 6 are formed. The connection part by soldering is hermetically sealed. Then, the lid 12 is covered from the opening 11a side, and the engaging piece 12 of the lid 12 described above is covered.
b is engaged with the engagement hole 11 e of the body 11, and the opening 11
a is covered, and the relay 4 is accommodated in the inner space 13 surrounded by the body 11 and the lid 12 together with the first and second circuit boards 2 and 3.

The above-described relay accommodating structure has the locking portions 9a, 9 which are respectively locked to the locked portions 11f, 11g provided on the outer surfaces at both ends in the longitudinal direction of the body 11.
6 is attached to a storage box A or the like shown in FIG. 6 which is attached to a pole or the like for outdoor lighting via an attachment plate 9 provided with b. Note that the storage box A is attached to a relatively low position such as an outdoor lighting pole or the like that is erected outdoors. When a mercury lamp load is connected to the pole for outdoor lighting as a relatively large load, for example, in the storage box A, as shown in FIG. 6, the storage box A is disposed between the electric wire to the commercial power supply and the mercury lamp load. Although a magnet B is provided, when a relatively small load such as a fluorescent lamp load is connected, the electric wire to the commercial power supply and the fluorescent lamp load are directly connected.

The operation circuit of the relay 4 is composed of electronic components provided on the first and second circuit boards 2 and 3, and in this case, an operation signal input through the signal side electric wire 6 is provided. The relay 4 is operated based on. That is, in the terminal device 10, the address signal in the time-division multiplex transmission signal as the operation signal is identified by the setting state of the six DIP switches 31a of the address setting switch 31 disposed on the second circuit board 3, and the load is determined. The above-described lighting load is operated as a load number that matches the setting state of the two DIP switches 32a of the number setting switch 32.

According to the above-described relay housing structure,
Since the first circuit board 2 and the second circuit board 3 in which the relays 4 are juxtaposed in the longitudinal direction of the circuit board are juxtaposed, the assembling workability is improved. In addition, since the connection terminals are set up substantially vertically on one of the first circuit board and the second circuit board, the connection between the circuit boards can be easily performed. The assembly workability is further improved.

In this embodiment, the inner space 13 of the case 1 is provided between the relay 4 and the first and second circuit boards 2 and 3 and the inner surface of the case 1 by a filling member made of a resin material. 8, for example, the connection portion between the first circuit board 2 and the load-side electric wire 5 and the connection portion between the second circuit board 3 and the signal-side electric wire 6 all have sufficient corrosion resistance. In such a case, the filling member 8 does not have to be filled, and in that case, the labor for manufacturing is reduced.

[0023]

According to the first aspect of the present invention, the first circuit board and the second circuit board are arranged side by side in the longitudinal direction of the circuit board. Therefore, the assembly workability is improved.

According to a second aspect of the present invention, in addition to the effect of the first aspect, the connection terminal is arranged so as to be substantially perpendicular to one of the first circuit board and the second circuit board. Since it is installed, assembly workability is further improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a terminal device provided with a relay housing structure of the present invention.

FIGS. 2A and 2B are diagrams of a housing structure of the relay shown in FIG. 1, wherein FIG. 2A is a plan view, FIG. 2B is a front view, and FIG.

FIG. 3 is a front view of a main part of the storage structure of the relay shown in FIG. 1 in an assembled state of a circuit board.

FIG. 4 is an exploded perspective view of a terminal device having a conventional relay housing structure.

5A and 5B are diagrams showing connections between circuit boards having the relay accommodating structure shown in FIG. 4, wherein FIG. 5A is a front view and FIG. 5B is a side view.

FIG. 6 is an explanatory diagram of a use state of a terminal device having a relay accommodation structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 1st circuit board 3 2nd circuit board 4 Relay 7 Terminal piece (connection terminal)

Claims (2)

[Claims] 1. A distribution box having a substantially box-shaped case having one module size of the JIS agreement size, a first circuit board having a load control relay housed in the case, and one end connected to the first case. A second circuit board having a plurality of connection terminals connected to one circuit board, the other end of the connection terminals being connected, and an operation circuit for operating the relay; Relays are arranged side by side in the longitudinal direction of the circuit board on the first circuit board as having a width smaller than one module size of the distribution board JIS agreement size,
A structure for accommodating a relay, wherein the second circuit board is arranged in the case so that a surface of the second circuit board is parallel to the first circuit board. 2. The relay housing structure according to claim 1, wherein said connection terminal is set up substantially vertically on one of said first circuit board and said second circuit board.