JPH05304712A - Wiring device - Google Patents

Abstract

PURPOSE:To reduce the number of erroneously connected wires. CONSTITUTION:The title device is provided with connecting sections 2a-2d for respectively connecting power supply cables, feeder line cables, switches, and loads which are turned on/off through the switches. Indications (a) indicating the constitutions of internal circuits are provided on the upper surface of a housing. Indications (b) indicating the voltage-side electrodes, ground-side electrodes, and grounding electrodes are also provided. The parts of the indications (a) and (b) corresponding to the voltage-side electrodes, ground-side electrodes, and grounding electrodes are classified by different colors.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring device used for indoor wiring and the like.

[0002]

2. Description of the Related Art As a conventional wiring, as shown in FIG. 4, wiring equipment (hereinafter referred to as a joint box) 1
Is arranged at various places in the room and various switches and loads in the room can be freely wired through the joint box 1. A power cable 3 from a distribution board and a plurality of wiring cables 4 are connected to the joint box 1. The joint box 1 is installed, for example, in the ceiling or the like so as to be inconspicuous. And
As the wiring device 5, a device equipped with a device cable 6 is used.
A harness plug 11 is attached to the tip of the instrument cable 6. Further, a harness connector 10 is attached to the tip of the wiring cable 4 so that the wiring device 5 and the wiring cable 4 are connected by harness connection.

The joint box 1 includes a power source connecting portion 2 for connecting the power source cable 3 and a wiring cable 4 for branching out a plurality of power source lines and outputting the branched power source lines to a wiring device 5 such as an outlet. A plurality of connecting portions 2 for the feed wiring to be connected, a switch 9 and this switch 9
A plurality of connecting portions 2 for a switch and a load, which are connected to a load 7 such as a lighting device that is turned on and off by controlling the supply of power via the power supply.

These connecting portions 2 have a so-called quick-connect terminal structure, and are provided at both ends of the joint box 1, respectively. Each connecting portion 2 has a plurality of wire insertion holes,
These wire insertion holes are formed in a horizontal row in the width direction. The cables 3 and 4 can be connected to the joint box 1 by inserting the core wires from which the sheaths of the cables 3 and 4 have been stripped and elastically holding the core wires with the terminal plate and the locking spring provided inside. Be seen. Further, when disconnecting the cables 3 and 4 connected by the quick connection method, a tool or the like can be inserted through the release hole and the release button provided inside can be operated. .. In addition,
This type of quick-connect terminal is well known in the art.

The indoor wiring shown in FIG. 4 will be briefly described. A load 7, which is a lighting device provided on the ceiling, is connected to the joint box 1 via a hook ceiling as a wiring device 5 for connecting a load, and a switch 9 provided near the door 30 at the entrance of the room is jointed. Box 1
Connected to. A circuit that controls the supply of power to the load 7 via the switch 9 is formed between the connecting portion 2 of the joint box 1 to which the switch 9 and the load 7 are connected. Therefore, the load 7 can be turned on and off by the switch 9. In addition, the load 7 which is a bed lighting provided on the wall
Is connected to the joint box 1 through an outlet, which is a wiring device 5 for load connection, and is connected to a switch 9 for operating the above-mentioned ceiling lighting device provided near the door 30 at the entrance of the room. The switch 9 provided on the wall surface and the switch 9 provided on the wall surface near the bed 31 are connected to the joint box 1. The connecting portion 2 of the joint box 1 to which the switch 9 and the load 7 are connected
In between, a so-called three-way switch circuit is formed between the load 7 and the two switches 9. Therefore, the bed lighting can be turned on and off by any of the switches 9.

The harness plug 11 and the harness connector 10 will be briefly described. The harness plug 11 is provided with a recess at the tip, and three plug blades are provided in the recess, and the harness connector 10 has a projection at the tip which is fitted into the recess of the harness plug 11. A blade insertion hole is formed in the tip surface of the protrusion, and a blade receiving spring to which the blade of the harness plug 11 inserted through the blade insertion hole is connected is provided inside. Here, a quick-connect terminal similar to that of the joint box 1 is housed inside the rear end portion of the harness connector 10, and the core wire of the wiring cable 4 is inserted in the electric wire insertion hole of the connection portion formed on the rear end surface. The wiring cable 4 can be connected by inserting it by a quick connection method. The harness plug 11 is attached in advance to the instrument cable 6 of the wiring instrument 5. A lock piece 12 for fixing the connection state of the harness connector 10 is provided on the upper surface of the harness plug 11, and when the lock piece 12 is pushed, the harness connector 10 is pressed.
The harness connector 10 can be removed by releasing the fixed state of. The harness connector 10 and the harness plug 11 are also well known.

[0007]

By the way, in the case of the joint box in which a plurality of cables are connected as described above, although the wiring is easy, there is a possibility that the wiring may be erroneously connected. Therefore, in order to improve this point, it has been attempted to display an internal circuit or add a display for clarifying a connection target. However, since the display cannot be recognized with certainty, there is a risk of misconnection.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a wiring device capable of minimizing misconnection.

[0009]

According to the present invention, in order to achieve the above object, a display showing the structure of an internal circuit is provided on the upper surface, and a voltage side pole, a ground side pole and a ground pole of a connection portion are connected respectively. A display showing the terminal portions to be formed is provided, and the portions corresponding to the voltage side pole, the ground side pole, and the ground pole of each display are color-coded with different colors.

It is preferable that the above-mentioned color coding is performed according to the color of the coating of the core wire of the cable. Further, by arranging the connection portion connected to the switch and the load separately on the left and right, it is possible to reduce the risk of mis-connecting the switch and the load. Furthermore, if a space for writing is provided on the upper surface of the connection portion, a caution mark or the like can be added at the time of wiring work, which improves usability.

[0011]

The present invention has the above-mentioned configuration,
The voltage side pole, the ground side pole, and the ground pole connection part of the power supply line can be clearly identified by the color to minimize misconnection.

[0012]

1 to 3 show an embodiment of the present invention. In this embodiment, a basic unit A to which a predetermined switch or load is connected and an additional unit B to which an additional switch or load is connected are formed. For example, as the basic unit A, the one shown in FIG. 1 (a) is used. In this basic unit A, a connecting portion 2c to which a power cable from a distribution board is connected and a plurality of connecting portions 2 to which a switch and a load to be turned on / off by the switch are connected.
An internal circuit that includes a and 2b and that supplies power to a load via a switch is provided by a conductive plate 5 that will be described later. The basic unit A is provided with a plurality of connecting portions 2d for feed wiring, and for example, power is supplied to the additional unit B. A circuit for turning the load on and off with the above switch is referred to as a switch circuit 1a in the following description. The circuit for the feed wiring that branches the power source is called the feed circuit 1b.

However, the structure of the basic unit A is not necessarily limited to the above-mentioned structure, and as shown in FIG. 3, for example, as a switch, a heat ray from a human body is detected to automatically load the load. Switch to turn on and off (hereinafter,
It is called a thermal sensation automatic switch, and can be connected to a switch circuit 1c inside the joint box 1), or a so-called three-way switch circuit (hereinafter, referred to as a two-way switch circuit in which two switches can turn on and off the same load). The operation circuit 1d) may be configured.

Here, in the case of a switch that requires power supply, such as a thermal sensation automatic switch (or a wireless switch that can remotely turn on / off a load, etc.), the voltage side electrode is used. Besides, the ground side pole also needs to be connected to the switch S ′. However, the switch S '
Since it is uneconomical to exclusively use the connecting portion 2a only for the purpose, all the connecting portions 2a may have a three-terminal structure so that both the switches S and S'can be connected.

The additional unit B has basically the same structure as the basic unit A, and is capable of connecting a plurality of switches and loads in response to the increase in devices used in the room. By the way, as described above, in recent offices and the like, the number of devices that use 200V as a power source is increasing, such as lighting equipment. For these devices and devices used around water in general houses, such as ventilation fans, it is necessary to perform grounding according to regulations such as electrical equipment standards. Therefore, the connecting portion for connecting the load of the basic unit A and the additional unit B of this embodiment is provided with a terminal for a ground electrode for grounding. As shown in FIG. 1 and the like, an indicator B indicating the type of an object to be connected to the internal circuit is provided on the upper surface of the joint box 1 and an indicator B indicating the type of the terminal of the connecting portion 2 is provided. . Here, in the display B, W indicates a ground side pole, a ground mark indicates a ground pole, and no mark indicates a voltage side pole.

As shown in FIG. 2, the basic unit A and the additional unit B are connected to each other and used. The basic unit A is composed of a flat rectangular parallelepiped housing, each side of both ends is cut out, and a connecting groove 21 is formed from the cutout 25 along the width direction. The housing of the additional unit B also basically has a flat rectangular parallelepiped shape similar to the basic unit A except that the dimension in the longitudinal direction is different, and a connecting convex portion 22 that fits into the connecting groove 21 is formed at one end. Two protrusions 24a, 24b are provided on the edge portion of the upper surface of the connecting convex portion 22 in a protruding manner. The portion of the connecting convex portion 22 corresponding to the cutout portion 25 is thicker than the thickness of the connecting convex portion 22 including the protrusions 24a and 24b, and this portion does not fit into the connecting groove 21. Then, on the side of the basic unit A, the above-mentioned protrusion 24
Recesses 23a and 23b into which a and 24b are fitted are formed. Here, the recess 23a is formed in a portion extending from the cutout portion 25 to a slightly central side, and the recess 23b is formed in the recess 23a.
It is formed closer to the center than the entire length except for the recess 23a in the portion projecting above the housing. The ridge 24a is inserted from the cutout portion 25, and the ridge 24b is inserted from the portion formed in the leftward portion of the recess 13a and opening in the end direction.

When connecting the basic unit A and the additional unit B of this embodiment, the cutout portion 2 of the basic unit A is connected.
5 and the openings of the recesses 23a, the protrusions 24a, 24b
And the end faces of the basic unit A and the additional unit B are butted against each other. In this state, the connecting convex portion 22 fits into the connecting groove 21. Next, one or both units A and B are slid so that the connecting convex portion 22 is slid to the right side in the width direction of the basic unit A, and as shown in FIG.
Match the position in the width direction with. As a result, the additional unit B is connected to the basic unit A. Here, the basic unit A in the connecting portion of each unit A and B
The connection disconnection in the longitudinal direction of the is blocked by the engagement between the recesses 23a and 23b and the protrusions 24a and 24b.

The connecting portion 2 of each of the units A, A ', B has the so-called quick-connect terminal structure described above.
Generally, the housing of the joint box 1 of this type includes a body 41 in which a conductive plate is disposed, and a body 41.
The cover 42 is attached to the cover 42, and the connecting portion 2 is divided into upper and lower halves to form the body 41 and the cover 42.
With the cover 42 attached to the body 41, for example, as shown in FIG.
The structure is as shown in (b). The connection portion 2 of the present embodiment is provided with a release button so that the connection state of the cable can be released, and the operation of the release button is performed through the release hole 44 formed on the side surface of the raised portion of the cover 42. Is done.

The end surface of the connecting portion 2 is provided with a recess, and the recess 3
Individual electric wire insertion holes 40 are formed. This wire insertion hole 4
0 has a large diameter on the core wire insertion side and a smaller diameter toward the inside so that the core wire can be easily inserted and the core wire can be reliably connected. Basic unit A above
The internal circuit such as is composed of a conductive plate block configured by connecting a plurality of conductive plates to each other. It should be noted that the joint box 1 that can be used for various purposes is configured by using a common housing by changing the arrangement and connection state of several kinds of conductive plates by making the common parts as common as possible to be common. can do. In addition, in the case of this joint box 1, a nameplate for identifying the internal circuit and the type of the connecting portion at a glance is attached (or stamped or printed) on the upper surface of the housing, and the nameplate is attached. Even if the appearance is the same, it is possible to easily understand what kind of application it corresponds to.

By the way, in the case of the present embodiment, further,
The connecting portions 2a and 2b, to which the switch and the load are connected, are arranged so as to be separated left and right as much as possible. This is preferable because it is possible to further reduce the risk of incorrect connection between the switch and the load. Recently, 200V
As a three-core VVF cable for a power supply for use as a power source, one in which the core portion is covered in different colors of black, white, and green has been commercialized.
Therefore, the display a showing the internal circuit on the name plate and the like and the display b showing the type of the terminal of the connection portion 2 are color-coded so as to match the color of the coating of the core wire of the cable, and the position of the core wire to be connected can be easily adjusted. I understand it.

Further, in the case of the present embodiment, a margin portion C is provided on the lower side of the step which is the upper surface of the connection portions 2a to 2c of the cover 41 to which the switches and loads are connected. For this reason,
When there are special notes or cautions, a mark or the like can be added to that point in order to call attention. By doing this, it is easy to use. By the way, the basic units A and B shown in FIG. 1 are attached to a construction surface such as a ceiling by screwing a mounting screw (not shown) onto the construction surface through a mounting hole 50 formed in the housing. Although the basic unit A and the additional unit B are connected in the width direction in the above description, they may be connected in the thickness direction (for example, the direction orthogonal to the paper surface of FIG. 1A).

[0022]

As described above, according to the present invention, the display showing the structure of the internal circuit is provided on the upper surface, and the display showing the terminal portion to which the voltage side pole, the ground side pole and the ground pole of the connection portion are respectively connected. Since the voltage side pole, the ground side pole and the part corresponding to the ground pole of each display are color-coded with different colors, the voltage side pole, the ground side pole and the ground pole connection part of the power supply line are clearly defined by the color. It can be identified and misconnection can be minimized.

Further, if the color coding is performed according to the color of the coating of the core wire of the cable, the wiring mistake can be further reduced.
Further, by arranging the connection part connected to the switch and the load separately on the left and right, it is possible to reduce the risk of misconnecting the switch and the load. Furthermore, if a space for writing is provided on the upper surface of the connection portion, a caution mark or the like can be added at the time of wiring work, which improves usability.

[Brief description of drawings]

1A to 1D are respectively a plan view of a basic unit of an embodiment of the present invention, a side view thereof, a plan view of an additional unit, and a side view thereof.

FIG. 2 is a plan view showing a connected state of both units of the above.

3A and 3B are a plan view and a side view showing another basic unit.

FIG. 4 is an explanatory diagram showing an indoor wiring method.

[Explanation of symbols]

 A, A'Basic unit B Additional unit 2a to 2d Connection part a, b Display c Margin part

Claims (4)

[Claims] 1. A power supply connecting part for connecting a power cable, a plurality of connecting parts for sending wiring for branching and outputting a plurality of power supply lines internally, a switch, and power supply control via the switch. In a wiring device used for wiring a power supply line of a single-phase three-wire system, which has a plurality of connecting portions for a switch and a load for respectively connecting a load to be turned on and off, a configuration of an internal circuit on an upper surface And a display showing the terminal portion to which the voltage side pole of the connection portion, the ground side pole and the ground electrode are respectively connected, the voltage side pole of each display,
A wiring device characterized in that a ground side electrode and a portion corresponding to the ground electrode are color-coded with different colors. 2. The wiring device according to claim 1, wherein the color coding is performed according to the color of the coating of the core wire of the cable. 3. The wiring device according to claim 1, wherein the switch and the connection portion connected to the load are separately arranged on the left and right sides. 4. The wiring device according to claim 1, wherein a space for writing is provided on the upper surface of the connection portion.