JPH05304710A - Wiring device - Google Patents

Abstract

PURPOSE:To install an additional unit to a wiring device as necessary by constituting the wiring device of a basic unit for connecting prefixed switches and loads and an additional unit for connecting additional switches and loads. CONSTITUTION:A basic unit A has a connecting section 2c for connecting power supply cables from a distribution board, a plurality of connecting sections 2a and 2b for connecting switches and loads which are turned on/off through the switches, and an internal circuit which supplies electric power to the loads through the switches and is formed of conductive plates 45 incorporated in the unit A. The unit A is provided with a connecting section 2d for connecting a plurality of feeder lines so that power supply can be made to, for example, an additional unit B. A switching circuit 1a turns on/off the loads through the switches. A feed circuit 1b is used for power supply shunting feeder lines. The additional unit B is fundamentally has the same structure as that of the basic unit A and can connect pluralities of switches and loads even when the number of equipment, etc., used in a room increases.

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. 25, wiring equipment (hereinafter referred to as a joint box) is used.
There is one in which 1 is arranged in various places in the room and various switches and loads in the room can be freely wired through the joint box 1. Joint box 1 above
A power cable 3 from a distribution board and a plurality of wiring cables 4 are connected to the. The joint box 1 is installed, for example, in the ceiling or the like so as to be inconspicuous. Then, a wiring instrument 5 provided with an instrument cable 6 is used, and a harness plug 11 is provided at the tip of the instrument cable 6.
Is attached. 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. 25 will be briefly described. A load 7, which is a lighting fixture provided on the ceiling, is connected to the joint box 1 via a hook ceiling as a wiring fixture 5 for connecting a load, and a switch 9 provided near a door 30 at the entrance of the room is jointed. It is connected to Box 1. 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. Further, 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 connecting the load, and the ceiling is provided near the door 30 at the entrance of the room. A switch 9 provided in series with a switch 9 for operating the lighting equipment,
A switch 9 provided on a wall surface near the bed 31 is connected to the joint box 1. These switches 9
A so-called three-way switch circuit is formed between the load 7 and the two switches 9 between the connecting portion 2 of the joint box 1 to which the load 7 and the load 7 are connected. 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 this type of conventional indoor wiring, the internal circuit of the joint box 1 is provided in a large amount in consideration of an increase in the number of loads 7 and switches 9 to be installed. Used. In this case, the internal circuit of the joint box 1 is wasted, which is uneconomical.

Therefore, it is conceivable that the internal circuit of the joint box 1 is minimized and the additional indoor wiring is performed separately, but in this case, the indoor wiring can be connected easily and accurately. There is a problem that the advantage is lost. The present invention has been made in view of the above points, and an object of the present invention is to provide a wiring device that enables simple and accurate wiring without unnecessarily increasing the cost.

[0009]

In order to achieve the above object, in the invention of claim 1, a connecting portion for a power source for connecting a power source cable and a feed wiring for branching a plurality of power source lines and outputting them internally. A base unit having a plurality of connecting portions, a switch and a plurality of connecting portions for the switch that respectively connect a switch and a load to be turned on and off by controlling power supply through the switch, The basic unit is provided with a connection part for the power supply, a plurality of connection parts for switches and loads, and a switch for wiring and an additional unit that can be connected to the basic unit according to an increase in load.

As described in claim 2, even when the switch is operated by using a commercial power source as a power source to turn on and off a load, it can be connected to the wiring device as an additional unit. It suffices to use a direct connection between the output of the switch and the load, and to supply the power for the switch from the connection portion for the feed wiring of the basic unit.

Further, as described in claim 3, when the load is operated by a single-phase three-wire type power source, a switch for operating the load by turning on and off the switch and the commercial power source is used. If both of them are connected to the same connection part, connect the connection part that connects the switch to the terminal directly connected to one end of the load connection terminal of the connection part to which the load is connected, and the voltage of the power supply line. A three-terminal structure including terminals to which the side pole and the ground side pole are respectively connected may be used.

Further, as described in claim 4, it is preferable that the connecting portion between the basic unit and the additional unit is provided with an engaging portion that engages with each other to prevent disengagement. Further, as described in claim 5, when there is an unused electric wire connecting portion in the connecting portion, a blocking member for closing the electric wire connecting portion is provided to prevent dust and dirt from entering the inside. In addition, misconnection can be prevented.

Further, in a wiring device mounted on a construction surface such as a ceiling by mounting screws as described in claim 6, when the connection portion is fixed by fixing the construction surface of the mounting screw, a structure is obtained. Is preferable because it can be simplified. Further, as described in claim 7, when the structure of the connecting portion of the cable is a quick-connect terminal structure, a protection device for insulating the cable connected to the connecting portion and the peripheral portion thereof is provided, and the covering is provided. It is possible to secure safety when peeled off too long.

[0014]

The present invention has the above-mentioned configuration,
It is possible to add additional units as needed,
The advantage of the basic unit that wiring can be performed easily and accurately is maintained as it is, and waste such as providing an extra circuit in the basic unit is eliminated, and an unnecessary increase in cost is suppressed.

[0015]

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 45, which will be described later, provided inside. 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. In addition,
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.

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, in recent offices and the like, an increasing number of devices such as lighting equipment are powered by 200V. 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. In addition,
As shown in FIG. 1 and the like, the upper surface of the joint box 1 indicates the type of the object to be connected to the internal circuit by a nameplate or the like, and the ground side pole is indicated by W and the ground pole is clearly indicated by the earth mark. Note that the unmarked terminals are the voltage side poles.

FIG. 5 shows a method of connecting the hot sensation automatic switch and a normal switch, which is a so-called single-sided switch, to the basic unit A '. 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.), see FIG. As shown, in addition to the voltage side pole, the ground side pole also needs to be connected to the switch S '. The load L is connected between the output of the switch S ′ and the ground side pole.

However, since it is uneconomical to use it exclusively for the switch S ', it is possible to connect either of the switches S and S'and to easily connect the switches S and S'to each other. Preferably. In this case,
Three methods shown in FIGS. 7A to 7C can be considered. As a first method, as shown in FIG. 7A, the connecting portions of the switches S and S ′ and the connecting portion of the load L have a three-terminal structure, and the terminals T ₁ and T ₄ are directly connected to each other. Connect and terminal T ₂
And terminal T ₅ are the ground side poles, terminal T ₃ is the voltage side pole, and terminal T
₆ is connected to the ground electrode. Where (a)
On the left side of (c) to (c), a method of connecting the switches S and S'to the connecting portion 2a side is shown. In addition, each switch S,
The input / output of S'is the terminal T ₁ at which the end of the input / output is located.
Means connected to the through T _3.

As a second method, as shown in FIG. 7B, the terminals T ₁ and T ₄ are directly connected and the terminal T ₂ is connected.
To the voltage side pole, terminals T ₃ and T ₅ to the ground side pole, and terminal T ₆
Is connected to the ground electrode. However, this method has a drawback that the power input cable of the thermal sensation automatic switch S ′ is twisted. The third method is shown in FIG.
As shown in FIG. 5, the connection portion 2a has a four-terminal structure, and the connection portion 2a of the first method is separately provided with a terminal T ₃ ′ connected to the voltage side pole. However, in this case, the terminal is 4
There is a problem that it becomes individual and the structure becomes complicated.

Therefore, in this embodiment, the first method is adopted. The switch S when the first method is adopted,
The respective connection methods of S'are shown in FIG. The basic unit A and the additional unit B are connected to each other as shown in FIG. The basic unit A is shown in FIG.
As shown in FIG. 5, the housing is formed of a flat rectangular parallelepiped housing, one end of each end is cut out, and the 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 corresponding to the longitudinal direction of the basic unit A is different, and the housing is fitted into the connecting groove 21 at one end. The convex portion 22 is formed, and the two protrusions 24 a, 24 are formed on the edge portion on the upper surface side of the connecting convex portion 22.
b is projected. The cutout portion 25 of the connecting convex portion 22
The portion corresponding to is the connecting convex portion 2 including the protrusions 24a and 24b.
The thickness is made larger than the thickness of 2 so that this portion does not fit into the connecting groove 21. Then, on the side of the basic unit A, recesses 23a and 23b into which the protrusions 24a and 24b are fitted are formed. Here, as shown in FIG. 8A, the recess 23a is formed in a portion extending from the cutout portion 25 to a slightly central side, and the recess 23b is closer to the center than the recess 23a and is located above the housing. Is formed over the entire length excluding the recess 23a of the portion projecting from. And the ridge 24a
Is inserted from the cutout portion 25, and the protrusion 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 rightward 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.

By the way, when the hot sensation automatic switch S'and the like can be connected, the basic unit A'shown in FIG. 3 may be used, but the basic unit A shown in FIG. 1A may also be used. it can. However, in this case, the following additional unit B'is used. As shown in FIG. 4, the additional unit B ′ is only for directly connecting the connecting portion 2e for connecting the thermal sensation automatic switch S ′ and the connecting portion 2f for connecting the load L. A plurality of internal connection circuits 1e are provided. When using this additional unit B ',
The thermal sensation automatic switch S ′ is connected between the voltage side pole and the ground side pole of the connection portion 2d of the feed wiring of the basic unit A, and the thermal sensation automatic switch S ′ is supplied with power. The output of'is connected to one connection 2e of the additional unit B'and the load L is connected to the other connection 2f. Also in this case, when the human body is detected by the thermal sensation automatic switch S ′, power is supplied to the load L and the load L operates.

The connecting portion 2 of each of the units A, A ', B, B'has the so-called quick-connect terminal structure described above. Normally, the housing of the joint box 1 of this type has a body 41 to which the conductive plate block C is attached.
And a cover 42 attached to the body 41, the connecting portion 2 is divided into upper and lower parts to form a body 41 and a cover 42. For example, with the cover 42 attached to the body 41, The structure is as shown in FIG. The connection part 2 of this 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 covered by the cover 4
2 is performed through a release hole 44 formed on the side surface of the raised portion of 2.

The end face of the connecting part 2 is provided with a recess, and the end face of the connecting part 2 is
Individual electric wire insertion holes 40 are formed. This wire insertion hole 4
The structure of the body 41 in which 0 is formed is shown in FIG. The wire insertion hole 40 is formed by the concave groove 40a, and the concave portion 41a forms the concave portion of the end surface of the connecting portion 2. Here, in order to easily insert the core wire on the side where the cable is inserted and to securely connect the core wire, the diameter is formed large on the insertion side of the core wire and becomes smaller toward the inside.

By the way, as described above, not all the electric wire insertion holes 40 of this kind are used.
In this case, if the wire insertion hole 40 is left as it is,
There is a risk of dust and dirt entering and miswiring problems. Therefore, in order to prevent this, the blocking member 43 may be used. The closing member 43 of this embodiment is shown in FIGS.
As shown in FIG. 9, a neck portion 43a into which the rear portion of the wire insertion hole 40 is fitted is provided in the center portion, and on both sides of the neck portion 43a, there are gradually reduced diameters from the outer side of the rear portion of the wire insertion hole 40. It has a head 43b that fits. Here, the head 43b on both sides
The reason for forming is to prevent the occlusion member 43 from coming off and to prevent the blocking member 43 from being oriented during mounting.

The conductive plate 45 forming the internal circuit of the basic unit A and the like will be described with reference to FIGS. 10 to 17. In the case of this embodiment, the conductive plate 45 shown in FIGS. 10 to 12 is provided with the terminal plate portion 46 to which the locking spring is attached.
a to 45c and the conductive plates 45d and 45e shown in FIG. 13 to which the power supply lines are respectively connected, and FIGS. 14 to 16 which connect the conductive plates 45a to 45c to the conductive plates 45d and 45e.
And conductive plates 45f to 45h for connection shown in FIG.

The conductive plate 45a is formed into a substantially U-shape with the left side portion in FIG. 10 (a) opening laterally, and a lock plate spring is fixedly attached to the locking piece 46a in the terminal plate portion. 46 is formed on the right side of the conductive plate 45.
A fixing portion 47 having a downwardly opening concave portion 47a for fixing a is formed, and a dowel 48 for caulking and connecting to the conductive plates 45f to 45h is formed on the right side of the upper piece.

The conductive plate 45b is opposite to the conductive plate 45a in the left and right directions. The conductive plate 45c is a combination of the conductive plates 45a and 5b, that is, the terminal plate portions 46 are provided on both sides, and the plurality of fixing portions 4 are provided at the center portion.
7 and has a plurality of dowels 4 at the center of the upper surface.
8 is formed. The conductive plates 45d and 45e are rod-shaped ones in which a plurality of dowel caulking holes 49 are formed at equal intervals.
The conductive plates 45d and 45e have different lengths, and the conductive plate 45d is used for a basic unit, for example, and the conductive plate 45e is used for an additional unit.

The conductive plates 45f to 45h connect between the conductive plates 45a to 45c and the conductive plates 45d and 45e, and in the case of the present embodiment, they are single-phase three-wire type, for example, In the unit A, three conductive plates 45d are used, and these conductive plates 45d are arranged above the conductive plates 45a to 45c. Therefore, the height of the conductive plate 45f is adjusted by bending the conductive plate 45f into two. The conductive plate 45g has the same structure as the conductive plate 45f except that the length of the piece located on the lower side is different. Here, for example, a dowel 48 that fits into the caulking hole 49 of the conductive plate 45d is formed on the piece located above the conductive plates 45f and 45g, and the piece located below the conductive plate 45a to 45c. The dowel 49 has a caulking hole 49 formed therein. The conductive plate 45h is formed in a U-shape when viewed from above and is used for a two-position operation circuit that connects the two conductive plates 45b, and has caulking holes 49 formed at both ends.

FIG. 17 shows a conductive plate block C in which the conductive plates 45a to 45h are connected according to an internal circuit. With such a structure of the conductive plate block C, the conductive plates 45a to 45a-4
By changing the arrangement and connection state of 5h, it is possible to configure the joint box 1 that can be used for various purposes by using a common housing. 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. It is needless to say that the structure itself of the conductive plates 45a to 45h described above has been shown as an example, and a plurality of conductive plates 45 having other structures may be prepared and combined.

By the way, the basic units A and B shown in FIG.
The mounting on the construction surface such as the ceiling is performed by screwing a mounting screw (not shown) onto the construction surface through a mounting hole 50 formed in the housing. In the case of FIG. 1, the basic unit A and the additional unit B are connected to each other separately from the structure for attaching to the building surface. However, if the following method is adopted, both can be made into an integrated structure.

FIG. 20 shows the structure of the basic unit A. Ear pieces 51 project from both ends of the basic unit A.
A concave portion 52 into which 1 is fitted is formed in the additional unit B. Then, when the ear piece 51 and the recess 52 are fitted together, a mounting hole 50 that connects them is formed.
Through 0, screw the mounting screw to the construction surface. In this way, the units A and B are attached to the building surface at the same time when the units A and B are connected.

Further, as shown in FIGS. 21 and 22,
The structure of the connecting portion of each unit A and B is almost the same as that of the case of FIG. 1 (however, the position of the additional unit B is freely changed in the width direction), and the mounting hole 50 is formed at the position corresponding to the connecting portion. Then, as in the case of FIG. 20, if the mounting screws are screwed onto the construction surface through the mounting holes 50, the units A and B can be attached to the construction surface at the same time as the units A and B are connected.

In the case of the joint box having the quick-linking structure as described above, if the coating is stripped for too long, there is a problem that the core wire is exposed to the outside. Therefore, in order to prevent this, two plate-like protective plates 53 having insulating properties shown in FIG. 23 are used, and the joint box 1 is sandwiched between the protective plates 53 as shown in FIG. It may be installed on the construction surface. The cable is shown at 60 and the core wire is shown at 61. It should be noted that each protection plate 53 is formed with a square ridge 53a and the joint box 1 can be positioned between the ridges 53a so that the mounting screw 54 can be easily tightened. Further, these insulating plates 53 have mounting holes 53 communicating with the mounting holes 50 of the joint box 1.
b is formed.

Although the basic unit A and the additional unit B are connected in the width direction in the above description, they are connected in the thickness direction (for example, the direction orthogonal to the paper surface of FIG. 1A). It goes without saying that it is good.

[0037]

As described above, the invention of claim 1 has a connecting portion for a power source to which a power cable is connected, and a plurality of connecting portions for feeding wiring for branching and outputting a plurality of power source lines inside.
A basic unit including a switch and a plurality of connecting portions for the switch that respectively connect a load that is turned on and off by controlling power supply through the switch, and at least for the power source of the basic unit Connection unit and multiple connecting units for switches and loads, and is configured with an additional unit that can be connected to the basic unit according to the increase in the load and the switch for wiring, and as necessary, the additional unit Can be added, and the advantage of the basic unit that wiring can be done easily and accurately can be maintained as it is, eliminating the waste of providing an extra circuit in the basic unit, and suppressing unnecessary increase in cost. You can

As described in claim 2, the switch is
When a commercial power source is used as a power source to turn the load on and off, an additional unit that directly connects the output of the switch and the load is used, and the power source for the switch is the feed wiring of the basic unit. If the power is supplied from the connection part for the power supply, the switch operating with the commercial power supply as the power supply can be wired in the joint box.

As described in claim 3, when the load is operated by a single-phase three-wire type power supply, the connecting portion for connecting the switch is connected to the load connecting terminal of the connecting portion to which the load is connected. With a three-terminal structure having a terminal directly connected to one end of the power supply and a terminal to which the voltage side pole and the ground side pole of the power supply line are respectively connected, the switch operating with the commercial power supply as the power supply is the same as the normal switch. Can be connected to the connection part of.

As described in claim 4, the connecting portion between the basic unit and the additional unit is provided with an engaging portion that engages with each other to prevent disengagement, and is added to the basic unit at the time of mounting on a construction surface, for example. The unit does not come off and can be installed easily. As described in claim 5, when there is an unused electric wire connecting portion in the connecting portion, a closing member for closing the electric wire connecting portion is provided to prevent dust and dirt from entering the inside and to prevent an error. Wiring can be prevented.

In a wiring device mounted on a construction surface such as a ceiling with a mounting screw as described in claim 6, fixing the connecting portion by fixing the construction surface of the mounting screw simplifies the structure. Can be converted. As described in claim 7, when the structure of the connecting portion of the cable is a quick-connect terminal structure, if a protective device for insulating the cable connected to the connecting portion and its peripheral portion is provided, the coating is stripped for a long time. It is possible to secure safety when it passes.

[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 of a method of connecting another additional unit and a basic unit.

FIG. 5 is an explanatory diagram showing a connection state between a switch and a thermal sensation automatic switch.

FIG. 6 is an explanatory diagram of a terminal structure in the case where the switch and the thermal sensation automatic switch can be connected to any of the connecting portions.

FIG. 7 is an explanatory diagram showing a plurality of methods in which a switch and a thermal sensation automatic switch can be connected to any of the connection portions.

FIG. 8A to FIG. 8D are plan views of a basic unit showing in detail a disengagement prevention structure between units, and a side view thereof.
It is the top view of an additional unit, and the side view.

FIG. 9 is a plan view showing a connection state of both units, showing a detachment prevention structure between the units in detail.

10 (a) to 10 (d) are a front view, a side view, a plan view and a bottom view of a conductive plate forming the internal circuit of the same.

11A to 11D are a front view, a side view, a plan view and a bottom view of another conductive plate constituting the internal circuit of the above.

12A to 12D are a front view, a side view, a plan view and a bottom view of still another conductive plate constituting the internal circuit of the above.

13A and 13B are plan views of still another conductive plate used for each unit.

14A and 14B are a plan view and a side view of a conductive plate that connects the conductive plates.

15A and 15B are a plan view and a side view of another conductive plate connecting the conductive plates.

16A to 16C are a plan view, a side view, and a front view of still another conductive plate connecting the conductive plates.

FIG. 17 is a plan view showing a conductive plate block that constitutes an internal circuit by using the above.

FIG. 18 is a perspective view showing a structure for closing an unused wire insertion hole.

19 (a) and 19 (b) are a plan view and a sectional view of a closing member.

FIG. 20 is a perspective view showing another connection structure of each unit.

21 (a) to (d) are a plan view of a basic unit including another connection structure for each of the other units, a side view thereof, a plan view of an additional unit, and a side view thereof.

FIG. 22 is an explanatory diagram of a connecting method of the above.

FIG. 23 is a perspective view showing a safety measure method when a cable has a long coating.

FIG. 24 is a side view showing a mounting state in the above.

FIG. 25 is an explanatory diagram showing an indoor wiring method.

[Explanation of symbols]

 A, A'base unit B, B'additional unit S switch S'heat feeling automatic switch L load 2a to 2f connection part 21 connection groove 22 connection convex part 23a, 23b recess 24a, 24b ridge 40 wire insertion hole 43 blockage Member 53 Protective plate

Claims (7)

[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. A basic unit having a plurality of switch and load connecting portions for respectively connecting a load to be turned on and off, and a plurality of at least the power source connecting portion of the basic unit, a plurality of switches and a plurality of loads. A wiring device comprising a connection unit and a switch for wiring, and an additional unit that can be connected to a basic unit according to an increase in load. 2. When the switch operates by using a commercial power supply as a power source to turn on and off a load, an additional unit that directly connects the output of the switch and the load is used. 2. The wiring device according to claim 1, further comprising: a power supply for supplying power from a connection portion for feed wiring of the basic unit. 3. A connecting part for connecting a switch when the load is a single-phase three-wire type power supply.
It has a three-terminal structure including a terminal directly connected to one end of a load connection terminal of a connection part to which a load is connected, and a terminal to which a voltage side pole and a ground side pole of a power supply line are respectively connected. The wiring device according to claim 1. 4. The wiring device according to claim 1, wherein the connecting portion between the basic unit and the additional unit is provided with an engaging portion that engages with each other to prevent disengagement. 5. The wiring device according to claim 1, further comprising a closing member for closing the electric wire connecting portion when the electric connecting portion has an unused electric wire connecting portion. 6. A wiring device which is attached to a construction surface such as a ceiling by being screwed with a mounting screw, wherein the connecting portion is fixed by fixing the construction surface of the mounting screw. Wiring device. 7. When the structure of the connecting portion of the cable is a quick-connecting terminal structure, it is provided with a protection device for insulating the cable connected to the connecting portion and the peripheral portion thereof. The wiring device described.