JPH10321305A - Wiring device for electric equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring device for an electric equipment which can previously avoid inconvenience caused when a grounded circuit to be arranged in a power source line is not used by connecting a prescribed terminal of an equipment side coupler to an equipment wall surface, and grounding a terminal of a power source side coupler corresponding to the terminal. SOLUTION: A coupler 4 of a power source line 3 is connected to a coupler 12 of an electric equipment 1, and a power supply circuit to the electric equipment 1 is formed thereby. A fixed terminal 7 of a grounding conductor 6 fastened to the power source line 3 is fixed to a wall surface 1A of the electric equipment 1 by a screw, and the electric equipment 1 is grounded. A coupler 9 of a power source line 8 is connected to the coupler 12 of an electric equipment 2, and a power supply circuit to the electric equipment 2 is formed. Since a grounding conductor 11 is connected to a wall surface 2A of the electric equipment 2 through terminals 9A and 12A by the connection of the coupler 9 and the coupler 12, the electric equipment 2 is grounded simultaneously with the connection of the mutual couplers 9 and 12. Therefore, a grounding conductor 6A is obviated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring device for supplying power to electric equipment.

[0002]

2. Description of the Related Art Conventionally, in this type of showcase, for example, Japanese Patent Laid-Open No. 6-82154 (F25D29)
/ 00), a coupler attached to an end of a lead wire from an electric device provided on the main body and a coupler attached to an end of a power supply line (harness) connected to a power supply are installed. By connecting in the field,
It is configured to form a power supply circuit.

A ground wire (earth wire) is also bound to the power supply line by a binding band, and a fixed terminal attached to an end of the ground wire is fixed to a wall of an electric device of a showcase during connection of the coupler. As a result, the electrical equipment in the showcase was grounded.

[0004]

Incidentally, in such a showcase, there is a case where another electric device is mounted as an option. Therefore, the power line is provided with a spare power line for the optional electric device. The ground wire is also tied. Therefore, when such optional equipment is not mounted, the spare ground wire is left in a space where various charged parts are present in the showcase.

[0005] For this reason, the fixed terminal at the end of the spare ground wire comes into contact with the charged portion, causing a problem of causing electric leakage, and improvement has been demanded.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem, and is intended to provide an electric device which can avoid inconvenience caused when a ground circuit provided on a power supply line is not used. A wiring device is provided.

[0007]

According to a first aspect of the present invention, there is provided a wiring device for an electric device, comprising: a device-side coupler provided on the device side;
In a power supply circuit formed by connection with a power supply side coupler attached to an end of a power supply line, a predetermined terminal of the device side coupler is connected to a device wall surface, and a terminal of the power supply side coupler corresponding to the terminal is connected. Is grounded.

According to the first aspect of the present invention, the predetermined terminal of the device-side coupler provided on the electric device side is connected to the device wall surface, and the terminal of the power supply-side coupler corresponding to the terminal is grounded. In addition, when the power supply line is not used, it is possible to prevent the occurrence of the electric leakage due to the fixed terminal at the tip of the ground line constituting the ground circuit coming into contact with the charging part as in the related art.

In particular, since a grounding circuit can be formed by connecting the couplers, the wiring operation itself is extremely easy to understand.

According to a second aspect of the present invention, there is provided a wiring device for electrical equipment,
In the device forming the power supply circuit by connecting the device-side coupler provided on the device side and the power-supply-side coupler attached to the end of the power supply line, having a fixed terminal attachable to the device wall at the end, With a ground wire bound to the power line,
The fixed terminal is covered with a detachable insulating material.

According to the second aspect of the present invention, the fixed terminal of the ground wire which has a fixed terminal attachable to the wall surface of the electric device at the end and is bound to the power supply line is covered with a detachable insulating material. As a result, when the power supply line is not used, the leakage caused when the fixed terminal at the end of the ground line forming the ground circuit comes into contact with the charged part as in the related art when the power supply line is not used can be reliably eliminated by the insulating material. Becomes

In particular, since the insulating material is detachable, when it becomes necessary to attach the fixed terminal to the equipment wall, the fixed terminal can be easily removed and the ground wire can be used, so that there is no trouble in wiring work. Things.

According to a third aspect of the present invention, there is provided a wiring device for electrical equipment,
An electric device that forms a power supply circuit by connecting a device-side coupler provided on the device side and a power-supply-side coupler attached to an end of a power supply line has a fixed terminal that can be attached to the device wall at an end. And a ground wire bound to the power supply line, and the fixed terminal and the power supply-side coupler are covered with a detachable insulating material.

According to the third aspect of the present invention, the fixed terminal which can be attached to the wall surface of the electrical equipment is provided at the end, and the fixed terminal of the ground wire bound to the power supply line and the power supply side coupler are detachably insulated. As the power line is not used, the insulation material surely eliminates the leakage that occurs when the fixed terminal at the tip of the ground wire that makes up the ground circuit contacts the live part when the power line is not used. It is possible to do.

In particular, since the power supply-side coupler is also covered at the same time, the inconvenience that only the unnecessary ground wire separates from the power supply-side coupler and becomes entangled with other wiring can be eliminated, and the insulating material is detachable. When it becomes necessary to use the power supply line, the power supply side coupler and the grounding line can be easily removed and used, so that there is no problem in wiring work.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an electric circuit diagram for explaining the wiring device of the present invention. The wiring device of the embodiment is for supplying power to an electric device 1 in a showcase (not shown), for example, and a broken line in the drawing indicates an electric device 2 that is optionally mounted in the showcase. Is shown. The electric device 2 may or may not be mounted, and is assumed to be mounted in the embodiment.

Reference numeral 3 denotes a power supply line (harness) for the electric device 1, and a three-terminal male coupler 4 (power supply side coupler) is attached to a tip of the power supply line. A ground wire (ground wire) 6 is also bound to the power supply line 3 by a binding band (not shown). The ground wire 6 is grounded, and a fixed terminal 7 made of a ring-shaped metal plate is attached to a tip of the ground wire. .

A power supply line 8 (harness) for the optional electric device 2 is similarly bound to the power supply line 4. A three-terminal male coupler 9 (power-supply coupler) is attached to the end of the power supply wire 8, and a grounded ground 9 constituting a part of the power supply wire 8 is connected to a central terminal 9 A of the coupler 9. Line 11 is connected.

On the other hand, the wall surfaces 1A, 2A of the electric devices 1 and 2
Are mounted with three-terminal female couplers 12, 12 (equipment-side couplers), respectively.
A is connected to wall surfaces 1A and 2A, respectively.

With the above configuration, when the showcase is installed in a store, the coupler 4 of the power line 3 is connected to the coupler 12 of the electric device 1, thereby forming a power supply circuit for the electric device 1. . Also, a ground wire 6 tied to the power line 3
Are fixed to the wall surface 1A of the electric device 1 by screws, whereby the electric device 1 is grounded.

The coupler 9 of the power supply line 8 is connected to the coupler 12 of the electric device 2 to form a power supply circuit for the electric device 2. Also, due to the connection between the couplers 9 and 12, the ground wire 11 is connected to the wall 2 of the electric device 2 via the terminals 9A and 12A.
Therefore, the electric device 2 is grounded at the same time when the couplers 9 and 12 are connected to each other (see FIG. 2; FIG. 2 shows a circuit of the electric device 2). Therefore, the ground wire for the electric device 2 (the broken line 6A in FIG. 1)
Is unnecessary).

On the other hand, when the electric equipment 2 is not mounted, the coupler 9 of the power supply line 8 is not used and is left in the showcase, but as described above, the ground line 6A and the fixed terminal at the tip thereof (Indicated by 7A) does not exist,
Leakage caused by contact with these charged parts is also prevented.

Next, FIG. 3 shows another configuration of the present invention. In addition, reference numeral 8 in FIG. 3 designates an optional power supply line, to which a coupler 9 is attached. In this case, a ground wire 6A for the electric device 2 shown by a broken line in FIG. The fixed terminal 7A is attached to the tip.

In this case, the fixed terminal 7A is covered with an insulating material 14 made of an insulating sheet material. The insulating material 14 is printed with a ground terminal or the like on the front surface, and a peelable adhesive is applied on the back surface, whereby the insulating material 14 removably covers the fixed terminal 7A.

When the optional electric device 2 is mounted, the insulating material 14 is peeled off from the fixed terminal 7A, and the fixed terminal 7A is screwed to the wall surface 2A. Thereby, the electric device 2 is grounded. On the other hand, when the electric device 2 is not used, if the insulating material 14 is left attached, it is possible to avoid the occurrence of electric leakage due to the fixed terminal 7A coming into contact with the charged part.

Next, FIG. 4 shows still another configuration of the present invention. In this case, the coupler 9 is simultaneously covered with the insulating material 14 together with the fixed terminal 7A of the ground line 6A of the power supply line 8. . According to such a configuration, in addition to the above, the ground line 6A
The inconvenience that only the coupler 9 separates from the coupler 9 and becomes entangled with other wiring can be eliminated.

Although the embodiment has been described by taking the electric equipment of a showcase as an example, the invention is not limited to this.
The present invention is effective for various electric appliances.

[0028]

As described in detail above, according to the first aspect of the present invention, the predetermined terminal of the device-side coupler provided on the electric device side is connected to the device wall surface, and the terminal of the power supply-side coupler corresponding to the terminal is connected. When the power supply line is not used, it is possible to prevent the occurrence of electric leakage due to the fixed terminal at the tip of the ground line constituting the ground circuit coming into contact with the charged part when the power line is not used. Become.

In particular, since a grounding circuit can be formed by connecting the couplers, the wiring operation itself is extremely easy to understand.

According to the second aspect of the present invention, the fixed terminal of the ground wire which has a fixed terminal attachable to the wall surface of the electric device at the end and is bound to the power supply line is covered with a detachable insulating material. As a result, when the power supply line is not used, the leakage caused when the fixed terminal at the end of the ground line forming the ground circuit comes into contact with the charged part as in the related art when the power supply line is not used can be reliably eliminated by the insulating material. Becomes

In particular, since the insulating material is detachable, if it becomes necessary to attach the fixed terminal to the equipment wall, it can be easily removed and the ground wire can be used, so that there is no trouble in wiring work. Things.

According to the third aspect of the present invention, the fixed terminal which can be attached to the wall surface of the electric equipment is provided at the end, and the fixed terminal of the ground wire bound to the power line and the power supply side coupler are detachably insulated. As the power line is not used, the insulation material surely eliminates the leakage that occurs when the fixed terminal at the tip of the ground wire that makes up the ground circuit contacts the live part when the power line is not used. It is possible to do.

In particular, since the power supply-side coupler is also covered at the same time, the inconvenience that only unnecessary ground lines are separated from the power-supply-side coupler and become entangled with other wiring can be eliminated, and the insulating material is detachable. When it becomes necessary to use the power supply line, the power supply side coupler and the grounding line can be easily removed and used, so that there is no problem in wiring work.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram of a wiring device for explaining the present invention.

FIG. 2 is an electric circuit diagram of an optional electric device part of FIG. 1;

FIG. 3 is an electric circuit diagram of an optional electric device part of a wiring device explaining another embodiment of the present invention.

FIG. 4 is an electric circuit diagram of an optional electric device part of a wiring device illustrating still another embodiment of the present invention.

[Explanation of symbols]

 1, 2 Electrical equipment 3, 8 Power supply wire 4, 9 Coupler (power supply side coupler) 6, 6A Ground wire 7, 7A Fixed terminal 12 Coupler (device side coupler) 14 Insulation material

Claims (3)

[Claims] 1. A power supply circuit formed by connecting a device-side coupler provided on a device side and a power-side coupler attached to an end of a power supply line, wherein a predetermined terminal of the device-side coupler is A wiring device for an electrical device, wherein the wiring device is connected to a device wall, and a terminal of the power supply-side coupler corresponding to the terminal is grounded. 2. A power supply circuit formed by connecting a device-side coupler provided on a device side and a power-supply-side coupler attached to an end of a power supply line, wherein a fixed terminal attachable to the device wall is provided. At the end,
A wiring device for electric equipment, comprising: a ground wire bound to the power supply wire; and the fixed terminal is covered with a detachable insulating material. 3. An electric device in which a power supply circuit is formed by connecting a device-side coupler provided on a device side and a power-supply coupler mounted on an end of a power supply line, wherein a fixed terminal attachable to the device wall surface. At the end,
A wiring device for electrical equipment, comprising: a ground wire bound to the power supply line, wherein the fixed terminal and the power supply-side coupler are covered with a detachable insulating material.