JP2549224Y2 - Wire joint box - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint box for electric wires used when performing indoor wiring work or the like.

[0002]

2. Description of the Related Art Conventionally, in the case of arranging work inside a ceiling or the like indoors, since the working space is narrow, it becomes difficult to peel off an insulator of a wire or connect a conductor, and an accident such as erroneous wiring or insulation failure occurs. May occur.

In order to facilitate work in such a narrow space, there is an electric wire joint box proposed in Japanese Utility Model Publication No. 58-46262.

The joint box proposed in this publication has a fixing cylinder 20 as shown in a perspective view of FIG.
Is provided around a circular or square substrate 21 provided with a notch. The side wall 22 has a cut groove 2 having a width substantially equal to the outer diameter of the electric wire in the wiring direction of the branched electric wire.
3 is provided in accordance with the number of branched wires,
When connecting the electric wires, as shown in an enlarged manner in FIG. 6B, the core wire 24 of the electric wire 28 is taken out, the conductor 25 of the core wire 24 is exposed, and the wire is crimped and connected with a crimping sleeve 26. The connection portion is covered with an insulating cap 27, and
2 inside. Then, as shown in FIG. 6A, each electric wire 28 is fixed in a certain direction by being inserted into the cut groove 23. Thereafter, in the same direction as the electric wire 28, an upper lid 30 having a hole 29 substantially equal to the outer diameter of the electric wire 28 on the side edge portion is covered, and synthetic resin is injected into the whole including the upper lid 30 and molded. By this molding, the synthetic resin 32 is filled from the groove 31 formed on the upper surface of the upper lid 30 to the inside of the side wall 22, and the electric wire 2 accommodated in the inside of the side wall 22 is filled.
8 are fixed.

[0005] The joint box thus molded is fixed to the building structure by using the screw holes 33 formed in the upper part of the cylinder 20.

[0006]

However, in the above-described conventional joint box, when the conductor 25 of the core wire 24 is crimped and stored in the side wall 22, the length of the exposed core wire 24 is reduced. If the length is long or the number of wires is large, the connection portion of the core wire 24 and the space occupied by the core wire 24 become large, so that they cannot be easily stored inside the side wall 22, and there is a problem that the work is troublesome.

[0007] Further, even if it can be accommodated, there is a problem that the core wires 24 may interfere with each other due to mutual contact, forcing an excessive force to act, and a connection failure of the connecting portion may occur.

An object of the present invention is to connect a plurality of electric wires at one place.
Next, the space occupied by the connection part of the core wire can be reduced,
Take a lot of extra room inside the into box and wire
Leave space between each other to easily store electric wires,
Proceed efficiently connection work, eliminating the possibility of poor connection occurring is that the attempt to improve the reliability.

[0009]

The joint box for an electric wire according to claim 1 of the present application is formed in a circular shape, a square shape, or the like.
A substrate made of an insulating material and one of the substrates
Endless conductive plate formed on the surface of
And a conductive plate divided into a plurality of blocks and formed in a band shape.
And a plurality of conductive plates provided insulated from each other.
A wall mounting column projecting upward from one side of the substrate
And how to wire the wires to be erected and connected to the peripheral edge of the board
And a side wall formed with a cut groove for fitting an electric wire in the direction
And one or more containers having the same shape as the substrate of the container
An upper plate having a through hole formed therein, and
A lid member having a wall surface joined to the end;
Insert the conductor of the core of the electric wire into the container and conduct the conductor of the core of the electric wire.
Connect the body to the conductive plate and fit each wire into the cut groove
After radially disposing and covering with the lid member, the lid member
Mold the inside of the container from above and connect the conductor and the conductive plate.
The connecting portion is fixed. Claim 2 of the present application
The joint box of the above-mentioned electric wire, multiple conductive plates,
Formed concentrically around the fixing post standing at the center of the substrate
And the outermost conductive plate is formed into an endless strip
It is composed of a conductive plate.

[0010]

According to the above construction, since the connection between the cores of the electric wires is performed by crimping, compression, welding , soldering, or the like using the conductive plate of the substrate, the space occupied by the connecting portions of the cores is reduced. As a result, the space inside the joint box is increased, and the electric wires can be easily stored.

[0011]

1 is a perspective view showing an embodiment of an electric wire joint box according to the present invention, and FIG. 2 is a plan view of a substrate on which a conductive plate is formed.

In FIG. 1 and FIG. 2, reference numerals 1a to 1d denote conductive plates formed on a circular substrate 2 so as to be insulated from each other and concentrically around a fixing column 3. Conductive plate 1 of this embodiment
In a to 1d, the outer conductive plates 1a and 1b are circular, while the inner conductive plates 1c and 1d are divided into four blocks in the circumferential direction. Each block of the conductive plates 1a to 1d and the conductive plates 1c and 1d is formed of a material having a conductivity equal to or higher than the conductivity of the electric wire, and furthermore, has an insulating performance between the conductive plates equal to or higher than the insulating performance of the electric wire. It is formed as follows.

A notch 4 is formed on the side edge of the substrate 2 and has a width substantially equal to the outer diameter of the electric wire in the direction of the electric wire to be branched and connected.
It is a side wall provided with.

When the electric wires are connected using the joint box having such a structure, as shown in FIGS. 3 and 4, the cores 10 to 17 of the electric wires 6 to 9 are exposed, and the cores 10 to 17 are further exposed. １７17 conductors are exposed in accordance with the position of the conductive plate to be connected, and the exposed conductors are crimped, compressed,
Connect by welding or soldering.

In FIG. 3, the core wire 10 of the electric wire 6 is connected to the conductive plate 1b, and the core wire 11 is connected to the outermost conductive plate 1a. The core wire 12 of the electric wire 7 is connected to the conductive plate 1b and the core wire 13
Are connected to the outermost conductive plate 1a. Furthermore, electric wire 8
The core wire 14 is connected to the first block 1c1 of the conductive plate 1c, and the core wire 15 is connected to the conductive plate 1b. The core 16 of the electric wire 9 is connected to the conductive plate 1a, and the core 17 is connected to the first block 1c1 of the conductive plate 1c.

After the core wires of the electric wires 6 to 9 are connected in this manner, the electric wires 6 to 9 are inserted and fixed in the cut grooves 5 having a width substantially equal to the outer diameter thereof. Thereafter, an upper lid similar to that shown in FIG. 5 is placed on the side wall 4, and the synthetic resin is injected and molded with the upper lid covered. By this molding, the inside of the side wall 4 is filled with the synthetic resin, and the connection portions of the electric wires 6 to 9 housed inside the side wall 4 are fixed.

The joint box molded in this way is fixed to the building structure using the screw holes formed in the upper part of the column 3.

Although the substrate 2 is formed in a circular shape,
Various shapes such as a square and an ellipse can be used.

[0019]

According to the first aspect of the present invention, a circular shape is provided.
.Substrates formed in a square shape and made of insulating material
And an endless strip formed on one surface of the substrate.
It is cut into several parts and cut into several blocks.
A structure in which the formed conductive plate is provided in an insulated state from each other.
Several conductive plates, projecting upward from one side of the substrate
Uprights at the peripheral end of the board, and
Notch to fit the electric wire in the wiring direction of the electric wire
A container having side walls; the same shape as the substrate of the container
An upper plate provided with one or more through holes, and an end of the upper plate;
And a wall having a wall standing upright and joined to an end of the side wall.
And a member; inserting the conductor of the core of the electric wire into the container,
Connecting the conductor of the core of the electric wire to the conductive plate,
It is fitted in the cut groove and radially arranged, and is covered with the lid member.
After that, the inside of the container is resin-molded from above the lid
Since the connection between the body and the conductive plate is fixed, the space occupied by the connection of the core wire can be reduced ,
Spatial room inside the joint box increases,
The wire was easily stored, Ki out to proceed efficiently connecting work, especially it is spatial room between the core wire between
As a result, there is no tension due to the contact between the core wires,
There is no possibility of causing a poor connection, this to improve the reliability
Can be. According to the invention of claim 2, a plurality of articles
Place the conductive plate around the fixing pillars
It is formed in the shape of a heart, and the outermost conductive plate is formed into an endless strip.
Since it is composed of a conductive plate that is formed,
Efficient because it can be connected in order to the board
The connection work can proceed, and the wires can be easily stored in the container.
Can be paid.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of a substrate which is a main part of the present invention.

FIG. 3 is a plan view showing a state where a core of an electric wire is connected to a substrate.

FIG. 4 is a perspective view showing a state in which a core of an electric wire is connected to a substrate.

FIG. 5 is a perspective view showing a configuration of a conventional joint box.

FIG. 6 is a perspective view showing a state where electric wires are connected to and housed in a conventional joint box.

[Explanation of symbols]

 1a conductive plate 1b conductive plate 1c conductive plate 1d conductive plate 2 substrate 3 support 4 side wall 5 cut groove 6 electric wire 7 electric wire 8 electric wire 9 electric wire 10 core wire 30 upper lid

Claims (2)

(57) [Scope of request for utility model registration] To 1. A is formed in a circular shape, square shape or the like insulating material
And a substrate formed on one side of the substrate
The conductive plate formed in the shape of a strip
Insulated from conductive strips divided into strips
A plurality of conductive plates provided in a state of being
A wall mounting column projecting upward from the surface of the
Standing at the peripheral end, fitting the wire in the wiring direction of the wire to be connected
A container having a side wall having a cut groove formed therein; and one or more penetrations having the same shape as the substrate of the container.
An upper plate provided with a hole, and standing upright at an end of the upper plate,
A lid member having a wall surface to be joined; and inserting a conductor of the core of the electric wire into the container,
Connect the conductor of the core wire to the conductive plate and cut each wire
After being fitted radially to the groove and covered with the lid member,
The inside of the container is resin-molded from above the lid member and the conductor and conductive
An electric wire joint box with a fixed connection to the board . Wherein said plural rows of conductive plates are concentrically formed Then co around the fixing column erected at the center of the substrate
A conductive plate formed by forming the outermost two conductive plates into an endless belt shape
The joint box for an electric wire according to claim 1, wherein: