JP2560897Y2 - Branch unit - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention relates to a branch unit used for indoor wiring of a building, a condominium, and the like.

(Conventional technology) A conventional branch unit uses a structure in which wires connected in advance in a factory according to a wiring diagram are housed in an insulating case, epoxy resin or the like is injected and cured into the insulating case, and the connection part is insulated. At the construction site where the branching unit is installed (hereinafter simply abbreviated as “site”), the connecting portion is taken out of the insulating case or a new connecting portion made at the site is stored in the insulating case. That was impossible. Some of the equipment deployed indoors include:
Some of the equipment itself is already equipped with feeder wires for driving and wires for operation.
From the wires attached to the equipment and the multiple wire groups of the branch unit, select the relevant wires (usually, labels that indicate the destination are attached to the wires, so selection is extremely easy. Yes), but they were connected, but since this connection could not be accommodated in the insulating case of the branch unit, a separate joint box was newly procured and stored in it. Therefore, there is the uneconomical cost of having to procure a new joint box, the extra work of attaching the joint box to the ceiling or wall, and the inconvenience of managing and storing the joint box. The development of a branch unit that allows the connected connection part to be housed in the insulating case of the branch unit has been eagerly desired.

(Problems to be Solved by the Invention) This invention has been made to solve the problems described in the prior art, and has as its object to provide a branch unit that can store a newly connected connection part on site. Is what you do.

(Means for solving the problem) A partition or the like is provided in the insulating case of the conventional branch unit, an empty insulating case is also provided, and a predetermined insulation strength is provided for connecting the electric wires at the site, for example, a plug-in type. The connection part that is connected using a connector such as is stored in an empty insulating case attached.

(Function) The attached insulation case performs the same function as a new separate joint box that was conventionally used on the site, so at the site, a new joint box can be procured or the joint box can be mounted on the ceiling or wall. Installation work can be omitted. Naturally, the labor for managing and storing the joint box can be omitted.

(Embodiment) Drawings showing an example of the implementation of the present invention will be described. First, at a factory, according to a wiring diagram, a connected electric wire is housed in an insulating case, and epoxy resin or the like is used.
The opening of an empty insulating case 3 provided with a partition or the like in the insulating case of the branch unit formed by injecting and curing the insulating case and insulating the connection portion is covered with a curtain 2 made of a plastic sheet or the like. . The curtain 2 is for giving a caution so that, for example, when a fingertip touches it, it is not inserted into the interior any more. Therefore, it is structured such that electric wires can be freely inserted and removed through the curtain 2. . Reference numeral 4 denotes a connector having predetermined insulation strength and various electrical characteristics defined by laws and regulations, and the connection between the electric wires is performed by inserting or screwing, so that taping with a conventional insulating tape is unnecessary. It has a simple structure. Reference numeral 5 denotes a connection portion which is connected and insulated by the connector 4. At the time of implementation, for example, the power supply wire 6 of the branch unit and the power supply wire 7 attached to the equipment are connected by the connector 4 at the site, and the insulating portion 5 is stored in the empty insulating case 3 via the curtain 2. It is.

(Effect) This invention has the following effects because it is configured as described above.

(1) A new separate joint box, which was required in the past, is not required, so that the work of attaching the joint box to the ceiling or wall surface can be omitted.

(2) Insulation treatment by taping or the like, which is conventionally required, is not required.

(3) Work efficiency is improved, and labor for procurement and storage management of the joint box at the site can be omitted.

The industrial use value is remarkable.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention. 1: Opening of insulation case, 2: Curtain, 3: Insulation case, 4: Connector, 5: Connection, 6: Power cable of branch unit, 7: Power cable of equipment

Claims (1)

(57) [Scope of request for utility model registration] According to a wiring diagram, a connection unit of a pre-connected electric wire is housed in an insulating case and is subjected to insulation treatment with an epoxy resin or the like. An empty insulation case (3) provided with a curtain (2) is provided at the site, and a connection portion between a power supply wire (7) of equipment and a wire (6) of a branch unit connected on site by a connector (4). (5) A branch unit, wherein (5) is housed in an insulating case (3).