JPH0649066Y2 - Branch connection box - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a branch connection box which is provided at an intermediate portion of a wire harness and connects electric wires in the wire harness to each other to collectively form a branch circuit. More specifically, the present invention relates to a branch connection box using pressure contact terminals.

"Prior Art" Japanese Utility Model Publication Nos. 61-36965 and 61-36966 disclose branch connection boxes using wires for circuits.

In addition, Japanese Patent Application No. 62-154066 (Japanese Patent Application Laid-Open No. 63-3180) by the inventors
No. 80) and Japanese Patent Application No. 62-149832 (Japanese Patent Application Laid-Open No. 63-
In the specification of Japanese Laid-Open Patent Publication No. 313475), the wire pressure contact portion and the connector connecting portion are present in the same terminal tab at positions where planes including them are parallel to each other and are unevenly distributed in the length or width direction of the wire. There is disclosed a high-density connection box using terminals, which is characterized by the above structure.

The above conventional example is usually the upper case 1.
A stranded electric wire having an insulating coating forming a circuit is sandwiched between the lower case 4 and the lower case 4, and the conductors of the electric wire are interconnected via a pressure contact terminal. Also, the twisted copper wire used as the conductor is
The structure is such that it enters into the slot 7 of the pressure contact terminal, the coating is cut, and the stranded wire is gripped by the slot of the pressure contact terminal and electrically connected to the pressure contact terminal.

[Problems to be Solved by the Invention] When the twisted electric wire 3 having the above-described conventional structure is held by the press contact terminal 2, the twist of the electric wire is disturbed, and stable contact between the press contact terminal 2 and the electric wire 3 can be obtained. In addition, it is not possible, and when wiring a twisted wire in a branch connection box, when bending in the vertical direction or the horizontal direction, it is not possible to keep a stable shape because it is a twisted wire, so it has conduction performance. Wiring posture becomes unstable. The presence of the bent wiring causes a problem that the branch connection box becomes large. On the other hand, for wire harnesses used for automobile wiring, there is a strong demand for the downsizing of the entire system, including the branch connection box, to be "smaller than one".

The present invention solves the above conventional problems and provides a branch connection box that meets the demand for miniaturization in the field.

"Problems for solving problems" The present invention, which achieves the above objects, has an "insulated wire and a pressure contact terminal with a slot in an upper case and a lower case that can be integrally assembled, and the number and position of the pressure contact terminals with a slot. Is set appropriately, the length of the insulation-coated wire is adjusted and wired to short-circuit the circuit arbitrarily to form a branch circuit in the case. A circuit wiring having a U-turn portion is formed by using a covered electric wire, and the U-turn portion is gathered along one side edge of the upper case and has a three-dimensional parallel portion in the vertical direction of the upper case. It is a three-dimensional wiring and has a structure in which an electric wire accommodation portion for accommodating the aggregated U-turn portion is provided at a side edge portion of the upper case. "

[Operation] According to the branch inheritance box of the present invention as described above, the single-core wire to be connected between the upper case and the lower case is sandwiched, and the wire group is interconnected via the pressure contact terminal. Since the conductor is rich in rigidity and mechanical strength, it is possible to obtain stable conductive contact between the pressure contact terminal and the wire, and the wire shape in the part where the wire bends vertically and laterally is stable. The shape is good and stable.

Further, in the branch connection box of the present invention, the U-turn portion of the single-core wire wiring is aggregated and three-dimensionally wired along one side edge of the upper case, and the aggregated three-dimensional wiring portion is the wire housing portion of the side edge of the upper case. Since it is housed in a single core U-turn wiring that requires a large bending radius because the conductor has high rigidity,
Due to the three-dimensional integration, the required space is kept to a minimum, and the three-dimensional integrated wiring is housed in the dead zone of the upper case, which is the U-turn part of the wiring that cannot set the pressure contact terminal. It can be made extremely compact and compact by utilizing the dead zone by suppressing the shaping.

[Examples] Hereinafter, examples will be described in detail.

1 to 4 showing an embodiment thereof, FIG. 1 shows an overall structure of a branch connection box of the present invention, and a single-core wire 3 to be connected between an upper case 1 and a lower case 4. And has a basic structure in which a group of electric wires 3 are interconnected via pressure contact terminals 2.

Then, as shown in FIG. 2, the electric wire 3 including the single core wire 5 and the electric wire coating 6 is inserted into the slot 7 of the press contact terminal 2, the coating 6 of the electric wire 3 is cut, and the single core wire 5 and the slot are formed. The wire 7 is brought into contact and conducted, and the electric wire 3 is gripped by the press contact terminal 2.

Then, the electric wire 3 is bent and wired as shown in FIG. 3 or is wired to the U-turn portion 10 as shown in FIG. 4, and the U-turn portion 10 is gathered along one side edge of the upper case 1 to form a three-dimensional structure. It is wired.

Specifically, the U-turn portion 10 is aggregated by forming a three-dimensional parallel portion 8 that is three-dimensionally parallel to the vertical direction of the upper case 1 on one side edge portion of the upper case 1. The case 1 has a structure in which one side edge portion is housed in an electric wire housing portion 9 which is bulged upward.

The above embodiment has the above-mentioned action, and the slot 7 of the press contact terminal 2 holds the single core wire 5 rich in rigidity and mechanical strength and conducts it, so that both perform electrical conduction in a good state. At the same time, the gripping force is excellent, and a good wiring conduction posture is stable. Since the U-turn portion 10 is integrated and three-dimensionally wired on one side edge of the upper case 1 and is accommodated in the wire accommodating portion 9 utilizing the dead zone of the upper case 1, there is no waste of the upper case 1. The branch junction box is miniaturized and made compact.

"Effects of the device" As described above, the branch connection box of the present invention has a stable and stable electric conduction state of electric wires and stable electrical performance. It has the effect of downsizing the junction box and meeting the technical requirements of the relevant field.

[Brief description of drawings]

1 is a perspective view showing the overall construction of a branch connection box according to an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which an electric wire is held by a pressure contact terminal. FIG. 3 is an arrangement of electric wires in the embodiment of FIG. Fig. 4 is a perspective view showing the shape. Fig. 4: Fig. 1 is a perspective view of the U-turn wiring part in the embodiment. Main symbols (1) ... upper case, (2) ... pressure contact terminal (3) ... electric wire, (4) …… Lower case (5) …… Single core wire, (6) …… Wire coating (7) …… Slot, (8) …… Side parallel part (9) …… Wire housing part, (10) …… U turn Department

Claims (1)

[Scope of utility model registration request] 1. An upper case and a lower case that can be integrally assembled have an insulation-coated electric wire and a press-connecting terminal with a slot, the number and position of the press-connecting terminal with a slot are appropriately set, and the length of the insulation-covered electric wire is adjusted to perform wiring. By doing so, in a branch connection box using a pressure contact terminal that forms a branch circuit in the case by short-circuiting arbitrarily in the circuit, a circuit wire having a U-turn portion is formed by using a single-core insulating covered electric wire, The U-turn portion is integrated along one side edge of the upper case, and is an integrated three-dimensional wiring having a three-dimensional parallel portion in the vertical direction of the upper case. A branch junction box characterized by a structure provided with an electric wire accommodation portion for accommodating a U-turn portion.