JP2007244113A - Junction box for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a junction box for automobile which can improve the manufacturability of a wire harness in spite of wire harness direct insertion structure. <P>SOLUTION: This junction box for automobile has at least one or more points of connector mounts, where unipolar connectors can be mounted, in the main body of its self, relating to a junction box for automobile which has such construction that power distribution is performed by metallic bus bars and cable direct insertion structure. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electric junction box for automobiles that performs power distribution by using a metal bus bar and a wire direct insertion structure.

  Conventionally, as a wiring medium for an electric junction box for automobiles, a bus bar obtained by punching a copper-based material and performing a bending process or the like has been mainly used (for example, see Patent Documents 1 to 4).

Patent Document 1 is composed of a narrow strip-shaped conductive plate material and a tab-shaped pressure contact terminal member that is assembled and fixed to the conductive plate material from an orthogonal direction, and the lengthwise direction through which the bus bar is inserted into the pressure contact terminal member. A bus bar with a tab that is attached to the inside of an electrical junction box provided with an insertion hole and a slit-like pressure contact portion that presses the bus bar continuously at the end of the insertion hole is disclosed.
Patent Document 2 discloses a mounting structure for a bus bar that is inserted into a housing portion of an electrical junction box. The bus bar is inserted between the opposing guide walls, the terminals are inserted into the through holes, and the protrusions of the engaging pieces are engaged with the through holes of the bus bar, so that the bus bar is pulled out into the accommodating portion. It is mounted in a stopped and held state.
Patent Document 3 discloses a multi-terminal for forming a branch circuit arranged in an electric junction box for automobiles, which is formed by punching a conductive metal plate, and includes a pressure contact blade for wire pressure welding. The common wire portion protrudes from the common substrate portion, the wire pressure contact portion provided, the substrate connection portion comprising a protruding portion having a tip pierced into the conductive path of the printed circuit board, and the terminal joint connection portion comprising a tab for fitting and connecting the terminals to each other. A multi-terminal provided and an electrical junction box including the same are disclosed.
Patent Document 4 is a multi-terminal for disposing an electric junction box for an automobile to constitute a branch circuit, which is formed by punching a conductive metal plate, and includes a pressure contact blade for wire pressure contact. A wire connection part, a board connection part consisting of a protrusion having a tip that pierces the conductive path of the printed circuit board, and a terminal fitting connection part consisting of a tab for fitting and connecting the terminals to each other are projected from the common board part. A multi-terminal and an electric junction box having the same are disclosed.
JP-A-8-251762 JP-A-10-336851 JP-A-10-224950 JP 2000-224737 A

As shown in FIG. 8, a conventional automobile electrical junction box is a power source having a structure in which a conductive metal plate such as a copper plate is punched with a press and a metal bus bar made by bending or the like and an electric wire is directly inserted into the main body. Distribution was in progress. In FIG. 8, reference numeral 60 denotes an electric junction box for automobiles, 61 denotes an electric junction box body for automobiles, and 62 denotes an electric wire.
In the conventional electric junction box 60 for automobiles shown in FIG. 8, the side where the electric wire 62 is inserted into the electric junction box main body 61 for automobiles must be in a state in which the terminals are bare as shown by symbol X in the figure. Therefore, there exists a problem that the manufacturing process of a wire harness will be limited.

  This invention is made | formed in view of the said situation, and it aims at provision of the electrical junction box for motor vehicles which can improve the manufacturability of a wire harness, although it is a wire harness direct insertion structure.

  In order to achieve the above object, the present invention provides at least one or more connectors that can be mounted with a single-pole connector in an automobile electrical junction box having a structure in which power is distributed by a metal bus bar and an electric wire direct insertion structure. An electric junction box for automobiles is provided, characterized in that the junction box body has a portion.

  The connector housing of the present invention preferably has at least one locking mechanism to the electrical junction box body.

  The electric junction box for automobiles of the present invention has a structure in which the junction box body has at least one or more connector mounting portions to which a single-pole connector can be mounted, so that the electric wire to be connected to the connector mounting portion is terminated. By mounting the connector, it is possible to improve the manufacturability of the wire harness while having a wire harness direct insertion structure.

Hereinafter, an embodiment of an electric junction box for automobiles of the present invention will be described with reference to the drawings.
1-5 is a figure which shows 1st Embodiment of the electrical junction box for motor vehicles of this invention, Fig.1 (a) is a top view of the junction box main body 1 of the electrical junction box for motor vehicles, (b) is FIG. 2A is a side view of the connection box body 1, and FIG. 2B is a perspective view of the connection box body 1 on the (T) side. FIG. 3 shows a connector housing 10 of a connector mounted on the junction box body 1, FIG. 3 (a) is a front view, (b) is a side view, (c) is a plan view, (d) is a bottom view, e) is a perspective view. 4A and 4B show a connector housing 20 of another connector to be attached to the junction box main body 1. FIG. 4A is a front view, FIG. 4B is a side view, FIG. 4C is a plan view, and FIG. It is. FIGS. 5A and 5B show a connector housing 30 of another connector to be mounted on the junction box body 1. FIG. 5A is a front view, FIG. 5B is a side view, FIG. 5C is a plan view, and FIG. FIG.

  The electrical connection box for automobiles of this embodiment is provided with connector mounting portions 2, 3, and 4 on the surface indicated by the symbol (T) in FIGS. 1 and 2 and capable of mounting a plurality of types of connectors, on the opposite side. 1 (surface indicated by reference sign (S) in FIGS. 1 and 2) and a connection box main body 1 in which a bus bar 5 made of a conductive metal plate such as a punched copper plate is mounted, and each connector mounting portion of the connection box main body 1 It is comprised from the connector which is not shown in figure attached to 2,3,4.

  In the illustration of this embodiment, the connector housing 10 shown in FIG. 3 can be attached to a plurality of connector mounting portions indicated by reference numeral 2 in FIG. 1A, and reference numeral 3 in FIG. The connector housing 20 shown in FIG. 4 can be attached to the plurality of connector attachment portions shown in FIG. 1, and the connector housing 30 shown in FIG. 5 is attached to the plurality of connector attachment portions indicated by reference numeral 4 in FIG. It can be installed. The number, type, combination, and the like of the connector mounting portions 2, 3, 4 are not limited to this example, and can be appropriately selected according to the circuit design of the automobile electrical junction box.

  A connector housing 10 shown in FIG. 3 has a hollow rectangular tube shape in which a tip portion attached to the connector attachment portion 2 has a rectangular shape in plan view, and a step portion 11 is provided at a central portion of the trunk portion. The rear end side is slightly narrower. In this connector housing 10, a bare wire portion at the tip of an electric wire (not shown) inserted from the bottom surface side is pressed into a synthetic resin main body, and the electric wire and the inside of the connection box main body 1 are attached to the connector mounting portion 2. The terminal part which consists of an electroconductive metal plate which electrically connects with this circuit is provided.

  The connector housing 20 shown in FIG. 4 has a hollow rectangular tube shape in which a tip portion attached to the connector attachment portion 3 has a rectangular shape in plan view, and is thinner than the connector housing 10 shown in FIG. In the connector housing 20, a bare wire portion at the tip of a wire (not shown) inserted from the bottom side is pressed into a synthetic resin main body, and the electric wire and the inside of the connection box main body 1 are attached to the connector mounting portion 3. The terminal part which consists of an electroconductive metal plate which electrically connects with this circuit is provided.

  The connector housing 30 shown in FIG. 5 has a hollow rectangular tube shape in which the front end portion attached to the connector attachment portion 4 has a rectangular shape in plan view, and a plate-like portion 31 is formed from the center to the rear end side. In this connector housing 30, a bare wire portion at the tip of an electric wire (not shown) inserted from the bottom side is pressed into a synthetic resin main body, and the electric wire and the inside of the connection box main body 1 are attached to the connector mounting portion 4. The terminal part which consists of an electroconductive metal plate which electrically connects with this circuit is provided.

  The electrical connection box for automobiles of the present embodiment has a configuration in which the connection box main body 1 has a plurality of connector mounting portions 2, 3, and 4 to which single-pole connectors can be mounted. By attaching the connector terminated to the electric wire to be connected to 4, the wire harness manufacturability can be improved while the wire harness is directly inserted.

FIG. 6 is a view showing a second embodiment of the electric junction box for automobiles of the present invention.
The electrical connection box for automobiles of this embodiment is provided with a locking claw 41 (locking mechanism) on the side surface of the connector 40 and engages with the locking claw 41 on the inner wall of the connector mounting portion 43 of the connection box main body 42. A locking step 44 is provided, and the connector 40 is press-fitted into the connector mounting portion 43 (in FIG. 6B, press-fitting from the lower side to the upper side in the drawing), whereby the locking claw 41 is locked. The connector 40 is provided with a structure that locks the connector 40 so as not to be pulled out (so-called “fitting”). Note that the connector 40 in FIG. 6 is shown with the connected wires omitted.

  The electrical junction box for automobiles according to the present embodiment has the effect of improving the productivity of the wire harness while having the wire harness direct insertion structure, as in the first embodiment described above. Since the mounting structure of the portion 43 and the connector 40 is a lock structure by fitting and fitting, the connector 40 mounted on the connector mounting portion 43 can be prevented from coming off.

FIG. 7 is a view showing a third embodiment of the electrical junction box for automobiles of the present invention.
The electrical connection box for automobiles of the present embodiment is provided with an elastically deformable lock lever 51 (locking mechanism) having a locking claw 52 on the side surface of the connector 50, and a hole in the connector mounting portion 54 of the connection box main body 53. A locking step portion 55 that engages with the locking claw 52 is provided on the inner wall, and the connector 50 is press-fitted into the connector mounting portion 54, thereby providing a lock structure that detachably presses and holds the connector 50. Yes. Note that the connector 50 in FIG. 7 is shown with the connected wires omitted.

  In the lock structure shown in FIG. 7, when the connector 50 is press-fitted into the hole of the connector mounting portion 54 (in FIG. 7B, from the lower side to the upper side in the drawing), the lock lever 51 is connected to the connector 50 side. The latching claw 52 reaches the latching step portion 55 and engages, and the connector 50 is pressed to the opposite side by the elastic force of the lock lever 51, so that the connector 50 is The connector mounting portion 54 can be stably held at a predetermined depth. On the other hand, when the connector 50 attached to the connector attachment portion 54 is removed, the connector 50 can be simply removed by pushing and bending the lock lever 51 toward the connector 50 with an appropriate tool and releasing the engagement of the locking claw 52. Can be removed.

  The electrical junction box for automobiles according to the present embodiment has the effect of improving the productivity of the wire harness while having the wire harness direct insertion structure, as in the first embodiment described above. Since the mounting structure of the portion 54 and the connector 50 is a lock structure using an elastically deformable lock lever 51, the connector 50 mounted on the connector mounting portion 54 can be prevented from being detached and can be easily removed for convenience. Is expensive.

1st Embodiment of the electrical junction box for motor vehicles of this invention is shown, (a) is a top view of a junction box main body, (b) is a side view. The same junction box main body as FIG. 1 is shown, (a) is a (S) surface side perspective view, (b) is a (T) surface side perspective view. The connector housing of the connector with which the connection box main body shown in FIG. 1 is mounted | worn is shown, (a) is a front view, (b) is a side view, (c) is a top view, (d) is a bottom view, (e) is a bottom view. It is a perspective view. FIG. 4 shows a connector housing of another connector to be mounted on the junction box body shown in FIG. 1, FIG. 4 (a) is a front view, (b) is a side view, (c) is a plan view, and (d) is a perspective view. is there. The connector housing of another connector with which the junction box main body shown in FIG. 1 is mounted | worn is shown, (a) is a front view, (b) is a side view, (c) is a top view, (d) is a perspective view. . 2nd Embodiment of the electrical-connection box for motor vehicles of this invention is shown, (a) is a perspective view of a connector, (b) is principal part sectional drawing of the electrical-connection box for motor vehicles. 3rd Embodiment of the electrical-connection box for motor vehicles of this invention is shown, (a) is a perspective view of a connector, (b) is principal part sectional drawing of the electrical-connection box for motor vehicles. It is a perspective view which shows an example of the conventional electrical junction box for motor vehicles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 42, 53 ... Connection box main body, 2, 3, 4, 43, 54 ... Connector mounting part, 5 ... Bus bar, 10, 20, 30 ... Connector housing, 11 ... Step part, 31 ... Plate-like part, 40, 50 ... Connector, 41, 52 ... Locking claw, 44, 55 ... Locking step, 51 ... Lock lever.

Claims (2)

In an electrical junction box for automobiles having a structure for distributing power by a metal bus bar and an electric wire direct insertion structure,
An electrical junction box for automobiles, comprising a junction box main body having at least one or more connector mounting portions to which a single-pole connector can be mounted. The said connector has the latching mechanism to the electrical junction box main body of at least 1 or more places, The electrical junction box for motor vehicles of Claim 1 characterized by the above-mentioned.

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