JPH11187544A - Wiring connection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low cost wiring connection device which can secure wide effective surface area of an electrical junction box for mounting electric components, etc., as much as possible, and on which an electronic unit is mounted. SOLUTION: A wiring connection device 10 consists of an electrical junction box 11 to which a joint connector 17 is connected and on which an electronic unit 12 and electric components are mounted. The electronic unit 12 is detachably attached to a surface 11a of the electrical junction box 11 at a predetermined position. The joint connector 17 is attached to a rear 11b of the electrical junction box 11 at a position opposite to the electronic unit 12. At least the rear 11b side of the electrical junction box 11 is covered freely by a moisture-proof cover 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention completes the connection of various electronic units and electrical parts such as relays and fuses to automobiles and the like by using a wire harness connected to a joint connector. Wiring connection device for the.

[0002]

2. Description of the Related Art As this kind of wiring connection device, there is one disclosed in Japanese Patent Application Laid-Open No. 1-221876 shown in FIG. The wiring connection device 1 includes a substantially box-shaped protection cover 2,
An electric connection box 6 fastened and fixed to a nut (not shown) embedded in a receiving seat 3 in the protective cover 2 by a bolt 4 and attached to and connected to a multipolar connector 5 in the protective cover 2; A female connector 8 coupled and connected to a male connector 7 of a branch wire harness (not shown) that does not pass through
A cover case 9 for covering the electrical connection box 6 and the female connector 8 is provided.

[0003] A similar technique relating to the wiring connection device 1 is disclosed in Japanese Patent Laid-Open No. 2-285906.

[0004]

However, in the conventional wiring connection device 1, the female connector 8 connected to the male connector 7 of the branch wire harness that does not pass through the electric connection box 6 is connected to one side of the front surface of the protective cover 2. Occupying a large area, the size of the electric connection box 6 accommodated on the front side of the protective cover 2 is restricted, and the effective surface area for mounting electric components such as relays and fuses of the electric connection box 6 is widened. Attempting to do so increased the size of the protective cover 2 and increased the cost.

Accordingly, the present invention has been made to solve the above-mentioned problem, and has an electronic unit mounted thereon capable of taking as large an effective surface area as possible for mounting electric components of an electric junction box. An object is to provide an inexpensive wiring connection device.

[0006]

According to a first aspect of the present invention, there is provided a wiring connection device in which a joint connector is connected to an electric connection box and an electronic unit and an electric component are mounted and connected. The electronic connector can be freely mounted at a position, and the joint connector is mounted at a position facing the electronic unit on the back surface of the electric connection box.

In this wiring connection device, since the joint connector is installed on the back side of the electric connection box in which the electronic unit is mounted, a wide effective surface area for mounting the electric parts and the like of the electric connection box is secured.

According to a second aspect of the present invention, in the wiring connection device according to the first aspect, at least a back surface of the electric connection box is freely covered with a waterproof cover.

In this wiring connection device, since at least the back side of the electric connection box is covered with the waterproof cover, a non-waterproof joint connector is used, and the cost is reduced accordingly.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded side view showing a wiring connection device according to an embodiment of the present invention, FIG. 2 is a plan view of an electric connection box used in the wiring connection device, and FIG. It is a bottom view of a connection box.

As shown in FIG. 1 to FIG.
Reference numeral 0 denotes a relay box (electric connection box) 11 made of synthetic resin and having a flat L-shape, and a surface 11 a of the relay box 11.
A waterproof cover 20 made of a synthetic resin covering the side and having an open bottom surface, and a back surface 11b of the relay box 11
And a lower waterproof cover 30 which is made of synthetic resin and has an open upper surface.

As shown in FIG. 2, one end (left end in the figure) of the surface 11a of the relay box 11 is
2, a pair of female connectors (connectors) 12a on both sides of the bottom surface,
A pair of male connectors (connectors) 13, 13 for mounting an electronic unit to which 12a is mounted and connected are integrally formed. A plurality of relay mounting housings 14 on which relays (electric components) (not shown) are mounted are formed at substantially the center of the surface 11a of the relay box 11 so as to protrude integrally therewith. Further, on the other end side (right end side in the figure) of the surface 11a of the relay box 11, a plurality of fuse mounting housings 15 for mounting unillustrated fuses (electric parts) and unillustrated fusible links, and fusible link mounting. Each of the housings 16 is integrally formed.

As shown in FIG. 3, a pair of male connectors 13 for mounting an electronic unit also protrude from the rear surface 11b of the relay box 11, and the pair of male connectors 1
Except for 3 and 13, the rear surface 11b of the relay box 11 is a space. Also, the back surface 11 of the relay box 11
A housing 11c for mounting a joint connector is integrally formed between the pair of male connectors 13 and 13b in a substantially square cylindrical shape. In the housing 11c, a joint connector 17 for connecting to various devices of a vehicle (not shown) via wires such as a wire harness is fitted and fixed so as to abut against the back surface 11b of the relay box 11. .

As shown in FIGS. 1 to 3, mounting brackets 18a and 18b are integrally formed at opposing corners of the peripheral wall 11d of the relay box 11, and predetermined upper and lower portions of the peripheral wall 11d are provided. A plurality of locking claws (locking portions) 19a and 19b are integrally formed at positions. A rectangular frame-shaped engaging arm (engaging portion) 22 integrally formed at a predetermined position on the peripheral wall 21 of the upper waterproof cover 20 is engaged with and detachable from each of the upper engaging claws 19a. . Each of the lower engaging claws 19b is engaged with a rectangular frame-shaped engaging arm (engaging portion) 32 integrally formed at a predetermined position on the peripheral wall 31 of the lower waterproof cover 30, and is detachable. It is.

According to the wiring connection device 10 equipped with the electronic unit 12 of the embodiment described above, the pair of male connectors 13 at one end of the surface 11a of the relay box 11 are connected via the pair of female connectors 12a. Unit 12
The joint connector 17 can be easily attached to the dead space on the back side of the joint via the housing 11c for mounting the joint connector.
Further, a housing 11c for mounting a joint connector is provided at a location on the back surface 11b of the relay box 11 where water or the like is unlikely to penetrate.
By completely covering the 1b side with the lower waterproof cover 30, the joint connector 17 that is not waterproofed can be used.

The back surface 11b side of the relay box 11 on which the electronic unit 12 is mounted is a space except for a pair of male connectors 13 for mounting the electronic unit 12. Furthermore, since the electric wire is led out only in one direction below the joint connector 17, the electronic unit 12
If the joint connector 17 is mounted so that the joint connector 17 abuts on the back surface 11b side of the relay box 11 on which is mounted, the space can be effectively used.

As described above, the joint connector 17 is provided on the back side of the relay box 11 in which the electronic unit 12 is mounted.
Is installed, an effective surface area for mounting electric components such as a relay and a fuse (not shown) of the relay box 11 can be made as large as possible. In addition, since the lower surface of the relay box 11 is completely covered with the lower waterproof cover 30, the joint connector 1 that is not waterproofed is provided.
7 can be used, and the cost can be further reduced.

According to the above-described embodiment, the relay box has been described as an electric connection box used in the wiring connection device. However, the electric connection box is not limited to the relay box, but may be another electric connection box such as a junction box or a fuse box. Needless to say, the above embodiment can be applied to a box.

[0020]

As described above, according to the first aspect of the present invention, since the joint connector is installed on the back side of the electric connection box in which the electronic unit is mounted, the electric components of the electric connection box are mounted. Effective surface area as much as possible.

According to the second aspect of the present invention, since at least the back side of the electric connection box is covered with the waterproof cover, a non-waterproof joint connector can be used, and the cost can be reduced accordingly.

[Brief description of the drawings]

FIG. 1 is an exploded side view showing a wiring connection device according to an embodiment of the present invention.

FIG. 2 is a plan view of an electric connection box used in the wiring connection device.

FIG. 3 is a bottom view of an electric connection box used in the wiring connection device.

FIG. 4 is an exploded perspective view of a conventional wiring connection device.

[Explanation of symbols]

 Reference Signs List 10 Wiring connection device 11 Relay box (electric connection box) 11a Front surface 11b Back surface 12 Electronic unit 17 Joint connector 20, 30 Waterproof cover

Claims (2)

[Claims] 1. A wiring connection device in which a joint connector is connected to an electric connection box and an electronic unit and an electric component are mounted and connected, wherein the electronic unit can be mounted at a predetermined position on the surface of the electric connection box. A wiring connection device, wherein the joint connector is mounted on a rear surface of the electric connection box at a position facing the electronic unit. 2. The wiring connection device according to claim 1, wherein at least a back surface of the electric connection box is freely covered with a waterproof cover.