JP2806458B2 - Power supply circuit for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle power supply circuit connected to a vehicle battery.

[0002]

BACKGROUND ART FIG. 4 shows a first prior art example, to connect two wires of the starter cable b and the power take-out wire c to the plus electrode a ₁ battery a, fusible link power take-out wire c branch circuit of case d ₁ of block d is connected to the common terminal in the (not shown), the other ends of the fusible link e with connecting one end of each branch terminals to each fusible link e of the branch circuit body Is connected to an electric wire f forming a branch circuit.

[0003] Figure 5 shows a second conventional example, the battery connection terminal g provided with a starter cable terminals g ₁ in series is fixed to 'Case d _1' of fusible link block d, case d _{1 'in} , A plurality of fusible links e 'and connection wires f' are provided from the battery connection terminal g via a branch circuit. Note that d ₂ ′,
d ₃ ′ and d ₄ ′ are lids.

[0004]

In the first prior art, as shown in FIG. 6 (A), two wires, ie, a power take-out wire c and a starter cable b, must be extended from a battery a. In the second conventional example, as shown in FIG. 6 (B), the power take-out wire c can be omitted, but each wire f constituting the branch circuit becomes longer by that much. There is a disadvantage that waste is increased.

The present invention has been made in view of the above points, and is intended to overcome the problems of the prior art by connecting a fusible link block in the middle of a starter cable connected to a positive electrode of a battery. .

[0006]

According to the present invention, a starter connected to a battery is provided.
Separated from both ends of the cable / wire harness power line
A fusible cable is attached to the exposed conductor in the middle part
Connect the wire connection terminals of the
Power cable and wire harness power line
Extends almost straight along the surface of the link block case.
Allowed, through a plurality of fusible links than electric line connecting terminal connected to the electric wires of the plurality of branch circuits, the huge Bururi
With the ink block attached to a panel, etc.,
Bull link block is the starter cable and wire harness
A configuration that prevents the sag of the nest has been adopted.

[0007]

The fixing of the fusible link block to a panel or the like prevents the starter cable and the wire harness power supply line from sagging.

[0008]

1, a starter cable and a wire harness power supply line W are connected to a positive electrode 1 of a battery A,
The ground wire W ′ is connected to the negative electrode 2. The fusible link block B is connected between the starter cable and the wire harness power supply line W.

The fusible link block B comprises a case 3, an electric wire connection terminal 4, a branch circuit board 5, a plurality of branch circuit terminals 6, and a fusible link 7 (see FIG. 2). Wire connecting terminal 4 consists electrical contact plate portion 4b having a wire crimp portion 4a and the bolt insertion hole 4b _1, the wire crimp portion 4a of the starter cable and wire harness power line W
It is crimped and connected to the intermediate exposed conductor 8 in the extension direction separated from both ends . In addition, there is no obstacle on both sides of the electric wire connection terminal 4, and the power line W connected to the electric wire connection terminal 4 is
Along the surface of fusible link block B case 3
It has become possible space to extend linearly Te. Branch circuit board 5 is obtained by consecutively a plurality of branch terminal portions 5b of the substrate section 5a having a bolt hole 5a _1, each branch terminal portions 5b from the one side rear portion of the cutout recess 3a of the case 3 the It is advanced to each chamber 3b of the case 3 and overlaps the board portion 5a with the electric contact plate portion 4b of the electric wire connection terminal 4, and tightens the tightening bolt 9 from each of the bolt insertion holes 4b ₁ , 5a ₁ into the notch recess 3a.
The wire connection terminal 4 and the branch circuit board 5 are fixed to the case 3 in a state of being electrically connected by being screwed into a nut 10 embedded in the wall surface of. And in this state,
The starter cable / wire harness power supply line W is located in the cutout recess 3a, and the cover 11 is
Is provided on the case 3 by engaging with the locking projection 3c of the case. FIG. 3 shows an electric wire connection terminal 4 'in which the branch circuit board 5 is integrally provided, and a branch terminal 5b' is connected to the electric wire crimping portion 4a 'via a substrate 5a'.

In each chamber 3b of the case 3, a branch circuit terminal 6 is arranged in advance so as to face the branch terminal 5b of the branch circuit board 5, and a fusible link 7 is inserted into each chamber 3b. Then, it is connected to the branch terminal 5b and the branch circuit terminal 6. The branch circuit wire 6 is connected to the branch circuit terminal 6.
_{1, w} 2, _{w 3} ...... it is connected. The fusible link block B is fixed to a panel (not shown) or the like via the mounting portion 3d of the case 3, and in this state, the starter
To deter sagging Bull and wire harness power line.

[0011]

According to the present invention, as described above, the battery is connected.
Starter cable and wire harness power line
Exposed conductor in the middle part of the extension away from the end
To the fusible link block wire connection terminal.
And the starter cable and wire harness power line
Along the surface of the case of the fusible link block
Extending in a substantially straight line , connecting to the wires of a plurality of branch circuits through a plurality of fusible links from the wire connection terminal,
The fusible link block was attached to a panel etc.
The fusible link block is
The wire harness is used to prevent the wire harness from sagging, so that it is possible to reduce the waste of electric wires in the battery power take-out area and effectively use the narrow space in the engine room. The power supply line can be easily connected and fixed to the intermediate portion in the extension direction of the power supply line without particularly bending, and the power supply line can be prevented from sagging. There is an effect that it is not necessary to provide a falling prevention structure on the power supply line.

[Brief description of the drawings]

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

FIG. 2 is an exploded perspective view of a main part of the same.

FIG. 3 is a perspective view showing another embodiment of the electric wire connection terminal.

FIG. 4 is a perspective view showing a conventional example.

FIG. 5 is a perspective view showing another conventional example.

6A is an explanatory diagram of the structure of FIG. 4, and FIG. 6B is an explanatory diagram of the structure of FIG.

[Explanation of symbols]

Wire A battery B fusible link block W starter cable and wire harness power line 3 Case 4, 4 'the wire connecting terminal 7 fusible link 8 exposed conductors w _{1, w} 2, _{w 3} branch circuits

Claims (1)

(57) [Claims] 1. A starter cable connected to a battery
Extension direction separated from both ends of the wire harness power line
Fusible link block on exposed conductor in the middle of
And the starter cable.
And the wire harness power line to the fusible link block.
Extending along the surface of the cable case in a substantially straight line , and connecting to the wires of a plurality of branch circuits through the plurality of fusible links from the wire connection terminals.
With the hook attached to a panel, etc.,
Block for the starter cable and wire harness
A power supply circuit for a vehicle, wherein the power supply circuit is adapted to prevent a fall .