JP2001102043A - Structure for connecting wire to battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for connecting wire to a battery by which working property and safety can be improved when the wire is assembled to the battery and the shape of a battery body can be simplified to decrease cost. SOLUTION: This invention is a structure for connecting wire to a battery in which a wire terminal 6 fixed to an end of wire 5 provided with a bolting hole 4 is fixed by a bolt to a battery terminal 3 projected more than the upper face 2 of a body of a battery 1, wherein a protecting cap 10 is provided to cover the battery terminal 3 and wire terminal 6 such that lower end 9 of the protecting cap comes in close contact with the upper face of the body 2, and a bolt 7 with non-current carrying property is passed through both a bolting hole 11 provided on the protecting cap and the bolting hole 4 of the wire terminal 6 whereby the protecting cap 10 and wire terminal 6 are tightened together to the battery terminal 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire connection structure for a battery, in which an electric wire terminal fixed to an end of an electric wire is fixed to a battery terminal projecting from an upper surface of a main body of the battery with a bolt.

[0002]

2. Description of the Related Art Conventionally, as a structure in which electric wires are connected to positive and negative battery terminals of a battery mounted on a vehicle such as an automobile, an electric wire terminal fixed to an end of the electric wire is fixed to each battery terminal with a bolt. A cover with a cover is placed over the electric wire terminal and the battery terminal, the cover is opened, and the cover is fixed to a cover mounting portion or the like provided on the upper surface of the main body of the battery with a bolt different from the bolt. It has been known.

[0003]

However, the above prior art has the following problems. (1) The work of fixing the electric wire terminal to the battery terminal with bolts and the work of fixing the protective cover to the upper surface of the battery with other bolts must be performed twice, and the bolting work must be performed twice. The workability of assembling is poor. (2) When opening the cover of the protective cover and fixing the protective cover to the cover attaching portion with bolts, there is a possibility that the protective cover may touch an electric wire terminal (current-carrying portion) electrically connected to the battery terminal. (3) Since the cover mounting portion for fixing the protective cover to the upper surface of the battery body with bolts is provided on the upper surface of the battery body, the shape of the battery body becomes complicated, and the cost increases accordingly.

[0004] The present invention has been made in view of such conventional problems, and its problems are to improve the workability of assembling electric wires to a battery, to improve the safety at the time of assembling electric wires, and to improve the safety. An object of the present invention is to provide an electric wire connection structure to a battery in which the shape of the main body of the battery is simplified and cost is reduced.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to an electric wire having a bolt insertion hole in a battery terminal protruding from an upper surface of a battery main body and fixed to an end of the electric wire. In the electric wire connection structure for fixing a terminal with a bolt, a protective cap is provided to cover the battery terminal and the electric wire terminal such that a lower end portion thereof is in close contact with the upper surface of the main body, and a bolt insertion hole provided in the protective cap and the electric wire terminal are provided. Pass a non-conductive bolt through the bolt insertion hole,
The protective cap and the wire terminal are fastened together to the battery terminal with the bolt. According to such a configuration,
Since the protective cap and the wire terminal are fastened together to the battery terminal with a non-conductive bolt, only one bolt tightening operation is required, improving the workability of assembling the wire to the battery and energizing during the tightening work. There is no danger of touching a portion (for example, a wire terminal electrically connected to the battery terminal), and safety is improved. Further, since a cap attaching portion for fixing the protective cap to the upper surface of the battery with a bolt is not required, the shape of the battery main body is simplified, and the cost is reduced accordingly. In addition, since the lower end of the protective cap is pressed against the upper surface of the main body of the battery by the non-conductive bolt, dust resistance and waterproofness are improved. Furthermore, since the protective cap and the electric wire terminal are fastened together, the gap formed between the electric wire insertion side end of the protective cap and the electric wire can be sealed in advance with a mold or a packing, thereby improving the dust resistance and Waterproofness is further improved.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a structure for connecting an electric wire to a battery according to the present invention. 1 is an exploded perspective view showing an example of an embodiment of an electric wire connection structure to a battery, FIG. 2 is a longitudinal sectional view of FIG. 1, and FIG. 3 is a longitudinal sectional view showing a state where electric wires are connected to the battery. .

[0007] The electric wire connection structure to the battery according to the present embodiment has a structure in which a battery terminal 3 protruding from an upper surface 2 of a main body of a battery 1 mounted on a vehicle such as an automobile is provided with a bolt insertion hole 4.
And the electric wire terminal 6 fixed to the end of the electric wire 5 is fixed with a non-conductive bolt 7. Battery terminal 3
Is a cylindrical member having a screw hole 8 into which the bolt 7 is screwed, and the wire terminal 6 is placed on the upper surface thereof.

In this example, the battery terminal 3 is a battery positive terminal connected to a not-shown fusible link box or the like via an electric wire 5 serving as a power supply line. The battery negative terminal, which is connected to the ground via an electric wire (not shown), is not shown. In addition, the structure for connecting an electric wire to a battery according to the present embodiment is applied to the battery negative terminal in the same manner as the battery terminal 3. Therefore, in the following description, the electric wire connection structure to the battery terminal 3 which is the battery positive terminal will be described, and the description of the electric wire connection structure to the battery negative terminal will be omitted.

Further, the electric wire connection structure for a battery according to the present embodiment includes a protective cap 10 which covers the battery terminal 3 and the electric wire terminal 6 so that the lower end 9 is in close contact with the upper surface 2 of the main body. The protective cap 10 has a cylindrical bolt insertion hole 11 (see FIG. 2) through which the bolt 7 is inserted.
In the structure for connecting an electric wire to a battery according to the present embodiment, the non-conductive bolt 7 is passed through the bolt insertion hole 11 and the bolt insertion hole 4 of the electric wire terminal 6, and the bolt 7 is connected to the battery terminal 3.
The protective cap 10 and the electric wire terminal 6 are fastened to the battery terminal 3 together with the bolts 7 by screwing into the screw holes 8. Reference numeral 12 is a washer.

The protective cap 10 is formed of resin into a hollow box shape that covers the battery terminal 3 and the electric wire terminal 6.
A U-shaped opening having a semicircular arc portion at an upper portion thereof is provided at a wire insertion side end 13 which is one side wall of the protective cap 10 on the side where the wire 5 is inserted. 1
4 are formed.

In the structure for connecting an electric wire to a battery according to the above example, the electric wire terminal 6 is placed on the upper surface of the battery terminal 3,
The protective cap 10 is put on the battery terminal 3 and the electric wire terminal 6 such that the semicircular arc portion of the U-shaped opening 14 of the protective cap 10 is fitted to the outer periphery of the upper half of the electric wire 5,
The non-conductive bolt 7 is inserted through the bolt insertion hole 11 of the protective cap 10 and the bolt insertion hole 4 of the electric wire terminal 6 and screwed into the screw hole 8 of the battery terminal 3, and the bolt 7 is tightened. Thereby, the protection cap 10 and the wire terminal 6 are jointly fastened to the battery terminal 3 by the bolt 7 while the wire terminal 6 is electrically connected to the battery terminal 3.

As described above, according to the structure for connecting an electric wire to a battery according to the above-described example, the protective cap 10 and the electric wire terminal 6 are jointly fastened to the battery terminal 3 with the non-conductive bolt 7. Only one operation is required, and the workability of assembling the electric wire 5 to the battery 1 is improved.
There is no danger of touching the current-carrying part (wire terminal 6) during the tightening operation, and safety is improved.

Further, since a cap mounting portion for fixing the protective cap 10 to the upper surface 2 of the main body of the battery 1 with bolts is not required, the shape of the main body of the battery 1 is simplified, and the cost is reduced accordingly.

Further, since the lower end 9 of the protective cap 10 is pressed against the upper surface 2 of the main body of the battery 1 by the non-conductive bolt 7, the dustproof and waterproof properties are improved.

Further, since the protective cap 10 and the wire terminal 6 are fastened together, a gap 15 formed between the U-shaped opening 14 formed in the wire insertion side end 13 of the protective cap 10 and the wire 5 (see FIG. 3) can be sealed in advance with a mold or a packing, thereby further improving dustproofness and waterproofness.

[0016]

As described above, according to the first aspect of the present invention, the workability of assembling the electric wire to the battery is improved, and the safety at the time of the tightening work is improved. In addition, the shape of the main body of the battery is simplified, and the cost can be reduced accordingly. In addition, since the lower end of the protective cap is pressed against the upper surface of the main body of the battery by a non-conductive bolt, the dustproofness and the waterproofness are improved.
Further, a gap formed between the end of the protective cap on the wire insertion side and the wire can be sealed in advance with a mold or packing, thereby further improving dustproofness and waterproofness.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of an embodiment of an electric wire connection structure to a battery according to the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a longitudinal sectional view showing a state where an electric wire is connected to a battery.

[Explanation of symbols]

 1 ······ Battery 2 ····· Top surface of the main body 3 ····· Battery terminal 4 ···· Bolt insertion hole 5 ····· Electric wire 6 ····· Electric wire terminal 7 ··· ··································································································································· ・ ・ ・ ・ ・Wire insertion side end 14 U-shaped opening 15 Gap

Claims (1)

[Claims] 1. An electric wire connection structure for a battery, wherein a battery terminal protruding from an upper surface of a main body of a battery has a bolt insertion hole and an electric wire terminal fixed to an end of the electric wire is fixed by bolts. A terminal is provided with a protective cap for covering the lower end so as to be in close contact with the upper surface of the main body, and a non-conductive bolt is passed through a bolt insertion hole provided in the protection cap and a bolt insertion hole of the electric wire terminal. An electric wire connection structure for a battery, wherein a protective cap and an electric wire terminal are fastened together to the battery terminal.