JP2568767Y2 - Electrical connector for battery - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector for a battery for electrically connecting two electric wires to one electrode of a battery of an automobile or the like.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional battery electric connector similar to that disclosed in Japanese Utility Model Laid-Open No. 51-115482. In the figure, reference numeral 1 denotes a main body that is crimped to a battery electrode, and has an electrode insertion hole 3. The main body 1 has a pair of fastening pieces opposed to each other with the groove interposed therebetween, and is fastened to the battery electrode by fastening these to each other by the fastening means 5. A connecting plate 7 is formed integrally with the main body 1, and a stud bolt 9 is provided on the connecting plate 7. Each of the stud bolts 9 has an electric wire W at one end.
By fitting the terminal fittings 11 and 13 with the tightened W1 and W2 and tightening the nut 15, the two electric wires W
1. Connect W2 to the battery electrode.

FIG. 4 shows a conventional battery electrical connector similar to that disclosed in Japanese Utility Model Laid-Open No. 55-136164. In the figure, reference numeral 21 denotes a main body 21 which is formed into a U-shape so as to fit into a battery electrode. Body 21
Has a pair of fastening pieces 23 and 25,
To the battery electrode by fastening with the nut 29. The electric wire W1 is crimped to one of the clamping pieces 23. Reference numeral 31 denotes a separately prepared terminal strip. The terminal strip 31 has a tab terminal 3 for connecting another electric wire (not shown).
3 are provided. Then, the terminal strip 31 is fastened together with the fastening strips 23 and 25 with the bolt 27 and the nut 29 to connect a plurality of electric wires to the battery electrode.

[0004]

In the prior art shown in FIG. 3, the two terminal fittings 11 and 13 are connected to the main body 1 by tightening the nuts 15 on the stud bolts 9. When W2 is thick, the nut tightening operation is troublesome. In addition, since the terminal fittings 11 and 13 are electrically connected to the main body 1 by the contact pressure when the nut 15 is tightened, it is not suitable for flowing a large current.

Further, in the conventional example shown in FIG. 4, since electric wires are electrically connected via the tab terminals 33, they are also unsuitable when a large current flows. Further, in this conventional example, it is conceivable that the other fastening piece 25 is further extended and another electric wire is crimped there. However, it takes time and effort such as bending the main body 21 after crimping. Therefore, it is not preferable in terms of work.

The present invention has been made in consideration of the above circumstances, and has as its object to provide an electric connector for a battery which can easily caulk two electric wires and is suitable even when a large current flows.

[0007]

SUMMARY OF THE INVENTION The present invention is an electric connector for a battery for electrically connecting two electric wires to one battery electrode. First and second separate bodies each having a tightening portion, a crimping portion that abuts a substantially half circumference of the outer periphery of the battery electrode, and a tightening portion provided between the wire crimping portion and the crimping portion.
In the state that the battery electrode is sandwiched between the crimping portions of the two terminal pieces, an engagement groove is provided on the distal end side of one of the terminal pieces to be engaged with the distal end side of the other terminal piece. A fastening means for fastening the fastening portions of the two terminal pieces to each other is provided.

[0008]

When the electric wires are electrically connected to the battery electrode using the electric connector having the above-mentioned structure, first, each electric wire is connected to the first and second electrodes respectively.
A crimping connection is made to the wire crimping portion of the second terminal piece. Then, each crimping portion is brought into contact with the outer periphery of the electrode so that each terminal piece sandwiches the electrode, and the tip end side of the other terminal piece is engaged with the engaging groove on the tip side of one terminal piece. Then, by fastening the fastening portions to each other by the fastening means, the two terminal pieces to which the wires are crimped are connected to the battery electrode, and the battery electrode and the two wires are electrically connected.

[0009]

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

FIG. 1 is a perspective view of an electric connector according to an embodiment, and FIG.
Is a view from above. In the figure, 50 and 7
Reference numeral 0 denotes two terminal pieces that are separately configured. Each of the terminal pieces 50 and 70 is formed by pressing a strip plate, and has a crimping portion 60 that is curved in a semicircular shape so that a cylindrical battery electrode can be sandwiched in a state in which both are opposed to each other. I have. These crimp portions 60 are portions that directly contact the battery electrodes.

Further, at the base end of each of the terminal pieces 50 and 70,
An electric wire caulking portion 62 for caulking the electric wires W1 and W2 is provided. Each wire crimping portion 62 is provided on a surface facing outward when the terminal pieces 50 and 70 are fixed to the battery electrode. At the position of each wire crimping portion 62 near the crimping portion 60,
A fastening portion 64 is provided. The fastening portion 64 is provided with a bolt passage hole 66 and a pair of upper and lower engaging pieces 68 protruding toward the outer surface. And the bolt through hole 66
Through a square bolt 90 as a fastening means.
By tightening the nut 94 through the nut 2, the tightening portions 64 of the terminal pieces 50 and 70 are fastened to each other. The engaging piece 68 serves to prevent rotation of the square bolt 90 and the square washer 92 at the time of fastening. Also, 100
Is a cushion material sandwiched between the fastening portions 64, 64 of the terminal pieces 50, 70.

At the tip of one terminal piece 50, a hook-shaped hook portion 54 having an engaging groove 52 into which the tip of the other terminal piece 70 fits is provided. When the tip of the other terminal piece 70 is engaged with the hook part 54, the hook part 54 serves as a hinge, and the two terminal pieces 50 and 70 are rotatably connected. When the terminal piece 70 is engaged with the hook portion 54 in this manner, the terminal piece 7
A pair of upper and lower engaging pieces 5 for preventing the upper and lower parts 0 from falling off.
6 are provided.

In order to connect the electric wires W1 and W2 to the battery electrode using the electric connector having such a configuration, first, the electric wire crimping portions 6 of the terminal pieces 50 and 70 formed as shown in FIG.
2, the electric wires W1 and W2 are crimped. Next, the battery electrode is sandwiched between the two crimping portions 60 in a state in which the tips of the two terminal pieces 50 and 70 are engaged, and in this state, the cushion material 100 is sandwiched between the two using the bolts 90, washers 92 and nuts 94.
Are fastened to each other by the fastening portions 64, 64. By tightening in this manner, the crimping portion 6 of each of the terminal pieces 50 and 70 is formed.
0 is directly crimped to the battery electrode, and the electric wires W1 and W2 crimped to the terminal pieces 50 and 70 are electrically connected to the battery electrode.

In the case of this embodiment, the other terminal piece 7 is inserted into the engagement groove 52 of the hook 54 provided at the end of one terminal piece 50.
Since the hinge is formed simply by engaging the leading end of the terminal piece 0, the hinge can be freely disengaged and the work of attaching and detaching the terminal pieces 50 and 70 can be easily performed. In addition, the electric connector of the present embodiment is suitable for a case where a large current flows because the two terminal pieces come into direct contact with the battery electrode and the electric wires are directly crimped to the respective terminal pieces. In addition, since the electric wires are crimped to the two separate terminal pieces, the crimping operation is easy, and since the two electric wires are independent, the work during the operation is easy. In addition, since the electric wires can be easily arranged, the operation for fixing the terminal strip to the battery electrode is also facilitated. further,
The crimping part of one terminal piece is brought into contact with half of the outer periphery of the battery electrode, and the tip end side of the other terminal piece is engaged with the engaging groove of one terminal piece. By doing so, two wires can be electrically connected to the battery electrode, so that the work of connecting the wires to the battery electrode becomes easy.

[0015]

[Effects of the Invention] As described above, according to the present invention,
Since the two terminal pieces are in direct contact with the battery electrode and the electric wires are directly crimped to the respective terminal pieces, it is suitable when a large current flows. In addition, since the electric wires are crimped to the two separate terminal pieces, the crimping operation is easy, and since the two electric wires are independent, the work during the operation is easy. In addition, since the electric wires can be easily arranged, the operation for fixing the terminal strip to the battery electrode is also facilitated. Further, the crimping part of one terminal piece is brought into contact with half of the outer periphery of the battery electrode, and the tip end side of the other terminal piece is engaged with the engagement groove of one terminal piece. As a result, two wires can be electrically connected to the battery electrode, thereby facilitating the operation of connecting the wires to the battery electrode.

[Brief description of the drawings]

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

FIG. 2 is a plan view of one embodiment of the present invention.

FIG. 3 is a perspective view of a conventional example.

FIG. 4 is a perspective view of another conventional example.

[Explanation of symbols]

 W1, W2 Electric wires 50, 70 Terminal strip 62 Wire crimping part 90 Square bolt (fastening means) 92 Square washer (fastening means) 94 Nut (fastening means)

Claims (1)

(57) [Scope of request for utility model registration] 1. An electric connector for a battery for electrically connecting two electric wires to one battery electrode, comprising: an electric wire crimping portion to which an end of the electric wire is crimped and connected; One of a first terminal piece and a second terminal piece each having a crimping portion that abuts on a substantially half circumference of the outer periphery and a tightening portion provided between the wire crimping portion and the crimping portion. An engaging groove is provided at the distal end of the terminal piece so that the distal end of the other terminal piece engages, and the two terminal pieces are clamped while the battery electrode is sandwiched between the crimping portions of the two terminal pieces. An electric connector for a battery, comprising a fastening means for fastening parts to each other.