JPH0973891A - Electrode-connecting shunt wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrode-connecting shunt wire which uses a shunt lead wire having a copper sleeve at each end and prevents corrosion of the portion of contact between the electrodes of storage batteries and the copper sleeves by preventing the electrodes from making direct contact with the inner surfaces of holes in the copper sleeves. SOLUTION: Each end of a shunt lead wire 1 is inserted into a flat, cylindrical copper slave 2 and integrated into a flat shape under compression. Holes 3 for electrode connection are provided vertically through the copper sleeves 2, and cylindrical stainless bushes 4 are inserted into the holes 3. The bush 4 has a large-diameter flange part 4a at the edge of an opening in its lower end, thereby covering the inner surface of the hole 3 and the edge of the opening in the lower end. The shunt wire of such constitution connects storage batteries on both sides by fitting the electrodes of the storage batteries into the holes 3 in the sleeves 2 on both sides. Then the inner surface of the hole 3 in the sleeve 2 and the edge of the opening in the lower end are covered with the stainless bush 4, so the portion of contact does not corrode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shunt wire for connecting electrodes, which is used for electrically connecting rechargeable batteries such as lead storage batteries, alkaline storage batteries and solar cells mainly used in electric vehicles and the like. It is about.

[0002]

2. Description of the Related Art Conventionally, in many cases, a shunt lead wire having high mechanical strength is used to electrically connect storage batteries of this type to each other. This shunt lead wire is formed by braiding tin-plated copper wires, and its both ends are inserted into a flat cylindrical copper sleeve and compression-integrated into a flat plate shape. It is used by inserting the pin-shaped electrode of the storage battery.

[0003]

The electrode of this type of storage battery is usually made of aluminum or copper or brass. The copper material of the copper sleeve at the end of the shunt lead wire and the aluminum or copper or brass of the electrode are used. Used in direct contact with the material. However, if copper and aluminum or copper are used in contact with each other for a long time, corrosion may occur due to the potential difference or other causes, which may cause a decrease in conductive efficiency or a failure such as heat generation due to poor contact. Needed frequent inspections.

Therefore, the present invention uses a shunt lead wire having copper sleeves at both ends,
The main purpose is to provide a shunt wire for electrode connection, which prevents the aluminum electrode of the storage battery from directly contacting the inner surface of the hole of the copper sleeve to prevent corrosion at the connection part between the electrode and the copper sleeve. It is intended.

[0005]

In order to achieve the above object, the present invention takes the following technical means. That is, in the shunt wire for electrode connection according to the present invention, both ends of the shunt lead wire 1 formed by bundling copper wires into a strip shape are inserted into the flat copper sleeve 2 and compressed into a flat plate. And a through hole 3 for connecting an electrode is formed in the compressed flat plate-shaped copper sleeve 2, and a disk-shaped flange portion 4 is formed in the hole 3.
It is configured by inserting a stainless steel bush 4 having a.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of a shunt wire for electric wire connection according to the present invention, and reference numeral 1 denotes a shunt lead wire. This shunt lead wire 1 is conventionally known and is formed into a strip shape by bundling a large number of tin-plated copper wires in a plain weave shape. Some copper wires are not tin-plated.

Both ends of the shunt lead wire 1 are inserted into a flat copper sleeve 2 made of copper and compression-integrated into a flat plate shape. In addition, a copper sleeve 2 compressed into a flat plate is provided with a hole 3 for connecting an electrode in a vertically penetrating manner, and a cylindrical stainless bush 4 is inserted into the hole 3. The bush 4 has a large-diameter flange portion 4a at the opening edge at the lower end.
, Which covers the inner surface of the hole 3 as well as the edge portion of the lower end opening.

As shown in FIG. 3, the shunt wire constructed as described above is fitted with the electrode 8 of the storage battery 7 on the left side of the drawing in the hole 3 of one sleeve 2 and connected to the hole 3 of the other sleeve 2. It is used to insert the electrode 8 of the storage battery 7 on the right side to electrically connect the left and right storage batteries 7, 7. in this case,
Since the inner surface of the hole 3 of the copper sleeve 2 and the lower end opening edge portion are covered with the stainless steel bush 4, direct contact of the aluminum electrodes 8 with the copper sleeve 2 is prevented, and corrosion is not generated. It can be suppressed.

The left and right copper sleeves 2 and 2 of the shunt wire shown in the above embodiment are provided with holes 5 and 5 for vertically connecting cords, and the holes 5 and 5 are screw holes. The cell fasteners 6, 6 having the above are press-fitted. This cell fastener 6 is provided with a through screw hole 6a and serves to screw-connect the terminal 9a of the cord 9 for external connection as shown in FIG. The hole 5 for connecting the cord does not necessarily have to be provided in the left and right sleeves 2, 2 and is formed, for example, only in one sleeve 2 and placed at one end of the storage battery groups connected to each other. It may be attached to the anode of the storage battery and the cathode of the storage battery placed at the other end. Therefore, the sleeves 2 and 2 of the shunt wire for connecting the intermediate storage battery can omit the above-mentioned cord connection holes 5 and 5.

Incidentally, the left and right sleeves 2, 2 according to the present invention
Needless to say, the size of the shunt lead wire 1 in the middle or the middle may be changed according to the size and capacity of the storage battery used.
For example, as shown in FIG. 5, the intermediate shunt lead wire 1 may be formed by shortening the entire length. In this embodiment, the cord connecting hole 5 is formed only in one sleeve 2. Also, the shunt lead wire 1 is, as shown in FIG.
A large number of copper wires that are formed in a plain weave shape are often used.

The embodiments considered to be typical of the present invention have been described above. However, the present invention is not necessarily limited to the structures of these embodiments, and has the constitutional requirements and achieves the above object. As long as it has the following effects, it can be appropriately modified and implemented.

[0012]

As described above, in the shunt wire of the present invention, since the inner surface of the hole of the copper sleeve and the outer peripheral surface portion on one side thereof are covered with the flanged bush made of stainless steel, the aluminum fitting into the hole is performed. It is possible to prevent direct contact of the electrodes made of copper or the electrodes made of copper or brass with the copper sleeve, and to prevent the occurrence of corrosion.This reduces the conduction efficiency during use and causes heat generation due to poor contact. There is a remarkable effect that the occurrence of trouble can be prevented and the number of complicated inspections can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a shunt wire according to the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a cross-sectional view showing the usage state of FIG.

FIG. 4 is a side view of the same usage state.

FIG. 5 is a perspective view showing another embodiment.

FIG. 6 is a plan view showing another embodiment.

[Explanation of symbols]

 1 Shunt lead wire 2 Sleeve 3 Electrode connection hole 4 Bush

Claims (1)

[Claims] 1. A shunt lead wire 1 formed by bundling a copper wire into a strip shape and inserting both ends of the shunt lead wire 1 into a flat cylindrical sleeve 2 made of copper for compression and integration into a flat plate shape. 2 is provided with a through hole 3 for connecting to an electrode, and this hole 3
A shunt wire for electrode connection, which is formed by inserting a stainless steel bush 4 having a disk-shaped flange portion 4a into the.