JPS6035962Y2 - Cylindrical spacer for storage batteries - Google Patents

Description

[Detailed description of the invention] Conventionally, it has been known that a cylindrical spacer that covers the circumferential side and the upper surface of the electrode plate group has a through hole for inserting and drawing out lead terminals in the upper surface covering wall. In the case of a cylindrical spacer with this structure, it is extremely difficult, tedious, and time consuming to insert the electrode plate group from the lower end opening surface, but to pull out the lead terminals of the electrode plate group to the outside through the through hole. It is unavoidable that such work becomes inefficient.

Another disadvantage is that the assembled product is slidably inserted and stored in the battery container with poor efficiency.

The present invention solves the above drawbacks, and provides a cylindrical spacer for a storage battery that facilitates the assembly work and improves the work efficiency of sliding insertion into the battery container. The cylindrical spacer 1 that covers the side and top surfaces is composed of at least two vertically divided cylinder pieces 1a, and at least one vertically divided cylinder piece 1a whose lower part is formed with an inwardly inclined surface 6 is formed on the side surface of each cylinder piece 1a. A directional rib 7 is provided in a protruding manner, and a notch 4 for inserting a lead terminal of the electrode plate group is provided in the edge 3 of the upper surface covering wall 2 of at least one cylindrical piece 1a.

One of the most preferred embodiments of the present invention will be described with reference to the accompanying drawings.

In Fig. 1, 1 extends from the two vertically divided cylinder pieces 1a, la, and forms two notches 4, 4 on the left and right in the edge 3 of the upper surface covering wall 2 of each cylinder piece 1a. The cylindrical spacer 1 of the present invention can be constructed in large quantities and with high efficiency using a single composite resin hollow mold.

That is, since it is sufficient that at least one lead terminal of the wound electrode plate group protrudes from the upper surface of the cylindrical spacer, at least one notch 4 is formed in at least one cylindrical piece 1a. However, if the half-cylindrical piece 1a is constructed using a mold that forms at least two notches 4, 4 on the left and right as described above, it can be used as a half-cylindrical piece on either the left or the right,
More preferably, when the two half cylinder pieces 1a, 1a are combined, the opposing notches 4. of each cylinder piece 1a, la.
4 are combined to enable insertion of a wide lead terminal.

Furthermore, according to the present invention, at least one longitudinal rib 7 whose lower part is formed into an inwardly inclined surface 6 is provided protruding from the side surface of each half-tube piece 1a.

In such a case, when the cylindrical spacer 1 of the present invention is housed in a metal container 5 of a battery as shown in the second figure, when inserting the cylindrical spacer 1 into the container 5, it is necessary to Insertion is carried out smoothly by the inwardly inclined surface 6 of the cylindrical spacer 1, and thereafter the cylindrical spacer 1 contacts the inner circumferential surface of the metal container 5 only through the ribs 7 provided on its circumferential surface. , frictional resistance with the inner circumferential surface of the metal container 5 is small, and smooth insertion work can be completed.

Generally, a hole 8 for inserting a welding rod is provided at the center of the edge 3 of the upper covering wall 2 of each half-cylindrical piece 1a.

The cylindrical spacer 1 of the present invention, as shown in the first figure, covers the outer periphery of the wound electrode plate group 9 with both half-cylindrical pieces 1a, 1a from the sides thereof, and in this case, the lead terminal 9a of the electrode plate group 9 The assembly work is easily completed by inserting it into the notch 4 from the side.

The thus assembled product is inserted into the battery container 5 via each of the ribs 7 having the shape described above, and the lead terminal 9a protruding upward is welded to the lid side as usual, and the other polarity lead terminal 9b is connected to the battery container 5. Weld it to the container side to form a battery.

In this way, according to the present invention, the cylindrical spacer 1 is composed of at least two cylindrical pieces 1a, la, and at least one cylindrical spacer whose lower part is formed with an inwardly inclined surface 6 is provided on the side surface of each cylindrical piece 1a. The vertical ribs 7 are protruding from the top, and the notches 4 for inserting lead terminals are provided in the upper covering wall 2, so assembly with the electrode plate group can be done from the side, making the assembly process simple and quick. Furthermore, the cylindrical spacer 1 can be inserted and stored into the container 5 very smoothly and quickly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one example of the present invention, Fig. 2 is a partially cutaway side view of the battery housed in the battery container, and Fig. 3 is an A-
A cross-sectional view taken along line A is shown. DESCRIPTION OF SYMBOLS 1...Tubular spacer, 1a...Vertically divided tube piece, 2...Top surface covering wall of spacer, 3.
・・・・・・Edge of upper wall covering.

Claims (1)

[Scope of utility model registration request] The cylindrical spacer 1 that covers the circumferential side and the upper surface of the electrode plate group is composed of at least two vertically divided cylinder pieces 1a, and a spacer with a lower part formed with an inwardly inclined surface 6 on the side surface of each cylinder piece 1a. For a storage battery, one longitudinal rib 7 is provided protrudingly provided in each case, and a notch 4 for inserting the lead terminal of the electrode plate group is provided in the edge 3 of the upper surface covering wall 2 of at least one cylindrical piece 1a. Cylindrical spacer.