JPH0650941Y2 - Stationary lead-acid battery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a stationary lead-acid battery used as an emergency power source or the like in the event of a power failure.

2. Description of the Related Art Up to now, this type of stationary lead-acid battery has a large capacity as a single battery and is highly used as an assembled battery, and the voltage used at that time is various. Arbitrary output voltage was decided. As shown in FIG. 2, the unit cell here generally has the positive electrode column and the negative electrode column 2 protruding from the lid 3 at the center line l ₁ in the length direction of the unit cell,
It was provided so as to be symmetrical with respect to the center line l _{2 in the} width direction. When manufacturing a single cell, first, an electrode plate group consisting of positive and negative electrode plates and separator plates is formed, and then positive and negative electrode columns of the same thickness are formed.
A method in which the welded pieces of 1 and 2 are inserted into a battery case and then the lid 3 is fitted to the battery case to seal the space between the battery case and the lid is adopted.

Problems to be solved by the invention In such a single cell, since common parts are used, positive and negative poles of the same thickness are penetrated through the lid, but the pole pole through hole provided in the lid is the center of the lid. Since it is provided at a symmetrical position with respect to the line, the negative pole is penetrated through the pole pole through hole where the positive pole is supposed to be penetrated, and the positive pole is penetrated through the through hole where the negative pole is penetrated. So-called reverse penetration may occur.

In order to prevent such a reverse penetration of the pole column into the lid, a method is adopted such as coloring the positive pole column to facilitate the distinction between the positive and negative pole columns. The reality is that it cannot be prevented. When the pole column is penetrated through the lid in the opposite direction to the display pole column, the positive and negative terminals are passed to the user in the state opposite to the display. When such cells are used as an assembled battery, for example, 54 cells are used to obtain 10
When we completed the assembled battery of 8V, 200Ah specification, one of them
The individual cells are connected in the opposite direction, and when discharged, the reversely connected single cell receives a deep discharge exceeding the capacity of the other cells and reaches the pole change. Therefore, a reversely connected battery will reduce the overall capacity of the battery pack. Also, the life of the entire assembled battery is shortened.

The present invention is intended to solve such a conventional problem by preventing the positive and negative poles of the same thickness from penetrating through the pole pole through holes provided in the lid.

Means for Solving the Problems According to the present invention, a positive pole column and a negative pole column having the same thickness, which are connected to a pole plate group, are passed through pole pole through holes provided on both sides of the center line in the length direction of the lid, respectively. In the stationary lead-acid battery that is made to protrude above it, the amount of deviation from the center line in the length direction of the lids of the positive and negative electrode columns is made different.

Action With this configuration, the positive and negative poles and the pole pole through holes of the lid that penetrates the poles are located at asymmetrical positions when viewed from the center line in the length direction and the center line in the width direction of the lid. Therefore, even if pole columns with the same thickness are used, the pole pole through holes in the lid and pole poles fit only in one direction,
It is possible to penetrate the positive and negative poles through the lid in a state of matching the display polarity without coloring or marking the poles at all.

Example Hereinafter, the present invention will be described with reference to an example.

In FIG. 1, 1 is a positive pole, 2 is a negative pole, and 3 is a lid. The positive pole 1 and the negative pole 2 are provided with the same thickness in order to share parts. Therefore, the hole diameter of the pole pillar through hole 4 provided in the lid 3 is also the same. In the present invention, the pole pole through hole 4 of the lid is used.
The positive and negative polarities of the positive pole and the negative pole that protrude upwards, that is, the center of the pole pole through-hole, from the center line l ₁ in the longitudinal direction of the lid 3 The pillar 1 is made different from A, and the negative pole 2 is made different from A + X.

As a result, the positive and negative poles 1 and 2 are centered in the longitudinal direction of the lid l ₁
Of course is asymmetrical with respect to the center line l _{2 in the} width direction.
Is also asymmetric with respect to. This can also be understood from the fact that the line l ₃ connecting the centers of the positive and negative poles 1 and ₂ does not pass through the intersection of the _two center lines l ₁ and l ₂ of the lid.

In this way, the amount of deviation (length) from the center line l ₁ of the lid of the pole
If the lid 3 is made different, and even if it is attempted to penetrate the pole column by reversing the lid 3 by 180 ° from the correct direction, a part of the pole column will hit the pole column through hole and the pole column can be correctly penetrated. No, it is possible to check the lid for wrong orientation and prevent reverse penetration. The deviation X of the deviation amount (length) from the center line l ₁ of the positive and negative poles can be set arbitrarily according to the size of the battery. However, if X is too small, the lid is forced to fit on the pole. In this case, the pole may be deformed or the pole through hole or the bushing embedded in the pole may be deformed, so the length of the displacement X is 1 m.
It is preferably m or more.

As described above, according to the present invention, when the positive and negative poles having the same thickness are used, and the positive and negative poles are penetrated through the lid and protruded upward, the deviation amount from the center line of the lids of the positive and negative poles. By making the (length) different, it is possible to prevent reverse penetration into the lid of the pole column, and to project the pole column above the lid in accordance with the correct pole column display without coloring or marking the pole column. It is possible. Therefore, even when the assembled battery is configured by using such a unit cell, there is no reverse connection battery, reliability as an emergency power source is enhanced, and battery life can be extended.

[Brief description of drawings]

FIG. 1 is a top view of a unit cell according to an embodiment of the present invention, and FIG.
The figure is a top view of a conventional unit cell. 1 ... Positive pole, 2 ... Negative pole, 3 ... Lid, 4 ... Polar pole through hole.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroshi Sugiyama 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Shigeru Sasabe 6-6 Josaicho, Takatsuki City, Osaka Yuasa Battery Co., Ltd. (72) Inventor Masashi Iwata No. 1 Nishinosho-Inaba, Babacho, Kichijoin, Minami-ku, Kyoto City, Kyoto Prefecture Nihon Battery Co., Ltd. (56) References: 52-155931 (JP, U): 56- 41455 (JP, U) Actual opening 57-12655 (JP, U) Actual opening 60-130566 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A positive pole and a negative pole having the same thickness, which are connected to an electrode plate group, are made to penetrate through pole pole through holes provided on both sides of a center line in the length direction of the lid to project upward. A stationary lead-acid battery, which is a single cell, in which the positive and negative poles differ in the amount of deviation from the centerline in the length direction of the lid.