JP2587633Y2 - Blister pack 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 a blister pack containing a battery or a battery pack.

[0002]

2. Description of the Related Art As shown in Japanese Utility Model Publication No. 2-16514, it has been conventionally practiced to cover one of the positive and negative terminals of a battery with an insulating tape. Thereby, the positive and negative terminals of the battery can be prevented from being short-circuited by mistake, and when the battery is used, the terminal can be exposed by peeling off the insulating tape, so that the battery can be used without any problem. It is possible.

In the case of a primary battery, the battery is usually replaced when the battery is exhausted, and the used battery is discarded. When the current consumption of the battery-powered device is small, the battery is efficiently discharged, and can be disposed of in a state almost completely discharged.

However, some devices are set so that the battery cannot be discharged when the battery voltage falls below a certain voltage. In such a case, or the current consumption of the device is larger than the capacity of the battery. In such a case, the battery is not completely discharged, and is discarded with some capacity remaining. Further, in the case of a device that is used for a short period of time such as a camera, it is necessary to use the device before use (for example,
Battery replacement, etc.).

As described above, when the battery is discarded without being completely discharged, the battery used after peeling off the insulating tape covering the electrode terminals of the battery at the time of use as described above may not be used. In this method, both the positive and negative terminals are exposed, and the positive and negative terminals are short-circuited externally via a metal object, and the short-circuit current causes abnormal heat generation of the battery, thereby impairing safety. In particular, due to recent innovations in battery technology, the self-discharge rate of lithium batteries, etc., has been kept extremely low.If the battery is discarded with the remaining battery capacity remaining, it can be discharged for a long time. This is a problem.

[0006] When a large amount of batteries are discarded,
When the batteries come into contact with each other, a completely discharged battery may be further forcibly discharged and may be in an overdischarged state. In such an overdischarge state, the battery does not undergo a normal discharge reaction, and there is a problem that the electrolyte in the battery is decomposed and the internal pressure of the battery rises. The gas generated by decomposition at the time of discharge may be flammable, and it is not completely safe to dispose in a completely discharged state.

[0007]

SUMMARY OF THE INVENTION The present invention is intended to prevent an external short circuit of a battery or an assembled battery, and to efficiently manufacture a short-circuit preventing component.

[0008]

SUMMARY OF THE INVENTION A blister pack for a battery according to the present invention is made of a resin having a base and a storage portion mounted on the surface of the base and for storing a cylindrical battery or an assembled battery. A cylindrical insulating cap that covers the electrode terminals of the cylindrical battery or battery pack is formed integrally with the resin cover body, and the resin cover body has a cutout line that can separate the cylindrical insulating cap. It is characterized by being formed.

[0009]

When the cylindrical insulating cap is attached so as to cover the electrode terminals of the cylindrical battery or the assembled battery, the cylindrical battery is not short-circuited externally, and the above-mentioned inconvenience due to short-circuit current and overdischarge can be prevented. .

The cylindrical insulating cap for preventing the short circuit is formed integrally with the cover of the blister pack, so that it is not necessary to manufacture the cylindrical insulating cap separately from the blister pack, thereby simplifying the manufacturing process. It is possible to

Further, the cylindrical insulating cap, since that would be purchased with a cylindrical battery or battery pack in a state of blister packs, to the user when the battery is changed, a used cylindrical battery or set It becomes possible to recognize that the battery is disposed of by attaching a cylindrical insulating cap so as to cover the electrode terminal of the battery. This ensures that the used battery terminals are covered with the cylindrical insulating cap and discarded at the same time as battery replacement.

[0012]

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

FIG. 1 is a perspective view of the battery blister pack of the present invention. In FIG. 1, reference numeral 1 denotes a base on which a through hole 2 for hanging is formed. Is mounted. A housing 4 for housing the cylindrical battery is formed integrally with the resin cover 3 so as to protrude forward from the bonding surface with the base, and a bottomed portion is provided above the housing 4. A cylindrical cylindrical insulating cap 5 is integrally formed. Further, a hole 6 is formed at a boundary between the cylindrical insulating cap 5 and the resin cover body 3 at a constant interval along the boundary to form a cut line.

The user of the battery purchases the blister pack containing the cylindrical battery, removes the battery from the blister pack, separates the cylindrical insulating cap 5 from the resin cover 3 of the blister pack, and removes the cylindrical cylinder. The shaped insulating cap 5 is mounted so as to cover the electrode terminal of the used battery, and discarded.

FIGS. 2 and 3 are longitudinal sectional views showing a state where the cylindrical insulating cap 5 is attached to the electrode terminals of the unit cell and the assembled battery, respectively. The assembled battery is composed of a plurality of cells 7 connected in series by leads 8 and its peripheral surface is insulated and covered with a heat-shrinkable tube 9. It is configured to be covered with a tube 9. In these batteries and battery packs, the positive and negative terminals 10 and 11 are exposed on both end surfaces not covered with the heat-shrinkable tube, and the cylindrical insulating cap 5 is attached so as to cover the positive terminal 10. And will be discarded.

[0016] Thus, by discarding over the one electrode terminal of the cylindrical battery or the assembled battery in cylindrical insulating cap, used batteries can be prevented can cause an external short circuit, short-circuit current or overdischarge Can be solved.

In this embodiment, an example is shown in which only one electrode terminal of a cylindrical battery or an assembled battery is covered with a cylindrical insulating cap. However, both positive and negative electrode terminals may be covered with an insulating cap. It is more advantageous to cover the terminals because short-circuiting and the like can be more reliably prevented.

The battery blister pack of the present invention is formed by integrally forming a cylindrical insulating cap for covering the electrode terminals of a cylindrical battery or an assembled battery with a cover constituting the blister pack. The used battery or assembled battery can be discarded by attaching a cylindrical insulating cap to its electrode terminal, thereby preventing the used battery from being short-circuited or overdischarged.

[Brief description of the drawings]

FIG. 1 is a perspective view of a blister pack for a battery according to the present invention.

FIG. 2 is a longitudinal sectional view showing a state in which an insulating cap is attached to a unit cell.

FIG. 3 is a longitudinal sectional view showing a state where an insulating cap is attached to the battery pack.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 3 Cover body 4 Battery storage part 5 Insulating cap 7 Cell 9 Heat shrinkable tube

Claims (1)

(57) [Scope of request for utility model registration] 1. A cylindrical battery or battery pack, comprising: a base; and a resin cover mounted on a surface of the base and formed with a storage portion for storing a cylindrical battery or an assembled battery. A battery, wherein a cylindrical insulating cap covering an electrode terminal is formed integrally with a resin cover body, and the resin cover body is formed with a cutout line capable of separating the cylindrical insulating cap. Blister pack.