JPS5849569Y2 - pack batteries - Google Patents

Description

[Detailed description of the invention] This invention relates to a battery pack in which several rechargeable batteries are electrically connected in series with lead plates, and the mechanically connected battery group is housed in a resin battery storage case. In particular, in the battery receiving part of the applied equipment in which this battery pack is used, even if the installation positions of the power receiving terminals there are different, the power supply terminals on the battery pack side should be in contact with each other. The shape and installation location of the power supply terminals have been taken into consideration to ensure sufficient flexibility in the use of this battery pack.

Hereinafter, one embodiment of the present invention will be described.
A large number of 1-CD batteries 1, 1... are arranged horizontally in a row with their positive terminals 2 and negative terminals reversed, and each battery 1
, 1, . . . are electrically connected in series using lead plates (not shown) and mechanically coupled to form one battery group.

Then, this battery group is housed in a battery storage case 3 made of resin to form a battery pack 4.

Further, as common external terminals for these battery groups, an L-shaped positive electrode terminal 5 and a negative electrode terminal 6 for both charging and discharging are installed in the battery storage case 3.
Window hole 20.20 made by cutting out both corners 7 and 8 on one side
exposed to.

The widths of the grooves 9 and 10 formed in the corners 1 and 8 of the battery storage case 3 are changed to expose the positive and negative terminals 5 and 6, thereby distinguishing the positive and negative terminals.

Therefore, since the positive and negative electrode terminals 5 and 6 for charging and discharging are exposed across both the front side 3' and side side 3'' of the battery storage case 3, various applied electric devices that use this battery pack 4 as a power source Power receiving terminal 13 installed in the receiving part 11.12 of
, 13, 14, 14 are the receiving part 11 as shown in FIG.
Even if it is on the bottom of the recess 15, like Father's day, the side of the recess 1
6, 16, the L-shaped positive and negative electrode terminals 5, 6 are located on the front surface 5' of both.

6' or side portions 5// and 6// come into contact with each other, and the range of use of this battery pack 4 is expanded.

Further, this battery pack 4 has three recessed fitting grooves 17, 17 formed on the circumferential surface of the battery storage case 3.

These grooves 17 and 17 are formed by arranging several of the battery packs 4 and 4 so that their positive and negative terminals 5 and 6 are adjacent to each other and connecting terminals 1 to 17.
8. When connected with 18..., these pack batteries 4,4
... Connecting band 19.1 so that it can be tied into a bundle.
9 is to be fitted.

In this way, the battery packs 4, 4, . . . can be made into a unitized power source with a larger capacity.

Therefore, the battery pack 4 is generally used as a power source for electric tools such as electric drills, but the setting state of the power receiving terminal in the battery receiving part on the tool body side is deep inside as shown in Fig. 3A. The positive and negative external terminals 5 and 6 of the battery pack 4 can be contacted even if the external terminals 5 and 6 of the battery pack 4 are circular or have a circular inner surface such as an opening.

As described above, the battery pack of the present invention has L-shaped positive terminals for charging and discharging in the openings cut out at both corners of one side of the battery storage case in which an appropriate number of rechargeable batteries are stored. Since it is installed so that it is exposed, even if the power receiving terminal set in the battery receiving part of the applied equipment that uses this battery pack as a power source is installed in a different position, the front or side surface of the above-mentioned cross-shaped terminal can be contacted. Therefore, the range of use as a common power source is expanded and it becomes economical.

Further, on the circumferential surface of the battery storage case of this battery pack, a connecting band is provided so that when the positive and negative electrode terminals of these battery packs are connected to increase the capacity and a plurality of battery packs are combined, the whole battery can be folded into a bundle. Fitting grooves into which they are fitted are formed respectively.

Therefore, there is a practical effect that a large-capacity power supply unit that is easily unitized can be constructed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view, plan view, and side view of the battery pack of the present invention; FIG. 2 is a partially cutaway perspective view of the battery pack; and FIG. This diagram schematically shows the terminal contact situation when the power receiving terminals of the pack battery and the applied equipment that accepts it are installed differently. Fig. 4 is a perspective view showing a state in which several battery packs are combined with a connecting band to form a large-capacity power source, and Fig. 5 is a partially cutaway view similar to Fig. 2. It is an external perspective view. 1... Rechargeable battery, 3... Battery storage case, 20, 20... Window hole, 5, 6...
...Positive and negative terminals for charging and discharging, 17, 17...
- Fitting groove.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A window hole is created by cutting out both corners of one side of a battery storage case containing a rechargeable battery, and each window hole is bent into an L shape. A battery pack with exposed positive and negative terminals for charging and discharging. 2. The battery pack according to claim 11, wherein a groove for fitting a band for bundling a plurality of battery packs is formed on a surface of the battery storage case.