JPS5839012Y2 - battery case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a battery case, and more particularly to a battery case that houses at least one pair of dry batteries connected in series.

Currently, in devices that use batteries as a power source, such as radios, tape recorders, etc., two dry batteries (1.5 V) are usually connected in series and used as a power source.

In recent years, organic electrolyte batteries using lithium as a negative electrode active material have been developed and commercially available.

This battery has about twice the voltage of a dry battery (1.5V), about 3 volts.

Therefore, if this battery is used, equipment that requires a power supply voltage of 3V can be used with just one dry battery instead of two.

The present invention focuses on this point and aims to provide a battery case with a structure that can be applied to the case where an organic electrolyte battery is used, which is equipped with a storage section for storing at least one pair of dry batteries.

Now, various methods can be considered for connecting at least a pair of dry batteries in series, as shown in FIGS. 1 to 3.

Figure 1 shows the case where there are 2 dry batteries 1, Figure 2 shows the case where there are 4 batteries, and Figure 3 shows the case where there are 6 batteries.The battery groups are connected in series by lead wires 2, and the output of this battery group is Voltage is at terminals 3 and 4
It can be taken out more.

When organic electrolyte batteries are used in the battery case of such dry batteries, half of the number of dry batteries may be used; for example, by replacing only the shaded areas with organic electrolyte batteries, the desired voltage can be obtained.

However, a problem when using organic electrolyte batteries is that there is a part of the battery compartment where the battery cannot be stored, so a battery dummy that also serves as a lead plate is inserted to fill the empty space. Electrical connections in the compartments shall be considered.

The present invention completely or partially exposes the outer surface of the battery container, which also serves as a unipolar terminal for an organic electrolyte battery, to serve as a unipolar external terminal, and an electrical contact piece that can be led out from one output terminal. When an organic electrolyte battery is installed in at least one of the battery compartments, by arranging it so that it contacts the upper external terminal, a normal battery case for dry batteries can be easily applied to organic electrolyte batteries with a simple structure. It is something that

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 4 and 5.

Reference numeral 6 denotes a battery case base made of, for example, synthetic resin, and a pair of battery storage sections 7, 7' are provided inside the base.

Reference numerals 8 and 9 denote positive and negative output terminals, respectively, including a metal plate 10 in contact with the positive terminal of the battery mounted in the storage section 7 and a metal elastic member in contact with the negative terminal of the battery mounted in the storage section 7'. They are electrically connected to the body 11, respectively.

10' and 11' are also metal plates and metal elastic bodies, and these are electrically connected by a lead plate 12.

Reference numeral 13 denotes an electrical contact piece disposed in a window 14 formed at the bottom of the storage section 7, which always faces the bottom surface of the storage section 7 due to its elasticity. It is derived from the extraction terminal 9.

If a pair of dry batteries is housed in a battery case with such a structure, the electrical circuit diagram will be as shown in Figure 1.
Three output voltages can be extracted from the output extraction terminals 8 and 9.

Next, if the organic electrolyte battery, which has the same shape as a dry battery but whose side surfaces are not covered with an insulator and is exposed and which also serves as the external terminal of the negative electrode, is stored in the storage compartment 7, the electrical circuit diagram at that time will be In the figure, only the hatched battery is present, and the output output terminal 8 is connected via the electrical contact piece 13.
, 9, an output voltage of 3■ can be obtained.

FIG. 6 shows another embodiment of the present invention, in which the electrical contact piece 13'
may be provided not only at the bottom of the battery storage section but also at the inside.

As described above, according to the present invention, in a battery case in which at least a pair of dry batteries are connected in series and housed therein, an electric contact piece that can be led out from one output terminal is connected to an organic electrolyte battery whose outer surface also serves as a unipolar terminal. It has a simple structure and can be easily applied to organic electrolyte batteries, which have about twice the voltage of dry batteries, by placing them in one of the storage compartments so that they touch the outer surface of the batteries when they are installed. , its practical value is extremely great.

[Brief explanation of the drawing]

1 to 3 show examples of series connection when the number of batteries is 2, 4, and 6, respectively. FIG. 4 is a plan view of a battery case showing an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along the line AA' of the same as above, and FIG. 6 is a cross-sectional view of essential parts in another embodiment. 6...Battery case base, 7,7'...
Battery compartment, 8゜9...Positive and negative terminals for output output, 13...Electric contact piece.

Claims (1)

[Scope of utility model registration request] An organic electrolyte having at least one pair of dry cell storage compartments, a pair of output terminals connected to the negative and anode terminals of a series-connected storage battery group, and a unipolar terminal formed on the outer surface. A battery in which an electrical contact piece that can be led out from one of the output extraction terminals is arranged in one of the storage parts in which the battery is installed so as to be in contact with an outer surface that also serves as a unipolar terminal of the organic electrolyte battery. Case.