JPH0719087Y2 - Structure of rechargeable battery pack - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a rechargeable battery pack which is a connection method in which a plurality of rechargeable batteries are combined to form a block-shaped battery pack and wiring between battery electrodes is replaced by a wire.

[0002]

2. Description of the Related Art Most handy type wireless communication devices use a combination of a wireless communication device body and a battery pack as shown in FIG. Further, this battery pack uses a rechargeable battery pack so that it is not necessary to replace the battery each time the battery is used.

A conventional battery pack of this rechargeable battery pack is an exploded perspective view of the structure of the rechargeable battery pack shown in FIG. The figure will be described. Each of 3a, 3b, and 3c is a rechargeable battery, and may be a prism or a round shape as long as it is a standard product.
Reference numeral 2 is a conductor that connects electrodes when connecting multiple batteries. If the number of manufactured products is small, they are connected by soldering. If the number is large, it is a connection part that connects the batteries in series or in parallel by spot welding. is there. Reference numeral 4 is a case for housing the assembled battery, and 5 is a lid of the case 4. A charging terminal 6 is attached to the inner surface of the case, and a window hole 10 is provided so that a charging terminal of an external charger (not shown) can be connected to the charging terminal 6. An output terminal 7 for the load is provided inside the terminal hole 10 and has a structure in which the power supply terminal of the main body of the wireless communication device contacts when the battery pack is mounted. Reference numeral 8 is a terminal of an electrode to be soldered to the assembled battery. The wire 9 soldered to the electrode terminal 8 is soldered to the charging terminal 6 and the output terminal 7 provided on the case of the battery pack.

As described above, in order to solder the rechargeable battery pack to the charging terminal 6 and the output terminal 7 provided on the case of the battery pack by using the wire 9, soldering work in a small battery pack is required. This requires skill and requires unnecessary man-hours.

[0005]

In the prior art as described above, a wire must be soldered to each terminal when manufacturing the assembled battery, and conversely, when the battery is replaced,
There has been the difficulty of having to remove the wire.

Further, with the miniaturization of the rechargeable battery pack, restrictions on the length and size of the wire rod are added, and the workability thereof is extremely poor. The present invention has been made for the purpose of improving such drawbacks of the conventionally known rechargeable battery pack.

[0007]

A battery pack case is provided with a window into which a charging terminal is inserted, and a window into which a power terminal of a wireless communication device main body connected to an output side of a rechargeable battery pack is inserted. The input and output battery electrodes of the rechargeable battery pack are spot-welded to the electrodes so that the external connection terminals formed by forming a rectangular conductor into a U-shape in accordance with the shape of the battery are used as battery electrode terminals. Both end portions of the U-shaped electrode terminal are located at respective charging and outputting window positions to serve as charging and output terminals.

[0008]

1 is an exploded perspective view of a rechargeable battery pack showing an embodiment of the present invention. The figure will be described. Reference numeral 1 is an external connection terminal of battery electrodes, 2 is a connection terminal between battery electrodes, 3 is a battery pack, 3a, 3b, 3c are rechargeable batteries of a normal standard, 4 is a case of a battery pack, 5 is a lid of the battery pack, 41 Is a window hole into which the electrode terminal of the external charger is inserted, and 51 is a window hole into which the electrode terminal of the wireless communication device is inserted.

As shown in the figure, a plurality of rechargeable batteries are arranged in a plate shape and fixedly arranged by a bonding method (not shown) so that positive and negative electrodes are adjacent to each other. This rechargeable battery 3
Reference characters a, 3b, and 3c are standard products that are commercially available, and the shape may be square or round. An inter-electrode connection terminal 2 made of a conductor is bonded between the adjacent electrodes. In this case, spot welding is effective. Battery pack 3 connected in series
The positive and negative electrodes of the input / output electrode are spot-welded to the concave portions of the external connection terminal 2 in which rectangular conductors are shaped in a U shape.

The assembled battery 3 thus formed is housed in a case 4 of a battery pack and a lid 5 is provided.
Each has a window hole 41 into which the charging terminal of the external charger can be inserted.
And a window hole 51 into which the power supply terminal of the wireless communication device is inserted when it is mounted on the wireless communication device. Inside the window hole 41 of the case 4 and inside the window hole 51 of the lid 5, an external connection is made. There are both ends of the terminal 1, which form the charging electrode terminal and the output electrode terminal. Since the case 4 and the lid 5 do not have the wire 9 in the prior art, the shape can be made smaller.

Although the above-mentioned combination of rechargeable batteries is connected in series, the structure and mounting of the external connection terminal 1 are the same even if they are connected in parallel depending on the application.

[0012]

As described above, according to the present invention, when a rechargeable battery pack is manufactured, a U-shaped external connection terminal is simply spot-welded to the positive electrode and the negative electrode. Also, there is an effect that the trouble of soldering the charging terminal and the output terminal can be saved. Therefore, since a wire rod or a lug terminal is not used, the number of parts can be reduced, and the battery pack can be downsized as long as the wire rod does not intervene, which is economical.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a rechargeable battery pack according to the present invention.

FIG. 2 is an exploded perspective view of a conventional rechargeable battery pack.

FIG. 3 is an embodiment diagram of mounting a rechargeable battery pack.

[Explanation of symbols]

 1 ...... External connection terminal 2 ...... Electrode connection terminal 3 ・ ・ ・ Battery packs 3a, 3b, 3c ・ ・ ・ Rechargeable battery 4 ・ ・ ・ Battery pack case 5 ・・ ・ ・ ・ Battery pack case lid 6 ・ ・ ・ ・ ・ Charging terminal 7 ・ ・ ・ ・ ・ Output terminal 8 ・ ・ ・ ・ ・ Lug terminal 9 ・ ・ ・ Wire rod 41 ・ ・ ・ ・ Charging window hole 51 .... Output window holes

Claims (1)

[Scope of utility model registration request] 1. A plurality of rechargeable batteries are arranged side by side in a plate shape and fixed, and between adjacent electrodes of each battery, an inter-electrode connection terminal is welded to each electrode for connection, and these batteries are connected according to the purpose of use. In the assembled battery structure of rechargeable batteries connected in series or in parallel, the positive and negative electrodes connected to the outside of the assembled battery are provided with external terminals that are rectangular shaped conductors shaped in a U shape to match the battery shape The structure is welded to each electrode, and the battery pack case that houses the assembled battery has a window hole for inserting the charging terminal and a hole for inserting the power terminal on the load side connected to the output side of the assembled battery. And the external connection terminal is located inside the window to serve as a charging terminal and an output terminal.