JPH062556U - Structure of rechargeable battery pack - Google Patents

Abstract

(57) [Abstract] [Purpose] The rechargeable battery pack for a wireless communication device can be installed in the battery pack quickly and easily without the need to wire the rechargeable battery pack. . [Structure] The inter-electrode connection terminals 2 are connected by spot welding between the battery electrodes of the rechargeable battery pack 3, and the U-shaped external connection terminals 1 are spot-welded to the input / output electrodes of the rechargeable battery pack 3. . The battery pack case 4 and the lid 5 that house the rechargeable battery pack 3 have window holes 41 and 5 so that the external connection terminal 1 abuts the charger terminal and the power supply terminal of the wireless communication device, respectively.
It is a rechargeable battery pack that is easily assembled by providing 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the 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 the battery electrodes are connected by wires instead of wiring.

[0002]

[Prior art]

 Many handy type wireless communication devices use a combination of a wireless communication device body and a battery pack as shown in FIG. Also, 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 battery pack of this rechargeable battery pack is an exploded perspective view of the structure of the rechargeable battery pack shown in FIG. 2 according to the conventional method. The figure will be described. Each of 3a, 3b and 3c is a rechargeable battery and may be a square or round type as long as it is a standard product. 2 is a conductor that connects the electrodes when connecting multiple batteries. If the number of manufactured products is small, they are connected by soldering. 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 the charging terminal 6 can be connected to the charging terminal of an external charger (not shown). Reference numeral 7 denotes an output terminal for a load, which is provided inside the terminal hole 10 and has a structure in which the power supply terminal of the wireless communication device body comes into contact 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 using the wire 9, soldering in a small battery pack is required. The work requires skill and requires unnecessary man-hours.

[0005]

In the prior art as described above, a wire rod must be soldered to each terminal when manufacturing the assembled battery, and conversely, when replacing the battery, the wire rod must be removed. There was the trouble of having to do it.

Further, with the miniaturization of the rechargeable battery pack, restrictions such as 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]

[Means for Solving the Problems]

 The case of the battery pack has a window for inserting the charging terminal and a window for inserting the power terminal of the wireless communication device connected to the output side of the rechargeable battery pack. In order to make the external connection terminal, which is a U-shaped rectangular conductor conforming to the shape of the battery, be spot-welded to the electrode in order to make it the battery electrode terminal. Both ends of the U-shaped electrode terminal are located at the respective window positions for charging and output and serve as charging and output terminals.

[0008]

【Example】

 FIG. 1 is an exploded perspective view of a rechargeable battery pack showing an embodiment of the present invention. The figure will be described. 1 is an external connection terminal for battery electrodes, 2 is a connection terminal between battery electrodes, 3 is a battery pack, 3a, 3b, 3c are rechargeable batteries of standard specifications, 4 is a case of a battery pack, 5 is a lid of a 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. The rechargeable batteries 3a, 3b, 3c are standard products that are commercially available, and may be square or round in shape. An inter-electrode connection terminal 2 made of a conductor is bonded between the adjacent electrodes. In this case, spot welding is efficient. On the positive and negative electrodes of the input / output electrodes of the assembled battery 3 connected in series, the recesses of the external connection terminals 2 formed by shaping rectangular conductors into a U shape are spot-welded to the electrodes.

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

The combination of rechargeable batteries described above is connected in series, but 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]

[Effect of device]

 As described above, according to the present invention, at the time of manufacturing a rechargeable battery pack, the U-shaped external connection terminals are simply spot-welded to the positive and negative electrodes. , It has the effect of saving the trouble of soldering to the output terminal. 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 ...... Inter-electrode connection terminal 3 ・ ・ ・ Assembly battery 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 connecting terminal is welded and connected to each electrode, 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 have 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 hole to serve as a charging terminal and an output terminal.