JPH0722016A - Battery pack - Google Patents

Abstract

PURPOSE:To dispense with secondary working such as terminal bending work and insertion of the terminal in molding by inserting an output terminal to be fixed to a case into projections disposed previously in the case, covering the terminal with an insulating material, containing a plurality of batteries, and covering the batteries with another case, and fixing the terminal to the case. CONSTITUTION:A battery pack 1 is inserted under hook projections 7a, 7b formed on a case 4 at one end of each of terminals 5a, 5b, which are exposed to terminal holes 6a, 6b formed in the case 4, and is pressed against the case 4 by a battery 2 for containing the terminals 5a, 5b inside the cases 3, 4 so as to fix the terminals 5a, 5b to the case 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack in which a plurality of batteries are housed in a case and integrated.

[0002]

2. Description of the Related Art Conventionally, as a method of fixing a terminal in a general battery pack, there has been one as shown in FIGS. In the method shown in FIG. 4, the terminal 22 is inserted into the notches 21a, 21a formed in the case 21, and the end of the terminal 22 is bent so as to be wrapped around the projection 23 formed between the notches 21a, 21a. I try to fix it by winding it around. Further, in the method shown in FIG. 5, when the case 21 is formed, the terminals 22 are simultaneously fitted and formed and fixed.

[0003]

However, in the above-mentioned conventional structure, the former case requires secondary processing of bending the terminal, and the latter case requires insertion of the terminal at the time of molding, both of which are required. There is a problem that productivity is lowered and cost is increased.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art. In the battery pack of the present invention, one end of the terminal is provided with the terminal facing the hole for the terminal provided in the case. The terminal is fixed under the hook-shaped projection provided in the case, and the terminal is fixed to the case by pressing the terminal against the case by a battery housed in the case.

[0005]

With this structure, the output terminal attached to the case has one end of the terminal in a state in which the terminal is provided in the terminal hole provided in advance in one of the upper and lower divided cases. The terminal is fixed to the case by simply sandwiching it under the hook-shaped projection, then covering the terminal with an insulator, accommodating multiple batteries from above, and then closing the lid with another case. As described above, there is no need to perform a secondary process such as a bending process of the terminal or to insert the terminal at the time of molding.

[0006]

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

1 and 2, reference numeral 1 denotes a battery pack according to the present invention, which comprises an upper case (divided case) 3 and a lower case (divided case) 4 which are obtained by dividing a plurality of batteries 2 into upper and lower parts. I decided to house it. The positive electrode terminal 5a and the negative electrode terminal 5b are respectively sandwiched under the hook-shaped projections 7a and 7b while facing the terminal holes 6a and 6b provided in the lower case 4. In this embodiment, these terminals 5a,
5b is covered with an insulator 8 to prevent a short circuit between the terminals 5a and 5b. In this state, the battery 2 is placed on both terminals 5a and 5b.
The terminals 5a and 5b are fixed to the lower case 4 by accommodating them. In the figure, 9 is a lead wire, 1
Reference numeral 0 indicates a connecting plate between the batteries 2.

[0008]

According to the structure of the present invention, the output terminal attached to the case is sandwiched by the hook-shaped projections provided in advance on the case, and then the terminal is covered with the insulator to accommodate a plurality of batteries. After that, the terminal is fixed to the case simply by covering it with another case, which requires secondary processing such as bending of the terminal as in the past or insertion of the terminal at the time of molding. Disappear. Therefore, the manufacturing as a whole can be facilitated and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is an overall exploded perspective view of an embodiment of a battery pack of the present invention

FIG. 2 is an overall perspective view of an embodiment of the battery pack of the present invention.

FIG. 3 is a sectional view of a terminal portion.

FIG. 4 is a sectional perspective view of a terminal portion of a conventional example.

FIG. 5 is a cross-sectional perspective view of a terminal portion of a conventional example.

[Explanation of symbols]

 1 Battery Pack 2 Battery 3 Upper Case 4 Lower Case 5a Positive Terminal 5b Negative Terminal 6a Terminal Hole 6b Terminal Hole 7a Hook Protrusion 7b Hook Protrusion 8 Insulator 9 Lead Wire 10 Connection Plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazushige Sato 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Katsuji Tsujioka, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A terminal hole is provided in a case, and one end of the terminal is sandwiched under a hook-shaped protrusion provided in the case while the terminal is exposed to the terminal, and the terminal is accommodated in the case. The battery pack is characterized in that the terminal is fixed to the case by pressing it against the case with a battery.