Battery

Abstract

PROBLEM TO BE SOLVED: To provide a battery with a circuit board disposed along a battery cell and integrally fixed to the battery cell with a mold, having the improved filling efficiency of a resin in the mold, and allowing prevention of an appearance defect. SOLUTION: This battery A has a battery cell 1, and a circuit board 5 disposed along one face 4 of the battery cell 1, while the circuit board 5 is integrally fixed to the battery cell 1 with the mold 2. The circuit board 5 is formed such that at least border lines 20A each showing a border line in the width direction of a border line 20 when projecting the circuit board 5 upon the face 4 are positioned inside a border lien 21 of the face 4, and the circuit board 5 is embedded in the mold 2.

Description

field of invention [0001] The present invention relates to a battery used in portable terminals, and more particularly, to a battery having a structure in which a circuit board is integrally fastened to a battery case by a molded portion. Background technique [0002] Conventionally, as batteries used in portable terminals such as mobile phones, batteries having various circuit boards in a battery case, for example, a circuit board for protection against overcurrent, etc., have been provided. In general, this type of battery is integrally fastened with the battery case by using molding resin to fasten the above-mentioned circuit board from the viewpoint of ease of use and pattern design. [0003] Figure 4 , Figure 5 It is a figure which shows an example of the said conventional battery, Figure 4 Among them, the reference numeral 1 is the battery case, and the reference numeral 2 is the molding part. The battery case 1 is formed in a rectangular shape with a certain thic...

AI Technical Summary

Problems solved by technology

[0008] However, in the above-mentioned battery, the thickness dimension T1 of the battery case 1 and the short-side dimension T2 of the substrate main body 6 are set to be approximately the same. The width dimension T3 of the part 2 is set to be approximately the same as the thickness dimension T1 of the battery case 1, so when the molded part 2 is formed, the substrate main body 6 hinders the flow of the resin, and the filling efficiency of the resin is not high. Figure 4 As shown, the side surface of the substrate main body 6 is exposed on the surface of the molded part 2 after molding.

[0009] If the substrate main body 6 is exposed in the molding part 2, the battery cannot be marketed as a commercial product due to its unsightly appearance, and at the same time, it is difficult to disassemble and reuse, so from the viewpoint of cost balance, there is a great economic loss in battery manufacturing.

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