JPH04181648A - Thin battery, and module and card using thin battery - Google Patents

Abstract

PURPOSE:To stably mount a battery on a printed circuit board by folding connecting electrodes extended from an upper electrode and a lower electrode downward in advance, and setting their tips to the same height as the lower face position of the lower electrode. CONSTITUTION:A thin battery 1 is constituted of an upper electrode 2, a lower electrode 3 and an insulating layer 4 separating and insulating the electrodes 2, 3. Connecting electrodes 5, 6 extended from the electrodes 2, 3 to the side are folded downward, and their tips are set to the same height as the lower face position of the electrode 3. When the battery 1 is mounted on a printed circuit board 10, the tips of the electrodes 5, 6 are located on the circuit board 10 face, and the electrodes 5, 6 can be connected and fixed into a wiring pattern by the solder 12 without being folded. Labor is simplified, and the battery 1 can stably be mounted on the printed circuit board 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of a thin battery used in a memory card or a non-contact card, and a module and card using the same.

(Prior Art) FIGS. 4(a) and 4(b) are a plan view and a side view showing the external shape of a thin battery used in a conventional memory card or non-contact card.

The thin battery 1 includes an upper electrode 2, a lower electrode 3 disposed in pairs on the upper electrode 2, and an insulating layer 4 interposed between the upper electrode 2 and the lower electrode 3 to separate and insulate each electrode 2 and 3.
Connecting electrodes 5.6 are provided extending horizontally from the respective electrodes 2.3 in the same direction.

(Problem to be solved by the invention) Since the conventional thin battery 1 is configured as described above, when mounting it on a printed wiring board etc., each connection electrode 5 and 6 must be bent or It is necessary to make a mechanical connection, which is very time-consuming, and there is also the problem that if the bending position is not accurate, the connection by soldering cannot be made stably.

Thin batteries used in memory cards and non-contact carts are often installed in advance on printed wiring boards, etc. In that case, it is preferable that they can be installed automatically like parts such as integrated circuits, but the conventional products mentioned above The current situation is that it cannot be installed.

(Means for Solving the Problems) The present invention has been made in view of the above circumstances, and claims (1)
), in a thin battery formed by laminating an upper electrode and a lower electrode with an insulating layer in between, each of the connection electrodes extending laterally from each of the electrodes is bent downward and formed. , the tip thereof is arranged at the same height as the lower surface of the lower electrode.

The invention of claim (2) provides an electro-hydraulic IC (integrated circuit) module characterized in that the thin battery of claim (1) is mounted thereon.

In the invention of claim (3), the battery-mounted type I of claim (2)
A battery built-in card characterized by having a built-in C module was obtained.

(Function) According to the invention of claim (1), the connection electrode extending from the upper electrode and the lower electrode is bent downward in advance, and its tip is arranged at the same height as the lower surface of the lower electrode. Therefore, when the battery is placed on the printed wiring board during mounting, its tip is located on the printed wiring board surface, and the connection can be fixed without bending the connection electrode.

According to the invention of claim (2), by using the thin battery of claim (]), it is possible to easily manufacture a battery-mounted IC monoyl in which the thin battery is stably attached.

According to the invention of claim (3), by using the battery-mounted IC module of claim (2), a thin battery can be stably attached and an f-comi-pond built-in card can be easily manufactured.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
Figures (a) and (b) are a plan view and a side view showing the appearance of a thin battery used in conventional memory cards and non-contact cards. In FIG. 1, the same numbers as in FIG. 4 are used for the same parts as those shown in FIG. 4.

The thin battery 1 of the present invention includes an upper electrode 2, a lower electrode 3 disposed relative to the upper electrode 2, and an insulating layer interposed between the upper electrode 2 and the lower electrode 3 to separate and insulate the respective electrodes 2 and 3. 4, and its basic configuration is the same as that of the conventional example.

In the present invention, each of the connection electrodes 5.6 extending laterally from each electrode 2.3 is bent downward and its tip is placed at the same height as the bottom surface of the lower electrode 3. It is made up of 1 piece.

With the above configuration, when mounted on the printed wiring board 10 as shown in FIG. 2 (aXb), the thin battery 1
When placed on the printed wiring board IO, the connection electrode 5.6
The tip of is located on the printed wiring board 10 surface, and the connection electrode 5
．． 6 can be connected and fixed to the wiring pattern 30 of the printed wiring board IO by solder 12 without bending.

FIG. 3 shows a battery built-in card 20 using the thin battery 1 described above.
FIG. 2 is a simplified cross-sectional configuration diagram.

The cart 20 is placed over both sides of the center core 13 :/
−)+4 is pasted and recess 1 formed on the − blade side surface
A battery-mounted IC module 17 configured by mounting the above-mentioned thin battery 1 and an IC+ 6 on a printed wiring board 10 is housed in the battery 5 . When manufacturing the above IC module 1.7, the thin battery 1 is automatically mounted on the printed wiring board IO in the same manner as the 1Cl6 due to the bending configuration of the connecting electrode 5.6 of the thin battery 1. The thin battery 1 is stably attached and the IC module I7 can be easily manufactured, and furthermore, by using the IC module 17, the battery built-in card 20 with the thin battery I stably attached is easy to manufacture. can be obtained.

(Effects of the Invention) As described above, according to the present invention, the connection electrode extending from the upper electrode and the lower electrode is bent downward in advance, and its tip is placed at the same height as the lower surface of the lower electrode. Therefore, when the battery is placed on the printed wiring board during installation, its tip will be located on the printed wiring board surface, and the connection can be fixed without bending the connection electrode.
This makes it possible to stably mount thin batteries onto printed wiring boards, etc., without much effort.

As a result, thin batteries can be automatically mounted on printed wiring boards, etc. in the same way as components such as integrated circuits, reducing the manufacturing time of battery-equipped IC modules using thin batteries and battery-equipped cards using such modules. ,
It has become possible to reduce manufacturing costs and improve product performance.

[Brief explanation of drawings]

1 to 3 relate to embodiments of the present invention, and FIG.
a) is a plan view of the thin battery, FIG. 1(b) is a side view of the same, and FIG.
Figure (a) is a plan view showing a thin battery mounted on a printed wiring board, Figure 2 (b) is a side view of the same, and Figure 3 is a simplified vertical cross-sectional view of a battery built-in cart using a thin battery. It is. FIG. 4(a) is a plan view of a conventional thin battery, and FIG. 4(b) is a side view of the same. 1 Thin battery, 2... Upper electrode, 3. Lower electrode, 4... Insulating layer, 5.6... Connection electrode, 17... Battery mounted IC module, 20... Battery built-in card. .

Claims (3)

[Claims] (1) The upper electrode (2) and the lower electrode (3) are connected to the insulating layer (4).
), the connection electrodes (5) and (6) extending laterally from the respective electrodes (2) and (3) are bent downward and formed, A thin battery whose tip is placed at the same height as the lower surface of the lower electrode (3). (2) A battery-mounted IC module, characterized in that it is equipped with the thin battery according to claim (1). (3) A battery built-in card characterized by incorporating the module according to claim (2).