JP2006040775A - Combination structure of battery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combination structure of batteries wherein a used protection circuit board can be in an electrically insulating state to the batteries and its position can be held when a plurality of batteries are horizontally arranged. <P>SOLUTION: This combination structure of batteries comprises horizontally juxtaposed secondary batteries, a plus lead plate with which plus sides of the batteries are connected in common, a minus lead plate with which minus sides of the batteries are connected in common and extended to the plus sides along a side part of one of the two secondary batteries, a circuit board controlling the batteries provided over the plus poles of the batteries which is fixed to a tip end of the minus lead plate and the other end is fixed to the plus lead plate, and an insulating seal insulating the minus lead plate and the batteries. The circuit board and the plus lead plate are arranged with a space. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a battery combination structure when a plurality of secondary batteries are juxtaposed horizontally and a battery protection circuit is attached thereto.

Recently, mobile phone devices or terminal devices such as PDAs that have come to be used frequently have reached the point where many functions are added. For this reason, the capacity of the battery is insufficient, and therefore, a plurality of batteries are used to compensate for the insufficient capacity. In that case, depending on the structure of the electronic device, the thickness is increased in the thickness direction or increased in the plane direction. However, in the horizontal direction, it is desired to devise how to arrange the internal electronic circuit board with respect to the battery. That is, the substrate needs to be electrically insulated from the battery.
JP 2000-21374 A

  Accordingly, an object of the present invention is to provide a battery combination structure in which when a plurality of batteries are arranged in the horizontal direction, the protection circuit board used can be electrically insulated from the batteries and can be reliably held in position. Is.

  In order to solve the above-mentioned problem, a secondary battery horizontally juxtaposed, a positive lead plate commonly connected to the positive side of the battery, and a side part of the one secondary battery commonly connected to the negative side of the battery A negative lead plate extending to the positive side along the negative lead plate and a battery fixed to the tip of the negative lead plate and the other end fixed to the positive lead plate so as to straddle the positive electrode of the battery. Circuit board and an insulating seal that insulates the minus lead plate from the battery, and the circuit board is installed with a space between the plus lead plate and the space so that the protection circuit and the battery are electrically insulated in the horizontal direction. Can be arranged and can maintain level.

According to the first aspect, the protection circuit is spatially insulated from the battery, and the plurality of batteries can be accommodated in the battery pack while being kept horizontal.
According to claim 2, since the plus or minus lead plate is flattened and fixed to the electrode of the battery by spot welding, the battery itself is kept horizontal.
According to the third aspect, since the double-sided tape is an insulating seal, the lead plate does not move.
According to the fourth aspect of the present invention, it can be realized even if the lead plate is minus and plus is reversed.
According to the fifth aspect, since the plurality of batteries are pasted with the double-sided tape, the level of the batteries can be maintained.
Protrusions are provided on either side of the upper and lower lids of the battery pack, and the main body constitutes a fitting structure in which these protrusions are fitted. It can be securely installed inside an electronic device.

(Embodiment 1)
FIG. 1 is a perspective view showing an embodiment of the present invention, which will be described below.
1 and 2 are flat batteries, and two of these batteries are juxtaposed horizontally. A minus lead plate 3 is disposed on the side of one of the flat batteries 1 and 2. The end of the negative lead plate 3 is spot welded to the negative poles of the batteries 1 and 2. The side portion of the battery 1 and the minus lead plate 3 are bonded by an insulating seal 4 to fix them.

  The positive lead plate 5 is spot welded to the positive electrode side of the batteries 1 and 2, and the end of the positive lead plate 5 is electrically connected to the circuit of the rising circuit board 6. On the opposite side of the circuit board 6 where the plus lead plate 5 is attached to the circuit board 6, the minus lead plate 3 is attached and electrically connected.

  Therefore, the circuit board 6 is fixed in the space on the plus lead plate 5 and is therefore electrically insulated from the plus lead plate 5 by the space. Further, since the plus lead plate 5 and the minus lead plate 3 are formed in a flat plate shape, the connection between the two batteries is strengthened. In other words, even if a twisting force that causes the two batteries to be separated from each other is generated, relatively little influence is generated.

The perspective view of the combination structure of the battery concerning this invention. (Embodiment 1)

Explanation of symbols

1, 2 Battery 3 Negative lead plate 4 Insulation sheet 5 Positive lead plate 6 Circuit board

Claims (5)

  Horizontally juxtaposed secondary batteries, plus lead plates that commonly connect the plus side of the batteries, and the minus side of the battery are commonly connected and extended to the plus side along the side of the one secondary battery. A negative lead plate, a circuit board for controlling the battery, which is fixed to the leading end of the negative lead plate and the other end is fixed to the positive lead plate so as to straddle the positive electrode of the battery, and the negative lead plate A battery combination structure comprising: an insulating seal that insulates the battery and the circuit board is disposed with a space between the plus lead plate and the space.   2. The battery combination structure according to claim 1, wherein the minus lead plate and the plus lead plate are connected to the electrode of the battery by spot welding.   2. The battery combination structure according to claim 1, wherein the insulating seal is a so-called double-sided tape having adhesiveness on both sides.   Horizontally juxtaposed secondary battery, negative lead plate commonly connecting the negative side of this battery, and positive side of the battery connected in common and extended to the negative side along the side of the one secondary battery A positive lead plate, a circuit board for controlling the battery, which is fixed to the front end of the positive lead plate and the other end is fixed to the negative lead plate so as to straddle the negative electrode of the battery, and the positive lead plate A battery combination structure comprising an insulating seal that insulates the battery and the circuit board is disposed with a space between the minus lead plate and the space.   5. The battery combination structure according to claim 1, wherein the two batteries are bonded with a double-sided tape for holding them in a horizontal position.

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