JP2665865B2 - Mounting method of column capacitor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a columnar capacitor on an electronic circuit board.

[0002]

2. Description of the Related Art In general, there is known an electrolytic capacitor having a columnar outer shape and a lead portion protruding from the columnar end. When such a capacitor is mounted on an electronic circuit board, its longitudinal direction is generally perpendicular to the plate surface of the electronic circuit board.
Here, mounting means that the capacitor is electrically connected to the electronic circuit board and mechanically attached by soldering a lead portion of the capacitor to a printed pattern of the electronic circuit board.

When the longitudinal direction of the capacitor is perpendicular to the surface of the electronic circuit board, the following problem occurs. It has been difficult to use the electronic device having a height limitation, and an expensive flat capacitor has sometimes been used. An electronic device having the capacitor mounted on an electronic circuit board is subjected to a great amount of stress on a lead portion of the capacitor due to continuous rolling and mechanical shock received during transportation or the like. May be damaged, or the peripheral pattern of the mounted electronic circuit board may be peeled off. In order to cope with this, conventionally, the mounted capacitor is bonded and fixed to an electronic circuit board with an adhesive.

However, since the above-mentioned capacitor is relatively heavy and the distance from the electronic circuit board to the center of gravity of the capacitor is relatively long when the capacitor is mounted, it is stable against the mechanical shock and the like. The degree becomes lower. For this reason, in order to withstand the mechanical shock, it must be firmly fixed using the adhesive. There is a drawback that a large amount of adhesive is required to firmly fix in this way. In addition, when the adhesive is applied manually, the amount of the adhesive, the application position of the adhesive, and the like may vary, for example, when the amount of the adhesive is small, the capacitor is peeled from the electronic circuit board. There was also a disadvantage that the reliability was lowered, for example. It is conceivable to provide a fixing device for fixing the above-described capacitor on the electronic circuit board in order to eliminate the drawbacks when the fixing is performed by using the adhesive as described above. Is small, it is difficult to provide a hole for fixing the capacitor in addition to the hole for inserting the lead of the capacitor in the electronic circuit board.

In order to solve the above problem, it is conceivable to arrange the columnar capacitors so that the longitudinal direction of the columnar capacitors is substantially parallel to the plate surface of the electronic circuit board.

[0006]

However, when the columnar capacitors are arranged such that the longitudinal direction of the columnar capacitors is substantially parallel to the plate surface of the electronic circuit board as described above, the capacitors are separated by another solder tank. It becomes difficult to mount with components, and the working efficiency is greatly reduced. The present invention eliminates the above-mentioned drawbacks and makes it easy to mount the columnar capacitor together with other electronic components even if the columnar capacitor is arranged so that the longitudinal direction of the columnar capacitor is substantially parallel to the plate surface of the electronic circuit board. It is an object of the present invention to provide a method for mounting a columnar capacitor which can improve the working efficiency.

[0007]

In order to solve the above-mentioned problems, a method of mounting a columnar capacitor according to the present invention is provided so that the columnar capacitor to be mounted on an electronic circuit board is substantially aligned with the capacitor when the columnar capacitor is mounted. Providing a crevice on the electronic circuit board, and connecting a printed pattern to which a lead portion of the capacitor is to be connected at a place where the lead portion of the capacitor is to be connected to a place other than the place where the electronic circuit board is to be the cleaved board. A plurality of jumper wires are arranged on one edge side of the split board, and thereafter, the longitudinal direction of the capacitor mounted on the split board is made substantially parallel to the plate surface of the electronic circuit board. In order to fix the capacitor in the tilted state to the electronic circuit board, fix the capacitor to the electronic circuit board. The one in which the features.

[0008]

In the mounting method as described above, the electronic circuit board is divided along the split in a state where the split is provided on the electronic circuit board and the jumper wire is provided, and the split board is formed. I do. In this state, the capacitor is tilted with the vicinity of the jumper wire as a center axis, and the tilted capacitor is fixed to the electronic circuit board by the fixing means. In this state, the distance between the electronic circuit board and the center of gravity of the capacitor is shorter than in the case where the longitudinal direction of the capacitor is perpendicular to the plate surface of the electronic circuit board, and the mechanical shock and the like described above. The stability against is increased. Further, it can also be used for electronic devices having height restrictions.

[0009]

1 and 2 show an embodiment of the present invention.
Will be described. 1 and 2, reference numeral 1 denotes a well-known electrolytic capacitor having a columnar outer shape, and a lead portion protrudes from one end surface of the columnar shape. Reference numeral 2 denotes an electronic circuit board, and a crease 3 is provided along the capacitor 1 when the capacitor 1 is mounted on the electronic circuit board 2 as shown in FIGS. Reference numeral 4 denotes a jumper wire, and a printed pattern 7 to be connected to a lead portion of the capacitor 1 at a place 6 to be a split board 5 surrounded by the split 3 is formed by a split board 5 of the electronic circuit board 2.
The split substrate 5 is connected to a portion excluding the portion 6, and the split substrate 5 is disposed on one edge side of the portion 6. The capacitor 1 and the jumper wire 4 are mounted together with other electronic components by soldering together with a solder bath as is well known.

FIGS. 1A and 2 show a state in which a split 3 is provided on the electronic circuit board 2, a jumper wire 4 is provided, and the capacitor 1 is mounted. In this state, the electronic circuit board 1 is split along the cut 3 to form the split board 5. Then, the capacitor 1 is tilted toward the jumper wire 4 as shown by an arrow in FIG. 1 (b), and one place is fixed to the electronic circuit board 2 with an adhesive as far as possible from the split board 5 of the tilted capacitor 1. I do.

In the above-described embodiment, the part 6 to be the split substrate 5
Is provided substantially at the center of the electronic circuit board 2, but FIGS.
As shown in the figure, a portion 6 serving as a split board 5 may be provided at an end of the electronic circuit board 2. In this case, the capacitor 1
Can be arranged below the electronic circuit board 2 as shown in FIG. In order to fix the capacitor 1 in this state to the electronic circuit board 2, instead of the above-mentioned adhesive, a tie band or the like is used, and the capacitor 1 is appropriately fixed to the electronic circuit board 2 by the tie band or the like. To the member. 3 and 4, the same reference numerals as those in FIGS. 1 and 2 indicate the same components.

With the configuration as shown in FIG. 1B or FIG. 3B, when the columnar capacitor 1 is fixed to the electronic circuit board 2, the plate surface of the electronic circuit board 2 and the longitudinal Since the directions are substantially parallel, it can be used even in an electronic device having a limited height. Also, since the distance from the electronic circuit board 2 to the center of gravity of the capacitor 1 is relatively short, it can be used for the mechanical shock or the like. Therefore, the capacitor 1 can be sufficiently fixed to the electronic circuit board 2 with a small amount of adhesive.

[0013]

As described above, according to the present invention, when mounting the columnar capacitor 1 so as to be substantially parallel to the surface of the electronic circuit board 2, the capacitor 1 is soldered together with other electronic components. The tank can be mounted on the electronic circuit board 2 and the work efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view for explaining an embodiment of the present invention.

FIG. 2 is a view for explaining one embodiment of the present invention, and is a plan view of FIG. 1 (a).

FIG. 3 is a perspective view for explaining another embodiment of the present invention.

FIG. 4 is a view for explaining another embodiment of the present invention, and is a plan view of FIG. 3 (a).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Capacitor 2 Electronic circuit board 30% 4 Jumper wire 50% board 60% board 7 Print pattern

Claims (1)

(57) [Claims] 1. A method for mounting a columnar capacitor, comprising: providing a split on the electronic circuit board so as to substantially follow the capacitor when the columnar capacitor to be mounted on the electronic circuit board is mounted; A plurality of jumper wires become the split board so that a printed pattern to be connected to the lead portion of the capacitor at the place where the split board is to be connected is connected to a place other than the place where the split board of the electronic circuit board is formed. However, in order to make the longitudinal direction of the capacitor mounted on the split board approximately parallel to the board surface of the electronic circuit board, the vicinity of the jumper wire is turned down as a center axis of the rotation. A method for mounting a columnar capacitor, comprising fixing the capacitor in the collapsed state to the electronic circuit board by fixing means.