JPS5943724Y2 - collective electrolytic capacitor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a collective electrolytic capacitor used in power supply circuits such as amplifiers.

Generally, when conventional electrolytic capacitors are used as a group in a power supply circuit such as an amplifier, a spacer 2 made of rubber or plastic is placed at the center of four electrolytic capacitors 1, as shown in FIG. To install the surrounding area, bundle it with band 4. To install, attach one end of band 4 to chassis 3.
It is used by attaching it to etc.

In such a case, special shapes are required for the spacer 2 and the attachment band 4, and the bundling work is not easy.

In addition, the above-mentioned variations in the bundling work and the above-mentioned electrolytic capacitor 1
Due to variations in the diameter of the / yarn 3, etc., the positions of the screw holes 5 for mounting the band 4 do not match, and it is often difficult to tighten the screws. This method has drawbacks such as difficulty in aligning the terminals with each other at predetermined positions, making it difficult to connect the terminals with a rigid conductive plate or the like.

It is an object of the present invention to provide a collective electrolytic capacitor that eliminates the above-mentioned drawbacks, can be mounted on a chassis etc. in precisely the same position, and is easy to install.

An embodiment of the present invention will be described below with reference to figures.

FIG. 2 shows a collective electrolytic capacitor according to the present invention, and FIG. 3 shows a cross-sectional view thereof.

As shown in FIGS. 2 and 3, a collective electrolytic capacitor 6 according to the present invention has a resin case in which a plurality of (for example, four) cylindrical holes 8 are formed independently at predetermined positions in the same plane direction 7. 9
A capacitor element 10 is housed in each cylindrical hole 8, and an anode pull-out piece 11 and a cathode pull-out piece 12 of the capacitor element 10 are respectively connected to an anode terminal 14 and a cathode terminal 15 provided in a sealing body 13 made of resin or the like. It is obtained by connecting by welding or the like, impregnating the capacitor element 10 in an electrolytic solution 16, and sealing the opening with the sealing body 13.

For example, as shown in FIG. 4, the capacitor element 10 includes an anode foil 17 made of aluminum or the like to which an anode extension piece 11 is fixed in the width direction, and a cathode foil 18 made of aluminum or the like to which a cathode extension piece 12 is similarly fixed. They are stacked with a separator paper 19 in between and wound as shown in FIG.

An anode pull-out piece 11 and a cathode pull-out piece 12 are pulled out from one end of the capacitor element 10.

In addition, means 20 for attaching a plurality of resin teeth 9 to the flat surface having the terminal portion are formed in the bottom shape.

The attachment means 20 may be in the shape of a pad or a bolt.

When the collective electrolytic capacitor 6 according to the present invention configured as described above is used in a power supply circuit such as an amplifier, the sixth
As shown in the figure, it can be easily attached to the transformer 21 from the same side of the connector 73 or the like using screws or screws.

In addition, since multiple electrolytic capacitors are formed independently within the same resin tooth 9, it is easy to create electrolytic capacitors with different capacities by changing the electrolyte, the expansion ratio of the electrodes, the number of turns of the electrodes, etc. of each electrolytic capacitor. Can be combined.

Further, since the anode terminal 14 and the cathode terminal 15 are regulated by the sealing body 13, for example, the capacitor element 1
Even if 0 is changed, the anode pull-out piece 11 and the cathode pull-out piece 12 are simply connected to the sealing body 13, so there is no problem in positioning with respect to the connector 73, and conversely, between the terminals of the chassis 3 Even if there is a pinch or the orientation is changed, it is only necessary to change the terminal position of the sealing body, which has a practical effect.

In addition, since not only the capacitor itself is connected, but also the resin case body that houses the capacitor is fixed to the chassis, there is a risk that the connection between the capacitor and the string may be severed due to external force. few.

As explained above, the collective electrolytic capacitor according to the present invention has a plurality of electrolytic capacitors formed independently within the resin case, which has a means for attaching it to a shear, etc.
Installation work on the chassis etc. can be reduced, and wiring work etc. can also be made easier.

[Brief explanation of the drawing]

FIG. 1 shows a top view of a conventional electrolytic capacitor used in a collective type. Fig. 2 is a diagram showing the external appearance of the collective electrolytic capacitor according to the present invention, Fig. 3 is its cross-sectional view, Fig. 4 is a developed view of the capacitor element, Fig. 5 is a perspective view of the capacitor element, and Fig. 6 is FIG. 2 is a diagram showing a method of attaching a collective electrolytic capacitor according to the present invention to a chassis or the like.

Claims (1)

[Scope of utility model registration request] A resin case has a plurality of cylindrical holes independently formed in the same plane at predetermined positions, and each cylindrical hole is filled with a capacitor element in which an anode foil and a cathode foil are wound with separator paper in between. A sealing body is provided separately to connect the anode lead-out piece and the cathode lead-out piece of the capacitor element, and the opening of the cylindrical hole is sealed with the sealing body, thereby forming a plurality of electrolytic capacitors. A collective electrolytic capacitor characterized in that the plurality of capacitors are independently integrally formed in the same resin case, and a plurality of mounting means are formed on a plane having a terminal portion of the resin teeth.