JPH0487976A - Packaging device for electrolytic condenser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a packaging device for electrolytic capacitors used in general electronic equipment.

2. Description of the Related Art As a conventional packaging device for this type of electrolytic capacitor, a packaging device as shown in FIG. 4 has been used. That is, FIG. 4 shows a state in which a plurality of electrolytic capacitors 2 are stored and packaged in a corrugated pole box 1 with one end open.As shown in FIG. A plurality of electrolytic capacitors 2 are housed in a compartment 4 divided by a member 3, and an opening at one end of the cardboard box 1 is closed with a flap 5.

Problems to be Solved by the Invention In general, electrolytic capacitors undergo aging by applying a voltage between the anode terminal and the cathode terminal of the electrolytic capacitor in order to stabilize their characteristics during the manufacturing process. The voltage stored in the electrolytic capacitor is discharged by shorting the anode and cathode terminals of the capacitor with a resistor, etc. The completed electrolytic capacitor is packaged and shipped, but this electrolytic capacitor has the property of restoring voltage, and over time a voltage is generated between the anode terminal and the cathode terminal of the electrolytic capacitor.

The voltage that an electrolytic capacitor recovers from when fishing on a boat is high (it is said that about 10% of the voltage applied during aging will recover.For example, if an electrolytic capacitor taken out from a packaging device is attached to a set, this recovery The voltage can destroy other parts, and if a person touches the anode and cathode terminals of an electrolytic capacitor, they may get an electric shock.
When investigating with a 330V, DC 260μF electrolytic capacitor, the results shown in Figure 5 were obtained.
As is clear from the figure, since the voltage recovery phenomenon continues for a long time, reliable measures cannot be taken against temporary discharge. In this case, it is economical and reliable to take measures using packaging equipment that stores electrolytic capacitors for a long period of time, but there is a problem in that conventional packaging equipment cannot be used as a countermeasure.

The present invention solves these problems by keeping the electrolytic capacitor in a discharge state even if the voltage returns to normal, so that the anode and cathode terminals of the electrolytic capacitor are always short-circuited. An object of the present invention is to provide a packaging device for electrolytic capacitors that can be stored in a state in which the electrolytic capacitors are stored in an exposed state.

Means for Solving the Problems In order to achieve the above objects, the present invention provides, as a first means, an electrolytic capacitor having an anode terminal and a cathode terminal on one end surface, and a bottomed cylindrical conductive capacitor with an open end. an air cap, a terminal protection portion of the electrolytic capacitor is configured on the bottom side of the conductive air cap, and the electrolytic capacitor is connected to the anode terminal and the cathode terminal of one end face through an opening at one end of the conductive air cap. Place the electrolytic capacitor in the conductive air cap so that it is located on the terminal protection side of the air cap, and then insert multiple conductive air caps containing electrolytic capacitors into the cardboard box through the opening at one end of the box. The container is stored in a cardboard box with one end of the opening closed with a flap.

Further, as a second means for achieving the above object, the present invention includes an electrolytic capacitor having an anode terminal and a cathode terminal on one end surface, and a bottomed cylindrical air cap with one end open. A terminal protection part of the electrolytic capacitor is formed on the bottom side of the air cap, and a conductive film such as a conductive air cap sheet or a conductive metal foil such as aluminum is inserted through the opening at one end of the air cap of the bracket.
Alternatively, a conductive member such as a board coated with conductive paint on the surface of a cardboard box is housed in the air cap so as to be located on the terminal protection side of the air cap, and then the electrolytic capacitor is inserted through the opening at one end of the air cap. is housed in the air cap so that the anode terminal and cathode terminal on one end surface are located on the terminal protection side of the air cap, and the anode terminal and the cathode terminal of this electrolytic capacitor are connected to the conductive engineering cap sheet. A plurality of air caps containing electrolytic capacitors are placed in contact with a conductive material such as a conductive film, a conductive metal foil such as aluminum, or a board coated with conductive paint on the surface of a cardboard box. The container is housed in a cardboard box through an opening at one end, and the opening at one end of the cardboard box is closed with a flap.

According to the first or second means of the present invention described above, since the anode terminal and the cathode terminal of the electrolytic capacitor are short-circuited by the conductive air cap or the conductive member, the voltage recovery of the electrolytic capacitor is prevented. This eliminates the problem of voltage being generated between both terminals due to this phenomenon, and as a result, even when an electrolytic capacitor is incorporated into a set, there is no possibility of destroying other parts or causing electric shock.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. FIG. 1 shows an embodiment (first means) of the present invention, in which 11 is an electrolytic capacitor having an anode terminal 12 and a cathode terminal 13 on one end surface, and this electrolytic capacitor 11 has an open end. It is housed in a conductive air cap 14 having a cylindrical shape with a bottom. A terminal protection portion 15 of an electrolytic capacitor is formed on the bottom side of the conductive air cap 14. Further, the electrolytic capacitor 11 is conductive so that the anode terminal 12 and the cathode terminal 13 on one end surface of the electrolytic capacitor 11 are located on the terminal protection portion 15 side of the conductive air cap 14 from the one end opening of the conductive air cap 14. It is stored in the air cap 14.

When packaging, as shown in FIG. 2, a plurality of conductive air caps 14 containing electrolytic capacitors 11 are stored in the cardboard box 16 through the opening at one end of the cardboard box 16, and the cardboard box 16 is placed between the brackets. The packaging is completed by closing the opening at one end with the flap 17.

FIG. 3 shows another embodiment (second means) of the present invention, and the same parts as those of the embodiment of the present invention shown in FIG. 1 will be described with the same reference numerals. In FIG. 3, reference numeral 11 denotes an electrolytic capacitor having an anode terminal 12 and a cathode terminal 13 on one end surface, and this electrolytic capacitor 11 is housed in a bottomed cylindrical air cap 14a with an open end. A terminal protection portion 15 of the electrolytic capacitor is formed on the bottom side of the air cap 14a. Reference numeral 18 denotes a conductive member such as a conductive film such as a conductive air cap sheet, a conductive metal foil such as aluminum, or a board coated with conductive paint on the surface of cardboard. It is housed in the air cap 14a so as to be located on the terminal protection portion 15 side of the cap 14a. The electrolytic capacitor 11 is housed in the air cap 14a such that the anode terminal 12 and cathode terminal 13 on one end surface of the electrolytic capacitor 11 are located on the terminal protection portion 15 side of the air cap 14a from the opening at one end of the air cap 14a. However, in this case, the anode terminal 12 and cathode terminal 13 of the electrolytic capacitor 11 are made of a conductive film such as the conductive air cap sheet, a conductive metal foil such as aluminum, or a conductive paint coated on the surface of a cardboard. It comes into contact with a conductive member 18 such as a coated plate.

In the case of packaging, as shown in FIG. Packaging is completed by closing the opening with the flap 17.

Effects of the Invention As described above, the electrolytic capacitor packaging device of the present invention stores an electrolytic capacitor in a conductive air cap such that the anode terminal and the cathode terminal on one end surface are located on the terminal protection side of the conductive air cap. Alternatively, since the anode and cathode terminals of the electrolytic capacitor are housed in the air cap so that they are in contact with the conductive member inside the air cap, there is a conductive air cap between the anode and cathode terminals of the electrolytic capacitor. Alternatively, the electrolytic capacitor becomes short-circuited by the conductive member, and as a result, the problem of voltage being generated between both terminals due to the phenomenon of voltage recovery of the electrolytic capacitor is eliminated.

Therefore, in the electrolytic capacitor using the packaging device of the present invention, no voltage is generated between the anode terminal and the cathode terminal of the electrolytic capacitor, so even if the electrolytic capacitor is attached to the set, other parts will not be destroyed. Further, even if a person touches between the anode terminal and the cathode terminal of the electrolytic capacitor, there is no possibility of electric shock, and as a result, a highly safe electrolytic capacitor can be provided. Also, in terms of cost, compared to those using conductive air caps,
It is 1/10 cheaper to use a conductive member.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a bottomed cylindrical conductive air cap in an electrolytic capacitor packaging device according to an embodiment of the present invention, FIG. 2 is a partially cutaway front view of the same packaging device, and FIG. 3 is the same. A schematic diagram showing a bottomed cylindrical air cap with an internal conductive member in a packaging device. Fig. 4 is a partially cutaway front view showing a conventional packaging device. Fig. 5 shows a voltage recovery state of a 330 V 260 μF electrolytic capacitor. This is the graph we investigated. 11... Electrolytic capacitor, 12... Anode terminal, 13... Cathode terminal, 14...
Conductive air cap, 14a... Air cap, 15... Terminal protection part, 16...
Cardboard box, 17...Flap, 18...
...Conductive member.

Claims (2)

[Claims] (1) It has an electrolytic capacitor having an anode terminal and a cathode terminal on one end surface, and a bottomed cylindrical conductive air cap with an open end, and the bottom side of the conductive air cap protects the terminals of the electrolytic capacitor. and insert the electrolytic capacitor into the conductive air cap through the opening at one end of the conductive air cap such that the anode terminal and the cathode terminal on one end face are located on the terminal protection side of the conductive air cap. A packaging device for electrolytic capacitors, in which a plurality of conductive air caps containing the electrolytic capacitors are stored in the cardboard box through an opening at one end of the cardboard box, and the opening at one end of the cardboard box is closed with a flap. . (2) An electrolytic capacitor having an anode terminal and a cathode terminal on one end surface, and a bottomed cylindrical air cap with an open end, and a terminal protection portion of the electrolytic capacitor is formed on the bottom side of the air cap. , and from the opening at one end of this air cap, a conductive film such as a conductive air cap sheet or a conductive metal foil such as aluminum,
Alternatively, a conductive member such as a board coated with conductive paint on the surface of a cardboard box is housed in the air cap so as to be located on the terminal protection side of the air cap, and then the electrolytic capacitor is inserted through the opening at one end of the air cap. The electrolytic capacitor is housed in an air cap such that the anode terminal and cathode terminal on one end face are located on the terminal protection side of the air cap, and the anode terminal and cathode terminal of this electrolytic capacitor are connected to a conductive material such as the conductive air cap sheet. Contact a conductive member such as a film or conductive metal foil such as aluminum, or a board coated with conductive paint on the surface of a cardboard box, and then attach multiple air caps containing these electrolytic capacitors to one end of the cardboard box. A packaging device for an electrolytic capacitor, which is stored in a cardboard box through the opening, and the opening at one end of the cardboard box is closed with a flap.