JPH0334904Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electric double layer capacitor using an electric double layer. In particular, the present invention relates to an electric double layer capacitor in which a plurality of capacitor elements are connected in series.

Conventional technology This type of conventional electric double layer capacitor is a device that can store a large amount of electrical energy, and has recently been widely used in electronic equipment such as VTRs, especially as a backup device for volatile semiconductor memory in the event of a power outage. It's becoming like that. By the way, the withstand voltage of an electric double layer capacitor is approximately
The voltage is about 3V, and in order to handle the 5V driving voltage for semiconductor memory, two or three of them must be connected in series. As shown in FIGS. 2a and 2b, the configuration for this series connection is as shown in FIGS.
An insulating cylinder 2 shown in b is arranged, and the terminal 5 of the terminal plate 4 is passed through the through hole 3 provided in the insulating cylinder 2,
The electric double layer capacitor body 6 is laminated, and the spring plate 7 is
The finished product was made by stacking them and closing the opening.

Problems to be solved by the invention In the case of such a configuration, it is difficult to automate the assembly work using an automatic machine, and especially when combining each component automatically, the terminal plate 4 is attached to an insulating tube. It was not easy to penetrate through the through hole 3 provided at the bottom of 2. In this case, it is necessary to pass the terminal of the electrode plate with a terminal through a through hole provided in the insulating tube, and positioning is required to accurately insert the terminal into the through hole, which is not easy.

The purpose of the present invention is to facilitate assembly.

Means for Solving the Problems The present invention is intended to solve these problems, and includes an insulating tube with an annular thin section formed inside the bottom, and an electrode plate with a terminal attached to the thin section of the insulating tube. The terminal is passed through and the seal is completed together with the spring plate.

Function If such an insulating cylinder is used, since the thin part of the insulating cylinder has an annular structure, it is possible to penetrate the thin part with the terminal of the terminal-equipped electrode plate at any point on this thin part while breaking through the thin part. Therefore, positioning becomes extremely easy. In particular, since the inside of the insulating cylinder is made thin, the tip of the terminal of the terminal plate can be aligned with the groove in the thin wall, making positioning extremely easy, and the outside is flat, giving it a good appearance. .

Note that whether the shape of this thin portion is square, semicircular, or triangular, the function is exactly the same.

Embodiment An embodiment of the present invention will be described below. An electric double layer capacitor for 5.5V0.1F (using 3 pieces in series) was created as a completed product, and divided into two types: one completed using a conventional insulating tube, and the other completed using an insulating tube according to the present invention. . Conventional insulation tube (Fig. 3)
A through hole of 1.3 mm x 0.6 mm was drilled in a polypropylene insulating tube with an inner diameter of 11 mm and a wall thickness of 0.3 mm. On the other hand, as shown in FIGS. 1a and 1b, as an example of the present invention, an insulating cylinder 8 made of polypropylene of the same size as the conventional example (inner diameter φ11 mm, wall thickness 0.3 mm) has a width of 1.5 mm and a depth of 0.2 mm.
A recess 8a having a diameter of 2.5 mm was provided at a position 2.5 mm from the center.
As a result of assembly work using these insulating cylinders,
With conventional products, everything was done by hand, but with this invention, it has become possible to mechanize.

Effects of the invention As described above, according to the invention, assembly work, especially
The work of penetrating the terminal into the insulating tube can be mechanized, significantly improving productivity.

[Brief explanation of drawings]

1A and 1B are a plan view and a sectional view of an insulating tube of an electric double layer capacitor according to an embodiment of the present invention, FIGS. 2A and 2B are a perspective view and a sectional view of a conventional electric double layer capacitor, and FIG. Figures a and b are a plan view and a sectional view of a conventional insulating tube. 8... Insulating tube, 8a... Recessed portion (thin wall portion).

Claims (1)

[Scope of utility model registration request] An insulating cylinder having an annular thin-walled part inside the bottom is arranged in a case with a terminal that has a terminal at the bottom and the other end is an open end, and an electrode plate with a terminal is placed inside the insulating cylinder so that the thin-walled part is connected to the insulating cylinder. An electric double layer capacitor in which a terminal is arranged so as to pass through the terminal, and a plurality of electric double layer capacitor bodies are stacked and arranged on the terminal plate.