Aluminum electrolytic capacitor

Details Aluminum electrolytic capacitor Aluminum electrolytic capacitor

2000-02-24

2001-07-24

Reichard, Dean A. (Department: 2831)

Electricity: conductors and insulators

Boxes and housings

With electrical device

C174S064000, C174S135000, C248S056000, C403S370000, C361S517000

Reexamination Certificate

active

06265661

ABSTRACT:

FIELD OF THE INVENTION
The invention is directed to an aluminum-electrolyte capacitor, particularly for employment in capacitor batteries, that is installed in a metallic housing, and whereby the housing is held by a ring clamp screwed to a mounting plate.
BACKGROUND OF THE INVENTION
Ring clamp fastenings are known, for example, from the Siemens Matsushita Components Datenbuch 1997, “Aluminum-Electrolyte Capacitors”, pages 142 through 145.
Given these known ring clamp fastenings, the housing is fixed in the ring clamp with tension screws and nuts, and the ring clamp itself is then connected to a mounting plate with a screwed connection. Such a fastening of a capacitor to the housing jacket, however, is problematical because the wall thicknesses of the housing jackets are generally very low, and the material is composed of relatively soft aluminum.
SUMMARY OF THE INVENTION
An object of the present invention is to specify an aluminum-electrolyte capacitor of the species initially cited that is secured in mechanically stable fashion on a mounting plate without having significant tension forces acting on the housing.
This object is inventively achieved in that a conically fashioned part is arranged at the ring clamp, said part engaging into a bore attached to the mounting plate.
In an embodiment, the present invention provides an aluminum-electrolyte capacitor assembly that comprises an aluminum-electrolyte capacitor disposed in a metallic housing, the housing being accommodated in and held by a ring clamp, the ring clamp being attached to a mounting plate, the mounting plate comprising a bore for accommodating at least part of the housing, the ring clamp comprising a conically shaped extension that mateably engages the bore.
In an embodiment, the ring clamp is attached to the mounting plate by way of at least on screw.
In an embodiment, the conically shaped extension comprises at least one slot.
In an embodiment, the ring clamp is fabricated from an insulating material.
In an embodiment, the present invention further comprises a protective ring disposed in the bore and sandwiched between conically shaped extension and mounting plate.
In an embodiment, the protective ring is fabricated from plastic.
In an embodiment, the protective ring is conically shaped for receiving the conically shaped extension.
Other objects and advantages of the present invention will become apparent from reading the following detailed description and appended claims, and upon reference to the accompanying drawings.


REFERENCES:
patent: 3590137 (1971-06-01), Librandi
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patent: 4367053 (1983-01-01), Stratienko et al.
patent: 4471846 (1984-09-01), Mullenberg
patent: 4557621 (1985-12-01), Mullenberg
patent: 4561796 (1985-12-01), Hanaoka
patent: 5419650 (1995-05-01), Hoshino
patent: 5607224 (1997-03-01), Tobias et al.
patent: 6139215 (2000-10-01), Kiihne et al.
patent: 35 24 278 (1987-01-01), None
patent: 2 154 062 A (1985-01-01), None
patent: 21 63522A (1986-02-01), None
Brochure entitled: “Aluminium-Elektrolyt-Kondensatoren”, Siemens Matsushita Components, 1997. No month.

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