Method and apparatus for mechanical load reduction on the electrical terminals of a capacitor

a technology of capacitors and electrical terminals, applied in the field of capacitors, can solve the problems of inefficient use of packaging space, inconvenient assembly of wires, and stiff laminated busbars in comparison to previous conductors, and achieve the effect of reducing mechanical stresses and/or reducing capacitors

Active Publication Date: 2015-10-29
GE GLOBAL SOURCING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a technical solution to reduce mechanical stress on electrical terminals of a capacitor in a power distribution system. The solution involves mounting the capacitor to a support with a plurality of deflectable tabs and creating an electrical connection between the capacitor and a busbar by fastening the electrical terminals of the capacitor to the busbar. This design allows for flexibility in the height of the capacitors, which can vary due to manufacturing tolerances. The deflectable tabs on the support help alleviate stresses on the capacitor and on the busbar, reducing mechanical load and ensuring reliable performance of the power distribution system.

Problems solved by technology

In systems with high electrical currents, the size of cables can be large which makes assembly of the wires difficult, time consuming, and inefficient in its use of available packaging space.
However, a laminated busbar with multiple layers is stiff in comparison to the previous conductors.

Method used

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  • Method and apparatus for mechanical load reduction on the electrical terminals of a capacitor
  • Method and apparatus for mechanical load reduction on the electrical terminals of a capacitor
  • Method and apparatus for mechanical load reduction on the electrical terminals of a capacitor

Examples

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Embodiment Construction

[0032]Reference will be made below in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals used throughout the drawings refer to the same or like parts.

[0033]Turning now to FIGS. 4-7, embodiments of the invention relate to an apparatus 100 that reduces the mechanical load / stress on the electrical terminals of a capacitor. As used herein, “capacitor” means any passive device used to store an electric charge, consisting of one or more pairs of conductors separated by an insulator, including, but not limited to ultracapacitors, supercapacitors, and hybrid / asymmetric capacitors. As shown therein, the apparatus 100 includes a busbar 110 (which may be, for example, a laminated busbar), one or more capacitors 112 (in the embodiment shown in FIGS. 4-7, plural capacitors are shown) each having a mounting foot and a pair of electrical terminals 113, and a support (e.g., a plate 114). Th...

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PUM

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Abstract

In an embodiment, an apparatus for reducing the mechanical load on the electrical terminals of a capacitor includes a plate having a planar body and one or more deflectable tabs connected to the planar body, one or more capacitors respectively mounted to the plate via the one or more deflectable tabs, and a busbar electrically connected to the one or more capacitors such that the one or more capacitors are arranged intermediate the plate and the busbar. The deflectable tabs are configured to support the capacitors, and to move towards and away from the planar body for accommodating size variances in the capacitors relative to a fixed spacing between the busbar and an enclosure.

Description

FIELD OF THE INVENTION[0001]Embodiments of the invention relate generally to capacitors. Other embodiments relate to a method and apparatus for reducing mechanical load on a capacitor.BACKGROUND OF THE INVENTION[0002]A capacitor is a passive two-terminal electrical component used to store energy electrostatically in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors (plates) separated by a dielectric (i.e., insulator). The conductors can be thin films of metal, aluminum foil or disks, etc. The ‘nonconducting’ dielectric acts to increase the capacitor's charge capacity. A dielectric can be glass, ceramic, plastic film, air, paper, mica, etc. Capacitors are widely used as parts of electrical circuits in many common electrical devices and function to store energy in the form of an electrostatic field between its plates.[0003]A capacitor has two sets of connection features: electrical and mechanical. The mechanical set is...

Claims

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Application Information

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IPC IPC(8): H05K1/02H05K3/30H05K5/00H01G2/06H05K1/18
CPCH05K1/028H01G2/065H05K1/181H05K2201/0397H05K3/30H05K2201/10015H05K2201/10272H05K5/0026H01G2/02H01G2/106H01G4/228H05K7/14329H05K7/1432
InventorKRIVONAK, ANDREW LOUISJANSEN, PATRICK LEEMURPHY, MARK ALLENDOLSKI, FRANK
OwnerGE GLOBAL SOURCING LLC