FORM 2
THE PATENTS ACT, 1970 (39 of 1970)
&
THE PATENS RULES, 2003
PROVISIONAL SPECIFICATION
[See section 10, Rule 13]
BUSBAR SUPPORTING SYSTEM;
LARSEN & TOUBRO LIMITED, A COMPANY INCORPORATED UNDER THE COMPANIES ACT, 1956, WHOSE ADDRESS IS L&T HOUSE, BALLARD ESTATE, MUMBAI - 400 001, MAHARASHTRA, INDIA.
THE FOLLOWING SPECIFICATION DESCRIBES THE INVENTION.
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FIELD OF INVENTION
The present invention relates to a supporting system and most particularly to the bus bar support supporting system.
PRIOR ART
German Patent Reference DE 86 09 413 U1 teaches a bus bar holder. With this known bus bar holder, several bus bar receivers are arranged in a supporting lower element, widths of the bar receivers can be adapted to different widths of bus bars by using an adapter element, so that the bus bars can be held laterally immovably and fixed in place by a top element. The adapter elements lockingly engage with spring legs in a continuous groove cut into the upper bottom area of the bus bar receiver in the longitudinal direction and are maintained therein displaceable in the longitudinal direction, wherein they engage counter-tooth arrangements on the contact surface of the lower element with tooth arrangements.
A bus bar holder also disclosed in US patent No. US6672889. The bus bar holder of this patent has at least one bus bar receiver formed in a support element, with a width that can be varied for receiving bus bars of different cross sections by means of an adapter element, which can be plugged or locked in a holding structure with a matched and complementary holding structure in a bottom area. There are a variety of adaptations for adapting the bus bar receiver in the depth direction, because a separate spacer is provided, which can be removably attached on the bottom area of the bus bar receiver and which has a free space in the area of the holding structure, through which the holding structure is accessible for inserting the adapter element.
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However, the pitch of the bus bar cannot be changed to meet the requirement of different pitch to suit the application needs. Therefore specific mould require for each different arrangement.
Moreover, the applications e.g. the fault level up to which the component can be used for supporting the bus bar is limited by the mechanical strength of the insulating material in transverse axis. Some of these designs require use of two components. Further, uses additional means for holding the insulating support on the metallic bracket. This necessitates additional components and extra efforts during manufacturing and assembling.
DETAILED DESCRIPTION OF THE DRAWINGS
Fig 1 shows a top, side and front view of a bus bar supporting system according to the present invention.
Fig 2 shows a bracket according to the present invention
DESCRIPTION OF THE PRESENT INVENTION
An objective of the present invention is to provide a bus bar overcome the shortcomings of the prior arts.
This invention relates to a bus bar support. A support for an electrical bus bar, made of insulating material, has a recess for holding a bus bar. The insulating materials used are generally a thermo-plastic resin. While these materials exhibit good insulating properties, their mechanical strength is often insufficient to withstand the thermal and mechanical stresses. The support/s are positioned transverse to the bus bar axis at regular interval, to avoid the risk of short circuit.
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The bracket (6) is placed as designed at predetermined locations. The support (Fig 1) is engaged in the bracket (6). The bus bars (1) are fixed in the support by inserting proper hardware such as screw in the cavity (3) the bus bar (1). Since the support is located in the cut portion of the bracket (6) its movement is restricted in transverse axis to axis of bus bar (1).
The pitch of the bus bar supporting system can be changed in the new design to meet the requirement of different pitch to suit the application needs. Since the support is not a composite one of the bracket.
The new support assy. Makes use of the mechanical properties of the metallic bracket in transverse axis. Hence can be used for a higher fault level application without the use of excessive insulating material.
The new support doesn't need additional components for fixing it on the metallic bracket. Hence easier to manufacture and assemble.
Dated this 31st day of October, 2005.

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