Static converter, especially for an uninterruptible electrical power supply system
First Claim
1. A static converter, especially for an uninterruptible electrical power supply system, having a plurality of electronic power modules, each module comprising:
- a heat sink unit with a heat dissipation base-plate, made of a good heat-conducting metallic material, comprising a support face acting as a support for the electronic power components, and an opposite face equipped with cooling fins,a pair of parallel flanges, laterally fixed to the opposite edges of the base-plate in a perpendicular direction to the support face,a connecting plate having draw-in contacts electrically connected to the electronic components, the module being arranged in a parallelipipedic rack capable of cooperating in translation with a fixed connecting base by drawing the plate contacts, made of insulated material, into adjoining studs of the base,each flange of the module being provided with a longitudinal groove to guide the rack when draw-in takes place by sliding along a slide securedly united to the connecting base.
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Accused Products
Abstract
A converter comprises a plurality of modules each having a heat-sink unit with a base-plate made of a good heat-conducting metal material, acting as a support for the electronic components, a pair of parallel flanges laterally fixed to the opposite edges of the base-plate, and a rear plate for connection of the draw-in contacts capable of cooperating with the studs of a fixed connecting base. Error prevention means, formed by pins and orifices prevent any module connection error. The draw-in contacts are achieved by tulip-fingers or grips capable of being housed in six holes of the connection plate. The assembly forms a rack which can be actuated by a handle.
76 Citations
10 Claims
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1. A static converter, especially for an uninterruptible electrical power supply system, having a plurality of electronic power modules, each module comprising:
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a heat sink unit with a heat dissipation base-plate, made of a good heat-conducting metallic material, comprising a support face acting as a support for the electronic power components, and an opposite face equipped with cooling fins, a pair of parallel flanges, laterally fixed to the opposite edges of the base-plate in a perpendicular direction to the support face, a connecting plate having draw-in contacts electrically connected to the electronic components, the module being arranged in a parallelipipedic rack capable of cooperating in translation with a fixed connecting base by drawing the plate contacts, made of insulated material, into adjoining studs of the base, each flange of the module being provided with a longitudinal groove to guide the rack when draw-in takes place by sliding along a slide securedly united to the connecting base. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A static converter for an uninterruptible electrical power supply system, having a plurality of draw-in electronic modules, housed in a parallelipipedic cubicle and comprising:
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a rectifier-charger whose input is connected to an AC mains system, an inverter connected to the rectifier-charger output for DC/AC conversion, a battery bank arranged as a buffer to constitute a permanently available power store at the inverter input, a metal frame of the cubicle, associated with blanking walls parallel two by two to delimit a front panel, a rear panel, and two opposite side panels extending depthwise in the cubicle, a ventilation unit designed to provide forced circulation of the cooling air of the modules inside the cubicle, an inlet orifice designed to suck fresh air into the cubicle, an outlet orifice designed to discharge the heated air to the outside, the draw-in modules being accessible via a door of the front panel and being located above the ventilation unit comprising at least one fan, the modules and fans assembly extending over a fraction of the depth of the cubicle, in such a way as to arrange a rear compartment acting as housing for a transformer controlling the inverter, a main discharge orifice of the fan being directed towards the front panel to establish a first internal cooling air path after pressurization of the air contained in a front space situated between the modules and the front panel, and a secondary discharge orifice of the fan being located opposite the main orifice, to generate a second internal cooling air path towards the transformer, the dimension of the secondary orifice being smaller than that of the main orifice. - View Dependent Claims (9, 10)
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Specification