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Power converter module installment support structure and lifting arrangement

IP.com Disclosure Number: IPCOM000241903D
Publication Date: 2015-Jun-08
Document File: 5 page(s) / 126K

Publishing Venue

The IP.com Prior Art Database

Related People

Juha Hamari: INVENTOR [+3]

Abstract

This document discloses mechanical arrangement for installing or replacing a power module in a power converter. The disclosed arrangement is designed for a power converter where the heavy weight power module is located substantially above the cabinet floor level. Without the new solution the power module would be difficult to install or replace.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 52% of the total text.

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1.Abstract

This document discloses mechanical arrangement for installing or replacing a power module in a power converter. The disclosed arrangement is designed for a power converter where the heavy weight power module is located substantially above the cabinet floor level. Without the new solution the power module would be difficult to install or replace.


2.Background

Power conversion devices are usually built modularly, eg. the power conversion equipment comprising IGBTs, their control boards and DC intermediate capacitors are usually assembled in an enclosure which enables quick installment and also quick replacement in the case of a malfunction.

Power modules are usually heavy and they are commonly arranged at the bottom of the power conversion cabinet in order to make the replacement easier. In some cases the power modules have wheels on the bottom in order to make them easier to move around. Also it is known to use ramps in order to install a power module inside a power conversion cabinet eg. in the case that there is plinth in the cabinet and the floor of the room is below the floor of the power module cabinet.

Sometimes it is not possible to install the power module to the bottom of the power converter cabinet, which arises the problem how to make the installment of the power module easy.


3.New solution

According to the solution the railings for installing the power converter are embedded part of the power converter. When the railings are not used, they can at least partly be foldable inside the cabinet. This makes sure that the railings are always available when needed. When the railings are folded, the power conversion cabinet can be substantially enclosed by walls, doors or the like. When the railings are in the module installment position, the railings come outside from the cabinet enabling easy lifting of the module by utilizing a fork lift or pulley system for example.

Additionally there is a pulley system on the roof of the cabinet, which can be installed for the duration of the module changing operation. This is particularly handy feature if the power conversion cabinet is installed to a remote location where fork lift or such cannot access easy.

Part of the railings (or separate railing) go inside the cabinet so that at least partially the power module weight is supported by the railings even when the module is installed to the cabinet.

Support railings are attached to the cabinet by hinges. The railings have foldable support beams in order to support better the weight of the module. The support beam is hinged by

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Power converter module installment support structure and lifting arrangement

Date: June 8, 2015


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the pivoting point and there is also one hinge in the middle of the beam. These hinges enable the support beam to fold under the railing with a lo...