Electrical housing having cooling and sound-absorbing means

摘要

An apparatus for enclosing a medium and/or high voltage unit connectable to an electric power system. The unit includes one or a plurality of electrical components and generates heat as a by-product during operation. The apparatus includes a housing including a main chamber housing a seat for holding the unit. The main chamber is arranged to house the unit. The housing includes at least one gas exit opening at an upper part of the housing and at least one gas entry opening. The housing includes a sound-absorptive gas exit chamber provided with the at least one gas exit opening. The housing includes a sound-absorptive gas entry chamber provided with the at least one gas entry opening. A first heat convection path is provided inside the housing between the at least one gas entry opening and the at least one gas exit opening, via the gas entry chamber, via the main chamber and via the gas exit chamber, in order to provide cooling. Each of the gas exit chamber and the gas entry chamber houses at least one sound-absorbing member for absorbing sound produced by the unit during operation. At least one of the gas exit chamber and the gas entry chamber has at least one heat conducting wall and at least one free space provided between the at least one sound-absorbing member and said wall such that the first heat convection path is provided inside the housing between the at least one gas entry opening and the at least one gas exit opening via the at least one free space.

主权项

1. An apparatus for enclosing at least one medium and/or high voltage unit connectable to an electric power system, each unit comprising one or a plurality of electrical components and generating heat as a by-product during operation, wherein the apparatus comprises:
a housing which comprises:
a main chamber housing a seat for holding the unit, the main chamber being arranged to house the unit;at least one gas exit opening at an upper part of the housing and at least one gas entry opening;a sound-absorptive gas exit chamber provided with the at least one gas exit opening; anda sound-absorptive gas entry chamber provided with the at least one gas entry opening, wherein a first heat convection path is provided inside the housing between the at least one gas entry opening and the at least one gas exit opening, via the gas entry chamber, via the main chamber and via the gas exit chamber, in order to provide cooling, wherein each of the gas exit chamber and the gas entry chamber houses at least one sound-absorbing member made at least partially of a sound-absorbing material for absorbing sound produced by the unit during operation, wherein at least one of the gas exit chamber and the gas entry chamber has at least one heat conducting wall and at least one free space provided between the at least one sound-absorbing member and said heat conducting wall such that the first heat convection path is provided inside the housing between the at least one gas entry opening and the at least one gas exit opening via the at least one free space, and wherein the heat conducting wall heats the gas or gas mixture flowing in and passing through the at least one free space.