Cabinet with pressure relief means
AssigneeVestas Wind Systems A/S
InventorsKenneth G. Hansen, Hans Christian Bisgaard-Clausen
Life of this patent
Estimating the term…
Abstract
A cabinet comprising an outer wall which encapsulates an internal space comprising electronic components, the outer wall having a rupture line forming a release wall portion which by rupturing of the rupture line in response to an increased pressure in the internal space can be released and thereby define an opening forming arc-vent for the internal space. To protect against penetration of objects of a predetermined size into the electronic components, the cabinet further comprises a ventilation-open inner lining arranged in the internal space to cover the opening. If arcing should occur, the increased pressure may rupture the line and the opening will allow venting. In this situation, the inner lining prevents against penetration.
Claims20
A cabinet comprising:
- an outer wall encapsulating an internal space dimensioned to receive electronic components, the outer wall having a rupture line forming a release wall portion, wherein rupturing of the rupture line in response to an increased pressure in the internal space causes the release wall portion to be released and thereby defines an opening forming an arc-vent for the internal space;
- and
- a ventilation-open inner lining arranged in the internal space and exposed at the opening when the release wall portion is released, wherein the ventilation-open inner lining is dimensioned to prevent entry of objects through the opening into the internal space.
A wind turbine comprising:
- one or more electronic components;
- and
- a cabinet comprising:
- an outer wall encapsulating an internal space, wherein the one or more electronic components are disposed within the internal space, the outer wall having a rupture line forming a release wall portion, wherein rupturing of the rupture line in response to an increased pressure in the internal space causes the release wall portion to be released and thereby defines an opening forming an arc-vent for the internal space;
- and
- a ventilation-open inner lining arranged in the internal space and exposed at the opening when the release wall portion is released, wherein the ventilation-open inner lining is dimensioned to prevent entry of objects through the opening into the internal space.
A method of constructing a cabinet capable of arc venting, the method comprising:
- forming an outer wall that encapsulates an internal space dimensioned to receive electronic components, wherein forming the outer wall comprises forming a release wall portion that is defined by a rupture line configured to rupture responsive to an increased pressure in the internal space, wherein the release wall portion is configured to release responsive to the rupture to form an arc-vent for the internal space;
- and
- arranging a ventilation-open inner lining in the internal space such that the ventilation-open inner lining is exposed at the arc-vent when the release wall portion is released, wherein the ventilation-open inner lining is dimensioned to prevent entry of objects through the arc-vent into the internal space.
Dependencies are inferred from the claim text.