Noise reduction hood for an electronic system enclosure
First Claim
1. A noise reduction hood for an electronic system enclosure, the enclosure having an aperture that is adapted to receive air therethrough, the hood comprising:
- a base that is constructed and arranged to be supported on the enclosure, the base including a first end wall with an inlet, a second end wall with an outlet and a side wall connecting the first and second end walls, the base having an air duct that is adapted to pass air therethrough in a first direction substantially perpendicular to the first and second end walls from the inlet to the outlet, the inlet adapted to be positioned adjacent the aperture when the base is supported on the enclosure, the base having a height extending in the first direction, the first end wall being spaced from the second end wall by the height of the base; and
at least one noise reduction panel mounted on the base between the first and second end walls, the at least one noise reduction panel extending across the air duct to form a plurality of acoustical flow passages extending through the base along axes that are parallel to the first direction, the at least one noise reduction panel having a length in the first direction that is substantially equal to the height of the base, the air to be passed through the acoustical flow passages to attenuate acoustic noise emanating from the enclosure.
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Accused Products
Abstract
A noise reduction hood for attenuating the acoustic noise of cooling fans emanating from an electronic enclosure. The hood is comprised of a base that is constructed and arranged to be supported on the enclosure. The base has an air duct that is adapted to pass air therethrough in a first direction, and includes at least one noise reduction panel disposed in the air duct to attenuate acoustic noise emanating from the enclosure. In one embodiment, the noise reduction panel divides the air duct into a plurality of acoustical flow passages extending through the base. In another embodiment, the hood includes a cover, which may be detachable, that is adapted to divert the air from the first direction to a second direction. In a further embodiment, the hood includes a rim extending from the base for surrounding a portion of the enclosure to secure the hood to the enclosure. The hood may include a plurality of interlocking panels that are arranged in a grid pattern to form an array of acoustical flow passages.
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Citations
36 Claims
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1. A noise reduction hood for an electronic system enclosure, the enclosure having an aperture that is adapted to receive air therethrough, the hood comprising:
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a base that is constructed and arranged to be supported on the enclosure, the base including a first end wall with an inlet, a second end wall with an outlet and a side wall connecting the first and second end walls, the base having an air duct that is adapted to pass air therethrough in a first direction substantially perpendicular to the first and second end walls from the inlet to the outlet, the inlet adapted to be positioned adjacent the aperture when the base is supported on the enclosure, the base having a height extending in the first direction, the first end wall being spaced from the second end wall by the height of the base; and at least one noise reduction panel mounted on the base between the first and second end walls, the at least one noise reduction panel extending across the air duct to form a plurality of acoustical flow passages extending through the base along axes that are parallel to the first direction, the at least one noise reduction panel having a length in the first direction that is substantially equal to the height of the base, the air to be passed through the acoustical flow passages to attenuate acoustic noise emanating from the enclosure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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an electronic system enclosure housing at least one component of an electronic system, the enclosure having an aperture that is adapted to receive air therethrough, the enclosure including at least one cooling fan to move the air through the enclosure via the aperture in a first direction to cool the at least one component of the electronic system; and a noise reduction hood supported on the electronic system enclosure, the hood comprising; a base supported on the enclosure at the aperture, the base having an air duct that is adapted to pass the air therethrough in the first direction, and at least one noise reduction panel mounted on the base, the at least one noise reduction panel extending across the air duct to form a plurality of acoustical flow passages extending through the base along axes that are parallel to the first direction, the air to be passed through the acoustical flow passages to reduce acoustic noise resulting from operation of the at least one fan.
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12. A noise reduction hood for an electronic system enclosure, the hood comprising:
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a base that is constructed and arranged to be supported on the enclosure, the base including an inlet and an outlet and having an air duct that is adapted to pass air therethrough in a first direction from the inlet to the outlet, the base including at least one noise reduction panel disposed in the air duct to form at least one acoustical flow passage extending between the inlet and the outlet along an axis parallel to the first direction to attenuate acoustic noise emanating from the enclosure; and a cover supported on the base at the outlet, the cover being positioned substantially nonparallel to the axis of the acoustical flow passage to divert the air exiting the outlet of the base from the first direction to a second direction, the cover being detachable from the base, the cover including a plurality of support posts and the base including a plurality of apertures that slidably receive the support posts therein to support the cover on the base. - View Dependent Claims (13, 14)
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15. A noise reduction hood for an electronic system enclosure, the hood comprising:
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a base that is constructed and arranged to be supported on the enclosure, the base including an inlet and an outlet and having an air duct that is adapted to pass air therethrough in a first direction from the inlet to the outlet, the base including a plurality of noise reduction panels arranged in a grid in the air duct, the air duct being divided into a plurality of parallel acoustical flow passages extending through the base between the inlet and the outlet along an axis parallel to the first direction to attenuate acoustic noise emanating from the enclosure; and a cover supported on the base at the outlet, the cover being positioned substantially nonparallel to the axis of the acoustical flow passages to divert the air exiting the outlet of the base from the first direction to a second direction. - View Dependent Claims (16)
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17. An apparatus comprising:
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an electronic system enclosure housing at least one component of an electronic system, the enclosure having an aperture that is adapted to receive air therethrough, the enclosure including at least one cooling fan to move the air through the enclosure via the aperture in a first direction to cool the at least one component of the electronic system; and a noise reduction hood supported on the enclosure, the hood including; a base supported on the enclosure at the aperture, the base including an inlet and an outlet and having an air duct that is adapted to pass air therethrough in a first direction from the inlet to the outlet, the base including at least one noise reduction panel disposed in the air duct to form at least one acoustical flow passage extending along an axis parallel to the first axis, the air to be passed through the air duct to reduce acoustic noise resulting from operation of the at least one fan; and a cover supported on the base substantially nonparallel to the axis of the acoustical flow passage to divert the air exiting the outlet from the first direction to a second direction.
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18. A noise reduction hood for an electronic system enclosure, the enclosure having an aperture that is adapted to receive air therethrough, the enclosure including a raised wall surrounding the perimeter of the aperture, the raised wall having an outer perimeter, the hood comprising:
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a base that is constructed and arranged to be supported on the enclosure, the base including an inlet and an outlet and having an air duct that is adapted to pass air therethrough in a first direction from the inlet to the outlet, the base including at least one noise reduction panel in the air duct to form at least one acoustical flow passage extending between the inlet and the outlet along an axis parallel to the first direction to attenuate acoustic noise emanating from the enclosure, the base including an end wall with the inlet extending therethrough, the end wall to be disposed adjacent the raised wall of the enclosure when the base is supported on the enclosure, the end wall including an outer periphery and being substantially perpendicular to the axis of the acoustical flow passage; and a rim extending from substantially the entire outer periphery of the end wall approximately parallel to the axis of the acoustical flow passage, the rim being constructed and arranged to surround the outer perimeter of the raised wall of the enclosure to secure the base to the enclosure. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. An apparatus comprising:
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an electronic system enclosure housing at least one component of an electronic system, the enclosure having an aperture that is adapted to receive air therethrough, the enclosure including at least one cooling fan to move the air through the enclosure via the aperture in a first direction to cool the at least one component of the electronic system; and a noise reduction hood supported on the enclosure, the hood including; a base supported on the enclosure at the aperture, the base having an air duct that is adapted to pass the air therethrough in the first direction, the base including at least one noise reduction panel in the air duct to form at least one acoustical flow passage extending along an axis parallel to the first axis, the air to be passed through the air duct to reduce acoustic noise resulting from operation of the at least one fan; and a rim extending from the base approximately parallel to the axis of the acoustical flow passage, the rim including a plurality of flexible flanges surrounding a portion of the enclosure to secure the base to the enclosure.
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27. A noise reduction hood for an electronic system enclosure, the enclosure having an aperture that is adapted to receive air therethrough, the hood comprising:
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a base that is constructed and arranged to be supported on the enclosure, the base including a first end wall with an inlet, a second end wall with an outlet and a side wall connecting the first and second end walls, the base having an air duct that is adapted to pass air therethrough in a first direction substantially perpendicular to the first and second end walls from the inlet to the outlet, the inlet adapted to be positioned adjacent the aperture when the base is supported on the enclosure, each of the inlet and the outlet having a cross-sectional area, the cross-sectional area of the inlet being substantially equal to the cross-sectional area of the outlet; and at least one noise reduction panel mounted on the base between the first and second end walls, the at least one noise reduction panel extending across the air duct between the inlet and the outlet to form a plurality of acoustical flow passages extending through the base along axes that are parallel to the first direction, the air is to be passed through the acoustical flow passages to attenuate acoustic noise emanating from the enclosure. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification