METHOD AND APPARATUS FOR COVER FOR ENCLOSURE AND ENCLOSURE HAVING COVER
A cover for an enclosure includes a first louver panel having one or more first louvers. Also included is a second louver panel attached to the first louver panel and having one or more second louvers. The second louver panel having the one or more second louvers overlaps at least one of the one or more first louvers of the first louver panel.
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The subject matter disclosed herein relates to a venting cover, and more particularly to a cover having louvers, as well as a method of providing ventilation using a cover having louvers.
Outdoor electrical enclosures typically require proper ventilation to prevent an accumulation of heat within the enclosures which could damage enclosed electrical equipment. Elements, such as precipitation, insects, rodents, and other pests, dirt and debris, which may also deleteriously affect switchboards and other electrical components contained within the enclosure, need to be prevented from entering into the enclosure. To satisfy the need for heat ventilation as well as the need for protection from the outdoor elements, outdoor cover construction for electrical equipment enclosures commonly rely on a louver panel. The louver fin of each louver assists in directing falling precipitation away from a louver opening, however splashing or misting can cause some moisture to enter the enclosure through the louver opening. A baffle is used by some manufacturers within the enclosure to protect equipment in an area where splashing is an issue. Screens and/or filters behind the louver panel are also sometimes included to prevent dust, dirt, and insect ingress through the louver opening. Replacement of a screen or filter by an owner or operator may require turning off power to the unit or the need for personal protection equipment when the louver panel is removed to access the screen or filter.
BRIEF DESCRIPTION OF THE INVENTIONAccording to one aspect of the invention, a cover for an enclosure includes a first louver panel having one or more first louvers. Also included is a second louver panel attached to the first louver panel and having one or more second louvers. The second louver panel having the one or more second louvers overlaps at least one of the one or more first louvers of the first louver panel.
According to another aspect of the invention, an electrical enclosure includes the cover.
According to yet another aspect of the invention, a cover for an enclosure includes a first louver panel having a first plate portion, a first louver having a first fin portion extending from the first plate portion, and a first louver opening. Also included is a second louver panel having a second plate portion, a second louver having a second fin portion extending from the second plate portion, and a second louver opening. The second plate portion overlaps the first fin portion and the second louver opening overlaps the first plate portion.
According to still another aspect of the invention, a method of providing ventilation and protection to an electrical enclosure is provided. The method includes attaching an auxiliary louver panel to a first louver panel to form a louvered cover. The method further includes attaching the louvered cover to an opening in the electrical enclosure.
These and other advantages and features will become more apparent from the following description taken in conjunction with the drawings.
The subject matter, which is regarded as the invention, is particularly pointed out and distinctly claimed in the claims at the conclusion of the specification. The foregoing and other features, and advantages of the invention are apparent from the following detailed description taken in conjunction with the accompanying drawings in which:
The detailed description explains embodiments of the invention, together with advantages and features, by way of example with reference to the drawings.
DETAILED DESCRIPTION OF THE INVENTIONReferring to
With reference to
The first louver panel 20 further includes a plurality of first louvers 32 on the first plate portion 24. The first louvers 32, as more particularly shown in
As further shown in
The second louver panel 22 further includes a plurality of second louvers 52 on the second plate portion 44. The second louvers 52, as more particularly shown in
The second louvers 52 are offset from respective overlapped first louvers 32. In the exemplary embodiment of
In alternative exemplary embodiment depicted in
The depth C of the second louver panel 22, as shown in
In an exemplary embodiment of the cover 12, 112, for simplifying the replacement of filters 62 between the first and second louver panels 20, 22, the cover 12 or 112 further includes externally removable hardware 72 attaching the second louver panel 22 to the first louver panel 20.
In a case where no filter 62 is to be employed, operator access to a filter 62 is to be restricted, or aesthetic or operational requirements dictate that no external hardware 72 be made viewable or available, internally removable hardware 84 to secure the second louver panel 22 to the first louver panel 20 is provided without any externally accessible components.
Turning now to
A method of venting using the cover 12, 112, or 212, includes attaching the second louver panel 22 or 222 to the first louver panel 20 or 220, and attaching the first louver panel 20 or 220 to an opening of an enclosure 10. Louver openings 54, 254 of the second louver panel 22, 222 are arranged to be offset from respective louver openings 34, 234 of the first louver panel 20, 220. The method further includes inserting an air filter 62 between the first and second louver panels 20, 22, or 220, 222 and replacing the air filter 62 by removing the second louver panel 22, 222 while retaining the first louver panel 20, 220 on the enclosure 10. The method of venting described herein increases protection from misting and splashing of precipitation while maintaining proper ventilation.
The terms “first,” “second,” and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms “a” and “an” and “the” herein do not denote a limitation of quantity, and are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The suffix “(s)” may be used herein to include both the singular and the plural of the term that it modifies, thereby including one or more of that term (e.g., the louver panel(s) include one or more louvers). Reference throughout the specification to “one embodiment”, “another embodiment”, “an embodiment”, and so forth, means that a particular element (e.g., feature, structure, and/or characteristic) described in connection with the embodiment is included in at least one embodiment described herein, and may or may not be present in other embodiments. In addition, it is to be understood that the described elements may be combined in any suitable manner in the various embodiments.
While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention can be modified to incorporate any number of variations, alterations, substitutions or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the invention. Additionally, while various embodiments of the invention have been described, it is to be understood that aspects of the invention may include only some of the described embodiments. Accordingly, the invention is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.
Claims
1. A cover for an enclosure, the cover comprising:
- a first louver panel having one or more first louvers; and,
- a second louver panel attached to the first louver panel and having one or more second louvers, wherein the second louver panel having the one or more second louvers overlaps at least one of the one or more first louvers of the first louver panel.
2. The cover of claim 1, wherein the one or more first louvers extend towards the second louver panel and the one or more second louvers are offset by an offset distance from the one or more first louvers.
3. The cover of claim 2, wherein a row of the one or more second louvers is offset by the offset distance from a corresponding row of the one or more first louvers.
4. The cover of claim 2, wherein the offset distance of the one or more second louvers with respect to the one or more first louvers is substantially equal to a height of a louver opening of the one or more first louvers.
5. The cover of claim 2, wherein a column of the one or more second louvers are offset from a corresponding column of the one or more first louvers.
6. The cover of claim 5, wherein adjacent columns of the one or more first louvers are spaced apart from each other by approximately a same dimension as a width of the one or more second louvers.
7. The cover of claim 1, wherein the first louver panel includes a first plate portion and one or more first fin portions extending outwardly from the first plate portion and towards the second louver panel, and the second louver panel includes a second plate portion and one or more second fin portions extending from the second plate portion, the second plate portion overlapping the one or more first fin portions, and louver openings of the second louver panel overlapping the first plate portion.
8. The cover of claim 1, wherein the first louver panel includes a first plate portion and one or more first fin portions extending outwardly from the first plate portion and towards the second louver panel, and the second louver panel includes a second plate portion spaced from the first plate portion by a distance not greater than twice an extension distance of the one or more first fin portions.
9. The cover of claim 8, wherein the extension distance is sized to trap an air filter interposed between the first louver panel and the second louver panel.
10. The cover of claim 1 wherein the second louver panel is coupled to the first louver panel and covers one or more first louvers of the first louver panel by one or more threaded connectors, the one or more threaded connectors including a portion accessible from an exterior of the second louver panel.
11. The cover of claim 1, wherein a total space occupied by louver openings in the second louver panel is approximately same as or greater than a total space occupied by an overlapped portion of louver openings in the first louver panel.
12. The cover of claim 1, wherein the second louver panel includes a bottom side plate, the bottom side plate having an aperture defined therethrough.
13. The cover of claim 1 wherein offset louver openings in the first and second louver panels enable ventilation sequentially through the first and second louver panels at a non-zero and non-perpendicular angle relative to a first plate of the first louver panel.
14. An electrical enclosure having the cover as claimed in claim 1.
15. The electrical enclosure of claim 14, wherein the cover is a door capable of providing or restricting access to an interior of the electrical enclosure.
16. The electrical enclosure of claim 14, wherein the first and second louver panels are separated by a distance sized to receive an air filter there between, the air filter removable by removing the second louver panel while retaining the electrical enclosure in a closed condition with the first louver panel.
17. A cover for an enclosure, the cover comprising:
- a first louver panel having a first plate portion, a first louver having a first fin portion extending from the first plate portion, and a first louver opening; and,
- a second louver panel having a second plate portion, a second louver having a second fin portion extending from the second plate portion, and a second louver opening;
- wherein the second plate portion overlaps the first fin portion and the second louver opening overlaps the first plate portion.
18. A method of providing ventilation and protection to an electrical enclosure, the method comprising:
- attaching an auxiliary louver panel onto a first louver panel to form a louvered cover; and,
- attaching the louvered cover to an opening in the electrical enclosure.
19. The method of claim 18, further comprising inserting an air filter between the auxiliary louver panel and the first louver panel.
20. The method of claim 19, further comprising replacing the air filter by removing the auxiliary louver panel while retaining the first louver panel on the enclosure.
21. The electrical enclosure of claim 14, wherein the first louver panel is attached to the enclosure.
Type: Application
Filed: Nov 16, 2012
Publication Date: May 22, 2014
Applicant: GENERAL ELECTRIC COMPANY (Schenectady, NY)
Inventors: William Robert Letourneau (Prospect, CT), Enrique David Melgoza (Bristol, CT), Michael Richard Wood (Southington, CT)
Application Number: 13/679,447
International Classification: E04F 13/00 (20060101);