ELECTRICAL SYSTEM ENCLOSURES
A frame for an enclosure includes a first set of corner support structures. Each corner support structure of the first set of corner support structures includes a main body, a first protrusion arranged to extend from the main body, a second protrusion arranged to extend from the main body and substantially orthogonal to the first protrusion, and a third protrusion arranged to extend from the main body and substantially orthogonal to both the first protrusion and the second protrusion. The frame further includes a second set of corner support structures having mirror image symmetry about a plane of symmetry of an opposing corner support structure of the first set of corner support structures.
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The subject matter disclosed herein relates to an enclosure, more particularly to electrical system enclosures, and even more particularly, exemplary embodiments of the present invention are directed to collapsible and easily transportable frames for electrical system enclosures.
Some electrical system enclosures comprise a stiff, welded unibody construction or a welded frame construction. The welds ensure a particular level of ingress protection which ensures dust, water vapor, and other substances cannot intrude within supportive framing of the enclosures. However, it should be appreciated that as electrical system enclosures are generally of a substantial size, the transportation of such welded enclosures is problematic.
BRIEF DESCRIPTION OF THE INVENTIONAccording to an exemplary embodiment of the present invention, a frame for an enclosure includes a first set of corner support structures and a second set of corner support structures, wherein each corner support structure of the second set of corner support structures has mirror image symmetry about a plane of symmetry of an opposing corner support structure of the first set of corner support structures. Furthermore, each corner support structure of the first set of corner support structures includes a main body, a first protrusion arranged to extend from the main body, the first protrusion having a first cross sectional shape and a first annular gasket retention formation arranged thereon, a first annular gasket configured to be arranged on the first annular gasket retention formation, a second protrusion arranged to extend from the main body and substantially orthogonal to the first protrusion, the second protrusion having a second cross sectional shape and a second annular gasket retention formation arranged thereon, a second annular gasket configured to be arranged on the second annular gasket retention formation, a third protrusion arranged to extend from the main body and substantially orthogonal to both the first protrusion and the second protrusion, the third protrusion having a third cross sectional shape and a third annular gasket retention formation arranged thereon, and a third annular gasket configured to be arranged on the third annular gasket retention formation. Furthermore, the first protrusion defines a first axis, the second protrusion defines a second axis, and the first axis and the second axis define the plane of symmetry.
According to another exemplary embodiment of the present invention, a kit for transport of a disassembled frame for an enclosure includes a first set of corner support structures arranged therein. Each corner support structure of the first set of corner support structures includes a main body, a first protrusion arranged to extend from the main body, the first protrusion having a first cross sectional shape and a first annular gasket retention formation arranged thereon, a second protrusion arranged to extend from the main body and substantially orthogonal to the first protrusion, the second protrusion having a second cross sectional shape and a second annular gasket retention formation arranged thereon, and a third protrusion arranged to extend from the main body and substantially orthogonal to both the first protrusion and the second protrusion, the third protrusion having a third cross sectional shape and a third annular gasket retention formation arranged thereon. The kit further includes a second set of corner support structures arranged therein, wherein each corner support structure of the second set of corner support structures includes a main body, a first protrusion arranged to extend from the main body, the first protrusion having a first annular gasket retention formation arranged thereon and being configured to couple to an associated first protrusion of a corner support structure of the first set of corner support structures, a second protrusion arranged to extend from the main body and substantially orthogonal to the first protrusion, the second protrusion having a second annular gasket retention formation arranged thereon and being configured to couple to an associated second protrusion of a corner support structure of the first set of corner support structures, and a third protrusion arranged to extend from the main body and substantially orthogonal to both the first protrusion and the second protrusion, the third protrusion having a third annular gasket retention formation arranged thereon and being configured to couple to an associated third protrusion of a corner support structure of the first set of corner support structures. The kit further includes a plurality of gasket assemblies configured to be arranged therein, wherein each gasket assembly of the plurality of gasket assemblies includes a first annular gasket configured to be arranged on the first annular gasket retention formation of corner support structures of the first and second sets of corner support structures, a second annular gasket configured to be arranged on the second annular gasket retention formation of corner support structures of the first and second sets of corner support structures, and a third annular gasket configured to be arranged on the third annular gasket retention formation of corner support structures of the first and second sets of corner support structures.
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 INVENTIONAs described above, conventional electrical system enclosures may be problematic in that transportation is cumbersome due to the conventional, fully-assembled welded manner of assembly. However, exemplary embodiments of the present invention provide a solution which significantly reduces a volume required for transport while maintaining an appropriate level of ingress protection as compared to conventional welded enclosures.
Turning to
Each of the protrusions 211, 212, and 213 includes at least two holes 204 formed therethrough. Each hole 204 may be countersunk to facilitate smooth assembly of the entire frame 100. Moreover, each hole 204 may be surrounded by an engagement groove 205 configured to engage with an associated framing support member (this is illustrated and described with reference to
It should be understood that as each of the protrusions 211, 212, and 213 are of a different cross-sectional shape, different corner support structures with mirror-image symmetry are necessary to form opposing corners of the frame 100. For example, the mirror-image symmetry includes a plane of symmetry defined by plane Y′-Z′ extending across an outer surface of the main body 210. The plane Y′-Z′ is parallel to a first axis defined by the protrusion 211 and parallel to a second axis defined by the protrusion 212. Furthermore, a third axis defined by the protrusion 213 is substantially orthogonal to the plane Y′-Z′. The corner support structure 101 with the mirror-image symmetry is illustrated in
Each of the protrusions 311, 312, and 313 includes at least two holes 304 formed therethrough. Each hole 304 may be countersunk to facilitate smooth assembly of the entire frame 100. Moreover, each hole 304 may be surrounded by an engagement groove 305 configured to engage with an associated framing support member (this is illustrated and described with reference to
As described above, both corner support structures 102 and 101 have three annular gasket retention formations matching a cross-sectional shape of associated protrusions. Hereinafter, a gasket assembly including a plurality of gaskets is described in detail.
Hereinafter, a more detailed description of individual framing support members is provided with reference to
As described above, electrical system enclosure 100 includes a plurality of members, structures, and gaskets configured to allow for assembly of a full supportive frame without welding such that a disassembled frame may be transported in a kit or flat-box of considerably less volume than that of the fully assembled frame. The kit may include all or at least a substantial portion of the elements illustrated in
Block 801 is expanded and illustrated within
The assembly of either the roof frame portion 112 or the base frame portion 111 includes engaging associated gaskets to gasket retention formations of each protrusion of associated corner support structures. As illustrated in
As illustrated in
As illustrated in
Upon attachment of horizontal support members 104 and 105, gasketed corner support structures 101 may be attached and secured with fasteners 170 form an entire base frame portion 111 and/or roof frame portion 112 as illustrated in
Upon assembly of a suitable base frame portion 111, vertical support members 106 may be attached to the base frame portion 111. For example, as illustrated in
Upon securing the roof frame portion 112 to the vertical support members 106, the entire frame 100 is assembled as illustrated in
As noted above, compression of each gasket 401, 402, and 403 between each corner support structure and associated horizontal and vertical support members affords appropriate ingress protection. This is illustrated in
As illustrated in the cross sectional view of
Hereinafter, alternative embodiments of corner support structures are described with reference to
Each of the protrusions 911, 912, and 913 includes at least two holes 904 formed therethrough. Each hole 904 may be countersunk to facilitate smooth assembly of the entire frame 100. Moreover, each hole may be surrounded by an engagement groove 905 configured to engage with an associated framing support member. Furthermore, each of the protrusions 911, 912, and 913 include fastener retention channels 906 directly opposing associated holes 904 and engagement grooves 905.
It should be understood that as each of the protrusions 911, 912, and 913 are of a different cross-sectional shape, different corner support structures with mirror-image symmetry are necessary to form opposing corners of the frame 100. For example, the mirror-image symmetry includes a plane of symmetry defined by plane Y″-Z″ extending across an outer surface of the main body 910. The plane Y″-Z″ is parallel to a first axis defined by the protrusion 911 and parallel to a second axis defined by the protrusion 913. Furthermore, a third axis defined by the protrusion 912 is substantially orthogonal to the plane Y″-Z″. The corner support structure 3001 with the mirror-image symmetry is illustrated in
Each of the protrusions 1111, 1112, and 1113 includes at least two holes 1104 formed therethrough. Each hole 1104 may be countersunk to facilitate smooth assembly of the entire frame 100. Moreover, each hole may be surrounding by an engagement groove 1105 configured to engage with an associated framing support member. Furthermore, each of the protrusions 1111, 1112, and 1113 include fastener retention channels 1106 directly opposing associated holes 1104 and engagement grooves 1105.
Turning now to
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 frame for an enclosure, comprising:
- a first set of corner support structures, wherein each corner support structure of the first set of corner support structures includes,
- a main body,
- a first protrusion arranged to extend from the main body, the first protrusion having a first cross sectional shape and a first annular gasket retention formation arranged thereon, wherein the first protrusion defines a first axis, and the first annular gasket retention formation comprises a first annular groove orthogonal to the first protrusion
- a first annular gasket configured to be arranged on the first annular gasket retention formation,
- a second protrusion arranged to extend from the main body and substantially orthogonal to the first protrusion, the second protrusion having a second cross sectional shape and a second annular gasket retention formation arranged thereon, wherein the second protrusion defines a second axis, the first axis and the second axis define a plane of symmetry, and the second annular gasket retention formation comprises a second annular groove orthogonal to the second protrusion, the main body of the corner support structure defining one wall of the first annular groove and one wall of the second annular groove,
- a second annular gasket configured to be arranged on the second annular gasket retention formation,
- a third protrusion arranged to extend from the main body and substantially orthogonal to both the first protrusion and the second protrusion, the third protrusion having a third cross sectional shape and a third annular gasket retention formation arranged thereon, and
- a third annular gasket configured to be arranged on the third annular gasket retention formation; and
- a second set of corner support structures, wherein each corner support structure of the second set of corner support structures has mirror image symmetry about the plane of symmetry of an opposing corner support structure of the first set of corner support structures.
2. The frame of claim 1, further comprising:
- a plurality of vertical support members having a cross sectional shape complementary to the first cross sectional shape and configured to engage with the first annular gasket and the first protrusion of opposing corner support structures of the first and second sets of corner support structures.
3. The frame of claim 2, further comprising:
- a plurality of horizontal support members having a cross sectional shape complementary to the second cross sectional shape and configured to engage with the second annular gasket and the second protrusion of opposing corner support structures of the first and second sets of corner support structures.
4. The frame of claim 3, further comprising:
- a second plurality of horizontal support members having a cross sectional shape complementary to the third cross sectional shape and configured to engage with the third annular gasket and the third protrusion of opposing corner support structures of the first and second sets of corner support structures.
5. (canceled)
6. (canceled)
7. The frame of claim 1, wherein each of the first annular gasket, second annular gasket, and third annular gasket is configured to deform and compress within the first annular groove and the second annular groove, respectively.
8. The frame of claim 1, wherein the first protrusion, the second protrusion, and the third protrusion of each corner support structure of the plurality of corner support structures further comprises at least one hole defined therein.
9. The frame of claim 8, further comprising:
- a plurality of vertical support members having a cross sectional shape complementary to the first cross sectional shape and configured to engage with the first annular gasket and the first protrusion of opposing corner support structures of the first and second sets of corner support structures, wherein each vertical support member of the plurality of vertical support members further comprises a hole associated with a hole of the first protrusion of opposing corner support structures of the first and second sets of corner support structures.
10. The frame of claim 9, further comprising:
- a plurality of horizontal support members having a cross sectional shape complementary to the second cross sectional shape and configured to engage with the second annular gasket and the second protrusion of opposing corner support structures of the first and second sets of corner support structures, wherein each horizontal support member of the plurality of horizontal support members further comprises a hole associated with a hole of the second protrusion of opposing corner support structures of the first and second sets of corner support structures.
11. The frame of claim 10, further comprising:
- a second plurality of horizontal support members having a cross sectional shape complementary to the third cross sectional shape and configured to engage with the third annular gasket and the third protrusion of opposing corner support structures of the first and second sets of corner support structures, wherein each horizontal support member of the second plurality of horizontal support members further comprises a hole associated with a hole of the third protrusion of opposing corner support structures of the first and second sets of corner support structures.
12. The frame of claim 11, further comprising a plurality of fasteners arranged within each hole of the plurality of vertical support members, the plurality of horizontal support members, and the second plurality of horizontal support members.
13. The frame of claim 12, wherein each of the first annular gasket, second annular gasket, and third annular gasket is configured to deform and compress upon an associated gasket retention formation responsive to the plurality of fasteners.
14. The frame of claim 1, wherein an engagement groove is formed on an outer surface of an associated protrusion extending distally from an associated hole.
15. A kit for transport of a disassembled frame for an enclosure, the kit comprising:
- a first set of corner support structures arranged therein, wherein each corner support structure of the first set of corner support structures includes, a main body, a first protrusion arranged to extend from the main body, the first protrusion having a first cross sectional shape and a first annular gasket retention formation arranged thereon, the first annular gasket retention formation comprising a first annular groove orthogonal to the first protrusion, a second protrusion arranged to extend from the main body and substantially orthogonal to the first protrusion, the second protrusion having a second cross sectional shape and a second annular gasket retention formation arranged thereon, the second annular gasket retention formation comprising a second annular groove orthogonal to the second protrusion, the main body of the corner support structure defining one wall of the first annular groove and one wall of the second annular groove, a third protrusion arranged to extend from the main body and substantially orthogonal to both the first protrusion and the second protrusion, the third protrusion having a third cross sectional shape and a third annular gasket retention formation arranged thereon;
- a second set of corner support structures arranged therein, wherein each corner support structure of the second set of corner support structures includes, a main body, a first protrusion arranged to extend from the main body, the first protrusion having a first annular gasket retention formation arranged thereon and being configured to couple to an associated first protrusion of a corner support structure of the first set of corner support structures, a second protrusion arranged to extend from the main body and substantially orthogonal to the first protrusion, the second protrusion having a second annular gasket retention formation arranged thereon and being configured to couple to an associated second protrusion of a corner support structure of the first set of corner support structures, a third protrusion arranged to extend from the main body and substantially orthogonal to both the first protrusion and the second protrusion, the third protrusion having a third annular gasket retention formation arranged thereon and being configured to couple to an associated third protrusion of a corner support structure of the first set of corner support structures; and
- a plurality of gasket assemblies configured to be arranged therein, wherein each gasket assembly of the plurality of gasket assemblies includes, a first annular gasket configured to be arranged on the first annular gasket retention formation of corner support structures of the first and second sets of corner support structures, a second annular gasket configured to be arranged on the second annular gasket retention formation of corner support structures of the first and second sets of corner support structures, a third annular gasket configured to be arranged on the third annular gasket retention formation of corner support structures of the first and second sets of corner support structures.
16. The kit of claim 15, further comprising:
- a plurality of vertical support members arranged therein, each vertical support member of the plurality of vertical support members having a cross sectional shape complementary to the first cross sectional shape and configured to engage with the first annular gasket and the first protrusion of opposing corner support structures of the first and second sets of corner support structures.
17. The kit of claim 16, further comprising:
- a plurality of horizontal support members arranged therein, each horizontal support member of the plurality of horizontal support members having a cross sectional shape complementary to the second cross sectional shape and configured to engage with the second annular gasket and the second protrusion of opposing corner support structures of the first and second sets of corner support structures.
18. The kit of claim 17, further comprising:
- a second plurality of horizontal support members arranged therein, each horizontal support member of the second plurality of horizontal support members having a cross sectional shape complementary to the third cross sectional shape and configured to engage with the third annular gasket and the third protrusion of opposing corner support structures of the first and second sets of corner support structures.
19. (canceled)
20. (canceled)
21. The frame of claim 3, wherein the first protrusion includes a first hole and the second protrusion includes a second hole,
- the first protrusion includes a groove extending from an end of the first protrusion to surround the first hole and the second protrusion includes a groove extending from an end of the second protrusion to surround the second hole,
- a first vertical support member of the plurality of vertical support members includes a conical protrusion having a shape complementary to the groove of the first protrusion, the conical protrusion having a third hole configured to align with the first hole based on the first vertical support member being engaged with the first annular gasket, and
- a first horizontal support member of the plurality of horizontal support members includes a conical protrusion having a shape complementary to the groove of the second protrusion, the conical protrusion having a fourth hole configured to align with the second hole based on the first vertical support member being engaged with the second annular gasket.
Type: Application
Filed: Mar 30, 2012
Publication Date: Oct 3, 2013
Applicant: GENERAL ELECTRIC COMPANY (Schenectady, NY)
Inventors: RAFAL MARCIN OBOZA (Kozy), JOZEF ZBIGNIEW BEDKOWSKI (Bielsko-Biala), RAFAL MICHAL BURZYNSKI (Bielsko-Biala), JOHAN RENE SYLVAIN DE CUYPER (Gent), PAWEL PIOTR KOWALSKI (Tychy), MATEUSZ BARTLOMIEJ SEKULA (Bielsko-Biala), TOMASZ PAWEL TOMANEK (Bielsko-Biala)
Application Number: 13/435,341
International Classification: A47F 5/14 (20060101);