Storage space extension structure in cabinet

Abstract

To provide an extension structure of a storage space in a cabinet capable of extending the storage space while saving a space more than before.SOLUTION: A rear half of the right side face opening 8 is covered with an extension panel 11 having a swelling part swelling outward instead of the right side plate, and an internal space of the extension panel 11 can be used as a space for storing equipment. Therefore, the equipment can be added in a smaller space than before, and the equipment can be added while flexibly coping with the installation environment of the cabinet 1. Also, since the equipment installation frame 21 including one column body 22, 22 extending in the vertical direction and the installation panel side 23A and side 23B for installing the equipment installed between the column bodies 22, 22 is attached to the edge of the right side surface opening 8, and the equipment installation frame 21 is covered with the extension panel 11, the equipment can be easily extended in the extension panel 11.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a storage space expansion structure for expanding the space for accommodating equipment in a cabinet used in, for example, high-voltage power receiving equipment. [Background technology]

[0002] Conventionally, cabinets for storing, for example, electrical equipment include the one described in Patent Document 1. Such conventionally known cabinets include a housing in which a front opening, a rear opening, a left side opening, and a right side opening are covered by plates, doors, or the like. When it becomes necessary to store additional equipment in such a cabinet, as described in Patent Document 1, this has been addressed by, for example, placing another cabinet next to the left or right side of one cabinet and connecting the two cabinets with the spaces inside the housings communicating with each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7118534 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the conventional structure of installing identical cabinets side by side poses the problem of being unable to accommodate certain sites, as it requires a large installation space and side-by-side installation is sometimes not possible due to the position of the door body, etc. Another problem is that, for example, when cabinets are used as high-voltage power receiving equipment, adding new cabinets is prohibited by the Fire Service Act.

[0005] SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and aims to provide a storage space expansion structure for a cabinet that enables expansion of storage space in a more space-saving manner than conventional structures. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the invention described in claim 1 of the present invention is a storage space expansion structure in a cabinet in which an opening on the peripheral surface of the housing can be covered by a plate or a door, and the opening is covered by an expansion panel having a bulging portion that bulges outward instead of the plate or the door, and the internal space of the bulging portion can be used as a space for storing equipment. The invention described in claim 2 is characterized in that, in the invention described in claim 1, an equipment installation frame having a column extending in the vertical direction and an installation panel for installing equipment attached to the column is attached to the edge of the opening, and the equipment installation frame is covered by the extension panel. The invention as set forth in claim 3 is characterized in that in the invention as set forth in claim 1 or 2, the extension panel is provided with a window for visually checking the internal space of the bulging portion. [Effects of the Invention]

[0007] According to the present invention, instead of a plate or door, the opening is covered with an expansion panel having an outward bulge, and the internal space of the bulge can be used as space for storing equipment. Therefore, it is possible to add equipment in a smaller space than before, and equipment can be added while flexibly adapting to the installation environment of the cabinet. Furthermore, according to the invention described in claim 2, an equipment installation frame having a column extending in the vertical direction and an installation panel for installing equipment attached to the column is attached to the edge of the opening, and the equipment installation frame is covered by the expansion panel, so that equipment can be easily added within the expansion panel. Furthermore, according to the invention described in claim 3, the expansion panel is provided with a window for viewing the internal space of the bulge, so that it can also accommodate the expansion of devices equipped with meters, etc., thereby improving versatility. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective explanatory view showing the appearance of a cabinet before a storage space is added. [Figure 2] FIG. 10 is a perspective explanatory view showing the appearance of a cabinet with an additional storage space. [Figure 3] FIG. 10 is an explanatory diagram showing an exploded view of the expansion structure for the storage space of the cabinet. [Figure 4] FIG. 2 is a perspective explanatory view showing an extension panel. [Figure 5] FIG. 2 is a perspective explanatory view showing the equipment installation frame. [Figure 6] FIG. 6 is an explanatory diagram showing an enlarged view of part A in FIG. 5. [Figure 7] 3 is an explanatory diagram showing a vertical cross section of the central portion in the front-to-rear direction of the extension panel of the cabinet in the state of FIG. 2.

[0023] FIG. [Figure 8] 8 is an explanatory diagram showing screw fastening positions on the front side of the equipment installation frame in a cross section taken along the line BB in FIG. 7. [Figure 9] 8 is an explanatory diagram showing screw fastening positions on the rear side of the equipment installation frame in a cross section taken along the line BB in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed description will now be given of a storage space expansion structure for a cabinet according to an embodiment of the present invention with reference to the accompanying drawings.

[0010] FIG. 1 is an explanatory perspective view showing the appearance of the cabinet 1 before the storage space is added. FIG. 2 is an explanatory perspective view showing the appearance of the cabinet 1 after the storage space is added. FIG. 3 is an explanatory view showing the expanded storage space structure of the cabinet 1 in an exploded state. FIG. 4 is an explanatory perspective view showing the expansion panel 11. FIG. 5 is an explanatory perspective view showing the equipment installation frame 21. FIG. 6 is an explanatory view showing an enlarged view of part A in FIG. 5. FIG. 6 is an explanatory perspective view showing the equipment installation frame 21. FIG. 7 is an explanatory view showing a vertical cross section of the central part in the front-to-rear direction of the expansion panel 11 of the cabinet 1 in the state shown in FIG. 2. FIG. 8 is an explanatory view showing screw fastening positions on the front side of the equipment installation frame 21 in the cross section taken along line BB in FIG. 7. FIG. 9 is an explanatory view showing screw fastening positions on the rear side of the equipment installation frame 21 in the cross section taken along line BB in FIG. 7.

[0011] Cabinet 1 is used as high-voltage power receiving equipment and comprises a rectangular frame-shaped housing 2 with openings on the top, bottom, front, rear, and left and right sides, a top plate 3, a bottom plate 4, a rear plate 5, a left plate (not shown), and right plate 6A, 6B that close these openings, and a front door 7 that opens and closes the front opening of housing 2. When it is desired to add equipment to cabinet 1, this can be achieved by attaching an equipment installation frame 21 to housing 2 in place of right plate 6B, as shown in Figure 2, and attaching an extension panel 11 to equipment installation frame 21.

[0012] The extension panel 11 has a bulging portion that bulges out to the right when attached to the housing 2 as described below, allowing the space within the bulging portion to be used as equipment storage space. It has an upper plate 11A, a lower plate 11B, a front plate 11C, a rear plate 11D, and a right plate 11E, and is formed in the shape of a rectangular box with an opening on the left side. The vertical length of the extension panel 11 is slightly longer than the vertical length of the right side opening 8 provided on the right side of the housing 2. Meanwhile, the front-to-rear length of the extension panel 11 is slightly longer than half the front-to-rear length of the right side opening 8. The right plate 11E of the extension panel 11 is provided with a window 12 that allows the interior of the extension panel 11 to be viewed. Furthermore, the front plate 11C and the rear plate 11D are each provided with an attachment notch 13 at the top and bottom for attaching the extension panel 11 to the housing 2. Each mounting notch 13 is cut in an oblique direction so as to rise from the left edge of the front plate 11C or the rear plate 11D toward the right.

[0013] The equipment installation frame 21 includes a pair of front and rear pillars 22, 22 extending in the vertical direction, and two upper and lower installation panels 23A, 23B installed between the pillars 22, 22. Each pillar 22 is formed by bending the front and rear edges of a strip-shaped metal plate extending in the vertical direction so that they face each other. The pillars 22 include an outer plate portion 22A located on the outer side in the front-to-rear direction (the front side of the front pillar 22 and the rear side of the rear pillar 22), an inner plate portion 22C located on the inner side in the front-to-rear direction (the rear side of the front pillar 22 and the front side of the rear pillar 22), and a connecting plate portion 22B connecting the left end edges of the outer plate portion 22A and the inner plate portion 22C. Fixing holes 24, 24 are drilled in the upper and lower parts of the connecting plate portion 22B for fastening the equipment installation frame 21 to the housing 2 with screws. Additionally, locking bolts 25, 25 protruding outward in the front-to-rear direction are installed at the upper and lower portions of the outer plate portion 22A. Each locking bolt 25 has a shaft that fits into the mounting notch 13 to lock the extension panel 11. The vertical spacing between the locking bolts 25, 25 is the same as the vertical spacing between the mounting notches 13, 13. Furthermore, the inner plate portion 22C is provided with a plurality of mounting holes 26, 26·· arranged in parallel in the vertical direction for screwing the installation panels 23A, 23B. Each mounting hole 26 is formed as an elongated hole that is long in the vertical direction. The vertical length of the pillar 22 is approximately the same as the vertical length of the right side opening 8. The vertical spacing between the pillars 22, 22, particularly the spacing between the inner plate portions 22C, 22C, is approximately equal to half the vertical length of the right side opening 8.

[0014] On the other hand, the installation panels 23A and 23B are formed by bending the front and rear edges of a metal plate, whose thickness is in the left-right direction, to the left. The bent portions serve as screw fastening portions to the column 22, and are provided with elongated screw fastening holes that are long in the left-right direction, allowing the screw fastening positions of the installation panels 23A and 23B relative to the column 22 to be adjusted in the left-right direction. In addition, the flat portion located between the bent portions functions as an installation portion for installing equipment, and equipment can be installed on either the front (right surface) or inner (left surface) of the flat portion. Furthermore, the installation portion of installation panel 23B protrudes more to the right (outside) than installation panel 23A.

[0015] Here, the attachment of the equipment installation frame 21 and the extension panel 11 will be described. First, when it becomes necessary to add equipment to the cabinet 1, the rear right side panel 6B is removed from the housing 2 to expose the rear half of the right side opening 8. Next, the equipment installation frame 21 is screwed to the exposed periphery of the right side opening 8. Screw-fastening bosses 31, 31 protrude from the center post 9 that stands to divide the right side opening 8 at approximately the center in the front-to-rear direction, and from the outer side (rear side) of the drip edge 10 that extends in the up-and-down direction along the rear edge of the right side opening 8. Therefore, by aligning the fixing holes 24, 24... of the equipment installation frame 21 with the screw-fastening bosses 31, 31... and screwing them, the equipment installation frame 21 is screwed to the housing 2.

[0016] Finally, the extension panel 11 is hung on the equipment installation frame 21 by inserting the hanging bolts 25, 25... into the mounting notches 13, 13, and then the hanging bolts 25, 25... are tightened, so that the equipment installation frame 21 is covered from the outside by the extension panel 11, and the installation of the equipment installation frame 21 and the extension panel 11 is complete. The installation panels 23A, 23B may be screwed to the pillars 22, 22 after the pillars 22, 22 are screwed to the housing 2 side, or may be integrated with the pillars 22, 22 before the pillars 22, 22 are screwed. Furthermore, the installation of the equipment on the installation panels 23A, 23B may be done either before or after the equipment installation frame 21 is screwed to the housing 2, and may be done at any timing.

[0017] According to the storage space expansion structure for cabinet 1 having the above-described configuration, the rear half of right side opening 8 is covered by expansion panel 11 having a bulging portion that bulges outward, instead of right side panel 6B, and the internal space of expansion panel 11 can be used as space for storing equipment. Therefore, it is possible to expand equipment in a smaller space than before, and equipment can be expanded while flexibly adapting to the installation environment of cabinet 1. In addition, an equipment installation frame 21 having a single pillar 22, 22 extending in the vertical direction and installation panels 23A, 23B for installing equipment that are installed between the pillars 22, 22 is attached to the edge of the right side opening 8, and the equipment installation frame 21 is covered by the expansion panel 11, so that equipment can be easily added within the expansion panel 11.

[0018] Furthermore, the expansion panel 11 can be attached by engaging the attachment notches 13, 13 provided on the expansion panel 11 with the attachment bolts 25, 25 provided on the pillars 22, 22, making it easy to attach the expansion panel 11 and simplifying the work involved in the addition. In addition, a window 12 is provided on the right panel 11E of the extension panel 11 to allow for viewing of the internal space of the extension panel 11, so that it can also accommodate the addition of devices equipped with meters, etc., thereby improving versatility.

[0019] The storage space expansion structure in the cabinet according to the present invention is not limited to the above-described embodiment, and the overall configuration of the cabinet as well as the configuration of the expansion panel, equipment installation frame, etc. can be appropriately modified as needed within the scope of the present invention.

[0020] For example, in the above embodiment, a window is provided in the extension panel, but in addition to the window, a cable passage opening for passing cables in and out of the extension panel or a vent for ventilating the inside of the extension panel may be provided in the extension panel (for example, by opening a cable passage opening or a vent in the bottom plate of the extension panel), or conversely, no window may be provided. Needless to say, the specific shape of the extension panel can be changed in design and is not limited to a rectangular box shape.

[0021] In addition, in the above embodiment, an expansion panel is attached in place of the right side panel, but it is also possible to attach an expansion panel in place of the rear panel or left side panel, and if a right door or rear door is provided in place of the right side panel or rear panel, it is also possible to attach an expansion panel in place of those doors, and the design of where in the cabinet the expansion panel can be attached can be changed as appropriate.

[0022] Furthermore, in the above embodiment, the expansion panel is attached to an equipment installation frame that is screwed to the housing, but the expansion panel itself may be configured to be screwed to the housing, and the specific structure for attaching the expansion panel can be redesigned as appropriate. In addition, although the above embodiment describes a cabinet used in high-voltage power receiving equipment, the present invention can also be suitably adopted as a structure for expanding storage space in other cabinets, such as cabinets for storing communication devices. [Explanation of symbols]

[0023] 1··Cabinet, 2··Housing, 6B··Right side panel (plate body), 8··Right side opening, 11··Extension panel, 12··Window, 13··Mounting cutout, 21··Equipment installation frame, 22··Column body, 23A, 23B··Installation panel, 25··Latching bolt.

Claims

1. A storage space expansion structure for a cabinet in which an opening on the periphery of a housing can be covered with a plate or a door, A storage space expansion structure for a cabinet, characterized in that the opening is covered by an expansion panel having a bulging portion that bulges outward instead of the plate body or the door body, and the internal space of the bulging portion can be used as space for storing equipment.

2. an equipment installation frame including a column extending in the vertical direction and an installation panel for installing equipment attached to the column is attached to an edge of the opening; 2. The storage space expansion structure for a cabinet according to claim 1, wherein the equipment installation frame is covered by the expansion panel.

3. 3. The storage space expansion structure for a cabinet according to claim 1, wherein the expansion panel is provided with a window for visually observing the internal space of the bulging portion.

Images