Sub-rack for electronic apparatus, and rack for electronic apparatus

Abstract

To provide a sub-rack for an electronic apparatus that allows easy mounting of electronic apparatuses at various heights.SOLUTION: A first component 12 has a bottom plate 22, a pair of first side walls 24a, b, a pair of first stationary parts 26a, b, and a pair of mounting parts 28. The first stationary parts project from end faces of the first side walls on which an electronic apparatus is taken in and out on the bottom plate between the first side walls, and are fixed to a frame of a rack for an electronic apparatus 10. The mounting parts are mounted on support parts provided on the frame of the rack for an electronic apparatus. A second component 14 has a ceiling plate, a pair of second side walls, and a pair of second stationary parts. The ceiling plate 32 is arranged at a position facing the bottom plate. The second stationary parts 36a, b project toward the outside of the second side walls from end faces of the second side walls 34a, b on which the electronic apparatus is taken in and out between the second side walls, and are fixed to the frame of the rack for an electronic apparatus while the height of the ceiling plate relative to the bottom plate of the first component is adjusted.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] An embodiment of the present invention relates to an electronic device subrack and an electronic device rack. [Background technology]

[0002] When mounting multiple electronic devices in an electronic device rack (hereinafter referred to mainly as a rack) having a predetermined width, multiple electronic device subracks (hereinafter referred to mainly as subracks) are mounted in the rack, and the multiple electronic devices are divided and mounted among the multiple subracks. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-358477 [Patent Document 2] Japanese Patent Application Laid-Open No. 2005-198686 Summary of the Invention [Problem to be solved by the invention]

[0004] The problem to be solved by the present invention is to provide an electronic device subrack that can easily accommodate electronic devices of various heights, and an electronic device rack that has such a subrack. [Means for solving the problem]

[0005] According to an embodiment, the electronic device subrack includes a first component and a second component. The first component has a bottom plate on which various electronic devices are placed, a pair of first side walls, a pair of first fixing portions, and a pair of mounting portions. The pair of first side walls are respectively provided on the bottom plate and face each other. The pair of first fixing portions protrude from an end face of the pair of first side walls on the side where electronic devices are inserted and removed onto the bottom plate between the pair of first side walls toward the outside of the pair of first side walls and are fixed to the frame of the electronic device rack. The pair of mounting portions are respectively provided on the outer surfaces of the pair of first side walls and are placed on supports provided on the frame of the electronic device rack. The second component has a top plate, a pair of second side walls, and a pair of second fixing portions. The top plate is positioned opposite the bottom plate. The pair of second side walls are provided on the ceiling board, face each other, and together with the ceiling board and the first component, form a storage section for storing electronic devices. The pair of second fixing parts protrude from the end faces of the pair of second side walls on the side where the electronic devices are inserted and removed toward the outside of the pair of second side walls, and are fixed to the frame of the electronic device rack by adjusting the height of the ceiling board relative to the bottom board of the first component. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is a schematic front view showing the configuration of an electronic equipment rack according to an embodiment. [Figure 2] A side view of the rack as seen from the direction indicated by the symbol II in FIG. 1. [Figure 3] 1 is a schematic exploded perspective view of a subrack for electronic devices according to a first embodiment used in a rack; [Figure 4] FIG. 10 is a schematic perspective view showing a state in which the height of the accommodation section of the subrack used in the rack is lowered. [Figure 5] FIG. 5 is a schematic front view of the subrack shown in FIG. 4. [Figure 6] FIG. 6 is a side view of the subrack as seen from the direction indicated by the symbol VI in FIG. 5. [Figure 7] FIG. 7 is an enlarged view of the position indicated by the symbol VII in FIG. 6. [Figure 8]5 is a schematic perspective view showing a state in which the height of the accommodation section of the subrack used in the rack is increased compared to the state shown in FIG. 4. [Figure 9] FIG. 9 is a schematic front view of the subrack shown in FIG. 8. [Figure 10] FIG. 10 is a side view of the subrack as seen from the direction indicated by the symbol X in FIG. 9. [Figure 11] FIG. 11 is an enlarged view of the position indicated by the symbol XI in FIG. [Figure 12] FIG. 10 is a schematic exploded perspective view of a subrack for electronic devices according to a second embodiment used in a rack. [Figure 13] FIG. 10 is a schematic front view of a subrack for electronic devices according to a third embodiment used in a rack. DETAILED DESCRIPTION OF THE INVENTION

[0007] Preferred embodiments will now be described with reference to the drawings.

[0008] (First embodiment) Fig. 1 is a schematic front view showing the configuration of an electronic equipment rack (hereinafter mainly referred to as a rack) 100 having an electronic equipment subrack (hereinafter mainly referred to as a subrack) 10 according to an embodiment. Fig. 2 is a side view of the rack 100 as seen from the direction indicated by reference symbol II in Fig. 1. The rack 100 includes a housing 100a, a plurality of support portions 120 provided in the housing 100a and on which a pair of mounting portions 28 (described later) of the subrack 10 are placed and support the mounting portions, and the subrack 10 supported by the support portions 120 and fixed to the housing 100a.

[0009] An XYZ Cartesian coordinate system is set for the rack 100 as shown in Figures 1 and 2. Note that male screws or bolts (hereinafter, these will be mainly referred to as screws) used to attach the subrack 10 to the housing 100a of the rack 100 are not shown in Figures 1 and 2. Note that, for example, washer-mounted screws or thumb screws can be used as the male screws.

[0010] FIG. 3 is an exploded perspective view of the electronic device subrack 10 according to the first embodiment used in the rack 100. As shown in FIG.

[0011] Fig. 4 is a schematic perspective view showing a state in which the height H of the accommodation section 10a of the subrack 10 used in the rack 100 is lowered. Fig. 5 is a schematic front view of the subrack 10 shown in Fig. 4. Fig. 6 is a side view of the subrack 10 seen from the direction indicated by reference symbol VI in Fig. 5. Fig. 7 is an enlarged view of the position indicated by reference symbol VII in Fig. 6.

[0012] Fig. 8 is a schematic perspective view showing a state in which the height H of the accommodation section 10a of the subrack 10 used in the rack 100 is increased compared to the state shown in Fig. 4. Fig. 9 is a schematic front view of the subrack 10 shown in Fig. 8. Fig. 10 is a side view of the subrack 10 seen from the direction indicated by symbol X in Fig. 9. Fig. 11 is an enlarged view of the position indicated by symbol XI in Fig. 10.

[0013] 4 to 11, the screws used to attach the second part 14 to the first part 12 of the subrack 10 are not shown.

[0014] The subrack 10 is also set with an XYZ Cartesian coordinate system, similar to the rack 100 shown in FIGS.

[0015] In this embodiment, the housing 100a of the rack 100, the multiple supports 120, and the subrack 10 are formed of a metal material such as an aluminum alloy, steel, or stainless steel. As shown in FIG. 1 , the housing 100a of the rack 100 and the subrack 10 are described below with the rack 100 installed on an appropriate flat surface (installation surface) such that the side from which an operator inserts and removes various electronic devices (stored items) is the front side, and the opposite side is the back side. The insertion and removal direction of the various electronic devices is the front-to-back direction (Y-axis direction), and the direction perpendicular to both the front-to-back direction and the up-to-down direction (Z-axis direction) is the left-to-right direction (width direction (X-axis direction)). Note that the housing 100a of the rack 100 may also be configured such that the front side of this embodiment is used as the back side and the back side is used as the front side.

[0016] In this embodiment, the vertical direction is the direction along the direction of gravity. Generally, the height of the housing 100a of the rack 100 in the vertical direction along the Z axis is greater than the width in the horizontal direction along the X axis and the depth in the front-rear direction along the Y axis.

[0017] 1 and 2, the housing 100a of the rack 100 is formed, for example, in a substantially rectangular parallelepiped shape. The rack 100 has frames, such as rectangular pillars or L-shaped steel beams, arranged at the sides of the substantially rectangular parallelepiped. As an example, the housing 100a of the rack 100 includes a pair of vertical frames 102 extending vertically on the front side, a pair of vertical frames 104 extending vertically on the rear side, a pair of width frames 106 extending left and right on the front and rear sides above the vertical frames 102 and 104, a pair of front and rear frames 108 extending in the front and rear directions between the pair of width frames 106, a pair of width frames 110 extending left and right on the front and rear sides below the vertical frames 102 and 104, and a pair of front and rear frames 112 extending in the front and rear directions between the pair of width frames 110. The width between the pair of vertical frames 102 and the width between the pair of vertical frames 104 are each larger than the width between the outer sides of a pair of second side walls 34a, 34b (described later) of the subrack 10. The width between the pair of vertical frames 102 is formed to a size that allows a pair of side plates (fixing portions) 26a, 26b of a first component 12 (described later) of the subrack 10 and a pair of side plates (fixing portions) 36a, 36b of a second component 14 (described later) to be fixed to the pair of vertical frames 102.

[0018] It is preferable that the width of the housing 100a of the rack 100 and the width of the subrack 10 are set to a predetermined size that complies with an appropriate standard specified in the JIS C 6010 group (IEC 60917-1:2019), such as JIS C 6012-3-100:2015 (IEC 60297-3-100:2008), but this is not limited to this.

[0019] A vertical frame 102 extending vertically on the front side of the housing 100a of the rack 100 has a number of screw openings 118, for example, arranged vertically at predetermined intervals, for fixing the support part 120 and subrack 10 described later.

[0020] The inner peripheral edge of the screw opening 118 may be tapped to form a female thread so that the screw can be directly threaded into the screw opening 118. The bolt may be passed through the screw opening 118 and further fixed with a nut (not shown). When a bolt is used, the screw opening 118 does not have to be tapped.

[0021] In the housing 100a of the rack 100, one or more pairs of support parts 120 on which the subrack 10 is placed are arranged between the vertical frames 102, 104 spaced apart in the front-to-rear direction. Each support part 120 is formed, for example, by an L-shaped steel beam or a square pillar, so that the subrack 10 can be slid to a predetermined position and can be placed thereon. For this reason, the support parts 120 are formed, for example, as rails. The height position of the support parts 120 can be set as appropriate. That is, the support parts 120 can be arranged at an appropriate height along the front-to-rear direction of the vertical frames 102, 104.

[0022] 1 and 2 show an example in which a rack 100 has multiple pairs of support parts 120 arranged at different positions in the vertical direction. As shown in FIGS. 1 and 2, a housing 100a of the rack 100 according to this embodiment is provided with multiple pairs of support parts 120 according to the heights of subracks 10 arranged adjacent to or spaced apart in the vertical direction. Each pair of support parts 120 supports a respective subrack 10, and the subrack 10 is fixed to the housing 100a of the rack 100. The subracks 10 shown in FIGS. 1 and 2 have different heights of the accommodation parts 10a in which various electronic devices are accommodated, but they may be the same height.

[0023] Doors may or may not be provided on the front and rear sides of the housing 100a of the rack 100. The top surface of the housing 100a of the rack 100 may or may not be covered by, for example, a mesh-like flat plate.

[0024] As shown in FIG. 3, the subrack 10 of this embodiment comprises a first component 12 that serves as a platform on which various electronic devices are placed, and a second component 14 that is fixed to cover the first component 12 from above and covers the upper sides of the various electronic devices.

[0025] The first component 12 has a bottom plate 22 on which various electronic devices are placed, a pair of side walls (a pair of first side walls) 24a, 24b standing upward from the bottom plate 22, a pair of side plates (a pair of first fixing portions) 26a, 26b connecting the bottom plate 22 and the pair of side walls 24a, 24b, and a pair of mounting portions (one or more metal fittings) 28.

[0026] The bottom plate 22 is formed, for example, as a substantially rectangular plate parallel to the mounting surface (floor surface) of the housing 100a of the rack 100. The bottom plate 22 is formed to a size that allows electronic devices of appropriate widths to be mounted thereon. The bottom plate 22 may be formed as a flat surface or in a net (mesh) shape. Alternatively, the bottom plate 22 may be formed, for example, as a rectangular parallelepiped box of appropriate thickness.

[0027] The pair of side walls 24a, 24b are provided to protrude upward from a pair of end faces of the bottom plate 22 and face each other. The pair of side walls 24a, 24b are formed, for example, as approximately rectangular plates. It is preferable that the heights of the lower ends and upper ends of the pair of side walls 24a, 24b are the same. The pair of side walls 24a, 24b and the bottom plate 22 form an approximately rectangular parallelepiped space whose front, rear, and upper sides are open, and into which electronic devices can be inserted and removed, for example, from the front side.

[0028] The pair of side walls 24a, 24b may be fixed to the bottom plate 22 by screw fixing, welding, or the like, or may be formed integrally and then bent.

[0029] For example, a rear wall may be provided on the rear side of the subrack 10 to connect the pair of side walls 24a, 24b, or no rear wall may be provided to facilitate cable routing. If a rear wall is provided, it may be provided only on a portion of the rear side. Here, the description will be given assuming that there is no rear wall on the rear side of the subrack 10.

[0030] The pair of side plates 26a, 26b protrude from the end face (front end face) of the bottom plate 22 between the pair of first side walls 24a, 24b on the side where electronic devices are inserted and removed toward the outside of the pair of first side walls 24a, 24b. The pair of side plates 26a, 26b are preferably formed parallel to a plane defined by the up-down and left-right directions. The pair of side plates 26a, 26b are formed, for example, as approximately rectangular plates that follow a plane defined by the up-down and left-right directions.

[0031] The pair of side plates 26a, 26b have a plurality of through holes 27 at intervals corresponding to an integer multiple (including 1) of the interval between adjacent screw openings 118 in the vertical direction of the vertical frame 102. While Fig. 3 shows an example in which three through holes 27 are arranged along the vertical direction of each side plate 26a, 26b, it is also preferable to arrange two or four or more through holes 27. Then, the pair of side plates 26a, 26b are fixed to the vertical frame 102 of the housing 100a of the rack 100 by passing screws through the through holes 27 and fastening them to the screw openings 118 of the vertical frame 102 of the housing 100a of the rack 100.

[0032] The pair of side plates 26a, 26b may be fixed to the bottom plate 22 and the pair of side walls 24a, 24b by screw fixing, welding, or the like, or may be formed integrally and then bent.

[0033] The mounting portions 28 are provided on the outer surfaces of the pair of first side walls 24a, 24b, respectively. That is, the mounting portions 28 to be mounted on the support portions 120 of the rack 100 are arranged on the outer surfaces of the pair of side walls 24a, 24b, respectively. Therefore, as shown in Figs. 5 and 9, mounting portions 28 are formed not only on the right side surface but also on the left side surface when viewed from the front side of the subrack 10.

[0034] In this embodiment, the mounting portion 28 includes, for example, a plurality of L-shaped steel beams on each of the first side walls 24a and the other side wall 24b of the pair of side walls 24a and 24b. For example, a pair of L-shaped steel beams are arranged on the pair of first side walls 24a and 24b, spaced apart in the front-to-rear direction. One of the long end edges of each L-shaped steel beam is fixed to the outer surface of each of the pair of first side walls 24a and 24b by welding, riveting, or the like so that one of the long end edges is aligned in the up-down direction. Note that the length of the long end edge of the L-shaped steel beam is preferably shorter than the height of the pair of first side walls 24a and 24b, but is not limited to this. Furthermore, as shown in FIG. 3, the lower end of the long end edge of the L-shaped steel beam is preferably positioned higher than the lower ends of the pair of first side walls 24a and 24b. Although not shown, the lower ends of the long ends of the L-shaped steel may be flush with or positioned lower than the lower ends of the pair of first side walls 24a, 24b. Also, it is preferable that the upper ends of the long ends of the L-shaped steel are positioned lower than the upper ends of the pair of first side walls 24a, 24b. At least the lower ends of the long ends of the multiple L-shaped steels are positioned in the same position.

[0035] Each of the pair of mounting portions 28 of the L-shaped steel preferably has, for example, a first surface 28a parallel to the pair of side plates 26a, 26b and a second surface 28b parallel to the outer surfaces of the pair of first side walls 24a, 24b. A plurality of screw holes 28c are formed in the second surface 28b at predetermined intervals in the vertical direction. While an example of three screw holes 28c is shown in FIG. 3, two or four or more screw holes are also preferred. The screw holes 28c are preferably formed as female screw holes, for example, by tapping.

[0036] The lower ends of the pair of mounting portions 28 are placed on a support portion 120 provided between the vertical frames 102 and 104 of the housing 100 a of the rack 100 .

[0037] On the outer sides of the pair of side walls 24a, 24b, mounting portions 28 that are placed on the support portions 120 of the rack 100 are arranged at a distance in the front-rear direction. That is, although not shown in Figures 3 to 6 and 8 to 10, mounting portions 28 are formed not only on the right side surface but also on the left side surface when viewed from the front side of the subrack 10.

[0038] The mounting portion 28 is made of, for example, an L-shaped steel beam, which is a rectangular plate material bent into a substantially L-shape along a folding line in the vertical direction. Therefore, the mounting portion 28 has, for example, a first surface (front surface) 28a parallel to the side plates 26a, 26b, and a second surface (separating surface) 28b integrated with the first surface (front surface) 28a and parallel to the side walls 24a, 24b. The lower end of the mounting portion 28 is supported by the support portion 120 of the rack 100. The lower end of the mounting portion 28 is located above the lower ends of the pair of side walls 24a, 24b.

[0039] The pair of mounting portions 28 may be formed integrally with the pair of side walls 24a, 24b by cutting and raising each of the side walls 24a, 24b without using L-shaped steel. Also, the pair of side walls 24a, 24b and the pair of side plates 26a, 26b may be formed on the bottom plate 22 by bending each of the side walls 24a, 24b. Therefore, the first component 12 may be formed, for example, from a single plate.

[0040] Further, here, an example has been described in which a pair of mounting portions 28 use a pair of L-shaped steel beams that are spaced apart in the front-to-back direction of one of the pair of side walls 24a, 24b, and a pair of L-shaped steel beams that are spaced apart in the front-to-back direction of the other side wall 24b, but the number of L-shaped steel beams may be three or more for each.

[0041] The second component 14 has a ceiling plate 32, a pair of side walls (a pair of second side walls) 34a, 34b, and a pair of side plates (a pair of second fixing portions) 36a, 36b.

[0042] The ceiling panel 32 is formed as, for example, a substantially rectangular panel parallel to the mounting surface of the housing 100a of the rack 100. In this embodiment, the rectangular panel of the ceiling panel 32 has, for example, the same front-rear dimension as the bottom panel 22 and a width greater than the left-right dimension of the bottom panel 22. The left-right width of the ceiling panel 32 is greater than the left-right width of the bottom panel 22 by the size of the first surfaces 28a of the pair of mounting portions 28. The ceiling panel 32 is disposed opposite the bottom panel 22 of the first component 12 and covers the tops of various electronic devices. The ceiling panel 32 may be formed as a flat surface or a mesh-like surface. The ceiling panel 32 may also be formed as, for example, a rectangular parallelepiped box of appropriate thickness.

[0043] The pair of side walls 34a, 34b are respectively provided on the ceiling plate 32 and face each other. That is, the pair of side walls 34a, 34b are respectively provided so as to protrude downward from a pair of end faces of the ceiling plate 32 and face each other.

[0044] The second component 14 has a rectangular parallelepiped space whose front, rear, and bottom sides are open by the ceiling panel 32 and the pair of side walls 34a, 34b, and into which electronic devices are inserted and removed, for example, from the front side. The size of the rectangular parallelepiped space of the second component 14 in the front-to-rear direction is the same as the size of the rectangular parallelepiped space of the first component 14 in the front-to-rear direction. Meanwhile, the size of the rectangular parallelepiped space of the second component 14 in the left-to-right direction is larger than the size of the rectangular parallelepiped space of the first component 14 in the left-to-right direction. Furthermore, the size of the rectangular parallelepiped space of the second component 14 in the up-to-down direction is smaller than the size of the rectangular parallelepiped space of the first component 14 in the up-to-down direction.

[0045] Screw holes 35 are formed in the pair of side walls 34a, 34b at the same intervals as the screw holes 28c. In this embodiment, the one or more screw holes 35 are formed at positions such that when the second component 14 is properly positioned with respect to the first component 12, they coincide with and overlap the one or more screw holes 28c, allowing screws to be inserted into the screw holes 28c, 35. Note that the intervals between these through holes 28c and between the through holes 35 do not have to be an integer multiple of the intervals between the screw openings 118 of the vertical frame 102.

[0046] When the pair of second side walls 34a, 34b of the second component 14 are disposed outward relative to the pair of first side walls 24a, 24b of the first component 12, the lower ends of the pair of mounting portions 28 that are supported by the support portions 120 of the rack 100 are disposed lower than the lower ends of the pair of second side walls 34a, 34b. The pair of second side walls 34a, 34b are fixed to the pair of mounting portions 28 with screws.

[0047] Furthermore, when the pair of second side walls 34a, 34b of the second component 14 are disposed outward relative to the pair of first side walls 24a, 24b of the first component 12, the pair of mounting portions 28 of the first component 12 form a space between the pair of first side walls 24a, 24b of the first component 12 and the pair of second side walls 34a, 34b of the second component 14. This space prevents the tip of the screw from entering the rectangular parallelepiped space of the first component 12.

[0048] The pair of side plates 36a, 36b protrude from the end face (front end face) of the pair of side walls 34a, 34b on the side where electronic devices are inserted and removed below the ceiling plate 32 between the pair of second side walls 34a, 34b toward the outside of the pair of second side walls 34a, 34b. The pair of side plates 36a, 36b preferably have a portion formed parallel to a plane formed by the up-down direction and the left-right direction. The pair of side plates 36a, 36b are formed as approximately rectangular plates that follow the plane defined by the up-down direction and the left-right direction.

[0049] Each of the pair of side plates 36a, 36b includes a first wall portion 37a on the ceiling plate 32 side, a second wall portion 37b that is farther away from the ceiling plate 32 than the first wall portion 37a, and a connecting portion 37c.

[0050] The first wall portion 37a abuts against the vertical frame 102 when the second component 14 is fixed to the vertical frame 102 of the housing 100a of the rack 100. The second wall portion 37b is placed on the rear side of the first pair of side plates 26a, 26b of the first component 12 when the second component 14 is fixed to the vertical frame 102 of the housing 100a of the rack 100.

[0051] The connecting portion 37c connects the first wall portion 37a and the second wall portion 37b so as to separate the second wall portion 37b from the vertical frame 102 when the second component 14 is fixed to the vertical frame 102 of the housing 100a of the rack 100. When the second wall portion 37b (on the vertical frame 102 side) and the pair of side plates (fixing portions) 26a, 26b of the first component 12 are overlapped, the connecting portion 37c forms a step that positions the surface of the first wall portion 37a that abuts against the vertical frame 102 flush with the surfaces of the pair of side plates 26a, 26b that abut against the vertical frame 102 when fixed to the vertical frame 102. That is, the connecting portion 37c projects the second wall portion 37b toward the near side (-Y direction) relative to the first wall portion 37a when viewed from the front side by the thickness of the pair of side plates 26a, 26b of the first component 12.

[0052] Note that, for example, one through hole 38 is formed in each of the first wall portions 37a of the pair of side plates 36a, 36b. For example, two through holes 38 are formed in each of the second wall portions 37b of the pair of side plates 36a, 36b. The pair of side plates 36a, 36b have a plurality of through holes 38 at intervals corresponding to an integer multiple (including 1) of the interval between the screw openings 118 of the vertical frame 102. The three through holes 38 in each of the side plates 36a, 36b are arranged at intervals corresponding to the screw openings 118. The pair of side plates 36a, 36b are fixed to the vertical frame 102 of the housing 100a of the rack 100 by passing screws through the through holes 38 and fastening them to the screw openings 118 of the vertical frame 102 of the housing 100a of the rack 100. Figure 3 shows an example in which three through holes 38 are arranged along the vertical direction of each side plate 36a, 36b, but it is also preferable to arrange four or more through holes 38, or one on each of the first wall portion 37a and the second wall portion 37b.

[0053] It is also possible that the pair of side walls 34a, 34b and the pair of side plates 36a, 36b including the connecting portion 37c are formed by bending the ceiling plate 32. Therefore, the second component 14 may be formed from, for example, a single plate.

[0054] The assembly work of the subrack 10 according to this embodiment will be described below. Here, two examples of assembly will be described: one in which the height H of the accommodation portion 10a of the subrack 10 is set low (see FIGS. 4 to 7), and one in which it is set higher (see FIGS. 8 to 11).

[0055] First, an assembly example in which the height H of the accommodation section 10a of the subrack 10 is set low, and an example of fixing such a subrack 10 to the housing 100a of the rack 100 will be described with reference to FIGS.

[0056] As shown in FIG. 3, with the bottom plate 22 of the first part 12 placed on, for example, a horizontal surface, the pair of second side walls 34a, 34b of the second part 14 are arranged outside the pair of first side walls 24a, 24b of the first part 12, as shown in FIGS. 4 to 6.

[0057] Then, as shown in FIG. 7, the connecting portion 37c of the second part 14 is placed on the upper ends of the pair of side plates 26a, 26b of the first part 12, and the rear surfaces of the pair of side plates 26a, 26b of the first part 12 are made flush with the rear surfaces of the first wall portions 37a of the pair of side plates 36a, 36b of the second part 14.

[0058] In this state, screws (not shown) are passed through the screw holes 35 in the pair of side walls 34a, 34b of the second component 14 and the screw holes 28c in the second surfaces 28b of the pair of mounting portions 28 of the first component 12, and the tips of the screws are positioned in the space between the second surfaces 28b of the pair of mounting portions 28 of the first component 12 and the pair of first side walls 24a, 24b. Although not shown, in this embodiment, the second component 14 is fixed to the first component 12 at a total of 12 locations: six locations on the left side and six locations on the right side of the subrack 10. In this case, by appropriately setting the length of each screw, it is not necessary to drill screw holes in the pair of first side walls 24a, 24b.

[0059] Alternatively, nuts (not shown) may be placed in the space between the second surfaces 28b of the pair of mounting portions 28 of the first part 12 and the pair of first side walls 24a, 24b, and bolts (not shown) may be passed through the screw holes 35 of the pair of side walls 34a, 34b of the second part 14 and the screw holes 28c of the second surfaces 28b of the pair of mounting portions 28 of the first part 12, and the tips of the bolts may be fixed by the nuts in the space between the second surfaces 28b of the pair of mounting portions 28 of the first part 12 and the pair of first side walls 24a, 24b.

[0060] In this case, the accommodation section 10a of the subrack 10 formed by the first component 12 and the second component 14 is defined as a substantially rectangular parallelepiped space combining the substantially rectangular parallelepiped space of the first component 12 defined by the bottom plate 22 and the upper ends of the pair of side walls 24a, 24b, and the space defined by the upper ends of the pair of side walls 24a, 24b and the ceiling plate 32 of the second component 14. Note that the space defined by the upper ends of the pair of mounting portions 28 on the left side of the subrack 10, the ceiling plate 32 of the second component 14, and the side wall 34a of the second component 14, and the space defined by the upper ends of the pair of mounting portions 28 on the right side of the subrack 10, the ceiling plate 32 of the second component 14, and the side wall 34b of the second component 14 are also defined as spaces that can be used as the accommodation section 10a.

[0061] At least one of the two through holes 38 in the second wall portion 37b of the second component 14 communicates with at least one of the through holes 27 in the pair of side plates 26a, 26b of the first component 12. Therefore, while the pair of second side walls 34a, 34b of the second component 14 are screwed to the pair of first side walls 24a, 24b of the first component 12 at a total of 12 locations, screws may be temporarily inserted into one, several, or all of the overlapping portions of the through holes 27, 38. In this case, vertical positional misalignment between the pair of side plates 26a, 26b of the first component 12 and the pair of side plates 36a, 36b of the second component 14 can be suppressed.

[0062] In this subrack 10, the lower ends of the pair of mounting portions 28 of the first component 12 are lower than the lower ends of the pair of second side walls 34a, 34b of the second component 14. The width between the pair of vertical frames 102 of the housing 100a of the rack 100 is larger than the width between the outer sides of the pair of second side walls 34a, 34b of the subrack 10, but is formed to a size that allows the pair of side plates 26a, 26b of the first component 12 and the pair of side plates 36a, 36b of the second component 14 to abut against the pair of vertical frames 102 on the front side of the housing 100a of the rack 100. Therefore, the rear side of the subrack 10 is inserted between the pair of vertical frames 102 on the front side of the housing 100a of the rack 100. At this time, the lower ends of the pair of mounting portions 28 of the subrack 10 are placed on the support portions 120 of the rack 100 and are slid from the front side to the rear side.

[0063] 4 to 6, screws are inserted into the four through holes (the lowermost through hole 27, the uppermost through hole 38, and the two overlapping through holes 27, 38 between them) in the left side plates 26a, 36a and the right side plates 26b, 36b of the subrack 10, and are then screwed into the screw openings 118 of the vertical frame 102 to secure them in place. In this case, the screws that were temporarily inserted into the through holes 27, 38 can be used as they are.

[0064] At this time, the subrack 10 is fixed to the vertical frame 102 of the housing 100a of the rack 100 with the lower ends of the pair of mounting portions 28 of the subrack 10 supported on the support portions 120 of the rack 100, and the pair of side plates 26a, 26b of the first component 12 and the pair of side plates 36a, 36b of the second component 14 are fixed to the vertical frame 102 of the housing 100a of the rack 100.

[0065] Therefore, the subrack 10 is fixed to the housing 100a of the rack 100. In this state, appropriate electronic devices that fit the height H of the housing section 10a are inserted from the opening on the front side of the subrack 10 toward the housing section 10a and placed in the housing section 10a. The electronic devices may be fixed by screws or the like to the through holes 27 and 38. In this case, the same screws can be used to fix the subrack 10 to the housing 100a of the rack 100. The electronic devices may also be fixed to the bottom plate 22 of the subrack 10 by screws or the like. An operator can then route the power cables, signal lines, and the like of the electronic devices from the front side of the housing 100a of the rack 100 or from the rear side of the housing 100a of the rack 100.

[0066] Now, let's assume that the pair of side plates 36a, 36b of the second component 14 do not have the connecting portion 37c and that the pair of side plates 36a, 36b are each flat plates. Consider one side (the left side) of the subrack 10 as viewed from the front in the left-right direction. In this case, the side plate 26a of the first component 12 and the side plate 36a of the second component 14 are overlapped on the near side (negative Y-axis side) of the side plate 26a of the first component 12 as viewed from the front, and are then brought into close contact with the vertical frame 102 of the housing 100a of the rack 100, and the male screws are fastened to the screw openings 118. At this time, the side plate 36a of the second component 14 has portions that overlap with the side plate 26a of the first component 12 and portions that do not, so the side plate 36a of the second component 14 is bent relative to the vertical frame 102 and fastened in a loaded state. For this reason, when the height H of the accommodation portion 10a of the subrack 10 is adjusted after an appropriate time has passed, there is a possibility that the side plate 36a of the second component 14 will remain deformed. Therefore, the male screws are actually inserted into three locations: the through-hole 27 at the bottom of the first component 26a, and two locations where the through-hole 27 of the first component 26a and the through-hole 38 of the second component 36a overlap. At this time, with the side plate 26a of the first component 12 and the side plate 36a of the second component 14 fixed to the vertical frame 102, an appropriate gap is created between the rear side of the first wall portion 37a of the side plate 36a of the second component 14 and the vertical frame 102.

[0067] In contrast, the presence of the connecting portion 37c on the side plate 36a of the second component 14 prevents the side plate 36a of the second component 14 from remaining deformed when the subrack 10 is fixed to the vertical frame 102 of the housing 100a of the rack 100. Furthermore, when the side plate 26a of the first component 12 and the side plate 36a of the second component 14 are fixed to the vertical frame 102, the occurrence of an appropriate gap between the rear side of the side plate 36a of the second component 14 and the vertical frame 102 is suppressed.

[0068] Next, using Figures 3 and 8 to 11, we will explain an assembly example in which the height H of the storage section 10a of the subrack 10 is larger than the example shown in Figures 4 to 7, and an example of fixing such a subrack 10 to the housing 100a of the rack 100.

[0069] As shown in FIG. 3, with the bottom plate 22 of the first component 12 placed on, for example, a horizontal surface, the pair of second side walls 34a, 34b of the second component 14 are arranged outside the pair of first side walls 24a, 24b of the first component 12, as shown in FIGS. 8 to 10.

[0070] Then, as shown in FIG. 11, the connecting portion 37c of the second component 14 is positioned above the upper ends of the pair of side plates 26a, 26b of the first component 12, and the rear surfaces of the pair of side plates 26a, 26b of the first component 12 are flush with the rear surfaces of the first wall portions 37a of the pair of side plates 36a, 36b of the second component 14.

[0071] In this state, screws (not shown) are inserted through the lower two of the screw holes 35 in the pair of side walls 34a, 34b of the second component 14 and the upper two of the screw holes 28c in the second surfaces 28b of the pair of mounting portions 28 of the first component 12, with the tips of the screws being positioned in the space between the second surfaces 28b of the pair of mounting portions 28 of the first component 12 and the pair of first side walls 24a, 24b. Although not shown, in this embodiment, the second component 14 is fixed to the first component 12 at a total of eight locations: four locations on the left side and four locations on the right side of the subrack 10. In this case, by appropriately setting the length of each screw, it is not necessary to drill screw holes in the pair of first side walls 24a, 24b.

[0072] Alternatively, nuts (not shown) may be placed in the space between the second surfaces 28b of the pair of mounting portions 28 of the first part 12 and the pair of first side walls 24a, 24b, and bolts (not shown) may be passed through the screw holes 35 of the pair of side walls 34a, 34b of the second part 14 and the screw holes 28c of the second surfaces 28b of the pair of mounting portions 28 of the first part 12, and the tips of the bolts may be fixed by the nuts in the space between the second surfaces 28b of the pair of mounting portions 28 of the first part 12 and the pair of first side walls 24a, 24b.

[0073] In this case, the accommodation section 10a of the subrack 10 formed by the first component 12 and the second component 14 is defined as a substantially rectangular parallelepiped space combining the substantially rectangular parallelepiped space of the first component 12 defined by the bottom plate 22 and the upper ends of the pair of side walls 24a, 24b, and the space defined by the upper ends of the pair of side walls 24a, 24b and the ceiling plate 32 of the second component 14. Note that the space defined by the upper ends of the pair of mounting portions 28 on the left side of the subrack 10, the ceiling plate 32 of the second component 14, and the side wall 34a of the second component 14, and the space defined by the upper ends of the pair of mounting portions 28 on the right side of the subrack 10, the ceiling plate 32 of the second component 14, and the side wall 34b of the second component 14 are also defined as spaces that can be used as the accommodation section 10a.

[0074] At least one of the two through holes 38 in the second wall portion 37b of the second component 14 communicates with at least one of the through holes 27 in the pair of side plates 26a, 26b of the first component 12. Therefore, while the pair of second side walls 34a, 34b of the second component 14 are screwed to the pair of first side walls 24a, 24b of the first component 12 at a total of eight locations, screws may be temporarily inserted into one, several, or all of the overlapping portions of the through holes 27, 38. In this case, vertical positional misalignment between the pair of side plates 26a, 26b of the first component 12 and the pair of side plates 36a, 36b of the second component 14 can be suppressed.

[0075] The opening height H on the front side of the subrack 10 shown in FIGS. 8 to 11 can be made larger than the opening height H on the front side of the subrack 10 shown in FIGS.

[0076] Then, the lower ends of the pair of mounting portions 28 of the subrack 10 are placed on the support portions 120 of the rack 100 and slid from the front side to the rear side.

[0077] 8 to 10, screws are inserted into four of the five through holes on the left and right sides as viewed from the front side (the bottom-most through hole 27 and the through hole above it, the top-most through hole 38, and the single through hole formed by the overlapping through holes 27 and 38 between them), and are then screwed into the screw openings 118 of the vertical frame 102 for fixation. In this case, the screws that were temporarily inserted into the through holes 27 and 38 can be used as they are.

[0078] Of the five through holes on the left and right sides of the subrack 10 as viewed from the front side, it is preferable that no screw be provided in the second through hole 38 from the top. This is because inserting a screw into the second through hole 38 from the top could deform the second wall portion 37b of the side plate 36a of the second component 14. For this reason, in the example of the subrack 10 shown in FIGS. 8 to 10 , it is preferable that a screw be inserted into the uppermost through hole 38 of the second component 14 and the through hole 38 that overlaps with the third through hole 27 from the top, and that screws be inserted into the two lower through holes 27 of the first component 12 and the through hole 27 that overlaps with the third through hole 38 from the bottom, thereby fixing the subrack 10 to the vertical frame 102 of the rack 10.

[0079] At this time, the subrack 10 is fixed to the vertical frame 102 of the housing 100a of the rack 100 with the lower ends of the pair of mounting portions 28 of the subrack 10 supported on the support portions 120 of the rack 100, and the pair of side plates 26a, 26b of the first component 12 and the pair of side plates 36a, 36b of the second component 14 are fixed to the vertical frame 102 of the housing 100a of the rack 100.

[0080] Therefore, the subrack 10 is fixed to the housing 100a of the rack 100. In this state, appropriate electronic devices that fit the height H of the housing section 10a are inserted from the opening on the front side of the subrack 10 toward the housing section 10a and placed inside the housing section 10a. The electronic devices may also be fixed to the through holes 27 and 38. In this case, the same screws can be used to fix the subrack 10 to the housing 100a of the rack 100. The electronic devices may also be fixed to the bottom plate 22 of the subrack 10 by screws or the like. An operator can then route the power cables, signal lines, and the like of the electronic devices from the front side of the housing 100a of the rack 100, or from the rear side of the housing 100a of the rack 100.

[0081] As shown in Figures 1 and 2, an example is shown in which the subrack 10 shown in Figures 4 to 7 is arranged on the upper side and the subrack 10 shown in Figures 8 to 11 is arranged on the lower side in the housing 100a of the rack 100, but it goes without saying that these arrangements may be reversed.

[0082] As described above, the subrack 10 according to this embodiment is divided into the first component 12 and the second component 14, and is configured so that the second component 14 covers the first component 12. The position of the ceiling plate 32 of the second component 14 can be adjusted in the height direction relative to the bottom plate 22 of the first component 12, and the height H of the subrack 10 can be adjusted to an appropriate size according to the vertical size of the electronic device. Therefore, in this embodiment, an operator can assemble subracks 10 having accommodation sections 10a of various heights (sizes) H according to the vertical size of the electronic device, and there is no need to prepare subracks having accommodation sections of various heights (sizes).

[0083] Therefore, when assembling the subrack 10 of this embodiment using the first component 12 and the second component 14, the height (size) H of the storage section 10a can be the same or different depending on the electronic device to be stored in the storage section 10a.

[0084] When a worker installs the subrack 10 in the housing 100a of the rack 100, rails (support angles) serving as support portions 120 are attached between the vertical frames 102, 104 that extend vertically and are spaced apart from each other in the front and rear on both the left and right sides of the housing 100a of the rack 100, and the mounting portion 28 of the subrack 10 is placed on the rails serving as the support portions 120 and slid down to a predetermined position, thereby securing the subrack 10 to the housing 100a of the rack 100. In the subrack 10 according to this embodiment, as shown in FIGS. 4 and 8 , the lower end of the mounting portion 28 of the first component 12 can be placed on the rails serving as the support portions 120 for mounting. Therefore, it can be said that the workability when installing the subrack 10 in the housing 100a of the rack 100 is almost the same as in the conventional method.

[0085] In the present embodiment, an example has been described in which L-shaped steel beams spaced apart from each other in the front-to-rear direction are used as the pair of mounting portions 28, but for example, by welding one face of one L-shaped steel beam so that the longitudinal direction is along the front-to-rear direction, a horizontal surface along the front-to-rear direction may be mounted on the support portion 120 of the rack 100. Furthermore, such a horizontal surface may be formed by cutting and raising the pair of side walls 24a, 24b.

[0086] The screw holes 35 formed in the pair of side walls 34a, 34b of the second component 14 may not be simple screw holes, but may be configured to maintain an attached state with male screws that are used in a press-fitted state in the screw holes 35. In this case, the worker does not need to select male screws to be screwed into the screw holes 28c of the pair of mounting portions 28 of the first component 12.

[0087] In the subrack 10 of this embodiment, examples of the storage section 10a in Figures 4 to 7 and examples of the storage section 10a in Figures 8 to 11 have been described, but it is also possible to make the height H of the storage section 10a adjustable in three or more patterns, for example, by appropriately forming the first part 12 and the second part 14.

[0088] Therefore, according to this embodiment, an electronic device subrack 10 that can easily accommodate electronic devices of various heights, and an electronic device rack 100 that includes such a subrack 10 are provided.

[0089] (Second embodiment) A rack 100 including a subrack 10 according to the second embodiment will be described with reference to Fig. 12. This embodiment is a modified example of the first embodiment, and the same components as those described in the first embodiment or components having the same functions are denoted by the same reference numerals as much as possible, and detailed descriptions thereof will be omitted.

[0090] FIG. 12 is an exploded perspective view of an electronic device subrack 10 according to a second embodiment used in a rack 100 (see FIGS. 1 and 2). When the subrack 10 according to this embodiment shown in FIG. 12 is mounted on a rack 100 of the same specifications as the subrack 10 described in the first embodiment, the vertical size (height) of the pair of second side walls 34a, 34b of the second component 14 of the subrack 10 of the first embodiment is different in this embodiment. Also, the vertical size (height) of the L-shaped steel of the pair of mounting portions (one or more metal fittings) 28 of the first component 12 of the subrack 10 of the first embodiment is different in this embodiment.

[0091] As shown in FIG. 12, the vertical length of the pair of mounting portions 28 of the first component 12 is shorter than in the example shown in FIGS. 3 to 11. Furthermore, the substantially rectangular parallelepiped space along the vertical direction of the second component 14 has a smaller vertical height of the pair of side walls 34a, 34b than in the substantially rectangular parallelepiped space along the vertical direction of the second component 14 in the example shown in FIGS. 3 to 11. The number of screw holes 28c on the second surfaces 28b of the pair of mounting portions 28 of the first component 12 is two, and the number of screw holes 35 on the pair of side walls 34a, 34b of the second component 14 is also two. Therefore, the number of screw holes 28c, 38 can be set as appropriate.

[0092] Therefore, the number of screws for fastening the second component 14 to the first component 12 of the subrack 10 and the number of screws for fastening the subrack 10 to the housing 100a of the rack 100 can be set appropriately.

[0093] Therefore, according to this embodiment, an electronic device subrack 10 that can easily accommodate electronic devices of various heights, and an electronic device rack 100 that includes such a subrack 10 are provided.

[0094] (Third embodiment) A rack 100 including a subrack 10 according to the third embodiment will be described with reference to Fig. 13. This embodiment is a modified example of the first and second embodiments, and the same components as those described in the first and second embodiments or components having the same functions are denoted by the same reference numerals as much as possible, and detailed descriptions thereof will be omitted.

[0095] FIG. 13 is a schematic front view of the electronic device subrack 10 according to the third embodiment, which is used in the rack 100 (see FIGS. 1 and 2).

[0096] 3 to 6, a pair of side plates 26a, 26b are provided on the front side of the first component 12 of the subrack 10 according to the first embodiment, outside the substantially rectangular parallelepiped space of the first component 12. Furthermore, as shown in FIGS. 3 and 8 to 10, a pair of side plates 36a, 36b are provided on the front side of the second component 14 of the subrack 10, outside the substantially rectangular parallelepiped space of the second component 14. The side plate 26a of the first component 12 and the side plate 36a of the second component 14, and the side plate 26b of the first component 12 and the side plate 36b of the second component 14 are fixed together when the subrack 10 is fixed to the housing 100a of the rack 100.

[0097] 13, a pair of side plates (a pair of first protrusions) 29a, 29b bent toward (inward from) the rectangular parallelepiped space are provided on the rear side of the pair of side walls 24a, 24b of the first component 12 of the subrack 10 at the boundary of the substantially rectangular parallelepiped space of the first component 12. Of course, the pair of side plates 29a, 29b may be fixed to the rear side of the pair of side walls 24a, 24b by welding or the like. The pair of side plates 29a, 29b may be located inside or outside the substantially rectangular parallelepiped space of the first component 12.

[0098] Furthermore, a pair of side plates (a pair of second protrusions) 39a, 39b bent toward (inward from) the rectangular parallelepiped space are provided on the back side of the pair of side walls 34a, 34b of the second part 14 of the subrack 10 in the front-rear direction, at the boundary of the substantially rectangular parallelepiped space of the second part 14. Of course, the pair of side plates 39a, 39b may be fixed to the back side of the pair of side walls 34a, 34b by welding or the like. The pair of side plates 39a, 39b may be located inside or outside the substantially rectangular parallelepiped space of the second part 14.

[0099] Then, when the front side of side plate 26a of the first part 12 abuts against the back side of side plate 36a of the second part 14 and the front side of side plate 26b of the first part 12 abuts against the back side of side plate 36b of the second part 14, the pair of side plates 29a, 29b of the first part 12 abuts against the back sides of the pair of side plates 39a, 39b of the second part 14.

[0100] A plurality of through holes 29c, 39c are formed at a predetermined interval in the vertical direction in each of the pair of side plates 29a, 29b of the first component 12 and the pair of side plates 39a, 39b of the second component 14. The interval between these through holes 29c, 39c does not have to be an integer multiple of the interval between the screw openings 118 of the vertical frame 102. The through holes 29c, 39c may be formed as simple openings, or may be tapped and formed as female threads so that screws can be directly threaded into the through holes 29c, 39c.

[0101] One or more of these through holes 29c, 39c are fixed to each other using, for example, screws or bolts and nuts. Alternatively, one or more of these through holes 29c, 39c are fixed to each other using cable ties. In this manner, by using the pair of side plates 29a, 29b of the first component 12 and the pair of side plates 39a, 39b of the second component 14, the subrack 10 can be placed in the housing 100a of the rack 100 while suppressing misalignment between the first component 12 and the second component 14 of the subrack 10, without temporarily fastening them using screws, by placing the side plate 26a of the first component 12 on the back side of the side plate 36a of the second component 14 of the subrack 10 and placing the side plate 26b of the first component 12 on the back side of the side plate 36b of the second component 14. Then, screws are passed through the through holes 27, 38 of the subrack 10 and the screw openings 118 of the housing 100a of the rack 100, thereby fixing the subrack 10 to the housing 100a of the rack 100. At this time, the subrack 10 is fixed to the vertical frame 102 of the housing 100a of the rack 100 in a state where the rear surfaces of the pair of side plates 26a, 26b of the first component 12 and the rear surfaces of the first wall portions 37a of the pair of side plates 36a, 36b of the second component 14 are flush with each other. Therefore, the subrack 10 is fixed stably to the housing 100a of the rack 100 with rattle suppressed.

[0102] On the other hand, an opening is secured on the rear side of each subrack 10. This reduces the impact on routing of various cables, etc. Also, various cables, etc. of electronic devices may be bound to the through holes 29c, 39c.

[0103] In the example shown in Figure 13, by appropriately adjusting the height H of the ceiling plate 32 of the second component 14 relative to the bottom plate 22 of the first component 12 and adjusting the number of overlapping through holes 29c, 39c, it is possible to provide an electronic device subrack 10 that can easily accommodate electronic devices of various heights, and an electronic device rack 100 that has such a subrack 10.

[0104] According to at least one of the embodiments described above, it is possible to provide an electronic device subrack 10 that can easily accommodate electronic devices of various heights, and an electronic device rack 100 that includes such a subrack 10.

[0105] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0106] 10...electronic device subrack, 10a...storage section, 12...first component, 14...second component, 22...bottom plate, 24a, 24b...first side wall, 26a, 26b...first side plate, 27...through hole, 28...mounting section, 28a...first surface, 28b...second surface, 28c...screw hole, 32...ceiling plate, 34a, 34b...second side wall, 35...screw hole, 36a, 36b...second side plate, 37a...first wall section, 37b...second wall section, 37c...connecting section, 38...through hole (screw hole), 38...through hole, 100...electronic device rack, 102, 104...vertical frame, 106...width frame, 108...front and rear frames, 110...width frame, 112...front and rear frames, 118...screw opening, 120...support section.

Claims

1. a base plate on which various electronic devices are placed; a pair of first side walls respectively provided on the bottom plate and facing each other; a pair of first fixing portions that protrude from end faces of the bottom plate between the pair of first side walls on the side where the electronic device is inserted and removed toward outside the pair of first side walls and are fixed to a frame of the electronic device rack; and a pair of mounting portions provided on outer surfaces of the pair of first side walls, respectively, and mounted on supports provided on the frame of the electronic equipment rack; a first part having a ceiling plate disposed opposite the bottom plate; a pair of second side walls that are respectively provided on the ceiling board, face each other, and form, together with the ceiling board and the first component, a housing portion that houses the electronic device; and a pair of second fixing portions that protrude from end faces of the pair of second side walls on the side where the electronic device is inserted and removed between the pair of second side walls toward the outside of the pair of second side walls, and are fixed to the frame of the electronic device rack by adjusting the height of the ceiling plate relative to the bottom plate of the first component; and a second part having A subrack for electronic devices comprising:

2. The pair of second fixing portions each include: a first wall portion on the ceiling panel side that abuts against the frame when fixed to the frame; a second wall portion that is spaced apart from the ceiling board more than the first wall portion and that is overlapped with the first fixing portion; a connecting portion that connects the first wall portion and the second wall portion so that the second wall portion is spaced apart from the frame more than the first wall portion when fixed to the frame, and that forms a step that positions a surface of the first wall portion that abuts against the frame flush with a surface of the first fixing portion that abuts against the frame when fixed to the frame when the second wall portion and the first fixing portion are overlapped; Equipped with The subrack for electronic devices according to claim 1 .

3. When the pair of second side walls are disposed outward relative to the pair of first side walls, lower ends of the pair of mounting portions supported by the support portion are disposed below lower ends of the pair of second side walls. The subrack for electronic devices according to claim 1 or 2.

4. The pair of second side walls are fixed to the pair of mounting portions. The subrack for electronic devices according to claim 3 .

5. The pair of mounting portions form spaces between the pair of first side walls and the pair of second side walls, respectively. The subrack for electronic devices according to claim 1 or 2.

6. the first component includes a pair of first protrusions protruding toward the accommodating portion from end faces of the pair of first side walls opposite to the end faces on which the pair of first fixing portions are provided, the second component includes a pair of second protruding portions that protrude toward the accommodating portion from end faces of the pair of second side walls opposite to the end faces on which the pair of second fixing portions are provided, and are fixed to the pair of first protruding portions; The subrack for electronic devices according to claim 1 or 2.

7. A subrack for electronic devices according to claim 1 or 2; a housing having a pair of vertical frames extending in the up-down direction and spaced apart from each other by a distance greater than the width between the outer sides of the pair of second side walls, the pair of first fixing portions and the pair of second fixing portions being overlapped and fixed; a support portion provided in the housing, on which the pair of mounting portions of the electronic device subrack are placed and supported; An electronic equipment rack having:

Images