JP7599783B2 - Cabinets for electrical and electronic equipment - Google Patents

Description

The present invention relates to a cabinet for storing electrical and electronic equipment.

When using cabinets, switchboards, and distribution boards that house communication devices and servers, work such as wiring to connect the devices housed inside the cabinet is carried out. Many parts are used for this work, but Patent Document 1 describes a structure that can secure wiring and wiring guide parts using wiring restraint rails provided on the inside side of the cabinet.

JP 2016-208617 A

Wiring work is often carried out after the electrical and electronic equipment is stored inside the cabinet, but once the electrical and electronic equipment is stored inside the cabinet, work becomes difficult. It is particularly difficult to work at the back of the cabinet (the rear panel side). For example, when trying to screw a wiring guide member to a wiring restraint rail on a side panel, a tool such as a screwdriver must be held vertically against the cabinet side panel, but this type of work is difficult in places with limited working space.

The inventor of this invention has thoroughly investigated this issue and attempted to solve it. The problem that this invention aims to solve is to provide a cabinet for storing electrical and electronic equipment that makes wiring easy.

To solve the above problem, the cabinet for storing electrical and electronic equipment has a back panel, side panels rising from the back panel, and a front opening, and is equipped with a back rail having a mounting surface with multiple mounting holes in the longitudinal direction for mounting wiring restraints that restrain the wiring, and the back rail is arranged along the back panel so that the mounting surface is inclined toward the front opening.

It is also preferable that a rail mounting member is attached to the rear panel or the side panel, and the support surface of the rail mounting member that supports the rear rail is inclined toward the front opening.

It is also preferable to have the rail mounting member attached to the back plate and the side plate.

It is also preferable to have a front rail with multiple mounting holes around the periphery of the front opening, and a wiring restraint section that spans the front rail and the rear rail.

It is also preferable that the wiring restraint portion has a locking portion at one end that locks into the mounting hole, and a fixing portion at the other end for fixing.

In addition, it is preferable that the wiring restraint portion has a main body portion extending between the locking portion and the fixed portion, and that the main body portion is positioned closer to the side plate portion than the locking portion and the fixed portion.

The present invention makes it possible to provide a cabinet for storing electrical and electronic equipment that makes wiring easy.

1 is a perspective view of a cabinet for storing electric and electronic equipment according to an embodiment; 1 is a perspective view of a housing body of a cabinet for storing electric/electronic equipment according to an embodiment, as viewed from the diagonally front left side. 1 is a perspective view of a housing body of a cabinet for storing electric/electronic equipment according to an embodiment, as viewed from the diagonally front right side. 1 is a perspective view of a rear rail in an embodiment, with the intermediate portion in the longitudinal direction being omitted. 3 is a diagram showing a state in which a part of a side plate portion and a rear rail of FIG. 2 have been removed. 6 is a partial enlargement of region VI in FIG. 5 . 6 is a partial enlargement of region VII of FIG. 5 . FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 2 . 13 is a diagram showing a state in which a modified example of the rear rail is attached to a corner of the housing body. FIG. 10 is a diagram showing a state in which a modified example of the rear rail different from that shown in FIG. 9 is attached to a corner of the housing main body. 1 is a perspective view of a front rail in an embodiment, with a portion thereof omitted. FIG. 2 is a perspective view of a wiring guide member according to the embodiment. 13 is a side view of the wiring guide member shown in FIG. 12. This is a cross-sectional view taken along the line XIV-XIV in Fig. 2, however, the protective plate hinge portion is omitted. FIG. 13 is a perspective view of a modified example of the wiring guide member. 16 is a perspective view of the wiring guide member shown in FIG. 15 as viewed from the opposite side. Fig. 16 is a diagram showing an example in which the wiring guide member shown in Fig. 15 is attached to a rear rail, but is a perspective view of a part of a housing main body. Fig. 16 is a cross-sectional view of a portion of the housing main body, showing an example in which the wiring guide member shown in Fig. 15 is attached to a rear rail. 1 is an exploded perspective view of the front rail and the protective plate hinge, with the longitudinal middle portion of the front rail being omitted. 1 is a cross-sectional view showing a state in which a protective plate hinge part of an embodiment is fixed to a front rail, where the protective plate hinge part is located at the upper side. 1 is a cross-sectional view showing a state in which a protective plate hinge part of an embodiment is fixed to a front rail, where the protective plate hinge part is located on the lower side. 1 is an exploded perspective view of the front rail and the protective plate receiving portion, with the longitudinal middle portion of the front rail being omitted. 1 is a perspective view of an embodiment of a cabinet for storing electric/electronic equipment in a lying position; FIG. 24 is a diagram showing a part of the internal structure when cut along the XXIV plane in FIG. 23.

The following is an embodiment of the invention. As can be seen from Figs. 1 to 4, the cabinet 1 for storing electrical and electronic equipment of this embodiment includes a back panel 11, side panels 12 rising from the back panel 11, and a front opening 13. The cabinet 1 for storing electrical and electronic equipment includes a back rail 50 having a mounting surface 52 with a plurality of mounting holes 51 in the longitudinal direction to which a wiring restraint for restraining wiring can be attached, and the back rail 50 is arranged along the back panel 11 so that the mounting surface 52 is inclined toward the front opening 13. This makes it possible to provide a cabinet 1 for storing electrical and electronic equipment that is easy to perform wiring work.

Here, the cabinet 1 for storing electric and electronic equipment according to the embodiment will be described. The cabinet 1 for storing electric and electronic equipment according to the embodiment includes a housing body 10 having a front opening 13, and a door 21 connected to the housing body 10 by a door hinge part 20. The housing body 10 and the door 21 form the outer shape of the cabinet 1 for storing electric and electronic equipment. The housing body 10 also includes a back plate part 11 located on the rear side, a side plate part 12 rising from the back plate part 11, and a front opening 13. The front opening 13 is located on the front side of the housing body 10 and spreads over almost the entire surface. In the example shown in FIG. 1, a rotatable protective plate 22 is provided inside the housing body 10. This protective plate 22 ensures the safety of the operator even when the door 21 is opened.

The electrical/electronic equipment storage cabinet 1 of the embodiment has a rear rail 50 arranged along the rear panel 11. This rear rail 50 has a plurality of mounting holes 51 for attaching wiring restraints that restrain the wiring, and more specifically, has a mounting surface 52 on which a plurality of mounting holes 51 are arranged along the longitudinal direction of the rear rail 50. This rear rail 50 is fixed to the housing body 10 so that the mounting surface 52 is inclined toward the front opening 13.

In the embodiment, the rear rail 50 is arranged to extend vertically near the right corner and the left corner of the rear side of the housing body 10, but this is not limited to the configuration. For example, the rear rail 50 may be arranged only on the right side or the left side. Also, multiple rear rails 50 may be arranged in a vertical line.

In addition, in the embodiment, a rail mounting member 31 is used to fix the rear rail 50 to the housing body 10. In the example shown in Figs. 5 to 8, the rail mounting member 31 is attached to the rear plate portion 11 and the side plate portion 12 of the housing body 10. If the rail mounting member 31 is attached so as to straddle the rear plate portion 11 and the side plate portion 12, the force supporting the rear rail 50 can be increased. Note that when attaching the rail mounting member 31, various means such as welding or screwing can be used.

As can be seen from FIG. 8, the rail mounting member 31 of the embodiment is configured so that the support surface 32 that supports the rear rail 50 is inclined toward the front opening 13. The rear rail 50 can be attached to the support surface 32 of the rail mounting member 31 so that it faces the support surface 32. Note that the support surface 32 of the embodiment is provided with a fastening hole into which a male screw can be inserted. The fastening hole of the embodiment is provided with a female thread portion, so that it can be screwed into a male screw.

In this way, by attaching the rear rail 50 to the housing body 10 via the rail mounting member 31, the rear rail 50 does not need to have a complex shape, and can be arranged at an angle toward the front opening 13. Note that, as can be seen from Figure 4, the rear rail 50 in this embodiment has a cross section that is roughly U-shaped.

In the configuration of the rail mounting member 31 shown in Figures 5 to 8, the support surface 32, the surface 33 attached to the back plate portion 11, and the surface 34 attached to the side plate portion 12 extend from the approximately pentagonal connecting portion 35 at an angle of approximately 90 degrees, but this configuration is not necessary and various configurations are possible.

As can be seen from this example, in order to avoid making the rear rail 50 complex in shape, it is preferable to provide a rail mounting member 31 on the rear plate 11 or the side plate 12, and to configure the support surface 32 of the rail mounting member 31 that supports the rear rail 50 to be inclined toward the front opening 13. However, the rear rail 50 may be directly fixed to the housing body 10 without using the rail mounting member 31. In this case, the rear rail 50 may also be in various forms. For example, in the rear rail 50 of the example shown in FIG. 9, a plate-shaped member is bent so that the cross section is approximately triangular. In another example of the rear rail 50 shown in FIG. 10, the surface attached to the rear plate 11 and the surface attached to the side plate 12 are configured to be located outside the mounting surface 52.

In these examples, the rail mounting member 31 and the rear rail 50 are fixed to both the rear plate portion 11 and the side plate portion 12, but they may be fixed to either one. In addition, multiple rear rails 50 may be arranged in a vertical line.

In the embodiment, the mounting holes 51 on the rear rail 50 are square and circular holes that are arranged in a row with a gap between them. By arranging holes of multiple shapes in a row in this way, the range of options for what can be attached to the rear rail 50 can be expanded. Of course, the hole shapes do not need to be limited to those described above.

In the embodiment, the front side of the housing body 10 is provided with a front side rail 60. The front side rail 60 has a plurality of mounting holes 61 to which a wiring restraint device for restraining wiring can be attached. In the embodiment, the front side rail 60 is configured in the same way as the rear side rail 50, with rectangular holes and circular holes spaced apart and aligned in a row.

The front rail 60 in the example shown in FIG. 11 has a generally U-shaped cross section, and one side has multiple mounting holes 61 for attaching wiring restraints that restrain the wiring. In the embodiment, the front rail 60 is fixed to the periphery of the front opening 13. More specifically, the front rail 60 is fixed so that it is located behind (inside the housing body 10) the bent portion 14 formed by bending the tip of the side plate portion 12 rising from the back plate portion 11 (see FIG. 8). Note that any method for fixing the front rail 60 may be used. For example, the front rail 60 and the bent portion 14 or the side plate portion 12 may be fixed using a welding machine or screws.

When fixing the front rail 60, it is better to fix the surface closer to the surface with the mounting holes 61 to maintain strength, and deformation of the front rail 60 can be suppressed even if force is applied to a wiring restraint device attached to the mounting holes 61.

The front rail 60 does not necessarily have to have a generally U-shaped cross section. For example, it may have a generally L-shaped cross section. In this case, one side may have a mounting hole 61, and the other side may be fixed to the housing body 10 using a welding machine or screws.

A wiring restraint is attached to the mounting hole 51 provided in the rear rail 50. For example, a cable tie (not shown) that serves as the wiring restraint can be passed through the mounting hole 51 to restrain the wiring. In the present invention, the mounting surface 52 of the rear rail 50 is inclined toward the front opening 13, making this type of installation work easier.

The wiring restraint portion attached to the rear rail 50 does not need to be a cable tie. In the example shown in FIG. 1 etc., a wiring guide member 70 is used as the wiring restraint portion. The wiring guide member 70 of the embodiment has a locking portion 71 on one side that is used to lock into the mounting hole 61, and a fixing portion 72 on the other side that is used to fix into the mounting hole 51. These are used to attach the wiring guide member 70 so that it spans the front rail 60 and the rear rail 50.

The wiring guide member 70 in the example shown in Figures 12 to 14 has a hook-shaped locking portion 71 at one end and a hole-shaped fixing portion 72 at the other end. This locking portion 71 is locked to the end of the square mounting hole 61 of the front rail 60, and a screw is inserted into the round mounting hole 51 of the rear rail 50 and the fixing portion 72 to fasten and fix the wiring guide member 70 in a state where it is suspended between the front rail 60 and the rear rail 50. By providing the locking portion 71 that locks into the mounting hole 61 at one end of the wiring restraint portion in this way, and providing the fixing portion 72 for fixing at the other end, the efficiency of the work can be improved.

In this embodiment, the wiring guide member 70 can be fixed by hooking one end of the wiring guide member 70 to regulate its position, and then screwing the other end. Therefore, the time required for the work is essentially the time required to screw in one place, making the work efficient.

In addition, in this embodiment, the end of the wiring guide member 70 on the side where the fixing portion 72 is provided is inclined to match the rear rail 50. In other words, the rear rail 50 and the fixing portion 72 are inclined toward the front opening 13, making it easier to use tools such as a screwdriver.

The wiring guide member 70 may be fixed in a state in which it is hung between the front rail 60 and the rear rail 50 by engaging the locking portion 71 with the end of the square mounting hole 51 of the rear rail 50 and inserting a screw into the round mounting hole 61 and the fixing portion 72 of the front rail 60 and tightening the screw. In this case, it is not necessary to make the end of the wiring guide member 70 on the side where the fixing portion 72 is provided inclined. In this way, the front rail 60 connected to the side where the fixing portion 72 is provided is fixed to the periphery of the front opening 13, making it easier to fix the wiring guide member 70 to the front rail 60.

As described above, in the embodiment, the periphery of the front opening 13 is provided with a front rail 60 having multiple mounting holes 61, and the wiring guide member 70 is provided across the front rail 60 and the rear rail 50. Therefore, it is possible to select the mounting hole to be used to fix the wiring guide member 70 from among the multiple mounting holes provided in the length direction of the front rail 60 and the rear rail 50. In other words, the degree of freedom in selecting the fixing position of the wiring guide member 70 can be increased. Note that in the embodiment, changing the position of the wiring guide member 70 can be easily performed since the amount of work required to change the position of the wiring guide member 70 is essentially the same as loosening and tightening one screw.

The wiring guide member 70 of the embodiment includes a main body portion 73 extending between the locking portion 71 and the fixed portion 72. As can be seen from FIG. 14, when the wiring guide member 70 is attached to the rear rail 50, the main body portion 73 is configured to be positioned closer to the side plate portion 12 than the locking portion 71 and the fixed portion 72. This makes it possible to ensure a space in which the wiring can be positioned up to a position close to the side plate portion 12. This makes it possible to increase the space for storing the wiring that is restrained by the wiring guide member 70.

However, the wiring guide member 70 does not necessarily need to abut against the front rail 60. For this reason, as in the example shown in Figures 15 to 18, a structure in which a member with a roughly L-shaped cross section is attached to the rear rail 50 may be used. In the example shown in Figures 15 to 18, the wiring guide member 70 is duct-shaped with multiple arms 75 arranged in a comb shape. With a duct shape, even if there are a lot of wires, they can be restrained by being brought close to the side of the cabinet.

As can be seen from FIG. 1, the electrical and electronic equipment storage cabinet 1 may be provided with a protective plate 22. This protective plate 22 is mainly attached to cover conductive parts when the electrical and electronic equipment storage cabinet 1 is used as a switchboard or distribution board.

As can be seen from Figures 19 to 22, in this embodiment, the protective plate hinge portion 24 that receives the hinge provided on the protective plate 22 and the protective plate receiving portion 26 that receives the latch lock 25 provided on the protective plate 22 are attached to the front rail 60. In this embodiment, they are fixed to the front rail 60 using screws 27 and are removable. In this way, it is preferable that the protective plate hinge portion 24 and the like are configured to be removable as needed.

In the embodiment, the protective plate hinge portion 24 and the protective plate receiving portion 26 are both formed by bending a portion provided on one side of the member to form an insertion piece 28. This insertion piece 28 is made to be insertable into the mounting hole 61 provided in the front rail 60, and after insertion, it is moved along the front rail 60 to restrict movement in a direction perpendicular to the direction of movement. To make this possible, a gap of about the thickness of one side of the front rail 60 is provided between the tip side of the insertion piece 28 and the side of the member. Note that the insertion piece 28 in the embodiment is formed by bending a tongue provided near the center of one side of the member, and the base end of the tongue is located at the end of an opening provided on one side of the member.

The insert piece 28 of the embodiment is provided with a fastening hole 29 into which the screw 27 can be inserted. In the embodiment, when the insert piece 28 is inserted into the square mounting hole 61 of the front rail 60 and moved downward, the fastening hole 29 of the insert piece 28 and the round mounting hole 61 of the front rail 60 are aligned, and the screw 27 can be inserted and attached. In this way, if the base end of the insert piece 28 is configured to be positioned higher than the tip, when the insert piece 28 is inserted into the mounting hole 61, it moves downward under its own weight, so that it can be prevented from falling even before the screw 27 is inserted and attached, making the work easier.

The area that the protective plate 22 shown in FIG. 1 covers over the equipment is configured to be approximately the same as the area of the front opening 13 as viewed from the front, but the protective plate 22 does not necessarily have to have such a corresponding area. For this reason, multiple protective plates 22 may be arranged spaced apart to match the positions of the conductive parts. In this way, the protective plate 22 does not necessarily have to have only one shape, but if the protective plate hinge portion 24 and protective plate receiving portion 26 are configured so that they can be appropriately attached to the front rail 60, various shapes of the protective plate 22 can be accommodated.

Generally, electrical/electronic equipment storage cabinets 1 are designed so that the user can operate the handle 81 to move the locking piece 82, and the door 21 cannot be opened if the locking piece 82 fits into a notch or the like. In order to form a portion for fitting the locking piece 82, in this embodiment, the front rail 60 is provided with a locking engagement portion 63 into which the locking piece 82 can fit (see Figures 23 and 24). In this way, it is not necessary to provide a notch in the housing body 10 for fitting the locking piece 82, and waterproofing can be maintained.

The present invention has been described above using examples of embodiments, but the present invention is not limited to the above-mentioned embodiments and can be implemented in various forms. For example, it can be applied to a double-door cabinet for storing electrical and electronic equipment, rather than a single-door cabinet.

REFERENCE SIGNS LIST 1 Cabinet for storing electrical and electronic equipment 11 Rear plate portion 12 Side plate portion 13 Front opening portion 31 Rail mounting member 32 Support surface 50 Rear rail 51 Mounting hole 52 Mounting surface 60 Front rail 71 Locking portion 72 Fixing portion 73 Main body portion

Claims (3)

A cabinet for storing electrical and electronic equipment, comprising a rear panel, side panels rising from the rear panel, and a front opening, the cabinet further comprising a rear rail having an attachment surface with a plurality of attachment holes in the longitudinal direction to which a wiring restraint for restraining wiring can be attached, the rear rail being disposed along the rear panel such that the attachment surface is inclined toward the front opening,
a front rail having a plurality of mounting holes on a periphery of the front opening;
A cabinet for storing electrical and electronic equipment, comprising a wiring restraint portion spanning the front rail and the rear rail. 2. The cabinet for storing electric/electronic equipment according to claim 1 , wherein the wiring restraining portion has a locking portion at one end for locking into the mounting hole and a fixing portion at the other end for fixing. 3. The cabinet for storing electrical and electronic equipment according to claim 2, wherein the wiring restraining portion comprises a main body portion extending between the locking portion and the fixing portion, the main body portion being located closer to the side plate portion than the locking portion and the fixing portion.

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