JP2014150605A - Door for electrical machine case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in which the number of attachment processes is increased and workability is worsened because a rail for attaching electrical appliances to a rear surface of a door for an electrical machine case consists of a rail body and a rail support.SOLUTION: In a door for an electrical machine case equipped with electrical appliances on a door rear surface, an integrated rail 11 with a substantially H-shape cross section is formed by a pair of appliance attachment screen members 11A, 11B provided with longitudinal attachment side surface parts for detachably attaching wire supports 2 with a predetermined interval on the outer side wall and longitudinal attachment end edge parts for properly attaching control appliances to the upper end part in accordance with the specification, and a support member 11C which is provided between the inner side walls of the appliance attachment screen members and integrally connects the appliance attachment screen members, elliptical attachment holes 11e are provided on both extended ends of the support member of the integrated rail, and the integrated rail 11 is mounted directly to the door rear surface or indirectly via a frame 3 with a fastening fixture inserted to the elliptical attachment hole.

Description

  The present invention relates to a door for an electrical equipment housing employed in a switchboard, a control panel and the like.

Many rails, rail supports, and ducts are used in the appliance mounting range on the back side of the door for the electrical equipment housing in order to mount the appliance.
For example, in the conventional door shown in FIG. 8, when the control instrument 105 is mounted on the back side of the electric device housing door 100, the Z-shaped frame 102 and the horizontal frame 102 arranged in the vertical direction of the door are taken into account due to the installation and wiring work. The control device and the rail were attached by a combination of the fixture mounting rails 101 arranged in the direction (width direction).

Patent Document 1 proposes an arrangement body that can easily perform the work of attaching a light-weight shaped steel material to a predetermined position.
Patent Document 2 proposes a distribution board frame in which different types of objects having different lengths can be made by combining three distribution board frames.

  In Patent Document 3, as a switchboard door that is attached to a housing and can be easily attached, rearranged, and added, a frame for attaching a control device is eliminated, and it is formed in a bar shape and has an arbitrary lateral direction. And a frame having a vertically movable mechanism that is formed in a frame shape and holds the device mounting bar in a state in which the device mounting bar can be held at any position in the vertical direction. A switchboard door has been proposed.

  Also, in FIG. 4 of Patent Document 4, a mounting member made of a panel-like metal material or insulating material is fixed to the door via a mounting frame on the back surface of the door, and the vertical center of the mounting member is approximately centered. The auxiliary relay group is fixed in a horizontal direction, the first horizontal wiring duct is at the upper part of the auxiliary relay group, and the second horizontal wiring duct is at the lower part of the auxiliary relay group. A switchboard has been proposed that has a mounting height from the back surface of the door that is fixed at a height equivalent to that of the second wiring duct.

JP 2008-92646 A Utility Model Registration No. 3009355 JP 2012-39808 A JP 2011-24359 A

In the conventional electrical equipment housing door 100 shown in FIG. 8, although the rail body 101A and the rail support 101B are often used as a set, they are separated from each other. Since the work of attaching the rail support 101B on the Z-shaped frame 102 and mounting the rail body 101A on the rail support 101B was repeated one step, the workability deteriorated.
Although not shown in the figure, even if there is an instrument that is directly attached to the rail support 101B without using the rail body 101A, it is necessary to fix the rail support 101B and the rail body 101A before attaching the equipment. The rail support 101B is attached to the frame 102, the rail body 101A is attached thereon, and then the appliance is attached.

  Further, the duct D for storing the wiring of the appliance is also attached to the rail support 101B on the Z-shaped frame 102 and the duct D is attached to the Z-shaped frame 102 in the same manner as the procedure for attaching the appliance. However, it is forced to be reduced by the duct D.

  In addition, since the duct D accommodates wiring, the wiring extends in the vertical direction from many control devices. Therefore, the duct D is also installed at two locations in the vertical direction at a distance from the control device so as not to contact the control device. There is a need to do. For this reason, the range in which the appliance is mounted and the range corresponding to the size of the duct D interfere with the installation of many control instruments, and the appliance mounting range is narrowed.

  The present invention has been made to solve the above-described problems, and aims to improve workability and expand the instrument mounting range, and is not disclosed in each patent document. An object of the present invention is to provide a door for an electric equipment housing equipped with a new method of mounting a control instrument and a wiring method.

  The door for an electrical equipment housing according to the present invention is a longitudinal mounting for detachably attaching a wiring support body to the outer wall at a predetermined interval in an electrical equipment housing door equipped with electrical appliances on the back surface of the door. A pair of instrument mounting partition members provided with side surfaces and a longitudinal mounting edge for appropriately mounting control instruments according to the specifications at the upper end, and the inside of both instrument mounting partition members An integrated rail having a substantially H-shaped cross section is formed by a support member that is provided across the walls and that integrally joins the two device mounting screen members. The mounting rail is extended from the mounting screen, and mounting holes are provided at both ends of the extension, and the integrated rail is mounted directly on the back of the door or indirectly through a frame by a fastening fixture inserted through the mounting hole. What That.

According to the door for the electrical equipment frame of the present invention, the workability is improved by integrating the rail support and the rail, the number of parts is reduced, the range for mounting the appliance is eliminated, the duct is not required, and the wiring support is removable. There is an effect such as effective use of the instrument mounting range.
In other words, the integrated rail of the present invention is an integrated rail and rail support, and in the case of mounting, only one process of mounting the integrated rail on the frame is completed, and unnecessary work is eliminated. Therefore, workability is improved. Further, since the wiring support attached to the outer wall surface of the integrated rail has a function of storing the wiring and functions as a substitute for the duct D, the original installation of the duct D can be omitted. Furthermore, since the wiring support is attached to the outer wall surface of the integrated frame, there is no useless space, and it is easy to secure a wiring storage space in a narrower space than the original duct D is stretched. In addition, since the wiring support is detachable, it is possible to secure a device mounting range equivalent to the wiring support by removing the wiring support if the wiring has few places.

It is a perspective view which shows the integrated rail in Embodiment 1 of this invention. It is sectional drawing which showed typically the state which attached the support body for wiring to the integrated rail in Embodiment 1 of this invention. It is sectional drawing which showed typically the state which attached the control instrument to the integrated rail of FIG. (A) is explanatory drawing which looked at the switchboard door part which attached the control instrument using the integrated rail of FIG. 2 from the back side, (b) is explanatory drawing which looked at the conventional switchboard door part from the back side. . The integrated rail in Embodiment 2 of this invention is shown and it is explanatory drawing which showed typically the state which formed the wiring duct part by the combination of the two integrated rails and the wiring support body, (a) Sectional drawing, (b) is a plan view showing (a) in a reduced scale. It is Embodiment 3 of this invention, and is explanatory drawing which removed the support for wiring locally from the integrated rail attached to the flame | frame, and looked at the door for electric equipment housings from the back side. FIG. 6 is a modification of the third embodiment of the present invention, in which the Z-shaped frame 3 is removed from FIG. 6 and the integrated rail is directly attached to the door for the electrical equipment housing, and the door is viewed from the back side. It is. It is sectional drawing which shows a part of conventional instrument mounting structure.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, the same code | symbol shows the same or an equivalent part between each figure.

Embodiment 1 FIG.
First, the structure of the integrated rail 11 which concerns on Embodiment 1 is demonstrated based on FIG. 1, FIG. FIG. 1 is a perspective view showing an integrated rail, and FIG. 2 is a cross-sectional view schematically showing a state in which a wiring support is attached to the integrated rail.
1 and 2, the integrated rail 11 has a cross-sectional shape similar to an H-type, and is a rail for mounting an instrument that integrates a conventional rail support 101 </ b> B and a rail body 101 </ b> A, and has both functions. It is.
That is, the integrated rail 11 includes a pair of appliance mounting screen members 11A and 11B and a support member (hereinafter referred to as “joining member 11C”) as a joining member, and has a substantially H-shaped cross section as will be described later. Is formed.

The appliance mounting screen members 11A and 11B are longitudinal mounting side surfaces for detachably mounting a wiring support body (hereinafter referred to as “wiring fitting”) having a substantially U-shaped cross section at a predetermined interval on the outer wall. Portions 11As and 11Bs are provided, and upper end edges 11Au and 11Bu for appropriately attaching the control instrument 5 according to specifications are provided at the upper end.
A number of wiring fitting attachment holes 11d are formed in the longitudinal attachment side surface portions 11As and 11Bs at predetermined intervals. Further, the longitudinal attachment edge portions 11Au and 11Bu are formed in a bent shape so that the control instrument 5 can be easily attached. The wiring bracket 2 is detachably attached to the integrated rail 11 by a bolt (not shown) inserted from the wiring bracket side mounting hole 2a into the wiring bracket mounting hole 11d.

The joining member 11C is provided straddling between the inner wall surfaces 11An and 11Bn of the instrument mounting screen members 11A and 11B, and integrally joins the tool mounting screen members 11A and 11B. 11B and the cross section is formed in a substantially H shape.
Further, both end portions of the joining member 11C are extended from the instrument mounting screen members 11A and 11B, and the extended both end portions 11CC are respectively provided with elliptical mounting holes 11e.
Then, the integrated rail 11 is directly (see FIG. 7 described later) or the Z-shaped frame 3 (see FIG. 7 described later) by a fastening fixture (not shown) such as a screw inserted through the elliptical mounting hole 11e. It is indirectly attached via FIG.

As shown in FIG. 3, the control instrument 5 is placed on the bent portions of the longitudinal attachment edge portions 11Au and 11Bu, and is fixed in a stable state by the control instrument fixtures 51 and 52.
The number of wiring brackets 2 attached to the integrated rail 11 is determined by determining how much to attach according to the amount of wires.
The integrated rail 11 has the functions of the conventional rail main body 101A and the rail support 101B. Since the strength differs from that of a single rail and the strength is higher than that of the single rail, the controller 5 is attached to the integrated rail 11. Can be attached to the Z-shaped frame 3. Thereby, even if the switchboard door 101 does not have the appliance mounting rail 101, the control appliance 5 can be attached, and the workability can be improved.

FIGS. 4A and 4B are views of the electrical equipment housing door (distribution panel door) on which the appliance is mounted as viewed from the back side. FIG. 4A shows an example of the first embodiment, and FIG. 4B shows a conventional example. Is shown.
4 (a) and 4 (b), the duct D is attached to the duct support in the conventional example (b). However, in FIG. 4 (a), the duct D is not necessary and the duct D is attached. It can be seen that a space is created in the space that has been used, and the instrument mounting range is widened. For example, it is possible to mount more measuring instruments 4 and control instruments 5 than before.

Embodiment 2. FIG.
The integrated rail in the second embodiment shown in FIG. 5 is an example in which two integrated rails 11 and the wiring bracket 2 are combined. (A) is a sectional view, (b) is a reduced view of (a). It is the top view shown.
In the integrated rail 11 in the second embodiment, the wiring bracket 2 is connected to the integrated rails 11 and 11 adjacent to each other among the plurality of integrated rails 11 arranged in parallel on the door back surface 100A as shown in FIG. As shown in FIG. 5, the wiring duct 2D as shown in FIG. 5A is formed by combining the wiring bracket 2 and the integrated rail 11 in a staggered manner.
In this way, it is possible to secure a wire storage space by alternately intersecting the U-shaped wiring fittings 2 using the plurality of integrated rails 11. When the wiring bracket 2 is not used in combination as in the second embodiment (see FIGS. 1 to 3), the wire bundle that has been wired to the wiring bracket 2 is inserted into the wire fitting. It is fixed by a wire connecting tool (not shown) inserted through the holes 2b and 2c and has a converging function similar to a duct.

Embodiment 3 FIG.
FIG. 6 showing the third embodiment shows where the attachment / detachment of the wiring bracket 2 is used. The wiring bracket 2 is locally attached from the integrated rail 11 attached to the Z-shaped frame 3. FIG. 7 is a modification of Embodiment 3 of the present invention, and FIG. 7 shows a modified example of Embodiment 3 of the present invention, in which the Z-shaped frame 3 is removed from FIG. It is the explanatory view which showed the modification which attached the digitization rail directly to the door (switchboard door part) 100 for electrical equipment housings, and looked at the door from the back side.

In FIG. 6, the integrated rail 11 is attached to the Z-shaped frame 3, and a part of the plurality of wiring fittings 2 attached to the appliance attaching screen members 11 </ b> A and 11 </ b> B is thinned and removed locally. The electric appliance attachment surface portion 100B for directly attaching electric appliances to the door back surface 100A is secured. Moreover, if this appliance mounting surface part 100B restrict | limits the attachment number of the metal fitting 2 for wiring beforehand, the appliance mounting surface part 100B can be ensured in the limited space.
Moreover, when attaching the measuring instrument 4 as shown in FIG. 6, there is an instrument that needs to be attached by opening a mounting hole in the electrical equipment housing door (switchboard door part) 100. At this time, a part of the wiring support (wiring fitting) 2 of the integrated rail 11 may come into contact with the measuring instrument and cannot be attached. In such a case, the integrated rail 11 can be attached by removing the wiring support (wiring metal fittings) 2 that comes into contact with the measuring instrument, and the integrated rail 11 can be attached even in a narrow space. Space that can be installed is increased.

In FIG. 7 showing a modification of the third embodiment, the integrated rail 11 is directly attached to the screw portion 10 without attaching the Z-shaped frame 3 to the electric device housing door (switchboard door portion) 100.
As a result, the length of the integrated rail 11 is extended by the Z-shaped frame, and more control devices 5 can be attached.

  Also, when attaching the integrated rail 11 to the electrical equipment housing door (distribution panel door) 100, the elliptical mounting holes 11e at the left and right ends of the integrated rail 11 are elliptical, so they are slightly adjusted up and down. Is possible. Thereby, the position of the integrated rail 11 can be adjusted, and when attached, when the distance between instruments is too narrow, a distance can be opened.

  Thus, since the integrated rail 11 of FIG. 7 does not have the Z-shaped frame 3, the Z-shaped frame 3 is attached to the screw portion 10 as shown in FIG. This eliminates the step of saying, and the step of simply screwing the integrated rail 11 directly onto the screw portion 10 reduces the number of steps and improves the workability. Further, by increasing the number of screw portions 10 in the electrical equipment housing door (distribution panel door portion) 100, the integrated rail 11 can be stretched directly on the electrical equipment housing door (distribution panel door portion) 100, and the Z-shaped frame 3 Can be eliminated. And since there is no Z-shaped frame 3, the instrument attachment range is expanded, and more control instruments 5 can be attached.

In each of the above-described embodiments, the switchboard and the control panel have been described. However, the present invention can also be applied to doors of other electrical equipment housings that involve wiring work between the control tool and the control tool.
In the present invention, each embodiment can be appropriately modified or omitted within the scope of the invention.

11: Integrated rail, 11A, 11B: Pushing member for instrument mounting, 11As, 11Bs: Longitudinal mounting side surface portion (outer wall surface portion), 11Au, 11Bu: Longitudinal mounting edge portion (bending upper edge), 11An 11Bn: inner wall surface portion, 11C: support member (joining member), 11CC: extended both ends, 11d: wiring bracket mounting hole, 11e: elliptical mounting hole, 2: wiring support body (wiring bracket), 2a: Mounting bracket side mounting hole,
2b: binding tool insertion hole, 2c: binding tool insertion hole, 2D: wiring duct, D: duct,
3: Z-shaped frame, 4: Measuring instrument, 5: Control instrument, 51, 52: Control instrument fixture, 10: Screw part, 100: Electrical equipment housing door, 100A: Door back surface, 100B: Electrical instrument mounting surface part, 101: Rail for mounting fixtures, 101A: Rail body, 101B: Rail support, 102: Z-shaped frame, 105: Control fixture.

Claims (3)

In the door for electrical equipment housing equipped with electrical appliances on the back of the door,
A longitudinal mounting side surface is provided on the outer side wall for detachably mounting the wiring support at a predetermined interval, and a longitudinal mounting edge for appropriately attaching control devices to the upper end according to the specifications. A pair of appliance mounting screen members,
An integrated rail having a substantially H-shaped cross section is formed by a support member that is provided between the inner side walls of the both appliance mounting screen members and integrally joins the both device mounting screen members. Both ends of the support member of the rail are extended from the partition member for mounting the instrument, and mounting holes are provided at both ends of the extension. The fastening rails inserted into the mounting holes are used to connect the integrated rail to the back surface of the door. A door for an electrical equipment housing, which is mounted directly or indirectly through a frame.   The wiring duct is formed by alternately arranging the wiring supports on the integrated rails adjacent to each other among the plurality of integrated rails arranged side by side on the rear surface of the door. Item 1. A door for an electrical equipment housing according to Item 1.   For attaching electrical appliances directly to the back surface of the door by removing a part of the plurality of wiring supports attached to the appliance mounting screen or without attaching the wiring support beforehand. The electrical equipment housing door according to claim 1, wherein an electrical appliance mounting surface portion is secured.

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