JP2017225283A - Housing for panel device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing for a panel device, capable of preventing a part of the housing from deform even when an external force caused by hanging is applied to the housing when a size or a mass of a housing machine is increased.SOLUTION: A housing for a panel device comprises: a floor plate having an end part bent to a peripheral side part in an U-shape; and a corner metal jig that is assembled to a corner part of the floor plate, has a plurality of composition surfaces crossing each other at straight angle, and includes a double bent part in which an upper layer plate and a lower layer plate are overlapped to the composition surfaces of the floor plate and a floor surface. In double bent part of the corner metal jig, the length of the upper layer plate is longer than that of the lower layer plate in a width direction or a depth direction of the floor plate.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a panel device casing, and relates to a panel device casing in which, for example, power distribution equipment is accommodated.

  Inside the switchgear that constitutes the power distribution equipment, there are conductors that are used to conduct current, switchgears such as circuit breakers for interrupting the current, transformers that raise and lower the voltage, and for measuring each current and voltage. Houses instruments such as instrument transformers. Depending on the configuration of the power distribution equipment, the total mass of the equipment housed inside the switchgear housing becomes heavy, so the switchgear housing that houses these equipments has high rigidity that can withstand earthquakes, lifting, and transportation. Is required.

  In a conventional case for a panel device, a substantially L-shaped metal fitting that is also U-shaped is fitted inside the U-shaped bent plate portion of the floor plate and the side plate, and a rivet is driven into each of the corresponding holes. Due to the structure, the rigidity of the corner is increased to form a ramen structure. However, it has a complicated structure with many bent portions of the metal fittings, and there is a problem that a high machining accuracy is required for the finished dimensions of drilling and bending of each member.

  Further, for example, in the conventional case for a panel device disclosed in the prior art document 1, corner metal parts bent in three directions so that the surface corresponding to the base fixing portion is doubled are provided at each corner portion of the case. The noodles are made by rivet bonding between the left side plate, floor plate, and right side plate of each corner of the housing, and between the left side plate, ceiling plate, and right side plate, and by increasing the rigidity in the three directions of top, bottom, left, and right. By adopting a structure, it is possible to obtain high rigidity of the foundation fixing portion and to configure the floor plate portion and the side plate with a simple structure that does not require high processing accuracy.

International Publication No. 2015-170426

  However, in the conventional case for a panel device disclosed in Prior Literature 1, as shown in FIG. 2 of Prior Literature 1, corner metal fittings are attached to the respective corner portions of the housing to improve rigidity. As the housing size and the mass of the storage device increase, it is impossible to guarantee the earthquake resistance and the lifting strength only by gradually improving the rigidity of the corner portion. Therefore, a reinforcing member such as a reinforcing metal fitting is usually attached between the corner metal fittings to maintain the rigidity of the casing. However, a gap is always generated between the corner metal fitting and the reinforcing metal fitting, and since there is no corner metal fitting or reinforcing plate in the gap portion and there is only one floor plate, the rigidity is partially lowered and the reinforcing effect is reduced. Further, when an external force is applied to the housing, stress concentrates in the gap portion, and in the worst case, the member may be plastically deformed.

  In order to solve this problem, in Prior Art Document 1, as shown in FIG. 7 of Prior Art Document 1, the reinforcing member such as the corner metal fitting and the reinforcing metal fitting is changed to an integrated one, and there is no gap between the corner metal fitting and the reinforcing metal fitting. It has a structure. However, corner metal fittings require a high degree of processing accuracy in the finished dimensions in order to maintain high assembly accuracy of the casing. In order to make the complicated bending called double bending of the corner metal with high accuracy, it is necessary to manufacture a dedicated bending die or the like. As shown in FIG. If these are manufactured as a single unit, different types of corner metal fittings must be manufactured for each size of the housing, resulting in a high cost.

  The present invention has been made to solve the above-described problems, and even when an external force is applied to the casing by lifting or the like when the size of the casing for the panel device or the mass of the storage device increases. An object of the present invention is to obtain a case for a panel device that can prevent partial deformation of the case.

  The case for a board device according to the present invention has a floor plate having an end portion folded in a U-shape at a peripheral portion, a plurality of joint surfaces assembled at corners of the floor plate and intersecting at right angles to each other, A corner metal fitting having a double-folded portion in which an upper layer board and a lower layer board are doubled on the joint surface with the floor surface of the floor board, and the corner metal fitting in the width direction or the depth direction of the floor board, The length of the upper layer plate of the double bent portion is longer than the length of the lower layer plate.

  According to the case for a panel device according to the present invention, since one type of corner metal fitting that requires high dimensional accuracy can be made regardless of the size of the case for the board device, a bending die for producing the corner metal fitting is produced. In this case, the mold cost can be reduced. In addition, unlike an integrated metal fitting, since the presence or absence of a reinforcing metal fitting can be adjusted according to the mass of the storage device housed in the board device housing, the member cost and the design cost can be minimized.

It is an expansion perspective view which shows the corner part of the floor part of the housing | casing for board apparatuses by Embodiment 1 of this invention. It is a disassembled perspective view which shows the decomposition | disassembly state of FIG. It is a perspective view which shows the floor front part of the housing | casing for panel devices by Embodiment 1 of this invention. It is a perspective view which shows the housing panel structure of the housing | casing for board | substrate apparatuses by Embodiment 1 of this invention. It is an expanded view of the corner metal fitting shown in FIG. It is a perspective view which shows the corner part of the floor part of the housing | casing for board apparatuses by Embodiment 2 of this invention. It is a disassembled perspective view which shows the decomposition | disassembly state of FIG. It is a disassembled perspective view which shows the decomposition | disassembly state of the floor board of the board | plate apparatus housing | casing by Embodiment 2 of this invention, and other components. It is a perspective view which shows the corner part of the floor part of the housing | casing for board apparatuses by Embodiment 3 of this invention. It is a perspective view which shows the corner part of the floor part of the housing | casing for board apparatuses by Embodiment 3 of this invention.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. In the drawings, the same reference numerals denote the same or corresponding parts.
1 is an enlarged perspective view showing a corner portion of a floor portion of a cabinet for a panel device according to Embodiment 1 of the present invention, and FIG. 2 is an exploded perspective view showing an exploded state of FIG. FIG. 3 is a perspective view of the floor portion of the panel device casing, and FIG. 4 is a perspective view when the panel device casing column is changed from a column structure to a panel structure. FIG. 3 and FIG. 4 show the front surface portion of the panel device housing, and the rear surface side of the housing is viewed from the inside of the housing. FIG. 5 is a development view before the corner metal fitting 3 shown in FIG. 1 is bent.
When the casing is viewed in the direction of FIG. 3, the front is the front side of the casing and the rear is the back side. The left-right direction is referred to as the width direction of the housing, and the direction from the front side to the back side is referred to as the depth direction.

First, with reference to FIG. 3, it demonstrates from the board | plate apparatus housing | casing whole.
As shown in FIG. 3, the floor portion of the panel device housing 50 is composed of a floor plate 1, a pillar 2, a corner metal fitting 3, a reinforcing metal fitting 4 and a corner metal fitting 6, and the board device housing 50 has a rectangular parallelepiped shape. This is the structure. The corner metal fitting 6 is arranged symmetrically with the corner metal fitting 3. In addition, the ceiling part is basically the same as the floor part, and the description thereof is omitted.
Moreover, the board | plate apparatus housing | casing 50 attaches the reinforcement metal fitting 4 to the predetermined position of the floor board 1, for example, then attaches the corner metal fitting 3 and the corner metal fitting 6 to the corner | angular part of the floor board 1, and finally attaches the pillar 2 to the corner metal fitting 3. And assembled to the corner metal fitting 6.
In FIG. 3, the structure of the panel device housing 50 is a pillar structure using the pillar 2, but this is an example for explaining the main part of the first embodiment of the present invention. As shown in FIG. 4, the panel structure may be a right side panel 7 and a left side panel 8 in which the columns are integrated in the column 2. The characteristic part in Embodiment 1 of this invention has the characteristics in the junction part of the corner metal fitting 3 joined to the floor board 1 and the pillar 2, and the reinforcement metal fitting 4 joined to the floor board 1 and the corner metal fitting 3. FIG.

First, the floor board 1 is demonstrated with reference to FIG. The floor board 1 has bent portions 1a and 1b formed by being bent in a U shape (a shape in which a U-shaped corner portion is a right angle) at the ends of the four sides of the floor surface of the floor board 1. Here, the horizontal part which does not contain the bending parts 1a and 1b of the floor board 1 is called a floor surface. That is, the peripheral portion of the floor surface of the floor board 1 is first bent into an L shape, and the end thereof is bent into an L shape. The bent portions 1a and 1b have C chamfering of about several millimeters at the ends. Moreover, in order to attach the pillar 2 to the corner | angular part of the floor surface of the floor board 1, the bending parts 1a and 1b are not formed. Therefore, when assembled from the state of FIG. 2 as shown in FIG. 1, the floor board 1 and the pillar 2 are configured to be flush with each other.
Next, the reinforcing metal fitting 4 will be described with reference to FIG. The reinforcing metal fitting 4 has a joint surface 4a with the bent portion 1b of the floor board 1, a joint surface 4b with the double bent inner portion 3c and the double bent outer portion 3d of the floor plate 1 and the corner metal fitting 3, and rigidity improvement. And an L-shaped bent portion 4c. The cross-sectional shape of the reinforcing metal fitting 4 is a U-shape and is adapted to the shape of the corner metal fitting 3. That is, when the corner metal fitting 3 is riveted, the gap between the reinforcing metal fitting 4 and the corner metal fitting 3 can be made as small as possible.
Moreover, the column 2 has a bent part 2a and a bent part 2b which are bent in an L shape at the end part.

Subsequently, the corner metal fitting 3 will be described with reference to FIGS. 2 and 5. The corner metal fitting 3 is joined to the floor plate 1, the joint surface 3 a between the bent portion 2 a of the pillar 2 and the bent portion 1 a of the floor board 1, the joint surface 3 b of the pillar 2 and the bent portion 1 b of the floor board 1. It is composed of a double bent inner portion 3c and a double bent outer portion 3d, which are heavy bent portions, and a bent portion 3e formed by bending the double bent inner portion 3c into an L shape. .
Here, the double-folded portion of the corner metal fitting 3 means that, for example, a plate material such as a steel plate is bent at a valley fold portion 22 shown by a dotted line in FIG. This refers to the part formed by two plates. Moreover, the double bending inner part 3c shown in FIG. 1, FIG. 2 shows the upper layer board of the double bending part which is a two-layer structure. The double bent outer portion 3d indicates a lower layer plate of a double bent portion having a two-layer structure. Here, the double bent inner portion 3c and the double bent outer portion 3d are parallel to each other, and the joint surfaces 3a, 3b, and 3c are formed to be bent at right angles to each other. The corner fitting 3 is riveted to the floor plate 1, the pillar 2, and the reinforcing fitting 4 from three directions. The corner fitting 3 is provided with a mounting hole 20 for fixing the foundation.

In the rivet joining from the direction other than the floor direction, the floor plate 1 and the reinforcing metal fitting 4, the joining surface 3a of the pillar 2 and the corner metal fitting 3, and the joining surface 3b of the pillar 2 and the corner metal fitting 3 are riveted by two plates.
On the other hand, the bonding from the floor direction is rivet-bonded with three plates in order to increase the rigidity of the foundation fixing portion and enhance the earthquake resistance. Specifically, the floor plate 1, the double bent inner portion 3 c of the corner metal fitting 3, the double bent outer portion 3 d of the corner metal fitting 3, or the double bent inner portion 3 c of the floor plate 1 and the corner metal fitting 3. The three metal members of the joint surface 4b of the reinforcing metal fitting 4 are joined to improve the earthquake resistance.
The double bent portions of the corner fitting 3 have different lengths in the width direction, and the double bent inner portion 3c is longer than the double bent outer portion 3d. The portion where the double bent inner portion 3c and the double bent outer portion 3d overlap is rivet-bonded in a triple manner by the floor board 1, the double bent inner portion 3c, and the double bent outer portion 3d. Further, an end portion where the double bent inner portion 3c and the double bent outer portion 3d do not overlap each other is provided with a rivet hole 5 in the double bent inner portion 3c. The floor plate 1, the joining surface 4b of the reinforcing metal fitting 4, and the double bent inner portion 3c are rivet joined in triplicate.

In the first embodiment of the present invention, the length in the width direction of the double bent inner portion 3c of the corner fitting 3 may be the same as that of the joint surface 3b, but as shown in FIG. It is preferable that the lengths of the heavy bent inner portion 3c and the double bent outer portion 3d are different from each other. This is because if the gap between the corner fitting 3 and the reinforcing fitting 4 is discontinuous in the width direction, the gap portion can be easily supplemented with the rigidity of the corner fitting 3 and the reinforcing fitting 4. Details will be described later.
In the conventional casing structure as a comparative example, when considering the cross-sectional second moment in the width direction in the casing structure having a gap between the corner metal fitting and the reinforcing metal fitting, there is a gap between the corner metal fitting and the reinforcing member. Since it becomes one sheet, the rigidity of the gap portion becomes very low.
However, in the structure of the panel device housing 50 according to the first embodiment of the present invention, there are three gaps between the corner fitting 3 and the reinforcing fitting 4 as shown in FIG. In the gap, a steel plate having rigidity at least as large as the L-shaped bending of the corner fitting 3 and the reinforcing fitting 4 is arranged.

Specifically, as shown in FIG. 1, the double bent inner portion 3c and the bent portion 3e of the corner metal fitting 3 have a gap 16 between the double bent outer portion 3d and the joint surface 4b of the reinforcing metal fitting 4. Since there is an L-shaped bent portion configured, it has sufficient rigidity against the gap 16 that is formed when the metal fittings are connected.
Further, the gap 17 between the joint surface 3b of the corner metal fitting 3 and the joint surface 4a of the reinforcing metal fitting 4 is also reinforced with an L-shaped steel plate composed of the double bent inner portion 3c and the bent portion 3e of the corner metal fitting 3. Since there is the joint surface 4b of the metal fitting 4, it has sufficient rigidity even with respect to the gap 17 that is formed when the metal fittings are connected. Furthermore, in the gap 18 between the bent portion 3e of the corner metal fitting 3 and the bent portion 4c of the reinforcing metal fitting, there is an L-shaped bent portion constituted by the joining surface 4a and the joining surface 4b of the reinforcing metal fitting 4, It is a structure having sufficient rigidity with respect to a gap portion formed when the metal fittings are connected.
That is, the gaps 16, 17, 18 formed between the corner fitting 3 and the reinforcing fitting 4 are at least made of the corner fitting 3 or a steel plate bent into an L shape of the reinforcing fitting 4. , 17 and 18 can also maintain high rigidity and solve the problem of stress concentration.
As a result, when the size of the cabinet for the panel device or the mass of the storage device increases, the housing will be partially deformed even if external force is applied to the housing due to lifting or lifting of the housing floor by a bar. Can be prevented.

When the size of the housing is changed, the overall length of the reinforcing metal fitting 4 is adjusted without changing the shape of the corner metal fitting 3 and the shape of the end portion of the reinforcing metal fitting 4. As a result, only one type of corner fitting 3 needs to be manufactured, which leads to cost reduction.
In addition, when the size of the casing is reduced or the number of storage devices stored in the casing is reduced, the reinforcing bracket 4 can be removed and operated. Since the presence or absence of the reinforcing metal fitting 4 can be easily adjusted according to the situation of the storage device, not only the member cost can be reduced but also the design cost can be suppressed.
In the first embodiment of the present invention, a bent portion 3e obtained by bending the double bent inner portion 3c of the corner fitting 3 into an L shape is taken as an example, but the bent shape of the bent portion 3e is an L shape. Z-bending, U-shaped bending, hemming bending, or the like may be used in addition to the shape bending.
In addition, although the corner metal fitting 3 of Embodiment 1 of this invention is demonstrated on the assumption of a bending process, you may manufacture by casting or forging.

Embodiment 2. FIG.
6 is an enlarged perspective view of the floor corner portion of the cabinet for a panel device according to the second embodiment, and FIG. 7 is an exploded perspective view showing an exploded state of FIG. FIG. 8 is an exploded perspective view showing a disassembled state of the floor panel and other parts of the panel device casing.
In the first embodiment, the reinforcing metal fitting 4 is used in the width direction and connected to the corner metal fitting 3, whereas in the second embodiment of the present invention, as shown in FIG. The reinforcing metal fitting 4 used in the width direction also in the depth direction is connected to the corner metal fitting 9 using the reinforcing metal fitting 11 having the same end shape. The corner metal fitting 9 includes a joint surface 9a, a joint surface 9b, a double fold inner portion 9c and a double fold outer portion 9d which are double fold portions joined to the floor board 10, and a double fold inner portion. It is composed of a bent portion 9e and a bent portion 9f formed by bending 9c into an L shape.

The shape of the corner fitting 9 is the same as that of the corner fitting 3 in the first embodiment in the width direction, and a bent portion 9e formed by bending the double bent inner portion 9c into an L shape in the depth direction, and Similarly to the width direction, the double bent inner portion 9c is longer than the double bent outer portion 9d in the depth direction as well as in the width direction. Thereby, like the reinforcing metal member 4 arranged in the width direction, the gap portion of the reinforcing metal member 11 arranged in the depth direction is formed by the corner metal member 9 or the reinforcing metal member 11 having at least rigidity equal to the L-shaped bending. Further, the floor plate 10, the reinforcing bracket 11, and the double bent inner portion 9 c are rivet-joined using the rivet holes 12.
As shown in FIG. 8, the reinforcing metal fitting 4 is connected between the corner metal fitting 9 and the corner metal fitting 13 symmetrical to the corner metal fitting 9 in the width direction, and the corner metal fitting 9 and the corner metal fitting 13 are also connected in the depth direction. Since the reinforcing metal fitting 11 is connected between the two, the rigidity of the entire housing can be improved. Thereby, for example, even when an external force is applied to the housing when the housing size expands not only in the width direction but also in the depth direction, partial deformation of the housing can be prevented.

Embodiment 3 FIG.
9 is an enlarged perspective view of the floor corner portion of the cabinet for a panel device according to Embodiment 3 of the present invention, and FIG. 10 is an exploded perspective view showing an exploded state of FIG.
In the third embodiment, the corner metal fitting 14 includes a joint surface 14a, a joint surface 14b, a double fold inner portion 14c and a double fold outer portion 14d, which are double fold portions joined to the floor plate 15, It is composed of a folded curved surface 14e and a folded curved surface 14f formed by bending the double folded inner portion 14c into a U-shape.
In the first embodiment, the bent portion 3e is formed by bending the double bent inner portion 3c of the corner fitting 3 into an L shape, whereas in the third embodiment of the present invention, the corner fitting 14 is formed. The double bent inner portion 14c is bent in a U shape to form a bent curved surface 14e and a bent curved surface 14f. A rivet hole 19 is provided in the folding surface 14 f of the corner metal fitting 14. In addition to the rivet joining structure similar to that of the first embodiment, the corner metal fitting 14 is rivet joined to the bent portion 15c of the floor plate 15 using the rivet hole 19 in the folding curved surface 14f.

The corner metal fitting 14 includes a rivet joint between the double bent inner portion 14c and the floor surface 15a of the floor board 15, a rivet joint between the joint surface 14b and the bent section 15b of the floor board 15, and a bent surface 14f and the bent part of the floor board 15. It is firmly joined from three surfaces by rivet joining of 15c. For this reason, in the vicinity of the joint portion described above, the corner fitting 14 and the floor board 15 can be regarded as having the same rigidity as that of the one. Assuming that the corner metal fitting 14 and the floor plate 15 are integrated, the cross-sectional shape in the width direction of the casing near the joint portion is the folded curved surface 14f, the folded curved surface 14e, the double folded inner portion 14c of the corner metal fitting 14, and the reinforcing metal fitting. 4 has a rectangular cross section composed of the joint surface 4b and the bent portions 15b and 15c of the floor plate 15, the rigidity of the connecting portion between the corner metal fitting 14 and the reinforcing metal fitting 4 is remarkably improved, and a stronger housing It becomes possible to have a structure.
It should be noted that within the scope of the present invention, the embodiments can be freely combined, or the embodiments can be appropriately modified or omitted.

  DESCRIPTION OF SYMBOLS 1 Floor board, 1a, 1b bending part, 2 pillar, 2a, 2b bending part, 3 corner metal fittings, 3a, 3b joint surface, 3c double bending inner part, 3d double bending outer part, 3e bending part 4 Reinforcing brackets, 4a, 4b Joint surface, 4c Bent part, 5 Rivet holes, 6 Corner bracket, 7 Right side panel, 8 Left side panel, 9 Corner bracket, 9a, 9b Joint surface, 9c Double folded inside Part, 9d double bent outer part, 9e, 9f bent part, 10 floor board, 11 reinforcing bracket, 12 rivet hole, 13 corner bracket, 14 corner bracket, 14a, 14b joint surface, 14c double bent inner part, 14d Double bent outer side, 14e, 14f Curved surface, 15 Floor plate, 15a Floor surface, 15b, 15c Bent part, 16, 17, 18 Clearance, 19 Rivet hole, 20 Mounting hole

Claims (5)

A floorboard having an end folded into a U-shape at the periphery;
It has a plurality of joint surfaces that are assembled to the corners of the floor board and intersect at right angles to each other, and has a double bent portion in which an upper layer board and a lower layer board are doubled on the joint surface with the floor surface of the floor board. Corner metal fittings,
The corner metal fitting is a case for a panel device, wherein the length of the upper layer plate of the double bent portion is longer than the length of the lower layer plate in the width direction or depth direction of the floor plate. It is disposed between the corner metal fittings and has a reinforcing metal fitting formed by bending it into a U-shape,
2. The panel device casing according to claim 1, wherein the double-folded portion has a structure in which the upper layer plate and the reinforcing metal fitting are connected to each other.   2. The double bent portion of the corner metal fitting is formed by overlapping two of the bent curved surfaces formed by bending three portions of a plate material at right angles. The case for a panel device according to 2.   4. The case for a panel device according to claim 1, wherein the upper plate of the corner metal fitting is provided with a bent portion having an L-shaped cross-section. 5. .   The upper layer plate of the corner metal fitting has a bent portion formed by bending the cross-sectional shape into a Z shape, a U shape, or a hemming bend. The case for a panel device according to item 1.

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