JPH0613303U - Frame for switchboard and switchboard - Google Patents

Abstract

(57) [Abstract] [Purpose] Assembling the framework does not require various machine tools or working spaces, and does not require skill levels.
Be easy and easy to do. [Structure] The switchboard frame has a corner connecting fitting 2 and an angle bar 3 as basic constituent members, and screw mounting holes 5 are formed on both sides of each ridge of the three mounting surfaces 2A, 2B, 2C of the corner connecting fitting 2. 5 is provided, and a screw insertion hole 6 into which an anchor bolt, a suspension ring or the like is attached is provided at the center of the attachment surface. The angle bar 3 has two flange portions 3A, 3
A large number of screw insertion holes 7 are arranged in the longitudinal direction of B.
The inner surfaces of the end portions of the twelve angle bars 3 are brought into contact with the ridges of the mounting surfaces 2A, 2B, 2C of the eight corner connecting fittings 2 and are screwed with the screw insertion holes 5 and 7 to form a rectangular parallelepiped shape. Assemble the framework.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a switchboard frame assembly forming a switchboard frame and a switchboard configured by the switchboard frame assembly.

[0002]

[Prior art]

 Conventionally, in a switchboard installed in an electric room, as shown in FIG. 7, a frame pipe 30 is cut into an appropriate length according to the space of the installation place, and a frame is fixed using a fixing bracket 31 and a connecting bracket 32. A shelf is provided in the framed frame pipe, and electric distribution equipment such as CB, LBS, transformer, relay, and control switch are attached thereto with appropriate attachments, and the instrument panel 33 is attached to the front to attach electrical wiring. Had been installed.

[0003]

[Problems to be solved by the device]

 However, as described above, the work of assembling the frame using the frame pipe requires a machine tool and a work space for the work such as cutting and connecting at the work site, which makes the work site complicated and makes it difficult for the worker. It was a dangerous work that was difficult to process and assemble. In particular, as shown in FIG. 7, the frame pipe 30 is connected with a connecting metal fitting 32 including an L-shaped metal fitting, a U-bolt, a washer, etc., which is a complicated task. Further, in order to perform the cutting work of the round frame pipe 30 accurately, a special tool is used, which requires skill for the work. Therefore, labor saving and simplification of the work have been desired in the past. In addition, as the capacity of transformers, etc. becomes larger and space for the electric room itself cannot be taken, space saving is also desired.

On the other hand, as described above, the installation work of the switchboard is performed by the procedures such as the frame pipe framework, the equipment installation, and the electric wiring. However, when the equipment specifications or layout are changed, There was also a problem that it was necessary to start over from the framework and the responsiveness to changes in work procedures was low. Therefore, the purpose of the present invention is to easily and easily perform the assembly work of the frame without requiring various kinds of machine tools or work space and skill level, and to change the layout. It is an object of the present invention to provide a switchboard that is composed of a switchboard frame assembly and a switchboard frame assembly that are highly compatible with the above and have excellent workability.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the frame body for a switchboard according to claim 1 has a basic structure of eight corner connecting fittings and twelve angle bars, and the corner connecting fittings have three mounting surfaces at right angles to each other. It has a triangular pyramid shape, and has screw insertion holes on both sides of each ridge line on each of these mounting surfaces, and a large number of screw insertion holes are arranged in the longitudinal direction on both flanges of the angle bar. The inner surface of the end of the angle bar is brought into contact with each ridge of each mounting surface and screwed to form a rectangular parallelepiped frame.

According to a second aspect of the present invention, there is provided a switchboard frame assembly in which a front panel is attached to one surface of the rectangular parallelepiped frame structure. According to a third aspect of the present invention, there is provided a distribution board frame assembly in which a distribution electrical equipment mounting bar is attached between the angle bars of the distribution board framework. According to a fourth aspect of the present invention, there is provided a switchboard frame assembly in which a channel frame is attached to a lower surface of the switchboard frame assembly, and an anchor bolt insertion hole is provided in a web of the channel frame.

According to a fifth aspect of the present invention, there is provided a switchboard frame assembly in which the shield plate is attached to at least one surface of the rectangular parallelepiped frame structure. According to a sixth aspect of the switchboard, an electrical device for power distribution is attached to the front panel of the frame body for the switchboard according to the second aspect. In the distribution board according to claim 7, the distribution electrical equipment is attached to the distribution electrical equipment installation rail of the distribution board framework.

[0008]

[Action]

 According to the structure of claim 1, the corner connecting fitting has a triangular pyramid shape in which the three mounting surfaces are perpendicular to each other, and the screw insertion holes are provided on both sides of each ridge line portion of each of these mounting surfaces. Since a large number of screw insertion holes are lined up in the longitudinal direction on both flanges of the angle bar, the inner surface of the end of the angle bar is abutted against each ridge of each mounting surface of the eight corner connecting fittings. The frame can be easily assembled into a rectangular parallelepiped by simply stopping it. Further, by adjusting the fastening position of the screw insertion hole of the corner connecting fitting and the screw insertion hole of the angle bar, the fine adjustment of the frame assembly size can be easily performed. Moreover, the angle bar has an L-shaped cross section and can be easily cut.

According to the structure of the second aspect, since the front panel is attached to one surface of the rectangular parallelepiped frame, instruments can be attached to the front panel. According to the structure of claim 3, the distribution electric device mounting bar is mounted between the angle bars, so that the distribution electric device can be mounted on this bar. According to the structure of claim 4, since the channel frame is attached to the lower surface and the anchor bolt insertion hole is provided in the web of the channel frame, the level can be obtained by the channel when the floor surface of the installation place is not horizontal. . Also, if an anchor bolt is laid on the floor, it can be easily installed.

According to the configuration of claim 5, since the shielding plate is attached to at least one surface of the rectangular parallelepiped frame, it is possible to maintain safety when configured as a switchboard. According to the configurations of claims 6 and 7, the switchboard frame assembly of claim 1 can be installed as a switchboard.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an external appearance and an assembled state of a corner connecting fitting 2 and an angle bar 3 which are basic members constituting a frame body for a switchboard according to an embodiment of the present invention. The mounting surface is formed in the shape of a triangular pyramid that is perpendicular to each other. 2A, 2B and 2C show three mounting surfaces 2A, 2B and 2C of the corner connecting fitting 2, respectively. Screw insertion holes 5, 5 are provided on both sides of each ridge of the mounting surfaces 2A, 2B, 2C, and a screw insertion hole 6 for mounting an anchor bolt, a suspension ring, etc. is provided at the center of the mounting surface. ing. Although the screw insertion hole 5 is formed as a long hole, it may be formed as a plurality of round holes. Further, as shown in FIG. 3, the angle bar 3 is provided with a large number of screw insertion holes 7, 7 ... In the longitudinal direction of both flange portions 3A, 3B. In the figure, (a) is a side view and (b) is a front view.

As shown in FIG. 1, the corner connecting fitting 2 and the angle bar 3 formed as described above are provided on the inner surface of the end portion of the angle bar 3 at the ridges of the mounting surfaces 2A, 2B, 2C of the corner connecting fitting 2, respectively. If they are brought into contact with each other, and the screw insertion hole 5 of the corner connecting fitting 2 and the screw insertion hole 7 of the angle bar 3 are aligned and fastened with a screw, the both can be easily connected.

Therefore, eight corner connecting fittings 2 and twelve angle bars 3 are prepared, and the eight corner connecting fittings 2 are arranged so as to be each corner of the rectangular parallelepiped, and both ends of the angle bar 3 are arranged. By connecting the parts to the corner connecting fitting 2 as described above, a rectangular parallelepiped frame can be easily assembled. Further, the frame can be finely adjusted by adjusting the fastening position between the screw insertion hole 5 of the corner connecting fitting 2 and the screw insertion hole 7 of the angle bar 3. When changing the size of the framework itself, the angle bar 3 may be cut to change the size. Since the angle bar 3 has an L-shaped cross section, it can be easily cut without using a special tool.

As for the assembly, for example, the corner connecting fittings 2 are preliminarily welded to both ends of the angle bar 3 forming the depth direction of the bottom surface of the frame at the time of factory shipment, and the corner connecting fittings 2 are attached in the width direction. First, assemble the frame on the bottom side by attaching the angle bar 3 of. Next, the angle bars 3 in the height direction are attached, the corner connecting fittings 2 are attached to the corner portions serving as the upper surface, and the angle bars 3 in the depth direction and the width direction of the upper surface are attached to complete the frame assembly. An example of the assembly of the switchboard frame assembly 1 assembled in this manner is shown in FIG. As shown in the drawing, the screw insertion hole 5 of the corner connecting fitting 2 and the screw insertion hole 7 of the angle bar 3 can be shared and tightened together at the connecting portion D, so that the switchboard frame 1 can be installed side by side. In the figure, (a) is a front view and (b) is a side view. Further, another switchboard frame assembly 1 can be installed on the upper surface side in a two-tiered manner.

If a front panel is attached to one surface of the switchboard frame assembly 1 assembled as described above, a crosspiece is attached between the angle bars 3, and a distribution electrical device is attached to the front panel and the crosspiece, the distribution board is installed. Can be configured. FIG. 5 is a side view showing a configuration example of a switchboard 101 configured by the three switchboard frameworks 1A, 1B, and 1C assembled as described above. The framework 1A constitutes a low-voltage power distribution chamber, A panel 10 is attached to the front surface thereof, and instruments 11 are attached to the panel 10.

The framework 1B constitutes a transformer unit room, and the transformer 12 is installed therein. The framework 1C is installed in a two-tiered manner above the framework 1B, and the framework 1C constitutes an LSB charging chamber. An electrical equipment mounting bar 13 is vertically mounted near the center of the frame body 1C, and a high voltage load switch 14 is mounted on the bar horizontally mounted on the bar. In addition, a current transformer 15 is attached to the electrical equipment attachment rail that is attached horizontally to the angle bar 3 on the left side of the framework 1C. Shielding plates 16 and 17 for protecting the charging part are attached to the rear surfaces of the frameworks 1B and 1C, respectively.

Channel frames 18 and 19 are provided on the lower surfaces of the frame bodies 1A and 1B that are in contact with the installation floors. The webs of the channel frames 18 and 19 are formed with insertion holes for anchor bolts and are embedded in the floor. Frames 1A and 1B are installed and installed by anchor bolts. If the installation floor is not level, these channel frames allow you to level up.

Further, the low-voltage power distribution chamber constituted by the frame 1A and the transformer unit chamber constituted by the frames 1B and 1C are connected by an angle bar 21 for connection, and a passage 22 is provided between both chambers. Has been formed. The wiring between the LSB charging chamber and the wiring electrical equipment attached to the low voltage distribution chamber is performed through the inside of the connecting angle bar 21. As described above, if the screw insertion hole 5 of the corner connecting fitting 2 and the screw insertion hole 7 of the angle bar 3 are commonly used and tightened together at the connecting portions to form the frame body side by side to form a switchboard, it is shown in FIG. Thus, a plurality of switchboards can be installed in the electric room. Since the structure of the switchboard can be individually performed by the switchboard frame 1 of the embodiment, it can be configured as a unit for each system or each function. In the figure, (a) is a plan view and (b) is a front view.

Further, when assembling the framework, as shown in FIG. 4, if the suspension bolt 25 is attached to the screw insertion hole 6 of the corner connecting fitting 2, the members constituting the framework can be easily transported. It is also possible to increase the efficiency of transportation work and the efficiency of installation work when an electric room is installed on the rooftop of a building as the capacity of the transformer increases. As described above, the switchboard frame 1 according to the embodiment of the present invention has a triangular pyramid shape in which the three mounting surfaces 2A, 2B, 2C of the corner connecting tool 2 are perpendicular to each other. Since the screw insertion holes 5 are provided on both sides of each ridge of each mounting surface, and a large number of screw insertion holes 7 are arranged in the longitudinal direction on both flanges of the angle bar 3, eight corners are connected. It is assembled into a rectangular parallelepiped by abutting the inner surfaces of the end portions of the 12 angle bars 3 to the ridges of the mounting surfaces of the metal fitting 2 and fixing them with screws, so that no work such as cutting is required, and various types are available. Since no mechanical tools are required, it is possible to save labor and simplify the assembly work, and save a work space.

Further, when the switchboard 101 is configured by using the switchboard frame assembly 1, the assembly and disassembly of the switchboard 101 can be easily performed, so that it is possible to immediately respond to a specification change, a layout change, etc. It is possible to increase the degree of correspondence to changes in procedures.

[0021]

[Effect of device]

 According to the frame structure for a switchboard of the present invention, eight corner connecting fittings and twelve angle bars are used as a basic structure, and three mounting surfaces of the corner connecting fittings are in the shape of a triangular pyramid that is perpendicular to each other. Since screw insertion holes are provided on both sides of each ridge of each mounting surface and a large number of screw insertion holes are arranged in a row in the longitudinal direction of both flange portions of the angle bar, the mounting surface of each corner connecting bracket is A rectangular parallelepiped can be assembled by abutting the inner surface of the end portion of the angle bar against each ridge portion and screwing. For this reason, the work space is not taken, and the work such as cutting and various kinds of machine tools are not required, so that labor saving and simplification of the assembling work can be achieved.

Further, when a switchboard is constructed using this switchboard frame, it can be easily assembled and disassembled, so that it is possible to immediately respond to changes in specifications, changes in layout, etc. on site, and It is possible to improve the degree of response to changes and the like. Further, the switchboard can be configured in a unit, and various switchboards can be installed in various combinations.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outer appearance and an assembled state of a corner connecting fitting and an angle bar which are basic members constituting a frame body for a switchboard according to an embodiment of the present invention.

2 (a), (b) and (c) are views showing three mounting surfaces of a corner connecting fitting, respectively.

3A and 3B are a side view and a front view showing a configuration of an angle bar.

FIG. 4 is a view showing an example of assembling a frame body for a switchboard.

FIG. 5 is a side view showing a configuration of a switchboard configured by a switchboard frame assembly.

6A and 6B are a plan view and a front view showing a state in which a plurality of switchboards are installed.

FIG. 7 is a perspective view showing a configuration of a conventional example.

[Explanation of symbols]

 1 Frame for switchboard 2 Corner connecting fittings 2A, 2B, 2C Mounting surface 3 Angle bar 5 Screw insertion hole 7 Screw insertion hole 10 Panel 11 Instrument 13 Electrical equipment mounting bar 16, 17 Shielding plate 18, 19 Channel frame 101 Switchboard

Claims (7)

[Scope of utility model registration request] 1. A corner connecting fitting comprising eight corner connecting fittings and twelve angle bars, the corner connecting fittings having a triangular pyramid shape in which three mounting surfaces are perpendicular to each other. Screw insertion holes are provided on both sides of each ridge, and a large number of screw insertion holes are provided in the longitudinal direction on both flanges of the angle bar, and the end of the angle bar is provided on each ridge of each mounting surface of the corner connecting fitting. A frame body for a switchboard, which is framed in a rectangular parallelepiped shape by abutting the inner surfaces of the parts and screwing. 2. The framework for a switchboard according to claim 1, wherein a front panel is attached to one surface of the rectangular parallelepiped framework. 3. The frame body for a distribution board according to claim 1, wherein a crosspiece for mounting a distribution electric device is attached between the angle bars. 4. The frame body for a switchboard according to claim 1, wherein a channel frame is attached to a lower surface, and an anchor bolt insertion hole is provided in a web of the channel frame. 5. The framework for a switchboard according to claim 1, wherein a shielding plate is attached to at least one surface of the rectangular parallelepiped framework. 6. A switchboard in which an electrical device for power distribution is attached to a front panel of the frame body for switchboard according to claim 2. 7. A distribution board in which the distribution electrical equipment is attached to a distribution electrical equipment mounting rail of the distribution board framework according to claim 3.