JPH0631307U - switchboard - Google Patents

Abstract

(57) [Summary] [Purpose] In a switchboard containing a large-capacity transformer,
The structure will not require any special reinforcement of the casing of the switchboard to facilitate the storage work of the transformer and to transport it to the place where the switchboard is installed. [Structure] Switchboard casing 1 and front frame 1
It is composed of three parts: a and a rear frame 1b, and a base 2 to which the transformer 3 is fixed. For transportation, the parts are divided into three parts as described above, and the base 2 is installed at the place where the switchboard is installed. After arranging at a predetermined position, the front frame 1a, the rear frame 1b, and the base 2 are bolted together.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a switchboard casing structure, particularly a switchboard casing housing a large-capacity transformer.

[0002]

[Prior art]

 Fig. 2 shows the structure of a switchboard that houses a conventional transformer. 2 (a) is a front view thereof, and FIG. 2 (b) is a side view thereof. In FIGS. 2A and 2B, 10 is a casing of a switchboard, and this casing 10 is composed of a frame 11 and doors, side plates, ceiling plates, etc. not shown. 12 is a transformer, 13 is a bus bar, 14 is a fixture for the bus bar 13, 15 is a low-voltage side terminal of the transformer 12, 16 is a reinforcing plate, and 17 is a hanger. In a switchboard that stores a large-capacity transformer, the low-voltage side current is large, so that the low-voltage terminal 15 is generally wired by a bus bar 13 as shown in the figure. The bus bar 13 is fixed in parallel to the front surface of the casing 10 and near the front ceiling of the casing 10 by a fixing tool 14.

In a switchboard that houses a transformer, the frame 11 generally has an integral frame structure in which a mold steel or a mold material is welded. The transformer 12 was fixed to the bottom surface of the frame 11 by inserting it from the top opening portion of the frame 11 or the front or rear opening portion of the frame 11. Next, the bus bar 13 for each phase, which is attached to the frame 11 with the fixture 14, is connected to the low-voltage side terminal 15 of the transformer 12 by wiring, and then the door, side plate, back plate, ceiling plate, etc. are attached to the frame 11. Then, the switchboard was assembled.

[0004]

[Problems to be solved by the device]

 However, when transporting a switchboard containing a large capacity transformer and wiring and assembly completed, when hoisting with a transport machine such as a crane, in order to prevent deformation of the frame 11 due to excessive weight of the transformer, There is a drawback that the structure of the frame 11 becomes complicated, such as the reinforcement plate 16 being welded to the 11 and the suspending tool 17 having a structure capable of withstanding the weight.

In the case where transportation of the assembled switchboard is restricted, the switchboard is disassembled by carrying out a work in a process opposite to the above-mentioned assembling order, and is disassembled to be transported to each destination. The assembly work is being carried out again, and this has the drawback that it takes a lot of time for disassembly and reassembly work. The present invention has been made in view of the above-mentioned points, and an object thereof is to provide a switchboard which has a simple structure and enables assembly and disassembly work in a short time.

[0006]

[Means for Solving the Problems]

 Means for achieving the above-mentioned object is a switchboard for storing a transformer, which includes a base for fixing the transformer and a casing for storing the transformer, and divides the casing in the longitudinal direction, and The divided casings are fastened with nail studs between the frames and between the frame and the base.

[0007]

[Action]

 With the structure described above, it is possible to easily divide the switchboard into three parts. For example, when transporting or moving a switchboard that has been assembled and wired, there are three parts: the frame 1a, the frame 1b, and the base 2 on which the transformer 3 is fixed. By splitting and transporting and assembling by bolting at the destination, the work time of disassembling and reassembling the switchboard can be shortened. An embodiment of the present invention will be described below in detail with reference to the drawings.

[0008]

【Example】

 FIG. 1 shows a switchboard structure according to the present invention, showing a front frame in which a casing for housing a transformer is divided vertically, a rear frame in the same vertical direction, and a base to which a transformer is fixed. In FIG. 1, reference numeral 1 denotes a casing, which is composed of a disassembled front frame 1a, rear frame 1b, and doors, side plates, ceiling plates and the like (not shown). 2 is a base, 3 is a transformer, 4 is a bus bar, 5 is a fixture for the bus bar 4, 6 is a low voltage side terminal of the transformer 3, 7a and 7b are joint surfaces of the front frame 1a and the rear frame 1b, and 8 is Bolt holes formed in the joint surfaces 7a and 7b, and 9 are suspenders.

When assembling the switchboard by the parts shown in FIG. 1, first, the transformer 3 is fixed on the base 2. In this case, since there is no casing frame around the base 2 as shown in FIG. 2, the work of fixing the transformer 3 to the base 2 can be easily performed. Next, the front frame 1a is bolted to the base 2, and the bus bar 4 previously arranged on the front frame 1a and the low-voltage side terminal 6 of the transformer 3 are wire-connected by the fixture 5. Next, the divided rear frame 1b is bolted to the base 2, the joint surface 7a of the front frame 1a and the joint surface 7b of the rear frame 1b are butted, and bolted through the bolt holes 8 to assemble a switchboard. Complete the work.

When the switchboard is transported, the bolt connection between the front frame 1a, the rear frame 1b and the base 2 and the wiring connection between the bus bar 4 and the low voltage side terminal 6 of the transformer 3 are released. Next, the base 2 with the transformer 3 fixed and the front frame 1a and the frame 1b on which the bus bars 4 are arranged are divided into three parts for transportation. At the place where the switchboard is installed, the divided three parts will be reassembled by bolts. It is not necessary to remove the bus bar 4 provided on the front frame 1a during the above-described divided transportation. Further, the front frame 1a and the rear frame 1b do not need to suspend the base 2 to which the transformer 3 is fixed as in the conventional case, so that the reinforcing plate 16 shown in FIG. 2 is unnecessary. Further, the strength of the suspending tool 9 need only be sufficient to lift the front frame 1a and the rear frame 1b, respectively.

In the embodiment of the present invention, since the bus bar 4 is arranged in parallel with the front surface (left side when viewed from the drawing) of the switchboard, the casing 1 is divided into the front frame 1a and the rear frame 1b. However, when the bus bars 4 are arranged at a right angle in front of the switchboard, the casing 1 may be divided into left and right. The present invention can also be applied to the case where an electric wire is used for the low voltage side terminal wiring of the transformer 3. Furthermore, the present invention can be applied to the structure of the switchboard that stores the reactance or the capacitor other than the transformer 3.

[0012]

[Effect of device]

 As described above, according to the present invention, the structure of the switchboard storing a large capacity transformer and the like is simple, and the assembling and disassembling is easy, and the work can be performed in a short time.

[Brief description of drawings]

[0013]

FIG. 1 is an exploded view showing the structure of a switchboard showing an embodiment of the present invention.

FIG. 2 (a) is a front view showing the structure of a conventional wiring board, and FIG. 2 (b) is a side view thereof.

[0014]

[Explanation of symbols]

 1 Casing 1a Front frame 1b Rear frame 2 Base 3 Transformer 4 Bus bar 5 Fixing device 6 Low voltage side terminal 7a Joining surface 7b Joining surface 8 Bolt hole 9 Hanging device 10 Casing 11 Frame 12 Transformer 13 Bus bar 14 Fixing device 15 Low voltage side Terminal 16 Reinforcing plate 17 Hanging device

Claims (1)

[Scope of utility model registration request] 1. A distribution board for storing a transformer, comprising a base for fixing the transformer and a casing for storing the transformer, the casing being divided into front and rear in a vertical direction, and between the divided casings and between the casings. A switchboard characterized in that each base is fastened with nail studs.