JPH0513243A - Structure of mounting transformer to vehicle - Google Patents

Abstract

PURPOSE:To see that tensile strength is not added to a mounting bolt and improve the work efficiency at the time of mounting a transformer. CONSTITUTION:In the mounting structure of a transformer, which is mounted being hung down from the floor of an electric rolling stock, this is constituted such that a transformer 11 is mounted by elongating the length of an iron core fastening metal fitting for fastening the iron core of the transformer 11 more than the outside width dimension of a line wheel, and putting this iron core fastening metal fitting directly on the top of the main frame 6 of the box frame hung down from the floor of the electric rolling stock.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle transformer mounting structure which is suspended and mounted under the floor of an electric vehicle.

[0002]

2. Description of the Related Art FIG. 5 is a front view showing the structure of a conventional transformer, and FIG. 6 is a side view thereof. 5 and 6, the iron core 1 around which the wire wheel 2 is wound is tightened by the iron core tightening fitting 3 and the tightening bolt 5. The iron core tightening metal fitting 3 is made of a metal piece having an L-shaped cross section, and has a hole for inserting the tightening bolt 5 into one leg piece and a mounting hole for attaching the transformer to the box frame at both ends of the other leg piece. 4 are provided. In this case, the length E of the iron core fastening member 3 is usually made to be substantially the same as the outer width dimension F of the wire ring 2.

FIG. 7 is a front view showing a mounting structure in which the above-mentioned transformer is suspended and mounted under the floor of an electric vehicle, and FIG.
It is the side view seen from the A line. 7 and 8,
A pair of main frames 6 forming a box frame are attached under the floor (not shown) of the electric vehicle. Further, a frame 7 is welded across the pair of main frames 6, and a transformer 8 configured as described in FIGS. 5 and 6 is attached to the frame 7 with a mounting bolt 9.

[0004]

In such a conventional mounting structure for a vehicle transformer, since a tensile force due to the weight of the transformer 8 is applied to the mounting bolt 9 for mounting the transformer, the mounting bolt having a large strength is used. In addition, when mounting the transformer 8 on the frame 7, it is necessary to support the weight of the transformer 8 from below until the tightening bolts 9 are completely tightened. Furthermore, the frame 7 that serves to suspend the transformer 8 is required, and the weight of the box frame increases.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide a vehicle transformer mounting structure having a simple structure.

[0006]

In order to achieve the above-mentioned object, the present invention is a vehicle transformer mounting structure which is suspended and mounted under the floor of an electric vehicle, in which a box frame is constructed under the floor of the electric vehicle. Mount the main frame and tighten the iron core of the transformer to form an iron core clamp with a length larger than the outer width of the coil wound around the iron core, and attach both ends of the iron core clamp to the main frame. I shall. In this case, the iron core tightening fitting and the main frame are attached with bolts.

[0007]

According to the structure of the present invention, the transformer has the length of the iron core tightening fitting larger than the outer width dimension of the wire ring and is mounted on the upper surface of the main frame which constitutes the box frame suspended under the floor of the electric vehicle. Since it is mounted directly on the transformer, the transformer mounting bolt is not subjected to tensile force due to the weight of the transformer. Also, when installing the transformer, it is not necessary to support the transformer from below.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing an example of a transformer for implementing a vehicle transformer mounting structure of the present invention, and FIG. 2 is a side view thereof. In FIGS. 1 and 2, the length C of the iron core tightening metal fitting 10 for tightening the iron core 1 around which the wire ring 2 is wound is made longer than the outer width dimension D of the wire ring 2 by the amount necessary for mounting the transformer. There is a mounting hole 4 in this portion. The iron core tightening metal fitting 10 is a metal piece having an L-shaped cross section, and is composed of a portion for tightening the iron core and a portion attached to the main frame 6 forming the box frame.

FIG. 3 is a front view showing an embodiment of a vehicle transformer mounting structure of the present invention, and FIG. 4 is a side view of FIG. 3 taken along the line BB. In FIGS. 3 and 4, FIGS.
The transformer 11 configured as described above is mounted with the mounting bolts 9 by directly mounting the iron core fastening metal fittings on the upper surface of the main frame 6 that constitutes the box frame suspended under the floor of the electric vehicle.

The mounting structure according to the present invention can be applied not only to the transformer but also to the mounting structure for reactors.

[0011]

According to the present invention, since a tensile force is not applied to the mounting bolt for mounting the transformer, the mounting bolt can be made small. Further, when the transformer is mounted on the main frame, it is not necessary to support the transformer from below until the mounting bolts are completely tightened, which improves the workability of mounting. Further, since the frame used for suspending the transformer used conventionally is not required, the weight can be reduced accordingly.

[Brief description of drawings]

FIG. 1 is a front view showing a structure of a transformer when implementing a vehicle transformer mounting structure of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view showing an embodiment of a vehicle transformer mounting structure of the present invention.

FIG. 4 is a side view of FIG. 3 seen from the line BB.

FIG. 5 is a front view showing the structure of a conventional vehicle transformer.

6 is a side view of FIG.

FIG. 7 is a front view showing a conventional vehicle transformer mounting structure.

FIG. 8 is a side view of FIG. 7 seen from the line AA.

[Explanation of symbols]

1 iron core Two wheels 4 mounting holes 5 Tightening bolt 6 main frame 9 Mounting bolt 10 Iron core tightening bracket 11 transformer

Claims (2)

[Claims] 1. A transformer mounting structure for a vehicle, which is suspended and mounted under the floor of an electric vehicle, wherein a main frame constituting a box frame is mounted under the floor of the electric vehicle and an iron core fastening metal fitting for fastening an iron core of the transformer is provided. A structure for mounting a transformer for a vehicle, which is formed to have a length larger than an outer width dimension of a coil wound around an iron core, and both ends of the iron core tightening fitting are mounted on the main frame. 2. A transformer for a vehicle according to claim 1, wherein both ends of the iron core fastening member are attached to the upper surface of a main frame constituting a box frame suspended under the floor of an electric vehicle with bolts. Mounting structure.