JPH079365Y2 - Oil tank for seismic resistant oil impeller - Google Patents

Description

[Detailed Description of the Invention] [Technical Field to which the Invention belongs] The present invention relates to an oil tank structure particularly suitable for an earthquake-proof type of an oil-filled electric device such as a reactor or a transformer.

[Prior art and its problems]

Fig. 4 shows the structure of a conventional oil-filled device.
A high-voltage terminal 43 and a low-voltage terminal 44 are provided on the side wall of the oil tank, and the oil tank 42 is soaked in the oil tank of each of the terminals 43, 44 to leave a space 45 at the upper part and oil 46 is enclosed. ing.
However, in this structure, the oil 46 shakes during an earthquake and the oil surface 46a tilts as shown in the figure to expose the charging part, which may lead to a discharge accident. Further, there is a drawback that a part of the oil 46 may leak from an opening of the pressure release device 47 or a breathing device (not shown) due to a sudden rebound of the oil surface due to a shock such as a sudden release during transportation.

[Purpose of device]

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and provides an oil tank of an oil-filled electric device in which oil does not shake even during an earthquake, so that the charging part is not exposed and there is no leakage due to oil shaking during transportation. The purpose is to do.

[Key points of device]

According to the structure of the invention, the above-mentioned object is such that the upper part of the oil in the oil tank closes almost the entire surface of the oil tank facing the oil surface, one end is fixed to the side wall of the oil tank by the hinge, and the other end is placed on the support plate. This can be achieved by providing a partition plate having a communication port that communicates with the upper part of the oil and suppressing the sway of most of the oil.

[Example of device]

FIG. 1 is a structural view of an oil-filled battery charger according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional plan view taken along the line BB in FIG. Reference numerals indicate those having the same operation as the above.

Oil 46 is enclosed in an oil tank 42 containing the contents 41 of the electric appliance, leaving a space 45 at the upper part. One end of the upper portion of the oil 46 is fixed to the side wall of the oil tank 42 by a hinge 32, and the other end is placed on the support plate 33 to close almost the entire surface of the oil tank 42 facing the oil surface 46a of the oil tank 42. A partition plate 31 including a symmetrical rectangular plate 31a is provided. The one rectangular plate 31a is provided with a communication port 4 through which the amount of change in the amount of oil due to the change in oil temperature during operation of the electric appliance passes.

By configuring the oil tank 42 in this way, the change in the oil amount due to the change in the oil temperature is performed through the communication port 4, and the shaking of most of the oil below the partition plate 31 due to an earthquake or shock is rectangular. Board 31
The pressure generated by the weight of a and generated under the partition plate 31 at the time of failure is released to the outside through the pressure release device 47 when the rectangular plate 31a rises.

As described above, the shaking of most of the oil below the partition plate 31 due to an earthquake or shock is suppressed by the partition plate 31. Partition plate 31
The amount of oil on the top is small, so there is little shaking due to an earthquake or shock. Therefore, the oil does not leak from the opening of the pressure release device 47 or the breathing device (not shown) due to the shaking of the oil due to the earthquake or shock.

[Effect of device]

As is apparent from the above description, according to the present invention, the oil tank of the electric appliance that fills the oil leaving a space above the oil surface is closed in the upper part of the oil tank facing the oil surface in the oil tank. By installing a partition plate with one end fixed to the side wall of the hinge by the hinge and the other end placed on the support plate and having a communication port that communicates with the upper part of the oil, when most of the oil under the partition plate is damaged by an earthquake And the sway during transportation is suppressed. Also, since the amount of oil on the partition plate is small, there is little shaking during an earthquake or during transportation. Therefore, unlike the conventional case, it is possible to obtain a highly reliable oil tank of the oil-filled charger in which the charging part is not exposed due to the shaking of the oil and the oil does not leak from the opening.

[Brief description of drawings]

FIG. 1 is a structural view of an oil-filled battery charger according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional plan view taken along the line BB of FIG. 1, and FIG. [Fig. 4] is a structural diagram of a conventional oil-filled device. 31: Partition plate, 42: Oil tank, 45: Space, 46: Oil, 46a: Oil surface.

Claims (1)

[Scope of utility model registration request] 1. A structure of an oil tank of an electric appliance in which oil is sealed while leaving a space above an oil surface, wherein one end is fixed to a side wall of the oil tank by a hinge and the other end is on a support plate in the upper part of the oil. An oil tank for a seismic-resistant oil charger, characterized in that a partition plate is provided which closes almost the entire surface of the oil tank facing the oil surface of the oil tank which is placed on the oil tank and has a communication port communicating with the upper part of the oil.