Transformer

Patent metadata

Field	Value
Publication number	US-11404194-B2
Application number	US-201816753010-A
Country	US
Kind code	B2
Filing date	Jan 17, 2018
Priority date	Jan 17, 2018
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

A transformer includes a transformer body, a tank, a conservator, a plurality of support fittings, and at least one mounting seat. Transformer body includes an iron core and a winding. Tank includes an upper tank, a middle tank, and a lower tank that are bonded together to form an internal space accommodating transformer body. Conservator is arranged at a position above tank. The plurality of support fittings are arranged side by side at intervals to support conservator. At least one mounting seat is bonded to both a peripheral wall of upper tank and a peripheral wall of middle tank, and fixed to tank, and the plurality of support fittings are attached.

First claim

The invention claimed is:

1. A transformer comprising:
a transformer body including an iron core and a winding;
a tank including an upper tank, a middle tank, and a lower tank, which are bonded to one another to constitute an internal space accommodating the transformer body;
a conservator disposed at a position above the tank;
a plurality of support fittings arranged side by side at an interval from each other to support the conservator; and
at least one mounting seat bonded to both a peripheral wall of the upper tank and a peripheral wall of the middle tank and fixed to the tank, the plurality of support fittings being attached to the mounting seat.

2. The transformer according to claim 1 , wherein the plurality of support fittings are detachably attached to the mounting seat.

3. The transformer according to claim 2 , wherein an engagement unit positioning the plurality of support fittings and the mounting seat is provided in the plurality of support fittings or the mounting seat.

4. The transformer according to claim 1 , further comprising an iron core presser bonded to an inner peripheral surface in an upper portion of the peripheral wall of the middle tank to sandwich the iron core,
wherein the mounting seat facing the iron core presser with the peripheral wall of the middle tank interposed therebetween.

5. The transformer according to claim 1 , wherein the mounting seat includes a flat plate contacting with the support fitting and a leg provided upright from an opposite side to a side contacting with the support fitting with respect to the flat plate, the leg contacting with both the peripheral wall of the upper tank and the peripheral wall of the middle tank.

6. The transformer according to claim 5 , wherein the mounting seat further includes a protrusion protruding from at least a part of a periphery of the flat plate toward a side contacting with the support fitting.

7. The transformer according to claim 1 , comprising a plurality of the mounting seats,
wherein the plurality of support fittings being attached to the plurality of mounting seats in a one-to-one manner.

8. The transformer according to claim 1 , comprising the one mounting seat,
wherein the plurality of support fittings are attached to the one mounting seat.

Assignees

• Mitsubishi Electric Corp

Inventors

• Imazu Takayuki
• Tonoike Keita
• Okada Katsutoshi
• Kinoshita Hiroshi
• Kitagawa Yoshinobu

Classifications

• H01F27/002

  Arrangements provided on the transformer facilitating its transport · CPC title

• H01F27/02 Primary

  Casings · CPC title

• H01F27/14 Primary

  Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling · CPC title

• H01F27/28

  Coils; Windings; Conductive connections · CPC title

• H01F27/266

  Fastening or mounting the core on casing or support (on coil H01F27/30) · CPC title