IP Library › Granted Patent US 9,251,941
Granted Patent B2
US 9,251,941 · App. 14/163,405 · Granted Feb 2, 2016

Transformer

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Quick Facts
Patent No.
US 9,251,941
App. No.
14/163,405
Granted
Feb 2, 2016
Kind
B2
Abstract

There is provided a transformer including an E shaped and two I shaped magnetic cores and a first, second and third windings, wherein: one I shaped magnetic core is located between one side and a middle legs of the E shaped magnetic core, another is located between another side and the middle legs; there is an air gap on each of the two I shaped magnetic cores or two side or bottom legs of the E shaped magnetic core, the first winding is wound on a part of the magnetic cores where the air gap exists; the second and third windings are wound on the middle leg; and the first winding is connected in parallel with the second winding to constitute a primary winding; the third winding is a secondary winding. With the transformer provided by the invention, transformer winding loss can be reduced, and transformer efficiency can be improved.

Claims (7)

1. A transformer characterized by comprising an E shaped magnetic core, two I shaped magnetic cores, a first winding, a second winding, and a third winding, wherein:

one of the two I shaped magnetic cores is located between one side leg and a middle leg of the E shaped magnetic core, and constitutes a closed magnetic circuit together with the one side leg, the middle leg, and one bottom leg of the E shaped magnetic core; another of the two I shaped magnetic cores is located between another side leg and the middle leg of the E shaped magnetic core, and constitutes a closed magnetic circuit together with the another side leg, the middle leg, and another bottom leg of the E shaped magnetic core;

there is an air gap on each of the two I shaped magnetic cores, two side legs of the E shaped magnetic core, or two bottom legs of the E shaped magnetic core, the first winding is wound on a part of the two I shaped magnetic cores or the E shaped magnetic core where the air gap exists; the second and third windings are wound on the middle leg of the E shaped magnetic core; and

the first winding is connected in parallel with the second winding to constitute a primary winding of the transformer; the third winding is a secondary winding of the transformer.

2. The transformer according to claim 1 , characterized in that the air gap is a distributed air gap.

3. The transformer according to claim 2 , characterized in that the number of air gaps on each of the two I shaped magnetic cores, the two side legs of the E shaped magnetic core, or the two bottom legs of the E shaped magnetic core is same.

4. The transformer according to claim 3 , characterized in that the air gaps on the two I shaped magnetic cores, the two side legs of the E shaped magnetic core, or the two bottom legs of the E shaped magnetic core are distributed symmetrically with respect to a center line of the E shaped magnetic core.

Assignments (9)
SECURITY AGREEMENT Recorded Mar 3, 2020
From: ELECTRICAL RELIABILITY SERVICES, INC.; ENERGY LABS, INC.; VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.
To: CITIBANK, N.A.
Reel/Frame 052076/0874 →
RELEASE OF SECURITY INTEREST Recorded Mar 2, 2020
From: JPMORGAN CHASE BANK, N.A.
To: VERTIV CORPORATION (F/K/A ALBER CORP.); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT CORPORATION); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT FREMONT, LLC); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT HUNTSVILLE, LLC); VERTIV IT SYSTEMS, INC. (F/K/A AVOCENT REDMOND CORP.); ELECTRICAL RELIABILITY SERVICES, INC.; VERTIV CORPORATION (F/K/A EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.); VERTIV CORPORATION (F/K/A LIEBERT CORPORATION)
Reel/Frame 052065/0666 →
RELEASE OF SECURITY INTEREST Recorded Mar 2, 2020
From: THE BANK OF NEW YORK MELLON TRUST COMPANY N.A.
To: VERTIV CORPORATION; VERTIV IT SYSTEMS, INC.; ELECTRICAL RELIABILITY SERVICES, INC.
Reel/Frame 052071/0913 →
MERGER Recorded Feb 5, 2020
From: VERTIV ENERGY SYSTEMS, INC.
To: VERTIV CORPORATION
Reel/Frame 051830/0692 →
SECOND LIEN SECURITY AGREEMENT Recorded Jun 10, 2019
From: VERTIV IT SYSTEMS, INC.; VERTIV CORPORATION; VERTIV NORTH AMERICA, INC.; ELECTRICAL RELIABILITY SERVICES, INC.; VERTIV ENERGY SYSTEMS, INC.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049415/0262 →
CHANGE OF NAME Recorded May 16, 2017
From: EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.
To: VERTIV ENERGY SYSTEMS, INC.
Reel/Frame 042469/0671 →
SECURITY AGREEMENT Recorded Dec 2, 2016
From: ALBER CORP.; ASCO POWER TECHNOLOGIES, L.P.; AVOCENT CORPORATION; AVOCENT FREMONT, LLC; AVOCENT HUNTSVILLE, LLC; AVOCENT REDMOND CORP.; ELECTRICAL RELIABILITY SERVICES, INC.; EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.; LIEBERT CORPORATION; LIEBERT NORTH AMERICA, INC.; NORTHERN TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 040797/0615 →
SECURITY AGREEMENT Recorded Dec 1, 2016
From: ALBER CORP.; ASCO POWER TECHNOLOGIES, L.P.; AVOCENT CORPORATION; AVOCENT FREMONT, LLC; AVOCENT HUNTSVILLE, LLC; AVOCENT REDMOND CORP.; ELECTRICAL RELIABILITY SERVICES, INC.; EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.; LIEBERT CORPORATION; LIEBERT NORTH AMERICA, INC.; NORTHERN TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 040783/0148 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2014
From: SHI, YAMING; LIU, YUANGANG; HUANG, LIWEI; LI, XIANGSHENG; XU, FENG
To: EMERSON NETWORK POWER, ENERGY SYSTEMS, NORTH AMERICA, INC.
Reel/Frame 032090/0912 →