Core Securing Member And Its Structure

• US 20090108971A1
• Filed: 03/07/2007
• Published: 04/30/2009
• Est. Priority Date: 03/17/2006
• Status: Active Grant

• Current Assignee: Tamura Corporation
• Original Assignee: Tamura Corporation
• Inventors: Okamoto, Tadayuki
• Granted Patent: US 8,102,228 B2
• Time in Patent Office: Days
• US Class Current: 336/65
• CPC Class Codes: H01F 27/266 Fastening or mounting the core on casing or support on coil H01F27/30
• CPC Class Codes: H01F 3/14 Constrictions; Gaps, e.g. air-gaps in magnetic shunt paths H01F3/12
• CPC Class Codes: H01F 37/00 Fixed inductances not covered by group H01F17/00

Abstract

[PROBLEM] By simplifying a core securing structure of a reactor, miniaturization, lightweight, and low costs of the reactor are achieved.

[SOLVING MEANS] The core securing member to secure a core 109 in a case 101 in the reactor wherein the core 109 and the coil 105 are housed in the case 101 is made up of a first spring portion S1 which gives momentum to a side face of the core 109 in a horizontal direction and a second spring portion S2 which gives momentum to an upper face of the core 109 in a vertical direction. Moreover, a stopper portion to restrict popping of the core from the case and the second spring portion are integrally formed with a notch being interposed between the stopper and the second spring portion so that the stopper portion covers part of an upper face of the core.

Claims

1. A core securing member for securing a core in a case in a reactor wherein the reactor comprises at least the core, a coil in which a winding line is wound around the core, and the case houses the core and coil and wherein a first spring portion which gives momentum to a side of the core in the case in a horizontal direction and a second spring portion which give momentum to an upper face of the core in a vertical direction are integrally formed.

2. The core securing member according to claim 1, wherein a stopper portion to restrict popping of the core from the case and the second spring portion are integrally formed with a notch being interposed between the stopper and the second spring portion so that the stopper portion covers part of an upper face of the core.

3. The core securing member according to claim 2, wherein the notch formed between the stopper and the second spring portion has an R portion (round portion) and the R (curvature) on the stopper portion side is smaller than the R (curvature) on the second spring portion side.

4. The core securing member of a reactor stated in claim 1, wherein the core securing member is inserted to one end side in the case to be secured to the case and the core securing member gives momentum to the core in the case in horizontal and vertical directions.

5. The core securing member of a reactor stated in claim 2, wherein the core securing member is inserted to one end side in the case to be secured to the case and the core securing member gives momentum to the core in the case in horizontal and vertical directions.

6. The core securing member of a reactor stated in claim 3, wherein the core securing member is inserted to one end side in the case to be secured to the case and the core securing member gives momentum to the core in the case in horizontal and vertical directions.