Output-noise reduction device

Patent metadata

Field	Value
Publication number	US-2017194090-A1
Application number	US-201715463475-A
Country	US
Kind code	A1
Filing date	Mar 20, 2017
Priority date	Sep 30, 2014
Publication date	Jul 6, 2017
Grant date	—

Abstract

An object is to provide an output-noise reduction device that can achieve more effective fixing of an output terminal.
A conducting bar in a noise filter module has a front end portion provided with a bent portion bent upward to be orthogonal with the front and rear direction. This bent portion serves as the resistance against the secondary molded member with respect to movement of the conducting bar in the front and rear direction. Thus, when the force in the detaching direction (the front and rear direction) is applied in a state where the bolt is fixed to the connection terminal of the supplying device, movement of the conducting bar in the front and rear direction with respect to the frame molded member can be prevented, with the bent portion serving as the resistance against the frame molded member.

First claim

1 . An output-noise reduction device that outputs an output signal from an electronic device to a supplying device with noise mixed in the output signal reduced, the output-noise reduction device comprising:
a magnetic body core that is made of a magnetic material and has a through hole; a conducting bar that is made of a conductive material, inserted in the through hole in the magnetic body core, has one end portion in an inserting direction serving as a connecting portion to be connected to the electronic device, and has another end portion provided with a bent portion bent to be in an orthogonal direction with respect to the inserting direction; an encapsulating member that is made of a resin material, and encapsulates the magnetic body core and the conducting bar inserted to the magnetic body core; and an output terminal that is fixed to the bent portion of the conducting bar and is connected to the supplying device, wherein the bent portion is provided with a press fitting hole in which the output terminal is press fit, the output terminal includes:
a bolt to be connected to the supplying device; and
a nut, in which the bolt is fastened by screwing, the nut being provided with a press fitting portion formed to have a size corresponding to a size of the press fitting hole, and
the bolt is fastened to the nut, fixed with the press fitting portion fit in the press fitting hole, by screwing.

2 . The output-noise reduction device according to claim 1 , wherein the bent portion has a shape of a flat plate and has a surface facing the supplying device exposed from the encapsulating member to be connected to the connection terminal of the supplying device.

3 . The output-noise reduction device according to claim 1 , wherein the bent portion includes a curved portion formed by being curved by a predetermined angle from the one end portion of the conducting bar in the inserting direction toward the orthogonal direction with respect to the inserting direction.

4 . An output-noise reduction device that outputs an output signal from an electronic device to a supplying device with noise mixed in the output signal reduced, the output-noise reduction device comprising:
a magnetic body core that is made of a magnetic material and has a through hole; a conducting bar that is made of a conductive material, inserted in the through hole in the magnetic body core, has one end portion in an inserting direction serving as a connecting portion to be connected to the electronic device, and has another end portion provided with a bent portion bent to be in an orthogonal direction with respect to the inserting direction; an encapsulating member that is made of a resin material, and encapsulates the magnetic body core and the conducting bar inserted to the magnetic body core; and an output terminal that is fixed to the bent portion of the conducting bar and is connected to the supplying device, wherein the bent portion is provided with a press fitting hole in which the output terminal is press fit, and the output terminal includes:
an output terminal portion extending in the inserting direction;
a latching portion having a flat plate shape that is formed on a base end portion of the output terminal portion and expands from a center axis of the output terminal portion in an orthogonal direction with respect to the center axis; and
a step portion that is formed on a distal end surface of the latching portion and is fit and fixed in the press fitting hole in the bent portion.

5 . The output-noise reduction device according to claim 4 , wherein the bent portion has a shape of a flat plate and has a surface facing the supplying device exposed from the encapsulating member to be connected to the connection terminal of the supplying device.

6 . The output-noise reduction device according to claim 4 , wherein the bent portion includes a curved portion formed by being curved by a predetermined angle from the one end portion of the conducting bar in the inserting direction toward the orthogonal direction with respect to the inserting direction.

Assignees

• Kitagawa Ind Co Ltd

Inventors

• Tanimizu Tomokazu
• Ueno Kazushige
• Morita Katsuyuki

Classifications

• H01F27/327

  Encapsulating or impregnating (encapsulating coil and core H01F27/022) · CPC title

• H01F27/022

  Encapsulation · CPC title

• H01F2017/065

  Core mounted around conductor to absorb noise, e.g. EMI filter · CPC title

• H01F17/06

  with core substantially closed in itself, e.g. toroid · CPC title

• H01F27/06

  Mounting, supporting or suspending transformers, reactors or choke coils {not being of the signal type} · CPC title