FLEX-RIGID WIRING BOARD AND METHOD FOR MANUFACTURING THE SAME

• US 20110279219A1
• Filed: 01/14/2010
• Published: 11/17/2011
• Est. Priority Date: 01/21/2009
• Status: Active Grant

• Current Assignee: Dexerials Corporation
• Original Assignee: Sony Chemical & Information Device Corporation (Sony Group Corp.)
• Inventors: Kimura, Yuji, Suzuki, Kazuaki
• Granted Patent: US 8,648,688 B2
• Time in Patent Office: Days
• US Class Current: 337/297
• CPC Class Codes: H01H 1/5805 Connections to printed circuits for slide switches H01H15/005; for tumbler switches H01H23/006
• CPC Class Codes: H01H 2037/768 characterised by the composition of the fusible material
• CPC Class Codes: H01H 37/08 Indicators; Distinguishing marks
• CPC Class Codes: H01H 37/761 with a fusible element forming part of the switched circuit H01H37/767 takes precedence
• CPC Class Codes: Y10T 29/49107 Fuse making

Abstract

A protection element is provided which is capable of stably retaining a flux on a soluble conductor at a predetermined position and is capable of checking a retention state of the flux, enabling a speedy blowout of the soluble conductor in the event of an abnormality. This protection element includes: a soluble conductor 13 which is disposed on an insulation baseboard 11 and is connected to an electric power supply path of a device targeted to be protected, to cause a blowout by means of a predetermined abnormal electric power; a flux 19 which is coated onto a surface of the soluble conductor 13; and an insulation cover 14 which is mounted on the baseboard 11 with the soluble conductor 13 being covered therewith. The insulation cover 14 is provided with an opening porting 20 made of a through hole which is opposite to the soluble conductor 13. The flux 19 comes into contact with a peripheral edge part of the opening portion 20, retaining the flux 19 at a predetermined position on the soluble conductor 13.

Claims

1. A protection element including:

a soluble conductor which is disposed on an insulation baseboard and is connected to an electric power supply path of a device targeted to be protected, to cause a blowout by means of a predetermined abnormal electric power;

an insulation cover which is mounted on the baseboard with the soluble conductor being covered via a predetermined space; and

a flux which is coated onto a surface of the soluble conductor and is positioned in the space,

the protection element being adapted for, in case that the abnormal electric power is supplied to the device targeted to be protected, allowing the soluble conductor to blow out and shut off a current path thereof,

wherein an opening portion made of a through hole is formed at the insulation cover in opposite to the soluble conductor;

the flux comes into contact with a peripheral edge part of the opening portion; and

the flux is provided on the soluble conductor so as to be retainable at a predetermined position in the space.

2. The protection element according to claim 1, wherein

the opening portion is made of an opening portion of a large diameter which is formed at a center part of the insulation cover and is face-to-face opposite to a center part of the soluble conductor.

3. The protection element according to claim 2, wherein the opening portion is covered with a transparent film.

4. The protection element according to claim 1, wherein

the opening portion is formed in plurality at the insulation cover in face-to-face opposite to the center part of the soluble conductor.

5. The protection element according to claim 4, wherein a plurality of the opening portions are covered with a transparent film.