Laminated LC filter having hollow air-gap over-voltage protection mechanism

• Main Author: SU SHENGFU
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2008
• Subjects: BASIC ELECTRONIC CIRCUITRY; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS; RESONATORS

The utility model discloses a laminated chip type LC filter which is provided with an over-voltage protection mechanism of hollow air gap. The LC filter consists of a plurality of foundation plates which are vertically laminated. The upper surface of a lower foundation plate is provided with an electrode layer with a slot; the slot divides the electrode layer and extends into the lower foundation plate; a middle foundation plate is provided with a slot which corresponds to the slot on the lower foundation plate and has the same width and length as the lower foundation plate; an electrode structure of the hollow air gap is arranged between the lower foundation plate and the middle foundation plate; a second middle foundation plate is arranged above the middle foundation plate; an upper foundation plate is covered on the second middle foundation plate; two ends of the electrode wire in any direction of crossing electrode layer are respectively provided with an air gap which is used as an over-voltage protection