Grounding device for reducing EMI on PCB
AssigneeHon Hai Precision Industry Co., Ltd.
InventorChun-Hung Chen
Life of this patent
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Abstract
A grounding device for reducing electromagnetic interference (EMI) on a printed circuit board (PCB) includes a grounded portion formed on the PCB, a threaded hole defined in the PCB, and a connecting member. The grounded portion is a part of a grounding layer of the PCB and with high impedance. The threaded hole is grounded and with low impedance. The connecting member includes a first connecting tab and a second connecting tab separately formed at opposite ends thereof. The first connecting tab is electrically connected with the threaded hole via a screw. The second connecting end resiliently abuts against the grounded portion of the PCB.
Claims8
A grounding device for reducing electro magnetic interference (EMI) of a printed circuit board (PCB), the grounding device comprising:
- a first grounded portion of the PCB and having high impedance;
- a second grounded portion of the PCB and having low impedance;
- and
- a connecting member comprising a first end, and a second end, the first end electrically connected to the first grounded portion of the PCB, the second end electrically connected to the second grounded portion of the PCB;
- wherein the connecting member is a resilient strip, the connecting member comprises a main portion, a first tab, and a second tab, the first tab and the second tab extending from two opposite ends of the main portion, respectively;
- the second grounded portion is a grounded threaded hole defined in the PCB, the first tab of the connecting member defines a through hole therein, a screw is extended through the through hole and engages in the threaded hole.
A printed circuit board (PCB) comprising:
- a first grounded area with high impedance;
- a second grounded area with low impedance;
- and
- a connecting member electronically connecting the first grounded area to the second grounded area;
- wherein the connecting member is a resilient strip, the connecting member comprises a main portion with a curved configuration and two opposite ends, the first end and the second end separately extend from two opposite ends of the main portion;
- the second grounded area is a grounded threaded hole defined in the PCB, a through hole is defined in the first end of the connecting member, a screw is extended through the through hole and engages in the threaded hole.
Dependencies are inferred from the claim text.