Electromagnetic interference shielding apparatus for signal transceiver

• US 7,570,496 B2
• Filed: 08/30/2007
• Issued: 08/04/2009
• Est. Priority Date: 11/28/2006
• Status: Active Grant

• Current Assignee: Microelectronics Technology Inc (MTI Laboratory Inc)
• Original Assignee: Microelectronics Technology Inc (MTI Laboratory Inc)
• Inventors: Chen, Ruei Yuen, Huang, Yi Hsiang, Kuo, Fang Yu
• Primary Examiner(s): Levi; Dameon E
• Application Number:
  US11/896,230
• Publication Number:
  US 20080123316A1
• Time in Patent Office: 705 Days
• Field of Search: 361/800, 361/816, 361/818, 361/799, 361/753, 174/50.5, 174/50.51, 174/350, 174/371, 174/377, 439/607
• US Class Current: 361/818
• CPC Class Codes: H05K 5/062 sealed by a material injected between a non-removable cover and a body, e.g. hardening in situ
• CPC Class Codes: H05K 9/006 specially adapted for signal processing applications, e.g. CATV, tuner, antennas amplifier
• CPC Class Codes: H05K 9/0073 Shielding materials H05K9/0003 takes precedence

Abstract

An electromagnetic interference shielding apparatus for a signal transceiver employs two folded-edge mechanisms coupled together and an adhesive. The electromagnetic interference shielding apparatus includes a metal cover, a chassis having a waveguide output hole, and an adhesive. A first combination portion having a first curved section is disposed on an edge of the metal cover. A second combination portion having a second curved section corresponding to the first combination portion is disposed on an edge of the chassis. The adhesive is used to combine the first combination portion and the second combination portion. The waveguide output hole outputs a signal transmitted by the signal transceiver. The first combination portion and the second combination portion form a curved space that is used with the adhesive to prevent leakage of the transmitted signal and the interference of external noises.

Claims

1. An electromagnetic interference shielding apparatus, applied to a signal transceiver, the electromagnetic interference shielding apparatus comprising:

a metal cover comprising a first combination portion disposed on an edge of the metal cover, the first combination portion having a first curved section, wherein the first curved section has an outer cavity and an outer edge;

a chassis having a waveguide output hole and a second combination portion disposed on an edge of the chassis, wherein the second combination portion has a second curved section and the second curved section has an inner branch and a central cavity, and the chassis carries the signal transceiver; and

an adhesive combining the first combination portion and the second combination portion;

wherein the outer edge is inserted into the central cavity, the inner branch is inserted into the outer cavity, and the adhesive is filled in the space between the inner branch and the outer cavity to prevent leakage of a transmitted signal and the waveguide output hole is used to output the transmitted signal of the signal transceiver; and

wherein the metal cover includes a plurality of recess portions corresponding to a plurality of locking holes arranged in the chassis, and the recess portions and the locking holes are respectively positioned on the central portion of the metal cover and chassis and combined together with a plurality of locking members.

2. The electromagnetic interference shielding apparatus of claim 1, wherein the transmitted signal of the signal transceiver belongs to a Ku band, a C band, or a Ka band.

3. The electromagnetic interference shielding apparatus of claim 1, which meets requirements of Protection Class IP68.

4. The electromagnetic interference shielding apparatus of claim 1, wherein the locking members and the locking holes are screws and screw holes, respectively.

5. The electromagnetic interference shielding apparatus of claim 1, wherein the metal cover is a rectangular flat structure having four round corners.

6. The electromagnetic interference shielding apparatus of claim 1, wherein the adhesive is disposed in the curved space.

7. The electromagnetic interference shielding apparatus of claim 6, wherein the curved space comprises a first annular space, a second annular space, and a third annular space, and the adhesive is disposed in the first annular space and the second annular space.

8. The electromagnetic interference shielding apparatus of claim 1, wherein the first curved section is a 90-degree-angle S-shaped structure having a bottom edge perpendicular to the outer edge, the bottom edge is not directly connected to the outer edge, and the central cavity is a U-shaped structure.

9. The electromagnetic interference shielding apparatus of claim 1, wherein the waveguide output hole is capable of being connected to an external high-pressure gas source for removal of the metal cover from the chassis.

10. The electromagnetic interference shielding apparatus of claim 1, wherein the first combination portion has a groove capable of carrying the adhesive that is uncured before the metal cover and the chassis are combined.