Shielding cage assembly with reinforcing dividing walls

• US 20050208831A1
• Filed: 07/16/2004
• Published: 09/22/2005
• Est. Priority Date: 03/19/2004
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Lee, Chieh
• Granted Patent: US 7,037,137 B2
• Time in Patent Office: Days
• US Class Current: 439/607.60
• CPC Class Codes: H01R 13/6587 for mounting on PCBs
• CPC Class Codes: H01R 13/6594 the shield being mounted on a PCB and connected to conductive members
• CPC Class Codes: H05K 9/0058 specially adapted for optoelectronic applications

Abstract

A shielding cage assembly (10) for accommodating transceiver modules includes a body cage (1), a cover cage (2), and dividing walls (3). The body cage includes a bottom wall (11) with front cutouts (112), and two side walls (12). The cover cage includes a top wall (21) with front cutouts (215). Each dividing wall has top and bottom barbs (317) at a front end thereof. In assembly, the barbs are engaged in the corresponding cutouts. The bottom wall, side walls, dividing walls and cover cage cooperatively define cavities therebetween for receiving the transceiver modules. The mechanical strength of the shielding cage assembly at front openings of the cavities is enhanced by the barbs of the dividing walls being engaged in the cutouts of the body cage and the cover cage. The shielding cage assembly can therefore withstand repeated insertion and removal of the transceiver modules without sustaining expansion or distortion.

Claims

1. A shielding cage assembly for accommodating a plurality of transceiver modules, comprising:

an electrically conductive body cage comprising a bottom wall and two side walls, a front edge portion of the bottom wall defining a plurality of cutouts therein;

an electrically conductive cover cage comprising a top wall, a front edge portion of the top wall defining a plurality of cutouts therein; and

a plurality of electrically conductive dividing walls, with a plurality of barbs provided at front ends thereof;

wherein

the barbs are engaged in corresponding of the cutouts of the body cage and the cover cage, and the bottom wall, side walls, dividing walls and cover cage cooperatively define a plurality of cavities therebetween for receiving the transceiver modules therein.

2. The shielding cage assembly as claimed in claim 1, wherein the body cage further comprises a back wall extending up from an end of the bottom wall.

3. The shielding cage assembly as claimed in claim 2, wherein the body cage further comprises a plurality of mounting pins extending downwardly from bottom edges of the side walls and the back wall.

4. The shielding cage assembly as claimed in claim 2, wherein the body cage defines a plurality of bottom openings aligned adjacent the back wall.

5. The shielding cage assembly as claimed in claim 4, wherein the body cage further defines a plurality of notches through the bottom wall, the notches being arranged in a plurality of parallel lines.

6. The shielding cage assembly as claimed in claim 4, wherein the body cage further defines a plurality of holes at the back wall.

7. The shielding cage assembly as claimed in claim 6, wherein the back wall further comprises pushing tabs extending obliquely inwardly therefrom.

8. The shielding cage assembly as claimed in claim 1, further comprising a plurality of spring tabs extending obliquely outwardly from the body cage and the cover cage for electromagnetic interference suppression.

9. The shielding cage assembly as claimed in claim 1, wherein a plurality of releasing tabs extends upwardly from the bottom wall of the body cage, each releasing tab defining a triangular opening therein.

10. The shielding cage assembly as claimed in claim 1, wherein the top wall of the cover cage comprises two side walls and a back wall respectively extending downwardly from two side edges and a rear edge thereof.

11. The shielding cage assembly as claimed in claim 10, wherein each of the side walls of the cover cage comprises a forward side wall and a rearward side wall, the rearward side wall being longer and higher than the forward side wall.

12. The shielding cage assembly as claimed in claim 1, wherein the top wall of the cover cage further defines a plurality of slots.

13. The shielding cage assembly as claimed in claim 12, wherein each of the slots comprises a seam portion and an enlarged opening in communication with the seam portion.

14. The shielding cage assembly as claimed in claim 13, wherein each of the dividing walls comprises a plurality of retaining tabs projecting upwardly and then horizontally from a top edge thereof.

15. The shielding cage assembly as claimed in claim 14, wherein each the retaining tabs comprises a horizontal engaging portion.

16. The shielding cage assembly as claimed in claim 14, wherein the engaging portions of the retaining tabs are staggered at respective opposite sides of the top edge of the dividing wall, and a top profile of each retaining tab is smaller than each enlarged opening of the cover cage.

17. The shielding cage assembly as claimed in claim 1, wherein each of the dividing walls comprises a plurality of mounting pins extending downwardly from a bottom edge thereof.

18. The shielding cage assembly as claimed in claim 1, wherein a peg projects backwardly from an upper portion of a rear edge of each dividing wall.

19. The shielding cage assembly as claimed in claim 1, wherein a weld member extends perpendicularly from a rear edge of each dividing wall.