Electronic device with electromagnetic shielding function

• US 8,537,568 B2
• Filed: 10/26/2011
• Issued: 09/17/2013
• Est. Priority Date: 08/19/2011
• Status: Expired due to Fees

• Current Assignee: Futaihua Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Futaihua Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: Tang, Zi-Ming
• Primary Examiner(s): Nguyen, Hoa C
• Assistant Examiner(s): BROWN, ROBERT D
• Application Number:
  US13/281,628
• Publication Number:
  US 20130044451A1
• Time in Patent Office: 692 Days
• Field of Search: 361/807, 361/679.55, 361/679.56, 361/818, 361/800, 361/816, 361/799, 361/753, 174/350, 174/351, 174/32, 455/575.1
• US Class Current: 361/818
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/182 with special features, e.g. for use in industrial environments; grounding or shielding against radio frequency interference [RFI] or electromagnetical interference [EMI]

Abstract

An electronic device includes a housing, a fixed frame, a plurality of conductive foam pieces, and a display panel. The fixed frame is assembled and received within the housing. The fixed frame defines a plurality of fixing grooves adjacent to a periphery of the fixed frame. The conductive foam pieces are assembled within the fixing grooves of the fixed frame, respectively, and are coplanar with the fixed frame. The display panel is flatly mounted on the fixed frame and received within the housing together with the fixed frame. The periphery of the display panel tightly contacts with the conductive foam pieces.

Claims

1. An electronic device, comprising:

a housing;

a fixed frame assembled and received within the housing, the fixed frame defining a

plurality of fixing grooves adjacent to a periphery of the fixed frame;

a plurality of conductive foam pieces assembled within the corresponding fixing grooves of the fixed frame, and being coplanar with the fixed frame; and

a display panel flatly mounted on the fixed frame and received within the housing

together with the fixed frame, and a periphery of the display panel tightly contacting with the conductive foam pieces;

wherein each conductive foam piece has a thickness slightly larger than the depth of one corresponding fixing groove of the fixed frame; and

wherein the fixed frame comprises four recessions recessed from four corners of the fixed frame, each recession comprises a plurality of small troughs separately defined in the bottom surface thereof, and two fixing grooves separately defined in the bottom surface of each recession;

the conductive foam piece is assembled within the fixing groove of the fixed frame, partially exposed from the corresponding fixing groove of the fixed frame, and accommodated within the corresponding recession of the fixed frame.

2. The electronic device of claim 1, wherein the fixed frame comprises a plurality of recessions recessed from a top surface thereof and positioned adjacent to the periphery of the fixed frame, the fixing grooves are separately defined in the bottom surfaces of the recessions of the fixed frame;

the conductive foam piece is assembled within the corresponding fixing groove of the fixed frame, partially exposed from the corresponding fixing groove of the fixed frame, and accommodated within the corresponding recession of the fixed frame.

3. The electronic device of claim 1, wherein a thickness of the conductive foam piece is substantially 1.33 times as the depth of the fixing groove of the fixed frame.

4. The electronic device of claim 1, wherein the electronic device further comprises four strengthening corner pieces, the four strengthening corner pieces are assembled within the four recessions of the fixed frame, respectively, and tightly contact with the corresponding conductive foam pieces, for strengthening the fixed frame.

5. The electronic device of claim 4, wherein, the strengthening corner piece is a metal piece assembled within the recession of the fixed frame via a glue, and the glue is dispensed within the small troughs.

6. The electronic device of claim 4, wherein, the housing comprises a bottom wall and a peripheral wall extending from the periphery of the bottom wall, the peripheral wall and the bottom wall cooperatively define a receiving space for accommodating the corresponding fixed frame and the display panel;

the electronic device further comprises a mounting frame, the mounting frame is fixedly mounted to the peripheral wall of the housing, and the mounting frame encloses and surrounds the display panel.

7. The electronic device of claim 4, wherein, the strengthening corner piece is a metal piece assembled within the recession of the fixed frame via glue.

8. The electronic device of claim 1, wherein the conductive foam piece is made of an elastic and conductive material.

9. An electronic device, comprising

a housing comprising a bottom wall and a peripheral wall extending from the periphery of the bottom wall, the peripheral wall and the bottom wall cooperatively defining a receiving space;

a fixed frame assembled and received within the receiving space of the housing,

a plurality of fixing grooves defined in the fixed frame and positioned adjacent to a periphery of the fixed frame;

a plurality of conductive foam pieces assembled within the corresponding fixing grooves of the fixed frame, and being coplanar with the fixed frame;

a display panel flatly mounted on the fixed frame and received within the receiving space of the housing together with the fixed frame, and a periphery of the display panel being tightly in contact with the conductive foam pieces; and

a mounting frame fixedly mounted to the peripheral wall of the housing and surrounding the display panel;

wherein each conductive foam piece has a thickness slightly larger than the depth of one corresponding fixing groove of the fixed frame;

wherein the fixed frame comprises four recessions recessed from four corners of the fixed frame, each recession comprises a plurality of small troughs separately defined in the bottom surface thereof, and two fixing grooves separately defined in the bottom surface of each recession;

the conductive foam piece is assembled within the fixing groove of the fixed frame, partially exposed from the corresponding fixing groove of the fixed frame, and accommodated within the corresponding recession of the fixed frame.

10. The electronic device of claim 9, wherein a thickness of the conductive foam piece is substantially 1.33 times as the depth of the fixing groove of the fixed frame.

11. The electronic device of claim 9, wherein the electronic device further comprises a plurality of strengthening corner pieces, the strengthening corner pieces are assembled within the recessions of the fixed frame, respectively, and tightly contact with the corresponding conductive foam piece, for strengthening the fixed frame.

12. The electronic device of claim 11, wherein the conductive foam piece is made of an elastic and conductive material.