Electronic device

Patent metadata

Field	Value
Publication number	US-12550304-B2
Application number	US-202218263271-A
Country	US
Kind code	B2
Filing date	Jan 11, 2022
Priority date	Jan 27, 2021
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

An electronic device includes an insulation top cover, a middle frame, a display, and a flexible printed circuit electrically connected to an end of the display, where one side of the insulation top cover is located above an outer edge of the display, and the other side of the insulation top cover is connected to the middle frame. The electronic device further includes an electrostatic protection structure, where the electrostatic protection structure is configured to ground, at the middle frame, static electricity entering the electronic device from a gap between the display and the insulation top cover, to discharge, on the middle frame, the static electricity entering the electronic device.

First claim

What is claimed is:

1 . An electronic device, comprising:
a flexible printed circuit; a display having an outer edge and an end connected to the flexible printed circuit; a ground; a middle frame comprising:
a metal part electrically connected to the ground; and
an assembly groove at a first end of the middle frame;
an insulation top cover comprising:
an inner surface proximate to the flexible printed circuit;
a first part located above the outer edge of the display; and
a second part connected to the middle frame and located in the assembly groove, wherein the first end is located close to the insulation top cover; and
an electrostatic protection structure disposed on the inner surface of the insulation top cover, wherein the electrostatic protection structure comprises:
a guide part; and
ground pins electrically connected to the guide part and the metal part of the middle frame and comprising a first ground pin and a second ground pin disposed at intervals.

2 . The electronic device of claim 1 , wherein the flexible printed circuit comprises a bending region proximate to the middle frame, and wherein the electrostatic protection structure is disposed proximate to the bending region.

3 . The electronic device of claim 2 , wherein the middle frame comprises an outer metal frame and an inner insulation frame, wherein at least a part of the outer metal frame is located on an outer side of the inner insulation frame, and wherein the electrostatic protection structure is electrically connected to the outer metal frame.

4 . The electronic device of claim 3 , wherein the inner insulation frame comprises an inner wall, wherein the electrostatic protection structure is disposed on the inner wall and is proximate to the bending region, wherein the guide part extends along a width direction of the flexible printed circuit, and wherein the ground pins are electrically connected to the outer metal frame.

5 . The electronic device of claim 3 , wherein a distance between the guide part and the outer edge of the display is less than a distance between the bending region and the outer edge of the display.

6 . The electronic device of claim 3 , wherein the electrostatic protection structure is disposed on the inner surface of the insulation top cover, and wherein the electrostatic protection structure comprises:
a first electrostatic protection structure end that is proximate to the first part that is away from the middle frame; and a second electrostatic protection structure end electrically connected to the outer metal frame.

7 . The electronic device of claim 3 , further comprising at least one conductive spring coupled to the second part, wherein the conductive spring is in electrical contact with the electrostatic protection structure, and wherein the conductive spring electrically connects the electrostatic protection structure to the outer metal frame.

8 . The electronic device of claim 7 , wherein the conductive spring has at least one first abutting part configured to be electrically connected with the middle frame such that the conductive spring is electrically connected to the middle frame.

9 . The electronic device of claim 8 , wherein the second part further comprises a first side wall having an avoidance groove, wherein the conductive spring further comprises a second side wall on which the first abutting part is disposed, and wherein the avoidance groove is opposite the second side wall.

10 . The electronic device of claim 7 , wherein the conductive spring further comprises at least one second abutting part configured to be electrically connected with the electrostatic protection structure.

11 . The electronic device of claim 7 , wherein the conductive spring further comprises at least one clamping part configured to clamp the second part such that the conductive spring is coupled to the insulation top cover.

12 . The electronic device of claim 11 , wherein the at least one clamping part is a clamping groove, and wherein a width of the clamping groove is less than a wall thickness at the second part.

13 . The electronic device of claim 11 , wherein the conductive spring further has a position-limiting part, and wherein the second part comprises a position-limiting slot fitting with the position-limiting part at the second part.

14 . The electronic device of claim 13 , wherein the position-limiting part is a hook-shaped structure formed by extending a clamping side wall of the at least one clamping part.

15 . The electronic device of claim 1 , wherein the electrostatic protection structure comprises a conductive layer made of a silver material.

16 . The electronic device of claim 1 , wherein the middle frame comprises:
a first metal frame configured as a first antenna radiator; a third metal frame configured as a second antenna radiator; and a second metal frame separated from the first metal frame and the third metal frame and disposed between the first metal frame and the third metal frame, wherein the second metal frame is electrically connected to the ground pins, and wherein the ground pins are disposed away from the first metal frame and the third metal frame.

17 . The electronic device of claim 16 , wherein the second metal frame comprises two ends, and wherein a spacing width between each of the two ends and each of the first metal frame and the third metal frame is greater than 0.8 millimeters (mm).

18 . The electronic device of claim 1 , wherein the first part and the outer edge of the display at least partially overlap in a thickness direction of the electronic device, and wherein there is a gap between the first part and the display.

19 . The electronic device of claim 18 , wherein the first part comprises a flat outer surface, and wherein the second part comprises an outer surface that is slanted or arced.

Assignees

• Huawei Tech Co Ltd
• Huawei Technolgoies Co Ltd

Inventors

• Liu Yu
• Ma Zhao
• Liao Qikun
• Yang Haijian
• Zhao Yang

Classifications

• H05K9/0084

  comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition · CPC title

• H05K1/189

  characterised by the use of flexible or folded printed circuits · CPC title

• H05K1/028

  Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence) · CPC title

• H04M1/0277

  for a printed circuit board assembly · CPC title

• G02F2202/22

  Antistatic materials or arrangements · CPC title