Structure of electronic device and electronic device

Patent metadata

Field	Value
Publication number	US-11379000-B2
Application number	US-201716755304-A
Country	US
Kind code	B2
Filing date	Oct 13, 2017
Priority date	Oct 13, 2017
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

A structure of an electronic device and an electronic device are disclosed. The structure includes: a cover, a fingerprint decorative component, and a fingerprint sensor. The cover covers a surface of the electronic device, and the cover has a first through hole. The fingerprint decorative component is built in the first through hole, the fingerprint decorative component includes a side wall of the fingerprint decorative component and a bottom wall of the fingerprint decorative component that are integrally connected, the side wall of the fingerprint decorative component is fastened to the cover by using glue. The fingerprint sensor is accommodated in the fingerprint decorative component. The fingerprint decorative component is fastened to the cover by using the glue, and no additional fastening plate and screw is required for fastening, thereby improving overall space utilization of the electronic device.

First claim

What is claimed is:

1. A structure of an electronic device, comprising:
a cover covering a surface of the electronic device, wherein the cover comprises a first surface and a second surface, and the cover has a first through hole and a first slope in a direction from the first surface to the first through hole;
a fingerprint decorative component built in the first through hole, wherein the fingerprint decorative component comprises a side wall and a bottom wall that are integrally connected, the side wall of the fingerprint decorative component and the first slop of the cover form a funnel-shaped opening, the side wall of the fingerprint decorative component is fastened to the cover by glue, the funnel-shaped opening is filled with the glue, and the bottom wall of the fingerprint decorative component has a second through hole; and
a fingerprint sensor accommodated in the fingerprint decorative component, wherein the fingerprint sensor is fixedly connected to the bottom wall of the fingerprint decorative component, and a cable of the fingerprint sensor is led out from the second through hole.

2. The structure according to claim 1 , wherein
the side wall of the fingerprint decorative component has a second slope in a direction from the bottom wall of the fingerprint decorative component to the cover, the second slope of the side wall and the first slope of the cover form the funnel-shaped opening.

3. The structure according to claim 2 , wherein an opening angle of the funnel-shaped opening formed by the second slope and the first slope ranges from 60° to 120°.

4. The structure according to claim 1 , wherein
the cover has a second slope in a direction from the second surface to the first through hole; and
the side wall of the fingerprint decorative component has an annular protrusion next to the second slope of the cover, and a protruding direction of the annular protrusion is aligned with a direction of the second slope of the cover.

5. The structure according to claim 4 , wherein
a gap between the annular protrusion and the second slope has a size such that the glue cannot flow out of the gap before the glue is cured.

6. The structure according to claim 4 , wherein
a surface, opposite to the cover, of the annular protrusion is parallel to the second slope, and an acute angle between the second slope and the second surface of the cover ranges from 30° to 60°.

7. The structure according to claim 1 , wherein
the side wall of the fingerprint decorative component has a second slope in the direction from the bottom wall of the fingerprint decorative component to the cover, the second slope of the side wall and the first slope of the cover form the funnel-shaped opening;
the cover has a third slope in the direction from the second surface to the first through hole;
the side wall of the fingerprint decorative component has an annular protrusion next to the third slope, and the annular protrusion is aligned with the direction of the third slope of the cover; and
a recess is formed between the second slope of the side wall and the annular protrusion of the side wall, the recess is facing the cover, and the recess is filled with the glue.

8. The structure according to claim 1 , wherein an elastic modulus of the glue ranges from 80 Mpa to 200 Mpa.

9. The structure according to claim 1 , wherein the glue comprises acrylic acid and fumed silica, modified silicone gel, or modified epoxy resin.

10. The structure according to claim 1 , wherein the fingerprint decorative component comprises metal, ceramic, plastic, or glass.

11. The structure according to claim 1 , wherein the side wall of the fingerprint decorative component is in a circular or track shape, and a height of the side wall of the fingerprint decorative component ranges from 0.5 mm to 1.2 mm.

12. The structure according to claim 1 , further comprising:
a connector disposed between an inner side of the bottom wall of the fingerprint decorative component and the fingerprint sensor, wherein a thickness of the connector is configured to allow the fingerprint sensor to be accommodated in the fingerprint decorative component, a height of the fingerprint sensor is not larger than a height of the side wall of the fingerprint decorative component.

13. The structure according to claim 12 , wherein the connector is a foam tape.

14. The structure according to claim 1 , wherein the fingerprint sensor comprises:
a fingerprint recognition chip and a package of the fingerprint recognition chip;
a fingerprint cover covering the fingerprint recognition chip and the package of the fingerprint recognition chip; and
a cable comprising a lead electrically connected to the fingerprint recognition chip and the package of the fingerprint recognition chip, a flexible circuit board being electrically connected to the lead.

15. The structure according to claim 1 , wherein the funnel-shaped opening is shaped as a funnel when viewed from a direction substantially parallel to the cover.

16. An electronic device, wherein the electronic device comprises a structure, comprising:
a cover covering a surface of the electronic device, wherein the cover comprises a first surface and a second surface, and the cover has a first through hole and a first slope in a direction from the first surface to the first through hole;
a fingerprint decorative component built in the first through hole, wherein the fingerprint decorative component comprises a side wall and a bottom wall that are integrally connected, the side wall of the fingerprint decorative component and the first slope of the cover form a funnel-shaped opening, the side wall of the fingerprint decorative component is fastened to the cover by glue, the funnel-shaped opening is filled with the glue, and the bottom wall of the fingerprint decorative component has a second through hole; and
a fingerprint sensor accommodated in the fingerprint decorative component, wherein the fingerprint sensor is fixedly connected to the bottom wall of the fingerprint decorative component, and a cable of the fingerprint sensor is led out from the second through hole.

17. The electronic device according to claim 16 , wherein
the side wall of the fingerprint decorative component has a second slope in a direction from the bottom wall of the fingerprint decorative component to the cover, the second slope of the side wall and the first slope of the cover form a funnel-shaped opening, and the funnel-shaped opening is filled with the glue.

18. The electronic device according to claim 16 , wherein
the cover has a second slope in a direction from the second surface to the first through hole; and
the side wall of the fingerprint decorative component has an annular protrusion next to the second slope, and a protruding direction of the annular protrusion is aligned with a direction of the second slope of the cover.

19. The electronic device according to claim 18 , wherein
a gap between the annular protrusion and the second slope has a size such that the glue is cannot flow out of the gap before the glue is cured.

20. The electronic device according to claim 18 , wherein
a surface, opposite to the cover, of the annular protrusion is parallel to the second slope, and an acute angle between the second slope and the second surface of the cover ranges from 30° to 60°.

21. The electronic device according to claim 16 , wherein
the side wall of the fingerprint decorative component has a second slope in the direction from the bottom wall of t

Assignees

• Huawei Tech Co Ltd

Inventors

• Yin Bangshi
• Luo Jianhong
• Cao Shenghui
• Ma Dong
• Guo Wenping
• Guo Yang

Classifications

• G06F21/32 Primary

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title

• G06F1/1684

  Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 · CPC title

• G06F1/1626

  with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs] · CPC title

• G06F1/16 Primary

  Constructional details or arrangements · CPC title