Electronic device including acoustic duct having a vibratable sheet

Patent metadata

Field	Value
Publication number	US-11228832-B2
Application number	US-202016841784-A
Country	US
Kind code	B2
Filing date	Apr 7, 2020
Priority date	Apr 9, 2019
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

An electronic device is disclosed. According to an embodiment of the disclosure, the electronic device comprises a housing including a plate defining a first face of the electronic device and a side portion extending along an edge of the plate and defining a side face of the electronic device, a speaker including a sound outlet disposed in a support portion of the housing extending from the side member to an inner space of the electronic device, the sound outlet disposed in a direction facing the first face, a sheet disposed between the plate and the speaker, and an acoustic duct defined in part by the sheet and the support portion, spaced apart from the plate, and extending from the sound outlet of the speaker to the side face.

First claim

What is claimed is:

1. An electronic device comprising:
a housing including a rear plate defining a first face of the electronic device and a side portion extending along an edge of the rear plate and defining a side face of the electronic device;
a speaker including a sound outlet disposed on a support portion of the housing extending from the side portion to an inner space of the electronic device, the sound outlet disposed in a direction facing the first face;
a sheet disposed between the rear plate and the sound outlet of the speaker and displaced from the rear plate, at least a portion of the sheet disposed across from at least a portion of the sound outlet of the speaker; and
an acoustic duct defined at least in part by the sheet and the support portion, the acoustic duct being spaced apart from the rear plate and extending from the sound outlet of the speaker to the side face,
wherein the sheet is configured to vibrate in response to a sound emitted from the speaker, and
wherein the sheet is spaced apart from the rear plate by a distance in a range of from 0.05 to 0.20 mm.

2. The electronic device of claim 1 , wherein the sheet includes a concavo-convex portion on one face.

3. The electronic device of claim 1 , wherein the sheet includes at least one of poly carbonate or stainless steel.

4. The electronic device of claim 1 , wherein the sheet is disposed to be parallel with the first face.

5. The electronic device of claim 1 , wherein the speaker includes a protection member disposed on a face where the sound outlet is disposed.

6. The electronic device of claim 1 , further comprising a first seal configured to seal a space in which the support portion and the sheet are adjacent to each other.

7. The electronic device of claim 6 , further comprising a second seal configured to seal a sound emitted toward a rear face of the sound outlet.

8. The electronic device of claim 1 , further comprising a display defining a second face of the electronic device, facing the first face, and including a plurality of layers.

9. The electronic device of claim 1 , wherein the acoustic duct includes a first space extending from the sound outlet of the speaker along the sheet, a second space extending from the first space in a direction away from the rear plate, and a third space extending from the second space toward the side face.

10. The electronic device of claim 9 , wherein the sheet is a part of the first space.

11. The electronic device of claim 9 ,
wherein, in the acoustic duct, a cross-section of the first space is less than a cross-section of the second space or a cross-section of the third space, and
wherein the cross-section of each of the first space, the second space and the third space is vertical to a direction in which a sound travels in the acoustic duct.

12. The electronic device of claim 1 , wherein the side portion is integral with the rear plate.

13. An electronic device comprising:
a rear plate defining a first face of the electronic device;
a display defining a second face of the electronic device, facing the first face, and including a plurality of layers;
a side portion of a housing extending along an edge of the rear plate and defining a side face of the electronic device;
a speaker including a sound outlet disposed on a support portion of the housing extending from the side portion to an inner space and configured to emit a sound in a direction facing the first face;
a sheet disposed between the rear plate and the sound outlet of the speaker and displaced from the rear plate, at least a portion of the sheet disposed across from at least a portion of the sound outlet of the speaker;
a first space provided along the sheet and the support portion and spaced apart from the rear plate, the first space configured to pass a sound emitted from the sound outlet;
a second space provided by the support portion, coupled to the first space, and extending from the first space in a direction away from the rear plate; and
a third space provided by the support portion, coupled to the second place, and extending from the second space in a direction facing the side face,
wherein the sheet is configured to vibrate in response to a sound emitted from the speaker, and

wherein the sheet is spaced apart from the rear plate by a distance in a range of from 0.05 to 0.20 mm.

14. The electronic device of claim 13 ,
wherein a cross-section of the second space is greater than a cross-section of the first space, wherein the first space and the second space are configured so that a sound passed through the first space passes through the second space,
wherein the cross-section of the first space is vertical to a direction in which a sound passing through the first space travels, and
wherein the cross-section of the second space is vertical to a direction in which a sound passing through the second space travels.

15. The electronic device of claim 14 ,
wherein a cross-section of the third space is greater than the cross-section of the first space, wherein the second space and the third space are configured so that a sound passed through the second space passes through the third space, and
wherein the cross-section of the third space is vertical to a direction in which a sound passing through the third space travels.

16. The electronic device of claim 13 , wherein the sheet includes a material having a rigidity less than a rigidity of the support portion.

17. The electronic device of claim 13 , wherein the sheet includes at least one of poly carbonate or stainless steel.

18. The electronic device of claim 13 , wherein the sheet is disposed to be parallel with the first face.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Sim Myoungsung
• Park Youngbae
• Park Choonghyo
• Lee Byounghee
• Kim Seungnam
• Woo Juhwan
• Hwang Hochul

Classifications

• H04R7/04

  Plane diaphragms · CPC title

• H04R1/2849 Primary

  for loudspeaker transducers · CPC title

• H04R1/2811 Primary

  for loudspeaker transducers · CPC title

• H04M1/0266

  for a display module assembly · CPC title

• H04R2499/15

  Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops · CPC title