US-20260129353-A1 - ELECTRONIC DEVICE INCLUDING SPEAKER

US20260129353A1US 20260129353 A1US20260129353 A1US 20260129353A1US-20260129353-A1

Abstract

An electronic device includes a vibration (sound) generator having a center in a first direction, and a sound conduit through which the sound is transmitted. The sound conduit includes an opening through which the sound is transmitted to outside, a first sound conduit connected to the opening at a first end of the first sound conduit, and a second sound conduit connected to a second end of the first sound conduit, the first sound conduit extending a first length in the first direction from the opening, the second sound conduit extending a second length in the first direction from the second end of the first sound conduit, and the first sound conduit extending a third length in the first direction from the center of the vibration generator to the second end of the first conduit. The second length is derived based on the first length and the third length.

Inventors

Hunki Lee
Kiwon Kim
Taeeon KIM
Seongkwan YANG
Taeyoung Park
Woojin Cho
Joonrae CHO

Assignees

SAMSUNG ELECTRONICS CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20260106
Priority Date: 20230717

Claims (20)

1 . An electronic device comprising: a vibration generator which generates a sound, the vibration generator having a center in a first direction; and a sound conduit through which the sound generated by the vibration generator is transmitted, the sound conduit on a front surface of the vibration generator, wherein the sound conduit includes: a radiation opening of the electronic device through which the sound is transmitted to outside of the electronic device from the sound conduit; a first sound conduit which is connected to the radiation opening at a first end of the first sound conduit; and a second sound conduit which is connected to the first sound conduit at a second end of the first sound conduit which is opposite to the first end, the second sound conduit having a closed end opposite to the first sound conduit; the first sound conduit extending a first length in the first direction from the radiation opening; the second sound conduit extending a second length in the first direction from the second end of the first sound conduit; and the first sound conduit extending a third length in the first direction from the center of the vibration generator to the second end of the first conduit; and the second length is derived based on the first length and the third length.
2 . The electronic device of claim 1 , wherein a first effective length of the sound conduit is derived from a shape of the sound conduit, and the second length is further derived based on the first length, the third length and the first effective length.
3 . The electronic device of claim 2 , wherein a measured sound pressure level of the electronic device includes a sound speed of air located inside the sound conduit and a peak of sound pressure generated from the vibration generator, when the sound conduit has a minimum second length, the second length of the sound conduit satisfies [Equation 1] L ⁢ 1 - 3 × L ⁢ 3 2 < L ⁢ 2 < L ⁢ 1 ⁢ e - 3 × L ⁢ 3 2 , where L 1 , L 2 and L 3 are the first length, the second length and the third length, respectively, and L 1 e is the first effective length, and L 1 e satisfies [Equation 2] L ⁢ 1 ⁢ e = 3 × c 4 × ( f_peak ) , where ‘c’ represents the sound speed of air and ‘f_peak” represents a frequency of the vibration generator which corresponds to the peak of sound pressure.
4 . The electronic device of claim 1 , wherein each of the first sound conduit and the second sound conduit has a width in a second direction crossing the first direction, and the width of the second sound conduit is smaller than the width of the first sound conduit.
5 . The electronic device of claim 1 , wherein the second sound conduit includes a plurality of sub-sound conduits arranged spaced apart from each other in a second direction crossing the first direction.
6 . The electronic device of claim 5 , wherein the plurality of sub-sound conduits have different widths in the second direction.
7 . The electronic device of claim 5 , wherein a sum of the widths of the plurality of sub-sound conduits is smaller than a width of the first sound conduit in the second direction.
8 . The electronic device of claim 1 , wherein the second sound conduit has a major dimension extended along a second direction crossing the first direction.
9 . The electronic device of claim 1 , further comprising: a support body in which the vibration generator is disposed, the support body surrounding the vibration generator, and a cover which faces the vibration generator with the first sound conduit therebetween and faces the support body with the second sound conduit therebetween.
10 . The electronic device of claim 9 , further comprising an adhesive member which is on the support body and couples the cover to the support body.
11 . The electronic device of claim 9 , wherein the cover is a display which visually displays information to the outside of the electronic device.
12 . The electronic device of claim 9 , wherein the support body comprises a portion which overlaps the front surface of the vibration generator at a fixed area of the support body.
13 . The electronic device of claim 1 , further comprising: a support body in which the vibration generator is disposed; and a cover including a cover area facing the support body with the second sound conduit therebetween, wherein the support body includes stainless steel, and the sound conduit is a space at least partially surrounded by the vibration generator, the support body and the cover.
14 . The electronic device of claim 1 , further comprising: a first support body; a second support body on the first support body; and a cover which faces the first support body with the second sound conduit therebetween and is coupled to the second support body at the closed end of the second sound conduit, wherein the first support body and the cover includes stainless steel, and the sound conduit is a space at least partially surrounded by the vibration generator, the first support body, the cover and the second support body.
15 . The electronic device of claim 1 , wherein the radiation opening has a center in a second direction crossing the first direction, the center of the radiation opening is spaced apart from a center of the vibration generator in a direction along the second direction, and the sound conduit further includes a third sound conduit connected to the first sound conduit, the third sound conduit extended from the first sound conduit in a direction opposite to the direction in which the center of the radiation opening is spaced apart from the center of the vibration generator in the direction along the second direction.
16 . An electronic device comprising: a vibration generator which generates a sound; a support body in which the vibration generator is disposed, the support body surrounding the vibration generator in a plan view; a cover which faces and is spaced apart from both the vibration generator and the support body; and a sound conduit through which the sound generated by the vibration generator is transmitted, wherein the sound conduit: a radiation opening defined in the support body and through which the sound is transmitted to outside the electronic device in a first direction the electronic device; a first sound conduit which is connected to the radiation opening at a first end of the first sound conduit, the first sound conduit extending a first length from the radiation opening, in a direction opposite to the first direction; and a second sound conduit connected to the first sound conduit at a second end of the first sound conduit which is opposite to the first end, the second sound conduit extending a second length from the second end of the first sound conduit, in the direction opposite to the first direction, and having a closed end opposite to the first sound conduit.
17 . The electronic device of claim 16 , wherein the vibration generator has a center in the first direction; the first length of the first sound conduit includes a third length from the center of the vibration generator to the second end of the of the first sound conduit; and a measured sound pressure level of the electronic device includes a sound speed of air located inside the sound conduit and a peak of sound pressure generated from the vibration generator, when the second conduit has a minimum second length; and the second length of the sound conduit satisfies [Equation 1] L ⁢ 1 - 3 × L ⁢ 3 2 < L ⁢ 2 < L ⁢ 1 ⁢ e - 3 × L ⁢ 3 2 , where L 1 , L 2 and L 3 are the first length, the second length and the third length, respectively, and L 1 e is a first effective length, and L 1 e satisfies [Equation 2] L ⁢ 1 ⁢ e = 3 × c 4 × ( f_peak ) , where ‘c’ represents the sound speed of air and ‘f_peak” represents a frequency of the vibration generator which corresponds to the peak of sound pressure.
18 . An electronic device comprising: a vibration generator which generates a sound; a support body in which the vibration generator is disposed, the support body having a radiation opening defined therein through which the sound is transmitted to outside the electronic device in a first direction the electronic device; and a cover which faces and is spaced apart from both the vibration generator and the support body, to define a sound conduit through which the sound generated by the vibration generator is transmitted, wherein the sound conduit includes: a first sound conduit which overlaps the vibration generator and is connected to the radiation opening; a second sound conduit which extends from the first sound conduit in a direction opposite to the first direction, the second sound conduit having a closed end opposite to the first sound conduit; and the first sound conduit and the second sound conduit having a first width and a second width which is smaller than the first width, respectively, in a second direction crossing the first direction.
19 . The electronic device of claim 18 , wherein a boundary between the first sound conduit and the second sound conduit is a first length from the radiation opening, and the closed end of the second conduit is a second length from the first sound conduit, in the direction opposite to the first direction, the vibration generator has a center in the first direction; the first length of the first sound conduit includes a third length from the center of the vibration generator to the boundary; a measured sound pressure level of the electronic device includes a sound speed of air located inside the sound conduit and a peak of sound pressure generated from the vibration generator, when the second conduit has a minimum second length; and the second length of the sound conduit satisfies [Equation 1] L ⁢ 1 - 3 × L ⁢ 3 2 < L ⁢ 2 < L ⁢ 1 ⁢ e - 3 × L ⁢ 3 2 , where L 1 , L 2 and L 3 are the first length, the second length and the third length, respectively, and L 1 e is a first effective length, and L 1 e satisfies [Equation 2] L ⁢ 1 ⁢ e = 3 × c 4 × ( f_peak ) , where ‘c’ represents the sound speed of air and ‘f_peak” represents a frequency of the vibration generator which corresponds to the peak of sound pressure.
20 . The electronic device of claim 18 , wherein each of the first sound conduit and the second sound conduit has a width in a second direction crossing the first direction, and the width of the second sound conduit is smaller than the width of the first sound conduit.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation application of International Application No. PCT/KR2024/010287 designating the United States, filed on Jul. 17, 2024, in the Korean Intellectual Property Receiving Office and claiming priority to Korean Patent Application No. 10-2023-0092457, filed on Jul. 17, 2023, and Korean Patent Application No. 10-2023-0104190, filed on Aug. 9, 2023, in the Korean Intellectual Property Office, the disclosures of which are incorporated by reference herein in their entireties. BACKGROUND (1) Field The present disclosure relates to an electronic device including a speaker. (2) Description of the Related Art An electronic device (e.g., a speaker device) may include a conduit unit disposed on the front surface of a vibration unit (e.g., a speaker unit). Sound generated by the vibration unit may be radiated to the side surface of the electronic device through the conduit unit. The sound pressure level (SPL) generated by a vibration unit may vary depending on changes in the frequency of the vibration unit. Depending on the changes in the frequency of the vibration unit, the sound pressure level may include local peaks and troughs. SUMMARY For the improvement of the low-frequency acoustic performance of an electronic device (e.g., a speaker device), a relatively large-sized vibration unit (e.g., a speaker unit) may be included. As the size of the vibration unit increases, the distance from the center to the edge of the vibration unit may increase. As the distance from the center to the edge of the vibration unit increases, the sound quality of the electronic device may deteriorate because of the local troughs in the sound pressure level. Therefore, a structure is desired which can reduce the performance degradation of an electronic device (e.g., a speaker device) which include a relatively large-sized vibration unit. An electronic device according to an embodiment of the present disclosure includes a vibration unit for generating a sound, and a conduit unit which is formed on the front surface of the vibration unit, and which is the space through which the sound generated by the vibration unit is transmitted, where the conduit unit includes a radiation opening for transmitting the sound to the outside of the electronic device, a first tube, which is connected to the radiation opening at one end thereof and extends a first length, and a second tube, which is connected to the first tube at the other end of the first tube, extends a second length in the direction opposite to that of the radiation opening, and is shaped to have a closed end, and the second length can be determined on the basis of the first length and a third length, which is the length from the center of the vibration unit to the other end of the first tube. An electronic device according to an embodiment of the present disclosure includes a vibration unit which generates sound, a support unit which surrounds the vibration unit, a cover which is disposed to be spaced apart from the vibration unit, and a conduit unit formed by the cover and the support unit, where the conduit unit may include a radiation opening for transmitting the sound to the outside of the electronic device, a first tube, which is connected to the radiation opening at one end thereof and extends a first length, and a second tube, which is connected to the first tube at the other end of the first tube, extends a second length in the direction opposite to that of the radiation opening, and is shaped to have a closed end. An electronic device according to an embodiment of the present disclosure may include a separate closed tube to improve the acoustic performance of the electronic device. An electronic device according to an embodiment of the present disclosure may eliminate second peaks and troughs in sound pressure level according to frequency changes of a vibration unit by including a separate closed tube. An electronic device according to an embodiment of the present disclosure may utilize various frequency bands by eliminating second peaks and troughs in sound pressure levels, thereby further improving the acoustic performance of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS The above and other aspects, features, and advantages of specific embodiments of the present disclosure will become clearer from the following detailed description, which is provided together with the accompanying drawings. FIG. 1 is a block diagram of an electronic device within a network environment according to an embodiment. FIGS. 2a, 2b, and 2c are perspective views illustrating an electronic device according to an embodiment of the present disclosure. FIG. 3 is a cross-sectional side view of a vibration unit and a conduit unit of an electronic device according to an embodiment of the present disclosure. FIG. 4 is a plan view of a vibration unit and a conduit unit of the electronic device according to an embodiment of the present d