# US 2019/0379966 A1 · Speaker module for mobile device and mobile device having duct radiation structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0379966 A1 - Document ID: US20190379966A1 - Status: Published application - Kind: A1 - Application number: 16/548,227 - Filed: 2019-08-22 - Published: 2019-12-12 - Earliest claimed: 2012-02-24 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Byounghee LEE; Kiwon KIM - Web page: https://patentgrep.com/patent/US20190379966A1 ## CPC - H04R 1/288: {for loudspeaker transducers} - H04M 1/035: {Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities} - H04R 1/00: Details of transducers, {loudspeakers or microphones} - H04R 1/023: {Screens for loudspeakers} - H04R 1/025: {Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture} - H04R 1/086: {Protective screens, e.g. all weather or wind screens} - H04R 1/28: Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means {(combinations of transducers with horns, i.e. front-loaded horns H04R1/30)} - H04R 1/2811: {for loudspeaker transducers} - H04R 1/2857: {for loudspeaker transducers} - H04R 1/34: by using a single transducer with sound reflecting, diffracting, directing or guiding means {(specially adapted for hearing aids H04R25/402)} - H04R 1/345: {for loudspeakers} - H04R 2499/11: Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract A speaker module for a mobile device is provided. The speaker module changes a shape of an opening surface of a duct to which a protection member for preventing a foreign substance from entering is attached. The speaker module includes a speaker for outputting a sound signal, a body in which the speaker is mounted, a duct connected to the body for forming a radiation path of a sound signal output from the speaker, and a protection member attached to an opening surface of the duct for preventing a foreign substance from entering the speaker module, wherein the opening surface has an area larger than that of a cross-sectional opening surface formed vertically with respect to a length direction of the duct. ## Claims ### Claim 1 A speaker module fastened to a mobile device, the speaker module comprising: a speaker for outputting a sound signal; a body in which the speaker is mounted; a duct connected to the body for forming a radiation path of a sound signal output from the speaker; and a protection member attached to an opening surface of the duct for preventing a foreign substance from entering the speaker module, wherein the opening surface has an area larger than that of a cross-sectional opening surface formed vertically with respect to a length direction of the duct. ### Claim 2 (depends on 1) The speaker module of claim 1, wherein the opening surface has a tilt, a curvature, or a stepwise form in a length direction of the duct. ### Claim 3 (depends on 1) The speaker module of claim 1, wherein the speaker module is fastened to a body of the mobile device. ### Claim 4 (depends on 3) The speaker module of claim 3, further comprising a soundproof member positioned between a speaker hole formed in the body of the mobile device and the duct. ### Claim 5 (depends on 3) The speaker module of claim 3, wherein the protection member is attached to an opening surface of a duct structure formed in the body of the mobile device to couple to the duct. ### Claim 6 A speaker module fastened to a mobile device, the speaker module comprising: a speaker for outputting a sound signal; a body in which the speaker is mounted; a duct connected to the body and comprising a first opening surface, a second opening surface, and a third opening surface, which are a radiation path of a sound signal output from the speaker; and a protection member attached to the second opening surface for preventing a foreign substance from entering the speaker module, wherein the first opening surface is formed at one side end of the duct, the second opening surface is formed within the duct, the third opening surface is formed to expose the second opening surface, and an area of the second opening surface has an area larger than that of a cross-sectional opening surface formed vertically with respect to a length direction of the duct. ### Claim 7 (depends on 6) The speaker module of claim 6, further comprising a soundproof cover fastened to the third opening surface. ### Claim 8 (depends on 6) The speaker module of claim 6, wherein the speaker module is fastened to a body of the mobile device. ### Claim 9 (depends on 8) The speaker module of claim 8, further comprising a soundproof member positioned between the body of the mobile device and the duct for preventing the sound signal from being leaked. ### Claim 10 (depends on 8) The speaker module of claim 8, wherein the body of the mobile device comprises a structure for blocking the third opening surface. ### Claim 11 (depends on 8) The speaker module of claim 8, further comprising a soundproof member positioned between the body of the mobile device and the third opening surface. ### Claim 12 (depends on 6) The speaker module of claim 6, wherein a protection member more sparsely spaced than the protection member attached to the second opening surface is attached to the first opening surface. ### Claim 13 A speaker module fastened to a mobile device, the speaker module comprising: a speaker for outputting a sound signal; a body in which the speaker is mounted; a duct connected to the body and having a first opening surface and a second opening surface for radiating a sound signal output from the speaker; and a protection member attached to enclose the first opening surface and the second opening surface for preventing a foreign substance from entering the speaker module, wherein the first opening surface is formed vertically or inclined with respect to a length direction of the duct, and the second opening surface is formed parallel or inclined with respect to a length direction of the duct. ### Claim 14 (depends on 13) The speaker module of claim 13, wherein the speaker module is fastened to a body of the mobile device. ### Claim 15 (depends on 14) The speaker module of claim 14, wherein the second opening surface of the speaker module is not blocked by the body of the mobile device, when the second opening surface is fastened to the body of the mobile device. ### Claim 16 (depends on 14) The speaker module of claim 14, further comprising a soundproof member positioned between the first opening surface and a speaker hole formed in the body of the mobile device for preventing leakage of a sound signal output from the first opening surface.