# US 10,873,656 B2 · Loudspeaker, loudspeaker device and mobile terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,656 B2 - Document ID: US10873656B2 - Status: Granted - Kind: B2 - Application number: 16/542,623 - Filed: 2019-08-16 - Published: 2019-12-05 - Granted: 2020-12-22 - Earliest claimed: 2017-03-14 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Bixiang Yan - Web page: https://patentgrep.com/patent/US10873656B2 ## CPC - H04M 1/035: {Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities} - H04R 1/2811: {for loudspeaker transducers} - H04R 1/288: {for loudspeaker transducers} - H04R 9/06: Loudspeakers - H04R 2499/11: Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - 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) ## Abstract The present disclosure provides a loudspeaker, a loudspeaker device and a mobile terminal. The loudspeaker includes: a frame having an outer circumferential side wall, an inner circumferential side wall arranged opposite to the outer circumferential side wall, and an acoustic output hole penetrating the outer circumferential side wall and the inner circumferential side wall; a diaphragm having a periphery connected with the frame along a circumferential direction; and a drive assembly comprising a first driving member fixed to the diaphragm and a second driving member fixed to the frame, the first driving member being vibratory relative to the second driving member to drive the diaphragm to vibrate, thereby emitting a sound wave and making the sound wave pass through the acoustic output hole. ## Claims ### Claim 1 A loudspeaker device, comprising a box body defining a sealed volume chamber, and a loudspeaker fixed in the sealed volume chamber and comprising: a frame having an outer circumferential side wall, an inner circumferential side wall arranged opposite to the outer circumferential side wall, and an acoustic output hole penetrating the outer circumferential side wall and the inner circumferential side wall; a diaphragm having a periphery directly connected with the frame along a circumferential direction; a cover plate fixed to the frame and arranged opposite to the diaphragm, a drive assembly comprising a first driving member fixed to the diaphragm and a second driving member connected to the cover plate and at least partially fixed to the inner circumferential side wall of the frame and defining a through hole in communication with the acoustic output hole, the first driving member being vibratory relative to the second driving member to drive the diaphragm to vibrate, thereby emitting a sound wave and making the sound wave pass through the through hole and the acoustic output hole; and a mesh covering the acoustic output hole, wherein a sounding cavity is defined among the diaphragm, the cover plate and the inner circumferential side wall of the frame, and the acoustic output hole runs through the sounding cavity. ### Claim 2 (depends on 1) The loudspeaker device according to claim 1, wherein the frame includes a top end connected to the periphery of the diaphragm and a bottom end arranged opposite to the top end. ### Claim 3 (depends on 1) The loudspeaker device according to claim 1, wherein the acoustic output hole is a circular hole. ### Claim 4 (depends on 1) The loudspeaker device according to claim 1, wherein the acoustic output hole is a strip-shaped hole. ### Claim 5 (depends on 1) The loudspeaker device according to claim 1, wherein the frame is made of plastic material. ### Claim 6 (depends on 1) The loudspeaker device according to claim 1, wherein the frame is made of metal material. ### Claim 7 (depends on 1) The loudspeaker device according to claim 1, wherein material of the diaphragm is selected from a group consisting of paper, fiber, metal, wool and silk. ### Claim 8 (depends on 1) The loudspeaker device according to claim 1, wherein the first driving member vibrates relative to the second driving member along a direction substantially parallel to a normal direction of the diaphragm. ### Claim 9 (depends on 1) The loudspeaker device according to claim 1, wherein the first driving member vibrates back and forth relative to the second driving member. ### Claim 10 (depends on 1) The loudspeaker device according to claim 1, wherein the first driving member and the second driving member are both located in the sounding cavity. ### Claim 11 (depends on 1) The loudspeaker device according to claim 1, wherein a distance between the acoustic output hole and the diaphragm is less than a distance between the acoustic output hole and the cover plate. ### Claim 12 A loudspeaker device, comprising a box body defining a sealed volume chamber, a loudspeaker fixed in the sealed volume chamber and comprising: a frame having an outer circumferential side wall, an inner circumferential side wall arranged opposite to the outer circumferential side wall, and an acoustic output hole penetrating the outer circumferential side wall and the inner circumferential side wall; a diaphragm having a periphery directly connected with the frame along a circumferential direction and fixed to the inner circumferential side wall, and partitioning an inside space of the frame into a first cavity body and a second cavity body; a cover plate fixed to the frame and arranged opposite to the diaphragm and closing the second cavity body, and a drive assembly comprising a first driving member fixed to the diaphragm and a second driving member, the first driving member being vibratory relative to the second driving member to drive the diaphragm to vibrate, thereby emitting a sound wave and making the sound wave pass through the acoustic output hole; wherein the first driving member and the second driving member are both fixed in the first cavity body, and the acoustic output hole runs through the second cavity body. ### Claim 13 (depends on 12) The loudspeaker device according to claim 12, wherein the box body comprises a top plate and a bottom plate arranged opposite to the top plate, as well as a side plate fixed between the top plate and the bottom plate. ### Claim 14 (depends on 13) The loudspeaker device according to claim 13, wherein a distance between the side plate and the frame is greater than a distance between the bottom plate and the frame. ### Claim 15 (depends on 12) The loudspeaker device according to claim 12, wherein the acoustic output hole is a strip-shaped hole or a circular hole. ### Claim 16 (depends on 12) The loudspeaker device according to claim 12, wherein a distance between the acoustic output hole and the diaphragm is less than a distance between the acoustic output hole and the cover plate. ### Claim 17 (depends on 13) The loudspeaker device according to claim 13, wherein sound-absorbing particles are filled between the side plate and the frame. ### Claim 18 (depends on 12) The loudspeaker device according to claim 12, further comprising a mesh covering the acoustic output hole. ### Claim 19 (depends on 18) The loudspeaker device according to claim 18, wherein the mesh shields an opening of the acoustic output hole in the outer circumferential side wall, or shields an opening of the acoustic output hole in the inner circumferential side wall. ### Claim 20 A mobile terminal, comprising: a housing having a bottom end; a mainboard fixed in the housing; and a box body defining a sealed volume chamber; a loudspeaker fixed in the sealed volume chamber and fixed to the bottom end and comprising: a frame having an outer circumferential side wall, an inner circumferential side wall arranged opposite to the outer circumferential side wall, and an acoustic output hole penetrating the outer circumferential side wall and the inner circumferential side wall; a diaphragm having a periphery directly connected with the frame along a circumferential direction and fixed to the inner circumferential side wall, and partitioning an inside space of the frame into a first cavity body and a second cavity body; a cover plate fixed to the frame and arranged opposite to the diaphragm and closing the second cavity body; and a drive assembly comprising a first driving member fixed to the diaphragm and a second driving member, the first driving member being vibratory relative to the second driving member to drive the diaphragm to vibrate, thereby emitting a sound wave and making the sound wave pass through the acoustic output hole; wherein the first driving member and the second driving member are both fixed in the first cavity body and the acoustic output hole runs through the second cavity body.