# US 12,003,917 B2 · Speaker > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,917 B2 - Document ID: US12003917B2 - Status: Granted - Kind: B2 - Application number: 17/833,877 - Filed: 2022-06-06 - Published: 2023-07-27 - Granted: 2024-06-04 - Earliest claimed: 2022-01-21 - Assignees: AAC Microtech (Changzhou) Co., Ltd. - Applicants: AAC Microtech (Changzhou) Co., Ltd. - Inventors: Hongjian Hu; Shuai Li - Web page: https://patentgrep.com/patent/US12003917B2 ## CPC - H04R 1/2811: {for loudspeaker transducers} - H04R 1/288: {for loudspeaker transducers} - G10K 11/16: Methods or devices for protecting against, or for damping, noise or other acoustic waves in general (G10K11/36 takes precedence) - H04R 1/026: {Supports for loudspeaker casings} - H04R 9/027: {Air gaps using a magnetic fluid} - H04R 9/06: Loudspeakers - H04R 1/021: {incorporating only one transducer} - H04R 9/025: {Magnetic circuit} - H04R 31/00: Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor {(manufacture of microstructural arrangements of deformable or non-deformable structures in general B81C1/00182)} - 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) - G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR ## Abstract The present invention provides a speaker, including: a housing body having an accommodation cavity with a first chamber and a second chamber; a first side wall and a second side wall enclosing the first chamber; a third side wall and a fourth side wall enclosing the second chamber; and a speaker unit including a connection part located in the first chamber and a sounding component connecting to the connection part. A distance between the first side wall and the second side wall is smaller than a distance between the third side wall and the fourth side wall. The speaker enables the connection part to be connected to the side wall of the housing body without the end of the connection part needing to exceed the end of the sounding component, which reduces the volume of the housing body and facilitates the miniaturized design of the speaker. ## Claims ### Claim 1 A speaker, including: a housing body having an accommodation cavity with a first chamber and a second chamber oppositely arranged along a height direction; a first side wall and a second side wall enclosing the first chamber along a width direction of the accommodation cavity; a third side wall and a fourth side wall enclosing the second chamber; a speaker unit including a connection part located in the first chamber and a sounding component connecting to the connection part; wherein two ends of the connection part are respectively connected with the first side wall and the second side wall, and at least part of the sounding component is located in the second chamber; the first side wall and the third side wall are connected; the second side wall and the fourth side wall are connected; a distance between the first side wall and the second side wall is smaller than a distance between the third side wall and the fourth side wall, the housing body includes a front housing and a rear housing oppositely arranged along the height direction of the accommodation cavity; the front housing and the rear housing are connected for enclosing the accommodation cavity; the first chamber is arranged in the rear housing, and the second chamber is arranged in the front housing, the sounding component includes a magnetic circuit system, a vibration system, a basin frame and a cover, the basin frame is connected with the front housing, along the height direction of the accommodation cavity, the connection part is set opposite to the cover; the connection part and the cover are respectively covered on both sides of the basin frame, and are enclosed with the basin frame to form a containment space; both the magnetic circuit system and the vibration system are located in the containment space. ### Claim 2 (depends on 1) The speaker as described in claim 1, wherein the front housing includes a first through hole; the second chamber is connected with the outside through the first through hole; the cover is provided with a panel; the panel is provided with a sound exit hole; the panel protrudes from the first through hole. ### Claim 3 (depends on 1) The speaker as described in claim 1, wherein the connection part includes a plurality of spaced positioning gaps; the basin frame is provided with a plurality of spaced positioning blocks; the positioning block is set corresponding to the positioning gap; the positioning block can abut against two adjacent side surfaces of the positioning gap. ### Claim 4 (depends on 1) The speaker as described in claim 1, wherein the magnetic circuit system includes a magnetic conductive plate, a first magnet and at least two second magnets; both the first magnet and the second magnet are connected to the connection part; along the height direction of the accommodation cavity, the magnetic conductive plate is located below the first magnet and the second magnet; along the height direction perpendicular to the accommodation cavity, the two second magnets are disposed on opposite sides of the first magnet, respectively; a magnetic gap is formed between the first magnet and the second magnet; and wherein the vibration system includes a voice coil, a bracket, at least two electric conductive plates and at least two vibration diaphragms; the voice coil is located within the magnetic gap; the two electric conductive plates are located on opposite sides of the voice coil; one end of the electric conductive plate is connected to the basin frame, and the other end is connected to the bracket; the vibration diaphragm is connected to the electric conductive plate; the voice coil is connected to the bracket and electrically connected to the electric conductive plate. ### Claim 5 (depends on 4) The speaker as described in claim 4, wherein the vibration system also includes a dome, along the height direction of the accommodation cavity, the dome is disposed opposite to the voice coil, the dome is connected to the bracket. ### Claim 6 (depends on 4) The speaker as described in claim 4, wherein the magnetic conductive plate includes a first magnetic conduction plate and a second magnetic conduction plate, and the first magnetic conduction plate is connected to the first magnet; the first magnetic conduction plate is sheathed in the voice coil; the second magnetic conduction plate is connected to the second magnet; the second magnetic conduction plate surrounds the voice coil. ### Claim 7 (depends on 1) The speaker as described in claim 1, further including a box located in the first chamber and connected with the rear housing; wherein the box is used for placing sound-absorbing particles. ### Claim 8 (depends on 7) The speaker as described in claim 7, wherein one side of the box includes an opening, and the rear housing includes a second through hole; the box is connected with the outside world through the second through hole. ### Claim 9 (depends on 7) The speaker as described in claim 7 further including a sealing plug for blocking the second through hole.