Patents Assigned to AAC MICROTECH (CHANGZHOU) CO.,LTD.
  • Patent number: 11968514
    Abstract: The application relates to a vibration sounding device including: a housing body with a containment cavity and a sounding unit arranged in the containment cavity. The sounding unit includes a vibration system and a magnetic circuit system. The magnetic circuit system includes a main magnet and a secondary magnet assembly. The vibration sounding device also includes an elastic assembly, a weight assembly, and a drive coil. The second direction is perpendicular to the first direction. By virtue of the configuration, it is beneficial to simplify the forming process of the weight assembly, reduce the production cost, and also facilitate the replacement of the drive coil.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 23, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Bo Xiao, Chenliang Kong, Tong Zhang, Ronglin Linghu
  • Patent number: 11967874
    Abstract: The present disclosure discloses a linear motor including a housing with an accommodation space, a vibrator and a stator received in the accommodation space and an elastic support fixed on the vibrator and configured to suspend the vibrator in the accommodation space; the stator includes a coil and a copper ring both opposite to the vibrator; the copper ring and the coil are arranged on two opposite sides of the vibrator separately along a first direction perpendicular with a vibration direction of the vibrator. The copper ring serves as a damper providing electromagnetic resilience for the vibrator, effectively improve the automation and efficiency of the manufacture of the linear vibration motor.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: April 23, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Ziang Li, Zhiyong Cui, Jie Ma, Lubin Mao
  • Patent number: 11968513
    Abstract: The application discloses a vibration sounding device including a housing body with a containment cavity, a sounding unit placed in the containment cavity, a weight, a drive coil and a spring plate. The spring plate includes a first fixed section for fixed connection with the weight and a second fixed section for fixed connection with the housing body. The first fixed section and the second fixed section are fixed by laser spot welding. Compared with the prior art, the first fixed section and the second fixed section are fixed by laser spot welding, which can improve the bonding strength between the first fixed section and the second fixed section, and ensures the strength of the spring plate when the vibration sounding device is working.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 23, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Bo Xiao, Chenliang Kong, Tong Zhang, Ronglin Linghu
  • Patent number: 11968515
    Abstract: The present invention provides a multifunctional sounding device including a housing, a first vibration system, a second vibration system, a magnetic circuit system, an elastic component and a flexible circuit board. The elastic component includes a deformation part fixed to the second vibration system and an installation part extended from both ends of the deformation part and fixed to the housing. The second vibration system is suspended in the containment cavity through the elastic component. The flexible circuit board is connected with the elastic component, so that the vibration of the flexible circuit board is coupled with the vibration of the elastic component. Therefore, the damping of the elastic component is reduced, the force received by the elastic component during vibration is reduced, and the service life of the elastic component is extended.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: April 23, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Bo Xiao, Chenliang Kong, Tong Zhang, Ronglin Linghu
  • Patent number: 11956614
    Abstract: A speaker device is provided. The speaker device includes a frame, and a vibration unit, a magnetic circuit unit, and air-permeable isolation member. The magnetic circuit unit includes a yoke fixed to the frame. The yoke and the frame are spaced to form a leakage port to enable leaking from a side surface of the speaker device. The sound-producing inner cavity communicates with the leakage port. The air-permeable isolation member completely covers the leakage port. The leakage port communicates with the outside through the leakage hole. Compared with the related art, the speaker device of the present disclosure has a yoke leakage structure, which can realize self-sealing and is conducive to assembling.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: April 9, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Huhu Yang, Wei Wei, Zhaoyu Yin, Zhizhu Chen
  • Patent number: 11949307
    Abstract: The present disclosure discloses a linear motor having a housing with an accommodation space, a vibration unit and a driving unit received in the accommodation. The vibrator unit includes a weight with a receiving space and a magnet unit fixed on the weight and inside the receiving space. The driving unit includes an iron core received in the receiving space, two pole pieces respectively fixed on two opposite ends of the iron core along a vibration direction and a coil wound around the iron core. A groove is provided on the pole piece and faces the magnet unit along a first direction perpendicular with the vibration direction. The distance between the pole piece and the magnet unit increases, effectively decreasing the magnetic attraction force between the pole piece and magnet unit and avoiding the non-linear vibration of the linear vibration motor.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Ziang Li, Lubin Mao, Zhiyong Cui, Jie Ma
  • Patent number: 11949308
    Abstract: The present disclosure provides a vibration motor, including a housing with an accommodation space; a vibration part and a stator contained in the accommodation space; an elastic support suspending and supporting the vibration part in the accommodation space for providing elastic restoring force to the vibration part. The elastic support includes a first fixed part fixed on the vibration part, an elastic arm with one end thereof connected to the first fixed part, and a second fixed part formed by bending another end of the elastic arm and fixed on the housing. An extension direction of the first fixed part is perpendicular to a vibration direction of the vibration part, and an extension direction of the second fixed part is parallel to the vibration direction. Thus, the service life of the elastic support is improved.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Yan Shao, Xiaorong Zhou, Fanghua Ling
  • Patent number: 11950045
    Abstract: The present application provides a sounding device. The sounding device includes a front surface with a sound outlet hole; a back surface; a sounding component and an outer casing. The outer casing is covered outside the sounding component. A cavity is formed between the outer casing and the end of the sounding component close to the back side. A sound guiding channel is arranged in the outer casing. One end of the sound guiding channel is communicated with the sound outlet hole, and the other end of the sound guiding channel is communicated with the cavity. The sounding device of the present application provides a smooth transmission channel for the sound from the back side by arranging the sound guiding channel in the outer casing, thereby strengthening the frontal sound of the sounding device and greatly improving the loudness of the sounding device.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Tao Shao, Xudong Yan, Xiaojiang Gu
  • Patent number: 11949309
    Abstract: The present disclosure provides a linear vibration motor, including a casing with an accommodation space, a vibration unit accommodated in the accommodation space, a vibration unit suspended in the accommodation space and a coil fixed on the casing and driving the vibration unit to vibrate. The casing includes a copper ring arranged around the vibration unit. In the linear vibration motor provided by the utility model, the copper ring is arranged around the vibration unit to provide a damping function for the linear vibration motor. Compared with the foam damping member in the related art, the linear vibration motor provided by the present disclosure may be arranged by an automatic device during the production and manufacture of the linear vibration motor, thereby greatly improving the production efficiency, and improving the automation degree.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Ziang Li, Zhiyong Cui, Yan Shao
  • Patent number: 11950071
    Abstract: The present invention provides an acoustic device including a frame, a vibration system and a magnetic system. The vibration system includes a diaphragm, a voice coil assembly, and a support assembly. The support assembly includes a flexible circuit board and a support membrane. The flexible circuit board includes a first fixing end secured to the frame, a second fixing end secured to the voice coil assembly, a connecting portion, and a soldering pad. The voice coil assembly includes a first voice coil and a second voice coil. The first voice coil includes a first leading wire. The first leading wire has a first extension part extending from a surface of the first voice coil, a second extension part bending and extending from the first extension part along an outer surface of the second voice coil, and a soldering part welding to the soldering pad.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Weimin Chen, Kejia Liu, Yuheng Jiang
  • Patent number: 11950048
    Abstract: The present invention discloses a sound absorption material including an organic frame material; a binder; a thickener; and a plurality of sound absorption grains attached to the organic frame material via the binder, having a grain size in a range of 10-100 ?m. The stability and the sound absorption performance of the sound absorption material have been effectively improved.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Zhongyang Wang, Hezhi Wang, Jie Zhang
  • Patent number: 11950073
    Abstract: The present invention provides a coaxial speaker, which includes a frame, a vibration system and a magnetic circuit system. The magnetic circuit system includes a magnetic conduction assembly and a magnet assembly. The magnetic conduction assembly includes a first magnetic conduction plate, an inner side wall and an outer side wall, and a second magnetic conduction plate fixed on the side of the inner side wall. The magnet assembly includes a first magnet that forms a first magnetic gap and a second magnet that forms a second magnetic gap, a first vibration assembly and a second vibration assembly. The present invention is provided with high internal space integration, high magnetic circuit utilization, and meets the requirements of the full frequency domain.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventor: Tao Shao
  • Patent number: 11950076
    Abstract: A speaker includes: a housing including a ring-shaped frame, a front cover and a bottom shell; a vibration system and a magnetic circuit system, the vibration system including a diaphragm fixed on the frame, a voice coil support fixed on the diaphragm and a voice coil supported by the voice coil support, the magnetic circuit system including a first magnetic yoke fixed on the front cover and a magnet assembly fixed on the first magnetic yoke. A first opening is provided to penetrate a center portion of the diaphragm, and the diaphragm includes an inner edge enclosing the first opening and an outer edge fixed to the frame, the magnetic circuit system extends through the first opening, the housing further includes an extension portion extending from the front cover toward the diaphragm and surrounding the magnetic circuit system, and the inner edge of the diaphragm is fixed to the extension.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Lubin Mao, Dong Lu, Jie Ma, Ziang Li
  • Patent number: 11950075
    Abstract: The present disclosure discloses a sounding device including a frame, a magnetic circuit system with a magnetic part and a vibration system. The vibration system includes a diaphragm fixed to the frame, a voice coil driving the diaphragm to vibrate and arranged around the magnetic part, and a metal shrapnel with conductive function. One end of the metal shrapnel is fixed to the frame and electrically connected to an external circuit, and the other end of the metal shrapnel is fixed to the voice coil and electrically connected to the lead wire of the voice coil. The metal shrapnel restrains a movement of the voice coil in a direction perpendicular to a vibration direction of the diaphragm. Compared with the related art, the sounding device disclosed by the present disclosure can reduce the number of elements to simplify the product structure.
    Type: Grant
    Filed: December 31, 2021
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Pengfei Zhang, Wei Liu, Xudong Yan
  • Patent number: 11950077
    Abstract: A speaker includes a frame with a leakage hole, a magnetic circuit system and a vibration system received in the frame and a mesh covering the leakage hole. The vibration system comprises a diaphragm and a coil. The magnetic circuit system comprises a lower clamp and a magnet assembly stacked on the lower clamp. The mesh is integrally injection-molded with the frame, and comprises a central portion opposite to the leakage hole and a fixed portion located around the central portion and fixed with the frame. The fixed portion comprises an embedded portion embedded in the frame. The frame comprises a cover portion covering the embedded portion. The cover portion is provided with a recessed portion recessed from the surface of the cover portion away from the embedded portion toward the embedded portion until in contact with the embedded portion.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Hongjian Hu, Shuai Li
  • Patent number: 11950090
    Abstract: The application relates to a sound quality output method. The method includes: obtaining the current volume level input by the user; determine the audio signal gain difference between the current volume level and the baseline volume level according to the current volume level and the preset baseline volume level, determining an equal loudness curve difference between the current volume level and the baseline volume level according to the audio signal gain difference, and the current volume level and the baseline volume level, determining the audio quality response curve corresponding to the current volume level according to the equal loudness curve difference and the pre-stored audio quality response curve corresponding to the baseline volume level, determining the output signal parameters of multiple audio output channels according to the audio quality response curve corresponding to the current volume level. The application optimizes the sound quality effect and enhances acoustic experience.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Shuyuan Sun, Yiming Meng, Hao Yin
  • Patent number: 11950074
    Abstract: The present invention provides a speaker including: a frame, a vibration system and a magnetic circuit system. The vibration system includes a vibration diaphragm and a voice coil. The magnetic circuit system includes a magnetic part, and the voice coil is arranged around the magnetic part. The vibration system further includes an elastic plate with two branch elastic plates. The branch elastic plate includes a connection part, an extension part, an elastic arm and a fixed part. The surfaces of the connection part and the extension part facing the connection surface are recessed together to form a welding slot, and the lead wire is accommodated in the welding slot. The speaker provided by the present invention can not only effectively prevent the voice coil from swaying, but also reduce the number of parts to simplify the product structure.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Keyong Zhou, Yuanxiang Mao
  • Patent number: 11950046
    Abstract: The present invention provides a multifunctional sounding device including a housing, a first vibration system, a second vibration system, a magnetic circuit system, an elastic component and a flexible circuit board. The elastic component includes a deformation part fixed to the second vibration system and an installation part extended from both ends of the deformation part and fixed to the housing. The second vibration system is suspended in the containment cavity through the elastic component. The flexible circuit board is connected with the elastic component, so that the vibration of the flexible circuit board is coupled with the vibration of the elastic component. Therefore, the damping of the elastic component is reduced, the force received by the elastic component during vibration is reduced, and the service life of the elastic component is extended.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 2, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Bo Xiao, Chenliang Kong, Tong Zhang, Ronglin Linghu
  • Patent number: 11943596
    Abstract: The present invention provides an acoustic device including a frame, a vibration system and a magnetic circuit system. The vibration system includes a diaphragm, a voice coil, a voice coil holder connecting the diaphragm and the voice coil, and a support assembly connecting the frame and the voice coil holder. The voice coil holder comprises a first fixing portion extending toward a direction of the voice coil, a second fixing portion extending toward to the support assembly, and a first connecting portion connecting the first fixing portion and the second fixing portion. The first fixing portion is mounted to the voice coil, and the second fixing portion is mounted to the support assembly. The first connecting portion provides with a reinforcing rib protruding and extending from the first fixing portion.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: March 26, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventors: Weimin Chen, Kejia Liu
  • Patent number: 11930341
    Abstract: The present invention provides a coaxial speaker, including a frame, a magnetic circuit system, and coaxially arranged first sounding unit and second sounding unit. The magnetic circuit system includes a magnetic bowl and a magnet part. The magnet part includes a first magnet part and a second magnet part, and the first magnet part is arranged with a first channel. The second magnet part is arranged with a second channel. The support component encloses the third channel connected to the through hole of the first diaphragm, and the first channel, the second channel and the third channel are connected to form the sound channel of the second sounding unit. The sound from the second sounding unit is emitted from the through hole of the first diaphragm through the sound channel. The coaxial speaker of the present invention has a good treble effect.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: March 12, 2024
    Assignee: AAC Microtech (Changzhou) Co., Ltd.
    Inventor: Tao Shao