Patents by Inventor Yuanwei Su

Yuanwei Su has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250223393
    Abstract: Rubber diaphragm, sound device and application thereof are provided, rubber diaphragm contains distortion improving agent with mass percentage of 0.2-60%; distortion improving agent is block polymer, and end group or block component of distortion improving agent includes special chemical crosslinking point with mass fraction of 0.02-25%; number average molecular weight of block of distortion improving agent is 300-100000; and distortion improving agent or main structure thereof is accurately prepared through living polymerization. Rubber diaphragm contains distortion improving agent, and structure and content of special chemical crosslinking point are accurately controllable, so that position, height and width of damping peak of rubber diaphragm are accurately controllable, and damping characteristics of rubber diaphragm are accurately controllable.
    Type: Application
    Filed: July 11, 2024
    Publication date: July 10, 2025
    Inventors: Yuanwei Su, Hongyuan Wang, Hezhi Wang, Chao Wang
  • Publication number: 20250227417
    Abstract: Rubber diaphragm, sound device and application thereof are provided; rubber diaphragm includes distortion improving agent with mass percentage of 0.5-50%; distortion improving agent is random linear polymer with more than two monomer components randomly arranged on main chain, and distortion performance is synergistically regulated by monomer components; end group and/or side group and side chain of distortion improving agent includes special chemical reaction crosslinking points with mass percentage of 0.01-20, and number average molecular weight of distortion improving agent is 500-1200000; and distortion improving agent or main chain thereof is prepared by one-step method. Rubber diaphragm includes distortion improving agent, which is random linear polymer that components are randomly arranged on main chain.
    Type: Application
    Filed: July 12, 2024
    Publication date: July 10, 2025
    Inventors: Yuanwei Su, Hongyuan Wang, Hezhi Wang, Chao Wang
  • Publication number: 20250193606
    Abstract: A rubber voice diaphragm including distortion improving agent with mass percentage of 0.3% to 60%. The distortion improving agent is macromolecule polymer with hyperbranched structure, and has specific chemical crosslinking points with mass percentage of 0.01% to 15%. Branches of the macromolecule polymer with hyperbranched structure are long or short chain structures prepared by active polymerization. Each distortion improving agent molecule includes at least three long or short chain structures, and number-average molecular weight of the long chain structure or the short chain structure is 200 to 50000. The specific chemical crosslinking points are distributed at the outermost end of the hyperbranched structure, and the adjacent specific chemical crosslinking points are separated by at least six carbon atoms.
    Type: Application
    Filed: May 21, 2024
    Publication date: June 12, 2025
    Inventors: Yuanwei Su, Hongyuan Wang, Hezhi Wang, Chao Wang
  • Publication number: 20250188281
    Abstract: A rubber voice diaphragm including a distortion improving agent with a mass percentage of 1% to 40%. The distortion improving agent is macromolecule polymer with a —Si—O— structure in a main chain, and includes side group and/or side chain. A number-average molecular weight of the side chain of the distortion improving agent is 60 to 20000. An end group and the side group of the distortion improving agent each include at least one of methyl group, ethyl group, propyl group, butyl group, phenyl group, naphthyl group, hydroxyl group, amino group, ester group, and amide group. At least one of the end group, the side group, and the side chain of the distortion improving agent has specific chemical crosslinking points with mass percentage of 0.03% to 30%. The distortion improving agent can significantly improve distortion performance and demolding performance of the rubber voice diaphragm without sacrificing physical performance advantages.
    Type: Application
    Filed: May 21, 2024
    Publication date: June 12, 2025
    Inventors: Yuanwei Su, Hongyuan Wang, Hezhi Wang, Chao Wang
  • Publication number: 20250109262
    Abstract: A rubber voice diaphragm is composed of main rubber, distortion improving agent, vulcanizing agent, accelerant, reinforcing filler, and other processing aids. The distortion improving agent is a substance with number-average molecular weight ranging from 1000 to 1000000, and structure of distortion improving agent has special chemical crosslinking points that participate in rubber vulcanization reaction. The special chemical crosslinking points are present in amount of 0.01% to 30% based on mass of distortion improving agent. The distortion improving agent is added in amount of 0.1% to 100% based on mass of main rubber. Frequency bands for improving distortion of distortion improving agent range from 0.1 HZ to 20000 Hz. In the rubber voice diaphragm provided in the present disclosure, a special distortion improving agent is selected, which solves the problems of molecular migration, poor reliability, a high modulus change rate, and poor rubber mechanical properties existing in traditional modified method.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 3, 2025
    Inventors: Yuanwei Su, Hongyuan Wang, Hezhi Wang, Chao Wang
  • Publication number: 20240284097
    Abstract: The present disclosure provides a thermally-conductive and sound-absorbing composite material and a preparation method thereof and a speaker. The thermally-conductive and sound-absorbing composite material includes the following components by mass percent: 10-80% of an activated carbon felt, 5-75% of zeolite particles, 1-80% of graphene particles and 5-40% of an adhesive, where the activated carbon felt serves as a skeleton; the graphene particles are bonded to an activated carbon fiber surface of the activated carbon felt through the adhesive; and the zeolite particles are bonded to surfaces of the graphene particles and the activated carbon fiber surface of the activated carbon felt through the adhesive. The thermally-conductive and sound-absorbing composite material provided by the present disclosure has excellent heat conductivity, excellent sound absorption performance, and a desirable mechanical strength.
    Type: Application
    Filed: May 26, 2023
    Publication date: August 22, 2024
    Inventors: Yuanwei Su, Hezhi Wang, Changliang Wang
  • Patent number: 11837210
    Abstract: A porous composite sound-absorbing material and a method for preparing the same are provided. The porous composite sound-absorbing material includes activated carbon cotton felt, zeolite particles, and an adhesive. The activated carbon cotton felt can bond the zeolite particles to fiber surfaces thereof by means of the adhesive, so that the zeolite particles are evenly dispersed and fixed and achieve optimal sound absorption performance. Meanwhile, a large number of micro-pore structures on surfaces thereof can act synergistically with the zeolite particles, so that the porous composite sound-absorbing material has significantly better sound absorption performance than the two and has extremely high cost performance. During the preparation process, the activated carbon cotton felt after treatments, is successfully compounded with the zeolite particles with more excellent sound absorption performance, so that the sound absorption performance is significantly improved and the cost performance is extremely high.
    Type: Grant
    Filed: January 10, 2023
    Date of Patent: December 5, 2023
    Assignee: AAC Technologies (Nanjing) Co., Ltd.
    Inventors: Yuanwei Su, Hezhi Wang, Changliang Wang