Patents by Inventor Li-Li LIANG

Li-Li LIANG 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).

  • Patent number: 9954326
    Abstract: A cable end connector and the method of making the same are disclosed. The connector includes a first contact module, a second contact module, a central grounding unit, a grounding means, and a shielding shell electrically connecting with the grounding means. The first contact module includes first contacts and a first insulator retaining the first contacts. The first insulator has a first tongue section and a first assembling section. The second contact module includes second contacts and a second insulator retaining the second contacts. The second insulator has a second tongue section and a second assembling section. The shielding shell has a front shell and a rear shell partially overlapped on the front shell. The front shell substantially encloses the first and the second tongue sections of the first and the second contact modules, the central grounding unit and the grounding means. The rear shell covers the first and the second assembling sections of the first and the second contact modules.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: April 24, 2018
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Ya-Juan Gou, Zhi-Qiang Rong, Li-Li Liang, Mao-Jung Huang, Wang-I Yu
  • Publication number: 20180062292
    Abstract: An electrical connector includes an insulative housing and a plurality of contacts. The insulative housing has a main portion defining a top wall, a bottom wall and a mating cavity, the bottom wall has a first segment, a second segment spaced apart from the first segment and a protrusion extending away from the mating cavity, the protrusion is located between the first segment and the second segment. Each contact has a retention portion, a contacting arm and a soldering tail, the contacts comprises a group of first contacts, a group of second contacts, a group of third contacts and a group of fourth contacts. A distance between the retention portion and the soldering tail of each fourth contact along a height direction is larger than a distance between the retention portion and the soldering tail of each second contact.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I YU, Yung-Chih HUNG, Li-Li LIANG, Yong-Gang ZHANG, Feng ZHENG
  • Patent number: 9905948
    Abstract: An electrical connector includes an insulative housing and a plurality of contacts. The insulative housing has a main portion defining a top wall, a bottom wall and a mating cavity, the bottom wall has a first segment, a second segment spaced apart from the first segment and a protrusion extending away from the mating cavity, the protrusion is located between the first segment and the second segment. Each contact has a retention portion, a contacting arm and a soldering tail, the contacts comprises a group of first contacts, a group of second contacts, a group of third contacts and a group of fourth contacts. A distance between the retention portion and the soldering tail of each fourth contact along a height direction is larger than a distance between the retention portion and the soldering tail of each second contact.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: February 27, 2018
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I Yu, Yung-Chih Hung, Li-Li Liang, Yong-Gang Zhang, Feng Zheng
  • Patent number: 9893449
    Abstract: An electrical connector includes an insulative housing and two contact modules. The insulative housing has a bottom mounting portion having a cavity opening downwardly and a mating portion, the mating portion has a central mating space and a pair of side walls on both sides of the mating space, and a plurality of contact receiving passageways defined on each side wall. Each contact module has an insulator received in the cavity and a plurality of contacts insert-molded in the insulator, each contact defines a contacting arm and a soldering portion. The insulative housing defines a pair of locating portions extending downwards from two sides of the mounting portion, the distance between the pair of locating portions is smaller than an internal diameter of the cavity, a pair of demising slots are formed on an interior side of each locating portion for the contact modules passing through.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: February 13, 2018
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Li-Li Liang, Ya-Juan Gou, Zhi-Qiang Rong, Mao-Jung Huang, Wang-I Yu
  • Patent number: 9865951
    Abstract: An electrical connector includes an insulative housing, a plurality of contacts retained in the insulative housing, a fastener and a first sealing ring. The insulative housing has a rear section extending backwardly. The rear section has a rear space and a first peripheral wall around the rear space. Each contact has a connecting leg extending into the rear space. The fastener has a mating section to engage with the rear section and a board receiving chamber extending therethrough along a front to back direction. The fastener has a fixed position on the insulative housing, and as moving the fastener to the fixed position, the connecting legs are pressed into the board receiving chamber for electrically connecting with the flexible printed circuit board, and the first sealing ring is sealed around the junction of the contacts and the flexible printed circuit board.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: January 9, 2018
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Li-Li Liang, Yong-Gang Zhang, Yu-Hui Zhang
  • Publication number: 20170352970
    Abstract: An electrical connector includes an insulative housing and two contact modules. The insulative housing has a bottom mounting portion having a cavity opening downwardly and a mating portion, the mating portion has a central mating space and a pair of side walls on both sides of the mating space, and a plurality of contact receiving passageways defined on each side wall. Each contact module has an insulator received in the cavity and a plurality of contacts insert-molded in the insulator, each contact defines a contacting arm and a soldering portion. The insulative housing defines a pair of locating portions extending downwards from two sides of the mounting portion, the distance between the pair of locating portions is smaller than an internal diameter of the cavity, a pair of demising slots are formed on an interior side of each locating portion for the contact modules passing through.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 7, 2017
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Li-Li LIANG, Ya-Juan GOU, Zhi-Qiang RONG, Mao-Jung HUANG, Wang-I YU
  • Publication number: 20170324178
    Abstract: An electrical connector includes an insulative housing, a plurality of contacts retained in the insulative housing, a fastener and a first sealing ring. The insulative housing has a rear section extending backwardly. The rear section has a rear space and a first peripheral wall around the rear space. Each contact has a connecting leg extending into the rear space. The fastener has a mating section to engage with the rear section and a board receiving chamber extending therethrough along a front to back direction. The fastener has a fixed position on the insulative housing, and as moving the fastener to the fixed position, the connecting legs are pressed into the board receiving chamber for electrically connecting with the flexible printed circuit board, and the first sealing ring is sealed around the junction of the contacts and the flexible printed circuit board.
    Type: Application
    Filed: July 10, 2017
    Publication date: November 9, 2017
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Li-Li LIANG, Yong-Gang ZHANG, Yu-Hui ZHANG
  • Patent number: 9774115
    Abstract: An electrical connector includes an insulative housing and a plurality of contacts. The insulative housing has a main portion defining a top wall, a bottom wall and a mating cavity formed between the top wall and the bottom wall, the bottom wall has a first segment, a second segment spaced apart from the first segment and a protrusion extending away from the mating cavity, the protrusion is located between the first segment and the second segment. Each contact has a retention portion, a contacting arm, an extension portion and a soldering tail, the contacts comprises a group of first contacts, a group of second contacts, a group of third contacts and a group of fourth contacts. A first insulator is molded on the extension portions of the first contacts, the first insulator defines a first positioning portion engaging with the main portion.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: September 26, 2017
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Li-Li Liang, Yong-Gang Zhang, Feng Zheng
  • Patent number: 9735486
    Abstract: An electrical connector includes an insulative housing, a plurality of contacts retained in the insulative housing and a fastener. The insulative housing has a rear surface. Each contact has a connecting leg extending beyond the rear surface. The connecting legs are arranged in at least a row, and each connecting leg has a connecting portion and a resisting portion. The fastener has at least a contact receiving chamber, a flexible circuit board receiving chamber communicating with the contact receiving chamber and a press section. The contact receiving chamber is arranged between from the flexible circuit board receiving chamber and the press section. Wherein the fastener has a fixed position on the insulative housing, and as moving the fastener to the fixed position, the press section presses the resisting portion to drive the connecting portion projecting into the flexible circuit board receiving chamber.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: August 15, 2017
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I Yu, Li-Li Liang, Yong-Gang Zhang, Yung-Chih Hung, Yu-Hui Zhang, Hai-Feng Ren
  • Publication number: 20170149153
    Abstract: A USB cable end connector and the method of making the same are disclosed. The cable end connector includes a first contact module, a second contact module, a central grounding unit sandwiched between the two contact modules, a shielding shell enclosing the first and the second contact modules; and a grounding means attached to the first and the second contact modules along a height direction of the connector. The grounding means includes an upper grounding pad and a lower grounding pad. The upper grounding pad and the lower grounding pad are assembled to a first and a second insulators of the contact modules along a height direction, respectively. The upper grounding pad is sandwiched between the first contact module and the shielding shell. The lower grounding pad is sandwiched between the second contact module and the shielding shell.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 25, 2017
    Applicant: ALLTOP ELECTRONICS (SUZH OU) LTD.
    Inventors: Ya-Juan GOU, Zhi-Qiang RONG, Li-li LIANG, Mao-Jung HUANG, Wang-I YU
  • Publication number: 20170149183
    Abstract: A cable end connector and the method of making the same are disclosed. The connector includes a first contact module, a second contact module, a central grounding unit, a grounding means, and a shielding shell electrically connecting with the grounding means. The first contact module includes first contacts and a first insulator retaining the first contacts. The first insulator has a first tongue section and a first assembling section. The second contact module includes second contacts and a second insulator retaining the second contacts. The second insulator has a second tongue section and a second assembling section. The shielding shell has a front shell and a rear shell partially overlapped on the front shell. The front shell substantially encloses the first and the second tongue sections of the first and the second contact modules, the central grounding unit and the grounding means. The rear shell covers the first and the second assembling sections of the first and the second contact modules.
    Type: Application
    Filed: November 17, 2016
    Publication date: May 25, 2017
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Ya-Juan GOU, Zhi-Qiang RONG, Li-Li LIANG, Mao-Jung HUANG, Wang-I YU
  • Publication number: 20160308314
    Abstract: An electrical connector includes an insulative housing, a plurality of contacts and a circuit board. The insulative housing has a body portion and a mating portion forwardly extending from the body portion. The contacts include a plurality of ground contacts and a plurality of pairs of differential signal contacts located between the ground contacts. Each contact has a retaining portion retained in the insulative housing, a contact portion extending to the mating portion from one end of the retaining portion, and a tail portion extending to a rear side of the body portion from another end of the retaining portion. The circuit board is arranged at a rear side of the body portion, and has a plurality of ground connections and a conductive path connecting the ground connections together. The ground connections connect with the tail portions of the ground contacts.
    Type: Application
    Filed: July 24, 2015
    Publication date: October 20, 2016
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I YU, Yi-Chang CHEN, Feng ZHENG, Yong-Gang ZHANG, Li-Li LIANG
  • Patent number: 9306337
    Abstract: An electrical connector includes an insulative housing, a number of contacts retained in the insulative housing, a metallic outer shell enclosing the insulative housing, and a metallic inner shell positioned between the metallic outer shell and the insulative housing. The insulative housing includes a base and a tongue portion protruding from the base. The contacts include a number of flat contacting portions exposed on a top surface and a bottom surface of the tongue portion, respectively. The metallic inner shell includes at least two pieces which are separately made and fixed to the insulative housing. The metallic inner shell and the metallic outer shell are in mechanical contact with each other in order to achieve a relative larger grounding area.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: April 5, 2016
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I Yu, Li-Li Liang, Yong-Gang Zhang, Mao-Jung Huang, Kun Liu
  • Publication number: 20160064869
    Abstract: An electrical connector includes an insulative housing, a number of contacts retained in the insulative housing, a metallic grounding plate and a metallic inner shell. The insulative housing includes a base and a tongue portion protruding forwardly from the base. The contacts are divided into a plurality of upper contacts and a plurality of lower contacts. The metallic grounding plate is positioned between the upper contacts and the lower contacts. The metallic inner shell includes a top shell and a bottom shell separately made from each other. The metallic grounding plate is positioned between the top shell and the bottom shell. The metallic inner shell and the metallic grounding plate are in contact with each other in order to realize a relative larger grounding area.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 3, 2016
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I YU, Li-Li LIANG, Yong-Gang ZHANG, Mao-Jung HUANG, Kun LIU
  • Publication number: 20160064870
    Abstract: An electrical connector includes an insulative housing, a number of contacts retained in the insulative housing, a metallic outer shell enclosing the insulative housing, and a metallic inner shell positioned between the metallic outer shell and the insulative housing. The insulative housing includes a base and a tongue portion protruding from the base. The contacts include a number of flat contacting portions exposed on a top surface and a bottom surface of the tongue portion, respectively. The metallic inner shell includes at least two pieces which are separately made and fixed to the insulative housing. The metallic inner shell and the metallic outer shell are in mechanical contact with each other in order to achieve a relative larger grounding area.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 3, 2016
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I YU, Li-Li LIANG, Yong-Gang ZHANG, Mao-Jung HUANG, Kun LIU
  • Patent number: 9276365
    Abstract: An electrical connector includes an upper contact module, a lower contact module, an outer insulative housing inject-molded with the upper contact module and the lower contact module, a shielding mechanism at least partly fixed in the outer insulative housing and a metallic outer shell enclosing the outer insulative housing. The upper contact module includes a number of upper contacts and an upper housing inject-molded with the upper contacts. The lower contact module includes a number of lower contacts and a lower housing inject-molded with the lower contacts. The shielding mechanism and the metallic outer shell are in mechanical contact with each other for achieving a relative larger grounding area.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: March 1, 2016
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I Yu, Mao-Jung Huang, Li-Li Liang, Yong-Gang Zhang, Kun Liu
  • Publication number: 20150364888
    Abstract: A method for making an electrical connector include steps of: S1) providing a plurality of upper contacts and inject-molding an upper housing over the upper contacts so as to form an upper contact module; S2) providing a plurality of lower contacts and inject-molding a lower housing over the lower contacts so as to form a lower contact module; and S3) inject-molding an outer insulative housing over the upper contact module and the lower contact module.
    Type: Application
    Filed: December 3, 2014
    Publication date: December 17, 2015
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I YU, Mao-Jung HUANG, Li-Li LIANG, Yong-Gang ZHANG, Kun LIU
  • Publication number: 20150364883
    Abstract: An electrical connector includes an upper contact module, a lower contact module, an outer insulative housing inject-molded with the upper contact module and the lower contact module, a shielding mechanism at least partly fixed in the outer insulative housing and a metallic outer shell enclosing the outer insulative housing. The upper contact module includes a number of upper contacts and an upper housing inject-molded with the upper contacts. The lower contact module includes a number of lower contacts and a lower housing inject-molded with the lower contacts. The shielding mechanism and the metallic outer shell are in mechanical contact with each other for achieving a relative larger grounding area.
    Type: Application
    Filed: November 25, 2014
    Publication date: December 17, 2015
    Applicant: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I YU, Mao-Jung HUANG, Li-Li LIANG, Yong-Gang ZHANG, Kun LIU
  • Patent number: 9214766
    Abstract: An electrical connector includes an insulative housing, a number of contacts retained in the insulative housing, a metallic outer shell enclosing the insulative housing, and a metallic inner shell positioned between the metallic outer shell and the insulative housing. The insulative housing includes a base and a tongue portion protruding from the base. The contacts include a number of flat contacting portions exposed on a top surface and a bottom surface of the tongue portion, respectively. The tongue portion is located at a center of the metallic outer shell along a vertical direction. The metallic inner shell and the metallic outer shell are in mechanical contact with each other in order to achieve a relative larger grounding area.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: December 15, 2015
    Assignee: ALLTOP ELECTRONICS (SUZHOU) LTD.
    Inventors: Wang-I Yu, Li-Li Liang, Yong-Gang Zhang, Mao-Jung Huang, Kun Liu
  • Patent number: 8814585
    Abstract: An electrical connector mountable on a printed circuit board and adapted for mating with a complementary connector, includes an insulating housing and a plurality of contacts. The insulating housing defines a base section, an upper and a lower walls extending forwardly from the base section, and a receiving space defined between the upper and the lower walls. Each contact has a main portion, a contacting portion extending from the main portion and exposed to the receiving space, and a tail portion extending outside of the insulating housing. A positioning protrusion is formed on an inside face of the lower wall and extends into the receiving space, and defines a slanted guiding surface therealong opposing to the upper wall to guide an insertion or rejection of the complementary connector.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: August 26, 2014
    Assignee: Alltop Electronics (Suzhou) Ltd.
    Inventors: Wang-I Yu, Shuang-Feng Li, Li-Li Liang