# US 12,601,881 B2 · Optical fiber connector with improved fixing plate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,601,881 B2 - Document ID: US12601881B2 - Status: Granted - Kind: B2 - Application number: 18/114,606 - Filed: 2023-02-27 - Published: 2024-08-01 - Granted: 2026-04-14 - Earliest claimed: 2023-01-31 - Assignees: Dongguan Luxshare Technologies Co., Ltd - Applicants: Dongguan Luxshare Technologies Co., Ltd - Inventors: Xiaoping Wu; Rongzhe Guo; Xiaogang Liu - Web page: https://patentgrep.com/patent/US12601881B2 ## CPC - G02B 6/38: having fibre to fibre mating means - G02B 6/3893: {Push-pull type, e.g. snap-in, push-on} - G02B 6/3825: {with an intermediate part, e.g. adapter, receptacle, linking two plugs} - G02B 6/3885: {Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type (optical ribbon cable G02B6/4403, G02B6/448)} - G02B 6/3897: {Connectors fixed to housings, casing, frames or circuit boards (G02B6/44528 takes precedence)} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract An optical fiber connector includes an insulating body, a number of optical fibers and a fixing plate. The insulating body includes a first end surface. The number of optical fibers are mounted to the insulating body. Each optical fiber includes a first extension portion protruding beyond the first end surface. The fixing plate is fixed to the insulating body. The fixing plate includes a mating surface, a mounting surface and a number of through holes extending through the mounting surface and the mating surface. The first extension portion is inserted into a corresponding through hole from the mounting surface. The first extension portion is exposed on the mating surface. The fixing plate of the present disclosure is configured to be made of a material whose precision is easier to guarantee, thereby improving the precision of the optical fiber connector. ## Claims ### Claim 1 An optical fiber connector, comprising: an insulating body including a first end portion, the first end portion including a first end surface; a plurality of optical fibers mounted to the insulating body, each optical fiber including a first extension portion protruding beyond the first end surface; and a fixing plate fixed to the first end portion of the insulating body, the fixing plate and the insulating body being made of different materials, the fixing plate including a mating surface, a mounting surface opposite to the mating surface, and a plurality of through holes extending through the mounting surface and the mating surface; the first extension portion being inserted into a corresponding through hole from the mounting surface; the first extension portion being exposed on the mating surface; wherein each through hole comprises a trumpet hole, the trumpet hole includes a first orifice and a second orifice opposite to the first orifice; and wherein the second orifice extends through the mounting surface, and a size of the second orifice is larger than a size of the first orifice. ### Claim 2 (depends on 1) The optical fiber connector according to claim 1, wherein the fixing plate is a ceramic fixing plate. ### Claim 3 (depends on 1) The optical fiber connector according to claim 1, wherein the fixing plate defines at least one hole extending through the mounting surface and the mating surface; and wherein the optical fiber connector includes at least one thermal riveting post inserted in the at least one hole so as to fix the fixing plate to the first end portion of the insulating body. ### Claim 4 (depends on 3) The optical fiber connector according to claim 3, wherein the plurality of through holes are arranged in a row along a first direction; wherein the at least one hole includes a first hole and a second hole; the first hole and the second hole are located on two sides of the plurality of through holes along a second direction; the second direction is perpendicular to the first direction; and wherein the at least one thermal riveting post includes a first thermal riveting post received in the first hole and a thermal riveting post received in the second hole. ### Claim 5 (depends on 4) The optical fiber connector according to claim 4, wherein the first hole and the second hole are disposed in a staggered manner along the second direction. ### Claim 6 (depends on 1) The optical fiber connector according to claim 1, wherein the insulating body is injection-molded on two sides of the fixing plate, so as to fix the fixing plate to the first end portion of the insulating body. ### Claim 7 (depends on 1) The optical fiber connector according to claim 1, further comprising a guiding and positioning pin; wherein the guiding and positioning pin passes through the insulating body and the fixing plate, and protrudes beyond the mating surface. ### Claim 8 (depends on 7) The optical fiber connector according to claim 7, wherein the guiding and positioning pin comprises a main body portion inserted in the insulating body and the fixing plate, a guiding and positioning portion extending from one end of the main body portion and protruding beyond the fixing plate, and an installation portion extending from another end of the main body portion; the installation portion defines a locking slit; and wherein the optical fiber connector further includes a fixing shell arranged opposite to the fixing plate; the fixing shell includes a locking wall locked in the locking slit. ### Claim 9 (depends on 8) The optical fiber connector according to claim 8, wherein the fixing shell defines a receiving space, the optical fiber connector further includes an installation block received in the receiving space and fixed to the fixing shell, the installation block defines a slot through which the plurality of optical fibers pass. ### Claim 10 An optical fiber connector, comprising: an insulating body including a first end surface and a plurality of receiving holes extending through the first end surface; a plurality of optical fibers assembled to the insulating body, each optical fiber including a first extension portion protruding beyond the first end surface; and a ceramic fixing plate fixed to the insulating body, the fixing plate and the insulating body being made of different materials, the fixing plate including a mating surface, a mounting surface opposite to the mating surface, and a plurality of through holes extending through the mounting surface and the mating surface; the plurality of through holes and the plurality of receiving holes being aligned with each other; the first extension portion being inserted into a corresponding receiving hole and a corresponding through hole; the first extension portion being exposed on the mating surface; wherein the optical fiber connector further comprises a guiding and positioning pin; the guiding and positioning pin passes through the insulating body and the fixing plate; wherein the guiding and positioning pin comprises a main body portion inserted in the insulating body and the fixing plate, a guiding and positioning portion extending from one end of the main body portion and protruding beyond the fixing plate, and an installation portion extending from another end of the main body portion; the installation portion defines a locking slit; and wherein the optical fiber connector further includes a fixing shell arranged opposite to the fixing plate; the fixing shell includes a locking wall locked in the locking slit. ### Claim 11 (depends on 10) The optical fiber connector according to claim 10, wherein the fixing plate defines at least one hole extending through the mounting surface and the mating surface; and wherein the optical fiber connector includes at least one thermal riveting post inserted in the at least one hole so as to fix the fixing plate to the insulating body. ### Claim 12 (depends on 11) The optical fiber connector according to claim 11, wherein the plurality of through holes are arranged in a row along a first direction; wherein the at least one hole includes a first hole and a second hole; the first hole and the second hole are located on two sides of the plurality of through holes along a second direction; the second direction is perpendicular to the first direction; and wherein the at least one thermal riveting post includes a first thermal riveting post received in the first hole and a thermal riveting post received in the second hole. ### Claim 13 (depends on 12) The optical fiber connector according to claim 12, wherein the first hole and the second hole are disposed in a staggered manner along the second direction. ### Claim 14 (depends on 10) The optical fiber connector according to claim 10, wherein each through hole comprises a trumpet hole, the trumpet hole includes a first orifice and a second orifice opposite to the first orifice; and wherein the second orifice extends through the mounting surface, and a size of the second orifice is larger than a size of the first orifice. ### Claim 15 (depends on 10) The optical fiber connector according to claim 10, wherein the insulating body is injection-molded on two sides of the fixing plate, so as to fix the fixing plate to the insulating body. ### Claim 16 (depends on 10) The optical fiber connector according to claim 10, wherein the guiding and positioning pin protrudes beyond the mating surface. ### Claim 17 (depends on 16) The optical fiber connector according to claim 16, wherein the fixing shell defines a receiving space, the optical fiber connector further includes an installation block received in the receiving space and fixed to the fixing shell, the installation block defines a slot through which the plurality of optical fibers pass. ### Claim 18 An optical fiber connector, comprising: an insulating body including a first end surface, a second end surface opposite to the first end surface, a plurality of receiving holes extending through the first end surface, and a receiving chamber extending through the second end surface; a plurality of optical fibers assembled to the insulating body, each optical fiber including a first extension portion protruding beyond the first end surface; a ceramic fixing plate fixed to the insulating body, the fixing plate and the insulating body being made of different materials, the fixing plate including a mating surface, a mounting surface opposite to the mating surface, and a plurality of through holes extending through the mounting surface and the mating surface; the plurality of through holes and the plurality of receiving holes being aligned with each other; the first extension portion being inserted into a corresponding receiving hole and a corresponding through hole; the first extension portion being exposed on the mating surface; a fixing shell defining a receiving space; an installation block comprising a first fixing portion inserted in the receiving chamber of the insulating body, a second fixing portion received in the receiving space, and a slot through which the plurality of optical fibers pass; and a pair of guiding and positioning pins passing through the insulating body and the fixing plate, and protruding beyond the mating surface; the pair of guiding and positioning pins are in lock with the fixing shell so as to fix the fixing shell to the insulating body. ### Claim 19 (depends on 18) The optical fiber connector according to claim 18, wherein each through hole comprises a trumpet hole, the trumpet hole includes a first orifice and a second orifice opposite to the first orifice; and wherein the second orifice extends through the mounting surface, and a size of the second orifice is larger than a size of the first orifice. ### Claim 20 (depends on 18) The optical fiber connector according to claim 18, wherein the fixing plate defines at least one hole extending through the mounting surface and the mating surface; and wherein the optical fiber connector comprises at least one thermal riveting post inserted in the at least one hole so as to fix the fixing plate to the insulating body.