# US 2014/0154931 A1 · Electrical Connector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0154931 A1 - Document ID: US20140154931A1 - Status: Published application - Kind: A1 - Application number: 13/475,309 - Filed: 2012-05-18 - Published: 2014-06-05 - Earliest claimed: 2011-05-19 - Assignees: Tyco Electronics (Shanghai) Co., Ltd. - Inventors: Jianfeng Wu; Zhenyu Chen; Lihao Liu; Yuanchun Chen; Feirong Zhou - Web page: https://patentgrep.com/patent/US20140154931A1 ## CPC - H01R 13/4367: {Insertion of locking piece from the rear} - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract An electrical connector includes a housing, a first terminal, and a first lock. The housing includes a first receiving chamber and first recess positioned adjacent to the first receiving chamber. The first terminal is insertable into the first receiving chamber. The lock is securable to the housing and includes a horizontal base plate, a first pressing rod extending downward from the horizontal base plate and insertable into the first receiving chamber to press against the first terminal, and a first rotation prevention member extending downward from the horizontal base plate and insertable into the first recess to mate with the recess in a substantially gapless manner. ## Claims ### Claim 1 An electrical connector comprising: a housing having a first receiving chamber and first recess positioned adjacent to the first receiving chamber; a first terminal insertable into the first receiving chamber; and a lock securable to the housing and having: a horizontal base plate; a first pressing rod extending downward from the horizontal base plate and insertable into the first receiving chamber to urge the first terminal; and a first rotation prevention member extending downward from the horizontal base plate and insertable into the first recess to mate with the recess in a substantially gapless manner. ### Claim 2 (depends on 1) The electrical connector according to claim 1, wherein the lock further includes a first locking piece extending downward from the horizontal base plate and separated from the first pressing rod. ### Claim 3 (depends on 2) The electrical connector according to claim 2, wherein the housing further includes a first slot separated from the first receiving chamber. ### Claim 4 (depends on 3) The electrical connector according to claim 3, wherein the first locking piece snap fits into the first slot. ### Claim 5 (depends on 4) The electrical connector according to claim 4, wherein the first rotation prevention member is positioned between the first pressing rod and the first locking piece. ### Claim 6 (depends on 5) The electrical connector according to claim 5, wherein the first recess includes a pair of facing wall surfaces positioned substantially parallel to each other. ### Claim 7 (depends on 6) The electrical connector according to claim 6, wherein the first rotation prevention member is mated with the pair of facing wall surfaces in a substantially gapless manner when the first rotation prevention member is positioned in the first recess. ### Claim 8 (depends on 7) The electrical connector according to claim 7, wherein the lock further includes a second rotation prevention member separated from the first rotation prevention member by a gap there between. ### Claim 9 (depends on 8) The electrical connector according to claim 8, wherein the housing includes a second recesses separated from the first recess by a wall there between. ### Claim 10 (depends on 9) The electrical connector according to claim 9, wherein the wall is insertable into the gap. ### Claim 11 (depends on 10) The electrical connector according to claim 10, wherein the lock further includes a second pressing rod extending from the horizontal base plate and separately arranged from the first pressing rod. ### Claim 12 (depends on 11) The electrical connector according to claim 11, wherein the lock further includes a second locking piece extending from the horizontal base plate and separately arranged from the first locking piece and the second pressing rod. ### Claim 13 (depends on 12) The electrical connector according to claim 12, wherein the first rotation prevention member has a length less than a length of the first locking piece. ### Claim 14 (depends on 1) The electrical connector according to claim 1, wherein the housing further includes a second receiving chamber positioned adjacent to the first receiving chamber with the first recess positioned between the first receiving chamber and the second receiving chamber. ### Claim 15 (depends on 14) The electrical connector according to claim 14, wherein the housing further includes a second recess positioned adjacent to the first recess between the first receiving chamber and the second receiving chamber. ### Claim 16 (depends on 15) The electrical connector according to claim 15, wherein the housing further includes a wall positioned between the first recess and the second recess. ### Claim 17 (depends on 16) The electrical connector according to claim 16, wherein the lock further includes a second pressing rod extending downward from the horizontal base plate and insertable into the second receiving chamber. ### Claim 18 (depends on 17) The electrical connector according to claim 17, wherein the lock further includes a second rotation prevention member extending downward from the horizontal base plate and insertable into the second recess. ### Claim 19 (depends on 18) The electrical connector according to claim 18, wherein the first rotation prevention member is separated from the second rotation prevention member by a gap there between. ### Claim 20 (depends on 19) The electrical connector according to claim 19, wherein the wall is insertable into the gap. ### Claim 21 (depends on 20) The electrical connector according to claim 20, wherein the lock further includes a second locking piece extending downward from the horizontal base plate and separated from the second pressing rod and the second rotation prevention member. ### Claim 22 (depends on 1) The electrical connector according to claim 1, wherein the first pressing rod has a semi cylindrical shape.