# US 7,744,410 B2 · Sinking type electrical connector and assembly of the sinking type electrical connector and a circuit board > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,744,410 B2 - Document ID: US7744410B2 - Status: Granted - Kind: B2 - Application number: 12/495,265 - Filed: 2009-06-30 - Published: 2010-04-22 - Granted: 2010-06-29 - Earliest claimed: 2008-10-20 - Assignees: Wistron Corporation - Inventors: Sung-Yu Hsieh; Wen-Chin Wu - Web page: https://patentgrep.com/patent/US7744410B2 ## CPC - H01R 12/7005: {Guiding, mounting, polarizing or locking means; Extractors (for printed circuit boards H05K)} - H01R 12/7052: {characterised by the locating members} - H01R 12/716: {Coupling device provided on the PCB} - H05K 1/182: associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC] - H05K 3/306: with lead-in-hole components (H05K3/32 takes precedence) - H01R 25/006: {the coupling part being secured to apparatus or structure, e.g. duplex wall receptacle} - H05K 2201/09063: Holes or slots in insulating substrate not used for electrical connections - H05K 2201/09954: More mounting possibilities, e.g. on same place of PCB, or by using different sets of edge pads - H05K 2201/10189: Non-printed connector - H05K 2201/10446: Mounted on an edge - H05K 2201/10803: Tapered leads, i.e. leads having changing width or diameter - H05K 2201/10871: Leads having an integral insert stop - H05K 2203/167: Using mechanical means for positioning, alignment or registration, e.g. using rod-in-hole alignment - Y10T 29/49139: by inserting component lead or terminal into base aperture - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A sinking type electrical connector is adapted for coupling to a circuit board. The sinking type electrical connector includes a body and at least one limiting unit. The body has a front end portion, a connecting portion provided in the front end portion, and a top surface. The limiting unit is provided at one side of the body and includes a plurality of limiting portions respectively located at different levels. A selected one of the limiting portions of the limiting unit which are at different levels is brought to engage the circuit board so that a distance from the top surface of the body to the circuit board is changeable. ## Claims ### Claim 1 A sinking type electrical connector adapted to be coupled to a circuit board, said sinking type electrical connector comprising: a body having a front end portion, a connecting portion provided in said front end portion, and a top surface; and at least one limiting unit provided at one side of said body and including a plurality of limiting portions respectively located at different levels, a selected one of said limiting portions of said limiting unit which are at different levels being brought to engage the circuit board so that a distance from said top surface of said body to the circuit board is changeable. ### Claim 2 (depends on 1) The sinking type electrical connector as claimed in claim 1, wherein said limiting portions are tabs protruding laterally from said body. ### Claim 3 (depends on 2) The sinking type electrical connector as claimed in claim 2, wherein said tabs are arranged out-of-line with each other in a front-and-rear direction. ### Claim 4 (depends on 3) The sinking type electrical connector as claimed in claim 3, further comprising at least one insert piece extending downwardly from said body for insertion into the circuit board. ### Claim 5 (depends on 1) The sinking type electrical connector as claimed in claim 1, further comprising at least one insert piece extending downwardly from said body for insertion into the circuit board. ### Claim 6 (depends on 5) The sinking type electrical connector as claimed in claim 5, wherein said insert piece extends convergently in a downward direction, said limiting portions being portions of said insert piece at different levels. ### Claim 7 (depends on 6) The sinking type electrical connector as claimed in claim 6, wherein said insert piece is of a substantially wedged shape. ### Claim 8 (depends on 6) The sinking type electrical connector as claimed in claim 6, wherein said insert piece has two lateral edges which are stepped. ### Claim 9 (depends on 6) The sinking type electrical connector as claimed in claim 6, further comprising a protruding block protruding from another side of said body and having a stepped bottom surface part. ### Claim 10 (depends on 9) The sinking type electrical connector as claimed in claim 9, further comprising a plurality of terminals provided in said body, said terminals protruding outwardly of said bottom surface part of said protruding block and being stepped. ### Claim 11 (depends on 10) The sinking type electrical connector as claimed in claim 10, wherein said protruding block protrudes from a rear side of said body, said bottom surface part extending rearwardly and upwardly. ### Claim 12 An assembly of a sinking type electrical connector and a circuit board, comprising: a circuit board provided with a receiving recess and at least one positioning hole; and a sinking type electrical connector including: a body having a front end portion, a connecting portion provided in said front end portion, and a top surface; at least one insert piece which corresponds in number to said positioning hole, and which extends downwardly from said body for insertion into said positioning hole such that said body is received and positioned in said receiving recess; and at least one limiting unit provided at one side of said body and including a plurality of limiting portions respectively located at different levels, a selected one of said limiting portions of said limiting unit which are at different levels being brought to engage said circuit board so that a distance from said top surface of said body to said circuit board is changeable. ### Claim 13 (depends on 12) The assembly of a sinking type electrical connector and a circuit board as claimed in claim 12, wherein said limiting portions are tabs protruding laterally from said body, one of said tabs abutting against said circuit board when said sinking type electrical connector is coupled to said circuit board. ### Claim 14 (depends on 13) The assembly of a sinking type electrical connector and a circuit board as claimed in claim 13, wherein said tabs are arranged out-of-line with each other in a front-and-rear direction. ### Claim 15 (depends on 12) The assembly of a sinking type electrical connector and a circuit board as claimed in claim 12, wherein said insert piece extends convergently in a downward direction, said limiting portions being portions of said insert piece at different levels. ### Claim 16 (depends on 15) The assembly of a sinking type electrical connector and a circuit board as claimed in claim 15, wherein said insert piece is of a substantially wedged shape. ### Claim 17 (depends on 15) The assembly of a sinking type electrical connector and a circuit board as claimed in claim 15, wherein said insert piece has two lateral edges which are stepped. ### Claim 18 (depends on 15) The assembly of a sinking type electrical connector and a circuit board as claimed in claim 15, wherein said sinking type electrical connector further includes a protruding block protruding from another side of said body and having a stepped bottom surface part. ### Claim 19 (depends on 18) The assembly of a sinking type electrical connector and a circuit board as claimed in claim 18, wherein said sinking type electrical connector further includes a plurality of terminals provided in said body, said terminals protruding outwardly of said bottom surface part of said protruding block and being stepped. ### Claim 20 (depends on 19) The assembly of a sinking type electrical connector and a circuit board as claimed in claim 19, wherein said protruding block protrudes from a rear side of said body, said bottom surface part extending rearwardly and upwardly.