# US 9,039,451 B2 · Power device and plug structure thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,451 B2 - Document ID: US9039451B2 - Status: Granted - Kind: B2 - Application number: 13/912,742 - Filed: 2013-06-07 - Published: 2014-07-17 - Granted: 2015-05-26 - Earliest claimed: 2013-01-16 - Assignees: Delta Electronics, Inc. - Applicants: Delta Electronics, Inc. - Inventors: Chin-Chu Huang - Web page: https://patentgrep.com/patent/US9039451B2 ## CPC - H01R 13/6691: {with built-in signalling means (H01R13/717 takes precedence)} - H01R 31/065: {with built-in electric apparatus} - H01R 2103/00: Two poles - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract In a power device and a plug structure, the plug structure includes an electrical conductor, a pin and a conductive elastic sheet. The pin is correspondingly arranged to the electrical conductor. The pin has a conducting portion and a distal end formed on the conducting portion. The conductive elastic sheet has a lateral segment and at least one longitudinal segment extending from the lateral segment. The lateral segment has a first convex portion and a second convex portion reversed from each other. The longitudinal segment has a third convex portion. The lateral segment is clamped between the distal end and the electrical conductor, the first convex portion contacts the electrical conductor, the second convex portion grasps and contacts the distal end, and the third convex portion contacts the conducting portion. ## Claims ### Claim 1 A plug structure, comprising: an electrical conductor; a pin arranged to the electrical conductor, having a conducting portion and a distal end formed on the conducting portion; and a conductive elastic sheet disposed between the pin and the electrical conductor, having a lateral segment and at least one longitudinal segment extending from the lateral segment, the lateral segment having a first convex portion and a second convex portion reversed from each other, the longitudinal segment having a third convex portion; wherein, the lateral segment is clamped between the distal end and the electrical conductor, the first convex portion contacts the electrical conductor, the second convex portion contacts the distal end, and the third convex portion contacts the conducting portion. ### Claim 2 (depends on 1) The plug structure according to claim 1, wherein the first convex portion bends between the lateral segment and the longitudinal segment and forms a first opening with a first angle towards the pin, the second convex portion bends on the lateral segment and forms a second opening with a second angle towards the electrical conductor, and the third convex portion bends on the longitudinal segment and forms a third opening with a third angle towards the pin. ### Claim 3 (depends on 2) The plug structure according to claim 2, wherein there are two longitudinal segments, such that the lateral segment is of W-shaped, and the longitudinal segment is of V-shaped. ### Claim 4 (depends on 1) The plug structure according to claim 1, wherein there are two longitudinal segments formed on two ends of the lateral segment, respectively, and the conductive elastic sheet grasps the conducting portion via two third convex portions. ### Claim 5 A power device, comprising: a main body including a housing and a circuit board accommodating in an inside of the housing; and a plug structure connected to the housing, the plug structure including: an electrical conductor; a pin arranged to the electrical conductor, having a conducting portion and a distal end formed on the conducting portion; and a conductive elastic sheet disposed between the pin and the electrical conductor, having a lateral segment and at least one longitudinal segment extending from the lateral segment, the lateral segment having a first convex portion and a second convex portion reversed from each other, the longitudinal segment having a third convex portion; wherein, the lateral segment is clamped between the distal end and the electrical conductor, the first convex portion contacts the electrical conductor, the second convex portion contacts the distal end, and the third convex portion contacts the conducting portion. ### Claim 6 (depends on 5) The power device according to claim 5, wherein the first convex portion bends between the lateral segment and the longitudinal segment and forms a first opening with a first angle towards the pin, the second convex portion bends on the lateral segment and forms a second opening with a second angle towards the electrical conductor, and the third convex portion bends on the longitudinal segment and forms a third opening with a third angle towards the pin. ### Claim 7 (depends on 6) The power device according to claim 6, wherein there are two longitudinal segments, such that the lateral segment is of W-shaped, and the longitudinal segment is of V-shaped. ### Claim 8 (depends on 5) The power device according to claim 5, wherein there are two longitudinal segments formed on two ends of the lateral segment, and the conductive elastic sheet grasps the conducting portion via two third convex portions. ### Claim 9 (depends on 5) The power device according to claim 5, wherein the plug structure is a replaceable plug including a plug base, the plug base has a butting segment, the electrical conductor is a conductive sheet fixed to and exposed to the plug base, the pin and the conductive elastic sheet are fixed to the plug base, the main body further includes a plurality of metal elastic sheets, the metal elastic sheet is electrically connected to the circuit board and exposed to the housing, the housing has a assembling section, and the assembling section and the butting segment are assembled with each other, such that the metal elastic sheet and the conductive sheet contact with each other. ### Claim 10 (depends on 9) The power device according to claim 9, wherein the plug base includes a first base body and a second base body fixed with each other, two ends of the first base body have a first penetration slot and a second penetration slot communicated with each other, the pin is inserted positioned in the first penetration slot, the conducting portion is exposed to the second penetration slot, two ends of the second housing have a fixing segment and the butting segment, respectively, a convex block is extended from the fixing segment, the convex block has a through slot, the through slot forms an end edge away from an internal periphery of the first base body, the conductive sheet is locked to and positioned on the end edges, the conductive elastic sheet is accommodated in the through slot, and the convex block is inserted in the second penetration slot, such that the conducting portion is accommodated in the through slot. ### Claim 11 (depends on 10) The power device according to claim 10, wherein a wing block extends from an end portion of an external periphery of the first base body, the fixing segment has a recess portion, and the wing block is connected to the recess portion via an ultrasonic welding method. ### Claim 12 (depends on 9) The power device according to claim 9, wherein the housing has a plurality of ports and a U-shaped locking block extending with respect to surroundings of the ports, the metal elastic sheet is fixed to the circuit board and exposed to the port, the U-shaped locking block forms the assembling section, a plurality of sliding blocks protrude from an external periphery of the plug base so as to form the butting segments, and the sliding blocks slide and are locked to the U-shaped locking block. ### Claim 13 (depends on 5) The power device according to claim 5, wherein the plug structure is a stationary plug, the electrical conductors are a plurality of circuits formed on the circuit board, and the pin and the conductive elastic sheet are fixed to the housing. ### Claim 14 (depends on 13) The power device according to claim 13, wherein the housing includes a first housing and a second housing, the circuit board is accommodated in an inside of the first housing, a plurality of protrusion blocks extend from the first housing, the protrusion block has a perforation slot, the conductive portion is correspondingly arranged to the perforation slot, the conductive elastic sheet is accommodated in the perforation slot, two ends of the second housing have a plurality of first accommodation slots and a second accommodation slot communicated with each other, respectively, the pin is inserted in and positioned on the first accommodation slot, the conducting portion is exposed to the second accommodation slot, and the protrusion block is inserted in each of the second accommodation slots, such that the conducting portion is accommodated in the perforation slot. ### Claim 15 (depends on 14) The power device according to claim 14, wherein a wing portion extends from an end portion of an external periphery of the second housing, the first housing has a concave portion, and the wing portion is connected to the concave portion via an ultrasonic welding method. ### Claim 16 A plug structure, comprising: an electrical conductor; a pin correspondingly arranged to the electrical conductor, having a conducting portion and a distal end formed on the conducting portion; and a conductive elastic sheet disposed between the pin and the electrical conductor, having a lateral segment and two longitudinal segments extending from the lateral segment; wherein, the lateral segment is clamped between the distal end and the electrical conductor, the two longitudinal segments are grasped to two sides of the conducting portion, and three conducting points are formed between the conductive elastic sheet and the conducting portion, such that each of the electrical conductors and each of the pins achieve electrical connection via the conducting points. ### Claim 17 (depends on 16) The plug structure according to claim 16, wherein the lateral segment has a first convex portion and a second convex portion reversed from each other, the longitudinal segment has a third convex portion, the first convex portion contacts the electrical conductor, the second convex portion contacts the distal end, and the third convex portion contacts the conducting portion. ### Claim 18 (depends on 17) The plug structure according to claim 17, wherein the second convex portion and the two third convex portions contact the conducting portion so as to form the conducting point. ### Claim 19 (depends on 17) The plug structure according to claim 17, wherein the first convex portion bends between the lateral segment and the longitudinal segment and forms a first opening with a first angle towards the pin, the second convex portion bends on the lateral segment and forms a second opening with a second angle towards the electrical conductor, and the third convex portion bends on the longitudinal segment and forms a third opening with a third angle towards the pin. ### Claim 20 (depends on 19) The plug structure according to claim 19, wherein the lateral segment is of W-shaped, and the longitudinal segment is of V-shaped.