Abstract: An electrical connection plug includes an insulating base, a metal housing, and a fitting portion. The left and right sides of the metal housing are shaped to have semi-circular arc structures. The upper and lower surface and the left and right sides of the metal housing that perpendicularly correspond the fitting space are formed to have hole-free structures. The height of the two contact interface substrates is smaller than the height 0.9 mm of a fitting interface substrate of a biased electrical connection plug having the minimum height specification specified by USB Association and larger than 0.28 mm. The height of the two contact interface substrates enables the two contact interface substrates to tightly fit the two spaces.

Abstract: An electrical connector includes: a plastic seat; a tongue; and two rows of terminals; characterized in that a front section of the tongue is a thinner plate body, top and bottom surfaces of the thinner plate body are two front-section surfaces, a rear section of the tongue is a thicker plate body, top and bottom surfaces of the thicker plate body are two rear-section surfaces, the rear-section surface of one of the top and bottom surfaces of the tongue projects more than the entire front-section surface of the corresponding one of the top and bottom surfaces of the tongue by a height so that a step is formed between the rear-section and front-section surfaces of each of the top and bottom surfaces of the tongue. A combination of the bidirectional duplex electrical connector and a docking electrical connector is also provided.

Abstract: A bidirectional electrical connector includes: a housing made of a metal material; an insulation seat; a tongue; and two rows of contact terminals. Each of the two rows of contact terminals is provided with a contact. The two rows of contacts of the two rows of contact terminals are respectively disposed on the top and bottom sides of the tongue. Top and bottom surfaces of a front section of the tongue are projectingly provided with at least two limit projections, so that the top and bottom surfaces of the front section of the tongue have concave-convex structures, the at least two limit projections project beyond each of the two rows of contacts, and the concave-convex structure on the top and bottom surfaces of the tongue can make each row of contacts be isolated from the housing to prevent each row of contacts from being short-circuited.

Abstract: A reversible dual-position electrical connector includes an insulation seat, two rows of terminals, and two snaps. The insulation seat is provided with a base seat and a tongue. The two rows of terminals include two pairs of grounding terminals and two pairs of power terminals. The two pairs of ground terminals are provided with two pairs of vertically aligned grounding contacts. The two pairs of power terminals are provided with two pairs of vertically aligned power contacts. The two snaps are fixedly disposed at left and right sides of the tongue, respectively. Particularly, the two snaps are respectively formed at two metal plate sheets. The grounding contacts of each pair of the ground terminals are stacked longitudinally on the top and bottom surfaces of the respective metal plate sheet.

Abstract: A bidirectional duplex electrical connector includes: two insulation seats being each integrally provided with a base portion and a docking portion and being stacked in the up-down direction; a connection slot is formed between the baseplates of the docking portions of the two insulation seats; two rows of terminals assembled into two rows of terminal slots of the two insulation seats in the up-down direction, each of the terminals is integrally provided with, from front to rear, an elastically movable portion and a fixing portion, a front section of the elastically movable portion is provided with a contact projecting from the baseplate to the connection slot; and a metal housing covering the two insulation seats.

Abstract: Provided is a bidirectional electrical connection plug, which can be inserted and connected to a bidirectional electrical connection socket. A connection slot of the bidirectional electrical connection socket is provided with a tongue. Two symmetrical spaces are formed on the two connection surfaces of the tongue in the connection slot. The bidirectional electrical connection plug comprises an insulating base, a metal housing and a fitting portion. The fitting portion has two contact interface substrates. Heights of the two contact interface substrates are smaller than a fitting interface substrate of a standard electrical connection plug with a minimum height specification specified by USB Association, and larger than a small space of a connection slot of a standard electrical connection socket with the minimum height specification specified by USB Association. The heights of the two contact interface substrates can be tightly fit with the two spaces.

Abstract: A reversible dual-position electrical connector includes: an insulation seat provided with a base seat and a tongue; two rows of terminals, wherein the two rows of terminals are embedded into and plastic injection molded with the insulation seat, the terminal is integrally provided with, from front to rear, a connection portion, a contact, an extension and a pin, the contact is in flat surface contact with the tongue, elastically non-movable and exposed from two connection surfaces, and a bent segment is formed between the connection portion and the contact, so that the connection portion is lower than the two connection surfaces and embedded into the tongue; an inner insulating structure embedded and plastic injection molded with the insulation seat, wherein the contacts and the extensions of the two rows of terminals are in flat surface contact with and rest against the inner insulating structure.

Abstract: An electrical connector includes: a plastic seat; a tongue; and two rows of terminals; characterized in that a front section of the tongue is a thinner plate body, top and bottom surfaces of the thinner plate body are two front-section surfaces, a rear section of the tongue is a thicker plate body, top and bottom surfaces of the thicker plate body are two rear-section surfaces, the rear-section surface of one of the top and bottom surfaces of the tongue projects much more than the entire front-section surface of the corresponding one of the top and bottom surfaces of the tongue by a height so that a step is formed between the rear-section and front-section surfaces of each of the top and bottom surfaces of the tongue, and a side view of the tongue has a convex shape.

Abstract: An electrical connection plug includes an insulating base, a metal housing, and a fitting portion. The left and right sides of the metal housing are shaped to have semi-circular arc structures. The upper and lower surface and the left and right sides of the metal housing that perpendicularly correspond the fitting space are formed to have hole-free structures. The height of the two contact interface substrates is smaller than the height 0.9 mm of a fitting interface substrate of a biased electrical connection plug having the minimum height specification specified by USB Association and larger than 0.28 mm. The height of the two contact interface substrates enables the two contact interface substrates to tightly fit the two spaces.

Abstract: A bidirectional duplex electrical connector includes: two insulation seats; two rows of first terminals, wherein the first terminal has an elastically movable portion, a fixing portion and a pin, a front section of the elastically movable portion is curved to form a contact, and a rear section of the elastically movable portion and the fixing portion horizontally rest against the insulation seat, the insulation seat has a fixing structure fixing the fixing portions of the two rows of first terminals, and the rear sections still can elastically move; one row of second terminals, wherein the second terminal has two elastic arms each having a contact projecting toward a middle, and the second terminal has a vertical plate surface; and a metal housing covering the two insulation seats.

Abstract: A bidirectional electrical connector includes: a housing made of a metal material; an insulation seat; a tongue; and two rows of contact terminals. Each of the two rows of contact terminals is provided with a contact. The two rows of contacts of the two rows of contact terminals are respectively disposed on the top and bottom sides of the tongue. Top and bottom surfaces of a front section of the tongue are projectingly provided with at least two limit projections, so that the top and bottom surfaces of the front section of the tongue have concave-convex structures, the at least two limit projections project beyond each of the two rows of contacts, and the concave-convex structure on the top and bottom surfaces of the tongue can make each row of contacts be isolated from the housing to prevent each row of contacts from being short-circuited.

Abstract: Provided is a bidirectional electrical connection socket, to which a fitting portion of a bidirectional electrical connection plug can be inserted and connected, the fitting portion having two contact interface substrates, the bidirectional electrical connection socket including: an insulating base having one end formed with a tongue, each of two connection surfaces thereof has a contact interface formed by terminals; and a metal housing covering the tongue to form a connection slot, characterized in that the contact interfaces have connection points with circuit serial numbers arranged reversely, two fitting gaps between the contact interface substrates and the connection surfaces of the tongue are smaller than 0.15 mm, and the heights of the spaces on the connection surfaces are smaller than the large space of the standard electrical connection socket with the minimum height specification specified by USB Association, but greater than the small space of the standard electrical connection socket.

Abstract: A bidirectional duplex electrical connector includes: two insulation seats; two rows of first terminals, wherein the first terminal has an elastically movable portion, a fixing portion and a pin, a front section of the elastically movable portion is curved to form a contact, and a rear section of the elastically movable portion and the fixing portion horizontally rest against the insulation seat, the insulation seat has a fixing structure fixing the fixing portions of the two rows of first terminals, and the rear sections still can elastically move; one row of second terminals, wherein the second terminal has two elastic arms each having a contact projecting toward a middle, and the second terminal has a vertical plate surface; and a metal housing covering the two insulation seats.

Abstract: An electronic device includes a transmission medium and first and second duplex electrical connection plugs. The first duplex electrical connection plug includes: an insulated seat; two terminal sets disposed in the insulated seat; and a metal housing covering the insulated seat and provided with a four-sided primary housing, wherein heights of two contact interface substrates of the second duplex electrical connection plug can be fit with the two spaces of the two connection surfaces of a tongue, and a connection slot of the first duplex electrical connection plug is fit with the tongue. The second duplex electrical connection plug includes: an insulated seat; a metal housing covering the insulated seat; and a fitting portion provided on one end of the insulated seat, wherein heights of two contact interface substrates of the second duplex electrical connection plug can be fit with two spaces of two connection surfaces of another tongue.

Abstract: An electrical connector includes: a plastic seat; a tongue connected to and disposed on a front end of the plastic seat; and two rows of terminals. Each of the terminals is provided with an electrical connection point. The electrical connection points of the two rows of terminals are respectively arranged on top and bottom surfaces of the tongue. A front section of the tongue is a thinner flat plate body, top and bottom surfaces of the thinner flat plate body are two low surfaces, a rear section of the tongue is a thicker flat plate body, top and bottom surfaces of the thicker flat plate body are two high surfaces, and a side view of the tongue has a convex shape. A combination of the bidirectional duplex electrical connector and a docking electrical connector is also provided.

Abstract: In a low-height connector combination, a duplex electrical connection socket includes: an insulation base having a tongue, and a metal housing formed with a connection slot. Heights of spaces of the connection surfaces are smaller than a large space of a standard socket having a minimum height and greater than a small space of the standard socket. A duplex electrical connection plug includes an insulation base, a metal housing and a fitting portion having two contact interface substrates and a fitting space. Heights of the contact interface substrates are smaller than a contact interface substrate of a standard plug having a minimum height and greater than the small space. The fitting portion can be bidirectionally inserted into the connection slot. Each of two fitting gaps of the fitting portion between the contact interface substrates and the connection surfaces of the tongue is smaller than 0.15 mm to form tight fitting.

Abstract: A bidirectional double-sided electrical connector includes a tongue and two rows of elastically movable connection points disposed on top and bottom sides of the tongue, wherein the tongue and the elastically movable connection points can respectively act independently. Two rows of contact terminals provide the two rows of elastically movable connection points and are positioned on an insulation seat. The tongue is vertically and floatingly movable relative to the insulation seat. The elastically movable connection points are respectively floatingly disposed on, lie on or are embedded with the top and bottom sides of the tongue.

Abstract: A bidirectional electrical connector includes a floating or fixed tongue. One metal plate is deployed without overlap to manufacture upper and lower contact interfaces and a metal tongue. The tongue and the H-shaped limit structure can eliminate the short-circuited problem when the bidirectional electrical connector is docked with a complementary electrical connector. The metal tongue or the structure with the metal reinforcement sheets added into the insulation tongue can optimize the use of the bidirectional electrical connector. A snap structure on a metal housing facilitates smooth docking, and the docked state cannot easily get loose, thereby enhancing the docking stability.

Abstract: A bidirectional duplex electrical connector includes: two insulation seats; two rows of terminals assembled into the two rows of terminal slots of the two insulation seats in a vertical direction, wherein the terminal is integrally provided with, from front to rear, an elastically movable portion, a fixing portion and a pin, a front section of the elastically movable portion is curved and provided with a projecting contact, the elastically movable portion is vertically elastically movable, a rear section of the elastically movable portion and the fixing portion are on the same level and rest against a bottom surface of the terminal slot, a depth of the terminal slot is greater than a material thickness of the terminal, and the insulation seat is provided with a fixing structure fixing the fixing portions of the one row of terminals; and a metal housing covering the two insulation seats.

Abstract: A socket structure includes a base; a slot, disposed on one end of the base and to be connected to one plug having one row of terminals; a tongue disposed on a front end of the base and within the slot so that chambers of the slot on two sides of the tongue may be normally and oppositely inserted and positioned into the slot; one row of first contacts separately arranged on one surface of the tongue, wherein each first contact is electrically connected to a first pin extending out of the base; and one row of second contacts separately arranged on the other surface of the tongue. Each second contact is electrically connected to a second pin extending out of the base. When the plug is inserted into the slot, the row of terminals of the plug are electrically connected to the row of first or second contacts.