An electronic device, comprising:
- a transmission medium;
- a first duplex electrical connection plug comprising:
- an insulated seat, wherein the insulated seat is provided with a base seat and a docking part fitting with each other, the docking part is provided with two connection plates facing each other in a vertical direction and is provided with two side plates connected to the two connection plates to form a fitting frame body, each of opposite surfaces of the two connection plates is provided with a connection surface, and a connection slot is formed between the two connection surfaces, wherein at least one of the connection plates is provided with one or multiple elastic movement spaces much more depressed than the connection surface, and a rear end of the docking part is fitted with and positioned at a front end of the base seat;
- at least two terminal sets disposed in the insulated seat, wherein each of the terminal sets is provided with at least one row of terminals, the terminal is provided with a fixing portion and an extension, the fixing portion is fixed to the base seat, the extension is directly connected to a front end of the fixing portion, the fixing portion is directly fixed to the base seat and the extension extends out of the front end of the base seat, wherein after the two terminal sets are fixed to and combined with the base seat to form a total combination, the base seat is fitted with and positioned at the docking part, so that the docking part can be independently fitted with and positioned at, or separated from the total combination, wherein the extension is elastically movable up and down relatively to the docking part, the extension extends to the one or multiple elastic movement spaces of one of the connection surfaces and is provided with a contact projecting beyond the connection surface, the contact is elastically movable up and down, and the contacts of the terminals of each of the terminal sets project from the one of the connection surfaces to the connection slot to form a contact interface, wherein the total combination comprises the two terminal sets and the base seat combined together, and the two terminal sets are electrically connected to the transmission medium;
- and a metal housing covering the insulated seat and provided with a four-sided primary housing, wherein the four-sided primary housing shields the docking part to form a docking structure, the metal housing and the two connection plates form two contact interface substrates, and the contact interface substrate has a height, which is a perpendicular distance from an outer surface of the metal housing to the connection surface, wherein the heights of the two contact interface substrates are smaller than a height of a fitting interface substrate of a biased electrical connection plug having a minimum height specification of 0.9 mm specified by USB Association and larger than or equal to 0.65 mm;
- wherein the docking structure can be bidirectionally inserted into a connection slot of a first duplex electrical connection socket, the connection slot is formed by a metal housing, a tongue is disposed at a middle height of the connection slot of the first duplex electrical connection socket, upper and lower connection surfaces of the tongue form symmetrical two spaces, the heights of the two contact interface substrates of the first duplex electrical connection plug can be fit with the two spaces of the two connection surfaces of the tongue, and the connection slot of the first duplex electrical connection plug is fit with the tongue;
- and
- a second duplex electrical connection plug comprising:
- an insulated seat;
- a metal housing covering the insulated seat;
- and a fitting portion provided on one end of the insulated seat, wherein the fitting portion is provided with two contact interface substrates, which have the same height and face each other, and a fitting space, each of the two contact interface substrates is provided with an insulating layer, an interval between the two contact interface substrates is the fitting space, the two contact interface substrates has two inside layers being the insulating layers and two outside layers pertaining to the metal housing, each of the two contact interface substrates is provided with a contact interface, each of the two contact interfaces is provided with two rows of contacts arranged in a front-low and rear-high manner, the two rows of contacts project beyond the contact interface substrate and are elastically movable up and down, the two rear rows of contacts are formed on two rows of terminals, the terminal is provided with a pin, a fixing portion and an extension, the fixing portion is fixed to the insulated seat, the extension is connected to one end of the fixing portion, extends to the contact interface substrate and is provided with the contact, the pin is connected to the other end of the fixing portion, at least one pair of the contacts of the two contact interfaces with the same circuit are arranged reversely, at least one pair of the contacts of the two contact interfaces with the same circuit are electrically connected together, and the two contact interfaces are electrically connected to the transmission medium and electrically connected to the two terminal sets of the first duplex electrical connection plug;
- wherein the insulated seat is provided with vertically stacked upper and lower bases, the upper and lower bases are respectively embedded with, injection molded with and fixed to the two rows of terminals, a middle between the upper and lower bases is provided with a transversally extending metal partition plate, the metal partition plate separates the two rows of terminals from each other, and the heights of the two contact interface substrates are the same and are smaller than a height of a fitting interface substrate of the biased electrical connection plug having the minimum height specification of 0.9 mm specified by USB Association and larger than or equal to 0.65 mm;
- wherein the fitting portion can be bidirectionally inserted into a connection slot of a second duplex electrical connection socket, the connection slot is formed by a metal housing, a tongue is disposed at a middle height of the connection slot of the duplex electrical connection socket, upper and lower connection surfaces of the tongue form symmetrical two spaces, the heights of the two contact interface substrates of the second duplex electrical connection plug can be fit with the two spaces of the two connection surfaces of the tongue, and the fitting space is fit with the tongue.