Abstract: Disclosed is a battery casing manufacturing method which comprises: providing a casing film; providing a casing body; aligning the casing film and the casing body; and connecting the casing film and the casing body by using a welding process. The welding process transmits energy to the predetermined joint area of the casing film and/or the casing body in a non-physical contact way to make them connected.

Abstract: The present invention discloses a battery module including a casing capable of supporting a plurality of battery cells and having a circuit board holding structure, a circuit board held by the circuit board holding structure, a plurality of conducting buses disposed on the casing for electrically connecting the plurality of battery cells and the circuit board, and a plurality of battery cell sets, each of which including a battery holder and at least two battery cells, where any two of the plurality of battery cell sets are independent in structure and thereby can be affixed to the casing or detached from the casing respectively.

Abstract: The present invention provides a battery pack which comprises a case for defining a space; a first and second cell boxes set inside the space for accepting battery cells; a first, second and third conductors for electrically connecting the electrodes of the battery cells set in the first and second cell boxes; a conductive layout formed on the inside surface of the case for electrically connecting the battery cells; and a circuit board disposed in the space and connected with the battery cells through the conductive layout and the first, second and third conductors. The first cell box, the second cell box, the circuit board and/or at least one of the battery cells is capable of being taken apart from the battery pack and replaced in a non-destructive way.

Abstract: An electronic device having rotatable display. The rotatable display includes a data transmission board having at least one first connector, a first locating plate on which the data transmission board is secured, a second locating plate for rotational engagement with the first locating plate and a printed circuit board having a plurality of concentric connecting portions secured on the second locating plate. The first connector maintains contact with the connecting portions for signal transmission by means of the rotational engagement of the first locating plate and the second locating plate.

Abstract: An electronic device having rotatable display. The rotatable display includes a data transmission board having at least one first connector, a first locating plate on which the data transmission board is secured, a second locating plate for rotational engagement with the first locating plate and a printed circuit board having a plurality of concentric connecting portions secured on the second locating plate. The first connector maintains contact with the connecting portions for signal transmission by means of the rotational engagement of the first locating plate and the second locating plate.

Abstract: A hinge device installed between a rotatable panel and a computing module, having a keyboard installed thereon, has a first connection rod and a second connection rod. The first connection rod has a connection end connected to the rotatable panel, and a protruding end. The second connection rod has a hollow cylinder, a connection end connected to the keyboard for transferring torque to rotate the rotatable panel, and an indented end, having an engaging groove, for connecting with the protruding end of the first connection rod. When the protruding end engages with the engaging groove, the second connection rod will rotate with the first connection rod.

Abstract: A hinge device installed between a rotatable panel and a computing module, having a keyboard installed thereon, has a first connection rod and a second connection rod. The first connection rod has a connection end connected to the rotatable panel, and a protruding end. The second connection rod has a hollow cylinder, a connection end connected to the keyboard for transferring torque to rotate the rotatable panel, and an indented end, having an engaging groove, for connecting with the protruding end of the first connection rod. When the protruding end engages with the engaging groove, the second connection rod will rotate with the first connection rod.