5results about How to "Flexible wiring" patented technology

The invention discloses an energy storage grid-connected and off-grid switching system and a control method thereof. The invention belongs to an energy storage system control system and method, and provides an energy storage grid-connected and off-grid switching system and a control method thereof for solving the problem that when a power grid in an energy storage system breaks down and is recovered, an existing grid-connected and off-grid switching method is likely to fail in switching. According to the first type, one battery pack, one power conversion system and one static change-over switch are sequentially connected to form an energy storage cabinet, and all the energy storage cabinets are connected in parallel and then connected to a power grid and a local load. According to the other mode, a plurality of static change-over switches are connected in parallel to form a static change-over switch cabinet, a plurality of power conversion systems are connected in parallel to form a power conversion system cabinet, and the static change-over switch cabinet is connected with the power conversion system cabinet and then is connected with a power grid and a load, so that flexible wiring can be realized, and a modularized structure is arranged, so that adjustment and capacity expansion can be conveniently carried out at any time; and the stability of grid-connected and off-grid switching can also be considered.

The application discloses a kind of power chip electrical performance testing device, comprising: device base, including base shell, collector metal structure and collector terminal;Pressing electrode, including pressing electrode shell, emitter terminal is equipped on the pressing electrode shell, emitter metal structure is equipped in the bottom of pressing electrode shell;The side of pressing electrode shell is equipped with gate terminal and grid stylus;Transmission cavity and button, pressing electrode shell is assembled in transmission cavity by pressure spring, transmission cavity is equipped with transmission gear, one side of transmission gear is engaged with button, and the other side is engaged with pressing electrode shell, transmission cavity bottom is connected with device base by rotating assembly, press button, pressing electrode is lifted while transmission cavity moves down, the transmission cavity is supported by rotating assembly, and the pressing and translation button rotate the pressing electrode to test station or waiting station.The present application can guarantee the crimping connection of power chip electrode, ensure the consistency of connection interface pressure, and improve the test efficiency.

The invention provides a semiconductor packaging structure and a manufacturing method thereof. The semiconductor packaging structure comprises the components of a substrate which is provided with a first surface and a second surface which are oppositely arranged along the thickness direction of the substrate, the first surface is provided with a groove, the substrate is also internally provided with a first via hole, and the first via hole penetrates through the first surface and the second surface and is located at the side of the groove; the first shielding layer covers the bottom wall and the side wall of the groove; the chip is arranged in the groove, the chip is provided with a pin, and the pin is electrically connected with the first via hole; and the second shielding layer covers at least part of the surface, deviating from the bottom wall of the groove, of the chip. The semiconductor packaging structure is used for achieving the effect of improving magnetic shielding comprehensiveness and storage density.

The utility model discloses a copper core aerial cable which comprises a soft copper core conductor, a conductor wrapping layer, a conductor shielding layer, an insulating layer and an outer sheath layer, and the conductor wrapping layer, the conductor shielding layer, the insulating layer and the outer sheath layer are sequentially wrapped outside the soft copper core conductor from inside to outside. The soft copper core conductor comprises a plurality of strands, the plurality of strands are twisted to form the soft copper core conductor, the strands comprise a plurality of soft copper single wires, the plurality of soft copper single wires are twisted to form the soft copper single wires, and gaps among the strands are filled with water-blocking paste. The copper core aerial cable provided by the utility model has the performances of good flexibility, small resistance and the like, and solves the problems of poor bending performance, large conductor loss, high construction cost, large construction difficulty and the like in the use process of the conventional aerial insulated cable.

The utility model discloses a wire outlet structure of a high-power motor, which belongs to the technical field of motors and comprises a stator core and a base, the stator core is sleeved inside the base in a hot mode, two sides of the stator core are fastened by a stator pressing ring I and a stator pressing ring II, and an effective edge of a stator coil is embedded in a stator core groove. Conducting rings are arranged at the extending ends of the stator coils, interelectrode connection points of U-phase rings, V-phase rings, W-phase rings and N-phase rings of the conducting rings are connected with collecting rings, the conducting rings connected in parallel are tightly plugged through industrial felt and then are firmly wound and fixed on conducting ring fixing seats through alkali-free glass fiber tapes, and a plurality of conducting ring fixing seats which are evenly distributed are installed on the end face of a stator pressing ring I; the conducting ring is fixedly connected to the conducting ring fixing seat, and the conducting ring fixing seat is arranged in the machine base. The utility model has the advantages that the internal space of the motor is compact, the wiring is flexible, the space is reserved between the conducting rings, the internal air duct wind resistance of the motor is reduced, and the phenomena of inter-turn short circuit, heating and the like of inter-electrode wiring points are avoided.