Abstract: The present invention relates to a compressor and, more specifically, to an air compressor for a vehicle, which can support a rotor disk and form a cooling flow channel by a first cover and a second cover, and thus can improve cooling efficiency while increasing manufacturability.

Abstract: The present invention relates to an air foil journal bearing in which air is introduced between a foil and a rotor rotating at high speed and generates pressure to support a radial load of the rotor and allow the rotor to rotate smoothly, and more particularly, to a housing fixing structure of an air foil journal bearing that improves durability against external impact or vibration by restricting an axial movement of a bump by means of two opposite ends of the bump and a top foil fixing portion.

Abstract: The present disclosure relates to a Real Time Clock (RTC) battery charge/discharge system, a charge/discharge control method, and a notebook RTC power supply method of a notebook used for date and time synchronization of an RTC of a notebook computer.

Abstract: The present disclosure relates to a Real Time Clock (RTC) battery charge/discharge system, a charge/discharge control method, and a notebook RTC power supply method of a notebook used for date and time synchronization of an RTC of a notebook computer.

Abstract: A connecting structure for a secondary battery for electrically connecting a core pack where two or more unit cells are electrically connected and a protection circuit module made of the unit cells of the core pack and a PCB substrate. The connecting structure includes a metal plate having an electrode connecting unit connected to an electrode of each unit cell of the core pack and a circuit connecting unit connected to the protection circuit module; and a circuit terminal unit electrically connected to the circuit connecting unit by being located in a connection hole formed in the PCB substrate of the protection circuit module so that the upper and lower portions of the PCB substrate communicate with each other. The circuit connecting unit is coupled and electrically connected to the circuit terminal unit by means of a connection method which allows selective connection and separation.

Abstract: Disclosed is a connecting structure for a secondary battery and a secondary battery pack including the same. The connecting structure for a secondary battery electrically connects a core pack where two or more unit cells are electrically connected and a protection circuit module made of the unit cells of the core pack and a PCB substrate. The connecting structure includes a metal plate having an electrode connecting unit connected to an electrode of each unit cell of the core pack and a circuit connecting unit connected to the protection circuit module, and a circuit terminal unit electrically connected to the circuit connecting unit by being located in a connection hole formed in the PCB substrate of the protection circuit module so that the upper and lower portions of the PCB substrate communicate with each other, wherein the circuit connecting unit is electrically connected to the circuit terminal unit by means of a physical connection method which allows selective connection and separation.