Abstract: An assembled cabinet and power connection boards thereof, in which side board assemblies of the assembled cabinet are stacked in a way that upper power connectors of a power connection board of a lower side board assembly among two adjacent stacked up side board assemblies are electrically connected with lower power connectors of a power connection board of the an upper side board assembly among the two adjacent stacked up side board assemblies, so as to preserve the versatility and flexibility of the installation of the assembled cabinet while allowing stable power supply to the electronic locks of the assembled cabinet.

Abstract: An electronic lock for an assembled cabinet, including a lock shell, a locking and unlocking assembly mounted on the lock shell, an electronic driving device, a wireless communication device, a control circuit board, and a power supply. The control circuit board is electrically connected to the electronic driving device, the wireless communication device, and the power supply. The electronic driving device transmits motion to the locking and unlocking assembly. The electronic lock is adaptable to free combination of an assembled cabinet to provide easy installation and convenient use.

Abstract: The present disclosure provides a frequency converter. The frequency converter includes a box body and a bottom box. A bottom portion of the box body is fixedly connected with a top portion of the bottom box. A top portion of a left side of the box body and a bottom portion of the left side of the box body are fixedly connected to a respective fan. A top portion of a left side of an inner wall of the box body and a top portion of the left side of the inner wall of the box body are fixedly connected to a respective annular plate. One end of an output shaft of each fan is fixedly connected to a rotating rod. One end of each rotating rod away from the fan passes through the box body and extends to an interior of the box body.

Abstract: A frequency converter module includes a frequency control management module. An input port of the frequency conversion control management module is electrically connected to an input port of a power supply module. The power accuracy monitoring module includes an initial power measuring module, a power prediction correction module, and an actual power display storage module. An output port of the initial power measuring module is electrically connected to an input port of the power prediction correction module. An output port of the power prediction correction module is electrically connected to an input port of the actual power display storage module.

Abstract: An electronic cabinet lock includes a lock housing, a lock body, a limiting member, a motor, and a main control board. The lock body and the limiting member are rotatably disposed in the lock housing, respectively. The motor is electrically connected to the main control board. The limiting member is driven by the motor through a transmission mechanism. The transmission mechanism includes a screw rod driven by the motor and a slider threadedly connected to the screw rod. The slider is slidably disposed in the lock housing, and is movably connected to the limiting member. The transmission mechanism has few components, which is a simple structure and convenient for assembly.

Abstract: Disclosed herein are multi-source microgrid power supply systems including a rectifier having an incoming line terminal connected to a low-voltage side of a transformer and an outgoing line terminal connected to a DC bus having one terminal connected to the outgoing line terminal of the rectifier, an inverter having an incoming line terminal connected to the DC bus and an outgoing line terminal connected to oil well equipment, a first voltage regulator having an incoming line terminal connected to a photovoltaic array and an outgoing line terminal connected to the DC bus, a second voltage regulator having an incoming line terminal connected to an energy storage unit and an outgoing line terminal connected to the DC bus, and a third voltage regulator having an incoming line terminal connected to a wind power generation unit and an outgoing line terminal connected to the DC bus.

Abstract: A frequency converter module includes a frequency control management module. An input port of the frequency conversion control management module is electrically connected to an input port of a power supply module. The power accuracy monitoring module includes an initial power measuring module, a power prediction correction module, and an actual power display storage module. An output port of the initial power measuring module is electrically connected to an input port of the power prediction correction module. An output port of the power prediction correction module is electrically connected to an input port of the actual power display storage module.

Abstract: The present disclosure provides a frequency converter. The frequency converter includes a box body and a bottom box. A bottom portion of the box body is fixedly connected with a top portion of the bottom box. A top portion of a left side of the box body and a bottom portion of the left side of the box body are fixedly connected to a respective fan. A top portion of a left side of an inner wall of the box body and a top portion of the left side of the inner wall of the box body are fixedly connected to a respective annular plate. One end of an output shaft of each fan is fixedly connected to a rotating rod. One end of each rotating rod away from the fan passes through the box body and extends to an interior of the box body.

Abstract: An electronic cabinet lock includes a lock housing, a lock body, a limiting member, a motor, and a main control board. The lock body and the limiting member are rotatably disposed in the lock housing, respectively. The motor is electrically connected to the main control board. The limiting member is driven by the motor through a transmission mechanism. The transmission mechanism includes a screw rod driven by the motor and a slider threadedly connected to the screw rod. The slider is slidably disposed in the lock housing, and is movably connected to the limiting member. The transmission mechanism has few components, which is a simple structure and convenient for assembly.