Abstract: A linear actuator includes a base having a positioning post and a motor fixed on one side of the base. A spindle positioning means includes a spindle, a seat and a fixing element. The spindle protrudes from the motor and penetrates the base. One side of the spindle away from the motor is formed with a free end. The seat includes a cylinder and an extension plate protruding outwards from the periphery of the cylinder. The extension plate is provided with a trough. The cylinder is connected to the free end of the spindle. The trough of the extension plate is located to correspond to the positioning post. The fixing element passes through the trough to fix the seat on the positioning post. Via this arrangement, the breakage of the spindle caused by a lateral force can be prevented efficiently.

Abstract: A server module includes a tray, a motherboard installed in the tray, and at least one storage device. The tray includes a port erected from a rear end of the tray, a roomage inwardly and concavely disposed on an edge of the motherboard and proximate to the port, and a socket disposed at an edge of the roomage and opposite to the port for connecting the insert roomage of the storage device, such that the storage device is disposed onto the roomage of the motherboard, and the motherboard can be used for expanding the storage device directly.

Abstract: An industrial computer chassis structure is mainly to partition at least two motherboard sections in the shell of the computer chassis, in each of which a motherboard tray capable of being pulled and drawn is arranged and is provided for placing a motherboard therein. Meanwhile, the two motherboard sections are horizontally disposed by being parallel with each other, in the space between which a power source arrangement section is formed. The power source arrangement section is provided for arranging power supplies of the computer therein. Through this kind of disposition structure, all motherboards in the motherboard sections can be close to the power source arrangement section as near as possible, such that a function of common usage can be achieved for both the hardware connection and the software system control.

Abstract: A power disconnection apparatus includes a soft-shell Li ion battery and a power disconnection device. The soft-shell Li ion battery includes anode pin and a cathode pin and a soft shell enclosing the soft-shell Li ion battery. The power disconnection device includes a panel attaching to the surface of the shell of the soft-shell Li ion battery and a separation unit arranged at topside of the panel and corresponding to one of the anode pin and the cathode pin. The shell has expansion when the soft-shell Li ion battery is over-charged and the panel is move away from the soft-shell Li ion battery. Therefore, the separation unit disconnects power to the anode pin or the cathode pin.