Abstract: The invention discloses a swinging brake of electric nail gun for restraining a striker to return to a standard position after shooting the nail. The swinging brake is elastically pivoted on a swing seat of a gun frame, and is extended to form a braking end. The braking end can butt a stopping part on the gun frame when a power flywheel driven by the swing seat is at an idle position, so as to restrain the striker that has returned to the standard position. The braking end can also be driven by the swing seat to leave the stopping part when the power flywheel swings to a transmission position, so that the striker can be released from the standard position to slide along the nailing axial direction to shoot the nail. In this way, the striker in an electric nail gun configured with a swinging power flywheel is improved to accurately return to the standard position after nailing.

Abstract: A return transmission of nailing rod for electric nail gun is disclosed, comprising a pulley assembly and a return elastic component configured in a gun body frame. The pulley assembly includes a towing rope, a movable pulley that guides the towing rope. A guiding holder is provided for pivoting the movable pulley. When the nailing rod moves downward along a nailing stroke to shoot the nail, the towing rope can tow the movable pulley and drive the guiding holder to move an action stroke in a way to store the elastic potential energy of the return elastic component. After nailing, the return elastic component will drive the guiding holder in a way to release the elastic potential energy, so that the guiding holder can move along the action stroke back to its original position, and the guiding holder will tow the towing rope through the movable pulley, so as to drive the nailing rod to move along the nailing stroke back to its original position.

Abstract: A light emitting diode (LED) device having a humidity sensor includes an LED portion, a humidity sensor and an external device. This LED portion has a base, a boning layer, an LED chip, and a sealing portion. The LED ship is adhered on the base by the bonding layer. The sealing portion encloses the LED chip. This humidity sensor has a transmission element. This humidity sensor is to detect humidity condition in the LED portion. The external device is to monitor humidity condition and variation in the LED portion. It can monitor the internal condition in the LED portion and is possible to detect both the temperature and humidity simultaneously.

Abstract: A light emitting diode (LED) device having a humidity sensor includes an LED portion, a humidity sensor and an external device. This LED portion has a base, a boning layer, an LED chip, and a sealing portion. The LED ship is adhered on the base by the bonding layer. The sealing portion encloses the LED chip. This humidity sensor has a transmission element. This humidity sensor is to detect humidity condition in the LED portion. The external device is to monitor humidity condition and variation in the LED portion. It can monitor the internal condition in the LED portion and is possible to detect both the temperature and humidity simultaneously.

Abstract: A heat pipe includes a hollow envelope, a wick bonded to an inner wall of the envelope, and a working fluid contained in a chamber inside the envelope. The wick is formed of sintering a plurality of first particles, which are made from copper, and a plurality of second particles, which are made from a material selected from the group consisting of silver, bismuth, indium, tin, and alloys thereof, together.