39results about How to "Avoid short circuit burning" patented technology

The invention discloses a reed leaf cooking and drying device with a function of reed leaf damage prevention. The reed leaf cooking and drying device comprises an outer shell, supporting legs are arranged on the front side of the lower end of the outer shell, casters are connected to the rear side of the lower end of the outer shell, the front lateral side of the outer shell is provided with a drain groove, and a controller is mounted on the front lateral side of the outer shell. The rear lateral side of the outer shell is connected with a pull rod through a reset rotating shaft, a rainproof canopy is arranged at the upper end of the outer shell, the inner and outer walls of the outer shell are connected through a first connecting shaft, and the outer end of the first connecting shaft penetrates the outer wall of the outer shell to connect with a rotating disk. The reed leaf cooking and drying device is convenient for workers to move and convenient to discharge water drops formed by condensation of hot and humid air, continuous reed leaf drying is facilitated, residual water drops in the device are avoided, reed leaves can be placed separately conveniently, and accordingly reed leaf drying efficiency can be improved while reed leaf damages caused by reed leaf stacking can be prevented.

The invention relates to a power MOSFET with a Miller clamp function, belonging to the technical field of power semiconductor devices. A power MOSFET (insulated gate field effect transistor) with a Miller clamp function of the present invention can discharge the charging and discharging current on the Miller capacitor to the source through a monolithically integrated BJT (bipolar transistor) and Only a small amount of gate-source voltage drop is generated, which effectively reduces the risk of false turn-on of the power MOSFET caused by charging and discharging the Miller capacitor, and greatly improves the short-circuit robustness of the device.

The invention provides a multifunctional mainboard module support, an electric appliance box with the same, and an air conditioner. The multifunctional mainboard module support is used for the electric appliance box. At least one clamping buckle and at least one spigot are arranged on the front surface of the multifunctional main board module support; at least one heating element accommodating groove is formed in the back surface of the multifunctional mainboard module support; each heating element accommodating groove is provided with a flange; through holes corresponding to an electric appliance box mainboard are formed in each clamping buckle and each spigot respectively; the multifunctional mainboard module support is connected with the electric appliance box mainboard in a buckled mode; and after screws penetrate through the through holes of the multifunctional mainboard module support, the electric appliance box mainboard can be connected with a radiator. The heat dissipation ofheating elements can be facilitated, and meanwhile, production is facilitated; the utilization rate of the mainboard can be increased, and board arrangement and wiring are facilitated; insects and other animals can be prevented from climbing to the back surface of the electric appliance box mainboard from the front surface of the mainboard, so that insect prevention is achieved; and the short-circuiting fault and burnout of the electric appliance box mainboard which are caused by the condition that insects climb to pins on the back surface of the mainboard can be avoided.