Switching power supply voltage stabilizing device

The utility model relates to the technical field of power supply voltage stabilization, and discloses a switching power supply voltage stabilization device, which comprises a voltage stabilization device, and the voltage stabilization device comprises a shell, a power supply voltage stabilizer, a base, a heat dissipation plate, a fan, heat dissipation fins, an output connector, a buckle, a sleeve, a threaded cylinder and a brush. According to the switching power supply voltage stabilizing device, through the installation sleeve, the brush, the threaded cylinder and the buckle, when an electric wire is inserted into the output connecting port, a connector of the electric wire passes through the brush, dust on the surface can be cleaned when the connector is inserted into the output connecting port, then the buckle is lifted through the connecting rod on the top face of the buckle, insertion of the connector cannot be affected by the buckle, and therefore the power supply is more stable. When the connector is i