Device and method for testing vibration noise of cooling fan monomer

The invention relates to the technical field of energy-saving electric appliance testing, in particular to a cooling fan monomer vibration noise testing device and method.The device comprises a base, a control box and a testboard, the control box and the testboard are arranged on the base, and the testboard is located on the front face of the control box and used for placing a cooling fan; a laser vibration sensor and a pressing rod are arranged on the front face of the control box in a liftable mode and located above the testing table, a lead screw mechanism and a driving assembly are further arranged on the front face of the control box, the driving assembly is in transmission connection with the lead screw mechanism, and the lead screw mechanism is in transmission connection with the laser vibration sensor and the pressing rod. According to the invention, the risk that the cooling fan collides with the laser vibration sensor due to taking and placing can be reduced before and after the vibration noise of t