Component for reducing order noise of vehicle cooling fan

Abstract

The invention relates to the field of vehicle cooling fans, in particular to a component for reducing order noise of a vehicle cooling fan. The component comprises a frame, a motor and blades, wherein multiple reinforcing ribs are arranged on the frame; a round hole is formed in the frame; a motor mounting ring is arranged in the round hole; the motor mounting ring and the frame are connected through support ribs; the support ribs are aslant arranged, and are consistent with the blades in inclined directions; and the motor and the frame are connected through three mounting pins. The component for reducing the order noise of the vehicle cooling fan adjusts motor magnetic shoe pole shoe parameters, effectively reduces the influence of electromagnetic factors in the order noise, can effectively reduce the resonance of the motor in a shock excitation mode through the adjustment of the motor shell mounting bracket, adjusts the strength structure of the blades and retainer rings, fits the structural design of the frame to fully inhibit the transfer of 20 and 40-order vibration in the shock excitation mode, is obvious in effect, realizes the volume production, and satisfies the finished vehicle requirements.

Description

technical field [0001] The invention relates to the field of automobile radiator fans, in particular to a component for reducing the order noise of the automobile radiator fan. Background technique [0002] The car cooling fan is mainly used for engine heat dissipation and coolant heat dissipation to ensure that the engine will not malfunction due to high temperature. Automobile engines must be properly cooled in high-temperature working environments to keep them working at a suitable temperature in order to meet the requirements of good engine performance, durability and exhaust emissions. The engine cooling system plays a key role here; it mainly includes components such as cooling fans, water tanks, and thermostats. [0003] Existing conventional cooling fans have many shortcomings and deficiencies in structure and assembly methods, and at the same time, they are reflected in the NVH test of the whole vehicle at different levels, which have a significant impact on the NV...

AI Technical Summary

Problems solved by technology

[0003] The existing conventional cooling fans have many shortcomings and deficiencies in the structure and assembly method, and at the same time, they are reflected in the NVH test of the whole vehicle at different levels, which have a significant impact on the NVH effect of the whole vehicle, such as the magnetic tile of the motor Due to the natural mode change of the casing, the structural strength of the fan blade and the outer ring under dynamic twisting resonance conduction, and the resonance conduction of the fan assembly frame, it is difficult to control the product order noise, which directly affects the overall vehicle effect.

Images