Inertial mass type vibration isolation device

Abstract

The invention provides an inertial mass type vibration isolating device, which consists of a magnetic-leakage preventing shell, an upper cover, an inertial mass type electromagnetic actuator and an acceleration sensor, wherein the inertial mass type electromagnetic actuator is arranged in the magnetic-leakage preventing shell and is fixed with a base through a stainless steel bolt; the acceleration sensor is arranged on the base; a signal output end of the acceleration sensor is connected with a controller; a coil of the inertial mass type electromagnetic actuator is connected with a power amplifier through a conductor; and the power amplifier is connected with the controller. The inertial mass type electromagnetic actuator consists of an inner-ring framework, the coil, a spring piece and an outer-ring permanent magnet; the outer-ring permanent magnet is arranged outside the inner-ring framework; the coil is wound on the inner-ring framework; a clearance is reserved between the outer-ring permanent magnet and the coil; and one end of the spring piece is connected with the upper end of the inner-ring framework, and the other end of the spring piece is connected with the upper end of the outer-ring permanent magnet. The controller analyzes the vibration quantity of a body shell, and then the outer-ring permanent magnet is driven to vibrate through the electromagnetic coil, so as to counteract the vibration quantity of the body shell.

Description

Technical field: [0001] The invention relates to the field of automobiles, in particular to an automobile engine vibration isolation device, in particular to an inertial mass type vibration isolation device. Background technique: [0002] The engine is the main source of vibration in the car. The vibration of the engine itself cannot be completely eliminated. Installing an engine vibration isolation device between the engine and the body shell is the most effective way to isolate vibration transmission, which can reduce the vibration and noise of the body sheet metal parts and chassis-related parts, and maximize Control the vibration and noise inside the car, thereby significantly improving the durability, ride comfort and service life of the car. There are two types of vibration isolation devices: passive isolation and active and passive isolation. The passive vibration isolation device is a rubber vibration isolator, hydraulic damping vibration isolator and other devices...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of inertial mass type vibration isolation device, the described inertial mass type vibration isolation device should solve the problem that the engine vibration isolation device in the prior art can not isolate low frequency vibration, can not suppress the body shell resonance, drive voltage Technical problems of high and poor impact resistance

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