Abstract

The disclosure provides a vibration isolation structure for linear oscillating motor and Stirling engine, wherein the said vibration isolation structure comprises a first vibration isolation device and a second vibration isolation device. The first vibration isolation device is set between the fixed hood and the housing of the linear oscillating motor to attenuate the high-frequency and small-amplitude vibrations from the linear oscillating motor. The first vibration isolation device comprises a first set of tension springs and a second set of tension springs, and a lateral gap is formed between the fixed hood and the linear oscillating motor. The second vibration isolation device is set in the said lateral gap to attenuate the low-frequency and large-amplitude vibrations from the linear oscillating motor. The second vibration isolation device comprises at least two sets of position-limiting protrusions and position-limiting blocks, and the position-limiting protrusion and position-limiting block are set in a match at the linear oscillating motor and the fixed hood respectively or reversely. Also disclosed is a Stirling engine assembled with a linear oscillating motor that comprising with an aforementioned vibration isolation structure. The vibration isolation structure improves the stability of the reciprocating linear oscillating motor and the Stirling engine, and reduces mechanical vibrations and noises.

IPC Classes  ?

• F02G 1/053 - Component parts or details
• H02K 5/24 - CasingsEnclosuresSupports specially adapted for suppression or reduction of noise or vibrations
• F16F 15/06 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with metal springs
• F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
• F25D 23/00 - General constructional features

Abstract

A vibration isolation structure of a linear oscillatory motor comprises a first vibration isolation device (3) and a second vibration isolation device (4). The first vibration isolation device comprises a set of springs (31, 32) suspending a linear oscillatory motor (2) from the interior of a fixed hood (1) and forming a lateral gap between the linear oscillatory motor and the fixed hood. The second vibration isolation device comprises a position-limiting protrusion (42) and a position-limiting block (41) respectively provided at the linear oscillatory motor and the fixed hood. The vibration isolation structure improves stability of a linear oscillatory motor and reduces vibration and noise. Also disclosed is a Stirling engine having the linear oscillatory motor.

IPC Classes  ?

• F28D 11/00 - Heat-exchange apparatus employing moving conduits