Lihan Thermoacoustic Technologies (Shen Zhen) Co., Ltd.

Lihan Cryogenics Co., Ltd.

Shenzhen Yifang Digital Technologies Co., Ltd.

Lihan Cryogenics Co., Ltd., Shenzhen (Cn)

Haibing Li

Jianying Hu

Zhanghua Wu

Guoyao Yu

Ercang Luo

Bin Wang

Wei Dai

Zhaohui Yang

Yibing Zhang

Shengli Huang

A cryocooler includes a shell, a compression unit, an expansion unit and a vibration damping unit, where a cavity is provided in the shell; the compression unit and the vibration damping unit are located in the cavity; the compression unit is connected to the shell; the expansion unit is partially located in the cavity and communicates with the compression unit; the vibration damping unit is sleeved on the compression unit and is partially located in the compression unit and is configured to reduce vibration of the compression unit. The cryocooler has a relatively compact structure, relatively small size and relatively small weight.

Cryocooler

The present invention provides a multi-stage double-acting traveling-wave thermoacoustic system, comprising three elementary units, each elementary unit comprises a linear motor and a thermoacoustic conversion device; the linear motor comprises a piston and a cylinder, the piston can perform a straight reciprocating motion in the cylinder; each thermoacoustic conversion device comprises a main heat exchanger and a heat regenerator connected in sequence, and the heat regenerator is of a ladder structure; a set of a non-normal-temperature heat exchanger, a thermal buffer tube and an auxiliary heat exchanger is connected at each ladder of the heat regenerator; and the main heat exchanger and the auxiliary heat exchanger of each thermoacoustic conversion device are connected to cylinder cavities of different linear motors respectively forming a loop structure for flow of a gas medium. The multi-stage double-acting traveling-wave thermoacoustic system can improve the working performance of the multi-stage double-acting traveling-wave thermoacoustic system.

Multi-stage double-acting traveling-wave thermoacoustic system

The present invention discloses a heat-actuated double-acting traveling-wave thermoacoustic refrigeration system, comprising at least three elementary units; each elementary unit comprises a thermoacoustic engine, a thermoacoustic refrigerator, and a resonance device; the thermoacoustic engine and the thermoacoustic refrigerator comprise a main heat exchanger, a heat regenerator, a non-normal-temperature heat exchanger, a thermal buffer tube, and an auxiliary heat exchanger connected in sequence; the resonance device comprises a sealed housing, a moving part is provided in the housing for a reciprocating motion; the moving part separates the housing into at least two chambers; the main heat exchanger and auxiliary heat exchanger of each thermoacoustic engine and thermoacoustic refrigerator respectively connects to chambers of different housing, forming dual-loop structure of gas medium flow. In heating the non-normal-temperature heat exchanger of the thermoacoustic engine to produce acoustic power, thermoacoustic energy conversion is induced inside the thermoacoustic engine and the thermoacoustic refrigerator.

Heat-actuated double-acting traveling-wave thermoacoustic refrigeration system

Car FM modulator with USB host digital audio player

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Shenzhen, China

Haibing Li