Split type Stirling refrigerating machine

A refrigerator, a separate technology, used in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of the decline of the refrigeration capacity of the refrigerator, the failure of the refrigerator, and the failure, so as to improve the service life and reliability, improve the radial The effect of positioning ability and simple structure

CN101551176AInactive Publication Date: 2009-10-07CHINA ELECTRONICS TECH GROUP CORP NO 16 INST
0 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2009-10-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention discloses a split type Stirling refrigerating machine, for principally resolving the existing deficiency of service lifetime and reliability of the machine in the existent technology. In a compressor of the invention, two compression pistons with a same shaft line is driven by two linear motors, wherein the two linear motor are arranged symmetrically, and the two pistons move oppositely; the linear motors are moving magnetic type linear motors and have double voice coils structure; the compression piston is supported by two sets of diaphragm springs with a small quality and a long lifetime, and a non-contact clearance seal structure is employed between the piston and an air cylinder; an decompressor employs a ejector structure with a small quality, and is supported by a cylinder spring and is driven pneumatically; an air cylinder of the decompressor is formed by laser welding a rustless steel thin wall cylinder block of a through hole and a rustless steel air cylinder bulkhead. The refrigerating machine of the invention is principally used for infrared systems to provide a low-temperature cold source for infrared devices, wherein the longevity and the reliability of the refrigerating machine are improved greatly by more than 20, 000 hours; at the same time the refrigerating machine keeps the advantage of small volume and weight, and simple structure, and the weight is no more than 2kg.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a split-type Stirling refrigerator, which belongs to the technical field of refrigeration and low temperature, and specifically refers to a small-volume, light-weight, long-life and reliable refrigerator that is used in an infrared system to provide a low-temperature cold source for an infrared device. High split Stirling refrigerator. Background technique

[0002] The Stirling refrigerator is a gas regenerative closed-cycle refrigerator that works according to the reverse Stirling cycle. Since the Philips Laboratory in the Netherlands developed a practical Stirling refrigerator in 1954, the Stirling refrigerator has experienced half a cycle. With the development of the century, the structural form has developed from the integral type to the split type; the driving mode has evolved from the rotary motor drive to the linear motor drive. The research on split Stirling refrigerators really started after the 1970s.

[0003] The s...

Examples

Embodiment Construction

[0018] In order to better understand the technical solution of the present invention, the specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings:

[0019] Such as figure 1 , separated by the metal hose connecting pipe 26, the lower part is the compressor, and the upper part is the expander.

[0020] The compressor includes moving magnet linear motor, diaphragm spring, compression piston, compression cylinder, compressor end cover and other components.

[0021] The moving magnet linear motor includes a magnetic steel 13 , an inner magnetic pole 9 , a mover support 8 , an outer magnetic pole 14 , a coil support 6 and a coil 12 . The magnetic steel 13 is two sets of magnetic steel components with opposite polarities. Each set of magnetic steel components is composed of 12 pieces of tile-shaped magnetic steel. The magnetic steel 13 is fixed on the outer surface of the inner magnetic pole 9 with glue, and the i...