CN220416095U

CN220416095U - Shock-absorbing structure of matched sample table of GM refrigerator for scientific research

Info

Publication number: CN220416095U
Application number: CN202321634427.8U
Authority: CN
Inventors: 蔡颖锐
Original assignee: Wuhan Chongguang Technology Co ltd
Current assignee: Wuhan Chongguang Technology Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2024-01-30
Anticipated expiration: 2033-06-26

Abstract

The utility model provides a damping structure of a matched sample table of a GM refrigerator for scientific research, which comprises a GM refrigerator primary cold head and an inner shielding cover, wherein the top of the GM refrigerator primary cold head is connected with a GM refrigerator secondary cold head, the top of the GM refrigerator secondary cold head is connected with the inner shielding cover, the inside of the inner shielding cover is connected with the sample table, a secondary heat conduction belt is connected between the sample table and the GM refrigerator secondary cold head, a primary heat conduction belt is connected between the inner shielding cover and the GM refrigerator primary cold head, and corrugated pipes are sleeved on the outer walls of the GM refrigerator primary cold head and the GM refrigerator secondary cold head. According to the utility model, through the mutual matching among the secondary heat conduction belt, the primary heat conduction belt and the corrugated pipe, the cooling of the inner shielding cover and the sample table can be realized, and the vibration on the base of the refrigerator can be isolated through the flexibility of the secondary heat conduction belt and the primary heat conduction belt, so that the vibration prevention of the sample is realized.

Description

Shock-absorbing structure of matched sample table of GM refrigerator for scientific research

Technical Field

The utility model belongs to the field of GM refrigerators, and particularly relates to a damping structure of a matched sample table of a GM refrigerator for scientific research.

Background

The GM refrigerator is a main means for acquiring a liquid helium low-temperature region in scientific research experiments; however, GM refrigerators often create vibration problems of the sample during observation due to the presence of mechanical moving parts; such sample vibration is not allowed in many scientific experiments, such as fluorescent screen scanning imaging of confocal microscopes, etc.; it is therefore necessary to reduce or even eliminate the vibration phenomena of the sample caused by the working vibrations of GM refrigerators.

In summary, the present utility model provides a damping structure for a sample stage of a GM refrigerator for scientific research, which has a very obvious damping effect, so as to solve the above problems.

Disclosure of Invention

The utility model aims to provide a damping structure of a matched sample table of a GM refrigerator for scientific research, so as to solve the problems in the background technology;

in order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a shock-absorbing structure of supporting sample platform of GM refrigerator of scientific research usage, includes GM refrigerator one-level cold head and interior shield cover, the top of GM refrigerator one-level cold head is connected with GM refrigerator second grade cold head, the top of GM refrigerator second grade cold head is connected with interior shield cover, the internally connected of interior shield cover has the sample platform, be connected with the second grade heat conduction area between sample platform and the GM refrigerator second grade cold head, be connected with the first grade heat conduction area between interior shield cover and the GM refrigerator one-level cold head, the bellows has been cup jointed with the outer wall of GM refrigerator one-level cold head and GM refrigerator second grade cold head.

Preferably, the refrigerating capacity of the primary cold head of the GM refrigerator is 3W45K.

Preferably, the refrigerating capacity of the secondary cold head of the GM refrigerator is 0.18W4.2K.

Preferably, the primary heat conducting belt and the secondary heat conducting belt are made of flexible copper materials.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the mutual matching among the secondary heat conduction belt, the primary heat conduction belt and the corrugated pipe, the cooling of the inner shielding cover and the sample table can be realized, and the vibration on the base of the refrigerator can be isolated through the flexibility of the secondary heat conduction belt and the primary heat conduction belt, so that the vibration prevention of the sample is realized.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

fig. 2 is an enlarged schematic view of the structure of the present utility model at a.

In the figure: 1. first-stage cold head of GM refrigerator; 2. GM refrigerator second stage cold head; 3. a sample stage; 4. a secondary heat conduction belt; 5. an inner shield; 6. a primary heat conduction belt; 7. a bellows.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

As shown in figures 1-2, the utility model provides a shock absorption structure of a matched sample table of a GM refrigerator for scientific research, which comprises a GM refrigerator primary cold head 1 and an inner shielding cover 5, wherein the top of the GM refrigerator primary cold head 1 is connected with a GM refrigerator secondary cold head 2, the refrigerating capacity of the GM refrigerator primary cold head 1 is 3W45K, the refrigerating capacity of the GM refrigerator secondary cold head 2 is 0.18W4.2K, the top of the GM refrigerator secondary cold head 2 is connected with the inner shielding cover 5, the inner shielding cover 5 is internally connected with a sample table 3, a secondary heat conduction belt 4 is connected between the sample table 3 and the GM refrigerator secondary cold head 2, the secondary heat conduction belt 4 is used for cooling the sample table 3, therefore, a sample placed on the sample table 3 can be cooled to a low-temperature environment required by an experiment, a first-stage heat conduction belt 6 is connected between the inner shielding cover 5 and the first-stage cold head 1 of the GM refrigerator, the inner shielding cover 5 can be cooled to 40K by utilizing the first-stage heat conduction belt 6, the first-stage heat conduction belt 6 and the second-stage heat conduction belt 4 are made of flexible copper materials, copper has good heat conductivity and ductility, vibration on a base of the refrigerator can be counteracted, loss of heat transfer can be reduced, power consumption is reduced, bellows 7 are sleeved on the outer walls of the first-stage cold head 1 of the GM refrigerator and the second-stage cold head 2 of the GM refrigerator, and vibration on the base of the refrigerator can be counteracted effectively through extension lines of the bellows 7.

When the damping structure of the matched sample table of the GM refrigerator for scientific research is used, low temperature is generated through the GM refrigerator, temperature transmission is carried out through the primary cold head 1 of the GM refrigerator and the secondary cold head 2 of the GM refrigerator, and the inner shielding cover 5 and the sample table 3 are cooled respectively, so that the sample table 3 is cooled to a low-temperature environment required by experiments, and experimental operation is convenient.

The embodiments of the present utility model have been shown and described for the purpose of illustration and description, it being understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made therein by one of ordinary skill in the art without departing from the scope of the utility model.

Claims

1. The utility model provides a shock-absorbing structure of supporting sample platform of GM refrigerator of scientific research usefulness, includes GM refrigerator one-level cold head (1) and interior shield cover (5), its characterized in that: the utility model discloses a GM refrigerator, including GM refrigerator primary cold head (1), GM refrigerator secondary cold head (2), the top of GM refrigerator secondary cold head (2) is connected with interior shield cover (5), the internal connection of interior shield cover (5) has sample platform (3), be connected with second grade heat conduction area (4) between sample platform (3) and GM refrigerator secondary cold head (2), be connected with one-level heat conduction area (6) between interior shield cover (5) and GM refrigerator primary cold head (1), bellows (7) have been cup jointed with the outer wall of GM refrigerator primary cold head (1) and GM refrigerator secondary cold head (2).

2. The shock absorbing structure of a sample stand of a GM refrigerator for scientific research as set forth in claim 1, wherein: the refrigerating capacity of the primary cold head (1) of the GM refrigerator is 3W45K.

3. The shock absorbing structure of a sample stand of a GM refrigerator for scientific research as set forth in claim 1, wherein: the refrigerating capacity of the secondary cold head (2) of the GM refrigerator is 0.18W4.2K.

4. The shock absorbing structure of a sample stand of a GM refrigerator for scientific research as set forth in claim 1, wherein: the primary heat conduction belt (6) and the secondary heat conduction belt (4) are made of flexible copper materials.