Stirling refrigerator based on built-in vibration reduction structure

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a Stirling cryocooler based on a built-in vibration reduction structure, which comprises a Stirling cryocooler, the outer side of the Stirling cryocooler is fixedly connected with a plurality of fixing shells, the interiors of the fixing shells are fixedly connected with springs I, one end of each spring I is fixedly connected with a sliding block, and the other end of each spring I is fixedly connected with a damping device. A limiting plate is rotatably connected to the interior of the fixing shell, a driving plate is slidably connected to the interior of the fixing shell, a connecting plate is slidably connected to the bottom of a sliding block, a damping mechanism used for damping parts is fixedly connected to the interior of the Stirling cryocooler, and the damping mechanism comprises two fixing plates. According to the utility model, tools do not need to be found and used, the time for preparing the tools is saved, the operation can be quickly completed, the device is particularly suitable for time-urgent working scenes, such as emergency maintenance, quick equipment replacement and the like, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a Stirling refrigeration machine based on a built-in vibration damping structure. Background Technology

[0002] The Stirling refrigerator, invented by Scottish clergyman Robert Stirling, operates based on the Stirling cycle and consists of a compression chamber and other components. It achieves heat transfer and cooling through the compression and expansion of gases. Its applications are widespread, encompassing aerospace, military, scientific research, medical, and industrial fields. It boasts advantages such as high efficiency and energy saving, compact structure, long lifespan, low noise, and a wide cooling temperature range. The Stirling refrigerator requires a built-in vibration damping structure because the reciprocating motion of its internal moving parts generates vibrations during operation. These vibrations not only affect cooling performance, interfere with surrounding equipment and the environment, and accelerate component fatigue damage, but also compromise the stability and reliability of the equipment. Furthermore, they are difficult to adapt to external vibrations in special application environments and can generate noise pollution. The built-in vibration damping structure effectively solves these problems, reducing vibration impact, extending equipment lifespan, improving stability, adapting to complex environments, and reducing noise.

[0003] A Stirling refrigerator with a built-in vibration damping structure generally consists of a refrigeration cycle component, a vibration damping structure, a shell, and mounting components. The working principle of a Stirling refrigerator with a built-in vibration damping structure is as follows: First, during the compression process, the refrigerant is compressed and heated in the compression chamber, then dissipates heat through the hot-end heat exchanger. Next, during the expansion process, it performs work in the expansion chamber to cool down. Then, during the reheat process, the regenerator stores and transfers the cold energy, improving cycle efficiency. Finally, the low-temperature gas is cooled by the cold-end heat exchanger and re-enters the compression chamber for circulation. Second, the built-in vibration damping structure absorbs vibration energy through damping springs, limits component movement through limiting components, and attenuates vibration amplitude through buffer materials and special connection structures, thereby controlling the overall vibration level to ensure stable operation.

[0004] Existing Stirling refrigerators based on built-in vibration damping structures cannot be disassembled or installed without tools. During maintenance, repair personnel need to find suitable tools to disassemble the refrigerator, which can delay the repair progress due to incomplete or incompatible tools. In case of emergency failure, the refrigerator cannot be opened for inspection in time, resulting in long-term equipment downtime. During installation, if the surrounding space is small and the operation of tools is inconvenient, the refrigerator cannot be installed in the ideal position, affecting its layout and collaborative work with other equipment and reducing the flexibility of use. Therefore, a Stirling refrigerator based on a built-in vibration damping structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a Stirling refrigerator based on a built-in vibration damping structure, which aims to improve the problem that the existing technology cannot disassemble or install the refrigerator without tools.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A Stirling refrigerator based on a built-in vibration damping structure includes a Stirling refrigerator, with multiple fixed shells fixedly connected to the outside of the Stirling refrigerator, a spring fixedly connected inside the fixed shell, a sliding block fixedly connected to one end of the spring, a limiting plate rotatably connected inside the fixed shell, a driving plate slidably connected inside the fixed shell, a connecting plate slidably connected to the bottom of the sliding block, and a vibration damping mechanism for damping the vibration of parts fixedly connected inside the Stirling refrigerator.

[0008] As a further description of the above technical solution:

[0009] The shock absorption mechanism includes two fixed plates. The outer side of one of the fixed plates is fixedly connected to the inside of the Stirling refrigerator. A compression block is fixedly connected to the other side of the fixed plate. A vacuum storage box is slidably connected to the outer side of the compression block. Slide grooves are fixedly connected to both sides of the vacuum storage box. A transmission block is slidably connected inside the slide grooves.

[0010] As a further description of the above technical solution:

[0011] A second spring is fixedly connected inside the fixed shell, and the other end of the second spring is fixedly connected to the outside of the limiting plate;

[0012] As a further description of the above technical solution:

[0013] The connecting plate has a slot inside, and one side of the limiting plate is slidably connected to the inside of the slot;

[0014] As a further description of the above technical solution:

[0015] Both sides of the transmission block are rotatably connected to connecting rods, and the end of the connecting rod away from the transmission block is rotatably connected to the outside of the fixed plate.

[0016] As a further description of the above technical solution:

[0017] A spring three is fixedly connected to the inner side of the connecting rod, and the other end of the spring three is fixedly connected to the outer side of the vacuum storage box;

[0018] As a further description of the above technical solution:

[0019] The Stirling refrigerator has a refrigeration column that is slidably connected inside, and an elastic ring is fixedly connected to the rear side of the refrigeration column.

[0020] As a further description of the above technical solution:

[0021] The outer side of the elastic ring is fixedly connected to the outer side of the fixed plate, and the top of the driving plate is slidably connected to the outer side of the limiting plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by using a fixed shell in conjunction with a spring, a spring in conjunction with a sliding block, a sliding block in conjunction with a limiting plate, and a limiting plate in conjunction with a connecting plate, the Stirling refrigerator can be quickly disassembled or installed without tools. When it is necessary to install or disassemble the Stirling refrigerator, there is no need to find or use tools, saving time in preparing tools and enabling the operation to be completed quickly. It is especially suitable for time-sensitive work scenarios, such as emergency repairs and rapid equipment replacement, greatly improving work efficiency.

[0024] 2. In this utility model, by using a compression block in conjunction with a vacuum storage box, a vacuum storage box in conjunction with a sliding groove, a sliding groove in conjunction with a transmission block, and a transmission block in conjunction with a connecting rod, vibration damping is achieved for the refrigeration column during operation. The refrigeration column will vibrate during operation. Through the vibration damping effect of this series of components, the vibration amplitude can be effectively reduced, so that the refrigeration machine can maintain a more stable state during operation. Stable operation helps to improve the refrigeration effect and working performance of the refrigeration machine and avoids the situation of decreased refrigeration efficiency or unstable refrigeration due to excessive vibration. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the Stirling refrigerator based on the built-in vibration damping structure proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the elastic ring structure of the Stirling refrigerator based on the built-in vibration damping structure proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Stirling refrigerator; 2. Fixed shell; 3. Spring 1; 4. Sliding block; 5. Spring 2; 6. Limiting plate; 7. Driving plate; 8. Connecting plate; 9. Refrigeration column; 10. Elastic ring; 11. Fixed plate; 12. Compression block; 13. Vacuum storage box; 14. Slide groove; 15. Connecting rod; 16. Transmission block; 17. Spring 3. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a Stirling refrigerator based on a built-in vibration damping structure, including a Stirling refrigerator 1. The Stirling refrigerator 1 is the core equipment of the entire refrigeration device, capable of stably performing a refrigeration cycle and providing a continuous supply of cooling capacity to the object being cooled. A refrigeration column 9 is slidably connected inside the refrigeration column 9. The refrigeration column 9 plays a crucial role in heat exchange during the refrigeration cycle, achieving energy conversion of the refrigerant through its continuous sliding motion, thereby achieving the purpose of refrigeration. An elastic ring 10 is fixedly connected to the rear side of the refrigeration column 9. The elastic ring 10 can effectively absorb the vibration energy generated by the refrigeration column 9 during operation, reducing the impact of vibration on the refrigerator parts, thus ensuring the stability of the refrigerator's operation and reducing the potential risk of failure due to vibration.

[0033] The Stirling refrigerator 1 is fixedly connected to multiple fixed shells 2 on its outer side. The fixed shells 2 provide reliable protection and support for the internal structure, and also provide a stable foundation for the connection between the refrigerator and the outside world, ensuring that the refrigerator will not easily shake or shift during operation. The fixed shells 2 are fixedly connected to springs 5. During the operation of the refrigerator, springs 5 ​​play an elastic support and buffering role for the limiting plate 6. When subjected to external force, they can absorb energy through their own deformation and reduce the impact between components.

[0034] The other end of spring 2 5 is fixedly connected to the outside of the limiting plate 6. Under the action of spring 2 5, the limiting plate 6 always maintains a reasonable contact state with the sliding block 4 and the connecting plate 8, which plays a key role in limiting and fixing the installation and disassembly of the refrigeration unit. Spring 1 3 is fixedly connected inside the fixed shell 2. Spring 1 3 is mainly used for buffering and shock absorption. When the connecting plate 8 is connected to or separated from the fixed shell 2, spring 1 3 can effectively absorb and mitigate the impact force generated, protecting the internal structure from damage. One end of spring 1 3 is fixedly connected to the sliding block 4. Under the action of spring 1 3, the sliding block 4 can slide flexibly up and down inside the fixed shell 2, and cooperate with the connecting plate 8 and the limiting plate 6 to realize the function of quick installation and disassembly of the refrigeration unit.

[0035] The fixed housing 2 is internally connected to a limiting plate 6, one side of which is slidably connected to the inside of a slot. During the installation of the refrigeration unit, the limiting plate 6, in cooperation with the slot of the connecting plate 8, securely connects the connecting plate 8 to the fixed housing 2, ensuring the stability of the refrigeration unit installation. During disassembly, external force is applied to rotate the limiting plate 6, disengaging it from the slot and allowing the refrigeration unit to be disassembled. The fixed housing 2 is internally connected to a driving plate 7, the top of which is slidably connected to the outside of the limiting plate 6. The driving plate 7 is used to push the limiting plate 6 upwards when the refrigeration unit needs to be disassembled, applying pressure to one end of the limiting plate 6, thereby causing the limiting plate 6 to rotate and separating it from the slot of the connecting plate 8.

[0036] The bottom of the sliding block 4 is slidably connected to a connecting plate 8. The connecting plate 8 has a slot inside. The connecting plate 8 is a connecting component between the refrigeration unit and the installation position. By cooperating with the internal structure of the fixed shell 2, the refrigeration unit is installed and fixed. The slot design ensures the reliability and stability of the connection. The Stirling refrigeration unit 1 has a shock-absorbing mechanism inside for damping the parts.

[0037] Reference Figure 1 , Figure 2 , Figure 4 The shock absorption mechanism includes two fixed plates 11. The outer side of the elastic ring 10 is fixedly connected to the outer side of the fixed plate 11. The outer side of one of the fixed plates 11 is fixedly connected to the inside of the Stirling refrigerator 1. The fixed plate 11 serves to connect and fix the elastic ring 10 to the internal structure of the refrigerator and also provides an installation base for the compression block 12. The other side of the fixed plate 11 is fixedly connected to the compression block 12. Driven by the cooling column 9, the compression block 12 slides into the vacuum storage box 13. Through the squeezing and rebounding action of the vacuum in the vacuum storage box 13, the vibration of the cooling column 9 is buffered and absorbed, further enhancing the shock absorption effect.

[0038] A vacuum storage box 13 is slidably connected to the outside of the compression block 12. When the vacuum storage box 13 is squeezed by the compression block 12, the internal vacuum will generate a rebound force, pushing the compression block 12 outward. At the same time, the vacuum storage box 13 will slide along with the force of the compression block 12. This interaction can effectively consume vibration energy and play a role in shock absorption. Both sides of the vacuum storage box 13 are fixedly connected to the slide grooves 14. The slide grooves 14 provide guidance and support for the sliding of the transmission block 16, so that it can slide smoothly in the slide grooves 14 and ensure the normal operation of the shock absorption mechanism.

[0039] A transmission block 16 is slidably connected inside the slide groove 14. When the transmission block 16 slides in the slide groove 14, it is connected to the fixed plate 11 and the vacuum storage box 13 through the connecting rod 15, transmitting the movement of the compression block 12 to the vacuum storage box 13. Under the action of the spring 17, the vibration is further adjusted and buffered. The two sides of the transmission block 16 are rotatably connected to the connecting rod 15. The inner side of the connecting rod 15 is fixedly connected to the spring 17. The other end of the spring 17 is fixedly connected to the outer side of the vacuum storage box 13. Under the action of the connecting rod 15, the spring 17 can absorb and release energy, playing a role in buffering and adjusting the movement of the vacuum storage box 13, and enhancing the vibration reduction effect of the damping mechanism. The end of the connecting rod 15 away from the transmission block 16 is rotatably connected to the outer side of the fixed plate 11. The connecting rod 15 connects the transmission block 16, the spring 17 and the fixed plate 11 to form a complete vibration reduction structure system, effectively transmitting and consuming vibration energy, and ensuring the stable operation of the refrigeration unit.

[0040] Working principle: When the operator needs to install the Stirling refrigerator 1 in a designated location, multiple connecting plates 8 are first fixed in the designated location. Then, the inner side of the fixed shell 2 is aligned with the outer side of the connecting plate 8. When the connecting plate 8 slides into the interior of the fixed shell 2, it will push the sliding block 4 upward. At this time, one side of the limiting plate 6 is pushed downward by the second spring 5, so that the other end of the limiting plate 6 rests against the outer side of the sliding block 4. At this time, the sliding block 4 is pushed upward by the connecting plate 8. Then, the limiting plate 6, resting against the side of the sliding block 4, will slide into the groove opened inside the connecting plate 8. At this time, the connecting plate 8 and the fixed shell 2 can be connected to realize the installation of the Stirling refrigerator 1. When the Stirling refrigerator 1 needs to be moved, the driving plate 7 can be pushed upward, so that the driving plate 7 pushes against one end of the limiting plate 6. At this time, the end of the limiting plate 6 is squeezed and will rotate inside the fixed shell 2, so that the end of the limiting plate 6 sliding in the groove inside the connecting plate 8 will disengage from the groove, thereby realizing the disassembly of the Stirling refrigerator 1.

[0041] Once the Stirling refrigerator 1 is secured, the cooling column 9 can be started to provide cooling. As the cooling column 9 operates, it slides back and forth continuously. This movement moves the fixing plate 11, causing the fixing plate 11 to also move the compression block 12, causing the compression block 12 to slide into the vacuum storage box 13. The vacuum in the vacuum storage box 13 is simultaneously compressed by the two compression blocks 12, resulting in a rebound that pushes the compression block 12 outwards. Because there are compression blocks 12 on both the upper and lower sides of the vacuum storage box 13—one sliding inside and the other fixed—when the cooling column 9 moves the compression block 12 into the vacuum storage box 13, it also moves the vacuum storage box 13, causing it to slide along with the force of the compression block 12. When the vacuum inside the vacuum storage box 13 is compressed to a certain degree, it pushes the compression block 12 outwards.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Stirling refrigerator based on a built-in vibration damping structure, comprising a Stirling refrigerator (1), characterized in that: The Stirling refrigerator (1) is fixedly connected to a plurality of fixed shells (2) on its outer side. A spring (3) is fixedly connected inside the fixed shell (2). A sliding block (4) is fixedly connected to one end of the spring (3). A limiting plate (6) is rotatably connected inside the fixed shell (2). A driving plate (7) is slidably connected inside the fixed shell (2). A connecting plate (8) is slidably connected to the bottom of the sliding block (4). A damping mechanism for damping the parts is fixedly connected inside the Stirling refrigerator (1).

2. The Stirling refrigerator based on a built-in vibration damping structure according to claim 1, characterized in that: The shock absorption mechanism includes two fixed plates (11), one of which is fixedly connected to the outside of the Stirling refrigerator (1) and a compression block (12) is fixedly connected to the other side of the fixed plate (11). A vacuum storage box (13) is slidably connected to the outside of the compression block (12). Both sides of the vacuum storage box (13) are fixedly connected to a sliding groove (14), and a transmission block (16) is slidably connected inside the sliding groove (14).

3. The Stirling refrigerator based on a built-in vibration damping structure according to claim 1, characterized in that: A second spring (5) is fixedly connected inside the fixed shell (2), and the other end of the second spring (5) is fixedly connected to the outside of the limiting plate (6).

4. The Stirling refrigerator based on a built-in vibration damping structure according to claim 1, characterized in that: The connecting plate (8) has a slot inside, and one side of the limiting plate (6) is slidably connected inside the slot.

5. The Stirling refrigerator based on a built-in vibration damping structure according to claim 2, characterized in that: Both sides of the transmission block (16) are rotatably connected to connecting rods (15), and the end of the connecting rod (15) away from the transmission block (16) is rotatably connected to the outside of the fixed plate (11).

6. The Stirling refrigerator based on a built-in vibration damping structure according to claim 2, characterized in that: A spring three (17) is fixedly connected to the inner side of the connecting rod (15), and the other end of the spring three (17) is fixedly connected to the outer side of the vacuum storage box (13).

7. The Stirling refrigerator based on a built-in vibration damping structure according to claim 5, characterized in that: The Stirling refrigerator (1) has a refrigeration column (9) slidably connected inside, and an elastic ring (10) is fixedly connected to the rear side of the refrigeration column (9).

8. The Stirling refrigerator based on a built-in vibration damping structure according to claim 7, characterized in that: The outer side of the elastic ring (10) is fixedly connected to the outer side of the fixed plate (11), and the top of the driving plate (7) is slidably connected to the outer side of the limiting plate (6).

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