An integrated stirling cryocooler

Abstract

The utility model discloses an integrated stirling refrigerator, including organism and piston cylinder and motor, and one end of piston cylinder is equipped with the cold pipe, and the hollow ring is sleeved on the cold pipe, is equipped with the storage box in the organism, and the cold water chamber and hot water chamber are separated in the storage box, and the outer wall of storage box is equipped with conveying pump no.

Description

Technical Field

[0001] This utility model relates to the field of Stirling refrigerator technology, and in particular to an integrated Stirling refrigerator. Background Technology

[0002] The Stirling motor is a new type of motor designed based on the principle of reciprocating power machinery. It can be used as a prime mover, a refrigerator, or a heat pump. Stirling refrigerators designed using Stirling motors are gradually being widely used in the refrigeration field.

[0003] Chinese utility model patent CN222165206U discloses an integrated Stirling refrigerator, including a housing and a cover. The housing has multiple slots on both the left and right sides of its front end. The cover has multiple locking blocks fixedly connected to both the left and right sides of its left and right sides. Each locking block has holes on both the left and right sides of its rear end. A threaded rod is rotatably connected to the bottom of each locking block. A rotating block is fixedly connected to the front end of the threaded rod. A slider is slidably connected to the outside of the threaded rod. Sliding grooves are formed on both the left and right sides of the sliders. Locking elements are slidably connected to the inner walls of the sliding grooves. A motor is fixedly connected to the bottom of the housing. This utility model enables quick disassembly and installation of the cover and housing, and also seals the exterior of the cooling pipes and removes frost that accumulates on the exterior of the cooling pipes after use.

[0004] However, when the external ambient temperature is also too high, the effect of using a fan to dissipate heat from the internal components is not good, and it is inconvenient to utilize the heat generated. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated Stirling refrigerator.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An integrated Stirling refrigerator includes a body and a piston cylinder and a motor disposed within the body. A cooling pipe extends from one end of the piston cylinder out of the body, and a hollow ring is fitted onto the cooling pipe. A storage box is disposed within the body, and the storage box is internally divided into a cold water chamber and a hot water chamber by a partition plate. A delivery pump is disposed on one side of the outer wall of the storage box. The input end of the delivery pump is connected to the cold water chamber via an outlet pipe, and the output end of the delivery pump extends out of the body and is connected to the hollow ring. An output pipe is connected to the hollow ring. One end of the pipe passes through the machine body and communicates with the cold water chamber. A sliding ring is also slidably installed on the cooling pipe. A water storage bag is installed inside the sliding ring. A second delivery pump is installed on the other side of the outer wall of the storage box. The input end of the second delivery pump is connected to the hot water chamber through a second outlet pipe. The output end of the second delivery pump passes through the machine body and is connected to the water storage bag through a first telescopic pipe. A third delivery pump is installed inside the machine body. The input end of the third delivery pump is connected to the cold water chamber through a third outlet pipe. A heat exchange tube is wound around the outside of the piston cylinder. One end of the heat exchange tube is connected to the input end of the third delivery pump, and the other end is connected to the hot water chamber.

[0007] Preferably, the storage box is provided with a flow pipe that connects to the cold water chamber, and the flow pipe is provided with an electromagnetic switch valve. One end of the flow pipe extends out of the machine body, and the other end located outside the machine body is connected to the water storage bag through a telescopic pipe.

[0008] Preferably, the outer wall of the storage box is covered with insulating cotton, and the partition is hollow with insulating cotton embedded inside.

[0009] Preferably, a one-way valve is provided on the output pipe.

[0010] Preferably, each of the first and second pumps is provided with a heat insulation pad at its input and output ends, and the first, second, and third outlet pipes, the flow pipe, the first telescopic pipe, and the second telescopic pipe are also provided with heat insulation pads.

[0011] Preferably, the body has a flow hole that communicates with its interior.

[0012] Preferably, the hot water chamber is equipped with a heating rod.

[0013] The beneficial effects of this utility model are as follows: By winding a heat exchange tube around the outside of the piston cylinder and fitting a hollow ring on the cooling tube, and by setting a storage box, the cold water chamber in the storage box and the heat exchange tube are indirectly connected by a first delivery pump, thereby absorbing heat and cooling the piston cylinder inside the machine. At the same time, a partition plate is set to divide the storage box into a cold water chamber and a hot water chamber. A sliding ring is slidably set on the cooling tube, and a water storage bag is set inside the sliding ring. The hot water chamber is indirectly connected to the water storage bag by a second delivery pump and a first telescopic tube. Compared with the prior art, this utility model can melt the frost on the surface of the cooling tube by the heat of the hot water in the water storage bag, without the need to scrape and clean the frost on the cooling tube, avoiding hard contact damage to the surface of the cooling tube. At the same time, the cooling tube cools the liquid in the cold water chamber and cools the piston cylinder through the heat exchange tube, which improves the cooling effect on the piston cylinder when the external ambient temperature is also too high. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a part of the mechanism on the upper part of the machine body in one embodiment of the present utility model;

[0015] Figure 2 This is a structural schematic diagram illustrating a portion of the internal structure of the machine body in one embodiment of the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of section A;

[0017] Figure 4 This is an exploded view of a portion of the upper structure of the machine body, according to one embodiment of the present invention.

[0018] Figure 5 for Figure 4 Enlarged view of section B;

[0019] Figure 6 This is an exploded view of a part of the internal structure of the machine body in one embodiment of the present invention.

[0020] Reference numerals: 1. Body; 2. Piston cylinder; 3. Cooling pipe; 4. Hollow ring; 5. Storage box; 6. Divider plate; 7. Cold water chamber; 8. Hot water chamber; 9. Transfer pump one; 10. Outlet pipe one; 11. Output pipe; 12. Sliding ring; 13. Water storage bag; 14. Transfer pump two; 15. Outlet pipe two; 16. Telescopic pipe one; 17. Transfer pump three; 18. Outlet pipe three; 19. Heat exchange pipe; 20. Insulation cotton; 21. Check valve; 22. Flow pipe; 23. Solenoid switch valve; 24. Telescopic pipe two; 25. Flow hole. Detailed Implementation

[0021] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0022] It should be noted that in this document, relational terms such as first and second, or "telescopic tube one, telescopic tube two," are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0023] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0024] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] like Figures 1 to 6As shown, an integrated Stirling refrigerator includes a body 1, a piston cylinder 2 and a motor disposed inside the body 1. The drive end of the motor is fixedly connected to the piston cylinder 2, and the motor drives the piston cylinder 2 to rotate. A cooling pipe 3 is provided at the front end of the piston cylinder 2, and the front end of the cooling pipe 3 extends out of the body 1. A hollow ring 4 is fitted on the front end of the cooling pipe 3. A storage box 5 is provided at the bottom inside the body 1. A partition plate 6 is vertically provided in the middle of the storage box 5, dividing the interior of the storage box 5 into a cold water chamber 7 and a hot water chamber 8. A transfer pump 9 is provided on the front side of the outer wall of the storage box 5. The input end of the transfer pump 9 is connected to the interior of the cold water chamber 7 through a water outlet pipe 10. The output end of the transfer pump extends out of the body 1 and is connected to the interior of the hollow ring 4. An output pipe 11 is also connected to the hollow ring 4. One end of the output pipe 11 extends into the body 1 and is connected to the cold water chamber 7. A one-way valve 21 is provided on the output pipe 11 to prevent cold water from overflowing. Water in water chamber 7 flows back into output pipe 11. A sliding ring 12 is horizontally slidably installed on the end of the cooling pipe 3 that extends out of the body 1 and faces the body 1. A water storage bag 13 is installed on the inner wall of the sliding ring 12. A second delivery pump 14 is installed on the outer wall of the storage box 5 on the side away from the first delivery pump 9. The input end of the second delivery pump 14 is connected to the hot water chamber 8 through the second water outlet pipe 15. The output end of the second delivery pump 14 extends out of the body 1 through the first telescopic pipe 16 and the water storage bag 13. The sliding ring 12 has a through hole for the telescopic tube 16 to extend into and connect with the water storage bag 13. A flow pipe 22 is provided above the storage box 5 and connects with the interior of the cold water chamber 7. An electromagnetic switch valve 23 is provided on the flow pipe 22. The front end of the flow pipe 22 extends out of the interior of the machine body 1, and its end located outside the machine body 1 is connected to the interior of the water storage bag 13 through the telescopic tube 24. The sliding ring 12 also has a through hole for the telescopic tube 24 to extend into and connect with the water storage bag 13.

[0026] A delivery pump 317 is installed on the bottom side inside the body 1. The input end of the delivery pump 317 is connected to the inside of the cold water chamber 7 through the water outlet pipe 318. A heat exchange tube 19 is wound around the outside of the piston cylinder 2. It should be noted that the number of turns of the heat exchange tube 19 can be changed by personnel according to actual use. At the same time, the heat exchange tube 19 adopts the technical components commonly used by those skilled in the art. One end of the heat exchange tube 19 is connected to the input end of the delivery pump 317, and the other end is connected to the inside of the hot water chamber 8.

[0027] In this embodiment, heat insulation pads (not shown in the attached drawings) are provided on the input and output ends of both the first pump 9 and the second pump 14. Heat insulation pads (not shown in the attached drawings) are also provided on the first water outlet pipe 10, the second water outlet pipe 15, the third water outlet pipe 18, the flow pipe 22, the first telescopic pipe 16, and the second telescopic pipe 24. The heat insulation pads are all attached to the outer wall of each component and are made using technical components conventionally used by those skilled in the art.

[0028] The outer wall of the storage box 5 is entirely covered with insulation cotton 20 (not shown in the attached figure). The partition plate 6 is set with a central hole, and insulation cotton 20 is also embedded inside it. The purpose is to prevent the temperature of the cold water chamber 7 and the hot water chamber 8 in the storage box 5 from dissipating too quickly, and to prevent direct heat exchange between the cold water chamber 7 and the hot water chamber 8.

[0029] The outer wall of the body 1 has a flow hole 25 that communicates with its interior, so as to allow air to circulate between the inside and outside of the body 1.

[0030] When the cooling pipe 3 is activated, delivery pumps 9, 14, and 17 are all operational. Delivery pump 9 draws water from the cold water chamber 7 through the outlet pipe 10 and delivers it to the hollow ring 4. Within the hollow ring 4, water exchanges heat with the cooling pipe 3, resulting in cooling. The water then re-enters the cold water chamber 7 through the outlet pipe 11. This ensures that the water in the cold water chamber 7 remains at a low temperature during the cooling process of the cooling pipe 3. During the cooling process of the cooling pipe 3, the piston cylinder 2 generates a certain amount of heat, which is released by delivery pump 17 through the outlet pipe... The cold water in the cold water chamber 7 is drawn into the heat exchange tube 19 by the pump 18. The cold water flows in the heat exchange tube 19 and absorbs heat and cools the outer wall of the piston cylinder 2. The water then enters the hot water chamber 8. The water in the hot water chamber 8, which has a certain temperature, is then driven by the second pump 14 and enters the water storage bag 13 through the first telescopic tube 16. Since the cooling pipe 3 is cooling, the water entering the water storage bag 13 will be cooled down and then flow back into the cold water chamber 7 through the circulation pipe 22, completing the cycle of absorbing heat and cooling the piston cylinder 2.

[0031] When the cooling of the cooling pipe 3 is stopped, the electromagnetic switch valve 23 closes the flow of the outlet pipe 18, the first delivery pump 9 stops, the second delivery pump 14 stops simultaneously, and the third delivery pump 17 is in working condition, which sends the water in the cold water chamber 7 into the hot water chamber 8 through the heat exchange pipe 19. Since the piston cylinder 2 still has a certain temperature when the cooling is stopped, the water flowing from the cold water chamber 7 into the hot water chamber 8 will first exchange heat with the piston cylinder 2 and then enter the hot water chamber 8 for storage.

[0032] When personnel need to remove frost from the cooling pipe 3, the sliding ring 12 is moved back and forth on the cooling pipe 3. The water storage bag 13 inside the sliding ring 12 comes into contact with the surface of the cooling pipe 3, and the second delivery pump 14 is started, introducing heat-exchanged water into the water storage bag 13. The heat-exchanged water in the water storage bag 13 begins to exchange heat with the surface of the cooling pipe 3, thereby removing the frost. At the same time, a heating rod (not shown in the attached diagram) is installed in the hot water chamber 8. If the temperature in the hot water chamber 8 is insufficient, personnel can... The heating rod is activated to heat the water in the hot water chamber 8, thereby improving the heat exchange efficiency on the surface of the cooling pipe 3. The electromagnetic switch valve 23 is opened, and the water in the water storage bag 13, after heat exchange, enters the cold water chamber 7. Since the low-temperature water in the cold water chamber 7 is circulated into the hot water chamber 8 by the transfer pump 3 17 through the heat exchange pipe 19 when the cooling pipe 3 stops cooling, the water in the water storage bag 13, after heat exchange, will be circulated into the hot water chamber 8 again by the transfer pump 3 17 through the heat exchange pipe 19, thus completing the water circulation to the hot water chamber 8.

[0033] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. An integrated Stirling refrigerator, comprising a housing (1), a piston cylinder (2) disposed within the housing (1), and a motor, wherein a cooling pipe (3) is provided at one end of the piston cylinder (2) extending out of the housing (1). Its features are, A hollow ring (4) is fitted on the cooling pipe (3), and a storage box (5) is provided inside the body (1). The storage box (5) is divided into a cold water chamber (7) and a hot water chamber (8) by a partition plate (6). A delivery pump (9) is provided on one side of the outer wall of the storage box (5). The input end of the delivery pump (9) is connected to the cold water chamber (7) through the water outlet pipe (10). The output end of the delivery pump (9) passes through the machine body (1) and is connected to the hollow ring (4). An output pipe (11) is connected to the hollow ring (4). One end of the output pipe (11) passes through the machine body (1) and is connected to the cold water chamber (7). A sliding ring (12) is slidably arranged on the cooling pipe (3), and a water storage bag (13) is arranged inside the sliding ring (12). A second delivery pump (14) is arranged on the other side of the outer wall of the storage box (5). The input end of the second delivery pump (14) is connected to the hot water chamber (8) through the second water outlet pipe (15). The output end of the second delivery pump (14) passes through the body (1) and is connected to the water storage bag (13) through the first telescopic pipe (16). The machine body (1) is equipped with a third delivery pump (17). The input end of the third delivery pump (17) is connected to the cold water chamber (7) through the third water outlet pipe (18). A heat exchange tube (19) is wound around the outside of the piston cylinder (2). One end of the heat exchange tube (19) is connected to the input end of the third delivery pump (17), and the other end is connected to the hot water chamber (8).

2. An integrated Stirling refrigerator according to claim 1, characterized in that, The storage box (5) is provided with a flow pipe (22) that communicates with the cold water chamber (7). The flow pipe (22) is provided with an electromagnetic switch valve (23). One end of the flow pipe (22) extends out of the machine body (1), and the other end located outside the machine body (1) is connected to the water storage bag (13) through a telescopic pipe (24).

3. An integrated Stirling refrigerator according to claim 1, characterized in that, The storage box (5) is covered with insulation cotton (20) on its outer wall, and the partition plate (6) is hollow and has insulation cotton (20) embedded inside it.

4. An integrated Stirling refrigerator according to claim 1, characterized in that, A one-way valve (21) is provided on the output pipe (11).

5. An integrated Stirling refrigerator according to claim 2, characterized in that, Each of the first (9) and the second (14) of the delivery pump is provided with a heat insulation pad at its input and output ends. The first (10), the second (15), the third (18), the flow pipe (22), the first (16), and the second (24) of the telescopic pipe are also provided with heat insulation pads.

6. An integrated Stirling refrigerator according to claim 1, characterized in that, The body (1) has a flow hole (25) that communicates with its interior.

7. An integrated Stirling refrigerator according to claim 1, characterized in that, A heating rod is installed in the hot water chamber (8).

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