A cryogenic high-efficiency refrigeration device

Abstract

The present invention relates to the field of cryogenic refrigeration technology, and particularly relates to a cryogenic high-efficiency refrigeration device. It includes: a box body, in which a working chamber, a high-temperature evaporation chamber, a low-temperature condensation chamber and a low-temperature evaporation chamber are arranged. An environmental refrigeration module is installed in the box body, and a low-temperature evaporation pipe is fixedly connected in the box body; a mounting plate is fixedly connected to an electric slider of the electric slide rail, the mounting plate is fixedly connected with a high-temperature evaporation pipe, and the second fixing frame is fixedly connected with a low-temperature condensation pipe; a sealing plate is slidably connected to the second fixing frame. By separating the high-temperature evaporation pipe from the low-temperature condensation pipe, the present invention uses the environmental refrigeration module and the high-temperature evaporation pipe to jointly cool the working chamber. When the low-temperature subsystem needs to cool the working chamber, the environmental refrigeration module is turned off, and the high-temperature evaporation pipe is used to cool the low-temperature condensation pipe, thereby improving the utilization rate of the high-temperature evaporation pipe and increasing the overall refrigeration efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of cryogenic refrigeration, and particularly to a cryogenic high-efficiency refrigeration device. Background Art

[0002] Cryogenic refrigeration devices are widely used in fields such as biological preservation, sensor cooling, and material testing, and usually use a cascade refrigeration system to achieve extremely low temperatures. The cascade refrigeration system includes two or more subsystems. Taking two subsystems as an example, they are a high-temperature subsystem and a low-temperature subsystem respectively. Each subsystem includes at least one condenser and one evaporator, and is filled with different heat exchange media. Since the evaporation temperature of the heat exchange medium in the low-temperature subsystem is relatively low, if the low-temperature subsystem is in a relatively high temperature state, these media are prone to excessive expansion, thus triggering safety accidents such as leakage or explosion. Therefore, during use, it is necessary to limit the operating temperature of the low-temperature subsystem within a safe range through the high-temperature subsystem. That is, during the operation of the cryogenic refrigeration device, the high-temperature subsystem needs to be started first. The high-temperature subsystem cools the working chamber and the area where the low-temperature subsystem is located respectively, reducing the temperature in the working chamber and the ambient temperature of the low-temperature subsystem. At this time, the low-temperature subsystem is not yet connected to the working chamber. When the high-temperature subsystem reduces the temperature to a certain extent, the cascade refrigeration system starts the low-temperature subsystem. At this time, the high-temperature subsystem no longer directly cools the working chamber, but only cools the condenser of the low-temperature subsystem. The low-temperature subsystem is connected to the working chamber and further cools it. To ensure the smooth progress of the above process, the high-temperature subsystem usually has at least two evaporators: one for overall cooling (i.e., cooling the working chamber and the area where the low-temperature subsystem is located at the same time), and the other is directly connected to the condenser of the low-temperature subsystem and is specifically responsible for cooling it. However, the two evaporators cannot be used simultaneously during the cooling process, resulting in a low utilization rate of the device and reducing the overall refrigeration efficiency of the high-temperature subsystem. Summary of the Invention

[0003] In order to overcome the drawback that at least two evaporators that cannot be used simultaneously are usually equipped in the existing high-temperature subsystem, resulting in a low utilization rate of the device, the present invention provides a cryogenic high-efficiency refrigeration device.

[0004] The technical solution is as follows: A cryogenic high-efficiency refrigeration device includes:

[0005] A box body, in which a working chamber, a high-temperature evaporation chamber, a low-temperature condensation chamber, and a low-temperature evaporation chamber are provided. An environmental refrigeration module and several air guiding members are installed in the box body. A first fixing frame, a second fixing frame, a low-temperature evaporation pipe, and an electric slide rail are fixedly connected in the box body;

[0006] The mounting plate is fixedly connected to the electric slider of the electric slide rail. The mounting plate is fixedly connected with a high-temperature evaporation tube. The second fixing frame is fixedly connected with a low-temperature condensation tube. The high-temperature evaporation tube is located in the high-temperature evaporation chamber. The low-temperature condensation tube is located in the low-temperature condensation chamber. The low-temperature evaporation tube is located in the low-temperature evaporation chamber;

[0007] The sealing plate is slidably connected to the second fixing frame. A driving module is arranged in the second fixing frame. The driving module is used to control the movement of the sealing plate, so as to control the communication or disconnection between the high-temperature evaporation chamber and the low-temperature condensation chamber;

[0008] The heat conduction component is arranged on the high-temperature evaporation tube and is used to increase the heat exchange efficiency between the high-temperature evaporation tube and the low-temperature condensation tube.

[0009] As a further preferred solution, the heat conduction component includes:

[0010] There are several heat conduction members, all of which are arranged on the high-temperature evaporation tube. The heat conduction members are fixedly connected with heat conduction plates distributed at intervals. When the high-temperature evaporation tube is aligned with the low-temperature condensation tube, the heat conduction plates are in contact with the low-temperature condensation tube. The heat conduction plates are made of elastic material and are used to increase the contact area between the heat conduction plates and the low-temperature condensation tube. A symmetrically distributed guiding mechanism is arranged on one side of the heat conduction member close to the adjacent heat conduction plate. The guiding mechanism is used to control the deformation state of the adjacent heat conduction plates.

[0011] As a further preferred solution, the sum of the lengths of the two heat conduction plates in the vertical direction is equal to the circumference of the outer circle of the cross-section of the low-temperature condensation tube.

[0012] As a further preferred solution, the guiding mechanism includes:

[0013] The sliding member is slidably connected to one side of the heat conduction member close to the adjacent heat conduction plate. The sliding member is rotatably connected to the adjacent heat conduction plate. The heat conduction member is fixedly connected with a pneumatic telescopic rod. The sliding member is rotatably connected with a first connecting member. The telescopic end of the pneumatic telescopic rod is slidably and rotatably connected with the first connecting member;

[0014] The extrusion assembly is arranged on the heat conduction plate and is used to further extrude the adjacent heat conduction plates so that the heat conduction plates are attached to the low-temperature condensation tube.

[0015] As a further preferred solution, an inclined surface is arranged on one side of the sliding member close to the adjacent heat conduction plate. The inclined surface of the sliding member is used to extrude the heat conduction plate so that the heat conduction plate is attached to the adjacent low-temperature condensation tube.

[0016] As a further preferred solution, the extrusion assembly includes:

[0017] The extrusion plate is rotatably connected to the adjacent sliding member, and the extrusion plate is used to extrude the heat conduction plate to deform the heat conduction plate.

[0018] The second connecting member is rotatably connected to the adjacent extrusion plate, and the second connecting member is rotatably connected to the adjacent first connecting member.

[0019] As a further preferred solution, it further includes:

[0020] The air guiding mechanism is arranged on the mounting plate and is used to increase the heat exchange efficiency between the high-temperature evaporation tube and the outside air. The air guiding mechanism includes:

[0021] There are several rotating wheels, all of which are rotatably connected to the mounting plate. The number of rotating wheels is equal to and corresponds one-to-one with the number of heat guiding members. The rotating wheels are fixedly connected to the adjacent heat guiding members, and the heat guiding members are rotatably connected to the high-temperature evaporation tube.

[0022] The driving component is arranged on the mounting plate and is used to drive all the rotating wheels to rotate together.

[0023] As a further preferred solution, the driving component includes:

[0024] The electric push rod is fixedly connected to the mounting plate. The telescopic end of the electric push rod is fixedly connected with a sliding plate, and the rotating wheel is engaged with the sliding plate through a gear and rack.

[0025] As a further preferred solution, the mounting plate is fixedly connected with first air guiding strips distributed at intervals, and the blocking plate is fixedly connected with spring telescopic rods distributed at intervals. The telescopic end of the spring telescopic rod is fixedly connected with a second air guiding strip. The second air guiding strip is slidably connected to the blocking plate, and the second fixing frame is used to squeeze the second air guiding strip to retract the second air guiding strip into the blocking plate.

[0026] As a further preferred solution, there is at least one second air guiding strip in the vertical plane where the first air guiding strip is located.

[0027] The present invention has the following advantages: When cooling the whole device, the high-temperature evaporation tube and the low-temperature condensation tube are separated, and the environmental refrigeration module and the high-temperature evaporation tube are used together to cool the working chamber. When the low-temperature subsystem needs to cool the working chamber, the environmental refrigeration module is closed, and the high-temperature evaporation tube is controlled to move to a position aligned with the low-temperature condensation tube, and the high-temperature evaporation tube is used to cool the low-temperature condensation tube, thereby improving the utilization rate of the high-temperature evaporation tube and increasing the overall refrigeration efficiency of the device.

[0028] In the present invention, by controlling the heat conduction plate to wrap the pipes of adjacent low-temperature condensing pipes, the contact area between the heat conduction plate and the low-temperature condensing pipes is increased, so that the heat conduction efficiency from the low-temperature condensing pipes to the high-temperature evaporation pipes is increased, and further the cooling efficiency of the high-temperature evaporation pipes for the low-temperature condensing pipes is increased.

[0029] In the present invention, when using the high-temperature evaporation pipes to cool the working chamber, by controlling the heat conduction plate to change its position and shape, the contact area between the air flow and the high-temperature evaporation pipes is increased, and further the cooling efficiency of the high-temperature evaporation pipes for the working chamber is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 is a three-dimensional structural schematic diagram of the box body, the air guiding member and the second fixing bracket of the present invention;

[0032] Figure 3 is a three-dimensional structural schematic diagram of the box body, the air guiding member and the mounting plate of the present invention;

[0033] Figure 4 is a three-dimensional structural schematic diagram of the high-temperature evaporation chamber and the low-temperature condensing chamber of the present invention;

[0034] Figure 5 is a cross-sectional view of the second fixing bracket and the mounting plate of the present invention;

[0035] Figure 6 is an exploded view of the mounting plate, the high-temperature evaporation pipes and the low-temperature condensing pipes of the present invention;

[0036] Figure 7 is a three-dimensional structural schematic diagram of the heat guiding member, the heat conduction plate and the sliding member of the present invention;

[0037] Figure 8 is a cross-sectional view of the heat guiding member and the heat conduction plate of the present invention;

[0038] Figure 9 is a three-dimensional structural schematic diagram of the pneumatic telescopic rod, the first connecting member and the pressing plate of the present invention;

[0039] Figure 10 is a three-dimensional structural schematic diagram of the mounting plate, the rotating wheel and the sliding plate of the present invention;

[0040] Figure 11 is a three-dimensional structural schematic diagram of the mounting plate, the rotating wheel and the electric push rod of the present invention;

[0041] Figure 12 is a three-dimensional structural schematic diagram of the second fixing bracket and the plugging plate of the present invention;

[0042] Figure 13Schematic three-dimensional structure diagram of the plugging plate and the second air guiding strip of the present invention.

[0043] The reference signs in the drawings are: 1 - box body, 101 - working chamber, 102 - high-temperature evaporation chamber, 103 - low-temperature condensation chamber, 104 - low-temperature evaporation chamber, 2 - air guiding member, 3 - first fixing frame, 4 - second fixing frame, 5 - low-temperature evaporation tube, 6 - electric slide rail, 7 - mounting plate, 8 - high-temperature evaporation tube, 9 - low-temperature condensation tube, 10 - plugging plate, 11 - temperature guiding member, 12 - temperature guiding plate, 13 - sliding member, 14 - pneumatic telescopic rod, 15 - first connecting member, 16 - extrusion plate, 17 - second connecting member, 18 - rotating wheel, 19 - electric push rod, 20 - sliding plate, 201 - first air guiding strip, 21 - second air guiding strip, 22 - spring telescopic rod. Detailed implementation manners

[0044] The present invention will be further described below in conjunction with specific embodiments. It should also be noted that unless otherwise clearly specified and limited, terms such as "set" and "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected by bolts or indirectly connected through an intermediate medium, and should be understood according to the actual usage situation. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

[0045] A cryogenic high-efficiency refrigeration device, referring to Figures 1 - 6 , includes: a box body 1, a working chamber 101, a high-temperature evaporation chamber 102, a low-temperature condensation chamber 103, and a low-temperature evaporation chamber 104 are arranged in the box body 1, an environmental refrigeration module and a plurality of air guiding members 2 are installed in the box body 1, a first fixing frame 3, a second fixing frame 4, a low-temperature evaporation tube 5, and an electric slide rail 6 are fixedly connected in the box body 1; a mounting plate 7, fixedly connected to the electric slider of the electric slide rail 6, the mounting plate 7 is fixedly connected with a high-temperature evaporation tube 8, the second fixing frame 4 is fixedly connected with a low-temperature condensation tube 9, the high-temperature evaporation tube 8 is located in the high-temperature evaporation chamber 102, the low-temperature condensation tube 9 is located in the low-temperature condensation chamber 103, and the low-temperature evaporation tube 5 is located in the low-temperature evaporation chamber 104; a plugging plate 10, slidably connected to the second fixing frame 4, a driving module is arranged in the second fixing frame 4, and the driving module is used to control the movement of the plugging plate 10, thereby controlling the communication or disconnection between the high-temperature evaporation chamber 102 and the low-temperature condensation chamber 103; a heat conduction assembly, arranged on the high-temperature evaporation tube 8, is used to increase the heat exchange efficiency between the high-temperature evaporation tube 8 and the low-temperature condensation tube 9.

[0046] As a further preferred solution, referring to Figures 5 - 9The heat conduction component includes: a plurality of heat conduction members 11, all of which are arranged on the high-temperature evaporation tube 8. The heat conduction member 11 is fixed with spaced heat conduction plates 12. When the high-temperature evaporation tube 8 is aligned with the low-temperature condensation tube 9, the heat conduction plate 12 contacts the low-temperature condensation tube 9. The heat conduction plate 12 is made of elastic material and is used to increase the contact area between the heat conduction plate 12 and the low-temperature condensation tube 9. A symmetrically distributed guide mechanism is provided on one side of the heat conduction member 11 close to the adjacent heat conduction plate 12. The guide mechanism is used to control the deformation state of the adjacent heat conduction plate 12.

[0047] In the above scheme, in the present invention, two subsystems are installed in the box 1, the high-temperature evaporation tube 8 and the environmental refrigeration module are connected to the high-temperature subsystem, and the low-temperature evaporation tube 5 and the low-temperature condensation tube 9 are both connected to the low-temperature subsystem. The compressors, throttle valves and corresponding pipeline systems in the two subsystems all adopt existing conventional settings, which are not specifically shown in the figure. The specific arrangement of the high-temperature evaporation tube 8 and the low-temperature condensation tube 9 is as follows Figure 5 and Figure 6 As shown, when the high-temperature evaporation tube 8 moves to a position aligned with the low-temperature condensation tube 9, the internal pipes of the two are staggered with each other; the working chamber 101, the high-temperature evaporation chamber 102, the low-temperature condensation chamber 103 and the low-temperature evaporation chamber 104 are initially separated from each other, and the high-temperature evaporation chamber 102 and the low-temperature evaporation chamber 104 are respectively connected to the working chamber 101 through adjacent air guides 2. The air guide 2 is an existing electric device, including basic components such as an electric fan, an exhaust duct and an electric control valve, which is used to control the flow direction of the air in the working chamber 101, so that the air in the working chamber 101 actively moves to the high temperature evaporation chamber 102. The air flows in the high-temperature evaporation chamber 102 or the low-temperature evaporation chamber 104, and has a self-sealing function when not working. The environmental refrigeration module in the box body 1 is used to cool down the interior of the device as a whole. The environmental refrigeration module adopts the structure of the existing evaporator and is not specifically shown in the figure; the driving module on the second fixed frame 4 can be an electric push rod or an electric control slide rail; the air guide 2, the electric slide rail 6, the driving module, the guide mechanism, the high-temperature subsystem and the low-temperature subsystem are all electrically connected to the control terminal, and a temperature control module for monitoring the temperature is also provided in the box body 1, and the temperature control module is electrically connected to the control terminal.

[0048] The working process is as follows: When the staff needs to use this device for refrigeration, first start the high-temperature subsystem. The high-temperature subsystem cools the working chamber 101, high-temperature evaporation chamber 102, low-temperature condensation chamber 103, and low-temperature evaporation chamber 104 through the environmental refrigeration module and the high-temperature evaporation tube 8. The control terminal simultaneously starts the air guiding member 2 communicated with the high-temperature evaporation chamber 102. The air guiding member 2 at this place guides the air in the working chamber 101 into the high-temperature evaporation chamber 102, so that the air flow contacts the high-temperature evaporation tube 8, thereby using the high-temperature evaporation tube 8 to cool the air in the working chamber 101 and increasing the utilization rate of the device. At this time, since the blocking plate 10 separates the high-temperature evaporation chamber 102 and the low-temperature condensation chamber 103, the air in the working chamber 101 will not directly enter the low-temperature condensation chamber 103 and will not affect the heat exchange medium in the low-temperature condensation tube 9.

[0049] When the temperature control module monitors that the temperature in the working chamber 101 drops to a suitable temperature, that is, when the gas at the current temperature will not cause the heat exchange medium in the low-temperature subsystem to expand excessively, the control terminal closes the environmental refrigeration module and the air guiding member 2 communicated with the high-temperature evaporation chamber 102, and starts the air guiding member 2 communicated with the low-temperature evaporation chamber 104. The air guiding member 2 transports the gas in the working chamber 101 into the low-temperature evaporation chamber 104, so that the gas contacts the low-temperature evaporation tube 5 in the low-temperature evaporation chamber 104 and conducts heat exchange. The control terminal controls the blocking plate 10 to retract into the second fixing frame 4 through the driving module. The blocking plate 10 no longer separates the high-temperature evaporation chamber 102 and the low-temperature condensation chamber 103. The control terminal starts the electric slide rail 6. The electric slider on the electric slide rail 6 drives the mounting plate 7 to slide downward. The mounting plate 7 drives the high-temperature evaporation tube 8, the temperature guiding member 11, and the temperature guiding plate 12 thereon to slide downward together. The pipeline on the high-temperature evaporation tube 8 gradually inserts into the gap between the pipelines on the low-temperature condensation tube 9. When the high-temperature evaporation tube 8 is aligned with the low-temperature condensation tube 9 (when the two are in the same plane), the control terminal closes the electric slide rail 6. The low-temperature condensation tube 9 contacts the adjacent temperature guiding plate 12. The control terminal controls all the guiding mechanisms to drive the adjacent temperature guiding plates 12 to deform, so as to increase the contact area between the temperature guiding plate 12 and the low-temperature condensation tube 9. The high-temperature evaporation tube 8 and the low-temperature condensation tube 9 conduct heat exchange through the temperature guiding member 11 and the temperature guiding plate 12. At this time, the control terminal starts the low-temperature subsystem. The low-temperature subsystem works, cools the temperature in the working chamber 101 through the low-temperature evaporation tube 5, and dissipates heat from the low-temperature condensation tube 9 through the high-temperature evaporation tube 8.

[0050] When the temperature in the working chamber 101 reaches the expected cooling temperature, the control terminal performs heat preservation treatment on the working chamber 101 through the high-temperature evaporation tube 8, the low-temperature condensation tube 9, and the low-temperature evaporation tube 5.

[0051] When the device stops refrigerating in the short term, the control terminal shuts down the low-temperature subsystem, and drives all the heat conduction plates 12 to deform to the initial state through all the guiding mechanisms. The electric slide rail 6 drives the mounting plate 7 and the high-temperature evaporation tube 8 to reset. At the same time, the control terminal controls the sealing plate 10 to reset, separating the high-temperature evaporation chamber 102 and the low-temperature condensation chamber 103. Subsequently, the control terminal uses the environmental refrigeration module of the high-temperature subsystem and the high-temperature evaporation tube 8 to keep warm the positions of the low-temperature condensation chamber 103 and the low-temperature evaporation chamber 104 where the low-temperature subsystem is located, so as to prevent the temperature in the low-temperature condensation chamber 103 and the low-temperature evaporation chamber 104 from rising, resulting in excessive expansion of the heat exchange medium in the low-temperature subsystem.

[0052] When the device stops refrigerating in the long term, the staff needs to recycle the heat exchange medium in the low-temperature subsystem into a special high-pressure storage container, and then the staff completely shuts down the high-temperature subsystem through the control terminal.

[0053] As a further preferred solution, referring to Figure 9 , the sum of the lengths of the two heat conduction plates 12 in the vertical direction is equal to the circumference of the outer circle of the cross-section of the low-temperature condensation tube 9.

[0054] As a further preferred solution, referring to Figures 5 - 9 , the guiding mechanism includes: a sliding member 13, slidably connected to one side of the heat conducting member 11 close to the adjacent heat conduction plate 12, the sliding member 13 is rotatably connected to the adjacent heat conduction plate 12, the heat conducting member 11 is fixedly connected with a pneumatic telescopic rod 14, the sliding member 13 is rotatably connected with a first connecting member 15, and the telescopic end of the pneumatic telescopic rod 14 is slidably and rotatably connected with the first connecting member 15; an extrusion assembly is arranged on the adjacent heat conduction plates 12 for further extruding the adjacent heat conduction plates 12 to make the heat conduction plates 12 fit with the low-temperature condensation tube 9.

[0055] As a further preferred solution, referring to Figures 7 - 9 , one side of the sliding member 13 close to the adjacent heat conduction plate 12 is provided with an inclined surface, and the inclined surface of the sliding member 13 is used for extruding the heat conduction plate 12 to make the heat conduction plate 12 fit with the adjacent low-temperature condensation tube 9.

[0056] As a further preferred solution, referring to Figures 7 - 9 , the extrusion assembly includes: an extrusion plate 16, rotatably connected to the adjacent sliding member 13, the extrusion plate 16 is used for extruding the heat conduction plate 12 to make the heat conduction plate 12 deform; a second connecting member 17, rotatably connected to the adjacent extrusion plate 16, and the second connecting member 17 is rotatably connected to the adjacent first connecting member 15.

[0057] In the above solution, the heat conduction plate 12 is made of a low-temperature resistant elastic material (such as a low-temperature resistant alloy material). The heights of the two heat conduction plates 12 are equal to the circumference of the outer circle of the cross-section of the low-temperature condensation pipe 9. By squeezing adjacent heat conduction plates 12 to cause deformation, adjacent heat conduction plates 12 can completely wrap around the outside of the adjacent low-temperature condensation pipe 9, increasing the contact area between the heat conduction plate 12 and the low-temperature condensation pipe 9, thereby increasing the heat transfer efficiency between the two. A pneumatic telescopic rod 14 is used to keep the heat conduction plate 12 and the low-temperature condensation pipe 9 in close contact; the pneumatic telescopic rod 14 is connected to an external air pump, and the external air pump is electrically connected to the control terminal.

[0058] The working process is as follows: Taking one of the heat conduction components 11 and its components as an example, when the high-temperature evaporation pipe 8 is aligned with the low-temperature condensation pipe 9, both heat conduction plates 12 are in contact with the low-temperature condensation pipe 9. At this time, the control terminal controls the air pump to supply air to all pneumatic telescopic rods 14. The telescopic ends of the pneumatic telescopic rods 14 drive the first connecting member 15 and the second connecting member 17 to extend. During the movement of the first connecting member 15 and the second connecting member 17, the extrusion plate 16 is driven to swing towards one side of the adjacent heat conduction plate 12 until the extrusion plate 16 contacts the heat conduction plate 12. At this time, the extrusion plate 16 starts to squeeze the heat conduction plate 12 to bend and deform, and the heat conduction plate 12 bends and stores energy. The telescopic ends of the pneumatic telescopic rods 14 simultaneously drive the sliding member 13 and the extrusion plate 16 to move horizontally. The sliding member 13 synchronously squeezes the adjacent side of the heat conduction plate 12 to deform towards the low-temperature condensation pipe 9 until the extrusion plate 16 and the sliding member 13 squeeze the heat conduction plate 12 into a state completely attached to the low-temperature condensation pipe 9 (as Figure 9 shown). The telescopic ends of the pneumatic telescopic rods 14 cannot continue to extend, and the first connecting member 15, the sliding member 13, the extrusion plate 16, and the second connecting member 17 stop moving. When all pneumatic telescopic rods 14 extend to the limit position, the control terminal closes the air pump. At this time, all heat conduction plates 12 are in close contact with the adjacent low-temperature condensation pipes 9. The temperature inside the low-temperature condensation pipe 9 is transferred to the high-temperature evaporation pipe 8 through the heat conduction plate 12, the sliding member 13, the extrusion plate 16, and the heat conduction component 11, improving the temperature transfer efficiency between the low-temperature condensation pipe 9 and the high-temperature evaporation pipe 8. When the control terminal is ready to control the mounting plate 7 and the high-temperature evaporation pipe 8 to move upward and reset, the control terminal controls the air pump to extract the gas from all pneumatic telescopic rods 14. The first connecting member 15, the sliding member 13, the extrusion plate 16, and the second connecting member 17 move and reset under the drive of the telescopic ends of the pneumatic telescopic rods 14, and the heat conduction plate 12 resets under the action of its own elastic force.

[0059] In the above solution, the heat conduction component 11 and the high-temperature evaporation pipe 8 are regarded as fixedly connected, while in the following solution, the heat conduction component 11 and the high-temperature evaporation pipe 8 are regarded as rotationally connected.

[0060] As a further preferred solution, referring to Figure 6 、 Figure 7 、 Figure 10 andFigure 11 It further includes: a wind guiding mechanism disposed on the mounting plate 7 for increasing the heat exchange efficiency between the high-temperature evaporation tube 8 and the outside air. The wind guiding mechanism includes: a plurality of rotating wheels 18, all rotatably connected to the mounting plate 7. The number of rotating wheels 18 is equal to and corresponds one-to-one with the number of temperature guiding members 11. The rotating wheels 18 are fixedly connected to the adjacent temperature guiding members 11, and the temperature guiding members 11 are rotatably connected to the high-temperature evaporation tube 8; a driving assembly disposed on the mounting plate 7 for driving all the rotating wheels 18 to rotate together.

[0061] As a further preferred solution, referring to Figure 10 and Figure 11 the driving assembly includes: an electric push rod 19 fixedly connected to the mounting plate 7. The telescopic end of the electric push rod 19 is fixedly connected with a sliding plate 20, and the rotating wheel 18 is engaged with the sliding plate 20 through a gear and a rack.

[0062] As a further preferred solution, referring to Figure 5 , Figure 12 and Figure 13 the mounting plate 7 is fixedly connected with first wind guiding strips 201 distributed at intervals, and the blocking plate 10 is fixedly connected with spring telescopic rods 22 distributed at intervals. The telescopic end of the spring telescopic rod 22 is fixedly connected with a second wind guiding strip 21. The second wind guiding strip 21 is slidably connected to the blocking plate 10. The second fixing bracket 4 is used to squeeze the second wind guiding strip 21 to retract the second wind guiding strip 21 into the blocking plate 10.

[0063] As a further preferred solution, referring to Figure 5 there is at least one second wind guiding strip 21 in the vertical plane where the first wind guiding strip 201 is located.

[0064] In the above solution, the initial position of the temperature guiding member 11 relative to the high-temperature evaporation tube 8 is as Figure 8 shown. At this time, the two temperature guiding plates 12 on the temperature guiding member 11 are respectively located on its left and right sides; a gear is fixedly connected to the outside of the rotating wheel 18. The first wind guiding strip 201 and the second wind guiding strip 21 are both provided with curved surfaces. The curved surfaces on the first wind guiding strip 201 and the second wind guiding strip 21 are used to guide the wind in the high-temperature evaporation chamber 102 towards the middle of the high-temperature evaporation tube 8, thereby increasing the heat exchange effect between the high-temperature evaporation tube 8 and the air; all the first wind guiding strips 201 and all the second wind guiding strips 21 correspond one-to-one, so that the wind guided towards the middle of the high-temperature evaporation tube 8 by the two is always in a symmetrical state, thereby causing part of the wind to collide in the middle of the high-temperature evaporation tube 8, increasing the contact area of the wind in the middle of the high-temperature evaporation tube 8, and thereby improving the heat dissipation effect of the wind on the high-temperature evaporation tube 8; the electric push rod 19 is electrically connected to the control terminal.

[0065] The workflow is as follows: When the staff uses the high-temperature evaporation tube 8 to cool the working chamber 101, the air guiding member 2 at the high-temperature evaporation chamber 102 is in a working state at this time. The air guiding member 2 guides the air in the working chamber 101 to the high-temperature evaporation tube 8, and then guides the cooled air at the high-temperature evaporation tube 8 back into the working chamber 101 to Figure 7 take as an example. Assume that the airflow passing through the high-temperature evaporation tube 8 flows from right to left at this time (taking Figure 7 as a reference). The control terminal first controls the telescopic end of the electric push rod 19 to extend to the right. The telescopic end of the electric push rod 19 drives the sliding plate 20 to move together. The sliding plate 20 drives the adjacent rotating wheel 18 to rotate through the rack on it. The rotating wheel 18 drives the temperature guiding member 11 to rotate. Until the temperature guiding member 11 rotates 90°, the control terminal closes the electric push rod 19. At this time, the two temperature guiding plates 12 on the temperature guiding member 11 are respectively located on its upper and lower sides. Take one temperature guiding member 11 and its adjacent components as an example: The control terminal supplies gas into the pneumatic telescopic rod 14 at the upper right of the temperature guiding member 11 through the air pump. The telescopic end of the right pneumatic telescopic rod 14 drives the right part of the upper temperature guiding plate 12 to bend upward according to the same principle as above. The control terminal extracts the gas in the pneumatic telescopic rod 14 at the upper left of the temperature guiding member 11 through the air pump. The telescopic end of the upper left pneumatic telescopic rod 14 drives the left part of the upper temperature guiding plate 12 to bend downward according to the same principle as above, so that the temperature guiding plate 12 is bent into a horizontal ∫ shape. Subsequently, the control terminal extracts the gas in the pneumatic telescopic rod 14 at the lower right of the temperature guiding member 11 through the air pump, controls the right side of the temperature guiding plate 12 on the lower side of the temperature guiding member 11 to bend upward, and the control terminal supplies gas into the pneumatic telescopic rod 14 at the lower left of the temperature guiding member 11 through the air pump, and the left side of the lower temperature guiding plate 12 bends downward. At this time, all the temperature guiding plates 12 act together to guide the air, prompting the air to pass through the gap between the two horizontal temperature guiding members 11 on the outside of the high-temperature evaporation tube 8 and then enter the middle of the high-temperature evaporation tube 8, increasing the contact area between the air and the temperature guiding member 11, and thus improving the cooling effect on the air. The first air guiding strip 201 and the second air guiding strip 21 are also used to guide the air in the high-temperature evaporation chamber 102 to the middle of the high-temperature evaporation tube 8, further increasing the probability of air entering the middle of the high-temperature evaporation tube 8.

[0066] When no longer using the high-temperature evaporation tube 8 to cool the working chamber 101, the control terminal controls the telescopic end of the electric push rod 19 to drive the sliding plate 20 to move back to its original position. The sliding plate 20 drives all the rotating wheels 18 and all the temperature guiding members 11 to rotate back to their original positions. The control terminal simultaneously controls all the pneumatic telescopic rods 14 through the air pump to drive the adjacent temperature guiding plates 12 to return to their original positions. When the control terminal controls the plugging plate 10 to retract into the second fixing frame 4, when the inclined surface of the second air guiding strip 21 contacts the second fixing frame 4, it is squeezed back into the plugging plate 10 by the second fixing frame 4, and the spring telescopic rod 22 compresses and stores energy. The second air guiding strip 21 does not prevent the plugging plate 10 from retracting into the second fixing frame 4.

[0067] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be construed in any way as a limitation on the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can readily conceive of other specific implementation manners of the embodiments of the present invention without creative efforts, and these manners will fall within the protection scope of the present invention.

Claims

1. An ultra-low temperature high-efficiency refrigeration device, characterized in that: Included are: A box body (1), wherein a working chamber (101), a high-temperature evaporation chamber (102), a low-temperature condensation chamber (103) and a low-temperature evaporation chamber (104) are arranged in the box body (1), an environmental refrigeration module and a plurality of air guides (2) are installed in the box body (1), and a first fixing frame (3), a second fixing frame (4), a low-temperature evaporation tube (5) and an electric slide rail (6) are fixedly connected in the box body (1); a mounting plate (7) fixedly connected to the electric slide block of the electric slide rail (6); a high-temperature evaporation tube (8) fixedly connected to the mounting plate (7); a low-temperature condensation tube (9) fixedly connected to the second fixing frame (4); the low-temperature condensation tube (9) located in the low-temperature condensation chamber (103); the low-temperature evaporation tube (5) located in the low-temperature evaporation chamber (104); the electric slide rail (6) located in both the high-temperature evaporation chamber (102) and the low-temperature condensation chamber (103); and the electric slide rail (6) is used to drive the mounting plate (7) to move between the high-temperature evaporation chamber (102) and the low-temperature condensation chamber (103); A blocking plate (10) is slidably connected to the second fixing frame (4), wherein a driving module is arranged in the second fixing frame (4), and the driving module is used to control the movement of the blocking plate (10), thereby controlling the connection or disconnection between the high-temperature evaporation chamber (102) and the low-temperature condensation chamber (103); A heat conduction component, arranged on the high-temperature evaporation tube (8), and used to increase the heat exchange efficiency between the high-temperature evaporation tube (8) and the low-temperature condensation tube (9); The heat conducting component comprises: A plurality of heat conducting members (11) are provided, each of which is arranged on the high-temperature evaporating tube (8); the heat conducting member (11) is fixedly connected with heat conducting plates (12) which are arranged at intervals; when the high-temperature evaporating tube (8) is aligned with the low-temperature condensing tube (9), the heat conducting plates (12) are in contact with the low-temperature condensing tube (9); the heat conducting plates (12) are made of elastic material and are used to increase the contact area between the heat conducting plates (12) and the low-temperature condensing tube (9); a symmetrically distributed guide mechanism is provided on one side of the heat conducting member (11) close to an adjacent heat conducting plate (12); the guide mechanism is used to control the deformation state of the adjacent heat conducting plate (12).

2. The ultra-low temperature high-efficiency refrigeration device according to claim 1, characterized in that: The sum of the lengths of the two heat conducting plates (12) in the vertical direction is equal to the circumference of the outer circle of the cross section of the low-temperature condensing tube (9).

3. The ultra-low temperature high-efficiency refrigeration device according to claim 2, characterized in that: The guiding mechanism comprises: A sliding member (13) is slidably connected to a side of the heat conducting member (11) close to the adjacent heat conducting plate (12); the sliding member (13) is rotationally connected to the adjacent heat conducting plate (12); the heat conducting member (11) is fixedly connected to a pneumatic telescopic rod (14); the sliding member (13) is rotationally connected to a first connecting member (15); and the telescopic end of the pneumatic telescopic rod (14) is slidably and rotationally connected to the first connecting member (15); An extrusion assembly is arranged on the temperature conducting plate (12) and is used for further extruding the adjacent temperature conducting plate (12) so that the temperature conducting plate (12) and the low-temperature condensing tube (9) are fitted together.

4. The ultra-low temperature high-efficiency refrigeration device according to claim 3, characterized in that: The sliding member (13) is provided with an inclined surface on one side close to the adjacent heat conducting plate (12), and the inclined surface of the sliding member (13) is used to press the heat conducting plate (12) so that the heat conducting plate (12) and the adjacent low-temperature condensing tube (9) are fitted together.

5. The ultra-low temperature high-efficiency refrigeration device according to claim 4, characterized in that: The extrusion assembly comprises: an extrusion plate (16) rotatably connected to the adjacent sliding member (13), the extrusion plate (16) being used to extrude the heat conduction plate (12) to deform the heat conduction plate (12); The second connecting member (17) is rotatably connected to the adjacent extrusion plate (16), and the second connecting member (17) is rotatably connected to the adjacent first connecting member (15).

6. The ultra-low temperature high-efficiency refrigeration device according to claim 3, characterized in that: Also included are: An air guide mechanism is arranged on the mounting plate (7) and is used to increase the heat exchange efficiency between the high-temperature evaporation tube (8) and the outside air. The air guide mechanism comprises: There are a plurality of rotating wheels (18), all of which are rotatably connected to the mounting plate (7), the number of the rotating wheels (18) being equal to and corresponding to the number of the temperature conducting components (11), the rotating wheels (18) being fixedly connected to adjacent temperature conducting components (11), and the temperature conducting components (11) being rotatably connected to the high-temperature evaporation tubes (8); A driving assembly is arranged on the mounting plate (7) and is used to drive all the rotating wheels (18) to rotate together.

7. The ultra-low temperature high-efficiency refrigeration device according to claim 6, characterized in that: The drive assembly comprises: The electric push rod (19) is fixedly connected to the mounting plate (7), the telescopic end of the electric push rod (19) is fixedly connected to a sliding plate (20), and the rotating wheel (18) is meshed with the sliding plate (20) via a gear rack.

8. The ultra-low temperature high-efficiency refrigeration device according to claim 7, characterized in that: The mounting plate (7) is fixedly connected to first air guide strips (201) that are distributed at intervals, the blocking plate (10) is fixedly connected to spring telescopic rods (22) that are distributed at intervals, the telescopic ends of the spring telescopic rods (22) are fixedly connected to second air guide strips (21), the second air guide strips (21) are slidably connected to the blocking plate (10), and the second fixing frame (4) is used to squeeze the second air guide strips (21) so that the second air guide strips (21) are retracted into the blocking plate (10).

9. The ultra-low temperature high-efficiency refrigeration device according to claim 8, characterized in that: There is at least one second air guide strip (21) in the vertical plane where the first air guide strip (201) is located.

Images