CN108036576B - Refrigerator cold-conducting device combined with pulsating heat pipe - Google Patents
Refrigerator cold-conducting device combined with pulsating heat pipe Download PDFInfo
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- CN108036576B CN108036576B CN201711347906.0A CN201711347906A CN108036576B CN 108036576 B CN108036576 B CN 108036576B CN 201711347906 A CN201711347906 A CN 201711347906A CN 108036576 B CN108036576 B CN 108036576B
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- 230000007246 mechanism Effects 0.000 claims abstract description 48
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 73
- 229910052802 copper Inorganic materials 0.000 claims description 71
- 239000010949 copper Substances 0.000 claims description 71
- 230000000712 assembly Effects 0.000 claims description 21
- 238000000429 assembly Methods 0.000 claims description 21
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 239000011888 foil Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005057 refrigeration Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a refrigerator cold-conducting device combining a pulsating heat pipe, which comprises a cold head mechanism and a pulsating heat pipe mechanism, wherein one end of the cold head mechanism is connected with a refrigerator, the other end of the cold head mechanism is connected with the pulsating heat pipe mechanism, the pulsating heat pipe mechanism is clung to the inner wall of a refrigerator body, the cold head mechanism comprises a cold head main body and a cold head shell component tightly fixed outside the cold head main body, the pulsating heat pipe mechanism is a closed heat pipe working medium circulation loop and passes between the cold head main body and the cold head shell component for a plurality of times, and the outer wall surface of the heat pipe working medium circulation loop is respectively tightly attached to the cold head main body and the cold head shell component; the cold head main body, the cold head shell and the pulsating heat pipe mechanism are combined, so that the heat exchange area of the cold head mechanism and the condensing section of the pulsating heat pipe mechanism is increased, the cold quantity is not lost, the cold conduction efficiency is high, and the use angle is not limited; the heat exchange is sufficient and uniform, and the processing and the manufacturing are simple and convenient.
Description
Technical Field
The invention relates to a cold guide device, in particular to a cold guide device of a refrigerator combined with a pulsating heat pipe, which belongs to the technical field of refrigeration and is suitable for cold energy transmission of low-temperature refrigeration equipment with smaller size such as a thermoacoustic refrigerator.
Background
The refrigerator cold-conducting device is a mechanism which is arranged at the cold end of the refrigerator and conducts out the cold quantity of the refrigerator, and the effective conduction of the cold quantity is one of the keys of the refrigerator for realizing rapid and efficient refrigeration.
The pulsating heat pipe is a loop formed by repeatedly bending a serpentine coreless capillary metal pipe between a cold end and a hot end, and the capillary is vacuumized and then filled with a certain amount of working medium. The working medium is heated and evaporated in the evaporation section, so that the pressure of the evaporation section rises to push the working medium to flow to the condensation section, bubbles shrink and burst in the condensation section, the pressure drops and flows back, and the transfer of latent heat and sensible heat is realized through self-excitation oscillation of the air column and the liquid plug. The pulsating heat pipe is used as a novel heat pipe, and overcomes the defect that a liquid suction core is needed or the conventional heat pipe is influenced by gravity. Under certain conditions, the pulsating heat pipe can operate at any inclination angle, and has little influence on heat transfer performance, and has wide application prospect in the refrigeration field. There is a chinese patent 20150521282.4 that discloses a low temperature refrigerator in which a stirling cooler is combined with a pulsating heat pipe, comprising a box body, a free piston stirling cooler, a pulsating heat pipe system, and a heat dissipation system. The method is characterized in that: the pulsating heat pipe system comprises a pulsating heat pipe and a cold guide plate pipe, wherein the cold end of the free piston Stirling refrigerator exchanges heat with the cold guide plate pipe, so that working medium in the pulsating heat pipe formed by a capillary copper pipe communicated with the cold guide plate pipe forms oscillation flow, and the pulsating heat pipe penetrates through all freezing chambers to cool. The cold guide plate has the defects that the area of the cold guide plate is too large, the contact area of the cold guide plate and a cold head of the free piston Stirling refrigerator is too small, and the problems of uneven temperature distribution and insufficient cold energy transmission of the cold guide plate are easily caused. Also, chinese patent 201611028741.6 discloses a split type temperature change zone refrigerator with one-piece two stirling refrigeration, characterized in that: the pulsating heat pipe cooling system comprises a pulsating heat pipe and an annular cooling copper sleeve, a condensing section of the pulsating heat pipe is wound in a spiral groove of the annular cooling copper sleeve, U-shaped pipes of an evaporating section are arranged on single side wall surfaces of two temperature changing chambers, and an internal charging working medium is R170. The annular cold-conducting copper sleeve has the defects that the processing difficulty of the spiral groove on the surface of the annular cold-conducting copper sleeve is high, only the inner side wall surface of the pulsating heat pipe is in contact with the spiral groove of the annular cold-conducting copper sleeve for heat exchange, the heat exchange area of the cold-conducting copper sleeve is not fully utilized, and the cold-conducting efficiency is low. For the above reasons, there is a need in the art to develop a cold conduction device of a refrigerator with a pulsating heat pipe, which has uniform cold energy transmission and high cold conduction efficiency, and which has the advantages of simple structure, convenient processing and manufacturing, no limitation of the use angle, and effective improvement of the rapid and efficient refrigeration performance of the refrigerator.
Disclosure of Invention
Aiming at the problems and the demands of the prior art, the invention aims to provide the refrigerator cold guide device combined with the pulsating heat pipe, which has the advantages of uniform cold energy transmission and high cold guide efficiency, and has the advantages of simple structure, convenient processing and manufacturing and no limitation of the use angle, so as to meet the application demands of people on effectively improving the rapid and efficient refrigeration performance of the refrigerator.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a refrigerator cold-conducting device that combines pulsating heat pipe, includes cold head mechanism and pulsating heat pipe mechanism, cold head mechanism one end is connected with the refrigerator, the other end with pulsating heat pipe mechanism is connected, pulsating heat pipe mechanism hugs closely in refrigerator box inner wall, its characterized in that: the cold head mechanism comprises a cold head main body and a cold head shell assembly, the cold head shell assembly is tightly fixed outside the cold head main body, the pulsating heat pipe mechanism is a closed heat pipe working medium circulation loop, the heat pipe working medium circulation loop passes through an annular groove formed between the cold head main body and the cold head shell assembly for a plurality of times, and the outer wall surface of the heat pipe working medium circulation loop is respectively tightly attached to the cold head main body and the cold head shell assembly.
As the preferred scheme, including controlling two sets of respectively closed setting the heat pipe working medium circulation return circuit, every group the heat pipe working medium circulation return circuit includes U type pipe subassembly and annular copper pipe subassembly, U type pipe subassembly with annular copper pipe subassembly is closed loop type intercommunication, control two sets of the U type pipe subassembly of heat pipe working medium circulation return circuit set up respectively in the left and right sides wall of refrigerator box, annular copper pipe subassembly set up in the annular groove, and respectively with the coldhead main part with the inseparable laminating of coldhead shell subassembly.
As a further preferred aspect, the U-shaped tube assembly is connected with the annular copper tube assembly by an externally insulated connecting tube assembly.
As a further preferable scheme, each group of the U-shaped pipe assemblies comprises 4-5U-shaped pipes which are arranged in parallel and in parallel, and each group of the annular copper pipe assemblies comprises annular copper pipes corresponding to the number of the U-shaped pipes of each group of the U-shaped pipe assemblies.
As a further preferable mode, the outer diameter of each U-shaped tube is 3mm, and the inner diameter of each U-shaped tube is 2mm.
As a further preferable scheme, the U-shaped pipe assembly is arranged in a downward inclination of 0-20 degrees along the horizontal direction.
As a preferable scheme, the liquid filling rate of the heat pipe working medium circulation loop is 40% -50%.
As a preferable scheme, an annular groove matched with the outer wall of the heat pipe working medium circulation loop is formed on the outer surface of the cold head main body or/and the inner side surface of the cold head shell component.
As a preferable scheme, the outer wall surface of the heat pipe working medium circulation loop, which is attached to the cold head main body, is coated with low-temperature-resistant heat conduction silicone grease.
As a preferable scheme, the heat pipe working medium circulation loop is tightly attached to the cold head shell assembly through an aluminum foil.
As a preferable scheme, the opposite side of the heat pipe working medium circulation loop, which is clung to the inner wall of the refrigerator body, is clung to the inner wall of the refrigerator body through the adhered aluminum foil of the refrigerator body, so as to increase the heat exchange area between the heat pipe working medium circulation loop and the refrigerator body.
As a preferable scheme, the cold head shell component is provided with a pipe inlet and outlet channel for receiving the annular copper pipe component.
As a further preferable scheme, the pipe inlet and outlet channels are a plurality of upper notches and a plurality of lower notches which are respectively formed in two sides of the cold head shell assembly, and the number of the upper notches and the number of the lower notches are respectively and correspondingly arranged in the number of U-shaped pipes on the left side and the right side of the refrigerator body.
Preferably, the inner top surface of the coldhead housing is fixed to the top surface of the coldhead body by adhesion.
In one embodiment, the cold head shell assembly comprises a cold head shell I and a cold head shell II which are symmetrically arranged left and right, and the cold head shell I and the cold head shell II are fixedly connected through welding.
Preferably, the material of the cold head main body is copper, and the material of the cold head shell component is copper.
Compared with the prior art, the invention has the following beneficial effects:
the cold head main body, the cold head shell and the pulsating heat pipe mechanism are combined, so that the heat exchange area of the cold head mechanism and the condensing section of the pulsating heat pipe mechanism is effectively increased, the cold quantity loss can be prevented, the cold guide efficiency is high, the defect that the gravity heat pipe is influenced by gravity is overcome, and the refrigeration equipment is not limited by the use angle; the aluminum foil attached to the refrigerator body is additionally arranged on the outer side of the U-shaped pipe assembly, so that the heat exchange area of the evaporation section of the pulsating heat pipe mechanism and the refrigerator body is increased, the cold conduction efficiency is further improved, the annular groove is tightly contacted with the annular copper ring, heat exchange is enabled to be full and uniform, machining and manufacturing are simple and convenient, machining cost is reduced, application requirements of people on effectively improving the rapid and efficient refrigerating performance of the refrigerator can be met, and compared with the prior art, the novel refrigerator has obvious progress and good popularization and application value.
Drawings
Fig. 1 is a schematic structural diagram of a cold-conducting device of a refrigerator with a pulsating heat pipe according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a refrigerator cold-conducting device without aluminum foil of a box body combined with pulsating heat pipes according to embodiment 1 of the present invention;
FIG. 3 is a cross-sectional view of a coldhead mechanism in accordance with embodiment 1 of the present invention;
FIG. 4 is a schematic diagram showing an exploded view of a cold head structure installed on a refrigerator according to embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a cold head main body equipped with a cold end heat exchanger according to embodiment 1 of the present invention;
FIG. 6 is a schematic structural diagram of a coldhead housing assembly provided in embodiment 1 of the present invention;
fig. 7 is a schematic structural diagram of a ring copper pipe of the connection interface provided in embodiment 1 of the present invention;
fig. 8 is a schematic structural diagram of a U-shaped tube assembly for attaching an aluminum foil to a box according to embodiment 1 of the present invention;
fig. 9 is a schematic structural diagram of a U-shaped tube of the connection interface provided in embodiment 1 of the present invention;
FIG. 10 is a cross-sectional view of a coldhead body provided in embodiment 2 of the present invention;
FIG. 11 is a schematic structural view of a coldhead housing I in accordance with embodiment 2 of the present invention;
fig. 12 is a schematic diagram of the connection relationship between a U-shaped tube assembly and an annular copper tube assembly according to embodiment 3 of the present invention.
The reference numerals in the figures are shown below: 1. a cold head mechanism; 11. a coldhead body; 12. a coldhead housing assembly; 121. an upper notch; 122. a lower notch; 123. a cold head shell I; 124. a cold head shell II; 13. an annular groove; 131. an outer annular groove; 132. an inner annular groove; 2. a pulsating heat pipe mechanism; 21. a U-shaped tube assembly; 211. a U-shaped tube; 22. an annular copper tube assembly; 221. an annular copper tube; 23. a connecting tube assembly; 24. an interface; 241-1, U-shaped pipe joint I; 241-2, U-shaped pipe joint II; 241-3, U-shaped tube interface III; 241-4, U-shaped pipe interface IV; 241-5, U-shaped pipe joint V; 241-6, U-shaped pipe joint VI; 241-7, U-shaped pipe joint VII; 241-8, U-shaped pipe joint VIII; 242-1, annular copper pipe interface I; 242-2, annular copper pipe interface II; 242-3, annular copper tube interface III; 242-4, annular copper pipe interface IV; 242-5, annular copper tube interface V; 242-6, annular copper pipe interface VI; 242-7, annular copper pipe interface VII; 242-8, annular copper pipe interface VIII; 3. a refrigerating machine; 4. a refrigerator body; 5. aluminum foil; 6. aluminum foil of the box body; 7. a cold end heat exchanger.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and the examples.
Example 1
Referring to fig. 1 to 12, the refrigerator cold-conducting device with a pulsating heat pipe provided in this embodiment includes a cold head mechanism 1 and a pulsating heat pipe mechanism 2, one end of the cold head mechanism 1 is connected with the refrigerator 3, the other end is connected with the pulsating heat pipe mechanism 2, the pulsating heat pipe mechanism 2 is tightly attached to an inner wall of a refrigerator box 4, the cold head mechanism 1 includes a cold head main body 11 and a cold head housing assembly 12, the cold head housing assembly 12 is tightly fixed on the outside of the cold head main body 11, the pulsating heat pipe mechanism 2 is a closed heat pipe working medium circulation loop, the heat pipe working medium circulation loop passes through an annular groove 13 formed between the cold head main body 11 and the cold head housing assembly 12 for multiple times, and an outer wall surface of the heat pipe working medium circulation loop is tightly attached to the cold head main body 11 and the cold head housing assembly 12 respectively.
In this embodiment, the heat pipe working medium circulation loop includes two groups of left and right closed loop, each group of heat pipe working medium circulation loop includes a U-shaped pipe assembly 21 and an annular copper pipe assembly 22, the U-shaped pipe assembly 21 is in closed loop communication with the annular copper pipe assembly 22, the U-shaped pipe assemblies 21 of the two groups of left and right heat pipe working medium circulation loops are respectively disposed in left and right side walls of the refrigerator case 4, and the annular copper pipe assemblies 22 are disposed in the annular grooves 13 and are respectively in close contact with the cold head main body 11 and the cold head housing assembly 22, as shown in fig. 1 and 4.
In this embodiment, as shown in fig. 1 and fig. 2, the U-shaped tube assemblies 21 and the annular copper tube assemblies 22 are connected by a connecting tube assembly 23 with an external insulation material, each group of U-shaped tube assemblies 21 includes 4-5U-shaped tubes 211 arranged in parallel and side by side, each group of annular copper tube assemblies 22 includes annular copper tubes 221 corresponding to the number of U-shaped tubes 211 of each group of U-shaped tube assemblies 21, each open-type annular copper tube 221 (as shown in fig. 7) and each end of each U-shaped tube 211 (as shown in fig. 9) are provided with an interface 24, and the interface 24 of each U-shaped tube is respectively communicated with the interface 24 of the corresponding annular copper tube 221 through the connecting tube assembly 23, so that the U-shaped tube assemblies 21 and the annular copper tube assemblies 22 of each group of heat pipe working medium circulation circuits form a closed heat pipe working medium circulation loop.
In this embodiment, the outer diameter of each of the U-shaped tubes 211 is 3mm, and the inner diameter of each of the U-shaped tubes 211 is 2mm.
In this embodiment, as shown in fig. 8 and 9, the filling rate of the heat pipe working medium circulation loop is 40% -50%, and the U-shaped pipe assembly 21 is inclined downward along the horizontal direction to form an included angle α, and in this preferred embodiment, the value of α ranges from 0 ° to 20 °.
Considering the adhesion between the outer wall surface of the heat pipe working medium circulation loop and the cold head main body 11 and the cold head housing assembly 12, in this embodiment, as shown in fig. 5 and 6, an annular groove 13 adapted to the outer wall of the heat pipe working medium circulation loop is formed on the outer surface of the cold head main body 11 or on the inner side surface of the cold head housing assembly 12.
Considering the cold conduction efficiency of the cold conduction device, in this embodiment, a layer of low temperature resistant heat conduction silicone grease is coated on the outer wall surface of the heat pipe working medium circulation loop, which is attached to the cold head main body 11, the heat pipe working medium circulation loop is tightly attached to the cold head shell component 12 through an aluminum foil 5, and the opposite side of the heat pipe working medium circulation loop, which is attached to the inner wall of the refrigerator box, is attached to the inner wall of the refrigerator box 4 through an attached box aluminum foil 6, so as to increase the heat exchange area between the heat pipe working medium circulation loop and the refrigerator box 4, as shown in fig. 1 and 8.
Considering the installation of the annular copper tube assembly, the cold head shell assembly 12 is provided with a pipe inlet and outlet channel for receiving the annular copper tube assembly 22, in this embodiment, the pipe inlet and outlet channel 121 is a plurality of upper slots 121 and a plurality of lower slots 122 respectively formed on two sides of the cold head shell assembly, and the number of the upper slots 121 and the number of the lower slots 122 are respectively set corresponding to the number of the U-shaped pipes 211 on the left and right sides of the refrigerator body, as shown in fig. 4 and 6.
Considering the installation of the coldhead housing assembly, as shown in fig. 4 and 6, the coldhead housing assembly 12 includes a coldhead housing i 123 and a coldhead housing ii 124 symmetrically disposed about each other, the coldhead housing i 123 and the coldhead housing ii 123 are fixedly connected by welding, and the coldhead housing assembly 12 is fixed to the top surface of the coldhead body 11 by applying an adhesive on the inner top surface.
To further improve the cold conducting efficiency, the cold head main body 11 and the cold head housing assembly 12 are made of materials with high thermal conductivity, for example: copper.
In addition, in this embodiment, as shown in fig. 3 and 5, the cold end heat exchanger 7 of the refrigerator is closely attached to the inner side of the cold head main body 11, in this embodiment, a slit heat exchanger is selected and used, the cold energy generated by the expansion refrigeration of the gas working medium (usually helium) in the expansion cavity of the refrigerator 3 is transferred to the whole cold head mechanism 1 through the cold end heat exchanger 7, and the cold energy is led out into the refrigerator box 4 by the cold head mechanism 1 through the pulsating heat pipe mechanism 2, so as to complete the cold conduction process of the refrigerator 3.
Example 2
As shown in fig. 10 and 11, the difference between the refrigerator cold-conducting device with pulsating heat pipe and embodiment 1 is that: the outer surface of the cold head main body is provided with a plurality of outer annular grooves 131, the inner side of the cold head shell is provided with a plurality of inner annular grooves 132, the arc inner side wall surface of the annular copper pipe 211 is clung to the outer annular grooves 131, the arc outer side wall surface of the annular copper pipe 211 is clung to the inner annular grooves 132 through aluminum foils 5, the number of the outer annular grooves 131 and the number of the inner annular grooves 132 are respectively corresponding to the number of the annular copper pipes, and the annular copper pipe assembly 22 is enabled to obtain the largest attaching area as much as possible with the cold head mechanism 1 through the arrangement.
As a preferred solution, the U-shaped tube assembly 21 in this embodiment is disposed inclined downward by 10 ° along the horizontal direction, so as to obtain a better gas working medium circulation effect.
Example 3
Referring to fig. 12, the difference between the refrigerator cold-conducting device with pulsating heat pipe provided in this embodiment and embodiment 1 is that, only in the specific implementation manner of the connection between the U-shaped pipe assembly 21 and the annular copper pipe assembly 22 of the heat pipe working medium circulation loop is:
the annular copper pipe assembly is sequentially provided with an annular copper pipe interface I242-1, an annular copper pipe interface II 242-2, an annular copper pipe interface III 242-3, an annular copper pipe interface IV 242-4, an annular copper pipe interface V242-5, an annular copper pipe interface VI 242-6, an annular copper pipe interface VII 242-7 and an annular copper pipe interface VIII 242-8 from left to right and from top to bottom, the U-shaped pipe assembly is sequentially provided with a U-shaped pipe interface I241-1, a U-shaped pipe interface II 241-2, a U-shaped pipe interface III 241-3, a U-shaped pipe interface IV 241-4, a U-shaped pipe interface V241-5, a U-shaped pipe interface VI 241-6, a U-shaped pipe interface VII 241-7 and a U-shaped pipe interface VIII 241-8 from top to bottom,
the annular copper pipe interface I242-1 is communicated with the U-shaped pipe interface I241-1 through the connecting pipe assembly,
the annular copper pipe interface II 242-2 is communicated with the U-shaped pipe interface VIII 241-8 through the connecting pipe assembly 23,
the annular copper pipe interface III 242-3 communicates with the U-shaped pipe interface III 241-3 via the connecting pipe assembly 23,
the annular copper pipe interface IV 242-4 is communicated with the U-shaped pipe interface II 241-2 through the connecting pipe assembly 23,
the annular copper pipe interface V242-5 communicates with the U-shaped pipe interface V241-5 through the connecting pipe assembly 23,
the annular copper pipe interface VI 242-6 is communicated with the U-shaped pipe interface IV 241-4 through the connecting pipe assembly 23,
the annular copper pipe interface VII 242-7 communicates with the U-shaped pipe interface VII 241-7 via the connecting pipe assembly 23,
the annular copper pipe interface VIII 242-8 is communicated with the U-shaped pipe interface VI 241-6 through the connecting pipe assembly 23;
the other group of heat pipe working medium circulation loops and the above group of heat pipe working medium circulation loops are symmetrically arranged in the other side wall of the refrigerator body 4, the interface connection mode of the U-shaped pipe assembly 21 and the annular copper pipe assembly 22 is the same as that of the above group of heat pipe working medium circulation loops, and the annular copper pipe 211 is communicated with the U-shaped pipe 221 sequentially through the connecting pipe assembly 23 to form a spiral circulation loop, so that the cold energy transmission of the heat pipe working medium circulation loop is more uniform.
In summary, the combined arrangement of the cold head main body, the cold head shell and the pulsating heat pipe mechanism not only effectively increases the heat exchange area of the cold head mechanism and the condensation section of the pulsating heat pipe mechanism, but also can prevent the cold quantity from losing, so that the cold conducting efficiency is high, the defect that the gravity heat pipe is influenced by gravity is overcome, and the refrigeration equipment is not limited by the use angle; the aluminum foil attached to the refrigerator body is additionally arranged on the outer side of the U-shaped pipe assembly, the heat exchange area of the evaporation section of the pulsating heat pipe mechanism and the refrigerator body is increased, the cold guide efficiency is further improved, and the annular groove is tightly contacted with the annular copper ring, so that heat exchange is complete and uniform, machining and manufacturing are simple and convenient, machining cost is reduced, and application requirements of people on effectively improving the quick and efficient refrigerating performance of the refrigerator can be met.
Finally, it is necessary to point out here that: the foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a refrigerator cold-conducting device that combines pulsating heat pipe, includes cold head mechanism and pulsating heat pipe mechanism, cold head mechanism one end is connected with the refrigerator, the other end with pulsating heat pipe mechanism is connected, pulsating heat pipe mechanism hugs closely in refrigerator box inner wall, its characterized in that: the cold head mechanism comprises a cold head main body and a cold head shell assembly, the cold head shell assembly is tightly fixed outside the cold head main body, the pulsating heat pipe mechanism is a closed heat pipe working medium circulation loop, the heat pipe working medium circulation loop passes through an annular groove arranged between the cold head main body and the cold head shell assembly for a plurality of times, and the outer wall surface of the heat pipe working medium circulation loop is tightly attached to the cold head main body and the cold head shell assembly respectively;
comprises a left group and a right group of heat pipe working medium circulation loops which are respectively and closely arranged, each group of heat pipe working medium circulation loop comprises a U-shaped pipe assembly and an annular copper pipe assembly, the U-shaped pipe assembly is communicated with the annular copper pipe assembly in a closed loop, the U-shaped pipe assemblies of the heat pipe working medium circulation loops of the left group and the right group are respectively arranged in the left side wall and the right side wall of the refrigerator body, and the annular copper pipe assemblies are arranged in the annular grooves and are respectively tightly attached to the cold head main body and the cold head shell assembly;
the U-shaped pipe assemblies are connected with the annular copper pipe assemblies through external heat-insulating connecting pipe assemblies, each group of U-shaped pipe assemblies comprises 4-5U-shaped pipes which are arranged in parallel and in parallel, and each group of annular copper pipe assemblies comprises annular copper pipes, the number of which corresponds to that of the U-shaped pipes of each group of U-shaped pipe assemblies;
the annular copper pipes in the left group and the right group are communicated with the U-shaped pipes sequentially through the connecting pipe assemblies to form a spiral circulation loop, so that the cold energy of the working medium circulation loop of the heat pipe is transmitted uniformly.
2. The chiller cold guide of claim 1, wherein: the outer diameter of each U-shaped pipe is 3mm, and the inner diameter of each U-shaped pipe is 2mm.
3. The chiller cold guide of claim 1, wherein: the U-shaped pipe assembly is arranged in a downward inclined mode of 0-20 degrees along the horizontal direction.
4. The chiller cold guide of claim 1, wherein: the liquid filling rate of the heat pipe working medium circulation loop is 40% -50%.
5. The chiller cold guide of claim 1, wherein: an annular groove matched with the outer wall of the heat pipe working medium circulation loop is formed in the outer surface of the cold head main body or/and the inner side surface of the cold head shell component.
6. The chiller cold guide of claim 1, wherein: the heat pipe working medium circulation loop is coated with low-temperature-resistant heat conduction silicone grease on the outer wall surface of the refrigerator body, or/and the heat pipe working medium circulation loop is tightly attached to the refrigerator shell assembly through aluminum foils arranged between the heat pipe working medium circulation loop and the refrigerator shell assembly, or/and the opposite side of the heat pipe working medium circulation loop, which is tightly attached to the inner wall of the refrigerator body, is tightly attached to the inner wall of the refrigerator body through the attached aluminum foils of the refrigerator body.
7. A refrigerator cold guide as claimed in any one of claims 1 to 6, wherein: the cold head shell assembly comprises a cold head shell I and a cold head shell II which are symmetrically arranged left and right, and the cold head shell I and the cold head shell II are fixedly connected through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711347906.0A CN108036576B (en) | 2017-12-15 | 2017-12-15 | Refrigerator cold-conducting device combined with pulsating heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711347906.0A CN108036576B (en) | 2017-12-15 | 2017-12-15 | Refrigerator cold-conducting device combined with pulsating heat pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108036576A CN108036576A (en) | 2018-05-15 |
| CN108036576B true CN108036576B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711347906.0A Active CN108036576B (en) | 2017-12-15 | 2017-12-15 | Refrigerator cold-conducting device combined with pulsating heat pipe |
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| CN1546932A (en) * | 2003-12-15 | 2004-11-17 | 浙江大学 | High efficiency low temperature heat transfer element based on natural circulation precooling process |
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| CN207688498U (en) * | 2017-12-15 | 2018-08-03 | 陕西仙童科技有限公司 | A kind of refrigeration machine cold guide apparatus of combination pulsating heat pipe |
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| CN1546932A (en) * | 2003-12-15 | 2004-11-17 | 浙江大学 | High efficiency low temperature heat transfer element based on natural circulation precooling process |
| CN203323885U (en) * | 2013-06-21 | 2013-12-04 | 中国科学院上海技术物理研究所 | Radial vibration and shock resistance type cold platform supporting structure |
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| CN106052258A (en) * | 2016-07-21 | 2016-10-26 | 上海理工大学 | Refrigerator having multiple temperature zones |
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