A graphene heat dissipation device for a refrigerator

Abstract

The application relates to a graphene heat dissipation device for a refrigerator, which comprises a condenser, the condenser comprises a shell, a water inlet pipe is fixedly connected to the shell near the top, a water outlet pipe is arranged on the shell near the bottom, a cooling pipe is arranged in the condenser, the two ends of the cooling pipe are communicated with the water inlet pipe and the water outlet pipe respectively, a heat dissipation fan is fixedly connected to the side wall of the shell, a buffer mechanism is arranged on the water inlet pipe, the buffer mechanism comprises a heat dissipation cylinder fixedly connected to the water inlet pipe, the vertical section of the heat dissipation cylinder is polygonal, a shock-absorbing cylinder with a polygonal section is arranged on the inner wall of the heat dissorption cylinder, the vertical section of the shock-absorbing cylinder is the same as that of the heat dissorption cylinder, the two ends of the shock-absorbing cylinder are rotationally connected with the water inlet pipe, and the side length of the shock-absorbing cylinder is smaller than that of the heat dissorption cylinder. The application has the effect of more uniform cooling of graphene fluid.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigerator heat dissipation, and in particular to a graphene heat dissipation device for a refrigerator. BACKGROUND

[0002] The refrigeration device of the refrigerator is a condenser. The condenser generates heat during use. The generated heat exists in the interior of the refrigerator. Over time, the heat affects the refrigeration effect of the refrigerator and the service life of the condenser. Therefore, large refrigerators usually have an external condenser, that is, an external condenser is connected to the refrigerator.

[0003] A refrigerator heat dissipation device, referring to Figure 1 The heat dissipation device of the refrigerator includes a heat exchanger 2 connected to the refrigerator 1. The cold end of the heat exchanger 2 is provided with a cold end inlet and a cold end outlet. The hot end is provided with a hot end inlet and a hot end outlet. The heat exchanger 2 is connected to a condenser 3 and a water tank 4. The cold end outlet of the heat exchanger 2 is connected to the water inlet end of the condenser 3. The water outlet end of the condenser 3 is connected to the water tank 4. The water outlet end of the water tank 4 is connected to the cold end inlet of the heat exchanger 2. A water pump 5 is arranged on the water outlet end of the water tank 4. The hot end inlet and the hot end outlet of the heat exchanger 2 are connected to the refrigerator 1.

[0004] The conventional condenser 3 uses fluid as a heat transfer medium. Graphene has very good heat conduction performance and is the highest carbon material in terms of existing thermal conductivity. Therefore, graphene nanofluid can be used as a heat-carrying material. When the flow of the water pump 5 is increased, the graphene fluid in the water inlet end of the condenser 3 increases. The temperature of the graphene fluid after heat exchange through the heat exchanger 2 is relatively high. After the flow is increased, the temperature of the graphene fluid is reduced through the condenser 3. This easily leads to uneven cooling of the graphene fluid by the condenser 3 or failure to reach the predetermined temperature. SUMMARY

[0005] In order to cool the graphene fluid more uniformly and to make the graphene fluid reach the predetermined temperature, the present application provides a graphene heat dissipation device for a refrigerator.

[0006] The graphene heat dissipation device for a refrigerator provided by the present application adopts the following technical solution:

[0007] A graphene heat dissipation device for a refrigerator includes a condenser. The condenser includes a shell. An inlet pipe is fixedly connected to the shell near the top. An outlet pipe is arranged near the bottom. A cooling pipe is arranged in the condenser. The two ends of the cooling pipe are in communication with the inlet pipe and the outlet pipe, respectively. A heat dissipation fan is fixedly connected to the side wall of the shell. A buffer mechanism is arranged on the inlet pipe. The buffer mechanism includes a heat dissipation cylinder fixedly connected to the inlet pipe. The vertical cross section of the heat dissipation cylinder is polygonal. A shock-absorbing cylinder with a polygonal cross section is arranged on the inner wall of the heat dissipation cylinder. The vertical cross section of the shock-absorbing cylinder is the same as that of the heat dissipation cylinder. The two ends of the shock-absorbing cylinder are rotatably connected to the inlet pipe. The side length of the shock-absorbing cylinder is smaller than that of the heat dissipation cylinder.

[0008] By adopting the above technical scheme, the side length of the damping cylinder is smaller than that of the heat dissipation cylinder, so that the damping cylinder can rotate in the heat dissipation cylinder. When the graphene fluid flows into the damping cylinder, the damping cylinder rotates in the heat dissipation cylinder, which not only uniformly transmits the graphene fluid, but also reduces the pressure of the graphene fluid in the transmission process, thereby playing a role of buffering and stabilizing the flow. Therefore, when the pressure of the water pump increases, the graphene fluid can still be uniformly transmitted into the cooling pipe. The cooling fan blows air on the cooling pipe, and the graphene fluid is cooled more uniformly, so that the graphene fluid is cooled to a predetermined temperature.

[0009] Optionally, a plurality of grid plates are fixedly connected outside the heat dissipation cylinder, the grid plates are uniformly distributed along the axial direction of the heat dissipation cylinder, the grid plates are aluminum plates, and cooling fans are fixedly connected to the grid plates.

[0010] By adopting the above technical scheme, the grid plates are aluminum plates, the grid plates can guide the heat in the heat dissipation cylinder out, and the effect of dissipating heat of the graphene fluid in the damping cylinder is achieved. The cooling fan makes the airflow enter the grid, and the flowing airflow carries away the heat in the heat dissipation cylinder, thereby achieving the effect of dissipating heat of the graphene fluid in the damping cylinder.

[0011] Optionally, a spiral blade is fixedly connected to one end of the water inlet pipe close to the heat dissipation cylinder, and the spiral blade is arranged along the inner wall of the water inlet pipe.

[0012] By adopting the above technical scheme, the spiral blade makes the graphene fluid spiral forward along the inner wall of the water inlet pipe. On the one hand, the graphene fluid enters the damping cylinder in the tangential direction of the damping cylinder, so that the graphene fluid generates an impact force on the inner wall of the damping cylinder to drive the damping cylinder to rotate in the heat dissipation cylinder. On the other hand, when the pressure of the water pump increases, the spiral blade can block the graphene fluid, so that the graphene fluid is uniformly transmitted forward, thereby playing a role of buffering the graphene fluid.

[0013] Optionally, a plurality of heat dissipation plates are fixedly connected to the outer side wall of the water inlet pipe corresponding to the spiral blade, the heat dissipation plates are aluminum plates, and cooling fans are fixedly connected to the heat dissipation plates.

[0014] By adopting the above technical scheme, the heat dissipation plates are aluminum plates, the heat dissipation plates are uniformly distributed along the axial direction of the water inlet pipe, and gaps for the airflow to pass through are formed between adjacent heat dissipation plates. The spiral blade prolongs the contact time of the graphene fluid with the water inlet pipe. The heat dissipation plates can guide the heat in the water inlet pipe out, thereby dissipating heat of the graphene fluid. The cooling fan can increase the airflow passing through the gaps between the heat dissipation plates. The airflow carries away the heat on the surface of the water inlet pipe, thereby further cooling the graphene fluid in the water inlet pipe.

[0015] Optionally, the shell is provided with an auxiliary cooling mechanism; the auxiliary cooling mechanism comprises a cooling box arranged on one side of the shell, a refrigeration fin is arranged in the cooling box, a water spraying pipe is fixedly connected to the top of the cooling box, a water supply pump is fixedly connected to the water spraying pipe, the water spraying pipe extends above the cooling pipe, and a plurality of atomizing nozzles are fixedly connected to the outer side wall of the water spraying pipe in the axial direction.

[0016] By adopting the above technical scheme, the atomizing nozzles can atomize the low-temperature water in the water spraying pipe into water mist and spray it towards the cooling pipe, the low-temperature water mist is directly sprayed on the cooling pipe of the condenser to vaporize and absorb heat, so that the overall heat dissipation amount of the condenser is increased, the heat dissipation efficiency is improved, the atomizing nozzles generate atomized water droplets, the tiny water droplets are taken to the surface of the cooling pipe by the cooling air, the atomized water droplets will vaporize and absorb heat, and finally change into water vapor, the vaporization and heat absorption process of water is a state change process, under the condition of meeting the same heat dissipation amount, the water consumption of the atomized water droplets through the state change is much less than the water consumption required for the heat conduction of the liquid water directly sprayed on the cooling pipe, so that the waste of water resources is avoided, the cooling pipe can be cooled by spraying in addition to air cooling, so that the heat dissipation efficiency of the cooling pipe is improved, the water resources are saved, the cooling effect is good, and the heat dissipation of the condenser body is more thorough.

[0017] Optionally, a water-absorbing cotton strip is fixedly connected to the cooling pipe, and the water-absorbing cotton strip is wound outside the cooling pipe.

[0018] By adopting the above technical scheme, the water-absorbing cotton strip has water absorption, the atomized water droplets sprayed by the atomizing nozzles at the top can be better absorbed on the water-absorbing cotton strip, so that the contact area of the atomized water droplets and the cooling pipe can be increased, the cooling of the cooling pipe is more thorough, and the graphene fluid is more evenly cooled.

[0019] Optionally, a cotton cloth is arranged on the side of the shell away from the heat dissipation fan, the cotton cloth has water absorption, and the cotton strip abuts against the cotton cloth.

[0020] By adopting the above technical scheme, the cotton cloth has water absorption and can absorb the atomized water droplets sprayed by the nozzles, the atomized water droplets on the cotton cloth can be guided to the cooling pipe through the cotton strip, and the cooling of the cooling pipe is more thorough.

[0021] Optionally, a water receiving groove is fixedly connected to the inner bottom of the shell, a backflow pipe is fixedly connected to the water receiving groove, and one end of the backflow pipe away from the water receiving groove is fixedly connected to the cooling box.

[0022] By adopting the above technical scheme, the water receiving groove is used for receiving the water droplets dripping from the cotton strip, and the backflow pipe returns the water collected in the water receiving groove to the water receiving groove for recycling, so that the waste of water resources can be reduced.

[0023] Optionally, a plurality of baffles are fixedly connected to the cooling pipe, the baffles are vertically arranged, and the baffles are aluminum plates.

[0024] By adopting the technical scheme, the baffle can guide the heat on the surface of the cooling pipe out, and further play a role of heat dissipation and cooling for the graphene fluid in the cooling pipe.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. By setting a spiral blade in the water inlet pipe, setting a heat dissipation cylinder in the water inlet pipe, the vertical section of the heat dissipation cylinder is polygonal, a shock-absorbing cylinder with a polygonal cross section is arranged on the inner wall of the heat dissipation cylinder, the vertical section of the shock-absorbing cylinder is the same as that of the heat dissipation cylinder, the shock-absorbing cylinder is rotatably connected to the water inlet pipe at both ends, and the side length of the shock-absorbing cylinder is smaller than that of the heat dissipation cylinder, so that the shock-absorbing cylinder can rotate in the heat dissipation cylinder, the spiral blade makes the graphene fluid transmit spirally along the inner wall of the water inlet pipe, on the one hand, the graphene fluid enters the shock-absorbing cylinder in the tangential direction of the shock-absorbing cylinder, so that the graphene fluid generates an impact force on the inner wall of the shock-absorbing cylinder, and drives the shock-absorbing cylinder to rotate in the heat dissipation cylinder, which not only plays a role of uniform transmission of the graphene fluid, but also reduces the pressure of the graphene fluid in the transmission process, and plays a role of buffering and stabilizing flow, on the other hand, when the pressure of the water pump increases, the spiral blade can block the graphene fluid, so that the graphene fluid is uniformly transmitted forward, and the graphene fluid is buffered, and the heat dissipation effect of the graphene fluid is better.

[0027] 2. By setting a cooling box on one side of the shell, setting a refrigeration sheet in the cooling box, fixedly connecting a water spraying pipe to the top of the cooling box, fixedly connecting a water supply pump to the water spraying pipe, extending the water spraying pipe to above the cooling pipe, and fixedly connecting a plurality of atomizing nozzles to the outer wall of the water spraying pipe along the axial direction, fixedly connecting a water absorbing cotton strip to the cooling pipe, and setting a cotton cloth on the shell, the cotton strip abuts against the cotton cloth, the atomizing nozzles can atomize the low-temperature water in the water spraying pipe into water mist and spray it to the cooling pipe, the atomized water droplets can be better absorbed on the water absorbing cotton strip, thereby increasing the contact area of the atomized water droplets with the cooling pipe, and the heat dissipation of the cooling pipe is more complete, and the low-temperature water mist is directly sprayed on the cooling pipe of the condenser to vaporize and absorb heat, so that the overall heat dissipation of the condenser is increased, and the heat dissipation efficiency is improved, the atomizing nozzles produce atomized water droplets, the tiny water droplets are taken to the surface of the cooling pipe by the cooling air, the atomized water droplets will vaporize and absorb heat, and finally change into water vapor, the vaporization and heat absorption process of water is a state change process, under the condition of meeting the same heat dissipation, the water consumption of the atomized water droplets through the state change is much less than that of the liquid water directly sprayed on the cooling pipe to produce heat conduction, so that the water resource is not wasted, the cooling pipe can not only be air-cooled for heat dissipation, but also be sprayed for cooling, so that the heat dissipation efficiency of the cooling pipe is improved, the water resource is saved, the cooling effect is good, and the heat dissipation of the condenser body is more complete. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1This is an attached diagram of a heat dissipation device in the background art.

[0029] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 3 This is a structural diagram designed to highlight the cooling fan.

[0031] Figure 4 This is a cross-sectional view of the water inlet pipe and the buffer mechanism.

[0032] Figure 5 This is a cross-sectional view of the buffer mechanism.

[0033] Figure 6 This is a cross-sectional view of the condenser.

[0034] Figure 7 This is a structural diagram designed to highlight the cooling tank and the water pump.

[0035] Explanation of reference numerals in the attached drawings: 1. Freezer; 2. Heat exchanger; 3. Condenser; 31. Shell; 311. Cooling fan; 32. Inlet pipe; 33. Outlet pipe; 34. Cooling pipe; 35. Buffer mechanism; 351. Heat dissipation cylinder; 352. Shock absorber; 353. Grille; 354. Cooling fan; 355. Spiral blade; 356. Heat dissipation plate; 357. Cooling fan; 36. Auxiliary cooling mechanism; 361. Cooling tank; 362. Water spray pipe; 363. Water pump; 364. Atomizing nozzle; 365. Baffle; 366. Absorbent cotton strip; 367. Cotton cloth; 368. Water receiving trough; 369. Return pipe; 4. Water tank; 5. Water pump. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0037] This application discloses a graphene heat dissipation device for a refrigerator. (See also...) Figure 2 and Figure 3 A graphene heat dissipation device for a freezer includes a condenser 3 connected to a freezer 1. The condenser 3 includes a housing 31. A water inlet pipe 32 is fixedly connected to the top of the housing 31, and a water outlet pipe 33 is provided near the bottom. A cooling pipe 34 is provided inside the condenser 3. The two ends of the cooling pipe 34 are connected to the water inlet pipe 32 and the water outlet pipe 33, respectively. The cooling pipe 34 is arranged in a serpentine pattern inside the housing 31. A cooling fan 311 is fixedly connected to the side wall of the housing 31. The cooling fan 311 blows air onto the cooling pipe 34 to facilitate heat dissipation and cooling of the graphene fluid inside the cooling pipe 34.

[0038] In order to ensure that the graphene fluid can enter the cooling pipe 34 evenly, a buffer mechanism 35 is provided on the water inlet pipe 32.

[0039] Referring to Figure 4 and Figure 5 The buffering mechanism 35 comprises a heat dissipation cylinder 351 fixedly connected to the water inlet pipe 32, the vertical section of the heat dissipation cylinder 351 is a polygon, and the heat dissipation cylinder 351 is shown as a regular hexagon in the figure, but is not limited to a regular hexagon, the inner wall of the heat dissipation cylinder 351 is provided with a shock absorption cylinder 352 with a regular polygonal cross section, the vertical section of the shock absorption cylinder 352 is the same as that of the heat dissipation cylinder 351, and the heat dissipation cylinder 351 is also shown as a regular hexagon in the figure, the two ends of the shock absorption cylinder 352 are rotationally connected to the water inlet pipe 32, and the heat dissipation cylinder 351 is arranged on the outer side wall of the shock absorption cylinder 352, wherein the side length of the shock absorption cylinder 352 is smaller than that of the heat dissipation cylinder 351, so that the shock absorption cylinder 352 can rotate in the heat dissipation cylinder 351, and when the graphene fluid flows into the shock absorption cylinder 352, the shock absorption cylinder 352 rotates in the heat dissipation cylinder 351, which not only plays a role in uniformly transmitting the graphene fluid, but also reduces the pressure in the process of transmitting the graphene fluid, thereby playing a role in buffering and stabilizing the flow.

[0040] The heat dissipation cylinder 351 is fixedly connected to a plurality of grid plates 353, the grid plates 353 are uniformly distributed along the axial direction of the heat dissipation cylinder 351, the grid plates 353 are aluminum plates, the grid plates 353 can guide the heat in the heat dissipation cylinder 351 outwards, thereby achieving the effect of dissipating heat of the graphene fluid in the shock absorption cylinder 352, and the grid plates 353 are fixedly connected to cooling fans 354, the cooling fans 354 make the airflow enter the grid, and the flowing airflow carries away the heat in the heat dissipation cylinder 351, thereby achieving the effect of dissipating heat of the graphene fluid in the shock absorption cylinder 352.

[0041] Further, the water inlet pipe 32 is fixedly connected with a spiral blade 355, the spiral blade 355 is arranged along the inner wall of the water inlet pipe 32, the spiral blade 355 is located at one end of the water inlet pipe 32 close to the heat dissipation cylinder 351, the spiral blade 355 makes the graphene fluid transmit forward along the inner wall of the water inlet pipe 32 in a spiral manner; on one hand, the graphene fluid enters into the damping cylinder 352 in a tangential direction of the damping cylinder 352, so that the graphene fluid generates an impact force on the inner wall of the damping cylinder 352, and drives the damping cylinder 352 to rotate in the heat dissipation cylinder 351; on the other hand, when the pressure of the water pump 5 increases, the spiral blade 355 can block the graphene fluid, so that the graphene fluid is uniformly transmitted forward, and the graphene fluid is buffered. The outer side wall of the water inlet pipe 32 is fixedly connected with a plurality of heat dissipation plates 356, the heat dissipation plates 356 are aluminum plates, the heat dissipation plates 356 are uniformly distributed along the axial direction of the water inlet pipe 32, gaps for airflow to pass through are formed between adjacent heat dissipation plates 356, the spiral blade 355 prolongs the contact time of the graphene fluid and the water inlet pipe 32, and the heat dissipation plates 356 can conduct heat in the water inlet pipe 32 outwards, thereby dissipating heat for the graphene fluid. The heat dissipation plates 356 are fixedly connected with a cooling fan 357, the cooling fan 357 can increase the airflow passing through the gaps between the heat dissipation plates 356, the airflow carries away the heat on the surface of the water inlet pipe 32, and further cools the graphene fluid in the water inlet pipe 32.

[0042] Looking back Figure 2 In order to cool the graphene fluid in the shell 31 more thoroughly, the shell 31 is provided with an auxiliary cooling mechanism 36.

[0043] Referring to Figure 6 and Figure 7The auxiliary cooling mechanism 36 comprises a cooling box 361 arranged on one side of the shell 31, the cooling box 361 is internally provided with a refrigeration fin (not shown in the figure), the top of the cooling box 361 is fixedly connected with a water spraying pipe 362, the water spraying pipe 362 is fixedly connected with a water supply pump 363, the water spraying pipe 362 extends to the upper side of the cooling pipe 34, and a plurality of atomizing nozzles 364 are uniformly fixedly connected to the outer side wall of the water spraying pipe 362 in the axial direction. The atomizing nozzles 364 can atomize the low-temperature water mist in the water spraying pipe 362 into water mist and spray it to the cooling pipe 34, the low-temperature water mist is directly sprayed on the cooling pipe 34 of the condenser 3 to vaporize and absorb heat, so that the overall heat dissipation amount of the condenser 3 is increased, the heat dissipation efficiency is improved, the atomizing nozzles 364 generate atomized water droplets, the tiny water droplets are taken to the surface of the cooling pipe 34 by the cooling air, the atomized water droplets will vaporize and absorb heat, and finally change into water vapor. The vaporization and heat absorption process of water is a state transition process. Under the condition of meeting the same heat dissipation amount, the water consumption of the atomized water droplets through the state phase change is much less than the water consumption required for the heat conduction of the liquid water directly sprayed on the cooling pipe 34, so that the waste of water resources is avoided. In addition to air cooling heat dissipation, the cooling pipe 34 can also be sprayed to cool the cooling pipe 34, so as to improve the heat dissipation efficiency of the cooling pipe 34. The saved water resources have good cooling effect, and the heat dissipation of the condenser 3 body is more thorough.

[0044] A plurality of baffles 365 are fixedly connected to the cooling pipe 34, the baffles 365 are vertically arranged, gaps for air flow to pass through are formed between adjacent baffles 365, the baffles 365 are aluminum plates and can dissipate heat for the cooling pipe 34. The cooling pipe 34 is fixedly connected with a water-absorbing cotton strip 366 between adjacent baffles 365, the water-absorbing cotton strip 366 is wound on the cooling pipe 34, the water-absorbing cotton strip 366 has water absorption, the atomized water droplets sprayed by the atomizing nozzles 364 at the top can be better absorbed on the water-absorbing cotton strip 366, so as to increase the contact area of the atomized water droplets with the cooling pipe 34, dissipate heat for the cooling pipe 34 more thoroughly, and make the graphene fluid dissipate heat more uniformly.

[0045] A cotton cloth 367 is arranged on the side of the shell 31 away from the heat dissipation fan 311, the cotton cloth 367 has water absorption and can absorb the atomized water droplets sprayed by the nozzles, the cotton strip abuts against the cotton cloth 367, and the atomized water droplets on the cotton cloth 367 can be guided to the cooling pipe 34 through the cotton strip, so as to cool the cooling pipe 34 more thoroughly.

[0046] The implementation principle of the graphene heat dissipation device for the refrigerator is as follows: the graphene fluid after heat exchange through the heat exchanger 2 flows into the condenser 3 through the water inlet pipe 32, the spiral blade 355 is the graphene fluid spirally entering into the damping cylinder 352 along the inner wall of the water inlet pipe 32, the cooling fan 357 on the heat dissipation plate 356 and the heat dissipation plate 356 perform the first heat dissipation on the graphene fluid in the water inlet pipe 32, and the spiral blade 355 can buffer the graphene fluid, so that the graphene fluid is uniformly transmitted forward; then, the graphene fluid spirally transmitted along the inner wall of the water inlet pipe 32 enters into the damping cylinder 352 along the tangent direction of the damping cylinder 352, the impact force of the graphene fluid makes the damping cylinder 352 rotate in the heat dissipation cylinder 351, so that the effect of vibration stabilization, flow stabilization and pressure reduction is achieved; in addition, the cooling fan 354 arranged on the grid plate 353 can accelerate the air circulation in the heat dissipation cylinder 351, and further heat dissipate the graphene fluid in the damping cylinder 352. The graphene fluid after pressure reduction and flow stabilization by the damping cylinder 352 enters into the cooling pipe 34, the heat dissipation fan 311 on the outer side wall of the shell 31 can increase the air circulation on the surface of the cooling pipe 34, and can air-cool and cool the graphene fluid in the cooling pipe 34; the atomizing nozzle 364 on the water spraying pipe 362 can atomize the low-temperature water into water droplets and spray the water droplets to the cooling pipe 34, the low-temperature water droplets are directly sprayed to the cooling pipe 34 of the condenser 3 to vaporize and absorb heat, so that the overall heat dissipation amount of the condenser 3 is increased, the heat dissipation efficiency is improved, the cooling pipe 34 can be cooled and heat dissipated in addition to air-cooling and heat dissipation, so that the heat dissipation efficiency of the cooling pipe 34 is improved, the water resource is saved, the cooling effect is good, and the graphene fluid is cooled more completely by the condenser 3.

[0047] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A graphene heat dissipation device for a freezer, comprising a condenser (3), the condenser (3) comprising a housing (31), an inlet pipe (32) fixedly connected near the top of the housing (31), an outlet pipe (33) disposed near the bottom, a cooling pipe (34) disposed inside the condenser (3), the two ends of the cooling pipe (34) being connected to the inlet pipe (32) and the outlet pipe (33) respectively, and a heat dissipation fan (311) fixedly connected to the side wall of the housing (31), characterized in that: A buffer mechanism (35) is provided on the water inlet pipe (32); The buffer mechanism (35) includes a heat sink (351) fixedly connected to the water inlet pipe (32). The vertical cross-section of the heat sink (351) is polygonal. The inner wall of the heat sink (351) is provided with a shock absorber (352) with a polygonal cross-section. The shape of the vertical cross-section of the shock absorber (352) is the same as that of the heat sink (351). The two ends of the shock absorber (352) are rotatably connected to the water inlet pipe (32), and the side length of the shock absorber (352) is smaller than that of the heat sink (351). A spiral blade (355) is fixedly connected inside the water inlet pipe (32) near the heat sink (351). The spiral blade (355) is located at the end of the heat sink away from the cooling pipe (34). The spiral blade (355) is arranged along the inner wall of the water inlet pipe (32). The spiral blade (355) causes the graphene fluid to spiral forward along the inner wall of the water inlet pipe (32), so that the graphene fluid enters the shock absorber (352) along the tangential direction, so that the graphene fluid generates an impact force on the inner wall of the shock absorber (352), and drives the shock absorber (352) to rotate inside the heat sink (351).

2. The graphene heat dissipation device for a freezer according to claim 1, characterized in that: Multiple grid plates (353) are fixedly connected to the outside of the heat sink (351). The grid plates (353) are evenly distributed along the axial direction of the heat sink (351). The grid plates (353) are made of aluminum plates, and a cooling fan (354) is fixedly connected to the grid plates (353).

3. The graphene heat dissipation device for a freezer according to claim 1, characterized in that: The water inlet pipe (32) is fixedly connected to the outer wall of the spiral blade (355) with multiple heat dissipation plates (356). The heat dissipation plates (356) are aluminum plates, and cooling fans (357) are fixedly connected to the heat dissipation plates (356).

4. A graphene heat dissipation device for a freezer according to claim 1, characterized in that: An auxiliary cooling mechanism (36) is provided on the housing (31); The auxiliary cooling mechanism (36) includes a cooling box (361) disposed on one side of the housing (31), a cooling plate is disposed inside the cooling box (361), a water spray pipe (362) is fixedly connected to the top of the cooling box (361), a water pump (363) is fixedly connected to the water spray pipe (362), the water spray pipe (362) extends above the cooling pipe (34), and multiple atomizing nozzles (364) are uniformly fixedly connected to the outer wall of the water spray pipe (362) along its axial direction.

5. A graphene heat dissipation device for a freezer according to claim 4, characterized in that: The cooling pipe (34) is provided with absorbent cotton strips (366), which are wrapped around the outside of the cooling pipe (34).

6. A graphene heat dissipation device for a freezer according to claim 5, characterized in that: A cotton cloth (367) is provided on the side of the housing (31) away from the heat dissipation fan (311). The cotton cloth (367) is absorbent, and the absorbent cotton strip (366) abuts against the cotton cloth (367).

7. A graphene heat dissipation device for a freezer according to claim 4, characterized in that: A water receiving tank (368) is fixedly connected to the bottom of the housing (31), and a return pipe (369) is fixedly connected to the water receiving tank (368). The end of the return pipe (369) away from the water receiving tank (368) is fixedly connected to the cooling box (361).

8. A graphene heat dissipation device for a freezer according to claim 1, characterized in that: Multiple baffles (365) are fixedly connected to the cooling pipe (34). The baffles (365) are arranged vertically and are made of aluminum plates.

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