Liquid-cooling water drainage structure with heat dissipation coating

By spraying a nano-diamond rhombic block matrix coating onto the surface of the heat dissipation fins, the problem of limited passive heat dissipation effect of heat dissipation fins in existing liquid cooling devices is solved, and the heat dissipation area and heat conversion efficiency are significantly improved.

CN223978934UActive Publication Date: 2026-03-06STARFAN (HUIZHOU) TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing liquid cooling devices, the passive heat dissipation effect of heat sink fins is limited by materials and shape, and it is impossible to improve heat conversion efficiency without changing the existing structure.

Method used

A diamond-shaped matrix coating composed of nanodiamonds is applied to the surface of the heat sink fins using a spraying technique, which increases the heat dissipation area and improves the heat conversion efficiency.

Benefits of technology

The heat dissipation area is increased by 8%-25%, and the heat conversion efficiency is improved by 15%-35%, achieving a significant improvement in heat dissipation without changing the existing shape and materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liquid cooling water drainage structure with a heat dissipation coating, which comprises a water path assembly and heat dissipation fins, the water path assembly comprises a first water tank, a second water tank and a plurality of flat pipelines arranged between the first water tank and the second water tank, the first water tank is provided with a partition plate, and the heat dissipation fins are arranged on the partition plate. The first water tank is divided into a water outlet channel and a water inlet channel by the partition plate, the water outlet channel, the flat pipelines and the water inlet channel define a one-way flow channel, and the cooling fins are arranged on the side walls of the flat pipelines and composed of continuously-bent fin bodies. A coating is arranged on the peripheral wall of each heat dissipation fin, each coating is composed of a plurality of rhombic blocks which are arranged in a protruding mode, the rhombic blocks are nano diamonds, and the rhombic blocks are distributed in a matrix mode or completely cover the rhombic blocks. The nano diamonds have a good heat dissipation effect, so that the heat conversion efficiency of the heat dissipation fins is effectively improved; compared with the existing radiating fins, the radiating area of the nano diamonds can be increased.
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Description

Technical Field

[0001] This utility model relates to the field of liquid cooling products, and in particular to a liquid cooling water drain structure with a heat dissipation coating. Background Technology

[0002] Existing liquid cooling devices generally use radiator structures to achieve heat dissipation through liquid cooling flat pipes, such as computer water cooling radiators, mobile phone cooling radiators, and computer room cooling radiators. The radiator is mainly composed of bent heat dissipation fins.

[0003] Existing heat sinks are generally made of copper or aluminum sheets to achieve rapid heat dissipation through liquid cooling flat pipes. The heat dissipation efficiency of the heat sinks is generally determined by the fan speed. When the fan speed decreases, the active heat dissipation of the heat sinks also decreases.

[0004] Current practices typically involve using materials with higher heat dissipation efficiency to manufacture heat sink fins. Therefore, the key to the design is how to improve the passive heat dissipation of heat sink fins without changing their existing shape, structure, and materials. Utility Model Content

[0005] The main purpose of this invention is to propose a liquid cooling water duct structure with a heat dissipation coating. By covering the surface of the heat dissipation fins with a heat dissipation coating, the heat dissipation area can be increased without changing the existing product, thereby improving the passive heat dissipation effect and effectively improving the heat conversion efficiency.

[0006] To achieve the above objectives, this utility model proposes a liquid-cooled water duct structure with a heat dissipation coating, comprising:

[0007] A water system assembly, comprising a first water tank, a second water tank, and a plurality of flat pipes disposed between the first water tank and the second water tank, wherein the first water tank is provided with a partition, the partition dividing the first water tank into an outlet channel and an inlet channel, and the outlet channel, the plurality of flat pipes and the inlet channel forming a unidirectional flow channel;

[0008] Heat dissipation fins are disposed on the side wall of a flat pipe, and the heat dissipation fins are composed of continuously bent plates;

[0009] The outer peripheral wall of the heat dissipation fins is provided with a coating, which is composed of several protruding rhomboid blocks. The rhomboid blocks are nanodiamonds, and the rhomboid blocks are distributed in a matrix or completely cover the surface.

[0010] The nanodiamonds are formed by matrix spraying or completely sprayed by a spraying device.

[0011] In actual design, unlike existing designs, nanodiamonds are mixed with a predetermined solution and then sprayed or attached to the heat dissipation fins, thereby forming a matrix distribution of droplets on the heat dissipation fins. This can achieve a rhomboid matrix structure, thereby increasing the heat dissipation area. At the same time, nanodiamonds have a good heat dissipation effect, effectively improving the heat conversion efficiency of the heat dissipation fins.

[0012] Specifically, the production of nanodiamonds is accomplished using the graphite detonation method. Traditional crushing and grinding techniques can only process diamond powder to 200 nanometers, which is not enough to create nanoscale structural units.

[0013] Nanodiamonds are spherical nanoscale materials instantaneously synthesized by detonating TNT and RDX under high pressure (200,000 atmospheres) and high temperature (3000K). They possess the dual properties of nanoparticles and ultrahard materials and are the most thermodynamically stable nanostructure unit.

[0014] In practical applications, the content of nanodiamonds in the heat dissipation coating can be set according to actual needs. Nanodiamonds can also be mixed with nanographene for mixed spraying or mixed coating.

[0015] The specific spraying device can be a digital spraying device, which has several nozzles, through which nano-diamonds mixed with liquid are mixed with UV adhesive (or other admixtures) to form a coating by matrix spraying.

[0016] Its heat dissipation area can be increased by 8%-25% compared with existing heat dissipation fins, and its heat conversion efficiency can be increased by 15%-35%.

[0017] Specifically, different heat exchange efficiencies are achieved by varying the matrix distribution density of the rhombic blocks and the content of nanodiamonds. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a water-cooled radiator;

[0019] Figure 2 Sectional view of the water-cooled radiator Figure 1 ;

[0020] Figure 3 Sectional view of the water-cooled radiator Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the coating.

[0022] Figure 5 This is a schematic diagram showing the connection between the water-cooled radiator and the water pump.

[0023] Figure 6 This is a cross-sectional view of the drive pump;

[0024] Figure 7A three-dimensional schematic diagram of the drive pump;

[0025] Figure 8 This is a schematic diagram of a heat sink.

[0026] In the picture,

[0027] 1 represents the water system assembly, 11 represents the first water tank, and 12 represents the second water tank.

[0028] 2 is a flat pipe.

[0029] 3 represents heat dissipation fins, and 31 represents diamond-shaped blocks.

[0030] 4 is the injection port, and 41 is the rubber stopper.

[0031] 5 is the water pump, 50 is the water-cooling plate, 51 is the upper shell, 52 is the drive cavity, 53 is the positioning shell, 54 is the pivot cavity, and 55 is the mounting cavity.

[0032] 6 is the stator.

[0033] 7 represents the rotor, 71 represents the main body, 72 represents the permanent magnet, and 73 represents the impeller.

[0034] 8 is the shaft, 81 is the first bearing, and 82 is the second bearing. Detailed Implementation

[0035] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0036] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0037] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0038] like Figures 1 to 8 As shown, a liquid cooling water duct structure with a heat dissipation coating includes:

[0039] Water circuit assembly 1, the water circuit assembly 1 includes a first water tank 11, a second water tank 12 and a plurality of flat pipes 2 disposed between the first water tank 11 and the second water tank 12, the first water tank 11 is provided with a partition, the partition divides the first water tank 11 into an outlet channel and an inlet channel, the outlet channel, the plurality of flat pipes 2 and the inlet channel form a unidirectional flow channel;

[0040] Heat dissipation fins 3 are disposed on the side wall of the flat pipe 2, and the heat dissipation fins 3 are composed of continuously bent plates;

[0041] The outer peripheral wall of the heat dissipation fin 3 is provided with a coating, which is composed of a number of protruding rhomboid blocks 31. The rhomboid blocks 31 are nano-diamonds, and the rhomboid blocks 31 are distributed in a matrix or completely cover the surface.

[0042] The nanodiamonds are formed by matrix spraying or completely sprayed by a spraying device.

[0043] In the actual design, unlike the existing design, nanodiamonds are mixed with a predetermined solution and then sprayed or attached to the heat dissipation fins 3, thereby forming a matrix distribution of droplets on the heat dissipation fins 3. This can achieve a rhomboid matrix structure, thereby increasing the heat dissipation area. At the same time, nanodiamonds have a good heat dissipation effect, effectively improving the heat conversion efficiency of the heat dissipation fins 3.

[0044] Specifically, the production of nanodiamonds is accomplished using the graphite detonation method. Traditional crushing and grinding techniques can only process diamond powder to 200 nanometers, which is not enough to create nanoscale structural units.

[0045] Nanodiamonds are spherical nanoscale materials instantaneously synthesized by detonating TNT and RDX under high pressure (200,000 atmospheres) and high temperature (3000K). They possess the dual properties of nanoparticles and ultrahard materials and are the most thermodynamically stable nanostructure unit.

[0046] In practical applications, the content of nanodiamonds in the heat dissipation coating can be set according to actual needs. Nanodiamonds can also be mixed with nanographene for mixed spraying or mixed coating.

[0047] The specific spraying device can be a digital spraying device, which has several nozzles. The nano-diamonds mixed with liquid are mixed with UV adhesive (or other adhering substances) through the nozzles to form a coating by matrix spraying.

[0048] Compared with the existing heat dissipation fins 3, its heat dissipation area can be increased by 8% to 25%, and its heat conversion efficiency can be increased by 15% to 35%.

[0049] Specifically, different heat exchange efficiencies are achieved by varying the matrix distribution density of the rhombic blocks 31 and the content of nanodiamonds.

[0050] Specifically, the first water tank 11 is provided with a liquid injection port 4, and a rubber stopper 41 is detachably installed on the liquid injection port 4. The rubber stopper 41 is connected to the liquid injection port 4 through a threaded structure, so that the coolant can be increased or decreased according to the fluid capacity.

[0051] Specifically, the water pump 5 includes a water-cooled plate 50, an upper shell 51 disposed on the upper wall of the water-cooled plate 50, and a drive pump, wherein the water-cooled plate 50 and the upper shell 51 form a drive cavity 52.

[0052] One end of the driving cavity 52 is connected to the input terminal, and the other end is connected to the output terminal.

[0053] The drive pump includes a stator 6 and a rotor 7. The rotor 7 is located in the drive chamber 52 to provide fluid with power. The stator 6 is located on the outer wall of the upper shell 51, thereby realizing the circulation of fluid. The lower wall of the water-cooled plate 50 is used to fit with the heating element, thereby achieving the predetermined heat dissipation requirements.

[0054] In this embodiment of the invention, the upper shell 51 is provided with an upwardly protruding positioning shell 53, which forms a pivot cavity 54.

[0055] The outer peripheral wall of the positioning shell 53 and the inner peripheral wall of the upper shell 51 form an installation cavity 55.

[0056] The stator 6 is a magnetic induction coil, and the magnetic induction coil is provided in a mounting cavity 55.

[0057] The rotor 7 includes a main body 71, a permanent magnet 72 disposed on the main body 71, and an impeller 73 disposed on the lower wall of the main body 71.

[0058] The permanent magnet 72 and the magnetic coil are at the same horizontal position, and the impeller 73 is rotated through magnetic tangency.

[0059] Compared to traditional water pumps, the built-in drive pump makes the upper housing 51 simpler and more convenient to use during injection molding and installation.

[0060] The structure of inner rotor 7 and outer stator 6 can further ensure rotational stability.

[0061] Specifically, the upper shell 51 extends downward from the center of the pivot cavity 54 with a rotating shaft 8, and the rotor 7 is mounted on the rotating shaft 8. The integrally formed rotating shaft 8 enables the rotor 7 to achieve a double bearing structure of the main body 71, thereby improving rotational stability.

[0062] In this embodiment of the utility model, a first bearing is provided between the rotating shaft 8 and the main body 71.

[0063] Specifically, a second bearing is provided between the inner wall of the main body 71 and the pivot cavity 54 to realize a double bearing structure; of course, it can also be a single bearing, wherein the ceramic second bearing can also reduce magnetic interference and improve the stability of electromagnetic drive.

[0064] In this embodiment of the invention, the first bearing and the second bearing are ceramic bearings, which can achieve the function of rust prevention.

[0065] Specifically, the stator has a ring-shaped structure.

[0066] The drive cavity is provided with a flow divider plate 9, and the lower wall of the flow divider plate is provided with spaced copper pillars 90. The copper pillars can not only increase the heat dissipation area, but also slow down the water flow and reduce noise.

[0067] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A liquid-cooled water plenum structure having a heat-dissipating coating, characterized by, The utility model relates to a water cooling system, including: Waterway assembly, the waterway assembly includes first water tank, second water tank and multiple flat pipes between first water tank and second water tank, first water tank is equipped with baffle, baffle divides first water tank into water outlet channel and water inlet channel, water outlet channel, several flat pipes and water inlet channel enclose one-way flow channel; The heat dissipation fin is provided on the side wall of the flat pipe, and the heat dissipation fin is composed of a continuous bending sheet body; The outer peripheral wall of the heat dissipation fin is provided with a coating, and the coating is composed of a plurality of convex rhombic blocks, the rhombic blocks are nano diamonds, and the rhombic blocks are arranged in a matrix or completely covered.

2. The liquid-cooled water plume structure with heat-dissipating coating of claim 1, wherein: The first water tank is provided with a liquid injection port, and a rubber plug is detachably mounted on the liquid injection port.

3. The liquid-cooled water plume structure having a heat dissipating coating of claim 1, wherein: The water outlet channel and the water inlet channel are connected with the input end and the input end of the water pump respectively. The water pump includes a water cooling plate, an upper shell provided on the upper wall of the water cooling plate, and a driving pump, the water cooling plate and the upper shell enclose a driving cavity, One end of the driving cavity is connected with the input end, and the other end is connected with the output end, The driving pump includes a stator and a rotor, the rotor is arranged in the driving cavity to provide fluid power, and the stator is arranged on the outer wall of the upper shell.

4. The liquid-cooled water plume structure having a heat dissipating coating of claim 3, wherein: The upper shell is provided with an upwardly convex positioning shell, and the positioning shell encloses a pivoting cavity, The outer peripheral wall of the positioning shell and the inner peripheral wall of the upper shell enclose a mounting cavity; The stator is a magnetic sensing coil, and the magnetic sensing coil is arranged in the mounting cavity; The rotor includes a main body, a permanent magnet arranged on the main body, and an impeller arranged on the lower wall of the main body, The permanent magnet and the magnetic sensing coil are in the same horizontal position.

5. The liquid-cooled water plume structure having a heat dissipating coating of claim 4, wherein: The upper shell extends downward from the middle of the pivoting cavity to a rotating shaft, and the rotor is arranged on the rotating shaft.

6. The liquid-cooled water plume structure having a heat dissipating coating of claim 5, wherein: The first bearing is arranged between the rotating shaft and the main body.

7. The liquid-cooled water plume structure having a heat dissipating coating of claim 6, wherein: The second bearing is arranged between the main body and the inner wall of the pivoting cavity.

8. The liquid-cooled water plume structure having a heat dissipating coating of claim 7, wherein: The first bearing and the second bearing are ceramic bearings.

9. The liquid-cooled water plume structure having a heat dissipating coating of claim 4, wherein: The stator is in a ring structure.

10. The liquid-cooled water plume structure having a heat dissipating coating of claim 3, wherein: The driving cavity is provided with a flow dividing plate, and the lower wall of the flow dividing plate is provided with copper columns arranged at intervals.