Liquid cooling heat release device

Abstract

To provide a liquid cooling heat radiator.SOLUTION: A liquid cooling heat radiator comprises a liquid cooling head, a liquid cooling radiator, and a transfusion tube connected between the liquid cooling head and the liquid cooling radiator. The liquid cooling radiator has a liquid pump box, a heat-dissipating radiator tube, and a liquid return box. The liquid pump box inside is divided into a heated liquid chamber and a cooled liquid chamber via an air shutoff space. A space in the heated liquid chamber is formed smaller than a space in the cooled liquid chamber, and thereby, heated liquid rapidly passes through the liquid pump box to enter the heat-dissipating radiator tube. This overcomes the following problem: heated liquid inside the liquid pump box easily stores heat and the heat is conducted to cooled liquid.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to the technical field of liquid cooling and heat dissipation for servers, and more particularly to a liquid cooling and heat dissipation device that is applied to dissipate heat from a processor installed in a server. [Background technology]

[0002] The processors of modern servers are prone to heat generation during operation, and conventional air-cooled heat dissipation devices are already inadequate for the needs and lack a wide range of options, so instead, liquid-cooled heat dissipation systems with better cooling efficiency are used. Conventional liquid-cooled heat dissipation systems are equipped with a liquid-cooled head, a liquid-cooled radiator, a liquid pump, and a liquid pipe to form a set of sealed liquid circulation systems. Among them, the liquid-cooled radiator has a diversion box, a return box, and a heat dissipation radiator pipe connected between the diversion box and the return box, and the inside of the diversion box is usually divided into an inlet chamber for hot liquid and an outlet chamber for cold liquid. When the liquid pump is operated, it causes the machining liquid to flow through the liquid cooling head, lowering the temperature of the processor and raising the temperature of the machining liquid to become hot liquid. This hot liquid enters the inlet chamber of the diversion box of the liquid cooling radiator, and then flows sequentially through one half of the heat dissipation radiator pipe, the return box, and the other half of the heat dissipation radiator pipe into the outlet chamber. At this time, the hot liquid has already dissipated heat and become cold liquid, and flows back into the liquid cooling head to cool the processor. Summary of the Invention [Problem to be solved by the invention]

[0003] When the above-mentioned hot liquid is present in the inlet chamber, heat is transferred to the cold liquid in the outlet chamber through the metal partition plate, so that the cold liquid after cooling is heated. In addition, the space of the conventional inlet chamber is formed to be the same size as the outlet chamber, so that the hot liquid cannot pass through the inlet chamber quickly and flow into the heat dissipation radiator pipe, resulting in heat accumulation of the hot liquid in the flow-through box, which then transfers heat to the front part of the entire water-cooled radiator (including the front end of the heat dissipation radiator pipe), and the cold liquid after heat dissipation may be heated when it flows through. In addition, the conventional heat dissipation radiator pipe has a large number of flat tubes and wave-shaped heat dissipation fins connected to both sides of the flat tubes, and the wave-shaped heat dissipation fins are in contact with the surface of the flat tubes only in a local line contact state, which affects the heat conduction efficiency between the flat tubes and the heat dissipation fins, resulting in a decrease in the heat dissipation effect. [Means for solving the problem]

[0004] The present invention has been made in consideration of the above, and its object is to provide a liquid cooling heat dissipation device in which the liquid pump box in the liquid cooling heat dissipation device is designed so that the hot liquid flowing into the liquid pump box can quickly pass through and flow into the heat dissipation radiator pipe to dissipate heat, thereby preventing heat accumulation of the hot liquid in the liquid pump box, and the air-blocking space in the liquid pump box is designed so that heat from the hot liquid cannot be conducted to the cold liquid, thereby preventing heat accumulation in the liquid pump box and preventing heat conduction from the hot liquid to the cold liquid in the liquid pump box.

[0005] In order to achieve the above-mentioned objective, the liquid cooling heat dissipation device of the present invention comprises a liquid cooling head used for installation on a processor, a liquid cooling radiator separate from the liquid cooling head used for heat dissipation, and two liquid infusion pipes connected between the liquid cooling head and the liquid cooling radiator. The liquid cooling radiator includes a liquid pump box including a box body made of metal and a box lid, a heat dissipation radiator pipe, and a liquid return box. The box body has a bottom wall and four peripheral sides. Wall and It is molded integrally from An opening is provided on the opposite side to the bottom wall., on the left or right wall of the box body , perpendicular to the bottom wall vertical direction To each Multiple arrays first Parallel pipe insertion hole and a plurality of second parallel pipe insertion holes but In parallel The heat dissipation radiator pipe is provided, The plates are arranged in two rows along a horizontal direction parallel to the bottom wall, and vertical direction To Layered The flat tube has a plurality of flat tubes arranged in a row and a plurality of heat dissipation fins joined to both upper and lower flat surfaces of the flat tube, and one end of the flat tube is connected to the box body. The first parallel pipe insertion hole or the second parallel pipe insertion hole the other end is inserted into the parallel pipe insertion hole and joined thereto, and the other end is inserted into the liquid return box and joined thereto, and an air blocking space is provided inside the box body, one end of the air blocking space is adjacent to the inner surface of the front wall of the box body, and the other end of the air blocking space is adjacent to the inner surface of the left side wall or the inner surface of the right side wall of the box body after being curved, ,before Note The first parallel pipe insertion hole and the second parallel pipe insertion hole Parallel pipe insertion hole and It is located in between. In the preferred technical solution of the liquid cooling heat dissipation device of the present invention, the structure of the liquid pump box in the liquid cooling radiator is designed such that the inside of the liquid pump box is divided into a hot liquid inlet chamber and a cold liquid outlet chamber by using the air blocking space, the hot liquid folded partition plate and the cold liquid folded partition plate, and the space of the hot liquid inlet chamber is smaller than the space of the cold liquid outlet chamber, so that the hot liquid flowing into the liquid pump box can quickly pass through and flow into the heat dissipation radiator pipe to dissipate heat, and the heat accumulation of the hot liquid in the liquid pump box is avoided. At the same time, the design of the air blocking space prevents the heat from the hot liquid flowing into the liquid pump box from being transferred to the cold liquid. The hot liquid entry chamber is The first The cooling liquid outlet chamber is connected to the parallel pipe insertion hole, The secondThe hot liquid inlet chamber and the cold liquid outlet chamber are partitioned so as not to communicate with the air blocking space, and a front wall of the box body is provided with an inlet pipe communicating with the hot liquid inlet chamber and an outlet pipe communicating with the cold liquid outlet chamber, and the air blocking space includes a hot liquid folded partition plate and a cold liquid folded partition plate arranged at intervals, and one end of the hot liquid folded partition plate and the cold liquid folded partition plate are respectively joined to the inner surface of the front wall of the box body, and the other end is respectively joined to the inner surface of the left side wall or the right side wall of the box body, and ,before Note The first parallel pipe insertion hole and the second parallel pipe insertion hole Parallel pipe insertion hole and and the box lid is located between the hot liquid folded partition plate and the cold liquid folded partition plate, and its bottom end is joined to the inner surface of the bottom wall of the box body, thereby positioning the air-blocking space between the hot liquid folded partition plate and the cold liquid folded partition plate, and the box lid covers the opening of the box body to seal the air-blocking space, the hot liquid inlet chamber and the cold liquid outlet chamber, and the box lid is in close contact with the upper ends of the hot liquid folded partition plate and the cold liquid folded partition plate.

[0006] A secondary object of the present invention is to provide a heat dissipation radiator tube. two The present invention provides a liquid-cooled heat dissipation device in which the heat dissipation fins are joined to the surface of the flat tubes by planar welding through structural design of a row of flat tubes and heat dissipation fins, thereby making it possible to more firmly maintain the structure of the heat dissipation radiator tube and to more quickly conduct heat from the thermal liquid circulating inside the flat tubes to the heat dissipation fins. Effect of the Invention

[0007] According to the liquid cooling and heat dissipating device of the present invention, the following effects can be obtained. (1) By preventing the hot liquid folded partition plate and the cold liquid folded partition plate from coming into contact with each other through the air-blocking space, it is possible to prevent heat transfer from the hot liquid in the inlet chamber to the cold liquid in the outlet chamber, thereby preventing the risk of the cooled cold liquid being heated and improving the cooling efficiency of the liquid-cooled head.

[0008] (2) By making the space of the liquid inlet chamber of the liquid cooling heat dissipation device of the present invention even smaller than that of the liquid outlet chamber, the heat liquid is allowed to enter the liquid inlet chamber and then quickly flow into the heat dissipation radiator pipe to dissipate heat, thereby preventing the heat liquid from accumulating in the liquid pump box and improving the heat dissipation efficiency.

[0009] (3) Through improvements to the heat dissipation radiator pipe, the thermal conduction effect between the heat dissipation fins and the flat tube is enhanced, and at the same time, the heat dissipation fins are used to firmly hold the flat tube, thereby increasing the structural strength of the heat dissipation radiator pipe. [Brief description of the drawings]

[0010] [Figure 1] 1 is a schematic perspective view showing a state in which the liquid cooling heat dissipation device of the present invention is attached to a rack-mounted server. [Diagram 2] FIG. 2 is a schematic perspective view of an assembled liquid-cooling heat dissipation device of the present invention. [Diagram 3] 1 is a schematic exploded perspective view of a liquid-cooling heat dissipation device according to the present invention; [Figure 4] FIG. 2 is a schematic exploded perspective view of a liquid pump box of the liquid cooling heat dissipation device of the present invention. [Diagram 5] FIG. 2 is a schematic exploded perspective view of a liquid pump of the liquid cooling heat dissipation device of the present invention. [Figure 6] FIG. 2 is a schematic cross-sectional view showing a state in which hot liquid and cold liquid flow through a liquid pump box of the liquid cooling heat dissipation device of the present invention. [Figure 7] FIG. 2 is a schematic exploded perspective view of a heat dissipating radiator pipe and a fin outer cover of the liquid cooling heat dissipation device of the present invention. [Figure 8] FIG. 2 is a schematic exploded perspective view of the heat dissipation fins and flat tubes of the liquid-cooling heat dissipation device of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A liquid cooling and heat dissipating device according to an embodiment of the present invention will now be described with reference to the drawings. As shown in Figures 1 and 2, the liquid cooling and heat dissipation device of the present invention is a separated type liquid cooling and heat dissipation system applied to dissipate heat from a processor 200 installed in a server 100, and a preferred specific embodiment thereof includes a liquid cooling head 300 used for installation on the processor 200, a liquid cooling radiator 400 separated by a predetermined distance from the liquid cooling head 300 and used for heat dissipation, and two liquid infusion pipes 500 connected between the liquid cooling head 300 and the liquid cooling radiator 400.

[0012] Among them, the liquid cooling head 300 is an existing device, and after connecting the two inflow pipes 500 to the liquid cooling head 300, the cold liquid from the liquid cooling radiator 400 can flow through the inflow pipe 500 and enter the liquid cooling head 300 to cool the heat of the processor 200. The cold liquid is converted into hot liquid through heat exchange, and then flows through another inflow pipe 500 to the liquid cooling radiator 400, where the hot liquid dissipates heat and becomes cold liquid. The two inflow pipes 500 can be soft plastic pipes, hard acrylic pipes, copper pipes, etc., and are used to transport the cold liquid and the hot liquid.

[0013] As shown in FIG. 3, the liquid cooling radiator 400 of the present invention has a liquid pump box 10, a heat dissipation radiator pipe 20, and a liquid return box 30. The liquid pump box 10 includes a rectangular box body 11 made of an aluminum alloy suitable for heat dissipation, and a box lid 12. The box body 11 includes a bottom wall 111 and four peripheral side walls 112, 112. and The box body 11 is integrally molded from the left side wall 112' or the right side wall 112', and a plurality of parallel pipe insertion holes 114, 114' are arranged vertically in both rows. (The parallel pipe insertion hole 114 corresponds to the "first parallel pipe insertion hole", and the parallel pipe insertion hole 114' corresponds to the "second parallel pipe insertion hole".)The parallel pipe insertion holes 114, 114' are elongated holes extending horizontally and communicating with the inside of the box body 11, and the box lid 12 covers the opening 113 of the box body 11 to seal the opening 113. The heat dissipation radiator pipe 20 is made of an aluminum alloy and has a plurality of flat pipes 21, 21' arranged vertically in two rows and a plurality of heat dissipation fins 22 joined by welding to both upper and lower flat surfaces of the flat pipes 21, 21', with one end of the flat pipes 21, 21' inserted into the parallel pipe insertion holes 114, 114' on one side of the box body 11 and joined by welding, and the other end of the flat pipes 21, 21' inserted into the liquid return box 30 and joined by welding. The internal space of the liquid return box 30 is not blocked, and the heat liquid flows through one row of flat tubes 21 of the heat dissipation radiator pipes 20 into the liquid return box 30, then flows from the liquid return box 30 toward the other row of flat tubes 21' of the heat dissipation radiator pipes 20, and then flows back into the liquid pump box 10.

[0014] As shown in Figures 4 and 6, the inside of the box body 11 of the present invention is particularly embodied to have an air blocking space 115, one end of which is adjacent to the inner surface of the front wall 112 of the box body 11, and the other end is adjacent to the inner surface of the left side wall or the inner surface of the right side wall 112' of the box body 11 after bending, and is located at a position between the parallel pipe insertion holes 114, 114' of both rows. The lower end of the air blocking space 115 is adjacent to the inner surface of the bottom wall 111, and the opposite upper end is adjacent to the inner surface of the box lid 12. In this way, the inside of the box body 11 is divided into a hot liquid inlet chamber 116 and a cold liquid outlet chamber 117 via the air blocking space 115. Furthermore, in order to be used to quickly pass the hot liquid in the hot liquid inlet chamber 116, the space of the hot liquid inlet chamber 116 needs to be formed smaller than the space of the cold liquid outlet chamber 117. The hot liquid inlet chamber 116 is connected to one row of the parallel pipe insertion holes 114, and the cold liquid outlet chamber 117 is connected to the other row of the parallel pipe insertion holes 114', and the hot liquid inlet chamber 116 and the cold liquid outlet chamber 117 are partitioned so as not to communicate with the air blocking space 115. In addition, the front wall 112 of the box body 11 is provided with a liquid inlet pipe 40 connected to the hot liquid inlet chamber 116 and a liquid outlet pipe 50 connected to the cold liquid outlet chamber 117.

[0015] In a preferred embodiment, the air-blocking space 115 includes a hot liquid folded partition plate 118 and a cold liquid folded partition plate 119 arranged at intervals, and the hot liquid folded partition plate 118 and the cold liquid folded partition plate 119 are each an L-shaped folded partition plate made by pressing an aluminum alloy. When it is assembled inside the box body 11, the hot liquid folded partition plate 118 and the cold liquid folded partition plate 119 have one end joined by welding to the inner surface of the front wall 112 of the box body 11, and the other end joined by welding to the inner surface of the left side wall or the inner surface of the right side wall 112' of the box body 11, respectively, and are located on the inner surface of the side wall 112' between the two rows of parallel pipe insertion holes 114, 114', and the bottom ends of the hot liquid folded partition plate 118 and the cold liquid folded partition plate 119 are each joined by welding to the inner surface of the bottom wall 111 of the box body 11, so that the air blocking space 115 is formed as an L-shaped curved space located between the hot liquid folded partition plate 118 and the cold liquid folded partition plate 119. When the above-mentioned box lid 12 covers the opening 113 of the box body 11, the air-blocking space 115, the hot liquid inlet chamber 116 and the cold liquid outlet chamber 117 are sealed, so that the inner surface of the box lid 12 is brought into close contact with the upper ends of the hot liquid folded partition plate 118 and the cold liquid folded partition plate 119.

[0016] As shown in FIG. 6, in the present invention, the box body 11 is divided into a hot liquid inlet chamber 116 and a cold liquid outlet chamber 117 by the air blocking space 115, the hot liquid folded partition plate 118 and the cold liquid folded partition plate 119 of the above-mentioned liquid pump box 10. Through the structural design that requires the space of the hot liquid inlet chamber 116 to be smaller than the space of the cold liquid outlet chamber 117, after the hot liquid flows into the hot liquid inlet chamber 116 via the inlet pipe 40, it needs to quickly flow into the row of flat tubes 21 of the heat dissipation radiator pipe 20 due to lack of space. Therefore, by quickly flowing the hot liquid into the heat dissipation radiator pipe 20 to dissipate heat, the function and effect of preventing the hot liquid from accumulating heat in the liquid pump box 10 is realized. Furthermore, through the design of the air blocking space 115, the thermal conductivity coefficient of air is only 2-25h (W / m2.K), while the thermal conductivity coefficient of aluminum alloy is approximately 130-150h (W / m2.K), so that the heat in the hot liquid inlet chamber 116 can be blocked from being conducted to the cold liquid in the cold liquid outlet chamber 117, preventing the cold liquid from being heated and heated before flowing out.

[0017] 3 and 5, the liquid pump box 10 of the present invention may be provided with a liquid pump 60, and the liquid pump 60 is installed inside the box body 11 or inside the box lid 12 of the liquid pump box 10. In one specific embodiment, a liquid pump base 121 protrudes from the inner surface of the box lid 12, and a liquid pump mounting chamber 122 recessed into the liquid pump base 121 is formed on the outer surface of the box lid 12. A liquid inlet hole 123 communicating with the cooling liquid outlet chamber 117 is provided on the end surface of the liquid pump mounting chamber 122, and a liquid outlet hole 124 communicating with the liquid outlet pipe 50 is provided on the side surface of the liquid pump mounting chamber 122. The liquid pump 60 includes a liquid pump cover 61, a motor stator 62, an impeller rotor 63, and a seal ring 64. The liquid pump cover 61 is fitted into the fitting recess 125 on the outer surface of the box cover 12. The outer surface of the liquid pump cover 61 has an annular recess 611 recessed into the inner surface, and the inner surface of the liquid pump cover 61 has a recess 612 recessed into the outer surface, and the recess 612 and the annular recess 611 are formed coaxially. The motor stator 62 is installed in the outer annular recess 611 and seals and closes the annular recess 611, and the impeller rotor 63 is installed in the inner recess 612, so that the motor stator 62 can drive the impeller rotor 63 to rotate through the liquid pump cover 61 into the liquid pump mounting chamber 122 (see FIG. 6), and the liquid is urged to flow in the sealed circulation system. The seal ring 64 is installed in the seal ring mounting portion 126 at the opening of the liquid pump mounting chamber 122, so that the seal ring 64 is secured in place between the seal ring mounting portion 126 and the inner surface of the liquid pump lid 61, thereby preventing sealing leakage.

[0018] Next, as shown in Figures 7 and 8, the flat tubes 21, 21' in both rows of the heat dissipation radiator pipe 20 of the present invention are arranged at intervals so as to be horizontal and vertical, the width of the heat dissipation fins 22 is equal to the total width of the flat tubes 21, 21' in both rows, and the heat dissipation fins 22 are joined by welding so as to straddle both the upper and lower planes of the flat tubes 21, 21' in both rows. The heat dissipation fins 22 are integrally formed with a vertical plate 221 and both horizontal plates 222 at both upper and lower ends thereof, and the vertical plate 221, both horizontal plates 222, and the flat tubes 21, 21' in both rows are mutually arranged along the vertical direction, and the vertical plate 221 is arranged so as to be parallel to one side wall 112' of the box body 11. The heat dissipation fins 22 are closely packed together, and the horizontal plate 222 is abutted against the vertical plate 221 of the adjacent heat dissipation fin 22, and the air inlet end 23 of the heat dissipation radiator pipe 20 is located near the front wall 112 of the box body 11, and the air outlet end 24 of the heat dissipation radiator pipe 20 is located near the rear wall of the box body 11. Among them, as shown in Fig. 8, the flat tubes 21, 21' have a heat conduction sheet 211 connecting the upper and lower tube walls inside, which increases the contact area between the heat liquid and the inside of the flat tubes 21, 21' and improves the heat dissipation efficiency.

[0019] Next, as shown in Figures 1, 3 and 7, the present invention further includes two fin outer covers 70, and each fin outer cover 70 is provided in a range having an area equivalent to the total area of ​​the horizontal plates 222 of the heat dissipation fins 22 arranged in parallel with each other, and is joined by welding to the horizontal plates 222 of the heat dissipation fins 22 on both the upper and lower sides of the heat dissipation radiator pipe 20. One end of each fin outer cover 70 may be used to mount at least one fan 80 (Figures 2 and 3 show an example of both fans 80), and the fan 80 is screwed to a number of locking parts 71 at one end of each fin outer cover 70 via screws, so that the fan 80 plays a role of sending out an airflow toward the air inlet end 23 located near the front wall of the box body 11. As described above, the present invention is not limited to the above-described embodiment, and can be embodied in various forms without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0020] 100:Server 200: Processor 300: Liquid cooling head 400: Liquid cooling radiator 500: Infusion tube 10: Liquid pump box 11: Box body 111: Bottom wall 112,112´: Side wall 113:Aperture 114, 114´: Parallel pipe insertion hole 115: Air-tight space 116: Heat liquid input chamber 117:Cold liquid discharge chamber 118: Heat-liquid folding partition plate 119: Coolant folded partition plate 12: Box lid 121: Liquid pump base 122: Liquid pump mounting chamber 123: Liquid inlet hole 124: Liquid draining hole 125:Mating recess 126: Seal ring mounting part 20: Radiator tube 21,21´: flat tube 211: Thermally conductive sheet 22: Heat dissipation fin 221: Vertical plate 222: Horizontal plate 23: Wind inflow end 24: Wind outlet end 30: Liquid return box 40:Liquid inlet pipe 50: Outflow tube 60: Liquid pump 61: Liquid pump cover 611: Circular recess 612: Hole 62: Motor stator 63: Impeller rotor 64: Seal ring 70: Fin outer cover 71: Locking part 80: Fan

Claims

1. A liquid cooling and heat dissipation device comprising: a liquid cooling head used for installation on a processor; a liquid cooling radiator used for heat dissipation separate from the liquid cooling head; and two liquid infusion pipes connected between the liquid cooling head and the liquid cooling radiator, The liquid cooling radiator has a box body made of metal, a liquid pump box including a box lid, a heat dissipation radiator pipe, and a liquid return box, the box body being integrally formed with a bottom wall and four peripheral side walls and having an opening on the side opposite to the bottom wall, a plurality of first parallel pipe insertion holes and a plurality of second parallel pipe insertion holes arranged in parallel on the left side wall or the right side wall of the box body, the ... second parallel pipe insertion holes and a plurality of second parallel pipe insertion holes arranged in parallel on the left side wall or the right side wall of the box body, the plurality of first parallel pipe insertion holes and a plurality of second parallel pipe insertion holes arranged in parallel on the left side wall or the right side wall of the box body, the plurality of second parallel pipe insertion holes and a plurality of second parallel pipe insertion holes arranged in parallel on the left side wall or the right side wall of the box body, the plurality of first parallel pipe insertion holes and a plurality of second parallel pipe insertion holes arranged in parallel on the left side wall or the right side wall of the box body, the plurality of second parallel pipe insertion holes and a plurality of second parallel pipe insertion holes arranged in parallel on the left side wall or the right side wall of the box body, the plurality of first parallel pipe insertion holes and a plurality of second parallel pipe insertion holes arranged in parallel on an air blocking space is provided inside the box body, one end of the air blocking space is adjacent to the inner surface of the front wall of the box body, and the other end of the air blocking space is adjacent to the inner surface of the left side wall or the inner surface of the right side wall of the box body after bending, and is located at a position between the first parallel pipe insertion hole and the second parallel pipe insertion hole; the inside of the box body is partitioned into a hot liquid inlet chamber and a cold liquid outlet chamber via the air blocking space, the space of the hot liquid inlet chamber is formed smaller than the space of the cold liquid outlet chamber, the hot liquid inlet chamber is connected to the first parallel pipe insertion hole, the cold liquid outlet chamber is connected to the second parallel pipe insertion hole, the hot liquid inlet chamber and the cold liquid outlet chamber are partitioned so as not to communicate with the air blocking space, and a liquid inlet pipe connected to the hot liquid inlet chamber and a liquid outlet pipe connected to the cold liquid outlet chamber are provided on the front wall of the box body, The air blocking space includes a hot liquid folded partition plate and a cold liquid folded partition plate arranged at intervals, and the hot liquid folded partition plate and the cold liquid folded partition plate have one end joined to the inner surface of the front wall of the box body, and the other end joined to the inner surface of the left side wall or the inner surface of the right side wall of the box body, respectively, and are located between the first parallel pipe insertion hole and the second parallel pipe insertion hole, and their bottom ends are joined to the inner surface of the bottom wall of the box body, thereby positioning the air blocking space between the hot liquid folded partition plate and the cold liquid folded partition plate, A liquid cooling heat dissipation device characterized in that the box lid covers the opening of the box body to seal the air-blocking space, the hot liquid inlet chamber and the cold liquid outlet chamber, and the box lid is in close contact with the upper ends of the hot liquid folded partition plate and the cold liquid folded partition plate.

2. 2. The liquid cooling heat dissipation device according to claim 1, wherein the air blocking space is curved in an L-shape, and the hot liquid folded partition plate and the cold liquid folded partition plate are each an L-shaped folded partition plate.

3. The liquid cooling and heat dissipating device according to claim 2 , further comprising a liquid pump installed inside the box body of the liquid pump box or inside the box lid of the liquid pump box.

4. 4. The liquid cooling heat dissipation device as described in claim 3, characterized in that a liquid pump base protrudes from the inner surface of the box body or the box lid, a liquid pump mounting chamber is formed in the outer surface of the box body or the box lid, the liquid pump mounting chamber is recessed into the liquid pump base, an end face of the liquid pump mounting chamber is provided with a liquid inlet hole communicating with the cooling liquid outlet chamber, and a side face of the liquid pump mounting chamber is provided with a liquid outlet hole communicating with the liquid outlet pipe.

5. The liquid cooling heat dissipation device described in claim 1, characterized in that the two rows of flat tubes of the heat dissipation radiator tube are arranged parallel to each other and spaced apart so that the arrangement direction of the flat tubes in each row is perpendicular to the bottom wall, the width of the multiple heat dissipation fins is equal to the total width of the multiple flat tubes in the two rows, and the multiple heat dissipation fins are joined so as to straddle both the upper and lower planes of the multiple flat tubes in the two rows.

6. 6. The liquid-cooled heat dissipation device according to claim 5, characterized in that the multiple heat dissipation fins are integrally formed with a vertical plate and two horizontal plates at the upper and lower ends thereof, the vertical plate, the two horizontal plates and the two rows of the multiple flat tubes are arranged along the vertical direction, the vertical plate is arranged parallel to one side wall of the box body, the horizontal plate is joined to the outer surface of the two rows of the multiple flat tubes, the multiple heat dissipation fins are closely packed together, the horizontal plate is abutted against the vertical plate of another adjacent heat dissipation fin, the air inlet end of the heat dissipation radiator pipe is located near the front wall of the box body, and the air outlet end of the heat dissipation radiator pipe is located near the rear wall of the box body.

7. 6. The liquid-cooling heat dissipation device according to claim 5, wherein the flat tube has a heat-conducting sheet inside thereof connecting the upper and lower walls of the tube.

8. 7. The liquid-cooled heat dissipation device according to claim 6, further comprising two fin outer covers, each of which is provided in an area equivalent to the total area of ​​the horizontal plates of the heat dissipation fins arranged in parallel with each other, and which is joined to the horizontal plates of the heat dissipation fins on both the upper and lower sides of the heat dissipation radiator pipe.

9. 9. The liquid cooling heat dissipation device according to claim 8, further comprising at least one fan, the fan being screwed to a plurality of locking portions at one end of both fin outer covers via screws, and the fan blowing out air toward an air inlet end located near a front wall of the box body.

Images