TWM622696U - Liquid-cooling device - Google Patents

Abstract

The present invention provides a liquid cooling device, which includes a liquid cooling tube unit and a liquid cooling connection base, the liquid cooling tube unit has a plate-shaped tube shell and an inner shell space is formed, and the inner shell space has a plurality of first flow channels and a plurality of The second flow channel is communicated through a return flow channel. The liquid cooling connection seat has a water inlet channel and a water outlet channel. The water inlet channel and the water outlet channel are separated from each other and penetrate from one side of the liquid cooling connection seat to the other side to form a The interface is connected to an open end of the plate-shaped tube shell, and the water inlet channel and the water outlet channel are respectively connected to the plurality of first flow channels and the plurality of second flow channels, so as to simplify the overall structure, reduce the welding area and increase the strength and air tightness .

Description

Liquid cooling device

This creation relates to the field of liquid cooling and heat dissipation, especially to a liquid cooling device.

In electronic equipment (such as computers or servers), in order to ensure the reliable and stable operation of the system and prolong the service life of the equipment, the heat generated by the operation of the related devices needs to be taken away in time. Because the thermal conductivity of liquid is higher than that of air, many electronic devices use liquid cooling system to dissipate heat. The liquid-cooled plate is the core component of the liquid-cooled heat dissipation system. It absorbs the heat of electronic devices (such as central processing units and graphics processors) through the liquid-cooled plate. Therefore, the performance of the liquid-cooled plate directly affects the efficiency of the cooling system. Please refer to FIG. 1, the existing liquid cooling plate 1 includes an upper plate 11, a lower plate 12, a fin group 13, a first cover 14 and a second cover 15. The upper plate 11 and the lower plate The plates 12 are respectively combined on the upper side and the lower side of the fin group 13, and the inner sides of the upper plate 11 and the lower plate 12 and the upper and lower sides of the fin group 13 are joined together by aluminum welding. , the first and second cover members 14 and 15 are respectively covered on both sides of the upper and lower plates 11 and 12 and sealed and welded together. The first cover member 14 is provided with an inlet for a working liquid to enter and exit. 141 and an outlet 142 , the second cover member 15 has a cavity space 151 that communicates with the flow channel 131 formed between the fin groups 13 . Therefore, the existing liquid cooling plate 1 needs to be assembled by welding a plurality of parts, which is easy to cause high difficulty in assembly and manufacture, and the high production cost of each part leads to an increase in the overall cost. And in the place where the upper plate 11, the lower plate 12 and the fin group 13 are in contact with each other, aluminum welding must be used to join, which will result in a large welding area. (or false welding)), which will not only cause the leakage of the working liquid, but also affect the problem that the overall structural strength of the liquid cooling plate 1 is insufficient (ie, the overall structural strength is reduced). In addition, since the thicknesses or edges of the elements of the upper plate 11 , the lower plate 12 and the fin group 13 must have dimensional tolerances during the manufacturing process, the dimensions and/or thicknesses of the elements may be inconsistent with each other, and further extension The poor welding accuracy and the difficulty in controlling the welding accuracy lead to defects such as slag inclusions, pores, cracks, burn-through, etc. in the welding seam, thereby reducing the welding joint strength and the problems of liquid leakage inside the liquid cooling plate 1 . Therefore, how to solve the above-mentioned problems and deficiencies is the direction that the creator of this case and the relevant manufacturers engaged in this industry are eager to research and improve.

One objective of the present invention is to provide a liquid cooling device with a liquid cooling tube unit that can simplify the overall structure and reduce the welding area, so as to improve the thermal conductivity and increase the structural strength. Another object of the present invention is to provide a device that can avoid liquid leakage and ensure air tightness, and has a simple structure and simple and convenient manufacturing process, so as to effectively save costs. In order to achieve the above purpose, the present invention provides a liquid cooling device, which includes a liquid cooling tube unit, and has a plate-shaped tube shell, an inner space is formed in the plate-shaped tube shell, and the plate-shaped tube shell has a first open end and a second open end, the first and second open ends are respectively located at two ends of the plate-shaped tube shell and communicate with the inner space of the shell, the second open end is provided with a cover, and the inner space of the shell has a plurality of first flow a plurality of second flow channels and a return flow channel, the return flow channel is adjacent to the cover member of the second open end and communicates with the plurality of first flow channels and the plurality of second flow channels; a liquid cooling connection seat, There is a water inlet channel and a water outlet channel, the water inlet channel and the water outlet channel are separated from each other and penetrate from one side of the liquid cooling connection seat to the other side to form an interface, the interface is connected to the first opening of the plate shell The water inlet channel and the water outlet channel respectively communicate with the plurality of first flow channels and the plurality of second flow channels. There is a partition wall between the plurality of first flow channels and the plurality of second flow channels, and the partition wall integrally protrudes from the bottom side of the plate-shaped tube shell in the inner space of the shell to the top of the plate-shaped tube shell side. The water inlet channel and the water outlet channel are separated by a partition wall and extend to the interface, and the partition wall is connected to one of the partition walls in the first open end of the plate-shaped tube shell. The plurality of first flow channels and the plurality of second flow channels extend from the first open end to adjacent to the second open end, and the return flow channel is disposed at the second open end and the plurality of first flow channels and the plurality of second flow channels between the roads. The water outlet channel is provided with a water outlet located on one side of the liquid cooling connection seat and communicates with the water outlet channel, and the water inlet channel is provided with a water inlet located on a side surface of the liquid cooling connection seat and communicates with the water inlet channel. A radiator unit is arranged above the above-mentioned liquid-cooled tube unit, and the radiator unit has a bottom surface of the radiator connected to or contacting the top side of the plate-shaped tube shell, and the bottom surface of the radiator is provided with a stepped portion placed and combined with the liquid-cooled connection the top of the seat. The number of flow channels of the plurality of first flow channels is greater than the number of flow channels of the plurality of second flow channels.

The above-mentioned purpose of the present invention and its structural and functional characteristics will be described with reference to the preferred embodiments of the accompanying drawings. The present invention is a liquid cooling device 2, which is applied and installed in a liquid cooling system (not shown in the figure), the liquid cooling system includes a water pump and a water block, and the water block is mainly used for connecting with an electronic device ( For example, a heating element in a server or computer is contacted to absorb heat, and a water inlet end of the water block and a water outlet end of the water pump are connected through a water pipe, and the liquid cooling device 2 is connected through a plurality of water pipes respectively. A water inlet end of the water pump and a water outlet end of the water cooling head form a liquid cooling circuit. Therefore, after a working liquid 3 (such as pure water) in the water-cooled head exchanges heat with the heat absorbed on the heating element, the working liquid 3 with heat is pushed to flow to the liquid cooling device 2 through the pump. Heat exchange to dissipate heat, so that the cooled (cooled) working liquid 3 flows back into the water-cooled head, and the water is continuously circulated to dissipate heat. In addition, the inventive liquid cooling device 2 can also be installed on a single liquid cooling system in which the water pump and the water cooling head are integrated. Please refer to Figures 2, 3, and 4. The liquid cooling device 2 of the present invention includes a liquid cooling tube unit 21 and a liquid cooling connecting seat 22. The liquid cooling tube unit 21 is an integrally formed component (for example, an aluminum extrusion integral molding). The liquid cooling tube unit 21 has a plate-shaped tube shell 211, the plate-shaped tube shell 211 has a first open end 214 and a second open end 215, the first and second open ends 214, 215 are respectively located at both ends of the plate-shaped tube shell 211, the first open end 214 is connected to one side of the liquid cooling connection seat 22, and the second open end 215 is provided with a cover 24 to be welded or Adhesive sealing. An inner shell space 212 is formed in the plate-shaped tube shell 211 . The inner shell space 212 is located between the first and second open ends 214 and 215 and communicates with each other. The inner shell space 212 has a plurality of first flow channels 2122 , a plurality of A second flow channel 2123 and a return flow channel 2124, the plurality of first flow channels 2122 and the plurality of second flow channels 2123 extend from the first open end 214 to adjacent to the second open end 215, and are parallel to the plate tube shell In the longitudinal direction (length direction) of 211, in this embodiment, the number of flow channels of the plurality of first flow channels 2122 is more than the number of flow channels of the plurality of second flow channels 2123, so as to ensure that the liquid cooling pipe unit 21 flows into the working liquid 3 has a larger inflow range, and provides more heat dissipation area for heat exchange with the working liquid 3. Therefore, through this arrangement, when the working liquid 3 with heat enters the liquid cooling tube unit 21 and passes through most of the first flow channels 2122, it can quickly exchange heat with more partition walls 216 and the top and bottom of the plate-shaped tube shell 211 Dissipate heat, so that the cooled working liquid will return to the few second flow passages 2123 through the return flow passage 2124, and the temperature will continue to be lowered by heat exchange again, so as to ensure that the temperature of the cooled working liquid 3 flowing out of the liquid cooling pipe unit 21 is lowered. to the desired temperature. There is a partition wall 216 between the plurality of first flow channels 2122 and between the plurality of second flow channels 2123. The partition wall 216 integrally protrudes from the bottom side of the plate-shaped tube shell 211 in the inner space 212 to the The top side of the plate tube shell 211 is used to separate each first flow channel 2122 and each second flow channel 2123 to prevent the working liquid 3 in the first and second flow channels 2122 and 2123 from flowing to the adjacent adjacent ones. inside the flow channel. The return flow channel 2124 is disposed between the second open end 215 , the plurality of first flow channels 2122 and the plurality of second flow channels 2123 , and is adjacent to the cover member 24 of the second open end 215 , that is, the There is an inner space between the plurality of partition walls 216 and the second open end 215 of the inner space 212 without the partition wall 216 , and the inner space is the position of the return flow channel 2124 . And in this embodiment, the setting direction of the return flow channels 2124 is parallel to the short direction (width direction) of the plate-shaped tube shell 211 , and the return flow channels 2124 serve as the plurality of first flow channels 2122 and the plurality of second flow channels 2123 There are path flow channels connected between them, so that the plurality of first flow channels 2122 communicate with the plurality of second flow channels 2123 through the return flow channel 2124 . Continuing to refer to Figures 2 and 4, the liquid cooling connector 22 has a water inlet channel 221 and a water outlet channel 222. The water inlet channel 221 and the water outlet channel 222 are separated from each other from one side (such as the front side) of the liquid cooling connector 22 ) runs through to the other side (such as the left side) to form an interface 223. In this embodiment, the water inlet channel 221 and the water outlet channel 222 are separated by a partition wall 224 and extend to the adjacent interface 223. The interface 223 is The first open end 214 of the plate-shaped tube shell 211 is butted, and the partition wall 224 is connected to one of the partition walls 216 in the first open end 214 of the plate-shaped tube shell 211, so that the water inlet channel 221 is connected to the The water outlet channel 222 is respectively connected to the plurality of first flow channels 2122 and the plurality of second flow channels 2123, so the partition wall 224 is connected and sealed with the corresponding partition wall 216 by welding, so as to ensure that the working fluid 3 is as shown in FIG. 4 . The arrows indicated by the arrows can be smoothly guided from the inlet channel 221 through the plurality of first flow channels 2122 , and then return to the plurality of second flow channels 2123 through the return flow channels 2124 to flow out of the water outlet channels 222 . The water outlet 222 is provided with a water outlet 2221. The water outlet 2221 is located on one side (such as the front side) of the liquid cooling connection base 22 and communicates with the water outlet 222. The water outlet 2221 passes through a water pipe to cool the work. The liquid 3 flows out into the water pump, and the water inlet channel 221 is provided with a water inlet 2211. The water inlet 2211 is located on one side (such as the front side) of the liquid cooling connection seat 22, and communicates with the water inlet channel 221. The water port 2211 introduces the working liquid 3 with heat into the liquid cooling device 2 through another water pipe for heat exchange and heat dissipation. In addition, in this embodiment, a radiator unit 25 is disposed above the liquid cooling tube unit 21 , and the radiator unit 25 has a radiator bottom surface 251 , and the radiator bottom surface 251 is connected to or contacts the top of the plate-shaped tube shell 211 . and the bottom surface 251 of the radiator is provided with a stepped portion 252 which is placed and combined with the top surface of the liquid cooling connection seat 22 to absorb the heat on the plate tube shell 211 through the bottom surface of the radiator unit 25 to rapidly dissipate heat outward, and the The stepped portion 252 assists in adsorbing the heat on the liquid cooling connection base 22 (such as the heat brought by the hot working liquid 3 in the water inlet channel 221 ) and dissipating heat to the outside. Therefore, when the working liquid 3 with heat flows into the shell space 212 of the liquid cooling tube unit 21 through the water inlet 2211 of the liquid cooling device 2 through the water inlet channel 221 , the working liquid 3 will be as indicated by the arrow in FIG. 4 . It is shown that it flows from the first open end 214 to the second open end 215 along the plurality of first flow channels 2122, and flows to the return flow channel 2124, and then flows back to the second plurality of second flow channels through the return flow channel 2124. The flow channel 2123 flows from the second open end 215 to the first open end 214 along the plurality of second flow channels 2123 , and then flows out of the liquid cooling connection seat 22 through the water outlet channel 222 and the water outlet 2221 . The working liquid 3 will exchange heat with the top and bottom of the plate tube shell 211 and the plurality of partition walls 216 during the flow of the plurality of first and second flow channels 2122, 2123 and the return flow channel 2124. The upper radiator unit 25 will exchange the heat absorbed on the plate-shaped tube shell 211 with the outside air for heat dissipation. Therefore, through the present invention, the liquid cooling device 2 is formed by using fewer parts, so that the structure is simple and the manufacturing process is simple and convenient, and the liquid cooling tube unit 21 is integrally formed with the plate-shaped tube shell 211 by, for example, aluminum extrusion, and inside the shell The structure of the plurality of first and second flow channels 2122, 2123 and the return flow channel 2124 in the space 212 can effectively reduce the welding area and achieve the effect of avoiding liquid leakage and ensuring air tightness, thereby improving the structural strength and thermal conductivity. Moreover, the overall structure of the liquid cooling device 2 is effectively simplified. The creation has been described in detail above, but the above is only a preferred embodiment of the creation, and should not limit the scope of implementation of the creation. That is, all equivalent changes and modifications made in accordance with the scope of the application of this creation shall still fall within the scope of the patent of this creation.

2: Liquid cooling device 21: Liquid cooling tube unit 211: plate shell 212: Space inside the shell 2122: First runner 2123: Second runner 2124: Return runner 214: First open end 215: Second open end 216: Partition 22: Liquid cooling connector 221: Water entry channel 2211: Inlet 222: outlet channel 2221: Water outlet 223: interface 224: Dividing Wall 24: Covers 25: Radiator unit 251: The bottom of the radiator 252: Steps 3: Working liquid

FIG. 1 is a schematic exploded perspective view of the prior art. Figure 2 is a three-dimensional exploded schematic diagram of the creation. Figure 3 is a schematic diagram of the three-dimensional composition of the creation. FIG. 4 is a schematic top view of the section of FIG. 3 .

2: Liquid cooling device

21: Liquid cooling tube unit

211: plate shell

212: Space inside the shell

214: First open end

215: Second open end

216: Partition

22: Liquid cooling connector

221: Water entry channel

2211: Inlet

222: outlet channel

2221: Water outlet

223: interface

224: Dividing Wall

24: Covers

25: Radiator unit

251: The bottom of the radiator

252: Steps

Claims (7)

A liquid cooling device, comprising: A liquid-cooling tube unit has a plate-shaped tube shell, and an inner space is formed in the plate-shaped tube shell. The plate-shaped tube shell has a first open end and a second open end. The first and second open ends are located at both ends of the plate-shaped tube shell and communicate with the inner space of the shell, the second open end is provided with a cover, the inner space of the shell has a plurality of first flow channels, a plurality of second flow channels and a return flow channel, the The return flow channel is adjacent to the cover member of the second open end and communicates with the plurality of first flow channels and the plurality of second flow channels; A liquid-cooling connection seat has a water inlet channel and a water outlet channel. The water inlet channel and the water outlet channel are separated from each other and penetrate from one side of the liquid cooling connection seat to the other side to form an interface, which is connected to the plate tube. At the first open end of the shell, the water inlet channel and the water outlet channel are respectively connected to the plurality of first flow channels and the plurality of second flow channels. The liquid cooling device as described in claim 1, wherein there is a partition wall between the plurality of first flow channels and between the plurality of second flow channels, and the partition wall is separated from the plate-shaped tube in the inner space of the shell The bottom side of the shell protrudes integrally to the top side of the plate-like tube shell. The liquid cooling device as described in claim 2, wherein the water inlet channel and the water outlet channel are separated by a partition wall and extend to the interface, the partition wall and the first open end of the plate-shaped tube shell Connected to one of the partition walls. The liquid cooling device of claim 1, wherein the plurality of first flow channels and the plurality of second flow channels extend from the first open end to adjacent to the second open end, and the return flow channel is disposed at the first open end. between the two open ends and the plurality of first flow channels and the plurality of second flow channels. The liquid cooling device described in claim 1, wherein the water outlet channel is provided with a water outlet located on one side of the liquid cooling connection base and communicated with the water outlet channel, and the water inlet channel is provided with a water inlet located on the liquid cooling One side of the connection seat is connected to the water inlet channel. The liquid cooling device as described in claim 1, wherein a radiator unit is disposed above the liquid cooling tube unit, the radiator unit has a bottom surface of the radiator connected to or contacting the top side of the plate-shaped tube shell, and The bottom surface of the radiator is provided with a stepped portion which is placed and combined with the top surface of the liquid cooling connection base. The liquid cooling device according to claim 1, wherein the number of flow channels of the plurality of first flow channels is greater than the number of flow channels of the plurality of second flow channels.

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