TW202137865A - Liquid cooling module and its liquid cooling head - Google Patents

Abstract

A liquid cooling head includes a casing, an inlet channel, a heat-dissipation structure, a liquid collection structure, a drainage channel and a pump set. The casing includes an upper chamber and a lower chamber. The upper chamber is communication with the lower chamber through an connection opening. The inlet channel is located on one side of the casing and connected to the upper chamber for feeding working fluid into the upper chamber. The heat-dissipation structure is located in the lower chamber to remove the heat of the working fluid. The liquid collecting structure is located in the lower chamber to collect the working fluid passing through the heat-dissipation structure. The drainage channel is located on one side of the casing and connected to the lower chamber. The pump set is used to discharge the working fluid outwardly from the lower chamber via the drainage channel.

Description

Liquid cooling module and its liquid cooling head

The invention relates to a heat dissipation module, in particular to a liquid cooling module and its liquid cooling head.

With the advancement and popularization of technology, various electronic devices or computer equipment have long become indispensable roles in people's daily lives, such as notebook computers, desktop computers, and network servers. Generally speaking, the internal electronic components of these products will increase the temperature during operation, and high temperature can easily cause damage to the components. Therefore, the heat dissipation mechanism is a very important and necessary design for these electronic products. In addition to general heat dissipation design using fans to provide airflow for convection cooling, or attaching heat dissipation units of special materials to conduct conduction cooling, water-cooling mechanisms are also an effective and common heat dissipation design.

To put it simply, the principle of water-cooled heat dissipation is generally to use liquid (such as water or coolant) as the heat dissipation medium, and a continuously operating water pump or pump is used to form a continuous circulation in the applied system. Liquid flows in closed pipelines, and these pipelines are distributed on the surface of various electronic components (such as central processing units) in the system. When the relatively low temperature liquid flows through these relatively high temperature electronic components, it will absorb its heat to slow down its temperature rise. Then, as the pipeline exchanges heat with the outside or other heat dissipation mechanisms to release heat to reduce the temperature of the liquid, the liquid is returned to the system for circulation and heat dissipation.

However, due to the limited internal space of general computer equipment, host or server equipment, it can only be used in the space of the environment where it is installed, and water-cooled heat dissipation must have the design of the inflow and outflow of pipelines, making the installation of pipelines It will be relatively complicated. Therefore, how to design a water-cooled heat dissipation structure with good heat dissipation efficiency, while taking into account the overall pipeline configuration, reducing the occupied space to facilitate installation in a small environment, and effectively completing the connection with other pipelines and avoiding water leakage. The main purpose of the development of this case.

One purpose of the present invention is to provide a liquid cooling module and its liquid cooling head to solve the above-mentioned difficulties mentioned in the prior art.

An embodiment of the present invention provides a liquid cold head. The liquid cooling head includes a casing, a first water inlet channel, a heat transfer structure, a water collection structure, a drainage channel and a pump group. The casing includes a shell, a baffle and a base. The shell, the baffle and the base are sequentially combined into one body. An upper chamber is formed between the shell and the baffle. A lower chamber is formed between the baffle and the base. The communication opening is located on the baffle plate and connects the upper chamber and the lower chamber stacked on each other. The first water inlet channel is located on one side of the housing and is connected to the upper chamber for feeding a source working fluid into the upper chamber. The heat transfer structure is located in the lower chamber and is sandwiched between the baffle and the base to take away the heat energy of the working fluid. The water collecting structure is located in the lower chamber for collecting the working fluid passing through the heat transfer structure. The drainage channel is located on one side of the housing and connects to the lower chamber. The pump group is used to discharge the working fluid in the lower chamber to the drainage channel.

According to one or more embodiments of the present invention, the above-mentioned liquid-cooled head further includes a second water inlet channel. The second water inlet channel is located on the other side of the housing and is connected to the upper chamber for feeding working fluid from another source into the upper chamber. The first water inlet channel and the second water inlet channel are respectively located on the housing opposite to each other.

According to one or more embodiments of the present invention, in the above-mentioned liquid cooling head, the first water inlet channel and the drain channel are located on the same side of the housing, or the first water inlet channel and the drain channel are located on the housing opposite to each other.

According to one or more embodiments of the present invention, in the above-mentioned liquid-cooled head, the baffle further has at least one communication gap. The communication gap is located between the communication opening and the first water inlet channel, and connects the upper chamber and the lower chamber.

According to one or more embodiments of the present invention, in the above-mentioned liquid-cooled head, the heat transfer structure includes a plurality of fins arranged side by side. The base has a first diversion structure and a second diversion structure. The fins, the water collecting structure, the first diversion structure and the second diversion structure are all formed on the inner surface of a base facing the casing. The first diversion structure and the second diversion structure are located on the same side of the heat transfer structure, and are used to guide the working fluid passing through the fins to the water collection structure respectively. The water collection structure is located between the first diversion structure and the second diversion structure.

According to one or more embodiments of the present invention, in the above-mentioned liquid cold head, the water collecting structure includes a disc body and three flow channels. The disc body is located on the inner surface of the base of the base. The flow channels are mutually formed on a disc surface of the disc body facing the casing, and are used for receiving the working fluid sent from the fins, the first diversion structure and the second diversion structure respectively.

According to one or more embodiments of the present invention, in the above-mentioned liquid cooling head, the pump unit includes a driving component and a fan blade component. The drive assembly can rotate the fan blade assembly without contact. The fan blade assembly includes a fan blade and a shaft rod passing through the fan blade, the water collection structure includes a shaft rod fixing member, and the casing includes a baffle. The shaft rod holder is located at the intersection of these runners. The baffle is sandwiched between the disc body and the fan blade, and covers these flow channels. The blocking piece has an opening, and the shaft rod passes through the blocking piece and is arranged on the shaft rod fixing member. The two opposite surfaces of the shell respectively have an upper groove and a lower groove. The lower groove is vertically aligned with the upper groove, and is airtightly isolated from the upper groove. The upper groove accommodates the drive assembly, and the lower groove accommodates the fan blade assembly. The fan blade assembly is pivotally located in the shaft fixing part and the lower groove.

According to one or more embodiments of the present invention, the above-mentioned liquid cooling head further includes two external channels and a pipeline. These external channels are located on the two opposite sides of the shell. The pipeline is located in the upper chamber, connects these external channels, and is airtightly isolated from the chamber.

According to one or more embodiments of the present invention, in the above-mentioned liquid cooling head, the baffle has a groove, and the casing further includes a pipe cover covering the groove to form the pipeline.

According to one or more embodiments of the present invention, in the above-mentioned liquid cooling head, the housing includes a positioning groove. The positioning groove is located in the upper chamber and is recessed on the inner surface of the shell facing the baffle. The casing further includes a positioning rib, which is integrally formed to connect to the outer surface of the pipe cover and extends into and abuts against the positioning groove for positioning the pipe cover.

An embodiment of the present invention provides a liquid cooling module. The liquid cooling module includes an above-mentioned liquid cooling head, a tower-type liquid cooling exhaust device, a front pipeline and a rear pipeline. The tower type liquid cooling device includes an upper box body, a lower box body and a heat dissipation stack structure. The upper box body includes a water inlet, a water outlet, and a plurality of first chambers isolated from each other. One of the first chambers is connected to the water inlet, and the other first chamber is connected to the water outlet. The lower box is vertically stacked on the top of the liquid cold head, and contains a plurality of second chambers isolated from each other. The heat dissipation laminated structure includes a plurality of heat dissipation fin groups and a plurality of fin tube layers. The heat dissipation fin groups and the fin tubes are located between the upper box body and the lower box body. The fin tubes are parallel to each other and located between any two adjacent heat dissipation fin groups. These fin tubes are respectively connected to the first chamber and the second chamber, so that an S-shaped path is formed in the upper box body, the heat dissipation stack structure and the lower box body. The front pipeline connects the water inlet and the drainage channel of the liquid cooling head. The rear pipeline connects the water outlet and the first water inlet channel of the liquid cooling head.

According to one or more embodiments of the present invention, in the above-mentioned liquid cooling module, the tower-type liquid cooling exhaust device further includes an external fan. The external fan is located on one side of the heat dissipation stack structure and is fixed between the upper box body and the lower box body for outputting airflow to the heat dissipation fin group.

According to one or more embodiments of the present invention, in the above-mentioned liquid cooling module, the external fan and the first water inlet channel of the liquid cooling head are both located on the same side of the liquid cooling module.

According to one or more embodiments of the present invention, in the above-mentioned liquid cooling module, the housing has a sloping plate that expands obliquely outwards on a side surface corresponding to the first water inlet channel.

In this way, through the structures described in the above embodiments, the present invention can not only achieve good heat dissipation efficiency, but is also beneficial to be applied to related computer equipment, host or server equipment.

The above description is only used to illustrate the problem to be solved by the present invention, the technical means to solve the problem, and the effects produced by it, etc. The specific details of the present invention will be described in detail in the following embodiments and related drawings.

Hereinafter, a plurality of embodiments of the present invention will be disclosed in the form of drawings. For clear description, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is to say, in the embodiment of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventionally used structures and elements are shown in the drawings in a simple and schematic manner.

Now an embodiment is used to describe the implementation of the liquid-cooled head 2 proposed by the present invention. Please refer to Figures 1A to 4B. Figures 1A and 2B are three-dimensional schematic diagrams of the liquid cooling head 2; Figure 1C is an exploded schematic view of the components of the liquid cooling head 2; Figure 2A is an assembly schematic diagram of a housing 20 and a baffle 35; Figures 2B to 2D are schematic diagrams of the changes of different baffles; Figures 3A to 3D are schematic diagrams of the flow direction of the working fluid in the liquid cold head 2; Figures 4A and 4B are a base 30 and a set A schematic diagram of the arrangement of the water structure 31.

As shown in Figures 1A to 1C, the liquid cooling head 2 of the present invention mainly includes a casing 10, a pump unit 26, a first water inlet channel 21, a second water inlet channel 22, and a drain Channel 23. The pump unit 26 includes a driving assembly 260 and a fan assembly 261. The casing 10 includes an upper cover 200, a casing 20, a baffle 35 and a base 30. The upper cover 200, the housing 20, the baffle 35, and the base 30 are sequentially combined with each other into one body. An upper chamber (such as a water storage chamber 201) is formed between the housing 10 and the baffle 35. A lower cavity 301 is formed between the baffle 35 and the base 30. The upper chamber (such as the water storage chamber 201) and the lower chamber 301 are stacked on each other. The two opposite surfaces of the housing 20 respectively have an upper groove 28 and a lower groove 29. The upper groove 28 is used for accommodating the driving assembly 260. The lower groove 29 is vertically aligned with the upper groove 28, and is airtightly isolated from the upper groove 28. The lower groove 29 is used for receiving the fan blade assembly 261. The driving assembly 260 can rotate the fan blade assembly 261 in a non-contact manner. For example, the driving assembly 260 can rotate the fan blade assembly 261 in a non-contact magnetic induction manner.

The housing 20 is used as the main structural component of the liquid cooling head 2. One end is provided with the first water inlet channel 21 for feeding a source of working fluid, and the other end is provided with the second water inlet channel 22 and The drainage channel 23, in other words, the second water inlet channel 22 and the drainage channel 23 are located on the same side of the housing 20, and are located on the housing 20 opposite to the first water inlet channel 21, and the second water inlet channel 22 is used for To send the working fluid from another source. The housing 20 also has an electromechanical chamber for accommodating the driving assembly 260. The liquid-cooling head 2 also includes a single-hole locking ring 24 and a double-hole locking ring 25 with a specific thickness. The single-hole locking ring 24 is used to lock the first water inlet channel 21, and the double The hole locking ring 25 is used to lock the second water inlet channel 22 and the drain channel 23 to prevent water leakage at the junction of these channels.

The casing 20 is disposed between the upper cover 200 and the base 30, and the baffle 35 is disposed between the casing 20 and the base 30. The water collecting structure 31, a first flow guiding structure 32, a second flow guiding structure 33, and a heat transfer structure 34 are provided on the inner surface 30A of the base 30 facing the housing 20. The heat transfer structure 34 It includes a plurality of fins 341 arranged side by side. The water collection structure 31 is located between the first flow guide structure 32 and the second flow guide structure 33, and the water collection structure 31, the first flow guide structure 32 and the second flow guide structure 33 are connected to the heat transfer The structure 34 may be adjacent to the same side of the heat transfer structure 34. Both the first air guiding structure 32 and the second air guiding structure 33 are formed on the inner surface 30A of the base 30. In addition, the casing 20 of the casing 10 further includes a baffle 27. The baffle 27 is located between the fan blade assembly 261 and the water collecting structure 31 and can assist the water collecting structure 31 to collect water to prevent the working fluid from flowing back. The blocking piece 27 has an opening 270. The blocking piece 27 is, for example, a copper piece, but the present invention is not limited to this.

As shown in Figures 1C and 2A, when the baffle 35 is assembled to the housing 20, the upper chamber is, for example, a water storage cavity 201 formed between the housing 20 and the baffle 35 for Provide temporary storage of working fluid. The baffle 35 is disposed above the heat transfer structure 34 at the same time, and separates the upper water storage cavity 201 and the lower chamber 301 accommodated by the heat transfer structure 34 (see FIGS. 3A to 3C). The baffle 35 also has a communication opening 350 which connects the upper water storage chamber 201 and the lower chamber 301 of the lower layer. In this way, when the working fluid flows into the water storage chamber 201 from the first water inlet channel 21 or the second water inlet channel 22, the working fluid can then flow down into the lower chamber 301 through the communication opening 350.

However, the concept of the present invention is not limited to this, that is, the related communication structure of the baffle 35 can also be designed in other ways. For example, in Figures 2B to 2D, three different baffles B35, C35, and D35 are shown, wherein the baffle B35 has two communicating gaps B351 and B352, the baffle C35 has a communicating gap C351, and The baffle D35 has a communicating gap D351. The communication gaps B351, B352, C351, and D351 are respectively located between the communication opening 350 and the second water inlet passage 25.

Therefore, the communication gaps B351, B352, C351, and D351 can also provide working fluid to pass through and flow downward. It is understandable that, depending on the flow speed of the working fluid or the delivered water pressure, the working fluid may first pass through the above-mentioned communication gap or pass through the communication opening 350 that is relatively far away. In other words, if the above-mentioned communication gap is designed, the original communication opening 350 can produce a shunt effect, so that the relatively low temperature working fluid can be evenly guided to the heat transfer structure 34 or the lower cavity Various parts of the chamber 301 can evenly exchange heat with the heat transfer structure 34, so that the liquid cold head 2 presents a good uniform temperature. Of course, the position, shape, size, or number of the communication gaps mentioned above are not limited to those shown in Figures 2B to 2D. The shape can be square, triangle, circle, etc., and the edges of various shapes are perforated. The length can be wavy or jagged, etc.

Figure 3A is a vertical cross-sectional view of the extension direction of the nozzle of the second water inlet channel 22; Figure 3B is a vertical cross-sectional view of the extension direction of the nozzle of the first water inlet channel 21; The extension direction of the nozzle of the drainage channel 23 is shown as a vertical cross-section; the 3D figure shows a horizontal cross-section showing the diameter directions of the first water inlet channel 21, the second water inlet channel 22 and the drainage channel 23. The flow of the working fluid is shown in the direction of the arrows in Figures 3A to 3D. The lower chamber 301 is jointly defined by the housing 20, the baffle 35, and the base 30. In addition to the heat transfer structure 34, the water collection structure 31, the first flow guiding structure 32, and the second The flow guiding structure 33 is also contained in the lower chamber 301.

As shown in FIGS. 3A to 3D, the working fluid entering the liquid-cooled head 2 can choose to flow in from the first water inlet channel 21 or from the second water inlet channel 22. The working fluid flowing in from the second water inlet channel 22 first flows into the water storage chamber 201, and then turns to pass through the communication opening 350 and flows downward into the lower chamber 301. Part of the working fluid flowing in from the first water inlet channel 21 may first flow into the water storage chamber 201, or some may be directly turned through the communication opening 350 and flow down into the lower chamber 301. Then, the working fluid can pass through the inside of the heat transfer structure 34 to exchange heat with the heat transfer structure 34. Finally, the working fluid enters below the fan blade assembly 261 and is sucked upward by the fan blade assembly 261, and then flows out of the liquid cooling head 2 to the adjacent drain channel 23.

FIG. 4A illustrates a situation where the fan blade assembly 261 and the baffle 27 are disposed on the water collecting structure 31. As mentioned above, the water collection structure 31 is located between the first flow guiding structure 32 and the second flow guiding structure 33. Secondly, Figure 4B also shows that the water collection structure 31 has a disc body 310, three flow passages 31a, 31b, 31c, and a shaft rod holder 31d, wherein the flow passages 31a, 31b, 31c are mutually formed in the The disc body 310 faces a disc surface 310A of the casing 20. More specifically, the flow channels 31a, 31b, and 31c are equiangularly formed on the disc surface 310A of the disc body 310 facing the casing 20. The flow channel 31 a is directly connected to or adjacent to the heat transfer structure 34, the flow channel 31 b is adjacent to the first flow guiding structure 32, and the flow channel 31 c is adjacent to the second flow guiding structure 33. However, the present invention does not limit the flow channels 31a, 31b, and 31c to be equiangularly formed on the disc body 310. The shaft rod holder 31d is located at the intersection of the flow channels 31a, 31b, and 31c. The first diversion structure 32 and the second diversion structure 33 have a multi-channel design, and the disc body 310 has a disc-shaped design. The fan blade assembly 261 is pivotally located in the shaft fixing member 31d and the lower groove 29.

As shown in Figure 1D, the fan blade assembly 261 includes a fan blade 262 and a shaft rod 263 passing through the fan blade 262. The shaft rod 263 has a bottom end 263B and a top end 263A opposite to each other. 263 is arranged so that the bottom end 263B of the shaft 263 can be set in the shaft fixing member 31d through the opening 270 or the top end 263A of the shaft 263 can be set in the groove 29 under the housing 20 (2A Figure), and an annular Mylar gasket (not shown in the figure) can be added to the shaft 263 between the fan blade 262 and the shaft fixing member 31d to prevent the fan blade 262 from interacting with each other when rotating. The shaft rod holder 31d is worn out. In one embodiment, the fan blade 262 of the fan blade assembly 261 includes a chassis 264 and a plurality of blades 266 disposed on the chassis 264, and the chassis 264 has a hollow portion 265. When the fan blade assembly 261 rotates, the hollow portion 265 can suck up the working fluid under the fan blade 262, and then flow out the liquid cooling head 2 from the adjacent drain channel 23, but not limited to this.

In detail, the working fluid passing through the heat transfer structure 34 will flow out from the middle and both sides, the part flowing out from the middle will directly enter the flow channel 31a, and the part flowing out from both sides will be separately Enter the first flow guiding structure 32 or the second flow guiding structure 33. Therefore, surrounded by the space of the housing 20, the baffle 35, and the base 30, the working fluid flowing out of the first diversion structure 32 can be guided to the flow channel 31b, and from the second diversion The working fluid flowing out of the structure 33 can be guided to the flow passage 31c. Therefore, with the design of the first diversion structure 32, the second diversion structure 33, and the water collection structure 31, the guiding and concentration effect of the working fluid flow can be effectively improved, so that the fan blade assembly 261 can It is more conducive to suction and drainage.

FIG. 5A is a three-dimensional schematic diagram of a liquid cold head 3 according to an embodiment. Figure 5B is an exploded schematic view of the components of the liquid cold head 3 of this embodiment. As shown in Figures 5A and 5B, the liquid-cooled head 3 is substantially the same as the above-mentioned liquid-cooled head 2. The difference is that the liquid-cooled head 3 is an integrated double-cavity body, in which the first water inlet channel 21 and the drain The channel 23 is oppositely located on the housing 20 and is located in a half of the housing 20. The liquid cooling head 3 further includes two external channels 220 and 221 and a pipeline 290. The external passages 220 and 221 are respectively located on two opposite sides of the casing 20 and located in the other half of the casing 20. In this embodiment, the number of holes of the liquid cooling head 3 is increased to 4, so that the water route of the pipeline can become more flexible, thereby reducing the space occupied by the pipeline 290 for the system. The pipeline 290 is fixedly located in the housing 20 (that is, in the water storage cavity 201 ), and is connected to the external channels 220 and 221, and is airtightly isolated from the water storage cavity 201. Different from the working fluid sent from the drainage channel 23, the external channel 220 is used to send another source of working fluid (as indicated by the arrow in Figure 5A), and flow out from the external channel 221 through the pipeline 290.

FIG. 6 is an exploded schematic view of the housing 20 of the liquid cold head according to an embodiment. As shown in FIG. 5B and FIG. 6, more specifically, the baffle 35 has a groove 353. The groove 353 is formed on the side of the baffle 35 facing the housing 20. The housing 20 further includes a tube cover 600. The pipe cover 600 covers the groove 353 to form the pipeline 290 described above. The housing 20 includes two positioning grooves 211. The positioning grooves 211 are located in the upper chamber (such as the water storage cavity 201 ), and are recessed at intervals on the inner surface 359 of the housing 20 facing the baffle 35. The tube cover 600 further includes two positioning ribs 610. The two positioning ribs 610 are respectively integrally formed to connect the outer surface of the pipe cover 600. Wherein, when the housing 20 and the baffle 35 are combined with each other, each positioning rib 610 is inserted into one of the positioning grooves 211 in a matching manner to position the pipe cover 600.

An embodiment is now used to describe the implementation of the liquid cooling module 4 proposed by the present invention. Please refer to Figure 7A to Figure 9. Figures 7A to 7C are three-dimensional schematic diagrams of the liquid cooling module 4; Figure 7D is an exploded schematic view of the components of the liquid cooling module 4; Figure 8A is a perspective view of the liquid cooling module 4 as a vertical cross-sectional view Schematic diagram; Figure 8B is a schematic diagram of the flow direction of the working fluid in the liquid cooling module 4; Figure 9 is a schematic diagram of the liquid cooling module 4 and an external fan 50 arrangement.

As shown in FIGS. 7A to 7D, the liquid cooling module 4 of the present invention mainly includes two parts, one is a tower-type liquid cooling exhaust device 40, and the other is a liquid cooling head 2' And the tower-type liquid cooling device 40 is vertically stacked on the liquid cooling head 2'. This liquid-cooled head 2'is the liquid-cooled head used in the above-mentioned embodiment. However, in order to be vertically integrated with the tower-type liquid cooling device 40, a first water inlet channel 21' and a drain channel 23' in the liquid cooling head 2'of this embodiment adopt L-shaped nozzles, and at the same time The liquid cooling module 4 also includes a front pipeline 41 and a rear pipeline 42 so that the liquid cooling head 2'can pass through the front pipeline 41 and the rear pipeline 42 and the tower-type liquid cooling exhaust device 40 The upper and lower water circulation.

In detail, the tower-type liquid cooling device 40 further includes an upper box 43, a lower box 44, and a heat dissipation stacking structure 450. The upper tank 43 has a water inlet 431 and a water outlet 432, wherein the upper tank 43 is connected to the front pipeline 41 through the water inlet 431, and is connected to the rear pipeline 42 through the water outlet 432. Secondly, the front pipeline 41 connects the water inlet 431 and the drainage channel 23, and the rear pipeline 42 connects the water outlet 432 and the first water inlet channel 21'. The heat dissipation laminated structure 450 includes a plurality of heat dissipation fin groups 45. These heat dissipation fin groups 45 are located between the upper box 43 and the lower box 44. Each heat dissipation fin group 45 is composed of a row of plural heat dissipation fins stacked between the upper case 43 and the lower case 44. It is understandable that the stacking between the tower-type liquid cooling device 40 and the liquid cooling head 2'also requires the use or design of related locking members or locking structures to enhance the bonding strength between each other.

It is also shown in FIGS. 7A and 7B that the liquid cooling module 4 further includes a casing 400, and FIGS. 7C and 7D respectively show the appearance and decomposition of the casing 400 after the casing 400 is removed. As shown in Figures 7A and 7B, the housing 400 is unshielded at the ends corresponding to the drainage channel 23' and the first water inlet channel 21', that is, when the housing 400 is assembled, it will The radiating fin group 45 of the tower-type liquid-cooled exhaust device 40 is exposed (see Fig. 7D). Secondly, the front duct 41 and the rear duct 42 on the side can also provide a windshield function. With the design of the housing 400, in addition to allowing outside air to enter the airflow channels of the heat dissipation fin sets 45, The resistance of the air flow can also be reduced to make the air flow more concentrated, thereby enhancing the air cooling effect of the heat dissipation fin sets 45.

Therefore, as shown in Fig. 7B, the side surface of the housing 400 corresponding to the first water inlet channel 21' can be further designed as a sloping plate 401 that expands obliquely outward to facilitate the concentrated flow of airflow.

As shown in FIG. 8A, the heat dissipation laminated structure 450 further includes a plurality of fin tube layers 460. Each fin tube layer 460 includes a plurality of fin tubes 46, and the fin tubes 46 are parallel to each other and located between any two adjacent heat dissipation fin groups 45. The fin tubes 46 and the heat dissipating fin groups 45 are arranged in a manner that a row of heat dissipating fin groups 45 are inserted beside a row of fin tubes 46 to form multiple rows of alternate insertion. In addition, in this embodiment, the upper box 43 is designed to have a plurality of first chambers 430 isolated from each other. The first chambers 430 are arranged in sequence, and the first first chamber 430 is connected to the water inlet 431, and the last one is A chamber 430 is connected to the water outlet 432. The lower box 44 has a plurality of second chambers 440 separated from each other, and the second chambers 440 are arranged in sequence. The distribution range of the second cavities 440 corresponds to the distribution range of the first cavities 430. The fin tubes 46 form fluid communication between the second chambers 440 and the first chambers 430. The fin tubes 46 are respectively connected to the first chambers 430 and the second chambers 440, so that an S-shaped path is formed in the upper box 43, the heat dissipation stack structure 450, and the lower box 44 ( Figure 8B).

Please refer to Figure 8A and Figure 8B at the same time. When the working fluid gradually fills one of the first chambers 430, the working fluid can pass through the corresponding one or more fin tubes 46 and drop into the corresponding second chamber 440. When the working fluid maintains a certain water pressure and quantity, the working fluid will flow from the front end to the back end in the second chambers 440, or it may be squeezed and pass through the corresponding one or more fins again. The tube 46 rises to the next or adjacent first chamber 430. In this way, after repeated descending and ascending processes, the working fluid can fully exchange heat with the heat dissipation fin groups 45. The flow direction of the working fluid in the liquid cooling module 4 can be as shown by the solid arrow in Figure 8B. However, it is understandable that the actual flow situation will not be limited to this, and the flow pattern may also be changed depending on the situation.

From the schematic of the embodiment, it can be seen that the working fluid flowing out from the drain channel 23' is relatively high temperature, so the working fluid in the front pipe 41 will be relatively hot. Since the second chambers 440 only have outlets in fluid communication with the fin tubes 46, the working fluid flowing in the first chambers 430, the fin tubes 46, and the second chambers 440 will eventually be It is squeezed and flows to the water outlet 432, and finally flows into the rear pipe 42. The working fluid in the rear pipe 42 will have a relatively low temperature, so that it can return to the liquid cold head 2'for cooling. The working fluid with a relatively low temperature in the rear pipe 42 can then receive the outside air flow on the inlet side (as shown by the hollow arrow in Figure 8B) for air-cooling, thereby improving the heat dissipation effect.

In FIG. 9, the appearance of the liquid cooling module 4 after the housing 400 is removed for illustration. As shown in Figure 9, the liquid cooling module 4 can be configured with the external fan 50. The external fan 50 is located on one side of the heat dissipation laminated structure 450 and is fixed to the upper box 43 and the lower box 44 In between, it is used to output air flow toward the heat dissipation fin group 45. The best setting position of the external fan 50 is the exposed part of the heat dissipation fin groups 45 above the first water inlet channel 21'. In other words, the external fan 50 and the 21' of the liquid cooling head 2'are both located on the same side of the liquid cooling module 4.

It should be understood that the above-mentioned liquid-cooled head of the present invention may be, for example, a water-cooled head, and the liquid-cooled module may be, for example, a water-cooled module. However, the present invention is not limited to this.

In this way, through the structures described in the above embodiments, the present invention can not only achieve good heat dissipation efficiency, but is also beneficial to be applied to related computer equipment, host or server equipment.

Finally, the various embodiments disclosed above are not intended to limit the present invention. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of the present invention, and they can all be protected in this invention. Inventing. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

2, 2’, 3: Liquid cooling head 10: Chassis 20: shell 200: upper cover 201: water storage cavity 21, 21’: The first water inlet channel 211: positioning slot 22: The second water inlet channel 220, 221: external channel 23, 23’: Drainage channel 24: Single hole locking ring 25: Double hole locking ring 26: Pump group 260: drive components 261: Fan Blade Assembly 262: fan blade 263: Shaft 263A: Top 263B: bottom 264: Chassis 265: Hollow 266: blade 27: baffle 270: Hole 28: upper groove 29: Lower groove 290: pipeline 30: base 30A: The inner surface of the base 301: Lower Chamber 31: Catchment structure 31a, 31b, 31c: three runners 31d: Axle rod fixing 310: Disc body 310A: Disc surface 32: The first diversion structure 33: The second diversion structure 34: Heat transfer structure 341: Fins 35, B35, C35, D35: baffle 350: Connecting opening B351, B352, C351, D351: connecting gap 353: Groove 359: Inside 4: Liquid cooling module 40: Tower type liquid cooling device 400: Shell 401: inclined plate 41: Front line 42: rear pipeline 43: upper box 430: first chamber 431: Water Inlet 432: water outlet 44: lower box 440: second chamber 45: cooling fin set 450: Heat dissipation stack structure 46: Fin tube 460: fin tube layer 50: external fan 600: pipe cover 610: positioning rib

In order to make the above and other objectives, features, advantages and embodiments of the present invention more comprehensible, the description of the accompanying drawings is as follows: Fig. 1A and Fig. 1B are three-dimensional schematic diagrams of a liquid-cooled head according to an embodiment; Figure 1C is an exploded schematic diagram of the components of the liquid cold head of this embodiment; Figure 1D is a three-dimensional schematic diagram of the fan blade assembly of this embodiment; Figure 2A is a schematic diagram of the assembly of the housing and the baffle of this embodiment; Figures 2B to 2D are schematic diagrams of the changes of different baffles; 3A to 3D are schematic diagrams of the flow direction of the working fluid in the liquid-cooled head; Figures 4A and 4B are schematic diagrams of the arrangement of the base and water collection structure of this embodiment; FIG. 5A is a three-dimensional schematic diagram of a liquid-cooled head according to an embodiment; Figure 5B is an exploded schematic diagram of the components of the liquid cold head of this embodiment; Fig. 6 is an exploded schematic diagram of the housing of the liquid cold head according to an embodiment; Figures 7A to 7C are three-dimensional schematic diagrams of the liquid cooling module; Figure 7D is an exploded schematic diagram of the components of the liquid cooling module; Figure 8A is a three-dimensional schematic diagram of the liquid cooling module in a vertical cross-sectional view; Figure 8B is a schematic diagram of the flow direction of the working fluid in the liquid cooling module; and FIG. 9 is a schematic diagram of the arrangement of a liquid cooling module and an external fan according to an embodiment.

Domestic deposit information (please note in the order of deposit institution, date and number) without Foreign hosting information (please note in the order of hosting country, institution, date, and number) without

20: shell

201: water storage cavity

22: The second water inlet channel

30: base

301: Lower Chamber

32: The first diversion structure

34: Heat transfer structure

35: bezel

350: Connecting opening

Claims (14)

A liquid-cooled head, including: A casing includes a casing, a baffle, and a base. The casing, the baffle and the base are sequentially combined into one body. An upper chamber is formed between the casing and the baffle. The baffle A lower chamber is formed between the base and the base, and a communication opening is located on the baffle plate, and connects the upper chamber and the lower chamber that are stacked on each other; A first water inlet channel located on one side of the casing and connected to the upper chamber for feeding a source of working fluid into the upper chamber; A heat transfer structure located in the lower chamber and sandwiched between the baffle and the base to take away the heat energy of the working fluid; A water collecting structure located in the lower chamber for collecting the working fluid passing through the heat transfer structure; A drainage channel located on one side of the housing and connected to the lower chamber; and A pump group is used to discharge the working fluid in the lower chamber to the drainage channel. The liquid-cooled head as described in claim 1, further including: A second water inlet channel is located on the other side of the housing and is connected to the upper chamber for feeding working fluid from another source into the upper chamber, The first water inlet channel and the second water inlet channel are respectively located on the housing oppositely. The liquid-cooled head according to claim 1, wherein the first water inlet channel and the drain channel are located on the same side of the housing; or, The first water inlet channel is located on the housing opposite to the drain channel. The liquid-cooled head according to claim 1, wherein the baffle further has at least one communication gap, the communication gap is located between the communication opening and the first water inlet channel, and connects the upper chamber and the lower chamber room. The liquid-cooled head according to claim 1, wherein the heat transfer structure includes a plurality of fins arranged side by side with each other, the base has a first diversion structure and a second diversion structure, the fins and the water collection The structure, the first diversion structure and the second diversion structure are all formed on the inner surface of a base of the base facing the casing, and the first diversion structure and the second diversion structure are located in the same place as the heat transfer structure The side is used for guiding the working fluid passing through the fins to the water collecting structure respectively, and the water collecting structure is located between the first diversion structure and the second diversion structure. The liquid-cooled head according to claim 5, wherein the water collecting structure comprises a disc body and three flow channels, the disc body is located on the inner surface of the base of the base, and the flow channels are mutually formed on the disc The main body faces a disc surface of the casing for receiving the working fluid sent from the fins, the first diversion structure and the second diversion structure respectively. The liquid-cooled head according to claim 6, wherein the pump set includes a driving assembly and a fan blade assembly, and the driving assembly can rotate the fan blade assembly without contact; The fan blade assembly includes a fan blade and an axial rod passing through the fan blade, the water collecting structure includes an axial rod fixing member, the housing includes a baffle, and the axial rod fixing member is located at the intersection of one of the flow passages, The baffle is sandwiched between the disc body and the fan blade and covers the flow passages, the baffle has an opening, and the shaft rod passes through the opening and is set on the shaft rod fixing member; and The two opposite surfaces of the casing respectively have an upper groove and a lower groove. The lower groove is vertically aligned with the upper groove and is airtightly isolated from the upper groove, and the upper groove accommodates the driving assembly, The lower groove accommodates the fan blade assembly, and the fan blade assembly is pivotally located in the shaft fixing part and the lower groove. The liquid-cooled head as described in claim 1, further including: Two external channels located on two opposite sides of the casing; and A pipeline is located in the upper chamber, connected to the external channels, and is airtightly isolated from the upper chamber. The liquid-cooled head according to claim 8, wherein the baffle has a groove, and the casing further includes a pipe cover covering the groove to form the pipeline. The liquid-cooled head according to claim 9, wherein the housing includes a positioning groove located in the upper chamber and recessed on an inner surface of the housing facing the baffle; and The casing further includes a positioning rib, which is integrally formed to connect to the outer surface of the pipe cover, and extends into and abuts against the positioning groove for positioning the pipe cover. A liquid cooling module includes: The liquid-cooled head as described in claim 1; A tower type liquid cooling exhaust device, including: An upper box body includes a water inlet, a water outlet, and a plurality of first chambers isolated from each other. One of the first chambers is connected to the water inlet, and the other of the first chambers is connected to the Outlet; The lower box is vertically stacked on the top of the liquid cooling head and contains a plurality of second chambers isolated from each other; and A heat-dissipating laminated structure includes a plurality of heat-dissipating fin groups and a plurality of fin tubes, the heat-dissipating fin groups and the fin tubes are located between the upper box and the lower box, and the fins are parallel to each other and located at any position. Between two adjacent heat dissipation fin sets, the fin tubes are respectively connected to the first chambers and the second chambers, so that an S-shaped path is formed on the upper box and the heat dissipation laminated structure With the lower box; A front pipeline connecting the water inlet and the drainage channel of the liquid cooling head; and A rear pipeline connects the water outlet and the first water inlet channel of the liquid cooling head. The liquid-cooled module according to claim 11, wherein the tower-type liquid-cooled exhaust device further includes an external fan, the external fan is located on one side of the heat dissipation stack structure, and is fixed between the upper case and the lower case It is used to output air flow toward the heat dissipation fin group. The liquid cooling module according to claim 12, wherein the external fan and the first water inlet channel of the liquid cooling head are both located on the same side of the liquid cooling module. The liquid cooling module according to claim 11, wherein the housing has a sloping plate that expands obliquely outwards on a side surface corresponding to the first water inlet channel.

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