Liquid cooling module and liquid cooling head

Abstract

A liquid cooling module and a liquid cooling head thereof, the liquid cooling head comprising a casing, a water inlet channel, a heat transfer structure, a water collecting structure, a drainage channel and a pump group. The casing comprises an upper chamber and a lower chamber. The upper chamber is connected to the lower chamber through a connecting opening. The water inlet channel is located on one side of the casing and connected to the upper chamber for feeding a working fluid into the upper chamber. The heat transfer structure is located in the lower chamber for taking 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 casing and connected to the lower chamber. The pump group is used to discharge the working fluid in the lower chamber to the drainage channel. Through the above structure, the liquid cooling head can achieve good heat dissipation technical effects, and can also be beneficially applied to related computer equipment, host or server equipment.

Description

Technical Field

[0001] The invention relates to a heat dissipation module, and in particular to a liquid cooling module and a liquid cooling head thereof. Background Art

[0002] With the advancement and popularization of science and technology, various electronic devices or computer equipment have long become indispensable in people's daily lives, such as laptops, desktop computers, network servers, etc. Generally speaking, the internal electronic components of these products will increase in temperature during operation, and high temperatures 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 using fans to provide airflow for convection cooling, or attaching heat dissipation units made of special materials to produce conduction cooling, water cooling is also an effective and common heat dissipation design.

[0003] The principle of water cooling is to use liquid (such as water or coolant) as the heat dissipation medium, and use a continuously running water pump or pump to form a continuous circulation in the system. The liquid flows in closed pipes, and these pipes are distributed to the surface of each electronic component in the system (such as the central processing unit). When the relatively low temperature liquid flows through these relatively high temperature electronic components, it absorbs their heat to slow down the increase in their temperature. Then, the heat is released through the pipe to exchange heat with the outside world or other heat dissipation mechanisms to reduce the temperature of the liquid, and then the liquid is returned to the system for circulation and heat dissipation.

[0004] However, since the internal space of general computer equipment, host or server equipment is limited, it can only be used in the space of the environment in which it is set, and water cooling heat dissipation must have the design of the inflow and outflow of the pipeline, which makes the setting of the pipeline relatively complicated. Therefore, how to design a water cooling heat dissipation structure with good heat dissipation technology effect, and at the same time take into account the overall pipeline configuration, reduce the occupied space to facilitate the setting in a small environment, and effectively complete the connection with other pipelines and avoid water leakage, is the main purpose of the development of the present disclosure. Summary of the invention

[0005] An object of the present invention is to provide a liquid cooling module and a liquid cooling head thereof to solve the difficulties mentioned in the above prior art.

[0006] One embodiment of the present invention provides a liquid cooling head. The liquid cooling head includes a casing, a first water inlet channel, a heat transfer structure, a water collecting 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 combined into one body in sequence. An upper chamber is formed between the shell and the baffle. A lower chamber is formed between the baffle and the base. The connecting opening is located on the baffle 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 shell and connected to the upper chamber to feed a working fluid from a source into the upper chamber. The heat transfer structure is located in the lower chamber and is clamped 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 to collect the working fluid passing through the heat transfer structure. The drainage channel is located on one side of the shell and connected to the lower chamber. The pump group is used to discharge the working fluid in the lower chamber to the drainage channel.

[0007] According to one or more embodiments of the present invention, the liquid cooling head further comprises a second water inlet channel. The second water inlet channel is located on the other side of the shell and is connected to the upper chamber to feed 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 shell opposite to each other.

[0008] According to one or more embodiments of the present invention, in the above-mentioned liquid cooling head, the first water inlet channel and the drainage channel are located on the same side of the shell, or the first water inlet channel and the drainage channel are located on the shell opposite to each other.

[0009] According to one or more embodiments of the present invention, in the above-mentioned liquid cooling 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.

[0010] According to one or more embodiments of the present invention, in the above-mentioned liquid cooling head, the heat transfer structure includes a plurality of fins arranged in parallel with each other. The base has a first flow guide structure and a second flow guide structure. These fins, the water collecting structure, the first flow guide structure and the second flow guide structure are all formed on an inner surface of the base facing the shell. The first flow guide structure and the second flow guide structure are located on the same side of the heat transfer structure, and are used to guide the working fluid passing through these fins to the water collecting structure respectively. The water collecting structure is located between the first flow guide structure and the second flow guide structure.

[0011] According to one or more embodiments of the present invention, in the above-mentioned liquid cooling 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 formed on a disc surface of the disc body facing the shell, and are used to receive the working fluid sent from the fins, the first guide structure and the second guide structure respectively.

[0012] According to one or more embodiments of the present invention, in the above-mentioned liquid cooling head, the pump group includes a driving component and a fan blade component. The driving component is capable of rotating the fan blade component non-contact. The fan blade component includes a fan blade and an axial rod passing through the fan blade, the water collection structure includes an axial rod fixing part, and the housing includes a baffle. The axial rod fixing part is located at the intersection of these flow channels. The baffle is clamped between the disc body and the fan blade, and covers these flow channels. The baffle has an opening, and the axial rod passes through the baffle and is arranged on the axial rod fixing part. 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 each other with the upper groove. The upper groove accommodates the driving component, and the lower groove accommodates the fan blade component. The fan blade component is pivotally located in the axial rod fixing part and the lower groove.

[0013] According to one or more embodiments of the present invention, the liquid cooling head further comprises two external channels and a pipeline. The external channels are located at two opposite sides of the shell. The pipeline is located in the upper chamber and connects the external channels and is airtightly isolated from the chamber.

[0014] According to one or more embodiments of the present invention, in the above-mentioned liquid cooling head, the baffle has a groove, and the housing further includes a pipe cover, which covers the groove to form the pipeline.

[0015] 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 housing facing the baffle. The housing also includes a positioning rib, which is integrally formed with the outer surface of the tube cover and extends into and abuts against the positioning groove to position the tube cover.

[0016] One embodiment of the present invention provides a liquid cooling module. The liquid cooling module includes the above-mentioned liquid cooling head, a tower-type liquid cooling row device, a front pipeline and a rear pipeline. The tower-type liquid cooling row device includes an upper box, a lower box and a heat dissipation stacking structure. The upper box includes a water inlet, a water outlet, and a plurality of mutually isolated first chambers. One of the first chambers is connected to the water inlet, and another of the first chambers is connected to the water outlet. The lower box is vertically stacked on the top of the liquid cooling head and includes a plurality of mutually isolated second chambers. The heat dissipation stacking structure includes a plurality of heat dissipation fin groups and a plurality of fin tube layers. These heat dissipation fin groups and these fin tubes are located between the upper box and the lower box. These fin tubes are parallel to each other and are located between any two adjacent heat dissipation fin groups. These fin tubes are connected to the first chamber and the second chamber respectively, so that an S-shaped path is formed in the upper box, the heat dissipation stacking structure and the lower box. The front pipeline connects the water inlet and the drainage channel of the liquid cooling head. The rear pipeline is connected to the water outlet and the first water inlet channel of the liquid cooling head.

[0017] According to one or more embodiments of the present invention, in the above-mentioned liquid cooling module, the tower type liquid cooling device further comprises an external fan. The external fan is located on one side of the heat dissipation stack structure, fixed between the upper box and the lower box, and outputs airflow toward the heat dissipation fin group.

[0018] 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.

[0019] According to one or more embodiments of the present invention, in the above-mentioned liquid cooling module, the housing has an inclined plate that expands obliquely outward on a side surface corresponding to the first water inlet channel.

[0020] Thus, through the architecture of the above embodiments, the present invention can not only achieve good heat dissipation technical effects, but also be advantageously applied to related computer equipment, host or server equipment.

[0021] The above description is only used to illustrate the problems to be solved by the present invention, the technical means to solve the problems, and the technical effects produced, etc. The specific details of the present invention will be introduced in detail in the following implementation methods and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the above and other purposes, features, advantages and embodiments of the present invention more clearly understood, the accompanying drawings are described as follows:

[0023] Figure 1A and Figure 1B A three-dimensional schematic diagram of a liquid cooling head according to an embodiment;

[0024] Figure 1C This is a schematic diagram of the components of the liquid cooling head of this embodiment;

[0025] Figure 1D This is a three-dimensional schematic diagram of the fan blade assembly of this embodiment;

[0026] Figure 2A This is a schematic diagram of the assembly of the housing and the baffle of this embodiment;

[0027] FIG. 2B to FIG. 2D Schematic diagram of the changes of different baffles;

[0028] FIG. 3A to FIG. 3D A schematic diagram of the flow direction of the working fluid in the liquid cooling head;

[0029] Figure 4A and Figure 4B A schematic diagram of the arrangement of the base and the water collection structure of this embodiment;

[0030] Figure 5A A three-dimensional schematic diagram of a liquid cooling head according to an embodiment;

[0031] Figure 5B This is a schematic diagram of the components of the liquid cooling head of this embodiment;

[0032] Figure 6 An exploded schematic diagram of a housing of a liquid cooling head according to an embodiment;

[0033] 7A to 7C is a three-dimensional schematic diagram of a liquid cooling module;

[0034] Fig.7D This is a schematic diagram of the components of the liquid cooling module;

[0035] Fig. 8A A three-dimensional schematic diagram of a vertical section view of a liquid cooling module;

[0036] Figure 8B is a schematic diagram of the flow direction of the working fluid in the liquid cooling module; and

[0037] Fig. 9 FIG. 4 is a schematic diagram of the arrangement of a liquid cooling module and an external fan according to an embodiment.

[0038] Description of reference numerals:

[0039] 2, 2', 3: Liquid cooling head

[0040] 10: Casing

[0041] 20: Shell

[0042] 200: Upper cover

[0043] 201: Water storage chamber

[0044] 21, 21': First water inlet channel

[0045] 211: Positioning slot

[0046] 22: Second water inlet channel

[0047] 220, 221: External channels

[0048] 23, 23': Drainage channel

[0049] 24: Single hole locking ring

[0050] 25: Double hole locking ring

[0051] 26: Pump Group

[0052] 260: Drive components

[0053] 261: Fan blade assembly

[0054] 262: Fan Blade

[0055] 263: Shaft rod

[0056] 263A: Top

[0057] 263B: Bottom

[0058] 264: Chassis

[0059] 265: Hollow part

[0060] 266: Blade

[0061] 27: Blocking piece

[0062] 270: Opening

[0063] 28: Upper groove

[0064] 29: Lower groove

[0065] 290: Pipeline

[0066] 30: Base

[0067] 30A: Inner surface of base

[0068] 301: Lower chamber

[0069] 31: Water collection structure

[0070] 31a, 31b, 31c: three flow channels

[0071] 31d: Shaft rod fixing

[0072] 310: Disc body

[0073] 310A: Disc surface

[0074] 32: The first diversion structure

[0075] 33: Second diversion structure

[0076] 34: Heat transfer structure

[0077] 341: Fins

[0078] 35, B35, C35, D35: Baffle

[0079] 350: Connecting opening

[0080] B351, B352, C351, D351: Connecting gap

[0081] 353: Groove

[0082] 359: Inside

[0083] 4: Liquid cooling module

[0084] 40: Tower type liquid cooling device

[0085] 400: Shell

[0086] 401: Inclined Plate

[0087] 41: Front pipe

[0088] 42: Rear pipe

[0089] 43: Upper box

[0090] 430: First Chamber

[0091] 431: Water Inlet

[0092] 432: Water outlet

[0093] 44: Lower box

[0094] 440: Second Chamber

[0095] 45: Heat sink fin assembly

[0096] 450: Heat dissipation stacking structure

[0097] 46: Fin tube

[0098] 460: Fin tube layer

[0099] 50: External fan

[0100] 600: Tube cover

[0101] 610: Positioning rib DETAILED DESCRIPTION

[0102] The following will disclose multiple embodiments of the present invention with the accompanying drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in the embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and elements will be shown in the drawings in a simple schematic manner.

[0103] The implementation of the liquid cooling head 2 proposed by the present invention is now described with an embodiment. Figures 1A to 4B .in Figure 1A and Figure 2B is a three-dimensional schematic diagram of the liquid cooling head 2; Figure 1C It is a schematic diagram of the components of the liquid cooling head 2; Figure 2A is a schematic diagram of the assembly of a housing 20 and a baffle 35; FIG. 2B to FIG. 2D Schematic diagram of the changes of different baffles; FIG. 3A to FIG. 3D is a schematic diagram of the flow direction of the working fluid in the liquid cooling head 2; Figure 4A and Figure 4BIt is a schematic diagram of the arrangement of a base 30 and a water collecting structure 31 .

[0104] like Figures 1A to 1C As shown, the liquid cooling head 2 of the present invention mainly includes a housing 10, a pump assembly 26, a first water inlet channel 21, a second water inlet channel 22 and a drainage channel 23. The pump assembly 26 includes a driving assembly 260 and a fan assembly 261. The housing 10 includes an upper cover 200, a shell 20, a baffle 35 and a base 30. The upper cover 200, the shell 20, the baffle 35 and the base 30 are sequentially combined into one body. An upper chamber (such as a water storage chamber 201) is formed between the shell 20 and the baffle 35. A lower chamber 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 shell 20 have an upper groove 28 and a lower groove 29 respectively. The upper groove 28 is used to accommodate 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 to accommodate the fan blade assembly 261. The driving assembly 260 can rotate the fan blade assembly 261 non-contactly. For example, the driving assembly 260 can magnetically induce the fan blade assembly 261 to rotate non-contactly.

[0105] The shell 20 is the main structural member of the liquid cooling head 2. The first water inlet channel 21 is arranged at one end thereof for feeding a working fluid from a source, and the second water inlet channel 22 and the drainage channel 23 are arranged at the other end. In other words, the second water inlet channel 22 and the drainage channel 23 are located on the same side of the shell 20, and are located on the shell 20 opposite to the first water inlet channel 21. The second water inlet channel 22 is used to feed a working fluid from another source. The shell 20 also has an electromechanical chamber to accommodate the drive 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-hole locking ring 25 is used to lock the second water inlet channel 22 and the drainage channel 23 to avoid water leakage at the connection between these channels.

[0106] The housing 20 is disposed between the upper cover 200 and the base 30, and the baffle 35 is disposed between the housing 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 disposed on the base inner surface 30A of the base 30 facing the housing 20. The heat transfer structure 34 includes a plurality of fins 341 arranged in parallel with each other. The water collecting structure 31 is located between the first flow guiding structure 32 and the second flow guiding structure 33. The water collecting structure 31, the first flow guiding structure 32 and the second flow guiding structure 33 are connected to the heat transfer structure 34 or adjacent to the same side of the heat transfer structure 34. The first flow guiding structure 32 and the second flow guiding structure 33 are both formed on the base inner surface 30A of the base 30. In addition, the housing 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 in collecting water to prevent the working fluid from flowing back. The baffle 27 has an opening 270. The baffle 27 is, for example, a copper sheet, but the present invention is not limited thereto.

[0107] like Figure 1C and Figure 2A As shown, when the baffle 35 is assembled to the housing 20, the upper chamber is, for example, a water storage chamber 201 formed between the housing 20 and the baffle 35, for temporarily storing the working fluid. The baffle 35 is also disposed above the heat transfer structure 34, and separates the upper water storage chamber 201 from the lower chamber 301 accommodated by the heat transfer structure 34 (see FIG. 3A to FIG. 3B ). Figure 3C The baffle 35 also has a connecting opening 350, and the connecting opening 350 connects the water storage chamber 201 at the upper layer with the lower chamber 301 at the lower layer. Thus, 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 downward into the lower chamber 301 through the connecting opening 350.

[0108] However, the concept of the present invention is not limited thereto, and the related connecting structure of the baffle 35 can also be designed in other ways. FIG. 2B to FIG. 2D 35, C35, and D35 are shown in the figure, wherein the baffle B35 has two connecting gaps B351 and B352, the baffle C35 has a connecting gap C351, and the baffle D35 has a connecting gap D351. The connecting gaps B351, B352, C351, and D351 are respectively located between the connecting opening 350 and the second water inlet channel 22.

[0109] Therefore, the multiple connecting gaps B351, B352, C351, and D351 can also provide working fluids to pass through and flow downward. It can be understood that, depending on the flow speed of the working fluid or the different water pressures of the delivery, the working fluid may first pass through the above-mentioned connecting gaps, or pass through the relatively far-positioned connecting opening 350. In other words, if the above-mentioned connecting gaps are designed, the original connecting opening 350 can produce a diversion effect, so that the relatively low-temperature working fluid can be evenly guided to the heat transfer structure 34 or various parts of the lower chamber 301 and can evenly exchange heat with the heat transfer structure 34, so that the liquid cooling head 2 presents a good uniform temperature condition. Of course, the position, shape, size or number of the above-mentioned connecting gaps may not be fixed. FIG. 2B to FIG. 2D The shapes shown are limited to those shown in the figure, and the shapes such as square, triangle, circle, etc. are also possible, and the side lengths of the perforations of various shapes can be wavy or sawtooth, etc.

[0110] Figure 3A The vertical cross section is schematically shown in the direction of extension of the pipe opening of the second water inlet channel 22; Figure 3B The vertical cross section is schematically shown in the direction of extension of the pipe opening of the first water inlet channel 21; Figure 3C The vertical cross section is schematically shown in the direction in which the pipe opening of the drainage channel 23 extends; Figure 3D The horizontal cross section is shown in the pipe diameter direction of the first water inlet channel 21, the second water inlet channel 22 and the drainage channel 23. FIG. 3A to FIG. 3D The lower chamber 301 is defined by the housing 20 , the baffle 35 and the base 30 . In addition to the heat transfer structure 34 , the water collecting structure 31 , the first flow guiding structure 32 and the second flow guiding structure 33 are also accommodated in the lower chamber 301 .

[0111] like FIG. 3A to FIG. 3D As shown, the working fluid entering the liquid cooling 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 will first flow into the water storage chamber 201, and then turn to flow downward through the connecting opening 350 to 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, and part of it may directly turn to flow downward through the connecting opening 350 to the lower chamber 301. Then, the working fluid may exchange heat with the heat transfer structure 34 through the interior of the heat transfer structure 34. Finally, the working fluid enters the bottom of 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 drainage channel 23.

[0112] Figure 4AThe fan blade assembly 261 and the baffle 27 are shown as being disposed on the water collecting structure 31. As described above, the water collecting structure 31 is located between the first flow guiding structure 32 and the second flow guiding structure 33. Figure 4B It is also shown that the water collecting structure 31 has a disc body 310, three flow channels 31a, 31b, 31c and an axial rod fixing member 31d, wherein the plurality of flow channels 31a, 31b, 31c are formed on a disc surface 310A of the disc body 310 facing the housing 20, and more specifically, the flow channels 31a, 31b, 31c are formed on the disc surface 310A of the disc body 310 facing the housing 20 at these angles. The flow channel 31a is directly connected to or adjacent to the heat transfer structure 34, while the flow channel 31b is adjacent to the first flow guide structure 32, and the flow channel 31c is adjacent to the second flow guide structure 33. However, the present invention does not limit the flow channels 31a, 31b, 31c to be formed on the disc body 310 at equal angles. The axial rod fixing member 31d is located at the intersection of the flow channels 31a, 31b, 31c. The first guide structure 32 and the second guide structure 33 are of a multi-channel design, and the disc body 310 is of a disc-shaped design. The fan blade assembly 261 is pivotally located in the shaft fixing member 31 d and the lower groove 29 .

[0113] like Figure 1D As shown, the fan blade assembly 261 includes a fan blade 262 and an axial rod 263 inserted into the fan blade 262, wherein the axial rod 263 has a bottom end 263B and a top end 263A opposite to each other, and the axial rod 263 is arranged in such a manner that the bottom end 263B of the axial rod 263 is arranged on the axial rod fixing member 31d through the opening 270 or the top end 263A of the axial rod 263 is arranged in the lower groove 29 of the housing 20 ( Figure 2A ), and an annular Mylar gasket (not shown) may be added to the shaft rod 263 between the fan blade 262 and the shaft rod fixing member 31d to prevent the fan blade 262 from wearing the shaft rod fixing member 31d when rotating. 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 absorb the working fluid under the fan blade 262 upward, and then flow out of the liquid cooling head 2 from the adjacent drainage channel 23, but the present invention is not limited thereto.

[0114] In detail, the working fluid flowing through the heat transfer structure 34 will flow out from the middle and both sides, wherein the portion flowing out from the middle will directly enter the flow channel 31a, and the portion flowing out from both sides will respectively enter the first flow guide structure 32 or the second flow guide 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 flow guide structure 32 can be guided to the flow channel 31b, and the working fluid flowing out of the second flow guide structure 33 can be guided to the flow channel 31c. Therefore, through the design of the first flow guide structure 32, the second flow guide structure 33 and the water collection structure 31, the guiding and concentrating effect of the flow of the working fluid can be effectively improved, so that the fan blade assembly 261 can be more conducive to suction and drainage.

[0115] Figure 5A A three-dimensional schematic diagram of a liquid cooling head 3 according to an embodiment. Figure 5B This is a schematic diagram of the components of the liquid cooling head 3 of this embodiment. Figure 5A and Figure 5B As shown, the liquid cooling head 3 is substantially the same as the above-mentioned liquid cooling head 2, and the difference is that the liquid cooling head 3 is an integrated dual-cavity body, wherein the first water inlet channel 21 and the water discharge channel 23 are located on the shell 20 opposite to each other, and are located in the half part of the shell 20. The liquid cooling head 3 also includes two external channels 220, 221 and a pipeline (or pipeline) 290. The multiple external channels 220, 221 are respectively located on two opposite sides of the shell 20, and are located in the other half of the shell 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 in the system. The pipeline 290 is fixedly located in the shell 20 (that is, in the water storage chamber 201), and connects the multiple external channels 220, 221, and is airtightly isolated from the water storage chamber 201. Different from the working fluid sent out from the drainage channel 23, the external channel 220 is used to send in another source of working fluid (such as Figure 5A ), flows out from the external channel 221 through the pipeline 290.

[0116] Figure 6 An exploded schematic diagram of a housing 20 of a liquid cooling head according to an embodiment. Figure 5B and Figure 6As shown, more specifically, the baffle 35 has a groove 353. The groove 353 is formed on a side of the baffle 35 facing the shell 20. The shell 20 also includes a pipe cover 600. The pipe cover 600 covers the groove 353 to form the above-mentioned pipeline 290. The shell 20 includes two positioning grooves 211. The multiple positioning grooves 211 are located in the upper chamber (such as the water storage chamber 201) and are recessed at intervals on the inner surface 359 of the shell 20 facing the baffle 35. The pipe cover 600 also includes two positioning ribs 610. The two positioning ribs 610 are respectively integrally formed and connected to the outer surface of the pipe cover 600. When the shell 20 and the baffle 35 are combined with each other, each positioning rib 610 is respectively inserted into one of the positioning grooves 211 in a matching manner to position the pipe cover 600.

[0117] The implementation of the liquid cooling module 4 proposed by the present invention is now described with an embodiment. FIG. 7A to FIG. 9 .in 7A to 7C is a three-dimensional schematic diagram of the liquid cooling module 4; Fig.7D It is a schematic diagram of the components of the liquid cooling module 4; Fig. 8A A three-dimensional schematic diagram of a vertical cross-section of the liquid cooling module 4; Figure 8B is a schematic diagram of the flow direction of the working fluid in the liquid cooling module 4; Fig. 9 It is a schematic diagram of the arrangement of the liquid cooling module 4 and an external fan 50 .

[0118] like 7A to 7D As shown, the liquid cooling module 4 of the present invention mainly includes two parts, one of which is a tower-type liquid cooling row device 40, and the other is a liquid cooling head 2', and the tower-type liquid cooling row device 40 is vertically stacked on the liquid cooling head 2'. The liquid cooling head 2' is the liquid cooling head used in the above-mentioned embodiment. However, in order to vertically integrate with the tower-type liquid cooling row device 40, a first water inlet channel 21' and a water discharge channel 23' in the liquid cooling head 2' of this embodiment use L-shaped nozzles, and the liquid cooling module 4 also includes a front pipe 41 and a rear pipe 42, so that the liquid cooling head 2' forms an upper and lower water circulation with the tower-type liquid cooling row device 40 through the front pipe 41 and the rear pipe 42.

[0119] In detail, the tower-type liquid cooling device 40 also includes an upper box 43, a lower box 44 and a heat dissipation stack structure 450. The upper box 43 has a water inlet 431 and a water outlet 432, wherein the upper box 43 is connected to the front pipe 41 with the water inlet 431, and is connected to the rear pipe 42 with the water outlet 432. Secondly, the front pipe 41 connects the water inlet 431 with the drainage channel 23', and the rear pipe 42 connects the water outlet 432 with the first water inlet channel 21'. The heat dissipation stack 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 a plurality of heat dissipation fins stacked between the upper box 43 and the lower box 44. It is understandable that the stacking of the tower type liquid cooling row device 40 and the liquid cooling head 2' further requires the use or design of related locking components or engaging structures to enhance the strength of the combination.

[0120] exist Fig. 7A and Figure 7B It is also shown that the liquid cooling module 4 also includes a housing 400. Figure 7C and Fig.7D The figure shows the appearance and disassembly diagram of the device after the housing 400 is removed. Fig. 7A and Figure 7B As shown, the housing 400 is not shielded at both ends corresponding to the drainage channel 23' and the first water inlet channel 21', that is, when the housing 400 is assembled, the heat dissipation fin group 45 of the tower type liquid cooling device 40 will be exposed (see Fig.7D ). Secondly, the front pipe 41 and the rear pipe 42 located at the side can also provide a wind shielding function. The design of the housing 400 can not only allow the outside air to enter the air flow channel of the plurality of heat sink fin groups 45, but also reduce the impedance of the air flow to make the air flow more concentrated, thereby improving the air cooling effect of the plurality of heat sink fin groups 45.

[0121] Therefore, if Figure 7B As shown, the housing 400 may be further designed to have an inclined plate 401 that expands outwardly at a side surface corresponding to the first water inlet channel 21 ′, so as to facilitate the concentrated inflow of airflow.

[0122] like Fig. 8AAs shown, the heat dissipation stacked structure 450 also includes a plurality of fin tube layers 460. Each of the fin tube layers 460 includes a plurality of fin tubes 46, which are parallel to each other and located between any two adjacent plurality of heat dissipation fin groups 45. The plurality of fin tubes 46 and the plurality of heat dissipation fin groups 45 are arranged in such a manner that a row of heat dissipation fin groups 45 are inserted next to a row of fin tubes 46 to form multiple rows of alternating insertions. In addition, this embodiment is designed that the upper box body 43 has a plurality of first chambers 430 isolated from each other, and these first chambers 430 are arranged in sequence, wherein the first first chamber 430 is connected to the water inlet 431, and the last first chamber 430 is connected to the water outlet 432. The lower box body 44 has a plurality of second chambers 440 isolated from each other, and these second chambers 440 are arranged in sequence. The distribution range of the plurality of second chambers 440 corresponds to the distribution range of the plurality of first chambers 430. The plurality of fin tubes 46 form a fluid connection between the plurality of second chambers 440 and the plurality of first chambers 430. The plurality of fin tubes 46 are respectively connected to the plurality of first chambers 430 and the plurality of second chambers 440, so that an S-shaped path is formed in the upper case 43, the heat dissipation stack structure 450 and the lower case 44 ( Figure 8B ).

[0123] Please also see Fig. 8A and Figure 8B . When the working fluid gradually fills one of the first chambers 430, the working fluid can descend to the corresponding second chamber 440 through the corresponding one or more fin tubes 46. While the working fluid maintains a certain water pressure and water volume, the working fluid will flow from the front end to the rear end in the multiple second chambers 440, or can be squeezed and rise again through the corresponding one or more fin tubes 46 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 multiple heat sink fin groups 45. The flow direction of the working fluid in the liquid cooling module 4 can be as follows: Figure 8B As shown by the solid arrows in FIG. However, it can be understood that the actual flow situation is not limited to this, and the flow pattern may also change depending on the situation.

[0124] As can be seen from the diagram of this embodiment, the working fluid with a relatively high temperature flows out from the drainage channel 23', so the working fluid in the front pipe 41 will be hotter. Since the multiple second chambers 440 have only outlets that are fluidly connected to the multiple fin tubes 46, the working fluid flowing in the multiple first chambers 430, the fin tubes 46, and the multiple second chambers 440 will eventually be squeezed and flow to the water outlet 432, and finally flow 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 cooling head 2' for cooling. The working fluid with a relatively low temperature in the rear pipe 42 can then receive the external airflow on the air inlet side (such as Figure 8B The heat dissipation effect is improved by air cooling (as shown by the hollow arrow in the figure).

[0125] exist Fig. 9 The figure shows the appearance of the liquid cooling module 4 after removing the housing 400. Fig. 9 As shown, the liquid cooling module 4 can be arranged in combination with the external fan 50, which is located on one side of the heat dissipation stack structure 450 and fixed between the upper box 43 and the lower box 44 to output airflow toward the heat dissipation fin group 45. The best location for the external fan 50 is the exposed portion of the plurality of 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.

[0126] It should be understood that the liquid cooling head mentioned above in the present invention may be, for example, a water cooling head, and the liquid cooling module may be, for example, a water cooling module, however, the present invention is not limited thereto.

[0127] Thus, through the architecture of the above embodiments, the present invention can not only achieve good heat dissipation technical effects, but also be advantageously applied to related computer equipment, host or server equipment.

[0128] Finally, the above disclosed embodiments are not intended to limit the present invention. Any person skilled in the art may make various changes and modifications without departing from the concept and scope of the present invention, and all of them may be protected by the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A liquid cooling head, characterized in that: include: A housing, comprising a shell, a baffle, a base and a connecting opening, wherein 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, and the connecting opening is located on the baffle and connects the upper chamber and the lower chamber stacked on each other; a first water inlet channel, located at one side of the housing and connected to the upper chamber, for delivering a working fluid from a source into the upper chamber; a heat transfer structure, located in the lower chamber and sandwiched between the baffle and the base, for taking away the heat energy of the working fluid; a water collecting structure, located in the lower chamber, comprising a disc body and three flow channels, the disc body being located on an inner surface of a base of the base facing the shell, the three flow channels being formed on a disc surface of the disc body facing the shell, for receiving the working fluid passing through the heat transfer structure; a drainage channel located at one side of the housing and connected to the lower chamber; and A pump set is used to discharge the working fluid in the lower chamber to the drainage channel.

2. The liquid cooling head according to claim 1, characterized in that: Also includes: A second water inlet channel is located at the other side of the housing and connected to the upper chamber for feeding a 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 shell body opposite to each other.

3. The liquid cooling head according to claim 1, characterized in that: The first water inlet channel and the drainage channel are located on the same side of the housing; or, The first water inlet channel is located on the shell body opposite to the water discharge channel.

4. The liquid cooling head according to claim 1, characterized in that: The baffle further has at least one communication gap, which is located between the communication opening and the first water inlet channel and connects the upper chamber and the lower chamber.

5. The liquid cooling head according to claim 1, characterized in that: The heat transfer structure includes a plurality of fins arranged in parallel with each other, and the base has a first flow guide structure and a second flow guide structure. The plurality of fins, the water collecting structure, the first flow guide structure and the second flow guide structure are all formed on the inner surface of the base facing the shell. The first flow guide structure and the second flow guide structure are located on the same side of the heat transfer structure, and are used to guide the working fluid passing through the plurality of fins to the water collecting structure respectively. The water collecting structure is located between the first flow guide structure and the second flow guide structure.

6. The liquid cooling head according to claim 5, characterized in that: The three flow channels are used to respectively receive the working fluid sent from the plurality of fins, the first flow guiding structure and the second flow guiding structure.

7. The liquid cooling head according to claim 6, characterized in that: The pump assembly includes a driving assembly and a fan assembly, and the driving assembly can rotate the fan assembly in a non-contact manner; The fan blade assembly includes a fan blade and an axial rod passing through the fan blade, the water collection structure includes an axial rod fixing piece, the shell includes a baffle, the axial rod fixing piece is located at an intersection of the three flow channels, the baffle is clamped between the disc body and the fan blade, and covers the three flow channels, the baffle has an opening, and the axial rod passes through the opening and is arranged on the axial rod fixing piece; and 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 can be pivotally located in the shaft rod fixing piece and the lower groove.

8. The liquid cooling head according to claim 1, wherein: Also includes: two external channels located at two opposite sides of the housing; and A pipeline is located in the upper chamber, connected to a plurality of the external channels, and airtightly isolated from the upper chamber.

9. The liquid cooling head according to claim 8, characterized in that: The baffle has a groove, and the housing further comprises a pipe cover, which covers the groove to form the pipeline.

10. The liquid cooling head according to claim 9, characterized in that: The housing includes a positioning groove, the positioning groove is located in the upper chamber and is recessed on an inner surface of the housing facing the baffle; and The housing further comprises a positioning rib, which is integrally formed and connected to the outer surface of the tube cover and extends into and abuts against the positioning groove to position the tube cover.

11. A liquid cooling module, characterized in that: include: A liquid cooling head as claimed in claim 1; A tower type liquid cooling row device, comprising: An upper box body, comprising a water inlet, a water outlet, and a plurality of mutually isolated first chambers, one of the plurality of first chambers being connected to the water inlet, and another of the plurality of first chambers being connected to the water outlet; a lower box, vertically stacked on top of the liquid cooling head, comprising a plurality of second chambers isolated from each other; and A heat dissipation stack structure, comprising a plurality of heat dissipation fin groups and a plurality of fin tubes, wherein the plurality of heat dissipation fin groups and the plurality of fin tubes are located between the upper box and the lower box, the plurality of fin tubes are parallel to each other and located between any two adjacent plurality of heat dissipation fin groups, and the plurality of fin tubes are respectively connected to the plurality of first chambers and the plurality of second chambers, so that an S-shaped path is formed in the upper box, the heat dissipation stack structure and 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.

12. The liquid cooling module according to claim 11, characterized in that: The tower-type liquid cooling device also includes an external fan, which is located at one side of the heat dissipation stack structure and fixed between the upper box body and the lower box body to output airflow toward the heat dissipation fin group.

13. The liquid cooling module according to claim 12, characterized in that: 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.

14. The liquid cooling module according to claim 11, characterized in that: The shell has an inclined plate which expands obliquely outward on a side surface corresponding to the first water inlet channel.

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