Water cooling head

Abstract

The present invention provides a water cooling head, which includes a heat absorbing space, a heat transfer structure, a chamber and a connecting structure. The heat absorbing space is used to provide a working medium to flow therein; the heat transfer structure is arranged on a base and located in the heat absorbing space, and is used to transfer the heat energy generated by a heat source in contact with the base to the working medium; the chamber is located in a shell above the heat transfer structure and is separated from the heat absorbing space; the connecting structure is arranged in the shell to connect the chamber and the heat absorbing space.

Description

Technical Field

[0001] The invention relates to the field of heat dissipation, and in particular to a water cooling head. Background Art

[0002] In accordance with modern needs, computers and various electronic devices are developing rapidly and their performance is constantly improving. However, in the process, the heat dissipation problem brought by high-performance hardware also comes along. Generally speaking, computers and various electronic devices usually use heat dissipation components to dissipate heat, such as using thermal paste or heat sinks to attach to the electronic components to be dissipated to absorb and dissipate the heat. However, this heat dissipation method has limited effect, so a heat dissipation module using liquid cooling has been developed.

[0003] Existing heat dissipation modules using liquid cooling generally use coolant to absorb heat energy. For example, the coolant fluid is connected to the electronic components to be cooled. The heated coolant can flow to a lower temperature for heat exchange. After the heat exchange, the coolant can flow to the electronic components to be cooled to absorb heat energy, thus forming a heat dissipation cycle.

[0004] However, when the existing heat dissipation module transports the coolant to the space in the electronic components to absorb heat energy, the storage space of the coolant is often insufficient, resulting in the problem of insufficient coolant supply when the position of the water cooling head is changed or moved.

[0005] Therefore, how to provide a water cooling head that can solve the above problems is one of the issues that the industry needs to solve urgently. Summary of the invention

[0006] An object of the present invention is to provide a water cooling head which can ensure that the supply of working medium will not be interrupted.

[0007] The water cooling head provided by the present invention comprises: a shell; a base, which is combined with the shell to form an action space between the shell and the base for a working medium to flow therein; a chamber, which is formed in the shell and separated from the action space and connected to the action space through a connecting structure; a heat transfer structure, which is arranged on the inner side of the base and is used to transfer the heat energy generated by the heat source contacting the outer side of the base to the working medium in the action space; and a pump, which is arranged above a part of the heat transfer structure and is used to separate the action space into a heat absorption space and a drainage space, so as to drive the working medium to flow from the chamber to the heat absorption space and the drainage space via the connecting structure.

[0008] The aforementioned water cooling head also includes: a first water inlet channel, which is connected to the chamber to allow the working medium to flow into the chamber; a second water inlet channel, which is connected to the connecting structure to allow the working medium to flow into the heat absorption space; and a drainage channel, which is connected to the drainage space to discharge the working medium from the drainage space.

[0009] In the aforementioned water cooling head, the first water inlet channel and the drainage channel are located on the same side of the shell, while the second water inlet channel and the drainage channel are located on different sides of the shell.

[0010] In the aforementioned water cooling head, the communication structure is arranged between the chamber in the shell and the second water inlet channel.

[0011] In the aforementioned water cooling head, the housing has a recess on the side combined with the base, and the height of the heat transfer structure below the pump is lower than the height of the heat transfer structure below the recess.

[0012] In the aforementioned water cooling head, the chamber is exposed at a side opposite to a side where the shell and the base are combined.

[0013] In the aforementioned water cooling head, the communication structure is a channel formed in the shell and communicating with one side of the chamber and the periphery of the heat transfer structure.

[0014] In the aforementioned water cooling head, the connecting structure is a guide groove on the shell that passes through the chamber to the action space.

[0015] In the aforementioned water cooling head, the guide groove is located above a portion of the heat transfer structure.

[0016] In the aforementioned water cooling head, the heat transfer structure is a plurality of fins, and the extension direction of the guide groove is different from the extension direction of the plurality of fins.

[0017] In the aforementioned water cooling head, a confluence area is formed by a depression on the inner side of the base around the heat transfer structure to guide the working medium to the bottom of the pump.

[0018] Another object of the present invention is to provide a water-cooling head, comprising: a heat-absorbing space for a working medium to flow therein; a heat transfer structure, which is arranged on a base and located in the heat-absorbing space, and is used to transfer heat energy generated by a heat source in contact with the base to the working medium; a chamber, which is located in a shell above the heat transfer structure and is separated from the heat-absorbing space; and a connecting structure, which is arranged in the shell to connect the chamber and the heat-absorbing space.

[0019] The aforementioned water cooling head further includes: at least one water inlet channel for allowing the working medium to flow into the chamber; and a drainage channel for discharging the working medium from the heat absorbing space.

[0020] In the aforementioned water cooling head, the water inlet channel and the water discharge channel are located on the same side or different sides of the shell.

[0021] In the aforementioned water cooling head, the communication structure is arranged between the chamber in the shell and the water inlet channel.

[0022] In the aforementioned water cooling head, the shell has a recess on the side facing the heat transfer structure, and the height of the heat transfer structure located below the recess is higher than the height of the heat transfer structure not located below the recess.

[0023] In the aforementioned water cooling head, the chamber is exposed at a side of the shell opposite to a side of the shell facing the heat transfer structure.

[0024] In the aforementioned water cooling head, the communication structure is a channel formed in the shell and communicating with one side of the chamber and the periphery of the heat transfer structure.

[0025] In the aforementioned water cooling head, the connecting structure is a guide groove on the shell that passes through the chamber to the heat absorption space.

[0026] In the aforementioned water cooling head, the guide groove is located above a portion of the heat transfer structure.

[0027] In the aforementioned water cooling head, the heat transfer structure is a plurality of fins, and the extension direction of the guide groove is different from the extension direction of the plurality of fins.

[0028] In the aforementioned water cooling head, a confluence area is formed by a depression on the base around the heat transfer structure.

[0029] The beneficial effect of the present invention is that the working medium is effectively temporarily stored in the shell to ensure that the supply of the working medium will not be interrupted. In addition, the design of the connecting structure in the water cooling head of the present invention that is connected to the chamber and the working space can more effectively guide the working medium temporarily stored in the chamber to the heat transfer structure for adsorption of heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1A and Figure 1B Schematic diagrams of the water cooling head of the present invention at different viewing angles.

[0031] Figure 1C It is a schematic diagram of the explosion of the water cooling head of the present invention.

[0032] FIG. 2A to FIG. 2D Schematic diagrams of the housing and the pump in the water cooling head of the present invention at different viewing angles.

[0033] Figure 3A for Figure 1A Schematic cross-sectional view along section line 3A-3A.

[0034] Figure 3B for Figure 1ASchematic cross-sectional view along section line 3B-3B.

[0035] Figure 3C for Figure 1A Schematic diagram of the cross section along the 3C-3C section line.

[0036] Figure 3D for Figure 1A Schematic diagram of the cross section along the 3D-3D section line.

[0037] Figure 4A It is a three-dimensional schematic diagram of the pump and the base in the water cooling head of the present invention.

[0038] Figure 4B and Figure 4C Schematic diagrams of the pump in the water cooling head of the present invention at different viewing angles.

[0039] Figure 5A and Figure 5B This is a schematic diagram of the water cooling head of the present invention and other water cooling heads forming a loop together.

[0040] Fig. 6A FIG. 4 is a perspective schematic diagram of another embodiment of a water cooling head of the present invention.

[0041] Figure 6B for Fig. 6A A three-dimensional schematic diagram of the general after the shell is disassembled.

[0042] Figure 6C and Fig.6D for Figure 6B Three-dimensional schematic diagrams of the exposed chamber after the upper cover is disassembled from different angles.

[0043] Fig. 6E FIG. 1 is an exploded schematic diagram of another embodiment of a water cooling head of the present invention.

[0044] Fig. 7A and Figure 7B FIG. 1 is a three-dimensional schematic diagram of a housing and a pump before and after assembly in another embodiment of a water-cooling head of the present invention.

[0045] Fig. 8A for Fig. 6A A schematic cross-sectional view along section line 8A-8A.

[0046] Figure 8B for Fig. 6A Schematic cross-sectional view along section line 8B-8B.

[0047] Figure 8C for Fig. 6A Schematic diagram of the cross section along the 8C-8C section line.

[0048] Fig.9A and Fig. 9BFIG. 1 is a schematic diagram of a process in which a working medium flows between the shell and the base in another embodiment of a water-cooling head of the present invention.

[0049] FIG. 9C to FIG. 9E Schematic diagram of different embodiments of the guide groove in another embodiment of the water cooling head of the present invention.

[0050] The reference numerals are as follows:

[0051] 1. 1' water cooling head

[0052] 2 Housing

[0053] 21 Electromechanical Chamber

[0054] 22, 22' First water inlet channel

[0055] 23, 23' Second water inlet channel

[0056] 24 Chamber

[0057] 241 Diversion channel

[0058] 25, 25' drainage channel

[0059] 26 channels

[0060] 27 recess

[0061] 28, 29 grooves

[0062] 3 Upper cover

[0063] 4 Base

[0064] 41 Heat absorbing surface

[0065] 42 Heat transfer structure

[0066] 43 Inside

[0067] 44 Confluence Area

[0068] 45 Grooves

[0069] 5 Pumps

[0070] 51 Circuit Board

[0071] 52 First magnetic element

[0072] 53 Fan Blade

[0073] 531 Top wall

[0074] 532 Chassis

[0075] 533 Partition Wall

[0076] 534 Bushing

[0077] 535 Shaft Rod

[0078] 536 Hollow

[0079] 537 Ribs

[0080] 538 Drainage cavity

[0081] 539 Fixings

[0082] 54 Second magnetic element

[0083] 55 Wire

[0084] 6 Action Space

[0085] 61 Heat absorption space

[0086] 62 Drainage Space

[0087] 71, 72, 73 pipelines

[0088] 74 Cap

[0089] 8 Cover

[0090] 9A, 9B, 9C Connectors

[0091] θ angle. DETAILED DESCRIPTION

[0092] The following describes the implementation of the present invention through specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification, and can also implement or apply it through other different specific embodiments.

[0093] The water cooling head provided by the present invention can be installed in electronic devices such as a computer host or a server. The water cooling head can be filled with a working medium (such as a coolant). The working medium can absorb the heat energy generated by a heat source (such as a chip or an electronic component such as a memory). The heated working medium can be transmitted to a condensing device for cooling, and the cooled working medium can be transmitted back to the water cooling head for the next heat absorption and circulation flow.

[0094] Please also see Figures 1A to 1C , FIG. 2A to FIG. 2DThe water cooling head 1 of the present invention may include a shell 2, an upper cover 3, a base 4 and a pump 5. The shell 2 may be used as the main structural member of the water cooling head 1, and is combined with the upper cover 3 at the top and the base 4 at the bottom. The first water inlet channel 22, the second water inlet channel 23 and the drainage channel 25 may be formed on the side of the shell 2. The combination of the shell 2 and the various components may form fixing structures such as screw holes, studs or buckles at different parts of the shell 2, so as to facilitate the combination of the various components by locking during assembly, but the present invention is not limited to this combination method.

[0095] In this embodiment, the shell 2 can structurally define different chambers and channels, including an electromechanical chamber 21, a first water inlet channel 22, a second water inlet channel 23, a chamber 24 and a drainage channel 25, wherein the electromechanical chamber 21 opens on the top side of the shell 2 and is independent of the flow path of the working medium in the water-cooled head 1, thereby being able to protect the energized components disposed in the electromechanical chamber 21 and avoid short circuits caused by the intervention of the working medium.

[0096] In this embodiment, the pump 5 may include a circuit board 51, a first magnetic element 52, a fan blade 53 and a second magnetic element 54, wherein the circuit board 51 and the first magnetic element 52 may be disposed in the electromechanical chamber 21, and the fan blade 53 and the second magnetic element 54 are disposed on the other side of the electromechanical chamber 21 (for example, in the path through which the working medium flows, such as Figure 2C The circuit board 51 is used to provide the power required for the operation of the pump 5, for example, by using a wired connection method of an electric wire 55 (such as FIG. 6A to FIG. 6D ), or by other wireless connection methods such as electromagnetic induction to connect a power source (not shown). In this embodiment, the circuit board 51 and the first magnetic element 52 are separated from the fan blades 53 and the second magnetic element 54 by the housing 2, but the first magnetic element 52 and the second magnetic element 54 are still coaxially arranged. In one embodiment, the first magnetic element 52 and the second magnetic element 54 can be selected from magnets or other materials that can be driven or attracted by a magnetic field. In addition, the second magnetic element 54 is combined with the fan blades 53. When the pump 5 is powered on, under the joint action of the circuit board 51, the first magnetic element 52 and the second magnetic element 54, the fan blades 53 axially connected to the second magnetic element 54 are driven to rotate by the second magnetic element 54, so that the rotation of the fan blades 53 leads the flow of the working medium.

[0097] In this embodiment, the base 4 is used to absorb heat energy, and its material can be selected from metal or other materials with good thermal conductivity. The base 4 can be a one-piece (integrally formed) structure, or a composite structure composed of multiple layers or multiple elements, and the present invention is not limited to this. The outer side of the base 4 (the side away from the shell 2) has a heat absorption surface 41, and the inner side 43 of the base 4 (the side facing the shell 2) is formed with (or can be provided with) a heat transfer structure 42, wherein the heat absorption surface 41 can be in direct or indirect contact with the heat source, so that the heat absorption surface 41 can absorb the heat energy generated by the heat source and transfer the heat energy to the heat transfer structure 42, and the heat transfer structure 42 will then transfer the heat energy to the working medium through contact with the working medium.

[0098] In one embodiment, the heat transfer structure 42 of the base 4 can be a skived fin, or other columnar, sheet-shaped, or even irregularly shaped fins, as long as it can increase the contact area with the working medium and allow heat energy to be transferred to the working medium faster. The present invention does not limit the specific structure of the heat transfer structure 42.

[0099] Please refer to Figure 3C and Figure 3D When the base 4 is combined with the shell 2, the shell 2 and the base 4 can jointly define an action space 6, and the action space 6 can be filled with a working medium and allow the working medium to flow. In one embodiment, the action space 6 can be separated into a heat absorption space 61 and a drainage space 62 by the fan blades 53 of the pump 5, without relying on other partition walls or compartments, so that the internal structure of the water cooling head 1 can be simplified. In this embodiment, the first water inlet channel 22 and the second water inlet channel 23 of the shell 2 are connected to the heat absorption space 61 to allow the cooled working medium to flow into the heat absorption space 61, so that the working medium absorbs the heat energy transferred by the heat transfer structure 42. The fan blades 53 can directly absorb the working medium from the heat absorption space 61 to the drainage space 62. In addition, the drainage channel 25 is connected to the drainage space 62, so the heated working medium can be transferred to the outside of the water cooling head 1 for cooling. In addition, the first water inlet channel 22, the second water inlet channel 23 and the drainage channel 25 can be respectively extended outward or connected as shown in the figure. FIG. 6A to FIG. 6D The connectors 9A, 9B, 9C shown in the figure are connected to the connectors 9A, 9B, 9C through the connectors 9A, 9B, 9C. Figure 5A and Figure 5B The pipes 71, 72, 73 are connected to the condensing device (such as a water cooling radiator, a fan, etc.). The joints 9A, 9B, 9C can be connected to the shell 2 vertically or horizontally, or be arranged in an elbow to meet different space configuration requirements inside the water cooling head 1, but the present invention is not limited thereto.

[0100] The overall structure of the fan blade 53 of the pump 5 in the water cooling head 1 of the present invention is further described below. Figure 4B and Figure 4C . As mentioned above, the working space 6 in the water-cooled head 1 of the present invention is separated into a heat absorption space 61 and a drainage space 62 by the fan blades 53 of the pump 5. Therefore, the fan blades 53 themselves have the dual functions of absorbing the working medium and discharging the working medium. In order to achieve the above functions, the fan blades 53 are arranged in the working space 6 and adjacent to the drainage channel 25, so as to absorb the working medium directly from the heat absorption space 61 to the drainage space 62, and then discharge the working medium from the water-cooled head 1 through the drainage channel 25. The fan blades 53 include a top wall 531, a bottom plate 532, a partition wall 533, a shaft sleeve 534 and a shaft rod 535, and a hollow portion 536 is formed between the bottom plate 532 and the shaft sleeve 534, and the bottom plate 532 and the shaft sleeve 534 can be connected by at least one rib 537 in the hollow portion 536. The chassis 532 is a structure in the fan blade 53 that mainly divides the working space 6 into a heat absorption space 61 and a drainage space 62, and the heat absorption space 61 and the drainage space 62 are fluidly coupled through the hollow portion 536, that is, the working medium can enter the drainage space 62 from the heat absorption space 61 through the hollow portion 536. The top wall 531 and the chassis 532 are arranged at intervals, and a plurality of partition walls 533 are connected between the two, so that a plurality of drainage chambers 538 can be separated. When the working medium is transferred upward from the heat absorption space 61 through the hollow portion 536 to the drainage space 62, the working medium will first touch the top wall 531 and then turn to move to each drainage chamber 538, and then due to the action of centrifugal force, the working medium in each drainage chamber 538 is sequentially thrown into the drainage channel 25 and discharged from the water cooling head 1. The top wall 531 of the fan blade 53 not only has the guiding function of changing the flow direction, but also can prevent the partition wall 533 from directly touching the housing 2, thereby reducing the chance of wear.

[0101] In the present embodiment, the fan blade 53 is driven by the electromagnetic induction between the first magnetic element 52 and the second magnetic element 54, and is not driven by the shaft rod 535. Therefore, there is no linkage between the fan blade 53 and the shaft rod 535. However, in order to maintain the durability and stability of the fan blade 53, so that it does not deviate from the axis or touch the shell 2 to cause wear during rotation, a hollow sleeve 534 may be provided inside the fan blade 53, on which the shaft rod 535 can be mounted. In addition, in order to fix the shaft rod 535, one end of the shaft rod 535 can be accommodated in the groove 28 at the top of the working space 6 (that is, the inner side of the shell 2), and the other end can be fixed by a fixing member 539, for example, the fixing member 539 is provided with a blind hole or a through hole for accommodating the shaft rod 535. In addition, the fixing member 539 can be received and fixed in a groove 29 on the bottom surface of the shell 2 (such as Fig. 7A ), or the fixing member 539 is directly installed in the groove 45 of the base 4 (as shown in Figure 1CIn one embodiment, when the shaft rod 535 is installed in the action space 6, it is preferably to extend or penetrate into the heat absorption space 61 together with the fixing member 539, which will make the fan blade 53 more stable when rotating, but the present invention is not limited thereto.

[0102] In one embodiment, considering the material of the fan blade 53 itself, if necessary, a shaft tube (not shown) can be sleeved and fixed in the shaft sleeve 534, and the shaft tube is coaxially arranged with the shaft sleeve 534 and the shaft rod 535, and is located between the shaft sleeve 534 and the shaft rod 535. The material of the shaft tube can be selected to be anti-wear or relatively wear-resistant, so as to reduce the wear of the fan blade 53 and the shaft rod 535 when they rotate relative to each other, and extend the life of the fan blade 53.

[0103] In order to ensure that the supply of the working medium in the water-cooling head 1 is not interrupted, a chamber 24 is formed in the shell 2. The chamber 24 is communicated with the first water inlet channel 22 so that the working medium can flow into the chamber 24 through the first water inlet channel 22. The chamber 24 is also communicated with the second water inlet channel 23 so that the working medium can flow into the chamber 24 through the second water inlet channel 23. In this embodiment, the first water inlet channel 22 and the drainage channel 25 can be arranged on the same side of the shell 2 (the side adjacent to the pump 5), and the second water inlet channel 23 can be arranged on the other side of the shell 2 different from the first water inlet channel 22 and the drainage channel 25 (the side away from the pump 5), that is, the first water inlet channel 22 and the second water inlet channel 23 are arranged on opposite sides of the chamber 24, but the present invention is not limited thereto. The first water inlet channel 22 and the second water inlet channel 23 can also be arranged on adjacent sides or the same side of the chamber 24 according to the design requirements of the product structure to increase the installation flexibility of the user.

[0104] In this embodiment, the chamber 24 is basically physically separated from the action space 6 (i.e., the chamber 24 and the action space 6 are independently separated by the housing 2), but the chamber 24 can be connected to the action space through a connecting structure in the housing 2, and this connecting structure can be, for example, a channel 26 formed in the housing 2. Specifically, the channel 26 is formed on one side of the chamber 24 and is located between the chamber 24 and the second water inlet channel 23, so the working medium will first pass through the channel 26 after flowing into the second water inlet channel 23, and then flow into the chamber 24.

[0105] like Figure 2C and Figure 2D As shown, there is a recess 27 on the side where the housing 2 and the base 4 are combined. After the housing 2 and the base 4 are combined, the recess 27 can define a heat absorption space 61 in the action space 6 together with the base 4, and the recess 27 is also connected to the channel 26. When the working medium flows in from the second water inlet channel 23, it can first pass through the channel 26 and then directly flow into the heat absorption space 61.

[0106] In one embodiment, the chamber 24 is exposed on the side opposite to the side where the housing 2 and the base 4 are combined. For example, the exposed direction of the chamber 24 can be on the same side as the opening of the electromechanical chamber 21, and can be sealed by the upper cover 3. The upper cover 3 can be fixed to the screw hole of the housing 2 by screws, but can also be fixed by heat fixation or other bonding means, and the present invention is not limited thereto. In another embodiment, the upper cover 3 can be made of a transparent or light-transmitting material to help the user observe the supply of the working medium.

[0107] After the housing 2 and the base 4 are assembled, the channel 26 is located around the heat transfer structure 42, the recess 27 can accommodate the heat transfer structure 42, and the pump 5 is located above a portion of the heat transfer structure 42 (such as Figure 4A As shown in FIG. 1 , the electromechanical chamber 21 for installing the pump 5 and the recess 27 and chamber 24 are located at different horizontal positions relative to the housing 2, so that they do not overlap in the vertical direction, which can effectively reduce the height of the water cooling head 1 and provide a thin design. Figure 1C , Figure 3B and Figure 4A As shown, the heights of the fins of the heat transfer structure 42 may be different. For example, the height of the fins of the heat transfer structure 42 located below the pump 5 may be lower than the height of the fins of the heat transfer structure 42 located below the recess 27. This is to reduce the resistance of the working medium when it leaves the heat transfer structure 42. In other embodiments, the heights of the fins of the heat transfer structure 42 may also be the same, but the present invention is not limited thereto.

[0108] See also FIG. 3A to FIG. 3D , the working medium entering the water-cooled head 1 can flow from the first water inlet channel 22 into the chamber 24 along the direction of arrow A, or flow from the second water inlet channel 23 into the chamber 24 or the channel 26 along the direction of arrow B. Then, the working medium in the chamber 24 or the working medium flowing in from the second water inlet channel 23 can flow into the channel 26, turn in the channel 26, and flow into the heat absorption space 61 along the direction of arrow C. After that, the working medium passes through the inside of the heat transfer structure 42 along the direction of arrow D, and then flows to the bottom of the pump 5 after absorbing the heat energy absorbed by the heat transfer structure 42. Finally, the working medium is sucked from the heat absorption space 61 to the drainage space 62 by the fan blades 53 along the direction of arrow E, and is discharged from the drainage channel 25 connected to the drainage space 62 along the direction of arrow F to the outside of the water-cooled head 1 for further cooling.

[0109] When the water cooling head 1 of the present invention is used, since the first water inlet channel 22 and the second water inlet channel 23 are located at different sides of the chamber 24, multiple water cooling heads 1, 1' can be connected in series to enhance the cooling efficiency or dissipate heat from multiple heat sources at the same time. Figure 5AAs shown, the pipeline 71 is a supply pipeline for the working medium, which is connected to the second water inlet channel 23 of the water cooling head 1, and the working medium, after absorbing the heat energy inside the water cooling head 1, is discharged from the drainage channel 25 of the water cooling head 1 and enters the pipeline 72. The pipeline 72 can be further connected to the first water inlet channel 22' of another water cooling head 1' to allow the working medium to enter the water cooling head 1'. After the working medium absorbs the heat energy inside the water cooling head 1', it can be discharged from the drainage channel 25' of the water cooling head 1', and will leave the water cooling head 1' through the pipeline 73 to the condensing device (not shown). In the above embodiment, the second water inlet channel 23' of the water cooling head 1' can be closed with a cover 74, so that the water cooling head 1' can be set near the corner of the casing or close to the side wall of the casing without being restricted by space.

[0110] In another embodiment, the water cooling heads 1, 1' may also be used as Figure 5B The pipe 71 is a supply pipe for the working medium, which is connected to the second water inlet channel 23 of the water cooling head 1. After the working medium absorbs the heat energy inside the water cooling head 1, it is discharged from the drainage channel 25 of the water cooling head 1 and enters the pipe 72. The pipe 72 can be further connected to the second water inlet channel 23' of another water cooling head 1' to allow the working medium to enter the water cooling head 1'. After the working medium absorbs the heat energy inside the water cooling head 1', it can be discharged from the drainage channel 25' of the water cooling head 1' and leave the water cooling head 1' through the pipe 73 to the condensing device (not shown). In the above embodiment, the first water inlet channel of the water cooling heads 1, 1' can be closed with a cover 74. This embodiment allows the pipes 71 and 73 to not pass through the top of the water cooling heads 1, 1', which is suitable for a flatter space.

[0111] See also 6A to 7B , which is another embodiment of the water cooling head 1 of the present invention. The difference between this embodiment and the previous embodiment lies in the design of the connecting structure and the heat transfer structure in the shell, and the other structural features are roughly the same. Only the differences are described below, and the similarities are not repeated here.

[0112] In the present embodiment, the connecting structure is a guide groove 241 formed in the shell 2 and passing through the chamber 24 and the working space 6. Specifically, the guide groove 241 is an opening formed on the bottom of the chamber 24 (or the recess 27 of the shell 2) and is located above a portion of the heat transfer structure 42. In one embodiment, the extension direction of the guide groove 241 is different from the extension direction of the fins of the heat transfer structure 42. For example, the extension direction of the guide groove 241 may be perpendicular to the extension direction of the fins of the heat transfer structure 42, but the present invention is not limited thereto. The extension direction of the guide groove 241 may also be arranged at an angle (for example, 30 degrees, 45 degrees, 60 degrees, etc.) to the extension direction of the fins of the heat transfer structure 42. Fig. 9CAs shown, the two ends of the guide groove 241 can be respectively located in the inflow direction of the working medium along the arrows A and B, so that the extension direction of the guide groove 241 and the extension direction of the fins of the heat transfer structure 42 are sandwiched by an angle θ, and the angle θ can vary according to the design requirements of the product structure, and the present invention does not specifically limit the value of the angle θ. In addition, the positions of the two ends of the guide groove 241 can also vary according to the design requirements of the product structure, and the present invention does not specifically limit the positions of the two ends of the guide groove 241.

[0113] In one embodiment, the width of the guide groove 241 at one end adjacent to the first water inlet channel 22 may be greater than (or less than) the width of the end adjacent to the second water inlet channel 23, or the width of the guide groove 241 at one end may gradually decrease to the width of the other end. The present invention does not limit the position of the wider end of the guide groove 241. Fig.9A As shown, the wider end of the guide groove 241 may be adjacent to the first water inlet channel 22, or may be as shown in FIG. Fig.9D As shown, the wider end of the guide groove 241 may be adjacent to the second water inlet channel 23. In another embodiment, as Fig.9E As shown, the guide grooves 241 may have uniform width.

[0114] In this embodiment, the chamber 24 can be sealed by the upper cover 3 and further combined with an outer cover 8 to strengthen the overall structure. The outer cover 8 can be combined with the housing 2 by screw holes, studs, hooks, slots or buckles, and the outer cover 8 can also be transparent or light-transmitting material to facilitate the user to observe the supply or flow of the working medium.

[0115] Please read further FIG. 8A to FIG. 8C , FIG. 9A to FIG. 9B , the working medium entering the water-cooled head 1 can flow into the chamber 24 from the first water inlet channel 22 along the direction of arrow A, or flow into the chamber 24 from the second water inlet channel 23 along the direction of arrow B. Since the bottom of the chamber 24 has a guide groove 241, the working medium in the chamber 24 will turn to enter the heat absorption space 61 along the direction of arrow C, and pass through the inside of the heat transfer structure 42 along the direction of arrow D and take away the heat energy absorbed by the heat transfer structure 42. Since the extension direction of the guide groove 241 is different from the extension direction of the fins of the heat transfer structure 42, a confluence area 44 can be formed on the inner side 43 of the base 4 around the heat transfer structure 42. The confluence area 44 can gather and turn the working medium (such as along the direction of arrow D), and gather it to the bottom of the fan blade 53 of the pump 5 along the direction of arrow E. Then, the working medium is attracted by the fan blade 53 and moves upward from the heat absorption space 61 to the drainage space 62 along the direction of arrow F. Finally, the working medium is discharged to the outside of the water-cooled head 1 in the direction of arrow G through the drainage channel 25 communicating with the drainage space 62 to be cooled.

[0116] Through the design of the chamber in the water-cooled head of the present invention, the working medium can be effectively temporarily stored in the shell to ensure that the supply of the working medium will not be interrupted. In addition, the design of the connecting structure in the water-cooled head of the present invention that is connected to the chamber and the working space can more effectively guide the working medium temporarily stored in the chamber to the heat transfer structure for adsorption of heat energy. In addition, since the electromechanical chamber, chamber and recess of the present invention are respectively located at different horizontal positions of the shell, it can also have the effect of a thin design of the water-cooled head under the chamber where the working medium is temporarily stored.

[0117] The above embodiments are only used to illustrate the technical principles, features and effects of the present invention, and are not intended to limit the scope of the present invention. Those skilled in the art can modify and change the above embodiments without violating the spirit and scope of the present invention. However, any equivalent modifications and changes made by using the teachings of the present invention should still be covered by the above claims. The scope of protection of the present invention should be as listed in the claims.

Claims

1. A water cooling head, It is characterized in that include: case; A base, which is combined with the shell to form an action space between the shell and the base for the working medium to flow therein; a chamber formed in the housing and separated from the action space and connected to the action space through a communication structure; a heat transfer structure disposed on the inner side of the base for transferring heat energy generated by a heat source in contact with the outer side of the base to the working medium in the action space; and A pump is disposed above a portion of the heat transfer structure and is located at different horizontal positions relative to the shell as the pump and the chamber, so that the pump and the chamber do not overlap in the vertical direction, and is used to separate the action space into a heat absorption space and a drainage space, so as to drive the working medium to flow from the chamber to the heat absorption space and the drainage space through the connecting structure.

2. The water cooling head according to claim 1, It is characterized in that The water cooling head also includes: a first water inlet channel, which is in communication with the chamber and is used for allowing the working medium to flow into the chamber; A second water inlet channel, which is in communication with the communication structure, and is used to allow the working medium to flow into the heat absorption space; and A drainage channel is communicated with the drainage space and is used to discharge the working medium from the drainage space.

3. The water cooling head according to claim 2, It is characterized in that The first water inlet channel and the drainage channel are located on the same side of the shell, while the second water inlet channel and the drainage channel are located on different sides of the shell.

4. The water cooling head according to claim 2, It is characterized in that The communication structure is arranged between the chamber in the shell and the second water inlet channel.

5. The water cooling head according to claim 1, It is characterized in that The housing has a recessed portion on a side combined with the base, and a height of the heat transfer structure below the pump is lower than a height of the heat transfer structure below the recessed portion.

6. The water cooling head according to claim 1, It is characterized in that The cavity is exposed at a side opposite to a side where the shell and the base are combined.

7. The water cooling head according to claim 1, It is characterized in that The communication structure is a channel formed in the shell and communicating with one side of the chamber and the periphery of the heat transfer structure.

8. The water cooling head according to claim 1, It is characterized in that The communication structure is a guide groove on the shell that passes through the chamber to the action space.

9. The water cooling head according to claim 8, It is characterized in that The guide groove is located above a portion of the heat transfer structure.

10. The water cooling head according to claim 9, It is characterized in that The heat transfer structure is a plurality of fins, and the extension direction of the guide groove is different from the extension direction of the plurality of fins.

11. The water cooling head according to claim 8, It is characterized in that A confluence area is formed by a depression on the inner side of the base around the heat transfer structure to guide the working medium to the bottom of the pump.

12. A water cooling head, It is characterized in that include: A heat absorbing space, in which the working medium flows; A heat transfer structure is disposed on the base and located in the heat absorption space, and is used to transfer heat energy generated by a heat source in contact with the base to the working medium; a chamber, which is located in the shell above the heat transfer structure and is separated from the heat absorbing space; A communication structure, which is arranged in the shell to communicate the chamber and the heat absorption space; as well as The pump is arranged above a portion of the heat transfer structure and is located at different horizontal positions relative to the housing from the chamber, so that the pump and the chamber will not overlap in the vertical direction.

13. The water cooling head according to claim 12, It is characterized in that The water cooling head also includes: at least one water inlet channel for allowing the working medium to flow into the chamber; and The drainage channel is used to discharge the working medium from the heat absorbing space.

14. The water cooling head according to claim 13, It is characterized in that The water inlet channel and the water discharge channel are located on the same side or different sides of the shell.

15. The water cooling head according to claim 13, It is characterized in that The communication structure is arranged between the chamber in the shell and the water inlet channel.

16. The water cooling head according to claim 12, It is characterized in that The housing has a recessed portion on a side facing the heat transfer structure, and the heat transfer structure located below the recessed portion has a height higher than the heat transfer structure not located below the recessed portion.

17. The water cooling head according to claim 12, It is characterized in that The cavity is exposed at a side of the housing opposite to a side of the housing facing the heat transfer structure.

18. The water cooling head according to claim 12, It is characterized in that The communication structure is a channel formed in the shell and communicating with one side of the chamber and the periphery of the heat transfer structure.

19. The water cooling head according to claim 12, It is characterized in that The connecting structure is a guide groove on the shell that passes through the chamber to the heat absorption space.

20. The water cooling head according to claim 19, It is characterized in that The guide groove is located above a portion of the heat transfer structure.

21. The water cooling head according to claim 20, It is characterized in that The heat transfer structure is a plurality of fins, and the extension direction of the guide groove is different from the extension direction of the plurality of fins.

22. The water cooling head according to claim 12, It is characterized in that A confluence area is formed by a depression on the base around the heat transfer structure.

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