A liquid cooling heatsink's cold head

Abstract

This utility model discloses a liquid cooling radiator cold head, including a cold head body and a heat absorption block. The heat absorption block is disposed at the lower end of the cold head body. The outer circumferential surface of the cold head body also has several recesses. The cold head further includes a mounting bracket. The first end of the mounting bracket is rotatably disposed within a recess through a shaft, and the second end is disposed outside the recess; its position is switchable. This utility model adapts to the installation requirements of different CPU sizes by swinging the mounting bracket, simplifying the operation steps for users when upgrading or replacing hardware, avoiding the inconvenience caused by lost parts, and occupying little installation space. The mounting bracket also has high versatility.

Description

Technical Field

[0001] This utility model relates to the field of hardware heat dissipation technology, and in particular to a cold head of a liquid cooling radiator. Background Technology

[0002] Computer CPUs generate a significant amount of heat during operation, and currently, there are two main cooling methods: air cooling and liquid cooling (also known as water cooling). Liquid cooling, due to the inherent advantages of its cooling medium, offers better heat dissipation and allows for more diverse structural configurations. For example, liquid coolers (also known as water cooling devices) can be either separate units or integrated units. Both separate and integrated liquid coolers feature a liquid cooling head structure that contacts the CPU for heat dissipation.

[0003] Existing liquid cooling radiators are usually purchased according to the needs of consumers and then installed on the motherboard (also known as PCB) of the computer using mounting brackets. The mounting brackets are an important component of the liquid cooling radiator used to fix the cold head (also known as the water cooling head or liquid cooling head). Their main function is to firmly install the cold head on the CPU surface and ensure that the contact surface is evenly fitted in order to optimize heat conduction efficiency.

[0004] Due to the differences in specifications among different CPU models from different manufacturers, CPU mounting slots have varying mounting positions, hole spacing, and structures. Currently, the market primarily offers multiple mounting bracket structures for different manufacturers' CPUs, with multiple sets of mounting brackets provided to meet different specifications, allowing consumers to choose the appropriate one during installation, such as the solution mentioned in reference 5. Furthermore, industry professionals are considering improving the universality of mounting brackets, attempting to find a unified mounting bracket structure, such as the solution mentioned in reference 3. The following are existing technologies that can be referenced:

[0005] Reference 1: CN222706832U

[0006] Reference 2: CN222704974U

[0007] Reference 3: CN210466314U

[0008] Reference 4: CN201585229U

[0009] Reference 5: CN118312015A

[0010] Document 1, Chinese Utility Model Patent CN222706832U (publication date April 1, 2025), discloses a water cooling head assembly and a water cooling radiator, including: a water pump assembly and a water cooling head assembly. The water pump assembly is disposed on the water cooling head assembly. The water cooling head assembly includes a water cooling head housing, a connecting plate, and several heat sinks. The water cooling head housing is connected to and sealed to the pump body. The water cooling head housing and the connecting plate form a liquid storage cavity, which is used to communicate with the water cooling radiator assembly.

[0011] Document 2, Chinese Utility Model Patent CN222704974U (publication date April 1, 2025), discloses an integrated water-cooled radiator, including a water block, a radiator, and inlet and outlet pipes connecting the water block and the radiator. A heatsink is disposed below the water block. It places the CPU on the heatsink, and the heat exchange operation is achieved through the cooperation of the inlet pipe, the heat dissipation structure, and the outlet pipe.

[0012] Document 3, Chinese Utility Model Patent CN210466314U (publication date May 5, 2020), discloses an easy-to-install and easy-to-disassemble universal computer water-cooling radiator, including a radiator body. The bottom of the radiator body is fixedly installed with an mounting plate. By setting the radiator body, heat sink and metal telescopic ring, it is compatible with all internal heat dissipation structures of computers and is easy to install. It is equipped with a snap-fit ​​structure for Intel and AMD motherboards, and the center fixing hole distance can be extended.

[0013] Reference 4, Chinese Utility Model Patent CN201585229U (publication date September 15, 2010), discloses a heatsink backplate, including a backplate body, multiple positioning pads, and multiple connecting parts that combine the backplate body and the positioning pads. The elongated through-holes in the backplate body can correspond to the mounting holes of various motherboards, and the positioning pads restrict the position of the connecting parts, thus making it suitable for CPUs and motherboards of different specifications.

[0014] Document 5, Chinese invention patent application CN118312015A (publication date July 9, 2014), discloses a fixing device for a variable heat sink, including a cold head body and a connecting body. The cold head body includes a cold head heat exchange section for contacting and connecting with a heat-generating element. The connecting body includes a recess, is disposed on the cold head body, and the cold head heat exchange section protrudes from the recess. The connecting body includes multiple connecting bolts capable of translating within a certain position range, and the multiple connecting bolts are used for fixed connection with the heat-generating element. This fixing device for the variable heat sink adopts an integrated connecting body, and the connecting bolts of the connecting body have multiple installation positions, which can be used for connection and installation on multiple platforms, avoiding the problem of replacing fasteners. Utility Model Content

[0015] This utility model provides a cold head for a liquid-cooled radiator, including a cold head body and a heat-absorbing block. The heat-absorbing block is disposed at the lower end of the cold head body. The cold head body and the heat-absorbing block enclose a liquid storage cavity. The cold head body is provided with a liquid inlet and a liquid outlet, which are respectively connected to the liquid storage cavity. The upper end of the heat-absorbing block faces the liquid storage cavity. Coolant enters the cold head body through the liquid inlet, contacts the heat-absorbing block when passing through the liquid storage cavity, carries away the heat from the heat-absorbing block, and then flows out of the cold head through the liquid outlet. The outer peripheral surface of the cold head body is provided with a plurality of recesses. The cold head also includes mounting brackets, the number of which is less than or equal to the number of recesses. The first end of the mounting bracket is disposed inside the recess, and the second end of the mounting bracket is disposed outside the recess. The second end of the mounting bracket is provided with a mounting hole, and the second end of the mounting bracket can be switched between different positions. This utility model's cold head significantly simplifies the complex structure of traditional mounting brackets and solves the selection and installation problems of various bracket components by directly mounting a switchable mounting bracket into a recess on the cold head body. Because the mounting bracket is located in a recess on the outer circumference of the cold head body, it also greatly reduces the area occupied by the mounting bracket and improves the integration of the mounting bracket and the cold head body. This significantly reduces the overall space occupied by the cold head body and mounting bracket, allowing the cold head to be installed on motherboards with limited space, greatly improving the ease of installation. Furthermore, since there is only one set of mounting brackets directly mounted on the cold head body, the problem of losing multiple sets of mounting brackets due to idleness is avoided, making computer hardware upgrades more convenient and efficient.

[0016] The cold head body in this invention is the main part of the cold head. It only needs to cooperate with the heat-absorbing block to form a liquid outlet cavity, enabling heat exchange between the coolant and the heat-absorbing block. Its specific design, implementation structure, working principle, and installation method with the heat-absorbing block are common knowledge in the field and will not be elaborated further here. Furthermore, unless specifically limited in this invention, there is no need to further limit the structure and components of the cold head body. For example, the cold head body can have a pump structure and pump function, or it can be a structure that only serves as a liquid storage unit. That is, the improved cold head technology in this invention can be applied to integrated liquid coolers or split liquid coolers. For example, it can be applied to the split liquid cooler in Document 2 or the integrated liquid cooler in Document 1. The specific definitions and distinctions between integrated and split liquid coolers are common knowledge in the field and will not be elaborated here. Unless explicitly limited in this invention, the cold head in this invention is not limited to integrated liquid coolers.

[0017] The basic structure, heat absorption principle, processing technology, materials, and how the heat-absorbing block (also known as a cold plate, heat-spreading plate, heat-conducting plate, etc.) in this utility model, as well as how it is installed with the cold head body to form a liquid storage cavity, are all common knowledge in this field, and the relevant background knowledge will not be elaborated.

[0018] Furthermore, the second end of the mounting bracket can swing between different positions. This facilitates the adjustment of the mounting bracket's position without any disassembly or assembly; different CPU models can be installed and adapted simply by swinging the mounting bracket. Of course, in other implementations, as long as the mounting bracket can be positioned and installed in the required location, it may not require swinging between different positions.

[0019] Furthermore, the cold head body also includes a shaft, and the first end of the mounting bracket is provided with a shaft hole through which the shaft passes. The cooperation between the shaft and the shaft hole allows for better assembly and installation of the mounting bracket between the cold head bodies, and facilitates the swinging of the mounting bracket in different positions for position switching. This design only needs to allow the first end of the mounting bracket to rotate relative to the cold head body, enabling the second end of the mounting bracket to switch between different positions. Unless otherwise specified in this invention, the installation and cooperation relationship between the shaft and the shaft hole, and between the shaft and the cold head body, does not need to be explicitly defined. For example, the shaft can be mounted on the cold head body, fixed or movable relative to the cold head body, or the shaft can be integral with the cold head body and relatively fixed. The shaft hole and the shaft can be an interference fit for relative fixation, or a clearance fit, etc., allowing relative movement.

[0020] Furthermore, the number of mounting brackets is equal to the number of recesses, and the number of shafts is the same as the number of recesses. The number of mounting brackets and recesses can be set to be the same to achieve a one-to-one corresponding mounting structure. Alternatively, the number of recesses can be increased, and a corresponding number of mounting brackets can be set at specific recess locations.

[0021] Furthermore, the number of notches is 2 to 4, preferably 4. Generally, two mounting brackets can also be used to install the cold head body, but due to industry practice and the common cold head body structure, using 4 mounting brackets is a more preferred method.

[0022] Furthermore, the mounting bracket is entirely plate-shaped. This minimizes the mounting area and allows for easier installation into the recess of the cold head body. This further enables the integration and miniaturization of the cold head, a key factor in improving its compatibility.

[0023] Furthermore, the shaft is mounted on the cold head body, and the mounting bracket is rotatable relative to the shaft.

[0024] Optionally, the shaft is fixedly connected to the cold head body.

[0025] Optionally, the shaft is fixedly connected to the mounting bracket, and the two can be fastened together or interference-fitted, and the shaft can rotate relative to the notch.

[0026] Furthermore, the shaft is rotatable relative to the notch, and the mounting bracket is rotatably sleeved on the shaft.

[0027] Furthermore, the shaft hole is circular, and the mounting hole is elongated.

[0028] Furthermore, the main body of the cold head is generally rectangular, and the notch is located at the intersection of two adjacent vertical faces of the cold head main body. Positioning the notch at the intersection of adjacent vertical faces of the rectangular cold head main body allows for better utilization of the corner space, minimizing the area occupied by the second end of the mounting bracket extending out of the notch. This ensures that the mounting bracket occupies as little space as possible on the outside of the cold head main body during position switching, thus further reducing the overall space occupied by the cold head main body and mounting bracket, which is one of the keys to increasing the applicability of the cold head main body in various installation scenarios.

[0029] Furthermore, the overall shape of the aforementioned cold head body can also be cylindrical, with the notch located on the vertical surface of the cold head body and arranged symmetrically along an axis. Positioning the notch symmetrically can effectively distribute the space occupied by the mounting bracket, avoiding excessive space concentration in any one area, and also enabling a more reasonable distribution of installation and tightening forces for more stable fastening.

[0030] Furthermore, the notch has a top surface, a bottom surface, and two side surfaces, with an included angle θ between the two side surfaces. The included angle θ is 75~135°, preferably 90°. The two side surfaces can be used to limit the position of the mounting bracket. There is a transition chamfer at the intersection of the two side surfaces of the notch.

[0031] Furthermore, the mounting bracket has a top surface and a bottom surface, the first end of the mounting bracket has two sides, the two sides of the first end of the mounting bracket have an included angle α, and there is a transition chamfer at the intersection of the two sides of the first end of the mounting bracket.

[0032] Furthermore, the included angle α is smaller than the included angle θ, which allows the mounting bracket to rotate within the notch, and also makes it easier to rotate within the notch.

[0033] Furthermore, a shaft mounting hole is provided on the bottom surface of the notch.

[0034] Furthermore, a shaft mounting hole is provided on the top surface of the notch.

[0035] Furthermore, the lower end of the shaft abuts against the heat-absorbing block.

[0036] Furthermore, the cold head body also includes a pump and a cover. The pump includes an impeller and a stator. The impeller is disposed inside the liquid storage chamber, the stator is disposed outside the liquid storage chamber, and the cover is disposed outside the stator. As mentioned above, the cold head body may also not include a pump. For example, in a split liquid cooler, the pump may not be provided on the cold head body, as in the scheme in Reference 2. In addition, it is common knowledge in the art to provide a pump structure on the cold head body and to realize the function of the pump, and it will not be elaborated here. Unless explicitly limited, the present invention does not restrict the structure of the pump or the specific structural selection of the cover.

[0037] Furthermore, the pump has a pump casing, and the notch is provided on the outer peripheral surface of the pump casing. The design of the pump casing structure on the cold head body is also common knowledge; unless explicitly limited, this utility model does not impose further restrictions on the structure, shape, or selection of the pump casing. As long as the notch can be provided in accordance with the technical solution of this utility model and can be installed in conjunction with the mounting bracket, it is acceptable.

[0038] Furthermore, the thickness of the mounting bracket is equal to or less than the opening height of the recess. This allows the mounting bracket to be easily installed in the recess. Preferably, the mounting bracket thickness is equal to the recess opening height because when the bracket thickness equals the recess opening height, the mounting bracket, after being installed in the recess, generates a certain amount of damping, ensuring a secure installation while allowing for some swaying, facilitating user installation, fixation, and position adjustment. When the mounting bracket thickness is less than the recess opening height, although installation is more convenient, there is still a certain gap between the mounting bracket and the recess opening height. After installing the connecting screws, the connecting screws will exert downward pressure on the second end of the mounting bracket, causing the mounting bracket to tilt at a certain angle within the recess, resulting in poor installation. This gap can be eliminated by adding corresponding shims within the recess, which is a conventional method and will not be elaborated upon here.

[0039] Furthermore, the shaft is made of a metal or non-metal material with a certain strength and rust resistance, preferably stainless steel, and the mounting bracket is made of a metal or non-metal material with sufficient elasticity and hardness, preferably spring steel. The structure and material selection of other components, as well as the principles behind the implementation of the shape and shadow function, are all common sense, and various existing solutions are possible; therefore, this utility model will not elaborate further.

[0040] Furthermore, the liquid inlet is connected to a liquid inlet connector, and the liquid outlet is connected to a liquid outlet connector. The liquid inlet connector and the liquid outlet connector are for facilitating connection with the liquid cooling radiator. The connectors themselves and their fit with the liquid inlet and the liquid outlet are common knowledge in the field and will not be described in detail. This utility model does not impose specific structural limitations on the corresponding connectors.

[0041] Existing universal fastener improvements are either overly complex, take up too much space, or lack sufficient strength, making them impractical and unable to adapt to a wider range of application scenarios, such as incompatibility with smaller motherboards. The technical solution of this utility model has at least the following advantages and effects:

[0042] 1. This utility model integrates the mounting bracket and the cold head into one unit, which eliminates the problem of lost parts due to separate storage of fasteners, and simplifies the installation steps, improving the convenience of users in installing and replacing the cold head.

[0043] 2. The cold head mounting bracket of this utility model is set in the recess on the side of the cold head, which can significantly reduce the space required for the entire fastener and cold head installation. Furthermore, the second end of the cold head mounting bracket can be switched between different positions. Combined with the elongated mounting hole on the second end of the mounting bracket, it is not only suitable for all motherboards of mainstream brands such as AMD and Intel on the market, but can also be used on more smaller PCB motherboards. Attached Figure Description

[0044] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this utility model, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "level," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the liquid level of the first feature is higher than that of the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the liquid level of the first feature is lower than that of the second feature.

[0046] Figure 1 This is a structural diagram of the cold head in Embodiment 1 of this utility model.

[0047] Figure 2 This is an exploded view of the cold head and PCB in Embodiment 1 of this utility model.

[0048] Figure 3 This is an exploded view of the cold head and PCB of Embodiment 2 of this utility model.

[0049] Figure 4 This is a cross-sectional view (excluding connecting screws, PCB and its accessories) of the cold head of Embodiment 2 of this utility model.

[0050] Figure 5 This is a BB cross-sectional view of the cold head of Embodiment 2 of this utility model (excluding connecting screws, PCB and its accessories, etc.).

[0051] Figure 6 This is a structural schematic diagram of the cold head mounting bracket and shaft in Embodiment 2 of this utility model. Figure 6 a shows an isometric view of the mounting bracket and shaft, indicating the corresponding installation positions of the mounting bracket and shaft, where Figure 6 b shows a top view of the mounting bracket.

[0052] Figure 7 This is a top view of the mounting bracket for the cold head in Embodiment 3 of this utility model at different installation positions. Figure 7 a shows a schematic view of one installation location, where Figure 7 b shows a schematic view of another installation location.

[0053] Figure 8 This is a CC cross-sectional view of the cold head of Embodiment 3 of this utility model (excluding connecting screws, PCB and its accessories, etc.).

[0054] Reference numerals: 1. Cold head, 11. Cold head body, 12. Liquid inlet, 13. Liquid outlet, 14. Notch, 141. Top surface, 142. Bottom surface, 143. Side surface, 15. Mounting bracket, 151. Shaft hole, 152. Mounting hole, 16. Shaft, 17. Heat absorption block, 18. Pump, 181. Pump housing, 19. Cover, 2. PCB, 21. Connecting screw. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0056] Example 1

[0057] This embodiment provides a cold block for a liquid-cooled heat sink, such as Figure 1-3 As shown, the device includes a cold head body 11 and a heat absorber block 17. The heat absorber block 17 is disposed at the lower end of the cold head body 11. The cold head body 11 and the heat absorber block 17 enclose a liquid storage cavity. The cold head body 11 is provided with a liquid inlet 12 and a liquid outlet 13, which are respectively connected to the liquid storage cavity. The upper end of the heat absorber block 17 faces the liquid storage cavity. Coolant enters the cold head body 11 through the liquid inlet 12, passes through the liquid storage cavity, and carries away the heat from the heat absorber block 17. The liquid then flows out of the cold head 1 through the outlet 13. The outer peripheral surface of the cold head body 11 is provided with several recesses 14. The cold head 1 also includes mounting brackets 15. The number of mounting brackets 15 is less than or equal to the number of recesses 14. The first end of each mounting bracket 15 is disposed within a recess 14, and the second end of each mounting bracket 15 is disposed outside a recess 14. The second end of each mounting bracket 15 is provided with a mounting hole 152. The second end of each mounting bracket 15 can switch between different positions, such as... Figure 1 As shown. Typically, the cold head 1 is connected to the PCB 2 through the mounting hole 152 using a connecting screw 21. The connecting screw 21 can be of various forms and structures, which is common knowledge in the field and is not an improvement of this utility model, so it will not be described in detail.

[0058] The structure and shape of the cold head body 11 in this embodiment are not specifically limited, as long as it can cooperate with the heat absorber block 17 to form a liquid outlet cavity and enable heat exchange between the coolant and the heat absorber block. The structure and shape of the mounting bracket 15 in this embodiment are not specifically limited, as long as it is installed in conjunction with the notch 14.

[0059] Furthermore, such as Figure 1-2As shown, the second end of the mounting bracket 15 can swing between different positions. Of course, in other implementation schemes, as long as the mounting bracket 15 can be positioned and installed at the required position, it can also be installed without swinging between different positions.

[0060] Furthermore, the cold head 1 also includes a shaft 16, and the first end of the mounting bracket 15 is provided with a shaft hole 151, through which the shaft 16 passes.

[0061] In this embodiment, the cold head mounting bracket 15 is disposed within the recess 14 of the cold head body 11. The first end of the mounting bracket 15 is rotatable, and the second end can be switched between different positions, allowing the cold head 1 to be well-suited for all mainstream AMD and Intel motherboards on the market. This eliminates the hassle of replacing the mounting bracket when changing the cold head or motherboard, simplifying the operation. Furthermore, since a portion of the mounting bracket 15 is installed inside the cold head body 11, the portion of the mounting bracket 15 protruding from the cold head body 11 is greatly reduced, thus minimizing the space occupied by the mounting bracket in this embodiment. This allows the cold head to be more easily installed on a wider range of PCBs 2 (such as computer motherboards), especially smaller PCBs, enabling the cold head in this embodiment to be compatible with more chassis models, such as those with smaller PCBs and less space. This significantly expands the application scenarios of the cold head and liquid cooling radiator.

[0062] Example 2

[0063] Based on Embodiment 1, this embodiment provides a cold head for a liquid-cooled radiator, further defining the connection between the mounting bracket 15 and the cold head body 11, such as... Figures 3-5 As shown.

[0064] Furthermore, the number of mounting brackets 15 is equal to the number of recesses 14, and the number of shafts 16 is the same as the number of recesses 14.

[0065] Furthermore, the number of notches 14 is 2 to 4.

[0066] In one embodiment, the number of notches 14 is four.

[0067] Furthermore, the mounting bracket 15 is generally plate-shaped. This minimizes the space and area occupied by the mounting bracket 15 and allows for easier installation in the recess 14. This further enables the integration and miniaturization of the cold head 1, improving its adaptability and expanding its application scenarios.

[0068] Furthermore, the shaft 16 is mounted on the cold head body 11, and the mounting bracket 15 is rotatable relative to the shaft 16, such as... Figures 4-5 As shown.

[0069] In one embodiment, the shaft 16 is fixedly connected to the cold head body 11. For example, the shaft 16 can be mounted on the cold head body 11, or the shaft 16 and the cold head body 11 can be configured as an integral structure.

[0070] In another embodiment, the shaft 16 is fixedly connected to the mounting bracket 15, and the two can be fastened, threaded, or interference-fitted, etc. Furthermore, the shaft 16 is movably connected to the cold head body 11, allowing the shaft 16 to rotate relative to the recess 14. Of course, various other implementation methods are also possible, all of which are common knowledge in the art and will not be elaborated further.

[0071] In another embodiment, the shaft 16 is rotatable relative to the recess 14, and the mounting bracket 15 is rotatably sleeved on the shaft 16.

[0072] Example 3

[0073] Based on Embodiment 1 or 2, this embodiment provides a cold head for a liquid-cooled radiator, further defining the structure of the notch 14 and the mounting bracket 15, such as... Figures 4-6 As shown.

[0074] Furthermore, the shaft hole 151 is circular, and the mounting hole 152 is elongated. The elongated shape of the mounting hole 152 facilitates the movement of the mounting screw 21 of the fastener, increasing the range of motion of the installation position. Of course, other shapes for the mounting hole 152 are also feasible. The circular shape of the shaft hole 151 allows for more efficient machining and easier installation and engagement with the shaft 16. It also facilitates the rotational engagement between the shaft 16 and the mounting bracket 15 when needed.

[0075] Furthermore, the overall shape of the cold head body 11 can be rectangular, and the notch 14 is located at the intersection of two adjacent vertical surfaces of the cold head body 11, such as... Figures 1-4 As shown. The notch 14 is located at the intersection of adjacent vertical faces of the cuboid, which makes better use of the space in that corner. This minimizes the area of ​​the second end of the mounting bracket 15 extending out of the notch, and minimizes the space occupied by the mounting bracket 15 on the outside of the cold head body 11 during the entire position switching process. Therefore, the overall space occupied by the cold head body 11 and the mounting bracket 15 is further reduced, which is also one of the keys to increasing the applicability of the cold head body 11 and the liquid cooling heat dissipation device.

[0076] Furthermore, the overall shape of the cold head body 11 can be cylindrical, and the notch 14 is provided on the vertical surface of the cold head body 11, and the notch 14 is arranged symmetrically along the axis. For example, the notch 14 can be provided at four positions that are 90° apart.

[0077] Furthermore, the notch 14 has a top surface 141 and a bottom surface 142 and two side surfaces 143 that can be used for positioning. There is an included angle θ between the two side surfaces 143, and the included angle θ is 75~135°. There is a transition chamfer at the intersection of the two side surfaces 143 of the notch 14.

[0078] As one implementation method, the included angle θ is 90°, such as... Figure 4 As shown.

[0079] Furthermore, the mounting bracket 15 has a top surface and a bottom surface, the first end of the mounting bracket 15 has two side surfaces, the two side surfaces of the first end of the mounting bracket 15 have an included angle α, and there is a transition chamfer at the intersection of the two side surfaces of the first end of the mounting bracket 15.

[0080] Furthermore, the included angle α is smaller than the included angle θ.

[0081] Furthermore, a shaft mounting hole is provided on the bottom surface 142 of the recess 14, such as... Figures 3-5 As shown.

[0082] Furthermore, a shaft mounting hole is provided on the top surface 141 of the recess 14, such as... Figures 3-5 As shown.

[0083] Furthermore, the lower end of the shaft 16 abuts against the heat-absorbing block 17, as shown below. Figure 5 As shown.

[0084] In one embodiment, the shaft 16 is made of stainless steel, and the mounting bracket 15 is made of spring steel.

[0085] Example 4

[0086] Based on embodiment 1, 2, or 3, this embodiment provides a cold head for a liquid-cooled heat sink, such as... Figures 7-8 As shown.

[0087] The cold head body 11 also includes a pump 18 and a cover 19. The pump 18 includes an impeller and a stator. The impeller is disposed inside the liquid storage chamber, the stator is disposed outside the liquid storage chamber, and the cover 19 is disposed outside the stator.

[0088] Furthermore, the pump 18 has a pump housing 181, and the notch 14 is provided on the outer peripheral surface of the pump housing 181.

[0089] Furthermore, such as Figure 5 As shown, the thickness d of the mounting bracket 15 is equal to the opening height h of the recess 14. This design allows the mounting bracket 15 to generate a certain amount of damping after being installed into the recess 14, ensuring a secure installation while also allowing for swinging, facilitating user installation, fixation, and adjustment.

[0090] In one embodiment, the shaft 16 is made of stainless steel, and the mounting bracket 15 is made of spring steel.

[0091] Furthermore, the inlet 12 is connected to an inlet connector, and the outlet 13 is connected to an outlet connector.

Claims

1. A cold head for a liquid-cooled radiator, comprising a cold head body (11) and a heat-absorbing block (17), wherein the heat-absorbing block (17) is disposed at the lower end of the cold head body (11). The cold head body (11) and the heat absorption block (17) enclose a liquid storage cavity. The cold head body (11) is provided with a liquid inlet (12) and a liquid outlet (13). The inlet (12) and outlet (13) are respectively connected to the storage chamber. The upper end of the heat-absorbing block (17) faces the liquid storage cavity. Its features are, The outer peripheral surface of the cold head body (11) is provided with several notches (14). The cold head (1) also includes mounting brackets (15), the number of which is less than or equal to the number of notches (14). The first end of the mounting bracket (15) is disposed inside the recess (14), and the second end of the mounting bracket (15) is disposed outside the recess (14). The second end of the mounting bracket (15) is provided with a mounting hole (152), and the second end of the mounting bracket (15) can be switched between different positions.

2. The cold head of a liquid-cooled heat sink according to claim 1, characterized in that The second end of the mounting bracket (15) can swing between different positions.

3. A cold head of a liquid-cooled heat sink according to claim 2, characterized in that It also includes a shaft (16), and the first end of the mounting bracket (15) is provided with a shaft hole (151), through which the shaft (16) passes.

4. The cold head of a liquid-cooled heat sink of claim 3, wherein, The number of mounting brackets (15) is equal to the number of recesses (14), and the number of shafts (16) is the same as the number of recesses (14).

5. A cold head of a liquid-cooled heat sink according to claim 4, characterized in that: The number of notches (14) is 2 to 4.

6. The cold head of a liquid-cooled radiator according to claim 4, characterized in that: The number of notches (14) is 4.

7. The cold head of a liquid-cooled radiator according to claim 3, characterized in that: The mounting bracket (15) is plate-shaped as a whole.

8. The cold head of a liquid-cooled radiator according to claim 7, characterized in that: The shaft (16) is mounted on the cold head body (11), and the mounting bracket (15) is rotatable relative to the shaft (16).

9. The cold head of a liquid-cooled radiator according to claim 8, characterized in that: The shaft (16) is fixedly connected to the cold head body (11).

10. The cold head of a liquid-cooled radiator according to claim 9, characterized in that: The shaft (16) is fixedly connected to the mounting bracket (15), and the shaft (16) is rotatable relative to the notch (14).

11. The cold head of a liquid-cooled radiator according to claim 8, characterized in that: The shaft (16) is rotatable relative to the notch (14), and the mounting bracket (15) is rotatably sleeved on the shaft (16).

12. The cold head of a liquid-cooled radiator according to claim 3, characterized in that: The shaft hole (151) is circular, and the mounting hole (152) is elongated.

13. The cold head of a liquid-cooled radiator according to claim 3, characterized in that: The main body of the cold head (11) is rectangular in shape, and the notch (14) is located at the intersection of two adjacent vertical surfaces of the main body of the cold head (11).

14. The cold head of a liquid-cooled radiator according to claim 3, characterized in that: The main body of the cold head (11) is cylindrical in shape, and the notch (14) is provided on the vertical surface of the main body of the cold head (11), and the notch (14) is arranged symmetrically.

15. The cold head of a liquid-cooled radiator according to claim 13 or 14, characterized in that: The notch (14) has a top surface (141) and a bottom surface (142) and two side surfaces (143). There is an included angle θ between the two side surfaces (143), and the included angle θ is 75~135°. There is a transition chamfer at the intersection of the two side surfaces (143) of the notch (14).

16. The cold head of a liquid-cooled radiator according to claim 15, characterized in that: The mounting bracket (15) has a top surface and a bottom surface. The first end of the mounting bracket (15) has two sides. The two sides of the first end of the mounting bracket (15) have an included angle α. The intersection of the two sides of the first end of the mounting bracket (15) has a transition chamfer. The included angle α is smaller than the included angle θ.

17. The cold head of a liquid-cooled radiator according to claim 16, characterized in that: The included angle θ is 90°.

18. The cold head of a liquid-cooled radiator according to claim 15, characterized in that: A shaft mounting hole is provided on the bottom surface (142) of the recess (14) and a shaft mounting hole is provided on the top surface (141) of the recess (14). The lower end of the shaft (16) abuts against the heat-absorbing block (17).

19. The cold head of a liquid-cooled radiator according to claim 3, characterized in that: The main body (11) of the cold head also includes a pump (18) and a cover (19). The pump (18) includes an impeller and a stator. The impeller is disposed in the liquid storage chamber, the stator is disposed outside the liquid storage chamber, and the cover (19) is disposed outside the stator. The pump (18) has a pump housing (181). The notch (14) is disposed on the outer circumferential surface of the pump housing (181). The shaft (16) is made of stainless steel, the mounting bracket (15) is made of spring steel, the liquid inlet (12) is connected to a liquid inlet connector, and the liquid outlet (13) is connected to a liquid outlet connector.

20. The cold head of a liquid-cooled radiator according to claim 1, characterized in that: The thickness of the mounting bracket (15) is equal to the opening height of the notch (14).

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