A cooling device upper cover and a manufacturing method of a cooling device

Abstract

This invention provides a cooling device cover and a method for manufacturing the cooling device. The cooling device cover includes a coolant tank and an interface boss. The interface boss has an inlet / outlet channel communicating with the coolant tank. The coolant tank is used to house a lower cover with heat dissipation fins. The manufacturing method of the cooling device cover includes: preparing a cover raw material; the cover raw material is a sheet metal with a thickness less than the target thickness of the cooling device cover; heating the cover raw material to a target temperature; placing the cover raw material in a mold for hot forging; machining the coolant tank and the interface boss to obtain a semi-finished cover; machining the inlet / outlet channel on the semi-finished cover; finishing the surface of the semi-finished cover; and drilling holes in the interface boss to form a pipe interface, thus obtaining the cooling device cover. This invention solves the problems of high material loss, long processing cycle, and easy dimensional deviation and rough inner wall when the cooling device cover is manufactured by machining.

Description

Technical Field

[0001] This invention relates to the field of cooling device technology, and more specifically, to a cooling device cover and a method for manufacturing the cooling device. Background Technology

[0002] Cooling devices are key components for heat dissipation in high-power electronic components and core industrial equipment. Liquid cooling devices employ a contact-type heat dissipation method, introducing coolant into the device through an inlet pipe. The coolant then passes through the heat exchange fins, carrying away heat, and is finally discharged through an outlet pipe.

[0003] The existing cooling device covers are mostly made by machining. Since machining directly requires a lot of milling and drilling operations on thick plates, the material loss is large and the processing cycle is long. Furthermore, complex structures such as coolant tanks and interface bosses are difficult to form in one go, which can easily lead to problems such as dimensional deviations and rough inner walls, affecting the efficiency of coolant flow. Summary of the Invention

[0004] The problem solved by this invention is that the cooling device cover is manufactured by machining, which results in high material loss, long processing cycle, and easy occurrence of dimensional deviation and rough inner wall.

[0005] To address the aforementioned problems, this invention provides a method for manufacturing a cooling device cover. The cooling device cover includes opposing coolant tanks and interface bosses. The interface bosses have inlet and outlet channels communicating with the coolant tanks. The coolant tanks are used to house a lower cover with heat dissipation fins. The manufacturing method of the cooling device cover includes: preparing a cover raw material; the cover raw material is a sheet metal with a thickness less than the target thickness of the cooling device cover; heating the cover raw material to a target temperature; placing the cover raw material in a mold for hot forging; machining the coolant tanks and the interface bosses to obtain a semi-finished cover; machining the inlet and outlet channels on the semi-finished cover; finishing the surface of the semi-finished cover; and drilling holes in the interface bosses to form pipe interfaces, thus obtaining the cooling device cover.

[0006] The technical effects achieved by adopting this solution are as follows: The cooling device cover is integrally formed by hot forging of thin sheet metal, which greatly reduces material loss and machining allowance; the core structures such as the coolant tank and interface boss are formed simultaneously by hot forging, and the inlet and outlet channels are then machined to achieve coolant heat exchange and coolant guidance during inlet and outlet. Furthermore, the hot forging process simplifies manufacturing steps, significantly shortens the production cycle, and improves production efficiency; the simultaneous hot forging of the coolant tank and interface boss ensures relative positional accuracy and avoids dimensional deviations caused by step-by-step machining; the inlet and outlet channels are relatively narrow, and separate machining can avoid defects caused by hot forging when machining narrow channels; the semi-finished cover formed by hot forging has dense grains and significantly improved structural strength. Compared with machining only, the deformation resistance and impact resistance of the hot-forged cover are stronger.

[0007] Furthermore, the coolant tank is provided with a heat dissipation platform and a guide channel located on at least one side of the heat dissipation platform; the heat dissipation platform is used to correspond to the heat dissipation fins; the step of placing the raw material of the upper cover into the mold for hot forging and processing the coolant tank and the interface boss specifically includes: placing the raw material of the upper cover into the mold for hot forging, and simultaneously processing the heat dissipation platform and the guide channel in the coolant tank.

[0008] The technical effects achieved by adopting this technical solution are as follows: the heat dissipation platform and guide channel are formed simultaneously in one hot forging, reducing the separate milling process for the heat dissipation platform and guide channel. Moreover, the heat dissipation platform and guide channel have less machining on the bottom surface compared to the coolant tank. One-time forming also makes it less likely to have problems such as insufficient material, wrinkles or incomplete forming of the heat dissipation platform and guide channel. Therefore, it can improve efficiency while ensuring the dimensional accuracy and flatness of these small structures such as the guide channel. The surrounding guide channel can guide the flow of coolant in a direction, avoiding turbulence and eddies of coolant, allowing the coolant to evenly cover the heat dissipation fins and improve heat exchange efficiency.

[0009] Furthermore, the side of the liquid inlet / outlet channel has at least one guide surface, and the width of the liquid inlet / outlet channel gradually decreases in the direction away from the coolant tank; the processing of the liquid inlet / outlet channel on the upper cover semi-finished product specifically includes: milling the position of the guide channel in the coolant tank to form the liquid inlet / outlet channel and the guide surface in the liquid inlet / outlet channel.

[0010] The technical effects achieved by adopting this solution are as follows: The inlet and outlet channels employ a gradually widened structure and side guide surfaces to guide the coolant and prevent turbulence and stagnation. During inlet flow, the coolant quickly covers the heat dissipation fins, enhancing heat exchange. During outlet flow, the coolant between the heat dissipation fins is easily collected and concentrated for discharge. Milling can be used for precision machining of narrower flow channels, and the guide surface parameters can be flexibly adjusted to adapt to different heat dissipation flow requirements.

[0011] Furthermore, the coolant tank is provided with a positioning rib located on the heat dissipation platform. The positioning rib is used to position and install the heat dissipation fins on the heat dissipation platform and guide the liquid in the inlet and outlet channels to the heat dissipation platform. The process of placing the raw material of the upper cover into the mold for hot forging to process the coolant tank and the interface boss also includes: hot forging and forming the positioning rib at the same time.

[0012] The technical effects achieved by adopting this solution are as follows: the positioning ribs enable rapid and precise assembly of the heat dissipation fins without the need for additional positioning fixtures, improving assembly efficiency and avoiding uneven heat dissipation caused by fin misalignment; the positioning ribs also have a flow guiding function, directing the coolant in the inlet and outlet channels to the heat dissipation platform to ensure that the coolant fully covers the heat dissipation fins without any heat dissipation dead zones; the positioning ribs and the heat dissipation platform are formed simultaneously by hot forging in one step, and the two are firmly connected with high structural strength, ensuring the stability of positioning and flow guidance.

[0013] Furthermore, the coolant tank has a recessed groove in the circumference to fit the edge of the lower cover; the process of placing the upper cover raw material into a mold for hot forging to process the coolant tank and the interface boss also includes: hot forging to simultaneously form the recessed groove.

[0014] The technical effects achieved by adopting this technical solution are as follows: the edge of the trough and the lower cover forms a fitting fit, increasing the contact area between the upper and lower covers, improving the welding sealing, and further preventing coolant leakage; the fitting structure enables the upper and lower covers to be quickly aligned, reducing assembly deviations and ensuring the overall dimensional accuracy of the cooling device; the one-piece molded trough has no splicing gaps, has high structural strength, is not easily deformed or cracked when subjected to coolant pressure, and avoids material waste caused by the cutting and grooving process of the trough.

[0015] Furthermore, the upper cover of the cooling device is provided with fastener mounting positions on its periphery; the manufacturing method of the upper cover of the cooling device further includes: placing the upper cover raw material into a mold for hot forging, while forming the fastener mounting positions; or, milling the fastener mounting positions.

[0016] The technical effects achieved by adopting this technical solution are as follows: the fastener mounting position is formed by hot forging, which can further simplify the process and improve the forming efficiency; the fastener mounting position is machined by milling, which can set different fastener mounting positions for different installation requirements, making it more flexible.

[0017] Furthermore, heating the raw material for the upper cover to the target temperature specifically includes heating the raw material for the upper cover to 680 to 950°C.

[0018] The technical effects achieved by adopting this technical solution are as follows: the temperature range of 680 to 950℃ is suitable for the hot forging requirements of most metal sheets, such as copper, ensuring that the raw materials are fully softened and the fluidity meets the standards, and ensuring that complex structures such as coolant tanks, interface bosses, and inlet and outlet channels are formed completely without edge missing material or wrinkles; at the same time, it avoids the sheet from overheating and coarse grains due to excessive temperature, and ensures the mechanical properties of the top cover semi-finished product.

[0019] Furthermore, the finishing process of the surface of the top cover semi-finished product specifically includes reserving a finishing allowance of 0.5mm to 3mm for the top cover semi-finished product, and milling the surface of the top cover semi-finished product according to the finishing allowance.

[0020] The technical effects achieved by adopting this solution are as follows: A pre-reserved finishing allowance is used to offset minor dimensional errors from hot forging, ensuring the finished size accuracy and surface finish of the cooling device, and meeting assembly and sealing requirements; a finishing allowance of 0.5mm to 3mm will not lead to excessive material waste and processing time, thus effectively improving the efficiency and accuracy of subsequent finishing processes; the milling process can quickly finish the semi-finished cover to the target size, correct surface defects, and improve the appearance quality and fitting accuracy of the cooling device cover.

[0021] The present invention also provides a method for manufacturing a cooling device, the method comprising: manufacturing a cooling device upper cover by means of the manufacturing method of the cooling device upper cover provided by any of the above technical solutions; manufacturing a lower cover with heat dissipation fins; fastening the heat dissipation fins into the coolant tank; aligning and welding the edge of the lower cover with the edge of the coolant tank to obtain the cooling device.

[0022] The technical effects achieved by adopting this technical solution are as follows: Based on the integrated manufacturing process of the cooling device cover, the upper and lower covers are more precisely matched and the welding seal is stronger, ensuring the compatibility of the heat dissipation fins and the coolant tank, avoiding the risk of leakage of the overall cooling device, and ensuring stable heat dissipation efficiency; the upper and lower covers of the cooling device can be quickly assembled and welded, the overall process is more streamlined, and production efficiency is greatly improved.

[0023] Furthermore, the manufacturing of the lower cover with heat dissipation fins specifically includes: preparing the raw material for the lower cover; the raw material for the lower cover is a sheet metal; milling the raw material for the lower cover to obtain a plate boss; and using a tooth-shaving process on the plate boss to form multiple parallel heat dissipation fins to obtain the lower cover with heat dissipation fins.

[0024] The technical effects achieved by adopting this solution are as follows: The lower cover itself is a thin-plate structure, combined with parallel and densely distributed heat dissipation fins. It adopts a milling and shaving process, which does not generate a lot of material waste. Furthermore, the use of milling machines and shaving machines reduces mold costs and allows for flexible changes in the position and form of the heat dissipation fins to adapt to different heat dissipation requirements. In particular, the milling process can quickly form plate bosses, and the cross-sectional shape of the plate bosses is determined according to the target cross-sectional shape of the heat dissipation fins. The milling process ensures high dimensional accuracy in the width, height, and shape of the heat dissipation fins. The shaving process can quickly cut heat dissipation fins of equal thickness, which is suitable for heat dissipation fins with extremely small spacing, thereby improving the heat exchange effect.

[0025] In summary, the above-mentioned technical solutions of this application can have one or more of the following advantages or beneficial effects: (1) The cooling device cover is made of thin plate hot forging integral molding, which greatly reduces material loss and processing allowance; (2) The core structures such as the coolant tank, interface boss and inlet / outlet channel are formed by hot forging simultaneously, which can realize coolant heat exchange and coolant guidance during inlet and outlet, and the hot forging process simplifies the manufacturing process, significantly shortens the production cycle and improves production efficiency; (3) The guide surface is integrally hot forged, making the inner wall smoother and burr-free, reducing coolant flow loss and improving circulation speed; (4) The positioning ribs realize the rapid and accurate assembly of heat dissipation fins, without the need for additional positioning tooling, improving assembly efficiency and avoiding (5) The groove and the edge of the lower cover form a fitting, increasing the contact area between the upper and lower covers, improving the welding seal, and further preventing coolant leakage; (6) The positioning ribs and grooves are cut and grooved, resulting in material waste; (7) The milling process can quickly refine the upper cover semi-finished product to the target size, correct surface defects, and improve the appearance quality and fitting accuracy of the cooling device upper cover; (8) The lower cover itself is a thin sheet structure, combined with parallel and densely distributed heat dissipation fins. The waste material after the milling process is less, and a large amount of material waste will not be generated. At the same time, the milling process reduces the mold cost and can flexibly change the position and form of the heat dissipation fins to adapt to different heat dissipation position requirements. Attached Figure Description

[0026] Figure 1 A flowchart illustrating a method for manufacturing a cooling device cover according to the present invention; Figure 2 This is a bottom view of a top cover material after hot forging; Figure 3 for Figure 2 Top view of the raw materials for the upper and middle cover; Figure 4 for Figure 3 A cross-sectional view along the AA direction; Figure 5 A bottom view of another type of top cover material after hot forging; Figure 6 for Figure 5 Cross-sectional view along the BB direction; Figure 7 This is a structural diagram of another type of cover material after hot forging; Figure 8 This is a schematic diagram of the structure of the cooling device's upper cover; Figure 9 A schematic diagram of the cooling device's upper cover from another perspective; Figure 10 for Figure 8 A cross-sectional view along the CC direction; Figure 11 This is a schematic diagram of the lower cover structure; Figure 12 This is a schematic diagram of the pipe joint structure; Figure 13 This is a schematic diagram of the splitter structure.

[0027] Explanation of reference numerals in the attached figures: 100-Cooling device top cover; 101-Top cover semi-finished product; 110-Coolant tank; 111-Guide flow channel; 120-Inlet boss; 121-Inlet channel; 122-Guide surface; 130-Outlet boss; 140-Positioning rib; 150-Heat dissipation platform; 160-Settling tank; 161-Lower cover positioning component; 170-Fixing hole; 171-Fastener mounting platform; 200-Lower cover; 210-Heat dissipation fins; 300-Pipe connector; 310-Sealing shaft; 400-Diverter; 410-Main interface; 420-Secondary interface; 430-Diverter channel. Detailed Implementation

[0028] The purpose of this invention is to provide a cooling device cover and a method for manufacturing the cooling device, so as to achieve the effects of reducing material loss and rapid prototyping of the cooling device.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] See Figures 1-11 The present invention provides a method for manufacturing a cooling device upper cover 100. The cooling device upper cover 100 includes a coolant tank 110 and an interface boss. The interface boss is provided with an inlet and outlet channel communicating with the coolant tank 110. The coolant tank 110 is used to install a lower cover 200 with heat dissipation fins 210.

[0031] The manufacturing method of the cooling device cover 100 includes: Prepare the raw material for the top cover; the raw material for the top cover is a sheet material with a thickness less than 100 times the target thickness of the top cover of the cooling device; Heat the raw materials for the top cover to the target temperature; The raw material for the top cover is placed in a mold for hot forging, and the coolant tank 110 and interface boss are machined to obtain the top cover semi-finished product 101. Liquid inlet and outlet channels are machined on the semi-finished upper cover 101; The surface of the top cover semi-finished product 101 is finished; Drill holes in the interface boss to form a pipe interface, and obtain the cooling device cover 100.

[0032] In this embodiment, hot forging refers to heated forging or heated stamping. The cooling device cover 100 is integrally formed by hot forging of thin sheet metal, which greatly reduces material loss and machining allowance. The core structures such as the coolant tank 110 and interface boss are formed simultaneously by hot forging, and the inlet and outlet channels are then machined to achieve coolant heat exchange and coolant guidance during inlet and outlet. Furthermore, the hot forging process simplifies manufacturing steps, significantly shortens the production cycle, and improves production efficiency. The simultaneous hot forging of the coolant tank 110 and interface boss ensures relative positional accuracy and avoids dimensional deviations caused by step-by-step machining. The inlet and outlet channels are relatively narrow, and separate machining can avoid defects caused by hot forging when machining narrow channels. The hot-forged cover semi-finished product 101 has dense grains and significantly improved structural strength. Compared with machining only, the hot-forged product has stronger resistance to deformation and impact.

[0033] For example, the cooling device includes a cooling device body with a thickness of 7mm to 15mm, a coolant groove 110 with a depth of 5mm to 10mm on one side of the cooling device body, and a boss interface with a height of 7mm to 20mm protruding from the other side of the cooling device body. The target thickness of the cooling device is the sum of the thickness of the cooling device body and the boss interface, i.e., 14mm to 35mm. If the top cover raw material is processed by machining, a top cover raw material with a thickness of 20mm to 40mm is required, and a large amount of material around the interface boss and inside the coolant groove 110 needs to be removed. However, by using a hot forging process, while keeping the lateral dimension of the top cover raw material unchanged or even reduced, the thickness of the top cover raw material can be reduced from 14mm to 35mm to 10mm to 20mm, effectively saving material. Furthermore, the lateral dimension of the top cover raw material also increases during the hot forging process, so the initial lateral dimension can also be reduced compared to the machining process.

[0034] Preferably, the cooling device cover 100 is formed by hot forging of thin sheet metal, which can also achieve the effect of processing multiple cooling device covers 100 at the same time, further improving processing efficiency.

[0035] In one specific embodiment, see Figures 5-10The coolant tank 110 is provided with a heat dissipation platform 150 and a guide channel 111 located on at least one side of the heat dissipation platform 150; the heat dissipation platform 150 is used to correspond to the heat dissipation fins 210; the upper cover raw material is placed into the mold for hot forging, and the coolant tank 110 and the interface boss are processed, specifically including: placing the upper cover raw material into the mold for hot forging, and simultaneously processing the heat dissipation platform 150 and the guide channel 111 in the coolant tank.

[0036] It should be noted that the heat dissipation platform 150 and the guide channel 111 are formed simultaneously in one hot forging, reducing the need for separate milling processes for the heat dissipation platform 150 and the guide channel 111. Moreover, the heat dissipation platform 150 and the guide channel 111 require less machining on the bottom surface compared to the coolant tank 110. One-time forming also reduces the likelihood of problems such as material shortage, wrinkles, or incomplete forming of the heat dissipation platform 150 and the guide channel 111. Therefore, it can improve efficiency while ensuring the dimensional accuracy and flatness of small structures such as the guide channel 111. The surrounding guide channel 111 can directionally guide the flow of coolant, avoiding turbulence and eddies in the coolant, allowing the coolant to evenly cover the heat dissipation fins 210, thereby improving heat exchange efficiency.

[0037] Preferably, the coolant tank 110 is provided with two heat dissipation platforms 150, and the guide channel 111 is provided between the two heat dissipation platforms 150 and on the side of any heat dissipation platform 150 away from the other heat dissipation platform 150, for guiding the flow of coolant during re-entry and exit.

[0038] In one specific embodiment, the interface boss includes an inlet boss 120 and an outlet boss 130, and the inlet and outlet channels include an inlet channel 121 disposed in the inlet boss 120 and an outlet channel disposed in the outlet boss 130.

[0039] The coolant tank 110 and the interface boss are machined to obtain the top cover semi-finished product 101, specifically including the simultaneous forming of the inlet boss 120 and the outlet boss 130. It should be noted that the inlet boss 120 and the outlet boss 130 achieve coolant diversion and circulation through independent inlet and outlet structures. The diversion design of the inlet channel 121 and the outlet channel can increase the contact area between the coolant and the heat dissipation fins 210, further improving the heat dissipation efficiency of the cooling device.

[0040] Preferably, the inlet boss 120 is located in the middle of the cooling device body, the heat dissipation fins 210 are disposed on both sides of the inlet channel 121, and the outlet boss 130 is located at the edge of the cooling body. When the coolant is introduced into the inlet channel 121, it can evenly guide the coolant to the heat dissipation fins 210 on both sides. Correspondingly, there is a large amount of space between the inlet boss 120 and the outlet boss 130, as well as on the side of the inlet boss 120 away from the outlet boss 130. The hot forging process effectively avoids material waste in this part of the space due to cutting.

[0041] Furthermore, the guide channel 111 between the two heat dissipation platforms 150 is used to correspond to the liquid inlet channel 121, and the guide channel 111 on the side of any heat dissipation platform 150 away from the other heat dissipation platform 150 is used to correspond to the liquid outlet channel.

[0042] In one specific embodiment, the side of the inlet / outlet channel has at least one guide surface 122, and the width of the inlet / outlet channel gradually decreases in the direction away from the coolant tank 110; the inlet / outlet channel is processed on the upper cover semi-finished product 101, specifically including: milling the position of the guide channel 111 in the coolant tank 110 to form the inlet / outlet channel and the guide surface 122 in the inlet / outlet channel.

[0043] It should be noted that the inlet and outlet channels adopt a gradually widened structure and a side guide surface 122, which guides the coolant and avoids turbulence and stagnation. During inlet, the coolant can quickly cover the heat dissipation fins 210, enhancing the heat exchange effect. During outlet, the coolant can be collected and concentrated between the heat dissipation fins 210. Milling can be used to precisely machine narrower flow channels, and the parameters of the guide surface 122 can be flexibly adjusted to adapt to different heat dissipation flow requirements.

[0044] Preferably, the heat dissipation fins 210 on each side of the liquid inlet channel 121 are stacked and arranged in a direction perpendicular to the heat dissipation fins 210. The width direction of the liquid outlet channel is the direction perpendicular to the heat dissipation fins 210. Therefore, the flow guide surface 122 extends in a direction perpendicular to the heat dissipation fins 210, which facilitates the guidance of coolant to the end positions of multiple heat dissipation fins 210. Coolant can flow through the flow channel between any two adjacent heat dissipation fins 210, so as to achieve a more uniform distribution of coolant.

[0045] In one specific embodiment, the coolant tank 110 is provided with a positioning rib 140 located on the heat dissipation platform 150. The positioning rib 140 is used to position and install the heat dissipation fins 210 on the heat dissipation platform 150 and guide the liquid in the inlet and outlet channels to the heat dissipation platform 150. The upper cover raw material is placed into the mold for hot forging to process the coolant tank 110 and the interface boss. The method also includes hot forging and forming the positioning rib 140 at the same time.

[0046] It should be noted that the positioning rib 140 enables the rapid and precise assembly of the heat dissipation fins 210 without the need for additional positioning fixtures, thus improving assembly efficiency and preventing uneven heat dissipation caused by the misalignment of the heat dissipation fins 210. The positioning rib 140 also has a flow guiding function, directing the coolant in the inlet and outlet channels to the heat dissipation platform 150 to ensure that the coolant fully covers the heat dissipation fins 210 without any heat dissipation dead zones. The positioning rib 140 and the heat dissipation platform 150 are formed simultaneously by hot forging in one step, and the two are firmly connected with high structural strength, ensuring the stability of positioning and flow guiding.

[0047] Preferably, the positioning rib 140 is located in the middle of each heat dissipation platform 150 and extends along the direction parallel to the heat dissipation fins 210 to the liquid inlet channel 121 or the liquid outlet channel, thereby guiding the coolant to flow to the heat dissipation fins 210 on both sides.

[0048] Furthermore, in the hot forging process, the positioning ribs 140 can be formed simultaneously simply by setting the corresponding positioning ribs 140 grooves on the hot forging die, reducing additional cutting steps.

[0049] In one specific embodiment, the coolant tank 110 has a recessed groove 160 in the circumferential direction for fitting the edge of the lower cover 200; the upper cover raw material is placed in a mold for hot forging to process the coolant tank 110 and the interface boss, and the process also includes: hot forging simultaneously forming the recessed groove 160.

[0050] It should be noted that the edge of the sink 160 and the lower cover 200 forms a fitting, which increases the contact area between the upper and lower covers 200, improves the welding seal, and further prevents coolant leakage. The fitting structure allows for quick alignment of the upper and lower covers 200, reduces assembly deviation, and ensures the overall dimensional accuracy of the cooling device. The one-piece molded sink 160 has no splicing gaps, has high structural strength, is not easily deformed or cracked when subjected to coolant pressure, and avoids material waste caused by cutting and grooving processes in the sink 160.

[0051] Preferably, a lower cover positioning member 161 is provided on the side wall of the settling tank 160. The lower cover positioning member 161 protrudes from the side wall of the settling tank 160 and is used for positioning and installing the lower cover 200 at its edge. The lower cover positioning member 161 may be an arc-shaped structure, for example, but this is not limited here.

[0052] Furthermore, during the hot forging of the sink 160, the lower cover positioning component 161 is formed simultaneously to improve processing efficiency and connection stability of the lower cover positioning component 161.

[0053] In one specific embodiment, the cooling device cover 100 is provided with fastener mounting positions on its periphery; the manufacturing method of the cooling device cover 100 further includes: placing the cover raw material into a mold for hot forging, while forming the fastener mounting positions; or, milling the fastener mounting positions.

[0054] It should be noted that using hot forging to simultaneously form the fastener mounting position can further simplify the process and improve forming efficiency; using milling to machine the fastener mounting position allows for different fastener mounting positions to be set for different installation requirements, making it more flexible.

[0055] Preferably, the fastener mounting position includes a fastener mounting platform 171 and fixing holes 170 located around the body of the cooling device. The fastener mounting platform 171 corresponds to the outer side of the side wall of the coolant tank 110. While the coolant tank 110 undergoes concave deformation during the hot forging process, the fastener mounting platform 171 on the other side can be formed simultaneously. After the fastener mounting platform 171 is formed, according to the needs of the fixing holes 170, round holes or waist holes can be formed on the fastener mounting platform 171 by milling or drilling, or additional threaded holes can be machined to adapt to different fasteners or different fixing hole installation distances. This is not limited here.

[0056] In one specific embodiment, heating the raw material for the top cover to a target temperature specifically includes heating the raw material for the top cover to 680 to 950°C. Preferably, the target temperature can be 700°C, 800°C, 900°C, etc., and is not limited here.

[0057] It should be noted that the temperature range of 680 to 950℃ is suitable for the hot forging requirements of most metal sheets, such as copper, ensuring that the raw materials are fully softened and the fluidity meets the standards, and ensuring that complex structures such as the coolant tank 110, interface boss, and inlet / outlet channels are formed completely without edge missing material or wrinkles; at the same time, it avoids the sheet from overheating and coarse grains due to excessive temperature, and ensures the mechanical properties of the top cover semi-finished product 101.

[0058] In one specific embodiment, the surface of the top cover semi-finished product 101 is finished, specifically including leaving a finishing allowance of 0.5mm to 3mm on the top cover semi-finished product 101, and milling the surface of the top cover semi-finished product 101 according to the finishing allowance. For example, a finishing allowance of 2mm is left, but this is not limited here.

[0059] It should be noted that the allowance for finishing is reserved to offset the slight dimensional errors of hot forging, ensuring the dimensional accuracy and surface finish of the finished cooling device, and meeting assembly and sealing requirements; the 0.5mm to 3mm finishing allowance will not be too large, resulting in material waste and processing time, thereby effectively improving the efficiency and accuracy of subsequent finishing; the milling process can quickly finish the upper cover semi-finished product 101 to the target size, correct surface defects, and improve the appearance quality and fitting accuracy of the upper cover 100 of the cooling device.

[0060] In one specific embodiment, holes are drilled in the interface boss to form a pipeline interface. Specifically, holes are drilled in the liquid inlet boss 120 and the liquid outlet boss 130 in the horizontal direction to form a liquid inlet pipe interface and a liquid outlet pipe interface, thereby facilitating the horizontal installation of the liquid inlet pipe connector and the liquid outlet pipe connector and reducing the vertical space occupation.

[0061] In one specific embodiment, before obtaining the cooling device upper cover 100, the upper cover semi-finished product 101 is cleaned to remove debris and cutting fluid, facilitating the subsequent installation and connection of the lower cover 200. Preferably, the upper cover semi-finished product 101 is ultrasonically cleaned.

[0062] The present invention also provides a method for manufacturing a cooling device, the method comprising: manufacturing a cooling device upper cover 100 by means of the manufacturing method of the cooling device upper cover 100 provided by any of the above technical solutions; manufacturing a lower cover 200 with heat dissipation fins 210; fastening the heat dissipation fins 210 into a coolant tank 110; aligning and welding the edge of the lower cover 200 with the edge of the coolant tank 110 to obtain the cooling device.

[0063] It should be noted that, based on the integrated manufacturing process of the cooling device upper cover 100, the upper and lower covers 200 have higher fitting precision and stronger welding sealing, ensuring the compatibility of the heat dissipation fins 210 and the coolant tank 110, avoiding the risk of leakage of the overall cooling device, and ensuring stable heat dissipation efficiency; the cooling device upper cover 100 and lower cover 200 are quickly assembled and welded, the overall process is more streamlined, and production efficiency is greatly improved.

[0064] In one specific embodiment, see Figure 11 Manufacturing a lower cover 200 with heat dissipation fins 210 specifically includes: preparing the raw material for the lower cover; the raw material for the lower cover is a plate; milling the raw material for the lower cover to obtain plate bosses; using a tooth-shaving process on the plate bosses to form multiple parallel heat dissipation fins 210, thereby obtaining a lower cover 200 with heat dissipation fins 210.

[0065] It should be noted that the lower cover 200 itself is a thin-plate structure, combined with parallel and densely arranged heat dissipation fins 210. It adopts a milling and shaving process, which will not generate a lot of material waste. Furthermore, the use of milling machines and shaving machines reduces mold costs and allows for flexible changes in the position and form of the heat dissipation fins 210 to adapt to different heat dissipation requirements. Among them, the milling process can quickly form plate bosses. The cross-sectional shape of the plate bosses is determined according to the target cross-sectional shape of the heat dissipation fins 210. The milling process ensures high dimensional accuracy in the width, height and shape of the heat dissipation fins 210. The shaving process can quickly cut heat dissipation fins 210 of equal thickness, which is suitable for heat dissipation fins 210 with extremely small spacing, thereby improving the heat exchange effect. It can also shave out heat dissipation fins 210 of different thicknesses and spacings according to different needs.

[0066] For example, the raw material of the lower cover is milled to obtain the plate boss, that is, the plate is circumferentially milled to form the cover plate of the lower cover and the plate boss on the cover plate, and the width and target number of heat dissipation fins 210 are controlled; and the top surface of the plate boss and the bottom surface of the cover plate are milled to improve the thickness accuracy of the plate boss and the cover plate and reduce the surface roughness.

[0067] In one specific embodiment, see Figure 12 The cooling device also includes a pipe connector 300, which includes an inlet pipe connector and an outlet pipe connector. The manufacturing method of the cooling device includes: machining the pipe connector 300 using a turning process, and installing the pipe connector 300 onto the inlet boss 120 and the outlet boss 130. For example, the pipe connector 300 has multiple axially oriented sealing shaft portions 310, which protrude from the side of the pipe connector 300 for sealing mating with the inlet pipe interface and the outlet pipe interface; when machining the pipe connector 300 using a turning process, the sealing shaft portions 310 are simultaneously machined on the side of the pipe connector 300, thereby achieving efficient and precise machining.

[0068] In one specific embodiment, see Figure 13 The cooling device also includes a distributor 400, which includes a main interface 410 and multiple secondary interfaces 420. The distributor 400 has a distribution channel 430 that connects the main interface 410 and the secondary interfaces 420. The secondary interfaces 420 are used to connect to the liquid inlet bosses 120. Multiple liquid inlet bosses 120 can be connected simultaneously through the distributor 400 to achieve heat dissipation for multiple electronic components.

[0069] The manufacturing method of the cooling device includes: precision milling the blank surface of the distributor 400, drilling holes to form the main channel interface 410 and the secondary channel interface 420, drilling side holes to form the distribution channel 430, sealing and welding the side holes to seal the distribution channel 430, chamfering and cleaning the surface of the distributor 400, and finally connecting the liquid inlet boss 120 through a pipeline.

[0070] Furthermore, the secondary interface 420 protrudes from the side of the distributor 400 to increase the internal length of the secondary interface 420, thereby increasing the sealing distance or the number of sealing rings and improving the sealing effect. Correspondingly, while precision milling the blank surface of the distributor 400, the grooves between adjacent secondary interfaces 420 are also precision milled to form multiple secondary interfaces 420, improving processing efficiency.

[0071] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A method for manufacturing a cooling device cover, characterized in that, The upper cover of the cooling device includes a coolant tank and an interface boss. The interface boss is provided with an inlet and outlet channel that communicates with the coolant tank. The coolant tank is used to install a lower cover with heat dissipation fins. The method for manufacturing the upper cover of the cooling device includes: Prepare the raw material for the top cover; the raw material for the top cover is a sheet material with a thickness less than the target thickness of the top cover of the cooling device; Heat the raw material for the top cover to the target temperature; The raw material for the upper cover is placed in a mold for hot forging, and the coolant tank and the interface boss are processed to obtain a semi-finished upper cover. The liquid inlet / outlet channel is machined on the semi-finished upper cover; The surface of the semi-finished top cover is then finished. Drill holes in the interface boss to form a pipe interface, thus obtaining the upper cover of the cooling device.

2. The method for manufacturing the cooling device cover according to claim 1, characterized in that, The coolant tank is provided with a heat dissipation platform and a guide channel located on at least one side of the heat dissipation platform; the heat dissipation platform is used to correspond to the heat dissipation fins; The step of placing the raw material of the upper cover into the mold for hot forging and processing the coolant tank and the interface boss specifically includes: placing the raw material of the upper cover into the mold for hot forging, and simultaneously processing the heat dissipation platform and the guide channel in the coolant tank.

3. The method for manufacturing the cooling device cover according to claim 2, characterized in that, The side of the liquid inlet / outlet channel has at least one guide surface, and the width of the liquid inlet / outlet channel gradually decreases in the direction away from the coolant tank. The process of machining the liquid inlet / outlet channel on the upper cover semi-finished product specifically includes: milling the position of the guide channel in the coolant tank to form the liquid inlet / outlet channel and the guide surface in the liquid inlet / outlet channel.

4. The method for manufacturing the cooling device cover according to claim 2, characterized in that, The coolant tank is provided with positioning ribs located on the heat dissipation platform. The positioning ribs are used to position and install the heat dissipation fins on the heat dissipation platform and to guide the liquid in the inlet and outlet channels to the heat dissipation platform. The process of hot forging the raw material of the upper cover into a mold to process the coolant tank and the interface boss also includes: hot forging simultaneously forming the positioning rib.

5. The method for manufacturing the cooling device cover according to claim 2, characterized in that, The coolant tank has a groove around its circumference to fit the edge of the lower cover; The process of hot forging the raw material of the upper cover into a mold to process the coolant tank and the interface boss also includes: hot forging simultaneously forming the sink.

6. The method for manufacturing the cooling device cover according to claim 1, characterized in that, Fastener mounting positions are provided on the periphery of the upper cover of the cooling device; The manufacturing method of the cooling device cover further includes: placing the cover raw material into a mold for hot forging, while simultaneously forming the fastener mounting position; or, milling the fastener mounting position.

7. The method for manufacturing the cooling device cover according to claim 1, characterized in that, The step of heating the raw material of the upper cover to the target temperature specifically includes heating the raw material of the upper cover to 680 to 950°C.

8. The method for manufacturing the cooling device cover according to claim 1, characterized in that, The finishing process of the surface of the top cover semi-finished product specifically includes reserving a finishing allowance of 0.5mm to 3mm for the top cover semi-finished product, and milling the surface of the top cover semi-finished product according to the finishing allowance.

9. A method for manufacturing a cooling device, characterized in that, The method for manufacturing the cooling device includes: The cooling device cover is manufactured by the manufacturing method of the cooling device cover as described in any one of claims 1-8; Manufacture a bottom cover with heat dissipation fins; The heat dissipation fins are attached to the coolant tank, and the edge of the lower cover is aligned with the edge of the coolant tank and welded together to obtain the cooling device.

10. The method for manufacturing the cooling device according to claim 9, characterized in that, The manufacturing of the lower cover with heat dissipation fins specifically includes: The raw material for the lower cover is a sheet material. The lower cover raw material is milled to obtain plate bosses; The protrusions of the plate are processed using a tooth-shaving technique to form multiple parallel heat dissipation fins, resulting in a lower cover with heat dissipation fins.

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