High-leakage-proof anti-corrosion liquid cooling case of zero-weld-seam flow channel
By matching the seamless pipe with the gradually expanding port of nickel-titanium alloy with the U-shaped groove and filling it with solder paste, combined with CNC machining, the problems of easy leakage and corrosion of the weld seam of the liquid cooling channel are solved, achieving high anti-leakage and anti-corrosion effect and cost reduction, which is suitable for high anti-leakage and anti-corrosion liquid cooling chassis.
Patent Information
- Application Number
- CN202520026123.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing liquid cooling channel processing methods suffer from problems such as easy leakage and corrosion at the welds, and have high production costs, making it difficult to meet high requirements for leak prevention and corrosion resistance.
The seamless pipe with gradually expanding port of nickel-plated titanium alloy is matched with the U-shaped pipe installation groove, and the gap is filled with solder paste. Combined with CNC machining and screw assembly structure, a zero-weld flow channel is formed, avoiding traditional welding process. Chemically inert titanium alloy material and nickel plating layer are used to improve corrosion resistance.
It achieves high leak-proof and corrosion-proof performance of the zero-weld-seam flow channel, reduces production costs by 30%, improves the corrosion resistance of the flow channel, and ensures the stability and heat dissipation performance of the equipment over a wide temperature range.
Smart Images

Figure CN223598192U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid-cooled ruggedized computer anti-leakage and anti-corrosion technology, specifically to a highly leak-proof and anti-corrosion liquid-cooled chassis with zero weld seam flow channels. Background Technology
[0002] Liquid-cooled ruggedized computers offer advantages such as low noise, high heat dissipation efficiency, and small size, making them the preferred heat dissipation method for high-power, highly integrated, and miniaturized devices. Liquid cooling equipment mainly includes flow-through, immersion, and phase-change liquid cooling systems, with flow-through liquid cooling systems being the most widely used in the field of ruggedized computers.
[0003] Currently, liquid cooling channel forming methods involve brazing, friction stir welding, and other welding processes based on CNC machining. All of these methods result in weld seams in the channels. Because the welding process has extremely high requirements for the weld surface, improper process handling can lead to leakage risks in liquid cooling equipment under high-pressure supply or pressure impact. Furthermore, after prolonged operation, the cooling medium will corrode the weld seams, further increasing the risk of damage and leakage to the liquid cooling equipment.
[0004] Another method for processing and forming liquid cooling channels is 3D printing. Although this method can eliminate channel welds, it has a higher production cost, the material strength is difficult to achieve, and the aluminum alloy channels are prone to corrosion when using pure water coolant for a long time, increasing the risk of channel blockage.
[0005] To address the above technical issues, a highly leak-proof and corrosion-resistant liquid-cooled chassis with a zero-weld-seam flow channel is proposed. Summary of the Invention
[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-leakage and corrosion-resistant liquid-cooled chassis with a zero-weld-seam flow channel. While ensuring the heat dissipation efficiency of the liquid-cooled chassis, it achieves a zero-weld-seam flow channel, improves the anti-leakage effect and corrosion resistance, and reduces equipment production costs.
[0007] The technical problem solved by this utility model is achieved through the following technical solution:
[0008] A high-leakage and corrosion-resistant liquid-cooled chassis with zero weld seams includes a main chassis component, a panel component, an aviation connector component, and a fluid connector. The panel component and the aviation connector component are respectively mounted on the main chassis component. The main chassis component includes a chassis frame and a nickel-titanium alloy gradually expanding port seamless pipe. The nickel-titanium alloy gradually expanding port seamless pipe forms a flow channel. The upper and lower end faces and side end faces of the chassis frame are symmetrically provided with pipe mounting grooves. The nickel-titanium alloy gradually expanding port seamless pipe is installed in the pipe mounting groove and is sealed on the chassis frame by an upper cover plate, a lower cover plate, and a side cover plate. The gradually expanding port of the nickel-titanium alloy gradually expanding port seamless pipe located on the side wall of the chassis frame is used to connect to the fluid connector.
[0009] Furthermore, the pipe mounting groove is a U-shaped pipe mounting groove, and the surface of the U-shaped pipe mounting groove is nickel-plated.
[0010] Furthermore, the nickel-titanium alloy gradually expanding port seamless pipeline is a three-dimensional spatial bending pipeline that matches the pipeline installation groove.
[0011] Furthermore, the gap between the nickel-titanium alloy gradually expanding port seamless pipe and the pipe mounting groove is filled with solder paste.
[0012] Furthermore, the box frame is equipped with a board module and a base plate component.
[0013] The advantages and positive effects of this utility model are:
[0014] 1. The novel zero-weld-seam flow channel high leak-proof and corrosion-resistant liquid-cooled chassis uses solder paste to fill and weld the gap between the U-shaped pipe mounting groove and the nickel-titanium alloy gradually expanding port seamless pipe, which can ensure the tightness and reliability of the connection between the chassis frame and the nickel-titanium alloy gradually expanding port seamless pipe.
[0015] 2. This utility model features a high-leakage and corrosion-resistant liquid-cooled chassis with a zero-weld-seam flow channel, eliminating the need for high-precision welding processes such as overall brazing and friction stir welding. The chassis is screw-assembled, requiring only CNC machining, solder paste soldering, and pipe bending, reducing production costs by 30% and shortening the processing cycle by 10 days.
[0016] 3. The present invention provides a high-leakage and corrosion-resistant liquid-cooled chassis with a zero-weld-seam flow channel. The chassis frame has a pipe installation groove in which a nickel-titanium alloy gradually expanding port seamless pipe is installed, which realizes the zero-weld-seam flow channel effect and eliminates the risk of leakage caused by coolant erosion of the weld seam during high-pressure liquid supply, pressure impact, and long-term use.
[0017] 4. The novel liquid-cooled chassis with zero weld seam flow channel has high leak-proof and corrosion-resistant properties. The nickel-titanium alloy progressively expanding port seamless pipe has high strength. When bending in space, the pipe is filled with wax inside, so that the pipe does not collapse on the surface during bending, which greatly improves the success rate of pipe bending.
[0018] 5. The novel zero-weld-seam flow channel of this utility model is a highly leak-proof and corrosion-resistant liquid-cooled chassis. The flow channel material is a chemically inert titanium alloy, and the surface is plated with an inactive nickel layer, which can ensure the reliable connection with solder paste, improve the corrosion resistance of the flow channel, and reduce the risk of oxide blockage of the flow channel.
[0019] 6. The novel zero-weld-seam flow channel high-leakage and corrosion-resistant liquid-cooled chassis can withstand high temperature +60℃ operation and low temperature -70℃ storage without structural damage, and can meet the thermal performance requirements of ruggedized computers. Attached Figure Description
[0020] Figure 1 This is a perspective view of the leak-proof and corrosion-resistant liquid-cooled chassis with a zero-weld-seam flow channel according to this utility model.
[0021] Figure 2 This is an exploded view of the leak-proof and corrosion-resistant liquid-cooled chassis with a zero-weld-seam flow channel according to this utility model;
[0022] Figure 3 This is an exploded view of the main body components of the high leak-proof and corrosion-resistant liquid-cooled chassis with zero weld seam flow channel according to this utility model.
[0023] Figure 4 This is a schematic diagram of the frame structure of the zero-weld-seam flow channel high leak-proof and corrosion-resistant liquid-cooled chassis of this utility model;
[0024] Figure 5 This is a schematic diagram of the seamless pipeline with gradually expanding nickel-titanium alloy plated port of the high leak-proof and corrosion-resistant liquid-cooled chassis with zero weld seam flow channel according to this utility model.
[0025] In the picture:
[0026] 1-Main enclosure component, 2-Panel component, 3-Aircraft insert plate component, 4-Board module, 5-Fluid connector, 6-Base plate component, 7-Pipeline expanding port, 8-Enclosure frame, 9-Lower cover plate, 10-Pipeline mounting groove, 11-Side cover plate, 12-Upper cover plate, 13-Nickel-titanium alloy expanding port seamless pipeline, 14-Upper wall plate, 15-Right wall plate, 17-Lower wall plate, 18-Left wall plate. Detailed Implementation
[0027] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.
[0028] like Figures 1 to 5 As shown, a high-leakage and corrosion-resistant liquid-cooled chassis with zero weld seam flow channels includes a main chassis component 1, a panel component 2, an aviation plug plate component 3, and a fluid connector 5. The main chassis component 1, the panel component 2, and the aviation plug plate component 3 are screw-mounted structures and are fixed by M3 screws.
[0029] The main housing component 1 is the core component of this invention. The main housing component 1 has a screw-on structure and includes a housing frame 8 and a nickel-titanium alloy gradually expanding port seamless pipe 13. The nickel-titanium alloy gradually expanding port seamless pipe 13 forms a flow channel. The upper and lower end faces and side end faces of the housing frame 8 are symmetrically provided with pipe mounting grooves 10. The pipe mounting grooves 10 are U-shaped pipe mounting grooves 10, and the surface of the U-shaped pipe mounting grooves 10 is nickel-plated. The nickel-titanium alloy gradually expanding port seamless pipe 13 is a three-dimensional spatial bending pipe that matches the pipe mounting groove 10. The nickel-titanium alloy gradually expanding port seamless pipe 13 is installed in the pipe mounting groove 10, and the gap between the nickel-titanium alloy gradually expanding port seamless pipe 13 and the pipe mounting groove 10 is filled with solder paste. The gradually expanding port 7 of the nickel-titanium alloy gradually expanding port seamless pipe 13 located on the side wall of the housing frame 8 is used for seamless connection of the fluid connector 5. The fluid connector 5 is located outside the housing. The upper cover plate 12, lower cover plate 9, and side cover plate 11 are respectively fixed to the box frame 8 by adhesive and M2 countersunk screws. The box frame 8 contains the board module 4 and the base plate component 6.
[0030] The enclosure frame 8 is composed of an upper wall panel 14, a lower wall panel 17, a left wall panel 18, and a right wall panel 15, all screwed together with M4 screws. U-shaped pipe mounting grooves 10 are machined on the outer surfaces of the upper wall panel 14, lower wall panel 17, and left wall panel 18 using CNC machining. These grooves are used to install nickel-titanium alloy involute-port seamless pipes 13. The width of the U-shaped pipe mounting groove 10 is 0.8 mm larger than the outer diameter of the nickel-titanium alloy involute-port seamless pipe 13. The inner surface of the U-shaped pipe mounting groove 10 and the inner and outer surfaces of the nickel-titanium alloy involute-port seamless pipe 13 are all nickel-plated. Solder paste is used to fill and weld the gap between the U-shaped pipe mounting groove 10 and the nickel-titanium alloy involute-port seamless pipe 13, ensuring the tightness and reliability of the connection between the enclosure frame 8 and the nickel-titanium alloy involute-port seamless pipe 13.
[0031] The nickel-titanium alloy flared port seamless pipe 13 is a three-dimensional bent pipe with no weld seams and a fully sealed sidewall. Before bending, the port of the nickel-titanium alloy flared port seamless pipe 13 is flared to enlarge and flatten the end face, forming the flared port 7, ensuring the airtight fit between the nickel-titanium alloy flared port seamless pipe 13 and the fluid connector 5. During bending, the inside of the nickel-titanium alloy flared port seamless pipe 13 is filled with wax to eliminate pipe collapse during bending. After bending, the nickel-titanium alloy flared port seamless pipe 13 is heated to remove the internal wax and then nickel-plated, greatly improving the bending success rate. Thus, the flow channel is a complete seamless structure, and the inner and outer surfaces of the nickel-titanium alloy flared port seamless pipe 13, as well as the U-shaped pipe mounting groove 10 of the housing frame 8, are all nickel-plated, greatly enhancing the leak-proof and corrosion-resistant capabilities of the liquid cooling system. After the nickel-plated titanium alloy flared port seamless pipe 13 is installed in the corresponding U-shaped mounting slot, solder paste is used to fill the gaps, ensuring tight contact between the nickel-plated titanium alloy flared port seamless pipe 13 and the enclosure frame 8. The nickel plating layer also increases the adhesion of the solder paste, ensuring the stability of the nickel-plated titanium alloy flared port seamless pipe 13 within the U-shaped mounting slot. During equipment operation, the heat transfer path is: enclosure body - solder paste - nickel-plated seamless titanium alloy pipe - coolant. The heat transfer path is not increased, ensuring the equipment's heat dissipation performance.
[0032] Because the seamless liquid cooling chassis features CNC machining, screw assembly, and solder paste soldering, it eliminates the need for traditional high-precision welding processes such as overall brazing or friction stir welding, reducing production costs by 30%. The entire liquid cooling piping system has a seamless structure, and all parts in contact with the coolant are nickel-plated, significantly improving the equipment's leak-proof and corrosion-resistant properties.
[0033] The working principle of this utility model:
[0034] The nickel-titanium alloy finned port seamless pipe 13 is installed in the U-shaped pipe mounting groove 10 of the housing frame 8. Solder paste is used to fill and weld the gap between the U-shaped pipe mounting groove 10 and the nickel-titanium alloy finned port seamless pipe 13. The fluid connector 5 is connected to the finned port 7 of the nickel-titanium alloy finned port seamless pipe 13 located on the side wall of the housing frame 8. The upper cover plate 12, lower cover plate 9 and side cover plate 11 are fixed to the housing frame 8 by adhesive and M2 countersunk screws to form the main housing component 1. The board module 4 and the bottom plate component 6 are installed in the housing frame 8. The main housing component 1, the panel component 2 and the aviation plug-in component 3 are fixed by M3 screws.
[0035] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.
Claims
1. A highly leak-proof and corrosion-resistant liquid-cooled chassis with a zero-weld-seam flow channel, characterized in that: The device includes a main housing component, a panel component, an aviation connector component, and a fluid connector. The panel component and the aviation connector component are respectively mounted on the main housing component. The main housing component includes a housing frame and a nickel-titanium alloy gradually expanding port seamless pipe. The nickel-titanium alloy gradually expanding port seamless pipe forms a flow channel. The upper and lower end faces and side end faces of the housing frame are symmetrically provided with pipe mounting grooves. The nickel-titanium alloy gradually expanding port seamless pipe is installed in the pipe mounting groove and is sealed on the housing frame by an upper cover plate, a lower cover plate, and a side cover plate. The gradually expanding port of the nickel-titanium alloy gradually expanding port seamless pipe located on the side wall of the housing frame is used to connect to the fluid connector.
2. The high-leakage-proof and corrosion-resistant liquid-cooled chassis with zero-weld-seam flow channels according to claim 1, characterized in that: The pipe mounting groove is a U-shaped pipe mounting groove, and the surface of the U-shaped pipe mounting groove is nickel-plated.
3. The high-leakage and corrosion-resistant liquid-cooled chassis with zero-weld-seam flow channels according to claim 1, characterized in that: The nickel-titanium alloy gradually expanding port seamless pipeline is a three-dimensional spatial bending pipeline that matches the pipeline installation groove.
4. The high-leakage and corrosion-resistant liquid-cooled chassis with zero-weld-seam flow channels according to claim 1, characterized in that: The gap between the nickel-titanium alloy flared port seamless pipe and the pipe mounting groove is filled with solder paste.
5. The high-leakage and corrosion-resistant liquid-cooled chassis with zero-weld-seam flow channels according to claim 1, characterized in that: The box frame contains a board module and a base plate component.