Laser welding liquid cooling plate sealing structure
By designing a limiting structure and a compression sealing structure, the offset problem during the docking process of the liquid cooling plate is solved, achieving rapid docking and efficient sealing, thus improving the ease of use and sealing effect of the liquid cooling plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUOKE LIGHT METAL (BINZHOU) MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-07-14
Smart Images

Figure CN224488030U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid cooling plate technology, specifically to a laser-welded liquid cooling plate sealing structure. Background Technology
[0002] A liquid cooling plate is a device that removes heat through liquid cooling. Its main body consists of two sets of spliced plates with internal channels or copper pipes for liquid flow. However, existing laser-welded liquid cooling plates have certain defects in use. The welding of existing liquid cooling plates leads to high temperatures, and materials such as rubber cannot be used to fill the gaps at the welding positions, resulting in increased thermal resistance and reduced efficiency of the liquid cooling plate.
[0003] Patent CN206893612U discloses a sealing structure for high-temperature vacuum welding liquid cooling plates. By using a spring sealing sheet, the gap can be effectively reduced or even eliminated, thus improving the efficiency of the liquid cooling plate. The spring sealing sheet is made of stainless steel, which can effectively avoid the electrochemical corrosion of other materials after long-term contact with copper, thereby improving the stability of product performance. The spring sealing sheet is made by stamping and fills the gap by elasticity, so it does not require high processing precision and improves processing efficiency.
[0004] In the aforementioned patent, the device solves the problems mentioned above. However, the liquid cooling plate in the patent still has the following problems: during the process of connecting the upper and lower liquid cooling plates, it is necessary to ensure a stable connection between the two sets of liquid cooling plates, and the outer sides of the two sets of plates are smooth and flat. During the connection process, misalignment is likely to occur, affecting the sealing effect. At the same time, if the plates are accidentally touched before welding the upper and lower plates, misalignment is likely to occur, making it difficult to stably ensure the sealing effect between the two sets of plates.
[0005] To address the aforementioned issues, innovative designs are urgently needed based on the existing sealing structure. Utility Model Content
[0006] The purpose of this utility model is to provide a laser-welded liquid cooling plate sealing structure to solve the problems mentioned in the background art, which require ensuring a stable connection between the upper and lower sets of liquid cooling plates during the process of connecting the upper and lower sets of liquid cooling plates. Furthermore, the outer sides of the two sets of plates are smooth and flat, and misalignment is prone to occur during the connection process, affecting the sealing effect. Additionally, if the plates are accidentally touched before welding, misalignment is likely to occur, making it difficult to stably guarantee the sealing effect between the two sets of plates.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a laser welding liquid cooling plate sealing structure, including a lower liquid cooling plate and an upper liquid cooling plate disposed at the upper end of the lower liquid cooling plate;
[0008] The lower liquid cooling plate and the upper liquid cooling plate are provided with pipe installation grooves, and the pipe installation grooves are provided with liquid delivery pipes. The two ends of the liquid delivery pipes are provided with pipe joints. The lower liquid cooling plate and the upper liquid cooling plate are provided with limit installation holes.
[0009] A quick-connection limiting structure is provided between the lower liquid cooling plate and the upper liquid cooling plate, and a compression sealing structure is provided between the lower liquid cooling plate and the upper liquid cooling plate.
[0010] Preferably, the limiting structure includes a docking groove and a docking plate, wherein the docking groove is formed inside the lower liquid cooling plate, and the docking plate is fixedly installed at the lower end of the upper liquid cooling plate, while the docking plate is located inside the docking groove.
[0011] Preferably, the docking plate has a motion groove inside, and two sets of limiting blocks are slidably installed inside the motion groove, with the ends of the two sets of limiting blocks being inclined.
[0012] Preferably, two sets of moving plates are slidably installed inside the docking plate, and the two sets of moving plates are slidably connected to each other, and a support spring is fixedly installed between the moving plates and the limiting block.
[0013] Preferably, a connecting plate is fixedly installed at the end of the moving plate away from the docking plate, and a pressing inclined plate is fixedly installed at the end of the connecting plate away from the moving plate, and the pressing inclined plate is located on the outside of the docking plate.
[0014] Preferably, the sealing structure includes a sealing groove, which is formed on the outside of the lower liquid cooling plate and the upper liquid cooling plate, and a lower sealing element and an upper sealing element are provided inside the sealing groove.
[0015] Preferably, the upper seal and the lower seal are coupled to each other, and the upper seal and the lower seal are located inside the upper liquid cooling plate and the lower liquid cooling plate, respectively. The upper end of the lower seal is nested with an inner sealing ring and an outer sealing ring.
[0016] Compared with the prior art, the beneficial effects of this utility model are: by bringing the lower liquid cooling plate and the upper liquid cooling plate closer to each other, the docking groove can be engaged with the docking plate, thereby completing the rapid assembly of the liquid cooling plate. Furthermore, during the docking process, the lower and upper sealing elements can be used to squeeze the inner and outer sealing rings to ensure the sealing effect inside the liquid cooling plate.
[0017] 1. It is equipped with a pipe installation groove, which can limit the infusion pipe. The connection between the lower liquid cooling plate and the upper liquid cooling plate can automatically limit and seal the infusion pipe, thereby ensuring the stability of the liquid cooling plate connection installation.
[0018] 2. It is equipped with a docking plate and a limiting block. By bringing the lower liquid cooling plate and the upper liquid cooling plate closer together, the docking groove can squeeze the extrusion inclined plate. The movement of the extrusion inclined plate will cause the limiting block to move and use the support spring to move the limiting block to the lower end of the lower liquid cooling plate, thereby completing the stable assembly of the liquid cooling plate and ensuring the convenience of using the liquid cooling plate.
[0019] 3. Furthermore, an inner sealing ring and an outer sealing ring are provided. By bringing the lower liquid cooling plate and the upper liquid cooling plate closer together, the lower sealing element and the upper sealing element can squeeze the inner sealing ring and the outer sealing ring, so that the inner and outer sealing rings seal the lower sealing element and the upper sealing element, ensuring the sealing performance of the liquid cooling plate. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a three-dimensional structural diagram of the docking plate of this utility model;
[0022] Figure 3 This is a three-dimensional structural diagram of the pipe fitting of this utility model;
[0023] Figure 4 This is a three-dimensional structural diagram of the limiting block of this utility model;
[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the extrusion inclined plate of this utility model;
[0025] Figure 6 This is a bottom-view perspective view of the three-dimensional structure of the upper sealing component of this utility model;
[0026] Figure 7 This is a three-dimensional structural diagram of the infusion tube of this utility model.
[0027] In the diagram: 1. Lower liquid cooling plate; 2. Upper liquid cooling plate; 3. Pipe installation groove; 4. Infusion pipe; 5. Pipe joint; 6. Connecting groove; 7. Connecting plate; 8. Limiting mounting hole; 9. Motion groove; 10. Limiting block; 11. Support spring; 12. Motion plate; 13. Connecting plate; 14. Extrusion inclined plate; 15. Sealing groove; 16. Lower seal; 17. Inner sealing ring; 18. Outer sealing ring; 19. Upper seal. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] In a specific embodiment, such as Figures 1-3 The basic usage process of this laser-welded liquid cooling plate is shown in the figure.
[0030] The lower liquid cooling plate 1 and the upper liquid cooling plate 2 are provided at the upper end of the lower liquid cooling plate 1; the lower liquid cooling plate 1 and the upper liquid cooling plate 2 are provided with pipe installation grooves 3, and the pipe installation grooves 3 are provided with liquid delivery pipes 4, and the two ends of the liquid delivery pipes 4 are provided with pipe joints 5. The lower liquid cooling plate 1 and the upper liquid cooling plate 2 are provided with limit installation holes 8.
[0031] When using this laser welding liquid cooling plate, the infusion pipe 4 needs to be installed between the lower liquid cooling plate 1 and the upper liquid cooling plate 2, and the liquid is transported through the infusion pipe 4. During the installation process, the lower liquid cooling plate 1 and the upper liquid cooling plate 2 need to be sealed so that the lower liquid cooling plate 1 and the upper liquid cooling plate 2 completely wrap the infusion pipe 4. Then, the outer sides of the lower liquid cooling plate 1 and the upper liquid cooling plate 2 can be welded together. At the same time, it is necessary to connect with the external pipeline through the pipe joint 5 to ensure the stability of the liquid transport inside the infusion pipe 4. Finally, the lower liquid cooling plate 1 and the upper liquid cooling plate 2 can be installed in the working position through the limiting installation hole 8.
[0032] In one specific embodiment, such as Figures 1-6 As shown, the process of the lower liquid cooling plate 1 and the upper liquid cooling plate 2 quickly limiting the infusion tube 4 is disclosed.
[0033] A quick-connection limiting structure is provided between the lower liquid cooling plate 1 and the upper liquid cooling plate 2. The limiting structure includes a docking groove 6 and a docking plate 7. The docking groove 6 is opened inside the lower liquid cooling plate 1, and the docking plate 7 is fixedly installed at the lower end of the upper liquid cooling plate 2. The docking plate 7 is located inside the docking groove 6. A motion groove 9 is opened inside the docking plate 7, and two sets of limiting blocks 10 are slidably installed inside the motion groove 9. The ends of the two sets of limiting blocks 10 that are far apart from each other are set in an inclined structure. Two sets of motion plates 12 are slidably installed inside the docking plate 7, and the two sets of motion plates 12 are slidably connected to each other. A support spring 11 is fixedly installed between the motion plate 12 and the limiting block 10. A connecting plate 13 is fixedly installed at the end of the motion plate 12 that is far away from the docking plate 7, and a pressing inclined plate 14 is fixedly installed at the end of the connecting plate 13 that is far away from the motion plate 12. The pressing inclined plate 14 is located outside the docking plate 7.
[0034] When using this laser welding liquid cooling plate, the lower liquid cooling plate 1 and the upper liquid cooling plate 2 need to be docked. Before this, the infusion pipe 4 needs to be placed in the pipe mounting groove 3 of the lower liquid cooling plate 1, so that the upper liquid cooling plate 2 can approach the lower liquid cooling plate 1. During the approach process, the two sets of docking plates 7 need to enter the interior of the two sets of docking grooves 6. During the movement of the docking plates 7, the docking grooves 6 will squeeze the extrusion inclined plate 14. After being squeezed, the extrusion inclined plate 14 will slide inside the movement groove 9. At the same time, the extrusion inclined plate 14 will drive the movement plate 12 and the connecting plate 13 to move synchronously. The movement of the connecting plate 13... The limiting block 10 is moved by the support spring 11. At this time, the limiting block 10 is inside the docking groove 6, which causes the support spring 11 to retract. After the lower liquid cooling plate 1 and the upper liquid cooling plate 2 are fully docked, the limiting block 10 will move to the outside of the docking groove 6. At this time, the retracted support spring 11 will expand and push the limiting block 10 to move. After the limiting block 10 completes its movement, part of the limiting block 10 will be located outside the movement groove 9. Thus, the limiting block 10 limits the lower liquid cooling plate 1 and the upper liquid cooling plate 2, quickly completing the docking of the liquid cooling plates and ensuring the convenience of using the liquid cooling plate.
[0035] Based on the above embodiments, such as Figures 1-7 The process of sealing the liquid cooling plate is shown in the figure.
[0036] A compression sealing structure is provided between the lower liquid cooling plate 1 and the upper liquid cooling plate 2. The sealing structure includes a sealing groove 15, which is opened on the outside of the lower liquid cooling plate 1 and the upper liquid cooling plate 2. A lower sealing element 16 and an upper sealing element 19 are provided inside the sealing groove 15. The upper sealing element 19 and the lower sealing element 16 are coupled to each other and are located inside the upper liquid cooling plate 2 and the lower liquid cooling plate 1, respectively. An inner sealing ring 17 and an outer sealing ring 18 are nested at the upper end of the lower sealing element 16.
[0037] When using this laser-welded liquid-cooled plate sealing structure, the lower seal 16 and the upper seal 19 need to be brought close to each other to complete the seal. The upper end of the lower seal 16 is concave, while the lower end of the upper seal 19 is convex. This allows the lower seal 16 and the upper seal 19 to fit tightly together when they come close to each other. Furthermore, the lower seal 16 and the upper seal 19 are aligned vertically, which causes the inner sealing ring 17 and the outer sealing ring 18 to be squeezed during the process of the lower seal 16 and the upper sealing ring 19 coming close to each other. This causes the inner sealing ring 17 and the outer sealing ring 18 to deform and seal between the lower seal 16 and the upper seal 19, thereby ensuring the sealing effect between the lower liquid-cooled plate 1 and the upper liquid-cooled plate 2 and increasing the overall practicality.
[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sealing structure for a laser welding liquid cooling plate, comprising a lower liquid cooling plate (1) and an upper liquid cooling plate (2) disposed at the upper end of the lower liquid cooling plate (1); Its features are: The lower liquid cooling plate (1) and the upper liquid cooling plate (2) are provided with pipe installation grooves (3), and the pipe installation grooves (3) are provided with infusion pipes (4), and the two ends of the infusion pipes (4) are provided with pipe joints (5). The lower liquid cooling plate (1) and the upper liquid cooling plate (2) are provided with limit installation holes (8). A quick-connection limiting structure is provided between the lower liquid cooling plate (1) and the upper liquid cooling plate (2), and a compression sealing structure is provided between the lower liquid cooling plate (1) and the upper liquid cooling plate (2).
2. The laser welding liquid-cooled plate sealing structure according to claim 1, characterized in that: The limiting structure includes a docking groove (6) and a docking plate (7), with the docking groove (6) located inside the lower liquid cooling plate (1) and the docking plate (7) fixedly installed at the lower end of the upper liquid cooling plate (2), while the docking plate (7) is located inside the docking groove (6).
3. The laser welding liquid-cooled plate sealing structure according to claim 2, characterized in that: The docking plate (7) has a motion groove (9) inside, and two sets of limiting blocks (10) are slidably installed inside the motion groove (9), and the ends of the two sets of limiting blocks (10) that are far apart from each other are arranged in an inclined structure.
4. The laser welding liquid-cooled plate sealing structure according to claim 1, characterized in that: The docking plate (7) has two sets of moving plates (12) slidably installed inside, and the two sets of moving plates (12) are slidably connected to each other. A support spring (11) is fixedly installed between the moving plate (12) and the limiting block (10).
5. The laser welding liquid-cooled plate sealing structure according to claim 4, characterized in that: A connecting plate (13) is fixedly installed at one end of the moving plate (12) away from the docking plate (7), and a pressing inclined plate (14) is fixedly installed at one end of the connecting plate (13) away from the moving plate (12), and the pressing inclined plate (14) is located outside the docking plate (7).
6. The laser welding liquid-cooled plate sealing structure according to claim 1, characterized in that: The sealing structure includes a sealing groove (15), which is located on the outside of the lower liquid cooling plate (1) and the upper liquid cooling plate (2), and the sealing groove (15) is provided with a lower sealing element (16) and an upper sealing element (19).
7. The laser welding liquid-cooled plate sealing structure according to claim 6, characterized in that: The upper seal (19) and the lower seal (16) are coupled to each other, and the upper seal (19) and the lower seal (16) are located inside the upper liquid cooling plate (2) and the lower liquid cooling plate (1) respectively. The upper end of the lower seal (16) is nested with an inner sealing ring (17) and an outer sealing ring (18).