Liquid cooling plate structure convenient to process
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FRD SCI & TECH (JIANGSU) CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-21
AI Technical Summary
The existing assembly method of liquid cooling plates results in a low welding rate. After brazing, the stamping and trimming can easily cause the edges of the cold plate to collapse, affecting the product qualification rate and production efficiency.
Trimming lines are set around the outer perimeter of the flow channel plate of the liquid cooling plate, and through-hole vents are opened outside the trimming lines to optimize the hole diameter and spacing to improve welding quality.
It improved the brazing bonding rate, reduced the risk of post-brazing edge concavity, increased product qualification rate and production efficiency, and reduced testing costs.
Smart Images

Figure CN224534608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid cooling plate technology, and in particular to a liquid cooling plate structure that is easy to process. Background Technology
[0002] As the market demand for liquid-cooled plates in the new energy industry increases, the requirements for the assembly methods of liquid-cooled plates and housings are becoming more stringent. Currently, the most commonly used assembly method is friction stir welding. Friction stir welding has high requirements for the external dimensions of the liquid-cooled plate. If the precision of the cold plate after brazing does not meet the requirements, it is necessary to add post-brazing stamping and trimming. However, the brazing weld rate can only be guaranteed to be 80%. If the post-brazing stamping and trimming extends to the incompletely welded part of the liquid-cooled plate, the edge of the cold plate will collapse, causing the cold plate to be scrapped. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a liquid cooling plate structure that is easy to process in order to solve the above-mentioned problems.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is: a liquid cooling plate structure that is easy to process, including a flow channel plate, wherein a trimming line is provided around the outer periphery of the flow channel plate, and an exhaust hole penetrating the flow channel plate is opened outside the trimming line.
[0005] As a preferred embodiment of this utility model, the exhaust holes are opened at equal intervals along the outer side of the trimming line.
[0006] As a preferred embodiment of this utility model, the distance between the center point of the exhaust hole and the trimming line is 2-3mm.
[0007] As a preferred embodiment of this utility model, the diameter of the exhaust hole is 5-7mm, and the distance between adjacent exhaust holes is 80-120mm.
[0008] As a preferred embodiment of this invention, a flat plate that matches the flow channel plate is also included.
[0009] As a preferred embodiment of this utility model, a water head is brazed on the underside of the flat plate.
[0010] Because this utility model adopts such a structure, it has the following beneficial effects: 1. By increasing the number of vent holes, the number of incomplete brazing welds can be reduced, the brazing weld ratio can be increased, and the risk of edge depression after brazing can be reduced. 2. The trimming lines on the flow channel plate can improve the welding rate at the welding trimming point, thereby reducing the collapse caused by post-weld stamping trimming and improving the product qualification rate. Attached Figure Description
[0011] Figure 1This is a front view of a liquid cooling plate structure that is easy to process according to this utility model.
[0012] Figure 2 This is a schematic diagram of the liquid cooling plate after trimming.
[0013] In the diagram: 1 is the water head, 2 is the flat plate, 3 is the flow channel plate, 4 is the vent, 5 is the trimming line, 6 is the liquid cooling plate, and 7 is the trimming waste. Detailed Implementation
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0015] like Figures 1-2 As shown, this utility model discloses a liquid cooling plate structure that is easy to process, including a flow channel plate 3. A trimming line 5 is provided around the outer periphery of the flow channel plate 3, and an vent 4 penetrating the flow channel plate 3 is opened on the outer side of the trimming line 5. Adding the vent 4 increases the welding rate at the trimming point to over 99%, requiring only random sampling of products, thus improving production efficiency and reducing costs. Without the vent 4, post-weld trimming results in edge collapse that cannot be repaired, leading to a lower product qualification rate. Without the vent 4, the welding rate is only 80%, requiring additional inspection to ensure product qualification. Conventional inspection methods cannot detect welding defects, necessitating X-ray inspection, which is inefficient and results in a higher product yield.
[0016] Furthermore, in this invention, the vent holes 4 are evenly spaced along the outer side of the trimming line 5, and the distance between the center point of the vent hole 4 and the trimming line 5 is 2-3 mm. A narrower trimming line 5 can avoid wasting raw materials during production and improve economic efficiency.
[0017] Furthermore, in this invention, the diameter of the exhaust hole 4 is 5-7 mm, preferably 6 mm; the spacing between adjacent exhaust holes 4 is 80-120 mm, preferably 100 mm. Adjusting the hole diameter and spacing according to production needs can improve the yield rate.
[0018] Furthermore, this invention also includes a flat plate 2 that matches the flow channel plate 3, with a water head 1 brazed to its lower side. The flat plate 2 provides support for the flow channel plate 3 and also serves to connect the flow channel plate 3 and the water head 1.
[0019] In one application scenario, the specific steps of this utility model are as follows: Step 1: A vent hole 4 with a diameter of 6.0 mm is made by stamping 2-3 mm around the outer edge of the trim line 5 of the flow channel plate 3, with a spacing of about 100 mm between adjacent holes. Step two, then assemble and braze the water head 1, plate 2 and flow channel plate 3; Step 3: After brazing, the liquid cooling plate 6 and the trimming waste 7 are separated by stamping.
[0020] The description and application of this utility model herein are illustrative and not intended to limit the scope of the utility model to the embodiments described above. Variations and modifications of the embodiments disclosed herein are possible, and practical substitutions and equivalent components of the embodiments are well known to those skilled in the art. It will be apparent to those skilled in the art that this utility model can be implemented in other forms, structures, arrangements, proportions, and with other elements, materials, and components without departing from the spirit or essential characteristics of the utility model. Other variations and modifications can be made to the embodiments disclosed herein without departing from the spirit or essential characteristics of the utility model.
Claims
1. A liquid-cooled plate structure that is easy to process, characterized in that: Includes a flow channel plate (3), with a trimming line (5) around the outer periphery of the flow channel plate (3), and an exhaust hole (4) through the flow channel plate (3) on the outer side of the trimming line (5).
2. The liquid-cooled plate structure for easy processing according to claim 1, characterized in that: The exhaust holes (4) are opened at equal intervals along the outer side of the trimming line (5).
3. A liquid-cooled plate structure that is easy to process according to any one of claims 1 or 2, characterized in that: The distance between the center point of the vent (4) and the trimming line (5) is 2-3 mm.
4. The easily processed liquid-cooled plate structure according to claim 1, characterized in that: The diameter of the exhaust hole (4) is 5-7mm, and the distance between adjacent exhaust holes (4) is 80-120mm.
5. The liquid-cooled plate structure for easy processing according to claim 1, characterized in that: It also includes a flat plate (2) that matches the flow channel plate (3).
6. The liquid-cooled plate structure for easy processing according to claim 5, characterized in that: The plate (2) has a water head (1) brazed on its lower side.