一种新能源IGBT水冷板结构
By using an all-aluminum water-cooled plate structure and sealing design, the problems of low heat dissipation efficiency of embedded copper tubes and difficulty in finned sealing are solved, achieving efficient heat dissipation and sealing, which is suitable for highly integrated applications in new energy vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINING FANYUAN XINCAI TECH CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, embedded copper tube water-cooled plates have low heat dissipation efficiency, finned water-cooled plates are difficult to seal and cannot effectively handle high heat flux density, and traditional air cooling is inefficient and prone to dust accumulation.
The water-cooling cavity is formed by the top and bottom covers made of all-aluminum material. It combines a soft metal sheet sealing structure with annular protrusions and grooves, and is equipped with waterproof sealing grease and sealing rings to enhance the sealing effect. The heat transfer is improved by a flexible adhesive layer, and a continuous S-shaped cooling water flow channel is designed.
It achieves efficient heat dissipation, ensuring that the IGBT junction temperature is within a safe range, improving sealing and heat dissipation efficiency, and is suitable for highly integrated new energy vehicle environments.
Smart Images
Figure CN224521644U_ABST
Abstract
Claims
1. A new energy IGBT water cooling plate structure comprising a water cooling plate, characterized in that: The water-cooled plate includes an upper cover and a bottom cover, with a water-cooling cavity formed between the upper cover and the bottom cover. The bottom edge of the upper cover forms an annular closed upper dam, and the bottom surface of the upper dam has an annular groove. The annular groove has a pressure relief hole, which is filled with waterproof sealing grease and a plug. The top edge of the bottom cover forms a lower dam that corresponds to and fits against the upper dam. The top surface of the lower dam has an annular protrusion corresponding to the annular groove. A soft metal sheet is sandwiched between the annular protrusion and the annular groove. The lower dam also has an inlet and an outlet that connect the water-cooling cavity to the outside. The bottom cover is integrally provided with a heat dissipation fin assembly that penetrates the water-cooling cavity.
2. The new energy IGBT water cooling plate structure according to claim 1, characterized in that: Two sealing rings are provided between the upper dam and the lower dam, on both sides of the annular protrusion.
3. The new energy IGBT water cooling plate structure according to claim 1, characterized in that: A flexible adhesive layer is sandwiched between the bottom surface of the top cover and the heat dissipation fin assembly.
4. The new energy IGBT water cooling plate structure according to claim 3, characterized in that: The heat dissipation fin assembly includes a middle partition and a plurality of heat dissipation fins. One end of the middle partition is connected to the lower dam, and the other end forms a water passage gap with the lower dam. Only one end of each heat dissipation fin is connected to either the middle partition or the lower dam, thus forming a continuous S-shaped cooling water flow channel. The water inlet and water outlet are both located on the lower dam on one side connected to the middle partition, and the water inlet and water outlet are distributed on both sides of the middle partition.
5. The new energy IGBT water cooling plate structure according to claim 4, characterized in that: The outer ends of the water inlet and the water outlet are sealed with water pipe joints.