Water-cooled intercooler core structure
By using air flat tube assemblies to weld to the main board in the core structure of the water-cooled intercooler and using claws and grooves to form a dense weld, the problem of leakage risk at the welding position is solved, achieving the effect of efficient welding and reduced leakage risk, which is suitable for mass production.
Patent Information
- Application Number
- CN202521130693.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-06-04
AI Technical Summary
The existing water-cooled intercooler core structure has a risk of leakage at the welding positions, and the high precision requirements of the parts increase the difficulty and cost of production.
The air flat tube assembly is welded to both ends by the main board, the side plates are connected as a whole, the cover plate and the main board form a dense weld by claws and grooves, and the water chamber is formed by stamping to reduce the risk of leakage.
It improves the welding qualification rate, reduces the risk of leakage, has a simple structure, and is suitable for mass production.
Smart Images

Figure CN223894255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive intercooler technology, specifically to a water-cooled intercooler core structure. Background Technology
[0002] Water-cooled intercoolers are crucial components in the intake air thermal management system of turbocharged engines, reducing intake air temperature. They balance the intake air temperature of turbocharged engines through liquid cooling, increasing the airflow and density entering the engine and improving engine efficiency. Water-cooled intercoolers are compact, have high heat exchange efficiency, and require less installation space and simpler piping compared to air-cooled intercoolers, saving space in the vehicle's front compartment. Existing water-cooled intercooler core structures, such as those in patent application publication number CN109441620A, use two U-shaped plates for the water-side cover. The interlocking structure, with the U-shaped plate joining at the inlet and outlet of the water-side fins, places significant demands on the precision of the parts and the welding of the product, increasing the risk of leakage to some extent. The two bends of the U-shaped plate interlocking structure are welded to the R-corner of the main board of the water-cooled intercooler. The dimensional accuracy requirements for the R-corner of the main board and the two bends of the U-shaped plate are very strict, requiring a fit clearance of ≤0.15mm. This structure increases the risk of leakage at the R-corner welding position. The water-side cover and water chamber adopt a separate structure, increasing the welding leakage points of the water-cooled intercooler product. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a water-cooled intercooler core structure. The structure is simple and easy to operate. It not only makes the welding effect of the radiator better, but also reduces the risk of leakage. It is suitable for mass production and can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a water-cooled intercooler core structure, including an air flat tube assembly, wherein the air flat tube assemblies are arranged sequentially, and each air flat tube assembly includes an air flat tube, with fins disposed between the air flat tubes. Both ends of the air flat tube assembly are connected to a main board by welding. The front and rear sides of the air flat tube assembly are respectively provided with integrally connected side plates. An upper cover plate and a lower cover plate are welded to the upper and lower surfaces of the air flat tube assembly, respectively. The upper cover plate, lower cover plate, air flat tube assembly, and main board are connected by a welded protective connection, and the upper cover plate, lower cover plate, and main board ensure that the water-side area of the air flat tube assembly is sealed. The upper and lower cover plates are respectively provided with water chambers, located diagonally on the upper and lower sides of the air flat tube assembly. The upper water chamber is connected to an outlet pipe, and the lower water chamber is connected to an inlet pipe.
[0005] Furthermore, the water chamber is integrally connected to the lower cover plate or the upper cover plate, and the water chamber is manufactured by stamping.
[0006] Furthermore, the lower cover plate and the upper cover plate have the same structure.
[0007] Furthermore, claws are provided at the four corners of both the lower and upper cover plates, and grooves corresponding to the claws are provided at the four corners of the main board.
[0008] Compared with the prior art, the beneficial effects of this utility model are: by integrating the water chamber and the cover plate into one piece, and by having the upper and lower cover plates form a dense weld seam through the claws engaging with the grooves on the main board, this structural design can increase the welding qualification rate of the product and reduce the risk of leakage at the joints of the core parts. This water-cooled intercooler core structure is simple in structure and easy to operate, which not only makes the welding effect of the radiator better, but also reduces the risk of leakage, making it suitable for mass production. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] Figure 2 This is a side view of the present invention.
[0011] Figure 3 This is a schematic cross-sectional view of the present invention.
[0012] Figure 4 This is a cross-sectional structural diagram of the present invention.
[0013] In the diagram: 1 Air flat tube assembly, 2 Main board, 3 Side plate, 4 Top cover, 5 Bottom cover, 6 Water chamber, 7 Liquid outlet pipe, 8 Liquid inlet pipe, 9 Groove, 10 Claw. Detailed Implementation
[0014] 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.
[0015] Please see Figure 1-4This utility model provides a technical solution: a water-cooled intercooler core structure, including an air flat tube assembly 1, the air flat tube assemblies 1 are arranged sequentially, and each air flat tube assembly 1 includes air flat tubes, with fins arranged between the air flat tubes. Main plates 2 are welded to both ends of the air flat tube assembly 1. Side plates 3 are integrally connected to the front and rear sides of the air flat tube assembly 1. An upper cover plate 4 and a lower cover plate 5 are welded to the upper and lower surfaces of the air flat tube assembly 1, respectively. The upper cover plate 4, lower cover plate 5, air flat tube assembly 1, and main plate 2 are connected by a welded protective connection, and the upper cover plate 4, lower cover plate 5, and main plate 2 ensure a seal in the water-side area of the air flat tube assembly 1. Water chambers 6 are respectively provided on the upper cover plate 4 and lower cover plate 5, and the two water chambers 6 are located diagonally on the upper and lower sides of the air flat tube assembly 1. The square water chamber 6 is connected to the liquid outlet pipe 7, and the lower water chamber 6 is connected to the liquid inlet pipe 8. The water chamber 6 is integrally connected to the lower cover plate 5 or the upper cover plate 4, and the water chamber 6 is processed by stamping. The lower cover plate 5 and the upper cover plate 4 have the same structure. The four corners of the lower cover plate 5 and the upper cover plate 4 are provided with claws 10, and the four corners of the main board 2 are provided with grooves 9 that correspond to the claws 10. The water chamber 6 is integrally connected to the cover plate, and the upper cover plate 4 and the lower cover plate 5 form a dense weld by the cooperation of the claws 10 and the grooves 9 on the main board 2. This structural design can increase the welding qualification rate of the product and reduce the leakage risk at the joint of the core parts. This water-cooled intercooler core structure is simple in structure and easy to operate. It not only makes the welding effect of the radiator better, but also reduces the risk of leakage, and is suitable for mass production.
[0016] In use: The water chamber 6 is integrated with the cover plate and connected as a whole. The upper cover plate 4 and the lower cover plate 5 are connected to the groove 9 on the main board 2 through the claw 10 to form a dense weld. During operation, the displaced liquid enters the gap inside the air flat tube assembly 1 from the liquid inlet pipe 8. After heat exchange, it is discharged from the liquid outlet pipe 7 above.
[0017] 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 water-cooled intercooler core structure, comprising an air flat tube assembly (1), characterized in that: The air flat tube assembly (1) is arranged in sequence, and the air flat tube assembly (1) includes air flat tubes, and fins are provided between the air flat tubes. The two ends of the air flat tube assembly (1) are connected by welding to the main board (2). The front and rear sides of the air flat tube assembly (1) are respectively provided with integrally connected side plates (3). The upper and lower surfaces of the air flat tube assembly (1) are respectively welded with an upper cover plate (4) and a lower cover plate (5). The upper cover plate (4), the lower cover plate (5), the air flat tube assembly (1) and the main board (2) are connected by welding to form a protective connection. The upper cover plate (4), the lower cover plate (5) and the main board (2) ensure that the water side area of the air flat tube assembly (1) is sealed. The upper cover plate (4) and the lower cover plate (5) are respectively provided with water chambers (6). The two water chambers (6) are located at the diagonal positions on the upper and lower sides of the air flat tube assembly (1). The upper water chamber (6) is connected to the liquid outlet pipe (7), and the lower water chamber (6) is connected to the liquid inlet pipe (8).
2. The water-cooled intercooler core structure according to claim 1, characterized in that: The water chamber (6) is integrally connected with the lower cover plate (5) or the upper cover plate (4), and the water chamber (6) is processed by stamping.
3. The water-cooled intercooler core structure according to claim 1, characterized in that: The lower cover plate (5) and the upper cover plate (4) have the same structure.
4. The water-cooled intercooler core structure according to claim 1, characterized in that: The lower cover plate (5) and the upper cover plate (4) are provided with claws (10) at their four corners, and the main board (2) is provided with grooves (9) at its four corners that are engaged with the claws (10).
Citation Information
Patent Citations
Water-cooled intercooler assembly
CN109441620A