Double-layer core body of radiator
By using a double-layer core structure and argon arc welding technology, the problem of untimely heat dissipation in truck engines has been solved, improving heat dissipation efficiency and space utilization.
Patent Information
- Application Number
- CN202520319271.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The heat generated by a truck engine during operation is difficult to dissipate effectively by a single core, resulting in untimely heat dissipation and affecting engine operation.
It adopts a double-layer core structure, with the upper and lower side plates welded by argon arc welding, and harmonica tubes and fins installed in the side plates to improve heat exchange efficiency.
It achieves efficient absorption of heat generated by truck engines, preventing engine damage and reducing space occupation.
Smart Images

Figure CN223925553U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radiator technology, and in particular to a double-layer core for a radiator. Background Technology
[0002] Truck engines have high power and generate a lot of heat during operation. A single-core radiator is generally insufficient to meet the heat dissipation requirements, resulting in inadequate heat dissipation and affecting engine operation. Utility Model Content
[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.
[0004] The present invention adopts the following technical solution: a double-layer core of a radiator, comprising an upper plate and a lower plate, a side plate fixedly connected between the upper plate and the lower plate, a connecting end fixedly installed at the front and rear edges of the upper plate and the lower plate, a harmonica tube fixedly installed inside the side plate, and fins fixedly installed between the harmonica tubes.
[0005] Preferably, the rear ends of the upper and lower side plates are provided with full solder joints when connected to other cores.
[0006] Preferably, a welding point is provided between the connecting ends.
[0007] Preferably, the fins are continuously wavy.
[0008] Preferably, the harmonica tube and fins are arranged sequentially between the side plates.
[0009] Preferably, the weld joint is formed by argon arc welding.
[0010] Preferably, the upper and lower side plates are arranged side by side.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] In this invention, by setting a double-layer core structure, a large amount of heat generated by the truck engine can be absorbed efficiently, preventing engine damage, while also reducing space requirements. Attached Figure Description
[0013] Figure 1 This utility model provides a schematic diagram of a double-layer core for a radiator;
[0014] Figure 2 This utility model provides a top view of a double-layer core for a radiator;
[0015] Figure 3 This utility model provides a side view of a double-layer core of a radiator;
[0016] Figure 4 This utility model proposes a double-layer core for a heat sink. Figure 1 Enlarged view of point A in the middle;
[0017] Figure 5 This utility model proposes a double-layer core for a heat sink. Figure 3 Enlarged diagram of point B in the middle.
[0018] Legend:
[0019] 1. Top plate; 2. Bottom plate; 3. Side plate; 4. Full weld point; 5. Connecting end; 6. Welding point; 7. Harmonica tube; 8. Fin. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1
[0023] Please see Figure 1-5 This utility model provides a technical solution: a double-layer core for a heat sink, comprising an upper plate 1 and a lower plate 2, with a side plate 3 fixedly connected between the upper plate 1 and the lower plate 2. Connecting ends 5 are fixedly installed at the front and rear edges of both the upper plate 1 and the lower plate 2. Harmonica tubes 7 are fixedly installed inside the side plate 3, and fins 8 are fixedly installed between the harmonica tubes 7. The main function of the fins is to increase the heat dissipation area, thereby improving heat exchange efficiency. The fins can be manufactured using different methods, such as high-frequency resistance welding and brazing, to meet different industrial needs.
[0024] Example 2
[0025] Please see Figure 1-5When the rear ends of the upper plate 1 and lower plate 2 are connected to other core bodies, full weld points 4 are provided. Welding points 6 are provided between the connecting ends 5. The fins 8 are continuously wavy. The harmonica tube 7 and fins 8 are arranged sequentially between the side plates 3. The welding points 6 are formed by argon arc welding. During the argon arc welding process, the arc is stable, the heat is concentrated, the welding speed is fast, and the production efficiency is high. Especially for continuous welding, the efficiency of argon arc welding can be 2 to 4 times higher than that of intermittent welding. The heat input of argon arc welding is relatively low, so the heat-affected zone is small, and the stress, deformation, and cracking tendency of the workpiece are also smaller. This is especially important for precision welding that requires maintaining the dimensional accuracy and shape of the workpiece. Argon arc welding is an open arc welding, which is convenient to operate, and the observation during the welding process is clear, making it easy to adjust the welding parameters. Since argon arc welding does not produce welding slag, the weld surface after welding is smooth and neat, and there is no need to clean the slag or repair the weld. This significantly reduces the workload of subsequent grinding and repair. The weld surface after argon arc welding is smooth and flat, with an aesthetically pleasing appearance. Argon arc welding uses inert argon gas as a protective gas, which effectively isolates harmful gases in the air, such as oxygen and nitrogen, thereby reducing the oxidation loss of alloying elements and ensuring a dense weld joint without spatter. This results in a weld joint with high strength and stability. The upper plate 1 and lower plate 2 are arranged side by side.
[0026] Working principle: By argon arc welding between the upper plate 1 and the lower plate 2 through the connecting end 5, and by full welding to form welding point 6, the single-layer core can be welded together to form a double-layer core structure. The internal fins 8 and harmonica tube 7 fully absorb the heat inside the truck engine, improving heat dissipation efficiency.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A double-layer core for a heat sink, comprising an upper plate (1) and a lower plate (2), characterized in that: A side plate (3) is fixedly connected between the upper side plate (1) and the lower side plate (2). Connecting ends (5) are fixedly installed at the front and rear edges of the upper side plate (1) and the lower side plate (2). A harmonica tube (7) is fixedly installed inside the side plate (3). Fins (8) are fixedly installed between the harmonica tubes (7).
2. The double-layer core of the radiator according to claim 1, characterized in that: When the rear ends of the upper side plate (1) and the lower side plate (2) are connected to other cores, full solder joints (4) are provided.
3. The double-layer core of the radiator according to claim 1, characterized in that: Welding points (6) are provided between the connecting ends (5).
4. The double-layer core of the radiator according to claim 1, characterized in that: The fins (8) are continuous wavy.
5. The double-layer core of the radiator according to claim 1, characterized in that: The harmonica tube (7) and fins (8) are arranged sequentially between the side plates (3).
6. The double-layer core of the radiator according to claim 3, characterized in that: The welding point (6) is formed by argon arc welding.
7. The double-layer core of the radiator according to claim 1, characterized in that: The upper side plate (1) and the lower side plate (2) are arranged side by side.