Double-layer condenser
By designing a double-layer condenser, the condenser assemblies are arranged in parallel and connected to the manifold by argon arc welding, which solves the problems of poor cooling effect and large space occupation of automotive condensers in high-temperature weather, and achieves more efficient cooling and space utilization.
Patent Information
- Application Number
- CN202520319270.2
- 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
Existing automotive condensers are not effective at cooling in hot weather and take up a lot of space in the engine compartment, making it difficult to improve cooling efficiency in a limited space.
The design employs a double-layer condenser, with condenser sub-assemblies A and B arranged side by side and connected to manifolds No. 1 and No. 2 by argon arc welding to form an integral structure, thereby increasing the heat dissipation area and efficiency.
It effectively optimizes engine compartment space, improves cooling efficiency, reduces system energy consumption, and enhances heat exchange performance.
Smart Images

Figure CN223925167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of condenser technology, and in particular to a double-layer condenser. Background Technology
[0002] The automotive condenser is a key component of the car's air conditioning system. Its main function is to cool and condense the high-temperature, high-pressure gaseous refrigerant discharged from the compressor into a liquid refrigerant, thereby releasing heat. The condenser typically consists of an aluminum or copper tube-fin heat exchanger. Through heat dissipation fins, it exchanges heat between the high-temperature refrigerant and the outside air, causing it to cool and condense into a liquid state. The condenser is usually located at the front of the engine compartment, close to the engine, and is typically installed in front of the coolant tank. However, when the air conditioning is on for extended periods in hot weather, the cooling effect is poor. To achieve good cooling performance, a single-layer condenser occupies a very large surface area, resulting in a large footprint in the engine compartment and making the engine compartment space relatively cramped. 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 condenser, including a condenser core, one side of the condenser core is connected to a first manifold, and the other side is connected to a second manifold, one side of the second manifold is connected to an air inlet and a liquid outlet, the air inlet is located above the liquid outlet, the condenser core includes a condenser sub-assembly A and a condenser sub-assembly B, the condenser sub-assembly A and the condenser sub-assembly B are arranged side by side.
[0005] Preferably, a left bracket is fixedly installed on one side of the first manifold, and a right bracket is fixedly installed on one side of the second manifold.
[0006] Preferably, the condenser sub-assembly A and condenser sub-assembly B include an upper side plate and a lower side plate, with flat tubes fixedly installed on the inner sides of the upper side plate and the lower side plate, and heat dissipation fins arranged between the flat tubes.
[0007] Preferably, the first manifold and the second manifold are arranged side by side, and the first manifold and the second manifold are connected by argon arc welding.
[0008] Preferably, the surfaces of the left and right brackets are provided with mounting holes arranged in a straight line.
[0009] Preferably, a gap is left between the condenser sub-assembly A and the condenser sub-assembly B.
[0010] Preferably, the flat tube and heat dissipation fins are arranged in an upper and lower array.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] In this invention, by arranging condenser sub-assemblies A and B side by side, and connecting the No. 1 manifold and the No. 2 manifold by argon arc welding, and then welding them together in the furnace to form a whole, the space occupied in the engine compartment is reduced, effectively optimizing the space of the engine compartment and improving the cooling effect. Attached Figure Description
[0013] Figure 1 A schematic diagram of a double-layer condenser is provided for this utility model;
[0014] Figure 2 This utility model provides a top view of a double-layer condenser;
[0015] Figure 3 This utility model proposes a double-layer condenser. Figure 1 Enlarged diagram of point A in the middle.
[0016] Legend:
[0017] 1. Condenser core; 2. No. 1 manifold; 3. No. 2 manifold; 4. Left support; 5. Right support; 6. Air inlet connector; 7. Liquid outlet connector; 8. Upper side plate; 9. Lower side plate; 11. Condenser sub-assembly A; 12. Condenser sub-assembly B; 13. Flat tube; 14. Heat dissipation fins. Detailed Implementation
[0018] 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.
[0019] 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.
[0020] Example 1
[0021] Please see Figure 1-3This utility model provides a technical solution: a double-layer condenser, including a condenser core 1. One side of the condenser core 1 is connected to a first manifold 2, and the other side is connected to a second manifold 3. One of the main functions of the manifolds is to collect the high-temperature, high-pressure refrigerant liquid in the condenser. After the liquid is cooled by the condenser, it is concentrated through the manifolds, thereby further improving the heat exchange efficiency. One side of the second manifold 3 is connected to an inlet connector 6 and a liquid outlet connector 7. The manifolds are usually processed by a punching machine to form a large number of small holes on their surface. These small holes not only increase the surface area of the manifolds, but also allow the refrigerant to better exchange heat with the air during the flow process, thereby improving the heat dissipation efficiency. The design of the manifolds can effectively reduce the resistance of the refrigerant flow, thereby reducing the system's energy consumption and improving the overall heat exchange performance. The inlet connector 6 is located above the liquid outlet connector 7. The main function of the condenser's inlet connector 6 is to introduce the high-temperature, high-pressure gas from the compressor into the condenser for cooling and liquefaction. Specifically, when refrigerant vapor enters the condenser's inlet, the hot vapor flows downwards towards the condenser tube bundle. During this process, a large amount of heat is conducted to the outdoor air, causing the refrigerant to transform from a high-temperature, high-pressure vapor into a high-temperature, high-pressure liquid. The liquid outlet connector 7 is mainly used to discharge the condensed liquid from the condenser. In the refrigeration system, after the refrigerant vapor enters the condenser, it is cooled by cooling water or other cooling media inside the condenser, thus condensing into a liquid. This liquid flows out through the liquid outlet connector and is transported to the liquid receiver or other places where it is needed for further processing or use. The condenser core 1 includes condenser sub-assemblies A11 and B12, which are arranged side by side.
[0022] Example 2
[0023] Please see Figure 1-3A left bracket 4 is fixedly installed on one side of the No. 1 manifold 2, and a right bracket 5 is fixedly installed on one side of the No. 2 manifold 3. The condenser sub-assembly A11 and the condenser sub-assembly B12 include an upper plate 8 and a lower plate 9. A flat tube 13 is fixedly installed on the inner side of the upper plate 8 and the lower plate 9. The flat tube 13 is one of the core components of the condenser. It has tiny channels inside, which usually have a small hydraulic diameter, so that the contact area between the refrigerant and the tube wall is increased during the flow, thereby improving the heat exchange efficiency. In addition, the design of the flat tube 13 can further improve the heat exchange performance by increasing the number of microchannels. Heat dissipation fins 14 are arranged between the flat tubes 13. The first manifold 2 and the second manifold 3 are arranged in parallel front to back, and the first manifold 2 and the second manifold 3 are connected front to back by argon arc welding. The left support 4 and the right support 5 have mounting holes arranged in a straight line on their surfaces. There is a gap between the condenser sub-assembly A11 and the condenser sub-assembly B12. The flat tubes 13 and the heat dissipation fins 14 are arranged in an upper and lower array. The heat dissipation fins 14 can increase the heat dissipation area of the condenser, thereby accelerating the heat dissipation speed and improving the overall heat dissipation efficiency.
[0024] Working principle: Condenser sub-assembly A11 and condenser sub-assembly B12 are arranged side by side, and manifold 2 and manifold 3 are brought close to each other and connected by argon arc welding. They are then brazed in the furnace to form a whole, thus completing the assembly of the double-layer condenser.
[0025] 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 condenser, comprising a condenser core (1), characterized in that: The condenser core (1) is connected to a first manifold (2) on one side and a second manifold (3) on the other side. An air inlet (6) and a liquid outlet (7) are connected to one side of the second manifold (3). The air inlet (6) is located above the liquid outlet (7). The condenser core (1) includes a condenser sub-assembly A (11) and a condenser sub-assembly B (12). The condenser sub-assembly A (11) and the condenser sub-assembly B (12) are arranged side by side. A left bracket (4) is fixedly installed on one side of the first manifold (2), and a right bracket (5) is fixedly installed on one side of the second manifold (3). The condenser sub-assembly A (11) and condenser sub-assembly B (12) include an upper plate (8) and a lower plate (9). Flat tubes (13) are fixedly installed on the inner side of the upper plate (8) and the lower plate (9). Heat dissipation fins (14) are provided between the flat tubes (13). The first manifold (2) and the second manifold (3) are arranged in parallel front to back, and the first manifold (2) and the second manifold (3) are connected front to back by argon arc welding. The surfaces of the left bracket (4) and the right bracket (5) are provided with mounting holes arranged in a straight line. A gap is left between the condenser sub-assembly A (11) and condenser sub-assembly B (12).
2. The double-layer condenser according to claim 1, characterized in that: The flat tube (13) and heat dissipation fins (14) are arranged in an upper and lower array.