A lightweight, corrosion-resistant aluminum alloy flat tube

By designing microchannels and through holes in aluminum alloy flat tubes, combining weight reduction grooves and anti-corrosion layers, the problems of weight increase and welding joint corrosion of existing aluminum flat tubes are solved, achieving good heat dissipation and overall lightweighting.

CN222733429UActive Publication Date: 2025-04-08LONGQUAN SHUANGZHEN ALUMINUM
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Patent Information

Application Number
CN202420845071.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-23
Publication Date
2025-04-08
Estimated Expiration
2034-04-23

AI Technical Summary

Technical Problem

The existing aluminum flat tubes for automotive condensers need to be welded during use, resulting in increased weight and corrosion of the welding joints, affecting performance.

Method used

Design a lightweight corrosion-resistant aluminum alloy flat tube. Microchannels and through holes are distributed inside the aluminum flat tube. A partition is formed between the through holes. Weight reduction grooves and anti-corrosion layer are used to ensure heat dissipation and corrosion resistance.

Benefits of technology

By reducing welding needs and avoiding welding joint corrosion, better heat dissipation and overall lightweighting are achieved, and the service life is extended.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a lightweight, corrosion-resistant aluminum alloy flat tube, comprising a flat tube, wherein: a plurality of microchannels are evenly distributed and opened inside from one end to the other end of the aluminum flat tube, and a plurality of through holes are evenly distributed and opened on both sides of the surface of the aluminum flat tube, and a partition is formed between two adjacent through holes; the through holes are not connected to the microchannels; the overall arrangement of the utility model can make the aluminum flat tube itself have good heat dissipation when used as a condenser on an automobile, so that there is no need to weld corresponding heat dissipation fins between the aluminum flat tubes, thereby avoiding the problem of easy corrosion at the welding points, and also making the overall weight lighter.
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Description

Technical Field

[0001] The utility model relates to the field of aluminum alloy flat tubes, and in particular to a lightweight, corrosion-resistant aluminum alloy flat tube. Background Art

[0002] Aluminum alloy flat tube is a flat tube made of aluminum alloy, with a flat cross section, generally with a small thickness and a large width. This flat tube is widely used in the fields of automobiles, aviation, construction, etc., mainly used to manufacture heat exchangers, radiators, oil coolers and other equipment.

[0003] However, the existing aluminum flat tubes for automobile condensers need to be welded with corresponding heat dissipation fins again during use, which not only increases the overall weight, but also easily causes corrosion at the welding points during long-term use, thereby affecting the overall performance.

[0004] Therefore, it is very necessary to invent a lightweight and corrosion-resistant aluminum alloy flat tube. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a technical solution adopted by a lightweight corrosion-resistant aluminum alloy flat tube: a lightweight corrosion-resistant aluminum alloy flat tube, comprising an aluminum flat tube, wherein: a plurality of microchannels are evenly distributed and penetrated from one end to the other end of the aluminum flat tube, and a plurality of through holes are evenly distributed and penetrated on both sides of the surface of the aluminum flat tube, and a partition is formed between two adjacent through holes; the through holes are not connected to the microchannels.

[0006] Preferably, a plurality of weight-reducing grooves 1 are evenly distributed at the center of the upper surface and the lower surface of the aluminum flat tube, and a plurality of weight-reducing grooves 2 are evenly distributed on both sides of the aluminum flat tube, and the lengths of the weight-reducing grooves 1 and 2 are the same as the length of the aluminum flat tube.

[0007] Preferably, the microchannels of the aluminum flat tube and the outer surface of the aluminum flat tube are coated with an anti-corrosion layer.

[0008] Preferably, the interior of the through hole is coated with an antistatic layer.

[0009] Compared with the prior art, the advantages of the utility model are:

[0010] The overall arrangement of the utility model can make the aluminum flat tube itself have good heat dissipation when used as a condenser on a car, so there is no need to weld corresponding heat dissipation fins between the aluminum flat tubes, thereby avoiding the problem of easy corrosion at the welding points, and also making the whole more lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a partial enlarged structural schematic diagram of point A of the utility model.

[0013] In the figure:

[0014] Aluminum flat tube 1, microchannel 2, through hole 3, partition 4, weight reduction groove 1 5, weight reduction groove 2 6. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0016] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Embodiment 1

[0019] Reference Figure 1-2A lightweight, corrosion-resistant aluminum alloy flat tube comprises an aluminum flat tube 1, wherein: a plurality of microchannels 2 are evenly distributed and penetrated from one end to the other end of the aluminum flat tube 1 so that coolant can flow in the aluminum flat tube 1, and a plurality of through holes 3 are evenly distributed and penetrated on both sides of the surface of the aluminum flat tube 1. By setting the through holes 3, the overall weight can be reduced, and air circulation is facilitated, so that the aluminum flat tube 1 itself has a better heat dissipation capacity. A partition 4 is formed between two adjacent through holes 3, and the partition 4 can increase the contact area with the air, thereby improving the heat dissipation efficiency of the aluminum flat tube 1; the through holes 3 are not connected to the microchannels 2.

[0020] A plurality of weight-reducing grooves 5 are evenly distributed at the center of the upper surface and the lower surface of the aluminum flat tube 1, and a plurality of weight-reducing grooves 6 are evenly distributed on both sides of the aluminum flat tube 1. The weight-reducing grooves 1 5 and 2 6 are arranged to reduce the weight of the aluminum flat tube 1, and at the same time, the contact area with the air can be increased to improve the heat dissipation capacity of the aluminum flat tube 1 itself. The lengths of the weight-reducing grooves 1 5 and 2 6 are the same as the length of the aluminum flat tube 1.

[0021] The microchannel 2 of the aluminum flat tube 1 and the outer surface of the aluminum flat tube 1 are coated with an anti-corrosion layer. The anti-corrosion layer adopts existing technologies, such as anodizing, spraying anti-corrosion coatings, etc., to form a protective layer to improve its resistance to harsh environments. Since it is a very mature technology, it will not be described in detail here.

[0022] The inside of the through hole 3 is coated with an antistatic layer. Through the provision of the antistatic layer, impurities are accumulated in the through hole 3 so as to reduce the generation of static electricity on the aluminum flat tube 1, thereby improving the overall safety.

[0023] In this embodiment, when used as a flat tube of a car's condenser, the aluminum flat tubes 1 are arranged in double rows and evenly spaced, and the through holes 3 are aligned with the direction of the cooling fan on the water tank, so that during the driving of the car, air can circulate in the through holes 3, thereby allowing the air to fully exchange heat with the aluminum flat tubes 1, so that the aluminum flat tubes 1 can achieve a good heat dissipation effect.

[0024] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A lightweight, corrosion-resistant aluminum alloy flat tube, characterized by: It comprises an aluminum flat tube (1), wherein: a plurality of microchannels (2) are evenly distributed and penetrated from one end to the other end of the aluminum flat tube (1), and a plurality of through holes (3) are evenly distributed and penetrated on both sides of the surface of the aluminum flat tube (1), and a partition (4) is formed between two adjacent through holes (3); and the through holes (3) are not connected to the microchannels (2).

2. The lightweight, corrosion-resistant aluminum alloy flat tube according to claim 1, characterized in that: A plurality of weight-reducing grooves (5) are evenly distributed at the center of the upper surface and the lower surface of the aluminum flat tube (1), and a plurality of weight-reducing grooves (6) are evenly distributed at both sides of the aluminum flat tube (1).

3. The lightweight, corrosion-resistant aluminum alloy flat tube according to claim 1, characterized in that: The microchannel (2) of the aluminum flat tube (1) and the outer surface of the aluminum flat tube (1) are both coated with an anti-corrosion layer.

4. The lightweight, corrosion-resistant aluminum alloy flat tube according to claim 1, characterized in that: The interior of the through hole (3) is coated with an antistatic layer.