High-toughness aluminum alloy heat exchange radiating tube for automobile air conditioner

By introducing a graphite inner layer, an anti-corrosion coating, and a hydrophobic coating into the aluminum alloy air conditioner heat exchanger tube, and combining it with spiral guide vanes and hollow protrusions, the problems of low heat exchange efficiency and insufficient structural toughness of existing heat exchanger tubes are solved, achieving efficient heat exchange and structural stability.

CN224103828UActive Publication Date: 2026-04-10常熟市恒泰精密金属制品有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing automotive air conditioning heat exchanger pipes have poor heat exchange efficiency and insufficient structural stability and toughness, which affects their service life.

Method used

The outer layer is made of aluminum alloy, the inner layer is made of graphite, and the surface is coated with anti-corrosion and hydrophobic coating. Combined with spiral guide vanes and hollow annular protrusions, external annular fins and arrayed heat-conducting strips, the structure strength and thermal conductivity are enhanced.

Benefits of technology

It improves the heat exchange efficiency and structural stability of the heat exchange tubes, enhances their resistance to abrasion and corrosion, and extends their service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high toughness aluminium alloy automobile air conditioner heat exchange radiating pipe, relates to the automobile air conditioner technical field, including pipe body, protruding part and fin, the outside of pipe body is integratedly fixed with protruding part, and protruding part is hollow circular ring structure, the outer wall of pipe body is fixed with fin, and the fin is annular structure, and the pipe body is fixed with the fin. A flow deflector is installed on the inner wall of the pipe body and is of a spiral structure, and a heat conduction strip is further arranged on the inner wall of the pipe body and is of a long-strip-shaped structure. According to the high-toughness aluminum alloy heat exchange radiating pipe for the automobile air conditioner, the flow deflectors are of the spiral structures and can play a flow guiding role, the hollow annular structures of the protruding parts enable the pipe body to be provided with large pipeline cavities at the protruding positions, and the radiating area can be increased; through cooperation of the flow deflectors, a heat flow medium can enter a pipeline cavity on the inner side of the protruding part more easily, heat exchange is facilitated, and the heat conduction strips evenly distributed on the inner wall of the pipe body in an array shape are made of heat conduction materials and facilitate heat transfer.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air conditioner, concretely is a high tenacity aluminum alloy automobile air conditioner heat exchange radiating pipe. BACKGROUND

[0002] The automobile air conditioning system is an important component of the vehicle internal environment control, is mainly used for adjusting the temperature, humidity and air flow in the carriage, to provide comfortable driving environment. Air conditioner heat exchange radiating pipe is an important component of automobile air conditioner, is the core heat exchange element in air conditioning system, is mainly used for high -efficient heat transfer, promotes refrigeration or heating efficiency.

[0003] The existing heat exchange radiating pipe is usually single round pipe type structure, although can carry out certain heat conduction radiating, however, the heat exchange efficiency is poor, and the structural stability and tenacity are insufficient, easy to influence its service life. UTILITY MODEL CONTENT

[0004] The utility model discloses a high tenacity aluminum alloy automobile air conditioner heat exchange radiating pipe to solve the problem in the background art.

[0005] To realize above -mentioned purpose, the utility model provides the following technical scheme: a kind of high tenacity aluminum alloy automobile air conditioner heat exchange radiating pipe, including pipe body, protruding portion and fin, the outside of the pipe body is integrally fixed with protruding portion, and protruding portion is hollow annular structure, the outer wall of the pipe body is fixed with fin, and fin is annular structure, the inner wall of the pipe body is installed with flow guide vane, and flow guide vane is spiral structure, the inner wall of the pipe body is also provided with heat conduction strip, and heat conduction strip is long strip structure, the pipe body includes graphite inner layer and aluminum alloy outer layer, the outside of the graphite inner layer is fixed with aluminum alloy outer layer.

[0006] Further, the pipe body further includes anticorrosion coating, and the outer side of the aluminum alloy outer layer is provided with anticorrosion coating.

[0007] Further, the pipe body further includes hydrophobic coating, and the inner wall of the graphite inner layer is provided with hydrophobic coating.

[0008] Further, the protruding portions are equidistantly distributed, and the pipe cavities of the protruding portions and the inner cavities of the pipe body are in communication with each other.

[0009] Further, each group of fins is located between adjacent protruding portions, and each group of fins is equidistantly provided with three fins.

[0010] Further, the pipe body is fixed with a connecting pipe at both ends, and the outer side of the connecting pipe is installed with a connecting flange.

[0011] Further, the heat-conducting strips are fixedly connected with the inner wall of the pipe body and are evenly distributed in six groups about the center line of the pipe body.

[0012] The utility model provides a high tenacity aluminum alloy automobile air conditioning heat exchange radiating pipe has the following

[0013] Advantages:

[0014] The utility model discloses a fin and deflector, the spiral structure of deflector can play the role of guiding flow, the hollow ring structure of convex portion makes the pipe body has greater pipeline cavity at the convex position, can improve the heat dissipation area, cooperate deflector makes the hot flow medium more favorably enter the pipeline cavity of convex portion inboard, is favorable to promoting heat exchange, the heat-conducting strip of the inner wall of pipe body is evenly distributed in array and is of heat-conducting material and is favorable to the transfer of heat, and the structure strength of pipe body can also be improved by cooperating deflector with heat-conducting strip, ensure that pipe wall and pipe type are stable, the most outside annular structure fin is evenly distributed between adjacent convex portion, convenient for improving the heat exchange efficiency of hot flow medium in the pipe body.

[0015] The utility model discloses a pipe body and connecting flange, the graphite inner layer is by graphite powder mixing polyvinyl alcohol fiber through extruder high temperature extrusion molding, has good abrasion resistance and anti -crack, thereby make the pipe body tenacity is better, the aluminum alloy outer layer is aluminum alloy material, the weight is lighter while the strength is higher, the setting of anticorrosive coating, hydrophobic coating can enhance the corrosion -resisting effect, the setting of pipe body both ends connecting pipe and connecting flange is convenient for the connection installation between pipe body and other external pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole external structure schematic view of the utility model discloses a kind of high tenacity aluminum alloy automobile air conditioning heat exchange radiating pipe;

[0017] Figure 2 It is pipe body internal structure schematic view of the utility model discloses a kind of high tenacity aluminum alloy automobile air conditioning heat exchange radiating pipe;

[0018] Figure 3 It is pipe body internal half cut structure schematic view of the utility model discloses a kind of high tenacity aluminum alloy automobile air conditioning heat exchange radiating pipe;

[0019] Figure 4 It is pipe body cross section structure schematic view of the utility model discloses a kind of high tenacity aluminum alloy automobile air conditioning heat exchange radiating pipe.

[0020] In the drawing: 1, pipe body;101, graphite inner layer;102, aluminum alloy outer layer;103, anticorrosive coating;104, hydrophobic coating;2, convex portion;3, fin;4, deflector;5, connecting pipe;6, connecting flange;7, heat-conducting strip. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be further described in detail below with reference to the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0022] As shown in Figure 1 and Figure 4 , a high-toughness aluminum alloy automobile air conditioner heat exchange radiating pipe, comprising a pipe body 1, a protruding part 2 and a fin 3, the pipe body 1 comprises a graphite inner layer 101 and an aluminum alloy outer layer 102, the outer side of the graphite inner layer 101 is fixed with the aluminum alloy outer layer 102, the pipe body 1 further comprises an anti-corrosion coating 103, the outer side of the aluminum alloy outer layer 102 is provided with the anti-corrosion coating 103, the pipe body 1 further comprises a hydrophobic coating 104, the inner wall of the graphite inner layer 101 is provided with the hydrophobic coating 104, both ends of the pipe body 1 are fixed with a connecting pipe 5, and the outer side of the connecting pipe 5 is installed with a connecting flange 6; the graphite inner layer 101 is formed by mixing graphite powder and polyvinyl alcohol fiber through an extruder at high temperature, has good abrasion resistance and crack resistance, so that the pipe body 1 has better toughness, the aluminum alloy outer layer 102 is made of aluminum alloy material, is lighter in weight and higher in strength, the setting of the anti-corrosion coating 103 and the hydrophobic coating 104 can enhance the corrosion resistance effect, and the setting of the connecting pipe 5 and the connecting flange 6 at both ends of the pipe body 1 facilitates the connection and installation between the pipe body 1 and other external pipes.

[0023] As shown in Figures 1-3 , the outer part of the pipe body 1 is integrally fixed with the protruding part 2, the protruding part 2 has a hollow ring structure, the protruding parts 2 are distributed at equal distances, the pipe cavities of the protruding parts 2 and the inner cavities of the pipe body 1 are in communication with each other, the outer wall of the pipe body 1 is fixed with the fin 3, the fin 3 has a ring structure, each group of fins 3 is located between adjacent protruding parts 2, each group of fins 3 is provided with three fins at equal distances, the inner wall of the pipe body 1 is installed with the guide vane 4, the guide vane 4 has a spiral structure, the inner wall of the pipe body 1 is further provided with the heat conduction strip 7, the heat conduction strip 7 has a strip structure, the heat conduction strip 7 is fixedly connected with the inner wall of the pipe body 1, and the heat conduction strip 7 is evenly distributed in six groups about the center line of the pipe body 1; the spiral structure of the guide vane 4 can play a guiding role, the hollow ring structure of the protruding part 2 makes the pipe body 1 have a large pipe cavity at the protruding position, can improve the heat dissipation area, and makes the hot flow medium more favorably enter the pipe cavity inside the protruding part 2 in cooperation with the guide vane 4, is conducive to promoting heat exchange, the heat conduction strip 7 evenly distributed in an array on the inner wall of the pipe body 1 is made of a heat conduction material and is conducive to heat transfer, the guide vane 4 cooperates with the heat conduction strip 7 to further improve the structural strength of the pipe body 1, ensures the stability of the pipe wall and the pipe type, and the fins 3 at the outermost side evenly distributed between adjacent protruding parts 2 facilitate the heat exchange efficiency of the hot flow medium inside the pipe body 1.

[0024] In summary, as shown in Figures 1-4As shown, the high-toughness aluminum alloy automobile air conditioner heat exchange radiating pipe, in use, first, the pipe body 1 can be connected and installed with other external pipes through the setting of the connecting pipe 5 and the connecting flange 6 at both ends of the pipe body 1, in use, the spiral structure of the flow guide fin 4 can play a flow guiding role, then the hollow annular structure of the protruding part 2 makes the pipe body 1 have a larger pipe cavity at the protruding position, which can improve the heat dissipation area, and the flow guide fin 4 makes the hot flow medium more beneficially enter the pipe cavity inside the protruding part 2, which is beneficial to promote heat exchange, the heat-conducting strip 7 of the array-shaped uniform distribution on the inner wall of the pipe body 1 is of a heat-conducting material and is beneficial to heat transfer, and the flow guide fin 4 cooperates with the heat-conducting strip 7 to further improve the structural strength of the pipe body 1, so as to ensure the stability of the pipe wall and the pipe type, the outermost annular structure fin 3 is uniformly distributed between adjacent protruding parts 2, which can improve the heat exchange efficiency of the hot flow medium inside the pipe body 1, wherein the graphite inner layer 101 is formed by mixing graphite powder and polyvinyl alcohol fiber through an extruder at high temperature, has good abrasion resistance and crack resistance, so that the pipe body 1 has good toughness, and the aluminum alloy outer layer 102 is of an aluminum alloy material, is light in weight and high in strength, in addition, the setting of the anticorrosion coating 103 and the hydrophobic coating 104 can enhance the corrosion resistance effect, and in this way, the use process of the high-toughness aluminum alloy automobile air conditioner heat exchange radiating pipe is completed.

[0025] The embodiments of the present application are given for the purpose of illustration and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present application and its practical application, and to enable those of ordinary skill in the art to understand the present application so as to design various embodiments with various modifications for specific use.

Claims

1. A high-toughness aluminum alloy automobile air conditioner heat exchange radiating pipe comprising a pipe body (1), a convex part (2) and a fin (3), characterized in that, The outer part of the pipe body (1) is integrally fixed with the convex part (2), and the convex part (2) is a hollow ring structure, the outer wall of the pipe body (1) is fixed with the fin (3), and the fin (3) is a ring structure, the inner wall of the pipe body (1) is installed with the guide vane (4), and the guide vane (4) is a spiral structure, the inner wall of the pipe body (1) is further provided with the heat conduction strip (7), and the heat conduction strip (7) is a long strip structure, the pipe body (1) comprises a graphite inner layer (101) and an aluminum alloy outer layer (102), the outer side of the graphite inner layer (101) is fixed with the aluminum alloy outer layer (102).

2. The high-ductility, aluminum-alloy, automotive air-conditioning heat exchange, heat-dissipating tube, as claimed in claim 1, wherein, The pipe body (1) further comprises an anticorrosion coating (103), and the outer side of the aluminum alloy outer layer (102) is provided with the anticorrosion coating (103).

3. The high-ductility, aluminum-alloy, automotive air-conditioning heat exchange, heat-dissipating tube, as claimed in claim 1, wherein The pipe body (1) further comprises a hydrophobic coating (104), and the inner wall of the graphite inner layer (101) is provided with the hydrophobic coating (104).

4. The high-ductility, aluminum-alloy, automotive air-conditioning heat exchange, heat-dissipating tube, as claimed in claim 1, wherein The convex parts (2) are equidistantly distributed, and the pipe cavities of the convex parts (2) and the inner cavities of the pipe body (1) are in communication with each other.

5. The high-ductility, aluminum-alloy, automotive air-conditioning heat exchange, heat-dissipation tube, as claimed in claim 1, wherein, Each group of the fin (3) is located between the adjacent convex parts (2), and each group of the fin (3) is equidistantly provided with three.

6. The high-ductility, aluminum-alloy, automotive air-conditioner heat exchange, heat-dissipation tube, as claimed in claim 1, wherein Both ends of the pipe body (1) are fixed with the connecting pipe (5), and the outer side of the connecting pipe (5) is installed with the connecting flange (6).

7. The high-ductility, aluminum-alloy, automotive air-conditioning heat exchange, heat-dissipation tube, as claimed in claim 1, wherein, The heat conduction strip (7) is fixedly connected with the inner wall of the pipe body (1), and the heat conduction strip (7) is uniformly distributed in six groups about the center line of the pipe body (1).