A hole-plugging type guide tube riveting structure

Abstract

The utility model discloses a kind of blocked hole type guide pipe riveting structure, belong to riveting connection technical field, to solve the problem of traditional circular pipe fitting and pressboard riveting poor stability, low precision and low function integration degree. The structure includes profiled aluminium joint pressboard, circular collecting pipe, blocked hole guide pipe and through-hole guide pipe;Circular collecting pipe wall is equipped with blocked hole structure and through-hole structure, profiled aluminium joint pressboard is opened with first and second coaxial circular holes, and its side towards circular collecting pipe is equipped with arc-shaped lamination surface, realize close lamination;Blocked hole, through-hole guide pipe are respectively equipped with corresponding hole position, and with hole position interference fit, two ends extend to pressboard outside and collecting pipe inside, and then form flared portion by riveting, realize the firm fixation of two, the structure is through lamination, interference fit and flared limit, improve connection stability and precision, integrate blocked hole and through-hole function simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of condenser technology, specifically to a plug-hole guide tube riveting structure. Background Technology

[0002] With the rapid development of the automobile industry, consumers' demands for automobile performance and comfort continue to rise. As the core heat dissipation component of the air conditioning system, the technological development of automobile condensers needs to simultaneously meet the performance indicators of "low energy consumption and high environmental protection" and the production needs of "high production capacity and low cost".

[0003] Currently, most mainstream automotive condensers adopt a circular manifold structure. The advantages of this structure lie in its strong mold versatility, lower tooling development costs, and ability to quickly switch production between different condenser models. However, this structure has significant drawbacks: the connection between the manifold and the connector plate relies on argon arc welding for sealing and fixing. On the one hand, argon arc welding requires specialized operators and equipment, increasing labor costs and equipment investment. Furthermore, post-weld inspection and repair welding are necessary, extending the production cycle and reducing efficiency. On the other hand, circular manifolds are mostly thin-walled aluminum alloy tubes, which are prone to breakdown during argon arc welding due to improper current parameter control, uneven tube wall thickness, or operational errors, directly causing product scrap. Statistics show that the product qualification rate due to this type of welding defect is only about 70%, which is insufficient to meet the quality and cost control requirements of large-scale production. Therefore, there is an urgent need for a manifold and connector plate connection structure that does not require argon arc welding, has a simple process, and provides a reliable connection, to address the pain points of existing technologies. Therefore, a plug-hole guide tube riveting structure needs to be designed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the defect of relying on argon arc welding to connect the circular manifold and the profile aluminum connector plate in existing automotive condensers, and to provide a plug-type guide tube riveting structure. By replacing welding with riveting, the process is simplified, the cost is reduced, and the product qualification rate and structural stability are improved, thus solving the problems of the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plugging-hole guide tube riveting structure, comprising a profile aluminum connector pressure plate, a circular manifold, a plugging-hole guide tube, and a through-hole guide tube. The circular manifold has a plugging-hole structure and a through-hole structure on its wall. The profile aluminum connector pressure plate has a first circular hole and a second circular hole coaxially corresponding to the plugging-hole structure and the through-hole structure. The profile aluminum connector pressure plate is fitted to the circular manifold, with the circular hole structure aligned with the through-hole. The plugging-hole guide tube passes sequentially through the first circular hole and the plugging-hole structure, and the through-hole guide tube passes sequentially through the second circular hole and the through-hole structure. The two ends of the plugging-hole guide tube and the through-hole guide tube are riveted to the outside of the circular manifold and the outside of the profile aluminum connector pressure plate, respectively, forming a fixed connection between the profile aluminum connector pressure plate and the circular manifold.

[0006] A further improvement of this utility model is that the outer diameter of the plugging guide tube is interference-fitted with both the inner diameter of the first circular hole structure and the inner diameter of the plugging structure.

[0007] A further improvement of this utility model is that the outer diameter of the through-hole guide tube and the inner diameter of the second circular hole structure and the inner diameter of the through-hole structure are both interference fits.

[0008] A further improvement of this utility model is that the profile aluminum connector pressure plate has an arc-shaped fitting surface on the side near the circular manifold.

[0009] A further improvement of this utility model is that the curvature of the arc-shaped contact surface is consistent with the curvature of the outer wall of the circular manifold.

[0010] A further improvement of this utility model is that the circular manifold is made of aluminum alloy tubing, and the profile aluminum connector pressure plate is an integrally formed aluminum alloy component.

[0011] A further improvement of this utility model is that: the two ends of the plugging guide tube are formed into flared structures after riveting treatment, and the outer diameter of the flared structure of the plugging guide tube is larger than the inner diameter of the first circular hole structure and the inner diameter of the plugging structure.

[0012] A further improvement of this utility model is that: the two ends of the through-hole guide tube are formed into flared structures after riveting treatment, and the outer diameter of the flared structure of the through-hole guide tube is larger than the inner diameter of the second circular hole structure and the inner diameter of the through hole structure.

[0013] 1. High connection stability: The triple structure design of seamless arc-shaped mating surface, interference fit between guide tube and hole, and axial limiting at both ends completely avoids relative loosening between pressure plate and manifold, and the connection reliability is significantly better than traditional riveting.

[0014] 2. High assembly precision: The coaxial hole design matches the curvature of the arc-shaped mating surface, ensuring precise alignment of the holes during assembly without repeated adjustments, reducing assembly errors and improving production efficiency.

[0015] 3. Functional integration: Through the differentiated design of the plugging guide tube and the through-hole guide tube, the plugging and through-hole functions can be realized simultaneously in a single riveting assembly, without the need for additional components, simplifying the structure and reducing costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the split structure of this utility model; Figure 3 This is a partial structural schematic diagram of the present invention.

[0017] Figure descriptions: 1. Profile aluminum connector pressure plate, 2. Circular manifold, 3. Hole-plugging guide tube, 4. Through-hole guide tube, 5. Hole-plugging structure, 6. Through-hole structure, 7. First circular hole, 8. Second circular hole, 9. Arc-shaped mating surface, 10. Hole-plugging flaring structure, 11. Through-hole flaring structure. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] This embodiment discloses a plug-hole guide tube riveting structure, including a profile aluminum connector plate 1, a circular manifold 2, a plug-hole guide tube 3, and a through-hole guide tube 4. The circular manifold 2 has a plug-hole structure 5 and a through-hole structure 6 on its wall, which are spaced apart along the axial direction of the circular manifold 2 and are both circular holes that penetrate the pipe wall. They are used to cooperate with the plug-hole guide tube 3 to achieve sealing and with the through-hole guide tube 4 to achieve flow, respectively, and are the basic structure for functional partitioning. The profile aluminum connector plate 1 has a first circular hole 7 and a second circular hole 8 that are coaxial with the plug-hole structure 5 and the through-hole structure 6. The axis of the first circular hole 7 is completely coincident with the axis of the plug-hole structure 5, and the axis of the second circular hole 8 is completely coincident with the axis of the through-hole structure 6, providing a structural basis for the accurate insertion of the guide tube and avoiding assembly errors caused by hole position misalignment.

[0020] The profile aluminum connector pressure plate 1 is fitted to the circular manifold 2. The first circular hole 7 and the second circular hole 8 are aligned with the plugging structure 5 and the through-hole structure 6, respectively. The plugging guide tube 3 passes through the first circular hole 7 and the plugging structure 5 in sequence, and the through-hole guide tube 4 passes through the second circular hole 8 and the through-hole structure 6 in sequence. The two ends of the plugging guide tube 3 and the through-hole guide tube 4 are riveted on the outside of the circular manifold 2 and the outside of the profile aluminum connector pressure plate 1, respectively, to form a fixed connection between the profile aluminum connector pressure plate 1 and the circular manifold 2. The outer diameter of the plugging guide tube 3 is interference-fitted with the inner diameter of the first circular hole 7 and the inner diameter of the plugging structure 5. The outer diameter of the through-hole guide tube 4 is interference-fitted with the inner diameter of the second circular hole 8 and the inner diameter of the through-hole structure 6. The interference fit can eliminate the gap between the guide tube and the hole wall, which not only improves the tightness of the connection, but also preliminarily fixes the relative position of the profile aluminum connector pressure plate 1 and the circular manifold 2 before riveting, preventing assembly misalignment.

[0021] The profile aluminum connector plate 1 has an arc-shaped contact surface 9 on the side near the circular manifold 2. The curvature of the arc-shaped contact surface 9 is consistent with the curvature of the outer wall of the circular manifold 2, and the radius of curvature of the arc-shaped contact surface 9 is exactly equal to the outer radius of the circular manifold 2. This ensures that the profile aluminum connector plate 1 and the outer wall of the circular manifold 2 are tightly fitted without gaps, thus eliminating the gap problem of traditional flat and arc surface fit from a structural perspective and improving the connection sealing and stability. The circular manifold 2 is an aluminum alloy pipe, and the profile aluminum connector plate 1 is an integrally formed aluminum alloy component.

[0022] The two ends of the plugging guide tube 3, after riveting, form a plugging flared structure 10. The outer diameter of the plugging flared structure 10 is larger than the inner diameter of the first circular hole 7 and the inner diameter of the plugging structure 5. The two ends of the through hole guide tube 4, after riveting, form a through hole flared structure 11. The outer diameter of the through hole flared structure 11 is larger than the inner diameter of the second circular hole 8 and the inner diameter of the through hole structure 6. This can rigidly limit the profile aluminum joint pressure plate 1 and the circular manifold 2 in the axial direction, preventing them from separating relative to each other.

[0023] The above are merely preferred embodiments of this utility model, but do not limit the patent scope of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model's specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A plug-hole type guide tube riveting structure, characterized in that, The device includes a profile aluminum connector pressure plate, a circular manifold, a plugging guide tube, and a through-hole guide tube. The circular manifold has a plugging structure and a through-hole structure on its wall. The profile aluminum connector pressure plate has a first circular hole and a second circular hole that are coaxially corresponding to the plugging structure and the through-hole structure. The profile aluminum connector pressure plate is fitted to the circular manifold, with the circular hole structure aligned with the through-hole. The plugging guide tube passes through the first circular hole and the plugging structure in sequence, and the through-hole guide tube passes through the second circular hole and the through-hole structure in sequence. The two ends of the plugging guide tube and the through-hole guide tube are riveted to the outside of the circular manifold and the outside of the profile aluminum connector pressure plate, respectively, to form a fixed connection between the profile aluminum connector pressure plate and the circular manifold.

2. The plug-type guide tube riveting structure according to claim 1, characterized in that: The outer diameter of the plugging guide tube is an interference fit with the inner diameter of the first circular hole and the inner diameter of the plugging structure.

3. The plugging-type guide tube riveting structure according to claim 1, characterized in that: The outer diameter of the through-hole guide tube, the inner diameter of the second circular hole, and the inner diameter of the through-hole structure are all interference fits.

4. The plugging-type guide tube riveting structure according to claim 1, characterized in that: The profile aluminum connector pressure plate has an arc-shaped fitting surface on the side near the circular manifold.

5. The plugging-type guide tube riveting structure according to claim 4, characterized in that: The curvature of the arc-shaped contact surface is consistent with the curvature of the outer wall of the circular manifold.

6. The plugging-type guide tube riveting structure according to claim 1, characterized in that: The circular manifold is made of aluminum alloy tubing, and the profile aluminum connector plate is an integrally formed aluminum alloy component.

7. The plug-type guide tube riveting structure according to claim 1, characterized in that: The two ends of the plugging guide tube are riveted to form a flared structure, and the outer diameter of the flared structure of the plugging guide tube is larger than the inner diameter of the first circular hole and the inner diameter of the plugging structure.

8. The plugging-type guide tube riveting structure according to claim 1, characterized in that: The two ends of the through-hole guide tube are riveted to form a flared structure, and the outer diameter of the flared structure of the through-hole guide tube is larger than the inner diameter of the second circular hole structure and the inner diameter of the through hole structure.

Images