Steel-aluminum connecting piece not prone to deformation

The steel-aluminum connector, with its multi-dimensional structural design, utilizes a combination of buffer pads and anti-slip textures to solve the stress concentration problem of traditional steel-aluminum connectors under temperature changes, achieving high stability and lightweight design, making it suitable for aerospace, new energy vehicles and other fields.

CN224515582UActive Publication Date: 2026-07-17NINGBO WO RUIAO MASCH IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO WO RUIAO MASCH IND & TRADE CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional steel-aluminum connectors have a large difference in thermal expansion coefficients, which can easily lead to radial stress concentration under temperature changes, resulting in loose connections, interface slippage, or even breakage. They are difficult to meet the stability requirements under complex working conditions such as high vibration and large temperature difference.

Method used

The multi-dimensional structural design includes a hollow annular buffer pad made of silicone rubber and a steel connecting plate with anti-slip texture. The stress is dispersed through the groove structure, the buffer pad absorbs deformation energy, and combined with fasteners and elastic washers, stress relief and interface stability are achieved.

Benefits of technology

While ensuring connection strength, a lightweight design is achieved, which improves the stability and vibration resistance of steel-aluminum connectors, making them suitable for fields with stringent connection reliability requirements.

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Abstract

The utility model relates to steel aluminium connecting piece technical field especially relates to a steel aluminium connecting piece not easy to deformation, including steel aluminium connecting piece main part, the cavity inside steel aluminium connecting piece main part is provided with the detachable steel connecting plate, the contact surface of steel aluminium connecting piece main part and steel connecting plate all is provided with antiskid line, steel aluminium connecting piece main part framework presents cuboid, its inside evenly is provided with multiple groups of inner chamber, still including buffer gasket, steel aluminium connecting piece main part with steel connecting plate between is provided with the buffer gasket of hollow ring, a kind of steel aluminium connecting piece not easy to deformation of the utility model in the use process, the steel aluminium connecting piece not easy to deformation realizes stress dispersion and structure reinforcement through multidimensional structure design, overall scheme is through the depth integration of material characteristics and structure optimization, realizes lightweight design while guaranteeing connecting strength, compared with traditional steel aluminium connecting piece weight loss, realized the high stability of steel aluminium dissimilar material connecting piece, is applicable to the field of connection reliability requirement strict.
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Claims

1. A non-deformable steel-aluminum connector, comprising a steel-aluminum connector body (1), wherein a detachable steel connecting plate (2) is provided inside the cavity of the steel-aluminum connector body (1), and anti-slip textures are provided on the contact surfaces of the steel-aluminum connector body (1) and the steel connecting plate (2), wherein the steel-aluminum connector body (1) has a cuboid structure and multiple sets of internal cavities are uniformly opened inside, characterized in that: It also includes a buffer pad (3), and a hollow ring-shaped buffer pad (3) is provided between the steel-aluminum connector body (1) and the steel connecting plate (2).

2. The steel-aluminum joint of claim 1, wherein: The inner wall of the main body (1) of the steel-aluminum connector has multiple sets of threaded holes (4) through it, and the inner wall of the steel connecting plate (2) has multiple sets of connecting holes (5) through it. The connecting holes (5) and the threaded holes (4) are coaxially corresponding.

3. The steel-aluminum joint of claim 2, wherein: The contact surfaces of the steel-aluminum connector body (1) and the steel connecting plate (2) are provided with annular grooves (6). The two sets of annular grooves (6) are located at the junction of the threaded hole (4) and the connecting hole (5), respectively. The buffer pad (3) is embedded between the two sets of annular grooves (6), and the annular grooves (6) and the buffer pad (3) are matched in shape.

4. The steel-aluminum joint of claim 2, wherein: A fastening bolt (7) is installed through the inside of the connecting hole (5). The threaded column of the fastening bolt (7) is threadedly connected to the threaded hole (4). An elastic washer (8) is installed between its head end and the outer opening of the connecting hole (5).

5. The steel-aluminum joint of claim 1, wherein: The inner wall of the steel-aluminum connector body (1) is provided with heat dissipation holes (9), and multiple sets of heat dissipation holes (9) are arranged horizontally.

6. The steel-aluminum joint of claim 1, wherein: The inner wall of the steel-aluminum connector body (1) is fixedly provided with rectangular strip-shaped reinforcing ribs (10), and there are multiple sets of reinforcing ribs (10).

7. The steel-aluminum joint of claim 1, wherein: The inner wall of the steel-aluminum connector body (1) is fixedly provided with a triangular reinforcing angle (11), and there are multiple sets of reinforcing angles (11).