An overload protection type terminal

By introducing a mounting support frame and a sliding engagement mechanism into the terminal block, the problems of insufficient overload protection and installation complexity of traditional terminal blocks are solved, enabling rapid installation and stable overload protection, reducing the risk of equipment damage and operating costs.

CN224472715UActive Publication Date: 2026-07-07DONGGUAN SENQI ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN SENQI ELECTRONICS CO LTD
Filing Date
2025-05-26
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional terminal blocks lack effective protection against circuit overload, leading to overheating and fire risks. They are also complex to install and inconvenient to disassemble, increasing installation costs and the risk of equipment damage.

Method used

A terminal block design includes a mounting support frame, an elastic transmission mechanism, and a meshing sliding mechanism. It achieves rapid installation and stable overload protection through a transmission contact rod and a meshing worm gear, and utilizes an elastic structure and a meshing rack and pinion to achieve stable clamping of the line and overload disconnection.

Benefits of technology

It enables quick and convenient installation and disassembly, improving installation efficiency, and reduces the risk of equipment damage and operating costs through stable overload protection.

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  • Figure CN224472715U_ABST
    Figure CN224472715U_ABST
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Abstract

This utility model discloses an overload-protected terminal block, relating to the field of terminal blocks. It includes a mounting support frame and a lower clamping plate. A fixed abutment frame is mounted on the upper surface of the mounting support frame, and an elastic transmission mechanism that abuts against the upper clamping plate is mounted on the inner surface of the fixed abutment frame. The elastic transmission mechanism includes a rotational stabilizing frame, and the upper clamping plate is rotatably mounted inside the rotational stabilizing frame. When connecting wires using this overload-protected terminal block, the transmission abutment rod is rotated directly, causing the fixed semi-circular rod to lift the extended hollow rod and simultaneously rotate the upper clamping plate. The connecting wire is then placed inside the lower clamping plate. Releasing the transmission abutment rod and pressing down the stabilizing spring securely clamps the connecting wire. This design makes wire installation very convenient and quick, improving installation efficiency and facilitating subsequent maintenance and disassembly.
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