一种适配多脚型保险丝调节的测试治具
By designing an adjustable mechanical fuse clamping and fixing device, direct circuit testing of multi-pin fuses was achieved, solving the compatibility and reliability problems of traditional test fixtures, improving testing accuracy and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HUADE ELECTRONIC CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional fuse testing fixtures are incompatible with fuses of different pin types and pitches, and their reliance on PCB boards leads to long development cycles, high maintenance costs, and poor contact reliability.
The fuse clamping and fixing device adopts an adjustable mechanical structure, and achieves direct circuit testing through the fuse clamping and fixing device and current module on the base, avoiding reliance on the PCB board.
It achieves compatibility with multi-pin fuses, reduces development and maintenance costs, improves testing accuracy and reliability, and has a testing error of less than ±1%.
Smart Images
Figure CN224518943U_ABST
Abstract
Claims
1. A test fixture adapted for adjusting multi-pin type fuses, characterized in that: The device includes a base (1), a fuse clamping and fixing device (2), and a current module (3). A set of fuse clamping and fixing devices (2) with adjustable relative spacing are installed on the base (1). The fuse clamping and fixing device (2) is connected to the test current through the current module (3). The fuse clamping and fixing device (2) includes a fixing part (21), a clamping part (22), a fixing screw (23), and a locking bolt (24). The fixing part (21) is provided with an elongated hole (201) for adjusting its installation position. The fixing screw (23) After passing through the elongated hole (201), it is locked onto the base (1). Two fixing parts (21) are vertically opposite each other and are equipped with clamping parts (22) that can adjust the tightness. At least two opposite screw holes (202) are provided on the two fixing parts (21) and the clamping parts (22). After the locking bolt (24) passes through the screw holes (202), the fixing parts (21) and the clamping parts (22) are connected and fixed. The fixing parts (21) and the clamping parts (22) are made of conductive material. The fixing parts (21) and the clamping parts (22) are used to clamp and fix the fuse pin to realize the circuit load.
2. The test fixture of claim 1, wherein: the plurality of pins are arranged in a plurality of pin groups; and the plurality of pin groups are arranged in a plurality of pin groups rows. The base (1) is provided with a row of symmetrical unit screw holes (10) for installing fuse clamping and fixing devices (2).
3. The test fixture of claim 1, wherein: the plurality of pins are arranged in a plurality of pin groups; and the plurality of pin groups are arranged in a plurality of pin groups rows. The fastener (21) consists of a bottom horizontal slide rail (211) and a vertical mounting part (212). An elongated hole (201) is provided on the bottom horizontal slide rail (211), and a fixing screw (23) passes through the elongated hole (201) and is locked into the unit screw hole (10) of the base (1).
4. The test fixture for adjusting multi-pin type fuses according to claim 1, characterized in that: The fastener (21) and clamp (22) are made of copper.
5. The test fixture of claim 1, wherein: the plurality of pins are adapted to be connected to a plurality of fuse links of different amperage ratings; and the plurality of pins are adapted to be connected to a plurality of fuse links of different lengths. The current module (3) is fixedly connected to the fixing part (21). The current module (3) is fixed by the fixing screw (23) of the fuse clamp fixing device (2). The current module (3) uses wires or copper busbars to realize the power supply and direct testing.