A current test adapter box

By adopting a double-layer shielding structure and insulation treatment in the current test adapter box, the problem of poor electrostatic shielding effect of relying solely on the shell in the prior art is solved, and higher electrical reliability and signal shielding effect are achieved.

CN112490804BActive Publication Date: 2025-03-28AVIC SHENYANG XINGHUA AREO ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202011257784.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-11-12
Publication Date
2025-03-28
Estimated Expiration
2040-11-12

AI Technical Summary

Technical Problem

Existing test equipment solves the problem of signal accuracy, stability and safety of the equipment under test through electrostatic shielding of the shell, but the electrostatic shielding effect achieved by the shell alone is not reliable enough, resulting in poor signal shielding effect.

Method used

A current test adapter box is designed, using switching power supply, wires, shielded terminals and insulating sheaths. By sandwiching a sealing gasket and an insulating sleeve between the box and the shielded terminal, a U-shaped sealing gasket is sandwiched between the box and the first socket, and an insulating rubber pad is sandwiched between the box and the second socket, forming a double-layer shielding structure.

Benefits of technology

It achieves higher electrical reliability, safety and signal shielding effects, improving the accuracy, stability and safety of the test equipment.

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Abstract

The present invention relates to the technical field of test adapter boxes, a current test adapter box, comprising a box body, a switching power supply, a shielding terminal, a first socket, a second socket, a U-shaped sealing pad, an insulating sleeve and an insulating rubber pad, the box body comprising a hollow metal shell with an open top and a top panel, the switching power supply is fixed on the bottom surface of the shell, the first socket is fixed on the top panel, a U-shaped sealing pad is arranged between the first socket and the box body, the shielding terminal, the second socket, and an input interface of the switching power supply are respectively fixed on three side walls of the box body, an insulating sleeve is arranged between the shielding terminal and the box body, an insulating rubber pad is arranged between the second socket and the box body, the switching power supply is used to convert AC voltage into DC voltage, the second socket is used to output DC voltage and receive current signals, the first socket is used to output current signals received by the second socket, and the present invention has the advantage of good shielding effect.
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