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Circuit board test shielding box system

A circuit board and shielding box technology, which is applied in the field of circuit board testing shielding box system, can solve problems such as the inability to reflect the performance of the circuit board, and achieve the effect of accurate overall performance evaluation and exclusion of electromagnetic interference

Pending Publication Date: 2022-06-21
SHENZHEN BAITAI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing circuit board testing technology generally uses a specific test method to test the circuit board. The input signal used in this specific test method is different from the input signal in use of the circuit board, and the performance of the circuit board can only be tested from the side. For evaluation, it cannot reflect the overall performance of the board

Method used

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  • Circuit board test shielding box system
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Embodiment Construction

[0043] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0044] like Figure 1-5 As shown, the embodiment of the present invention provides a circuit board testing shielding box system, including a shielding box 1 and a test control system 2 installed on the shielding box 1;

[0045] The shielding box 1 has a built-in bed of needles test bench 11 for circuit board testing, the bed of needles test bench 11 is used to carry a circuit board, and the bed of needles test bench 11 includes an analog input for connecting input detection points on the circuit board The probe 13 and the signal receiving probe 14 for connecting the output detection point on the circuit board;

[0046]The test control system 2 is respectively connected with the...

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Abstract

The invention provides a circuit board test shielding box system. The circuit board test shielding box system comprises a shielding box and a test control system installed on the shielding box. The shielding box is internally provided with a needle bed test bench for testing the circuit board, the needle bed test bench is used for bearing the circuit board, and the needle bed test bench comprises an analog input probe used for being connected with an input detection point on the circuit board and a signal receiving probe used for being connected with an output detection point on the circuit board; the test control system is respectively connected with the analog input probe and the signal receiving probe, and the test control system is used for providing an input signal for the circuit board through the analog input probe, receiving an output signal of the circuit board through the signal receiving probe and carrying out test judgment. According to the invention, external electromagnetic interference can be eliminated, and a mode of simulating an input signal in use of the circuit board is adopted during circuit board test, so that the test adapts to the use mode of the circuit board, the performance of the circuit board is truly presented, and the evaluation of the overall performance of the circuit board is more accurate.

Description

technical field [0001] The invention relates to the technical field of circuit board testing, in particular to a circuit board testing shielding box system. Background technique [0002] Electromagnetic Interference (EMI) refers to the interference phenomenon caused by the interaction of electromagnetic waves and electronic components. Electromagnetic interference includes conducted interference and radiated interference: conducted interference refers to the coupling (interference) of a signal on one electrical network to another electrical network through a conductive medium; radiated interference refers to the interference source coupling (interference) its signal to another electrical network through space. an electrical network. In the design of PCB and its system, high-frequency signal lines, pins of integrated circuits and various types of connectors may become sources of radiation interference with antenna characteristics, that is, these can emit electromagnetic wave...

Claims

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Application Information

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IPC IPC(8): H04B17/00H05K9/00
CPCH04B17/0082H05K9/0069Y02P90/02
Inventor 方成蒋顺来肖阳彪邓隆勇胡望鸣
Owner SHENZHEN BAITAI IND CO LTD
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