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Multi-pin plug-in component removal method for aircraft circuit board maintenance

A component and circuit board technology, applied in the field of multi-pin insertion component removal, can solve problems such as the removal of multi-pin insertion components that have not been applied, improve work efficiency and flexibility, ensure rationality and quality and high economic efficiency

Inactive Publication Date: 2018-01-23
国营芜湖机械厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is generally used for the removal and installation of surface mount components without causing damage to components and circuit boards, but has not been applied to the removal of multi-pin plug-in components

Method used

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  • Multi-pin plug-in component removal method for aircraft circuit board maintenance
  • Multi-pin plug-in component removal method for aircraft circuit board maintenance
  • Multi-pin plug-in component removal method for aircraft circuit board maintenance

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Embodiment Construction

[0027] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0028] Such as image 3 The operation flow chart shown, a method for removing multi-pin plug-in components for repairing aircraft circuit boards, includes steps:

[0029] S1) place the circuit board to be repaired, such as figure 1 The schematic diagram of the operation shown:

[0030] The components of the rework station include a main heating head, a temperature sensor, and an auxiliary heating table. The main heating head adopts a mixed heating method of infrared and hot air, and the heating temperature is controllable. The temperature sensor can be connected to the computer through the main board of the rework station to view the temperature-time curve in real time. By designing the temperature curve, the negative feedback network composed of the main heating head and the temperat...

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PUM

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Abstract

The invention relates to a multi-pin plug-in component removal method for aircraft circuit board maintenance, which comprises the following steps of placing a to-be-maintained circuit board, designinga heating curve, protecting peripheral components, preprocessing the circuit board, carrying out removal preprocessing on the component and removing the component. Through placing the plug-in component on the reserve surface, being directly heated and damaged can be avoided; through designing the reasonable heating curve, the heating process can be ensured to be safe and controllable; through heat insulation processing on the peripheral components, the peripheral circuit can be ensured not to be damaged; enamel wires are used to fix the component, a slender stick is used to pass across a wirenode from the side surface to apply a stable pulling force to the component, and the purpose of safe and undamaged removal is achieved. The circuit board component removal working efficiency and theflexibility are enhanced, the risks that the removed component, the peripheral device and the circuit board substrate itself are damaged during the removal process are reduced, and the aircraft circuit board maintenance quality is ensured.

Description

technical field [0001] The invention relates to the technical field of maintenance of aircraft circuit boards, in particular to a method for removing multi-pin plug-in components used for maintenance of aircraft circuit boards. Background technique [0002] Aircraft circuit boards are an important part of airborne electronic products. Due to their high value and difficulty in purchasing aircraft circuit boards, it is difficult to guarantee the economy and timeliness if the entire board is replaced in the event of a failure. The general practice is to repair the circuit board. The repair is mainly divided into two steps: the first step is fault testing and positioning, that is, to judge and analyze the possible faulty components through the testing equipment; the second step is to replace the faulty components. Remove and solder new components. The removal of aircraft circuit board components must ensure that no damage is caused to the components themselves, peripheral devic...

Claims

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Application Information

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IPC IPC(8): H05K3/22
Inventor 潘庆国胡猛刘姚军彭文蕾
Owner 国营芜湖机械厂
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