Design method for dust removing prompt of PCBA

A dust and user technology, applied in the design field of PCBA dust removal reminder, can solve problems such as adverse consequences, circuit board damage, board burnout, etc., to achieve the effect of improving user satisfaction and reliability

Inactive Publication Date: 2015-11-11
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

However, the actual use conditions of PCBA and the dust left in the environment for a long time are immeasurable. Once there is too much dust (one year or several years without dust removal), the resulting accidents may cause great damage to the circuit board.
[0003] The PCBA board covered with copper foil will generate heat and temp

Method used

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  • Design method for dust removing prompt of PCBA
  • Design method for dust removing prompt of PCBA

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings:

[0019] like figure 1 Shown: When designing the PCB layout, the space for the dust detector should be taken into consideration and reserved, and the power supply and software design of the detector should also be considered. The light collector includes a photosensitive sensor; when the reflected light received by the light collector of the dust detector is weak to a certain extent, the resistance of the photosensitive resistor is large, and the electrical signal output to the system management chip is weak. Limit value, the system management chip sends a prompt signal or reminds the user to remove dust on the screen or by implementing lights and sounds. When removing dust, the photosensitive sheet and other devices should also be cleaned. After the dust is rem...

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Abstract

The invention provides a design method for dust removing prompt of a PCBA and relates to the field of servers, as well as hardware and software of a PC. A dust detector composed of three parts including a photographic plate, a point light source and a light collector (comprising a photosensitive sensor) is additionally arranged on a plate card; and when reflected light collected on the photographic plate by the light collector is lower than certain limit, an prewarning electric signal is transmitted by the collector and then is sent to a central management chip of a system to prompt a user to perform dust removal, so as to realize measures for protecting the PCBA.

Description

technical field [0001] The invention relates to the field of server and PC hardware and software, in particular to a design method for PCBA dust removal reminder. Background technique [0002] When engaged in the PCBA design of servers and PCs, you will find that there is no functional design to remind customers to remove dust. Usually, some corrosion-resistant and moisture-resistant materials are used to design PCB boards during the design process. However, the actual use conditions of PCBA and the dust left in the environment for a long time are immeasurable. Once there is too much dust (one year or several years without dust removal), the resulting accidents may cause great damage to the circuit board. . [0003] The PCBA board covered with copper foil will generate heat and temperature when it works for a long time, and it will also absorb a lot of dust. If there is an abnormality in the board card, such as short-circuit leakage, the current will generate a large amount...

Claims

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Application Information

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IPC IPC(8): G06F11/32
Inventor 王选成孙青华孙铭斌
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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