CN210923927U - Digital display monitoring device and system for electrostatic safety state - Google Patents
Digital display monitoring device and system for electrostatic safety state Download PDFInfo
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- CN210923927U CN210923927U CN201921160442.7U CN201921160442U CN210923927U CN 210923927 U CN210923927 U CN 210923927U CN 201921160442 U CN201921160442 U CN 201921160442U CN 210923927 U CN210923927 U CN 210923927U
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- 238000012806 monitoring device Methods 0.000 title description 7
- 238000012544 monitoring process Methods 0.000 claims abstract description 50
- 210000000707 wrist Anatomy 0.000 claims abstract description 18
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model discloses an electrostatic safety state digital display monitoring system, including wrist strap monitoring module, ESD cushion monitoring module, equipment monitoring module and PLC controller, wrist strap monitoring module, ESD cushion monitoring module, the equal linear connection PLC controller of equipment monitoring module, the linear connection static ground wire of PLC controller, the PLC controller connection has alarm output, and is novel small, light in weight, digital display, audible-visual alarm can freely install on the production line, and to the station of frequent change, as long as close the switch that the host computer corresponds can, it is very convenient to can adjust specific monitoring point according to the needs of station, also can monitor a point alone, the suitability is stronger.
Description
Technical Field
The utility model relates to a monitoring facilities field, in particular to static safe state digital display monitoring devices and system.
Background
In the process of rapid development of technologies in the industries of electronics, war industry, aerospace and the like, in order to ensure the reliability of electronic components in the processes of packaging, testing and assembling, electrostatic protection measures must be taken in the production link to ensure that products are not influenced by static electricity; for the electrostatic safety of the product in the production process, follow-up is needed from two aspects: on one hand, the equipment and the workbench are grounded to conduct away static electricity; on the other hand, selecting antistatic consumables (such as antistatic clothes, antistatic electrician shoes, ESD antistatic table mats, ground mats and the like) which are not suitable for generating static electricity or generating static electricity and are dissipated in time; after equipment is grounded and anti-static consumables are assembled, how to ensure the performance of the equipment meets the requirement of an electrostatic protection system; at present, the monitoring of antistatic consumables is usually carried out by an ESD specialist for regular check and corresponding record, which wastes a great deal of manpower; the periodical inspection is a time node, if the performance of the anti-static consumable material is attenuated, the problem cannot be found in time, the static electricity can cause soft breakdown on sensitive components, and the product flows to a test site, so that the problem cannot be found in time; the faults such as shortening of the service cycle of the product and the like can be caused after the components are assembled (the traditional static monitor cannot give an alarm when the performance of the anti-static consumable material is attenuated).
Therefore, it is necessary to provide a digital display monitoring device and system for electrostatic safety status to solve the above problems.
Disclosure of Invention
An object of the utility model is to provide an electrostatic safety state digital display monitoring devices and system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electrostatic safety state digital display monitoring devices and system, includes wrist strap monitoring module, ESD cushion monitoring module, equipment monitoring module and PLC controller, wrist strap monitoring module, ESD cushion monitoring module, the equal linear connection PLC controller of equipment monitoring module, the linear connection static ground wire of PLC controller, the PLC controller connection has the warning output.
Preferably, the alarm output comprises a buzzer, an indicator light and an LED display screen.
Preferably, the wrist strap monitoring module comprises a comparison circuit, an upper limit alarm value of the ground resistance of the comparison circuit can be set to 35M Ω, and a lower limit alarm value of the ground resistance is set to 750K Ω.
Preferably, the resistance of the ESD pad monitoring module may be preset to an upper limit of 100M Ω (adjustable).
Preferably, the ground resistance of the equipment monitoring module can be preset to be 50 Ω (adjustable).
Preferably, the wrist strap monitoring module, the ESD table pad monitoring module and the equipment monitoring module all comprise alarm circuits.
Preferably, the wrist strap monitoring module, the ESD table pad monitoring module and the equipment monitoring module are all connected through RS-485 communication interface circuits.
The utility model discloses a technological effect and advantage:
the utility model discloses small, light in weight, digital display, audible and visual alarm can freely install on the production line, to the station of frequent change, as long as close the switch that the host computer corresponds can, very convenient to can adjust specific monitoring point according to the needs of station, also can monitor a point alone, the suitability is stronger, several real-time parameter that integrated electronic product needs monitor, through the monitoring of these several parameters, realize the cover of static safe state; meanwhile, basic parameters of grounding resistors of the anti-static wrist strap, the ESD anti-static table pad and the equipment grounding module are set, so that the corresponding parameters can meet the requirements of ANSI/ESDS 20.20, when the modules detect that the corresponding parameters exceed the range, the equipment can give an alarm, and the resistance value is displayed through the LED display screen. The accurate fault point of judgement wrist strap, ESD antistatic bench pad or equipment ground return circuit of ability, timely, accurate suggestion operator, the rapid processing trouble resumes normal production, the utility model discloses monitoring instrument has the characteristics of the precision height, with low costs, is fit for promoting in the electron trade.
Drawings
Fig. 1 is a schematic block diagram of the circuit of the present invention.
In the figure: the system comprises a PLC (programmable logic controller) 1, a wrist strap monitoring module 2, an ESD (electro-static discharge) table mat monitoring module 3, an equipment monitoring module 4, an LED display screen 5, an electrostatic ground wire 6, an alarm output 7, a buzzer 8 and an indicator lamp 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
The utility model provides an electrostatic safety state digital display monitoring devices and system as shown in the figure, including wrist strap monitoring module 2, ESD cushion monitoring module 3, equipment monitoring module 4 and PLC controller 1, wrist strap monitoring module 2, ESD cushion monitoring module 3, the equal linear connection PLC controller 1 of equipment monitoring module 4, PLC controller 1 linear connection electrostatic earth wire 6, PLC controller 1 is connected and is tied up alarm output 7.
Further, in the above technical solution, the alarm output 7 includes a buzzer 8, an indicator light 9 and an LED display 5.
This practical theory of operation:
referring to the attached drawings of the specification, the wrist strap monitoring module 2 is used for detecting whether the grounding condition of the anti-static wrist strap meets the requirement or not, the wrist strap monitoring module 2 comprises a comparison circuit and an audible and visual alarm circuit, the upper limit value of the grounding resistance of the comparison circuit is 35M omega, and the lower limit value of the grounding resistance of the comparison circuit is 750K omega; when the detected grounding resistance is between 750K omega and 35M omega, a green lamp in the sound-light alarm circuit is on, the buzzer 8 does not give an alarm, the grounding condition of the anti-static wrist strap meets the requirement, and the monitored resistance value is displayed through the LED display screen 5; when the grounding resistance is detected to be less than 750K omega, a blue lamp in the sound-light alarm circuit is on, and the monitored resistance value is displayed through the LED display screen 5; when the grounding resistance is detected to be larger than 35M omega (representing that the grounding wire is disconnected and cannot achieve the effect of human body electrostatic discharge, the grounding wire needs to be overhauled in time), an indicator lamp 9 in the acousto-optic alarm circuit is turned on in red, a buzzer 8 gives an alarm, and an LED display screen displays the resistance value for monitoring. ESD platform pad monitoring module 3 is used for detecting the ground state of ESD antistatic table pad, and the ground resistance of platform pad is predetermine the upper limit value and can be established to 100M omega, surpasss 8 warning of buzzer among the scope acousto-optic warning circuit and the bright red light of pilot lamp 9, and the resistance shows through LED display screen 5, and accurate suggestion operator handles the trouble fast.
The equipment monitoring module 4 is used for detecting the grounding state of the equipment, the grounding resistance of the equipment can be set within the range of 0-50 omega, the buzzer 8 can give an alarm when the grounding resistance exceeds the set parameter, the indicator lamp 9 can light a red light, the resistance value is displayed through the LED display screen 5, an operator can be accurately prompted, and faults can be quickly processed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (2)
1. The utility model provides an electrostatic safety state digital display monitoring system which characterized in that includes: wrist strap monitoring module (2), ESD cushion monitoring module (3), equipment monitoring module (4) and PLC controller (1), wrist strap monitoring module (2), ESD cushion monitoring module (3), equipment monitoring module (4) all linear connection PLC controller (1), PLC controller (1) linear connection static ground wire (6), PLC controller (1) is connected with alarm output (7).
2. The digital display monitoring system for the electrostatic safety state according to claim 1, characterized in that: the alarm output (7) comprises a buzzer (8), an indicator lamp (9) and an LED display screen (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160442.7U CN210923927U (en) | 2019-07-23 | 2019-07-23 | Digital display monitoring device and system for electrostatic safety state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160442.7U CN210923927U (en) | 2019-07-23 | 2019-07-23 | Digital display monitoring device and system for electrostatic safety state |
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| Publication Number | Publication Date |
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| CN210923927U true CN210923927U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921160442.7U Active CN210923927U (en) | 2019-07-23 | 2019-07-23 | Digital display monitoring device and system for electrostatic safety state |
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| Country | Link |
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| CN (1) | CN210923927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230064A (en) * | 2020-10-16 | 2021-01-15 | 深圳市海能达通信有限公司 | ESD intelligent monitoring system |
-
2019
- 2019-07-23 CN CN201921160442.7U patent/CN210923927U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230064A (en) * | 2020-10-16 | 2021-01-15 | 深圳市海能达通信有限公司 | ESD intelligent monitoring system |
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