CN202777454U - Automatic electro-static discharge (ESD) protection device - Google Patents
Automatic electro-static discharge (ESD) protection device Download PDFInfo
- Publication number
- CN202777454U CN202777454U CN 201220433146 CN201220433146U CN202777454U CN 202777454 U CN202777454 U CN 202777454U CN 201220433146 CN201220433146 CN 201220433146 CN 201220433146 U CN201220433146 U CN 201220433146U CN 202777454 U CN202777454 U CN 202777454U
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- China
- Prior art keywords
- ion generator
- control circuit
- esd
- relay
- protection device
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- Expired - Fee Related
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses an automatic electro-static discharge (ESD) protection device which comprises an ion generator, a grounding monitor and a control circuit. The control circuit comprises a relay, and the ion generator and the grounding monitor are connected with the relay of the control circuit respectively. The grounding monitor controls the opening and closing of the ion generator through the control circuit, and the ion generator is not required to be manually controlled to be opened and closed so that the phenomenon that electronic devices are damaged by static electricity due to the fact that operators are negligent and forget to open the ion generator is avoided, and simultaneously, work efficiencies of the operators are improved; and besides, the phenomenon that electricity energy is wasted due to the fact that the operators don't close the ion generator when the operators leave is avoided, and the service life of the ion generator is prolonged.
Description
Technical field
This utility model relates to the electrostatic defending in the electron trade, particularly a kind of ESD(Electro-Static discharge, static discharge) autoamtic protection device for forming.
Background technology
Static discharge (ESD, Electro-Static discharge) is the stealthy killer of electronic device, and the inefficacy of most of device causes that by static in process of production, electronic device is subject to the risk of electrostatic damage constantly.
Following universal method is arranged during antistatic technique is used at present: electrostatic grounding, electrostatic dissipation, static neutralize, destatic source etc.Comparatively outstanding technology application has in ground connection monitoring, the ion and eliminates electrostatic equipment based on above method, its intermediate ion neutralization (ion generator) is the most effective eliminostatic application technology, all can eliminate effectively fast static in any environment, but above 2 kinds of electrostatic defending application technologies are self-existent, there is not relatedness to be applied in together, in actual use often can not maximum utilizationization, can not obtain overall application.Such as ion generator, all be designed to hand switch in all same categories of device in the market, if forget unlatching during use, there is the accumulation of static electricity risk in Production Regional when then producing, if produce complete forget to close then waste electric energy, improve production cost.
The utility model content
The shortcoming that the purpose of this utility model is to overcome prior art provides a kind of ESD autoamtic protection device for forming that can automatically start and close with not enough.
The purpose of this utility model is achieved through the following technical solutions: a kind of ESD autoamtic protection device for forming, comprise ion generator, ground connection watch-dog and control circuit, described control circuit comprises relay, and described ion generator is connected with the relay of described control circuit with the ground connection watch-dog and is connected.
Preferably, the switch ends of described ion generator is connected with normally opened contact with the movable contact of the relay of described control circuit by wire respectively.
Preferably, described ground connection watch-dog comprises single-chip microcomputer and the light emitting diode that is connected with single-chip microcomputer, described control circuit also comprises audion, the relay of described control circuit is connected with single-chip microcomputer by audion, and wherein said light emitting diode and relay are connected on the same port of single-chip microcomputer.
Further, described single-chip microcomputer is the AT89 series monolithic.
This utility model has following advantage and effect with respect to prior art:
(1) this utility model is by the duty of ground connection watch-dog control relay, thereby realize the automatic control to the ion generator opening and closing, when operator will be with after connecting the ground connection watch-dog at its ESD-preventive wrist strap on hand, thereby by the work of ground connection watch-dog control relay ion generator is opened automatically; When ESD-preventive wrist strap and ground connection watch-dog disconnect or after operator take off ESD-preventive wrist strap, make the ion generator autoshutdown thereby quit work by ground connection watch-dog control relay; Need not artificial control ion generator opening and closing, avoiding not opening ion generator because of operator's carelessness causes electronic device to be subjected to the phenomenon of static damage, so that operator can concentrate whole attention in the production of product, increase work efficiency simultaneously; Also avoided in addition closing the phenomenon that ion generator causes the electric energy waste because operator forget after leaving the post, when guaranteeing ESD-preventive wrist strap that ion generator worn on the ground connection watch-dog connects, this utility model just automatically opens the service life of further having improved ion generator.
(2) device of the present utility model is in operator operating period, the working region is in effective electrostatic defending scope of ion generator all the time, make electronic product in the course of processing, be in all the time the state of eliminating static, greatly reduce the risk that electrostatic damage brings.
(3) this utility model only can adopt and consist of control circuit by miniature relay, audion and resistor, and control circuit forms simple in structure, and cost is low.
Description of drawings
Fig. 1 is the electric circuit constitute figure of this utility model device.
Fig. 2 is this utility model operator operation charts.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, a kind of ESD autoamtic protection device for forming of present embodiment comprises ion generator 1, ground connection watch-dog 3 and control circuit 2, control circuit 2 comprises relay and PNP audion, and ion generator 1 is connected with the ground connection watch-dog and is connected with the relay of described control circuit 2 respectively.
Wherein the switch ends of ion generator 3 is connected with normally opened contact with the movable contact of the relay of control circuit by wire respectively; The ground connection watch-dog comprises single chip computer AT 89C52 and the light emitting diode that is connected with single-chip microcomputer, the relay of control circuit 2 is connected by the single-chip microcomputer of audion with ground connection watch-dog 3, and wherein light emitting diode and relay are connected on the same I/O port of single-chip microcomputer.
When operator will wear ground connection watch-dog on its ESD-preventive wrist strap on hand connects, the ground connection watch-dog is the resistance of testing human automatically, resistance is qualified will control the light emitting diode conducting if detect, the single-chip processor i/o mouth that is connected with light emitting diode is set to low level, PNP audion conducting this moment, relay is started working.When relay was started working, its movable contact was with on normally opened contact is connected, this moment ion generator switch connection, ion generator is opened, and produces the equilibrium ion emaciation due to emotional upset except the static of Production Regional, the work of beginning electrostatic defending.When ESD-preventive wrist strap and ground connection watch-dog disconnect or operator take off when wearing at its on hand ESD-preventive wrist strap, the cut-off of ground connection watch-dog control light emitting diode, the single-chip processor i/o mouth that be connected with relay this moment is set to high level, the cut-off of PNP audion, the movable contact of relay is got back on the original normally-closed contact position, the switch of ion generator disconnects, so ion generator quits work, and electrostatic defending work stops.If operator's ESD-preventive wrist strap is not correctly worn, the ground connection watch-dog will detect a larger resistance, then alert, and control relay quits work so that the ion generator autoshutdown, to guarantee operator's safety, be illustrated in figure 2 as the sketch map of present embodiment operator when work.
Operator wear ESD-preventive wrist strap on hand and after connecting the ground connection watch-dog, ion generator is opened automatically; Disconnect or after operator take off ESD-preventive wrist strap at ESD-preventive wrist strap and ground connection watch-dog, the ion generator autoshutdown, need not artificial control ion generator opening and closing, the switch of having avoided not opening ion generator because of operator's carelessness causes electronic device to be subjected to the phenomenon of static damage, simultaneously also improved operator's work efficiency, operator are concentrated on whole attention on the production.Also avoided in addition not closing the phenomenon that ion generator causes the electric energy waste after leaving the post because of operator, just open when guaranteeing ESD-preventive wrist strap that ion generator only worn on the ground connection watch-dog connects, further improved the service life of ion generator.
Above-described embodiment is the better embodiment of this utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (4)
1. an ESD autoamtic protection device for forming comprises ion generator and ground connection watch-dog, it is characterized in that, also comprise control circuit, described control circuit comprises relay, and described ion generator is connected with the relay of described control circuit with the ground connection watch-dog and is connected.
2. ESD autoamtic protection device for forming according to claim 1 is characterized in that, the switch ends of described ion generator is connected with normally opened contact with the movable contact of the relay of described control circuit by wire respectively.
3. ESD autoamtic protection device for forming according to claim 1, it is characterized in that, described ground connection watch-dog comprises single-chip microcomputer and the light emitting diode that is connected with single-chip microcomputer, described control circuit also comprises audion, the relay of described control circuit is connected with single-chip microcomputer by audion, and wherein said light emitting diode and relay are connected on the same port of single-chip microcomputer.
4. ESD autoamtic protection device for forming according to claim 3 is characterized in that, described single-chip microcomputer is the AT89 series monolithic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433146 CN202777454U (en) | 2012-08-28 | 2012-08-28 | Automatic electro-static discharge (ESD) protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433146 CN202777454U (en) | 2012-08-28 | 2012-08-28 | Automatic electro-static discharge (ESD) protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202777454U true CN202777454U (en) | 2013-03-13 |
Family
ID=47804811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220433146 Expired - Fee Related CN202777454U (en) | 2012-08-28 | 2012-08-28 | Automatic electro-static discharge (ESD) protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202777454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106716023A (en) * | 2014-07-01 | 2017-05-24 | 真毅环境科技有限公司 | Air purification device and method |
-
2012
- 2012-08-28 CN CN 201220433146 patent/CN202777454U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106716023A (en) * | 2014-07-01 | 2017-05-24 | 真毅环境科技有限公司 | Air purification device and method |
| CN106716023B (en) * | 2014-07-01 | 2019-09-17 | 罗瑞真 | Air purification device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140828 |
|
| EXPY | Termination of patent right or utility model |