CN201333030Y - Anti-static wrist-belt on-line alarm - Google Patents
Anti-static wrist-belt on-line alarm Download PDFInfo
- Publication number
- CN201333030Y CN201333030Y CNU2009200833077U CN200920083307U CN201333030Y CN 201333030 Y CN201333030 Y CN 201333030Y CN U2009200833077 U CNU2009200833077 U CN U2009200833077U CN 200920083307 U CN200920083307 U CN 200920083307U CN 201333030 Y CN201333030 Y CN 201333030Y
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- China
- Prior art keywords
- circuit
- static
- belt
- wrist
- wrist strap
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model relates to an anti-static wrist belt on-line alarm, in particular to a detecting device for anti-static products. The anti-static wrist-belt on-line alarm is connected between a wrist-belt hole (10) and a ground wire (30). The structure of the anti-static wrist-belt on-line alarm is characterized in that a power supply circuit (21) is sequentially connected with an audio-frequency oscillator circuit (22), an acousto-optical alarming circuit (23) and a wrist-belt normal displaying circuit (24) through a linkage switch (25); and the audio-frequency oscillator circuit (22) is respectively connected with the acousto-optical alarming circuit (23) and the wrist-belt normal displaying circuit (24). The anti-static wrist-belt on-line alarm monitors whether the wrist belt is in good contact with the earth or not when an operator using the wrist belt to operate, and is suitable to use by personnel relating to the manufacture of the anti-static products or the anti-static operation. The anti-static wrist-belt on-line alarm has the advantages of compact structure, high sensitivity and convenient use.
Description
Technical field
This utility model relates to a kind of anti-static product checkout gear, relate in particular to the online alarm of a kind of antistatic wrist strap, be a kind of real-time online wrist strap alarm, be widely used in being engaged in (production anti-static product) personnel and working site relevant with antistatic with sound and light of alarm.
Background technology
Static has great hazardness to electronic product.Show that according to interrelated data Japan once carried out dissection and analysis to underproof electronic product, finding that device is underproof has 45% to be caused by static.The U.S. also once last century the eighties maiden work cross statistics, the annual because loss that static causes of their electronics industry is up to 10,000,000,000 dollars, also there are the typical example of this respect in other countries and China.
Harm has following characteristics to static to electronic product:
1. disguised: human body is perception static directly, unless static discharge takes place; Even generation static discharge human body also differs the sensation of electric shock is arranged surely, this is because the voltage of human perception static discharge is 2-3KV, so static has disguise.
2. potentiality: the performance that some electronic devices and components is subjected to behind the electrostatic damage does not significantly descend, but the discharge meeting that repeatedly adds up causes internal injury and form hidden danger to device, so static has potentiality to the damage of device.
Can 3. randomness: when electronic component suffer electrostatic breakdown? so to say that, after an element generation, until before its damage, all processes all are subjected to electrostatic threat, and these electrostatic generations also have randomness, and it damages also has randomness.
4. complexity: the failure analysis work of electrostatic discharge damage, time-consuming, bothersome, expensive because of the essence of electronic product, thin, small construction features, the technology of having relatively high expectations also often needs to use highly sophisticated device such as scanning electron microscope.Even so, the damage that some electrostatic damage phenomenon also is difficult to cause with other reasons is distinguished, and people's mistake was lost efficacy electrostatic damage be used as other inefficacies.This usually owing to initial failure or inefficacy in confused situation, thereby had covered the true cause that lost efficacy unconsciously before damage of electrostatic discharge is not fully realized.So static has complexity to the analysis of electronic device damage.
In a word, all may produce static at any time and any place.It almost is impossible will eliminating static fully, but can take some measures control static within the degree that does not endanger.
The photovoltaic that our company produces belongs to the electrostatic sensitive product, in order to eliminate the damage of static to product, for a long time, our company production scene is transmitted utensil, packaging bag, antistatic wrist strap, ion blower, clothing etc. to ground, wall, workbench, work chair, working position apparatus, logistics and is all used anti-static product.In static electricity on human body's protection, adopt dual mode usually:
1. dress anti-static clothing dress, shoes and hats, static is led the earth from foot;
2. wear antistatic wrist strap, by the static of hands in order to the human body of releasing, static is led the earth from hands.A ground connection wrist strap hole all is installed, as shown in Figure 1 on each work position, production scene.Before sending every day the special messenger to go to work each wrist strap hole is detected over the ground; Simultaneously the antistatic wrist strap that uses of producers at twice/sky is queued on the wrist strap tester and detects.Above-mentioned detection takes a lot of work, time-consuming, influence is produced.The more important thing is that hands was ceaselessly moving when the employee worked on production station, regular meeting comes in contact bad with ground or the wrist strap damage when wearing the antistatic wrist strap on wrist, and is to know at this moment, promptly can not monitor the antistatic wrist strap quality in real time.Because static electricity on human body's risk prevention is not effectively controlled, there is certain defective in antistatic wrist strap in the monitoring in real time, therefore presses for the online alarm of a kind of antistatic wrist strap of exploitation.
Summary of the invention
The purpose of this utility model just is to overcome the shortcoming and defect that prior art exists, and provides a kind of antistatic wrist strap online alarm.
The purpose of this utility model is achieved in that
The online alarm of antistatic wrist strap is connected between wrist strap hole and the ground wire;
The online alarm of antistatic wrist strap comprises power circuit, audio oscillator circuit, sound light alarming circuit, the normal display circuit of wrist strap and gang switch;
Power circuit is connected with the normal display circuit of audio oscillator circuit, sound light alarming circuit and wrist strap respectively by gang switch, and 6V is provided DC voltage;
The audio oscillator circuit is connected with the normal display circuit of sound light alarming circuit and wrist strap respectively, realizes sound and light alarm and normal the demonstration.
Operation principle of the present utility model is:
The subject matter that various wrist straps use is open circuit, is provisional sometimes, is long-time disconnection sometimes, loses ground connection and electrostatic defending effect.
Behind power connection, when not connecing wrist strap as if the wrist strap hole, the gang switch access failure, this utility model is not worked;
After the wrist strap plug inserted the wrist strap hole, plug withstands gang switch made it connect 6V
DCPower supply, this utility model ability operate as normal;
When if antistatic wrist strap is intact, the audio oscillator circuit nonoscillatory is exported a signal simultaneously and is given the normal display circuit of wrist strap, makes its green light bright;
If during the antistatic wrist strap open circuit, the audio oscillator circuit vibration is exported to sound light alarming circuit with audio oscillator signal simultaneously, and this moment, red light did not stop flicker, and alarm rings;
For the intermittent disconnection phenomenon of antistatic wrist strap, blinking red lamp and chimes of doom also are the intermittent generations of band.
This shows that this utility model can play antistatic wrist strap real-time online warning effect.
The utlity model has following advantage and good effect:
1, has real time and on line monitoring warning effect;
2, has sound and light of alarm, simple, intuitive;
3, easy to install and use;
4, this utility model is applicable to and is engaged in (production anti-static product) personnel and working site relevant with antistatic.
Description of drawings
Fig. 1 is a wrist strap hole ground connection sketch map;
Fig. 2 is that this utility model is connected in sketch map between wrist strap hole and the ground;
Fig. 3 is a block diagram of the present utility model.
Wherein:
10-wrist strap hole;
The online alarm of 20-antistatic wrist strap,
The 21-power circuit,
22-audio oscillator circuit,
23-sound light alarming circuit (red light),
The normal display circuit of 24-wrist strap (green light),
The 25-gang switch;
The 30-ground wire.
The specific embodiment
Describe in detail below in conjunction with drawings and Examples:
One, population structure
As Fig. 2, the online alarm 20 of antistatic wrist strap is connected between wrist strap hole 10 and the ground wire 30;
As Fig. 3, the online alarm 20 of antistatic wrist strap comprises power circuit 21, audio oscillator circuit 22, sound light alarming circuit 23, the normal display circuit 24 of wrist strap and gang switch 25;
Its annexation is:
Two, functional device structure
1, power circuit 21
2, the audio oscillator circuit 22
Audio oscillator is a kind of common circuit, is made up of linear amplifier and electric capacity, resistance; The main element linear amplifier can be selected for use as LM324 integrated package etc.
The sensitivity adjusting potentiometer is as the vibration biasing resistor of audio oscillator circuit 22, different situations at each electronic component parameter difference and working site, suitably regulate the size of vibration biasing resistor, can change the vibration sensitivity of audio oscillator, make it reach optimum efficiency.
3, sound light alarming circuit 23
Sound light alarming circuit 23 is a kind of common circuit, is made of driven for emitting lights pipe (red light) and buzzer linear amplifier and resistance; The main element linear amplifier can be selected for use as LM324 integrated package etc.
4, the normal display circuit 24 of wrist strap
The normal display circuit 24 of wrist strap is a kind of common circuit, is made of driven for emitting lights pipe (green light) linear amplifier and resistance; The main element linear amplifier can be selected for use as LM324 integrated package etc.
5, gang switch 25
Three, using method
Structurally, according to operating position, design has two kinds of structures:
A kind of is that band goes between, and a kind of is not to be with lead-in wire.
1, the online alarm of antistatic wrist strap of band lead-in wire is used for the place that workbench has been equipped with the wrist strap hole.
2, for the workbench of the sort of metal leg ground connection, and the wrist strap hole is not installed, selects the online alarm of the antistatic wrist strap of not being with lead-in wire for use.
Whether normal method of discrimination is in this utility model self work:
A good wrist strap of wearing on wrist is inserted in the wrist strap hole, and have only green light bright this moment; Again wrist strap is broken away from wrist and suspends or be placed on the insulant, this moment blinking red lamp and with buzzer, can confirm that this utility model is working properly; Otherwise undesired, should in time repair.
Claims (1)
1, the online alarm of a kind of antistatic wrist strap (20) is connected between wrist strap hole (10) and the ground wire (30);
It is characterized in that:
Comprise power circuit (21), audio oscillator circuit (22), sound light alarming circuit (23), the normal display circuit of wrist strap (24) and gang switch (25);
Power circuit (21) is connected with audio oscillator circuit (22), sound light alarming circuit (23) and the normal display circuit of wrist strap (24) respectively by gang switch (25);
Audio oscillator circuit (22) is connected with the normal display circuit of wrist strap (24) with sound light alarming circuit (23) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200833077U CN201333030Y (en) | 2009-01-09 | 2009-01-09 | Anti-static wrist-belt on-line alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200833077U CN201333030Y (en) | 2009-01-09 | 2009-01-09 | Anti-static wrist-belt on-line alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201333030Y true CN201333030Y (en) | 2009-10-28 |
Family
ID=41284669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200833077U Expired - Lifetime CN201333030Y (en) | 2009-01-09 | 2009-01-09 | Anti-static wrist-belt on-line alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201333030Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324042A (en) * | 2016-01-07 | 2017-01-11 | 北京东方计量测试研究所 | Anti-static work clothes online testing device |
-
2009
- 2009-01-09 CN CNU2009200833077U patent/CN201333030Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324042A (en) * | 2016-01-07 | 2017-01-11 | 北京东方计量测试研究所 | Anti-static work clothes online testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |
|
| CX01 | Expiry of patent term |