CN1095430C - Electrostatic adsorption posting writing board - Google Patents
Electrostatic adsorption posting writing board Download PDFInfo
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- CN1095430C CN1095430C CN99107868A CN99107868A CN1095430C CN 1095430 C CN1095430 C CN 1095430C CN 99107868 A CN99107868 A CN 99107868A CN 99107868 A CN99107868 A CN 99107868A CN 1095430 C CN1095430 C CN 1095430C
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- electrostatic
- induction electrode
- panel
- writing board
- posting
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Abstract
The present invention discloses an electrostatic absorption posting writing board which uses electrostatic attracting force as absorbing force. The present invention has the main technical scheme that the electrostatic absorption posting writing board is composed of a high-voltage electrostatic source, a board surface of the absorption board, a positive induction electrode, a negative induction electrode and an edge frame, wherein the high-voltage electrostatic source can discontinuously output DC high-voltage electricity. An electrostatic eliminating element is arranged between an electrostatic generator and an electrode belt, and the positive induction electrode and the negative induction electrode are distributed on the back surface of a panel in equal distance and are treated by insulation and moisture prevention. The electrostatic absorption posting writing board is used for absorbing the thin insulating objects of posting paper, etc., and can carry out direct writing on the board surface. When a chalk is used for writing, no powder dust flies in wiping operation. The present invention has the characteristics of reliable and stable performance, convenient use and beautiful appearance.
Description
What the present invention relates to is a kind of clipboard, and specifically, what the present invention relates to is a kind of posting writing board that utilizes Electrostatic Absorption.
Putting up and writing is the important form of information transmission and communication and education, in the prior art, posting writing board such as blackboard, blank etc., be to adopt wooden or other similar materials are made mostly, put up on the plate and puted up common being fixed on of product with glue, adhesive tape or drawing pin material etc. by the paper puted up etc., make so on the one hand and put up, replace cumbersome that the product of putting up remove down the back at the residual impression of clipboard surface meeting, influence attractive in appearance and put up once more; Cracky in the process that data important to some on the other hand, that need after putting up to reclaim is taken off on clipboard.
In the prior art, also have some convenient magnetic of using to put up writing device, but ubiquity that absorption is not firm, magnetic stripe (soon) is easily lost, deficiency such as attractive in appearance inadequately.In addition, above-mentioned posting writing board is in the chalk writing process, and dust from flying had both influenced the healthy of user, and the while is contaminated environment also.
Application number is CN89202983, the patent documentation that is entitled as " electrostatic precipitation blackboard eraser " discloses a kind of electrostatic precipitation blackboard eraser, and the high-pressure electrostatic that produces in brush finish when this blackboard eraser utilizes the electrostatic high-pressure circuit working automatically with the chalk dust wiped efficiently, be collected in the dust-collecting box cleanly.
Application number CN91103634, the patent documentation that is entitled as " electrostatic blackboard dust collecting method and equipment thereof " discloses a kind of electrostatic blackboard dust collecting method and equipment thereof, main feature is folder one wire netting in the insulating materials that constitutes blackboard, and make it to export non-earth terminal and link to each other with the high pressure of high-voltage DC power supply, the metal dust suction groove is established on bristle side at blackboard eraser, and makes it to link to each other with the earth terminal of high-voltage DC power supply.
Above-mentioned disclosed patent documentation has been mentioned and has been adopted electrostatic generator to reach the purpose of dust suction, but, how these patent documentations provides the Electrostatic Absorption of greater strength power to adsorb paper or books, how just can make the plate face not produce polarization phenomena under long-term use if not relating to, also do not relate to the unanimity that keeps Electrostatic Absorption power under different environment.
The object of the present invention is to provide a kind of is absorption affinity with the electrostatic attraction, can adsorb insulation such as paper magazine article, can conveniently write again and can dustproof and overcome the electrostatic adsorption posting writing board of above-mentioned defective.
For achieving the above object, the technical solution used in the present invention is: a kind of electrostatic adsorption posting writing board is made up of high-voltage static power panel and the positive and negative induction electrode and the frame that are laid in back side of panel.It is characterized in that:
1. high-voltage electrostatic power mainly is made of controller and electrostatic generator, control circuit when controller partly comprises; Controller and electrostatic generator, acting in conjunction obtain the batch (-type) dc high-voltage;
2. between electrostatic generator and panel utmost point band, add the electrostatic element that disappears;
3. panel induction electrode and high-voltage contact are insulated and moisture seal at back side of panel with the high pressure resistant humidity material of insulation;
4. the staggered equidistantly insulation of positive and negative induction electrode is laid, and positive and negative induction electrode spacing is between 10mm～100mm.
The electrostatic element that disappears is parallel to panel induction electrode or electrostatic generator output.
The absorption panel is made of the bigger hard material of dielectric constant, shapes such as positive and negative induction electrode is in line, arc, zigzag are every equidistantly certain, staggered empire cloth is located at the absorption back side of panel, and with high pressure resistant material all contacts after utmost point band, the high pressure generator is carried out moisture seal.
The present invention is owing to adopt said structure, as absorption affinity, thereby can overcome the deficiency that existing posting writing board exists effectively with electrostatic attraction, not only can be used for absorption and puted up insulation article such as paper but also can directly write on clipboard; Especially owing to partly adopted the time control supply unit at controller, the work of electrostatic generator interruption, and added the electrostatic element that disappears, can eliminate remaining electric charge and the electromotive force of utmost point capacitor when stopping using, make panel return to initial easy polarized state rapidly, thereby improve the enhancing of panel molecular structure and keep its panel Electrostatic Absorption power; Simultaneously since with panel induction electrode and high-voltage contact insulated, moisture seal, can avoid moist creepage between contact discharge and the utmost point band, make it not to be subjected to weather and external condition to influence; Thereby its functional reliability and stability have been improved.Thereby the present invention has the advantages that to make things convenient for use, stable performance and good looking appearance.Because electrostatic adsorption can be avoided dust from flying when writing wiping with chalk, the protection user's is healthy simultaneously.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the invention front view of electrostatic adsorption posting writing board of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 2;
Fig. 4 is the circuit block diagram of electrostatic adsorption posting writing board of the present invention;
Fig. 5 is the circuit theory diagrams of electrostatic adsorption posting writing board of the present invention.
Among Fig. 1 to Fig. 5,1 is panel, and 2 is attaching plug, the 3rd, and bonnet, the 4th, high-voltage electrostatic power, the 5th, positive induction electrode, the 6th, negative induction electrode, the 7th, the electrostatic element that disappears, the 8th, frame.
The parameter of relevant electronic component or model detail see attached list 1.
In the present invention, it is the epoxy resin board of 0.5～2.0mm that absorption panel 1 is selected thickness for use, and area can be made into 0.5～6.0m
2, and resin plate can be dyed blackboard, blank or other versicolor plate face.
Power supply, the time control circuit and electrostatic generator processing on a printed circuit board, be combined into high-voltage electrostatic power 4, this device is installed in absorption panel 1 back side frame 8 inboards for ultra-thin shape structure, by attaching plug 2 input 220V alternating currents, this 220V alternating current is through transformer B
1, diode D
1～D
4, capacitor C
1The current rectifying and wave filtering circuit of forming, diode D
6～D
14Resistance R
8, capacitor C
7Form the low pressure accessory power supply in order to compensation work power supply, IC
4Be three end direct current stabilizers, through stable 6V dc source of IC4 output, capacitor C
2, resistance R
1Form clear circuit, resistance R
2, R
3Capacitor C
3And the frequency divider ic chip of band vibration
1Form oscillation frequency dividing circuit, through non-gate ic IC
2Phase inverter is delivered to the not circuit ic chip
3, at IC
3Output to bring out 13 pin output conduction time be that 18 seconds, power-off time are 6 seconds time control signal, deliver to triode T then
1, resistance R
5, capacitor C
4, resistance R
6The phase inverter of forming, this phase inverter output signal control relay J
1Switching, direct current 6V power supply is switched by relay be delivered to electrostatic generator, thereby control electrostatic generator break-make work, its working time is 6 seconds, conclude that the electricity time is 18 seconds, electrostatic generator when work output voltage V=1～30,000 volt, 1≤20 microampere of output current, the output voltage positive pole connects positive induction electrode 5, the output voltage negative pole connects negative induction electrode 6, just, negative induction electrode 5 and 6 is made the Z font by metal pool paper, linear pattern, the staggered equidistant empire cloth of camber line shape or other shape is located at absorption panel 1 back side, just, negative induction electrode 5,6 spacings are 10～100mm; The electrostatic element 7 that disappears is parallel to panel induction electrode or electrostatic generator output.
Insulation, moisture seal can adopt to be moored positive and negative induction electrode that paper makes the wide 0.5～150mm of being with metal equidistantly (10～100mm) is posted on the alkali-free glass fiber cloth every certain by vertical bar shaped Z font, camber line shape, and stick the copper sheet of 0.05mm in utmost point band junction, the production technology of pressing epoxy resin board then is with the panel press forming; The contact of electrostatic generator and panel utmost point band and the electrostatic element that disappears is cast with high pressure resistant epoxy resin, and (more than the thickness 0.5mm) insulate, moisture seal.
The mode that the electrostatic element 7 that disappears can adopt resistance or inductance to connect with resistance constitutes, and it is parallel on electrostatic generator output or the induction electrode positive and negative electrode band, or above one or more.
Utmost point band arrangement: the positive and negative induction electrode of plate face can be moored the staggered equidistantly insulation of type, camber or other shape that is in line of paper, metal book sheet, wire or electrically-conducting paint by metal and lay and be fixed in the absorption back side of panel, and positive and negative induction electrode width, spacing can be adjusted at 0.5mm～150mm and 10～100mm respectively.
Back shroud 3 is connected with frame 7 usefulness screws.During this posting writing board work, can on the absorption panel, produce about 100～1000Mg/Cm
2Surperficial absorption affinity.
Table 1
| Element | Parameter or model | Element | Parameter or model |
| R 1 | 470K | R 2 | 390K |
| R 3 | 2.7～4.3MΩ | R 4 | 10K |
| R 5 | 5.1K | R 6 | 5.1K |
| R 7 | 1K | R 8 | 1K |
| R 9 | 5.1～27K | C 1 | 1000μF/16V |
| C 2 | 10μF/16V | C 3 | 0.33～0.56μ /50V |
| C 4 | 10μF/16V | C 5 | 0.01μF/50V |
| C 6 | 1000μF/6V | C 7 | 1000μF/25V |
| C 8 | 0.01～0.047μ F/50V | D 1～D 7 | IN4007 |
| D 8 | W12V | D 9～D 12 | IN4007 |
| D 13 | High back-pressure diode | T 1 | 3DG8 |
| T 2 | 9013 | T 3 | D406 |
| IC 1 | CD4060 | IC 2 | CD4069 |
| IC 3 | CD4012 | IC 4 | 7806 |
| J 1 | 4123-06 | BX 1 | 0.2A |
| B 1 | B 2 | High frequency transformer | |
| Electrostatic element R disappears 10 | 2～12G | ||
Electrostatic adsorption posting writing board of the present invention, owing to adopted above-mentioned multiple measure, make posting writing board have stronger absorption affinity, this absorption affinity can both play consistently effect under various working environments, simultaneously, owing to adopted static eliminator, avoided the polarization of panel, prolonged service life.
Claims (9)
1, a kind of electrostatic adsorption posting writing board, comprise that high-pressure electrostatic source, frame, panel takes place and is laid in the positive and negative induction electrode of back side of panel, it is characterized in that: the source takes place and is made of control circuit when controller partly comprises controller and electrostatic generator in described high-pressure electrostatic; Between electrostatic generator and panel utmost point band, be provided with the electrostatic element that disappears; Panel induction electrode and high-voltage contact insulate and moisture seal at back side of panel with the high pressure resistant humidity material of insulation.
2, electrostatic adsorption posting writing board according to claim 1 is characterized in that: described controller and electrostatic generator, acting in conjunction obtain the batch (-type) dc high-voltage; Wherein, power supply, the time control circuit and electrostatic generator processing on a printed circuit board, be combined into high-voltage electrostatic power (4), this device is installed in absorption panel (1) back side frame (8) inboard for ultra-thin shape structure, by attaching plug (2) input 220V alternating current, this 220V alternating current is through transformer B
1, diode D
1～D
4, capacitor C
1The current rectifying and wave filtering circuit of forming, diode D
6～D
14Resistance R
8, capacitor C
7, form the low pressure accessory power supply in order to compensation work power supply, IC
4Be three end direct current stabilizers, through IC
4Export a stable 6V dc source, capacitor C
2, resistance R
1Form clear circuit, resistance R
2, R
3Capacitor C
3And the frequency divider ic chip of band vibration
1Form oscillation frequency dividing circuit, through non-gate ic IC
2Phase inverter is delivered to the not circuit ic chip
3, at IC
3Output to bring out (13) pin output conduction time be that 18 seconds, power-off time are 6 seconds time control signal, deliver to triode T then
1, resistance R
5, capacitor C
4, resistance R
6The phase inverter of forming, this phase inverter output signal control relay J
1Switching, direct current 6V power supply is switched by relay be delivered to electrostatic generator, thereby control electrostatic generator break-make work, its working time is 6 seconds, conclude that the electricity time is 18 seconds, electrostatic generator when work output voltage V=1～30,000 volt, 1≤20 microampere of output current, the output voltage positive pole connects positive induction electrode (5), the output voltage negative pole connects negative induction electrode (6), just, the Z font is made by metal pool paper in negative induction electrode (5) and (6), linear pattern, the staggered equidistant empire cloth of camber line shape or other shape is located at absorption panel (1) back side, just, negative induction electrode (5), (6) spacing is 10～100mm between; The electrostatic element (7) that disappears is parallel to the panel induction electrode or electrostatic generator output is auspicious.
3, electrostatic adsorption posting writing board according to claim 1 is characterized in that: the staggered equidistantly insulation of described positive and negative induction electrode is laid, and positive and negative induction electrode spacing is between 10mm～100mm.
4, electrostatic adsorption posting writing board according to claim 1 is characterized in that: the mode that the described electrostatic element that disappears (7) can adopt resistance or inductance to connect with resistance constitutes, and it is parallel on electrostatic generator output or the induction electrode positive and negative electrode band.
5, electrostatic adsorption posting writing board according to claim 1 is characterized in that: described absorption panel is made of the bigger hard material of dielectric constant.
6, electrostatic adsorption posting writing board according to claim 1 is characterized in that: described absorption panel is made of epoxy resin board.
7, electrostatic adsorption posting writing board according to claim 1 is characterized in that: the shape of described positive and negative induction electrode is selected from a kind of among straight line, arc, the Z.
8, according to claim 1 and the described electrostatic adsorption posting writing board of claim 7, it is characterized in that: the width of described positive and negative induction electrode is 0.5～150mm.
9, electrostatic adsorption posting writing board according to claim 1 is characterized in that: the about 100～1000Mg/Cm of surperficial absorption affinity on the described posting writing board panel
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99107868A CN1095430C (en) | 1999-02-12 | 1999-06-04 | Electrostatic adsorption posting writing board |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99102042.1 | 1999-02-12 | ||
| CN99102042 | 1999-02-12 | ||
| CN99107868A CN1095430C (en) | 1999-02-12 | 1999-06-04 | Electrostatic adsorption posting writing board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1263007A CN1263007A (en) | 2000-08-16 |
| CN1095430C true CN1095430C (en) | 2002-12-04 |
Family
ID=25744993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99107868A Expired - Fee Related CN1095430C (en) | 1999-02-12 | 1999-06-04 | Electrostatic adsorption posting writing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1095430C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984256A (en) * | 2015-02-04 | 2016-10-05 | 深圳市福田区青少年科技教育协会 | Writing method and device used in windy condition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2084009U (en) * | 1990-11-30 | 1991-09-04 | 刘剑波 | Corona dusting blackboard |
-
1999
- 1999-06-04 CN CN99107868A patent/CN1095430C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2084009U (en) * | 1990-11-30 | 1991-09-04 | 刘剑波 | Corona dusting blackboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1263007A (en) | 2000-08-16 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |