CN1597340A - Magnetic electronic blackboard display system - Google Patents
Magnetic electronic blackboard display system Download PDFInfo
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- CN1597340A CN1597340A CN 200410040532 CN200410040532A CN1597340A CN 1597340 A CN1597340 A CN 1597340A CN 200410040532 CN200410040532 CN 200410040532 CN 200410040532 A CN200410040532 A CN 200410040532A CN 1597340 A CN1597340 A CN 1597340A
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- magnetic
- electronic blackboard
- magnetic force
- blackboard
- force electronic
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Abstract
An electromagnetic displaying blackboard involves a magnetic writnig tool and a magnetic eraser. The blackboard has an array of LED and electric conductive magnets in rectangular holes in its negative power supply layer. The magnetic writing tool makes electric conductive magnets moving and switch on with power on LED so as to achieve writing on the blackboard. The magnetic eraser makes LED powered off to eliminate writing on the blackboard. The blackboard has no pollution for environment and damages to human health caused by chalk powders, saves fuels and materials for production of chalks.
Description
Technical field
The present invention is a kind of magnetic force electronic blackboard display system.
Background technology
In large, medium and small school, and all kinds of professional and technical training school, generally use chalk on normal blackboard, to write, paint and carry out education activities.It is unhygienic like this finger have been plastered, and in wiping the process of literal, the chalk dust of kicking up along with moving around of blackboard eraser has not only polluted environment, dropped on the person also unhygienicly, importantly enters the respiratory system of human body, endangers healthy!
Summary of the invention
In order to overcome display system that present blackboard, chalk, blackboard eraser form, the present invention proposes the magnetic force electronic blackboard display system of forming by magnetic force electronic blackboard, magnetic pen, magnetic blackboard eraser that is used to impart knowledge to students to the pollution of environment and to the harm of health of human body.
The magnetic force electronic blackboard is made of anodal power supply layer and negative pole power supply layer.Anodal power supply layer is strengthened hard plastic board with one and is adopted the manufacturing process identical with ordinary circuit board to make with an alloy conductive plate as thin as a wafer, and the alloy conductive plate is drawn with power supply is anodal and linked to each other.The negative pole power supply layer has designed many mutual lighttight rectangular body openings that closely link to each other in order at thickness direction, its section is a square, all rectangular body opening end faces all have bonding jumper to link to each other, and shared one of every platoon leader side body opening is drawn after more every row being linked to each other and connect power cathode.Conducting magnetic iron and special light emitting diode are placed in rectangular body opening the inside, and the negative conductive plate of special light emitting diode closely contacts with the bonding jumper of rectangular body opening end face; The anodal electrical conductivity alloy plate of special light emitting diode contacts with conducting magnetic iron, and under the effect of magnetic pen, the alloy conductive plate of anodal power supply layer contacts simultaneously in the anodal electrical conductivity alloy plate of conducting magnetic iron and light emitting diode and the magnetic force electronic blackboard.
Magnetic pen is made of plastic handle and magnet, and the polarity of magnet working face is identical in the polarity of magnetic force electronic blackboard working face direction with conducting magnetic iron in putting into the rectangular body opening of negative pole power supply layer.
Magnetic blackboard eraser is made of plastic handle and magnet, and the polarity of magnet working face is different in the polarity of magnetic force electronic blackboard working face direction with the conducting magnetic iron of putting in the rectangular body opening of negative pole power supply layer.
The present invention conceives uniqueness, and scheme is feasible.Magnetic force electronic blackboard and magnetic pen are worked together, and special light emitting diode is lighted, and light the path and overlap with the magnetic pen motion track, have realized the process of writing on normal blackboard, painting with chalk; Magnetic force electronic blackboard and magnetic blackboard eraser are worked together, the magnetic blackboard eraser place of arrival, and the special light emitting diode of being lighted all extinguishes, and has realized wiping on normal blackboard with blackboard eraser the process of literal, figure.Thereby, fundamentally avoided dust that present normal blackboard, blackboard eraser, chalk produced to the pollution of environment and to the harm of health of human body in teaching process, and saved and be used to make required fuel of chalk and building stones.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the front view of magnetic force electronic blackboard of the present invention.
Fig. 2 is A-A amplification view (identical part is made omissive representation).
Fig. 3 is B-B amplification view (part)
Fig. 4 is the amplification view of the operating position of special light emitting diode.
Fig. 5 is the operating position amplification view of the negative conductive plate of special light emitting diode.
Fig. 6 is that C is to view.
Fig. 7 is the operating position amplification view of the anodal electrical conductivity alloy plate of special light emitting diode.
Fig. 8 is that D is to view.
Fig. 9 is the magnetic pen cutaway view.
Figure 10 is that E is to view.
Figure 11 is the front view of magnetic blackboard eraser.
Figure 12 is the F-F cutaway view.
Figure 13 is G-G cutaway view (identical part is made omissive representation).
As shown in Figure 1, 2, the magnetic force electronic blackboard is made of anodal power supply layer and negative pole power supply layer (1), and connects with sunk screw (5).Strengthen hard plastic board (4) and adopt the manufacturing process identical with ordinary circuit board to make the anodal power supply layer of magnetic force electronic blackboard with alloy conductive plate (3), alloy conductive plate (3) is drawn and is connected to positive source; Negative pole power supply layer (1) thickness direction tighten play designed many equal and opposite in directions in an orderly manner, section is foursquare rectangular body opening, do light tight processing between the rectangular body opening, the end face of rectangular body opening every row when making has just placed bonding jumper as thin as a wafer (10), and draws and connect power cathode.Rectangular body opening is used to place special light emitting diode and conducting magnetic iron (6).Special light emitting diode designs as shown in Figure 4, and its negative pole is connected to negative conductive plate (9), and positive pole is connected to anodal electrical conductivity alloy plate (8), and the structure of negative conductive plate (9) is shown in Fig. 5,6, and the structure of anodal electrical conductivity alloy plate (8) is shown in Fig. 7,8.Light emitting diode and negative conductive plate (9), anodal electrical conductivity alloy plate (8) encapsulate making simultaneously with resin (7), become an independently luminescence unit.Cuboid conducting magnetic iron (6) is placed on above the anodal electrical conductivity alloy plate (8) of light emitting diode, in the rectangular body opening of the negative pole power supply layer (1) of packing into together, the negative conductive plate of light emitting diode (9) closely contacts with bonding jumper (10) on the rectangular body opening.When special light emitting diode with after the working face H face of magnetic force electronic blackboard is concordant, conducting magnetic iron (6) and the alloy conductive plate (3) of anodal power supply layer have the distance of 2 millimeter, as shown in Figure 2.The structure and the composition of Here it is magnetic force electronic blackboard.
Shown in Fig. 9,10, roller power pen is made of plastic handle (11) and magnet (12), and conducting magnetic iron (6) is identical in the polarity of working face H face direction in the polarity of magnet (12) working face I face direction and the magnetic force electronic blackboard.
Shown in Figure 11,12, magnetic blackboard eraser is made of plastic handle (13) and magnet (14),, conducting magnetic iron (6) is different in the polarity of working face H face direction in the polarity of magnet (14) working face J face direction and the magnetic force electronic blackboard.
During work, plug (2) plugs in, magnetic pen working face I face contacts with magnetic force electronic blackboard working face H face, because magnet (12) is identical with the polarity of conducting magnetic iron (6) in the magnetic force electronic blackboard in the magnetic pen, conducting magnetic iron (6) is pushed to anodal power supply layer, up to contacting with alloy conductive plate (3), at this moment, the light emitting diode positive pole is connected and is lighted.In like manner, along with moving of magnetic pen, the track that the path that light emitting diode is lighted and magnetic pen move is the same and overlap, if the motion track of magnetic pen is literal or figure, the light emitting diode path of being lighted also is literal or figure so, thereby has realized writing on normal blackboard or drawing this process with chalk at present.If will wipe literal or figure with the diode displaying of lighting, the working face J face of magnetic blackboard eraser need only be contacted with the light emitting diode that the quilt on the magnetic force electronic blackboard working face H face is lighted, owing to the polarity of conducting magnetic iron (6) in magnet (14) in the magnetic blackboard eraser and the magnetic force electronic blackboard is different, conducting magnetic iron (6) is pulled to the working face H face direction of magnetic force electronic blackboard, up to by spacing the stopping of anodal electrical conductivity alloy plate (8) of light emitting diode, at this moment, the light emitting diode positive pole disconnects and extinguishes, be not moved owing to conducting magnetic iron (6) for the light emitting diode of not lighting, thereby be not affected.In like manner, along with moving of magnetic blackboard eraser, the place of arrival light emitting diode all extinguishes, thereby has realized wiping literal or this process of figure with blackboard eraser on normal blackboard at present.
What deserves to be mentioned is that alloy conductive plate (3) in the magnetic force electronic blackboard and the anodal electrical conductivity alloy plate (8) in the special light emitting diode adopt high any the alloy of chrome content during fabrication.Like this with the magnetic force electronic blackboard in weak suction is arranged during the contacting of conducting magnetic iron (6), both guaranteed the contact formedness of light emitting diode conducting, guaranteed the mobility that is difficult for of conducting magnetic iron (6) in the magnetic force electronic blackboard again, repulsive force and attraction with respect to magnet (14) in the magnet in the magnetic pen (12), the magnetic blackboard eraser and conducting magnetic iron (6) seems insignificant again simultaneously, do not write and erase process thereby do not influence.Comprehensive above-mentioned characteristic, as a magnetic force electronic blackboard of writing full word, pull out attaching plug after, as long as the H working face of magnetic force electronic blackboard not with magnetic pen, magnetic blackboard eraser in magnet partly or other magnet contact, second day plug that plugs in still could show the literal striking resemblances!
The specific embodiment
Magnetic force electronic blackboard profile size is with normal blackboard is the same at present, anodal power supply layer with strengthen hard plastic board (4) with one as thin as a wafer, alloy conductive plate (3) the employing manufacturing process manufacturing identical that chrome content is high with ordinary circuit board.Negative pole power supply layer (1) adopts the mould manufacturing together with rigid plastics and bonding jumper as thin as a wafer (10), bonding jumper (10) is connected to power cathode, negative pole power supply layer (1) inner tight has arranged that in an orderly manner many sections are foursquare rectangular body opening, and do mutual light tight processing, cuboid pore cross section length of side 2.5-4 millimeter.Special light-emitting diode structure form as shown in Figure 4, its section also is a square, and closely cooperate with the rectangular body opening of negative pole power supply layer (1), can be coated with small amount of binder in case of necessity, closely contact with bonding jumper (10) on the rectangular body opening with the negative conductive plate (9) that guarantees light emitting diode.Conducting magnetic iron in the magnetic force electronic blackboard (6) section also is a square, and itself and the distance of alloy conductive plate (3) after the assembling of magnetic force electronic blackboard finishes are 2 millimeter.The working face J face of the working face I face of magnetic pen and magnetic blackboard eraser, for prevent and the working face H face of magnetic force electronic blackboard between wearing and tearing, can be at the jaconet of the surface of magnetic pen and magnetic blackboard eraser parcel one deck softness.
The present invention adopts the 220V power voltage supply, through operating voltage and the operating current of rectification to light emitting diode.Because the operating voltage of light emitting diode is low, electric current is little, so the power consumptive province.The present invention has simultaneously overcome the pollution of environment and the harm healthy to teachers and students, has also saved resources such as the fuel that is used at present make chalk and consumes, building stones.
Claims (4)
1, a kind of magnetic force electronic blackboard display system, it partly is made up of magnetic force electronic blackboard, magnetic pen, magnetic blackboard eraser three, and when writing words or picture, magnetic force electronic blackboard and magnetic pen are worked together; When wiping literal or figure, magnetic force electronic blackboard and magnetic blackboard eraser are worked together.
2, press claim 1 described magnetic force electronic blackboard display system, it is characterized in that the magnetic force electronic blackboard is made of anodal power supply layer, negative pole power supply layer, the length and width of the alloy conductive plate of anodal power supply layer is the same with the length and width of magnetic force electronic blackboard, puts into the anodal common source positive pole of the special light emitting diode of negative pole power supply layer for all; Section is arranged is foursquare rectangular body opening in design in the negative pole power supply layer, and special light emitting diode and conducting magnetic iron are housed in the rectangular body opening, and the bonding jumper on every platoon leader side body opening end face is shared, draws after each bonding jumper links to each other and connects power cathode.
3, press claim 1 or 2 described magnetic force electronic blackboard display systems, it is characterized in that the magnet polarity of magnetic pen working face is identical in the polarity of magnetic force electronic blackboard working face direction with conducting magnetic iron; The magnet polarity of magnetic blackboard eraser working face and conducting magnetic iron are different in the polarity of magnetic force electronic blackboard working face direction.
4, press claim 1 or 2 described magnetic force electronic blackboard display systems, it is characterized in that the negative pole of light emitting diode is connected with power cathode by the bonding jumper in the negative pole power supply layer in the magnetic force electronic blackboard always; Its anodal and positive source are that the effect by magnetic pen, magnetic blackboard eraser is moved conducting magnetic iron in the magnetic force electronic blackboard to realize switching on and off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040532 CN1597340A (en) | 2004-08-22 | 2004-08-22 | Magnetic electronic blackboard display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040532 CN1597340A (en) | 2004-08-22 | 2004-08-22 | Magnetic electronic blackboard display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1597340A true CN1597340A (en) | 2005-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410040532 Pending CN1597340A (en) | 2004-08-22 | 2004-08-22 | Magnetic electronic blackboard display system |
Country Status (1)
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| CN (1) | CN1597340A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241219A (en) * | 2010-12-29 | 2011-11-16 | 上海市浦东新区惠南第二小学 | Magnetic blackboard system |
| CN103481702A (en) * | 2013-09-24 | 2014-01-01 | 无锡莱吉特信息科技有限公司 | Light-emitting diode (LED) blackboard based on pressure sensor |
| CN103770529A (en) * | 2014-02-19 | 2014-05-07 | 马根昌 | Electronic teaching board system |
| CN104589858A (en) * | 2015-01-21 | 2015-05-06 | 华北水利水电大学 | Novel blackboard |
-
2004
- 2004-08-22 CN CN 200410040532 patent/CN1597340A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241219A (en) * | 2010-12-29 | 2011-11-16 | 上海市浦东新区惠南第二小学 | Magnetic blackboard system |
| CN103481702A (en) * | 2013-09-24 | 2014-01-01 | 无锡莱吉特信息科技有限公司 | Light-emitting diode (LED) blackboard based on pressure sensor |
| CN103770529A (en) * | 2014-02-19 | 2014-05-07 | 马根昌 | Electronic teaching board system |
| CN104773013A (en) * | 2014-02-19 | 2015-07-15 | 马根昌 | Electronic teaching board system |
| CN103770529B (en) * | 2014-02-19 | 2015-08-12 | 孙猛 | Electronic teaching board system |
| CN104589858A (en) * | 2015-01-21 | 2015-05-06 | 华北水利水电大学 | Novel blackboard |
| CN104589858B (en) * | 2015-01-21 | 2016-05-25 | 华北水利水电大学 | A kind of new type blackboard |
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