CN202735979U - Electromagnetic type electronic white board eraser with low electricity prompting - Google Patents
Electromagnetic type electronic white board eraser with low electricity prompting Download PDFInfo
- Publication number
- CN202735979U CN202735979U CN 201220293441 CN201220293441U CN202735979U CN 202735979 U CN202735979 U CN 202735979U CN 201220293441 CN201220293441 CN 201220293441 CN 201220293441 U CN201220293441 U CN 201220293441U CN 202735979 U CN202735979 U CN 202735979U
- Authority
- CN
- China
- Prior art keywords
- battery
- white board
- electronic white
- low electricity
- wiped
- Prior art date
- 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
Links
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses an electromagnetic type electronic white board eraser with low electricity prompting. The electromagnetic type electronic white board eraser with low electricity prompting comprises a shell body, wherein an electromagnetic wave emission module, a battery, a voltage detection circuit and an indicator light circuit are arranged in the shell body. An input end VIN of the voltage detection circuit is connected with an anode of the battery, an output end OUT of the voltage detection circuit is connected with an anode of the indicator light circuit, and a grounding end GND of the voltage detection circuit is connected with a cathode of the battery. The anode of the indicator light circuit is again connected with the cathode of the battery through a switch SW1. The electromagnetic type electronic white board eraser with low electricity prompting can timely remind a user of the electromagnetic type electronic white board eraser that whether the electric quantity of the battery is insufficient, or the battery needs charging or changing, and can avoid unusable phenomenon caused by insufficient electric quantity of an electronic pen, so that use fluency of an electronic white board is guaranteed, and time of teaching teachers and students is saved. Simultaneously, the electromagnetic type electronic white board eraser with low electricity prompting has the advantages of being simple in structure and manufacture and capable of being widely popularized and used.
Description
Technical field
The utility model relates to a kind of electronic whiteboard to be wiped, and relates in particular to a kind of electronic whiteboard with low electricity prompting and wipes.
Background technology
Along with the development of science and technology and the needs in market, interactive electric whiteboard has appearred, wherein induction electronic whiteboard can carry out communication with computer, electronic whiteboard is connected to computing machine, and utilize projector that the content on the computing machine is projected on the electronic whiteboard, under the electronic whiteboard application program cooperates, utilize specific electronic pen to replace mouse at the enterprising line operate of blank, can move any application program, can edit file, note, preservation etc.
In the existing product, the product that has, electronic pen and whiteboard eraser become one, during actual the use, if want to wipe the content of writing, will first electronic pen be switched to the blackboard eraser state, this moment, electronic pen just had wiping function, need to when blank be write, again pen be switched letter in reply and write state.Electronic pen needs ceaselessly to switch, and switches frequently very inconveniently, and the efficient of working and learning is reduced greatly.
In order to solve above-mentioned inconvenience, the electronic whiteboard wiping has appearred on the market, electronic whiteboard is wiped the great majority dry cell power supply, minority is used rechargeable battery powered, sometimes in use the unexpected electric weight of battery is not enough, so the electronic whiteboard wiping occurring can not use suddenly, the user does not know whether battery has not had electricity, owing to can't in time change battery or charging, affected the use that electromagnetic electronic white board is wiped, because electronic whiteboard is wiped and is often used in the class by teacher, has affected large quantities of students' study and teacher's efficiency of teaching.
Summary of the invention
In view of above situation, the technical matters of the actual solution of the utility model is: the user does not know whether electromagnetic electronic white board wiping battery has not had electricity, owing to can't in time change battery or charging, affected the use that electromagnetic electronic white board is wiped, because electronic whiteboard is wiped and is often used in the class by teacher, has affected large quantities of students' study and teacher's efficiency of teaching.
The utility model provides a kind of electronic whiteboard with low electricity prompting to wipe, comprise housing, described housing includes electromagnetic induction module, battery also comprises voltage detection circuit, indicator light circuit in the described housing, the input end VIN of described voltage detection circuit connects anode, output terminal OUT connects the positive level of indicator light circuit, and ground end GND connects battery cathode, and described indicator light circuit is anodal to be connected with battery cathode by interrupteur SW 1 again.
Contact resistance R2 again between described voltage detection circuit output terminal and the described anode.
The resistance R 1 of connecting again between described pilot lamp negative pole and the battery cathode.
Described pilot lamp is light emitting diode.
Described light emitting diode is green LED.
Described battery is dry cell.
Described battery is rechargeable battery.
The beneficial effects of the utility model are: the user who in time reminds electromagnetic electronic white board to wipe, whether battery electric quantity is not enough, need charging or change battery, avoid because electronic pen electric weight deficiency causes and can't use, thereby guaranteed the fluency that electronic whiteboard uses, saved teaching academics and students's time, simultaneously structure, make simply, can be by widely promotion and application.
Description of drawings
Fig. 1 is the syndeton block diagram of the utility model battery, detecting voltage road, indicator light circuit.
Fig. 2 is the utility model battery, voltage detection circuit.The connecting circuit figure of indicator light circuit.
Wherein, the output terminal OUT of 1 voltage detection circuit, the ground end GND of 2 voltage detection circuits, the input end VIN of 3 voltage detection circuits.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among Fig. 1, battery connects voltage detection circuit, and the output of voltage detection circuit connects indicator light circuit.
Among Fig. 2, the input end VIN of detecting voltage IC U1 connects the anodal VBAT of battery, the ground end GND of detecting voltage IC U1 connects the negative pole of battery, one end of resistance R 2 connects anode VBAT, the other end of resistance R 2 connects the output terminal OUT of detecting voltage IC U1, and the output terminal of detecting voltage IC U1 connects the positive pole of pilot lamp D1, and an end of resistance R 1 connects the pilot lamp negative pole, resistance R 1 other end connects gauge tap SW1, and the other end of gauge tap SW1 connects the negative pole of battery.Pilot lamp D1 is the green emitting diode.
Detect the voltage that IC detects when cell voltage is higher than, detecting voltage IC U1 exports high level, if the user presses gauge tap SW1, pilot lamp both positive and negative polarity electric potential difference is large, pilot lamp D1 brightens, and illustrates that battery is in electricity condition is arranged, and electronic whiteboard is wiped and can normally be used.
When cell voltage is lower than the voltage that detecting IC detects, detecting voltage IC U1 output low level, if the user presses gauge tap SW1, pilot lamp both positive and negative polarity electric potential difference is extremely low, pilot lamp D1 does not work, and illustrates that battery is in low electricity condition, and electronic whiteboard is wiped and can not normally be used, the user will change or charges battery, and the user in time changes battery according to prompting or battery is charged.
Consider that electronic whiteboard wipes the dry cell power supply of use have, the usefulness that has is rechargeable battery powered, so can according to the difference of used battery variety, select the different detecting voltage IC of voltages and the resistance R 1 of different resistances detected.
Claims (7)
1. the electromagnetic electronic white board of the low electricity prompting of band is wiped, comprise housing, described housing includes the electromagnetic wave transmitter module, battery is characterized in that: also comprise voltage detection circuit, indicator light circuit in the described housing, the input end VIN of described voltage detection circuit connects anode, output terminal OUT connects the positive level of indicator light circuit, and ground end GND connects battery cathode, and described indicator light circuit is anodal to be connected with battery cathode by interrupteur SW 1 again.
2. the electromagnetic electronic white board of the low electricity prompting of band as claimed in claim 1 is wiped, and it is characterized in that: contact resistance R2 again between described voltage detection circuit output terminal and the described anode.
3. the electromagnetic electronic white board of the low electricity prompting of band as claimed in claim 1 or 2 is wiped, and it is characterized in that: the resistance R 1 of connecting again between described pilot lamp negative pole and the battery cathode.
4. the electromagnetic electronic white board of the low electricity prompting of band as claimed in claim 1 or 2 is wiped, and it is characterized in that: described pilot lamp is light emitting diode.
5. the electromagnetic electronic white board of the low electricity prompting of band as claimed in claim 4 is wiped, and it is characterized in that: described light emitting diode is green LED.
6. electromagnetic electronic white board as claimed in claim 1 is wiped, and it is characterized in that: described battery is dry cell.
7. electromagnetic electronic white board as claimed in claim 1 is wiped, and it is characterized in that: described battery is rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293441 CN202735979U (en) | 2012-06-20 | 2012-06-20 | Electromagnetic type electronic white board eraser with low electricity prompting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293441 CN202735979U (en) | 2012-06-20 | 2012-06-20 | Electromagnetic type electronic white board eraser with low electricity prompting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202735979U true CN202735979U (en) | 2013-02-13 |
Family
ID=47661660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220293441 Expired - Lifetime CN202735979U (en) | 2012-06-20 | 2012-06-20 | Electromagnetic type electronic white board eraser with low electricity prompting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202735979U (en) |
-
2012
- 2012-06-20 CN CN 201220293441 patent/CN202735979U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202735979U (en) | Electromagnetic type electronic white board eraser with low electricity prompting | |
| CN202167172U (en) | Substance conductivity testing pen | |
| CN202677320U (en) | Electromagnetic type electronic whiteboard pen with low battery indication | |
| CN204576873U (en) | A kind of laser pen | |
| CN201262687Y (en) | Clock with luminescent hand | |
| CN202647220U (en) | Portable solar energy illuminating device | |
| CN202694284U (en) | Rechargeable electronic whiteboard eraser | |
| CN105720809A (en) | Switching control circuit for single chip microcomputer | |
| CN203324366U (en) | Power supply voltage detection circuit | |
| CN102880371A (en) | Awakening system of resistive touch screen | |
| CN208654484U (en) | A kind of electronics flexible hydraulic epitaxial handwriting pad | |
| CN203085035U (en) | Sensitive resistor automatic control circuit demonstration instrument | |
| CN203444092U (en) | Switch-on/off experiment device for LED power supplies | |
| CN202008767U (en) | Automatic control demonstrating instrument with diode | |
| CN203675378U (en) | Constant current driving LED circuit | |
| CN203456886U (en) | Vehicle-mounted charging adapter applicable to mobile phones and tablet computers | |
| CN201066381Y (en) | Charging indictor | |
| CN203300899U (en) | Light emitting data line | |
| CN203549422U (en) | LED flashlight | |
| CN203057625U (en) | Indicating lamp control circuit | |
| CN205959167U (en) | A solar energy laser writing pen for terminal equipment | |
| CN203099356U (en) | Flashlight with multiple models of batteries compatible | |
| CN202838707U (en) | Electronic blackboard | |
| CN202794250U (en) | Multifunctional electronic testing pen | |
| CN202749059U (en) | LED (Light Emitting Diode) flashing electronic business card using flexible paper battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI HUASHI JINGCHENG NETWORK TECHNOLOGY CO., Free format text: FORMER OWNER: SHANGHAI HUASHI JINGCHENG HIGH NEW (GROUP) CO., LTD. Effective date: 20150215 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI HUASHI JINGCHENG HIGH NEW (GROUP) CO., LT Free format text: FORMER NAME: SHANGHAI HUASHI JINGCHENG HIGH-TECH. DEVELOPMENT CO., LTD. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201100 MINHANG, SHANGHAI TO: 200042 PUTUO, SHANGHAI |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201100, No. 817, D building, 4299 Jin Du Road, Shanghai, Minhang District Patentee after: SHANGHAI HSJC HIGH-TECH (GROUP) CO.,LTD. Address before: 201100, No. 817, D building, 4299 Jin Du Road, Shanghai, Minhang District Patentee before: Shanghai Huashi Jingcheng High-Tech Development Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150215 Address after: 200042 room 20, building 958, 315 North Main Road, Shanghai, Putuo District Patentee after: SHANGHAI HSJC NETWORK TECHNOLOGY Co.,Ltd. Address before: 201100, No. 817, D building, 4299 Jin Du Road, Shanghai, Minhang District Patentee before: SHANGHAI HSJC HIGH-TECH (GROUP) CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |