CN202677320U - Electromagnetic type electronic whiteboard pen with low battery indication - Google Patents
Electromagnetic type electronic whiteboard pen with low battery indication Download PDFInfo
- Publication number
- CN202677320U CN202677320U CN 201220293161 CN201220293161U CN202677320U CN 202677320 U CN202677320 U CN 202677320U CN 201220293161 CN201220293161 CN 201220293161 CN 201220293161 U CN201220293161 U CN 201220293161U CN 202677320 U CN202677320 U CN 202677320U
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- battery
- electromagnetic type
- electronic whiteboard
- anode
- electronic pen
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Abstract
The utility model relates to an electromagnetic type electronic whiteboard pen, in particular to an electromagnetic type electronic whiteboard pen with low battery indication. The electromagnetic type electronic whiteboard pen comprises a pen holder, wherein an electromagnetic wave transmitting module, a battery, a voltage detection circuit and an indicating lamp circuit are arranged in the pen holder; an input end VIN of the voltage detection circuit is connected with an anode of the battery; an output end OUT is connected with a cathode of the indicating lamp circuit; a ground end GND is connected with a cathode of the battery; and an anode of the indicating lamp circuit is connected with the anode of the battery through a switch SW1. A user of the electromagnetic type electronic whiteboard pen is timely reminded of whether the battery power is insufficient and whether the battery is required to be charged or replaced, and the phenomenon that the electronic whiteboard pen cannot be used due to insufficient battery power; and therefore, the using fluency of the electronic whiteboard is guaranteed, and the time of teachers and students is saved.
Description
Technical field
The utility model relates to a kind of electromagnetic type whiteboard electronic pen, relates in particular to a kind of electromagnetic type whiteboard electronic pen with low electricity prompting.
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.
Electronic pen great majority dry cell power supplies on the present market, minority is used charged lithium cells, sometimes in use electronic pen can not use suddenly, the user can not know in time whether battery has not had electricity, owing to can't in time change battery or charging, affect the use of electromagnetic electronic white board, because electronic whiteboard is often used in the class by teacher, affected large quantities of students' study and teacher's efficiency of teaching.
Summary of the invention
In view of above situation, the technical problems to be solved in the utility model is: the electromagnetic type whiteboard electronic pen is in practicality, the user can't find in time that whether battery electric quantity is not enough, causes the situation that can't change battery or have little time to charge temporarily, to such an extent as to affected the use of electromagnetic electronic white board.
The utility model provides a kind of electronic whiteboard electronic pen with low electricity prompting, comprise penholder, described penholder includes the electromagnetic wave transmitter module, battery also comprises voltage detection circuit, indicator light circuit in the described penholder, the input end VIN of described voltage detection circuit connects anode, output terminal OUT connects the negative pole of indicator light circuit, and ground end GND connects battery cathode, and described indicator light circuit is anodal to be connected with anode by switch SW 1 again.
Be connected again a resistance R 2 between described voltage detection circuit output terminal and the described anode.
The resistance R 1 of connecting again between described pilot lamp positive pole and the anode.
Described pilot lamp is light emitting diode.
Described pilot lamp is red light emitting diodes.
The beneficial effects of the utility model are: the user who in time reminds the electromagnetic type whiteboard electronic pen, 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.
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.
As shown in Figure 1, battery connects voltage detection circuit, and the output of voltage detection circuit connects indicator light circuit.
The physical circuit connection layout as shown in Figure 2, the input end of detecting voltage IC U1 connects the anodal VBAT of battery, the ground end 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 of detecting voltage IC U1, the output terminal of detecting voltage IC U1 connects the negative pole of pilot lamp D1, it is anodal that one end of resistance R 1 connects pilot lamp, resistance R 1 other end connects gauge tap SW1 one end, and the other end of gauge tap SW1 connects the anodal VBAT of battery.Pilot lamp D1 is red light emitting diodes.
Be higher than the voltage of detecting when cell voltage, detecting voltage IC U1 exports high level, if the user presses gauge tap SW1, electric potential difference is extremely low between the pilot lamp both positive and negative polarity, and pilot lamp D1 does not work, and illustrates that battery also has electricity, and electronic pen can normally use.
Be lower than the voltage of detecting when cell voltage, 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 large, pilot lamp D1 is bright, illustrates that battery electric quantity is not enough, and electronic pen can not normally use, change or charge battery, the user in time changes battery according to prompting or battery is charged.
The electronic pen dry cell of considering, some charged lithium cells of using, all can be different according to used battery, select the detecting voltage IC and the resistance R 1 of selecting different resistances of different detecting voltages.
Claims (5)
1. a band hangs down the electromagnetic type whiteboard electronic pen of electricity prompting, comprise penholder, described penholder includes the electromagnetic wave transmitter module, battery is characterized in that: also comprise voltage detection circuit, indicator light circuit in the described penholder, the input end VIN of described voltage detection circuit connects anode, output terminal OUT connects the negative pole of indicator light circuit, and ground end GND connects battery cathode, and described indicator light circuit is anodal to be connected with anode by switch SW 1 again.
2. the electromagnetic type whiteboard electronic pen of the low electricity prompting of band as claimed in claim 1 is characterized in that: be connected a resistance R 2 between described voltage detection circuit output terminal and the described anode again.
3. the electromagnetic type whiteboard electronic pen of the low electricity prompting of band as claimed in claim 1 or 2 is characterized in that: the resistance R 1 of connecting again between described pilot lamp positive pole and the anode.
4. the electromagnetic type whiteboard electronic pen of the low electricity prompting of band as claimed in claim 1 or 2 is characterized in that described pilot lamp is light emitting diode.
5. band as claimed in claim 4 hangs down the electromagnetic type whiteboard electronic pen of electricity prompting, and it is characterized in that: described light emitting diode is red light emitting diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293161 CN202677320U (en) | 2012-06-20 | 2012-06-20 | Electromagnetic type electronic whiteboard pen with low battery indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293161 CN202677320U (en) | 2012-06-20 | 2012-06-20 | Electromagnetic type electronic whiteboard pen with low battery indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202677320U true CN202677320U (en) | 2013-01-16 |
Family
ID=47498210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220293161 Expired - Lifetime CN202677320U (en) | 2012-06-20 | 2012-06-20 | Electromagnetic type electronic whiteboard pen with low battery indication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202677320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111989642A (en) * | 2018-02-26 | 2020-11-24 | 深圳市柔宇科技股份有限公司 | Handwriting pen, handwriting board and handwriting pen electric quantity obtaining method |
-
2012
- 2012-06-20 CN CN 201220293161 patent/CN202677320U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111989642A (en) * | 2018-02-26 | 2020-11-24 | 深圳市柔宇科技股份有限公司 | Handwriting pen, handwriting board and handwriting pen electric quantity obtaining method |
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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: 20150202 |
|
| 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: 20150202 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |