CN202309135U - Lithium battery charging prompter - Google Patents
Lithium battery charging prompter Download PDFInfo
- Publication number
- CN202309135U CN202309135U CN2011204113405U CN201120411340U CN202309135U CN 202309135 U CN202309135 U CN 202309135U CN 2011204113405 U CN2011204113405 U CN 2011204113405U CN 201120411340 U CN201120411340 U CN 201120411340U CN 202309135 U CN202309135 U CN 202309135U
- Authority
- CN
- China
- Prior art keywords
- detection circuit
- triode
- utility
- buzzer
- current detection
- 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 - Fee Related
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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a lithium battery charging indicator which is characterized by comprising a current detection circuit and a prompting device, wherein the current detection circuit is used for detecting the current magnitude changes, and the prompting device is connected with the current detection circuit; the circuit detection circuit comprises a resistor R13, an operational amplifier U1B, a triode 2N2222 and an MCU (microprogrammed control unit); the resistor R13 is connected with the operational amplifier U1B; the operational amplifier U1B is connected with the triode 2N2222; the triode 2N2222 is connected with the MCU; and the prompting device comprises an LED (light-emitting diode) lamp, a buzzer and a display screen, or any one or two of the LED lamp, buzzer and display screen. By using the current detection circuit and the prompting device, the utility model can prompt the charging state in real time, has simple structure and circuit, and is convenient to use.
Description
Technical field
The utility model relates to the charge prompting device, more particularly, relates to a kind of lithium cell charging prompting device.
Background technology
At present, lithium battery because of its high-energy-density, high voltage, pollution-free, cycle life is high, the characteristics of memory-less effect, quick charge receive everybody favor, has become main flow.Existing electronic product generally all adopts lithium battery as power supply.
But, numerous electronic products, mobile phone for example, when charging, majority is not indication or when charging is full, prompting just can occurs that inconvenient user uses.
The utility model content
The utility model technical problem to be solved is, but a kind of lithium cell charging prompting device of real-time reminding charged state is provided.
The technical scheme that the utility model technical solution problem adopts is: a kind of lithium cell charging indicating device, it is characterized in that, and comprise that one is used to detect the current detection circuit and the suggestion device that is connected with current detection circuit that size of current changes.
Said electric circuit inspection circuit comprises resistance R 13, amplifier U1B, triode 2N2222 and MCU, and said resistance R 13 is connected with amplifier U1B, and amplifier U1B is connected with triode 2N2222, and triode 2N2222 is connected with MCU.
Said suggestion device comprises LED lamp, buzzer and display screen, also can be in LED lamp, buzzer and the display screen any or wantonly two kinds of combinations.
According to the utility model of said structure, its beneficial effect is, the utility model can pass through and be used to detect testing circuit and the suggestion device that size of current changes, the real-time prompting charged state, and structure, circuit are simple, easy to use.
Description of drawings
Fig. 1 is the utility model circuit structure diagram.
Embodiment
Below in conjunction with accompanying drawing and execution mode the utility model is further described:
As shown in Figure 1, a kind of lithium cell charging indicating device comprises that one is used to detect the current detection circuit and the suggestion device that is connected with current detection circuit that size of current changes.Said electric circuit inspection circuit comprises resistance R 13, amplifier U1B, triode 2N2222 and MCU, and said resistance R 13 is connected with amplifier U1B, and amplifier U1B is connected with triode 2N2222, and triode 2N2222 is connected with MCU.The P61 of said MCU and P53 are connected with LED2 and LED3 respectively, and the P66 pin of said MCU is connected with buzzer.
The utility model can be used as a connector; Be connected in charging device and be equipped with between the electronic product of lithium battery; For example be connected between mobile phone and the charger for mobile phone; The charging current that detects charging circuit when the utility model is during at specific scope electric current, and MCU will send LED from flashing different frequencies to indicate current lithium cell charging state.
The charging current that detects charging circuit when the utility model is during less than specific a kind of threshold current, and MCU will send lithium battery and be full of indication, and LED and sounds a buzzer from flashing to lighting.
Said suggestion device be in LED lamp, buzzer and the display screen any; Or be wantonly two kinds of combinations in LED lamp, buzzer and the display screen; Also can comprise LED lamp, buzzer and display screen.
Though the utility model is described with reference to the above embodiments; But those of ordinary skill in the art can recognize very clearly that fully above embodiment is used to explain the utility model; Wherein can make variations and modifications and not break away from the utility model in a broad sense; So be not as qualification to the utility model; As long as in the connotation scope of the utility model, all will fall within the protection range that the utility model requires variation, the distortion of above-described embodiment.
Claims (5)
1. a lithium cell charging indicating device is characterized in that: comprise that one is used to detect the current detection circuit and the suggestion device that is connected with current detection circuit that size of current changes.
2. a kind of lithium cell charging indicating device according to claim 1; It is characterized in that: said electric circuit inspection circuit comprises resistance R 13, amplifier U1B, triode 2N2222 and MCU; Said resistance R 13 is connected with amplifier U1B; Amplifier U1B is connected with triode 2N2222, and triode 2N2222 is connected with MCU.
3. a kind of lithium cell charging indicating device according to claim 1 is characterized in that: said suggestion device be in LED lamp, buzzer and the display screen any.
4. a kind of lithium cell charging indicating device according to claim 1 is characterized in that: said suggestion device is wantonly two kinds of combinations in LED lamp, buzzer and the display screen.
5. a kind of lithium cell charging indicating device according to claim 1, it is characterized in that: said suggestion device comprises LED lamp, buzzer and display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204113405U CN202309135U (en) | 2011-10-26 | 2011-10-26 | Lithium battery charging prompter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204113405U CN202309135U (en) | 2011-10-26 | 2011-10-26 | Lithium battery charging prompter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309135U true CN202309135U (en) | 2012-07-04 |
Family
ID=46377948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204113405U Expired - Fee Related CN202309135U (en) | 2011-10-26 | 2011-10-26 | Lithium battery charging prompter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309135U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025032A (en) * | 2013-01-05 | 2013-04-03 | 杭州纳晶照明技术有限公司 | LED lamp and device and method for driving LED light source of LED lamp |
| CN103151818A (en) * | 2013-03-21 | 2013-06-12 | 上海斐讯数据通信技术有限公司 | Charging indicating system |
| CN112186832A (en) * | 2020-09-07 | 2021-01-05 | 安徽绿沃循环能源科技有限公司 | Lithium battery charging and discharging indicating circuit |
-
2011
- 2011-10-26 CN CN2011204113405U patent/CN202309135U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025032A (en) * | 2013-01-05 | 2013-04-03 | 杭州纳晶照明技术有限公司 | LED lamp and device and method for driving LED light source of LED lamp |
| CN103151818A (en) * | 2013-03-21 | 2013-06-12 | 上海斐讯数据通信技术有限公司 | Charging indicating system |
| CN112186832A (en) * | 2020-09-07 | 2021-01-05 | 安徽绿沃循环能源科技有限公司 | Lithium battery charging and discharging indicating circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |