CN201766378U - Charger capable of automatically cutting off power - Google Patents
Charger capable of automatically cutting off power Download PDFInfo
- Publication number
- CN201766378U CN201766378U CN201020245851XU CN201020245851U CN201766378U CN 201766378 U CN201766378 U CN 201766378U CN 201020245851X U CN201020245851X U CN 201020245851XU CN 201020245851 U CN201020245851 U CN 201020245851U CN 201766378 U CN201766378 U CN 201766378U
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- CN
- China
- Prior art keywords
- power
- charger
- charging
- midget relay
- battery
- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a charger capable of automatically cutting off power after the charging process is finished. When the output end of the charger is connected to a battery, and the power cord of the charger is connected to the commercial power, a power indicator is on, and the power is supplied. When a starting button is pressed, a charging indicator light-emitting diode (LED) is on, a midget relay is picked up, and the normally open contacts of another midget relay connected with the starting button in parallel are closed. After the starting button is released, the power supply is still capable of supplying power to a charging control panel until the battery is fully charged, the charging indicator LED is off, the normally open contacts of the midget relay are opened, and the power is cut off. If the output end is not well contacted with the battery, or is even more not connected with the battery, the charging indicator LED gives no light and the midget relay is not picked up after the starting button is pressed, and the power is cut off when the starting button is released. The charger has the advantages of energy conservation and no damage to the battery and the charger when the commercial power is cut off and the power supply is abnormal.
Description
Technical field
The utility model relates to a kind of charger, particularly relates to a kind of charger that can cut off the power supply automatically.
Background technology
The charger of equipment such as common electric motor car, mobile phone still with little current work, not only influences the useful life of charger after charging is finished, also cause unnecessary energy consumption simultaneously.
Summary of the invention
In order to overcome above-mentioned shortcoming, the utility model provides a kind of charger that can cut off the power supply automatically after charging is finished.
The utility model is to be made of power supply indication light-emitting diode, divider resistance, start button, charging panel, charging indication light-emitting diode, midget relay; It is characterized in that: midget relay is in parallel with charging indication light-emitting diode; Start button be series at power line between the charging panel after the normally opened contact of midget relay is in parallel; Power supply indication light-emitting diode be electrically connected on two preceding power lines of start button after divider resistance is connected.
The technical scheme that its technical problem that solves the utility model adopts is: after the energized, the power supply indication lumination of light emitting diode with being electrically connected on after divider resistance is connected on the power line shows the power supply on; Since start button be Chang Kai with the normally opened contact parallel connection of midget relay after connect and power line between the charging panel, charging panel must not, no-voltage on the charging indication light-emitting diode, the midget relay in parallel with charging indication light-emitting diode be no-voltage also, so can not adhesive.Press start button, power supply is powered to charging panel by start button, if this moment, output was connected to battery, then charging indication light-emitting diode and midget relay are added with voltage simultaneously, charging indication lumination of light emitting diode, the midget relay adhesive, the midget relay in parallel closure of often making war with start button, start button unclamps the back power supply and still can power for charging panel, charging after the battery abundance, the indication LED light lamp is gone out, midget relay dead electricity normally opened contact reopens, and power supply is disconnected; As when pressing start button, output does not connect battery, and then charging indication light-emitting diode is not luminous, not adhesive of midget relay, and power supply disconnects again during release button.
The invention has the beneficial effects as follows: save the energy, the undesired power supply in back that prevents to have a power failure damages battery and charger.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is an embodiment of the present utility model.
1 power line among the figure, 2 shells, 3 divider resistances, 4 power supplys indication light-emitting diode, 5 midget relay normally opened contacts, 6 start buttons, 7 charging panels, 8 charging indication light-emitting diodes, 9 midget relaies, 10 outputs.
Embodiment
As can be seen from Figure 1, midget relay 9 is in parallel with charging indication light-emitting diode 8 in shell 2; Be series at power line 1 between the charging panel 7 after the normally opened contact 5 of start button 6 and midget relay is in parallel; On power supply indication light-emitting diode 4 two power lines 1 preceding with being electrically connected on start button 6 after divider resistance 3 is connected.
Below in conjunction with accompanying drawing embodiments of the invention are further described:
Fig. 2 is an electric car charger, has increased a start button 6 than common charger from the appearance.When output is connected on the battery, when power line inserted civil power, power supply indicator 4 was lighted, and power connection is described.Press 6 charging indications of start button light-emitting diode 8 and be added with voltage simultaneously with midget relay 9, charging indication light-emitting diode 8 is luminous, midget relay 7 adhesives, normal 5 closures of making war of the midget relay in parallel with start button 6, start button 6 unclamps the back power supply still can be charging panel 7 power supplies, charging after the battery abundance, indication light-emitting diode 8 lamps go out, midget relay 9 dead electricity normally opened contacts 5 are opened, and power supply is disconnected.If contact bad between output 10 and the battery or do not connect battery, charging indication light-emitting diode 8 is not luminous when then pressing start button 6, midget relay 9 not adhesives, and power supply disconnects again during release button 6.
The present invention is equally applicable on the charger of equipment such as mobile phone.
Claims (1)
1. charger that can cut off the power supply automatically, it is to be made of power supply indication light-emitting diode, divider resistance, start button, charging panel, charging indication light-emitting diode, midget relay; It is characterized in that: the midget relay coil is in parallel with charging indication light-emitting diode; Start button be series at power line between the charging panel after the normally opened contact of midget relay is in parallel; Power supply indication light-emitting diode be electrically connected on two preceding power lines of start button after divider resistance is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020245851XU CN201766378U (en) | 2010-06-20 | 2010-06-20 | Charger capable of automatically cutting off power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020245851XU CN201766378U (en) | 2010-06-20 | 2010-06-20 | Charger capable of automatically cutting off power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201766378U true CN201766378U (en) | 2011-03-16 |
Family
ID=43718985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020245851XU Expired - Fee Related CN201766378U (en) | 2010-06-20 | 2010-06-20 | Charger capable of automatically cutting off power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201766378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923382A (en) * | 2018-09-05 | 2018-11-30 | 成都彩虹电器（集团）股份有限公司 | The line disconnection protector of three core power supply lines |
| CN112751385A (en) * | 2020-12-29 | 2021-05-04 | 蚌埠睿德新能源科技有限公司 | Charging power line |
-
2010
- 2010-06-20 CN CN201020245851XU patent/CN201766378U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923382A (en) * | 2018-09-05 | 2018-11-30 | 成都彩虹电器（集团）股份有限公司 | The line disconnection protector of three core power supply lines |
| CN108923382B (en) * | 2018-09-05 | 2024-02-06 | 成都彩虹电器（集团）股份有限公司 | Broken wire protector for three-core power line |
| CN112751385A (en) * | 2020-12-29 | 2021-05-04 | 蚌埠睿德新能源科技有限公司 | Charging power line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20110620 |