CN200966048Y - A mobile phone emergency charger - Google Patents
A mobile phone emergency charger Download PDFInfo
- Publication number
- CN200966048Y CN200966048Y CNU2006201316214U CN200620131621U CN200966048Y CN 200966048 Y CN200966048 Y CN 200966048Y CN U2006201316214 U CNU2006201316214 U CN U2006201316214U CN 200620131621 U CN200620131621 U CN 200620131621U CN 200966048 Y CN200966048 Y CN 200966048Y
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- resistance
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An emergency charger for cell phone is provided with a battery cover with internal thread and an iron spring is arranged in the battery cover. The battery cover is connected with the lower end of a battery square-cavity and the external threads are arranged at two heads of the battery square-cavity. The upper end of the battery square-cavity is connected with the lower end of a circuit square-cavity and the internal threads are arranged at the lower end of the circuit square-cavity and the upper end of the circuit square-cavity is provided with an opening. A working circuit board is placed in the circuit square-cavity and a power supply output port arranged on the working circuit board penetrates the opening of the upper end of the circuit square-cavity to be exposed externally outside the circuit square-cavity. The power supply output port is externally connected with a cell phone charging head and the cell phone charging head is manufactured in different models so as to adapt to the charging interfaces of cell phones of different type. The utility model can solve the technical problems of complicated structure, higher cost and no voltage, over-current, transient voltage and short-circuit protections existing in the prior art and assures the safety when the charger charges the cell phone.
Description
Technical field
The utility model relates to the charger technical field, refers more particularly to a kind of battery type charger for mobile phone that has voltage protection.
Background technology
The charger for mobile phone that is widely used at present mostly adopts the charge power supply of alternating current as mobile phone, and this class charger must use in having the place that exchanges point source, and condition is greatly limited, and uses very inconvenient; AC charger is provided with multiple electronic devices and components such as transformer because of inside, so volume and weight is bigger, being inconvenient to carry has also increased cost of manufacture.
In order to solve this type of problem, some battery type charger for mobile phone have also appearred on the market.These chargers are mostly by the single-unit dry cell power supply; charge power supply is provided for the cell-phone charging mobile phone of the most at present 3.6V of use lithium batteries with the method for the supply of current that boosts then; its core circuit of using is a booster circuit; and other supporting accessory circuit; its weak point is overvoltage, overcurrent protection and the transient voltage protection that electric current can't be provided; also can't provide short-circuit protection, the fail safe in the time of can't guaranteeing to charge.
The utility model provides a kind of battery type charger for mobile phone that has overvoltage, overcurrent, transient voltage protection and short-circuit protection; it is higher that it can solve complex structure, cost that prior art exists; and the technical barrier that does not have overvoltage, overcurrent, transient voltage protection and short-circuit protection, guarantee the fail safe when charger is given cell-phone charging.
The utility model content
The utility model is to realize in the following way: the battery type charger for mobile phone is provided with tapped battery cover, is provided with iron spring in the battery cover, and battery cover connects battery cavity volume lower end, and battery cavity volume two is provided with external screw thread.Connecting circuit cavity volume lower end, battery cavity volume upper end, circuit cavity volume lower end is provided with internal thread, and there is an opening upper end.The inner operating circuit plate of placing of circuit cavity volume, the operating circuit plate has an output port of power source, passes the opening of circuit cavity volume upper end, expose to circuit cavity volume outside, the external cell-phone charging head of output port of power source, the cell-phone charging head has different model, to adapt to the charging inlet of different model mobile phone.
Described operating circuit plate comprises transient voltage suppressor TV1, capacitor C1, and capacitor C2, inductance L 1, resistance R 1, resistance R 2, resistance R 3, diode D1, diode D2, light-emitting diode D3, NMOS manages Q1, boost control chip CT.The end of capacitor C1 connects inductance L 1, and the end of capacitor C1 connects the negative electricity input of battery, and the other end of inductance L 1 connects NMOS pipe Q1, and the other end of NMOS pipe Q1 connects boost control chip CT; The end of light-emitting diode D3 is connected the tie point of capacitor C1 and inductance L 1, this tie point inserts the positive electrical input of battery, the light-emitting diode D3 other end connects resistance R 3, resistance R 3 other ends connect diode D2, the other end of diode D2 connects diode D1, and the tie point of the tie point of diode D1 and diode D2 and inductance L 1 and NMOS pipe Q1 joins; The diode D other end 1 is connected with FB end, capacitor C2, transient voltage suppressor TV1, the resistance R 1 of boost control chip CT; The other end of resistance R 1 connects resistance R 2, and the tie point of resistance R 1 and resistance R 2 is connected vdd terminal and the EN end of boost control chip CT, the other end ground connection of resistance R 2; Capacitor C2 other end ground connection; The end that transient voltage suppressor TV1 is connected with diode D1 is charging positive output, and the other end is the charging negative output.
Description of drawings
1, Fig. 1 is the utility model structural representation;
2, Fig. 2 is the utility model STRUCTURE DECOMPOSITION schematic diagram;
3, Fig. 3 is the utility model operating circuit structural representation;
4, Fig. 4 is the utility model work schematic diagram;
Embodiment
The battery type charger for mobile phone is provided with the battery cover (1) of band internal thread (11), is provided with iron spring (12) in the battery cover (1), and battery cover (1) connects battery cavity volume (2) lower end, and battery cavity volume (2) two is provided with external screw thread (21).Connecting circuit cavity volume (3) lower end, battery cavity volume (2) upper end, circuit cavity volume (3) lower end is provided with internal thread (31), and there is an opening (32) upper end.The inner operating circuit plate (33) of placing of circuit cavity volume (3), operating circuit plate (33) has an output port of power source (34), pass the opening (32) of circuit cavity volume (3) upper end, expose to circuit cavity volume (3) outside, the external cell-phone charging head of output port of power source (34) (4), cell-phone charging head (4) has different model, to adapt to the charging inlet of different model mobile phone.
Described operating circuit plate (33) comprises transient voltage suppressor TV1, capacitor C1, and capacitor C2, inductance L 1, resistance R 1, resistance R 2, resistance R 3, diode D1, diode D2, light-emitting diode D3, NMOS manages Q1, opens pressure-controlled chip CT.The end of capacitor C1 connects inductance L 1, and the end of capacitor C1 connects the negative electricity input of battery, and the other end of inductance L 1 connects NMOS pipe Q1, and the other end of NMOS pipe Q1 connects boost control chip CT; The end of light-emitting diode D3 is connected the tie point of capacitor C1 and inductance L 1, this tie point inserts the positive electrical input of battery, the light-emitting diode D3 other end connects resistance R 3, resistance R 3 other ends connect diode D2, the other end of diode D2 connects diode D1, and the tie point of the tie point of diode D1 and diode D2 and inductance L 1 and NMOS pipe Q1 joins; The diode D other end 1 is connected with FB end, capacitor C2, transient voltage suppressor TV1, the resistance R 1 of boost control chip CT; The other end of resistance R 1 connects resistance R 2, and the tie point of resistance R 1 and resistance R 2 is connected vdd terminal and the EN end of boost control chip CT, the other end ground connection of resistance R 2; Capacitor C2 other end ground connection; The end that transient voltage suppressor TV1 is connected with diode D1 is charging positive output, and the other end is the charging negative output.
During use, turn on battery cover (1), toward battery cavity volume (2) No. 5 dry cells (5) of packing into, an end of charging head (4) is inserted output port of power source (34), the other end inserts the charging inlet of mobile phone (6).This moment, cell voltage was imported from capacitor C1 two ends, voltage is 1.5 volts to 3 volts, capacitor C1 filtering clutter, boost control chip CT determines self needed electric current according to the size of load, thereby control conducting and the disconnection of NMOS pipe Q1 with certain frequency, begin to get ready for battery electric quantity is converted into the mobile phone electric weight to inductance L 1 savings electric weight; The conducting of NMOS pipe Q1 and the frequency of disconnection are higher, make light-emitting diode D3 conducting luminous, regulate the brightness of the resistance controlled amount system light-emitting diode D3 of resistance R 3.By the continuous switch conduction of diode D1, the inductance L 1 after the savings electric weight is full begins to discharge electric weight; Capacitor C2 is the electric weight filtering clutter from inductance L 1 output, and this moment, the voltage of output was about 5.9 volts, and the voltage of output is by transient voltage suppressor TV1, and transient voltage suppressor TV1 suppresses certain voltage output; The inhibition voltage of transient voltage suppressor TV1 is 6.3 volts, regulates the size of the resistance controlled amount system output voltage of resistance R 1 and resistance R 2.Thereby provide overvoltage, overcurrent protection and the transient voltage protection of electric current, for mobile phone provides safe charging.After cell-phone charging finishes, pull up charging head, this moment, the frequency of NMOS pipe Q1 switch conduction was fallen very lowly at once, made light-emitting diode D3 not luminous substantially.
In sum, the utility model is a easy to use, and is simply portable, the emergent charger for cell phone that security performance is very high.
Claims (3)
1. emergent charger for cell phone, by battery cover (1), battery cavity volume (2), circuit cavity volume (3), operating circuit plate (33), cell-phone charging head (4) is formed, it is characterized in that: described operating circuit plate (33) comprises transient voltage suppressor TV1, capacitor C1, capacitor C2, inductance L 1, resistance R 1, resistance R 2, resistance R 3, diode D1, diode D2, light-emitting diode D3, NMOS manages Q1, boost control chip CT, the end of capacitor C1 connects inductance L 1, the end of capacitor C1 connects the negative electricity input of battery, and the other end of inductance L 1 connects NMOS pipe Q1, and the other end of NMOS pipe Q1 connects boost control chip CT; The end of light-emitting diode D3 is connected the tie point of capacitor C1 and inductance L 1, this tie point inserts the positive electrical input of battery, the light-emitting diode D3 other end connects resistance R 3, resistance R 3 other ends connect diode D2, the other end of diode D2 connects diode D1, and the tie point of the tie point of diode D1 and diode D2 and inductance L 1 and NMOS pipe Q1 joins; The diode D other end 1 is connected with FB end, capacitor C2, transient voltage suppressor TV1, the resistance R 1 of boost control chip CT; The other end of resistance R 1 connects resistance R 2, and the tie point of resistance R 1 and resistance R 2 is connected vdd terminal and the EN end of boost control chip CT, the other end ground connection of resistance R 2; Capacitor C2 other end ground connection; The end that transient voltage suppressor TV1 is connected with diode D1 is charging positive output, and the other end is the charging negative output.
2. a kind of emergent charger for cell phone according to claim 1 is characterized in that: there is an opening circuit cavity volume (2) upper end.
3. a kind of emergent charger for cell phone according to claim 1 is characterized in that: operating circuit plate (33) has an output port of power source (34), passes the opening (32) of circuit cavity volume (3) upper end, exposes to circuit cavity volume (3) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201316214U CN200966048Y (en) | 2006-08-25 | 2006-08-25 | A mobile phone emergency charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201316214U CN200966048Y (en) | 2006-08-25 | 2006-08-25 | A mobile phone emergency charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200966048Y true CN200966048Y (en) | 2007-10-24 |
Family
ID=38870067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201316214U Expired - Fee Related CN200966048Y (en) | 2006-08-25 | 2006-08-25 | A mobile phone emergency charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200966048Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201600A (en) * | 2010-03-25 | 2011-09-28 | 陈建鑫 | Travelling emergency charger |
-
2006
- 2006-08-25 CN CNU2006201316214U patent/CN200966048Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201600A (en) * | 2010-03-25 | 2011-09-28 | 陈建鑫 | Travelling emergency charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Lin Feng Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Lin Feng Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071024 Termination date: 20120825 |