CN201750171U - Novel traveling emergency charger - Google Patents
Novel traveling emergency charger Download PDFInfo
- Publication number
- CN201750171U CN201750171U CN2010201453542U CN201020145354U CN201750171U CN 201750171 U CN201750171 U CN 201750171U CN 2010201453542 U CN2010201453542 U CN 2010201453542U CN 201020145354 U CN201020145354 U CN 201020145354U CN 201750171 U CN201750171 U CN 201750171U
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- charging
- pin
- voltage
- charger
- control circuit
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an emergency charger of a mobile phone, in particular to a traveling emergency charger, which comprises a case, wherein the case is provided with a dry battery groove for placing dry batteries, the front end of the dry battery groove is fixedly provided with a control circuit board, the control circuit board is connected and provided with a charging plug connected with a charging socket of the mobile phone, four spring contact sheets are arranged in the dry battery groove, four No.5 dry batteries used as charging power supplies are arranged among the four spring contact sheets, and the four No.5 dry batteries are directly inserted into equipment charging holes for charging through the charging plug after being connected in series and carrying out voltage boosting and reducing treatment by the control circuit board. The traveling emergency charger has the advantages that the four No.5 dry batteries are used as the charging power supplies, the charging process is controlled by a microcomputer chip, the speed is high, and the efficiency is high. When the novel traveling emergency charger is used for charging the mobile phone or camera batteries, the goal of electricity utilization can be reached, and at the same time, the charging capacity of the novel traveling emergency charger is not different from that of the normal charging at all. The novel traveling emergency charger can be used for supplementary charging on the battery of the mobile phone at any time in any place.
Description
Technical field
The utility model relates to the emergent charger of a kind of mobile phone, relate in particular to mobile phone/camera in the road of going on business and travelling/device battery electric weight such as MP3 and use up, and seek the new tourism charger for emergency that uses dry cell to carry out boost charge less than under the situation of fixing AC Power supply socket.
Background technology
Along with the continuous progress of scientific and technological level, all trades and professions very large technological innovation also occurred and have improved.At present, general charger for mobile phone has two kinds, first kind is direct filling type, this charger is by power transformer socket, power supply output line, the mobile phone socket end is formed, second kind is to be commonly called as travelling to fill, and it forms (AC Power supply socket that these two kinds of chargers all need to fix could be carried out boost charge to battery of mobile phone) by simple charge pin, integrated rectification circuit, charging contact, spring clip.But he concerning be away from home and the people of travelling in the open air, when particularly carrying out operation in the open air usually battery of mobile phone do not have electricity and can not find charge power supply and worry, so the straight-charging type and the charger for mobile phone fill of travelling can not solve this kind situation.
In order to overcome the deficiency that existing charger for mobile phone will have fixing AC socket and power supply to charge to battery of mobile phone, the inventor has developed the utility model " a kind of new tourism charger for emergency ".
The utility model content
The utility model at above-mentioned the deficiencies in the prior art technical problem to be solved is: a kind of new tourism charger for emergency is provided.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of new tourism charger for emergency, comprise shell, described shell is provided with the dry cell groove that is used to place dry cell, the front end of dry cell groove is installed with control circuit board, control circuit board is provided with a charging plug that joins with the cell-phone charging socket, be provided with four spring contact plates in the dry cell groove, be provided with 4 No. 5 dry cells between four spring contact plates as charge power supply, carry out directly inserting the equipment charge hole by charging plug after buck is handled through control circuit board after 4 No. 5 dry cells series connection and charge.
The control circuit of described control circuit board comprises a power management chip, and this power management chip has 6 pins, and pin one is the switch pin, is connected with inductance between switch pin and the pin 6, and inductance and inner metal-oxide-semiconductor are formed oscillation circuit; Pin two is signal and power supply ground; Pin 3 is the feedback input end of internal error amplifier, connect two resistance (R1 R2) dividing potential drop between output and the ground, again branch is crimped onto this pin, two resistance (R1 R2) are centesimal precision resistance for error, by non-essential resistance R2 the switching frequency of height to 1.5MHz is provided with, and can makes oscillator and external clock synchronous; Pin 4 is logic-enabled switch pin position; Pin 5 is the drain electrode (D) of output voltage detection input and inner synchronous rectification MOSFET, and the bias voltage source of the G utmost point of MOS FET is in vain in output; Pin 6 is a voltage input end, and voltage input end is given starting resistor of power management chip IC, and when the voltage of voltage output end is higher than voltage input end voltage, the bias voltage of MOSFET will obtain from voltage output end.
Described power management chip model is HX8001.
Described equipment charge hole comprises mobile phone, camera or MP3 charging hole.
The beneficial effect of a kind of new tourism charger for emergency of the utility model is:
As charge power supply, by adopting microcomputer chip control charging process, speed is fast, the efficient height by No. 5 batteries of 4 joints.Show the charging operating state by LED during charging.That this scheme has is simple in structure, safety, convenience, attractive in appearance, generous, small and exquisite, simple to operate, be easy to carry and to the characteristics of most 3.6V or 3.7V lithium ion mobile phone/camera battery charging.By this new tourism charger for emergency mobile phone or camera battery are charged, can reach the purpose of electricity consumption, do not have basic difference with the normal charge electric weight simultaneously.Can in the open air or the travelling process in battery of mobile phone do not have electricity and battery of mobile phone carried out boost charge whenever and wherever possible, saved the worry of looking for the cell-phone charging power supply to cause easily everywhere.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an overall structure left view of the present utility model;
Fig. 2 is an overall structure front section view of the present utility model;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is a control circuit schematic diagram of the present utility model.
Description of reference numerals:
1, spring contact plate 2, plastic casing 3, charger dry cell groove
4, circuit board 5, charging plug
Embodiment
The utility model is to implement like this:
At Fig. 1, among Fig. 2 and Fig. 3, a kind of new tourism charger for emergency, comprise shell 2, it is characterized in that: described shell 2 is provided with the dry cell groove 3 that is used to place dry cell, the front end of dry cell groove 3 is installed with control circuit board 4, control circuit board 4 is provided with a charging plug 5 that joins with the cell-phone charging socket, the dry cell groove is provided with four spring contact plates 1 for 3 li, be provided with 4 No. 5 dry cells between four spring contact plates 1 as charge power supply, carry out directly inserting the equipment charge holes by charging plug 5 after buck is handled through control circuit board 4 after 4 No. 5 dry cells series connection and charge.
The basic size of present embodiment is 70W * 135H * 38D, by four spring contact plates of charger plastic battery groove, utilize 4 No. 5 dry cells as main charge power supply, carry out inter-process through the main circuit version after 4 No. 5 dry cells series connection, directly insert the cell-phone charging hole by charging plug after handling and charge.Have conveniently, safe, practical, attractive in appearance, succinct advantage.
Generally speaking, when to cell-phone charging, dry cell carries out efficiency by power management chip to be handled, and carries out constant voltage charge to battery of mobile phone.
In Fig. 4, the power management chip that this circuit adopts is WZ777, it is a step-down one efficient, fixed frequency the DC/DC transducer that boosts, can be higher than, be less than or equal at input voltage under the situation of output voltage and operate, select thereby become the ideal that output voltage is in single-unit lithium ion battery, more piece alkaline battery or NiMH battery applications in the battery voltage range.
Can utilize a non-essential resistance R2 that the switching frequency of height to 1.5MHz is provided with, and can make oscillator and external clock synchronous.In the light load mode operation, quiescent current is 100uA only, thereby has prolonged the galvanic action life-span in the portable use to greatest extent.The light load mode operation is controlled by the user, and can enable by external pin is urged to high level.If external pin has a clock or is driven to low level, then can become the fixed frequency switching manipulation.
Other characteristics of this transducer also comprise electric current, and only shutdown mode, control of soft, the heat of 1uA are shut down and current limit.HX8001 adopts thermal characteristics enhancement mode 10 pin SOT-23-6 encapsulation.
Characteristics:
High efficiency: up to 96%
Low voltage starting: 0.9V
Input voltage range: 0.6V to 4.4V
Output voltage range: 2.5V to 5V (fixing/scalable)
1.4MHz constant frequency operation
Low on-resistance RDS (ON) internal switch: 0.35～2
Short-circuit protection
High switching current: 1A
Need not Schottky diode (VOUT＜4.3V)
Ultralow shutdown electric current: IQ＜1uA
Little external form SOT-23-6 encapsulation (Lead-free in Electronic Packaging)
The IC pin definitions
Pin one): the switch pin.Between 1 and 6, connect inductance (L1), form oscillation circuit with inner metal-oxide-semiconductor.
Pin two): signal and power supply ground.
Pin 3): the feedback input end of internal error amplifier.Connect two resistance (R1R2) dividing potential drop between output and the ground, branch is crimped onto this pin again, should adopt error is centesimal precision resistance.
Pin 4): logic-enabled switch pin position.
Pin 5): output voltage detects the drain electrode (D) of input and inner synchronous rectification MOSFET.The bias voltage source of the G utmost point of MOSFET is in vain in output.
Pin 6): voltage input end.VIN gives starting resistor of IC, when VOUT greater than VIN, the bias voltage of MOSFET will obtain from output.
Output and input filter capacitor (C1 C2) input and output filtering usefulness adopt multi-layer ceramic capacitance diode (D1) switch concussion usefulness, adopt the low switching tube of forward voltage drop.(D2) be to send out to work as diode.Play indicative function.
In the circuit diagram of Fig. 4, its circuit has following characteristic in addition:
Be up to 96% efficient.
Low start voltage: 0.9V.
Cut-off current: less than 1UA.
Input voltage: 0.9-6V.
Output voltage: 2.5-5.6V.
Low switch conducting resistance (RDS): less than 0.35 ohm.
1.5MHZ fixed switching frequency.
High switch road galvanization: 1A.
If the internal short-circuit protective circuit, circuit is more stable.
The emergent scheme characteristics of filling of booster circuit mobile phone in Fig. 4:
1. starting resistor is low.
2. bigger charging current: single-unit energy charging current 300mA, binodal 500mA.
3. high battery utilance: in the charging process, input voltage is detected, when input voltage reduced, output current can reduce simultaneously.Like this, when trickle charge, even cell voltage is low to 0.7V (single-unit), 1.5V (binodal) can also keep charging.
4. power output protection: have the dynamic load regulation, adjust power output, when output current is excessive, reduce output voltage to keep constant power output according to the size of output current.
5. high efficiency: have very high efficient. the single-unit scheme is when input 1.5V, and efficient is greater than 75%; Even the efficient more than 70% is also arranged during the 1V input voltage, the efficient of binodal scheme even up to 88%.
The above, it only is the preferred embodiment of a kind of new tourism charger for emergency of the utility model, be not that technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model above any trickle modification, equivalent variations and modification that embodiment did.
Claims (4)
1. new tourism charger for emergency, comprise shell (2), it is characterized in that: described shell (2) is provided with the dry cell groove (3) that is used to place dry cell, the front end of dry cell groove (3) is installed with control circuit board (4), control circuit board (4) is provided with a charging plug (5) that joins with the cell-phone charging socket, dry cell groove (3) lining is provided with four spring contact plates (1), be provided with 4 No. 5 dry cells between four spring contact plates (1) as charge power supply, carry out directly inserting the equipment charge hole by charging plug (5) after buck is handled through control circuit board (4) after 4 No. 5 dry cells series connection and charge.
2. a kind of new tourism charger for emergency according to claim 1, the control circuit that it is characterized in that described control circuit board (4) comprises a power management chip, this power management chip has 6 pins, pin one is the switch pin, be connected with inductance (L1) between switch pin and the pin 6, inductance (L1) is formed oscillation circuit with inner metal-oxide-semiconductor; Pin two is signal and power supply ground; Pin 3 is the feedback input end of internal error amplifier, connect two resistance (R1 R2) dividing potential drop between output and the ground, again branch is crimped onto this pin, two resistance (R1 R2) are centesimal precision resistance for error, by non-essential resistance R2 the switching frequency of height to 1.5MHz is provided with, and can makes oscillator and external clock synchronous; Pin 4 is logic-enabled switch pin position; Pin 5 is the drain electrode (D) of output voltage detection input and inner synchronous rectification MOSFET, and the bias voltage source of the G utmost point of MOSFET is in vain in output; Pin 6 is a voltage input end, and voltage input end is given starting resistor of power management chip IC, and when the voltage of voltage output end is higher than voltage input end voltage, the bias voltage of MOSFET will obtain from voltage output end.
3. a kind of new tourism charger for emergency according to claim 2 is characterized in that described power management chip model is HX8001.
4. a kind of new tourism charger for emergency according to claim 1 is characterized in that described equipment charge hole is mobile phone, camera or MP3 charging hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201453542U CN201750171U (en) | 2010-03-25 | 2010-03-25 | Novel traveling emergency charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201453542U CN201750171U (en) | 2010-03-25 | 2010-03-25 | Novel traveling emergency charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201750171U true CN201750171U (en) | 2011-02-16 |
Family
ID=43584843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201453542U Expired - Fee Related CN201750171U (en) | 2010-03-25 | 2010-03-25 | Novel traveling emergency charger |
Country Status (1)
| Country | Link |
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| CN (1) | CN201750171U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201600A (en) * | 2010-03-25 | 2011-09-28 | 陈建鑫 | Travelling emergency charger |
| US8874179B2 (en) * | 2012-02-27 | 2014-10-28 | Lg Electronics Inc. | Mobile terminal |
| CN104965375A (en) * | 2015-06-16 | 2015-10-07 | 成都西可科技有限公司 | Camera capable of externally connecting extra battery for charging |
| CN107069853A (en) * | 2014-01-28 | 2017-08-18 | 广东欧珀移动通信有限公司 | Start the detection circuit and method of charging |
-
2010
- 2010-03-25 CN CN2010201453542U patent/CN201750171U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201600A (en) * | 2010-03-25 | 2011-09-28 | 陈建鑫 | Travelling emergency charger |
| US8874179B2 (en) * | 2012-02-27 | 2014-10-28 | Lg Electronics Inc. | Mobile terminal |
| CN107069853A (en) * | 2014-01-28 | 2017-08-18 | 广东欧珀移动通信有限公司 | Start the detection circuit and method of charging |
| CN107069853B (en) * | 2014-01-28 | 2019-04-26 | Oppo广东移动通信有限公司 | Start the detection circuit and method of charging |
| US10931125B2 (en) | 2014-01-28 | 2021-02-23 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Detection circuit and method for starting charging |
| CN104965375A (en) * | 2015-06-16 | 2015-10-07 | 成都西可科技有限公司 | Camera capable of externally connecting extra battery for charging |
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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: 20110216 Termination date: 20130325 |