CN201117760Y - Portable mobile phone charger - Google Patents
Portable mobile phone charger Download PDFInfo
- Publication number
- CN201117760Y CN201117760Y CNU2007201914301U CN200720191430U CN201117760Y CN 201117760 Y CN201117760 Y CN 201117760Y CN U2007201914301 U CNU2007201914301 U CN U2007201914301U CN 200720191430 U CN200720191430 U CN 200720191430U CN 201117760 Y CN201117760 Y CN 201117760Y
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- CN
- China
- Prior art keywords
- electric conductor
- charging
- mobile phone
- pin
- output
- 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 - Lifetime
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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 discloses a portable mobile phone charger which includes a dry battery used for providing a charging direct current, a main charging circuit, a pin seat and a switch connector. One end of the switch connector is provided with a mobile phone charging pin; the other end of the switch connector is provided with a switch pin; the output end of the main charging circuit is connected with a first conductive body; the grounding end of the main charging circuit is connected with a first output endpoint; the cathode of the dry battery is connected with a second output endpoint; the contact point of the input end is connected with the positive input end of the mobile phone charging pin, a second conductive body is connected with the negative input end of the mobile phone charging pin; a first output end contact point is matched with a second output end contact point and the second conductive body; the first conductive body and the input end contact point are mutually matched. The portable mobile phone charger has the advantage that when the switch pin is pulled out, the cathode of the dry battery and the grounding end of the main charging circuit are not connected mutually; thereby not generating any static working current.
Description
Technical field
The utility model relates to a kind of charger for mobile phone, especially relates to a kind of portable charger for handset.
Background technology
Existing charger for mobile phone mostly is the AC type charger for mobile phone greatly, and its volume is big and heavy, and it is not too convenient to carry, and must use the 220V alternating current to charge.Sometimes people's field work, travelling or on the vehicle of long-distance running run into the situation that mobile phone does not have electricity, and these places often do not have AC power, and the awkward circumstances of this kind are headache very.Application number is to disclose a kind of dry battery type charger for mobile phone in 200410027048.8 the Chinese invention patent ublic specification of application, comprise: one is used for the cavity of built-in dry cell as power supply, be used to connect the electrode of battery output, protrude from the utensil outside and be used to connect the plug of mobile phone charging interface, connect the circuit of described electrode and described plug; It is characterized in that: described circuit comprises a booster circuit, its input connects described electrode, its output connects described plug, owing to used booster circuit, the dry battery type charger for mobile phone can use the dry battery power of low voltage, thereby can reduce the usage quantity of dry cell, this just reduces the volume of utensil, use more convenient, the battery number reduces also can improve the energy product ratio, thereby prolong the battery altering cycle, thereby the problem that has solved the conventional charger heaviness and must charge under the condition of alternating current has certain superiority.In the technical scheme of this invention, booster circuit can adopt discrete component to constitute, and also can adopt the special-purpose integrated circuit that boosts.But most at present chargers also exists the bigger defective of static electric energy loss when not working, and this has caused the useful life of battery shorter, needs often to change battery and guarantees the interim emergent charging that takes place.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of battery long service life, easy to carry and portable charger for handset with zero static working current.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of portable charger for handset, comprise the dry cell that is used to provide charging current, the charging main circuit, connector assembly and conversion connector, one end of described conversion connector is provided with the cell-phone charging plug, the other end of described conversion connector is provided with changeover plug, described dry cell is anodal to be connected with the input of described charging main circuit, described connector assembly is provided with the first output contact of not conducting mutually, the second output contact and first electric conductor, the output of described charging main circuit is connected with described first electric conductor, the earth terminal of described charging main circuit is connected with described first exit point, the negative pole of described dry cell is connected with the described second output contact, described changeover plug is provided with the input contact and second electric conductor of not conducting mutually, described input contact is connected with the positive input terminal of described cell-phone charging plug, described second electric conductor is connected with the negative input end of described cell-phone charging plug, the described first output contact and the second output contact and described second electric conductor cooperatively interact, and described first electric conductor and described input contact cooperatively interact.
Described first electric conductor is bar-shaped, and described second electric conductor is a tubular.
Described charging main circuit is provided with charging indication.
Compared with prior art, advantage of the present utility model is that connector assembly is provided with the first output contact of not conducting mutually, the second output contact and first electric conductor, the earth terminal of charging main circuit is connected with the first output contact, the negative pole of dry cell is connected with the second output contact, first electric conductor is connected with the output of charging main circuit, have only like this when changeover plug is inserted into connector assembly, the first output contact contacts with second electric conductor with the second output contact simultaneously, the negative pole ability of dry cell and the earth terminal conducting of charging main circuit, entire circuit is in charged state, and after changeover plug is extracted, the negative pole of dry cell and the earth terminal not conducting mutually of main circuit of charging, so do not produce any static working current.
When changeover plug is inserted into connector assembly, the first bar-shaped electric conductor inserts second electric conductor of tubular, and first electric conductor and second electric conductor do not come in contact, and first electric conductor contacts conducting with the input contact, the earth terminal conducting of the negative pole of dry cell and charging main circuit is in charged state.
The function of charging indication is that indication is provided when charger is started working.
Description of drawings
Fig. 1 is the utility model electrical block diagram;
Fig. 2 is the vertical view of changeover plug of the present utility model;
Fig. 3 is the utility model is given cell-phone charging by conversion connector a schematic diagram;
Fig. 4 is a circuit diagram of the present utility model.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
A kind of portable charger for handset, comprise the dry cell 1 that is used to provide charging current, charging main circuit 2, connector assembly 3 and conversion connector 4, one end of conversion connector 4 is provided with cell-phone charging plug 11, the other end of conversion connector 4 is provided with changeover plug 5, dry cell 1 anodal input with charging main circuit 2 is connected, connector assembly 3 is provided with the first output contact 6 of not conducting mutually, the second output contact 7 and first electric conductor 8, the output of charging main circuit 2 is connected with first electric conductor 8, the earth terminal of charging main circuit 2 is connected with the first output contact 6, the negative pole of dry cell 1 is connected with the second output contact 7, changeover plug 5 is provided with the input contact 9 and second electric conductor 10 of not conducting mutually, input contact 9 is connected with the positive input terminal of cell-phone charging plug, second electric conductor 10 is connected with the negative input end of cell-phone charging plug 11, the first output contact 6 and the second output contact 7 and second electric conductor 10 cooperatively interact, and first electric conductor 8 cooperatively interacts with input contact 9.
First electric conductor 8 is bar-shaped, and second electric conductor 10 is a tubular.
Charging main circuit 2 is provided with charging indication.
Shown in the accompanying drawing 3, portable charger 12 of the present invention is given the schematic diagram of mobile phone 13 chargings by conversion connector 4
The charging main circuit comprises that model is the integrated chip IC1 of CE908B, energy storage inductor L, field effect transistor Q1, the first diode D1 and second capacitor C 2 that is used for filtering that are used for rectification, the end of energy storage inductor L is connected with the positive pole of dry cell 1, the other end of energy storage inductor L is connected with the drain electrode of field effect transistor Q1 and the 2nd pin by being connected in series the first diode D1 and integrated chip IC1 and the 3rd pin and the end that is used for the 3rd resistance R 3 of current limliting are connected, the other end of the 3rd resistance R 3 is connected with the first output contact 6, the grid of field effect transistor Q1 is connected with the 5th pin of integrated chip IC1, the source electrode of field effect transistor Q1 is connected with the 4th pin of integrated chip IC1 and is connected with first electric conductor 8, second capacitor C 2 is connected between the 2nd pin and the 4th pin of integrated chip IC1, also be provided with first resistance R 1 and second resistance R 2 that are used for dividing potential drop between the 2nd pin of integrated chip IC1 and the 4th pin, the 1st pin of integrated chip IC1 is connected between first resistance R 1 and second resistance R 2, be arranged in parallel first capacitor C 1 on first resistance R 1, the negative pole of dry cell 1 is connected with the second output contact 7, charging indication comprises LED, the 3rd capacitor C 3, the 4th resistance R 4 and the second diode D2, the negative terminal of LED is connected with the positive pole of dry cell 1, the anode of the second diode D2 is connected with the drain electrode of field effect transistor Q1, the anode of LED is connected with the negative terminal of the second diode D2 by the 4th resistance R 4, and the 3rd capacitor C 3 is connected in parallel on the LED.
It is the integrated chip IC1 of CE908B that the utility model has adopted model.Its 1st pin is that output voltage is provided with end, is used to adjust the ratio of first resistance R 1 and second resistance R 2, and required output voltage is set; Its 2nd pin is a power positive end; Its 3rd pin is an output control terminal; Its 4th pin is an earth terminal; Its 5th pin is external power tube drive output.
Claims (3)
1. portable charger for handset, comprise the dry cell that is used to provide charging current, the charging main circuit, connector assembly and conversion connector, one end of described conversion connector is provided with the cell-phone charging plug, the other end of described conversion connector is provided with changeover plug, described dry cell is anodal to be connected with the input of described charging main circuit, it is characterized in that described connector assembly is provided with the first output contact of not conducting mutually, the second output contact and first electric conductor, the output of described charging main circuit is connected with described first electric conductor, the earth terminal of described charging main circuit is connected with described first exit point, the negative pole of described dry cell is connected with the described second output contact, described changeover plug is provided with the input contact and second electric conductor of not conducting mutually, described input contact is connected with the positive input terminal of described cell-phone charging plug, described second electric conductor is connected with the negative input end of described cell-phone charging plug, the described first output contact and the second output contact and described second electric conductor cooperatively interact, and described first electric conductor and described input contact cooperatively interact.
2. a kind of portable charger for handset according to claim 1 is characterized in that described first electric conductor is bar-shaped, and described second electric conductor is a tubular.
3. a kind of portable charger for handset according to claim 1 is characterized in that described charging main circuit is provided with charging indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201914301U CN201117760Y (en) | 2007-11-27 | 2007-11-27 | Portable mobile phone charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201914301U CN201117760Y (en) | 2007-11-27 | 2007-11-27 | Portable mobile phone charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117760Y true CN201117760Y (en) | 2008-09-17 |
Family
ID=39992344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201914301U Expired - Lifetime CN201117760Y (en) | 2007-11-27 | 2007-11-27 | Portable mobile phone charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117760Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436782B (en) * | 2008-12-26 | 2010-12-22 | 宁波双鹿电气有限公司 | Mobile phone charger employing dry battery |
-
2007
- 2007-11-27 CN CNU2007201914301U patent/CN201117760Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436782B (en) * | 2008-12-26 | 2010-12-22 | 宁波双鹿电气有限公司 | Mobile phone charger employing dry battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |