CN200947197Y - External battery for notebook computer - Google Patents
External battery for notebook computer Download PDFInfo
- Publication number
- CN200947197Y CN200947197Y CNU2006200146714U CN200620014671U CN200947197Y CN 200947197 Y CN200947197 Y CN 200947197Y CN U2006200146714 U CNU2006200146714 U CN U2006200146714U CN 200620014671 U CN200620014671 U CN 200620014671U CN 200947197 Y CN200947197 Y CN 200947197Y
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- battery
- notebook computer
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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 outlay laptop PC battery, comprising a crust, a storage battery, a charger and a discharger, a power supply fan out. Wherein, the storage battery and the charger and the discharger are arranged in the crust, and the output port is arranged on the main panel of the crust, and the laptop PC outlay battery is provided with a battery fender which is arranged in the crust, and connects with the storage battery and the charger and the discharger. The utility model makes use of the lithium battery pile as the storage battery, and has the advantages of the strong capacity, light weight, compactness, and portability. The battery fender arranged in the crust plays the role of protecting the lithium battery in charging and discharging, and prolongs the life span of the lithium battery.
Description
Technical field
The utility model relates to a kind of cell apparatus, particularly a kind of notebook computer external battery.
Background technology
Lithium battery has the advantages that capacity height, volume are little, easy to carry, stand-by time is long, can mate different output splicing ears, and be widely used, and also is suitable as the internal battery of nearly all notebook computer on the market.
Present notebook computer is popularized gradually, its frequency in outdoor application increases gradually, and also increase gradually service time, but because the internal battery capacity of notebook computer is on the low side, short in the time of outdoor application at every turn, make the battery charge frequency of notebook computer increase, the life-span of battery shortens, and also has, connect inconvenient place at some power supplys, cause a few thing to finish smoothly, make troubles, thereby limited frequency and the time of user at the outdoor application notebook computer to the user.Along with the quickening of present information interchange, this inconvenience will limit the development of notebook computer.Therefore, prolong notebook computer, increase the serviceable life of battery, become the essential technical matters that solves of notebook computer in outdoor service time.
The utility model content
The technical problems to be solved in the utility model is: prolong notebook computer in outdoor service time, increase the serviceable life of battery, and a kind of external battery that is applicable to notebook computer is provided.
In order to solve this technical matters, the utility model is taked following scheme:
A kind of notebook computer external battery; comprise housing, accumulator, charging and discharging module and power output interface; wherein accumulator and charging and discharging module are placed in the housing; output interface is installed on the main panel of housing; the notebook computer external battery also includes a battery protecting plate; battery protecting plate is placed in the housing, is electrically connected with accumulator, charging and discharging module.
Wherein, battery protecting plate can play the effect of protection accumulator in charge in batteries or discharge process; and be integrated with holding circuit at battery protecting plate, wherein holding circuit includes the electric capacity that strobes between a chip IC, accumulator, connection and chip IC and the accumulator, is connected the resistance that plays overcurrent protection between output negative pole P-and the accumulator.
Be integrated with chip IC and charging circuit and discharge circuit in the charging and discharging module.
The notebook computer external battery also comprises supply voltage selector switch and supply voltage selection module, the supply voltage selector switch is installed on the main panel of housing and with supply voltage selects module to be electrically connected, and supply voltage is selected module to be integrated with voltage to select and the capacity display circuit.
Wherein voltage is selected and the capacity display circuit, the voltage indication LED of include chip IC 1, connecting with chip IC 1, the electric weight indication LED of connecting with chip IC 1, the charging indication LED of connecting with chip IC 1, the supply voltage output switch that is connected with chip IC 1 is connected electric weight display control switch KEY1 with chip IC 1.
The notebook computer external battery also comprises power input interface, and power input interface is installed on the main panel of housing.
A power light, a charging indicator light, two voltage indicator lamps, four electric weight demonstration pilot lamp are installed on the main panel of housing.
Wherein, two voltage indicator lamps are respectively 16V voltage indicator lamp and 19V voltage indicator lamp; Four electric weight show that pilot lamp is respectively that 25% electric weight shows that pilot lamp, 50% electric weight show that pilot lamp, 75% electric weight show that pilot lamp and 100% electric weight show pilot lamp.
Wherein, the supply voltage selector switch has three kinds of selections of supply voltage of supply voltage and the 19V of ON/OFF power supply, 16V.When selecting the supply voltage of 16V, the 16V voltage indicator lamp is bright, and the output supply voltage of expression battery is 16V; When selecting the supply voltage of 19V, the 19V voltage indicator lamp is bright, and the output supply voltage of expression battery is 19V.
Wherein, accumulator is the battery pack of being made up of a plurality of lithium batteries, and preferred four lithium batteries are formed battery pack.
The utility model adopts the lithium battery group as accumulator; have that capacity is big, in light weight, volume is little and convenient carrying; also be mounted with a battery protecting plate in the housing, charge and the discharge operation process in can play the effect of protection lithium battery group, prolong the serviceable life of lithium battery.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Fig. 1 is a johning knot composition of the present utility model.
Fig. 2 is a principle of work block diagram of the present utility model.
Fig. 3 is battery protecting plate holding circuit figure.
Fig. 4 selects and capacity display circuit figure for voltage.
Fig. 5 is transforming circuit figure.
Fig. 6 is booster circuit figure.
Embodiment
See also Fig. 1, Fig. 1 is a johning knot composition of the present utility model.The main panel 30 of external battery 3 is equipped with two interfaces, be respectively power input interface 33 and power output interface 32, wherein, power input interface 33 connects charger 1 by output line 4, charger 1 connects multiple power source by ac power cable 2 again, by being connected of charger 1 and external battery 3, can give external battery 3 chargings; Power output interface 32 connects notebook computers 6 by output line 4, provides notebook computer 6 required power supply.In addition, also have eight covers 5 of a DC, provide the DC interface of eight distinct interface sizes, to be fit to have the notebook computer 6 of distinct interface.Also have a supply voltage selector switch 31 and several pilot lamp on the main panel 30 of external battery 3, wherein pilot lamp comprises that power light 34,16V voltage indicator lamp 36,19V voltage indicator lamp 35,25% electric weight show that pilot lamp 384,50% electric weight show that pilot lamp 383,75% electric weight show that pilot lamp 382,100% electric weight show pilot lamp 381 and charging indicator light 37.Supply voltage selector switch 31 can be selected the supply voltage of 16V or 19V, and when selecting the supply voltage of 16V, 16V voltage indicator lamp 36 is bright, and the output supply voltage of expression battery is 16V; When selecting the supply voltage of 19V, 19V voltage indicator lamp 35 is bright, and the output supply voltage of expression battery is 19V.
See also Fig. 2, Fig. 2 is a principle of work block diagram of the present utility model.The utility model has charge circuit and two kinds of work of discharge loop loop.Accumulator generally is made up of the lithium battery 2 and 4 strings of 8 high power capacity, and voltage can reach 14.8V, and power can reach 60W.H.In charge circuit, charger charges a battery in the process, through battery protecting plate, charges a battery earlier again, and charger can decide electric current, decide voltage exports, and it is full to guarantee that battery 100% fills; Battery protecting plate is when the charging of accumulator, and accumulators provides overcurrent, overcharges, short-circuit protection, guarantees that simultaneously every batteries reaches charge balancing.In discharge loop, accumulator discharges, earlier through battery protecting plate; again to electric weight show/low electric alarm/boost/voltage option board discharges; battery protecting plate when battery discharging, to battery overcurrent be provided, overcharge, short-circuit protection, guarantee that simultaneously every batteries reaches charge balancing.Electric weight shows/electric weight of low electric alarm/boost/voltage option board shows to have the electric weight that 25%, 50%, 75%, 100% range shows battery, allows you know the battery number percent that battery has exactly; Low electric alarm can be worked as battery electric quantity when being lower than 25%, and 25% electric weight shows the pilot lamp flicker, sends prompting, and the indicating battery electric weight is low; The booster circuit that boost, the voltage option board can be provided with chip controls, the voltage of notebook computer that can boost, and be provided with second gear voltage selection function.
Concrete principle of work is as follows:
During charging, external charger charges a battery by monolithic processor controlled live part and battery protecting plate for deciding voltage, deciding electric current output.When battery tension was lower than 4.2V, charger will adopt to be decided electric current and charges a battery; When battery tension is charged to 4.2V, charger will adopt the mode of deciding voltage to charge the battery; Charging current reduces gradually, and when charging current drops to the 1/10C of battery capacity, charger will cut off output automatically.Battery protecting plate provides overcurrent in whole charging process, overcharge and short-circuit protection, can protect battery effectively.
During discharge, accumulator can provide power supply for the plate that boosts by battery protecting plate.At this moment, only need press the supply voltage selector switch, selected required output voltage.Simultaneously, corresponding voltage indicator lamp is lighted, and shows selected output voltage.The whole process of boosting ensures the degree of stability of output voltage by chip controls, and battery protecting plate provides overcurrent, crosses and put and short-circuit protection in whole process.
Electric weight shows partly, and (chip: Samsung S9454) show the capacity of accumulator exactly, its range is 25%, 50%, 75%, 100% to single-chip microcomputer.No matter in charging process still at discharge process, only need press the electric weight display switch, just know the electric weight of battery.As: 4 electric weight show that pilot lamp is bright, and the expression battery electric quantity is 100%; Show that as 3 electric weight pilot lamp is bright, represent that then battery electric quantity is 75%; 2 electric weight show that pilot lamp is bright, represent that then battery electric quantity is 50%, show that as 1 electric weight pilot lamp is bright, represent that then battery electric quantity is 25%.The low pressure alarming function is provided simultaneously, and when cell voltage was lower than 12.0V, 25% electric weight showed the pilot lamp flicker, to remind you cell voltage is on the low side.
See also Fig. 3, Fig. 3 is battery protecting plate holding circuit figure.The protection circuit that it mainly is made of chip IC (Samsung S8254); IC inside is provided with accurate over-charge protective voltage 4.350V ± 0.025V; over-charge protective release voltage 4.150 ± 0.050V; cross and put protection voltage 2.40 ± 0.08V; cross and put protection release voltage 3.00 ± 0.100V, overcurrent detecting voltage 0.15 ± 0.025V.The COP pin is the charging output pin; The VMP pin is battery output and battery protecting plate output voltage detecting pin; The DOP pin is the discharge output pin; The VINI pin is an overcurrent protection detecting pin; The CDT pin be put, overcurrent, short-circuit protection delay adjustments pin; The CCT pin is an over-charge protective delay adjustments pin; The VSS pin is the battery negative terminal pin; The SEL pin is that 3 batteries series connection connect with 4 batteries to protect and selected pin; The STL pin is the charge and discharge control pin; The VC4 pin connects the positive pole of battery BAT4 and the negative pole of battery BAT3; The VC3 pin connects the positive pole of battery BAT3 and the negative pole of battery BAT2; The VC2 pin connects the positive pole of battery BAT2 and the negative pole of battery BAT1; The VC1 pin connects the positive pole of battery BAT1; The VDD pin is the power supply pin.In the drawings, Q1 and Q2 are formed in parallel by two triodes respectively, and output cathode P+ is by by the positive pole that is connected serially to battery BAT1 behind Q1 and the Q2 diode in parallel respectively again, output negative pole P-by parallel resistance R1A, R1B be connected to battery BAT4 negative pole; Capacitor C 1 is anode and battery protecting plate output cathode differential pressure security delay capacitor; Capacitor C 2 be put, overcurrent, short-circuit protection delay capacitor; Capacitor C 3 is the over-charge protective delay capacitor; Capacitor C 4, C5, C6, C7 are connected in parallel on respectively on battery BAT1, BAT2, BAT3, the BAT4, strobe; C8, R2 are the overcurrent protection screen pack; R1A, R1B are overcurrent protection resistance: during charging, if when the voltage of single battery is higher than 4.350V ± 0.025V, and COP pin output high level, the blocking-up external voltage flows into battery again, plays the over-charge protective purpose.During discharge, if the voltage of single battery is lower than 2.40 ± 0.08V, DOP pin output high level, the blocking-up battery is outwards power supply again, rises and has been the purpose of putting protection.When the voltage difference of R1A, R1B reaches 0.15 ± 0.025V, COP pin output high level during charging, the blocking-up battery is outwards power supply again; During discharge, COP pin output high level prevents that foreign current from flowing into battery again, plays the purpose of protection battery.
See also Fig. 4, Fig. 5 and Fig. 6.As shown, chip IC 2 has VI pin, VO pin and three pins of GND, wherein, chip IC 2 is undertaken external power supply (being generally 12-16.8V) after the transformation outputing to the VCC end by the power supply (generally being 5V) of VO pin after transformation by the VI pin again, provide chip IC 1 required power supply, capacitor C 10, C11 can play filter action.Chip IC 1 (Samsung S9454) has several pins: VSS2 pin ground connection; The VDD2 pin is a supply pin; The P10 pin is that 25% electric weight shows output pin; The P11 pin is that 50% electric weight shows output pin; The P20 pin shows pin for the output of 16V voltage; The P21 pin shows pin for the output of 19V voltage; The P25 pin is output ON/OFF output pin; The P26 pin is charging indication output pin; The P07 pin is that 100% electric weight shows output pin; The P06 pin is that 75% electric weight shows output pin; The P05 pin is 19V voltage output control pin; The P04 pin is 16V voltage output control pin; The P03 pin is a charging current input pin; The P02 pin is the battery voltage detection pin; The P01 pin is that pin is selected in supply voltage output; The P00 pin is that electric weight shows control pin.The VDD2 pin connects the VCC power end, and capacitor C 9 plays the effect of protective current; The P10 pin is connected with electric weight indication LED 2 and resistance R 6 back ground connection; The P11 pin is connected with electric weight indication LED 3 and resistance R 7 back ground connection; The P20 pin is connected with voltage indication LED 6 and resistance R 8 back ground connection; The P21 pin is connected with voltage indication LED 7 and resistance R 9 back ground connection; The P26 pin is connected with charging indication LED 1 and resistance R 5 back ground connection; The P07 pin is connected with electric weight indication LED 5 and resistance R 4 back ground connection; The P06 pin is connected with electric weight indication LED 4 and resistance R 3 back ground connection; The supply voltage output K switch EY2 that the P01 pin connects can select the supply voltage output of 16V and 19V; The P00 pin connects electric weight display control switch KEY1; P02 connects voltage output end VOLTAGE; P03 connects current output terminal CURRENT; P04 connects voltage output end REF1, is the 16V voltage output end; P05 connects voltage output end REF2, is the 19V voltage output end; P10 connects power output end.
When charging, R10 is that charging current detects resistance, the P26 pin output high level of chip IC 1, and rechargeable LED 1 is bright; After battery fills and satisfies, P26 pin output low level, rechargeable LED 1 goes out.R11, R12 are the cell voltage divider resistance: when P02 pin voltage is 4.2V, press electric weight display control switch KEY1,4 electric weight indication LED 2, LED3, LED4, LED5 are bright, and the expression battery electric quantity is full; When P02 pin voltage is lower than 4.2V, press electric weight display control switch KEY1,3 electric weight indication LED 2, LED3, LED4 are bright, and the expression battery electric quantity is higher than 75% and be lower than 100%; When P02 pin voltage is lower than 3.9V and is higher than 3.6V, press electric weight display control switch KEY1,2 electric weight indication LED 2, LED3 are bright, and the expression battery electric quantity is higher than 50% and be lower than 75%; When P02 pin voltage is lower than 3.6V and is higher than 3.3V, press electric weight display control switch KEY1,1 electric weight shows that LED2 is bright, the expression battery electric quantity is higher than 25% and be lower than 50%; When 17 pin voltages were lower than 3.3V, electric weight showed the LED2 flicker, and the expression battery electric quantity is low, reminds you to charge as early as possible.
Booster circuit mainly is made of inductance L 2, MOS transistor Q6 and diode D5, and chip IC 4 has pin A1-A8, and the switch of chip IC 4 control metal-oxide-semiconductor Q6 is to obtain stable precise output voltage.Reference voltage REF-VOL, power output end OUT, transistor Q8, Q7, Q5 are output ON/OFF triode, at the button of not determining to connect between P01 pin and the ground that touches, P25 pin output low level, the power supply of chip IC 4 is cut off, transistor Q7 turn-offs, output terminal no-output voltage; Trigger this button once more, P25 pin output high level, transistor Q7 conducting, chip IC 4 obtains power supply, the height of P20 pin output simultaneously is flat, transistor Q3 conducting, output voltage are 16V, trigger this button once more, P20 pin output low level, P21 pin output high level, transistor Q4 conducting, output voltage is 19V.As turn-offing output, only need trigger this button again and get final product.
Although the utility model has been done detailed explanation and has been quoted embodiment as proof; but for those of ordinary skill in the art; according to above-mentioned explanation, various replacement schemes, modification and the change that obviously can make all should be included within the protection domain of claim.
Claims (9)
1, a kind of notebook computer external battery; comprise housing, accumulator, charging and discharging module and power output interface; described accumulator and charging and discharging module are placed in the housing; output interface is installed on the main panel of housing; it is characterized in that: described notebook computer external battery also includes a battery protecting plate; described battery protecting plate is placed in the housing, is electrically connected with accumulator, charging and discharging module.
2, notebook computer external battery according to claim 1, it is characterized in that: described battery protecting plate is integrated with holding circuit.
3, notebook computer external battery according to claim 2 is characterized in that: described holding circuit includes the electric capacity that strobes between a chip IC, accumulator, connection and chip IC and the accumulator, is connected the resistance that plays overcurrent protection between output negative pole P-and the accumulator.
4, notebook computer external battery according to claim 1, it is characterized in that: described notebook computer external battery also comprises supply voltage selector switch and supply voltage selection module, described supply voltage selector switch is installed on the main panel of housing and with supply voltage selects module to be electrically connected, and described supply voltage is selected module to be integrated with voltage to select and the capacity display circuit.
5, notebook computer external battery according to claim 4, it is characterized in that: described voltage is selected and the capacity display circuit, the voltage indication LED of include chip IC 1, connecting with chip IC 1, the electric weight indication LED of connecting with chip IC 1, the charging indication LED of connecting with chip IC 1, the supply voltage output switch that is connected with chip IC 1 is connected electric weight display control switch KEY1 with chip IC 1.
6, notebook computer external battery according to claim 1 is characterized in that: a power light is installed on the main panel of housing.
7, notebook computer external battery according to claim 1 is characterized in that: a charging indicator light is installed on the main panel of housing.
8, notebook computer external battery according to claim 1 is characterized in that: two voltage indicator lamps are installed on the main panel of housing.
9, notebook computer external battery according to claim 1 is characterized in that: four electric weight are installed on the main panel of housing show pilot lamp.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2006200146714U CN200947197Y (en) | 2006-09-11 | 2006-09-11 | External battery for notebook computer |
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CNU2006200146714U CN200947197Y (en) | 2006-09-11 | 2006-09-11 | External battery for notebook computer |
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CN200947197Y true CN200947197Y (en) | 2007-09-12 |
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CNU2006200146714U Expired - Fee Related CN200947197Y (en) | 2006-09-11 | 2006-09-11 | External battery for notebook computer |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101916983A (en) * | 2010-08-25 | 2010-12-15 | 海洋王照明科技股份有限公司 | Battery protection circuit and portable light |
CN101938115A (en) * | 2010-08-23 | 2011-01-05 | 海洋王照明科技股份有限公司 | Battery protection circuit and portable light |
CN103033751A (en) * | 2011-09-29 | 2013-04-10 | 联想(北京)有限公司 | Battery detecting method, battery and electronic device |
CN104062592A (en) * | 2013-03-22 | 2014-09-24 | 海洋王(东莞)照明科技有限公司 | Power quantity detection circuit and lighting device |
-
2006
- 2006-09-11 CN CNU2006200146714U patent/CN200947197Y/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101938115A (en) * | 2010-08-23 | 2011-01-05 | 海洋王照明科技股份有限公司 | Battery protection circuit and portable light |
CN101916983A (en) * | 2010-08-25 | 2010-12-15 | 海洋王照明科技股份有限公司 | Battery protection circuit and portable light |
CN103033751A (en) * | 2011-09-29 | 2013-04-10 | 联想(北京)有限公司 | Battery detecting method, battery and electronic device |
CN103033751B (en) * | 2011-09-29 | 2015-06-24 | 联想(北京)有限公司 | Battery detecting method, battery and electronic device |
CN104062592A (en) * | 2013-03-22 | 2014-09-24 | 海洋王(东莞)照明科技有限公司 | Power quantity detection circuit and lighting device |
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Legal Events
Date | Code | Title | Description |
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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: 20070912 Termination date: 20100911 |