CN2657083Y - External battery for notebook computer - Google Patents

External battery for notebook computer

Info

Publication number
CN2657083Y
CN2657083Y CN 03250184 CN03250184U CN2657083Y CN 2657083 Y CN2657083 Y CN 2657083Y CN 03250184 CN03250184 CN 03250184 CN 03250184 U CN03250184 U CN 03250184U CN 2657083 Y CN2657083 Y CN 2657083Y
Authority
CN
China
Prior art keywords
circuit
notebook computer
power supply
output interface
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 - Lifetime
Application number
CN 03250184
Other languages
Chinese (zh)
Inventor
赵武
严勇
吴虓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG PISEN ELECTRONICS CO., LTD.
Original Assignee
Chengdu Dexian Comm Dev Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Dexian Comm Dev Co ltd filed Critical Chengdu Dexian Comm Dev Co ltd
Priority to CN 03250184 priority Critical patent/CN2657083Y/en
Application granted granted Critical
Publication of CN2657083Y publication Critical patent/CN2657083Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

An externally positioned battery of a portable computer which relates to computer used power supply consists of shell body with a connection socket of a changeable ac power supply adapter and a power supply output interface, a battery group in the shell, a steady voltage circuit that is connected between the battery group and the power supply output interface, a charging circuit that is connected between the connection socket of the ac power supply adapter and the battery group, a detection circuit of working current of the portable computer that is connected with the power supply output interface, a controlling circuit that is separately connected with the connection socket of the ac power supply adapter, the charging circuit, the steady voltage circuit and the detection circuit of working current of the portable computer, and an unidirectional guiding circuit which is connected between the connection socket of the ac power supply adapter and the power supply output interface. The utility model which has a large capacity and long supporting time can be used in potable computers with all kinds of brands and types.

Description

The external battery that a kind of notebook computer is used
Technical field
The utility model relates to a kind of computer power-supply device.What be particularly related to is the external battery that a kind of notebook computer is used.
Background technology
Notebook computer as the daily use of operating platforms such as a kind of mobile office, home entertaining, network communication more and more widely.The maximum characteristic of notebook computer is exactly its movability.And support that the key of the power resources that this mobility is realized is exactly the battery of notebook computer.
At present, cells in notebook computer is built-in battery, and mainly is that each producer is configured separately for each model notebook computer of being produced separately, can not be general less than seeking unity of standard between each model.The life-span of battery also has only the time approximately more than a year.Because it is very fast that IT product updates, can make some products after using more than 1 year, may there be the difficulty of the source of goods when on battery package is upgraded, facing second purchase, this is all unusual problems of headache of most consumer.And one of key reason is the present technology that adopts of cells in notebook computer, depends merely on a powered battery, and continuous working period on average has only 2~4 hours, can't satisfy consumer's growing, strong " moving " demand.If join a reserve battery in addition, because its price is generally higher with respect to other computer fittings, the expectation value of application but can't satisfy consumer's expectation, makes that the capacity of rational consumer's secondary consumption is limited.This also is the key factor that hinders battery consumption.Although each notebook computer all is equipped with external power adapter, civil power is converted to direct current uses for notebook computer, in the environment that does not have the external power source support, to work and amusement, the external power adapter of notebook computer is with utterly useless; And you will find that the modern work and the rhythm of life will allow you be in constantly among this environment.Therefore, press on the market a kind of not only economical, but also can conveniently be applicable to the battery of all notebook computers.
The utility model content
The purpose of this utility model is intended to solve this problem of limited power of notebook computer, and the external battery that a kind of capacity is big, the life-span long, widely applicable notebook computer is used is provided.
The external battery of realizing the utility model purpose is by the housing that has removable AC power source adapter gang socket and power output interface, be arranged on the battery pack in the housing, be connected in the mu balanced circuit between battery pack and the power output interface, be connected in the charging circuit between AC power source adapter gang socket and the battery pack, be connected to the working with notebook computer current detection circuit of power output interface, be connected in AC power source adapter gang socket respectively, charging circuit, the control circuit of mu balanced circuit and notebook working current testing circuit and the unidirectional turning circuit that is connected between AC power source adapter gang socket and the power output interface constitute.
The principle of work of the external battery that this notebook computer is used is as follows:
The stube cable that apolegamy is complementary with the direct current input interface of notebook computer during use is connected the power output interface of this battery with notebook computer, having under the situation of civil power, can utilize AC power source adapter to be connected in the AC power source adapter access port of civil power and this external battery, civil power converts to through AC power source adapter and is divided into three the tunnel after direct current is linked into AC power source adapter gang socket, one the tunnel is transferred to power output interface through unidirectional turning circuit, offers notebook computer through stube cable and uses.Promptly identical with the existing adapters power supply.Control circuit is then delivered on another road, and control circuit control mu balanced circuit makes it to be in off position, makes battery pack not have electric energy output; Third Road enters charging circuit, and this charging circuit is controlled by control circuit, and control circuit is according to whether controlling charging circuit to batteries charging from the electric signal of notebook working current testing circuit.When not having civil power, control circuit then starts mu balanced circuit work, is stabilized in the electric energy of battery pack in the required voltage range of working with notebook computer and is transferred to power output interface, offers notebook computer through stube cable and uses.Unidirectional turning circuit plays anti-reverse charging effect at this moment, and the electric current that prevents mu balanced circuit output is to battery charging.
The utility model advantage compared with prior art is that the capacity of electricity is big, and the support time is long, and removable AC power source adapter gang socket makes this external battery can be applicable to the AC adapter of various models easily; Can be used for the notebook computer of various different models and do not need notebook computer is done any change by the apolegamy stube cable; Having under the situation of civil power, can utilize AC power source adapter equally, also can utilize AC power source adapter to carry out intelligent charge during without computer for battery pack directly for the notebook computer power supply.Can be used in the notebook computer of each model of various brands.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Description of drawings
Fig. 1 is a theory diagram of the present utility model
Fig. 2 is the electrical block diagram of present embodiment
Fig. 3 is a user mode synoptic diagram of the present utility model
Embodiment
Shown in Fig. 1~3, the external battery that this notebook computer is used is by the housing 3 that has removable AC power source adapter gang socket 1 and power output interface 2, be arranged on the battery pack E in the housing 3, be connected in the mu balanced circuit between battery pack and the power output interface, be connected in the charging circuit between AC power source adapter gang socket and the battery pack, be connected to the notebook working current testing circuit of power output interface, be connected in AC power source adapter gang socket respectively, charging circuit, the control circuit of mu balanced circuit and notebook working current testing circuit and the unidirectional turning circuit that is connected between AC power source adapter gang socket and the power output interface constitute.Removable AC power source adapter gang socket 1 can be used slot contact structure and is inserted on the housing 3, when being used for different AC power source adapter, then the gang socket that before is not complementary can be extracted from housing, insert a gang socket that is complementary with it in addition, after insertion puts in place, the electrical connection contact of gang socket then with shell in the electrical connection contact touch and finish electrical connection.Among Fig. 34 is AC power source adapter, and 5 is stube cable, and 6 is notebook computer.
Referring to Fig. 2, described control circuit is in the present embodiment by three voltage comparator ics 1, IC 2, IC 3With and peripheral cell diode D 2, D 3, D 4, resistance R 2, R 3, R 4, R 5, R 6, R 7, R 8, R 9, R 10, R 11, R 12, capacitor C 1, C 2Constitute, can certainly constitute with the general four comparer integrated circuit of the LM393 with similar functions structure.The working with notebook computer current detection circuit is with a high-power resistance R 1Serve as mu balanced circuit IC 4Served as by a general DC-DC converter of 16~21V/4A (2), unidirectional turning circuit is used a big electric current low forward voltage drop Schottky diode D in the present embodiment simply 1Serve as, battery pack is selected the bigger lithium battery group of capacity, charging circuit IC for use 5Select for use general DC-DC converter (1) to serve as.Fig. 2 has provided above-mentioned each parts connecting circuit figure partly.When powering by external power adapter, D 2, R 5Give comparer IC 2Positive input provide one near V CcVoltage, make comparer export a high level, turn-off DC-DC converter (2) by force, the output of blocking-up electric battery electric energy.R 1Convert the working current of notebook computer to voltage signal, and deliver to comparer IC 1With setting value relatively, when working with notebook computer, its working current is greater than a setting value, comparer IC 1Turn-off DC-DC converter (1) according to this signal, stop electric energy from adapter to batteries charging.When not connecting notebook computer or notebook computer and do not work, its working current is less than a setting value, comparer IC 1According to this signal enabling charging circuit, from the electric energy of adapter through DC-DC converter (1) to batteries charging.When external power adapter does not have power supply, comparer IC 3Export an electric signal, start DC-DC converter (2), the electric energy of electric battery is boosted to the required 16~19V stable DC of working with notebook computer; Also can be designed to start button K by one 1Come to comparer IC 3An electric signal starts DC-DC converter (2), and the benefit of doing like this is the loss of battery pack power in the time of can avoiding no-output.
Still can connect a condition indication circuit in that described battery pack is other,, remind user's timely storage data etc. before electric energy consumption is intact so that the duty of this external battery and dump energy what indicate at any time.This condition indication circuit can be used existing light emitting diode display circuit fully, 7 among Fig. 3,8,9 be respectively show battery-powered, electric weight is sufficient and the green of the not enough warning of electric weight, red light emitting diodes.Also can use the single-frame electric weight display circuit that uses on the mobile phone, all belong to known technology, not shown on the figure.

Claims (6)

1, the external battery that a kind of notebook computer is used is characterized in that described external battery is by the housing that has removable AC power source adapter gang socket and power output interface, be arranged on the battery pack in the housing, be connected in the mu balanced circuit between battery pack and the power output interface, be connected in the charging circuit between AC power source adapter gang socket and the battery pack, be connected to the working with notebook computer current detection circuit of power output interface, be connected in AC power source adapter gang socket respectively, charging circuit, the control circuit of mu balanced circuit and notebook working current testing circuit and the unidirectional turning circuit that is connected between AC power source adapter gang socket and the power output interface constitute.
2, the external battery used of notebook computer as claimed in claim 1 is characterized in that described control circuit is made of three voltage comparators.
3, the external battery used of notebook computer as claimed in claim 1 is characterized in that described notebook working current testing circuit served as by a high-power resistance.
4, the external battery used of notebook computer as claimed in claim 1 is characterized in that described unidirectional turning circuit served as by a diode.
5, the external battery used of notebook computer as claimed in claim 1 is characterized in that described battery pack is the lithium battery group.
6, the external battery used of notebook computer as claimed in claim 1 is characterized in that described battery pack is connected to a condition indication circuit.
CN 03250184 2003-09-03 2003-09-03 External battery for notebook computer Expired - Lifetime CN2657083Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03250184 CN2657083Y (en) 2003-09-03 2003-09-03 External battery for notebook computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03250184 CN2657083Y (en) 2003-09-03 2003-09-03 External battery for notebook computer

Publications (1)

Publication Number Publication Date
CN2657083Y true CN2657083Y (en) 2004-11-17

Family

ID=34327719

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03250184 Expired - Lifetime CN2657083Y (en) 2003-09-03 2003-09-03 External battery for notebook computer

Country Status (1)

Country Link
CN (1) CN2657083Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101211211B (en) * 2007-12-21 2010-09-15 欣旺达电子股份有限公司 Notebook-type computer power supply method and power supply apparatus implementing the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101211211B (en) * 2007-12-21 2010-09-15 欣旺达电子股份有限公司 Notebook-type computer power supply method and power supply apparatus implementing the method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SICHUAN DEXIAN TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: CHENGDU DEXIAN COMMUNICATION DEVELOPMENT CO., LTD.

Effective date: 20060714

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20060714

Address after: 26 building A, block 1, times digital building, No. four, Renmin South Road, 610011, Sichuan, Chengdu

Patentee after: Dexian Science and Technology Co., Ltd., Sichuan

Address before: 610016, Sichuan, Chengdu Province, 184 South Road, Tai Sheng telecommunications City, 17 floor

Patentee before: Chengdu Dexian Communication Development Co., Ltd.

ASS Succession or assignment of patent right

Owner name: PISEN ELECTRONICS CO., LTD.

Free format text: FORMER OWNER: DEXIAN SCIENCE AND TECHNOLOGY CO., LTD., SICHUAN

Effective date: 20110506

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 610011 26/F, TOWER A, SHIDAI DIGITAL BUILDING, NO. 1, 4TH SECTION OF RENMINSOUTH ROAD, CHENGDU CITY, SICHUAN PROVINCE TO: 518173 NO. 9, QINFU 1ST STREET, JINTANG INDUSTRIAL ZONE, NIUSHIPU VILLAGE, LIUYUE, HENGGANG TOWN, LONGGANG DISTRICT, SHENZHEN CITY

TR01 Transfer of patent right

Effective date of registration: 20110506

Address after: 518173 Shenzhen city Longgang District Henggang town about six cattle Village Shipu Jintang Industrial Zone No. 9 Qin Fu Street

Patentee after: GUANGDONG PISEN ELECTRONICS CO., LTD.

Address before: 26 building A, block 1, times digital building, No. four, Renmin South Road, 610011, Sichuan, Chengdu

Patentee before: Dexian Science and Technology Co., Ltd., Sichuan

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20130903

Granted publication date: 20041117