CN201262971Y - Lithium battery for providing DC double power supply - Google Patents
Lithium battery for providing DC double power supply Download PDFInfo
- Publication number
- CN201262971Y CN201262971Y CNU2008200939787U CN200820093978U CN201262971Y CN 201262971 Y CN201262971 Y CN 201262971Y CN U2008200939787 U CNU2008200939787 U CN U2008200939787U CN 200820093978 U CN200820093978 U CN 200820093978U CN 201262971 Y CN201262971 Y CN 201262971Y
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- Prior art keywords
- lithium battery
- power supply
- supply unit
- direct current
- lithium cell
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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 lithium cell which provides DC dual power. The lithium cell comprises two lithium cell modules which can independently provide DC singe power respectively and are connected in series, wherein the cathode of one lithium cell module is a positive power output end and the anode of the other lithium cell module is a negative power output end, while the common end of the two lithium cell modules is a zero voltage output end; wherein, every lithium cell module comprises a power supply unit which is made from polymer materials and can be charged, and an intelligent protection circuit connected between the cathode and the anode of the power supply unit. The lithium cell pertains to environmental protection battery, improves the application scope of the DC lithium cell and has wide application prospect.
Description
Technical field
The utility model relates to a kind of DC power supply, especially relate to a kind of provide electric pressure for 7.4V～8.4V or 11.1V～12.6V positive and negative direct current duplicate supply or electric pressure is provided is the lithium battery of the direct current monomer power supply of 14.8V～16.8V or 22.2V～25.2V.
Background technology
Along with the development of battery technology, traditional dry cell since exist useful life short, internal resistance is big, capacity is little, volume is big, can not recycle and defective such as pollution, and is progressively superseded in modern electronic technology is used; And advantage such as the appearance of lithium battery is little with its internal resistance, capacity is big, volume is little, can be recycled, environmental protection obtains using extremely widely at aspects such as hyundai electronics application and communications.
In recent years, along with the raising of environmental requirement and the requirement of safe handling, poly-lithium battery is compliance with environmental protection requirements more, and is overheated, overcharge and use for a long time and all can not explode, and guarantees user's personal safety.The single lithium battery electric pressure that is adopted in the market is 3.7V～4.2V, is applicable to that generally communication uses, and there is limitation in the application of other electronic products.
Therefore, be necessary to expand the usage space of lithium battery in electronic application field, that is exactly to improve the electric pressure of its application and form monomer DC power supply or positive and negative duplicate supply according to applicable cases, and it is being applied as direct current amplifirer, the electronic product of instrument and meter and other electronic products etc.
The utility model content
The purpose of this utility model is to propose a kind of lithium battery that is used to provide the direct current duplicate supply, needs the requirement of voltage levels and positive and negative dual power supply to satisfy some chips in the electronic product.
For solving technical problem of the present utility model, the utility model discloses a kind of lithium battery that the direct current duplicate supply is provided, comprise: two lithium battery modules that direct current monomer power supply can independently be provided respectively, and two lithium battery module serial connections, the just very positive supply output of one of them lithium battery module, the negative pole of another lithium battery module is the negative supply output, and the common port of two lithium battery modules is the no-voltage output; Wherein, each lithium battery module includes: polymeric material is made and chargeable power supply unit; Be connected the positive pole of power supply unit and the intelligent protection circuit between the negative pole.
More excellent, described intelligent protection circuit comprises: the intelligent management chip, and wherein two pins of this intelligent management chip are connected with negative pole with the positive pole of described power supply unit by resistance respectively; The electric capacity that is connected in parallel with described power supply unit; And the switch element between the negative pole of two wherein two pins that are connected to described intelligent management chip and described power supply unit.
More excellent, described switch element is a field effect transistor; The grid of two field effect transistor is connected with wherein two pins of described intelligent management chip respectively, the source electrode interconnection, and the drain electrode of one of them field effect transistor connects the negative pole of described power supply unit, and the drain electrode of another field effect transistor is the negative supply output of described lithium battery module.
More excellent, two groups of output voltages that described power supply unit provides for ± 7.4V～8.4V or ± 11.1V～12.6V; The capacity that described power supply unit provides is 800～1200mAH.
Compared with prior art, the utlity model has following beneficial effect:
The utility model makes the lithium battery of the single capacity of original low-voltage, pass through special facture, make the magnitude of voltage multiplication, improve power coefficient and result of use and enlarge range of application, but and lithium battery flexible Application of the present utility model, both can be used as the dual power battery group and used, and also can be used as single power supply and use.In addition, lithium battery of the present utility model especially adapts to products such as electronic product that amplidyne or similar electric pressure require, electronic toy, instrument and meter and uses, and is with a wide range of applications.
Description of drawings
Fig. 1 is an electrical block diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model proposes a kind of high-energy poly-lithium battery that the direct current duplicate supply is provided, comprise: two lithium battery modules 10 and 20 that direct current monomer power supply can independently be provided respectively, lithium battery module serial connection 10 and 20, its common port G is the no-voltage output; The anodal EB+ of lithium battery module 10 is the positive supply output, and the negative pole EB-of lithium battery module 20 is the negative supply output.
Wherein, power supply unit U1 and U2 can be the single lithium battery group of independent monomer lithium battery or lamination composition.
More excellent, described switch element is a field effect transistor; The grid of two field effect transistor FET1 and FET2 is connected with wherein two pins of described intelligent management chip IC 1 respectively, the source electrode interconnection, and the drain electrode of its field effect transistor FET1 connects the negative pole of described power supply unit U1, and the drain electrode of field effect transistor FET2 is the negative supply output of described lithium battery module.
And it is that 7.4V～8.4V (electric pressure rounds and is 8V) or generating positive and negative voltage are 11.1V～12.6V (voltage rounds and is 12V) that power supply unit U1 in the lithium battery module 10 and 20 and U2 all provide generating positive and negative voltage, and the battery capacity scope is: 800～1200mAH.
When respectively with the negative pole EB-of the anodal EB+ of lithium battery module 10 and lithium battery module 20 during as the both positive and negative polarity output of the utility model lithium battery; the monomer power supply that it forms one group of electric pressure is 14.8V～16.8V or 22.2V～25.2V; the battery capacity scope is: 800～1200mAH; and the opposed polarity combination is attached to the internal battery baffle respectively; realize the intelligent protection of battery charge and discharge process, comprise defencive functions such as overvoltage, overcurrent protection, constant voltage, constant current charge.When with the anodal EB+ of lithium battery module 10 and common port G during as the both positive and negative polarity output of the utility model lithium battery, or with the negative pole EB-of common port G and lithium battery module 20 during as the both positive and negative polarity output of the utility model lithium battery, it all provides generating positive and negative voltage is that 7.4V～8.4V or generating positive and negative voltage are 11.1V～12.6V, and the battery capacity scope is: the negative and positive dual power of 800～1200mAH.
Therefore, but the utility model lithium battery flexible Application both can be used as the dual power battery group and used, also can be used as single power supply and use.
In addition, the overall dimensions of the utility model lithium battery can be as required, design multiple shape and different size, can imply and be fixedly connected or standby replacing independent mode, its typical maximum volume is of a size of: 68mm * 38mm * 19mm or 68mm * 38mm * 25mm (error: ± 2mm).
And, described lithium battery voltage rate range and range of capacity, no matter overall dimensions and change of shape all belong to this patent interest field.
Compared with prior art, the utility model product has following beneficial effect:
1, the utility model product has creatively improved the electric pressure of direct current lithium battery, from 3.7V～4.2V monomer power supply 7.4V～8.4V when being increased to the dual power supply group or 11.1V～12.6V, when using as the monomer power supply, the voltage that it provides Grade is 14.8V～16.8V or 22.2V～25.2V, and battery capacity is constant.
2, the dual power supply lithium battery that the utility model proposes has improved the range of application of direct current lithium battery greatly, can be Need the electronic chip power supply of negative and positive dual power, thereby can derive other electronic products, originally can only use ac power supply method Realize that present available lithium battery direct current supply makes electronic product have mobility, improve reliability and stability, be not subjected to The revolutionary change such as the restriction of field of employment are with a wide range of applications.
3, the dual power supply lithium battery that the utility model proposes makes the lithium battery of the single capacity of original low-voltage, by special facture, Make the magnitude of voltage multiplication, improve power coefficient and result of use and enlarge range of application.
When 4, the utility model used as single supply, electric pressure reached 14.8V～16.8V or 22.2V～25.2V, can As the application of power of multiple ic more, need not to use ac circuit to carry out the loaded down with trivial details work such as rectification, filtering, electricity with direct Press more reliable and more stablely, its range of application is more extensive, derives more direct current supply product, and does not send out yet on the market at present Existing this type of dual power supply lithium battery.
5, the power supply unit in the utility model adopts polymeric material to make, and belongs to environment-friendly battery, uses for a long time or high temperature Shi Jun can not explode and injure personal safety.
6, overall dimensions of the present utility model can be according to product needed, design various shape and different size, properer product Outward appearance and structural design, can accomplish the advantages such as replacing attractive in appearance, for subsequent use is convenient.
Claims (6)
1, a kind of lithium battery that the direct current duplicate supply is provided is characterized in that, comprising:
Two lithium battery modules that direct current monomer power supply can independently be provided respectively, and two lithium battery module serial connections, the just very positive supply output of one of them lithium battery module, the negative pole of another lithium battery module is the negative supply output, and the common port of two lithium battery modules is the no-voltage output;
Wherein, each lithium battery module includes: polymeric material is made and chargeable power supply unit; Be connected the positive pole of power supply unit and the intelligent protection circuit between the negative pole.
2, the lithium battery that the direct current duplicate supply is provided according to claim 1, it is characterized in that, described intelligent protection circuit comprises: the intelligent management chip, and wherein two pins of this intelligent management chip are connected with negative pole with the positive pole of described power supply unit by resistance respectively; The electric capacity that is connected in parallel with described power supply unit; And the switch element between the negative pole of two wherein two pins that are connected to described intelligent management chip and described power supply unit.
3, the lithium battery that the direct current duplicate supply is provided according to claim 2 is characterized in that, described switch element is a field effect transistor;
The grid of two field effect transistor is connected with wherein two pins of described intelligent management chip respectively, the source electrode interconnection, and the drain electrode of one of them field effect transistor connects the negative pole of described power supply unit, and the drain electrode of another field effect transistor is the negative supply output of described lithium battery module.
4, the lithium battery that the direct current duplicate supply is provided according to claim 1 is characterized in that, two groups of output voltages that described power supply unit provides for ± 7.4V～8.4V or ± 11.1V～12.6V.One group of output voltage that single supply is provided when using is: 14.8V～16.8V or 22.2V～25.2V.
5, the lithium battery that the direct current duplicate supply is provided according to claim 1 is characterized in that, the capacity that described power supply unit provides is 800～1200mAH.
6, the lithium battery that the direct current duplicate supply is provided according to claim 1 is characterized in that, described power supply unit is the single lithium battery group that independent monomer lithium battery or lamination are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200939787U CN201262971Y (en) | 2008-05-14 | 2008-05-14 | Lithium battery for providing DC double power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200939787U CN201262971Y (en) | 2008-05-14 | 2008-05-14 | Lithium battery for providing DC double power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262971Y true CN201262971Y (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200939787U Expired - Fee Related CN201262971Y (en) | 2008-05-14 | 2008-05-14 | Lithium battery for providing DC double power supply |
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| Country | Link |
|---|---|
| CN (1) | CN201262971Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033926A (en) * | 2019-03-08 | 2020-04-17 | Oppo广东移动通信有限公司 | Battery cell protection circuit and electronic equipment |
-
2008
- 2008-05-14 CN CNU2008200939787U patent/CN201262971Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033926A (en) * | 2019-03-08 | 2020-04-17 | Oppo广东移动通信有限公司 | Battery cell protection circuit and electronic equipment |
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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: 20090624 Termination date: 20130514 |