CN203911511U - Parallel charging circuit for multiple lithium batteries - Google Patents
Parallel charging circuit for multiple lithium batteries Download PDFInfo
- Publication number
- CN203911511U CN203911511U CN201420171469.7U CN201420171469U CN203911511U CN 203911511 U CN203911511 U CN 203911511U CN 201420171469 U CN201420171469 U CN 201420171469U CN 203911511 U CN203911511 U CN 203911511U
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- CN
- China
- Prior art keywords
- lithium battery
- lithium
- circuit
- batteries
- charging
- 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 - Fee Related
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Classifications
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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)
- Secondary Cells (AREA)
Abstract
The utility model provides a parallel charging circuit for multiple lithium batteries. The parallel charging circuit comprises a direct current power supply. The direct current power supply is connected with a plurality of lithium battery charging integrated circuits respectively. Each lithium battery charging integrated circuit is connected with a lithium battery protection circuit. Each lithium battery protection circuit is connected with a lithium battery. Current of the direct current power supply respectively passes through the plurality of lithium battery charging integrated circuits and the plurality of lithium battery protection circuits so as to charge the lithium batteries independently. Compared with the prior art, the parallel charging circuit can prevent a phenomenon that in the synchronous charging process of serially-connected lithium batteries, batteries with small capacity are repeatedly charged while batteries with large capacity are not completely charged. With the parallel charging circuit, the lithium batteries can be fully charged in each charging and are prevented from being overcharged, the charging efficiency of the lithium batteries is effectively improved, and the service life of each lithium battery is prolonged.
Description
Technical field
The utility model relates to a kind of charged in parallel circuit of multisection lithium battery.
Background technology
As shown in Figure 1; existing lithium battery charging circuit comprises that DC power supply 91, described DC power supply are connected with a lithium cell charging integrated circuit 92, described lithium cell charging integrated circuit is connected with a lithium battery protection circuit 93, and described lithium battery protection circuit 93 is connected with the lithium battery 94 of multi-section serial.Otherness due to each lithium battery in the lithium battery 94 of multi-section serial, charging simultaneously there will be the lithium battery 94 that capacity is little to be first full of electricity, and lithium battery 94 capacious is not also full of electric phenomenon, when lithium battery 94 capacious is full of electricity, the lithium battery 94 that capacity is little charges repeatedly repeatedly, can reduce the useful life of the lithium battery 94 that capacity is little.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of charged in parallel circuit that can extend the multisection lithium battery in lithium battery useful life is provided.
The utility model is to realize like this; a kind of charged in parallel circuit of multisection lithium battery; comprise DC power supply; described DC power supply is connected with a plurality of lithium cell charging integrated circuits respectively; described in each, lithium cell charging integrated circuit is connected with a lithium battery protection circuit respectively, and described in each, lithium battery protection circuit is connected with a lithium battery respectively.
The electric current of DC power supply of the present utility model charges separately to lithium battery through a plurality of lithium cell charging integrated circuits and lithium battery protection circuit respectively; Compared with prior art, the utility model has been avoided the lithium battery to multi-section serial to charge causing the lithium battery that capacity is little repeatedly to charge simultaneously, and lithium battery capacious is not also full of electric phenomenon, the utility model has guaranteed that lithium battery can be full of electricity at every turn, nor can be to over-charge of lithium battery, effectively improve the charge efficiency of lithium battery, extended the useful life of lithium battery.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the serial connection charge circuit of the multisection lithium battery that provides of prior art;
Fig. 2 is the schematic diagram of the charged in parallel circuit of the multisection lithium battery that provides of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in Figure 2; the charged in parallel circuit of a kind of multisection lithium battery that the utility model embodiment provides; comprise DC power supply 1; DC power supply 1 is connected with a plurality of lithium cell charging integrated circuits 2 respectively; each lithium cell charging integrated circuit 2 is connected with a lithium battery protection circuit 3 respectively, and each lithium battery protection circuit 3 is connected with a lithium battery 4 respectively.
Operation principle of the present utility model is: DC power supply 1 is given respectively a plurality of lithium cell charging integrated circuit 2 power supplies; lithium cell charging integrated circuit 2 controls to needed scope by the voltage and current of DC power supply 1; electric current charges separately to lithium battery 4 by the lithium battery protection circuit 3 being connected with each lithium cell charging integrated circuit 2 respectively; when single lithium battery 4 electric weight are full of; lithium battery protection circuit 3 stops, to lithium battery 4 chargings, there will not be the repeated multiple times phenomenon to lithium battery 4 chargings.
The electric current of DC power supply 1 of the present utility model charges separately to lithium battery 4 through a plurality of lithium cell charging integrated circuits 2 and lithium battery protection circuit 3 respectively; Compared with prior art, the utility model has been avoided the lithium battery to multi-section serial to charge causing the repeated multiple times charging of lithium battery that capacity is little simultaneously, and lithium battery capacious is not also full of electric phenomenon, the utility model has guaranteed that lithium battery 4 can be full of electricity at every turn, nor can overcharge lithium battery 4, effectively improve the charge efficiency of lithium battery 4, extended the useful life of lithium battery 4.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.
Claims (1)
1. the charged in parallel circuit of a multisection lithium battery; comprise DC power supply; it is characterized in that; described DC power supply is connected with a plurality of lithium cell charging integrated circuits respectively; described in each, lithium cell charging integrated circuit is connected with a lithium battery protection circuit respectively, and described in each, lithium battery protection circuit is connected with a lithium battery respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171469.7U CN203911511U (en) | 2014-04-10 | 2014-04-10 | Parallel charging circuit for multiple lithium batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171469.7U CN203911511U (en) | 2014-04-10 | 2014-04-10 | Parallel charging circuit for multiple lithium batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911511U true CN203911511U (en) | 2014-10-29 |
Family
ID=51785757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420171469.7U Expired - Fee Related CN203911511U (en) | 2014-04-10 | 2014-04-10 | Parallel charging circuit for multiple lithium batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911511U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901392A (en) * | 2015-06-25 | 2015-09-09 | 广西师范大学 | Electric energy storage system of water wave generating device and control method thereof |
| CN105337379A (en) * | 2015-12-14 | 2016-02-17 | 重庆地质仪器厂 | Power device |
| CN105391134A (en) * | 2015-12-14 | 2016-03-09 | 重庆地质仪器厂 | Mobile power supply apparatus |
-
2014
- 2014-04-10 CN CN201420171469.7U patent/CN203911511U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901392A (en) * | 2015-06-25 | 2015-09-09 | 广西师范大学 | Electric energy storage system of water wave generating device and control method thereof |
| CN105337379A (en) * | 2015-12-14 | 2016-02-17 | 重庆地质仪器厂 | Power device |
| CN105391134A (en) * | 2015-12-14 | 2016-03-09 | 重庆地质仪器厂 | Mobile power supply apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20180410 |