CN201797020U - Parallel battery pack - Google Patents

Parallel battery pack Download PDF

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Publication number
CN201797020U
CN201797020U CN2010205403561U CN201020540356U CN201797020U CN 201797020 U CN201797020 U CN 201797020U CN 2010205403561 U CN2010205403561 U CN 2010205403561U CN 201020540356 U CN201020540356 U CN 201020540356U CN 201797020 U CN201797020 U CN 201797020U
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CN
China
Prior art keywords
battery
batteries
anode
input
preventing device
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
CN2010205403561U
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Chinese (zh)
Inventor
张同邦
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Huawei Device Co Ltd
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Huawei Device Co Ltd
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Filing date
Publication date
Application filed by Huawei Device Co Ltd filed Critical Huawei Device Co Ltd
Priority to CN2010205403561U priority Critical patent/CN201797020U/en
Application granted granted Critical
Publication of CN201797020U publication Critical patent/CN201797020U/en
Priority to PCT/CN2011/079227 priority patent/WO2012034481A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The utility model discloses a parallel battery pack, which belongs to the field of power supply. The parallel battery pack comprises a plurality of batteries, a plurality of anti-backflow devices, an input terminal, an output terminal, and a grounding terminal, wherein an anti-backflow device is arranged between the input terminal and each battery, the anode of each anti-backflow device is connected with the input terminal, and the cathode of the anti-backflow device is connected with the positive pole of the corresponding battery; the anti-backflow device is arranged between the output terminal and each battery, the anode of each anti-backflow is connected with the positive pole of the corresponding battery, and the cathode of the anti-backflow is connected with the output terminal; and the negative pole of each battery is connected with the grounding terminal. By virtue of the parallel battery pack, the phenomenon of backflow is prevented and the security of the battery pack is improved.

Description

A kind of batteries in parallel connection group
Technical field
The utility model relates to field of power supplies, particularly a kind of batteries in parallel connection group.
Background technology
In the high-power applications scene, the electric current that cell provides can't satisfy the demands, and needs with battery pack substituted monomer battery.With a plurality of batteries and be unified into battery pack, to improve supply current.
For example, as shown in Figure 1, with two batteries and be unified into a battery pack, this battery pack comprises two battery a, discharges and recharges port b and earth terminal c, wherein, the positive pole of two battery a all with discharge and recharge port b and link to each other, the negative pole of two battery a all is connected on the earth terminal c.Wherein, with two battery a parallel connection, improved supply current.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art:
In existing batteries in parallel connection group the positive pole of each cell all with discharge and recharge port and link to each other, when the voltage of the battery in the battery pack there are differences or battery discharge curve when inconsistent, can cause high-tension battery to impact the battery of low-voltage by discharging and recharging port, pour in down a chimney and electric current takes place, have very big potential safety hazard.
The utility model content
In order to prevent that electric current from pouring in down a chimney, improve fail safe, the utility model provides a kind of batteries in parallel connection group.Described technical scheme is as follows:
A kind of batteries in parallel connection group, described batteries in parallel connection group comprises:
A plurality of batteries, a plurality of backward flowing preventing device, input, output and ground;
A backward flowing preventing device is set between described input and each battery, and the anode of each backward flowing preventing device links to each other with described input, and negative electrode links to each other with the positive pole of corresponding battery;
Between described output and described each battery a backward flowing preventing device is set, the anode of each backward flowing preventing device links to each other with the positive pole of corresponding battery, and negative electrode links to each other with described output;
The negative pole of described each battery all links to each other with described earth terminal.
By backward flowing preventing device being set between input and each battery and between each battery and output, backward flowing preventing device being set, stop the electric current of each battery to flow into input and stop the electric current of output to flow into each battery from anode, thereby preventing that each battery from flowing into by input and/or output in other the battery pours in down a chimney phenomenon, has improved fail safe.
Description of drawings
Fig. 1 is a kind of batteries in parallel connection group schematic diagram that prior art provides;
Fig. 2 is a kind of batteries in parallel connection group schematic diagram that the utility model embodiment 1 provides;
Fig. 3 is the batteries in parallel connection group schematic diagram that two batteries that the utility model embodiment 1 provides are formed;
Fig. 4 is the batteries in parallel connection group schematic diagram that three batteries that the utility model embodiment 1 provides are formed.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model execution mode is described in further detail below in conjunction with accompanying drawing.In the middle of the application, " a plurality of " speech means at least two.
Embodiment 1
As shown in Figure 2, the embodiment of the invention provides a kind of batteries in parallel connection group, comprising:
A plurality of batteries 1, a plurality of backward flowing preventing device 2, input 3, output 4 and earth terminal 5;
A backward flowing preventing device 2 is set between input 3 and each battery 1, and the anode of each backward flowing preventing device 2 links to each other with input 3, and negative electrode links to each other with the positive pole of corresponding battery 1;
A backward flowing preventing device 2 is set between output 4 and each battery 1, and the anode of each backward flowing preventing device 2 links to each other with the positive pole of corresponding battery 1, and negative electrode links to each other with output 4;
The negative pole of each battery 1 all links to each other with earth terminal 5.
Wherein, power supply is linked to each other with input 3, can realize the charging of batteries in parallel connection group is linked to each other load with output 4, can realize the batteries in parallel connection group is discharged.
Wherein, electric current can only flow into negative electrode from anode in backward flowing preventing device 2, and the blocking-up electric current flows into anode from negative electrode.Therefore, between each battery 1 and input 3, backward flowing preventing device 2 is set, and the anode of each backward flowing preventing device 2 links to each other with input 3, negative electrode links to each other with the positive pole of corresponding battery 1, thereby the electric current that makes each battery 1 emit can't flow into input 3 and flow into other the battery 1 from input 3, prevents that electric current from pouring in down a chimney phenomenon and taking place; With output backward flowing preventing device 2 is set at each battery 1, and the anode of each backward flowing preventing device 2 links to each other with the positive pole of corresponding battery 1, negative electrode with all link to each other with output 4, thereby make electric current to flow into each battery 1 from output 4, and then the electric current that makes each battery 1 emit can't flow into other the battery 1 from output 4, prevents that electric current from pouring in down a chimney the generation of phenomenon.
Wherein, backward flowing preventing device 1 can be diode.
For example, referring to Fig. 3, with two batteries and be unified into the batteries in parallel connection group, this batteries in parallel connection group comprises that two batteries are respectively battery 11 and 12, four diodes are respectively diode 21,22,23 and 24, input 3, output 4 and earth terminal 5;
Input 3 links to each other with 22 anode with two diodes 21 respectively, and diode 21 and 22 negative electrode link to each other with 12 positive pole with two batteries 11 respectively;
Battery 11 and 12 positive pole link to each other with 24 anode with remaining two diodes 23 respectively, and diode 23 all links to each other with output 4 with 24 negative electrode;
Battery 11 all links to each other with earth terminal 5 with 12 negative pole.
Wherein, the electric current of input 3 can be respectively flows into from the anode of diode 21 and 22, flow to the positive pole of battery 11 and 12 more respectively from the negative electrode of diode 11 and 12, and the electric current of battery 11 and 12 can't be respectively flows into from the negative electrode of diode 21 and 22, flow to input 3 from the anode of diode 21 and 22 respectively again, therefore, the electric current of battery 11 can't flow into battery 12 by input 3, and the electric current of same battery 12 also can't flow into battery 11 by input 3.
Wherein, battery 21 and 22 electric current can be respectively flow into from the anode of diode 23 and 24, flow into output 4 from the negative electrode of diode 23 and 24 respectively again, and the electric current of output 4 can't be respectively flows into from the negative electrode of diode 23 and 24, flow into battery 11 and 12 from the anode of diode 23 and 24 respectively again, therefore, the electric current of battery 11 can't flow into battery 12 by input 3, and the electric current of same battery 12 also can't flow into battery 11 by input 3.
For another example, referring to Fig. 4, with three batteries and be unified into the batteries in parallel connection group, this batteries in parallel connection group comprises 11,12 and 13, six diodes 21,22,23,24,25 and 26 of three batteries, input 3, output 4 and earth terminal 5;
Input 3 links to each other with 23 anode with three diodes 21,22 respectively, and diode 21,22 and 23 negative electrode link to each other with 13 positive pole with three batteries 11,12 respectively;
Battery 11,12 and 13 positive pole link to each other with 26 anode with remaining three diodes 24,25 respectively, and diode 24,25 all links to each other with output 4 with 26 negative electrode;
Battery 11,12 all links to each other with earth terminal 5 with 13 negative pole.
Wherein, the electric current of input 3 can be respectively flows into from the anode of diode 21,22 and 23, flow to the positive pole of battery 11,12 and 13 more respectively from the negative electrode of diode 21,22 and 23, and the electric current of battery 11,12 and 13 can't be respectively flows into from the negative electrode of diode 21,22 and 23, flow to input 3 from the anode of diode 21,22 and 23 respectively again, therefore, the electric current of battery 11 can't flow into battery 12 and 13 by input 3, and same battery 12 or 13 electric current also can't flow into other battery from input 3.
Wherein, battery 11,12 and 13 electric current can be respectively flow into from the anode of diode 23,24 and 25, flow into output 4 from the negative electrode of diode 23,24 and 25 respectively again, and the electric current of output 4 can't be respectively flows into from the negative electrode of diode 23,24 and 25, flow into battery 11,12 and 13 from the anode of diode 23,24 and 25 respectively again, therefore, the electric current of battery 11 can't flow into battery 12 and 13 by output 4, and same battery 12 or 13 electric current also can't flow into other battery from output 4.
In embodiments of the present invention, by backward flowing preventing device being set between input and each battery and between each battery and output, backward flowing preventing device being set, stop the electric current of each battery to flow into each battery from the electric current that flow into input and output, thereby preventing that each battery from flowing into by input and/or output in other the battery pours in down a chimney phenomenon, has improved fail safe.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.

Claims (3)

1. a batteries in parallel connection group is characterized in that, described batteries in parallel connection group comprises:
A plurality of batteries, a plurality of backward flowing preventing device, input, output and ground;
A backward flowing preventing device is set between described input and each battery, and the anode of each backward flowing preventing device links to each other with described input, and negative electrode links to each other with the positive pole of corresponding battery;
Between described output and described each battery a backward flowing preventing device is set, the anode of each backward flowing preventing device links to each other with the positive pole of corresponding battery, and negative electrode links to each other with described output;
The negative pole of described each battery all links to each other with described earth terminal.
2. batteries in parallel connection group as claimed in claim 1 is characterized in that described backward flowing preventing device makes electric current flow into negative electrode from anode, and the blocking-up electric current flow into anode from negative electrode.
3. batteries in parallel connection group as claimed in claim 1 or 2 is characterized in that, described backward flowing preventing device is a diode.
CN2010205403561U 2010-09-19 2010-09-19 Parallel battery pack Expired - Lifetime CN201797020U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010205403561U CN201797020U (en) 2010-09-19 2010-09-19 Parallel battery pack
PCT/CN2011/079227 WO2012034481A1 (en) 2010-09-19 2011-09-01 Parallel battery pack

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Application Number Priority Date Filing Date Title
CN2010205403561U CN201797020U (en) 2010-09-19 2010-09-19 Parallel battery pack

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WO (1) WO2012034481A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012034481A1 (en) * 2010-09-19 2012-03-22 华为终端有限公司 Parallel battery pack
US9459674B2 (en) 2012-11-21 2016-10-04 Asustek Computer Inc. Power integration module and electronic device
CN106300321A (en) * 2016-08-31 2017-01-04 四川升华电源科技有限公司 Power supply anti-back flow circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713597A (en) * 1985-12-04 1987-12-15 Powerplex Technologies, Inc. Silicon diode looping element for protecting a battery cell
CN200990518Y (en) * 2006-12-26 2007-12-12 天津华云自控股份有限公司 Buffer circuit of accumulator pile charging and discharging
CN201365130Y (en) * 2008-12-12 2009-12-16 天津力神电池股份有限公司 Application circuit of lithium iron phosphate battery
CN101505066A (en) * 2009-03-04 2009-08-12 上海闻泰电子科技有限公司 Trickle charging circuit for mobile phone
CN101572426A (en) * 2009-03-13 2009-11-04 温州市创力电子有限公司 Charge-discharge control system of storage battery
CN201797020U (en) * 2010-09-19 2011-04-13 华为终端有限公司 Parallel battery pack

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012034481A1 (en) * 2010-09-19 2012-03-22 华为终端有限公司 Parallel battery pack
US9459674B2 (en) 2012-11-21 2016-10-04 Asustek Computer Inc. Power integration module and electronic device
CN106300321A (en) * 2016-08-31 2017-01-04 四川升华电源科技有限公司 Power supply anti-back flow circuit

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20171030

Address after: Metro Songshan Lake high tech Industrial Development Zone, Guangdong Province, Dongguan City Road 523808 No. 2 South Factory (1) project B2 -5 production workshop

Patentee after: HUAWEI terminal (Dongguan) Co., Ltd.

Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No.

Patentee before: Huawei Device Co., Ltd.

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder

Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province

Patentee after: Huawei Device Co., Ltd.

Address before: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province

Patentee before: HUAWEI terminal (Dongguan) Co., Ltd.

CP01 Change in the name or title of a patent holder
CX01 Expiry of patent term

Granted publication date: 20110413

CX01 Expiry of patent term