CN103872278A - Cell installation structure for lithium cell module - Google Patents

Cell installation structure for lithium cell module Download PDF

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Publication number
CN103872278A
CN103872278A CN201410082560.6A CN201410082560A CN103872278A CN 103872278 A CN103872278 A CN 103872278A CN 201410082560 A CN201410082560 A CN 201410082560A CN 103872278 A CN103872278 A CN 103872278A
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CN
China
Prior art keywords
box body
baffle
battery core
battery
fastening structure
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.)
Granted
Application number
CN201410082560.6A
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Chinese (zh)
Other versions
CN103872278B (en
Inventor
姚清
王正伟
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.)
Phylion Battery Co Ltd
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SUZHOU PHYLION BATTERY 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.)
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Publication date
Application filed by SUZHOU PHYLION BATTERY CO Ltd filed Critical SUZHOU PHYLION BATTERY CO Ltd
Priority to CN201410082560.6A priority Critical patent/CN103872278B/en
Publication of CN103872278A publication Critical patent/CN103872278A/en
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Publication of CN103872278B publication Critical patent/CN103872278B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention discloses a cell installation structure for a lithium cell module. The cell installation structure comprises a box body and an upper cover and is characterized in that multiple insulating spacers are distributed at the internal of the box body, electric core containing positions are formed between two adjacent insulating spacers and between the insulating spacers at the two ends and the end plates of the box body; a protection plate is covered above each electric core containing position; a protection circuit is arranged on the protection plate; multiple electric connecting parts which are communicated with the protection circuit are arrayed at the two sides of the protection plate; when the electric cores are installed, the two ends of each electric connecting part are respectively electrically connected with the leading electrodes of adjacent electric cores; the upper cover covers the protection plate and is fixedly connected with the box body. According to the invention,the electric core installation is simple in work procedure and reliable in quality and the length and complexity of wiring are reduced.

Description

For the battery fastening structure of lithium battery module
Technical field
The present invention relates to a kind of constitutional detail of Rechargeable battery, be specifically related to a kind of battery fastening structure for lithium battery module.
Background technology
High-energy-density, low pollution, cycle life are high owing to having for lithium battery, memory-less effect, can quick charge etc. characteristic, be widely used.And along with the development in the markets such as new energy vehicle, electrical network energy storage, communication base station, the application market of lithium battery is further extended.
When as battery of electric vehicle for example, need to carry out parallel connection or series connection is used by multiple battery cores.Thus, need to be provided for the battery fastening structure of lithium battery module.Due to the feature that discharges and recharges of lithium battery, the mistake of its low-voltage is put or self discharge reaction can cause lithium ion active material to decompose destruction, causes battery performance to be subject to heavy damage, even blast and overcharge Shi Zehui.Therefore, lithium battery module needs assembly protective circuit and equalizing circuit, coordinates with it, need to draw the voltage signal of each battery core.
In prior art; conventionally adopt the battery core of epoxy plate separating adjacent; then with adhesive tape binding location; welding signal line extraction voltage signal on the extraction electrode of each battery core; be connected on the baffle that is located at battery core group one end; be welded to connect the electrode of adjacent battery core with welding, realize serial or parallel connection.Therefore, above-mentioned lithium battery module group assembling complex procedures, winding displacement are many; Meanwhile, because each voltage signal line need to be connected to respectively on the baffle of battery core group one end, cable run distance is long, connects complicated.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of battery fastening structure for lithium battery module, by architecture advances, simplifies the installation procedure of lithium battery module, reduces wiring complexity, guarantees the quality of lithium battery module.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of battery fastening structure for lithium battery module, comprise box body and upper cover, in described box body, be distributed with multiple insulating spacers, between adjacent insulating spacer and form battery core between the insulating spacer at two ends and the end plate of box body and hold position, being covered in each battery core holds and on position, is provided with baffle, baffle is provided with protective circuit, described baffle arranged on both sides has multiple electrical connections that are communicated with protective circuit, under battery core installment state, the two ends of each electrical connection are electrically connected with the extraction electrode of adjacent battery core respectively, the coated described baffle of described upper cover is also fixedly connected with described box body.
In technique scheme; when installation; first each battery core is inserted respectively to each battery core and hold position; extraction electrode is towards open side; again baffle is covered to each battery core and hold top, position; the extraction electrode of each battery core is aimed at respectively and compressed to each electrical connection on baffle, then cover upper cover fixed cover and box body.Usually, battery core is held cavity thickness and the battery core thickness matching of position, clamping structure also can be set on insulating spacer to fix battery core, and thus, each insulating spacer has played the double action of insulation and location simultaneously.Baffle is arranged at the top of battery core, and power outlet can be arranged on baffle, and electrical connection plays the effect of voltage signal lead-out wire and battery electrode connecting line simultaneously, has reduced length of arrangement wire and complexity.
Preferred technical scheme; described electrical connection is by stretching out in the joint pin of described baffle side, arranging and form with the brace of joint pin welding perpendicular to joint pin; the two ends of described brace are elastic tip, under battery core installment state, compress and are connected respectively with the extraction electrode of adjacent battery core.
Further technical scheme, described box body is connected and composed by left and right two and half shells, and described in each, insulating spacer forms by being connected to the half-breadth partition on left and right two and half shells and connecing.Adopt two half-shell structures, can facilitate battery core installation process, when installation, first battery core is inserted between each half-breadth partition of one of them half shell, due to two sides opening, insert more conveniently, after completing, another half shell entirety is inserted between each battery core again, two and half shells are merged becomes a housing.
In technique scheme, described left and right two and half shells are integrally formed structure by ultra-sonic welded.
Or described left and right two and half shells adopt screw to be fixedly connected with.
Further technical scheme, covers corresponding to the protective circuit on baffle on described and is provided with radiator structure.For example, in the time that multiple metal-oxide-semiconductor structure is set in protective circuit, can be by multiple metal-oxide-semiconductors near arranging; cover corresponding this region division radiator structure upper, for example, cover perforate upper; recessed metal fin is set in hole, and when installation, metal fin contacts heat radiation with metal-oxide-semiconductor.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, the present invention adopts box body to form the mounting structure of lithium battery module, fixing insulating spacer is set in box body in order to separating adjacent battery core, has played the effect of insulation and location simultaneously; Therefore, battery core of the present invention does not need when mounted to insert successively epoxy plate and ties up with adhesive tape, the simple and reliable in quality of operation.
2, the present invention will arrange baffle above box body, and protective circuit is located on baffle, and lead pitch is from short; Meanwhile, in baffle both sides, electrical connection is set, for connecting the extraction electrode of adjacent battery core, had both realized voltage signal and introduced, realize again battery series connection (or in parallel), do not need weldingvoltage holding wire and electrode successively to draw welding, simplified installation procedure.
Accompanying drawing explanation
Fig. 1 is the structure exploded perspective view of embodiment mono-;
Fig. 2 is embodiment mono-middle shell scheme of installation;
Fig. 3 is the schematic diagram that baffle is installed in embodiment mono-;
Fig. 4 is the schematic diagram that upper cover is installed in embodiment mono-;
Fig. 5 be embodiment mono-obtain the battery fastening structure schematic diagram after lithium battery module is installed.
Wherein: 1, upper cover; 4, brace; 5, left shell; 6, battery core; 8, insulating spacer; 9, right shell; 10, joint pin; 12, baffle.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment mono-: shown in Figure 1, a kind of battery fastening structure for lithium battery module, comprise box body and upper cover 1, in described box body, be distributed with multiple insulating spacers 8, between adjacent insulating spacer 8 and form battery core between the insulating spacer at two ends and the end plate of box body and hold position.
In the present embodiment, described box body 1 is connected and composed by left shell 5,9 two half shells of right shell, and described in each, insulating spacer 8 forms by being connected to the half-breadth partition on left and right two and half shells and connecing.
Being covered in each battery core holds and on position, is provided with baffle 12; baffle 12 is provided with protective circuit; described baffle 12 arranged on both sides have multiple electrical connections that are communicated with protective circuit; under battery core installment state; the two ends of each electrical connection are electrically connected with the extraction electrode of adjacent battery core respectively; the coated described baffle 12 of described upper cover 1 is also fixedly connected with described box body, on described upper cover 1, is provided with radiator structure corresponding to the protective circuit on baffle.
Described electrical connection is by stretching out in the joint pin 10 of described baffle side, arranging and form with the brace 4 of joint pin welding perpendicular to joint pin 10; the two ends of described brace 4 are elastic tip, under battery core installment state, compress and are connected respectively with the extraction electrode of adjacent battery core 6.
When installation, as shown in Figure 2, the battery core that first battery core 6 is packed one by one in order into one and half shells is held in position, then by another half cap, adopts ultra-sonic welded or screw to fix two and half shells are connected and composed to a housing.Between adjacent battery core, separated by partition, partition plays the effect of insulation and location simultaneously.Usually, be to guarantee the connection of box body, adopt ultra-sonic welded to connect left shell and right shell, and with nickel plated steel strip around box body, play fastening effect.
As shown in Figure 3; straight baffle with protective circuit 12 dress is installed in battery core group; by the adjacent battery core 6 of electrical connection cross-over connection; electrical connection had both played the effect of battery core series connection; voltage signal is directly guided in the protective circuit on baffle simultaneously, saved the trouble that uses holding wire.
As shown in Figure 4, after installing baffle, cover upper cover 1, use ultra-sonic welded that upper cover is fixedly connected with box body.The product assembling finally obtaining as shown in Figure 5.

Claims (6)

1. the battery fastening structure for lithium battery module, comprise box body and upper cover, it is characterized in that: in described box body, be distributed with multiple insulating spacers, between adjacent insulating spacer and form battery core between the insulating spacer at two ends and the end plate of box body and hold position, being covered in each battery core holds and on position, is provided with baffle, baffle is provided with protective circuit, described baffle arranged on both sides has multiple electrical connections that are communicated with protective circuit, under battery core installment state, the two ends of each electrical connection are electrically connected with the extraction electrode of adjacent battery core respectively, the coated described baffle of described upper cover is also fixedly connected with described box body.
2. the battery fastening structure for lithium battery module according to claim 1; it is characterized in that: described electrical connection is by stretching out in the joint pin of described baffle side, arranging and form with the brace of joint pin welding perpendicular to joint pin; the two ends of described brace are elastic tip, under battery core installment state, compress and are connected respectively with the extraction electrode of adjacent battery core.
3. the battery fastening structure for lithium battery module according to claim 1, it is characterized in that: described box body is connected and composed by left and right two and half shells, described in each, insulating spacer forms by being connected to the half-breadth partition on left and right two and half shells and connecing.
4. the battery fastening structure for lithium battery module according to claim 3, is characterized in that: described left and right two and half shells are integrally formed structure by ultra-sonic welded.
5. the battery fastening structure for lithium battery module according to claim 3, is characterized in that: described left and right two and half shells adopt screw to be fixedly connected with.
6. the battery fastening structure for lithium battery module according to claim 1, is characterized in that: on described, cover corresponding to the protective circuit on baffle and be provided with radiator structure.
CN201410082560.6A 2014-03-08 2014-03-08 Battery fastening structure for lithium battery module Active CN103872278B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410082560.6A CN103872278B (en) 2014-03-08 2014-03-08 Battery fastening structure for lithium battery module

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Application Number Priority Date Filing Date Title
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CN103872278B CN103872278B (en) 2016-08-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107221630A (en) * 2017-07-14 2017-09-29 东莞市百维科技有限公司 Battery protecting plate and supply unit
CN107369852A (en) * 2017-07-28 2017-11-21 东莞市永邦新能源科技有限公司 A kind of lithium battery packaging technology
CN114824634A (en) * 2022-05-31 2022-07-29 浙江吉利控股集团有限公司 Battery pack, power battery system and vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201160085Y (en) * 2007-12-11 2008-12-03 天津力神电池股份有限公司 Large-scale lithium ion power battery pack
CN101662037A (en) * 2008-08-06 2010-03-03 株式会社Lg化学 Manufacturing method of battery pack and manufacturing process monitoring system for the same
EP2698847A1 (en) * 2012-01-03 2014-02-19 LG Chem, Ltd. Battery pack and connecting bar applied to same
CN203760541U (en) * 2014-03-08 2014-08-06 苏州星恒电源有限公司 Battery mounting structure for lithium battery module

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201160085Y (en) * 2007-12-11 2008-12-03 天津力神电池股份有限公司 Large-scale lithium ion power battery pack
CN101662037A (en) * 2008-08-06 2010-03-03 株式会社Lg化学 Manufacturing method of battery pack and manufacturing process monitoring system for the same
EP2698847A1 (en) * 2012-01-03 2014-02-19 LG Chem, Ltd. Battery pack and connecting bar applied to same
CN203760541U (en) * 2014-03-08 2014-08-06 苏州星恒电源有限公司 Battery mounting structure for lithium battery module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107221630A (en) * 2017-07-14 2017-09-29 东莞市百维科技有限公司 Battery protecting plate and supply unit
CN107369852A (en) * 2017-07-28 2017-11-21 东莞市永邦新能源科技有限公司 A kind of lithium battery packaging technology
CN114824634A (en) * 2022-05-31 2022-07-29 浙江吉利控股集团有限公司 Battery pack, power battery system and vehicle

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Address after: 215153 Suzhou high tech Zone, Jiangsu city science and technology, Jinsha River Road, No. 181

Patentee after: Phylion battery Limited by Share Ltd

Address before: 215153 Suzhou high tech Zone, Jiangsu City, science and technology zone, Jinsha River Road, No. 181

Patentee before: Suzhou Phylion Battery Co., Ltd.