CN104979509A - Connection-strap-free fast-connection energy storage battery case for hard-packaged lithium batteries with non-threaded-connection posts - Google Patents

Connection-strap-free fast-connection energy storage battery case for hard-packaged lithium batteries with non-threaded-connection posts Download PDF

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Publication number
CN104979509A
CN104979509A CN201510413065.3A CN201510413065A CN104979509A CN 104979509 A CN104979509 A CN 104979509A CN 201510413065 A CN201510413065 A CN 201510413065A CN 104979509 A CN104979509 A CN 104979509A
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China
Prior art keywords
lithium battery
hard roll
roll lithium
battery case
storage battery
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CN201510413065.3A
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CN104979509B (en
Inventor
朱连峻
高虎
刘明义
徐越
亓海青
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Huaneng Clean Energy Research Institute
Huaneng Group Technology Innovation Center Co Ltd
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Huaneng Clean Energy Research Institute
Huaneng Group Technology Innovation Center Co Ltd
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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
    • 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)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Disclosed is a connection-strap-free fast-connection energy storage battery case for hard-packaged lithium batteries with non-threaded-connection posts. The energy storage battery case includes a case frame and a plurality of storage subunits, containing the hard-packaged lithium batteries, installed in the case frame. In each storage subunit, a spring strip is arranged on a pedestal of the case; the top parts of the hard-packaged lithium batteries are equipped with a line contact bank where connecting terminals are embedded; and the connecting terminals are corresponding to posts of the hard-packaged lithium batteries one by one. The spring strips act on and apply elastic force to the bottoms of the hard-packaged lithium batteries, so that the posts closely contact with the connecting terminals. A distributed stereometrical layout is adopted in the energy storage battery case, and close contact of the posts of the hard-packaged lithium batteries and the corresponding connecting terminals is always ensured by means of the elastic force from the spring strip. Troubles of threaded connection and connection strap welding are avoided. Series-parallel connection of hard-packaged lithium batteries is realized by connecting each connecting terminal. Each lithium battery subunit can be fast inserted, pulled out, and replaced in individual. The energy storage battery case can be manufactured in a two-case or multi-case form according to requirements.

Description

A kind of pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast
Technical field
The invention belongs to power energy storage technical field, particularly a kind of pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast.
Background technology
Along with the development of society and economy level, people to the demand of electricity and reliability requirement more and more higher.On the one hand, traditional electrical net is faced with that load increases fast, the challenge such as peak-valley difference expanding day and the increase of long distance power transmission cost; Simultaneously; because of increasingly sharpening of the problem such as energy crisis and ecological deterioration; the development of the regenerative resource such as wind energy, solar energy is more and more subject to people's attention, but these are intermittent, the access of the regenerative resource of fluctuation brings certain influence to the safety of electrical network, stable operation.On the other hand, for maximally utilising regenerative resource, improving electric network reliability, when bulk power grid breaks down, often need these regenerative resources to be formed on the spot micro-capacitance sensor or do not access bulk power grid all the time and carry out lonely net (isolated island) power supply; Because to support without bulk power grid and containing the intermittent renewable energy and kinematic nonlinearity load, during isolated power grid, the stability of system and reliability face a severe test.Being applied as of energy storage technology solves the problems such as the peak load shifting of grid side, the regenerative resource of Generation Side access on a large scale and provides a kind of effective mode, especially maintains lonely net stable operation.
Different according to power conversion form, energy storage technology can be divided into: mechanical energy storage is as pumped storage, compressed-air energy storage and flywheel energy storage; Power Flow is as super conductive magnetic storage energy and ultracapacitor energy storage; Electrochemical energy storage is as all kinds of batteries to store energy and flow battery energy storage etc.Wherein pumped storage and compressed-air energy storage are subject to region limitations affect very large; The duration of flywheel energy storage, super conductive magnetic storage energy and ultracapacitor energy storage is shorter, and the longest energy storage time is generally no more than 15min; It is large that electrochemical energy storage technology has energy density, and the duration is long, and does not limit by region, the relative advantages of higher of efficiency, is the extensive power energy storage technology having application prospect at present most.
Battery, owing to holding quantitative limitation, needs to obtain required output voltage and electric current with after multiple battery unit connection in series-parallel.In connection between cell, contact resistance is a very important characteristic, and contact resistance is larger, and the thermal power that battery pack operationally consumes is larger, and the size of contact resistance and contact are inversely proportional to.Mostly syndeton between current Hard Roll lithium ion battery is to adopt and is bolted connection or uses brace laser welding.Adopt bolted to be connected to when battery is given a shock and easily to loosen, cause that junction contacts connection position heating in internal resistance increase, charge and discharge process, battery performance worsens the even problem such as Joint failure; When adopting brace laser welding, because two electrode terminals adopt dissimilar metal, the laser welding poor effect of brace and dissimilar metal, junction is oxidizable, laser welding also exists that complex process, cost are higher, the welding of multilayer pole plate time the phenomenon such as not prison welding.In addition, extremely inconvenience is safeguarded in these two kinds of connected mode dismounting.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of pole non-threaded connection Hard Roll lithium battery to exempt from brace and connect energy-storage battery case fast, large electric energy storage system is decomposed, utilize chemical cell as storing sub-units, adopt the three-dimensional layout of distribution, elastic force by elastic spring ensures the close contact of battery electrode column and corresponding wiring terminal all the time, eliminate and be threaded and the trouble of brace welding, only need connect the connection in series-parallel that each binding post can realize between battery.In addition, each lithium battery subelement independently can be changed by fast insert-pull, and battery energy storage case can be made into wing-rooms on either side of a one-story house or many railway carriage or compartments form as required.Thus solve the dilatation problem of pole Hard Roll lithium battery in energy storage device, the advantages such as have installation and maintenance simple, use flexibly, cost is low, and reliability is high
To achieve these goals, the technical solution used in the present invention is:
A kind of pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast, the some storing sub-units comprising Hard Roll lithium battery 3 comprising box frame 8 and be installed in box frame 8, in described each storing sub-units, cabinet base 1 is installed elastic spring 2, the top of Hard Roll lithium battery 3 arranges the line bank 5 being embedded with binding post 7, pole 9 one_to_one corresponding of binding post 7 and Hard Roll lithium battery 3, the bottom that elastic spring 2 acts on Hard Roll lithium battery 3 applies elastic force to it, thus makes pole 9 and binding post 7 close contact.
Multiple Hard Roll lithium battery 3 be independently fixed in box frame 8 is included in described each storing sub-units, described elastic spring 2 and Hard Roll lithium battery 3 one_to_one corresponding, parallel distribution on cabinet base 1, described line bank 5 and Hard Roll lithium battery 3 one_to_one corresponding, each line bank 5 installs two.
Described line bank 5 is installed on box frame 8, and box frame 8 is bolted and cabinet base 1 connection.
Described binding post 7 is made of copper, and the columniform joint 11 comprising a square egative film 10 and be installed on egative film 10, joint 11 front end arranges internal thread, and egative film 10 is arranged on line bank 5.
Be provided with multiple parallel battery case 13 in described box frame 8, in each battery case 13, a Hard Roll lithium battery 3 be installed.
Containing arc protection device 12 in described line bank 5, arc protection device 12 is arranged between two binding posts 7 of this line bank 5.
Corresponding binding post 7 can be connected as required, to realize the series and parallel connections of Hard Roll lithium battery 3.
As required multiple described energy-storage battery case can be connected combination, to realize the energy-storage battery box structure of wing-rooms on either side of a one-story house, four railway carriage or compartments or many railway carriage or compartments form.
Compared with prior art, the invention has the beneficial effects as follows:
1) native system is by the elastic force of spring leaf, and link position does not exist the problem producing contact resistance increase because of vibration, avoids the shortcoming being threaded and easily loosening, completely solves traditional power battery and connect the quality problems caused because of vibration.
2) native system is by the elastic force of spring leaf, and connected mode is very reliable, reduces contact resistance, overcomes the drawback that brace welding cost is high, be not easy to connection, the advantages such as have simple to operate, cost is low, resistance to repeatedly plug.
3) native system adopts distributed schemes, and each memory cell of system can combine by fast free, and realize series connection and parallel function, and can make single railway carriage or compartment or many railway carriage or compartments form, system is conveniently built and dilatation.
4) native system assembling mode and convenient, avoids a lot of complicated bindiny mechanism, so more have superiority in fail safe and quality control.
Accompanying drawing explanation
Fig. 1 is that list van-type energy-storage box structure of the present invention disassembles schematic diagram.
Fig. 2 is elastic spring structural representation of the present invention.
Fig. 3 is connection terminal structure schematic diagram of the present invention.
Fig. 4 is body side wiring card structure enlarged diagram of the present invention.
Fig. 5 is battery case structure schematic diagram of the present invention.
Fig. 6 is list van-type energy-storage box overall structure schematic diagram of the present invention.
Fig. 7 is the present invention two van-type energy-storage box overall structure schematic diagram.
Fig. 8 is the present invention four van-type energy-storage box overall structure schematic diagram.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of pole of the present invention non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast, the some storing sub-units comprising Hard Roll lithium battery 3 comprising box frame 8 and be installed in box frame 8, in each storing sub-units, cabinet base 1 is installed elastic spring 2, the top of Hard Roll lithium battery 3 arranges the line bank 5 being embedded with binding post 7, pole 9 one_to_one corresponding of binding post 7 and Hard Roll lithium battery 3, the bottom that elastic spring 2 acts on Hard Roll lithium battery 3 applies elastic force to it, thus make pole 9 and binding post 7 close contact.Seal cover 6 can be provided with in the upside of casing, avoid energy-storage box to be polluted or damage, ensure Electrical Safety.
Wherein, multiple Hard Roll lithium battery 3 be independently fixed in box frame 8 can be included, elastic spring 2 and Hard Roll lithium battery 3 one_to_one corresponding, parallel distribution on cabinet base 1 in each storing sub-units, cabinet base 1 four limit is provided with through hole, is bolted on bottom box frame 8.Line bank 5 and Hard Roll lithium battery 3 one_to_one corresponding, be installed on box frame 8, and each line bank 5 installs two binding posts 7.After having assembled, elastic spring 2 can provide the reaction force of 30-40N when being subject to Hard Roll lithium battery 3 and extruding, and ensures the compactness connected.Utilize elastic spring 2 can avoid causing loosening between pole 9 and binding post 7 due to vibration, reduce contact resistance.
As shown in Figure 2, be the enlarged diagram of elastic spring 2, elastic spring 2 is parallel to be fixed on energy-storage box base 1, and keep a determining deviation, elastic spring 2 compressive deformation, pole 9 and the binding post 7 of Hard Roll lithium battery 3, on Hard Roll lithium battery 3, compress by resilient force.
As shown in Figure 3, be the structural representation of binding post 7, binding post 7 is made of copper, the columniform joint 11 comprising a square egative film 10 and be installed on egative film 10, joint 11 front end arranges internal thread, and egative film 10 is arranged on line bank 5, the corresponding pole 9 of each binding post 7.
As shown in Figure 4, be equipped with wiring card 4 in the outside of casing, for the input-output line of self-contained battery case, avoid because circuit loosens the safety problem caused.
As shown in Figure 5, be provided with multiple parallel battery case 13 in the box frame 8 of energy-storage battery case, install a Hard Roll lithium battery 3 in each battery case 13, Hard Roll lithium battery 3 is just in time stuck in battery case 13, with fixing Hard Roll lithium cells.Battery case 13 can ensure each storing sub-units independence installing/dismounting.
Line bank 5 is made of plastics, and inside is embedded with binding post 7, each binding post can be coupled together, realize the series and parallel between each battery unit by wire or metal connecting sheet.Between two binding posts 7 of same line bank 5, be also provided with arc protection device 12, ensure discharge and recharge safety.
According to demand, by connecting the binding post 7 of each storing sub-units, series connection or the parallel connection of storing sub-units can be realized.Each storing sub-units adopts the three-dimensional layout of distribution, and energy-storage battery case can make single railway carriage or compartment form as shown in Figure 6, two railway carriage or compartments form as shown in Figure 7, four railway carriage or compartment forms as shown in Figure 8 and many railway carriage or compartments form, to realize dilatation.

Claims (8)

1. a pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast, comprise box frame (8) and be installed on the some storing sub-units comprising Hard Roll lithium battery (3) in box frame (8), it is characterized in that, in described each storing sub-units, cabinet base (1) is installed elastic spring (2), the top of Hard Roll lithium battery (3) arranges the line bank (5) being embedded with binding post (7), pole (9) one_to_one corresponding of binding post (7) and Hard Roll lithium battery (3), the bottom that elastic spring (2) acts on Hard Roll lithium battery (3) applies elastic force to it, thus make pole (9) and binding post (7) close contact.
2. pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast according to claim 1, it is characterized in that, multiple Hard Roll lithium battery (3) be independently fixed in box frame (8) is included in described each storing sub-units, described elastic spring (2) and Hard Roll lithium battery (3) one_to_one corresponding, in the upper parallel distribution of cabinet base (1), described line bank (5) and Hard Roll lithium battery (3) one_to_one corresponding, the upper installation two of each line bank (5).
3. pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast according to claim 2, it is characterized in that, described line bank (5) is installed on box frame (8), and box frame (8) is bolted and cabinet base (1) connection.
4. pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast according to claim 2, it is characterized in that, described binding post (7) is made of copper, the columniform joint (11) comprising a square egative film (10) and be installed on egative film (10), joint (11) front end arranges internal thread, and egative film (10) is arranged on line bank (5).
5. pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast according to claim 2, it is characterized in that, be provided with multiple parallel battery case (13) in described box frame (8), in each battery case (13), a Hard Roll lithium battery (3) be installed.
6. pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast according to claim 2, it is characterized in that, containing arc protection device (12) in described line bank (5), arc protection device (12) is arranged between two binding posts (7) of this line bank (5).
7. pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast according to claim 2, it is characterized in that, connects binding post (7) as required, to realize the series and parallel connections of Hard Roll lithium battery (3).
8. pole non-threaded connection Hard Roll lithium battery is exempted from brace and is connected energy-storage battery case fast according to claim 2, it is characterized in that, multiple described energy-storage battery case is connected combination, to realize the energy-storage battery box structure of wing-rooms on either side of a one-story house, four railway carriage or compartments or many railway carriage or compartments form.
CN201510413065.3A 2015-07-14 2015-07-14 A kind of non-threaded connection Hard Roll lithium battery of pole exempts from connection sheet and quickly connects energy-storage battery case Active CN104979509B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2734540Y (en) * 2004-08-04 2005-10-19 北京有色金属研究总院 Battery case
US20100055556A1 (en) * 2008-08-28 2010-03-04 John Eric Meschter Monoblock lithium ion battery
CN101752598A (en) * 2008-12-05 2010-06-23 财团法人工业技术研究院 Fast removable battery structure
CN201829548U (en) * 2010-08-25 2011-05-11 浙江中科正方电子技术有限公司 Battery box for the vehicle
CN201975440U (en) * 2011-02-10 2011-09-14 上海内燃机研究所 Vehicle-mounted battery box
CN103606639A (en) * 2013-11-28 2014-02-26 山东精工电子科技有限公司 Lithium ion battery pack capable of converting series-parallel connection
CN204012913U (en) * 2014-08-22 2014-12-10 山东鲁能智能技术有限公司 A kind of battery dc case based on the preset storehouse of transformer station
CN204407391U (en) * 2015-02-13 2015-06-17 中国华能集团清洁能源技术研究院有限公司 A kind of constant temperature matrix form energy-storage box
CN204792991U (en) * 2015-07-14 2015-11-18 中国华能集团清洁能源技术研究院有限公司 High -speed joint energy storage battery case

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2734540Y (en) * 2004-08-04 2005-10-19 北京有色金属研究总院 Battery case
US20100055556A1 (en) * 2008-08-28 2010-03-04 John Eric Meschter Monoblock lithium ion battery
CN101752598A (en) * 2008-12-05 2010-06-23 财团法人工业技术研究院 Fast removable battery structure
CN201829548U (en) * 2010-08-25 2011-05-11 浙江中科正方电子技术有限公司 Battery box for the vehicle
CN201975440U (en) * 2011-02-10 2011-09-14 上海内燃机研究所 Vehicle-mounted battery box
CN103606639A (en) * 2013-11-28 2014-02-26 山东精工电子科技有限公司 Lithium ion battery pack capable of converting series-parallel connection
CN204012913U (en) * 2014-08-22 2014-12-10 山东鲁能智能技术有限公司 A kind of battery dc case based on the preset storehouse of transformer station
CN204407391U (en) * 2015-02-13 2015-06-17 中国华能集团清洁能源技术研究院有限公司 A kind of constant temperature matrix form energy-storage box
CN204792991U (en) * 2015-07-14 2015-11-18 中国华能集团清洁能源技术研究院有限公司 High -speed joint energy storage battery case

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