CN202601786U - Power assembled battery and battery pack thereof - Google Patents

Power assembled battery and battery pack thereof Download PDF

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Publication number
CN202601786U
CN202601786U CN201220173159XU CN201220173159U CN202601786U CN 202601786 U CN202601786 U CN 202601786U CN 201220173159X U CN201220173159X U CN 201220173159XU CN 201220173159 U CN201220173159 U CN 201220173159U CN 202601786 U CN202601786 U CN 202601786U
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CN
China
Prior art keywords
power
connector
battery pack
electrokinetic cell
leading
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Expired - Lifetime
Application number
CN201220173159XU
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Chinese (zh)
Inventor
蒋露霞
鲁志佩
赖庆
朱建华
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201220173159XU priority Critical patent/CN202601786U/en
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Publication of CN202601786U publication Critical patent/CN202601786U/en
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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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Connection Of Batteries Or Terminals (AREA)

Abstract

The utility model provides a power assembled battery which comprises at least two power batteries and a plurality of power connectors, and two adjacent power batteries are connected with each other through one power connector. Each power battery comprises a pole shank, a shell wrapped on the outside of the pole shank, a cover board assembly sealing the shell, and a leading-out terminal, wherein one end of the leading-out terminal is provided with a power connection portion provided with a connector assembly female end, and the end of the each leading-out terminal penetrates through the cover board assembly and is led out to the outside of the shell. Each power connector comprises a main portion and a connector assembly male end, and the connector assembly male ends are fixed at two ends of the main portion, inserted into the connector assembly female ends of the adjacent power batteries, and in electric connection with the connector assembly female ends of the adjacent power batteries. The utility model further comprises provides a power battery pack utilizing the novel power assembled battery. The power assembled battery is flexible in assembly, simple in assembly process, high in efficiency and good in interchangeability among batteries.

Description

A kind of power battery pack and power brick thereof
Technical field
The utility model belongs to the electrokinetic cell field, relates in particular to a kind of new type power battery pack and by its power brick that combines.
Background technology
Day by day exhausted in non-renewable resources such as oil, under the serious all the more background of environmental pollution, all the more big of the expectation that people express new-energy automobile.Electrokinetic cell then is the heart of new-energy automobile; Receive increasing attention and favor; But under the prior art condition, particularly concerning pure electric automobile, the quick charge time of battery is still of a specified duration a lot of than refueling time; The maintenance cost of battery is high simultaneously, and this also is that power vehicle moves towards one of major obstacle of industrialization.Therefore, the industrialized requirement electrokinetic cell of electric automobile has good interchangeability, and the maintainability of lower cost.
Under the current technical conditions, laser welding is adopted in the connection in the power brick between the cell usually, and there is following shortcoming in this connected mode: 1, assembly period long, process cost is high; The heat of input tends to bring very big negative effect to the sealing of cover plate insulating part when 2, welding; 3, when battery need be safeguarded, if carry out the maintenance or the exchange of cell, need to destroy weld seam, be difficult to realize the maintenance and the exchange of single battery, will cause needs to change the entire cell bag like this, greatly increased maintenance cost.
Summary of the invention
The utility model is long for solving the existing power brick assembling cycle, the cost height, the technical problem that interchangeability is bad provides a kind of assembling of electrokinetic cell flexible, assemble flow is simple, efficient is high and battery between good power battery pack and the power brick thereof of interchangeability.
For achieving the above object, the utility model provides a kind of power battery pack, comprises at least two electrokinetic cells and some power connectors, and power connector power connects adjacent two electrokinetic cells; Wherein,
Electrokinetic cell comprises pole piece, is wrapped in the outer housing of pole piece, the cover plate assembly and the leading-out terminal of seal casinghousing; The said cover plate assembly that passes of leading-out terminal leads to the outer end of housing and is provided with the power connecting portion, and the power connecting portion is provided with the female end of connector;
The power connector comprises leading portion and the public end of connector, and the public end of connector is fixed on the two ends of leading portion, and the public end of connector inserts and be electrically connected the female end of connector of adjacent electrokinetic cell.
Further, be provided with self-locking structure in the female end of above-mentioned connector.
Preferably, have connecting hole on the above-mentioned power connecting portion, the female end of connector is arranged in the connecting hole.
Preferably, the public end of above-mentioned connector is provided with buckle structure, and the public end of connector passes through the matching and fixing of buckle structure and self-locking structure in the female end of connector.
Further, above-mentioned leading portion is wrapped with insulating barrier.
Preferably, the two ends of leading portion are riveted or be welded on to the public end of above-mentioned connector.
Preferably, the public end of above-mentioned connector is provided with chamfering away from an end of leading portion.
In addition; The utility model also provides a kind of electrokinetic cell bag; Comprise power battery pack and be wrapped in the outer involucrum of power battery pack, wherein, power battery pack is the power battery pack that the utility model provides; Above-mentioned involucrum is provided with the power fairlead that electrokinetic cell bag power is drawn, and said power fairlead is arranged on over against the female end of the connector that is positioned at electrokinetic cell bag two ends place.
Further, above-mentioned power connector is fixedly connected in the power fairlead on the adjacent two electrokinetic cell bag involucrums.
The power battery pack of using the utility model to provide during assembling, need not be welded or the screw connection, and it is just passable directly the power connector to be inserted adjacent two electrokinetic cells, and assembling is simple, convenient; And, during dismounting, need not destroy weld seam or twist screw, and only need the power connector is extracted, easy to operate; In addition; When the monomer electrokinetic cell maintenance in the power battery pack was perhaps replaced, as long as extract the power connector, the electrokinetic cell that will need repairing or replace then took out; And whole power battery group or electrokinetic cell bag are not caused more other negative effect, just interchangeability is relatively good; And the power connector is reusable, when replacement monomer electrokinetic cell, need not destroy the power connector.
Description of drawings
Fig. 1 is the power battery pack sketch map that two electrokinetic cells are formed;
Fig. 2 is cover plate assembly and leading-out terminal schematic cross-section (the female end of connector is arranged);
Fig. 3 is a power connector sketch map;
Fig. 4 is that the electrokinetic cell package closes sketch map;
Fig. 5 is that electrokinetic cell is sealed dress and externally connected sketch map;
Fig. 6 is that the power connecting portion is arranged on electrokinetic cell leading-out terminal schematic cross-section longitudinally;
Fig. 7 is that the power connecting portion is arranged on electrokinetic cell leading-out terminal power brick sketch map longitudinally;
Fig. 8 is cover plate assembly and leading-out terminal schematic cross-section (the female end of no connector).
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, a kind of power battery pack is made up of two electrokinetic cells and a power connector 3, and power connector 3 power connect these two electrokinetic cells.
The electrokinetic cell of this power battery pack and the concrete structure and the composition of power connector 3 are formed in narration respectively below.
As shown in Figure 1, a kind of electrokinetic cell comprises pole piece (not shown), housing 13, cover plate assembly 11 and leading-out terminal 12.
Like Fig. 1, Fig. 2 and shown in Figure 8, leading-out terminal 12 1 ends are positioned at the seal cavity of cover plate assembly 11 and housing 13 formation, and promptly the inside of housing 13 is electrically connected with the pole piece (not shown); The other end of leading-out terminal 12 passes cover plate assembly 11 and leads to outside the seal cavity that cover plate assembly 11 and housing 13 form, i.e. the outside of housing 13.Leading-out terminal 12 leads to housing 13 outer ends and is provided with power connecting portion 14, and power connecting portion 14 is provided with the female end 15 of connector.
Above-mentioned power connecting portion 14 can be the direct punching of the end outside leading-out terminal 12 leads to housing 13 or handle gained, also can establish parts in addition by the end outside leading-out terminal 12 leads to housing 13, all is feasible.
Cover plate assembly 11 comprises cover plate main body 111 and insulating sealer 112, and insulating sealer 112 covers the inboard of cover plate main body 111.Insulating sealer 112 can be materials such as pottery, glass, is in the same place with cover plate main part 111 and leading-out terminal 12 sintering; Also can be materials such as plastics, rubber, bond together with cover plate main body 111 and leading-out terminal 12 injection mouldings.
It only is a kind of optimal way of giving in the present embodiment that above-mentioned leading-out terminal 12 is drawn for this sheet of sheet deriving structure, and in addition, the leading-out terminal of other shapes also is feasible, such as inner sheet, the outer circle column.
Like Fig. 2 and shown in Figure 8, be provided with the self-locking structure (not shown) in the female end 15 of the connector of this electrokinetic cell, when the public end 32 of connector inserted, the buckle structure 322 of the public end 32 of locking connector is fixed in the female end 15 of connector it, and was as shown in figures 1 and 3.As shown in Figure 2, have connecting hole 141 on the power connecting portion 14, the female end 15 of connector is arranged in the connecting hole 141.Above-mentioned connecting hole 141 can be for being arranged on an end of power connecting portion 14, and do not get through, and the female end 15 of connector is arranged on wherein, and the public end 32 of connector inserts the female end 15 of connector from a fixing end; In addition, connecting hole 141 also can be arranged on the through hole on the power connecting portion 14, and the female end 15 of connector is arranged on wherein, and at this moment, the public end 32 of connector can insert the female end 15 of connector from any end.What adopt in the present embodiment is a kind of mode in back, like this can be so that between electrokinetic cell during connection in series-parallel, and the putting more flexibly of its position, convenient.
In addition, can also directly make elastomeric element to the female end 15 of connector, when the public end 32 of connector inserted, directly chucking accomplished being fixedly connected.
For ease, above-mentioned connecting hole 141 generally is designed to manhole, is beneficial to that the public end 32 of connector and connector are female to be held 15 combine.
Above-mentioned power connecting portion 14 is horizontally installed on leading-out terminal 12 and leads to the end outside the housing 13, and connecting hole 141 also is horizontally installed in the power connecting portion 14.In addition, also have a kind of set-up mode eaily: power connecting portion 14 directly is arranged on leading-out terminal 12 longitudinally and leads to the end outside the housing 13, and the direction of promptly directly drawing along leading-out terminal 12 is provided with power connecting portion 14; In addition, connecting hole 141 also vertically is arranged in the power connecting portion 14, and is as shown in Figure 6.Among the figure, we are defined as the A direction laterally, and vertical with it direction is defined as vertically.
Change power connecting portion 14 and connecting hole 141 direction is set after, other structure comprises that the setting of power fairlead 21 on power connector 3, the power brick involucrum 2 all should adjust accordingly, to cooperate power connecting portion 14 and connecting hole 141, like Fig. 7.These changes are common simple change, repeat no more at this.
As shown in Figure 3, power connector 3 comprises the public end 32 of leading portion 31 and connector, and the public end 32 of connector is fixed on the two ends of leading portion 31, in the female end 15 of connector that the public end 32 of connector inserted and be connected electrically in adjacent electrokinetic cell 1.
The public end 32 of above-mentioned connector is for the ease of inserting preferred cylinder.Other shape is also feasible, and the shape of the female end 15 of connector is consistent with it simultaneously.
As shown in Figure 3, the public end 32 of connector is provided with buckle structure 322, cooperates with the self-locking structure (not shown) that is provided with on the female end 15 of connector, makes public end 32 of connector and the female end 15 of connector be fixed together.
Above-mentioned leading portion is that the conductor material that litzendraht wire, cable, multilayer pressing brace etc. have a certain flexibility is processed, and it is wrapped with a layer insulating (not shown).
Public end 32 riveted joints of connector perhaps are welded on the two ends of leading portion 31.
As shown in Figure 3, the public end 32 of connector is provided with chamfering 321 away from an end of leading portion 31, and the setting of this chamfering 321 helps public end 32 easier being inserted in the female end 15 of connector of connector.
As shown in Figure 5, this electrokinetic cell surrounds hermetically-sealed construction, only reserves power fairlead 21, and all there is insulating protection at all the other positions.This structure during assembling, need not switching, is electrically connected reliably good insulation preformance.
As shown in Figure 4; Electrokinetic cell 1 has been formed a kind of new electrokinetic cell bag jointly with power battery pack and involucrum 2 that power connector 3 is formed; Power connector 3 is electrically connected two adjacent electrokinetic cells 1, and the electrokinetic cell 1 that uses in this electrokinetic cell bag is above-mentioned electrokinetic cell.
As shown in Figure 5, involucrum 2 is provided with the power fairlead 21 that electrokinetic cell bag power is drawn, and this power fairlead 21 is arranged on over against the female end of the connector that is positioned at electrokinetic cell bag two ends 15 places; That is, after the electrokinetic cell 1 in the electrokinetic cell bag interconnected, the female end 15 of the connector of first electrokinetic cell 1 was provided with the power fairlead 21 of electrokinetic cell bag over against Kou Chu; Equally, after the electrokinetic cell 1 in the electrokinetic cell bag interconnected, the female end 15 of the connector of last electrokinetic cell 1 was provided with the power fairlead 21 of electrokinetic cell bag over against Kou Chu.Power connector 3 is fixedly connected in the power fairlead 21 on the adjacent two electrokinetic cell bag involucrums 2.
Above-mentioned power connecting portion 14 is horizontally installed on leading-out terminal 12 and leads to the end outside the housing 13, and connecting hole 141 also is horizontally installed in the power connecting portion 14.In addition, also have a kind of set-up mode eaily: power connecting portion 14 directly is arranged on leading-out terminal 12 longitudinally and leads to the end outside the housing 13, and the direction of promptly directly drawing along leading-out terminal 12 is provided with power connecting portion 14; In addition, connecting hole 141 also vertically is arranged in the power connecting portion 14, and is as shown in Figure 6.Among the figure, we are defined as the A direction vertically, and vertical with it direction is defined as laterally.
Change power connecting portion 14 and connecting hole 141 direction is set after; Other structure; The setting that comprises power fairlead 21 on power connector 3, the power brick involucrum 2 all should adjust accordingly, to cooperate power connecting portion 14 and connecting hole 141, like Fig. 6 and shown in Figure 7.These changes are common simple change, repeat no more at this.
During assembling electrokinetic cell bag, electrokinetic cell 1 is neatly arranged, be placed in the involucrum 2, power connector 3 is inserted in the female end 15 of connector of adjacent two electrokinetic cells 1, to be electrically connected adjacent two electrokinetic cells 1; This process need not be welded or step such as stubborn screw, and succinct convenient, efficiency of assembling is high, realizes automation easily.
In the use of electrokinetic cell bag,, only need power connector 3 is extracted if when having any electrokinetic cell 1 to occur to safeguard unusually in the electrokinetic cell bag; Unusual electrokinetic cell 1 only occurring safeguards; Perhaps allocate new electrokinetic cell 1 again into, need not replace the entire cell bag, can not impact to the entire cell bag or by the battery modules that power brick is formed; Easy to maintenance, reduce maintenance cost simultaneously greatly.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims (9)

1. a power battery pack comprises at least two electrokinetic cells and some power connectors, and said power connector power connects adjacent two electrokinetic cells; It is characterized in that:
Said electrokinetic cell comprises pole piece, is wrapped in the housing outside the said pole piece, the cover plate assembly and the leading-out terminal of the said housing of sealing; The said cover plate assembly that passes of said leading-out terminal leads to the outer end of housing and is provided with the power connecting portion, and said power connecting portion is provided with the female end of connector;
Said power connector comprises leading portion and the public end of connector, and the public end of said connector is fixed on the two ends of said leading portion, and the public end of said connector inserts and be electrically connected the female end of connector of adjacent electrokinetic cell.
2. power battery pack as claimed in claim 1 is characterized in that: be provided with self-locking structure in the female end of said connector.
3. power battery pack as claimed in claim 2 is characterized in that: have connecting hole on the said power connecting portion, the female end of said connector is arranged in the connecting hole.
4. like claim 2 or 3 described power battery pack, the public end of said connector is provided with buckle structure, and the public end of said connector passes through the matching and fixing of buckle structure and self-locking structure in the female end of connector.
5. power battery pack as claimed in claim 4 is characterized in that: said leading portion is wrapped with insulating barrier.
6. power battery pack as claimed in claim 5 is characterized in that: the two ends of leading portion are riveted or be welded on to the public end of said connector.
7. power battery pack as claimed in claim 6 is characterized in that: the public end of said connector is provided with chamfering away from an end of leading portion.
8. electrokinetic cell bag; Comprise power battery pack and be wrapped in the outer involucrum of said power battery pack; It is characterized in that: said power battery pack is the described power battery pack of claim 1; Said involucrum is provided with the power fairlead that electrokinetic cell bag power is drawn, and said power fairlead is arranged on over against the female end of the connector that is positioned at electrokinetic cell bag two ends place.
9. electrokinetic cell bag as claimed in claim 8 is characterized in that: said power connector is fixedly connected in the power fairlead on the adjacent two electrokinetic cell bag involucrums.
CN201220173159XU 2012-04-23 2012-04-23 Power assembled battery and battery pack thereof Expired - Lifetime CN202601786U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220173159XU CN202601786U (en) 2012-04-23 2012-04-23 Power assembled battery and battery pack thereof

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Application Number Priority Date Filing Date Title
CN201220173159XU CN202601786U (en) 2012-04-23 2012-04-23 Power assembled battery and battery pack thereof

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114725590A (en) * 2022-01-28 2022-07-08 东莞市万连实业有限公司 Battery module connecting piece with waterproof function and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114725590A (en) * 2022-01-28 2022-07-08 东莞市万连实业有限公司 Battery module connecting piece with waterproof function and preparation method thereof
CN114725590B (en) * 2022-01-28 2024-02-02 东莞市万连实业有限公司 Battery module connecting piece with waterproof function

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Granted publication date: 20121212