CN205282553U - Battery module - Google Patents

Battery module Download PDF

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Publication number
CN205282553U
CN205282553U CN201521087666.1U CN201521087666U CN205282553U CN 205282553 U CN205282553 U CN 205282553U CN 201521087666 U CN201521087666 U CN 201521087666U CN 205282553 U CN205282553 U CN 205282553U
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CN
China
Prior art keywords
battery core
conducting strip
bonding pad
battery
core group
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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.)
Active
Application number
CN201521087666.1U
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Chinese (zh)
Inventor
高振宇
曾建宏
梅骜
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.)
GAC Motor Co Ltd
GAC Aion New Energy Automobile Co Ltd
Original Assignee
Guangzhou Automobile Group Co Ltd
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Application filed by Guangzhou Automobile Group Co Ltd filed Critical Guangzhou Automobile Group Co Ltd
Priority to CN201521087666.1U priority Critical patent/CN205282553U/en
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    • 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

Abstract

The embodiment of the utility model discloses battery module, battery module includes: the electric core of a plurality of series connections is in proper order organized, is set up in a first conducting strip and a welding pieces above every electric core group, is set up second conducting strip and the 2nd welding pieces below every electric core group, every electric core group is including a plurality of parallel connection's electric core, first conducting strip sets up in a welding pieces's top, set up a plurality of first through -holes on the first conducting strip, a plurality of first through -holes are arranged in placing and fix a position electric core and organize electric core, offer a plurality of first trompils on the welding pieces, set up first current -limiting portion in the first trompil, the second conducting strip sets up in the 2nd welding pieces's below, set up a plurality of second through -holes on the second conducting strip, a plurality of second through -holes are arranged in placing and fix a position electric core and organize electric core, offer a plurality of second trompils on the 2nd welding pieces, set up second current -limiting portion in the second trompil. The utility model discloses a battery module performance is good, the security is high, the cost is also lower.

Description

Battery modules
Technical field
This utility model relates to electronic technology field, particularly to a kind of battery modules.
Background technology
Power battery pack refers to offer mechanokinetic battery apparatus, at present, power battery pack has a wide range of applications in every profession and trade, for instance pure electric automobile, mixed power plant, plug-in hybrid-power automobile, boats and ships, track traffic, solar energy, wind generator system etc. Especially as the development of every profession and trade, the requirement of battery performance is more and more higher.
At present due to the restriction of the technology such as process materials, existing electrokinetic cell off-capacity, electromotive force are inadequate, usually set up into set of cells by several battery cores with complicated series-parallel system, spot welded together is passed through between each battery core, set up into the whole battery modules of battery pack structure again by several set of cells by certain series-parallel system, inside battery bag, there is extremely complex connection in series-parallel relation.
First the battery modules of the existing battery pack structure set up by complicated connection in series-parallel at least there is problems in that, existing battery modules exists chain reaction when single battery core lost efficacy, namely single battery core was likely to cause the domino effect of whole battery modules when losing efficacy, all battery cores in parallel namely can be caused during single battery core short circuit short-circuit in the lump, so can ignite whole battery modules, thus causing that the safety of battery modules is low. Furthermore, there is the problem of current loading discordance during the work of multiple battery core in above-mentioned battery modules, namely other battery cores of indivedual battery core duty factors are always had during the work of above-mentioned battery modules high, under permanent use, the battery core temperature of this part can be more more violent than the variations in temperature of other parts of battery modules, simultaneously because the depth of discharge of these battery cores is always relatively larger, the life-span of these battery cores can deteriorate, and battery modules determines its worst battery core exactly of whole battery bag performance, thus causing the poor-performing of battery modules. It addition, the electrical connection design of above-mentioned battery modules is also very complicated, difficulty of processing is also bigger.
Utility model content
This utility model provides a kind of battery modules, and performance is good, safety is high, cost is relatively low.
Described technical scheme is as follows:
This utility model embodiment provides a kind of battery modules, it include multiple be sequentially connected in series battery core group, be arranged at the first conducting strip above each battery core group and the first bonding pad, be arranged at the second conducting strip below each battery core group and the second bonding pad, each battery core group includes multiple battery core being connected in parallel, described first conducting strip is arranged at the top of described first bonding pad, described first conducting strip is offered multiple first through hole, the plurality of first through hole is used for placing and position battery core in described battery core group, described first bonding pad is offered multiple first perforate, the plurality of first perforate and corresponding the plurality of first through hole one_to_one corresponding, described first perforate arranges the first restriction, described second conducting strip is arranged at the lower section of described second bonding pad, described second conducting strip is offered multiple second through hole, the plurality of second through hole is used for placing and position battery core in described battery core group, described second bonding pad is offered multiple second perforate, the plurality of second perforate and corresponding the plurality of second through hole one_to_one corresponding, described second perforate arranges the second restriction.
The technical scheme that this utility model embodiment provides has the benefit that
By arranging multiple battery core group being sequentially connected in series, and battery core is connected in parallel in each battery core group, and above and below each battery core group, mutually isostructural a piece of conducting strip and bonding pad are respectively set, so that the overall structure of whole battery modules is symmetrical, it is capable of constituting the ability of each battery core current balance of battery modules so that the performance of battery modules is good. And can guarantee that the current welding equipment of use realizes maturation full-automatic welding efficiently by above-mentioned battery core electric connecting mode and the through hole being arranged on conducting strip, production cost is relatively low, the dual electric layer of the conducting strip of its setting and bonding pad composition also ensures that the electrical connection resistance of entirety is relatively low, extend the power bracket of battery modules, reduce overall heating. And on bonding pad because of be provided with the restriction based on security consideration can certain battery core occur short circuit time, disconnect the connection of this battery core and other battery cores, thus protecting battery modules, safety height.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of description, and in order to above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of the battery modules that this utility model embodiment provides;
Fig. 2 is the schematic perspective view of conducting strip;
Fig. 3 is the schematic perspective view of bonding pad;
Fig. 4 is the close-up schematic view of the battery modules of Fig. 1.
Detailed description of the invention
For further setting forth that this utility model is reach technological means and effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its detailed description of the invention of battery modules, structure, feature and the effect that the utility model proposes, describe in detail as after.
Relevant of the present utility model aforementioned and other technology contents, feature and effect, can clearly present in following cooperation describes in detail with reference to graphic preferred embodiment. By the explanation of detailed description of the invention, when can be reach technological means that predetermined purpose takes and effect is able to more deeply and concrete understanding to this utility model, but institute's accompanying drawings is only to provide reference and purposes of discussion, not it is used for this utility model is any limitation as.
Fig. 1 is the structural representation of the battery modules that this utility model embodiment provides. Fig. 2 is the schematic perspective view of conducting strip. Fig. 3 is the schematic perspective view of bonding pad. Fig. 4 is the close-up schematic view of the battery modules of Fig. 1. Refer to Fig. 1 to Fig. 4, described battery modules include multiple be sequentially connected in series battery core group 20, be arranged at the first conducting strip 10 above each battery core group 20 and the first bonding pad 40, be arranged at the second conducting strip 11 and the second bonding pad 41 above each battery core group 20.
3 battery core groups 20 shown in Fig. 1 and 10,3 second conducting strips of corresponding 3 first conducting strips, 40,3 second bonding pads 41 of 11,3 first bonding pads by way of example only, can also include more battery core group 20 and corresponding more conducting strip and more bonding pad as desired in reality.
Preferably, battery modules can also include: holding wire 50 and signal plug connector 30.
Wherein, each battery core group 20 includes multiple battery core 22 being connected in parallel, between adjacent battery core group 20, series connection and alignment are welded between the first bonding pad 40 and the second bonding pad 41, as shown in Figure 1, between 3 battery core groups 20, series connection and alignment are welded on the first bonding pad 40 and the second bonding pad 41, and between the first bonding pad 40 and the second bonding pad 41, so that all battery cores 22 form a centrosymmetric battery core group 20. Battery core 22 in each battery core group 20 can be various types of battery core, for instance lithium-ion electric core, ferrum battery core etc. Battery core 22 includes two electrodes, anelectrode and negative electrode.
Preferably, first conducting strip 10 and the second conducting strip 11 are and have the sheet metal that certain thickness electric conductivity is excellent, first conducting strip 10 is arranged at the top of the first bonding pad 40 and battery core group 20, and weld with the first bonding pad 40 phase, first conducting strip 10 is identical with the structure of the second conducting strip 11, first conducting strip 10 is offered multiple the first through hole 101 arranged in order, spacing between first through hole 101 can be equal to preset value, this preset value can be equal to the optimum of spread length between adjacent battery core 22, namely the spread length between adjacent battery core 22 is equal to preset value, the heat that in battery core group 20, battery core 22 produces then can be better made to distribute, first through hole 101 is additionally operable to the battery core 22 placed and position in battery core group 20, namely each battery core 22 can holding in the first through hole 101 position, additionally, the first through hole 101 on first conducting strip 10 can also provide the space of correspondence for battery core 22 in welding equipment (not shown) welding electric core group 20, namely battery core 22 in battery core group 20 can be welded on the first bonding pad 40 by welding equipment by the first through hole 101.
Preferably, first conducting strip 10 is additionally provided with the first projection 103 being electrical connected with holding wire 50, holding wire 50 is also connected with signal plug connector 30, signal plug connector 30 is connected with outside supervision equipment (not shown), so that the information such as the voltage of battery modules, temperature are transferred to the supervision equipment of outside by signal plug connector 30. Preferably, the first connecting hole 105 is also offered in the one end being positioned at the first conducting strip 10 above the battery core group 20 of battery modules side, the inwall of the first connecting hole 105 is electrically connected the copper bar (not shown) that the electric energy that battery modules produces passes to external equipment, the electric energy that battery modules produces is passed to external equipment by copper bar, to be powered to external equipment. Preferably, the outside of the first conducting strip 10 is additionally provided with and is easy to the first recess 107 and the first perforating 108 that other element passes through.
Second conducting strip 11 is identical with the structure of the first conducting strip 10, second conducting strip 11 is arranged at the lower section of the second bonding pad 41 and battery core group 20, and weld with the second bonding pad 41 phase, second conducting strip 11 is offered multiple the second through hole arranged in order, spacing between second through hole can be equal to preset value, this preset value can be equal to the optimum of spread length between adjacent battery core 22, namely the spread length between adjacent battery core 22 is equal to preset value, the heat that in battery core group 20, battery core 22 produces then can be better made to distribute, second through hole is additionally operable to the battery core 22 placed and position in battery core group 20, namely each battery core 22 can holding at the second lead to the hole site place, additionally, the second through hole on second conducting strip 11 can also provide the space of correspondence for battery core 22 in welding equipment (not shown) welding electric core group 20, namely battery core 22 in battery core group 20 can be welded on the second bonding pad 41 by welding equipment by the second through hole.
Preferably, second conducting strip 11 is additionally provided be electrical connected with holding wire 50 second protruding, holding wire 50 is also connected with signal plug connector 30, signal plug connector 30 is connected with outside supervision equipment (not shown), so that the information such as the voltage of battery modules, temperature are transferred to the supervision equipment of outside by signal plug connector 30. Preferably, the second connecting hole is also offered in the one end being positioned at the second conducting strip 11 below the battery core group 20 of battery modules side, the inwall of the second connecting hole is electrically connected the copper bar (not shown) that the electric energy that battery modules produces passes to external equipment, the electric energy that battery modules produces is passed to external equipment by copper bar, to be powered to external equipment. Preferably, the outside of the second conducting strip 11 is additionally provided with and is easy to the second recess and the second perforating that other element passes through.
First bonding pad 40, second bonding pad 41 is a series of sheet metal with battery core polar cap metal solder affinity, first bonding pad 40, the structure of the second bonding pad 41 is identical, on first bonding pad 40, corresponding first through hole 101 offers multiple the first substantially C-shaped perforate 401, multiple first perforates 401 and corresponding multiple first through hole 101 one_to_one corresponding, first perforate 401 arranges the first restriction 403, described first restriction 403 includes the first extension 405 and a connecting piece 407 being connected with the first extension 405, a connecting piece 407 is offered and is easy to weld the first breach 409 of battery core 22 electrode in the first bonding pad 40 and battery core group 20, so that welding equipment can pass through the first through hole 101 and the first breach 409 by the electrode welding of battery core 22 to the first bonding pad 40.
Second bonding pad 41 is identical with the structure of the first bonding pad 40, on second bonding pad 41, corresponding second through hole offers multiple the second substantially C-shaped perforate, multiple second perforates and corresponding multiple second through hole one_to_one corresponding, second perforate arranges the second restriction, described second restriction includes the second extension and connected with the second extension second and is connected sheet, second connection sheet is offered and is easy to weld the second breach of battery core 22 electrode in the second bonding pad 41 and battery core group 20, so that welding equipment can pass through the second through hole and the second breach by the electrode welding of battery core 22 to the second bonding pad 41.
This utility model embodiment can cause the short circuit in the lump of whole cell parallel body problem when overcoming some the battery core short circuit constituting battery modules. Because being respectively arranged with the first restriction 403 and the second restriction based on security consideration on the bonding pad 40,41 of this utility model embodiment. When some battery core 22 short circuit being connected in parallel in battery core group 20; this battery core all can be discharged by all battery cores 22 in parallel in battery core group 20 by the first restriction 403 and the second restriction 403; moment causes the first restriction 403 and the second restriction place to blow; disconnect the battery core broken down, thus protecting whole battery modules. Additionally, the problem that each battery core 22 electric current of etc. not bringing due to electrical connection resistance when this utility model embodiment also overcomes existing many battery cores connection in series-parallel composition battery modules is inconsistent, in this utility model embodiment, the shape of battery core 22 is centrosymmetric for whole battery modules, and all of electrical fitting such as conducting strip 10,11 and bonding pad 40,41 etc. are all centrosymmetric. And draw the first connecting hole 105 of copper bar and the position of the second connecting hole is also centrosymmetric. Therefore battery modules is centrosymmetric, thus the resistivity in each battery core loop can be made definitely consistent. So, when battery modules works, each battery core 20 that the electric current meeting all equilibrium flowed through is assigned in battery core group 20, reach the purpose that load is fully equalize.
When the above-mentioned battery modules of actual installation, first battery core 22 in each battery core group 20 is arranged and form multiple battery core group 20 after then carrying out parallel connection, multiple battery core groups 20 are distributed on X/Y plane side by side, battery core 22 is axially Z, and according to series connection polarity, adjacent battery core group 20 needs to turn upside down, and adjacent battery core group 20 to be connected, so all battery cores 22 form a centrosymmetric module. Then being alignd with the first bonding pad 40 by the first conducting strip 10 and place and utilize welding equipment to be welded with the first bonding pad 40 phase by the first conducting strip 10 by the first through hole 101, recycling welding equipment passes through the first through hole 101 on the first conducting strip 10 and the first breach 409 on the first bonding pad 40 by the electrode welding of battery core 22 in each battery core group 20 to the first bonding pad 40. Also being alignd with the second bonding pad 41 by the second conducting strip 11 and place and utilize welding equipment to be welded with the second bonding pad 41 phase by the second conducting strip 11 by the second through hole, recycling welding equipment passes through the second through hole on the second conducting strip 11 and the second breach on the second bonding pad 41 by the electrode welding of battery core 22 in each battery core group 20 to the second bonding pad 41. Then it is connected being connected to the holding wire 50 of signal plug connector 30 with the second projection on first projection the 103, second conducting strip 11 on the first conducting strip 10, by first on the first conducting strip 10 and the second conducting strip 11 protruding 103 and the second projection associated electrical signals to be drawn out to the supervision equipment outside battery modules. Finally, copper bar is connected by being arranged in the second connecting hole position of the second conducting strip 11 below the first connecting hole 105 position of the first conducting strip 10 above the battery core group 20 outside battery modules and battery core group 20, form the both positive and negative polarity of whole battery modules, to be drawn by copper bar by the electric energy of battery modules.
In sum, the battery modules that the present embodiment provides, by arranging multiple battery core group 20 being sequentially connected in series, and battery core is connected in parallel in each battery core group 20, and above and below each battery core group 20, mutually isostructural a piece of conducting strip and bonding pad are respectively set, so that the overall structure of whole battery modules is symmetrical, it is possible to realize constituting the ability of each battery core current balance of battery modules so that the performance of battery modules is good. And can guarantee that the current welding equipment of use realizes maturation full-automatic welding efficiently by above-mentioned battery core electric connecting mode and the through hole being arranged on conducting strip, production cost is relatively low, the dual electric layer of the conducting strip of its setting and bonding pad composition also ensures that the electrical connection resistance of entirety is relatively low, extend the power bracket of battery modules, reduce overall heating. And on bonding pad 40,41 because of be provided with the restriction based on security consideration can certain battery core occur short circuit time, disconnect the connection of this battery core and other battery cores, thus protecting battery modules, safety height.
Also by the breach arranged in restriction, it is possible to making welding equipment can pass through through hole and breach by the electrode welding of battery core 22 to the first bonding pad and the second bonding pad, conveniently welding, drastically increases efficiency.
The above, it it is only preferred embodiment of the present utility model, not this utility model is done any pro forma restriction, although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model, any those skilled in the art, without departing within the scope of technical solutions of the utility model, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solutions of the utility model content, any simple modification above example made according to technical spirit of the present utility model, equivalent variations and modification, all still fall within the scope of technical solutions of the utility model.

Claims (7)

1. a battery modules, it is characterised in that it include multiple be sequentially connected in series battery core group, be arranged at the first conducting strip above each battery core group and the first bonding pad, be arranged at the second conducting strip below each battery core group and the second bonding pad, each battery core group includes multiple battery core being connected in parallel, described first conducting strip is arranged at the top of described first bonding pad, described first conducting strip is offered multiple first through hole, the plurality of first through hole is used for placing and position battery core in described battery core group, described first bonding pad is offered multiple first perforate, the plurality of first perforate and corresponding the plurality of first through hole one_to_one corresponding, described first perforate arranges the first restriction, described second conducting strip is arranged at the lower section of described second bonding pad, described second conducting strip is offered multiple second through hole, the plurality of second through hole is used for placing and position battery core in described battery core group, described second bonding pad is offered multiple second perforate, the plurality of second perforate and corresponding the plurality of second through hole one_to_one corresponding, described second perforate arranges the second restriction.
2. battery modules according to claim 1, it is characterized in that, being additionally provided with the first projection being electrical connected with holding wire on described first conducting strip, described holding wire is also connected with signal plug connector, described second conducting strip is additionally provided be electrical connected with described holding wire second protruding.
3. battery modules according to claim 1, it is characterised in that described first conducting strip welds mutually with described first bonding pad, described second conducting strip welds mutually with described second bonding pad.
4. battery modules according to claim 1, it is characterized in that, the first connecting hole is also offered in the one end being positioned at the first conducting strip above the battery core group of described battery modules side, the inwall of described first connecting hole is electrically connected the copper bar that the electric energy that described battery modules produces passes to external equipment, the second connecting hole is also offered in the one end being positioned at the second conducting strip below the battery core group of described battery modules side, and the inwall of described second connecting hole is electrically connected the copper bar that the electric energy that described battery modules produces passes to described external equipment.
5. battery modules according to claim 1, it is characterized in that, described first restriction includes the first extension and a connecting piece being connected with described first extension, and described second restriction includes the second extension and connected with described second extension second and is connected sheet.
6. battery modules according to claim 5, it is characterized in that, described a connecting piece is offered and is easy to weld the first breach of battery core electrode in described first bonding pad and described battery core group, described second connection sheet is offered and is easy to weld the second breach of battery core electrode in described second bonding pad and described battery core group.
7. battery modules according to claim 1, it is characterised in that described first bonding pad, described second bonding pad are the sheet metal with battery core polar cap metal solder affinity.
CN201521087666.1U 2015-12-22 2015-12-22 Battery module Active CN205282553U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521087666.1U CN205282553U (en) 2015-12-22 2015-12-22 Battery module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521087666.1U CN205282553U (en) 2015-12-22 2015-12-22 Battery module

Publications (1)

Publication Number Publication Date
CN205282553U true CN205282553U (en) 2016-06-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105489821A (en) * 2015-12-22 2016-04-13 广州汽车集团股份有限公司 Battery module
CN109244290A (en) * 2018-08-28 2019-01-18 纳恩博(北京)科技有限公司 The fixation device of energy body group

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105489821A (en) * 2015-12-22 2016-04-13 广州汽车集团股份有限公司 Battery module
CN109244290A (en) * 2018-08-28 2019-01-18 纳恩博(北京)科技有限公司 The fixation device of energy body group
WO2020042544A1 (en) * 2018-08-28 2020-03-05 纳恩博(北京)科技有限公司 Fixing device for an energy body group
CN109244290B (en) * 2018-08-28 2024-04-16 纳恩博(北京)科技有限公司 Fixing device for energy body group

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20180703

Address after: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong.

Co-patentee after: Guangzhou GAC Group Motor Co., Ltd.

Patentee after: Guangzhou Automobile Group Co., Ltd.

Address before: 510000 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong.

Patentee before: Guangzhou Automobile Group Co., Ltd.

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

Address after: 23 building, 448-458 Yue Cheng Building, No. 510030 Dongfeng Road, Guangzhou, Guangdong, Yuexiu District

Co-patentee after: Guangzhou Automobile Passenger Car Co., Ltd.

Patentee after: Guangzhou Automobile Group Co., Ltd.

Address before: 23 building, 448-458 Yue Cheng Building, No. 510030 Dongfeng Road, Guangzhou, Guangdong, Yuexiu District

Co-patentee before: Guangzhou GAC Group Motor Co., Ltd.

Patentee before: Guangzhou Automobile Group Co., Ltd.

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

Effective date of registration: 20220225

Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province

Patentee after: GAC AIAN New Energy Vehicle Co.,Ltd.

Patentee after: Guangzhou Automobile Passenger Car Co., Ltd.

Address before: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong.

Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd.

Patentee before: Guangzhou Automobile Passenger Car Co., Ltd.

TR01 Transfer of patent right