CN207896194U - Battery modules - Google Patents

Battery modules Download PDF

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Publication number
CN207896194U
CN207896194U CN201820362341.7U CN201820362341U CN207896194U CN 207896194 U CN207896194 U CN 207896194U CN 201820362341 U CN201820362341 U CN 201820362341U CN 207896194 U CN207896194 U CN 207896194U
Authority
CN
China
Prior art keywords
fuse
battery
battery modules
output stage
electrically
Prior art date
Application number
CN201820362341.7U
Other languages
Chinese (zh)
Inventor
秦峰
王志
马林
肖信福
王晓帆
Original Assignee
宁德时代新能源科技股份有限公司
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Priority to CN201820362341.7U priority Critical patent/CN207896194U/en
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Publication of CN207896194U publication Critical patent/CN207896194U/en

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Classifications

    • H01M50/10
    • H01M50/572
    • 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 utility model is related to a kind of battery modules, including:Babinet includes the cover board of shell and closing opening setting with opening;Single battery group, is set in shell, and single battery group includes the electrical connector of the multiple single batteries being stacked and the multiple single batteries of electrical connection;Module output stage, is set to cover board;Fuse is set between cover board and single battery group, and module output stage and electrical connector are electrically connected by fuse.The battery modules that the utility model embodiment provides, can avoid single battery because short circuit, overcharge the problems such as occur it is on fire and explosion, simultaneously, since fuse is set to the outside of each single battery of single battery group, the electrolyte inside single battery will not be had an impact in fusing, further ensures the safety of battery modules.

Description

Battery modules

Technical field

The utility model is related to battery technology fields, more particularly to a kind of battery modules.

Background technology

With the extensive use of new-energy automobile, the safety problem of single battery is also increasingly valued by people, right In the battery modules that single battery is formed in groups, single battery is susceptible to short circuit, phenomena such as overcharging, and is arranged if do not taken It applies, on fire and explosion will likely can occur for single battery, and then cause battery modules that the safety problems such as explosion occur.

In order to solve the short circuit of single battery, overcharge and cause its own or battery modules on fire or explosion issues, it will usually Fuse is set inside single battery, and fuse above-mentioned fuse when single battery short circuit occurs, overcharges, to cut off Circuit.Although the problems such as being solved single battery short circuit using this technological means and be overcharged, it still remains security risk, That is, when fuse is arranged inside battery core, fuse can be under the electrolyte vapors environment inside single battery, work as fusing When device fuses, it is possible to can ignite electrolyte and cause single battery on fire and explode, and then cause entire battery modules It explodes, therefore, battery modules in the prior art still remain the hidden danger of explosion.

Utility model content

The utility model embodiment provides a kind of battery modules, can effectively prevent monomer battery from occurring on fire and quick-fried It is fried, and then battery modules can effectively be avoided the safety problems such as to occur exploding.

On the one hand, a kind of battery modules are proposed according to the utility model embodiment, including:Babinet, including there is opening Shell and closing opening setting cover board;Single battery group, is set in shell, and single battery group includes being stacked The electrical connector of multiple single batteries and the multiple single batteries of electrical connection;Module output stage, is set to cover board;Fuse, if It is placed between cover board and single battery group, wherein module output stage is electrically connected with electrical connector by fuse.

According to the one side of the utility model embodiment, fuse includes and module output stage is electrically connected first connect Portion, the second connecting portion being electrically connected with electrical connector and the fuse part between first connecting portion and second connecting portion melt The overflow section in disconnected portion is less than the overflow section of first connecting portion and second connecting portion, and fuse part has gap with single battery group.

According to the one side of the utility model embodiment, the numerical value in gap is 1mm~20mm.

According to the one side of the utility model embodiment, the numerical value in gap is 3mm~8mm.

According to the one side of the utility model embodiment, the numerical value in gap is 5mm.

According to the one side of the utility model embodiment, first connecting portion, second connecting portion and fuse part are plate Shape structure, it is 90 °~180 ° to have angle, angle between first connecting portion and second connecting portion.

According to the one side of the utility model embodiment, further comprise conductive pole column and " L " shape adapter, first connects Socket part is electrically connected by conductive pole column with module output stage, and second connecting portion is electrically connected by adapter with electrical connector.

According to the one side of the utility model embodiment, fuse part is in same plane with first connecting portion, alternatively, molten Disconnected portion is in same plane with second connecting portion.

According to the one side of the utility model embodiment, fuse part is by first connecting portion close to one end of second connecting portion It extends to form, alternatively, fuse part is extended to form by second connecting portion close to one end of first connecting portion;It is provided in fuse part scarce Mouthful.

According to the one side of the utility model embodiment, notch is rectangular channel.

According to the utility model embodiment provide battery modules comprising babinet, single battery group, module output stage and Fuse, single battery group are set in the shell of babinet, and module output stage is set on the cover board of babinet, and fuse is located at lid It is electrically connected between plate and single battery group and with electrical connector and module output stage.When short circuit occurs for single battery or overcharges to ask When topic causes the transient current of battery modules charging and discharging circuit excessive, fuse blows avoid single battery because of short circuit, overcharge On fire and explosion occurs for problem.Simultaneously as fuse is set to the outside of each single battery of single battery group, in fusing Electrolyte inside single battery will not be had an impact and the electrolyte that ignites, further ensure the safety of battery modules.

Description of the drawings

The feature, advantage and technique effect of the utility model exemplary embodiment described below with reference to the accompanying drawings.

Fig. 1 is the decomposition diagram of the battery modules of the utility model embodiment;

Fig. 2 is the structural schematic diagram of the fuse of the utility model one embodiment;

Fig. 3 is the axonometric drawing of the battery modules partial structurtes of the utility model embodiment;

Fig. 4 is the front view of structure shown in Fig. 3;

Fig. 5 is in Fig. 4 along the sectional view in the directions A-A;

Fig. 6 is the structural schematic diagram of the fuse of the utility model another embodiment;

Fig. 7 is the structural schematic diagram of the fuse of the utility model another embodiment.

Wherein:

10- babinets;11- shells;12- is open;13- cover boards;

20- single battery groups;21- single batteries;22- electrical connectors;

30- module output stages;

40- fuses;41- first connecting portions;42- second connecting portions;43- fuse part;44- notches;

50- conductive pole columns;

60- adapters;

A- angles;B- overcurrents direction.

In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not drawn according to actual ratio.

Specific implementation mode

The feature and exemplary embodiment of the various aspects of the utility model is described more fully below.It is retouched in detail in following In stating, it is proposed that many details, in order to provide the comprehensive understanding to the utility model.But for people in the art It will be apparent that the utility model can be implemented in the case of some details in not needing these details for member. Below the description of embodiment is used for the purpose of providing to the more preferable of the utility model by showing the example of the utility model Understanding.In the the accompanying drawings and the following description, at least part of known features and technology are not shown, to avoid to this reality Unnecessary obscure is caused with novel;Also, for clarity, may be exaggerated the size of part-structure.In addition, hereinafter being retouched Feature, the structure or characteristic stated can be in any suitable manner incorporated in one or more embodiments.

The noun of locality of middle appearance described below is direction shown in figure, is not the battery modules to the utility model Concrete structure be defined.In the description of the present invention, it should also be noted that, unless otherwise specific regulation and limit Fixed, term " installation ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one Connect to body;It can be directly connected, can also be indirectly connected.For the ordinary skill in the art, visual specific Situation understands the concrete meaning of above-mentioned term in the present invention.

The utility model in order to better understand, with reference to Fig. 1 to Fig. 7 according to the battery mould of the utility model embodiment Group is described in detail.

Referring to Fig. 1, Fig. 1 shows the decomposition diagram of the battery modules of the utility model embodiment.The utility model Embodiment proposes a kind of battery modules, and battery modules include babinet 10, single battery group 20, module output stage 30 and fuse 40.Babinet 10 includes the cover board 13 of 12 setting of shell 11 and closing opening with opening 12.Single battery group 20 is set to In shell 11, single battery group 20 includes the multiple single batteries 21 being stacked and the electricity for being electrically connected multiple single batteries 21 Connector 22.Module output stage 30 is set to cover board 13, and fuse 40 is set between cover board 13 and single battery group 20, module Output stage 30 is electrically connected with electrical connector 22 by fuse 40.

The battery modules that the utility model embodiment provides, when short circuit occurs for single battery 21 or overcharges problem to lead to battery When the transient current of module charging and discharging circuit is excessive, fuse 40 fuses, and single battery 21 can be avoided because of short circuit, overcharge etc. and to ask On fire and explosion occurs for topic.Simultaneously as fuse 40 is set to the outside of each single battery 21 of single battery group 20, molten Electrolyte inside single battery 21 will not be had an impact when disconnected and the electrolyte that ignites, further ensure the peace of battery modules Entirely.

Specifically, in the present embodiment, the shell 11 and cover board 13 of babinet 10 can be used aluminum alloy material and be made, shell 11 For rectangular frame structure, opening 12 is located at the upper end surface of shell 11, and cover board 13 is platy structure and can be by the side such as welding Formula is tightly connected with shell 11, and will be open 12 closings.Module output stage 30 includes positive output pole and negative output pole, positive output pole And negative output is extremely preferably disposed on surface of the cover board 13 far from battery modules and with electrical connector 22 respectively by one Fuse 40 connects.

In single battery group 20 quantity of included single battery 21 can according to requiring to set, the present embodiment it is multiple Single battery 21 is stacked along the length direction of shell 11, and aluminium connection sheet, copper connection specifically may be used in electrical connector 22 Piece or Copper-Aluminum compound connection sheet, multiple single batteries 21 pass through 22 serial or parallel connection of electrical connector.

Also referring to Fig. 2, Fig. 2 shows the structural schematic diagrams of the fuse 40 of the utility model embodiment.This practicality The fuse 40 of new embodiment preferably includes first connecting portion 41, second connecting portion 42 and positioned at first connecting portion 41 and the Fuse part 43 between two interconnecting pieces 42, first connecting portion 41 are electrically connected with module output stage 30, second connecting portion 42 be electrically connected Fitting 22 is electrically connected.The battery modules that the utility model embodiment provides, single battery group 20 can be realized by fuse 40 With the electrical connection of module output stage 30, charging and discharging circuit is constituted, and then meet the charge-discharge power demand of battery modules.

As an alternative embodiment, the overflow section of fuse part 43 is less than first connecting portion 41 and second connecting portion 42 overflow section, meanwhile, have gap between fuse part 43 and single battery group 20, in other words between be separated with distance.Make monomer When battery 21 causes the transient current of battery modules charging and discharging circuit excessive due to short circuit occurs or overcharges problem, fuse 40 Fuse part 43 fuses in advance.Due to being separated with distance between fuse part 43 and single battery group 20 so that fuse part 43 is when by fusing It forms liquid metals and drops onto the period that the process on single battery 21 has cooling to liquid metals so that liquid metals drips Cool down when dropping down onto on single battery 21, has avoided causing portion because the liquid metals of high temperature is directly dropped on single battery 21 Divide the accidents such as the on fire, explosion of the even battery modules of single battery 21.Described overflow section refers to that 40 each portion of fuse exists in Fig. 2 Cross section on the b of overcurrent direction.

The distance between fuse part 43 and single battery group 20 can be set according to the model of battery modules, consider liquid The energy density of the cooling down time requirement of body metal and battery modules itself requirement, as a kind of optional embodiment party Formula, the gap numerical value between fuse part 43 and single battery group 20 are preferably any number between 1mm~20mm, including 1mm And two end values of 20mm.Based on above-mentioned Consideration, spacing distance is more preferably any number between 3mm~8mm, more Preferably 5mm, can better meet the cooling down requirement of liquid metals, while be influenced on the energy density of battery modules It is smaller.

Show that the axis of the battery modules partial structurtes of the utility model embodiment is surveyed also referring to Fig. 3 to Fig. 5, Fig. 3 Figure, Fig. 4 show that the front view of structure shown in Fig. 3, Fig. 5 are shown in Fig. 4 along the sectional view in the directions A-A.For the ease of with It is electrically connected between electrical connector 22 and module output stage 30, as an alternative embodiment, first connecting portion 41, Second connecting portion 42 and fuse part 43 are platy structure, there is angle a between first connecting portion 41 and second connecting portion 42, folder Angle a is the random angle angle value between 90 °~180 °, including 90 ° and 180 ° of two end values.Since cover board 13 is platy structure, electricity Connector 22 is also platy structure, the two spaced setting in the same direction, in order to ensure will to be located at by fuse 40 Module output stage 30 on cover board 13 and the electrical connector in single battery group 20 22 are electrically connected, and preferably need to melt Disconnected device 40 is fixed.Therefore, as an alternative embodiment, battery modules further comprise conductive pole column 50 and " L " Shape adapter 60, first connecting portion 41 are electrically connected by conductive pole column 50 with module output stage 30, and second connecting portion 42 is by turning Fitting 60 is electrically connected with electrical connector 22.And first connecting portion 41, second connecting portion 42 and fuse part 43 are limited to plate Shape structure is provided with angle a, and angle a is limited between 90 °~180 ° between first connecting portion 41 and second connecting portion 42 Random angle angle value so that first connecting portion 41 can fit closely simultaneously with the one end of conductive pole column 50 towards single battery group 20 It is fixed using welding, bonding etc. so that first connecting portion 41 can be by the structures such as conductive pole column 50 and cover board 13 far from monomer Module output stage 30 on the surface of battery pack 20 is electrically connected, and second connecting portion 42 can pass through " L " shape adapter 60 and electricity Connector 22 is electrically connected, and can ensure the bonding strength with electrical connector 22.

As an alternative embodiment, fuse part 43 is in same plane with first connecting portion 41 so that electrical connection When 21 dilatancy of single battery or battery modules are shaken, fuse part 43 is not easy to be bent and fracture part 22, ensures The service life of fuse 40 avoids fuse 40 from causing to be broken due to non-single battery 21 is short-circuit or overcharges the reason of, and then ensures The service life of battery modules.

Certainly, fuse 40 is not limited to be in same surface with first connecting portion 41, in some optional embodiments, when 43 intensity of fuse part of fuse 40 is enough, and 21 dilatancy of single battery or battery modules can be overcome, which shaking occur, to be caused When it fractures, fuse part 43 can also be in same plane with second connecting portion 42.

As an alternative embodiment, for the ease of the production of fuse 40, the processing cost of fuse 40 is reduced, Fuse part 43 is extended to form by first connecting portion 41 close to one end of second connecting portion 42, i.e., at least first connecting portion 41 and fusing Portion 43 is an integral structure, and is as above given an account of and is continued, because requiring the overflow section of fuse part 43 to connect less than first connecting portion 41 and second The overflow section of socket part 42 makes it fuse in advance prior to other portions of fuse 40.Therefore, in the present embodiment, in fuse part 43 Upper setting notch 44, to meet the small requirement of its overflow section.Described 44 quantity of notch may be used one shown in Fig. 2, The center or paracentral position, the notch 44 is leaned on to serve as reasons that one notch 44 is preferably placed in 43 width direction of fuse part The closing notch 44 that four faces are enclosed, the slot preferably rectangular in shape of notch 44.

Certainly, fuse 40 shown in Fig. 2 is a kind of preferred embodiment, however it is not limited to above-mentioned form, please together Show that the structural schematic diagram of the fuse 40 of another embodiment of the utility model, Fig. 7 are this practicalities refering to Fig. 6, Fig. 7, Fig. 6 The structural schematic diagram of the fuse 40 of another novel embodiment.As shown in fig. 6, the notch 44 in fuse part 43 can also be arranged It it is two, two notches 44 can be intervally arranged on the extending direction of fuse part 43, and the notch 44 of two fuses 40 is The closing notch being enclosed by four faces, 44 slot preferably rectangular in shape of notch.Certainly, notch 44 is not limited to closed square V notch v, as shown in fig. 7, the quantity of notch 44 is similarly two, two notches 44 are opposite in the width direction of fuse part 43 Setting, and each notch 44 is the rectangular notch for having opening 12 by the side that three faces are formed.Certainly, the quantity of notch 44 and Arrangement mode can need to set according to using, as long as disclosure satisfy that the overflow section requirement of fuse part 43.

It is understood that the above various embodiments is by first connecting portion 41 with fuse part 43 close to second connecting portion 42 One end extend to form, certainly, in some optional embodiments, fuse part 43 can also be by second connecting portion 42 close to first One end of interconnecting piece 41 extends to form, i.e., at least second connecting portion 42 is an integral structure with fuse part 43, and in fuse part 43 Upper setting jagged 44, described 44 quantity of notch, shape etc. require unanimously, herein with setting when in first connecting portion 41 It repeats no more.

When implementing, in order to be more convenient for processing, first connecting portion 41, fuse part 43 and second connecting portion 42 can be integrated Formula structure, that is, fuse 40 is preferably integrally formed part.

The battery modules that the utility model embodiment provides as a result, because it includes babinet 10, single battery group 20, module Output stage 30 and fuse 40, single battery group 20 are set in the shell 11 of babinet 10, and module output stage 30 is set to babinet On 10 cover board 13, fuse 40 between cover board 13 and single battery group 20 and with electrical connector 22 and module output stage 30 Electrical connection.Therefore when short circuit occurs for single battery 21 or overcharges problem to lead to the transient current mistake of battery modules charging and discharging circuit When big, fuse 40 fuse, avoid single battery 21 because short circuit, overcharge the problems such as occur it is on fire and explosion.Simultaneously as fusing Device 40 is set to the outside of each single battery 21 of single battery group 20, will not be to the electrolysis inside single battery 21 in fusing Liquid has an impact and the electrolyte that ignites, and further ensures the safety of battery modules, use easy to spread.

Although the present utility model has been described by reference to the preferred embodiments, but in the model for not departing from the utility model In the case of enclosing, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as not depositing In structural conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The utility model It is not limited to specific embodiment disclosed herein, but includes all technical solutions fallen within the scope of the appended claims.

Claims (10)

1. a kind of battery modules, which is characterized in that including:
Babinet includes the cover board of shell and the closing opening setting with opening;
Single battery group is set in the shell, the single battery group include the multiple single batteries being stacked and It is electrically connected the electrical connector of the multiple single battery;
Module output stage is set to the cover board;
Fuse is set between the cover board and the single battery group;
Wherein, the module output stage is electrically connected with the electrical connector by the fuse.
2. battery modules according to claim 1, which is characterized in that the fuse includes and the module output stage is electric The first connecting portion of connection, the second connecting portion being electrically connected with the electrical connector and positioned at the first connecting portion and described The overflow section of fuse part between second connecting portion, the fuse part is less than the first connecting portion and the second connecting portion Overflow section, the fuse part and the single battery group have gap.
3. battery modules according to claim 2, which is characterized in that the numerical value in the gap is 1mm~20mm.
4. battery modules according to claim 3, which is characterized in that the numerical value in the gap is 3mm~8mm.
5. battery modules according to claim 4, which is characterized in that the numerical value in the gap is 5mm.
6. according to the battery modules described in claim 2 to 5 any one, which is characterized in that the first connecting portion, described Two interconnecting pieces and the fuse part are platy structure, have angle between the first connecting portion and the second connecting portion, The angle is 90 °~180 °.
7. battery modules according to claim 6, which is characterized in that further comprise conductive pole column and " L " shape adapter, The first connecting portion is electrically connected by the conductive pole column with the module output stage, and the second connecting portion is turned by described Fitting is electrically connected with the electrical connector.
8. battery modules according to claim 6, which is characterized in that the fuse part is in same with the first connecting portion One plane, alternatively, the fuse part is in same plane with the second connecting portion.
9. battery modules according to claim 6, which is characterized in that the fuse part is by the first connecting portion close to institute The one end for stating second connecting portion extends to form, alternatively, the fuse part by the second connecting portion close to the first connecting portion One end extend to form;It is arranged in the fuse part jagged.
10. battery modules according to claim 9, which is characterized in that the notch is rectangular channel.
CN201820362341.7U 2018-03-16 2018-03-16 Battery modules CN207896194U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820362341.7U CN207896194U (en) 2018-03-16 2018-03-16 Battery modules

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201820362341.7U CN207896194U (en) 2018-03-16 2018-03-16 Battery modules
PCT/CN2018/082252 WO2019174088A1 (en) 2018-03-16 2018-04-09 Battery module

Publications (1)

Publication Number Publication Date
CN207896194U true CN207896194U (en) 2018-09-21

Family

ID=63542336

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820362341.7U CN207896194U (en) 2018-03-16 2018-03-16 Battery modules

Country Status (2)

Country Link
CN (1) CN207896194U (en)
WO (1) WO2019174088A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4267471B2 (en) * 2004-02-03 2009-05-27 矢崎総業株式会社 Fuse unit
US9225002B2 (en) * 2013-10-24 2015-12-29 Samsung Sdi Co., Ltd. Rechargeable battery having fuse unit
CN204651365U (en) * 2015-03-18 2015-09-16 惠州亿纬锂能股份有限公司 A kind of battery pack structure of use safety
CN206878086U (en) * 2017-06-28 2018-01-12 宁德时代新能源科技股份有限公司 Secondary cell and battery modules

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WO2019174088A1 (en) 2019-09-19

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