CN107768566A - A kind of easy-to-mount battery modules - Google Patents
A kind of easy-to-mount battery modules Download PDFInfo
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- CN107768566A CN107768566A CN201710914859.7A CN201710914859A CN107768566A CN 107768566 A CN107768566 A CN 107768566A CN 201710914859 A CN201710914859 A CN 201710914859A CN 107768566 A CN107768566 A CN 107768566A
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- plate
- turnover panel
- glue
- groove
- battery modules
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- 230000007306 turnover Effects 0.000 claims abstract description 96
- 239000003292 glue Substances 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 33
- 210000002421 cell wall Anatomy 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005253 cladding Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 21
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of easy-to-mount battery modules, set the battery core of front end-plate and end plate respectively including front and back end, battery core left and right sides sets left plate and right plate respectively, front end-plate, left plate, end plate, right plate are sequentially connected with, the anterior left and right side of front end-plate correspondingly sets installation glue groove, the rear portion left and right side of end plate correspondingly sets installation glue groove, and the front and back ends of left plate set left turnover panel respectively, and the front and back ends of right plate set right turnover panel respectively；The thickness of left turnover panel and right turnover panel is less than the width of installation glue groove；The right turnover panel outer cladding glue-line of the left turnover panel and right plate of left plate, the right turnover panel of the left turnover panel and right plate of left plate are bonded with corresponding installation glue groove respectively by glue-line.Dimension precision requirement of the invention to part is low, wide adaptability low to material requirements, it is not necessary to produces frock, it is convenient to check, bonding strength is high, can absorb deformation, and production process will not produce safety problem, it is maintainable good, it is not necessary to which that extras, fund input are small.
Description
Technical field
The invention belongs to for the method or apparatus that direct transformation chemical energy is electric energy, such as the technical field of battery pack,
More particularly to a kind of easy-to-mount battery modules.
Background technology
At present under the support of country and the advantage in market, dynamic lithium battery industry development is very fast, and its application is
It extend to the fields such as electric bus, electric motor car, micro- public transport and energy storage.
Core in dynamic lithium battery is battery core, and in the prior art, the burst mode of square electric cell all compares class
Seemingly, mostly using tower structure, i.e., an outer framework is made using end plate and side plate, by there is the glue of adhesive property between battery core
Band or glue, using as an entirety, simultaneously as connected between battery core by way of bonding, it is firm in order to be bonded,
It is typically necessary and applies certain power on two end plates so that adhesives plays a role.
Under this structure type, end plate and side plate typically using weld, rivet, the mode such as be spirally connected is connected, however,
Inferior position all more or less be present in traditional being connected, including：
1）It is higher to the dimension precision requirement of part；During using laser welding, the size of welding position need to control ±
0.5mm, and a module typically has the battery core of more than 5, even in the relatively good battery core enterprise of size Control, the thickness of battery core
Degree is also required to reservation ± 0.2mm error, and along with the tolerance of the tolerance of side plate and end plate, also positioning tool, last is tired
Product tolerance be far longer than ± 0.5mm, the effect of laser welding practical application is poor, using laser welding when, to battery core size,
The dimension precision requirement of each materials such as end plate size, side plate size is very high, and Material Cost is very big；
2）It is relatively low to material requirements height, adaptability；The principle of laser welding is to melt two soldering parts by high temperature, cooling
After be freezing together, this requires the fusing point of two kinds of materials relatively, even requires same material, and which results in material
Selection exist it is relatively more limit, e.g., metal and plastics just can not laser welding, and some light-weighted materials can not use；
3）Requirement height to producing frock；Laser welding requires that the gap between two parts is less than certain value, then is processing
During just need clamping tool, which results in clamping tool also exigent precision, high-precision frock price is very
It is high；
4）Welding inspection is highly difficult；In laser beam welding, once material has impurity, surface to have spot etc. all to cause welding different
Often, there is situations such as rosin joint, burn-through, and this abnormal welding is difficult to be examined out；
5）Bonding strength deficiency；Because battery core can produce expansion in cyclic process, the expansion of multiple battery core accumulations, will finally turn
Turn to the performance of power；Battery core expansive force is general, and all in more than 10000N, fixing bolt or riveting position are limited, be spirally connected or
Riveting is difficult to meet the requirement of expansive force, when the expansive force of battery core is more than bonding strength, is formed by end plate and side plate outer
Framework will fail, and whole module will also fail；
6）The ability for absorbing deformation is poor；Whether weld or be spirally connected, rivet, do not allow the situation for displacement occur, work as electricity
The expansive force of core occurs, and when causing size increase, existing connected mode absorbs the poor ability of deformation；
7）Safety is poor in production process；Easily occur metallic particles splashing during Surface Welding at High Temperature, once there is metallic particles
It is splashed between battery core, insulation will be caused pressure-resistant bad, whole module has the hidden danger scrapped；
8）It is maintainable poor；Welding is attached by melting two kinds of materials, as need to reprocess can only be it is destructive, can
Maintainability is very poor；
9）To equipment requirement compared with it is high, fund input is big；Existing welding manner, either laser welding, or CMT welding, all
Need special welding equipment, and the value of these welding equipments is all higher, it is necessary to which very big input, cost are too high.
The content of the invention
Present invention solves the technical problem that being, in the prior art, the end plate and side plate of battery modules are typically using welding, riveting
The mode such as connect, be spirally connected to be connected, caused by, to material requirements high, adaptability higher to the dimension precision requirement of part compared with
Requirement low, to producing frock is high, welding inspection is highly difficult, bonding strength is insufficient, the ability of absorption deformation is poor, production process
The problem of middle safety is poor, maintainable poor, higher to equipment requirement, fund input is big, and then provide a kind of optimization structure
Easy-to-mount battery modules.
The technical solution adopted in the present invention is a kind of easy-to-mount battery modules, including battery core, the battery core front end
Front end-plate and end plate are respectively equipped with rear end, the left side and right side of the battery core are respectively equipped with left plate and right plate, described
Front end-plate, left plate, end plate, right plate are sequentially connected with, and the front left of the front end-plate and anterior right side are correspondingly provided with peace
Glue groove is filled, the rear left and rear right of the end plate are correspondingly provided with installation glue groove, the front-end and back-end of the left plate
Left turnover panel is respectively equipped with, the front-end and back-end of the right plate are respectively equipped with right turnover panel；The thickness of the left turnover panel and right turnover panel
Less than the width of installation glue groove；The right turnover panel of the left turnover panel and right plate of the left plate is coated with glue-line, the left plate
Left turnover panel be bonded respectively with the installation glue groove of the front left of corresponding front end-plate and the rear left of end plate by glue-line,
The right turnover panel of the right plate by glue-line respectively with the anterior right side of corresponding front end-plate and the peace of the rear right of end plate
Fill glue groove fitting.
Preferably, the installation glue groove is dovetail groove, and the bottom land of the dovetail groove is described perpendicular to front end-plate or end plate
The cell wall of dovetail groove and the angle of bottom land are α, 45 ° of ＜ α≤90 °.
Preferably, the angle between the left turnover panel and left plate is β, 45 ° of 135 ° of ＜ β ＜.
Preferably, the angle between the right turnover panel and right plate is γ, 45 ° of 135 ° of ＜ γ ＜.
Preferably, the width of the notch of the dovetail groove is more than the thickness of left turnover panel and right turnover panel.
Preferably, the length on the preceding surface of the front end-plate is more than the front left of front end-plate and the dovetail groove on anterior right side
Rear groove wall top between length.
Preferably, the length on the rear surface of the end plate is more than the rear left of end plate and the dovetail groove of rear right
Preceding groove wall top between length.
Preferably, the bottom of the left plate and right plate is respectively equipped with bottom turnover panel, the bottom of the left plate and right plate
The bottom of the turnover panel sequentially bottom with front end-plate, battery core bottom and end plate is bonded.
Preferably, the middle part of the front end-plate and end plate includes some reinforcements.
The invention provides it is a kind of optimize structure easy-to-mount battery modules, by front end-plate front left and
Anterior right side, the rear left of end plate and rear right correspondingly open up installation glue groove, and in the front-end and back-end of left plate point
Left turnover panel is not set, the front-end and back-end of right plate set right turnover panel respectively, the thickness of left turnover panel and right turnover panel is less than installation glue
The width of groove, then left turnover panel and right turnover panel can the more advantageously adjustment position in glue groove is installed, after, in left turnover panel and
Right turnover panel outer cladding glue-line, pass through working in coordination between glue-line and installation glue groove, you can to complete front end-plate, left plate, rear end
Plate, right plate are sequentially connected with.
Beneficial effects of the present invention comprise at least：
1）It is low to the dimension precision requirement of part：Width due to installing glue groove is more than the thickness of left turnover panel and right turnover panel, then has
The problem of enough dimensional spaces are to make up part tolerance；
2）, wide adaptability low to material requirements, the light-weight design of module can be achieved；Using glue-line and corresponding installation glue groove,
Two parts can be bonded together with repetition, it is only necessary to which the molecular force of material surface is big, to fusing point without too
It is require, it is possible to achieve the connection of the multiple material such as metal and plastic cement, plastic cement and plastic cement more；
3）Frock need not be produced；Part self poisoning can be used, it is not necessary to the frock clamp such as position, install；
4）It is convenient to check；Whether the situation it is determined that being bonded, efficiency are filled up by the drying time and installation glue groove of glue-line
Height, labor intensive are few；
5）Bonding strength is high；The adhesive strength of glue-line is big and is coated on outside left turnover panel and right turnover panel, i.e., pair in the presence of bonding relation
It is 3 to answer face, and bond area is big, and then bonding strength is high；
6）Absorbable deformation；Width of rebate due to installing glue groove is more than the thickness of left turnover panel and right turnover panel, installs phase in glue groove
Glue-line is filled for the space of left turnover panel and right turnover panel, generally, glue-line has ductility and compressibility, when battery core expands
When power reaches certain, it can be deformed by glue-line and absorb expansion；
7）Production process will not produce safety problem；Because glue-line is paste, thus will not be produced during production and processing
Raw splashing particle, and glue-line is also insulating materials, will not also cause safety problem even if the situation for excessive glue occur；
8）It is maintainable good；In the application of reality, glue-line can soften at a certain temperature, thus technical staff can lead to
The heating to glue-line is crossed to realize zero destructive demolition and maintenance；
9）Do not need extras, fund input small；Glue-line can realize natural coagulation in itself, it is not necessary to additionally add special set
It is standby.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial enlargement structural representation of A in Fig. 1；
Fig. 3 is the structural representation that midsole turnover panel of the present invention coordinates with battery core；
Fig. 4 is the structural representation of the right plate of the present invention；
Fig. 5 is the vertical view figure structure schematic representation of the front end-plate of the present invention, wherein, α is the cell wall of dovetail groove and the angle of bottom land；
Fig. 6 is that cell wall and the bottom land in the present invention towards the side of end plate be in 90 °, the structure of dovetail groove of the opposite side less than 90 °
Schematic diagram；
Fig. 7 is that cell wall and the bottom land of the side backwards to end plate in the present invention be in 90 °, the structure of dovetail groove of the opposite side less than 90 °
Schematic diagram；
Fig. 8 is the structural representation for the dovetail groove that the angle in the present invention between both sides cell wall and bottom land is both less than 90 °；
Fig. 9 is the vertical view figure structure schematic representation of the present invention；
Figure 10 is the partial enlargement structural representation of B in Fig. 9, wherein, the angle of left turnover panel and left plate is equal to 90 °, and β turns over for a left side
Angle between plate and left plate；
Figure 11 is that the angle of left turnover panel and left plate in the present invention is less than 90 ° of partial structural diagram；
Figure 12 is that the angle of left turnover panel and left plate in the present invention is more than 90 ° of partial structural diagram.
Embodiment
The present invention is described in further detail with reference to embodiment, but protection scope of the present invention is not limited to
This.
As illustrated, the present invention relates to a kind of easy-to-mount battery modules, including battery core 1, the front end of battery core 1 is with after
End is respectively equipped with front end-plate 2 and end plate 3, and the left side and right side of the battery core 1 are respectively equipped with left plate 4 and right plate 5, described
Front end-plate 2, left plate 4, end plate 3, right plate 5 are sequentially connected with, and the front left of the front end-plate 2 is corresponding with anterior right side to be set
There is installation glue groove 6, the rear left and rear right of the end plate 3, which are correspondingly provided with, installs glue groove 6, before the left plate 4
End and rear end are respectively equipped with left turnover panel 7, and the front-end and back-end of the right plate 5 are respectively equipped with right turnover panel 8；The He of left turnover panel 7
The thickness of right turnover panel 8 is less than the width of installation glue groove 6；The left turnover panel 7 of the left plate 4 and the outer cladding of right turnover panel 8 of right plate 5
Have a glue-line 9, the left turnover panel 7 of the left plate 4 by glue-line 9 respectively with the front left of corresponding front end-plate 2 and end plate 3
The installation glue groove 6 of rear left is bonded, the right turnover panel 8 of the right plate 5 by glue-line 9 respectively with before corresponding front end-plate 2
The installation glue groove 6 of rear right on the right side of portion with end plate 3 is bonded.
In the present invention, battery modules mainly include battery core 1 and the installed part being arranged on outside battery core 1, and installed part includes battery core 1
Front end-plate 2 and end plate 3 that front-end and back-end are set respectively and left plate 4 and right plate 5 that left side and right side are set respectively, it is preceding
End plate 2, left plate 4, end plate 4, right plate 5 are sequentially connected with, and are crowded around in the outside of battery core 1.
In the present invention, by the right side of the front left of front end-plate 2 and front portion, the rear left of end plate 3 and rear portion it is right
Side correspondingly opens up installation glue groove 6, and set respectively in the front-end and back-end of left plate 4 left turnover panel 7, right plate 5 front end and after
End sets right turnover panel 8 respectively, because the thickness of left turnover panel 7 and right turnover panel 8 is less than the width of installation glue groove 6, then left turnover panel 7 and the right side
Turnover panel 8 can the more advantageously adjustment position in glue groove 6 is installed, after, in left turnover panel 7 and the outer cladding glue-line of right turnover panel 8
9, pass through working in coordination between glue-line 9 and installation glue groove 6, you can to complete front end-plate 2, left plate 4, end plate 3, right plate 5
Be sequentially connected with.
In the present invention, the small 1mm of width of the thickness ratio of left turnover panel 7 and right turnover panel 8 installation glue groove 6 and more than.Ordinary circumstance
Under be arranged to 1mm ~ 1.5mm.
The present invention includes the front end-plate 2 and end plate 3 of the improved structure, left plate 4 of improved structure and right plate 5, high-strength
The glue-line 9 of degree, modern high strength structural adhesion is arranged in pairs or groups by traditional joinery and its construction to realize front end-plate 2, left plate 4, rear end
Plate 3, right plate 5 are sequentially connected with.
The installation glue groove 6 is dovetail groove, and the bottom land 10 of the dovetail groove is perpendicular to front end-plate 2 or end plate 3, the swallow
The cell wall 11 of stern notch and the angle of bottom land 10 are α, 45 ° of ＜ α≤90 °.
Angle between the left turnover panel 7 and left plate 4 is β, 45 ° of 135 ° of ＜ β ＜.
Angle between the right turnover panel 8 and right plate 5 is γ, 45 ° of 135 ° of ＜ γ ＜.
The width of the notch 12 of the dovetail groove is more than the thickness of left turnover panel 7 and right turnover panel 8.
After the length on the preceding surface of the front end-plate 2 is more than the front left of front end-plate 2 and the dovetail groove on anterior right side
Length between the top of cell wall 11.
Before the length on the rear surface of the end plate 3 is more than the rear left of end plate 3 and the dovetail groove of rear right
Length between the top of cell wall 11.
In the present invention, for the stability of connection being further ensured that between end plate and side plate and dismantled and assembled property, it will install
Glue groove 6 is arranged to dovetail groove, the bottom land 10 of dovetail groove perpendicular to front end-plate 2 or end plate 3, i.e., the bottom land 10 of dovetail groove relative to
It is parallel for side plate, ensure that glue-line 9 is smooth in injection process, while ensure that glue-line 9 has enough intensity.
In the present invention, the cell wall 11 of dovetail groove and the angle of bottom land 10 are α, 45 ° of ＜ α≤90 °, dovetail groove generally one
Be open structure small, that inner face is big, is that the width of the notch 12 of dovetail groove is more than left turnover panel 7 and the right side and turned in the operation of reality
The thickness of plate 8.
In the present invention, generally, α can be set to 85 °.
In the present invention, the both sides cell wall 11 of dovetail groove is different from the angle between bottom land 10, can influence battery modules absorption
The ability and bonding strength of deformation.
In the present invention, in practical operation, the angle between the both sides cell wall 11 and bottom land 10 of dovetail groove can include：（1）
The cell wall 11 of the side towards end plate of dovetail groove and bottom land 10 are in 90 °, opposite side is less than 90 °, and the dovetail groove of this structure can
To limit the deformation size of battery modules profile；（2）Cell wall 11 and the bottom land 10 backwards to the side of end plate of dovetail groove be in 90 °,
Opposite side is less than 90 °, and the dovetail groove bonding strength of this structure is relatively weak, is easy to destroy；（3）The both sides cell wall 11 of dovetail groove
Angle between bottom land 10 is both less than 90 °, and the deformability and bonding strength of the dovetail groove of this structure are all better than first two.
In the present invention, accordingly, left turnover panel 7 and right turnover panel 8 also include being less than with the angle of left plate 4 and right plate 5
90 °, equal to 90 ° and more than 90 °, generally, using less than 135 ° and more than 45 ° angle set.
In the present invention, generally, β and γ angles are equal.
In the present invention, in the application of reality, according to the species and performance of battery core 1, matched somebody with somebody from different oat tail groove structures
Close the combination of the side plate and turnover panel of different angle.For example, Three-Yuan Energy type battery core 1 due to expansive force and dilation dimension compared with
Greatly, it is necessary to which bigger absorbs deformability and bigger bonding strength, the both sides cell wall 11 of dovetail groove is typically chosen in selection
Angle between bottom land 10 is both less than 90 °, and left turnover panel 7 and right turnover panel 8 and the angle of left plate 4 and right plate 5 be less than 90 ° or
Combination equal to 90 °；Separately there are some occasions to wish after battery core 1 expands, it is impossible to damage battery core 1, that is, there are the feelings of bonding strength
, it is necessary to be easier to come off under condition, selection the（2）The structure of kind dovetail groove is more appropriate.
In the present invention, the glue-line 9 for having coated left turnover panel 7 and right turnover panel 8 is filled in dovetail groove, bonding force ＞ 10MPa, is treated
After glue-line 9 is molded, i.e., it can form a kind of structure for the bright falcon that is open.For example, because the adhesive strength of glue-line 9 is more than 10MPa,
And the area being bonded is three faces, and bond area is big, what is showed is exactly that bonding strength is high, it is assumed that the depth of dovetail groove is
5mm, side plate are highly 190mm, thickness 1mm, then bonding force F=（5*190*2+190*1）*10=20900N.
In the present invention, the dovetail groove of side plate and end plate snapping, such as need to damage, the tension more than material is needed on active force
Intensity is possible to, and the adhesive strength of glue-line 9 is greater than 10MPa, so when selecting the material of end plate and side plate, material
Tensile strength need adhesive strength more than glue-line 9（Glue-line 9 first fails）, from this view point, conventional metal material,
Engineering plastics etc. can meet to require.
In the present invention, glue-line 9 can select acrylic material or epoxy-like materials, it is necessary to which adhesive strength is more than
10MPa, and have certain soft and compressibility.
In the present invention, the length on the preceding surface of front end-plate 2 is more than the front left of front end-plate 2 and the dovetail groove on anterior right side
The top of rear cell wall 11 between length, the length on the rear surface of end plate 3 is more than the rear left and rear right of end plate 3
Length between the top of preceding cell wall 11 of dovetail groove, refers to that the overhead height of dovetail groove is inconsistent, and the cell wall 11 of outboard end will be longer than
The cell wall 11 of medial extremity, this aspect calculate the thickness of itself of left plate 4 and right plate 5, the He of left plate 4 of being second more convenient for
The installation and fixation of right plate 5.Generally, the cell wall 11 of the outboard end of dovetail groove than medial extremity 11 long 1.2mm of cell wall,
Depending on specifically should be with the actual size of battery modules.
The bottom of the left plate 4 and right plate 5 is respectively equipped with bottom turnover panel 13, and the bottom of the left plate 4 and right plate 5 is turned over
The bottom of the plate 13 sequentially bottom with front end-plate 2, the bottom of battery core 1 and end plate 3 is bonded.
In the present invention, the bottom of left plate 4 and right plate 5 sets bottom turnover panel 13 respectively, when locking module, bottom turnover panel 13
Sequentially the bottom of the bottom with front end-plate 2, the bottom of battery core 1 and end plate 3 is bonded, and side is pushed down by front end-plate 2 and end plate 3
Plate, equipotential link is realized, installation facilitates, and precision is higher.
The middle part of the front end-plate 2 and end plate 3 includes some reinforcements 14.
In the present invention, in order to ensure the support effect of front end-plate 2 and end plate 3, at the middle part of front end-plate 2 and end plate 3
Reinforcement 14 is set, ensures the intensity of front end-plate 2 and end plate 3 when battery core 1 expands.
The present invention solves in the prior art, the end plate and side plate of battery modules typically using weld, rivet, the side such as be spirally connected
Formula is connected, caused by it is higher to the dimension precision requirement of part, high to material requirements, adaptability is relatively low, to producing work
The requirement of dress is high, welding inspection is highly difficult, bonding strength is insufficient, absorbs deformation ability is poor, in production process safety it is poor,
The problem of maintainable poor, higher to equipment requirement, fund input is big, by the front left of front end-plate 2 and it is anterior on the right side of,
The rear left and rear right of end plate 3 correspondingly open up installation glue groove 6, and are set respectively in the front-end and back-end of left plate 4
Left turnover panel 7, the front-end and back-end of right plate 5 set right turnover panel 8 respectively, and the thickness of left turnover panel 7 and right turnover panel 8 is less than installation glue groove
6 width, then left turnover panel 7 and right turnover panel 8 can the more advantageously adjustment position in glue groove 6 is installed, after, in left turnover panel
7 and the outer cladding glue-line 9 of right turnover panel 8, pass through working in coordination between glue-line 9 and installation glue groove 6, you can to complete front end-plate 2, left side
Plate 4, end plate 3, right plate 5 are sequentially connected with.
The present invention is low to the dimension precision requirement of part, wide adaptability low to material requirements, the lightweight of module can be achieved
Design, it is not necessary to frock is produced, it is convenient to check, bonding strength is high, can absorb deformation, and production process will not produce safety problem,
It is maintainable good, it is not necessary to which that extras, fund input are small.
Claims (9)
1. a kind of easy-to-mount battery modules, including battery core, the battery core front-end and back-end are respectively equipped with front end-plate and rear end
Plate, the left side and right side of the battery core are respectively equipped with left plate and right plate, the front end-plate, left plate, end plate, right plate
It is sequentially connected with, it is characterised in that：The front left of the front end-plate and anterior right side are correspondingly provided with installation glue groove, the end plate
Rear left and rear right be correspondingly provided with installation glue groove, the front-end and back-end of the left plate are respectively equipped with left turnover panel, institute
The front-end and back-end for stating right plate are respectively equipped with right turnover panel；The thickness of the left turnover panel and right turnover panel is less than the width of installation glue groove
Degree；The right turnover panel of the left turnover panel and right plate of the left plate is coated with glue-line, and the left turnover panel of the left plate passes through glue-line
It is bonded respectively with the installation glue groove of the front left of corresponding front end-plate and the rear left of end plate, the right side of the right plate is turned over
Plate passes through the glue-line installation glue groove fitting with the anterior right side of corresponding front end-plate and the rear right of end plate respectively.
A kind of 2. easy-to-mount battery modules according to claim 1, it is characterised in that：The installation glue groove is dovetail
Groove, for the bottom land of the dovetail groove perpendicular to front end-plate or end plate, the cell wall of the dovetail groove and the angle of bottom land are α, 45 ° of ＜
α≤90°。
A kind of 3. easy-to-mount battery modules according to claim 1, it is characterised in that：The left turnover panel and left plate
Between angle be β, 45 ° of 135 ° of ＜ β ＜.
A kind of 4. easy-to-mount battery modules according to claim 1, it is characterised in that：The right turnover panel and right plate
Between angle be γ, 45 ° of 135 ° of ＜ γ ＜.
A kind of 5. easy-to-mount battery modules according to claim 2, it is characterised in that：The notch of the dovetail groove
Width is more than the thickness of left turnover panel and right turnover panel.
A kind of 6. easy-to-mount battery modules according to claim 2, it is characterised in that：The preceding surface of the front end-plate
Length be more than length between the rear groove wall top of the front left of front end-plate and the dovetail groove on anterior right side.
A kind of 7. easy-to-mount battery modules according to claim 2, it is characterised in that：The rear surface of the end plate
Length be more than end plate rear left and rear right dovetail groove preceding groove wall top between length.
A kind of 8. easy-to-mount battery modules according to claim 1, it is characterised in that：The left plate and right plate
Bottom be respectively equipped with bottom turnover panel, the bottom turnover panel of the left plate and right plate sequentially the bottom with front end-plate, battery core bottom and
The bottom fitting of end plate.
A kind of 9. easy-to-mount battery modules according to claim 1, it is characterised in that：The front end-plate and end plate
Middle part include some reinforcements.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710914859.7A CN107768566B (en) | 2017-09-30 | 2017-09-30 | Battery module convenient to dismouting |
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| CN201710914859.7A CN107768566B (en) | 2017-09-30 | 2017-09-30 | Battery module convenient to dismouting |
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| CN107768566B CN107768566B (en) | 2024-02-13 |
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| CN107768566B (en) | 2024-02-13 |
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