CN208208854U - A kind of series-parallel battery modules of 21700 battery cores - Google Patents
A kind of series-parallel battery modules of 21700 battery cores Download PDFInfo
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- CN208208854U CN208208854U CN201820975941.0U CN201820975941U CN208208854U CN 208208854 U CN208208854 U CN 208208854U CN 201820975941 U CN201820975941 U CN 201820975941U CN 208208854 U CN208208854 U CN 208208854U
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- battery modules
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- module casing
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- 238000001816 cooling Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 3
- -1 phenol Aldehyde Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 229920001568 phenolic resin Polymers 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920006380 polyphenylene oxide Polymers 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to battery core batteries in parallel connection mould technical group fields, more particularly to a kind of series-parallel battery modules of 21700 battery cores；Including the 21700 battery modules units that multiple sequences are arranged, and each 21700 battery modules unit is successively installed by installing fixing piece and be integrally fixed；The 21700 battery modules unit includes module casing and multiple 21700 single battery cores, and cylinder manifold in parallel is mounted on the outer wall of the module casing two sides, multiple inserting grooves is laid on the two sides inner wall of the module casing and electrode installs through-hole.The series-parallel battery modules of 21700 battery core disclosed in the utility model, 21700 single battery cores are fixed in the module casing in a manner of inserting clamping, and the corresponding clamping limit of each 21700 battery modules cell position is installed into fixation by bolt and nut connector, it can satisfy high-strength structure required for series-parallel battery modules composed by 21700 big single battery cores of capacity, and structure is simple, manufacturing cost is lower.
Description
Technical field
The utility model relates to battery core batteries in parallel connection mould technical group field, more particularly to a kind of 21700 battery cores are electric in series and parallel
Chi Mo group.
Background technique
Today's society, with the continuous improvement of people's living standards, the demand to automobile is more and more, meanwhile, the energy is asked
Topic is constantly deepened, and oil product is gradually in short supply, and also constantly deepens to the pollution of environment.How effective one kind is manufactured
The new-energy automobile for substituting orthodox car becomes the developing goal of current all Automobile Enterprises.Moreover, country is to new-energy automobile
Industry is vigorously supported, also exactly for this purpose.New-energy automobile is divided into pure electric automobile and hybrid power again
Automobile, however, be it is any, all be unable to do without power battery and for it provide power.And the power battery as the energy, due to it
The characteristic of itself needs to increase by way of serial or parallel connection in use the energy and voltage of battery pack, how will
Battery core meets its string by structure design and demand becomes the general orientation researched and developed for new-energy automobile.
Upper level assembly of the mould group as single battery core is the intermediate structure for connecting single battery core and battery pack, design
The performance that quality significantly affects battery pack plays.Single battery core capacity in lithium ion battery module group type lithium ion battery is big, institute
Structure larger with weight, that composition mould group needs to have higher-strength.Also due to 21700 single battery core capacity are big, it is easy to make
At specific surface area deficiency, better radiating condition is needed.Simultaneously in order to meet energy density demand, groups of fixed structure is lighter
Better.However 21700 current lithium ion battery mould groups are unable to satisfy above-mentioned requirements.
Therefore, to solve the above-mentioned problems, it is badly in need of inventing a kind of new series-parallel battery modules of 21700 battery cores.
Summary of the invention
The purpose of this utility model is that: it provides a kind of 21700 battery cores series-parallel battery modules, solves 21700 battery cores simultaneously
While being coupled structure, it can satisfy mould group and need with higher-strength and good thermal diffusivity.
The utility model provides following proposal:
A kind of series-parallel battery modules of 21700 battery cores, including the 21700 battery modules units that multiple sequences are arranged,
And each 21700 battery modules unit is successively installed by installing fixing piece and be integrally fixed；
The 21700 battery modules unit includes module casing and multiple 21700 single battery cores, each 21700 monomer
Battery core is installed in the module casing, is mounted on the outer wall of the module casing two sides for single by each described 21700
Body battery core carries out cylinder manifold in parallel, is laid on the two sides inner wall of the module casing multiple each described for corresponding inserting
The inserting groove of 21700 single battery cores is additionally provided on the two sidewalls of the module casing for by the electricity of 21700 single battery core
The electrode that pole is pierced by installs through-hole, and each electrode installs through-hole and each inserting groove location corresponds, each confluence
The electrode of multiple confluence pieces and each 21700 single battery core both ends on plate connects one to one respectively；
Each cylinder manifold in each 21700 battery modules unit is sequentially connected in series electrical connection.
Preferably, it is additionally provided on the inner sidewall of the module casing and multiple carries out assembling positioning for the module casing
The central axis of positioning column, the central axis and each inserting groove of each positioning column is set in parallel；The center of the positioning column
Axis is equipped with for battery modules to be carried out with cooling cooling water conservancy diversion through-hole；It is each in each 21700 battery modules unit
The cooling water conservancy diversion lead to the hole site corresponds connection.
Preferably, the quantity of the positioning column is even number, and each positioning column is relative to the module casing in height side
Upward center line is symmetrical set, and in symmetrically arranged a pair positioning column, the top of one of them positioning column
Equipped with inserting notch, the top of another positioning column is equipped with insertion head.
Preferably, multiple thermal vias, the central axis of each thermal vias are additionally provided on the module casing two sidewalls
The centerline axis parallel of line and each inserting groove is arranged, and each thermal vias is in set uniformly at intervals with each inserting groove
It sets；Each thermal vias position in each 21700 battery modules unit corresponds connection.
Preferably, the module casing includes two completely identical in structure half shells, and each half-shell body position is corresponding
Setting is fastened, and passes through locking connector locking；The inserting groove is equipped on the inner sidewall of each half shell, and each described
The notch position of inserting groove is arranged in a one-to-one correspondence；Each half-shell body position in each 21700 battery modules unit is one by one
Corresponding clamping limit.
Preferably, the half shell includes sequentially connected left plate, epipleural, right side plate and lower side panel, the left side
Plate, the epipleural, the right side plate and the lower side panel edge on be equipped with for detaining two half shells
The fastening structure of conjunction.
Preferably, the fastening structure on the left plate is clamp, and the fastening structure on the right side plate is
Card slot, the fastening structure on the epipleural are to fasten plate, and the fastening structure on the lower side panel is to fasten to insert
Slot.
Preferably, the locking connector is arranged on the fastening plate.
Preferably, the half shell is in integrated injection molding.
Preferably, the half shell is made of phenoplasts.
The utility model generate the utility model has the advantages that
1, the series-parallel battery modules of 21700 battery core disclosed in the utility model, including multiple concatenated 21700 battery moulds
Group unit, the successively corresponding clamping limit in position from left to right of each 21700 battery modules unit, and connected by bolt and nut
Part successively installs fixation from left to right；The 21700 battery modules unit includes module casing and multiple 21700 single battery cores,
Each 21700 single battery core is installed in the module casing, is mounted on and is used on the outer wall of the module casing two sides
Each 21700 single battery core is subjected to cylinder manifold in parallel, is laid with multiple be used on the two sides inner wall of the module casing
The corresponding inserting groove for inserting each 21700 single battery core is additionally provided on the two sidewalls of the module casing for will be described
The electrode that the electrode of 21700 single battery cores is pierced by installs through-hole, and each electrode installs through-hole and each inserting groove location one
One is corresponding, and the electrode of multiple confluence pieces and each 21700 single battery core both ends on each cylinder manifold corresponds respectively
Connection；Each cylinder manifold in each 21700 battery modules unit is sequentially connected in series；It is multiple by being arranged in module casing
For inserting the inserting groove of 21700 single battery core, 21700 single battery cores are fixed on the mould in a manner of inserting clamping
In group shell, and the corresponding clamping limit of each 21700 battery modules cell position is installed admittedly by bolt and nut connector
It is fixed, it can satisfy high-strength structure required for series-parallel battery modules composed by 21700 big single battery cores of capacity, and tie
Structure is simple, manufacturing cost is lower；
2, multiple positioning that assembling positioning is carried out for the module casing are additionally provided on the inner sidewall of the module casing
The central axis of column, the central axis and each inserting groove of each positioning column is set in parallel；The central axis of the positioning column
It is equipped with for battery modules to be carried out with cooling cooling water conservancy diversion through-hole；It, can be cold with outside by the way that cooling water conservancy diversion through-hole is arranged
But system is connected to, and increases the refrigerating function of battery modules；And the cooling water conservancy diversion through-hole of multiple battery modules can assemble
At self-contained cooling system when battery pack, without cooling device is separately arranged, structure is simple, increases the heat dissipation redundancy of system,
Meet thermal diffusivity required for batteries in parallel connection mould group composed by 21700 big single battery cores of capacity, improves battery modules
Use reliability；
3, multiple thermal vias are additionally provided on the module casing two sidewalls, the central axis of each thermal vias and each
The centerline axis parallel of the inserting groove is arranged, and each thermal vias is in be arranged uniformly at intervals with each inserting groove；It mentions
The high thermal diffusivity of mould group, while promoting battery energy density, convenient for the heat dissipation on each 21700 battery core surface, improves battery mould
The service life of group；
3, module casing is made up of two completely identical in structure half shells of setting, each half-shell body position is corresponding
Setting is fastened, and by locking connector locking, further improves the intensity of structure, and high reliablity；
4, the quantity of the positioning column is even number, each positioning column relative to the module casing in the height direction
Center line is symmetrical set, and in symmetrically arranged a pair positioning column, and the top of one of them positioning column, which is equipped with, inserts
The top of tankage mouth, another positioning column is equipped with insertion head, for the inserting when two half shells are fastened
Positioning；The half shell includes sequentially connected left plate, epipleural, right side plate and lower side panel, the left plate, the upside
The fastening knot for fastening two half shells is equipped on the edge of plate, the right side plate and the lower side panel
Structure；The fastening structure on the left plate is clamp, and the fastening structure on the right side plate is card slot, the upside
The fastening structure on plate is to fasten plate, and the fastening structure on the lower side panel is to fasten slot；Entire mould group
Positioning and fastening structure ensure that quick assembling and integral strength requirement, the energy of further Lifting Modules group of mould group, and tie
Structure is simple, easy to operate, easy to maintain, has taken into account the economical and reasonability of structure；
5, the half shell is in integrated injection molding, and the half shell is made of phenoplasts, preferably acrylic nitrile-butadiene two
Alkene-styrol copolymer (ABS) or polyphenylene oxide (PPO) are made, and to meet lightweight, and reduce the process costs of production and processing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram (perspective view) of the series-parallel battery modules of 21700 battery cores of the utility model；
Fig. 2 is the structural schematic diagram (perspective view) of the 21700 battery core module group units of the utility model；
Fig. 3 is the structural schematic diagram (explosive view) of the 21700 battery core module group units of the utility model；
Fig. 4 is the structural schematic diagram (perspective view) of the half shell of the utility model；
Fig. 5 is the structural schematic diagram (main view) of the half shell of the utility model；
Fig. 6 is the structural schematic diagram (dorsal view) of the half shell of the utility model；
Fig. 7 is the structural schematic diagram (left view) of the half shell of the utility model；
Fig. 8 is the structural schematic diagram (right view) of the half shell of the utility model；
Fig. 9 is the structural schematic diagram (bottom view) of the half shell of the utility model；
Figure 10 is the structural schematic diagram (top view) of the half shell of the utility model；
Figure 11 is the structural schematic diagram (cross-sectional view) of the positioning column of the utility model；
Figure 12 is the mould group plate of the utility model and the assembling structure schematic diagram (interior views) of mould group slot；
Figure 13 is the structural schematic diagram of the banding component of the utility model.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Referring to shown in Fig. 1 to Figure 13, a kind of series-parallel battery modules of 21700 battery cores, including four concatenated 21700 batteries
Module group unit, the successively corresponding clamping limit in position from left to right of each 21700 battery modules unit, and connected by bolt and nut
Fitting successively installs fixation from left to right；The 21700 battery modules unit includes module casing 1 and multiple 21700 monomers electricity
Core 2, each 21700 single battery core are installed in the module casing, are mounted on the outer wall of the module casing two sides
For each 21700 single battery core to be carried out cylinder manifold 3 in parallel, it is laid on the two sides inner wall of the module casing multiple
For the corresponding inserting groove 5 for inserting each 21700 single battery core, it is additionally provided on the two sidewalls of the module casing for by institute
It states the electrode that the electrodes of 21700 single battery cores is pierced by and installs through-hole 6, each electrode installs through-hole and each inserting groove location
It corresponds, the electrode difference one of the multiple confluence pieces 4 and each 21700 single battery core both ends on each cylinder manifold is a pair of
It should connect；Each cylinder manifold in each 21700 battery modules unit is sequentially connected in series electrical connection.The module casing it is interior
Multiple positioning columns 7 that assembling positioning is carried out for the module casing, the central axis of each positioning column are additionally provided on side wall
It is set in parallel with the central axis of each inserting groove；The central axis of the positioning column is equipped with cold for carrying out to battery modules
But cooling water conservancy diversion through-hole 8；Each cooling water conservancy diversion lead to the hole site in each 21700 battery modules unit, which corresponds, to be connected
It is logical.The quantity of the positioning column is even number, center line of each positioning column relative to the module casing in the height direction
It is symmetrical set, and in symmetrically arranged a pair positioning column, the top of one of them positioning column is equipped with inserting notch
9, the top of another positioning column is equipped with insertion head 10, fixed for the inserting when two half shells are fastened
Position.
Multiple thermal vias 11 are additionally provided on module casing two sidewalls described in the present embodiment, in each thermal vias
The centerline axis parallel of mandrel line and each inserting groove is arranged, and each thermal vias and each inserting groove are equal in interval
Cloth setting；Each thermal vias position in each 21700 battery modules unit corresponds connection.The module casing
Including two completely identical in structure half shells 12, each half-shell body position is corresponding to fasten setting, and passes through locking connector
Locking, the locking connector are card slot clamp locking connector；The inserting is equipped on the inner sidewall of each half shell
Slot, and the notch position of each inserting groove is arranged in a one-to-one correspondence；Each half-shell in each 21700 battery modules unit
Body position corresponds clamping limit.The half shell include sequentially connected left plate 13, epipleural 14, right side plate 15 and under
Side plate 16, the left plate, the epipleural, the right side plate and the lower side panel edge on be equipped with for by two institutes
State the fastening structure that half shell is fastened.The fastening structure on the left plate is clamp 17, on the right side plate
The fastening structure is card slot 18, and the fastening structure on the epipleural is to fasten plate 19, the institute on the lower side panel
Fastening structure is stated to fasten slot 20.The locking connector is arranged on the fastening plate.The half shell is in one note
It is moulded into type.The half shell is made of phenoplasts.The bolt for fixing the cylinder manifold is additionally provided on the epipleural
Hole 21, the upper end of the module casing are equipped with the connecting groove 22 that positioning is attached for multiple module casings, the connection
Groove is arranged on the epipleural, and the bolt hole is arranged in the connecting groove；The half shell in integrated injection molding at
Type, the half shell are made of phenoplasts.
The series-parallel battery modules of 21700 battery cores described in the present embodiment, including multiple concatenated 21700 battery modules lists
Member, the successively corresponding clamping limit in position from left to right of each 21700 battery modules unit, and by bolt and nut connector from
Left-to-right successively installs fixation；The 21700 battery modules unit includes module casing and multiple 21700 single battery cores, each institute
It states 21700 single battery cores to be installed in the module casing, be mounted on the outer wall of the module casing two sides for will be each
21700 single battery core carries out cylinder manifold in parallel, is laid on the two sides inner wall of the module casing multiple for corresponding to
The inserting groove of each 21700 single battery core is inserted, is additionally provided on the two sidewalls of the module casing for single by described 21700
The electrode that the electrode of body battery core is pierced by installs through-hole, and each electrode installs through-hole and each inserting groove location corresponds,
The electrode of multiple confluence pieces and each 21700 single battery core both ends on each cylinder manifold connects one to one respectively；Respectively
Each cylinder manifold in the 21700 battery modules unit is sequentially connected in series；It is multiple for inserting by being arranged in module casing
21700 single battery cores are fixed on the module casing by the inserting groove for filling 21700 single battery core in a manner of inserting clamping
It is interior, and the corresponding clamping limit of each 21700 battery modules cell position is installed into fixation by bolt and nut connector, it can
Meet high-strength structure required for series-parallel battery modules composed by 21700 big single battery cores of capacity, and structure it is simple,
Manufacturing cost is lower.
The series-parallel battery modules of 21700 battery cores described in the present embodiment are additionally provided on the inner sidewall of the module casing more
A positioning column that assembling positioning is carried out for the module casing, the central axis of each positioning column and the center of each inserting groove
Axis is set in parallel；The central axis of the positioning column is equipped with logical for carrying out cooling cooling water conservancy diversion to battery modules
Hole；By the way that cooling water conservancy diversion through-hole is arranged, it can be connected to external cooling system, increase the refrigerating function of battery modules；And
The cooling water conservancy diversion through-hole of multiple battery modules can when being assembled into battery pack self-contained cooling system, do not have to the cooling dress of separately setting
It sets, structure is simple, increases the heat dissipation redundancy of system, meets batteries in parallel connection composed by 21700 big single battery cores of capacity
Thermal diffusivity required for mould group improves the use reliability of battery modules；
The series-parallel battery modules of 21700 battery cores described in the present embodiment are additionally provided on the module casing two sidewalls multiple
The centerline axis parallel of thermal vias, the central axis of each thermal vias and each inserting groove is arranged, and each described scattered
Heat through-hole is in be arranged uniformly at intervals with each inserting groove；The thermal diffusivity of mould group is improved, while promoting battery energy density,
Convenient for the heat dissipation on each 21700 battery core surface, the service life of battery modules is improved.
The series-parallel battery modules of 21700 battery cores described in the present embodiment, by the way that two completely identical in structure half-shells are arranged
Body forms module casing, and each half-shell body position is corresponding to fasten setting, and by locking connector locking, further increase
The intensity of structure, and high reliablity.
The series-parallel battery modules of 21700 battery cores described in the present embodiment, the quantity of the positioning column is even number, each described fixed
Position column is symmetrical set relative to the center line of the module casing in the height direction, and symmetrically arranged a pair positioning
In column, the top of one of them positioning column is equipped with inserting notch, and the top of another positioning column is equipped with insertion head, uses
In the inserting positioning when two half shells are fastened；The half shell include sequentially connected left plate, epipleural,
Right side plate and lower side panel, the left plate, the epipleural, the right side plate and the lower side panel edge on be equipped with and be used for
The fastening structure that two half shells are fastened；The fastening structure on the left plate is clamp, the right side
The fastening structure on plate is card slot, and the fastening structure on the epipleural is to fasten plate, on the lower side panel
The fastening structure is to fasten slot；The positioning of entire mould group and fastening structure ensure that quick assembling and the integral strength of mould group
It is required that the energy of further Lifting Modules group, and structure is simple, and it is easy to operate, it is easy to maintain, take into account the economical and reasonable of structure
Property.
The series-parallel battery modules of 21700 battery cores described in the present embodiment, the half shell are in integrated injection molding, and described half
Shell is made of phenoplasts, and preferably acrylonitrile-butadiene-styrene copolymer (ABS) or polyphenylene oxide (PPO) is made, with
Meet lightweight, and reduces the process costs of production and processing.
The series-parallel battery modules of 21700 battery cores described in the present embodiment, with the battery modules list of 21700 cylindrical electrical cores 33 simultaneously
For member, including 4 21700 battery core module group units, 4 M8 long bolts, 23,2 plastic end panel 24 and 2 side plate gold 25.Its
In, module shell can combine clamping two-by-two, play position-limiting action by special designing.When assembly, first by 4 33 and battery
Module group unit is cascaded, and then installs plastic end panel in two sides, installation side plate gold on the outside of plastic end panel, later with 4 root longs
Screw rod will be connected, and be fastened with nut, be completed the assembly of entire battery modules.It is shown in Figure 12, it is two neighboring described
After 21700 battery core module group units carry out inserting limit by the inserting cooperation between mould group plate 26 and mould group slot 27, pass through
Long bolt 23 is fixed；Further, referring to Figure 13, the series-parallel battery modules of 21700 battery core may be used also after having assembled
Further banding is carried out so that banding component 28 is arranged to fix, reinforces the structural strength of entire mould group.
The series-parallel battery modules of 21700 battery cores described in the present embodiment, the 21700 battery core module group unit, with 21700 circles
For the battery modules of column battery core 33 simultaneously, including half shell 2, cylinder manifold (being made of cupro-nickel material) 2；The half shell
By special designing, one complete, closed module casing of composition can be fastened two-by-two.Inserting groove, energy are designed in half shell
It is enough embedded in battery core, fixed supporting role is played to battery core.Cylinder manifold uses laser welding mode, by confluence copper bar and contact nickel sheet
Weld together.Its assembling process are as follows: first 21700 single battery cores are placed in the half shell of side according to identical electrodes direction,
Then half shell described in the other side is buckled in the half shell of this side according to 180 ° of overturning of form, passes through the card in half shell
It buckles and is combined, form a complete module casing；Two cylinder manifolds are finally individually positioned in the recessed of half shell two sides
In slot, make to contact nickel sheet and battery core contact electrode, later using professional welding machine, by nickel sheet together with battery core electrode welding,
Complete the assembly of entire battery modules.
The series-parallel battery modules of 21700 battery core disclosed in the utility model, the half shell inside are equipped with inserting groove and use
To fix 21700 single battery cores；The half shell front is provided with electrode and installs through-hole, battery core electrode to be exposed, side
Just it is welded with confluence piece；There are two circular ring type positioning column on the inside of the half shell, one of end is equipped with insertion head, and in addition one
Side end is equipped with inserting notch, when assembling two-by-two, when one of half shell overturns 180 °, on the positioning column of two half shells
Insertion head and inserting notch can mutually fasten.Four cycle side plate edges of half shell are designed using same thought, inside half
It is designed using convex, groove design is used inside half, when assembling two-by-two, when one of shell overturns 180 °, two and half
The protrusion and groove of the outer ring of shell can be fastened mutually.In the outside of the half shell, using same design, guarantee forming
After complete mould group, it can also cooperate between mould group and mould group, improve the convenience of assembly.It is disclosed in the utility model
21700 cylindrical electrical cores can be connected in parallel by the series-parallel battery modules of 21700 battery cores by structure, the energy of Lifting Modules group,
And structure is simple, easy to operate, easy to maintain.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of series-parallel battery modules of 21700 battery cores, it is characterised in that: 21700 batteries being arranged including multiple sequences
Module group unit, and each 21700 battery modules unit is successively installed by installing fixing piece and be integrally fixed；
The 21700 battery modules unit includes module casing and multiple 21700 single battery cores, each 21700 single battery core
It is installed in the module casing, is mounted on the outer wall of the module casing two sides for each 21700 monomer is electric
Core carries out cylinder manifold in parallel, is laid on the two sides inner wall of the module casing multiple for corresponding inserting each described 21700
The inserting groove of single battery core is additionally provided with for wearing the electrode of 21700 single battery core on the two sidewalls of the module casing
Electrode out installs through-hole, and each electrode installs through-hole and each inserting groove location corresponds, on each cylinder manifold
Multiple confluence pieces and the electrode at each 21700 single battery core both ends connect one to one respectively；
Each cylinder manifold in each 21700 battery modules unit is sequentially connected in series electrical connection.
2. the series-parallel battery modules of 21700 battery core according to claim 1, it is characterised in that: the module casing it is interior
Be additionally provided on side wall it is multiple carry out the positioning columns of assembling positioning for the module casing, the central axis of each positioning column with
The central axis of each inserting groove is set in parallel；The central axis of the positioning column is equipped with for cooling down to battery modules
Cooling water conservancy diversion through-hole；Each cooling water conservancy diversion lead to the hole site in each 21700 battery modules unit corresponds connection.
3. the series-parallel battery modules of 21700 battery core according to claim 2, it is characterised in that: the quantity of the positioning column
For even number, each positioning column is symmetrical set relative to the center line of the module casing in the height direction, and is symmetrically set
In a pair positioning column set, the top of one of them positioning column is equipped with inserting notch, another positioning column
Top is equipped with insertion head.
4. the series-parallel battery modules of 21700 battery core according to claim 3, it is characterised in that: the module casing two sides
Multiple thermal vias are additionally provided on wall, the central axis of each thermal vias and the centerline axis parallel of each inserting groove are set
It sets, and each thermal vias is in be arranged uniformly at intervals with each inserting groove；It is each in each 21700 battery modules unit
The thermal vias position corresponds connection.
5. the series-parallel battery modules of 21700 battery core according to claim 4, it is characterised in that: the module casing includes
Two completely identical in structure half shells, each half-shell body position is corresponding to fasten setting, and passes through locking connector locking；Respectively
The inserting groove is equipped on the inner sidewall of the half shell, and the notch position of each inserting groove is arranged in a one-to-one correspondence；Respectively
Each half-shell body position in the 21700 battery modules unit corresponds clamping limit.
6. the series-parallel battery modules of 21700 battery core according to claim 5, it is characterised in that: the half shell include according to
Left plate, epipleural, right side plate and the lower side panel of secondary connection, the left plate, the epipleural, the right side plate and it is described under
The fastening structure for fastening two half shells is equipped on the edge of side plate.
7. the series-parallel battery modules of 21700 battery core according to claim 6, it is characterised in that: the institute on the left plate
Stating fastening structure is clamp, and the fastening structure on the right side plate is card slot, the fastening structure on the epipleural
To fasten plate, the fastening structure on the lower side panel is to fasten slot.
8. the series-parallel battery modules of 21700 battery core according to claim 7, it is characterised in that: the locking connector is set
It sets on the fastening plate.
9. the series-parallel battery modules of 21700 battery core according to claim 8, it is characterised in that: the half shell is in one
Injection molding.
10. the series-parallel battery modules of 21700 battery core according to claim 9, it is characterised in that: the half shell uses phenol
Aldehyde plastics are made.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820975941.0U CN208208854U (en) | 2018-06-25 | 2018-06-25 | A kind of series-parallel battery modules of 21700 battery cores |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820975941.0U CN208208854U (en) | 2018-06-25 | 2018-06-25 | A kind of series-parallel battery modules of 21700 battery cores |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659464A (en) * | 2019-01-09 | 2019-04-19 | 郑州比克新能源汽车有限公司 | Battery modules |
| CN112366416A (en) * | 2020-11-10 | 2021-02-12 | 山东博胜动力科技股份有限公司 | LFP lithium battery |
-
2018
- 2018-06-25 CN CN201820975941.0U patent/CN208208854U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659464A (en) * | 2019-01-09 | 2019-04-19 | 郑州比克新能源汽车有限公司 | Battery modules |
| CN112366416A (en) * | 2020-11-10 | 2021-02-12 | 山东博胜动力科技股份有限公司 | LFP lithium battery |
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