CN208240772U - A kind of series-parallel battery modules of 18650 battery cores - Google Patents
A kind of series-parallel battery modules of 18650 battery cores Download PDFInfo
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- CN208240772U CN208240772U CN201820975761.2U CN201820975761U CN208240772U CN 208240772 U CN208240772 U CN 208240772U CN 201820975761 U CN201820975761 U CN 201820975761U CN 208240772 U CN208240772 U CN 208240772U
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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 18650 battery cores；Including the 18650 battery modules units that multiple sequences are arranged, and each 18650 battery modules unit is successively installed by installing fixing piece and be integrally fixed；The 18650 battery modules unit includes module casing and multiple 18650 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 18650 battery core disclosed in the utility model, 18650 single battery cores are fixed in the module casing in a manner of inserting clamping, and the corresponding clamping limit of each 18650 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 18650 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 18650 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 18650 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 18650 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 18650 battery cores.
Summary of the invention
The purpose of this utility model is that: it provides a kind of 18650 battery cores series-parallel battery modules, solves 18650 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 18650 battery cores, including the 18650 battery modules units that multiple sequences are arranged,
And each 18650 battery modules unit is successively installed by installing fixing piece and be integrally fixed；
The 18650 battery modules unit includes module casing and multiple 18650 single battery cores, each 18650 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 18650
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 18650 single battery cores is additionally provided on the two sidewalls of the module casing for by the electricity of 18650 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 18650 single battery core both ends on plate connects one to one respectively；Each inserting groove
Cell wall on be equipped with along the inserting groove length direction perforation heat dissipation gap；
Each cylinder manifold in each 18650 battery modules unit is sequentially connected in series electrical connection.
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 18650 battery modules unit corresponds connection.
Preferably, the cell wall of the inserting groove includes multiple radiating blocks, is arranged between the heat dissipation between each radiating block
Gap, and each radiating block side opposite with 18650 single battery core is arranged in cambered surface, the thermal vias is arranged four
On the central axis of the public radiating block between a inserting groove.
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 18650 battery modules unit is one by one
Corresponding clamping limit.
Preferably, multiple positioning for fasten for the half shell positioning are additionally provided on the inner sidewall of the half shell
Column is laid with multiple positioning column reinforcing ribs on the circumferencial direction of each positioning column, and each positioning column reinforcing rib is in length
On direction with the centerline axis parallel of the positioning column.
Preferably, the quantity of the positioning column is even number, and each positioning column is relative to the half shell in short transverse
On center line be symmetrical set, and in symmetrically arranged a pair positioning column, the top of one of them positioning column is set
There is inserting notch, the top of another positioning column is equipped with insertion head, for when two half shells are fastened
Inserting positioning.
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 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 18650 battery core disclosed in the utility model, including multiple concatenated 18650 battery moulds
Group unit, the successively corresponding clamping limit in position from left to right of each 18650 battery modules unit, and connected by bolt and nut
Part successively installs fixation from left to right；The 18650 battery modules unit includes module casing and multiple 18650 single battery cores,
Each 18650 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 18650 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 18650 single battery core is additionally provided on the two sidewalls of the module casing for will be described
The electrode that the electrode of 18650 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 18650 single battery core both ends on each cylinder manifold corresponds respectively
Connection；It is equipped on the cell wall of each inserting groove along the heat dissipation gap of inserting groove length direction perforation；Each described 18650
Each cylinder manifold in battery modules unit is sequentially connected in series；It is multiple described for inserting by being arranged in module casing
18650 single battery cores are fixed in the module casing by the inserting groove of 18650 single battery cores in a manner of inserting clamping, and
The corresponding clamping limit of each 18650 battery modules cell position is installed into fixation by bolt and nut connector, can satisfy
High-strength structure required for series-parallel battery modules composed by 18650 big single battery cores of capacity, and structure is simple, manufacture
Cost is relatively low；Meanwhile be equipped on the cell wall of each inserting groove along the heat dissipation gap of inserting groove length direction perforation, increase
Heat dissipation area is added, has met thermal diffusivity required for series-parallel battery modules composed by 18650 big single battery cores of capacity, mention
The high use reliability of battery modules；
2, 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；Institute
The cell wall for stating inserting groove includes multiple radiating blocks, and the heat dissipation gap, and each radiating block are arranged between each radiating block
The side opposite with 18650 single battery core is arranged in cambered surface, and the thermal vias is arranged between four inserting grooves
The public radiating block central axis on；The thermal diffusivity of mould group is improved, while promoting battery energy density, is convenient for
The heat dissipation on each 18650 battery core surface, improves the service life of battery modules；
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, multiple positioning columns for fasten for the half shell positioning are additionally provided on the inner sidewall of the half shell, respectively
Multiple positioning column reinforcing ribs are laid on the circumferencial direction of the positioning column, each positioning column reinforcing rib is in the longitudinal direction
With the centerline axis parallel of the positioning column；The quantity of the positioning column is even number, and each positioning column is relative to the half-shell
The center line of body in the height direction is symmetrical set, and in symmetrically arranged a pair positioning column, one of them is described fixed
The top of position column is equipped with inserting notch, and the top of another positioning column is equipped with insertion head, in two half shells
Inserting positioning when being fastened；The half shell includes sequentially connected left plate, epipleural, right side plate and lower side panel, institute
It states and is equipped on the edge of left plate, the epipleural, the right side plate and the lower side panel for by two half shells
The fastening structure fastened；The fastening structure on the left plate is clamp, the fastening knot on the right side plate
Structure is card slot, and the fastening structure on the epipleural is to fasten plate, and the fastening structure on the lower side panel is button
Close slot；The positioning of entire mould group and fastening structure ensure that the quick assembling and integral strength requirement of mould group, further be promoted
The energy of mould group, and structure is simple, it is easy to operate, it is easy to maintain, take 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 18650 battery cores of the utility model；
Fig. 2 is the structural schematic diagram (perspective view) of the 18650 battery core module group units of the utility model；
Fig. 3 is the structural schematic diagram (explosive view) of the 18650 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, band inserting notch arrangement) of the positioning column of the utility model；
Figure 12 is the structural schematic diagram (cross-sectional view, band inserting header structure) of the positioning column of the utility model；
Figure 13 is the mould group plate of the utility model and the assembling structure schematic diagram (interior views) of mould group slot；
Figure 14 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 14, a kind of series-parallel battery modules of 18650 battery cores, including four concatenated 18650 batteries
Module group unit, the successively corresponding clamping limit in position from left to right of each 18650 battery modules unit, and connected by bolt and nut
Fitting successively installs fixation from left to right；The 18650 battery modules unit includes module casing 1 and multiple 18650 monomers electricity
Core 2, each 18650 single battery core are installed in the module casing, are mounted on the outer wall of the module casing two sides
For each 18650 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 18650 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 18650 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 18650 single battery core both ends on each cylinder manifold is a pair of
It should connect；It is equipped on the cell wall of each inserting groove along the heat dissipation gap 12 of inserting groove length direction perforation；It is each described
Each cylinder manifold in 18650 battery modules units is sequentially connected in series.Multiple heat dissipations are additionally provided on the module casing two sidewalls
The centerline axis parallel of through-hole 8, the central axis of each thermal vias and each inserting groove is arranged, and each heat dissipation is logical
Hole is in be arranged uniformly at intervals with each inserting groove；Each thermal vias position in each 18650 battery modules unit
Correspond connection.The cell wall of the inserting groove includes multiple radiating blocks 11, is arranged between the heat dissipation between each radiating block
Gap, and each radiating block side opposite with 18650 single battery core is arranged in cambered surface, the thermal vias is arranged four
On the central axis of the public radiating block between a inserting groove.The module casing includes two complete phases of structure
Same half shell 7, each half-shell body position is corresponding to fasten setting, and passes through locking connector locking, the locking connector
For card slot clamp locking connector；It is equipped with the inserting groove on the inner sidewall of each half shell, and each inserting groove
Notch position is arranged in a one-to-one correspondence；Each half-shell body position in each 18650 battery modules unit corresponds clamping
Limit.Multiple positioning columns 13 for fasten for the half shell positioning, each institute are additionally provided on the inner sidewall of the half shell
It states and is laid with multiple positioning column reinforcing ribs 14 on the circumferencial direction of positioning column, each positioning column reinforcing rib is in the longitudinal direction
With the centerline axis parallel of the positioning column.
The quantity of positioning column described in the present embodiment is even number, and each positioning column is relative to the half shell 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 15, the top of another positioning column is equipped with insertion head 16, for being detained in two half shells
Inserting positioning when conjunction；The central axis of the positioning column is equipped with auxiliary heat dissipation through-hole 9, for by the heat in module casing
Export, the auxiliary heat dissipation through-hole are connected to the inserting notch and the insertion head respectively.The half shell includes successively connecting
Left plate 17, epipleural 18, right side plate 19 and the lower side panel 20 connect, the left plate, the epipleural, the right side plate and institute
State the fastening structure being equipped on the edge of lower side panel for fastening two half shells.Institute on the left plate
Stating fastening structure is clamp 21, and the fastening structure on the right side plate is card slot 22, the fastening on the epipleural
Structure is to fasten plate 23, and the fastening structure on the lower side panel is to fasten slot 24；Use is additionally provided on the epipleural
In the bolt hole 10 of the fixation cylinder manifold, the half shell is in integrated injection molding, and the half shell uses phenoplasts system
At.
The series-parallel battery modules of 18650 battery cores described in the present embodiment, including multiple concatenated 18650 battery modules lists
Member, the successively corresponding clamping limit in position from left to right of each 18650 battery modules unit, and by bolt and nut connector from
Left-to-right successively installs fixation；The 18650 battery modules unit includes module casing and multiple 18650 single battery cores, each institute
It states 18650 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
18650 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 18650 single battery core is inserted, is additionally provided on the two sidewalls of the module casing for single by described 18650
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 18650 single battery core both ends on each cylinder manifold connects one to one respectively；Respectively
It is equipped on the cell wall of the inserting groove along the heat dissipation gap of inserting groove length direction perforation；Each 18650 battery mould
Each cylinder manifold in group unit is sequentially connected in series；It is multiple for inserting 18650 monomer by being arranged in module casing
18650 single battery cores are fixed in the module casing by the inserting groove of battery core in a manner of inserting clamping, and will be each described
The corresponding clamping limit of 18650 battery modules cell positions installs fixation by bolt and nut connector, can satisfy capacity greatly
High-strength structure required for series-parallel battery modules composed by 18650 single battery cores, and structure is simple, manufacturing cost compared with
It is low；Meanwhile be equipped on the cell wall of each inserting groove along the heat dissipation gap of inserting groove length direction perforation, it increases scattered
Heat area meets thermal diffusivity required for series-parallel battery modules composed by 18650 big single battery cores of capacity, improves electricity
The use reliability of Chi Mo group.
The series-parallel battery modules of 18650 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 cell wall of the inserting groove includes multiple radiating blocks, each heat dissipation
The heat dissipation gap is set between block, and each radiating block side opposite with 18650 single battery core is arranged in cambered surface,
The thermal vias is arranged on the central axis of the public radiating block between four inserting grooves；Improve mould group
Thermal diffusivity, promoted battery energy density while, convenient for the heat dissipation on each 18650 battery core surface, improve the use of battery modules
Service life.
The series-parallel battery modules of 18650 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 18650 battery cores described in the present embodiment are additionally provided on the inner sidewall of the half shell multiple
Fasten for the half shell positioning column of positioning, is laid with multiple positioning columns on the circumferencial direction of each positioning column
Reinforcing rib, each positioning column reinforcing rib centerline axis parallel with the positioning column in the longitudinal direction；The positioning column
Quantity is even number, and each positioning column is symmetrical set relative to the center line of the half shell in the height direction, and symmetrical
In a pair positioning column of setting, the top of one of them positioning column is equipped with inserting notch, another described positioning column
Top be equipped with insertion head, for when two half shells are fastened inserting positioning；The half shell includes successively
Left plate, epipleural, right side plate and the lower side panel of connection, the left plate, the epipleural, the right side plate and the downside
The fastening structure for fastening two half shells is equipped on the edge of plate；The fastening on the left plate
Structure is clamp, and the fastening structure on the right side plate is card slot, and the fastening structure on the epipleural is to fasten
Plate, the fastening structure on the lower side panel are to fasten slot；The positioning of entire mould group and fastening structure ensure that mould group
Quick assembling and integral strength requirement, the energy of further Lifting Modules group, and structure is simple is easy to operate, easy to maintain, takes into account
The economical and reasonability of structure.
The series-parallel battery modules of 18650 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 18650 battery cores described in the present embodiment, with the battery modules list of 18650 cylindrical electrical cores 44 simultaneously
For member, including 4 18650 battery core module group units, 2 M6 long bolts 26,2 plastic end panel 27,2 of M8 long bolt 25,2
Side plate 28 and 1 harness upper covers 29 of gold.Wherein, module shell can combine clamping by special designing two-by-two, play limit and make
With.When assembly, first by 4 44 and battery modules unit is cascaded, plastic end panel then is installed in two sides, outside plastic end panel
Side installation side plate gold, will be connected with four root long screw rods later, and be fastened with nut, complete the assembly of entire battery modules.Ginseng
As shown in Figure 13, the two neighboring 18650 battery core module group unit passes through the inserting between mould group plate 30 and mould group slot 31
After cooperation carries out inserting limit, it is fixed by long bolt；Further, referring to Figure 14,18650 battery core is electric in series and parallel
Chi Mo group can also be arranged banding component 32 and carry out further banding after having assembled fixes, and the structure for reinforcing entire mould group is strong
Degree.
The series-parallel battery modules of 18650 battery cores described in the present embodiment, the 18650 battery core module group unit, with 18650 circles
For the battery modules unit of column battery core 44 simultaneously, including half shell 2, cylinder manifold (being made of cupro-nickel material) 2；Described half
Shell can fasten one complete, closed module casing of composition by special designing two-by-two.Design inserting in half shell
Slot can be embedded in battery core, play fixed supporting role to battery core.Cylinder manifold uses laser welding mode, by confluence copper bar and connects
Touching nickel sheet welds together.Its assembling process are as follows: 18650 single battery cores are first placed on side half-shell according to identical electrodes direction
In body, half shell described in the other side is buckled in the half shell of this side according to 180 ° of overturning of form then, passes through half shell
On buckle be combined together, form a complete module casing；Two cylinder manifolds are finally individually positioned in half shell two
In the groove of side, make to contact nickel sheet and battery core contact electrode, later using professional welding machine, nickel sheet and battery core electrode welding are existed
Together, the assembly of entire battery modules is completed.
The series-parallel battery modules of 18650 battery core disclosed in the utility model, the half shell inside are equipped with inserting groove and use
To fix 18650 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
18650 cylindrical electrical cores can be connected in parallel by the series-parallel battery modules of 18650 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 18650 battery cores, it is characterised in that: 18650 batteries being arranged including multiple sequences
Module group unit, and each 18650 battery modules unit is successively installed by installing fixing piece and be integrally fixed；
The 18650 battery modules unit includes module casing and multiple 18650 single battery cores, each 18650 single battery core
It is installed in the module casing, is mounted on the outer wall of the module casing two sides for each 18650 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 18650
The inserting groove of single battery core is additionally provided with for wearing the electrode of 18650 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 18650 single battery core both ends connect one to one respectively；The slot of each inserting groove
It is equipped on wall along the heat dissipation gap of inserting groove length direction perforation；
Each cylinder manifold in each 18650 battery modules unit is sequentially connected in series electrical connection.
2. the series-parallel battery modules of 18650 battery core according to claim 1, 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 18650 battery modules unit
The thermal vias position corresponds connection.
3. the series-parallel battery modules of 18650 battery core according to claim 2, it is characterised in that: the cell wall of the inserting groove
Including multiple radiating blocks, the heat dissipation gap, and each radiating block and 18650 monomer are set between each radiating block
The opposite side of battery core is arranged in cambered surface, and the public heat dissipation between four inserting grooves is arranged in the thermal vias
On the central axis of block.
4. the series-parallel battery modules of 18650 battery core according to claim 3, 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 18650 battery modules unit corresponds clamping limit.
5. the series-parallel battery modules of 18650 battery core according to claim 4, it is characterised in that: the inside of the half shell
It is additionally provided with multiple positioning columns for fasten for the half shell positioning on wall, is evenly distributed on the circumferencial direction of each positioning column
Equipped with multiple positioning column reinforcing ribs, each positioning column reinforcing rib is flat with the central axis of the positioning column in the longitudinal direction
Row.
6. the series-parallel battery modules of 18650 battery core according to claim 5, 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 half shell in the height direction, and is symmetrical arranged
A pair positioning column in, the top of one of them positioning column is equipped with inserting notch, the top of another positioning column
End is equipped with insertion head, for the inserting positioning when two half shells are fastened.
7. the series-parallel battery modules of 18650 battery core according to claim 6, 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.
8. the series-parallel battery modules of 18650 battery core according to claim 7, 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.
9. the series-parallel battery modules of 18650 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 18650 battery core according to claim 9, it is characterised in that: the half shell uses phenol
Aldehyde plastics are made.
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