CN206742367U - A kind of bus-bar and lithium ion battery module group unit - Google Patents
A kind of bus-bar and lithium ion battery module group unit Download PDFInfo
- Publication number
- CN206742367U CN206742367U CN201720443527.0U CN201720443527U CN206742367U CN 206742367 U CN206742367 U CN 206742367U CN 201720443527 U CN201720443527 U CN 201720443527U CN 206742367 U CN206742367 U CN 206742367U
- Authority
- CN
- China
- Prior art keywords
- bus
- bar
- battery core
- stainless steel
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the battery pack integrated technology field of pure electric passenger vehicle, pure electric commercial vehicle, more particularly to a kind of bus-bar and lithium ion battery module group unit, including by being superimposed with each other together and the substrate with layer structure that forms of the copper sheet by being welded and fixed and stainless steel substrates；Wherein stainless steel substrates are formed with battery core welded structure on substrate, and the copper sheet of battery core welding region is provided with the through hole for being easy to welding on substrate.Nickel sheet is replaced by stainless steel substrates by the utility model, by laser welding, copper sheet and stainless steel substrates is linked together, is greatly reduced the cost of material of bus-bar.
Description
Technical field
The utility model belongs to the battery pack integrated technology field of pure electric passenger vehicle, pure electric commercial vehicle, and in particular to
A kind of bus-bar and lithium ion battery module group unit.
Background technology
With the development of technology and the raising of environmental protection consciousness, pure electric vehicle has been increasingly becoming China Automobile Industry
Another main trend.At this stage, riding electric car and commercial electric car mostly using lithium ion battery as main energetic come
Source, lithium ion battery with compared to other traditional rechargeable batteries have voltage it is high, it is bigger than energy, have extended cycle life, safely
The advantages such as performance is good, self discharge is small, quick charge, operating temperature range are wide.The lithium battery electric core of generally use 18650 in industry
(i.e. diameter 18mm, length 65mm circular battery core) is integrated into modular battery modules.In integrated battery module, need first
By some each battery cores and an entirety is unified into, is turned on the homopolarity of each battery core generally by bus-bar.Tradition is confluxed
Row is usually to be welded by copper sheet and nickel sheet, but in the market cupro-nickel composite bus-bar wire, and processing cost is higher, cycle length, nothing
Method adapts to popularize on a large scale.
Utility model content
The purpose of this utility model is to provide a kind of relatively low bus-bar of manufacturing cost and lithium ion battery module group unit.
To achieve the above object, the utility model provides following technical scheme：A kind of bus-bar, including by being superimposed with each other
Together and the substrate with layer structure that forms of the copper sheet by being welded and fixed and stainless steel substrates；Wherein stainless steel substrates are formed
With battery core welded structure on substrate, the copper sheet of battery core welding region is provided with the through hole for being easy to welding on substrate.
Hollow-out parts are provided with the region of battery core welding on the stainless steel substrates, being suspended in the hollow-out parts has a shell fragment, described
Shell fragment and stainless steel substrates are integral type structure.
The shell fragment includes being used to be bonded the weld part of battery core electrode and for connecting welding portion and the company of stainless steel substrates
Socket part, the connecting portion bend to the side where battery core and set, and protrude from weld part relative with battery core on stainless steel substrates
Side.
A welding hole is offered on the weld part.
The narrow slit for preventing weld part temperature distortion is additionally provided with the weld part, the narrow slit is parallel to the outstanding of shell fragment
Direction setting is stretched, and narrow slit is penetrated to the projecting end of shell fragment.
A kind of lithium ion battery module group unit, including described bus-bar, and surrounded by relative fasten of two half shells
Shell, and array is arranged on the battery core in shell, and the half shell is made up of insulating materials, array on the bottom wall of two half shells
Multiple battery core fixing grooves are provided with, and the battery core fixing groove in two halves shell bottom wall is corresponded and set；The bottom of two half shells
A bus-bar is respectively provided with, positive and negative electrode of two bus-bars respectively with each battery core turns on, and makes each battery core in parallel.
The bus-bar is located at the outside of half shell bottom wall, and each battery core fixing groove is the counterbore of insertion half shell bottom wall
Shape structure, the electrode of battery core is touched the bus-bar of bottom wall outer, an insulating back panel, institute are provided with the outside of the bus-bar
The edge for stating insulating back panel forms detachable connection by the edge of buckle and half shell bottom wall.
A wherein side wall for one end protrusion half shell of the bus-bar is set, and the bus-bar of the projection is to the side
Wall is bent, and is attached to the outside of the side wall.
The bus-bar of the projection is provided with bolt mounting holes, and the half shell where the bus-bar of the projection
Inserts with threaded hole is embedded with side wall, and the bolt mounting holes position correspondence on the screwed hole and bus-bar of the inserts is set
Put.
It is of the present utility model to have technical effect that：Nickel sheet is replaced by stainless steel substrates, by laser welding, makes copper sheet and not
Rust steel disc links together, and greatly reduces the cost of material of bus-bar.
Brief description of the drawings
Fig. 1 is the lithium ion battery module dimensional structure diagram that embodiment of the present utility model is provided；
Fig. 2 is the half shell inside structure schematic diagram that embodiment of the present utility model is provided；
Fig. 3 is dimensional structure diagram on the outside of half shell that embodiment of the present utility model is provided；
Fig. 4 is the lithium ion battery module group unit structural representation that embodiment of the present utility model is provided, it is illustrated that for the back of the body
State after plate is removed；
Fig. 5 is the lithium ion battery module group unit structural representation that embodiment of the present utility model is provided；
Fig. 6 is the front view for the half shell that embodiment of the present utility model is provided；
Fig. 7 is the top view for the half shell that embodiment of the present utility model is provided；
Fig. 8 is the dimensional structure diagram that embodiment of the present utility model provides bus-bar.
Embodiment
The technical solution of the utility model is described in detail below in conjunction with specific embodiment.
As shown in figure 1, a kind of lithium ion battery module, the module is connected by least two lithium ion battery module group units 10
Form；As shown in Figure 2,3, the lithium ion battery module group unit 10 is outer including being surrounded by the relative fastening of two half shells 11
Shell, and array are arranged on the battery core in shell, and the half shell 11 is made up of insulating materials, and the bottom wall of two half shells 11 is gone into battle
Row are provided with multiple battery core fixing grooves 12, and the battery core fixing groove 12 on the bottom wall of two half shell 11 is corresponded and set；Two half-shells
The bottom of body 11 is respectively provided with a bus-bar 18, and positive and negative electrode of two bus-bars 18 respectively with each battery core turns on, and makes same lithium-ion electric
Each battery core in pond module group unit 10 is in parallel；The positive and negative electrode bus-bar 18 of each lithium ion battery module group unit 10 is sequentially led
It is logical；
Preferably, the bus-bar is included by being superimposed with each other together and copper sheet 182 and stainless steel by being welded and fixed
The substrate with layer structure that piece 183 is formed；Wherein stainless steel substrates 183 form substrate on battery core welded structure, substrate
The copper sheet 182 of upper battery core welding region is provided with the through hole for being easy to welding.The region welded on the stainless steel substrates 183 with battery core
Being suspended provided with hollow-out parts, in the hollow-out parts has a shell fragment, and the shell fragment and stainless steel substrates 183 are integral type structure.The shell fragment
Including for being bonded the weld part 181 of battery core electrode and for connecting welding portion 181 and the connecting portion 184 of stainless steel substrates, institute
State connecting portion 184 and bend setting to the side where battery core, protrude from weld part 181 relative with battery core on stainless steel substrates 183
Side.A welding hole 187 is offered on the weld part.It is additionally provided with the weld part 181 for preventing weld part from being become by heat
The narrow slit 185 of shape, the narrow slit 185 is set parallel to the overhanging direction of shell fragment, and narrow slit 185 is penetrated to the projecting end of shell fragment,
Narrow slit end is provided with circular crack arrest groove 186.
Preferably, be arranged at intervals with the white space between each battery core fixing groove 12 on the bottom wall of half shell 11 to
Few two bolts hole 13 passed through for the bolt of two half shells 11 of connection, and at least two for connecting different lithium ion battery moulds
The tie rod hole 14 that the pull bar of group unit 10 passes through；Each battery core fixing groove 12 it is parallel line up multiple row, every at least two row draw
For a section, two row battery core fixing grooves 12 located adjacent one another are symmetrical arranged between adjacent two section, adjacent in same section
Two row battery core fixing grooves, 12 interlaced arrangement, the tie rod hole 14 are located between the battery core fixing groove 12 in adjacent two section, and
The mutually adjacent interlaced arrangement of two row battery core fixing groove 12 between two sections；Each bolt hole 13 is arranged on battery core fixing groove
In 12 arrays, and each bolt hole 13 takes a position of battery core fixing groove 12.As shown in fig. 6, at one of the present utility model
It is altogether a section provided with four row's battery core fixing grooves 12, every two row, four row's battery core fixing grooves 12 are on half shell 11 in embodiment
Bottom wall central line be arranged symmetrically, wherein among spacing between two row's battery core fixing grooves 12 be more than this two rows battery core fixing groove 12
Spacing between two row's battery core fixing grooves 12 of both sides, make that between this two rows battery core fixing groove 12 pull bar can just be reserved
The position in hole 14, in the embodiment, bolt hole 13 is for being provided with three, and one of them is located at one end of the bottom wall of half shell 11, in addition
Two both sides for being located at the bottom wall other end of half shell 11, three bolts hole 13 are arranged in isosceles triangle.
Preferably, as shown in figure 4, the bus-bar 18 is located at the outside of the bottom wall of half shell 11, each battery core fixing groove
12, to penetrate the heavy cavernous structure of the bottom wall of half shell 11, enable the electrode of battery core to touch the bus-bar 18 of bottom wall outer；Such as
Shown in Fig. 5, the outside of bus-bar 18 is provided with an insulating back panel 19, and the edge of the insulating back panel 19 passes through buckle and half shell
The edge of 11 bottom walls forms detachable connection.In embodiment provided by the utility model, the surrounding side wall of half shell 11 is convex
Go out the segment distance of bottom wall one, bottom wall outer is formed a shallow slot, the bus-bar 18 and backboard 19 are installed in the shallow slot.It is described
The shape of bus-bar 18 is designed according to the shape of the bottom wall of half shell 11, while empty to avoid bolt hole 13 and pull bar, is confluxed
The perforate design of adaptability is done on row 18, concrete structure is as shown in Fig. 4,8.The edge of the backboard 19 is provided with the card protruded outward
Button, the edge of the shallow slot are provided with the neck 111 with being clasped, and both coordinate the detachable connection of achievable backboard 19.
Preferably, as shown in Fig. 1,4,7,8, a wherein side wall 112 for one end protrusion half shell 11 of the bus-bar 18
Set, and the bus-bar 18 of the projection is bent to the side wall 112, and it is attached to the outside of the side wall 112；Further,
The bus-bar 18 of the projection is provided with bolt mounting holes, and the side of half shell 11 where the bus-bar 18 of the projection
Inserts 113 with threaded hole, and the screwed hole of the inserts 113 and the bolt mounting holes position pair on bus-bar 18 are embedded with wall
It should set.Preferably, pre-buried inserts 113 uses copper nut.
As shown in figure 1, the bottom wall of half shell 11 of each lithium ion battery module group unit 10 is bonded successively, positioned at both ends
A side guide 20 is respectively equipped with the bottom wall of outside half shell 11 of two lithium ion battery module group units 10, on the side guide 20
Provided with the through hole corresponding with the tie rod hole 14 on each lithium ion battery module group unit 10, pull bar 22 sequentially passes through each lithium-ion electric
The through hole on tie rod hole 14 and side guide 20 on pond module group unit 10, the both ends of pull bar 22 are tensed with anchorage.Preferably, it is described
The edge of side guide 20 is provided with reinforcement, and the outside of side guide 20 is additionally provided with hook.Adopted in embodiment provided by the utility model
By the use of stay bolt as pull bar 22, stay bolt one end has bolt head, and the other end has screw thread, and the anchorage is that bolt end is set
The nut put.
Preferably, as shown in figure 1, the polarity of adjacent two lithium ion batteries module group unit 10 it is different two bus-bars 18 it is neighbouring
Arrangement, and the projection of two bus-bars 18 is generally aligned in the same plane interior, the upper cap of the projection of two bus-bars 18
There is a bus-bar 21 in parallel, the projection of the bus-bar 21 in parallel and described two bus-bars 18 passes through bolt and described band
There is the inserts 113 of screwed hole affixed.
Preferably, as shown in Fig. 2 upper circumferentially spaced be provided with multiple anti-skid bulges 121, the court of anti-skid bulge 121
The oblique wedge-like structure of battery core insertion is easy for one end of the notch of battery core fixing groove 12.
Preferably, thermovent 15 is offered at least one of side wall of half shell 11；Such as the illustrated embodiment of Fig. 2,3,4,5
In, thermovent 15 is opened in the junction of two half shells 11, i.e. thermovent 15 is two half bore splicing by housing sidewall edge
Form.But the thermovent 15 in the utility model is not limited only to interface shown in figure, for example, it is also possible to which heat emission hole is integrally opened up
In the side wall of half shell 11.
Preferably, the bolt hole 13 is located at one end of the bottom wall outer of half shell 11 and is provided with countersink region 131, and one of them
Nut inserts 132 is embedded with the countersink region 131 of the bolt hole 13 of half shell 11.Countersink region 131 can be placed in bolt head
Inside half shell 11, it is ensured that the bottom wall outer of half shell 11 is smooth, to be spliced and combined between each module group unit.
Further, the both ends of the side wall of half shell 11 where the bus-bar 18 of the projection with it is another in half shell 11
The corner formed between outer two side is provided with the groove 17 for cabling.
The side wall of half shell 11 where the bus-bar 18 of the projection is provided with spacing preiection 16, the spacing preiection
16 one end away from the bottom wall of half shell 11 in the side wall.The bus-bar in parallel 21 is arranged on the limit of adjacent two half shell 11
Between position projection 16, avoid bus-bar 18 during actual installation from sliding, produce sparking.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
- A kind of 1. bus-bar, it is characterised in that：Including by being superimposed with each other together and copper sheet and stainless steel by being welded and fixed The substrate with layer structure that piece is formed；Wherein stainless steel substrates are formed with battery core welded structure on substrate, battery core on substrate The copper sheet of welding region is provided with the through hole for being easy to welding.
- 2. bus-bar according to claim 1, it is characterised in that：Region on the stainless steel substrates with battery core welding is provided with Hollow-out parts, the interior suspension of the hollow-out parts have a shell fragment, and the shell fragment and stainless steel substrates are integral type structure.
- 3. bus-bar according to claim 2, it is characterised in that：The shell fragment includes being used for the welding for being bonded battery core electrode Portion and for connecting welding portion and the connecting portion of stainless steel substrates, the connecting portion bends to the side where battery core and set, and makes Weld part protrudes from side relative with battery core on stainless steel substrates.
- 4. bus-bar according to claim 3, it is characterised in that：A welding hole is offered on the weld part.
- 5. bus-bar according to claim 4, it is characterised in that：Be additionally provided with the weld part for prevent weld part by The narrow slit of thermal deformation, the narrow slit is set parallel to the overhanging direction of shell fragment, and narrow slit is penetrated to the projecting end of shell fragment.
- A kind of 6. lithium ion battery module group unit, it is characterised in that：Including the bus-bar described in claim 1 to 5 any one, And the shell surrounded is fastened relatively by two half shells, and array is arranged on the battery core in shell, the half shell is by insulating Material is made, and array is provided with multiple battery core fixing grooves on the bottom wall of two half shells, and the battery core in two halves shell bottom wall is fixed Groove, which corresponds, to be set；The bottom of two half shells is respectively provided with a bus-bar, and positive and negative electrode of two bus-bars respectively with each battery core is led It is logical, make each battery core in parallel.
- 7. lithium ion battery module group unit according to claim 6, it is characterised in that：The bus-bar is located at half shell bottom The outside of wall, each battery core fixing groove are the heavy cavernous structure of insertion half shell bottom wall, the electrode of battery core is touched The bus-bar of bottom wall outer, the bus-bar outside are provided with an insulating back panel, and the edge of the insulating back panel passes through buckle and half The edge of shell bottom wall forms detachable connection.
- 8. lithium ion battery module group unit according to claim 6, it is characterised in that：One end protrusion half of the bus-bar A wherein side wall for housing is set, and the bus-bar of the projection is bent to the side wall, and is attached to the outside of the side wall.
- 9. lithium ion battery module group unit according to claim 8, it is characterised in that：On the bus-bar of the projection Provided with bolt mounting holes, and inserts with threaded hole is embedded with the half-shell body sidewall where the bus-bar of the projection, and Bolt mounting holes position correspondence on the screwed hole and bus-bar of the inserts is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720443527.0U CN206742367U (en) | 2017-04-21 | 2017-04-21 | A kind of bus-bar and lithium ion battery module group unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720443527.0U CN206742367U (en) | 2017-04-21 | 2017-04-21 | A kind of bus-bar and lithium ion battery module group unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206742367U true CN206742367U (en) | 2017-12-12 |
Family
ID=60560647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720443527.0U Active CN206742367U (en) | 2017-04-21 | 2017-04-21 | A kind of bus-bar and lithium ion battery module group unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206742367U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459726A (en) * | 2018-05-08 | 2019-11-15 | 欣旺达电动汽车电池有限公司 | 18650 aluminium dish laser welding schemes |
| WO2022226302A1 (en) * | 2021-04-23 | 2022-10-27 | Milwaukee Electric Tool Corporation | Conductive strap for battery pack |
| US11673205B2 (en) | 2018-04-20 | 2023-06-13 | Lg Energy Solution, Ltd. | Battery module having bus bar, and battery pack |
-
2017
- 2017-04-21 CN CN201720443527.0U patent/CN206742367U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11673205B2 (en) | 2018-04-20 | 2023-06-13 | Lg Energy Solution, Ltd. | Battery module having bus bar, and battery pack |
| CN110459726A (en) * | 2018-05-08 | 2019-11-15 | 欣旺达电动汽车电池有限公司 | 18650 aluminium dish laser welding schemes |
| WO2022226302A1 (en) * | 2021-04-23 | 2022-10-27 | Milwaukee Electric Tool Corporation | Conductive strap for battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206742367U (en) | A kind of bus-bar and lithium ion battery module group unit | |
| KR101326196B1 (en) | Battery Pack of Compact Structure | |
| JP3167551U (en) | Clamp | |
| CN104037372B (en) | Battery connecting construction assembly and use its accumulator battery | |
| CN104134762B (en) | Battery case | |
| CN107039615A (en) | Lithium ion battery module | |
| CN206742310U (en) | Lithium ion battery module | |
| CN203312398U (en) | Portable battery box of pure electric city bus | |
| CN208028112U (en) | A kind of battery core module end plate and automobile batteries packet | |
| JP3189971U (en) | Battery cell fixing device and power battery pack thereof | |
| CN207743257U (en) | Battery modules and battery pack | |
| WO2023131023A1 (en) | Top cover, battery and electric device | |
| CN215527866U (en) | A box and battery package for electric core stack body | |
| WO2022017513A1 (en) | Fixing structure, battery box and battery pack | |
| KR20240089508A (en) | Box, battery and electrical equipment | |
| CN205828508U (en) | A kind of set of cells of convenient dismounting | |
| CN209434236U (en) | A kind of 18650 battery core batteries in parallel connection module shells | |
| CN202949184U (en) | Concealed type metal conjunction box | |
| CN202050001U (en) | Explosion-proof power battery of injection molding fixed electrode | |
| CN202308196U (en) | High-capacity lithium ion battery | |
| CN202034445U (en) | Annular lithium ion power battery | |
| CN205004410U (en) | Electronic product and but dilatation lithium cell thereof | |
| CN205723668U (en) | A kind of lithium ion soft-package battery module | |
| CN203967154U (en) | Battery connecting construction assembly and use its batteries | |
| CN204836041U (en) | Laminate polymer battery sectional shelf -unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220407 Address after: 238014 No. 01, Guangtong automobile company yard, Huashan Industrial Park, Chaohu Economic Development Zone, Hefei, Anhui Province Patentee after: Anhui Huipeng New Energy Technology Co.,Ltd. Address before: 230000 factory building 726, Hefei Aviation Industrial Park, 35 Yan'an Road, Baohe District, Hefei City, Anhui Province Patentee before: ANHUI OUPENG BACH NEW ENERGY TECHNOLOGY Co.,Ltd. |