CN206610860U - A kind of lithium ion battery insures connection sheet - Google Patents
A kind of lithium ion battery insures connection sheet Download PDFInfo
- Publication number
- CN206610860U CN206610860U CN201720234825.9U CN201720234825U CN206610860U CN 206610860 U CN206610860 U CN 206610860U CN 201720234825 U CN201720234825 U CN 201720234825U CN 206610860 U CN206610860 U CN 206610860U
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- CN
- China
- Prior art keywords
- connection sheet
- pieces
- metal
- lithium ion
- ion battery
- 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.)
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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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- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
A kind of lithium ion battery insurance connection sheet of the present utility model, including connection sheet body, connection sheet body two ends are the A pieces as battery terminal connection end, and the centre of connection sheet body is C pieces, is connected between A pieces and C pieces by the B pieces of fluted body；The A pieces central aperture.The utility model connection sheet has soft connection and thermally safe management and control function; battery can effectively be prevented causes connection sheet to be broken because of vibration in use; trigger effective prevention accident during security incident to spread in battery-heating or in other cases simultaneously, protect whole system.
Description
Technical field
The utility model is related to technical field of lithium ion, insures in particular to a kind of lithium ion battery and connects
Piece.
Background technology
Lithium ion battery has that specific energy density is big, discharge and recharge long lifespan, power output are high, working range is wide, self discharge
Many advantages, such as small, environmental protection and secondary utilization, widely apply at present in electric automobile field, because electric automobile is needed
Larger operating current and voltage are wanted, it is therefore desirable to which multiple batteries are constituted into battery pack in series-parallel mode, with operating mode
Complexity, the structural stability and security of Li-ion batteries piles is extremely important.
Battery terminal connection combination is generally formed battery pack by current Li-ion batteries piles using rigid metal connection sheet, but
Current connection sheet generally only possesses common linkage function.In actual use, connection is often caused because of vibration
Piece loose contact, or even fracture, the normal of influence lithium ion battery are used.And during lasting use, connection sheet and electricity
Often trigger security incident because of heating in pond.
In view of some above-mentioned problems, the present inventor has done to the connection sheet of lithium ion battery to improve, and this case is thus
Produce.
Utility model content
For above-mentioned technical problem, the purpose of this utility model aims to provide a kind of lithium ion battery insurance connection sheet, should
Connection sheet has soft connection and thermally safe management and control function, and can effectively prevent battery in use causes because of vibration
Connection sheet is broken, while triggering effective prevention accident during security incident to spread in battery-heating or in other cases, is protected
Whole system.
To achieve these goals, the utility model is achieved through the following technical solutions：
A kind of lithium ion battery insures connection sheet, including connection sheet body, and connection sheet body two ends are as battery terminal
The A pieces of connection end, the centre of connection sheet body is C pieces, is connected between A pieces and C pieces by the B pieces of fluted body；In the middle of the A pieces
Perforate.
The B pieces of the fluted body, its cell body folding part is in circular arc, and arc angle scope is 5 °~180 °.
The thickness d and surface area S of described B pieces are adjustable by formula 1 and formula 2,
The heat that wherein Q absorbs when being metal molten, CMetalFor the specific heat of metal, S is the sectional area of metal, TIt is moltenFor metal
Fusing point, T0For the original temperature of metal, ρ is the density of metal；
Q=I2Rt (formula 2)
The heat that wherein Q absorbs when being metal melt, I is blowout current, and R is metallic resistance, and t is fusing time；
Formula 2 is substituted into formula 1 to obtain
In the case of the thickness d of described B pieces is determined, its surface area S is adjusted in B piece perforates.
Described connection sheet body, multi-disc is spliced and combined parallel.
The utility model is used after such scheme, is had the advantages that：
Lithium ion battery of the present utility model insures connection sheet, under the use state that battery last vibrates, B piece circular arcs
The design of shape has ductility, can effectively alleviate the rigid stress of connection, solve conventional rigid connection sheet in use because
Cause loose contact for vibration, or even the problem of fracture.In addition, B pieces are connected through heat accounting, used in battery series-parallel connection
In, in the case where internal short-circuit causes high current by even blast on fire, fracture in time can fast shut-off and other batteries
Connection, reduces the triggering probability to other battery thermal runaway states as far as possible, effectively reduces battery system in use
The safety problem caught fire, exploded is triggered under thermal runaway state.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model preferred embodiment；
Fig. 2 is the texture edge figure of the utility model preferred embodiment；
Fig. 3 is A portions enlarged drawing in Fig. 2；
Fig. 4 is the combining structure schematic diagram of the utility model preferred embodiment.
Embodiment
The utility model preferred embodiment is further described 1-3 below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of lithium ion battery insurance connection sheet, whole connection sheet body 1 can select copper metal material, even
Contact pin body 1 is divided into A pieces 2, B pieces 3 and C pieces 4.A pieces 2, B pieces 3 are symmetrical with 4 centers of C pieces two ends, specifically connection sheet
The two ends of body 1 are A pieces respectively, thereon perforate 5, are mainly used in being connected with battery terminal.The center section of connection sheet body 1 is C
Piece 4, is attached between A pieces 2 and C pieces 4 by B pieces 3, and the connection of B pieces 3 is in groove-like structure.The B pieces 3 of groove-like, in its groove
Two folding parts 6 of body are in circular arc, and arc angle scope is generally in the range of 5 °~180 °, are 30 ° in the present embodiment.The thickness of B pieces 3
D and surface area S is adjustable by formula 1 and formula 2,
The heat that wherein Q absorbs when being metal molten, CMetalFor the specific heat of metal, S is the sectional area of metal, TIt is moltenFor the molten of metal
Point, T0For the original temperature of metal, ρ is the density of metal.
Q=I2Rt (formula 2)
The heat that wherein Q absorbs when being metal melt, I is blowout current, and R is metallic resistance, and t is fusing time.By public affairs
Formula 2 substitutes into formula 1 and can obtained
Concrete example：It it is 1083.4 DEG C according to the fusing-off temperature of copper, the density of copper is 8.92*103kg/m3, the specific heat of copper is
0.386*103J/kg DEG C, blowout current 500A is set, resistance is 1.5m Ω, it is assumed that area S is 1cm2, fusing time is set to
5s, original temperature is 25 DEG C, and connection sheet thickness d can be calculated for 5.145mm by formula (4).
Connection sheet body 1 can be spliced and combined parallel according to actual needs in addition.
Claims (5)
1. a kind of lithium ion battery insures connection sheet, it is characterised in that：Including connection sheet body, connection sheet body two ends are conducts
The A pieces of battery terminal connection end, the centre of connection sheet body is C pieces, is connected between A pieces and C pieces by the B pieces of fluted body；Institute
State A piece central apertures.
2. a kind of lithium ion battery insurance connection sheet as claimed in claim 1, it is characterised in that：The B pieces of the fluted body, its
Cell body folding part is in circular arc, and arc angle scope is 5 °~180 °.
3. a kind of lithium ion battery insurance connection sheet as claimed in claim 1 or 2, it is characterised in that：The thickness of described B pieces
D and surface area S is adjustable by formula 1 and formula 2,
The heat that wherein Q absorbs when being metal molten, CMetalFor the specific heat of metal, S is the sectional area of metal, TIt is moltenFor the molten of metal
Point, T0For the original temperature of metal, ρ is the density of metal；
Q=I2Rt (formula 2)
The heat that wherein Q absorbs when being metal melt, I is blowout current, and R is metallic resistance, and t is fusing time；
Formula 2 is substituted into formula 1 to obtain
4. a kind of lithium ion battery insurance connection sheet as claimed in claim 3, it is characterised in that：The thickness d of described B pieces is true
In the case of fixed, its surface area S is adjusted in B piece perforates.
5. described in a kind of lithium ion battery insurance connection sheet as claimed in claim 3, it is characterised in that：Described connection sheet sheet
Body, multi-disc is spliced and combined parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720234825.9U CN206610860U (en) | 2017-03-10 | 2017-03-10 | A kind of lithium ion battery insures connection sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720234825.9U CN206610860U (en) | 2017-03-10 | 2017-03-10 | A kind of lithium ion battery insures connection sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206610860U true CN206610860U (en) | 2017-11-03 |
Family
ID=60166473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720234825.9U Expired - Fee Related CN206610860U (en) | 2017-03-10 | 2017-03-10 | A kind of lithium ion battery insures connection sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206610860U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037572A (en) * | 2018-07-26 | 2018-12-18 | 东莞市中质电子科技有限公司 | A kind of new energy battery modules conduction connecting structure |
| CN109037569A (en) * | 2018-07-26 | 2018-12-18 | 东莞市中质电子科技有限公司 | A kind of new energy battery modules electric connection structure |
| WO2019184494A1 (en) * | 2018-03-30 | 2019-10-03 | 宁德时代新能源科技股份有限公司 | Electrical connection component and battery module |
-
2017
- 2017-03-10 CN CN201720234825.9U patent/CN206610860U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184494A1 (en) * | 2018-03-30 | 2019-10-03 | 宁德时代新能源科技股份有限公司 | Electrical connection component and battery module |
| CN109037572A (en) * | 2018-07-26 | 2018-12-18 | 东莞市中质电子科技有限公司 | A kind of new energy battery modules conduction connecting structure |
| CN109037569A (en) * | 2018-07-26 | 2018-12-18 | 东莞市中质电子科技有限公司 | A kind of new energy battery modules electric connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20200310 |