CN206313020U - A kind of lithium battery structure - Google Patents
A kind of lithium battery structure Download PDFInfo
- Publication number
- CN206313020U CN206313020U CN201621492708.4U CN201621492708U CN206313020U CN 206313020 U CN206313020 U CN 206313020U CN 201621492708 U CN201621492708 U CN 201621492708U CN 206313020 U CN206313020 U CN 206313020U
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- China
- Prior art keywords
- connecting plate
- shell
- flexible connector
- lithium battery
- flexible member
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
A kind of lithium battery structure, including shell, the battery core, the first Flexible Connector and the second Flexible Connector that are contained in shell；Shell includes negative pole end and positive terminal；Battery core two ends are provided with positive pole ear and negative lug；First Flexible Connector includes the first connecting plate, the second connecting plate and the first flexible member between the first connecting plate and the second connecting plate；Second Flexible Connector includes the 3rd connecting plate, the 4th connecting plate and the second flexible member between the 3rd connecting plate and the 4th connecting plate；Battery core, the first Flexible Connector, the second Flexible Connector；First Flexible Connector is located at negative pole end, and a flexible member extrudes the second connecting plate makes the second connecting plate in electrical contact with negative lug；Second Flexible Connector is located at positive terminal, and two flexible members extrude the 4th connecting plate makes the 4th connecting plate in electrical contact with positive pole ear.The utility model lithium battery structure eliminates traditional welding procedure, easy to assembly, reduces manufacturing cost, improves packaging efficiency.
Description
【Technical field】
The utility model is related to cell art, more particularly to a kind of lithium battery structure.
【Background technology】
With the fast development of electrokinetic cell, electric automobile has begun to gradually occuping market, and yield expands year by year, production capacity
And quality guarantee turns into the major issue that new energy battery is faced.Existing lithium battery structure include shell, negative pole drain pan, battery core and
Positive pole cover plate.Shell is hollow cylindrical, and negative pole drain pan is one end that is circular and being contained in the shell.Prolong respectively at battery core two ends
Stretch out for conductive multiple negative lugs and multiple positive pole ears.Battery core is contained in the shell, and multiple negative lugs
Contacted with negative pole drain pan and linked together by welding manner.Positive pole ear connects with positive pole cover plate and welds together, and cover plate is again
Coordinated by block and shell and cover plate is pressed into by shell with this, cover plate is further in electrical contact with block.Current lithium battery structure
Shortcoming be：1st, the contact surface of positive pole ear and positive pole cover plate and negative lug and negative pole drain pan is pad, pad face
Product is 3.5mm2Left and right, bonding area is small, hinders current lead-through；2nd, when negative lug and negative pole drain pan are welded, worn by capillary
The SMIS of battery core is welded, and when capillary temperature is higher, can cause the diaphragm retracts of battery core, so as to cause battery short circuit, and
Weld strength is bigger than normal, is easily caused negative pole drain pan burn-through and falls paint, causes box hat to get rusty leakage；3rd, positive pole ear and negative lug are logical
It is often nickel coated copper product, the easy rosin joint of welding difficulty (i.e. not prison welding is consolidated) weld strength is less than normal, triggers the internal resistance of cell to increase, and leads
Cause battery high-temperature, cycle life poor.
【Utility model content】
The purpose of this utility model is to provide a kind of easy to assembly, electric connection stabilization and the longer lithium battery of service life
Structure.
To achieve these goals, a kind of lithium battery structure of the utility model offer, including shell, the electricity for being contained in shell
Core, the first Flexible Connector and the second Flexible Connector；The shell includes negative pole end and the positive terminal opposite with negative pole end；
The battery core two ends are respectively arranged with positive pole ear and negative lug；First Flexible Connector includes the first connecting plate, the
Two connecting plates and between the first connecting plate and the second connecting plate and it is electrically connected with the first connecting plate, the of the second connecting plate
One flexible member；Second Flexible Connector includes the 3rd connecting plate, the 4th connecting plate and positioned at the 3rd connecting plate and the
Between four connecting plates and be electrically connected with the 3rd connecting plate, the second flexible member of the 4th connecting plate；First Flexible Connector
Positioned at the negative pole end, a flexible member produces elastic force to extrude the second connecting plate makes the second connecting plate electrical with negative lug
Contact；Second Flexible Connector is located at the positive terminal, and two flexible member produces elastic force to extrude the 4th connecting plate to be made
4th connecting plate is in electrical contact with positive pole ear.
In a preferred embodiment, also including cover plate, the cover plate house in the shell and with the 3rd connecting plate
It is in electrical contact.
In a preferred embodiment, the shell is cylinder, first connecting plate and second connecting plate
It is circle, first flexible member is metal spring, and two ends connect first connecting plate and second connecting plate respectively.
In a preferred embodiment, diameter of the diameter of second connecting plate less than first connecting plate；Institute
The first flexible member is stated for volute spring, the big one end of the volute spring diameter connects first connecting plate, diameter it is small one
End connection second connecting plate, the first connecting plate is coaxially disposed with the second connecting plate.
In a preferred embodiment, the 3rd connecting plate and the 4th connecting plate are circle, second bullet
Property element be metal spring, two ends connect the 3rd connecting plate and the 4th connecting plate respectively.
In a preferred embodiment, diameter of the diameter of the 4th connecting plate less than the 3rd connecting plate；Institute
The second flexible member is stated for volute spring, the big one end of the volute spring diameter connects the 3rd connecting plate, diameter it is small one
End connection the 4th connecting plate, the 3rd connecting plate is coaxially disposed with the 4th connecting plate.
In a preferred embodiment, shell has a groove near the position of positive terminal.
The utility model lithium battery structure presses against battery core using the first Flexible Connector and the second Flexible Connector, just
Pole lug, negative lug respectively with the 4th connecting plate, the second connecting plate face contact, contact area is big, is electrically connected with stabilization, saves
Traditional welding procedure has been gone, it is easy to assembly, manufacturing cost is reduced, improve packaging efficiency.
【Brief description of the drawings】
Fig. 1 is the three-dimensional exploded view of lithium battery structure of the present utility model.
Fig. 2 is the three-dimensional exploded view of another angle of the lithium battery structure shown in Fig. 1.
Fig. 3 is the combination diagram of the lithium battery structure shown in Fig. 2.
【Specific embodiment】
In order that the purpose of this utility model, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with attached
Figure and specific embodiment, are further elaborated to the utility model.It should be appreciated that described in this specification
Specific embodiment is not intended to limit the utility model just for the sake of explaining the utility model.
As shown in Figures 1 to 3, a kind of lithium battery structure 100 that the utility model is provided, including shell 10, battery core 20, first
Flexible Connector 30, the second Flexible Connector 40 and cover plate 50.
The shell 10 is made up of metal material, and for example steel are made.The shell 10 is for hollow cylindrical and including negative
Extreme 101 and the positive terminal 102 opposite with negative pole end 101.
The battery core 20 for cylindric, its by the aluminium foil that is coated with positive electrode, the Copper Foil for being coated with negative material with
And the barrier film (not shown) winding for insulation between aluminium foil and Copper Foil is formed.The two ends of the battery core 20 are respectively arranged with
Positive pole ear 201 and negative lug 202 that metal material such as copper or tweezer coated copper are made.The positive pole ear 201 and negative pole
Lug 202 is used to transmit electric current.
First Flexible Connector 30 includes the first connecting plate 301, the second connecting plate 302 and positioned at the first connecting plate
301 and second between connecting plate 302 and it is electrically connected with the first connecting plate 301, the first flexible member 303 of the second connecting plate 302.
First connecting plate 301, the second connecting plate 302 and the first flexible member 303 are made of electrically conductive material.Described first connects
The shape of fishplate bar 301 corresponds to the shape of the negative pole end 101 of the shell 10.In present embodiment, first connecting plate 301
For circular and be made of copper.Second connecting plate 302 is made by circle and by steel, the diameter of second connecting plate 302
Less than the diameter of first connecting plate 301.First elastic component 303 is metal spring, and its two ends connects described the respectively
One connecting plate 301 and second connecting plate 302.More specifically, first flexible member 303 is volute spring, Conical Projectile
The big one end of spring diameter connects first connecting plate 301, and the small one end of diameter connects second connecting plate 302, and first connects
Fishplate bar 301 is coaxially disposed with the second connecting plate 302.In other embodiments, first flexible member 303 can be leaf spring
Or other structures.
Second Flexible Connector 40 includes the 3rd connecting plate 401, the 4th connecting plate 402 and positioned at the 3rd connecting plate
401 and the 4th between connecting plate 402 and it is electrically connected with the 3rd connecting plate 401, the second flexible member 403 of the 4th connecting plate 402.
3rd connecting plate 401, the 4th connecting plate 402 and the second flexible member 403 are made of electrically conductive material.Described 3rd connects
The shape of fishplate bar 401 corresponds to the shape of the positive terminal 102 of the shell 10.In present embodiment, the 3rd connecting plate 401
For circular and be made of copper.4th connecting plate 402 is made by circle and by steel, the diameter of the 4th connecting plate 402
Less than the diameter of the 3rd connecting plate 401.Second elastic component 403 is metal spring, and its two ends connects described the respectively
Three connecting plates 401 and the 4th connecting plate 402.More specifically, second flexible member 403 is volute spring, the taper
The big one end of spring diameter connects the 3rd connecting plate 401, and the small one end of diameter connects the 4th connecting plate 402, the 3rd
Connecting plate 401 is coaxially disposed with the 4th connecting plate 402.Second flexible member 403 can be leaf spring or other structures.In order to
It is easy to manufacture, the second Flexible Connector 40 is identical with the structure of first Flexible Connector 30 described in present embodiment.
In other embodiment, second Flexible Connector 40 can also be differed with the structure of first Flexible Connector 30.
The cover plate 50 is made up of metal material, and in present embodiment, the cover plate 50 is circle.
During assembling, the first Flexible Connector 30 is loaded in the shell 10 and the negative pole end 101, wherein institute is located at
State the first connecting plate 301 and be closer to the negative pole end 101 relative to the second connecting plate 302, then battery core 20 is loaded described outer
In shell 10, negative lug 202 is in electrical contact with the second connecting plate 302；In order to prevent battery core 20 from being come off from shell, battery core is loaded
Go out a groove 103 near the position roll-in of positive terminal 102 in shell 10 after shell 20；Then the second Flexible Connector 40 is loaded
In the shell 10 and positioned at the positive terminal 102, wherein the 3rd connecting plate 401 is relative to the 4th connecting plate 402 more
Close to the positive terminal 102, positive pole ear 201 is in electrical contact with the 4th connecting plate 402；Then cover plate 50 is loaded into shell 10
Interior and positioned at positive terminal 102, the cover plate 50 is electrically connected on the 3rd connecting plate 401.Distinguish at the two ends of the battery core 20
Pressed against by the first Flexible Connector 30 and the second Flexible Connector 40, produce elastic force to extrude by the first flexible member 303
Second connecting plate 302 makes the second connecting plate 302 in electrical contact with what negative lug 202 was consolidated；Produced by the second flexible member 403
Raw elastic force extrudes the 4th connecting plate 402 makes the 4th connecting plate 402 in electrical contact with what positive pole ear 201 was consolidated.The cover plate 50
Can be placed directly on the 3rd connecting plate 401 and cover plate 50 is fixed in shell by block (not shown) again, that is, cover
Plate 50 is held between the 3rd connecting plate 401 and block and in electrical contact with the 3rd connecting plate 401 and block respectively.
First connecting plate 301 may act as the negative pole of the lithium battery structure.
In other embodiments, the lithium battery structure 100 can also not need cover plate 50, the 3rd connecting plate
401 are directly electrically connected with block.
The utility model lithium battery structure presses against battery core using the first Flexible Connector and the second Flexible Connector, just
Pole lug, negative lug respectively with the 4th connecting plate, the second connecting plate face contact, contact area is big, is electrically connected with stabilization, saves
Traditional welding procedure has been gone, it is easy to assembly, manufacturing cost is reduced, improve packaging efficiency.
The utility model is not restricted to described in specification and implementation method, therefore for the personnel of familiar field
For be easily achieved additional advantage and modification, therefore in the universal limited without departing substantially from claim and equivalency range
Spirit and scope in the case of, the utility model be not limited to specific details, representational equipment and shown here as with retouch
The examples shown stated.
Claims (7)
1. a kind of lithium battery structure, it is characterised in that：Including shell, the battery core for being contained in shell, the first Flexible Connector and
Second Flexible Connector；The shell includes negative pole end and the positive terminal opposite with negative pole end；The battery core two ends are respectively provided with
There are positive pole ear and negative lug；First Flexible Connector includes the first connecting plate, the second connecting plate and positioned at first
Between connecting plate and the second connecting plate and be electrically connected with the first connecting plate, the first flexible member of the second connecting plate；Described second
Flexible Connector is including the 3rd connecting plate, the 4th connecting plate and between the 3rd connecting plate and the 4th connecting plate and electrically connects
Connect the 3rd connecting plate, the second flexible member of the 4th connecting plate；First Flexible Connector is located at the negative pole end, described one
Flexible member produces elastic force to extrude the second connecting plate makes the second connecting plate in electrical contact with negative lug；Second elastic connection
Part is located at the positive terminal, and two flexible member produces elastic force to extrude the 4th connecting plate makes the 4th connecting plate with positive pole ear electricity
Property contact.
2. lithium battery structure as claimed in claim 1, it is characterised in that：Also include cover plate, the cover plate houses the shell
It is interior and in electrical contact with the 3rd connecting plate.
3. lithium battery structure as claimed in claim 2, it is characterised in that：The shell is cylinder, first connecting plate
And second connecting plate is circle, first flexible member is metal spring, and two ends connect first connecting plate respectively
And second connecting plate.
4. lithium battery structure as claimed in claim 3, it is characterised in that：The diameter of second connecting plate is less than described first
The diameter of connecting plate；First flexible member is volute spring, and the big one end connection described first of the volute spring diameter connects
Fishplate bar, small one end of diameter connects second connecting plate, and the first connecting plate is coaxially disposed with the second connecting plate.
5. lithium battery structure as claimed in claim 3, it is characterised in that：3rd connecting plate and the 4th connecting plate are
Circle, second flexible member is metal spring, and two ends connect the 3rd connecting plate and the 4th connecting plate respectively.
6. lithium battery structure as claimed in claim 5, it is characterised in that：The diameter of the 4th connecting plate is less than the described 3rd
The diameter of connecting plate；Second flexible member is volute spring, and the big one end connection the described 3rd of the volute spring diameter connects
Fishplate bar, small one end of diameter connects the 4th connecting plate, and the 3rd connecting plate is coaxially disposed with the 4th connecting plate.
7. lithium battery structure as claimed in claim 1, it is characterised in that：Shell has a groove near the position of positive terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621492708.4U CN206313020U (en) | 2016-12-31 | 2016-12-31 | A kind of lithium battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621492708.4U CN206313020U (en) | 2016-12-31 | 2016-12-31 | A kind of lithium battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313020U true CN206313020U (en) | 2017-07-07 |
Family
ID=59247706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621492708.4U Active CN206313020U (en) | 2016-12-31 | 2016-12-31 | A kind of lithium battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206313020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364676A (en) * | 2019-07-12 | 2019-10-22 | 昆山兴能能源科技有限公司 | A kind of button lithium secondary battery |
| CN115051123A (en) * | 2022-08-11 | 2022-09-13 | 楚能新能源股份有限公司 | Full utmost point ear electricity core structure |
-
2016
- 2016-12-31 CN CN201621492708.4U patent/CN206313020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364676A (en) * | 2019-07-12 | 2019-10-22 | 昆山兴能能源科技有限公司 | A kind of button lithium secondary battery |
| CN115051123A (en) * | 2022-08-11 | 2022-09-13 | 楚能新能源股份有限公司 | Full utmost point ear electricity core structure |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180428 Granted publication date: 20170707 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210428 Granted publication date: 20170707 |
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| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210428 Granted publication date: 20170707 |
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| PP01 | Preservation of patent right |