CN207038560U - A kind of button lithium cell sealing structure - Google Patents
A kind of button lithium cell sealing structure Download PDFInfo
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- CN207038560U CN207038560U CN201720724542.2U CN201720724542U CN207038560U CN 207038560 U CN207038560 U CN 207038560U CN 201720724542 U CN201720724542 U CN 201720724542U CN 207038560 U CN207038560 U CN 207038560U
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- sealing
- sealing strip
- bound edge
- lithium cell
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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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- 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
The utility model discloses a kind of button lithium cell sealing structure, and button lithium cell sealing structure includes battery core lid, sealing ring and electric core shell.Battery core lid has binding structure, and binding structure forms the first bound edge, the second bound edge and the 3rd bound edge, and the 3rd bound edge forms lock seaming section and sealing section；Electric core shell has sealing strip structure, and sealing strip structure forms the first sealing strip, the second sealing strip, the 3rd sealing strip and the 4th sealing strip；First bound edge is mutually supported with the 4th sealing strip by sealing ring, second bound edge is mutually supported with the 3rd sealing strip by sealing ring, the lock seaming section of 3rd bound edge is mutually supported with the second sealing strip by sealing ring, and the sealing section of the 3rd bound edge is mutually supported with the first sealing strip by sealing ring.Button lithium cell sealing structure of the present utility model, binding structure to battery core lid and is optimized to the sealing strip structure of electric core shell, is prevented sealing ring to be damaged in capping processes, is ruptured and cause the phenomenon of leakage, so as to improve overall sealing.
Description
Technical field
Button lithium cell technical field is the utility model is related to, seals and ties more particularly to a kind of button lithium cell
Structure.
Background technology
As shown in figure 1, it is sectional view of traditional button lithium cell 10 before battery core sealing, traditional button lithium
Battery core 10 includes：Battery core lid 100 (as shown in Figure 3), sealing ring 200 (as shown in Figure 4), electric core shell 300 (as shown in Figure 5), volume
Core 400.The assembling process of traditional button lithium cell 10 is as follows：First, sealing ring 200 is placed on electric core shell 300；So
Afterwards, the negative electrode lug of core 400 welds with electric core shell 300, and the anode ear of core 400 welds with battery core lid 100；Then, core 400 is put
Enter in electric core shell 300, cover battery core lid 100；Finally, battery core lid 100 is sealed (as shown in Figure 2) using special equipment.
Such a button lithium cell 10 has following technical problem：Half is formed at away from the edge of opening 0.7mm of electric core shell 300
Footpath is 0.35mm housing arc groove 310, and the lid that radius is 0.5mm is formed at away from the edge of opening 1.3mm of battery core lid 100 and is justified
Arc groove 110, because the size of housing arc groove 310 and lid arc groove 110 is too small, machining accuracy it is difficult to ensure that, particularly exist
During special equipment rotary seal (as shown in Figure 2), battery core lid 100 is swung during rotary seal, housing arc groove 310 due to
Size is too small, sealing ring 200 is cut to as cutting knife, therefore sealing ring 200 is easy to be damaged, ruptured, and causes leakage so that this
Kind button lithium cell 10 is directly scrapped.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art, there is provided a kind of button lithium cell sealing knot
Structure, prevent sealing ring to be damaged in capping processes, rupture and cause the phenomenon of leakage, so as to improve overall sealing.
The purpose of this utility model is achieved through the following technical solutions：
A kind of button lithium cell sealing structure, including：Battery core lid, sealing ring, electric core shell；
The battery core lid has a binding structure, and the binding structure, which is formed, is sequentially connected the first bound edge, the second bound edge and the
Three bound edges, the 3rd bound edge form lock seaming section and sealing section, and first bound edge is cylindrical side structure, second bound edge
For conical side surface structure, the lock seaming section is cylindrical side structure, and the sealing section is conical side surface structure；
The electric core shell has sealing strip structure, and the sealing strip structure forms the first sealing strip being sequentially connected, second
Sealing strip, the 3rd sealing strip and the 4th sealing strip, first sealing strip and the 3rd sealing strip are conical side surface structure,
Second sealing strip and the 4th sealing strip are cylindrical side structure；
First bound edge is mutually supported with the 4th sealing strip by the sealing ring, second bound edge with it is described
3rd sealing strip is mutually supported by the sealing ring, and lock seaming section and second sealing strip of the 3rd bound edge pass through described
Sealing ring is mutually supported, and sealing section and first sealing strip of the 3rd bound edge are mutually supported by the sealing ring.
In one of the embodiments, in addition to core, the core are contained in the battery core lid and the electric core shell institute
In the seal cavity of formation.
In one of the embodiments, the battery core lid is the hollow cylindrical body structure of one end open one end closing.
In one of the embodiments, the electric core shell is the hollow cylindrical body structure of one end open one end closing.
A kind of button lithium cell sealing structure of the present utility model, it is special by setting battery core lid, sealing ring, electric core shell
It is not that the binding structure to battery core lid and the sealing strip structure to electric core shell optimize, prevents sealing ring in capping processes
It is damaged, ruptures and cause the phenomenon of leakage, so as to improves overall sealing.
Brief description of the drawings
Fig. 1 is sectional view of traditional button lithium cell before sealing；
Fig. 2 is sectional view of traditional button lithium cell after sealing；
Fig. 3 is the sectional view of the battery core lid of traditional button lithium cell shown in Fig. 1；
Fig. 4 is the sectional view of the sealing ring of traditional button lithium cell shown in Fig. 1；
Fig. 5 is the sectional view of the electric core shell of traditional button lithium cell shown in Fig. 1；
Fig. 6 is sectional view of the button lithium cell sealing structure of the embodiment of the utility model one before sealing；
Fig. 7 is sectional view of the button lithium cell sealing structure of the embodiment of the utility model one after sealing；
Fig. 8 is the sectional view of the battery core lid of the button lithium cell sealing structure shown in Fig. 6；
Fig. 9 is the sectional view of the sealing ring of the button lithium cell sealing structure shown in Fig. 6；
Figure 10 is the sectional view of the electric core shell of the button lithium cell sealing structure shown in Fig. 6.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.But the utility model can come in many different forms
Realize, however it is not limited to embodiments described herein.On the contrary, the purpose for providing these embodiments is to make to this practicality newly
The more thorough and comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all combination of the Listed Items of one or more correlations.
As shown in FIG. 6 and 7, a kind of button lithium cell sealing structure 20, including：Battery core lid 500, sealing ring 600, electricity
Core shell 700.In the present embodiment, battery core lid 500 and electric core shell 700 are the hollow cylindrical body knot of one end open one end closing
Structure.Further, button lithium cell sealing structure 20 also includes core 800, and core 800 is contained in battery core lid 500 and battery core
In the seal cavity that shell 700 is formed.
As shown in figure 8, battery core lid 500 has binding structure 510, binding structure 510 forms and is sequentially connected the first bound edge
511st, the second bound edge 512 and the 3rd bound edge 513, the 3rd bound edge 513 form lock seaming section 513a and sealing section 513b, the first bound edge
511 be cylindrical side structure, and the second bound edge 512 is conical side surface structure, and lock seaming section 513a is cylindrical side structure, seals section
513b is conical side surface structure.
As shown in Figure 10, electric core shell 700 has sealing strip structure 710, and sealing strip structure 710 forms first be sequentially connected
Sealing strip 711, the second sealing strip 712, the 3rd sealing strip 713 and the 4th sealing strip 714, the first sealing strip 711 and the 3rd sealing
Side 713 is conical side surface structure, and the second sealing strip 712 and the 4th sealing strip 714 are cylindrical side structure.
First bound edge 511 is mutually supported with the 4th sealing strip 714 by sealing ring 600, the second bound edge 512 and the 3rd sealing
Side 713 is mutually supported by sealing ring 600, and the lock seaming section 513a of the 3rd bound edge 513 and the second sealing strip 712 pass through sealing ring
600 are mutually supported, and the sealing section 513b of the 3rd bound edge 513 is mutually supported with the first sealing strip 711 by sealing ring 600.
It is noted that binding structure 510 has the first bound edge 511, the second bound edge 512 and the 3rd bound edge being sequentially connected
513, the 3rd bound edge 513 forms lock seaming section 513a and sealing section 513b, and sealing strip structure 710 has the first sealing being sequentially connected
Side 711, the second sealing strip 712, the 3rd sealing strip 713 and the 4th sealing strip 714, battery core lid 500 is being covered on electric core shell 700
When upper, the first bound edge 511 mutually supports with the 4th sealing strip 714, and the second bound edge 512 mutually supports with the 3rd sealing strip 713, the
The lock seaming section 513a of three bound edges 513 supports with the second sealing strip 712, the sealing section 513b and the first sealing strip of the 3rd bound edge 513
711 support, and so as to which the sealing ring 600 between binding structure 510 and sealing strip structure 710 be compressed, realize sealing.
As shown in figure 9, the structure of sealing ring 600 forms the primary sealing area 610 being sequentially connected, secondary sealing area 620, the
Three sealing surfaces 630, the 4th sealing surface 640, the sealing surface 630 of primary sealing area 610 and the 3rd is cylindrical side structure, and second is close
The sealing surface 640 of front cover 620 and the 4th is conical side surface structure.Specifically, primary sealing area 610 is squeezed in the first bound edge 511
Between the 4th sealing strip 714, secondary sealing area 620 is squeezed between the second bound edge 512 and the 3rd sealing strip 713, and the 3rd is close
Front cover 630 is squeezed between the lock seaming section 513a and the second sealing strip 712 of the 3rd bound edge 513, and the 4th sealing surface 640 is squeezed in
Between the sealing section 513b of three bound edges 513 and the first sealing strip 711.
It is noted that the second bound edge 512 forms positive and negative two-way circle with sealing section 513b when crimping shrinks and sealed
Link closely sealing structure (as shown in Figure 8) for cone side, and accordingly, the first sealing strip 711 also form positive and negative with the 3rd sealing strip 713
Two-way conical side surface links closely sealing structure (as shown in Figure 10), and such a structure serves more effective positioning action, reduced
Sealing section 513b is carrying out rotating the swing during crimping shrinks capping processes, and prior, positive and negative two-way conical side surface links closely
Sealing structure deforms sealing ring 600, plays more effective sealing function, while also improve battery core by crush seal circle 600
The fastening stability of shell 500, sealing ring 600 and battery core lid 700.
Binding structure 510, which has, is sequentially connected the first bound edge 511, the second bound edge 512 and the 3rd bound edge 513, the first bound edge
511st, uneven structure is formed between the second bound edge 512 and the 3rd bound edge 513, meanwhile, sealing strip structure 710 has to be connected successively
The first sealing strip 711, the second sealing strip 712, the 3rd sealing strip 713 and the 4th sealing strip 714 connect, the first sealing strip 711,
Two sealing strips 712, the 3rd sealing strip 713 and the 4th sealing strip 714 also form uneven structure, and sealing ring 600 is pressed
When between binding structure 510 and sealing strip structure 710, due to the presence of uneven structure so that same uneven knot
The sealing ring 600 of structure more preferably contacts with battery cover 500 and electric core shell 700, and sealing area is bigger, and sealing is more preferable.Uneven knot
The sealing ring 600 of structure design improves the air-tightness between binding structure 510 and sealing strip structure 710, prevents the phenomenon of leakage
Occur.
The uneven structure formed between first bound edge 511, the second bound edge 512 and the 3rd bound edge 513 and the first sealing
The uneven structure that side 711, the second sealing strip 712, the 3rd sealing strip 713 and the 4th sealing strip 714 are formed cooperates, convex
Play structure to be trapped in groove structure, form reciprocal latch structure so that battery core lid 500 is tightly fastened in electric core shell 700, it is not easy to
Come off, so as to improve the stability of fastening.
As shown in figure 8, further, the 3rd bound edge 513 has sealing section 513b, and battery core lid 500 is being covered on into electricity
When in core shell 700, crimping contraction (as shown in Figure 7) is carried out to the sealing section 513b of the 3rd bound edge 513 by special equipment, realized
Sealing, so as to further increase the stability of fastening.
First bound edge 511 is cylindrical side structure, and the second bound edge 512 is conical side surface structure, and lock seaming section 513a is cylinder
Side structure, sealing section 513b is conical side surface structure, and such structure is relative to traditional design for opening up arc groove, bound edge
Structure 510 will not produce sharp cutter-type projection, and similarly, sealing strip structure 710 will not similarly produce sharp cutting knife
The problem of formula is raised, will not thus be damaged to sealing ring 600, and sealing ring 600 will not be damaged, rupture, is being assembled
Final stage, the sealing section 513b of the 3rd bound edge 513 is carried out by crimping contraction using special equipment, just realizes fixation.I.e.
Sealing section 513b is cut sealing ring 600 during crimping shrinks, also only affect the micro- of the back segment of sealing ring 600
Fraction, serious influence can't be caused to overall.
Further it is noted that sealing ring 600, which has, protrudes from binding structure 510 and the junction of sealing strip structure 710
Protruding end 650 (as shown in Figure 7), more effectively prevent electric core shell 500 and battery core lid 700 contact caused by battery core short circuit occur.
It should also be noted that sealing ring 600 also has pre-determined bit ring structure 660, the resilient sleeve of pre-determined bit ring structure 660 is located at
One end of 4th sealing strip 714.By setting pre-determined bit ring structure 660, for pre-fixing to sealing ring 600, i.e. sealing ring
600 are sheathed on one end of the 4th sealing strip 714 of electric core shell 700 by pre-determined bit ring structure 660, so as to prevent sealing ring 600
Come off, being covered on electric core shell 700 for follow-up battery core lid 500 realizes that stabilized seal is got ready.
Meanwhile also provide a kind of button lithium cell sealing side obtained using above-mentioned button lithium cell sealing structure 20
Method, comprise the following steps：
Sealing ring 600 is placed on electric core shell 700；
Battery core lid 500 is covered on electric core shell 700 so that the first bound edge 511 and the 4th sealing strip 714 pass through sealing ring
600 are mutually supported, and the second bound edge 512 is mutually supported with the 3rd sealing strip 713 by sealing ring 600, the lock seaming of the 3rd bound edge 513
Section 513a is mutually supported with the second sealing strip 712 by sealing ring 600；
Crimping contraction is carried out to the sealing section 513b of the 3rd bound edge 513 so that the sealing section 513b of the 3rd bound edge 513 and the
One sealing strip 711 is mutually supported by sealing ring 600.
A kind of button lithium cell sealing structure 20 of the present utility model, by setting battery core lid 500, sealing ring 600, electricity
Core shell 700, the particularly binding structure 510 to battery core lid 500 and the sealing strip structure 710 to electric core shell 700 optimize,
Prevent sealing ring 600 to be damaged in capping processes, rupture and cause the phenomenon of leakage, so as to improve overall sealing.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (4)
- A kind of 1. button lithium cell sealing structure, it is characterised in that including：Battery core lid, sealing ring, electric core shell；The battery core lid has binding structure, and the binding structure forms and is sequentially connected the first bound edge, the second bound edge and three guarantees Side, the 3rd bound edge form lock seaming section and sealing section, and first bound edge is cylindrical side structure, and second bound edge is circle Side structure is bored, the lock seaming section is cylindrical side structure, and the sealing section is conical side surface structure；The electric core shell has sealing strip structure, and the sealing strip structure forms the first sealing strip being sequentially connected, the second sealing Side, the 3rd sealing strip and the 4th sealing strip, first sealing strip and the 3rd sealing strip are conical side surface structure, described Second sealing strip and the 4th sealing strip are cylindrical side structure；First bound edge is mutually supported with the 4th sealing strip by the sealing ring, second bound edge and the described 3rd Sealing strip is mutually supported by the sealing ring, and lock seaming section and second sealing strip of the 3rd bound edge pass through the sealing Circle is mutually supported, and sealing section and first sealing strip of the 3rd bound edge are mutually supported by the sealing ring.
- 2. button lithium cell sealing structure according to claim 1, it is characterised in that also including core, the core It is contained in the seal cavity that the battery core lid is formed with the electric core shell.
- 3. button lithium cell sealing structure according to claim 1, it is characterised in that the battery core lid is one end open The hollow cylindrical body structure of one end closing.
- 4. button lithium cell sealing structure according to claim 1, it is characterised in that the electric core shell is one end open The hollow cylindrical body structure of one end closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724542.2U CN207038560U (en) | 2017-06-20 | 2017-06-20 | A kind of button lithium cell sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724542.2U CN207038560U (en) | 2017-06-20 | 2017-06-20 | A kind of button lithium cell sealing structure |
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| Publication Number | Publication Date |
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| CN207038560U true CN207038560U (en) | 2018-02-23 |
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| CN201720724542.2U Active CN207038560U (en) | 2017-06-20 | 2017-06-20 | A kind of button lithium cell sealing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425145A (en) * | 2017-06-20 | 2017-12-01 | 惠州亿纬锂能股份有限公司 | A kind of button lithium cell sealing structure and encapsulating method |
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2017
- 2017-06-20 CN CN201720724542.2U patent/CN207038560U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425145A (en) * | 2017-06-20 | 2017-12-01 | 惠州亿纬锂能股份有限公司 | A kind of button lithium cell sealing structure and encapsulating method |
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