CN208986073U - A kind of half-headed extremely thin type cylindrical lithium battery nut cap - Google Patents
A kind of half-headed extremely thin type cylindrical lithium battery nut cap Download PDFInfo
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- CN208986073U CN208986073U CN201821682223.0U CN201821682223U CN208986073U CN 208986073 U CN208986073 U CN 208986073U CN 201821682223 U CN201821682223 U CN 201821682223U CN 208986073 U CN208986073 U CN 208986073U
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- Prior art keywords
- orifice plate
- lithium battery
- headed
- rupture disk
- extremely thin
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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 discloses a kind of half-headed extremely thin type cylindrical lithium battery nut caps, it successively include orifice plate, insulated ring, explosion rupture disk and sealing ring, the centre of the insulated ring is equipped with a through-hole, the explosion rupture disk is equipped with a boss, and the boss is welded by set through-hole on the insulated ring and the orifice plate.Changed by structure, so that original nut cap integral thickness drops to 1.90mm, Bao Liao 45% from 3.45mm, is the useful space of the mostly reserved 1.55mm of battery core, is that the battery of equal unit volume increases volume space.Compared with prior art, in terms of production technology, number of parts is reduced, originally there is design of cover, number of components is 5, is now 4, without top cover, this reduces packaging technology also correspondingly, there is wrapping process in prior art processes, also there is welding procedure twice, is being welded to each other for top cover, explosion rupture disk and orifice plate respectively, the present utility model application only needs once to weld, i.e. the welding of explosion rupture disk and orifice plate.
Description
Technical field
The utility model relates to dynamic lithium battery field more particularly to a kind of half-headed extremely thin type cylindrical lithium battery lids
Cap.
Background technique
Lithium battery cap is called safety valve, is the security component of dynamic lithium battery, and structure includes top cover, orifice plate, insulation
Circle, sealing ring and explosion rupture disk etc., as a kind of dynamic lithium battery explosion-proof cap component of patent application 20171065000616,
The patent applications such as 2018101875827- power lithium battery cap and a kind of lithium battery cap component of 2018101875579-, no matter
How structure changes, but it includes basic structural components be identical aforementioned structure component.
Above-mentioned traditional lithium battery cap exists as following drawbacks:
(1) whole thicker, occupy steel shell stored energy capacitance；
(2) technique welding times are twice, when easy burn-through, especially explosion rupture disk and top cover weld, using material difference, heat
Difference of coefficients leads to the presence of phenomena such as " burn-through " " fried fire ", and technology difficulty is big.
Therefore, it is necessary to design better lithium battery cap.
Utility model content
The utility model relates to a kind of half-headed extremely thin type cylindrical lithium battery nut caps, solve the above problem, pass through knot
Structure changes, so that original nut cap integral thickness drops to 1.90mm, Bao Liao 45%. from 3.45mm, it is the mostly reserved 1.55mm of battery core
The useful space, be equal unit volume battery increase volume space.
For this purpose, the utility model uses following technical scheme:
A kind of half-headed extremely thin type cylindrical lithium battery nut cap, which is characterized in that successively include orifice plate, insulated ring, explosion-proof
Piece and sealing ring, the centre of the insulated ring are equipped with a through-hole, and the explosion rupture disk is equipped with a boss, and the boss passes through described exhausted
Set through-hole is mutually welded with the orifice plate on edge circle.
Further, the explosion rupture disk is equipped with for the insulated ring to be snapped in the explosion rupture disk round bulge loop,
The radius of the bulge loop and the radius of the insulated ring match.
Further, the bulge loop has angle outward, which is set as 30 °~75 °.
Further, the orifice plate is equipped with circular weld part, which is set as the circle towards the boss side
Connected in star structure.
Further, the orifice plate is equipped with reserved side, and the insulated ring is equipped with the bound edge for holding orifice plate, the packet
It is matched while with described reserved so that the orifice plate is stuck in the insulated ring.
Further, the orifice plate is a slab construction.
Further, the orifice plate is made with the explosion rupture disk of aluminum material.
Further, the explosion rupture disk is equipped with explosion-proof groove.
Further, the sealing ring is equipped with air hole.
The utility model has the following beneficial effects:
(1) compared with prior art, structurally, the utility model eliminates cap structure, the prior art it is explosion-proof
Piece integral thickness is in 3.45mm or so, and the integral thickness of the utility model drops to 1.90mm, Bao Liao 45%.
(2) compared with prior art, thinned nut cap can be the useful space of the mostly reserved 1.55mm of battery core, be same single
The battery of position volume increases volume space.
(3) compared with prior art, existing 1.12 grams or so are dropped to for 1.75 grams or so of weight originally, weight reduces
At least 30%, improve the gravimetric density ratio of battery.
(4) compared with prior art, in terms of production technology, number of parts is reduced, and has design of cover originally, number of components is
5, be now 4, and without top cover, this reduces packaging technology also correspondingly, has wrapping process in prior art processes, also has
Welding procedure twice is being welded to each other for top cover, explosion rupture disk and orifice plate respectively, and the present utility model application only needs once to weld,
That is the welding of explosion rupture disk and orifice plate.Meanwhile welding equipment investment is reduced, the prior art needs 2 laser machines, and the application only needs
A laser machine is wanted, only retains the lap welding between orifice plate and explosion rupture disk, has saved a laser machine.
(5) compared with prior art, without design of cover, also with regard to reducing environmental pollution without being electroplated.
(6) compared with prior art, explosion rupture disk is equipped with circular boss, and weld thickeies, and prevented laser burn-through can
It can property.
(7) compared with prior art, the application internal resistance is smaller, only aluminium-aluminium connection, connects without aluminium-iron, reduces electricity
Pond fever, reduces energy loss.
Detailed description of the invention
Fig. 1 is a kind of overall structure exploded view of half-headed extremely thin type cylindrical lithium battery nut cap of the utility model；
Fig. 2 is a kind of structure chart of half-headed extremely thin type cylindrical lithium battery nut cap of the utility model；
Fig. 3 is a kind of cut away view of half-headed extremely thin type cylindrical lithium battery nut cap of the utility model.
In figure: 1- orifice plate；2- insulated ring；3- explosion rupture disk；4- sealing ring；11- weld part；12- reserves bound edge；21- is logical
Hole；22- bound edge；31- boss；32- bulge loop；The explosion-proof groove of 33-；41- air hole.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
As shown in Figures 1 to 3, a kind of half-headed extremely thin type cylindrical lithium battery nut cap, successively include orifice plate 1, insulated ring 2,
Explosion rupture disk 3 and sealing ring 4, the centre of insulated ring 2 are equipped with a through-hole 21, and explosion rupture disk 3 is equipped with a boss 31, and boss 31 passes through insulation
Set through-hole 21 is welded with 1 phase of orifice plate on circle.In the present embodiment, boss 31 is a truncated cone-shaped structure, the height of boss 31
Degree can pass through the through-hole 21 on insulated ring 2 and contact with orifice plate 1, and orifice plate 1 is equipped with a weld part 11, weld part 11 and boss
31 is corresponding, is set as round, and thickness is thin compared with orifice plate, is groove type structure of the depth direction towards 31 side of boss.
In the present embodiment, explosion rupture disk 3 is equipped with for insulated ring 2 to be snapped in the round bulge loop 32 in explosion rupture disk 3, convex
The radius of ring 32 and the radius of insulated ring 2 match.Bulge loop 32 is to be raised in the one of 3 surface of explosion rupture disk to have the one of snap effect
Insulated ring when prepackage, can be buckled in explosion rupture disk, prevent from loosening, so that welding position is accurate by circular rings.Further,
Bulge loop 32 has angle outward, which is set as 30 °~75 °.Since insulated ring 2 adopts made of plastic, the setting of bulge loop 32
When certain angle makes holding, there can be the active force held tightly to 2 side of insulated ring, so that buckle is stronger.More into
One step, in order to which pre-assembled is convenient, the bound edge 22 for holding orifice plate 1 is equipped on insulated ring 2, correspondingly, on orifice plate 1
Equipped with reserved side 12.In this way after pre-assembled, welding can further prevent the loosening of three, in conjunction with firm compact.
For further reduced thickness, in the present embodiment, orifice plate 1 is set as a slab construction.
In order to weld consistency, orifice plate 1 and explosion rupture disk 3 are made of aluminum.Material is identical, and hot coefficient is identical, when welding, is easy to
It welds, fire will not be fried.
In the present embodiment, explosion rupture disk 3 is equipped with the explosion-proof groove 33 of annular.
In the present embodiment, sealing ring 4 is equipped with several air holes 41.
Technical principle of the utility model has been described above with reference to specific embodiments.These descriptions are intended merely to explain this reality
With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein,
Those skilled in the art, which does not need to pay for creative labor, can associate with other specific implementation modes of this utility model,
These modes are fallen within the protection scope of the utility model.
Claims (9)
1. a kind of half-headed extremely thin type cylindrical lithium battery nut cap, which is characterized in that successively include orifice plate (1), insulated ring (2),
The centre of explosion rupture disk (3) and sealing ring (4), the insulated ring (2) is equipped with a through-hole (21), and it is convex that the explosion rupture disk (3) is equipped with one
Platform (31), the boss (31) are mutually welded by the through-hole (21) set on the insulated ring (2) with the orifice plate (1)
It connects.
2. a kind of half-headed extremely thin type cylindrical lithium battery nut cap as described in claim 1, which is characterized in that the explosion rupture disk
(3) it is equipped with for the insulated ring (2) to be snapped on the explosion rupture disk (3) round bulge loop (32), the bulge loop (32)
Radius and the radius of the insulated ring (2) match.
3. a kind of half-headed extremely thin type cylindrical lithium battery nut cap as claimed in claim 2, which is characterized in that the bulge loop
(32) there is angle outward, which is set as 30 °~75 °.
4. a kind of half-headed extremely thin type cylindrical lithium battery nut cap as claimed in claim 2, which is characterized in that the orifice plate
(1) circular weld part (11) are equipped with, which is set as the circular groove structure towards the boss (31) side.
5. a kind of half-headed extremely thin type cylindrical lithium battery nut cap as claimed in claim 2, which is characterized in that the orifice plate
(1) it is equipped with reserved side (12), the insulated ring (2) is equipped with the bound edge (22) for orifice plate (1) described in holding, the bound edge
(22) it is matched with the reserved side (12) so that the orifice plate (1) is stuck in the insulated ring (2).
6. a kind of half-headed extremely thin type cylindrical lithium battery nut cap as claimed in claim 2, which is characterized in that the orifice plate
It (1) is a slab construction.
7. a kind of half-headed extremely thin type cylindrical lithium battery nut cap as claimed in claim 2, which is characterized in that the orifice plate
(1) it is made with the explosion rupture disk (3) of aluminum material.
8. a kind of half-headed extremely thin type cylindrical lithium battery nut cap as claimed in claim 2, which is characterized in that the explosion rupture disk
(3) it is equipped with the explosion-proof groove (33) of annular.
9. a kind of half-headed extremely thin type cylindrical lithium battery nut cap as claimed in claim 2, which is characterized in that the sealing ring
(4) air hole (41) are equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682223.0U CN208986073U (en) | 2018-10-17 | 2018-10-17 | A kind of half-headed extremely thin type cylindrical lithium battery nut cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821682223.0U CN208986073U (en) | 2018-10-17 | 2018-10-17 | A kind of half-headed extremely thin type cylindrical lithium battery nut cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208986073U true CN208986073U (en) | 2019-06-14 |
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ID=66787872
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821682223.0U Active CN208986073U (en) | 2018-10-17 | 2018-10-17 | A kind of half-headed extremely thin type cylindrical lithium battery nut cap |
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| CN (1) | CN208986073U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256513A (en) * | 2018-10-17 | 2019-01-22 | 江苏镭腾能源科技有限公司 | A kind of half-headed extremely thin type cylindrical lithium battery nut cap |
| CN110890483A (en) * | 2019-11-29 | 2020-03-17 | 安徽江淮汽车集团股份有限公司 | Cylinder battery with novel structure |
| CN110919348A (en) * | 2019-11-29 | 2020-03-27 | 孙广静 | A transfer device for lithium cell block equipment |
| WO2022088829A1 (en) * | 2020-10-29 | 2022-05-05 | 深圳市比克动力电池有限公司 | Novel cylindrical lithium battery cap and novel cylindrical lithium battery |
-
2018
- 2018-10-17 CN CN201821682223.0U patent/CN208986073U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256513A (en) * | 2018-10-17 | 2019-01-22 | 江苏镭腾能源科技有限公司 | A kind of half-headed extremely thin type cylindrical lithium battery nut cap |
| CN110890483A (en) * | 2019-11-29 | 2020-03-17 | 安徽江淮汽车集团股份有限公司 | Cylinder battery with novel structure |
| CN110919348A (en) * | 2019-11-29 | 2020-03-27 | 孙广静 | A transfer device for lithium cell block equipment |
| WO2022088829A1 (en) * | 2020-10-29 | 2022-05-05 | 深圳市比克动力电池有限公司 | Novel cylindrical lithium battery cap and novel cylindrical lithium battery |
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