CN208655712U - A kind of explosion-proof type battery combination block - Google Patents
A kind of explosion-proof type battery combination block Download PDFInfo
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- CN208655712U CN208655712U CN201821154123.0U CN201821154123U CN208655712U CN 208655712 U CN208655712 U CN 208655712U CN 201821154123 U CN201821154123 U CN 201821154123U CN 208655712 U CN208655712 U CN 208655712U
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- aluminium flake
- explosion
- proof
- nut cap
- edge
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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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- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a kind of explosion-proof type battery combination blocks: including explosion-proof aluminium flake, nut cap ontology, cage ring, connect aluminium flake and sealing ring, explosion-proof aluminium flake is equipped with flange, nut cap ontology is equipped with several nut cap edges and several nut cap through-holes, it connects aluminium flake center and is equipped with internal projection, edge is equipped with aluminium flake edge, several aluminium flake through-holes are equipped between aluminium flake edge and internal projection, it seals circle center and is equipped with interior circular hole, the diameter of interior circular hole is less than the diameter at aluminium flake edge, explosion-proof aluminium flake passes through flange connection cover hat brim edge, cage ring side connects explosion-proof aluminium flake, other side clamping connection aluminium flake, explosion-proof aluminium flake, nut cap ontology, cage ring and connection aluminium flake are all set in the inside of sealing ring side wall.The utility model can prevent battery core air pressure inside battery core from expanding or exploding, when battery causes internal pressure sharply to increase due to short-circuit or other reasons, CID welding between connection aluminium flake and explosion-proof aluminium flake is rushed to open, and explosion occurs for explosion-proof aluminium sector-meeting, is released air pressure inside.
Description
Technical field
The present invention relates to technical field of lithium batteries, and in particular to a kind of explosion-proof type battery combination block.
Background technique
18650 battery cores are lithium batteries more commonly used in electronic product, and battery core is often used as in the battery of laptop
It uses.Its entirety is cylinder type.
18650 battery cores use metal shell, there is certain intensity, in use, internal would generally generate certain gas
Pressure, when air pressure inside reaches it is certain when steel shell can rupture explosion, generation safety accident.So existing 18650 battery core is just
Pole is equipped with venthole, to be exhausted decompression to battery core inside, but venthole it is oversized easily cause sundries into
Enter to battery core, therefore the stomata in battery core nut cap must satisfy two adjustings, first is that the airflow channel size for exhaust
Want moderate；Two are able to the sundries for being avoided as much as the external world, moisture enters to inside battery core.
Summary of the invention
To solve deficiency in the prior art, the present invention provides a kind of explosion-proof type battery combination block, solves existing skill
18650 battery cores are vented bad, foreign matter and easily enter to technical problem inside battery core in art.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of explosion-proof type battery combination block, it is characterised in that: including explosion-proof aluminium flake, nut cap ontology, cage ring, connection aluminium
Piece and sealing ring, the explosion-proof aluminium flake are equipped with flange, and the nut cap ontology is equipped with several nut cap edges and several nut cap through-holes, institute
It states connection aluminium flake center and is equipped with internal projection, edge is equipped with aluminium flake edge, and it is logical that several aluminium flakes are equipped between aluminium flake edge and internal projection
Hole, the sealing circle center are equipped with interior circular hole, and the diameter of the interior circular hole is less than the diameter at aluminium flake edge, and the explosion-proof aluminium flake is logical
Flange connection cover hat brim edge is crossed, the cage ring side connects explosion-proof aluminium flake, and the other side is clamped aluminium flake, the explosion-proof aluminium flake, lid
Cap ontology, cage ring and connection aluminium flake are all set in the inside of sealing ring side wall.
A kind of explosion-proof type battery combination block above-mentioned, the material of the nut cap ontology is stainless steel, the cage ring with
The material of sealing ring is PBT.
A kind of explosion-proof type battery combination block above-mentioned, the quantity of the nut cap through-hole are four, four nut cap through-hole weeks
To being uniformly arranged, there are three the quantity of the aluminium flake through-hole, and three aluminium flake through-holes are uniformly distributed.
A kind of explosion-proof type battery combination block above-mentioned, the cage ring be additionally provided with it is interior along protrusion, it is described it is interior along protrusion even
Connect aluminium flake edge.
A kind of explosion-proof type battery combination block above-mentioned, the connection type between the cage ring and explosion-proof aluminium flake is glue
It connects.
A kind of explosion-proof type battery combination block above-mentioned, the interior edge of the sealing ring side wall are additionally provided with projected side wall.
Invent it is achieved the utility model has the advantages that
The present invention is able to ascend the exhaust capacity of battery core, prevents battery core air pressure inside battery core from expanding or exploding, is protecting
While demonstrate,proving exhaust performance, it can prevent external foreign matter from entering to inside battery core.
If battery core inside generate pressure, pressure can the gap between sealing ring and explosion-proof aluminium flake appear, when battery due to
When short circuit or other reasons cause internal pressure sharply to increase, pressure enters to explosion-proof aluminium flake through connecting the aluminium flake through-hole of aluminium flake,
Since the intensity of explosion-proof aluminium flake is lower than the intensity of battery case, when pressure rise to a certain degree when, connection aluminium flake and anti-
CID welding between quick-fried aluminium flake is rushed to open, and explosion occurs for explosion-proof aluminium sector-meeting, is released air pressure inside, nut cap ontology can
Prevent explosion-proof aluminium flake from collapsing out.
The present invention protrude sealing ring when will connect aluminium flake design, to tab welding in battery production, improve welding quality and
Yield.
Thus hot sealing process that the assembly method for connecting aluminium flake and cage ring moves ahead in the industry is changed to the two auto-stitching, no
Such nut cap is only realized into automatic production line, while improving production efficiency, also solves hot sealing process ruler before this
The problems such as very little consistency is poor, and product weighs wounded, and personnel's scald weighs wounded.
Detailed description of the invention
Fig. 1 is global sections figure of the present invention；
Fig. 2 is explosive view one of the present invention；
Fig. 3 is explosive view two of the present invention；
Fig. 4 is explosion-proof aluminum sheet structure figure；
Fig. 5 is the partial enlarged view of cage ring；
Fig. 6 is the partial enlarged view of sealing ring；
Fig. 7 is nut cap bulk junction composition of the present invention；
Fig. 8 is the explosion-proof process one of the present invention；
Fig. 9 is the explosion-proof process two of the present invention；
Figure 10 is the explosion-proof process three of the present invention；
The meaning of appended drawing reference: the explosion-proof aluminium flake of 1-；11- flange；2- nut cap ontology；21- nut cap edge；22- nut cap is logical
Hole；3- cage ring；Along protrusion in 31-；4- connection aluminium flake；42- internal projection；41- aluminium flake edge；43- aluminium flake through-hole；5- sealing
Circle；Circular hole in 51-；52- sealing ring side wall；521- projected side wall.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1 to Figure 3: present embodiment discloses a kind of explosion-proof type battery combination blocks, including explosion-proof aluminium flake 1, lid
Cap ontology 2, cage ring 3, connection aluminium flake 4 and sealing ring 5, explosion-proof aluminium flake 1 are equipped with flange 11, and nut cap ontology 2 is equipped with several nut caps
Edge 21 and several nut cap through-holes 22, connection 4 center of aluminium flake are equipped with internal projection 42, and edge is equipped with aluminium flake edge 41, aluminium flake edge
Several aluminium flake through-holes 43 are equipped between 41 and internal projection 42,5 center of sealing ring is equipped with interior circular hole 51, and the diameter of interior circular hole 51 is less than
The diameter at aluminium flake edge 41, for explosion-proof aluminium flake 1 by 11 connection cover hat brim of flange along 21,3 side of cage ring connects explosion-proof aluminium flake 1,
The other side is clamped explosion-proof aluminium flake 4, and explosion-proof aluminium flake 1, nut cap ontology 2, cage ring 3 and connection aluminium flake 4 are all set in sealing ring side wall
52 inside.There are three the quantity of aluminium flake through-hole 43, and three aluminium flake through-holes 43 are uniformly divided centered on the center for connecting aluminium flake 4
Cloth.
The preferred stainless steel of material of the present embodiment nut cap ontology 2, the material preferred PBT, PBT of cage ring 3 and sealing ring 5
Material is easy to fire-retardant, has excellent mechanical performance and electric property, volume resistivity and dielectric strength are high, and arc resistance is excellent
Good, hygroscopicity is minimum, under moist and hot environment, is also able to maintain electric performance stablity, is the ideal for manufacturing electronics, electric parts
Material.
As shown in Figure 7: the quantity of the nut cap through-hole 22 of the present embodiment is four, and four nut cap through-holes 22 are circumferential uniformly to be set
It sets.
In conjunction with Fig. 3 and Fig. 5: the cage ring 3 of the present embodiment be additionally provided with it is interior along protrusion 31, it is interior along protrusion 31 connect aluminium flake edge
41。
Connection type between cage ring 3 and explosion-proof aluminium flake 1 is to be glued.
In conjunction with Fig. 3 and Fig. 6: the interior edge of sealing ring side wall 52 is additionally provided with projected side wall 521.
The present embodiment also discloses the manufacture craft of above-mentioned explosion-proof type battery combination block, is said one by one now in conjunction with attached drawing
It is bright:
Nut cap ontology 2 is placed in the inside of explosion-proof aluminium flake 1 first, then by the inside turnup of flange 11 and touches nut cap
Ontology 2；Original state of explosion-proof aluminium flake 1 is shown in Fig. 4 during this, and the state after the inside turnup of flange 11 is shown in Fig. 3.
Then it carries out flange 11 and nut cap ontology 2 to be welded to form nut cap aluminium flake component；Welding manner in S2 is laser
Welding.There are two the solder joints 201 of the present embodiment, and two solder joints 201 are distributed with the central symmetry of nut cap ontology 2.
Then by the end gluing of cage ring 3；Along the opposite in raised 31 faces in cage ring 3, then the end of gluing is
Connection aluminium flake 4 is connected in the inside of cage ring 3；Cage ring 3 connects aluminium flake edge 41 along protrusion 31 by interior.
Again explosion-proof aluminium flake 1 and cage ring 3 will be connected by the glue in S3；Explosion-proof aluminium flake 1, nut cap ontology 2, isolation at this time
Circle 3 and connection aluminium flake 4 are to become an entirety.
Finally by nut cap aluminium flake component (nut cap ontology 2 with explosion-proof aluminium flake 1), cage ring 3 and it connect aluminium flake 4 and places to close
The inside of seal 5 is clamped the edge of explosion-proof aluminium flake 1 by projected side wall 521, can prevent explosion-proof aluminium flake 1 out of sealing ring 5
Portion skids off, in addition, the diameter of interior circular hole 51 is less than the diameter at aluminium flake edge 41 although 5 center of sealing ring is equipped with interior circular hole 51,
Therefore it can prevent connection aluminium flake 4 from skidding off inside interior circular hole 51.
When multiple battery combinations (serial or parallel connection) in use, the top of nut cap ontology 2 can be used in battery and battery it
Between welding.
As shown in Fig. 8 to Figure 10: when use: if generating pressure inside battery core, pressure can be from sealing ring 5 and explosion-proof aluminium flake 1
Between gap appear, Fig. 8 be battery normal condition under form.When battery since short circuit or other reasons lead to internal pressure
When sharply increasing, pressure enters to explosion-proof aluminium flake 1 through connecting the aluminium flake through-hole 43 of aluminium flake 4, since the intensity of explosion-proof aluminium flake 1 is lower than
The intensity of battery case, thus when pressure rise to a certain degree when, the CID connected between aluminium flake 4 and explosion-proof aluminium flake 1 welds quilt
It washes open (Fig. 9), explosion (Figure 10) can occur for explosion-proof aluminium flake 1, be released air pressure inside, and nut cap ontology 2 can prevent explosion-proof
Aluminium flake 1 collapses out.
The flowing and deformation of explosion-proof 1 material of aluminium flake in a certain range prevent explosion-proof 1 material of aluminium flake from flowing and deforming excessive
Lead to not explosion, nut cap ontology 2 is presented convex and provides space for the overturning explosion of explosion-proof aluminium flake 1, and four of nut cap ontology 2 are logical
Stomata ensure that the timely release of battery core air pressure inside after explosion-proof 1 explosion of aluminium flake, prevents air pressure that can not be released effectively and causes battery core
Explosion.
3 ventholes of connection aluminium flake 4 ensure that battery core air pressure inside passes through in time, form pressure, energy to explosion-proof aluminium flake 1
Enough turn-off currents after CID solder joint is rushed to open, avoid battery explosion.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of explosion-proof type battery combination block, it is characterised in that: including explosion-proof aluminium flake (1), nut cap ontology (2), cage ring
(3), aluminium flake (4) and sealing ring (5) are connected, the explosion-proof aluminium flake (1) is equipped with flange (11), and the nut cap ontology (2) is if be equipped with
Dry nut cap edge (21) and several nut cap through-holes (22), the connection aluminium flake (4) center are equipped with internal projection (42), and edge is equipped with aluminium
Piece edge (41) is equipped with several aluminium flake through-holes (43), sealing ring (5) center between aluminium flake edge (41) and internal projection (42)
Equipped with interior circular hole (51), the diameter of the interior circular hole (51) is less than the diameter of aluminium flake edge (41), and the explosion-proof aluminium flake (1) passes through
For flange (11) connection cover hat brim along (21), cage ring (3) side connects explosion-proof aluminium flake (1), other side clamping connection aluminium flake
(4), the explosion-proof aluminium flake (1), nut cap ontology (2), cage ring (3) and connection aluminium flake (4) are all set in sealing ring side wall (52)
Inside.
2. a kind of explosion-proof type battery combination block according to claim 1, it is characterised in that: the nut cap ontology (2)
Material is stainless steel, and the material of the cage ring (3) and sealing ring (5) is PBT.
3. a kind of explosion-proof type battery combination block according to claim 1, it is characterised in that: the nut cap through-hole (22)
Quantity is four, and four nut cap through-holes (22) are circumferentially uniformly arranged, and there are three the quantity of the aluminium flake through-hole (43), three aluminium flakes
Through-hole (43) is uniformly distributed.
4. a kind of explosion-proof type battery combination block according to claim 1, it is characterised in that: the cage ring (3) also sets
Have it is interior along raised (31), it is described interior along raised (31) connection aluminium flake edge (41).
5. a kind of explosion-proof type battery combination block according to claim 1, it is characterised in that: the cage ring (3) and anti-
Connection type between quick-fried aluminium flake (1) is to be glued.
6. a kind of explosion-proof type battery combination block according to claim 1, it is characterised in that: the sealing ring side wall (52)
Interior edge be additionally provided with projected side wall (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154123.0U CN208655712U (en) | 2018-07-20 | 2018-07-20 | A kind of explosion-proof type battery combination block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821154123.0U CN208655712U (en) | 2018-07-20 | 2018-07-20 | A kind of explosion-proof type battery combination block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208655712U true CN208655712U (en) | 2019-03-26 |
Family
ID=65785212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821154123.0U Active CN208655712U (en) | 2018-07-20 | 2018-07-20 | A kind of explosion-proof type battery combination block |
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| Country | Link |
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| CN (1) | CN208655712U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065770A (en) * | 2018-07-20 | 2018-12-21 | 苏州橙柳电子精密有限公司 | A kind of explosion-proof type battery combination block and manufacture craft |
| CN112310554A (en) * | 2020-11-18 | 2021-02-02 | 广东至力科技有限公司 | Explosion-proof structure of miniature lithium ion battery |
-
2018
- 2018-07-20 CN CN201821154123.0U patent/CN208655712U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065770A (en) * | 2018-07-20 | 2018-12-21 | 苏州橙柳电子精密有限公司 | A kind of explosion-proof type battery combination block and manufacture craft |
| CN112310554A (en) * | 2020-11-18 | 2021-02-02 | 广东至力科技有限公司 | Explosion-proof structure of miniature lithium ion battery |
| CN112310554B (en) * | 2020-11-18 | 2022-03-29 | 广东至力科技有限公司 | Explosion-proof structure of miniature lithium ion battery |
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