CN205723710U - Battery cap assembly - Google Patents
Battery cap assembly Download PDFInfo
- Publication number
- CN205723710U CN205723710U CN201620573526.3U CN201620573526U CN205723710U CN 205723710 U CN205723710 U CN 205723710U CN 201620573526 U CN201620573526 U CN 201620573526U CN 205723710 U CN205723710 U CN 205723710U
- Authority
- CN
- China
- Prior art keywords
- protection department
- cap assembly
- battery cap
- battery
- utility
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
This utility model provides a kind of battery cap assembly, comprising: top cover, is provided with relief hole；Explosion-proof valve, fixes and is covered in relief hole；And roll-over protective structure.Roll-over protective structure has: protection department, is arranged on the lower section of explosion-proof valve；And connecting portion, it is connected with corresponding protection department and is fixed on top cover.Wherein, protection department has the structure strengthening intensity.According in battery cap assembly of the present utility model, when internal short-circuit of battery during a large amount of aerogenesis, owing to protection department has the structure of enhancing intensity, therefore, protection department is it can be avoided that deform under the impact of gas, from without blocking explosion-proof valve, prevent inside battery gas pressure excessive and the blast that causes, improve the security performance of battery.
Description
Technical field
This utility model relates to field of batteries, particularly relates to a kind of battery cap assembly.
Background technology
When inside battery is short-circuited, can produce substantial amounts of gas, gas is discharged to the outside of battery via explosion-proof valve,
Blast is caused to prevent inside battery air pressure excessive.But, inside battery aerogenesis can be with substantial amounts of during ejection
Solid particle, solid particle easily produces spark with windage and puts the imflammable gas that fuel cell is discharged after discharging, causing
The burning of battery, blast, so the most generally using roll-over protective structure to isolate solid particle, with reference to Figure 10, gas produces
Raw gas can inject directly on protection department 31, and solid particle therein is rebounded by protection department 31, isolates, and gas can pass through
Roll-over protective structure 3 is discharged to outside batteries with gap and the explosion-proof valve 2 of top cover 1；But, owing to protection department 31 is single plane, from
The structural strength of body is low, is easily deformed when being impacted by gas, even blocks explosion-proof valve 2, causes the inside battery gas cannot
Discharge, and then cause the blast of battery.
Utility model content
In view of problem present in background technology, the purpose of this utility model is to provide a kind of battery cap assembly, its
The intensity of roll-over protective structure can be strengthened, improve the security performance of battery.
To achieve these goals, this utility model provides a kind of battery cap assembly, comprising: top cover, is provided with
Relief hole；Explosion-proof valve, fixes and is covered in relief hole；And roll-over protective structure.Roll-over protective structure has: protection department, is arranged on explosion-proof valve
Lower section；And connecting portion, it is connected with corresponding protection department and is fixed on top cover.Wherein, protection department has the knot strengthening intensity
Structure.
The beneficial effects of the utility model are as follows:
According in battery cap assembly of the present utility model, when internal short-circuit of battery during a large amount of aerogenesis, due to protection
Portion has the structure strengthening intensity, and therefore, protection department is it can be avoided that deform, from explosion-proof without blocking under the impact of gas
Valve, prevents inside battery gas pressure excessive and the blast that causes, improves the security performance of battery.
Accompanying drawing explanation
Fig. 1 is the exploded view according to battery cap assembly of the present utility model；
Fig. 2 to Fig. 9 is the schematic diagram of the different embodiments of the roll-over protective structure according to battery cap assembly of the present utility model；
Figure 10 is the schematic diagram of the roll-over protective structure of the battery cap assembly of prior art.
Wherein, description of reference numerals is as follows:
1 top cover 313 first opening
11 relief hole 32 sidewalls
2 explosion-proof valve 321 second openings
3 roll-over protective structure 33 connecting portions
31 protection department B boss
311 rake L length directions
312 planar portions U above-below directions
Detailed description of the invention
Describe battery cap assembly of the present utility model with reference to the accompanying drawings in detail.
Referring to figs. 1 through Fig. 9, include according to battery cap assembly of the present utility model: top cover 1, be provided with relief hole 11；Anti-
Quick-fried valve 2, fixes and is covered in relief hole 11；And roll-over protective structure 3.Roll-over protective structure 3 has: protection department 31, is arranged on explosion-proof valve 2 times
Side；And connecting portion 33, it is connected with corresponding protection department 31 and is fixed on top cover 1.Wherein, protection department 31 has enhancing intensity
Structure.
According in battery cap assembly of the present utility model, when internal short-circuit of battery during a large amount of aerogenesis, due to protection
Portion 31 has the structure strengthening intensity, and therefore, protection department 31 is it can be avoided that deform, from anti-without blocking under the impact of gas
Quick-fried valve 2, prevents inside battery gas pressure excessive and the blast that causes, improves the security performance of battery.
In the embodiment according to battery cap assembly of the present utility model, referring to figs. 1 through Fig. 4, protection department 31 is along far
Protrude from the direction of relief hole 11, to form the structure strengthening intensity.Owing to protection department 31 is convex along the direction away from relief hole 11
Go out, increase the lifting surface area of protection department 31, improve the structural strength of protection department 31.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 1, protection department 31 is arc.With
Prior art compares, and the lifting surface area of the protection department 31 of arc is big, and bearing capacity is strong, generally, and middle part (the i.e. arc of protection department 31
Top) impact force is relatively big, be easily deformed, and the protection department 31 of arc be when being impacted by gas, it is possible to by gas
To both sides (in Fig. 1 both sides) along its length shunting, thus reduce the power being subject to, thus avoid blocking because of deformation explosion-proof valve
2。
In the embodiment according to battery cap assembly of the present utility model, the angle of the central angle that described arc is corresponding
It it is 45 °～120 °.The angle of the central angle that arc is corresponding is the least, inconspicuous to the reinforced effects of protection department 31 intensity, arc pair
The angle of the central angle answered is too big, then can take bigger space, reduces the energy density of battery.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 2, protection department 31 has two and inclines
Tiltedly portion 311, two rakes 311 form the structure strengthening intensity.Two rakes 311 are connected with each other, and at the position connected
Forming angle, the summit of angle is protruded along the direction away from relief hole 11, compared with the prior art, forms the protection department 31 of angle
Lifting surface area big, bearing capacity is strong, and at protection department 31 when being impacted by gas, the summit of angle can be by gas to two
Side shunts, thus reduces the power being subject to, thus avoids blocking explosion-proof valve 2 because of deformation.
In the embodiment according to battery cap assembly of the present utility model, two rakes 311 connect the folder formed
Angle is 90 °～135 °.The angle of described angle is too big, inconspicuous to the reinforced effects of protection department 31 intensity, the angle of described angle
Spend the least, then can take bigger space, reduce the energy density of battery.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 4, protection department 31 has: plane
Portion 312, is positioned at the central authorities of protection department 31；And two rakes 311, lay respectively at the two of planar portions 312 L along its length
Side, to strengthen the structure of intensity together with planar portions 312 with formation.Two rakes 311 are put down from the supported on both sides of length direction L
Face 312, thus form a kind of trapezium structure, the lifting surface area in protection department 31 of this trapezium structure is big, and bearing capacity is strong.
In the embodiment according to battery cap assembly of the present utility model, the angle of two rake 311 formation is
90 °～120 °.The angle of described angle is too big, and inconspicuous to the reinforced effects of protection department 31 intensity, the angle of described angle is too
Little, then can take bigger space, reduce the energy density of battery.
In the embodiment according to battery cap assembly of the present utility model, the length of planar portions 312 L along its length
For the total length of protection department 31 L along its length 1/2～3/4.
In the embodiment according to battery cap assembly of the present utility model, protection department 31 is plane.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 3, Fig. 5 to Fig. 9, protection department 31
It is provided with boss B.Protection department 31 arranges boss B and can strengthen the intensity of protection department 31.
In the embodiment according to battery cap assembly of the present utility model, it is one with reference to Fig. 5, boss B, and boss
The area of B is more than the 50% of protection department 31 entire area.
In the embodiment according to battery cap assembly of the present utility model, it is multiple with reference to Fig. 6 to Fig. 9, boss B,
Any two boss B is parallel to each other or vertically intersects.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 9, boss B along close to relief hole
The direction of 11 is protruded.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 5 to Fig. 8, boss B along away from letting out
The direction in pressure hole 11 is protruded.
In the embodiment according to battery cap assembly of the present utility model, boss B is by protection department 31 integrated punching shape
Become.Specifically, " integrated punching " refers to boss B is directly to be stamped to form on protection department 31, and the boss B i.e. formed is anti-
The side protecting portion 31 is protruded, and in the opposite side depression of protection department 31.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 1, protection department 31 and explosion-proof valve 2
Between space connect with the space of the outside of protection department 31.Remark additionally at this, " between protection department 31 and explosion-proof valve 2
Space " refer to roll-over protective structure 3 in the face of top cover 1 space that covers top cover 1, " space of the outside of protection department 31 " refers to electricity
After the housing of pond cap assembly and battery assembles, the space in the housing of battery.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 1, protection department 31 is near connecting portion
The marginal portion of 33 is provided with the first through opening 313.The portion gas that inside battery produces can via the first opening 313 and
Explosion-proof valve 2 is discharged to the outside of battery.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 2 to 9, battery cap assembly is also
Including: sidewall 32, connect protection department 31 and connecting portion 33.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 2 to 9, sidewall 32 has through
The second opening 321.The portion gas that inside battery produces can be discharged to battery via the second opening 321 and explosion-proof valve 2
Outside.
In the embodiment according to battery cap assembly of the present utility model, with reference to Fig. 2 to 9, connecting portion 33 is two,
Lay respectively at the both sides of protection department 31 L along its length.
In the embodiment according to battery cap assembly of the present utility model, the protection department 31 throwing on above-below direction U
Shadow can be completely covered by explosion-proof valve 2.
Claims (10)
1. a battery cap assembly, including:
Top cover (1), is provided with relief hole (11)；
Explosion-proof valve (2), fixes and is covered in relief hole (11)；And
Roll-over protective structure (3), has:
Protection department (31), is arranged on the lower section of explosion-proof valve (2)；
And
Connecting portion (33), is connected with corresponding protection department (31) and is fixed on top cover (1)；
It is characterized in that, protection department (31) has the structure strengthening intensity.
Battery cap assembly the most according to claim 1, it is characterised in that protection department (31) is along away from relief hole (11)
Direction is protruded, to form the structure strengthening intensity.
Battery cap assembly the most according to claim 2, it is characterised in that protection department (31) is arc.
Battery cap assembly the most according to claim 2, it is characterised in that protection department (31) has two rakes
(311), two rakes (311) form the structure strengthening intensity.
Battery cap assembly the most according to claim 2, it is characterised in that protection department (31) has:
Planar portions (312), is positioned at the central authorities of protection department (31)；And
Two rakes (311), lay respectively at the both sides of planar portions (312) (L) along its length, with planar portions (312)
Rise to form the structure strengthening intensity.
Battery cap assembly the most according to claim 1, it is characterised in that protection department (31) is plane.
7. according to the battery cap assembly according to any one of claim 1～6, it is characterised in that protection department (31) is provided with
Boss (B).
Battery cap assembly the most according to claim 7, it is characterised in that
Boss (B) is one, and the area of boss (B) is more than the 50% of protection department (31) entire area；Or
Boss (B) is multiple, and any two boss (B) is parallel to each other or vertically intersects.
Battery cap assembly the most according to claim 1, it is characterised in that battery cap assembly also includes:
Sidewall (32), connects protection department (31) and connecting portion (33).
Battery cap assembly the most according to claim 9, it is characterised in that sidewall (32) has the second through opening
(321)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573526.3U CN205723710U (en) | 2016-06-15 | 2016-06-15 | Battery cap assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573526.3U CN205723710U (en) | 2016-06-15 | 2016-06-15 | Battery cap assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205723710U true CN205723710U (en) | 2016-11-23 |
Family
ID=57306809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620573526.3U Active CN205723710U (en) | 2016-06-15 | 2016-06-15 | Battery cap assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205723710U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019174087A1 (en) * | 2018-03-16 | 2019-09-19 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN111029489A (en) * | 2019-08-14 | 2020-04-17 | 宁德时代新能源科技股份有限公司 | Secondary battery |
-
2016
- 2016-06-15 CN CN201620573526.3U patent/CN205723710U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019174087A1 (en) * | 2018-03-16 | 2019-09-19 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN111029489A (en) * | 2019-08-14 | 2020-04-17 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| CN111029489B (en) * | 2019-08-14 | 2021-08-17 | 宁德时代新能源科技股份有限公司 | Secondary battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |