CN209544401U - A kind of cylindrical battery of high leakproofness - Google Patents
A kind of cylindrical battery of high leakproofness Download PDFInfo
- Publication number
- CN209544401U CN209544401U CN201920086409.8U CN201920086409U CN209544401U CN 209544401 U CN209544401 U CN 209544401U CN 201920086409 U CN201920086409 U CN 201920086409U CN 209544401 U CN209544401 U CN 209544401U
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- CN
- China
- Prior art keywords
- shell
- bending part
- inner casing
- battery core
- high leakproofness
- 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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- 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)
Abstract
The utility model discloses a kind of cylindrical batteries of high leakproofness, including battery core, the shell being coated on outside battery core, the side of the shell have bending part, and the shell includes the inner casing being coated at the top of battery core with side, it is coated on the shell of battery core bottom and inner casing side, the place of joining of the shell and inner casing is provided with sealing ring, sealing ring is oppressed by bending part, so that deformation occurs for sealing ring, to enhance the elastic-restoring force of sealing ring, to achieve the effect that increase battery sealing-performance.
Description
Technical field
The utility model relates to field of batteries, are to be related to a kind of cylindrical battery of high leakproofness more specifically.
Background technique
For current most of battery producers when making cylindrical battery, shell uses circular metal shell.Referring to FIG. 5, existing
The sealing structure of some cylindrical batteries is divided into three layers: inner casing 80, shell 70 and sealing ring 30.The sealing of battery uses the angle R
Sealing technique, however existing technological means to the measurement at the angle R be not very precisely, cannot control battery seal leakproofness completely.Therefore R
Angle sealing tech cannot reliably solve sealing problem.
Utility model content
To overcome drawbacks described above in the prior art, the utility model provides a kind of cylindrical battery of high leakproofness.
To achieve the above object, the utility model provides a kind of cylindrical battery of high leakproofness, including battery core, is coated on
Shell outside battery core, the side of the shell have bending part, and the shell includes the inner casing being coated at the top of battery core with side,
It is coated on the shell of battery core bottom and inner casing side, the place of joining of the shell and inner casing is provided with sealing ring.
Preferably, the side of the inner casing has the first bending part to bend inwards, the side of the shell has
It is directed at the second bending part of the first bending part, the overbending direction of second bending part and the overbending direction one of the first bending part
It causes.
Preferably, the side of the inner casing has the first bending part of outward bending, the side of the shell has
It is directed at the second bending part of the first bending part, the overbending direction phase of the overbending direction and the first bending part of second bending part
Instead.
Preferably, the depth that second bending part bends inwards is 0.01mm-0.5mm, second bending part
Width be 0.1mm-2mm.
Preferably, the shell and inner casing are metal-back.
Compared with prior art, the utility model has the beneficial effects that:
The utility model includes battery core, the shell being coated on outside battery core, and the side of the shell has bending part, the shell
Body includes the inner casing for being coated at the top of battery core and side, is coated on the shell of battery core bottom and inner casing side, the shell with it is interior
The place of joining of shell is provided with sealing ring, sealing ring is oppressed by bending part, so that deformation occurs for sealing ring, to enhance sealing ring
Elastic-restoring force, thus achieve the effect that increase battery sealing-performance.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of sealed structure chart of the cylindrical battery for high leakproofness that the utility model embodiment one provides；
Fig. 2 is the enlarged drawing in the portion A in Fig. 1；
Fig. 3 is a kind of sealed structure chart of the cylindrical battery for high leakproofness that the utility model embodiment two provides；
Fig. 4 is the enlarged drawing in the portion B in Fig. 3
Fig. 5 is the sealed structure chart of existing cylindrical battery.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
The embodiments of the present invention provide a kind of cylindrical battery of high leakproofness.
Embodiment one
Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of cylindrical battery of high leakproofness, including battery core 1, cladding
In the shell 2 outside battery core 1, the side of the shell 2 has bending part 4, and the shell 2 is coated on 1 top of battery core and side
The inner casing 8 in face, is coated on the shell 7 of 8 side of 1 bottom of battery core and inner casing, and the place of joining of the shell 7 and inner casing 8 is provided with close
Seal 3.
In sealing, the side of shell 7 is oppressed, so that shell 7 oppresses inner casing 8 and sealing ring 3, so that the side of inner casing 8
Face has the first bending part 6 to bend inwards, and the side of the shell 7 has the second bending part 5 of the first bending part 6 of alignment,
The overbending direction of second bending part 5 is consistent with the overbending direction of the first bending part 6, so that sealing ring 3 is oppressed, makes
The sealing ring 3 for obtaining battery can effectively improve.
In the present embodiment, the mode and dynamics of compressing can control, so that the depth that second bending part 5 bends inwards
For 0.2mm, the width of second bending part 5 is 0.15mm.Certainly, in other embodiments, second bending part 5 is inside
The depth of bending may be the arbitrary value between 0.01mm-0.5mm, and the width of second bending part 5 may be
Arbitrary value between 0.1mm-2mm.
The first bending part 6 and the second bending part 5 formed in a manner of compressing relative to traditional R corner sealing technique more
For the precision for being easy to control sealing, the sealing problem of battery is effectively solved.
The shell 7 and inner casing 8 are metal-back, are capable of forming not when oppressing in order to external force shell 7 and inner casing 8
Easily the first bending part 6 and the second bending part 5 of discovery deformation, final realize oppresses the fixed of sealing ring 3, so that sealing ring 3
Deformation occurs, enhances the elastic-restoring force of sealing ring 3, to achieve the effect that increase battery sealing-performance.
Embodiment two
Fig. 3 and Fig. 4 are please referred to, the utility model provides a kind of cylindrical battery of high leakproofness, embodiment two and implementation
The difference of example one is: the side of the inner casing 8 has the first bending part 6 of outward bending, and the side of the shell 7 has pair
Second bending part 5 of quasi- first bending part 6, the overbending direction phase of the overbending direction of second bending part 5 and the first bending part 6
Instead.
The first bending part 6 of outward bending is provided on the side of inner casing 8 when inner casing 8 forms, is sealed well when putting
When circle 3 and shell 7, by compressing so that the side of shell 7 forms the second bending part for bending inwards and being aligned the first bending part 6
5, so that sealing ring 3 is oppressed, deformation occurs, enhances the elastic-restoring force of sealing ring 3, to reach increase battery sealing-performance
Effect.
Other are set in embodiment one unanimously, and details are not described herein again.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (5)
1. a kind of cylindrical battery of high leakproofness, including battery core (1) are coated on the shell (2) of battery core (1) outside, feature exists
In: the side of the shell (2) has bending part (4), and the shell (2) is coated on the interior of at the top of battery core (1) and side
Shell (8), is coated on the shell (7) of battery core (1) bottom and inner casing (8) side, and the shell (7) and the place of joining of inner casing (8) are set
It is equipped with sealing ring (3).
2. a kind of cylindrical battery of high leakproofness according to claim 1, it is characterised in that: the side of the inner casing (8)
Face has the first bending part (6) to bend inwards, and the side of the shell (7) is curved with the second of alignment the first bending part (6)
The overbending direction of folding part (5), second bending part (5) is consistent with the overbending direction of the first bending part (6).
3. a kind of cylindrical battery of high leakproofness according to claim 1, it is characterised in that: the side of the inner casing (8)
Face has the first bending part (6) of outward bending, and the side of the shell (7) is curved with the second of alignment the first bending part (6)
The overbending direction of folding part (5), second bending part (5) is opposite with the overbending direction of the first bending part (6).
4. a kind of cylindrical battery of high leakproofness according to claim 2, it is characterised in that: second bending part
(5) depth to bend inwards is 0.01mm-0.5mm, and the width of second bending part (5) is 0.1mm-2mm.
5. a kind of cylindrical battery of high leakproofness according to claim 1, it is characterised in that: the shell (7) and interior
Shell (8) is metal-back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920086409.8U CN209544401U (en) | 2019-01-18 | 2019-01-18 | A kind of cylindrical battery of high leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920086409.8U CN209544401U (en) | 2019-01-18 | 2019-01-18 | A kind of cylindrical battery of high leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209544401U true CN209544401U (en) | 2019-10-25 |
Family
ID=68270402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920086409.8U Active CN209544401U (en) | 2019-01-18 | 2019-01-18 | A kind of cylindrical battery of high leakproofness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209544401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021169508A1 (en) * | 2020-02-25 | 2021-09-02 | 广东微电新能源有限公司 | Battery apparatus and electronic device |
-
2019
- 2019-01-18 CN CN201920086409.8U patent/CN209544401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021169508A1 (en) * | 2020-02-25 | 2021-09-02 | 广东微电新能源有限公司 | Battery apparatus and electronic device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 405400 Zhaojia Industrial Park, Kaizhou District, Chongqing Patentee after: Chongqing Zijian Electronic Co.,Ltd. Address before: 405400 Zhaojia Industrial Park, Kaizhou District, Chongqing Patentee before: CHONGQING VDL ELECTRONICS Co.,Ltd. |