CN209328965U - It is a kind of with sealing reinforcement structure without top cover lithium ion battery - Google Patents
It is a kind of with sealing reinforcement structure without top cover lithium ion battery Download PDFInfo
- Publication number
- CN209328965U CN209328965U CN201920005646.7U CN201920005646U CN209328965U CN 209328965 U CN209328965 U CN 209328965U CN 201920005646 U CN201920005646 U CN 201920005646U CN 209328965 U CN209328965 U CN 209328965U
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- CN
- China
- Prior art keywords
- pressure disc
- rupture pressure
- lithium ion
- ion battery
- top cover
- 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
-
- 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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provide it is a kind of with sealing reinforcement structure without top cover lithium ion battery, it includes battery case, the electrode assembly being set in battery case and the cover plate assembly for being set to battery case opening, cover plate assembly includes rupture pressure disc, insulating part and connection sheet, rupture pressure disc connects insulating part, the bottom of rupture pressure disc connects connection sheet, connection sheet connection electrode component is provided with seal member, is connected on seal member after the edge bending of rupture pressure disc between rupture pressure disc and connection sheet.Compared to the prior art, the utility model can be effectively reduced battery height and quality, increase battery pressure release space under the premise of so that rupture pressure disc formed flanging design, present integral structure, the sealing performance at rupture pressure disc is effectively improved, so as to improve the leakage problem of battery.
Description
Technical field
The utility model relates to field of lithium ion battery, in particular to it is a kind of with sealing reinforcement structure without top
Lid lithium ion battery.
Background technique
With the gradually development of new-energy automobile, lithium ion battery, which has begun, to be replaced gasoline step by step and becomes automobile
Power support.In current lithium ion battery, battery core part often will use cylindrical battery core, which mainly has outer
It shell, electrode assembly and seals the cover plate assembly of shell aperture and is formed.
With the development of science and technology people for battery demand with require higher and higher, how to produce that mass is lighter, body
The smaller battery of product has become research hotspot.However, in the prior art, the quality and volume of lithium ion battery still can not
Meets the needs of people.
Thus, many batteries have begun using the technology without design of cover at present, original battery cap is removed,
Just more stringent requirements are proposed for leakproofness of the stability to the installation of corresponding rupture pressure disc and rupture pressure disc etc. for this, if stability
It goes wrong with leakproofness, it is possible that the leakage problem of battery, and then influence the normal use of battery.
Utility model content
In consideration of it, the utility model provide a kind of installation stability that can effectively improve battery top rupture pressure disc and
Leakproofness have sealing reinforcement structure without top cover lithium ion battery.
For this purpose, the utility model provide it is a kind of with sealing reinforcement structure without top cover lithium ion battery comprising electricity
Pond shell, the electrode assembly being set in battery case and the cover plate assembly for being set to battery case opening, cover plate assembly packet
Rupture pressure disc, insulating part and connection sheet are included, rupture pressure disc connects insulating part, and the bottom of rupture pressure disc connects connection sheet, connection sheet connection electricity
Pole component is provided with seal member, is connected on seal member after the edge bending of rupture pressure disc between rupture pressure disc and connection sheet.
Further, above-mentioned seal member includes support ring, and the edge of support ring is connected in after the edge bending of rupture pressure disc
On.
Further, annular gasket is provided between above-mentioned support ring and connection sheet.
Further, the bottom of above-mentioned support ring has the annular convex rib for the outer rim for resisting annular gasket.
Further, the inner wall of above-mentioned annular convex rib has the outer rim for resisting annular gasket.
Further, the outer wall of above-mentioned annular convex rib is inclined-plane.
Further, above-mentioned insulating part is set between battery case and the edge of rupture pressure disc.
Further, the cross section of above-mentioned insulating part is C-shaped, envelopes the edge of rupture pressure disc.
It is provided by the utility model it is a kind of with sealing reinforcement structure without top cover lithium ion battery, by rupture pressure disc
Seal member is set between connection sheet, and will be connected on seal member after the edge bending of rupture pressure disc, is on the one hand made
Rupture pressure disc forms flanging design, and integral structure is presented, plays to the stronger supporting role of rupture pressure disc, is on the other hand formed explosion-proof
More preferably sealing performance at film, effectively improves the leakage problem of battery.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is a kind of knot without top cover lithium ion battery with sealing reinforcement structure provided by the embodiment of the utility model
Structure schematic diagram；
Fig. 2 be it is provided by the embodiment of the utility model it is a kind of with sealing reinforcement structure without being propped up in top cover lithium ion battery
The structural schematic diagram of pushing out ring；
Fig. 3 be it is provided by the embodiment of the utility model it is a kind of with sealing reinforcement structure without being padded in top cover lithium ion battery
The structural schematic diagram of piece；
Fig. 4 be it is provided by the embodiment of the utility model it is a kind of with sealing reinforcement structure without connecting in top cover lithium ion battery
The structural schematic diagram of contact pin.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Referring to Fig. 1 to Fig. 4, a kind of nothing with sealing reinforcement structure provided by the embodiment of the utility model is shown in figure
Top cover lithium ion battery mainly includes battery case 1, the electrode assembly being set in battery case 1 11 and is set to battery
The cover plate assembly 12 of 1 opening of shell, cover plate assembly 12 include rupture pressure disc 2, insulating part 3 and connection sheet 4, and rupture pressure disc 2 connects absolutely
The bottom of edge part 3, rupture pressure disc 2 connects connection sheet 4, and 4 connection electrode component 11 of connection sheet is arranged between rupture pressure disc 2 and connection sheet 4
There is seal member 5, is connected on seal member 5 after 21 bending of edge of rupture pressure disc 2.
Specifically, seal member 5 includes support ring 51, and the side of support ring 51 is connected in after 21 bending of edge of rupture pressure disc 2
On edge 52, the material of the support ring is specifically as follows metal material, preferably steel or nickel.Meanwhile the material of above-mentioned insulating part
Matter is specifically as follows plastic material, preferably PP or PET；The material of rupture pressure disc is specifically as follows metal material, preferably aluminium；Even
The material of contact pin is specifically as follows metal material, preferably aluminium.
Wherein, laser welding is formed between connection sheet 4 and rupture pressure disc 3, CID can be played the role of.
Provided by the present embodiment it is a kind of with sealing reinforcement structure without top cover lithium ion battery, by rupture pressure disc and
Seal member is set between connection sheet, and will be connected on seal member after the edge bending of rupture pressure disc, it is specifically explosion-proof
It is connected on the edge of support ring after the edge bending of film, rupture pressure disc is on the one hand made to form flanging design, integration knot is presented
Structure is played to the stronger supporting role of rupture pressure disc, is on the other hand formed at rupture pressure disc more preferably sealing performance, is effectively improved electricity
The leakage problem in pond.
Referring to Fig. 1 and Fig. 3, it is provided with annular gasket 53 between support ring 51 and connection sheet 4, can be formed to support ring
Firm supporting role, the specific material of the annular gasket 53 can be with plastic material, preferably PP or PET.
Referring to Fig. 1, the bottom of support ring 51 has the annular convex rib 54 for the outer rim for resisting annular gasket 53；Annular convex rib 54
Inner wall 541 have and resist the outer rim of annular gasket 53；The outer wall 542 of annular convex rib 54 is inclined-plane.Pass through setting for above structure
It sets, the firm supporting role to support ring can be formed, annular convex rib also has the position-limiting action to annular gasket.
Referring to Fig. 1, insulating part 3 is set between battery case 1 and the edge 21 of rupture pressure disc 2；And specifically, insulating part 3
Cross section it is C-shaped, envelope the edge 21 of rupture pressure disc 2.Pass through the setting of above structure, it is ensured that insulating part installation
Stability.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (8)
1. it is a kind of with sealing reinforcement structure without top cover lithium ion battery, which is characterized in that including battery case (1), setting
In the electrode assembly (11) in battery case (1) and it is set to the cover plate assembly (12) of battery case (1) opening, the cover board
Component (12) includes rupture pressure disc (2), insulating part (3) and connection sheet (4), and the rupture pressure disc (2) connects the insulating part (3), institute
The bottom for stating rupture pressure disc (2) connects the connection sheet (4), and the connection sheet (4) connects the electrode assembly (11), described explosion-proof
It is provided between film (2) and the connection sheet (4) seal member (5), is connected in after edge (21) bending of the rupture pressure disc (2)
On the seal member (5).
2. it is according to claim 1 it is a kind of with sealing reinforcement structure without top cover lithium ion battery, which is characterized in that institute
Stating seal member (5) includes support ring (51), is connected in the support ring (51) after edge (21) bending of the rupture pressure disc (2)
Edge (52) on.
3. it is according to claim 2 it is a kind of with sealing reinforcement structure without top cover lithium ion battery, which is characterized in that institute
It states and is provided with annular gasket (53) between support ring (51) and the connection sheet (4).
4. it is according to claim 3 it is a kind of with sealing reinforcement structure without top cover lithium ion battery, which is characterized in that institute
The bottom for stating support ring (51) has the annular convex rib (54) for the outer rim for resisting the annular gasket (53).
5. it is according to claim 4 it is a kind of with sealing reinforcement structure without top cover lithium ion battery, which is characterized in that institute
The inner wall (541) for stating annular convex rib (54) has the outer rim for resisting the annular gasket (53).
6. it is according to claim 4 or 5 it is a kind of with sealing reinforcement structure without top cover lithium ion battery, feature exists
In the outer wall (542) of the annular convex rib (54) is inclined-plane.
7. it is according to claim 1 it is a kind of with sealing reinforcement structure without top cover lithium ion battery, which is characterized in that institute
Insulating part (3) is stated to be set between the battery case (1) and the edge (21) of the rupture pressure disc (2).
8. it is according to claim 7 it is a kind of with sealing reinforcement structure without top cover lithium ion battery, which is characterized in that institute
The cross section for stating insulating part (3) is C-shaped, envelopes the edge (21) of the rupture pressure disc (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920005646.7U CN209328965U (en) | 2019-01-03 | 2019-01-03 | It is a kind of with sealing reinforcement structure without top cover lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920005646.7U CN209328965U (en) | 2019-01-03 | 2019-01-03 | It is a kind of with sealing reinforcement structure without top cover lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209328965U true CN209328965U (en) | 2019-08-30 |
Family
ID=67730470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920005646.7U Active CN209328965U (en) | 2019-01-03 | 2019-01-03 | It is a kind of with sealing reinforcement structure without top cover lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209328965U (en) |
-
2019
- 2019-01-03 CN CN201920005646.7U patent/CN209328965U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |