CN204668367U - Cover plate of power lithium - Google Patents
Cover plate of power lithium Download PDFInfo
- Publication number
- CN204668367U CN204668367U CN201520342591.0U CN201520342591U CN204668367U CN 204668367 U CN204668367 U CN 204668367U CN 201520342591 U CN201520342591 U CN 201520342591U CN 204668367 U CN204668367 U CN 204668367U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- hole
- insulation cushion
- pole
- power lithium
- 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.)
- Expired - Fee Related
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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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- Secondary Cells (AREA)
Abstract
The utility model relates to a kind of cover plate of power lithium, it comprises the cover plate matrix offering through hole, one end is through the pole of through hole, to be set on described pole and to be close to the first insulation cushion of described cover plate matrix side, to be set on described pole and to be close to the second insulation cushion of described cover plate matrix another side and to be set on described pole and to be close to the electrode pressing plate of described second insulation cushion, through hole is non-circular and its edge comprises multi-section circular arc, described pole comprises the stage portion matched with described through hole, first insulation cushion, second insulation cushion all offers the mesopore consistent with described through hole with described electrode pressing plate.The utility model cover plate of power lithium, by through hole being arranged to contain the non-circular of multi-section circular arc, and the stage portion of pole is designed to match with through hole and the first insulation cushion, the second insulation cushion and electrode pressing plate all offer the mesopore consistent with through hole, the torsion of cover plate can be improved like this, thus improve reliability and the useful life of whole lithium battery.
Description
Technical field
The utility model belongs to lithium battery part field, relates to a kind of lithium battery, is specifically related to a kind of cover plate of power lithium.
Background technology
Lithium battery has the advantages such as lightweight, Gao Rong, long-life, self-discharge rate be low, pollution-free, is promoted the use of the aspects such as electric bicycle, electric automobile, electronic hardware & tools more and more.Lithium battery pack usually by cylindrical housings, be arranged on the battery pack in housing and close cylindrical housings two ends and the cover plate carrying out wiring forms.Namely existing two plate lithium battery cover plate is positioned at positive pole cover plate and the cover plate at housing two ends, how by having the matrix of through hole, the screw-like pole be fixed on matrix, electrode compressing tablet form, and is arranged with sealing gasket respectively to reach the object of insulation between pole lower end and matrix and between matrix and electrode compressing tablet.
Along with the raising of lithium cell charging capacity, the seal request of li battery shell is also improved.The lithium battery cover plate of said structure is when being subject to twisting, only isolate by sealing gasket due to electrode pressing plate and matrix and between matrix and pole, when cover plate external force, electrode pressing plate is easily that axle center deflects with pole, make sealed insulation unreliable, electrode pressing plate departs from insulating sealer and contacts with the cover plate of battery or outer casing inner wall, thus causes short circuit and cause battery to scrap, and even explodes.Therefore need to design the less shortcoming of a kind of novel its torsion of cover plate of power lithium customer service.
Utility model content
The utility model object provides a kind of cover plate of power lithium to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of cover plate of power lithium, it comprises the cover plate matrix offering through hole, one end is through the pole of described through hole, to be set on described pole and to be close to the first insulation cushion of described cover plate matrix side, to be set on described pole and to be close to the second insulation cushion of described cover plate matrix another side and to be set on described pole and to be close to the electrode pressing plate of described second insulation cushion, described through hole is non-circular and its edge comprises multi-section circular arc, described pole comprises the stage portion matched with described through hole, described first insulation cushion, described second insulation cushion all offers the mesopore consistent with described through hole with described electrode pressing plate.
Optimally, described through hole edge is connected successively by least three sections of head and the tail and the circular arc seamlessly transitted surrounds.
Further, described circular arc is semi arch and is symmetrical arranged.
Further, described circular arc is 4 ~ 8 sections.
Optimally, described pole also comprises and is arranged at described stage portion one end and is close to the end cap of described first insulation cushion and is arranged at the connector of the described stage portion other end.
Further, the side face of described connector is provided with screw thread.
Further, described end cap and the opposing flanking central of described cover plate matrix offer the accommodation space extended in described stage portion.
Further, described end cap and the opposing flanking central of described cover plate matrix are also provided with the hollow projection around described accommodation space edge.
Because technique scheme is used, the utility model compared with prior art has following advantages: the utility model cover plate of power lithium, by through hole being arranged to contain the non-circular of multi-section circular arc, and the stage portion of pole is designed to match with through hole and the first insulation cushion, the second insulation cushion and electrode pressing plate all offer the mesopore consistent with through hole, the torsion of cover plate can be improved like this, thus improve reliability and the useful life of whole lithium battery.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model cover plate of power lithium;
Accompanying drawing 2 is the sectional view of accompanying drawing 1;
Wherein: 1, cover plate matrix; 11, through hole; 2, pole; 21, end cap; 22, hollow projection; 23, accommodation space; 24, stage portion; 241, raised line; 25, connector; 251, screw thread; 3, the first insulation cushion; 4, the second insulation cushion; 5, electrode pressing plate.
Embodiment
Below in conjunction with accompanying drawing, the utility model preferred embodiment is described in detail:
Cover plate of power lithium as depicted in figs. 1 and 2, mainly comprises cover plate matrix 1, pole 2, first insulation cushion 3, second insulation cushion 4 and electrode pressing plate 5.
Wherein, cover plate matrix 1 is circular, and its central authorities offer through hole 11, and this through hole 11 comprises the non-circular shape of multi-section circular arc for edge.One end of pole 2 is through through hole 11, and it includes the stage portion 24 matched with through hole 11, and stage portion 24 entirety is cylindrical and side face is provided with many raised lines 241, and these raised line 241 correspondences are arranged on circular arc place.First insulation cushion 3 is set on pole 2, and it is close to the side of cover plate matrix 1; Second insulation cushion 4 is also set on pole 2, and it is close to the another side of cover plate matrix 1; Electrode pressing plate 5 is also set on pole 2, and it is close to the second insulation cushion 4, tightens together for making cover plate matrix 1, pole 2, first insulation cushion 3 and the second insulation cushion 4.First insulation cushion 3, second insulation cushion 4 all offers the mesopore consistent with through hole 11 with electrode pressing plate 5.The torsion of cover plate can be improved like this, thus improve reliability and the useful life of whole lithium battery.
In the present embodiment, the edge of through hole 11 is connected successively by least three sections of head and the tail and the circular arc seamlessly transitted surrounds, and these circular arcs are preferably semi arch, and are symmetrical arranged, thus torsion is maximized.Circular arc is preferably 4 ~ 8 sections, and in the present embodiment, circular arc is 6 sections, thus makes whole through hole 11 be the plum blossom shape that lobe number is six lobes.Corresponding, raised line 241 is also six, and they are distributed on the outer peripheral face of stage portion 24, is parallel to each other and the plane being perpendicular at bearing of trend and cover plate matrix 1 place.
In the present embodiment, pole 2 mainly comprises end cap 21, stage portion 24 and connector 25; End cap 21 is shaped in one end of stage portion 24, and it parallels with cover plate matrix 1; Connector 25 is shaped in the other end of stage portion 24, and its axial line is identical with stage portion 24 axial line.The side face of connector 25 is provided with screw thread 251, for being connected with other parts of dynamic lithium battery.End cap 21 flanking central opposing with cover plate matrix 1 offers the accommodation space 23 extended in stage portion 24, and this accommodation space 23 is in cylindricality; End cap 21 flanking central opposing with cover plate matrix 1 is also provided with hollow protruding 22, this hollow protruding 22 edge being around in accommodation space 23.
Above-described embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and implement according to this; protection range of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection range of the present utility model.
Claims (8)
1. a cover plate of power lithium, it comprises the cover plate matrix (1) offering through hole (11), one end is through the pole (2) of described through hole (11), be set in described pole (2) to go up and the first insulation cushion (3) being close to described cover plate matrix (1) side, be set in described pole (2) upper and be close to second insulation cushion (4) of described cover plate matrix (1) another side and to be set in described pole (2) upper and be close to the electrode pressing plate (5) of described second insulation cushion (4), it is characterized in that: described through hole (11) is for non-circular and its edge comprises multi-section circular arc, described pole (2) comprises the stage portion (24) matched with described through hole (11), described first insulation cushion (3), described second insulation cushion (4) all offers the mesopore consistent with described through hole (11) with described electrode pressing plate (5).
2. cover plate of power lithium according to claim 1, is characterized in that: described through hole (11) edge is connected successively by least three sections of head and the tail and the circular arc seamlessly transitted surrounds.
3. cover plate of power lithium according to claim 2, is characterized in that: described circular arc is semi arch and is symmetrical arranged.
4. cover plate of power lithium according to claim 3, is characterized in that: described circular arc is 4 ~ 8 sections.
5. cover plate of power lithium according to claim 1, is characterized in that: described pole (2) also comprises and is arranged at described stage portion (24) one end and is close to the end cap (21) of described first insulation cushion (3) and is arranged at the connector (25) of described stage portion (24) other end.
6. cover plate of power lithium according to claim 5, is characterized in that: the side face of described connector (25) is provided with screw thread (251).
7. cover plate of power lithium according to claim 5, is characterized in that: the flanking central that described end cap (21) and described cover plate matrix (1) are opposing offers the accommodation space (23) extended in described stage portion (24).
8. cover plate of power lithium according to claim 7, is characterized in that: the flanking central that described end cap (21) and described cover plate matrix (1) are opposing is also provided with the hollow projection (22) around described accommodation space (23) edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520342591.0U CN204668367U (en) | 2015-05-22 | 2015-05-22 | Cover plate of power lithium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520342591.0U CN204668367U (en) | 2015-05-22 | 2015-05-22 | Cover plate of power lithium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204668367U true CN204668367U (en) | 2015-09-23 |
Family
ID=54138720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520342591.0U Expired - Fee Related CN204668367U (en) | 2015-05-22 | 2015-05-22 | Cover plate of power lithium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204668367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017361A (en) * | 2017-05-24 | 2017-08-04 | 深圳市长盈精密技术股份有限公司 | Cover plate of power battery and its electrokinetic cell |
-
2015
- 2015-05-22 CN CN201520342591.0U patent/CN204668367U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017361A (en) * | 2017-05-24 | 2017-08-04 | 深圳市长盈精密技术股份有限公司 | Cover plate of power battery and its electrokinetic cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20210522 |