CN107017361A - Cover plate of power battery and its electrokinetic cell - Google Patents
Cover plate of power battery and its electrokinetic cell Download PDFInfo
- Publication number
- CN107017361A CN107017361A CN201710377216.3A CN201710377216A CN107017361A CN 107017361 A CN107017361 A CN 107017361A CN 201710377216 A CN201710377216 A CN 201710377216A CN 107017361 A CN107017361 A CN 107017361A
- Authority
- CN
- China
- Prior art keywords
- board body
- cover board
- power battery
- cover plate
- pole
- 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.)
- Pending
Links
- 239000011159 matrix material Substances 0.000 claims abstract description 9
- 239000011241 protective layer Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract 2
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000002498 deadly effect Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
This application provides a kind of cover plate of power battery, including cover board body, it is covered in the insulating protective layer of the cover board body internal layer, it is installed on the pole on the cover board body, and the nut for the pole to be fixed on cover board body, the cover board body is provided with pole column hole, the cover board body lateral surface is located at the pole hole peripheral and is provided with the first wedge structure, the pole includes the matrix part being connected on the cover board body medial surface and the bolt for extending the pole column hole from described matrix portion, the nut is twisted on the bolt, second wedge structure of the nut bottom provided with correspondence first wedge structure；The application cover plate of power battery can ensure that pole stablizes affixed, prevent looseness and leakage.
Description
Technical field
The application is related to power battery assembly field, espespecially a kind of cover plate of power battery and its electrokinetic cell.
Background technology
Lithium battery is widely used in various industries, 3C electronic applications, new-energy automobile field etc., and lithium battery because its from
There is characteristic, there is larger safety problem, such as on fire, blast.Particularly in electric automobile field, battery is defeated as power
The key component gone out, is related to the safety of vehicle and the life security of personnel.Cover plate of power battery as battery component core
Part, its reliability is on the normal huge using influenceing of automobile.
The cover plate of general lithium-ion-power cell is made up of cover board body, insulating barrier, pole etc., and the pole is typically used
Nut is threaded through to be fixed on the cover board body, because the environment that vehicle is used is more severe, pole in extreme circumstances
The situation for having loosening occurs, and causes extremely serious consequence.
The content of the invention
In consideration of it, be necessary to provide a kind of stable cover plate of power battery being connected to not releasing on cover board body of pole and
Its battery.
In order to solve the above technical problems, this application provides a kind of cover plate of power battery, including cover board body, it is covered in institute
State the insulating protective layer of cover board body internal layer, the pole being installed on the cover board body and for the pole to be fixed on
Nut on cover board body, the cover board body is provided with pole column hole, and the cover board body lateral surface is located at pole column hole week
Edge is provided with the first wedge structure, and the pole includes being connected to matrix part on the cover board body medial surface and from described matrix
The bolt of the pole column hole is extended in portion, and the nut is twisted on the bolt, and the nut bottom is provided with correspondence described the
Second wedge structure of one wedge structure.
Preferably, first wedge structure is set in the first direction, and second wedge structure is set in a second direction,
The first direction is opposite with the second direction.
Preferably, first wedge structure includes the first vertical portion and upward from first vertical portion bottom angled
Extend the first rake formed, the angle of inclination of first rake is b.
Preferably, second wedge structure is oppositely arranged with first wedge structure, the second wedge structure bag
Include the second vertical portion of laminating relative with first vertical portion and extend obliquely downward to form laminating from second vertical portion
In the second rake of first rake.
Preferably, second rake is identical with the angle of inclination of first rake.
Preferably, first, second vertical portion turns direction perpendicular to the nut.
Preferably, the bolt is provided with external screw thread, and the externally threaded angle of inclination is a, and described first, second tilts
The angle of inclination b in portion is more than the externally threaded angle of inclination a of the bolt.
Preferably, liquid injection hole and explosion-protection equipment are additionally provided with the cover board body.
Preferably, the insulating protective layer is the corrosion resistant high polymer material of the insulation such as PP, PVC, PS, ABS, PC.
In order to solve the above technical problems, present invention also provides a kind of electrokinetic cell, including above-mentioned cover plate of power battery.
Compared to prior art, if the application cover plate of power battery in the pole column hole periphery of the cover board body by setting
Dry first wedge structure, the second wedge shape in nut bottom setting correspondence first wedge structure being sheathed on the pole
Structure, makes the pole be fixed on the cover board body by nut, prevent under the nut deadly condition reverse turn and
Release.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please is used to explain the application, does not constitute the improper restriction to the application.In the accompanying drawings：
Fig. 1 is the profile of the application cover plate of power battery；
The schematic diagram that Fig. 2 is connected for the pole of the application cover plate of power battery with the cover board body.
Embodiment
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the application one
Section Example, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of the application protection.
Refer to shown in Fig. 1, the cover plate of power battery of the application includes cover board body 10, is covered in the cover board body 10
The insulating protective layer 20 of internal layer, the liquid injection hole 40 on the cover board body 10 and explosion-protection equipment 50, it is installed on the cover plate
Pole 30 on body 10 and the nut 60 for the pole 30 to be fixed on cover board body 10.
Refer to shown in Fig. 1, Fig. 2, pole column hole 11, the pole of the cover board body 10 are offered on the cover board body 10
The periphery of hole 11 is provided with some first wedge structures 12 in the first direction, and first wedge structure 12 includes the first vertical portion
121 and upwardly extend the first rake 122 to be formed, first rake from the bottom angled of the first vertical portion 121
122 angle of inclination is b.The insulating protective layer 20 is covered in the medial surface of the cover board body 10 and and electrolyte contacts.
The nut 60 is included located at the internal thread (non-label) of inner chamber and located at the bottom of nut 60 and along second party
To some second wedge structures 61 of setting.Second wedge structure 61 is oppositely arranged with first wedge structure 12, institute
State the second wedge structure 61 and be included in nut 60 and turn relative the second vertical portion fitted in direction and first vertical portion 121
62 and extend obliquely downward to form the second rake 63 for fitting in first rake 122 from second vertical portion 62,
Second rake 63 is identical with the angle of inclination of first rake 122.The first direction and the second direction
Conversely.
The pole 30 includes matrix part 31, the bolt 32 to be formed is upwardly extended from described matrix portion 31 and located at described
External screw thread 33 on bolt 32.The angle of inclination of the external screw thread 33 is a, and the outer rim in described matrix portion 31 is connected to the cover plate
The medial surface of body 10, the bolt 32 extends the another side of the cover board body 10 from the pole column hole 11.The spiral shell
Cap 60 is twisted on the bolt 32 of the pole 30, and when screwing up in place, the second wedge structure 61 on the nut 60 is snapped in
On the first wedge structure 12 on the cover board body 10, i.e., described second rake 63 fits in first rake 122
Fitted with first vertical portion 121 being turned perpendicular to the nut on direction surface, second vertical portion 62.And institute
The angle of inclination b for stating first, second rake 12,61 is more than the angle of inclination a of the screw thread 33, in this way, the nut 60 is twisted
Move in a stroke, it is impossible to second wedge structure 61 is departed from first wedge structure 12, so as to ensure described
Nut 60 is irreversibly fixed on the cover board body 10 with the fixed pole 30 under normal circumstances.
The insulating protective layer 20 is the corrosion resistant high polymer material of the insulation such as PP, PVC, PS, ABS, PC.The liquid injection hole
For electrolyte will to be injected after cell package.The explosion-protection equipment is used for air pressure in extreme circumstances and is increased to after certain value, arranges
Go out internal gas to discharge pressure.
Compared to prior art, the application cover plate of power battery passes through in the periphery of pole column hole 11 of the cover board body 10
Some first wedge structures 12 are set, correspondence the first wedge shape knot is set in the bottom of nut 60 being sheathed on the pole 30
Second wedge structure 61 of structure 12, makes the pole 30 be fixed on the cover board body 10, prevents the spiral shell by nut 60
Inversely turn and release under female 60 deadly conditions.
It should also be noted that, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Comprising so that process, method, commodity or equipment including a series of key elements are not only including those key elements, but also wrap
Include other key elements being not expressly set out, or also include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that wanted including described
Also there is other identical element in process, method, commodity or the equipment of element.
Embodiments herein is the foregoing is only, the application is not limited to.For those skilled in the art
For, the application can have various modifications and variations.It is all any modifications made within spirit herein and principle, equivalent
Replace, improve etc., it should be included within the scope of claims hereof.
Claims (10)
1. a kind of cover plate of power battery, including cover board body, it is covered in the insulating protective layer of the cover board body internal layer, is installed on
Set on pole on the cover board body and the nut for the pole to be fixed on cover board body, the cover board body
There is pole column hole, it is characterised in that the cover board body lateral surface is located at the pole hole peripheral and is provided with the first wedge structure, described
Pole includes the matrix part being connected on the cover board body medial surface and the spiral shell for extending the pole column hole from described matrix portion
Bolt, the nut is twisted on the bolt, second wedge shape knot of the nut bottom provided with correspondence first wedge structure
Structure.
2. cover plate of power battery as claimed in claim 1, it is characterised in that first wedge structure is set in the first direction
Put, second wedge structure is set in a second direction, and the first direction is opposite with the second direction.
3. cover plate of power battery as claimed in claim 2, it is characterised in that it is vertical that first wedge structure includes first
Portion and upwardly extend the first rake to be formed, the inclination angle of first rake from first vertical portion bottom angled
Spend for b.
4. cover plate of power battery as claimed in claim 3, it is characterised in that second wedge structure and the described first wedge shape
Structure is oppositely arranged, the second vertical portion of second wedge structure including laminating relative with first vertical portion and from institute
State the second vertical portion and extend obliquely downward the second rake to be formed and fit in first rake.
5. cover plate of power battery as claimed in claim 4, it is characterised in that second rake and first rake
Angle of inclination it is identical.
6. cover plate of power battery as claimed in claim 4, it is characterised in that first, second vertical portion is perpendicular to described
Nut turns direction.
7. cover plate of power battery as claimed in claim 4, it is characterised in that the bolt is provided with external screw thread, the outer spiral shell
The angle of inclination of line is a, and the angle of inclination b of first, second rake is more than the externally threaded angle of inclination a of the bolt.
8. cover plate of power battery as claimed in claim 1, it is characterised in that be additionally provided with liquid injection hole on the cover board body
With explosion-protection equipment.
9. cover plate of power battery as claimed in claim 1, it is characterised in that the insulating protective layer be PP, PVC, PS, ABS,
The corrosion resistant high polymer material of the insulation such as PC.
10. a kind of electrokinetic cell, it is characterised in that including the cover plate of power battery as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377216.3A CN107017361A (en) | 2017-05-24 | 2017-05-24 | Cover plate of power battery and its electrokinetic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377216.3A CN107017361A (en) | 2017-05-24 | 2017-05-24 | Cover plate of power battery and its electrokinetic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107017361A true CN107017361A (en) | 2017-08-04 |
Family
ID=59451373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710377216.3A Pending CN107017361A (en) | 2017-05-24 | 2017-05-24 | Cover plate of power battery and its electrokinetic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107017361A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404326A (en) * | 2023-06-08 | 2023-07-07 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB829017A (en) * | 1956-10-13 | 1960-02-24 | Robert Alexander Wrigley | Improvements in a lock washer and nut assembly for a screw threaded member |
| KR20030033594A (en) * | 2001-10-24 | 2003-05-01 | 삼성에스디아이 주식회사 | Rectangular type secondary battery |
| KR20040099525A (en) * | 2003-05-19 | 2004-12-02 | 삼성에스디아이 주식회사 | Prismatic type lithium secondary battery having the safety vent |
| US20060216129A1 (en) * | 2005-03-24 | 2006-09-28 | Chen-Mao Lin | Loose-proof screw bolt |
| CN102208575A (en) * | 2011-04-22 | 2011-10-05 | 宁波世捷新能源科技有限公司 | Novel lithium ion battery cover plate |
| US20120052370A1 (en) * | 2010-08-31 | 2012-03-01 | Jong-Seok Moon | Rechargeable battery |
| JP2012094250A (en) * | 2010-10-22 | 2012-05-17 | Hitachi Maxell Energy Ltd | Sealed battery |
| CN202405332U (en) * | 2011-12-12 | 2012-08-29 | 东莞新能源科技有限公司 | Power battery and top cover thereof |
| CN102878182A (en) * | 2012-09-28 | 2013-01-16 | 三一重型装备有限公司 | Locknut |
| CN203009535U (en) * | 2012-12-17 | 2013-06-19 | 三一重型装备有限公司 | Connection device and scraper conveyer |
| WO2013107732A1 (en) * | 2012-01-19 | 2013-07-25 | Robert Bosch Gmbh | Housing cover for a battery housing and a method for producing said housing cover |
| CN203871390U (en) * | 2014-04-08 | 2014-10-08 | 深圳市科达利实业股份有限公司 | Power battery cover plate with electrocorrosion resistance |
| CN203926321U (en) * | 2014-05-29 | 2014-11-05 | 陈舒光 | A kind of securing means of the anti-Anti-theft-dismounting that relaxes |
| CN104389883A (en) * | 2014-09-12 | 2015-03-04 | 奥展实业有限公司 | Powerful locking nut structure |
| CN204375800U (en) * | 2014-12-19 | 2015-06-03 | 郑州市合力铜业有限公司 | Cover board for pole type lithium battery and use the post type lithium battery of this cover plate |
| CN204668367U (en) * | 2015-05-22 | 2015-09-23 | 苏州创能新能源实业有限公司 | Cover plate of power lithium |
| CN205564830U (en) * | 2016-02-24 | 2016-09-07 | 广东科技学院 | High leakproofness power battery top cap subassembly and battery |
| CN205920994U (en) * | 2016-05-05 | 2017-02-01 | 深圳市瑞德丰精密制造有限公司 | Insulation system between utmost point post and apron |
| CN106410107A (en) * | 2016-11-29 | 2017-02-15 | 深圳市长盈精密技术股份有限公司 | Power battery cover plate and battery polar post assembly thereof |
| CN106450064A (en) * | 2016-11-29 | 2017-02-22 | 深圳市长盈精密技术股份有限公司 | Power battery cover plate and power battery |
| CN206163544U (en) * | 2016-10-26 | 2017-05-10 | 东莞市盖瓷新能源科技有限公司 | Power battery utmost point post pottery sealing device |
| CN206976412U (en) * | 2017-05-24 | 2018-02-06 | 深圳市长盈精密技术股份有限公司 | Cover plate of power battery and its electrokinetic cell |
-
2017
- 2017-05-24 CN CN201710377216.3A patent/CN107017361A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB829017A (en) * | 1956-10-13 | 1960-02-24 | Robert Alexander Wrigley | Improvements in a lock washer and nut assembly for a screw threaded member |
| KR20030033594A (en) * | 2001-10-24 | 2003-05-01 | 삼성에스디아이 주식회사 | Rectangular type secondary battery |
| KR20040099525A (en) * | 2003-05-19 | 2004-12-02 | 삼성에스디아이 주식회사 | Prismatic type lithium secondary battery having the safety vent |
| US20060216129A1 (en) * | 2005-03-24 | 2006-09-28 | Chen-Mao Lin | Loose-proof screw bolt |
| US20120052370A1 (en) * | 2010-08-31 | 2012-03-01 | Jong-Seok Moon | Rechargeable battery |
| JP2012094250A (en) * | 2010-10-22 | 2012-05-17 | Hitachi Maxell Energy Ltd | Sealed battery |
| CN102208575A (en) * | 2011-04-22 | 2011-10-05 | 宁波世捷新能源科技有限公司 | Novel lithium ion battery cover plate |
| CN202405332U (en) * | 2011-12-12 | 2012-08-29 | 东莞新能源科技有限公司 | Power battery and top cover thereof |
| WO2013107732A1 (en) * | 2012-01-19 | 2013-07-25 | Robert Bosch Gmbh | Housing cover for a battery housing and a method for producing said housing cover |
| CN102878182A (en) * | 2012-09-28 | 2013-01-16 | 三一重型装备有限公司 | Locknut |
| CN203009535U (en) * | 2012-12-17 | 2013-06-19 | 三一重型装备有限公司 | Connection device and scraper conveyer |
| CN203871390U (en) * | 2014-04-08 | 2014-10-08 | 深圳市科达利实业股份有限公司 | Power battery cover plate with electrocorrosion resistance |
| CN203926321U (en) * | 2014-05-29 | 2014-11-05 | 陈舒光 | A kind of securing means of the anti-Anti-theft-dismounting that relaxes |
| CN104389883A (en) * | 2014-09-12 | 2015-03-04 | 奥展实业有限公司 | Powerful locking nut structure |
| CN204375800U (en) * | 2014-12-19 | 2015-06-03 | 郑州市合力铜业有限公司 | Cover board for pole type lithium battery and use the post type lithium battery of this cover plate |
| CN204668367U (en) * | 2015-05-22 | 2015-09-23 | 苏州创能新能源实业有限公司 | Cover plate of power lithium |
| CN205564830U (en) * | 2016-02-24 | 2016-09-07 | 广东科技学院 | High leakproofness power battery top cap subassembly and battery |
| CN205920994U (en) * | 2016-05-05 | 2017-02-01 | 深圳市瑞德丰精密制造有限公司 | Insulation system between utmost point post and apron |
| CN206163544U (en) * | 2016-10-26 | 2017-05-10 | 东莞市盖瓷新能源科技有限公司 | Power battery utmost point post pottery sealing device |
| CN106410107A (en) * | 2016-11-29 | 2017-02-15 | 深圳市长盈精密技术股份有限公司 | Power battery cover plate and battery polar post assembly thereof |
| CN106450064A (en) * | 2016-11-29 | 2017-02-22 | 深圳市长盈精密技术股份有限公司 | Power battery cover plate and power battery |
| CN206976412U (en) * | 2017-05-24 | 2018-02-06 | 深圳市长盈精密技术股份有限公司 | Cover plate of power battery and its electrokinetic cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404326A (en) * | 2023-06-08 | 2023-07-07 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116404326B (en) * | 2023-06-08 | 2023-09-05 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
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