CN202585558U - Power battery and top cover thereof - Google Patents
Power battery and top cover thereof Download PDFInfo
- Publication number
- CN202585558U CN202585558U CN2012201160019U CN201220116001U CN202585558U CN 202585558 U CN202585558 U CN 202585558U CN 2012201160019 U CN2012201160019 U CN 2012201160019U CN 201220116001 U CN201220116001 U CN 201220116001U CN 202585558 U CN202585558 U CN 202585558U
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- CN
- China
- Prior art keywords
- top cover
- pole
- electrokinetic cell
- pole post
- coping plate
- 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 - Lifetime
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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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- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model belongs to the technical field of power batteries and in particular relates to a top cover of a power battery. The top cover of the power battery comprises a top cover piece, a pole post, an anti-rotation insulating post, a sealing ring, an upper insulator and a high-temperature-resistant insulating piece, wherein the anti-rotation insulating post is arranged on the base part of the pole post; the sealing ring is sleeved on the pole post; the upper insulator is sleeved on the pole post; a clamping spring is clamped on the post body part of the pole post; the high-temperature-resistant insulating piece is attached between the top cover piece and the pole post; and the sealing ring and the anti-rotation insulating post are coated in the high-temperature-resistant insulating piece. Compared with the prior art, the top cover of the power battery has the advantages that the top cover has high-temperature resistance, the pole post is prevented from rotating, and short circuit between the pole post and the top cover piece is avoided under a high-temperature condition; the pole post is not loosened in a vibration environment; and moreover, the pole post and the top cover piece are reliably sealed and connected with each other, short circuit between the pole post and the top cover piece, between a positive pole post and a negative pole post and between a positive tab and a negative tab is avoided when a battery cell is extruded, and thus the safety performance of the power battery is obviously improved. In addition, the utility model also discloses the power battery comprising the top cover.
Description
Technical field
The utility model belongs to the power battery technology field, relates in particular to a kind ofly to have good safety and can and connect reliable electrokinetic cell top cover, and comprises the electrokinetic cell of this top cover.
Background technology
Enhancing along with development of modern society and people's environmental consciousness; More and more equipments is selected with chargeable secondary cell as power supply; Like mobile phone, notebook computer, electric tool, electric automobile and energy-accumulating power station or the like, this application for chargeable secondary cell provides wide space with development.
Wherein, electric automobile and energy-accumulating power station etc. generally need to use to have jumbo electrokinetic cell.In order to guarantee the fail safe in the electrokinetic cell use, generally need to use metal shell.
Specifically; Electrokinetic cell generally comprises power electricity core and the metal shell that is used to hold said power electricity core; Power electricity core front end is provided with positive pole ear and negative lug, and metal shell generally comprises housing main body and top cover, and said top cover is provided with positive terminal, negative terminal and liquid injection hole.During assembling, earlier positive pole ear and negative lug are welded to connect with positive terminal and negative terminal respectively, then electric core are placed in the housing main body, and, be assembled into the semi-finished product battery top cover and housing main body welded seal.Again through fluid injection, change into series of processes such as capacity and promptly obtain electrokinetic cell.
In general, the cap structure of safety should reach following requirement at least: pole is anti-rotation; Can not short circuit between pole and the top cover under the high-temperature condition; Under the vibration environment pole can not become flexible, between pole and the top cover sealing reliable; Electricity core when being squeezed between pole and the top cover and between the positive and negative terminals, can not contact short circuit between the positive and negative lug.
Wherein, Existing electrokinetic cell top cover for the sealing that realizes battery and insulation to improve the security performance of electrokinetic cell; Generally can between the upper surface of pole (comprising positive terminal and negative terminal) and coping plate, upper insulator be set; Between the lower surface of pole (comprising positive terminal and negative terminal) and coping plate, the anti-rotation insulated column is set, between anti-rotation insulated column and coping plate, also sealing ring can be set, to guarantee sealing.But this structure can not reach above-mentioned requirements fully, and the safety of electrokinetic cell top cover can not be guaranteed fully.
In view of this, necessaryly provide a kind of and have good safety and can and connect reliable electrokinetic cell top cover, and the electrokinetic cell that comprises this top cover.
The utility model content
One of purpose of the utility model is: to the deficiency of prior art, have the good safety ability and connect reliable electrokinetic cell top cover and provide a kind of.
To achieve these goals, the utility model adopts following technical scheme:
A kind of electrokinetic cell top cover comprises coping plate, pole, anti-rotation insulated column, sealing ring and upper insulator, and said pole comprises base portion and from the upwardly extending trunk portion of base portion; Said coping plate is provided with liquid injection hole, pole hole and explosion-proof valve; Said anti-rotation insulated column is installed on the base portion of pole, and said sealing ring is set on the pole and is positioned at the coping plate below, and said upper insulator is set on the pole and is positioned at said coping plate top; Said electrode column sealing is installed in the pole hole; The trunk portion of said pole is provided with cannelure, is connected with jump ring in the said cannelure, also comprises the high-temperature insulation sheet; Said high-temperature insulation sheet fits between coping plate and the pole, and coats sealing ring and anti-rotation insulated column wherein.
Wherein, The high-temperature insulation sheet fits between coping plate and the pole through the mode of injection moulding or assembling; The material of high-temperature insulation sheet is insulation, high temperature resistant, corrosion-resistant materials such as polypropylene (PP), PETG (PET), mica, anodized aluminium, and coping plate is processed by metal materials such as stainless steel or aluminium.Said upper insulator and anti-rotation insulated column are to be processed by insulating material such as pottery high temperature resistant and that intensity is high.Said sealing ring is that, corrosion resisting elastic encapsulant high temperature resistant by fluorubber etc. processed.Said jump ring is processed by stainless steel, spring steel elastomeric material.
When battery was in the vibration environment, the existence of high-temperature insulation sheet can well prevent anti-rotation insulated column Cracking Failure, also can well prevent the expansion inefficacy of sealing ring in electrolyte.When electric core was squeezed, this structure can also well prevent the contact short circuit between pole and the coping plate.
A kind of improvement as the utility model electrokinetic cell top cover; Also comprise high temperature resistant plastic cement; Said high temperature resistant plastic cement is coated on the outer surface of pole trunk portion, upper insulator and jump ring; When battery was in the vibration environment, this structure can well prevent the upper insulator Cracking Failure, and was connected inefficacy between jump ring and the pole.High temperature resistant plastic cement is to be coated on pole, upper insulator and jump ring outer surface through modes such as injection moulding or tight fit assemblings.High temperature resistant plastic cement is high temperature resistant by PP, PET etc., corrosion-resistant material is processed.
As a kind of improvement of the utility model electrokinetic cell top cover, the position corresponding to explosion-proof valve on the coping plate on the said high-temperature insulation sheet is provided with " U " shape structure.When electric core is squeezed, should " U " shape structure can well prevent between positive terminal and the negative terminal, and the contact short circuit between anode ear and the negative electrode lug.
As a kind of improvement of the utility model electrokinetic cell top cover, the position corresponding to liquid injection hole on the coping plate on the said high-temperature insulation sheet is provided with through hole.
As a kind of improvement of the utility model electrokinetic cell top cover, said base portion is provided with installing hole, and said anti-rotation insulated column is installed in the said installing hole.
As a kind of improvement of the utility model electrokinetic cell top cover, said pole comprises positive terminal and negative terminal.
With respect to prior art, the utility model has the following advantages at least: high temperature resistant, pole is anti-rotation, is not short-circuited between pole and the coping plate under the high-temperature condition; Pole is not loosening under the vibration environment; Sealing is reliable between pole and the coping plate, connect reliable, can contact short circuit when electric core is squeezed between pole and the coping plate and between positive terminal and the negative terminal, between anode ear and the negative electrode lug, significantly improve the security performance of electrokinetic cell; In addition, the utility model is simple in structure, and assembling is easy, and cost is low, is beneficial to the batch process of battery.
Another purpose of the utility model is to provide a kind of electrokinetic cell; Comprise power electricity core, be used to hold the metal shell of said power electricity core; And be poured into the electrolyte in the metal shell; Said metal shell comprises housing main body and the top cover that is tightly connected, and said top cover is the described electrokinetic cell top cover of above-mentioned paragraph.
With respect to prior art, the electrokinetic cell of the utility model is owing to be provided with high temperature resistant plastic cement and high-temperature insulation sheet on top cover, so has good security performance, can guarantee electrokinetic cell safe in utilization in electric tool etc.
Description of drawings
Fig. 1 is the stereogram of the utility model electrokinetic cell top cover;
Fig. 2 is the cutaway view of the utility model electrokinetic cell top cover;
Fig. 3 is the enlarged drawing of A part among Fig. 2;
Fig. 4 is the exploded view of the utility model electrokinetic cell top cover;
Fig. 5 is the cutaway view of the utility model electrokinetic cell.
Embodiment
Extremely shown in Figure 4 like Fig. 1; A kind of electrokinetic cell top cover of the utility model comprises coping plate 40, pole 10, anti-rotation insulated column 60, sealing ring 50 and upper insulator 30, and said pole 10 comprises base portion 11 and from base portion 11 upwardly extending trunk portion 12; Said coping plate 40 is provided with liquid injection hole 41, pole hole 42 and explosion-proof valve 43; Said anti-rotation insulated column 60 is installed on the base portion 11 of pole 10, and said sealing ring 50 is set on the pole 10 and is positioned at coping plate 40 belows, and said upper insulator 30 is set on the pole 10 and is positioned at said coping plate 40 tops; Said pole 10 sealings are installed in the pole hole 42; The trunk portion 12 of said pole 10 is provided with cannelure, is connected with jump ring 20 in the said cannelure, also comprises high-temperature insulation sheet 80; Said high-temperature insulation sheet 80 fits between coping plate 40 and the pole 10, and coats sealing ring 50 and anti-rotation insulated column 60 wherein.Wherein, High-temperature insulation sheet 80 fits between coping plate 40 and the pole 10 through the mode of injection moulding or assembling; The material of high-temperature insulation sheet 80 is insulation such as polypropylene (PP), PETG (PET), mica, anodized aluminium, high temperature resistant, corrosion-resistant material, and coping plate 40 is processed by metal materials such as stainless steel or aluminium.Said upper insulator 30 is to be processed by insulating material such as pottery high temperature resistant and that intensity is high with anti-rotation insulated column 60.Said sealing ring 50 is that, corrosion resisting elastic encapsulant high temperature resistant by fluorubber etc. processed.Said jump ring is processed by stainless steel, spring steel elastomeric material.
When battery was in the vibration environment, the existence of high-temperature insulation sheet 80 can well prevent anti-rotation insulated column 60 Cracking Failure, also can well prevent the expansion inefficacy of sealing ring 50 in electrolyte.When electric core was squeezed, this structure can also well prevent the contact short circuit between pole 10 and the coping plate 40.
Wherein, This top cover also comprises high temperature resistant plastic cement 70; Said high temperature resistant plastic cement 70 is coated on the outer surface of trunk portion 12, upper insulator 30 and the jump ring 20 of pole 10; When battery was in the vibration environment, this structure can well prevent upper insulator 30 Cracking Failure, and was connected inefficacy between jump ring 20 and the pole 10.High temperature resistant plastic cement 70 is to be coated on pole 10, upper insulator 30 and jump ring 20 outer surfaces through modes such as injection moulding or tight fit assemblings.High temperature resistant plastic cement 70 is high temperature resistant by PP, PET etc., corrosion-resistant material is processed.
Position corresponding to explosion-proof valve 43 on the coping plate 40 on the said high-temperature insulation sheet 80 is provided with " U " shape structure 81.When electric core is squeezed, should " U " shape structure can well prevent between positive terminal and the negative terminal, and the contact short circuit between anode ear and the negative electrode lug.
Position corresponding to liquid injection hole 41 on the coping plate 40 on the said high-temperature insulation sheet 8 is provided with through hole 82.
Said base portion 11 is provided with installing hole 13, and said anti-rotation insulated column 60 is installed in the said installing hole 13.
Said pole 10 comprises positive terminal and negative terminal.
During the assembling of the utility model electrokinetic cell top cover, at first, sealing ring 50 is inserted on the pole 10; Secondly, anti-rotation insulated column 60 is packed in the installing hole 13 of base portion 11 of pole 10; Once more, battery cap sheet 40 is inserted on the trunk portion 12 of pole 10; Subsequently, upper insulator 30 is assembled on the trunk portion 12 of pole 10; Subsequently, be assembled to jump ring 20 in the cannelure of trunk portion 12 of pole 10; Subsequently, be coated on high temperature resistant plastic cement 70 through the mode of injection moulding or tight fit assembling the outer surface of pole 10, upper insulator 30, jump ring 20; At last, fit in the mode of high-temperature insulation sheet 80 between coping plate 40 and the pole 10, and coat sealing ring 50 and anti-rotation insulated column 60 wherein through injection moulding or assembling.
With respect to prior art, the utility model has the following advantages at least: high temperature resistant, pole is anti-rotation, is not short-circuited between pole 10 and the top cover 40 under the high-temperature condition; Pole 10 is not loosening under the vibration environment; Sealing is reliable between pole 10 and the coping plate 40, connect reliable, can contact short circuit when electric core is squeezed between pole 10 and the coping plate 40 and between positive terminal and the negative terminal, between anode ear and the negative electrode lug, significantly improve the security performance of electrokinetic cell; Simple in structure, assembling is easy, and cost is low, is beneficial to the batch process of battery.
As shown in Figure 5; The utility model electrokinetic cell; Comprise power electricity core 9, be used to hold the metal shell 2 of said power electricity core 9, and be poured into the electrolyte in the metal shell 2, the front end of said power electricity core 9 is provided with positive pole ear 91 and negative lug 92; Said metal shell 2 comprises the housing main body 21 and top cover 1 that is tightly connected, and said top cover 1 is the described electrokinetic cell top cover of above-mentioned paragraph.Said pole 10 comprises positive terminal and negative terminal, and positive pole ear 91 is welded to connect with positive terminal and negative terminal respectively with negative lug 92.
The assembling process of the utility model electrokinetic cell is following: at first; With the positive pole ear 91 of power electricity core 9 and negative lug 92 respectively with top cover 1 on positive terminal and the negative terminal installed be welded to connect, the electric core 9 of power that will be connected with top cover 1 then is positioned in the housing main body 21; Secondly, in housing main body 21, pour into electrolyte; At last, top cover 1 is installed on the top of housing main body 11 through laser welded seal, promptly accomplishes the assembling of the utility model electrokinetic cell.During use, an end of pole 10 and power electricity core 9 electrically connect, and the other end is connected with external circuit.
With respect to prior art, therefore the electrokinetic cell of the utility model has good security performance owing on top cover 1, be provided with high temperature resistant plastic cement 7 and high-temperature insulation sheet 8, can guarantee electrokinetic cell safe in utilization in electric tool etc.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (7)
1. an electrokinetic cell top cover comprises coping plate, pole, anti-rotation insulated column, sealing ring and upper insulator, and said pole comprises base portion and from the upwardly extending trunk portion of base portion; Said coping plate is provided with liquid injection hole, pole hole and explosion-proof valve; Said anti-rotation insulated column is installed on the base portion of pole, and said sealing ring is set on the pole and is positioned at the coping plate below, and said upper insulator is set on the pole and is positioned at said coping plate top; Said electrode column sealing is installed in the pole hole; The trunk portion of said pole is provided with cannelure, is connected with jump ring in the said cannelure, it is characterized in that: also comprise the high-temperature insulation sheet; Said high-temperature insulation sheet fits between coping plate and the pole, and coats sealing ring and anti-rotation insulated column wherein.
2. electrokinetic cell top cover according to claim 1 is characterized in that: also comprise high temperature resistant plastic cement, said high temperature resistant plastic cement is coated on the outer surface of pole trunk portion, upper insulator and jump ring.
3. electrokinetic cell top cover according to claim 1 is characterized in that: the position corresponding to explosion-proof valve on the coping plate on the said high-temperature insulation sheet is provided with " U " shape structure.
4. electrokinetic cell top cover according to claim 1 is characterized in that: the position corresponding to liquid injection hole on the coping plate on the said high-temperature insulation sheet is provided with through hole.
5. electrokinetic cell top cover according to claim 1 is characterized in that: said base portion is provided with installing hole, and said anti-rotation insulated column is installed in the said installing hole.
6. electrokinetic cell top cover according to claim 1 is characterized in that: said pole comprises positive terminal and negative terminal.
7. electrokinetic cell; Comprise power electricity core, be used to hold the metal shell of said power electricity core; And be poured into the electrolyte in the metal shell; Said metal shell comprises housing main body and the top cover that is tightly connected, and it is characterized in that: said top cover is each described electrokinetic cell top cover of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201160019U CN202585558U (en) | 2012-03-26 | 2012-03-26 | Power battery and top cover thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201160019U CN202585558U (en) | 2012-03-26 | 2012-03-26 | Power battery and top cover thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585558U true CN202585558U (en) | 2012-12-05 |
Family
ID=47254936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201160019U Expired - Lifetime CN202585558U (en) | 2012-03-26 | 2012-03-26 | Power battery and top cover thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202585558U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872275A (en) * | 2014-03-03 | 2014-06-18 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
| CN105186013A (en) * | 2015-09-30 | 2015-12-23 | 深圳市瑞德丰精密制造有限公司 | Installation method for battery jump ring and installation device |
| US9337451B2 (en) | 2013-07-30 | 2016-05-10 | Johnson Controls Technology Company | System and method for roller interconnection of battery cells |
| CN105576159A (en) * | 2014-10-09 | 2016-05-11 | 东莞新能源科技有限公司 | Power cell and power cell top cover |
| CN109546018A (en) * | 2018-11-27 | 2019-03-29 | 欣旺达电子股份有限公司 | Battery cap and the power battery for using the battery cap |
| CN111146373A (en) * | 2020-01-11 | 2020-05-12 | 苏州炬鸿通讯电脑科技有限公司 | Lithium battery cover plate and lower insulating pad connecting structure capable of achieving efficient assembly |
-
2012
- 2012-03-26 CN CN2012201160019U patent/CN202585558U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9337451B2 (en) | 2013-07-30 | 2016-05-10 | Johnson Controls Technology Company | System and method for roller interconnection of battery cells |
| CN103872275A (en) * | 2014-03-03 | 2014-06-18 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
| CN105576159A (en) * | 2014-10-09 | 2016-05-11 | 东莞新能源科技有限公司 | Power cell and power cell top cover |
| CN105186013A (en) * | 2015-09-30 | 2015-12-23 | 深圳市瑞德丰精密制造有限公司 | Installation method for battery jump ring and installation device |
| CN105186013B (en) * | 2015-09-30 | 2018-01-19 | 深圳市瑞德丰精密制造有限公司 | A kind of installation method and erecting device of battery jump ring |
| CN109546018A (en) * | 2018-11-27 | 2019-03-29 | 欣旺达电子股份有限公司 | Battery cap and the power battery for using the battery cap |
| CN109546018B (en) * | 2018-11-27 | 2021-09-17 | 欣旺达电子股份有限公司 | Battery top cover and power battery using same |
| CN111146373A (en) * | 2020-01-11 | 2020-05-12 | 苏州炬鸿通讯电脑科技有限公司 | Lithium battery cover plate and lower insulating pad connecting structure capable of achieving efficient assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180103 Address after: 352100 Jiaocheng District of Ningde City, Fujian Province Zhang Wan Zhen Xingang Road No. 1 Patentee after: Contemporary Amperex Technology Co.,Ltd. Address before: 352100 Ningde, East China Overseas Economic Development Zone, Zheng Road, No. 1, No. Co-patentee before: DONGGUAN AMPEREX TECHNOLOGY Ltd. Patentee before: Ningde Amperex Technology Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |