CN202585544U - Power battery and top cover thereof - Google Patents
Power battery and top cover thereof Download PDFInfo
- Publication number
- CN202585544U CN202585544U CN2012200798094U CN201220079809U CN202585544U CN 202585544 U CN202585544 U CN 202585544U CN 2012200798094 U CN2012200798094 U CN 2012200798094U CN 201220079809 U CN201220079809 U CN 201220079809U CN 202585544 U CN202585544 U CN 202585544U
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- CN
- China
- Prior art keywords
- pole
- top cover
- electrokinetic cell
- poles
- cell top
- 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
-
- 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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the technical field of power batteries, and in particular relates to a power battery and a top cover thereof. The top cover comprises a top cover sheet, poles, lower insulation bodies, sealing rings and upper insulation bodies, wherein liquid injection holes and pole holes are formed in the top cover sheet; the lower insulation bodies are arranged on the poles; the sealing rings are sleeved on the poles and are positioned below the top cover sheet; the upper insulation bodies are sleeved on the poles and are arranged in the pole holes; grooves are formed in the poles; clamping rings are clamped in the grooves; and the poles are arranged in a bracket. Compared with the prior art, the top cover has the advantages that under the common action of the clamping rings, the bracket and thermal shrinkage membranes, the poles can be stably arranged on the top cover sheet, so that rotation of the poles of the battery, which is caused by vibration, high temperature or outer force, during use of the battery can be effectively prevented, and a short circuit problem caused by rotation of the poles under the action of high temperature and outer force is solved; and therefore, the safety of the battery is greatly improved. Furthermore, 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 of electrokinetic cell and top cover thereof.
Background technology
At present, the fail safe of automobile power cell more and more receives publicity, and especially the fail safe under abuse conditions such as big electric current, high temperature becomes the important bottleneck that the restricting vehicle electrokinetic cell develops especially.
General electrokinetic cell anti-rotation structure generally has two kinds of schemes at present: a kind of scheme is only to rotate to prevent pole through the plastic stent of insulation and the tight fit of pole, but battery is under high-temperature condition, after for example temperature surpasses 300 ℃; Plastic stent melts distortion already; At this moment, vibrated or the external force effect under, the pole of rotation and battery container come in contact and produce short circuit; Be the anti-rotation disabler, this brings great safety problem to battery.
Another kind of scheme is that the battery cap sheet is provided with non-circular endoporus; Pole is provided with the pylon that matches with non-circular endoporus; Between pole pylon and the coping plate endoporus and be provided with the sealing ring of insulation, but under hot conditions, the sealing ring of insulation fusing distortion; Can come in contact between pole pylon that rotates and the coping plate and produce short-circuit risks, i.e. anti-rotation disabler.
Therefore, the current driving force battery terminal post anti-rotation device can not satisfy the requirement of electrokinetic cell.
In view of this, necessary a kind of electrokinetic cell top cover that can prevent effectively that pole from rotating is provided, 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 existence, and a kind of electrokinetic cell top cover that can prevent effectively that pole from rotating is provided.
In order to achieve the above object, the technical scheme of the utility model employing is:
A kind of electrokinetic cell top cover comprises coping plate, pole, lower insulator, sealing ring and upper insulator, and said coping plate is provided with liquid injection hole and pole hole; Said lower insulator is installed on the 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 installed in the pole hole; Said pole is provided with groove, and the groove cross sectional shape can be wedge shape, square, circle etc., is connected with snap ring in the said groove; Snap ring can snap in this groove tightly; Vibrated or external force is done the time spent, snap ring can not come off, and the position of groove makes snap ring can compress upper insulator tightly simultaneously; Play pressuring action jointly with upper insulator, connect through snap ring and be installed on the said battery cap sheet said pole is stable.These snap ring characteristics are to be easy to assembling, and are simple in structure, low price, and it is little that thickness direction is compared locking nut, improved the whole power battery space, thereby improve the electrical core of power battery capacity.Said pole is installed in the support.
Wherein, the pole hole on the coping plate is easy to processing, and convenient location prevents that the relative coping plate of upper insulator from rotating when installing insulator simultaneously.
As a kind of improvement of the utility model electrokinetic cell top cover, the exposed parts of said pole, snap ring and upper insulator posts heat shrinkage film, and pole, snap ring and upper insulator are bundled together tightly.This heat shrinkage film low price, easy to assembly, thus can prevent effectively that pole, snap ring from contacting with external conductive equipment is short-circuited.
As a kind of improvement of the utility model electrokinetic cell top cover, also be connected with brace on the said pole.
As a kind of improvement of the utility model electrokinetic cell top cover, said pole comprises base portion and from the upwardly extending trunk portion of base portion.
As a kind of improvement of the utility model electrokinetic cell top cover, said base portion is provided with installing hole, and installing hole quantity is two or more, and said lower insulator 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.
As a kind of improvement of the utility model electrokinetic cell top cover, said upper insulator is a ceramic ring, and the upper insulator of ceramic material has effect high temperature resistant and insulation, rotates even make top cover at high temperature also be not easy undermined.
As a kind of improvement of the utility model electrokinetic cell top cover, said support is provided with buckle.With described pole and support chucking, make pole and groups of holders dress up one through buckle.After this support and pole are gone into battery container, can effectively prevent pole when receiving external force, prevent that pole from rotating.
Particularly, in the utility model electrokinetic cell top cover, pole is formed by base portion with from the upwardly extending trunk portion of base portion respectively, and trunk portion is divided into top and middle part again; Wherein, top is the cylinder that has groove, and the middle part is the pylon of track shape for cross section, and this is simple in structure; Be easy to processing, snap in simultaneously in the upper insulator track shape endoporus, play the anti-rotation effect, have installing hole on the base portion; Upper insulator one side is provided with the track shape boss structure of perforate, makes things convenient for the location of external electric equipment, and its outside is inlayed with track shape coping plate endoporus and cooperated, and the inboard is socketed on the track shape pylon at pole middle part; Prevent that pole from rotating relative to upper insulator, simultaneously, make between pole and the coping plate and insulate that opposite side is provided with groove; Snap ring is inserted in the groove, prevents that snap ring from rotating, and interferes or produce short risk with external electric equipment.Lower insulator places between pole base portion and the coping plate; And be embedded in the installing hole of pole base portion; Be provided with sealing ring between pole and the coping plate, brace is connected with positive and negative terminals, and heat shrinkage film tightly is attached at the exposed parts of pole, snap ring, upper insulator; The support that has buckle is assembled into one positive and negative terminals and support, and positive and negative terminals and support are combined together tightly.
With respect to prior art; The utility model can stably be installed on the coping plate pole through the acting in conjunction of snap ring, support and heat shrinkage film; Thereby prevent the rotation of battery electrode column when receiving vibration, high temperature or external force in the battery use effectively; Simultaneously can effectively solve the Insulation Problems between pole and coping plate, pole and the battery container again, prevent that pole rotates the short circuit problem that causes under high temperature and the external force effect, thus the fail safe that greatly improves battery.
Another purpose of the utility model is to provide a kind of electrokinetic cell; Comprise power electricity core, be used to hold the battery container of said power electricity core; And be poured into the electrolyte in the battery container; Said battery container 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, therefore the utility model can avoid the short circuit problem that the pole rotation causes under high temperature and the external force effect preferably owing to adopted the top cover with anti-rotation function, has higher safety performance.
Description of drawings
Fig. 1 is the decomposing schematic representation of the utility model electrokinetic cell top cover;
Fig. 2 is the stereogram of pole in the utility model;
Fig. 3 is the structural representation of the utility model electrokinetic cell;
Fig. 4 is the cutaway view of the utility model electrokinetic cell.
Embodiment
Below in conjunction with Figure of description the utility model is further described:
As depicted in figs. 1 and 2; The utility model electrokinetic cell top cover comprises coping plate 11, pole 12, lower insulator 13, sealing ring 14 and upper insulator 15, and said coping plate 11 is provided with liquid injection hole 111 and pole hole 112; Said lower insulator 13 is installed on the pole 12; Said sealing ring 14 is set on the pole 12 and is positioned at coping plate 11 belows, and said upper insulator 15 is set on the pole 12 and is installed in the pole hole 112, and said pole 12 is provided with groove; Be connected with snap ring 16 in the said groove, said pole 12 is installed in the support 17.Wherein, the exposed parts of said pole 12, snap ring 16 and upper insulator 15 posts heat shrinkage film, also is connected with brace 18 on the said pole 12.Said pole 12 comprises positive terminal and negative terminal, and said upper insulator 15 is a ceramic ring.
Particularly, in the utility model electrokinetic cell top cover, pole 12 is formed by base portion 121 with from base portion 121 upwardly extending trunk portion 122 respectively, and trunk portion 122 is divided into top 123 and middle part 124 again; Wherein, top 123 is for having the cylinder of groove, and middle part 124 is the pylon of track shape for cross section; This is simple in structure, is easy to processing, snaps in simultaneously in the upper insulator 15 track shape endoporus; Play the anti-rotation effect, have installing hole 125 on the base portion 121, upper insulator 15 1 sides are provided with the track shape boss structure of perforate; Make things convenient for the location of external electric equipment, its outside is inlayed with track shape coping plate 11 endoporus and is cooperated, and the inboard is socketed on the track shape pylon at pole 12 middle parts 124; Prevent that pole 12 from rotating relative to upper insulator 15, simultaneously, make insulation between pole 12 and the coping plate 11; Opposite side is provided with groove, and snap ring 16 is inserted in the groove, prevents that snap ring 16 from rotating and interferes or produce short risk with external electric equipment.Lower insulator 13 places between pole base portion 121 and the coping plate 11; And be embedded in the installing hole 125 of pole base portion 121; Be provided with sealing ring 14 between pole 12 and the coping plate 11, brace 18 is connected with positive and negative terminals, and heat shrinkage film tightly is attached at the exposed parts of pole 12, snap ring 16, upper insulator 15; The support 17 that has buckle is assembled into one positive and negative terminals and support 17, and positive and negative terminals and support 17 are combined together tightly.
The assembling process of electrokinetic cell top cover is following:
At first, pole 12 is inverted, in the installing hole 125 of base portion 121, is inlayed lower insulator 13; Simultaneously sealing ring 14 is socketed in pole 12 and is on the pylon of track shape, and annular boss up, the coping plate 11 that will have pole hole 112 then is socketed on the trunk portion 122 of pole 12; Secondly, pole 12 is socketed in the upper insulator 15 that is provided with perforate, and the pylon that is track shape on the pole 12 matches with upper insulator 15 track shape boss inboards; Simultaneously, matching in the pole hole 112 that is track shape on the upper insulator 15 track shape boss outsides and the coping plate 11, follows; Stop through specific purpose tool compression upper insulator 15 to coping plate 11 position that contacts with lower insulator 13, at this moment, snap ring 16 snaps in the draw-in groove on pole 12 tops 123; And snap ring 16 is inserted in the groove of upper insulator 15 1 sides, then, utilizes heat shrinkage film that pole 12 exposed parts are bundled together together with snap ring 16; Then, brace 17 and positive and negative terminals are carried out laser welding, after welding finishes; The positive and negative lug of electric core is carried out ultrasonic bonding with the brace 17 that is welded on the positive and negative terminals respectively; At last, support 18 snaps in the slit between pole 12 base portions 121 and coping plate 11 lower surfaces through buckle, and support 18 is assembled into one together with pole 12.
Like Fig. 3 and shown in Figure 4; A kind of electrokinetic cell of the utility model; Comprise power electricity core 2, be used to hold the battery container 3 of said power electricity core 2; And be poured into the electrolyte in the battery container 3, and said battery container 3 comprises the housing main body 31 and top cover 1 that is tightly connected, said top cover 1 is the described electrokinetic cell top cover of above-mentioned paragraph.
The assembling process of electrokinetic cell is:
At first, with the positive pole ear of power electricity core 2 and negative lug respectively with top cover 1 on positive terminal and the negative terminal installed be welded to connect, the electric core 2 of power that will be connected with top cover 1 then is positioned in the housing main body 31; Secondly, in housing main body 31, pour into electrolyte; At last, top cover 1 is installed on the top of housing main body 31 through laser welded seal, promptly accomplishes the assembling of the utility model electrokinetic cell.During use, an end of pole 12 and power electricity core 2 electrically connect, and the other end is connected with external circuit.
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 (9)
1. an electrokinetic cell top cover comprises coping plate, pole, lower insulator, sealing ring and upper insulator, and said coping plate is provided with liquid injection hole and pole hole; Said lower insulator is installed on the pole; 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 installed in the pole hole, it is characterized in that: said pole is provided with groove; Be connected with snap ring in the said groove, said pole is installed in the support.
2. electrokinetic cell top cover according to claim 1 is characterized in that: the exposed parts of said pole, snap ring and upper insulator posts heat shrinkage film.
3. electrokinetic cell top cover according to claim 1 is characterized in that: also be connected with brace on the said pole.
4. electrokinetic cell top cover according to claim 1 is characterized in that: said pole comprises base portion and from the upwardly extending trunk portion of base portion.
5. electrokinetic cell top cover according to claim 4 is characterized in that: said base portion is provided with installing hole, and said lower insulator 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 top cover according to claim 1 is characterized in that: said upper insulator is a ceramic ring.
8. electrokinetic cell top cover according to claim 1 is characterized in that: said support is provided with buckle.
9. electrokinetic cell; Comprise power electricity core, be used to hold the battery container of said power electricity core; And be poured into the electrolyte in the battery container; Said battery container 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 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200798094U CN202585544U (en) | 2012-03-06 | 2012-03-06 | Power battery and top cover thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200798094U CN202585544U (en) | 2012-03-06 | 2012-03-06 | Power battery and top cover thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585544U true CN202585544U (en) | 2012-12-05 |
Family
ID=47254922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200798094U Expired - Lifetime CN202585544U (en) | 2012-03-06 | 2012-03-06 | Power battery and top cover thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202585544U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134766A (en) * | 2013-05-31 | 2014-11-05 | 中航锂电（洛阳）有限公司 | Lithium battery, electrical core retainer and cover plate thereof, and welding method for cover plate and shell of lithium battery |
| CN104617237B (en) * | 2015-01-21 | 2017-03-22 | 朝阳立塬新能源有限公司 | Double-pole rod lithium battery cover plate and manufacturing method thereof |
| CN106684267A (en) * | 2015-11-11 | 2017-05-17 | 三星Sdi株式会社 | Rechargeable battery |
| EP3193386A1 (en) * | 2016-01-14 | 2017-07-19 | Contemporary Amperex Technology Co., Limited | Secondary battery |
| CN109216748A (en) * | 2018-10-08 | 2019-01-15 | 成都工业学院 | A kind of circlip mounting device and circlip mounting platform |
| CN112332044A (en) * | 2020-05-19 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | End cover assembly, single battery, battery pack, device and liquid injection method |
| US11777184B2 (en) | 2020-05-19 | 2023-10-03 | Contemporary Amperex Technology Co., Limited | End cover assembly, secondary battery, battery module, apparatus, liquid-injection method and device |
-
2012
- 2012-03-06 CN CN2012200798094U patent/CN202585544U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134766A (en) * | 2013-05-31 | 2014-11-05 | 中航锂电（洛阳）有限公司 | Lithium battery, electrical core retainer and cover plate thereof, and welding method for cover plate and shell of lithium battery |
| CN104617237B (en) * | 2015-01-21 | 2017-03-22 | 朝阳立塬新能源有限公司 | Double-pole rod lithium battery cover plate and manufacturing method thereof |
| CN106684267A (en) * | 2015-11-11 | 2017-05-17 | 三星Sdi株式会社 | Rechargeable battery |
| CN106684267B (en) * | 2015-11-11 | 2021-09-17 | 三星Sdi株式会社 | Rechargeable battery |
| EP3193386A1 (en) * | 2016-01-14 | 2017-07-19 | Contemporary Amperex Technology Co., Limited | Secondary battery |
| CN106972144A (en) * | 2016-01-14 | 2017-07-21 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| US10199627B2 (en) | 2016-01-14 | 2019-02-05 | Contemporary Amperex Technology Co., Limited | Secondary battery |
| CN106972144B (en) * | 2016-01-14 | 2023-03-17 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| CN109216748A (en) * | 2018-10-08 | 2019-01-15 | 成都工业学院 | A kind of circlip mounting device and circlip mounting platform |
| CN109216748B (en) * | 2018-10-08 | 2024-02-27 | 成都工业学院 | Clamp spring mounting device and clamp spring mounting platform |
| CN112332044A (en) * | 2020-05-19 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | End cover assembly, single battery, battery pack, device and liquid injection method |
| US11777184B2 (en) | 2020-05-19 | 2023-10-03 | Contemporary Amperex Technology Co., Limited | End cover assembly, secondary battery, battery module, apparatus, liquid-injection method and device |
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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 |
Effective date of registration: 20180102 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. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |