CN101562241A - Square lithium ion battery terminal post anti-rotation device - Google Patents
Square lithium ion battery terminal post anti-rotation device Download PDFInfo
- Publication number
- CN101562241A CN101562241A CNA2009101169317A CN200910116931A CN101562241A CN 101562241 A CN101562241 A CN 101562241A CN A2009101169317 A CNA2009101169317 A CN A2009101169317A CN 200910116931 A CN200910116931 A CN 200910116931A CN 101562241 A CN101562241 A CN 101562241A
- Authority
- CN
- China
- Prior art keywords
- terminal post
- negative pole
- lithium ion
- ion battery
- pylon
- 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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 238000012856 packing Methods 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000002498 deadly effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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)
Abstract
The invention relates to a square lithium ion battery terminal post anti-rotation device, comprising an anode terminal post and a cathode terminal post respectively consisting of an anode terminal post body, a cathode terminal post body, an anode terminal post table and a cathode terminal post table. The anode terminal post body and the cathode terminal post body respectively consist of an upper part and a lower part, the flat anode terminal post table and the flat cathode terminal post table are arranged between the upper part and the lower part of the anode terminal post body and the cathode terminal post body. The device also comprises a bracket forming embedded fit with the anode terminal post and the cathode terminal post, a first through hole and a second through hole respectively fit for the peripheral outlines of the anode terminal post table and the cathode terminal post table are cut on the bracket, the peripheral outlines of the two tables are both non-circular and are composed of at least two sections of edges with different curvatures. By arranging the bracket, the device assembles the anode terminal post and the cathode terminal post together with the bracket as a whole so as to interlock the two terminal posts with the bracket deadly, thus being capable of effectively preventing the rotation of the terminal posts. Simultaneously, the device is simple in structure, easy in assembly and low in cost.
Description
Technical field
The present invention relates to a kind of lithium ion battery, especially a kind of square lithium ion battery terminal post anti-rotation device.
Background technology
Along with the application of capacity type, power-type lithium ion battery, the extraction lug of square housing can not satisfy the needs of lithium ion battery heavy-current discharge, and the pole type design has begun to replace the design of lug extraction.The lithium ion battery of pole type design is in manufacturing and use, because turning repeatedly of nut causes the loosening cell sealing effect that influences of pole easily, serious meeting causes lug and pole piece fracture on the pole piece, battery life is shortened or internal short-circuit of battery.
The existing pole rotating method that prevents has: first kind, and pole and cover plate casting one, the casting of insulating between pole and the cover plate; Second kind, anti-rotation moving part and bridge welding are connected together, and carry out insulation processing between pole and cover plate, the anti-rotation moving part; The third, cover plate indent draw-in groove adds insulation cushion between pole and the cover plate, pole and cover plate extruding anti-rotation; The 4th kind, in add anti-working of plastics, be locked in pole self-locking platform anti-rotation.
More than four kinds of methods all exist a large amount of problems: first kind, owing to be a cast molding, cost is too high, and homemade civilian lithium ion battery does not have this kind of discovery structure now; Second kind, because it is welded together that anti-rotation moving part and cover plate need, the assembling difficulty is bigger, the battery electrode column sealing effect can be not fine, the anti-rotation moving part needs to cooperate with platform in the pole, and the anti-rotation moving part need be made a funnel type, anti-rotation moving part or pole processing difficulties, the product for civilian use of domestic production is not also found this structure, and cost is higher; The third, owing to need the cover plate indent, cover plate again and add insulation cushion between the pole, for reaching sealing and anti-rotation, cover plate must be thickeied, the necessary anti-fatigue ability of insulation cushion material is higher, under the prerequisite that increases cost and quality, can reach good effect, but the product of domestic this design, cover plate, insulation cushion are all very thin, because when baby battery used, the pivoting moment of requirement was less, this kind design is used on the baby battery more, because the pivoting moment that macrocell requires in use is bigger, this design can't reach desirable effect; The 4th kind, because the strength problem of working of plastics, the working of plastics quality is bigger, and pole self-locking platform effective thickness needs thickening, causes that the pole quality need increase, battery inner chamber utilance reduces, and domestic part producer is using this design, but effect neither be very undesirable.
Summary of the invention
The object of the present invention is to provide a kind of safe, sealing strong, can prevent the square lithium ion battery terminal post anti-rotation device that pole rotates effectively.
For achieving the above object, a kind of square lithium ion battery terminal post anti-rotation device provided by the invention, comprise respectively by just, negative terminal body and just, the negative pole pylon is just being formed, negative terminal, just, the negative terminal body is respectively by top, the bottom is formed, just, the negative terminal upper part of body, flat shape is set just between the bottom, the negative pole pylon, also comprise with just, negative terminal constitutes inlays the support of cooperation, offer on the support respectively with just, the peripheral profile of negative pole pylon match first, two through holes, just, negative pole pylon peripheral profile is non-circular, just, the peripheral profile of negative pole pylon is made of the edge of two sections different curvature at least.
The present invention is by being provided with support, and positive and negative pole and support are assembled into one, and makes positive and negative pole and support locked mutually, can prevent effectively that pole from rotating, and simultaneously, the present invention is simple in structure, assembling easily, cost is low.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of pole among Fig. 1;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the structural representation of Fig. 1 medium-height trestle;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is the structural representation of the metal inserted piece among Fig. 4.
Embodiment
A kind of square lithium ion battery terminal post anti-rotation device, comprise the positive and negative pole of being made up of positive and negative pole body 12,22 and positive and negative electrode pylon 11,21 respectively 10,20, positive and negative electrode pylon 11,21 and positive and negative pole body 12,22 are in that to add man-hour one-body molded.Just, negative terminal body 12,22 respectively by top 12a, 22a, bottom 12b, 22b forms, just, negative terminal body 12,22 top 12a, 22a, bottom 12b, flat shape is set just between the 22b, negative pole pylon 11,21, the present invention also comprise with just, negative terminal 10,20 formations are inlayed the support 30 of cooperation, offer on the support 30 respectively with just, negative pole pylon 11,21 peripheral profile match first, two through holes 31,32, just, negative pole pylon 11,21 peripheral profiles are non-circular, just, negative pole pylon 11,21 peripheral profile is made of the edge of two sections different curvature at least, as shown in Figure 1.
In conjunction with Fig. 1,2,3, described positive and negative electrode pylon 11,21 peripheral profiles are substantially oblong-shaped, are circular-arc transition between two adjacent edges of positive and negative electrode pylon 11,21, greatly reduce acutance, prevent that effectively lug from being cut off the generation of phenomenon, guaranteed the fail safe of battery pack.The peripheral profile of positive and negative electrode pylon 11,21 also can be designed to regular hexagon, runway shape or other polygon, and wherein regular hexagon can be directly with the processing of hexagon bar; Runway shape is easily processed, though quality is heavier, helps the heat radiation of negative terminal.
In conjunction with Fig. 4, described support 30 is a plastic stent, its peripheral profile is rectangle, support 30 inside inlay first, two metal inserted pieces 33,34, the peripheral profile of the two is rectangle, first, two metal inserted pieces 33,34 center offer with just, negative pole pylon 11,21 peripheral profiles match first, two through holes 31,32, first, two metal inserted pieces 33,34 with just, negative pole pylon 11,21 stationary fits, first, two metal inserted pieces 33,4 location holes 35 are respectively offered in 34 edge, location hole 35 is used for matching with alignment pin in the mould in casting process, plays positioning action.Position on the described support 30 between first and second through hole 31,32 is provided with recess 36, the cross section of recess 36 is rectangle, in the process of support casting, this structure can prevent to be out of shape because of nonmetallic materials are shaped to shrink when cooling off, circular hole 37 is offered in the center of recess 36, and this circular hole 37 is used to inject electrolyte.The quality of support 30 anti-rotation effects, depend primarily on the tight situation of first and second metal inserted piece 33,34 cooperations of inside of positive and negative electrode pylon 11,21 and support 30, and the size of positive and negative electrode pylon 11,21 maximum rotation distances, the rotation distance of positive and negative electrode pylon 11,21 is meant the vertical range of stress point and pole central point.
In conjunction with Fig. 1, on top 12a, the 22a of described positive and negative pole body 12,22 polished rod is set, the polished rod upper end is provided with the screw rod that matches with nut 80, and the cross section of described screw rod and polished rod is all rounded.Overlap successively on the polished rod and set insulated enclosure packing ring 40, last insulating washer 50 and metal packing washer 60, lithium ion metal cover board 70 is installed in down between insulated enclosure packing ring 40 and the last insulating washer 50, is positioned at the lug connecting hole 121,221 of offering two symmetric arrangement on the positive and negative pole body 12,22 of positive and negative electrode pylon 11,21 belows respectively.
In conjunction with Fig. 2,3, bottom 12b, the 22b of described positive and negative pole body 12,22 respectively comprises transition circle cylinder 12d, the 22d at two parallel plane 12c, 22c and two ends, bottom 12b, the 22b of positive and negative pole body 12,22 respectively offers the connecting hole 121,221 that can connect for lug, and connecting hole 121,221 is provided with two and its trend perpendicular to plane 12c, 22c.
Below in conjunction with Fig. 1,2,3,4,5,6 the present invention is further illustrated.
At first go out Fig. 2 with metal material processing, shown in 3 just, negative terminal body 12,22 and just, negative pole pylon 11,21 conducts just, negative terminal 10,20, promptly when production and processing, just processing respectively earlier with a cylinder, negative terminal body 12,22 top 12a, 22a, axially cut two arches from bottom to top along cylindrical then, form two plane 11a that parallel, 21a, at two parallel plane 11a, on the basis of 21a, axially cut two arches from bottom to top along cylindrical again, form two and plane 11a, the plane 12c that 21a parallels, 22c, formation simultaneously has just certain thickness, negative pole pylon 11,21, two plane 11a, spacing between the 21a is greater than two plane 12c, spacing between the 22c, this moment just, negative terminal body 12,22 bottom 12b, the 22b moulding is at last just, negative terminal body 12,22 bottom 12b, offer connecting hole 121 on the 22b, 221 get final product.
Secondly, go out first and second metal inserted piece 33,34 that internal stent shown in Figure 5 is inlayed with metal material processing, offer 31,32 and four location holes 35 of first and second through hole on first and second metal inserted piece 33,34 respectively, wherein first and second through hole 31,32 can pass for positive and negative pole 10,20, and support 30 closely cooperates with first and second pole platform 11,21.First and second metal inserted piece 33,34 as with line cutting processing support 30 inside can have only 2 location holes 35; As first and second metal inserted piece 33,34 with Punching Technology support 30 inside, must guarantee at least 4 location holes 35, wherein arrange two location holes 35 that the aperture is big slightly on two diagonal angles, play main positioning action, arrange the slightly little location hole 35 in aperture on other two diagonal angles, play the assist location effect, to guarantee die-cut precision.
Once more, by the plastic castings mould of leaving shown in Figure 4, utilize first and second metal inserted piece 33,34 of mould of leaving and support 30 inside of making to carry out the casting of support 30.
At last, when assembling, earlier positive and negative pole 10,20 is inserted in first and second through hole 31,32 of support 30, because the shape of the positive and negative electrode pylon 11,21 of positive and negative pole 10,20 and the shape of first and second through hole 31,32 are complementary, positive and negative pole 10,20 and support 30 mutual interlocks, avoid support 30 to drop, realize the anti-rotation of positive and negative pole 10,20.Following insulated enclosure packing ring 40, lithium ion metal cover board 70 are installed then successively, are gone up insulating washer 50, metal packing washer 60, last fastening nut 80 has promptly been finished assembling.
In a word, core of the present invention is to be provided with support 30, positive and negative pole 10,20 is installed on the support 30, and closely cooperates with support 30, prevents the rotation of positive and negative pole 10,20 effectively.
Claims (7)
1, a kind of square lithium ion battery terminal post anti-rotation device, comprise respectively by just, negative terminal body (12,22) and just, negative pole pylon (11,21) just forming, negative terminal (10,20), just, negative terminal body (12,22) respectively by top (12a, 22a), bottom (12b, 22b) form, just, negative terminal body (12,22) top (12a, 22a), bottom (12b, flat shape is set just 22b), negative pole pylon (11,21), it is characterized in that: also comprise with just, negative terminal (10,20) formation is inlayed the support (30) of cooperation, offer on the support (30) respectively with just, negative pole pylon (11,21) peripheral profile match first, two through holes (31,32), just, negative pole pylon (11,21) peripheral profile be non-circular, just, negative pole pylon (11,21) peripheral profile is made of the edge of two sections different curvature at least.
2, square lithium ion battery terminal post anti-rotation device according to claim 1, it is characterized in that: described support (30) is a plastic stent, its peripheral profile is rectangle, support (30) inside inlays first, two metalworks (33,34), first, two metalworks (33,34) center offer with just, negative pole pylon (11,21) peripheral profile match first, two through holes (31,32), first, two metalworks (33,34) with just, negative pole pylon (11,21) stationary fit, first, two metalworks (33,34) 4 location holes (35) are respectively offered in edge.
3, square lithium ion battery terminal post anti-rotation device according to claim 1 is characterized in that: described positive and negative electrode pylon (11,21) peripheral profile is substantially oblong-shaped.
4, square lithium ion battery terminal post anti-rotation device according to claim 1, it is characterized in that: on the top (12a, 22a) of described positive and negative pole body (12,22) polished rod is set, the polished rod upper end is provided with the screw rod that matches with nut (80), overlap successively on the polished rod and set insulated enclosure packing ring (40), last insulating washer (50) and metal packing washer (60), lithium ion metal cover board (70) is installed in down between insulated enclosure packing ring (40) and the last insulating washer (50).
5, square lithium ion battery terminal post anti-rotation device according to claim 1, it is characterized in that: the bottom (12b, 22b) of described positive and negative pole body (12,22) respectively comprises the transition circle cylinder (12d, 22d) at two parallel planes (12c, 22c) and two ends, the connecting hole (121,221) that can connect for lug is respectively offered in the bottom (12b, 22b) of positive and negative pole body (12,22), and connecting hole (121,221) is provided with two and its trend perpendicular to plane (12c, 22c).
6, square lithium ion battery terminal post anti-rotation device according to claim 2, it is characterized in that: the position that is positioned on the described support (30) between first and second through hole (31,32) is provided with recess (36), and circular hole (37) is offered in the center of recess (36).
7, square lithium ion battery terminal post anti-rotation device according to claim 4 is characterized in that: the cross section of described screw rod, polished rod is rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101169317A CN101562241A (en) | 2009-06-01 | 2009-06-01 | Square lithium ion battery terminal post anti-rotation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101169317A CN101562241A (en) | 2009-06-01 | 2009-06-01 | Square lithium ion battery terminal post anti-rotation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101562241A true CN101562241A (en) | 2009-10-21 |
Family
ID=41220938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101169317A Pending CN101562241A (en) | 2009-06-01 | 2009-06-01 | Square lithium ion battery terminal post anti-rotation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101562241A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944576A (en) * | 2010-09-21 | 2011-01-12 | 奇瑞汽车股份有限公司 | Post seal structure for lithium ion battery |
| CN102479972A (en) * | 2010-11-30 | 2012-05-30 | 比亚迪股份有限公司 | Lithium ion secondary battery |
| CN103066234A (en) * | 2011-10-19 | 2013-04-24 | 黄泓雯 | Lithium battery and electrode link module thereof |
| CN103066236A (en) * | 2011-10-19 | 2013-04-24 | 黄泓雯 | Lithium battery and electrode link module thereof |
| WO2019056731A1 (en) * | 2017-09-19 | 2019-03-28 | 深圳市瑞德丰精密制造有限公司 | Conductive block having anti-twist function |
| CN109659131A (en) * | 2019-01-11 | 2019-04-19 | 佛山市顺德区巨华电力电容器制造有限公司 | A kind of capacitor prevented with terminal with rotating function |
| CN110120472A (en) * | 2018-02-07 | 2019-08-13 | 比亚迪股份有限公司 | Cell sealing cap assemblies, battery and battery pack |
| CN112531221A (en) * | 2020-12-03 | 2021-03-19 | 天津空间电源科技有限公司 | Winding type lithium ion battery with integrated electric connection structure and forming process thereof |
-
2009
- 2009-06-01 CN CNA2009101169317A patent/CN101562241A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944576A (en) * | 2010-09-21 | 2011-01-12 | 奇瑞汽车股份有限公司 | Post seal structure for lithium ion battery |
| CN102479972A (en) * | 2010-11-30 | 2012-05-30 | 比亚迪股份有限公司 | Lithium ion secondary battery |
| CN103066234A (en) * | 2011-10-19 | 2013-04-24 | 黄泓雯 | Lithium battery and electrode link module thereof |
| CN103066236A (en) * | 2011-10-19 | 2013-04-24 | 黄泓雯 | Lithium battery and electrode link module thereof |
| WO2019056731A1 (en) * | 2017-09-19 | 2019-03-28 | 深圳市瑞德丰精密制造有限公司 | Conductive block having anti-twist function |
| CN110120472A (en) * | 2018-02-07 | 2019-08-13 | 比亚迪股份有限公司 | Cell sealing cap assemblies, battery and battery pack |
| CN109659131A (en) * | 2019-01-11 | 2019-04-19 | 佛山市顺德区巨华电力电容器制造有限公司 | A kind of capacitor prevented with terminal with rotating function |
| CN109659131B (en) * | 2019-01-11 | 2024-02-23 | 巨华(广东)电气有限公司 | Capacitor with terminal anti-follow-rotation function |
| CN112531221A (en) * | 2020-12-03 | 2021-03-19 | 天津空间电源科技有限公司 | Winding type lithium ion battery with integrated electric connection structure and forming process thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Open date: 20091021 |