CN203260642U - Upper pad of lithium ion battery - Google Patents
Upper pad of lithium ion battery Download PDFInfo
- Publication number
- CN203260642U CN203260642U CN2013201143145U CN201320114314U CN203260642U CN 203260642 U CN203260642 U CN 203260642U CN 2013201143145 U CN2013201143145 U CN 2013201143145U CN 201320114314 U CN201320114314 U CN 201320114314U CN 203260642 U CN203260642 U CN 203260642U
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- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- pad
- upper gasket
- pad body
- 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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to an upper pad of a lithium ion battery. The upper pad comprises a pad body, the left and right ends of the pad body are round-cornered, and the bottom end surface of the pad body is provided with an arc chamfer steps; two negative electrode tab holes are axisymmetrically arranged at two sides of the center of the tab body, two round-cornered pad walls are arranged surrounding the pad body in a symmetric non-completely-enclosing mode, and there are two positive electrode tab gaps on the pad body unenclosed by the pad walls; and two bosses are symmetrically arranged on each of the pad walls close to the round-cornered portion of the pad walls, and boss small holes are arranged between the two bosses and the pad body. The pad body of the lithium ion battery has a left and right reversely-symmetric structure, so it is convenient for an employee to operate; and bosses on the pad body guarantee the locking of the pad body in a battery shell, so the deflection of the pad body in the battery shell, and the problems of negative tab meeting wall, the electrode group crushing and bad buckling caused by the deflection of the pad body are prevented, the safety performance of the lithium ion battery is guaranteed, and the qualified rate of the lithium ion battery operation is improved.
Description
Technical field
The utility model relates to the battery technology field, particularly relates to a kind of Upper gasket of lithium ion battery.
Background technology
At present, the advantages such as lithium ion battery has the specific energy height, recycles often, memory time is long, not only on portable electric appts, be used widely such as mobile phone, Digital Video and laptop computer, and be widely used in the big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool, therefore more and more higher to the safety requirements of lithium ion battery.
For square lithium ion battery wherein, be widely used in the mobile products such as MP3, MP4, personal digital assistant, mobile phone, digital camera nuclear toy, had the advantages such as voltage height, electricity capacity are large, long circulation life, memory-less effect, quality is light, working range is wide.At present, lithium ion battery is more and more towards the future development of high power capacity light and thin type.
For present square lithium ion battery, existing battery battery core assembling mode, need the operator to put Upper gasket at the negative electrode lug of battery pole group, utmost point group is put into battery case with Upper gasket, then carry out buckle closure, because this lateral dimension and longitudinal size of crossing the range request Upper gasket must be less than lateral dimension and the longitudinal size of battery case inner chamber, Upper gasket enters to the battery case inner chamber, crooked in the inner generation of battery container easily, can't play the effect that stops negative electrode lug to be rebuffed after Upper gasket is crooked, and produce easily that utmost point group weighs wounded and the problem such as buckle closure is bad, thereby had a strong impact on the security performance of operation qualification rate and lithium ion battery.
Therefore, at present in the urgent need to developing a kind of Upper gasket, can be not crooked in the inner generation of battery case after the assembling, in the later stage abuse test as falling vibration etc., can not produce crooked yet, thereby the series of problems such as effectively avoided negative electrode lug to be rebuffed, utmost point group weighs wounded and buckle closure is bad to guarantee the assembly quality of lithium ion battery, improves operation qualification rate and the security performance of lithium ion battery.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology and Upper gasket that a kind of lithium ion battery is provided, being intended to solve existing Upper gasket enters to the battery case inner chamber, crooked in the inner generation of battery container easily, can't play the effect that stops negative electrode lug to be rebuffed after Upper gasket is crooked, and produce easily that utmost point group weighs wounded and the problem such as buckle closure is bad.
For achieving the above object, the utility model is by the following technical solutions:
A kind of Upper gasket of lithium ion battery comprises that two ends, a left and right sides are all the clout body that fillet, bottom face are provided with the circular arc chamfering step; Both sides, described clout body center axial symmetry is provided with two negative pole earholes, and the non-full encirclement bag of Central Symmetry is provided with the two pad enclosure walls with fillet around described clout body, and described clout body is non-to be two anode ear breach by encirclement place of described pad enclosure wall; Fillet place near described pad enclosure wall on each described pad enclosure wall is arranged with two boss, is installed with the boss aperture between described two boss and the described clout body.
The base angle of described clout body all is that radius is the fillet of 0.2mm.
Described clout body is 0.4mm at the thickness at place, described negative electrode lug hole site, and all the other position thickness are 0.8mm.
The lateral surface of described pad enclosure wall all has 4 ° pattern draft.
The high 0.8mm of described pad enclosure wall, thick 0.5mm.
Described boss is the projection of the outwardly 0.1～0.15mm of metope of described pad enclosure wall, and the limit that described boss and described pad enclosure wall join is 45 ° of inclined-planes.
The area on described inclined-plane is 1mm*1.3mm.
Distance between the described boss of two correspondences of Width is greater than battery case inner chamber width 0.04～0.06mm.
The height of described circular arc chamfering step is 0.3mm, and chamfer radius is 0.3mm.
The Upper gasket of lithium ion battery described in the utility model is owing to be left and right sides reverse symmetry structure, make things convenient for the employee to operate, boss on the Upper gasket can guarantee that Upper gasket tightens in battery case, thereby it is crooked to prevent that Upper gasket from occurring in battery case, and the series of problems such as the skew-caused negative electrode lug of Upper gasket is rebuffed, utmost point group weighs wounded with buckle closure is bad, guarantee the security performance of lithium ion battery, improve the operation qualification rate of lithium ion battery, be conducive to simultaneously improve the packaging efficiency of lithium ion battery, be conducive to use aborning widely, be of great practical significance.
Description of drawings
Perspective view under one visual angle of the lithium ion battery Upper gasket that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is Fig. 1 end view;
Fig. 4 is the perspective view under another visual angle of the lithium ion battery Upper gasket that provides of the utility model embodiment.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
Shown in Fig. 1-4, a kind of Upper gasket of lithium ion battery comprises that two ends, a left and right sides are all fillet, bottom face is provided with the lateral dimension of circular arc chamfering step 7 greater than the rectangular clout body 1 of longitudinal size; Both sides, described clout body 1 center axial symmetry is provided with two negative pole earholes 2, and the non-full encirclement bag of Central Symmetry is provided with the two pad enclosure walls 4 with fillet around described clout body 1, and described clout body 1 is non-to be two anode ear breach 3 by described pad enclosure wall 4 encirclements place; Fillet place near described pad enclosure wall on each described pad enclosure wall 4 is arranged with two boss 5, is installed with the hole between boss aperture 6(boss 5 and the clout body 1 between described two boss 5 and the described clout body 1).
Among the utility model embodiment, described clout body 1 is left and right sides reverse symmetry structure.
Referring to shown in Figure 4, among the utility model embodiment, described clout body 1 base angle 8 all is that radius is the fillet of 0.2mm.
Among the utility model embodiment, described clout body is 0.4mm at the thickness at place, described negative electrode lug hole site, and all the other position thickness are 0.8mm.
Among the utility model embodiment, the lateral surface unification of described pad enclosure wall 4 has 4 ° pattern draft.
Among the utility model embodiment, the high 0.8mm of described pad enclosure wall 4, thick 0.5mm.
Among the utility model embodiment, described boss 5 is the projection of the outwardly 0.1～0.15mm of metope of described pad enclosure wall 4, described boss 5 is 45 ° of inclined-planes with the face that described pad enclosure wall joins, i.e. the overturning angle at 45 ° of the lateral surface 40 of the side 50 of described boss 5 and described pad enclosure wall 4.
Among the utility model embodiment, the area on described inclined-plane is 1mm*1.3mm.
Among the utility model embodiment, in the distance of 5 of the described boss of two correspondences of Width greater than battery case inner chamber width 0.04～0.06mm.
Among the utility model embodiment, the height of described circular arc chamfering step 7 is 0.3mm, and chamfering 70 radiuses of described circular arc chamfering step 7 are 0.3mm.
Need to prove that the utility model is preferably the Upper gasket that is applied to square lithium ion battery.
For the utility model, described pad enclosure wall 4 lateral surfaces all have 4 ° pattern draft, and 4 boss 5 have respectively corresponding boss aperture 6, in the time Upper gasket will being entered to the battery case inner chamber, even since the lateral dimension of described clout body 1 and longitudinal size need to lateral dimension and the corresponding coupling of longitudinal size of battery case, so that described clout body 1 is restricted when entering the battery case inner chamber, but because the pattern draft of described pad enclosure wall 4 and the boss aperture 6 that can inwardly shrink, so that the operator can enter Upper gasket to battery case smoothly, and utilize boss 5 that clout body 1 is tightened in battery case, thereby it is crooked to prevent that clout body 1 from occurring in battery case, the clout body card is hindered and is weighed the problem such as utmost point group wounded, guarantee the assembly quality of lithium ion battery, improve the up-to-standard rate of lithium ion battery.
In addition, because all base angles of described clout body 1 all are that radius is the fillet of 0.2mm, circular arc chamfering step 7 can be alleviated the squeezing action to utmost point group shoulder, reduces the damage to utmost point group, has improved the security performance of lithium ion battery.
In sum, compared with prior art, the utility model provides a kind of Upper gasket of lithium ion battery, be left and right sides reverse symmetry structure, make things convenient for the employee to operate, boss on the Upper gasket can guarantee that Upper gasket tightens in battery case, thereby it is crooked to prevent that Upper gasket from occurring in battery case, and the series of problems such as the skew-caused negative electrode lug of Upper gasket is rebuffed, utmost point group weighs wounded with buckle closure is bad, guarantee the security performance of lithium ion battery, improve the operation qualification rate of lithium ion battery, be conducive to use aborning widely, be of great practical significance.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1. the Upper gasket of a lithium ion battery is characterized in that, comprises that two ends, a left and right sides are all the clout body that fillet, bottom face are provided with the circular arc chamfering step; Both sides, described clout body center axial symmetry is provided with two negative pole earholes, and the non-full encirclement bag of Central Symmetry is provided with the two pad enclosure walls with fillet around described clout body, and described clout body is non-to be two anode ear breach by encirclement place of described pad enclosure wall; Fillet place near described pad enclosure wall on each described pad enclosure wall is arranged with two boss, is installed with the boss aperture between described two boss and the described clout body.
2. the Upper gasket of described lithium ion battery according to claim 1 is characterized in that the base angle of described clout body all is that radius is the fillet of 0.2mm.
3. the Upper gasket of described lithium ion battery according to claim 1 and 2 is characterized in that, described clout body is 0.4mm at the thickness at place, described negative electrode lug hole site, and all the other position thickness are 0.8mm.
4. the Upper gasket of described lithium ion battery according to claim 1 is characterized in that the lateral surface of described pad enclosure wall all has 4 ° pattern draft.
5. the Upper gasket of described lithium ion battery according to claim 4 is characterized in that the high 0.8mm of described pad enclosure wall, thick 0.5mm.
6. according to claim 1 or the Upper gasket of 5 described lithium ion batteries, it is characterized in that described boss is the projection of the outwardly 0.1～0.15mm of metope of described pad enclosure wall, the limit that described boss and described pad enclosure wall join is 45 ° of inclined-planes.
7. the Upper gasket of described lithium ion battery according to claim 6 is characterized in that the area on described inclined-plane is 1mm*1.3mm.
8. according to claim 1 or the Upper gasket of 7 described lithium ion batteries, it is characterized in that the distance between the described boss of two correspondences of Width is greater than battery case inner chamber width 0.04～0.06mm.
9. the Upper gasket of described ion battery according to claim 1 is characterized in that the height of described circular arc chamfering step is 0.3mm, and chamfer radius is 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201143145U CN203260642U (en) | 2013-03-14 | 2013-03-14 | Upper pad of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201143145U CN203260642U (en) | 2013-03-14 | 2013-03-14 | Upper pad of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203260642U true CN203260642U (en) | 2013-10-30 |
Family
ID=49473182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201143145U Expired - Lifetime CN203260642U (en) | 2013-03-14 | 2013-03-14 | Upper pad of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203260642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436181A (en) * | 2019-07-30 | 2019-11-12 | 惠州市恒泰科技股份有限公司 | Lithium battery coiling core tests transfer equipment |
-
2013
- 2013-03-14 CN CN2013201143145U patent/CN203260642U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436181A (en) * | 2019-07-30 | 2019-11-12 | 惠州市恒泰科技股份有限公司 | Lithium battery coiling core tests transfer equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230317 Address after: 300000 No.38 Haitai South Road, Huayuan Industrial Zone (outside the ring), High-tech Zone, Binhai New Area, Tianjin Patentee after: Tianjin Juyuan New Energy Technology Co.,Ltd. Address before: 300384 Tianjin Xiqing District Binhai hi tech Industrial Development Zone (outer ring) 38 Haitai South Road Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |
|
| TR01 | Transfer of patent right |