CN203218361U - Insulating washer of lithium ion battery - Google Patents
Insulating washer of lithium ion battery Download PDFInfo
- Publication number
- CN203218361U CN203218361U CN2013201250429U CN201320125042U CN203218361U CN 203218361 U CN203218361 U CN 203218361U CN 2013201250429 U CN2013201250429 U CN 2013201250429U CN 201320125042 U CN201320125042 U CN 201320125042U CN 203218361 U CN203218361 U CN 203218361U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- insulating washer
- spacer ring
- height
- 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 - Fee Related
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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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- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the field of lithium ion batteries, and particularly relates to an insulating washer of a lithium ion battery. The insulating washer of the lithium ion battery comprises a space ring plate, at least three steps and a clearance; the at least three steps are arranged at the space ring plate; the clearance is used for passing through a plate lug; the at least three steps include a first step, a second step and a third step; the second step is arranged between the first step and the third step; the first step and the third step are both shorter than or as high as the second step; the space ring plate is provided with a flange which is placed between the first step and the second step; the first step, the second step and the flange define a space ring blocking groove. According to the insulating washer of the lithium ion battery, the plate lug can be effectively folded and placed in the space ring blocking groove to fix the position of the plate lug, so that the potential risk of short circuit due to the shaking of the plate lug caused by impacting and other destructive impacts is avoided; the three steps designed for supporting effectively avoid the potential risks such as short-circuit blasting while the battery falls and is impacted.
Description
Technical field
The utility model belongs to the lithium ion battery field, relates in particular to a kind of lithium ion battery insulating washer.
Background technology
The rectangular lithium ion battery of existing aluminum hull structure in assembling process, needs at the top of electric core spacer ring to be installed, in case cause cell safety hidden danger to occur because electric core and battery cover board directly contact.
In the prior art, the employed spacer ring of battery is two kinds of plane spacer ring and three-dimensional spacer rings, generally includes spacer ring plate and the gap by the spacer ring plate.Assembling rectangular lithium ion battery process is as follows: the lug of just (bear) of electric core is passed the gap, with the gummed paper that insulate the spacer ring plate is fixed on the top of electric core, more electric core is contained in the battery case, at last cover plate and battery case are sealed.The both sides of the spacer ring plate of three-dimensional spacer ring have step and middle space collar face that step is also arranged, can prevent effectively that lug from contacting with cover plate (except brace) and cause short circuit when folding, and can effectively prevent the short circuit potential safety hazard that battery causes owing to impulsive force when falling.
In the prior art at the three-dimensional spacer ring of lithium ion battery because fault of construction, battery fall, under the abnormal conditions such as bump, potential safety hazard is in the majority, this spacer ring has effectively improved this point.
The utility model content
The purpose of this utility model is: at the deficiencies in the prior art, and provide a kind of lithium ion battery insulating washer, the utility model is avoided the short circuit potential safety hazard that causes lug to rock to cause because of damaging impacts such as bumps, prevents the potential safety hazards such as battery short circuit that cause in the battery falling process.
For achieving the above object, the utility model adopts following technical scheme: a kind of lithium ion battery insulating washer, comprise the spacer ring plate, be arranged at the step of described spacer ring plate and be used for passing the gap of lug, described step is provided with at least three, comprise first step, second step and the 3rd step, described second step is arranged between described first step and described the 3rd step, the height of described first step and described the 3rd step all is less than or equal to the height of described second step, described spacer ring plate is provided with rib, described rib between described first step and described second step, described first step, described second step and described rib surround the spacer ring draw-in groove.
The height of described second step is 1.0-2.5mm.
The height of described second step is 1.5-2.0mm.
The height of described rib is 0.2-1.0mm.
The height of described rib is 0.5-0.8mm.
Described second step is provided with pit, described pit be shaped as circle.
The beneficial effects of the utility model are: the utility model comprises the spacer ring plate, be arranged at the step of spacer ring plate and be used for passing the gap of lug, step is provided with at least three, comprise first step, second step and the 3rd step, second step is arranged between first step and the 3rd step, the height of first step and the 3rd step all is less than or equal to the height of second step, the spacer ring plate is provided with rib, rib is between first step and second step, and first step, second step and rib surround the spacer ring draw-in groove.The utility model can effectively fold lug and be placed in the spacer ring draw-in groove, thereby fixed the lug position, avoid the short circuit potential safety hazard that causes lug to rock to cause because of damaging impacts such as bumps, by three step supported design, effectively avoided battery potential safety hazard such as short circuit blast in falling processes such as bump.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the cutaway view of Fig. 1.
Embodiment
Below in conjunction with embodiment and Figure of description, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
As shown in Figure 1, 2, a kind of lithium ion battery insulating washer, comprise spacer ring plate 1, be arranged at the step of spacer ring plate 1 and be used for passing the gap 2 of lug, step is provided with at least three, comprise first step 4, second step 5 and the 3rd step 3, second step 5 is arranged between first step 4 and the 3rd step 3, the height of first step 4 and the 3rd step 3 all is less than or equal to the height of second step 5, spacer ring plate 1 is provided with rib 7, rib 7 is between first step 4 and second step 5, and first step 4, second step 5 and rib 7 surround spacer ring draw-in groove 8.
Wherein, the width of first step 4 approaches the width with electric core, is slightly less than the width of electric core generally speaking, like this better controlled the serious secundly of lug and the hidden danger of the gland difficulty that causes in the assembling process.
Preferably, the height of second step 4 is 1.0-2.5mm.
More excellent, the height of second step 4 is 1.5-2.0mm.
Preferably, the height of rib 7 is 0.2-1.0mm, and the design of rib 7 can allow the electric core negative electrode lug of thicker type number well fold and be fixed in the spacer ring draw-in groove 8, and smooth structure is made in bottom surface and the side of spacer ring draw-in groove 8.
More excellent, the height of rib 7 is 0.5-0.8mm.
Preferably, second step 4 is provided with pit 6, pit 6 be shaped as circle.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change and revise above-mentioned execution mode.Therefore, the utility model is not limited to above-mentioned embodiment, and any apparent improvement, replacement or modification that every those skilled in the art have done on basis of the present utility model all belong to protection range of the present utility model.In addition, although used some specific terms in this specification, these terms do not constitute any restriction to the utility model just for convenience of description.
Claims (6)
1. lithium ion battery insulating washer, comprise the spacer ring plate, be arranged at the step of described spacer ring plate and be used for passing the gap of lug, it is characterized in that: described step is provided with at least three, comprise first step, second step and the 3rd step, described second step is arranged between described first step and described the 3rd step, the height of described first step and described the 3rd step all is less than or equal to the height of described second step, described spacer ring plate is provided with rib, described rib between described first step and described second step, described first step, described second step and described rib surround the spacer ring draw-in groove.
2. described lithium ion battery insulating washer according to claim 1, it is characterized in that: the height of described second step is 1.0-2.5mm.
3. described lithium ion battery insulating washer according to claim 2, it is characterized in that: the height of described second step is 1.5-2.0mm.
4. lithium ion battery insulating washer according to claim 1, it is characterized in that: the height of described rib is 0.2-1.0mm.
5. lithium ion battery insulating washer according to claim 4, it is characterized in that: the height of described rib is 0.5-0.8mm.
6. lithium ion battery insulating washer according to claim 1, it is characterized in that: described second step is provided with pit, described pit be shaped as circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201250429U CN203218361U (en) | 2013-03-19 | 2013-03-19 | Insulating washer of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201250429U CN203218361U (en) | 2013-03-19 | 2013-03-19 | Insulating washer of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218361U true CN203218361U (en) | 2013-09-25 |
Family
ID=49207870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201250429U Expired - Fee Related CN203218361U (en) | 2013-03-19 | 2013-03-19 | Insulating washer of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203218361U (en) |
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2013
- 2013-03-19 CN CN2013201250429U patent/CN203218361U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20210319 |