CN204991784U - Ultra -thin power package of lithium cell closes block - Google Patents
Ultra -thin power package of lithium cell closes block Download PDFInfo
- Publication number
- CN204991784U CN204991784U CN201520818137.8U CN201520818137U CN204991784U CN 204991784 U CN204991784 U CN 204991784U CN 201520818137 U CN201520818137 U CN 201520818137U CN 204991784 U CN204991784 U CN 204991784U
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- China
- Prior art keywords
- brace
- ultra
- burst disk
- thin power
- lithium battery
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- 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.)
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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 a lithium battery pack technical field especially relates to an ultra -thin power package of lithium cell closes block, including top cap, explosion -proof piece, cage ring, connection piece and sealing washer, the top cap below sets up explosion -proof piece, and explosion -proof piece below is provided with the connection piece, and explosion -proof piece edge is provided with borduring of inwards rolling, and the edge of top cap is lived to the parcel of borduring, the middle part fixed connection of explosion -proof piece and connection piece, the edge of connection piece with explosion -proof between install the cage ring, suit sealing washer outside top cap, explosion -proof, cage ring and the connection piece. The utility model discloses an ultra -thin power package of lithium cell closes block, the block height can reduce to below the 3mm, has increased the height of battery inner space, and lithium cell book core height effectively improves battery power density about can increasing 1mm, the utility model discloses a change the structure of cage ring, explosion -proof piece and connection piece to reach the whole purpose that highly reduces of block, realize ultra -thinization of block, and the shock resistance is strong, it is applied reliable, the big automated production in batches of being convenient for.
Description
Technical field
The utility model relates to lithium battery pack technical field, particularly relates to the ultra-thin power combination block of a kind of lithium battery.
Background technology
The life appearing as we mankind of battery, amusement and work provide important power supply guarantee.Along with the development of society and the progress of human civilization, primary cell due to the pollution to environment, capacity is low, service time is short etc., and shortcoming will be eliminated gradually, the substitute is pollution-free, capacity is large, the secondary cell of the advantages such as long service life, wherein the distinctive self structure of cylinder type lithium battery and performance are widely applied to every field, are exactly representative wherein as notebook computer, portable power source, electric tool, electric automobile etc.
Security combination block is the most important safety guarantee parts of lithium battery, and the structure of itself and production technology affect the performance of lithium battery and the manufacturing cost of battery producer directly or indirectly.Existing combination cover cap as shown in Figure 9, comprise outside sealing ring, brace, cage ring, burst disk, inner ring and top cover, height h1 bottom top cover to brace is about 3.5mm i.e. cap-height, the thicker capacity with regard to battery of this thickness is less, therefore technical staff have employed kinds of schemes and wants to reduce its thickness, such as reduce the height of top cover, easily like this there are two kinds of problems, one is that top cover is lower than battery edge of table, the normal use of battery can be affected like this, two is affect opening of battery internal safety valve, does not even open; Be for another example burst disk is done short, but due to burst disk too low, safe distance can be caused inadequate, cause burst disk and brace to occur after severance, like non-disconnected situation of breaking, causing battery runs down not thorough.
Utility model content
The technical problems to be solved in the utility model is: how to reduce to solve in prior art the technical problem that combination cover cap improves battery capacity, and the utility model provides a kind of lithium battery ultra-thin power combination block.Reduced the whole height of block by the structure changing cage ring, burst disk and brace, and keep the stability of block under complex environment while the capacity of increase battery.
The utility model solves the technical scheme that its technical problem adopts: the ultra-thin power combination block of a kind of lithium battery, comprise top cover, burst disk, cage ring, brace and sealing ring, below described top cover, described burst disk is set, brace is provided with below described burst disk, described burst disk edge is provided with the bound edge inwardly rolled, described bound edge wraps the edge of top cover, described burst disk is fixedly connected with the middle part of brace, between the edge of described brace and described burst disk, described cage ring is installed, described top cover, burst disk, cage ring and brace are set with described sealing ring outward.The ultra-thin power combination block of lithium battery of the present utility model, cap-height is reduced to about 3mm by original 3.5mm, and inside battery space obviously increases, and when not changing outside batteries size, improves battery capacity.
The peak of described top cover upper surface is h2, h2≤3.0mm to the height of the minimum point of brace.
In order to increase conductive stability, the middle part of described top cover is provided with the boss to outside batteries projection, and the edge of described boss offers some bleeder ports.
In order to discharge the gas of the inner output of battery, the middle part of described burst disk is provided with the projection protruded to outside batteries, and the top center of described projection is recessed to form concave surface to inside battery, and described boss is sleeved on protruding outside.
In order to reduce the height of blocking a shot, improve battery capacity, the middle part of described cage ring is provided with the hollow cylinder to outside batteries projection, and cylindrical sleeve is contained in hollow cylinder outside, the section of hollow cylinder is L-type, and the section of hollow cylinder and the section of cage ring outside form step-like.
In order to match with the structure of cage ring, and have aeration, described brace middle part is provided with the flat-top cylinder to outside batteries projection, and the outer ring described brace being positioned at flat-top cylinder offers some air vent holes, and flat-top cylinder is fixedly connected with concave surface.
For the ease of functional localization, production and assembly and antidetonation, the outward flange of each air vent hole is on same circle, and described circle and flat-top cylindrical-concentric, the outward flange of described air vent hole also has flange upwards, described flange is on described circle, and it is outside that described hollow cylinder is sleeved on described flange.
In order to increase the sealing effectiveness of sealing ring, the top of described sealing ring is open column shape, the lower middle portion of sealing ring is provided with the inversion hollow cone to lower convexity, be connected by platform between hollow cone and the top of sealing ring, the upper inside wall of described sealing ring is provided with triangle card muscle, described platform upper surface is provided with trapezoidal sealed muscle, the bound edge of burst disk is between triangle card muscle and trapezoidal sealed muscle, described cage ring and brace are positioned at hollow cone, and have spacing bottom brace and hollow cone.
The beneficial effects of the utility model are, the ultra-thin power combination block of lithium battery of the present utility model, cap-height can be reduced to below 3mm, add the height in inside battery space, after adopting this block, lithium battery coiling core height can increase about 1mm, effective raising battery energy density, namely when not changing outside batteries size, battery capacity can increase by 1.5%, the utility model is mainly through changing cage ring, the structure of burst disk and brace, cage ring tradition turned down downwards makes into upwards to turn down, thus reach the object of block whole height reduction, realize block ultrathin, and shock resistance is strong, application is reliable, be convenient to automated production in enormous quantities.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the ultra-thin power combination block of the utility model lithium battery.
Fig. 2 is the structural representation of the top cover of the ultra-thin power combination block of the utility model lithium battery.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the structural representation of the burst disk of the ultra-thin power combination block of the utility model lithium battery.
Fig. 5 is the structural representation of the spacer of the ultra-thin power combination block of the utility model lithium battery.
Fig. 6 is the structural representation of the brace of the ultra-thin power combination block of the utility model lithium battery.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is the structural representation of the sealing ring of the ultra-thin power combination block of the utility model lithium battery.
Fig. 9 is combination cover cap structural representation of the prior art.
In figure: 2, top cover, 2-1, boss, 2-2, bleeder port, 3, burst disk, 3-1, bound edge, 3-2, projection, 3-3, concave surface, 4, cage ring, 4-1, hollow cylinder, 5, brace, 5-1, flat-top cylinder, 5-2, air vent hole, 5-3, flange, 6, sealing ring, 6-1, hollow cone, 6-2, platform, 6-3, triangle card muscle, 6-4, trapezoidal sealed muscle, 6-5, spacing.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in figures 1-8, it is the ultra-thin power combination block of lithium battery of the present utility model, comprise top cover 2, burst disk 3, cage ring 4, brace 5 and sealing ring 6, burst disk 3 is set below top cover 2, brace 5 is provided with below burst disk 3, burst disk 3 edge is provided with the bound edge 3-1 inwardly rolled, bound edge 3-1 wraps the edge of top cover 2, burst disk 3 is fixedly connected with the middle part of brace 5, between the edge of brace 5 and burst disk 3, cage ring 5 is installed, top cover 2, burst disk 3, cage ring 5 and brace 5 outer suit sealing ring 6.Rear total height h2 assembled by top cover 2, burst disk 3, cage ring 4 and brace 5 four is 2.96mm.
As shown in Figure 2,3, the middle part of top cover 2 is provided with the boss 2-1 to outside batteries projection, and the edge of boss 2-1 offers some bleeder port 2-2.Top in outside batteries and Fig. 1-8.
As shown in Figure 4, the middle part of burst disk 3 is provided with the protruding 3-2 protruded to outside batteries (outside batteries and positive pole top cover), and the top center of protruding 3-2 is recessed to form concave surface 3-3 to inside battery, and it is outside that boss 2-1 is sleeved on protruding 3-2.
As shown in Figure 5, the middle part of cage ring 4 is provided with the hollow cylinder 4-1 to outside batteries projection, and it is outside that cylinder 3-2 is sleeved on hollow cylinder 4-1, and the section of hollow cylinder 4-1 is L-type, and the section of hollow cylinder 4-1 and the section of cage ring 4 outside form step-like.
As shown in Figure 6,7, brace 5 middle part is provided with the flat-top cylinder 5-1 to outside batteries projection, brace 5 offers some air vent hole 5-2, and air vent hole 5-2 can be waist-shaped hole, fan-shaped or other shapes, and flat-top cylinder 5-1 is fixedly connected with concave surface 3-3.The outward flange of each air vent hole 5-2 is on same circle, and circle is concentric with flat-top cylinder 5-1, the outward flange of air vent hole 5-2 also has flange 5-3 upwards, and flange 5-3 is on described circle, and it is outside that hollow cylinder 4-1 is sleeved on flange 5-3.
As shown in Figure 8, the top of sealing ring 6 is open column shape, the lower middle portion of sealing ring 6 is provided with the inversion hollow cone 6-1 to lower convexity, be connected by platform 6-2 between hollow cone 6-1 and the top of sealing ring 6, the upper inside wall of sealing ring 6 is provided with triangle card muscle 6-3, the upper surface of platform 6-2 is provided with trapezoidal sealed muscle 6-4, the bound edge 3-1 of burst disk 3 is between triangle card muscle 6-3 and trapezoidal sealed muscle 6-4, cage ring 4 and brace 5 are positioned at hollow cone 6-1, and have spacing 6-5 bottom brace 5 and hollow cone 6-1.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (8)
1. the ultra-thin power combination block of lithium battery, it is characterized in that: comprise top cover (2), burst disk (3), cage ring (4), brace (5) and sealing ring (6), described top cover (2) below arranges described burst disk (3), described burst disk (3) below is provided with brace (5), described burst disk (3) edge is provided with the bound edge (3-1) inwardly rolled, described bound edge (3-1) wraps the edge of top cover (2), described burst disk (3) is fixedly connected with the middle part of brace (5), between the edge of described brace (5) and described burst disk (3), described cage ring (4) is installed, described top cover (2), burst disk (3), cage ring (4) and brace (5) are set with described sealing ring (6) outward.
2. the ultra-thin power combination block of lithium battery as claimed in claim 1, is characterized in that: the peak of described top cover (2) upper surface is h2, h2≤3.0mm to the height of the minimum point of brace (5).
3. the ultra-thin power combination block of lithium battery as claimed in claim 1, it is characterized in that: the middle part of described top cover (2) is provided with the boss (2-1) to outside batteries projection, the edge of described boss (2-1) offers some bleeder ports (2-2).
4. the ultra-thin power combination block of lithium battery as claimed in claim 3, it is characterized in that: the middle part of described burst disk (3) is provided with the projection (3-2) protruded to outside batteries, the top center of described projection (3-2) is recessed to form concave surface (3-3) to inside battery, and it is outside that described boss (2-1) is sleeved on projection (3-2).
5. the ultra-thin power combination block of lithium battery as claimed in claim 4, it is characterized in that: the middle part of described cage ring (4) is provided with the hollow cylinder (4-1) to outside batteries projection, it is outside that protruding (3-2) is sleeved on hollow cylinder (4-1), the section of hollow cylinder (4-1) is L-type, and the section of the section of hollow cylinder (4-1) and cage ring (4) outside forms step-like.
6. the ultra-thin power combination block of lithium battery as claimed in claim 5, it is characterized in that: described brace (5) middle part is provided with the flat-top cylinder (5-1) to outside batteries projection, the outer ring described brace (5) being positioned at flat-top cylinder (5-1) offers some air vent holes (5-2), and flat-top cylinder (5-1) is fixedly connected with concave surface (3-3).
7. the ultra-thin power combination block of lithium battery as claimed in claim 6, it is characterized in that: the outward flange of each air vent hole of brace (5-2) is on same circle, described circle is concentric with flat-top cylinder (5-1), the outward flange of described air vent hole (5-2) also has flange (5-3) upwards, described flange (5-3) is on described circle, and it is outside that described hollow cylinder (4-1) is sleeved on described flange (5-3).
8. the ultra-thin power combination block of lithium battery as claimed in claim 6, it is characterized in that: the top of described sealing ring (6) is open column shape, the lower middle portion of sealing ring (6) is provided with the inversion hollow cone (6-1) to lower convexity, be connected by platform (6-2) between hollow cone (6-1) and the top of sealing ring (6), the upper inside wall of described sealing ring (6) is provided with triangle card muscle (6-3), the upper surface of described platform (6-2) is provided with trapezoidal sealed muscle (6-4), the bound edge (3-1) of burst disk (3) is positioned between triangle card muscle (6-3) and trapezoidal sealed muscle (6-4), described cage ring (4) and brace (5) are positioned at hollow cone (6-1), and brace (5) has spacing with hollow cone (6-1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520818137.8U CN204991784U (en) | 2015-10-20 | 2015-10-20 | Ultra -thin power package of lithium cell closes block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520818137.8U CN204991784U (en) | 2015-10-20 | 2015-10-20 | Ultra -thin power package of lithium cell closes block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991784U true CN204991784U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520818137.8U Withdrawn - After Issue CN204991784U (en) | 2015-10-20 | 2015-10-20 | Ultra -thin power package of lithium cell closes block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991784U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226209A (en) * | 2015-10-20 | 2016-01-06 | 常州市武进中瑞电子有限公司 | The ultra-thin power combination block of lithium battery |
| CN107799695A (en) * | 2017-11-06 | 2018-03-13 | 枣庄市盘古精密机械科技有限公司 | A kind of explosion-resistant enclosure of lithium battery |
| CN108448014A (en) * | 2018-03-07 | 2018-08-24 | 江苏镭腾能源科技有限公司 | A kind of lithium battery cap component |
-
2015
- 2015-10-20 CN CN201520818137.8U patent/CN204991784U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226209A (en) * | 2015-10-20 | 2016-01-06 | 常州市武进中瑞电子有限公司 | The ultra-thin power combination block of lithium battery |
| CN105226209B (en) * | 2015-10-20 | 2017-10-20 | 常州市武进中瑞电子有限公司 | The ultra-thin power combination block of lithium battery |
| CN107799695A (en) * | 2017-11-06 | 2018-03-13 | 枣庄市盘古精密机械科技有限公司 | A kind of explosion-resistant enclosure of lithium battery |
| CN108448014A (en) * | 2018-03-07 | 2018-08-24 | 江苏镭腾能源科技有限公司 | A kind of lithium battery cap component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20171020 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20171020 |