CN205177899U - Take riveting formula battery apron of blast resistant construction - Google Patents
Take riveting formula battery apron of blast resistant construction Download PDFInfo
- Publication number
- CN205177899U CN205177899U CN201521066925.2U CN201521066925U CN205177899U CN 205177899 U CN205177899 U CN 205177899U CN 201521066925 U CN201521066925 U CN 201521066925U CN 205177899 U CN205177899 U CN 205177899U
- Authority
- CN
- China
- Prior art keywords
- gasket
- explosion
- cover board
- blast resistance
- resistance construction
- 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
Links
- 238000010276 construction Methods 0.000 title claims abstract description 41
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 43
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000003466 welding Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 238000005422 blasting Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009916 joint effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a take riveting formula battery apron of blast resistant construction, including aluminum cover board, be equipped with exhaust hole and electrode riveted structure on aluminum cover board, be equipped with the blast resistant construction on the hole of exhausting, the electrode riveted structure include the rivet, go up gasket and gasket down, the lower skin weld of gasket has an electrode connection piece under, the rivet pass electrode connection piece, down gasket, aluminum cover board and go up the gasket in proper order, last gasket, aluminum cover board under, gasket and rivet space department each other be equipped with the insulating seal pad. Overall structure is simple for this kind of battery apron, and the stability is good, and the security performance is high. The setting of riveted structure, connection that can effectual each parts of improvement is reliably spent, and each spare parts structure position relatively fixed can not become flexible easily, has improved battery apron stability, the setting of blast resistant construction for the battery can be accurate detonating at the blasting within range of design, and the error is little, has improved the security performance of battery.
Description
Technical field
The utility model relates to cell art, is specifically related to a kind of riveted type battery cover board with blast resistance construction.
Background technology
Electrokinetic cell has spread all over industry-by-industry and field, is also the requirement of daily household.It is important Consideration that the fail safe of electrokinetic cell and practicality are selected in process user, and the riveted joint effect of cover plate of power battery affects the key factor of battery performance just, good riveted joint effect can strengthen the fail safe of battery and the convenience of battery assembling, and existing riveting parts is difficult to reach desirable effect in battery security.Battery, easily produces huge internal pressure at inside battery, and now, if internal pressure cannot discharge in time, gathering to a certain extent, battery easily produces blast, brings danger.The blast resistance construction of the cover plate of power lithium that market uses is, first on cover plate plate body, gets centralized positioning step hole, then welding or riveting rupture pressure disc in this stepped hole, finally on rupture pressure disc, get explosion-proof trace,, easily there is leakage in this kind of structure processed complex, the poor safety performance of battery.
Utility model content
The utility model provides a kind of riveted type battery cover board with blast resistance construction to solve the problems of the technologies described above, and this blast resistance construction solves the technical problems such as existing battery safety is poor, complex structure.
A kind of riveted type battery cover board with blast resistance construction, comprise Aluminum cover, Aluminum cover is provided with steam vent and electrode riveted structure, steam vent is provided with blast resistance construction, described electrode riveted structure comprises rivet, Upper gasket and lower gasket, Upper gasket and lower gasket are placed in upper surface and the lower surface of Aluminum cover respectively, electrode connecting piece is welded with at the lower surface of lower gasket, described rivet is successively through electrode connecting piece, lower gasket, Aluminum cover and Upper gasket, rivet becomes T-shaped shape, rivet T head and electrode connecting piece lower surface are combined closely, at Upper gasket, Aluminum cover, lower gasket and rivet gap is each other provided with insulated enclosure pad.
Preferably, described blast resistance construction comprises the explosion-proof valve body of the staged be fixedly installed on steam vent, explosion-proof valve body is provided with rupture pressure disc and explosion-proof sealing ring, rupture pressure disc to be stacked on described explosion-proof sealing ring and to be fixed on described explosion-proof valve body, and on rupture pressure disc, coupling is provided with and compresses pressure ring in explosion-proof sealing ring.
Preferably, be provided with lower seal pad in explosion-proof valve body lower end, lower seal pad be provided with the lower diaphragm intercepting battery core and contact with rupture pressure disc, lower diaphragm is provided with the lower pressure ring that lower diaphragm and lower seal pad are combined closely.
Preferably, middle pressure ring is provided with sealing gasket, upper sealing gasket is provided with the upper protective film of isolated rupture pressure disc and extraneous contact, upper protective film is provided with the upper press ring that upper protective film and upper sealing gasket are combined closely.
Preferably, the external diameter of described explosion-proof sealing ring, rupture pressure disc, middle pressure ring, upper sealing gasket, upper protective film, upper press ring is identical.
Preferably, the internal diameter of described explosion-proof sealing ring, middle pressure ring, upper sealing gasket, upper press ring is identical.
Preferably, described explosion-proof sealing ring adopts fluorubber material at high temperature injection moulding integrated molding.
Wherein, carry out punching press in the upper end of explosion-proof valve body, form attaching part.
Wherein, described electrode connecting piece and the welding manner of lower gasket are laser spot welding, and rivet T head point is welded in electrode connecting piece lower surface.
Preferred further, described electrode connecting piece is combined by the copper piece of six layers of 0.1mm or the aluminium flake body of six layers of 0.15mm.
The utility model provides a kind of riveted type battery cover board with blast resistance construction, and the riveted type battery cover board overall structure of this band blast resistance construction is simple, and stability is good, and security performance is high.Adopt the fastening whole electrode riveted structure of the mode of T-shaped rivet and laser spot welding, effectively can improve the connection reliability of each parts, each component structural position is relatively fixing, can not loosen easily, improve battery cover board stability, effectively improve the fail safe of battery.The setting of blast resistance construction, battery accurately can be detonated within the scope of the explosion of design, and error is little, improves the security performance of battery.The setting of lower diaphragm, effectively can contact with battery core by Separated explosion-proof film, can effectively intercept the excessive of electrolyte, avoid rupture pressure disc to be subject to the corrosion of electrolyte; The setting of upper protective film, effectively can completely cut off the contact of rupture pressure disc and external environment condition, can available protecting rupture pressure disc by the impact of external factor; Upper protective film and lower diaphragm adopt PP transparent material, are convenient to observation and explosion-proof film situation; The coupling of explosion-proof sealing ring, rupture pressure disc, middle pressure ring, upper sealing gasket, upper protective film, upper press ring size is arranged; the better tightness of the riveted type battery cover board of whole band blast resistance construction can be made; rupture pressure disc is little by external interference factor, accurately can detonate in scope of design.
Accompanying drawing explanation
Fig. 1 the utility model cutting structural representation.
Fig. 2 the utility model electrode riveted structure cut-away illustration.
Fig. 3 the utility model blast resistance construction cut-away illustration.
Reference numeral: Aluminum cover 1; Steam vent 2; Electrode riveted structure 3; Rivet 31; Upper gasket 32; Lower gasket 33; Electrode connecting piece 34; Insulated enclosure pad 35; Blast resistance construction 4; Explosion-proof valve body 41; Rupture pressure disc 42; Explosion-proof sealing ring 43; Middle pressure ring 44; Lower seal pad 45; Lower diaphragm 46; Lower pressure ring 47; Upper sealing gasket 48; Upper protective film 49; Upper press ring 50; Tread 1; Riser 1; Tread 2 413; Riser 2 414; Attaching part 415.
Embodiment
In order to allow those skilled in the art understand the technical solution of the utility model better, below the utility model is further elaborated.
As shown in accompanying drawing 1,2,3, a kind of riveted type battery cover board with blast resistance construction, comprise Aluminum cover 1, Aluminum cover is provided with steam vent 2 and electrode riveted structure 3, steam vent is provided with blast resistance construction 4, and described electrode riveted structure 3 comprises rivet 31, insulated enclosure pad 35, electrode connecting piece 34, Upper gasket 32 and lower gasket 33.Upper gasket and lower gasket are placed in upper surface and the lower surface of Aluminum cover respectively, electrode connecting piece 34 is welded with at the lower surface of lower gasket, in electrode connecting piece, lower gasket, Aluminum cover, top-secret sealing gasket, Upper gasket is provided with through hole on same axle center, rivet becomes T-shaped shape, rivet end is successively through electrode connecting piece, lower gasket, the through hole of Aluminum cover and Upper gasket, rivet T head and electrode connecting piece lower surface are combined closely, described electrode connecting piece and the welding manner of lower gasket are laser spot welding, rivet T head point is welded in electrode connecting piece lower surface, at Upper gasket, Aluminum cover, lower gasket and rivet gap is each other provided with insulated enclosure pad 35.Upper gasket and lower gasket, through the pulling force of rivet end, make Upper gasket and lower gasket all be formed with the upper and lower part of insulated enclosure pad and extrude, thus sealing gasket and insulated enclosure pad are combined closely, good airproof performance.Insulated enclosure pad is arranged, and each accessory can be made to combine closely, reach sealing effectiveness, effectively can deaden the connection of Aluminum cover and rivet, electrode connecting piece and Upper gasket, avoids the both positive and negative polarity of battery to connect and occurs short circuit.When electrode connecting piece 34 is as negative straps, adopt the copper piece of six layers of 0.1mm; When electrode connecting piece 34 is as positive strap, adopts the aluminium flake body combination of six layers of 0.15mm, adopt sandwich construction, the hardness of brace can be reduced like this, make it in use have good plasticity.
Blast resistance construction 4 comprises the explosion-proof valve body 41 be located on steam vent, explosion-proof valve body 41 by laser welding on the steam vent of cover board body, explosion-proof valve body 41 adopts stepped construction, explosion-proof valve body 41 comprises two treads and two risers, be specially tread 1, riser 1, tread 2 413, riser 2 414, tread 1, riser 1, tread 2 413, riser 2 414 successively head and the tail connects, attaching part 415 is provided with in riser two upper end of explosion-proof valve body, described tread 1, riser 1, tread 2 413 and riser 2 414 are formed in one structure.Explosion-proof valve body 41 plays support in whole blast resistance construction, and all accessories are positioned connection.The tread two of explosion-proof valve body is provided with rupture pressure disc 42 and explosion-proof sealing ring 43, rupture pressure disc to be stacked on described explosion-proof sealing ring and to be fixed on described explosion-proof valve body tread two, on rupture pressure disc, coupling is provided with and compresses pressure ring 44 in explosion-proof sealing ring, riser two interference fit of middle pressure ring and explosion-proof valve body, explosion-proof sealing ring 43 is by fluorubber material at high temperature injection moulding integrated molding.The thickness of described rupture pressure disc is 0.018-0.022MM, and the rupture pressure disc of this structure can ensure that the fluctuation range of explosion-proof pressure is very little, thus ensures the fail safe of battery structure, and ability ignites blast resistance construction at a particular pressure.
In explosion-proof valve body lower end, namely the tread one of explosion-proof valve body is provided with lower seal pad 45, lower seal pad is provided with the lower diaphragm 46 intercepting battery core and contact with rupture pressure disc, lower diaphragm is provided with the lower pressure ring 47 that lower diaphragm and lower seal pad are combined closely, the setting of lower diaphragm, can effectively be connected with battery core by Separated explosion-proof film, can effectively intercept the excessive of electrolyte, rupture pressure disc is avoided to be subject to the corrosion of electrolyte, the external diameter of lower pressure ring and the internal diameter of explosion-proof valve body riser one match, both form interference fit, under the effect of lower pressure ring, effectively can ensure that lower diaphragm and lower seal pad are combined closely.
Middle pressure ring is provided with sealing gasket 48, upper sealing gasket is provided with the upper protective film 49 of isolated rupture pressure disc and extraneous contact, upper protective film is provided with the upper press ring 50 that upper protective film and upper sealing gasket are combined closely.The setting of upper protective film, effectively can completely cut off the contact of rupture pressure disc and external environment condition, avoid rupture pressure disc to be subject to the destruction of extraneous factor.Lower diaphragm 46 and upper protective film 49 all adopt PP transparent material, and upper sealing gasket 48 and lower seal pad 41 all adopt polytetrafluoroethylmaterial material.The external diameter of described explosion-proof sealing ring 43, rupture pressure disc 42, middle pressure ring 44, upper sealing gasket 48, upper protective film 49, upper press ring 50 is identical; the internal diameter of described explosion-proof sealing ring 48, middle pressure ring 44, upper sealing gasket 48, upper press ring 50 is identical, riser two interference fit of upper press ring and explosion-proof valve body.
The utility model provides a kind of riveted type battery cover board with blast resistance construction, and the riveted type battery cover board overall structure of this band blast resistance construction is simple, and stability is good, and security performance is high.Adopt the fastening whole electrode riveted structure of the mode of T-shaped rivet and laser spot welding, effectively can improve the connection reliability of each parts, each component structural position is relatively fixing, can not loosen easily, improve battery cover board stability, effectively improve the fail safe of battery.The setting of blast resistance construction, battery accurately can be detonated within the scope of the explosion of design, and error is little, improves the security performance of battery.The setting of lower diaphragm, effectively can contact with battery core by Separated explosion-proof film, can effectively intercept the excessive of electrolyte, avoid rupture pressure disc to be subject to the corrosion of electrolyte; The setting of upper protective film, effectively can completely cut off the contact of rupture pressure disc and external environment condition, can available protecting rupture pressure disc by the impact of external factor; Upper protective film and lower diaphragm adopt PP transparent material, are convenient to observation and explosion-proof film situation; The coupling of explosion-proof sealing ring, rupture pressure disc, middle pressure ring, upper sealing gasket, upper protective film, upper press ring size is arranged; the better tightness of the riveted type battery cover board of whole band blast resistance construction can be made; rupture pressure disc is little by external interference factor, accurately can detonate in scope of design.
It is more than the utility model preferably implementation; it should be noted that; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change and are out of shape the protection range that all should belong to the claim appended by the utility model.
Claims (10)
1. the riveted type battery cover board with blast resistance construction, comprise Aluminum cover (1), Aluminum cover is provided with steam vent (2) and electrode riveted structure (3), it is characterized in that: on steam vent, be provided with blast resistance construction (4), described electrode riveted structure (3) comprises rivet (31), Upper gasket (32) and lower gasket (33), Upper gasket and lower gasket are placed in upper surface and the lower surface of Aluminum cover respectively, electrode connecting piece (34) is welded with at the lower surface of lower gasket, described rivet is successively through electrode connecting piece, lower gasket, Aluminum cover and Upper gasket, rivet becomes T-shaped shape, rivet T head and electrode connecting piece lower surface are combined closely, at Upper gasket, Aluminum cover, lower gasket and rivet gap is each other provided with insulated enclosure pad (35).
2. the riveted type battery cover board of band blast resistance construction according to claim 1, it is characterized in that: described blast resistance construction (4) comprises the explosion-proof valve body (41) of the staged be fixedly installed on steam vent, explosion-proof valve body is provided with rupture pressure disc (42) and explosion-proof sealing ring (43), rupture pressure disc to be stacked on described explosion-proof sealing ring and to be fixed on described explosion-proof valve body, and on rupture pressure disc, coupling is provided with and compresses pressure ring (44) in explosion-proof sealing ring.
3. the riveted type battery cover board of band blast resistance construction according to claim 2; it is characterized in that: be provided with lower seal pad (45) in explosion-proof valve body lower end; lower seal pad is provided with the lower diaphragm (46) intercepting battery core and contact with rupture pressure disc, lower diaphragm is provided with the lower pressure ring (47) that lower diaphragm and lower seal pad are combined closely.
4. the riveted type battery cover board of band blast resistance construction according to claim 3; it is characterized in that: on middle pressure ring, be provided with sealing gasket (48); upper sealing gasket is provided with the upper protective film (49) of isolated rupture pressure disc and extraneous contact, upper protective film is provided with the upper press ring (50) that upper protective film and upper sealing gasket are combined closely.
5. the riveted type battery cover board of band blast resistance construction according to claim 4, is characterized in that: the external diameter of described explosion-proof sealing ring (43), rupture pressure disc (42), middle pressure ring (44), upper sealing gasket (48), upper protective film (49), upper press ring (50) is identical.
6. the riveted type battery cover board of band blast resistance construction according to claim 5, is characterized in that: the internal diameter of described explosion-proof sealing ring (43), middle pressure ring (44), upper sealing gasket (48), upper press ring (50) is identical.
7. the riveted type battery cover board of the band blast resistance construction according to any one of claim 2-6, is characterized in that: described explosion-proof sealing ring adopts fluorubber material at high temperature injection moulding integrated molding.
8. the riveted type battery cover board of band blast resistance construction according to claim 7, is characterized in that: carry out punching press in the upper end of explosion-proof valve body, forms attaching part (415).
9. the riveted type battery cover board of band blast resistance construction according to claim 8, is characterized in that: described electrode connecting piece and the welding manner of lower gasket are laser spot welding, and rivet T head point is welded in electrode connecting piece lower surface.
10. the riveted type battery cover board of band blast resistance construction according to claim 9, is characterized in that: described electrode connecting piece (34) is combined by the copper piece of six layers of 0.1mm or the aluminium flake body of six layers of 0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521066925.2U CN205177899U (en) | 2015-12-21 | 2015-12-21 | Take riveting formula battery apron of blast resistant construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521066925.2U CN205177899U (en) | 2015-12-21 | 2015-12-21 | Take riveting formula battery apron of blast resistant construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205177899U true CN205177899U (en) | 2016-04-20 |
Family
ID=55741843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521066925.2U Expired - Fee Related CN205177899U (en) | 2015-12-21 | 2015-12-21 | Take riveting formula battery apron of blast resistant construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205177899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550778A (en) * | 2018-05-29 | 2018-09-18 | 天津锦泰勤业精密电子有限公司 | Power battery plate, cover plate of power battery component, power battery |
| CN109428018A (en) * | 2017-09-03 | 2019-03-05 | 湖州南浔遨优电池有限公司 | A kind of lithium battery using Novel pressure relief device |
-
2015
- 2015-12-21 CN CN201521066925.2U patent/CN205177899U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109428018A (en) * | 2017-09-03 | 2019-03-05 | 湖州南浔遨优电池有限公司 | A kind of lithium battery using Novel pressure relief device |
| CN108550778A (en) * | 2018-05-29 | 2018-09-18 | 天津锦泰勤业精密电子有限公司 | Power battery plate, cover plate of power battery component, power battery |
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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: 20160420 |