CN205542994U - Novel explosion -proof combined cover cap of lithium cell flame -retardant - Google Patents
Novel explosion -proof combined cover cap of lithium cell flame -retardant Download PDFInfo
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- CN205542994U CN205542994U CN201620324173.3U CN201620324173U CN205542994U CN 205542994 U CN205542994 U CN 205542994U CN 201620324173 U CN201620324173 U CN 201620324173U CN 205542994 U CN205542994 U CN 205542994U
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- explosion
- proof
- sealing ring
- cover cap
- proof valve
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a novel explosion -proof combined cover cap of lithium cell flame -retardant, including explosion -proof valve, the sealing washer, the floor, PTC piece and top cap, inboard competent face of sealing washer and vertical face, explosion -proof valve is by the central disc of bottom, the conical surface and the outer lane anchor ring of transition constitute, the one end of conical surface connection rib board, the sealing washer is connected to the other end of floor, it is gapped between the lower bottom surface of the horizontal plane of sealing washer and plane that the floor constitutes and anchor ring, scribble the fire -retardant glue of one deck in the clearance, the PTC piece is connected to explosion -proof valve collar face, the top cap is connected to PTC piece top, be fixed with high temperature resistant spring steel between the vertical face of top cap and sealing washer. This scheme is through providing a novel explosion -proof combined cover cap of lithium cell flame -retardant, through handling carrying out the rubber coating between the block internal connection layer, coats fire -retardant glue to play the flame -retardant effect to the lithium cell, increase high temperature resistant spring steel simultaneously on the top cap, prevent that the top cap from droing, reinforce the explosion -proof function of block.
Description
Technical field
This utility model relates to a kind of battery combination block, particularly to a kind of novel lithium battery burn-proof and explosion prevention combination cover cap.
Background technology
Battery is as a kind of energy source, and the various aspects in the modern life all play key player, can power with long-time stable, have stable voltage x current, are not affected by outside climatic, stable and reliable for performance.Wherein, lithium battery is by storing the plurality of advantages such as high, lightweight, the environmental protection of energy density, it is widely used in all kinds of electronic goods, but lithium is metal the most active in nature, due to the chemical characteristic that it is active, when lithium exposes and touches oxygen in atmosphere, violent oxidation reaction will be produced and spontaneous combustion, blast occur.In life, lithium battery spontaneous combustion explosive incident takes place frequently, and there is serious potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of novel lithium battery burn-proof and explosion prevention combination cover cap, by carrying out gluing process between block interconnection layer, coat high temperature resistant glue, thus play the anti-flaming effect to lithium battery, on top cover, increase high temperature resistant spring steel plate, the explosion prevention function of strengthening block simultaneously.
Above-mentioned purpose of the present utility model has the technical scheme that a kind of novel lithium battery burn-proof and explosion prevention combination cover cap, including explosion-proof valve, sealing ring, floor, PTC sheet and top cover, horizontal plane and vertical plane is had inside sealing ring, explosion-proof valve is by the central disc of bottom, the conical surface of transition and outer ring anchor ring are constituted, the conical surface connects one end of floor, the other end of floor connects sealing ring, gap is had between plane and the bottom surface of anchor ring that the horizontal plane of sealing ring and floor are constituted, one layer of flame-retardant glue it is coated with in gap, explosion-proof valve anchor ring connects PTC sheet, PTC sheet is connected above top cover, high temperature resistant spring steel plate it is fixed with between top cover and sealing ring vertical plane.
By using technique scheme; last layer flame-retardant glue it is coated with between explosion-proof valve, floor and sealing ring; first the fixing effect strengthening between each several part can be played; flame-retardant glue has excellent insulating properties and thermal diffusivity simultaneously; when internal temperature of battery raises or is short-circuited; can effectively protect battery, when there being air to enter in block, can prevent lithium from touching oxygen and spontaneous combustion occurs；The top cover rigidity of lithium battery is the biggest, when having multiple battery to be pressed in block and by outside great impulsive force, top cover will be transferred on sealing ring active force, the sealing effectiveness causing sealing ring is deteriorated, it is likely to result in battery fluid to reveal, the high temperature resistant spring steel plate set up has elasticity, when by enormous impact power, sealing ring can be played cushioning effect, ensure the airtight quality of sealing ring, steel disc is high temperature resistant simultaneously, when ambient temperature is the highest, it is possible to effectively block the high temperature impact on inside battery, reduce the probability that set off an explosion because of high temperature.
Preferably, the vertical plane of sealing ring having boss structure, top cover is fixed on below boss, and the thickness of high temperature resistant spring steel plate is consistent with the boss in sealing ring vertical plane, and is connected with boss, is fixed by hot pressing.
By using technique scheme, high temperature resistant spring steel plate is arranged between top cover and sealing ring, can prevent Top cover flying, and prevent owing to external impact force is transferred completely on sealing ring by the rigidity of top cover, fixing between parts next to top cover plays compaction simultaneously.
Preferably, flame-retardant glue is ethoxyline resin antiflaming glue.
By using technique scheme, ethoxyline resin antiflaming glue can fix explosion-proof valve, floor and sealing ring, and epoxide-resin glue is the most waterproof, oil resistant, strong alkali-acid resistance, can prevent battery fluid from revealing corrosion.
Preferably, the horizontal plane of sealing ring having boss structure, boss is positioned in fire retardant glue water layer, and top is pressed on the bottom surface of explosion-proof valve anchor ring.
By using technique scheme, fixation is played in the design of boss.
Preferably, top cover has steam vent.
By using technique scheme, when being short-circuited in battery, gas can quickly be discharged by steam vent, reduces block internal gas pressure, prevents battery explosion.
Preferably, the conical surface and the anchor ring junction of explosion-proof valve is provided with groove.
By using technique scheme, when battery is short-circuited a large amount of gases of generation, and during the opening pressure of the atmospheric pressure value laser solder joint that reaches explosion-proof valve central authorities disc, the beneficially explosion-proof valve that is designed with of groove deforms and is easily broken off, and allows gas quickly discharge.
Preferably, the central disc of explosion-proof valve is connected by the solder joint of laser spot welding dividing plate.
By using technique scheme, laser spot welding operation is simple, and explosion-proof valve can be made quickly to disconnect when short-circuit protection, cuts off circuit.
To sum up, this utility model coats high temperature resistant glue between existing block interconnection layer, plays the anti-flaming protective action to lithium battery, sets up high temperature resistant spring steel plate on top cover simultaneously, prevents Top cover flying, the explosion prevention function of strengthening block.
Accompanying drawing explanation
Fig. 1 is novel lithium battery burn-proof and explosion prevention combination cover cap sectional view.
Reference: 1, explosion-proof valve；2 sealing rings；3 floors；4、PTC；5, top cover；6, horizontal plane；7, vertical plane；8, disc；9, the conical surface；10, anchor ring；11, flame-retardant glue；12, high temperature resistant spring steel plate；13, boss；14, steam vent；15, groove；16, solder joint；17, dividing plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
nullAs shown in Figure 1，A kind of novel lithium battery burn-proof and explosion prevention combination cover cap，The top is top cover 5，Top cover 5 material is carbon steel SPCC，At least three steam vent 14 is had on top cover 5，Top cover 5 is presented herein below the critesistor PTC4 being made up of macromolecule polymeric material，It is by central authorities' disc 8 below PTC4、The transition conical surface 9、The explosion-proof valve 1 that outer ring anchor ring 10 is constituted，The conical surface 9 and anchor ring 10 junction are provided with groove 15，Explosion-proof valve 1 is made up of L2 aluminum，And the anchor ring 10 of explosion-proof valve 1 connects with PTC4，Explosion-proof valve 1 conical surface 9 connects one end of floor 3，The other end of floor 3 is connected with the horizontal plane 6 of sealing ring 2，Certain interval is had between plane and the bottom surface of explosion-proof valve 1 anchor ring 10 that the horizontal plane 6 of floor 3 and sealing ring 2 is constituted，Sealing ring 2 material is modified polypropene PP，Sealing ring 2 is internal is divided into horizontal plane 6 and vertical plane 7，And all there is boss 13 structure，Boss 13 top of horizontal plane 6 is pressed in the bottom surface of explosion-proof valve 1 anchor ring 10，Last layer ethoxyline resin antiflaming glue 11 it is coated with in gap，It is fixed with high temperature resistant spring steel plate 12 between boss 13 and top cover 5 in vertical plane 7，Explosion-proof valve 1 central authorities disc 8 is by the solder joint connecting partition of laser spot welding，Top cover 5、PTC4、Floor 3、Dividing plate 17 is fixed by hot pressing mode.
When there being air to enter in battery, elemental lithium touches oxygen and can occur violent oxidation reaction that spontaneous combustion occurs, ethoxyline resin antiflaming glue 11 has flame-retarding characteristic, cells burst can be prevented, when battery is short-circuited, gas is produced in battery, when gas gets more and more, when air pressure reaches the threshold value that laser solder joint 16 disconnects, gas washes explosion-proof valve 1 open, explosion-proof valve 1 deforms fracture, gas is discharged from the steam vent 14 of top cover 5, play short circuit explosion-proof, high temperature resistant spring steel plate 17 has elasticity, the energy absorbing external impulsive force to block, sealing ring 2 is avoided to make sealing effectiveness decline due to the rigidity of top cover 5.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (7)
- null1. a novel lithium battery burn-proof and explosion prevention combination cover cap，Including explosion-proof valve (1)、Sealing ring (2)、Floor (3)、PTC(4) sheet and top cover (5)，It is characterized in that: there are horizontal plane (6) and vertical plane (7) in described sealing ring (2) inner side，Explosion-proof valve (1) is by the central disc (8) of bottom、The conical surface (9) of transition and outer ring anchor ring (10) are constituted，The conical surface (9) connects one end of floor (3)，The other end of floor (3) connects sealing ring (2)，Gap is had between plane and the bottom surface of anchor ring (10) that the horizontal plane (6) of sealing ring (2) and floor (3) are constituted，One layer of flame-retardant glue (11) it is coated with in gap，Explosion-proof valve (1) anchor ring (10) connects PTC(4) sheet，PTC(4) sheet is connected above top cover (5)，High temperature resistant spring steel plate (12) it is fixed with between top cover (5) and sealing ring (2) vertical plane (7).
- Novel lithium battery burn-proof and explosion prevention combination cover cap the most according to claim 1, it is characterized in that: on the vertical plane (7) of described sealing ring (2), there is boss (13) structure, top cover (5) is fixed on boss (13) lower section, the thickness of high temperature resistant spring steel plate (12) is consistent with the boss (13) in sealing ring (2) vertical plane (7), and be connected with boss (13), fixed by hot pressing.
- Novel lithium battery burn-proof and explosion prevention combination cover cap the most according to claim 1, it is characterised in that: described flame-retardant glue (11) is ethoxyline resin antiflaming glue (11).
- Novel lithium battery burn-proof and explosion prevention combination cover cap the most according to claim 1, it is characterized in that: on the horizontal plane (6) of described sealing ring (2), there is boss (13) structure, boss (13) is positioned in flame-retardant glue (11) layer, and top is pressed on the bottom surface of explosion-proof valve (1) anchor ring (10).
- Novel lithium battery burn-proof and explosion prevention combination cover cap the most according to claim 1, it is characterised in that: have steam vent (14) on described top cover (5).
- Novel lithium battery burn-proof and explosion prevention combination cover cap the most according to claim 1, it is characterised in that: the conical surface (9) and anchor ring (10) junction of described explosion-proof valve (1) are provided with groove (15).
- Novel lithium battery burn-proof and explosion prevention combination cover cap the most according to claim 1, it is characterised in that: the central disc (8) of described explosion-proof valve (1) is connected by the solder joint (16) of laser spot welding dividing plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620324173.3U CN205542994U (en) | 2016-04-18 | 2016-04-18 | Novel explosion -proof combined cover cap of lithium cell flame -retardant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620324173.3U CN205542994U (en) | 2016-04-18 | 2016-04-18 | Novel explosion -proof combined cover cap of lithium cell flame -retardant |
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| Publication Number | Publication Date |
|---|---|
| CN205542994U true CN205542994U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620324173.3U Active CN205542994U (en) | 2016-04-18 | 2016-04-18 | Novel explosion -proof combined cover cap of lithium cell flame -retardant |
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| CN (1) | CN205542994U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505164A (en) * | 2016-12-12 | 2017-03-15 | 苏州安靠电源有限公司 | A kind of anode block and the battery with the block |
| WO2019001193A1 (en) * | 2017-06-28 | 2019-01-03 | 比亚迪股份有限公司 | Battery cover assembly, single-cell battery, battery module, power battery pack, and electric vehicle |
| CN109546051A (en) * | 2018-11-02 | 2019-03-29 | 襄阳全系康动力机械有限责任公司 | A kind of mine anti-explosion power packet |
| CN113346189A (en) * | 2021-06-15 | 2021-09-03 | 安徽捷创科技有限公司 | Lithium battery cap structure convenient to dismantle |
-
2016
- 2016-04-18 CN CN201620324173.3U patent/CN205542994U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505164A (en) * | 2016-12-12 | 2017-03-15 | 苏州安靠电源有限公司 | A kind of anode block and the battery with the block |
| WO2019001193A1 (en) * | 2017-06-28 | 2019-01-03 | 比亚迪股份有限公司 | Battery cover assembly, single-cell battery, battery module, power battery pack, and electric vehicle |
| CN109546051A (en) * | 2018-11-02 | 2019-03-29 | 襄阳全系康动力机械有限责任公司 | A kind of mine anti-explosion power packet |
| CN109546051B (en) * | 2018-11-02 | 2021-09-17 | 襄阳全系康动力机械有限责任公司 | Mining explosion-proof power pack |
| CN113346189A (en) * | 2021-06-15 | 2021-09-03 | 安徽捷创科技有限公司 | Lithium battery cap structure convenient to dismantle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |