CN209401667U - A kind of easy-to-dismount lithium battery cover plate and its lithium battery - Google Patents
A kind of easy-to-dismount lithium battery cover plate and its lithium battery Download PDFInfo
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- CN209401667U CN209401667U CN201920237005.4U CN201920237005U CN209401667U CN 209401667 U CN209401667 U CN 209401667U CN 201920237005 U CN201920237005 U CN 201920237005U CN 209401667 U CN209401667 U CN 209401667U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to battery cover board technical fields, specifically, it is related to a kind of easy-to-dismount lithium battery cover plate and its lithium battery, lithium battery cover plate includes metal cover board, compression moulding part and rivet, metal cover board is provided centrally with the vertical through-hole for running through metal cover board, rivet is fixedly mounted in through-holes, compression moulding part is arranged between metal cover board and rivet, and rivet and metal cover board insulated enclosure, the quadrangle of through-hole is provided with the vertical counter sink for running through metal cover board, and lithium battery includes metal shell, pole piece bracket, pole piece and lithium battery cover plate；Lithium battery cover plate is mounted by means of bolts on metal shell, and closed cavity is formed inside metal shell, and electrolyte is filled in the cavity；Pole piece bracket is slidably mounted in inside metal shell, and pole piece is fixedly mounted on pole piece internal stent, and electrolyte is difficult to reveal after lithium battery deformation, and is difficult to short circuit, and cover board is readily disassembled, so that lithium battery, which can replace electrolyte, completes renovation.
Description
Technical field
The utility model relates to battery cover board technical fields, and in particular, to a kind of easy-to-dismount lithium battery cover plate and
Its lithium battery.
Background technique
Lithium ion secondary battery due to having many advantages, such as that light-weight, small in size, pollution-free, internal pressure is small, inexpensive, at
Main power source is used to obtain for mancarried electronic aid.And battery is in use, especially high current charge-discharge or short circuit when, electricity
There are security risks in pond, are easy swell, or even explosion, burning.The safety issue for solving battery can be from the positive and negative anodes of battery
The chemical property of active material itself sets about improving, and can also be related to being improved from the structure of battery.
Positive active material for lithium ion secondary battery is usually lithium transition-metal oxide, and negative electrode active material is
Carbon material usually contains ethylene carbonate (EC), propene carbonate (PC), diethyl carbonate (DEC), carbonic acid first in electrolyte
The organic solvents such as ethyl ester (EMC), dimethyl carbonate (DMC) and lithium hexafluoro phosphate, LiBF4, lithium perchlorate, lithium halide,
The electrolytic salts such as chlorine lithium aluminate, fluorohydrocarbon base fluorine oxygen lithium phosphate and fluorohydrocarbon base Sulfonic Lithium.When battery under the conditions ofs super-charge super-discharge etc. work
When making, internal temperature of battery can be increased, if device is not effectively protected, battery may explode, burn.
The cover plate assembly of square lithium ion secondary battery is a key link of its structure design.Side in the prior art
The cover plate assembly of shape lithium ion secondary battery generally includes Aluminum cover, compression moulding part, welding piece, rivet, liquid injection hole.Wherein, compression moulding
It contacts, is contacted inside compression moulding part with rivet, rivet is riveted together with welding piece, which can be certain with Aluminum cover outside part
The contact open circuit of inside battery positive and negative anodes is prevented in degree.Liquid injection hole is that inside battery reservoir channel prevents in conjunction with external steel ball
Electrolyte leakage.
However, the battery of cover plate assembly using the above structure, in use, in case of battery drops cause battery to collide
Hard object bending, cover board are also easy to produce deformation and cause battery leakage, the perishable outside line of electrolyte and aluminum metal shell, make electricity
Pond failure；More serious situation is that compression moulding piece fails in cover plate assembly, and positive and negative electrode direct short-circuit may cause explosion on fire, draw
Play safety accident.
Chinese patent CN203812926U discloses a kind of lithium battery cover plate component, including metal substrate, rivet and compression moulding
Part；There is through-hole, the rivet is set in through-hole on the metal substrate；The compression moulding part is set to metal substrate and rivet
Between, and rivet and metal substrate insulated enclosure；Also there is groove on the metal substrate；It is described recessed on the metal substrate
The cross-sectional area of slot position is less than the cross-sectional area of through-hole position.
It can not be dismantled after the lithium battery cover plate installation of the patent disclosure, with the fast development of new energy technology, lithium electricity
Pond using more and more, when these batteries can only be charged to 80% or so of existing capacity, just be not suitable for continuing electronic
It is used on automobile, fluid infusion is carried out to the battery of capacity attenuation, the capacity and its cycle life of battery, the electricity after fluid infusion can be improved
Pond can be used for energy storage or household UPS (uninterruptible power supply), but currently used battery structure, can not carry out subsequent fluid infusion work
Sequence.
Chinese patent CN108735965A discloses a kind of lithium battery cover plate, including the note being provided on battery cover board ontology
Fluid apertures, lower aluminium flake, lower seal pad and sealing element, the liquid injection hole are the stepped hole that aperture is gradually reduced from up to down；Lithium electricity
The liquid replenishing method of pond cover board electrolyte replenishing structure, comprising the following steps: take out sealing element, by the injection needle of electrolyte injection equipment
Head sequentially passes through the through-hole one of lower seal pad, lower aluminium flake, is injected the electrolyte into lithium battery by fluid injection syringe needle, sealing element is put
It sets in seal groove, fluid infusion process can be completed.
The battery cover board of the patent disclosure substantially can not also be dismantled, and the only sealing element that can be dismantled dismantles sealing element
Fluid infusion is carried out by special syringe afterwards and needs professional equipment, higher cost, and waste liquid can not be taken out, needs one kind convenient for tearing open
The lithium battery cover plate and lithium battery unloaded.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of easy-to-dismount lithium battery cover plate and its lithium battery,
Electrolyte is sealed in lithium battery interior by two seals by the lithium battery, so that electrolyte is difficult to let out after lithium battery deformation
Dew, and cover board positive electrode and negative electrode it is completely insulated and distance farther out, deform its positive electrode and negative electrode even if lithium battery cover plate
It is difficult to contact, so that lithium battery is difficult to short circuit, and lithium battery cover plate is readily disassembled, so that lithium battery can be replaced
Electrolyte completes renovation.
A kind of easy-to-dismount lithium battery cover plate disclosed by the utility model, includes metal cover board, compression moulding part and rivet,
Metal cover board is provided centrally with the vertical through-hole for running through metal cover board, and rivet is fixedly mounted in through-holes, and the setting of compression moulding part exists
Between metal cover board and rivet, and rivet and metal cover board insulated enclosure, the quadrangle of through-hole are provided with vertically through metal cover
The counter sink of plate.
Preferably, compression moulding part passes through through-hole, and extends to form flange to the upper and lower surfaces of metal cover board respectively, presses
Rivet hole is provided in plastic, rivet is fixedly mounted in rivet hole.
It preferably, further include having weldment, weldment is set to the lower section of metal cover board, and rivet passes through rivet hole and welding
Part riveting.
Preferably, weldment includes welding plate, welding side plate and the welding edge of a wing, welding plate, welding side plate and weldering
Connecing the edge of a wing is rectangular plate, and welding plate is tightly attached to the bottom surface of compression moulding part and is fixedly connected with rivet, and welding side plate self-brazing connects
The two sides of plate extend straight down, and the lower horizontal of the welding edge of a wing from welding side plate extends outwardly, welding plate, welding side plate
It is integrated with the welding edge of a wing, the projection of welding plate in the vertical direction is located inside the bottom surface of compression moulding part.
Preferably, liquid injection hole is provided on metal cover board.
A kind of lithium battery includes metal shell, pole piece bracket, pole piece and lithium battery cover plate；Lithium battery cover plate passes through spiral shell
Bolt is fixedly mounted on metal shell, and closed cavity is formed inside metal shell, and electrolyte is filled in the cavity；Pole piece
Bracket is slidably mounted in inside metal shell, and pole piece is fixedly mounted on pole piece internal stent, pole piece include anode ear and
Negative electrode lug, anode ear are electrically connected with metal cover board, and negative electrode lug is electrically connected with weldment.
Preferably, metal shell and pole piece bracket are hollow and top end opening round rectangle box body, metal shell
Inner wall quadrangle is provided with the cylindrical sliding rail that metal shell top is extended to from metal shell bottom end, the outer wall quadrangle of pole piece bracket
It is provided with the sliding slot being slidably matched with sliding rail, is provided on sliding rail and the one-to-one threaded hole of counter sink.
Preferably, metal shell top is provided with the slot under the sealing ring that metal shell and sliding rail are arranged, metal cover board
Bottom end be provided with the liquid injection hole symmetrical above and below with slot under sealing ring, slot and liquid injection hole combine the sealing ring circularized under sealing ring
Mounting groove is equipped with sealing ring in sealing ring mounting groove.
Preferably, metal cover board further includes having ball sealer, and the diameter of ball sealer is greater than the bore of liquid injection hole, ball sealer setting
It is sealed in liquid injection hole and by liquid injection hole.
Preferably, the bottom end of metal cover board is provided with the spacer ring extended straight down, bottom end and the pole piece bracket of spacer ring
Top abuts, and is sealed between spacer ring and pole piece bracket by sealing ring.
The utility model has the advantages that
The pole piece of lithium battery is embeddedly mounted on pole piece internal stent, and then pole piece bracket is slided by sliding slot and sliding rail
It is placed to inside metal shell；Then compression moulding part is fixedly mounted on through-hole, then is fixedly mounted on weldment by rivet
The lower section of compression moulding part；Then the anode of pole piece is welded on metal cover board, then the cathode of pole piece is welded on weldment；So
Metal cover board is covered on metal shell afterwards and sealing ring is placed between metal shell and metal cover board, then is passed through by bolt
Counter sink is connect with threaded hole, so that metal cover board is fixedly mounted on metal shell, by liquid injection hole to metal cover board and
The cavity inside that pole piece bracket is formed injects electrolyte, seals liquid injection hole finally by ball sealer, that is, completes lithium battery
Assembly.
After lithium battery reaches service life, the bolt of metal cover board quadrangle is removed, metal cover board is lifted up, gold
Belonging to cover board drives pole piece and pole piece bracket to extract out from metal shell together, is agitated between spacer ring and pole piece bracket by tool
Connection gap removes pole piece bracket from pole piece, after toppling over waste and old electrolyte and cleaning out, digs out from metal cover board
Ball sealer, then metal cover board, pole piece bracket and pole piece are installed back in metal shell, new electrolysis is then injected by liquid injection hole
Liquid, then sealed liquid injection hole by new ball sealer, that is, the renovation of lithium battery is completed, can degrade after lithium battery renovation makes
With, such as the battery of electric car is downgraded to uninterruptible power supply and is used.
1. electrolyte is sealed in lithium battery interior by two seals by the lithium battery, so that being electrolysed after lithium battery deformation
Liquid is difficult to reveal；
2. the positive electrode and negative electrode of the lithium battery cover plate it is completely insulated and distance farther out, even if lithium battery cover plate is deforming it just
Pole is also difficult to contact with cathode, so that lithium battery is difficult to short circuit；
3. the lithium battery cover plate is readily disassembled, so that lithium battery, which can replace electrolyte, completes renovation.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the lithium battery perspective view of embodiment；
Fig. 2 is the lithium battery stereogram exploded view one of embodiment；
Fig. 3 is the lithium battery stereogram exploded view two of embodiment；
Fig. 4 is the lithium battery cover plate perspective view of embodiment；
Fig. 5 is the lithium battery cover plate stereogram exploded view one of embodiment；
Fig. 6 is the lithium battery cover plate stereogram exploded view two of embodiment；
Fig. 7 is the lithium battery cross-sectional view of embodiment；
Fig. 8 is partial enlarged view at the A of implementation example figure 7；
Description of symbols:
Metal shell 1, sliding rail 1a, threaded hole 1b, slot 1c under sealing ring, metal cover board 2, through-hole 2a, counter sink 2b, fluid injection
Hole 2c, slot 2d, ball sealer 2e, spacer ring 2f on sealing ring, pole piece bracket 3, sliding slot 3a, sealing ring 4, compression moulding part 5, rivet hole 5a,
Rivet 6, weldment 7, welding plate 7a weld side plate 7b, weld edge of a wing 7c.
Specific embodiment
Multiple embodiments that the utility model will be disclosed with schema below, as clearly stated, in many practices
Details will be explained in the following description.It should be appreciated, however, that the details in these practices does not apply this with limitation practical new
Type.That is, the details in these practices is non-essential in some embodiments of the utility model.In addition, for letter
For the sake of changing schema, some known usual structures and component will be painted it in the drawings in simply illustrative mode.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and non-specifically
The meaning of order or cis-position is censured, it is also non-to limit the utility model, it is retouched just for the sake of difference with same technique term
The component stated or operation are not understood to indicate or imply its relative importance or implicitly indicate indicated technology
The quantity of feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not within the protection scope of the requires of the utility model.
It include metal cover board 2,5 and of compression moulding part referring to figs. 1 to a kind of easy-to-dismount lithium battery cover plate shown in Fig. 8
Rivet 6, metal cover board 2 are provided centrally with the vertical through-hole 2a for running through metal cover board 2, and rivet 6 is fixedly mounted in through-hole 2a,
Compression moulding part 5 is arranged between metal cover board 2 and rivet 6, and 2 insulated enclosure of rivet 6 and metal cover board, and the quadrangle of through-hole 2a is set
It is equipped with the vertical counter sink 2b for running through metal cover board 2.
Compression moulding part 5 is mounted between metal cover board 2 and rivet 6 and keeps apart metal cover board 2 and rivet 6, it is ensured that gold
Belong to completely insulated between cover board 2 and rivet 6；Metal cover board 2 is fixedly connected by bolt with the shell of lithium battery, bolt insertion peace
In counter sink 2b, pass through demounting bolt, that is, quick release metal cover board 2.
Compression moulding part 5 passes through through-hole 2a, and extends to form flange, compression moulding to the upper and lower surfaces of metal cover board 2 respectively
Rivet hole 5a is provided in part 5, rivet 6 is fixedly mounted in rivet hole 5a.
Compression moulding part 5 is tightly attached to the upper and lower surfaces of metal cover board 2 by lower flange thereon, while by rivet 6 and gold
Belong to cover board 2 to be dielectrically separated from.
It further include having weldment 7, weldment 7 is set to the lower section of metal cover board 2, and rivet 6 passes through rivet hole 5a and welding
Part 7 rivets.
Weldment 7 is fixedly mounted on the lower section of metal cover board 2 by rivet 6, and weldment 7 is used to weld installation lithium battery
Electrode.
Weldment 7 includes welding plate 7a, welding side plate 7b and welding edge of a wing 7c, welding plate 7a, welding side plate 7b
It is rectangular plate with welding edge of a wing 7c, welding plate 7a is tightly attached to the bottom surface of compression moulding part 5 and is fixedly connected with rivet 6, welding
Side plate 7b extends straight down from the two sides of welding plate 7a, and welding edge of a wing 7c is from the lower horizontal of welding side plate 7b to extension
It stretches, welding plate 7a, welding side plate 7b and welding edge of a wing 7c are integrated, and the projection of welding plate 7a in the vertical direction is located at
Inside the bottom surface of compression moulding part 5.
Welding plate 7a is placed in inside the bottom surface of compression moulding part 5, even if lithium battery is because collide welding plate when being deformed
7a will not be contacted with metal cover board 2, to avoid lithium battery short-circuit；Since welding plate 7a area is smaller, it is not easy to weld, institute
With the electrode welding of lithium battery on welding edge of a wing 7c, welding edge of a wing 7c is located at the lower section of welding plate 7a, by straight down
The welding side plate 7b of extension by welding plate 7a with welding the edge of a wing 7c connect so that lithium battery deform when welding edge of a wing 7c be not easy and
Metal cover board 2 contacts.
Liquid injection hole 2c is provided on metal cover board 2.
Electrolyte in lithium battery is injected into lithium battery interior by liquid injection hole 2c.
A kind of lithium battery includes metal shell 1, pole piece bracket 3, pole piece and lithium battery cover plate；Lithium battery cover plate passes through
Bolt is fixedly mounted on metal shell 1, and closed cavity is formed inside metal shell 1, and electrolyte is filled in the cavity；
Pole piece bracket 3 is slidably mounted in inside metal shell 1, and pole piece is fixedly mounted on inside pole piece bracket 3, and pole piece includes just
Tab and negative electrode lug, anode ear are electrically connected with metal cover board 2, and negative electrode lug is electrically connected with weldment 7.
Lithium battery is combined into the shell for installing pole piece by metal shell 1 and metal cover board 2, pole piece it is fixedly embedded
Inside pole piece bracket 3, so that pole piece is easy to take out from the shell of lithium battery.
Metal shell 1 and pole piece bracket 3 are hollow and top end opening round rectangle box body, the inner wall of metal shell 1
Quadrangle is provided with the cylindrical sliding rail 1a that 1 top of metal shell is extended to from 1 bottom end of metal shell, the outer wall four of pole piece bracket 3
Angle is provided with the sliding slot 3a being slidably matched with sliding rail 1a, is provided on sliding rail 1a and the one-to-one threaded hole 1b of counter sink 2b.
Metal cover board 2 passes through counter sink 2b by bolt and is threadedly coupled with threaded hole 1b, and metal cover board 2 and pole piece welding are solid
It is fixed, it unloads and moves up metal cover board 2 after bolt and pole piece and pole piece bracket 3 can be slided taking-up together, then clean up useless
The installation of metal cover board 2 is gone back again and fills new electrolyte by old electrolyte, and the lithium battery that can be up to service life degrades
It uses.
1 top of metal shell is provided with the slot 1c under the sealing ring that metal shell 1 and sliding rail 1a are arranged, metal cover board 2
Bottom end be provided with the liquid injection hole 2c symmetrical above and below with slot 1c under sealing ring, under sealing ring slot 1c and liquid injection hole 2c combination circularize
Sealing ring mounting groove, sealing ring 4 is installed in sealing ring mounting groove.
It is sealed between metal shell 1 and metal cover board 2 by sealing ring 4, it is ensured that inside metal shell 1 and metal cover board 2
Electrolyte will not reveal.
Metal cover board 2 further includes having ball sealer 2e, and the diameter of ball sealer 2e is greater than the bore of liquid injection hole 2c, and ball sealer 2e is set
It sets in liquid injection hole 2c and seals liquid injection hole 2c.
After the completion of electrolyte in lithium battery is injected by liquid injection hole 2c, liquid injection hole 2c is sealed by ball sealer 2e, two
Ball sealer 2e is taken out again before secondary filling electrolyte, the ball sealer 2e more renewed after the completion of injection reappears liquid injection hole 2c is close
Envelope.
The bottom end of metal cover board 2 is provided with the spacer ring 2f extended straight down, the bottom end of spacer ring 2f and the top of pole piece bracket 3
End abuts, and is sealed between spacer ring 2f and pole piece bracket 3 by sealing ring.
Pole piece bracket 3 in metal shell 1 slidably, after metal cover board 2 is fixedly mounted on 1 top of metal shell,
Pole piece bracket 3 is tightly pushed against inside metal shell 1 by metal cover board 2 by spacer ring 2f, so that pole piece bracket 3 can not be slided
It is dynamic, while metal cover board 2 is less than metal by foring a closed cavity, the cavity between spacer ring 2f and pole piece bracket 3
The airtight cavity formed between shell 1 and metal cover board 2, electrolyte are injected into metal cover board 2 and pole piece branch by liquid injection hole 2c
Between frame 3, reduce the consumption of electrolyte.
Working principle:
The pole piece of lithium battery is embeddedly mounted on inside pole piece bracket 3, and then pole piece bracket 3 passes through sliding slot 3a and sliding rail
1a sliding is placed to inside metal shell 1；Then compression moulding part 5 is fixedly mounted on through-hole 2a, then passes through rivet 6 for weldment
7 are fixedly mounted on the lower section of compression moulding part 5；Then the anode of pole piece is welded on metal cover board 2, then the cathode of pole piece is welded
On weldment 7；Then metal cover board 2 is covered on metal shell 1 and sealing ring 4 is placed in metal shell 1 and metal cover board 2
Between, then counter sink 2b is passed through by bolt and is connect with threaded hole 1b, so that metal cover board 2 is fixedly mounted on metal shell 1
On, electrolyte is injected to the cavity inside that metal cover board 2 and pole piece bracket 3 are formed by liquid injection hole 2c, finally by ball sealer
2e seals liquid injection hole 2c, that is, completes the assembly of lithium battery.
After lithium battery reaches service life, 2 four jiaos of metal cover board of bolt is removed, metal cover board 2 is lifted up,
Metal cover board 2 drives pole piece and pole piece bracket 3 to extract out from metal shell 1 together, agitates spacer ring 2f and pole piece branch by tool
Connection gap between frame 3 removes pole piece bracket 3 from pole piece, after toppling over waste and old electrolyte and cleaning out, from metal
Ball sealer 2e is dug out on cover board 2, then metal cover board 2, pole piece bracket 3 and pole piece are installed back in metal shell 1, then passes through note
Fluid apertures 2c injects new electrolyte, then is sealed liquid injection hole 2c by new ball sealer 2e, that is, completes the renovation of lithium battery, lithium
Can degrade use after battery renovation, such as the battery of electric car is downgraded to uninterruptible power supply and is used.
Upper described only the embodiments of the present invention, is not intended to limit the utility model.For this field
For technical staff, various modifications and changes may be made to the present invention.The interior institute of all spirit and principle in the utility model
Any modification, equivalent substitution, improvement and etc. of work should all include within the scope of the claims of the utility model.
Claims (10)
1. a kind of easy-to-dismount lithium battery cover plate, it is characterised in that: include metal cover board (2), compression moulding part (5) and rivet
(6), metal cover board (2) is provided centrally with the vertical through-hole (2a) for running through metal cover board (2), and rivet (6) is fixedly mounted on logical
In hole (2a), compression moulding part (5) is arranged between metal cover board (2) and rivet (6), and rivet (6) and metal cover board (2) insulation
Sealing, the quadrangle of through-hole (2a) are provided with the vertical counter sink (2b) for running through metal cover board (2).
2. a kind of easy-to-dismount lithium battery cover plate according to claim 1, it is characterised in that: compression moulding part (5) passes through logical
Hole (2a), and flange is extended to form to the upper and lower surfaces of metal cover board (2) respectively, rivet is provided in compression moulding part (5)
Hole (5a), rivet (6) are fixedly mounted in rivet hole (5a).
3. a kind of easy-to-dismount lithium battery cover plate according to claim 2, it is characterised in that: further include having weldment
(7), weldment (7) is set to the lower section of metal cover board (2), and rivet (6) passes through rivet hole (5a) and weldment (7) and rivets.
4. a kind of easy-to-dismount lithium battery cover plate according to claim 3, it is characterised in that: weldment (7) includes
Welding plate (7a), welding side plate (7b) and the welding edge of a wing (7c), welding plate (7a), welding side plate (7b) and the welding edge of a wing
(7c) is rectangular plate, and welding plate (7a) is tightly attached to the bottom surface of compression moulding part (5) and is fixedly connected with rivet (6), weld side
The two sides of plate (7b) from welding plate (7a) extend straight down, welding the edge of a wing (7c) from welding side plate (7b) lower horizontal to
Outer extension, welding plate (7a), welding side plate (7b) and the welding edge of a wing (7c) are integrated, and welding plate (7a) is in vertical direction
On projection be located inside the bottom surface of compression moulding part (5).
5. a kind of easy-to-dismount lithium battery cover plate according to claim 1, it is characterised in that: metal cover board is set on (2)
It is equipped with liquid injection hole (2c).
6. a kind of lithium battery, it is characterised in that: include in metal shell (1), pole piece bracket (3), pole piece and claim 1-5
Lithium battery cover plate described in any one；Lithium battery cover plate is mounted by means of bolts on metal shell (1), in metal shell
(1) internal to form closed cavity, electrolyte is filled in the cavity；Pole piece bracket (3) is slidably mounted in metal shell
(1) internal, it is internal that pole piece is fixedly mounted on pole piece bracket (3), and pole piece includes anode ear and negative electrode lug, anode ear and metal cover
Plate (2) electrical connection, negative electrode lug are electrically connected with weldment (7).
7. a kind of lithium battery according to claim 6, it is characterised in that: during metal shell (1) and pole piece bracket (3) be
Empty and top end opening round rectangle box body, the inner wall quadrangle of metal shell (1) is provided with from metal shell (1) bottom end and extends to
The cylindrical sliding rail (1a) on metal shell (1) top, the outer wall quadrangle of pole piece bracket (3) is provided with to be slidably matched with sliding rail (1a)
Sliding slot (3a), be provided on sliding rail (1a) and counter sink (2b) one-to-one threaded hole (1b).
8. a kind of lithium battery according to claim 7, it is characterised in that: metal shell (1) top is provided with around metal
Slot (1c) under shell (1) and the sealing ring of sliding rail (1a) setting, the bottom end of metal cover board (2) is provided with and slot under sealing ring (1c)
Liquid injection hole (2c) symmetrical above and below, slot (1c) and liquid injection hole (2c) combine the sealing ring mounting groove circularized, sealing under sealing ring
Sealing ring (4) are installed in circle mounting groove.
9. a kind of lithium battery according to claim 8, it is characterised in that: metal cover board (2) further includes having ball sealer (2e),
The diameter of ball sealer (2e) is greater than the bore of liquid injection hole (2c), and ball sealer (2e) is arranged in liquid injection hole (2c) and by liquid injection hole
(2c) sealing.
10. a kind of lithium battery according to claim 6, it is characterised in that: the bottom end of metal cover board (2) be provided with vertically to
The bottom end of the spacer ring (2f) of lower extension, spacer ring (2f) is abutted with the top of pole piece bracket (3), spacer ring (2f) and pole piece bracket (3)
Between pass through sealing ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920237005.4U CN209401667U (en) | 2019-02-25 | 2019-02-25 | A kind of easy-to-dismount lithium battery cover plate and its lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920237005.4U CN209401667U (en) | 2019-02-25 | 2019-02-25 | A kind of easy-to-dismount lithium battery cover plate and its lithium battery |
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| CN209401667U true CN209401667U (en) | 2019-09-17 |
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| CN201920237005.4U Active CN209401667U (en) | 2019-02-25 | 2019-02-25 | A kind of easy-to-dismount lithium battery cover plate and its lithium battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909441A (en) * | 2021-03-09 | 2021-06-04 | 大连中比动力电池有限公司 | Modular lithium ion battery and production method thereof |
| CN113346173A (en) * | 2021-05-25 | 2021-09-03 | 安徽真莱斯新能源科技有限公司 | Lithium battery system for fertilizer distributor |
-
2019
- 2019-02-25 CN CN201920237005.4U patent/CN209401667U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909441A (en) * | 2021-03-09 | 2021-06-04 | 大连中比动力电池有限公司 | Modular lithium ion battery and production method thereof |
| CN113346173A (en) * | 2021-05-25 | 2021-09-03 | 安徽真莱斯新能源科技有限公司 | Lithium battery system for fertilizer distributor |
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