CN110311063A - A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof - Google Patents
A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof Download PDFInfo
- Publication number
- CN110311063A CN110311063A CN201910492627.6A CN201910492627A CN110311063A CN 110311063 A CN110311063 A CN 110311063A CN 201910492627 A CN201910492627 A CN 201910492627A CN 110311063 A CN110311063 A CN 110311063A
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- Prior art keywords
- seal
- ring
- lower casing
- upper casing
- casing
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- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 125000004122 cyclic group Chemical group 0.000 claims description 20
- 238000013461 design Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004880 explosion Methods 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000013022 venting Methods 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
- H01M10/0427—Button cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/109—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure of button or coin shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
-
- 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
-
- 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
Abstract
The invention discloses a kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, upper casing, lower casing, seal, upper casing and lower casing snapping, seal are set between upper casing and lower casing；The inner surface of seal is equipped with several first annular projections, and the outer surface of seal is equipped with several second annular projections, and upper casing is equipped with several ring-like the first annular projections of flange and ring-like flange staggeredly contradicts；Lower casing is equipped with several ring-like concave edges, and the second annular projection and ring-like concave edge staggeredly contradict；First annular projection is opposite relative to the locality of ring-like concave edge with the second annular projection relative to the locality of ring-like flange.The present invention makes battery have preferable sealing performance and explosion-proof performance, is also able to achieve while realizing multi-stage sealed multistage explosion-proof by carrying out compages design to upper casing, lower casing, seal three.
Description
Technical field
The present invention relates to technical field of lithium ion, in particular to a kind of battery seal knot that multi-stage sealed multistage is explosion-proof
Structure.
Background technique
With the raising of productivity level and the promotion of living standard, the consumption demand of various wearable electronic equipments
It continues to bring out and changes in eruptive growth, such as the novel wearable electronic equipment of smart glasses, smart watches, wireless headset
Generation.In various wearable electronic equipments, lithium ion button shape cell is commonly used to be powered.Due to lithium ion button shape cell
It is widely applied, how to guarantee that its security performance becomes the focus of a common concern.Guarantee the safety of lithium ion button shape cell
Can mainly account in terms of two: a sealing performance, i.e., the electrolyte for how preventing it internal leak；It is another
A is explosion-proof performance, i.e., how to prevent the explosion of the surge of its internal pressure and generation.In the prior art, mainly by
Gap location between the upper casing and lower casing of battery is arranged a sealing ring and leaks come the electrolyte for preventing it internal；In addition,
In the prior art, the gap size between the upper casing and lower casing of battery is mainly adjusted, makes to occur between upper casing and lower casing
The axial relative movement of certain distance, to discharge the pressure of inside battery, to realize explosion-proof.If the upper casing of battery and lower casing it
Between gap it is excessive, then explosion-proof performance is preferable, but its sealing performance is also poor simultaneously；If between the upper casing and lower casing of battery
Gap is too small, then sealing performance is preferable, but its explosion-proof performance is also poor simultaneously.As it can be seen that existing between sealing performance and explosion-proof performance
Certain contradiction.Application No. is 201910044428.9 Chinese invention patent applications to disclose a kind of miniature chargeable lithium of button
Battery structure component is additionally arranged cup to reach preferable sealing performance and explosion-proof performance simultaneously between upper casing and lower casing
Body, extends these components of guide tube at gradual-enlargement type guide tube, although be able to achieve sealing performance and explosion-proof performance while reaching preferable
Technical effect, but but also the internal structure of battery becomes complex, the manufacture difficulty of battery is exacerbated, and aggravate
The production cost of battery.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of battery seals that multi-stage sealed multistage is explosion-proof
Structure.
To achieve the above object, the present invention adopts the following technical scheme that:
A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, includes upper casing, lower casing, seal, the upper casing and it is described under
Shell snapping, the seal are set between the upper casing and the lower casing；
The inner surface of the seal is equipped with several first annular projections, and it is cyclic annular convex that the outer surface of the seal is equipped with several second
It rises, the upper casing is equipped with several ring-like flanges, and first annular projection and the ring-like flange staggeredly contradict, first ring
Shape protrusion is set to the upside of the ring-like flange；The lower casing be equipped with several ring-like concave edges, second annular projection with it is described
Ring-like concave edge staggeredly contradicts, and second annular projection is set to the downside of the ring-like concave edge；First annular projection is opposite
It is opposite relative to the locality of the ring-like concave edge with second annular projection in the locality of the ring-like flange；
Tapered at the faucal of the lower casing, the upper casing is equipped with the first oblique shoulder, and the centre of the seal is equipped with and described first
The flanging that oblique shoulder matches.
A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, includes upper casing, lower casing, seal, the upper casing and institute
Lower casing snapping is stated, the seal is set between the upper casing and the lower casing；
The inner surface of the seal is equipped with several first annular projections, and it is cyclic annular convex that the outer surface of the seal is equipped with several second
It rises, the lower casing is equipped with several ring-like concave edges, and second annular projection and the ring-like concave edge are inconsistent, and described first is cyclic annular
It is raised inconsistent with the shell wall of the upper casing；
Tapered at the faucal of the lower casing, the upper casing is equipped with the first oblique shoulder, and the centre of the seal is equipped with and described first
The flanging that oblique shoulder matches.
A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, includes upper casing, lower casing, seal, the upper casing and institute
Lower casing snapping is stated, the seal is set between the upper casing and the lower casing；
The inner surface of the seal is equipped with several first annular projections, and it is cyclic annular convex that the outer surface of the seal is equipped with several second
It rises, the upper casing is equipped with several ring-like flanges, and first annular projection and the ring-like flange are inconsistent, and described second is cyclic annular
It is raised inconsistent with the inner wall of the lower casing；
Tapered at the faucal of the lower casing, the upper casing is equipped with the first oblique shoulder, and the centre of the seal is equipped with and described first
The flanging that oblique shoulder matches.
A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, includes upper casing, lower casing, seal, the upper casing and institute
Lower casing snapping is stated, the seal is set between the upper casing and the lower casing, tapered at the faucal of the lower casing；
The inner surface of the seal is equipped with several first annular projections, and it is cyclic annular convex that the outer surface of the seal is equipped with several second
It rises, the upper casing is equipped with several ring-like flanges, and first annular projection and the ring-like flange staggeredly contradict, first ring
Shape protrusion is set to the upside of the ring-like flange；The lower casing be equipped with several ring-like concave edges, second annular projection with it is described
Ring-like concave edge staggeredly contradicts, and second annular projection is set to the downside of the ring-like concave edge；First annular projection is opposite
It is opposite relative to the locality of the ring-like concave edge with second annular projection in the locality of the ring-like flange.
The beneficial effects of the present invention are: present invention employs a kind of completely new lithium ion button shape cell structures, and tie
Structure is simple, and the overall structure of battery is more compact, by carrying out compages design to upper casing, lower casing, seal three, makes three
All linked with one another, the ring-like flange of upper casing and the ring-like concave edge of lower casing can increase intensity, and battery is made to have preferable sealing performance
And explosion-proof performance, it is also able to achieve while realizing multi-stage sealed multistage explosion-proof.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present invention in example 1.
Fig. 2 is the assembling schematic diagram of the present invention in example 1.
Fig. 3 is the structural schematic diagram of the present invention in example 2.
Fig. 4 is the structural schematic diagram of the present invention in the third embodiment.
Fig. 5 is structural schematic diagram of the present invention in example IV.
Fig. 6 is the structural schematic diagram that the present invention is in associated shape.
Fig. 7 is the structural schematic diagram that the present invention is in associated shape.
Fig. 8 is the structural schematic diagram that the present invention is in associated shape.
Fig. 9 is the structural schematic diagram that the present invention is in associated shape.
Figure 10 is the structural schematic diagram that the present invention is in associated shape.
Figure 11 is the structural schematic diagram that the present invention is in associated shape.
Figure 12 is the structural schematic diagram that the present invention is in associated shape.
Figure 13 is the structural schematic diagram that the present invention is in associated shape.
Figure 14 is the structural schematic diagram that the present invention is in associated shape.
Drawing reference numeral:
10/10A/10B/10C, upper casing；
11/11B/11C, ring-like flange；
12/12A/12B, the first oblique shoulder
20/20A/20B/20C, lower casing；
21/21A/21B/21C, faucal；
22/22A/22C, ring-like concave edge；
30/30A/30B/30C, seal；
301/301A/301B/301C, cirque structure；
302, local dent；
31/31A/31B/31C, the first annular projection；
32/32A/32B/32C, the second annular projection；
33/33A/33B, flanging；
34/34A/34B/34C, bottom edge.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
Implement one: it is a kind of to have both multi-stage sealed and explosion prevention function battery structure, it include upper casing 10, lower casing 20, seal
30, upper casing 10 and 20 snapping of lower casing, seal 30 are set between upper casing 10 and lower casing 20；
The inner surface of seal 30 is equipped with several first annular projections 31, and the outer surface of seal is equipped with several second annular projections 32,
Upper casing 10 is equipped with several ring-like flanges 11, and the first annular projection 31 is staggeredly contradicted with ring-like flange 11, and the first annular projection 31 is set
In the upside of ring-like flange 11；Lower casing 20 is equipped with several ring-like concave edges 22, and the second annular projection 32 is staggeredly supported with ring-like concave edge 22
Touching, the second annular projection 32 are set to the downside of ring-like concave edge 22；
In conjunction with shown in attached drawing 1 to attached drawing 2, the first annular projection 31 and the second annular projection 32 are incorporated at seal 30 and form a circle
Enclose cirque structure 301, seal 30 and cylinder piston (piston to piston seal) structure is similar.The material of seal 30 is specially
PP, but it is not limited to PP.During producing battery, seal 30 can be first moulded in the outer surface of upper casing 10, finally again will
The upper casing 10 for being molded with seal 30 buckles into lower casing 20；Or seal 30 can be first moulded in the inner surface of lower casing 20, finally again
Upper casing 10 is buckled into the lower casing 20 for being molded with seal 30.In addition, seal 30 can also be an individual part, it is not moulded in
Shell 10 or lower casing 20 assemble together with upper casing 10, lower casing 20.The ring-like flange 11 of upper casing 10, the ring-like concave edge 22 of lower casing 20 are equal
It can be realized by existing hardware processing technology, therefore no longer excessively be described herein.
The circular ring shape formed is combined with the second annular projection 32 by the first annular projection 31 due to being equipped with multi-turn at seal 30
Structure 301, in conjunction with shown in attached drawing 1, which is located at the ring-like flange 11 of upper casing 10 and the ring-like concave edge of lower casing 20
Between 22, the first annular projection 31 of cirque structure 301 is staggeredly contradicted with the ring-like flange 11 of upper casing 10, cirque structure
301 the second annular projection 32 is staggeredly contradicted with the ring-like concave edge 22 of lower casing 20, and the first annular projection 31 is relative to ring-like flange
11 locality is with the second annular projection 32 relative to the locality of ring-like concave edge 22 on the contrary, the first annular projection 31 is located at
The upside of cirque structure 301, the second annular projection 32 is located at the downside of cirque structure 301, simultaneously because the material of seal 30
Matter is specially PP, which has certain elasticity, in conjunction with shown in attached drawing 2, after upper casing 10 buckles into lower casing 20,
Under the extruding of upper casing 10 and lower casing 20, cirque structure 301 will appear elastic deformation (becoming slightly flat), and seal
Will receive at other wall thickness at 30 the ring-like flange 11 of upper casing 10, the ring-like concave edge 22 of lower casing 20 extruding and there is localized indentation
302 are fallen into, to reach preferable sealing performance.Meanwhile it is cyclic annular by the first annular projection 31 and second that multi-turn is equipped at seal 30
Protrusion 32 combines the cirque structure 301 formed, and upper casing 10 is correspondingly provided with multiple ring-like flanges 11, and lower casing 20 is also correspondingly
Multiple ring-like concave edges 22 are provided with, the multi-stage sealed of battery can be realized.The bottom folding of seal 30 has a circle bottom edge 34, upper casing 10
Faucal tightly suppress bottom edge 34, with play prevent inside battery electrolyte leak sealing function.In addition, in conjunction with attached drawing 1 and attached
Shown in Fig. 2, due to tapered at the faucal 21 of lower casing 20, structure can also play certain sealing function at this, facilitate battery
The further promotion of sealing performance.
Since the first annular projection 31 of cirque structure 301 and the ring-like flange 11 of upper casing 10 staggeredly contradict, circular ring shape
Second annular projection 32 of structure 301 is staggeredly contradicted with the ring-like concave edge 22 of lower casing 20, and the first annular projection 31 is relative to ring-like
The locality of flange 11 and the second annular projection 32 relative to ring-like concave edge 22 locality on the contrary, the first annular projection 31
Positioned at the upside of cirque structure 301, the second annular projection 32 is located at the downside of cirque structure 301.Due to the ring of upper casing 10
Type flange 11, seal 30 the first annular projection 31 be in round convex, upper casing 10 can smoothly move relative to seal 30, together at present
The ring-like concave edge 22 of shell 20, the second annular projection 32 of seal 30 are also in round convex, and lower casing 20 also can be with respect to seal 30 smoothly
It is mobile, so smooth axial direction can occur between upper casing 10 and lower casing 20 when the pressure of inside battery is increased sharply and expanded
Relative motion, to play the role of venting cell internal pressure, to reach preferable explosion-proof performance.Meanwhile it being set at seal 30
There is multi-turn to be combined the cirque structure 301 formed with the second annular projection 32 by the first annular projection 31, upper casing 10 is correspondingly set
Multiple ring-like flanges 11 are equipped with, lower casing 20 is also correspondingly provided with multiple ring-like concave edges 22, can carry out to battery repeatedly explosion-proof.
Seal 30 functions similarly to the slowing effect of the lanyard on road first when explosion-proof.In addition, in conjunction with shown in attached drawing 1, lower casing
Tapered at 20 faucal 21, upper casing 10 is equipped with the first oblique shoulder 12, and seal 30 is equipped with the flanging 33 matched with the first oblique shoulder 12,
After carrying out repeatedly explosion-proof to battery, when upper casing 10 and lower casing 20 move to extreme position in the axial direction, the shell of lower casing 20
Mouth 21 can block the flangings 33 of seal 30, so that the first oblique shoulder 12 to upper casing 10 limits, then prevent upper casing 10 under
The case where shell 20 completely disengages plays the explosion-proof of afterbody, in conjunction with above-mentioned cirque structure 301 with it is ring-like convex
The multiple explosion-proof that edge 11, ring-like concave edge 22 rise, the multistage that battery can be realized are explosion-proof.
The shell of the present embodiment a pair of upper casing 10 while shape, lower casing 20 shell while shape and the shape of seal 30 do not appoint
What is limited, in conjunction with shown in attached drawing 6 to attached drawing 14, the shell of upper casing 10 while shape, lower casing 20 shell while shape and seal 30 shape
Shape can be shape shown in attached drawing 6 to attached drawing 14.
Implement two: it is a kind of to have both multi-stage sealed and explosion prevention function battery structure, it include upper casing 10A, lower casing 20A, envelope
30A, upper casing 10A and lower casing 20A snapping are enclosed, seal 30A is set between upper casing 10A and lower casing 20A；
The inner surface of seal 30A is equipped with several first annular projection 31A, and it is cyclic annular convex that the outer surface of seal 30A is equipped with several second
32A is played, lower casing 20A is equipped with several ring-like concave edge 22A, and the second annular projection 32A and ring-like concave edge 22A are inconsistent, and first is cyclic annular
The shell wall of raised 31A and upper casing 10A are inconsistent；
In conjunction with shown in attached drawing 3, the first annular projection 31A and the second annular projection 32A are incorporated at seal 30A and form circle circle circle
Ring structure 301A, seal 30A and cylinder piston (piston to piston seal) structure is similar.The material of seal 30A is specially
PP, but it is not limited to PP.During producing battery, seal 30A can be first moulded in the outer surface of upper casing 10A, finally again
The upper casing 10A for being molded with seal 30A is buckled into lower casing 20A；Or seal 30A can be first moulded in the inner surface of lower casing 20A,
Finally upper casing 10A is buckled into the lower casing 20A for being molded with seal 30A again.In addition, seal 30A can also be an individual part,
It is not moulded in upper casing 10A or lower casing 20A, is assembled together with upper casing 10A, lower casing 20A.The ring-like concave edge 22A of lower casing 20A can pass through
Existing hardware processing technology is realized, therefore is no longer excessively described herein.
The annulus formed in conjunction with the second annular projection 32A due to being equipped with multi-turn at seal 30A by the first annular projection 31A
Shape structure 301A, since the material of seal 30A is specially PP, cirque structure 301A has certain elasticity, and second is cyclic annular
The ring-like concave edge 22A of raised 32A and lower casing 20A is inconsistent, and the shell wall of the first annular projection 31A and upper casing 10A is inconsistent.On
After shell 10A buckles into lower casing 20A, under the extruding of upper casing 10A and lower casing 20A, cirque structure 301A will appear elastic deformation,
The second inconsistent annular projection 32A can become slightly flat with ring-like concave edge 22A, inconsistent with the shell wall of upper casing 10A
First annular projection 31A is driven plain substantially, and will receive the ring-like concave edge 22A of lower casing 20A at other wall thickness at seal 30A
Extruding and there is local dent, to reach certain sealing performance.Meanwhile multi-turn is equipped at seal 30A by the first ring-type
The cirque structure 301A that raised 31A is formed in conjunction with the second annular projection 32A, lower casing 20A are correspondingly provided with multiple ring-like
The multi-stage sealed of battery can be realized in concave edge 22A.The bottom folding of seal 30A has a circle bottom edge 34A, and the faucal of upper casing 10A presses
Live in bottom edge 34A, to play the sealing function for preventing inside battery electrolyte from leaking.In addition, in conjunction with shown in attached drawing 3, due to lower casing
Tapered at the faucal 21A of 20A, structure can also play certain sealing function at this, facilitate battery hermetization into one
Step is promoted.
Since the second annular projection 32A of the ring-like concave edge 22A of lower casing 20A, seal 30A are also in round convex, lower casing 20A is also
It can smoothly be moved relative to seal 30A, so when the pressure of inside battery is increased sharply and expanded, upper casing 10A and lower casing 20A
Between smooth axial relative movement can occur, to play the role of venting cell internal pressure, thus reach preferably it is explosion-proof
Performance.Meanwhile the circular ring shape that multi-turn is formed in conjunction with the second annular projection 32A by the first annular projection 31A is equipped at seal 30A
Structure 301A, lower casing 20A are also correspondingly provided with multiple ring-like concave edge 22A, can carry out to battery repeatedly explosion-proof.Seal 30A
Function similarly to the slowing effect of the lanyard on road first when explosion-proof.In addition, in conjunction with shown in attached drawing 3, the shell of lower casing 20A
Tapered at mouth 21A, upper casing 10A is equipped with the first oblique shoulder 12A, and seal 30A is equipped with the flanging 33A matched with the first oblique shoulder 12A,
After carrying out repeatedly explosion-proof to battery, when upper casing 10A and lower casing 20A move to extreme position in the axial direction, lower casing 20A's
Faucal 21A can block the flanging 33A of seal 30A, so that the first oblique shoulder 12A to upper casing 10A is limited, then prevent upper casing
The case where 10A and lower casing 20A are completely disengaged, plays the explosion-proof of afterbody, in conjunction with above-mentioned cirque structure
The multiple explosion-proof that 301A and ring-like concave edge 22A rise, the multistage that battery can be realized are explosion-proof.
The present embodiment two to the shell of upper casing while shape, lower casing shell while shape and the shape of seal do not do any restrictions,
In conjunction with shown in attached drawing 6 to attached drawing 14, the shell of upper casing while shape, lower casing shell while shape and seal shape can for attached drawing 6 to
Shape shown in attached drawing 14.
Implement three: it is a kind of to have both multi-stage sealed and explosion prevention function battery structure, it include upper casing 10B, lower casing 20B, envelope
30B, upper casing 10B and lower casing 20B snapping are enclosed, seal 30B is set between upper casing 10B and lower casing 20B；
The inner surface of seal 30B is equipped with several first annular projection 31B, and it is cyclic annular convex that the outer surface of seal 30B is equipped with several second
32B is played, upper casing 10B is equipped with several ring-like flange 11B, and the first annular projection 31B and ring-like flange 11B are inconsistent, and second is cyclic annular
The inner wall of raised 32B and lower casing 20B are inconsistent；
In conjunction with shown in attached drawing 4, the first annular projection 31B and the second annular projection 32B are incorporated at seal 30B and form circle circle circle
Ring structure 301B, seal 30B and cylinder piston (piston to piston seal) structure is similar.The material of seal 30B is specially
PP, but it is not limited to PP.During producing battery, seal 30B can be first moulded in the outer surface of upper casing 10B, finally again
The upper casing 10B for being molded with seal 30B is buckled into lower casing 20B；Or seal 30B can be first moulded in the inner surface of lower casing 20B,
Finally upper casing 10B is buckled into the lower casing 20B for being molded with seal 30B again.In addition, seal 30B can also be an individual part,
It is not moulded in upper casing 10B or lower casing 20B, is assembled together with upper casing 10B, lower casing 20B.The ring-like concave edge 22B of lower casing 20B can pass through
Existing hardware processing technology is realized, therefore is no longer excessively described herein.
The annulus formed in conjunction with the second annular projection 32B due to being equipped with multi-turn at seal 30B by the first annular projection 31B
Shape structure 301B, since the material of seal 30B is specially PP, cirque structure 301B has certain elasticity, and first is cyclic annular
Raised 31B and ring-like flange 11B are inconsistent, and the inner wall of the second annular projection 32B and lower casing 20B is inconsistent.Upper casing 10B is buckled into
After lower casing 20B, under the extruding of upper casing 10B and lower casing 20B, cirque structure 301B will appear elastic deformation, with ring-like flange
The first 11B inconsistent annular projection 31B can become slightly flat, and the second inconsistent ring-type is convex with the inner wall of lower casing 20B
It plays 32B to be driven plain substantially, and will receive the extruding of the ring-like flange 11B of upper casing 10B at other wall thickness at seal 30B and go out
Existing local dent, to reach certain sealing performance.Meanwhile multi-turn is equipped at seal 30B by the first annular projection 31B and the
Two annular projection 32B combine the cirque structure 301B formed, upper casing 10B to be correspondingly provided with multiple ring-like flange 11B
Realize the multi-stage sealed of battery.The bottom folding of seal 30B has a circle bottom edge 34B, and the faucal of upper casing 10B tightly suppresses bottom edge 34B, with
Play the sealing function for preventing inside battery electrolyte from leaking.In addition, in conjunction with shown in attached drawing 4, due to the faucal 21B of lower casing 20B
Locate tapered, structure can also play certain sealing function at this, facilitate the further promotion of battery hermetization.
Since the first annular projection 31B of the ring-like flange 11B of upper casing 10B, seal 30B are also in round convex, upper casing 10B is also
It can smoothly be moved relative to seal 30B, so when the pressure of inside battery is increased sharply and expanded, upper casing 10B and lower casing 20B
Between smooth axial relative movement can occur, to play the role of venting cell internal pressure, thus reach preferably it is explosion-proof
Performance.Meanwhile the circular ring shape that multi-turn is formed in conjunction with the second annular projection 32B by the first annular projection 31B is equipped at seal 30B
Structure 301B, upper casing 10B are also correspondingly provided with multiple ring-like flange 11B, can carry out to battery repeatedly explosion-proof.Seal 30B
Function similarly to the slowing effect of the lanyard on road first when explosion-proof.In addition, in conjunction with shown in attached drawing 4, the shell of lower casing 20B
Tapered at mouth 21B, upper casing 10B is equipped with the first oblique shoulder 12B, and seal 30B is equipped with the flanging 33B matched with the first oblique shoulder 12B,
After carrying out repeatedly explosion-proof to battery, when upper casing 10B and lower casing 20B move to extreme position in the axial direction, lower casing 20B's
Faucal 21B can block the flanging 33B of seal 30B, so that the first oblique shoulder 12B to upper casing 10B is limited, then prevent upper casing
The case where 10B and lower casing 20B are completely disengaged, plays the explosion-proof of afterbody, in conjunction with above-mentioned cirque structure
The multiple explosion-proof that 301B and ring-like flange 11B rise, the multistage that battery can be realized are explosion-proof.
The present embodiment three to the shell of upper casing while shape, lower casing shell while shape and the shape of seal do not do any restrictions,
In conjunction with shown in attached drawing 6 to attached drawing 14, the shell of upper casing while shape, lower casing shell while shape and seal shape can for attached drawing 6 to
Shape shown in attached drawing 14.
Implement four: it is a kind of to have both multi-stage sealed and explosion prevention function battery structure, it include upper casing 10C, lower casing 20C, envelope
30C, upper casing 10C and lower casing 20C snapping are enclosed, seal 30C is set between upper casing 10C and lower casing 20C；
The inner surface of seal 30C is equipped with several first annular projection 31C, and the outer surface of seal is equipped with several second annular projections
32C, upper casing 10C are equipped with several ring-like flange 11C, the first annular projection 31C and ring-like flange 11C and staggeredly contradict, and first is cyclic annular
Raised 31C is set to the upside of ring-like flange 11C；Lower casing 20C be equipped with several ring-like concave edge 22C, the second annular projection 32C with it is ring-like
Concave edge 22C is staggeredly contradicted, and the second annular projection 32C is set to the downside of ring-like concave edge 22C；
In conjunction with shown in attached drawing 5, the first annular projection 31C and the second annular projection 32C are incorporated at seal 30C and form circle circle circle
Ring structure 301C, seal 30C and cylinder piston (piston to piston seal) structure is similar.The material of seal 30C is specially
PP, but it is not limited to PP.During producing battery, seal 30C can be first moulded in the outer surface of upper casing 10C, finally again
The upper casing 10C for being molded with seal 30C is buckled into lower casing 20C；Or seal 30C can be first moulded in the inner surface of lower casing 20C,
Finally upper casing 10C is buckled into the lower casing 20C for being molded with seal 30C again.In addition, seal 30C can also be an individual part,
It is not moulded in upper casing 10C or lower casing 20C, is assembled together with upper casing 10C, lower casing 20C.Ring-like flange 11C, the lower casing of upper casing 10C
The ring-like concave edge 22C of 20C can be realized by existing hardware processing technology, therefore no longer excessively be described herein.
The annulus formed in conjunction with the second annular projection 32C due to being equipped with multi-turn at seal 30C by the first annular projection 31C
Shape structure 301C, in conjunction with shown in attached drawing 5, cirque structure 301C is located at the ring-like flange 11C's and lower casing 20C of upper casing 10C
Between ring-like concave edge 22C, the ring-like flange 11C of the first annular projection 31C and upper casing 10C of cirque structure 301C is staggeredly supported
The ring-like concave edge 22C of touching, the second annular projection 32C and lower casing 20C of cirque structure 301C is staggeredly contradicted, the first annular projection
Locality locality phase with second annular projection 32C relative to ring-like concave edge 22C of the 31C relative to ring-like flange 11C
Instead, the first annular projection 31C is located at the upside of cirque structure 301C, and the second annular projection 32C is located at cirque structure 301C
Downside, simultaneously because the material of seal 30C is specially PP, cirque structure 301C has certain elasticity, in conjunction with attached drawing 5
Shown, after upper casing 10C buckles into lower casing 20C, under the extruding of upper casing 10C and lower casing 20C, cirque structure 301C will appear elasticity
Deformation (becomes slightly flat), and will receive at other wall thickness at seal 30C upper casing 10C ring-like flange 11C, under
The extruding of the ring-like concave edge 22C of shell 20C and there is local dent, to reach preferable sealing performance.Meanwhile it being set at seal 30
The cirque structure 301C for having multi-turn to be formed in conjunction with the second annular projection 32C by the first annular projection 31C, upper casing 10C are corresponding
Ground is provided with multiple ring-like flange 11C, and lower casing 20C is also correspondingly provided with multiple ring-like concave edge 22C, the more of battery can be realized
Grade sealing.The bottom folding of seal 30C has a circle bottom edge 34C, and the faucal of upper casing 10C tightly suppresses bottom edge 34C, prevents battery to play
The sealing function of electrolyte inside leakage.In addition, in conjunction with shown in attached drawing 5, due to tapered at the faucal 21C of lower casing 20C, at this
Structure can also play certain sealing function, facilitate the further promotion of battery hermetization.
Since the ring-like flange 11C of the first annular projection 31C and upper casing 10C of cirque structure 301C are staggeredly contradicted, circle
The ring-like concave edge 22C of the second annular projection 32C and lower casing 20C of ring structure 301C are staggeredly contradicted, the first annular projection 31C phase
Locality and the second annular projection 32C for ring-like flange 11C relative to ring-like concave edge 22C locality on the contrary,
One annular projection 31C is located at the upside of cirque structure 301C, and the second annular projection 32C is located under cirque structure 301C
Side.Since the first annular projection 31C of the ring-like flange 11C of upper casing 10C, seal 30C are in round convex, upper casing 10C can be opposite
Seal 30C is smoothly moved, while the ring-like concave edge 22C of lower casing 20C, the second annular projection 32C of seal 30C are also in boss
Shape, lower casing 20C also can smoothly be moved relative to seal 30C, so when the pressure of inside battery is increased sharply and expanded, upper casing
Smooth axial relative movement can occur between 10C and lower casing 20C, to play the role of venting cell internal pressure, to reach
To preferable explosion-proof performance.Meanwhile at seal 30C be equipped with multi-turn by the first annular projection 31C in conjunction with the second annular projection 32C
The cirque structure 301C of formation, upper casing 10C are correspondingly provided with multiple ring-like flange 11C, and lower casing 20C is also correspondingly provided with
Multiple ring-like concave edge 22C can carry out battery repeatedly explosion-proof.Seal 30C is functioned similarly on road first when explosion-proof
The slowing effect of lanyard.
The present embodiment four to the shell of upper casing while shape, lower casing shell while shape and the shape of seal do not do any restrictions,
In conjunction with shown in attached drawing 6 to attached drawing 14, the shell of upper casing while shape, lower casing shell while shape and seal shape can for attached drawing 6 to
Shape shown in attached drawing 14.
Battery structure in each embodiment of the invention, which is not limited in button cell, to be used, and could be applicable to such as circle
Other batteries such as column battery.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
It should be understood that various information are described in the present invention using term " first ", " second " etc., but these information
It should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from the present invention
In the case where range, " first " information can also be referred to as " second " information, and similar, " second " information can also be referred to as
" first " information.
The above is not intended to limit the scope of the present invention, all technical spirits according to the present invention, to above
Embodiment made by any modification, equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (4)
1. a kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, it is characterised in that: it include upper casing, lower casing, seal, it is described
Upper casing and the lower casing snapping, the seal are set between the upper casing and the lower casing；
The inner surface of the seal is equipped with several first annular projections, and it is cyclic annular convex that the outer surface of the seal is equipped with several second
It rises, the upper casing is equipped with several ring-like flanges, and first annular projection and the ring-like flange staggeredly contradict, first ring
Shape protrusion is set to the upside of the ring-like flange；The lower casing be equipped with several ring-like concave edges, second annular projection with it is described
Ring-like concave edge staggeredly contradicts, and second annular projection is set to the downside of the ring-like concave edge；First annular projection is opposite
It is opposite relative to the locality of the ring-like concave edge with second annular projection in the locality of the ring-like flange；
Tapered at the faucal of the lower casing, the upper casing is equipped with the first oblique shoulder, and the centre of the seal is equipped with and described first
The flanging that oblique shoulder matches.
2. a kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, it is characterised in that: it include upper casing, lower casing, seal, it is described
Upper casing and the lower casing snapping, the seal are set between the upper casing and the lower casing；
The inner surface of the seal is equipped with several first annular projections, and it is cyclic annular convex that the outer surface of the seal is equipped with several second
It rises, the lower casing is equipped with several ring-like concave edges, and second annular projection and the ring-like concave edge are inconsistent, and described first is cyclic annular
It is raised inconsistent with the shell wall of the upper casing；
Tapered at the faucal of the lower casing, the upper casing is equipped with the first oblique shoulder, and the centre of the seal is equipped with and described first
The flanging that oblique shoulder matches.
3. a kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, it is characterised in that: it include upper casing, lower casing, seal, it is described
Upper casing and the lower casing snapping, the seal are set between the upper casing and the lower casing；
The inner surface of the seal is equipped with several first annular projections, and it is cyclic annular convex that the outer surface of the seal is equipped with several second
It rises, the upper casing is equipped with several ring-like flanges, and first annular projection and the ring-like flange are inconsistent, and described second is cyclic annular
It is raised inconsistent with the inner wall of the lower casing；
Tapered at the faucal of the lower casing, the upper casing is equipped with the first oblique shoulder, and the centre of the seal is equipped with and described first
The flanging that oblique shoulder matches.
4. a kind of battery sealing structure that multi-stage sealed multistage is explosion-proof, it is characterised in that: it include upper casing, lower casing, seal, it is described
Upper casing and the lower casing snapping, the seal are set between the upper casing and the lower casing, in cone at the faucal of the lower casing
Shape；
The inner surface of the seal is equipped with several first annular projections, and it is cyclic annular convex that the outer surface of the seal is equipped with several second
It rises, the upper casing is equipped with several ring-like flanges, and first annular projection and the ring-like flange staggeredly contradict, first ring
Shape protrusion is set to the upside of the ring-like flange；The lower casing be equipped with several ring-like concave edges, second annular projection with it is described
Ring-like concave edge staggeredly contradicts, and second annular projection is set to the downside of the ring-like concave edge；First annular projection is opposite
It is opposite relative to the locality of the ring-like concave edge with second annular projection in the locality of the ring-like flange.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492627.6A CN110311063A (en) | 2019-06-06 | 2019-06-06 | A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof |
| PCT/CN2020/102929 WO2020244681A1 (en) | 2019-06-06 | 2020-07-20 | Multi-stage sealing multi-stage anti-explosion battery sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492627.6A CN110311063A (en) | 2019-06-06 | 2019-06-06 | A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110311063A true CN110311063A (en) | 2019-10-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910492627.6A Pending CN110311063A (en) | 2019-06-06 | 2019-06-06 | A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110311063A (en) |
| WO (1) | WO2020244681A1 (en) |
Cited By (4)
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|---|---|---|---|---|
| CN111341984A (en) * | 2020-03-06 | 2020-06-26 | 刘亚明 | High-energy-density button lithium ion battery |
| WO2020244681A1 (en) * | 2019-06-06 | 2020-12-10 | 金能电池(东莞)有限公司 | Multi-stage sealing multi-stage anti-explosion battery sealing structure |
| WO2021114328A1 (en) * | 2019-12-13 | 2021-06-17 | 惠州亿纬锂能股份有限公司 | Wound bean-type battery |
| CN114846678A (en) * | 2020-07-01 | 2022-08-02 | 株式会社Lg新能源 | Button type secondary battery and method for manufacturing the same |
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| JPH11283588A (en) * | 1998-03-31 | 1999-10-15 | Sanyo Electric Co Ltd | Sealed battery |
| CN206179910U (en) * | 2016-11-08 | 2017-05-17 | 深圳市沃特玛电池有限公司 | Battery box and sealing member |
| CN109585721A (en) * | 2019-01-17 | 2019-04-05 | 潍坊裕元电子有限公司 | A kind of miniature rechargeable lithium battery structure therein component of button |
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| JP6575346B2 (en) * | 2015-12-22 | 2019-09-18 | トヨタ自動車株式会社 | Nickel metal hydride battery |
| CN107425145B (en) * | 2017-06-20 | 2023-06-20 | 惠州亿纬锂能股份有限公司 | Button type lithium battery core sealing structure and sealing method |
| CN208753411U (en) * | 2018-10-10 | 2019-04-16 | 力源电池科技（深圳）有限公司 | A kind of explosion-proof button cell shell |
| CN110311063A (en) * | 2019-06-06 | 2019-10-08 | 金能电池(东莞)有限公司 | A kind of battery sealing structure that multi-stage sealed multistage is explosion-proof |
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| JPH0945297A (en) * | 1995-07-31 | 1997-02-14 | Matsushita Electric Ind Co Ltd | Button type alkaline battery |
| JPH11283588A (en) * | 1998-03-31 | 1999-10-15 | Sanyo Electric Co Ltd | Sealed battery |
| CN206179910U (en) * | 2016-11-08 | 2017-05-17 | 深圳市沃特玛电池有限公司 | Battery box and sealing member |
| CN109585721A (en) * | 2019-01-17 | 2019-04-05 | 潍坊裕元电子有限公司 | A kind of miniature rechargeable lithium battery structure therein component of button |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020244681A1 (en) * | 2019-06-06 | 2020-12-10 | 金能电池(东莞)有限公司 | Multi-stage sealing multi-stage anti-explosion battery sealing structure |
| WO2021114328A1 (en) * | 2019-12-13 | 2021-06-17 | 惠州亿纬锂能股份有限公司 | Wound bean-type battery |
| CN111341984A (en) * | 2020-03-06 | 2020-06-26 | 刘亚明 | High-energy-density button lithium ion battery |
| CN114846678A (en) * | 2020-07-01 | 2022-08-02 | 株式会社Lg新能源 | Button type secondary battery and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020244681A1 (en) | 2020-12-10 |
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