CN110379953A - A kind of assembling structure and its assembly method of battery cap - Google Patents
A kind of assembling structure and its assembly method of battery cap Download PDFInfo
- Publication number
- CN110379953A CN110379953A CN201910704115.1A CN201910704115A CN110379953A CN 110379953 A CN110379953 A CN 110379953A CN 201910704115 A CN201910704115 A CN 201910704115A CN 110379953 A CN110379953 A CN 110379953A
- Authority
- CN
- China
- Prior art keywords
- pole
- recess portion
- plastic parts
- battery
- battery cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004568 cement Substances 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 230000010485 coping Effects 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 239000002086 nanomaterial Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000005245 sintering Methods 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
- 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
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
- H01M50/183—Sealing members
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention belongs to the technical fields of battery manufacture, more particularly to a kind of assembling structure of battery cap, including coping plate, pole, plastic parts and the lower plastic cement for being fixed on the coping plate bottom, the pole is installed on the coping plate by the plastic parts, sealing ring is arranged between the pole and the lower plastic cement, the coping plate includes lid ontology and the pole mounting hole that the lid ontology is arranged in, the first recess portion for accommodating the plastic parts is formed at the top of the pole mounting hole, pole mounting hole bottom is formed with the second recess portion for accommodating the lower plastic cement and the sealing ring.The present invention can reduce the integral thickness and quality of top cover, help to improve the energy density of battery, meanwhile, the process for eliminating riveting reduces the difficulty of assembly technology, helps to improve production efficiency, moreover it is possible to reduce production cost.In addition, the invention also discloses a kind of assembly methods of battery cap.
Description
Technical field
The invention belongs to the technical fields of battery manufacture, and in particular to a kind of assembling structure of battery cap and its assembly side
Method.
Background technique
With the development of modern society and the enhancing of people's environmental consciousness, more and more equipment select using lithium battery as
Power supply, such as mobile phone, laptop, electric tool and electric car, this is provided extensively for the application of lithium battery with development
Wealthy space.Wherein, lithium battery used in electric tool and electric car etc. is commonly referred to as power battery.Wherein, power
The quality of the structure and manufacturing process of battery electrode column and top cover directly affects the performance of lithium ion battery cell or even entire battery.
Wherein, Chinese patent literature discloses a kind of cover plate of power battery component (publication number: 206076296 U of CN), packet
Include: cover board substrate, safety valve and post sealing structure, the post sealing structure include pole, and the pole passes through glass blocks
It covers and connects with pole, ceramic ring is equipped between the pole set and pole, the safety valve and pole set pass through laser welding
It is connect with cover board substrate, the glass blocks is made of glass sintering technique, and the pole is equipped with groove, and glass blocks is equipped with
Matching convex block.Above-mentioned scheme can be assembled into battery cap to a certain extent, but this scheme at least there is also
Following defect: first, structure is complicated and not easy to disassemble and installation；Second, top cover is thicker, occupies inside battery space, reduces electricity
The energy density in pond；Third, procedure of processing is complicated, leads to cost increase.
Summary of the invention
It is an object of the present invention to: in view of the deficiencies of the prior art, provide a kind of assembling structure of battery cap, energy
The integral thickness and quality for enough reducing top cover, help to improve the energy density of battery, meanwhile, the process for eliminating riveting, drop
The difficulty of low assembly technology, helps to improve production efficiency, moreover it is possible to reduce production cost.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of assembling structure of battery cap, including coping plate, pole, plastic parts and the lower modeling for being fixed on the coping plate bottom
Glue, the pole are installed on the coping plate by the plastic parts, are arranged with sealing between the pole and the lower plastic cement
Circle, the coping plate include lid ontology and the pole mounting hole that the lid ontology is arranged in, and are formed at the top of the pole mounting hole
There is the first recess portion for accommodating the plastic parts, pole mounting hole bottom is formed with for accommodating the lower plastic cement and institute
State the second recess portion of sealing ring.
As a kind of a kind of improvement of the assembling structure of battery cap of the present invention, the pole includes bottom plate and consolidates
Step is provided at the top of the cylinder of the bottom plate, the cylinder, the bottom of the cylinder is provided with convex edge, the step
Formed between the convex edge fluted, the groove is matched with the inner wall of the plastic parts.
As a kind of a kind of improvement of the assembling structure of battery cap of the present invention, the sealing ring is sheathed on described
Convex edge, the lower plastic cement are provided with pole through-hole, are formed with boss at the top of the pole through-hole, the sealing ring and described convex
Platform is placed in second recess portion.
As a kind of a kind of improvement of the assembling structure of battery cap of the present invention, the outer wall of the plastic parts is arranged
There is protrusion, the protrusion is matched with first recess portion, and the bottom of the plastic parts is provided with protrusion, first recess portion
Inner wall extends outward to form limiting section, and the protrusion is matched with the limiting section.
As a kind of a kind of improvement of the assembling structure of battery cap of the present invention, the top surface and bottom of the lid ontology
Face is plane, and the ratio between the depth of first recess portion and the thickness of the lid ontology is 0.1 ~ 0.3, and described second is recessed
Ratio between the depth in portion and the thickness of the lid ontology is 0.3 ~ 0.5.
As a kind of a kind of improvement of the assembling structure of battery cap of the present invention, the pole include positive terminal and
Negative terminal, the positive terminal are an integral molding structure, and the negative terminal is the compound pole formed by friction welding (FW) or welding.
As a kind of a kind of improvement of the assembling structure of battery cap of the present invention, it is set in the institute of the positive terminal
Stating plastic parts is conductive plastic, and the plastic parts for being set in the negative terminal is insulated plastic, the resistance of the conductive plastic
Value is the Ω of 10 Ω ~ 30000；Preferably, the resistance value of the conductive plastic is the Ω of 1001 Ω ~ 30000.
As a kind of a kind of improvement of the assembling structure of battery cap of the present invention, the plastic parts is by PPS material
Material, PSU material or nano material integrated formed structure.
As a kind of a kind of improvement of the assembling structure of battery cap of the present invention, it is additionally provided on the coping plate
At least one of explosion-proof valve air hole and liquid injection hole are correspondingly arranged on explosion-proof valve accepting hole and fluid injection through-hole on the lower plastic cement
At least one of, explosion-proof valve is installed, the explosion-proof valve is saturating between the explosion-proof valve air hole and the explosion-proof valve accepting hole
Protective film is installed at the top of stomata.
The second object of the present invention is to additionally provide a kind of assembly method of battery cap, comprising:
Lower plastic cement is fixed on coping plate bottom, and the lower plastic cement is placed in the second recess portion；
Pole is covered into upper seal, pole mounting hole is then passed through and is installed on the coping plate, and the sealing ring is placed in
Second recess portion；
Plastic parts is encapsulated in the pole, and the plastic parts is placed in the first recess portion.
In assembly method of the invention, plastic parts is fastened on pole in the first recess portion, meanwhile, have benefited from the first recess portion
To the structure of lower recess, plastic parts is equivalent in insert cover ontology, helps to reduce the exposed height of plastic parts, to reduce top
The whole height of lid improves the security performance of battery；The structure that second recess portion is recessed upwards, the second recess portion can not only fasten close
Seal and lower plastic cement, moreover it is possible to lower plastic cement and sealing ring are accommodated to lid ontology, playing reduces lid ontology, lower plastic cement and sealing ring
The effect of whole height；Using the design of the first recess portion and the second recess portion, it ensure that the stability of top cover and each inter-module, save
The process of riveting helps to reduce production cost, improves production efficiency, in addition, this design not only guarantees the function of battery
It is unaffected, moreover it is possible to reduce the space that top cover occupies inside battery, so that inside battery is placed bigger battery core, to improve
The energy density of battery.
The beneficial effects of the present invention are the present invention includes coping plate, pole, plastic parts and is fixed on the coping plate bottom
The lower plastic cement in portion, the pole are installed on the coping plate by the plastic parts, cover between the pole and the lower plastic cement
Equipped with sealing ring, the coping plate includes lid ontology and the pole mounting hole that the lid ontology is arranged in, the pole mounting hole
Top is formed with the first recess portion for accommodating the plastic parts, pole mounting hole bottom be formed with for accommodate it is described under
Second recess portion of plastic cement and the sealing ring.Plastic parts is fastened on pole in the first recess portion, meanwhile, have benefited from the first recess portion
To the structure of lower recess, plastic parts is equivalent in insert cover ontology, helps to reduce the exposed height of plastic parts, to reduce top
The whole height of lid；Second recess portion can not only fit sealing circle and lower plastic cement, moreover it is possible to which lower plastic cement and sealing ring are accommodated to lid
Ontology plays the role of the whole height for reducing lid ontology, lower plastic cement and sealing ring；Using setting for the first recess portion and the second recess portion
Meter, ensure that the stability of top cover and each inter-module, the process for eliminating riveting, helps to reduce production cost, improves production
Efficiency, in addition, this design not only guarantees that the function of battery is unaffected, moreover it is possible to the space that top cover occupies inside battery is reduced,
Inside battery is set to place bigger battery core, to improve the energy density of battery；Sealing ring is fluorubber, can seal pole
Gap between column and pole mounting hole prevents electrolyte by crevice corrosion plastic parts, also functions to insulating polar pole and pole installation
Hole；Lower plastic cement can be improved the insulation performance of coping plate and battery core, moreover it is possible to prevent electrolytic corrosion coping plate from leading to battery short circuit；
Since in battery, in use, the temperature of pole is higher, plastic parts can keep the active force of fastening pole at high temperature, to mention
The stability and security performance of high battery.The present invention can reduce the integral thickness and quality of top cover, help to improve battery
Energy density, meanwhile, the process for eliminating riveting reduces the difficulty of assembly technology, helps to improve production efficiency, moreover it is possible to reduce
Production cost.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is decomposition diagram of the invention.
Fig. 3 is the schematic diagram of the section structure after pole and top cover assembling of the invention.
Fig. 4 is the schematic diagram of the section structure of pole mounting hole of the invention.
Wherein: 1- coping plate；2- pole；3- plastic parts；Plastic cement under 4-；5- sealing ring；11- lid ontology；The installation of 12- pole
Hole；The first recess portion of 121-；The second recess portion of 122-；1211- limiting section；21- bottom plate；22- cylinder；221- step；The convex edge 222-；
223- groove；The protrusion 31-；32- protrusion；41- pole through-hole；411- boss；13- explosion-proof valve air hole；14- liquid injection hole；42-
Explosion-proof valve accepting hole；43- fluid injection through-hole；6- explosion-proof valve；7- protective film.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within an acceptable error range, those skilled in the art can solve technology within a certain error range
Problem basically reaches technical effect.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", level "
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of the description 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.
In invention unless specifically defined or limited otherwise, the arts such as term " installation ", " connected ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
Below in conjunction with attached drawing, invention is further described in detail, but not as a limitation of the invention.
Embodiment 1
As shown in Fig. 1 ~ 4, a kind of assembling structure of battery cap, including coping plate 1, pole 2, plastic parts 3 and it is fixed on top cover
The lower plastic cement 4 of 1 bottom of piece, pole 2 are installed on coping plate 1 by plastic parts 3, are arranged with sealing ring between pole 2 and lower plastic cement 4
5, coping plate 1 includes lid ontology 11 and the pole mounting hole 12 that lid ontology 11 is arranged in, and is formed at the top of pole mounting hole 12 useful
In the first recess portion 121 of accommodating plastic parts 3,12 bottom of pole mounting hole is formed with for accommodating lower plastic cement 4 and sealing ring 5
Two recess portions 122.Plastic parts 3 is fastened on pole 2 in first recess portion 121, meanwhile, have benefited from the first recess portion 121 to lower recess
Structure, plastic parts 3 is equivalent in insert cover ontology 11, helps to reduce the exposed height of plastic parts 3, to reduce top cover
Whole height；Second recess portion 122 can not only fit sealing circle 5 and lower plastic cement 4, moreover it is possible to be accommodated to lower plastic cement 4 and sealing ring 5
Lid ontology 11 plays the role of the whole height for reducing lid ontology 11, lower plastic cement 4 and sealing ring 5；Using 121 He of the first recess portion
The design of second recess portion 122, ensure that the stability of top cover and each inter-module, the process for eliminating riveting, help to reduce life
Cost is produced, production efficiency is improved, in addition, this design not only guarantees that the function of battery is unaffected, moreover it is possible to reduce top cover occupancy
The space of inside battery enables inside battery to place bigger battery core, to improve the energy density of battery；Sealing ring 5 is
Fluorubber can seal gap between pole 2 and pole mounting hole 12, prevent electrolyte by crevice corrosion plastic parts 3, also rise
To insulating polar pole 2 and pole mounting hole 12；Lower plastic cement 4 is PPS material or PSU material, can be improved the exhausted of coping plate 1 and battery core
Edge performance, moreover it is possible to prevent electrolytic corrosion coping plate 1 from leading to battery short circuit；Due in battery in use, the temperature of pole 2 compared with
Height, plastic parts 3 can keep the active force of fastening pole 2 at high temperature, to improve the stability and security performance of battery.
Preferably, pole 2 includes bottom plate 21 and the cylinder 22 for being fixed on bottom plate 21, and the top of cylinder 22 is provided with step
221, the bottom of cylinder 22 is provided with convex edge 222, forms fluted 223 between step 221 and convex edge 222, groove 223 and plastic cement
The inner wall of part 3 matches.Fluted 223 are formed between step 221 and convex edge 222, for fastening the drawing of 3 up and down direction of plastic parts
Power, meanwhile, plastic parts 3 is by playing the role of fastening cylinder 22, realizing the electricity of coping plate 1 and pole 2 in insertion groove 223
Connection or insulation function；Both wherein, convex edge 222 can increase the contact area between bottom plate 21 and cylinder 22, thus improve
Between stability, wherein pole 2 be directly formed through the stamping process, compared to machining processes formation groove 223, no
The conveyance capacity for only improving pole, also avoids generating wire in process, improves the safety of battery.
Preferably, sealing ring 5 is sheathed on convex edge 222, and lower plastic cement 4 is provided with pole through-hole 41, the top of pole through-hole 41
It is formed with boss 411, sealing ring 5 and boss 411 are placed in the second recess portion 122.Second recess portion 122 can not only fit sealing circle
5 and lower plastic cement 4 boss 411, improve the stability of top cover, moreover it is possible to lower plastic cement 4 and sealing ring 5 are accommodated to lid ontology 11, rise
To the effect for the whole height for reducing lid ontology 11, lower plastic cement 4 and sealing ring 5.
Preferably, the outer wall of plastic parts 3 is provided with protrusion 31, and protrusion 31 is matched with the first recess portion 121, plastic parts 3
Bottom is provided with protrusion 32, and 121 inner wall of the first recess portion extends outward to form limiting section 1211, protrusion 32 and limiting section 1211
It matches.Protrusion 31 is matched with the first recess portion 121, so that, protrusion 31 can be accommodated in coping plate 1, help to reduce modeling
The exposed height of glue part 3, to reduce the whole height of top cover；The bottom of plastic parts 3 increases protrusion 32, for it is first recessed
The limiting section 1211 in portion 121 cooperates, and protrusion 32 is fixed on limiting section 1211, prevents plastic parts 3 to be displaced, help to improve
Stability between plastic parts 3 and coping plate 1, to improve the security performance of battery.
Preferably, the top and bottom of Gai Benti 11 are plane, the depth of the first recess portion 121 and the thickness of lid ontology 11
Between ratio be 0.1 ~ 0.3, ratio between the depth of the second recess portion 122 and the thickness of lid ontology 11 is 0.3 ~ 0.5.Gai Ben
The top and bottom of body 11 are plane, the first recess portion 121 and the second recess portion 122 in lid ontology 11,121 He of the first recess portion
Second recess portion 122 is not higher by the top and bottom of lid ontology 11, facilitates the integral thickness for reducing coping plate 1；Limit first
Ratio between the depth of recess portion 121 and the thickness of lid ontology 11 limits the depth of the second recess portion 122 and the thickness of lid ontology 11
Between ratio, prevent the depth of the first recess portion 121 or the second recess portion 122 excessive, the excessive inside for occupying lid ontology 11 is empty
Between, cause the mechanical strength of lid ontology 11 to reduce, influences the service life of top cover, while preventing the first recess portion 121 or the
The depth of two recess portions 122 is too small, can not accommodate plastic parts 3 or sealing ring 5.
Preferably, pole 2 includes positive terminal and negative terminal, and positive terminal is an integral molding structure, and negative terminal is to pass through friction
The compound pole that weldering or welding are formed.When pole 2 is used as cathode, the bottom plate 21 of pole 2 can be metallic aluminium, and cylinder 22 is negative electrode tab
Corresponding metal material can be guaranteed that the quality of battery is unaffected, be reduced the production cost of cathode using compound pole；When
For pole 2 as anode, bottom plate 21 and cylinder 22 can be metallic aluminium, using integrally formed structure, can guarantee the matter of battery
Measure it is unaffected, reduce anode production cost, moreover it is possible to improve the rigidity of pole 2.
Preferably, the plastic parts 3 for being set in positive terminal is conductive plastic, and the plastic parts 3 for being set in negative terminal is insulated plastic
Glue.The plastic parts 3 for being set in positive terminal is conductive plastic, and the plastic parts 3 for being set in negative terminal is insulated plastic, can be in battery
It when high temperature, high pressure occur for inside, is normally overturn by rotating sheet, realizes that positive terminal is connected with negative terminal, that is, form internal protection
Circuit prevents battery explosion；Wherein the resistance value of conductive plastic is the Ω of 10 Ω ~ 30000；Preferably, the resistance value of conductive plastic
For the Ω of 1001 Ω ~ 30000.
Preferably, plastic parts 3 is by PPS material, PSU material or nano material integrated formed structure.PS material, PSU material
Material, nano material all have high temperature resistant, corrosion-resistant, superior mechanical performance and insulation performance, help to improve making for plastic parts 3
With the service life, to improve the quality of battery, and have effects that good environmental-protecting performance and fire prevention, more meets new-energy automobile neck
The environmental requirement in domain can be formed using PPS material, PSU material or nano material and be moulded according to the structure of battery and the needs of cost
Glue part 3, plastic parts 3 are embedded in the groove 223 and the first recess portion 121 that are formed between step 221 and convex edge 222 by encapsulated injection molding
It is interior.
Preferably, at least one of explosion-proof valve air hole 13 and liquid injection hole 14, lower plastic cement 4 are additionally provided on coping plate 1
On be correspondingly arranged at least one of explosion-proof valve accepting hole 42 and fluid injection through-hole 43, explosion-proof valve air hole 13 and explosion-proof valve receiving
Explosion-proof valve 6 is installed between hole 42, protective film 7 is installed at the top of explosion-proof valve air hole 13.Liquid injection hole 14 is convenient for infusing electrolyte
Enter to inside battery, explosion-proof valve 6 can battery due to overcharging, over-discharge, overcurrent and internal short-circuit of battery cause on inner pressure of battery
When rising, makes the automatic quick pressure releasing of battery, battery explosion is avoided to lead to the generation of safety accident, wherein explosion-proof valve air hole 13 is matched
Close explosion-proof valve accepting hole 42, it is ensured that the function of explosion-proof valve 6 can be realized, and liquid injection hole 14 cooperates fluid injection through-hole 43, it is ensured that liquid injection hole
14 function can be realized.
Embodiment 2
As shown in Fig. 1 ~ 4, as shown in Fig. 1 ~ 4, a kind of assembly method of battery cap, comprising:
Lower plastic cement 4 is fixed on 1 bottom of coping plate, and the boss 411 of the lower plastic cement 4 in part is accommodated into the second recess portion 122；
It by 2 sets of upper seals 5 of pole, then passes through pole mounting hole 12 and is installed on coping plate 1, and sealing ring 5 is placed in
Two recess portions 122；
Plastic parts 3 is encapsulated in pole 2, so that the inner wall of plastic parts 3 is fixed on the groove 223 of pole 2, and plastic parts 3 is held
It is placed in the first recess portion 121, so that the protrusion 32 of plastic parts 3 is fixed on the limiting section 1211 of pole mounting hole 12, and plastic parts 3
The protrusion 31 of outer wall be placed in the first recess portion 121.
It should be noted that: in assembly method of the invention, plastic parts 3 makes pole 2 be fastened on the first recess portion 121
It is interior, meanwhile, have benefited from structure of first recess portion 121 to lower recess, plastic parts 3 is equivalent in accommodating lid ontology 11, helps to drop
The exposed height of low plastic parts 3 improves the security performance of battery to reduce the whole height of top cover；Second recess portion 122 is upwards
The structure of recess, the second recess portion 122 can not only fit sealing circle 5 and lower plastic cement 4, moreover it is possible to accommodate lower plastic cement 4 and sealing ring 5
To lid ontology 11, play the role of the whole height for reducing lid ontology 11, lower plastic cement 4 and sealing ring 5；Using the first recess portion 121
With the design of the second recess portion 122, the stability of top cover and each inter-module ensure that, the process for eliminating riveting helps to reduce
Production cost improves production efficiency, in addition, this design not only guarantees that the function of battery is unaffected, moreover it is possible to reduce top cover and account for
With the space of inside battery, inside battery is enable to place bigger battery core, to improve the energy density of battery.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to above-mentioned specific embodiment, all those skilled in the art exist
Made any conspicuous improvement, replacement or modification all belong to the scope of protection of the present invention on the basis of the present invention.This
Outside, although using some specific terms in this specification, these terms are merely for convenience of description, not to the present invention
Constitute any restrictions.
Claims (10)
1. a kind of assembling structure of battery cap, it is characterised in that: including coping plate (1), pole (2), plastic parts (3) and fix
Lower plastic cement (4) in the coping plate (1) bottom, the pole (2) are installed on the coping plate by the plastic parts (3)
(1), it is arranged with sealing ring (5) between the pole (2) and the lower plastic cement (4), the coping plate (1) includes lid ontology (11)
And setting is formed at the top of the pole mounting hole (12) of the lid ontology (11), the pole mounting hole (12) for accommodating
The first recess portion (121) of plastic parts (3) is stated, pole mounting hole (12) bottom is formed with for accommodating the lower plastic cement (4)
With the second recess portion (122) of the sealing ring (5).
2. a kind of assembling structure of battery cap as described in claim 1, it is characterised in that: the pole (2) includes bottom plate
(21) and it is fixed on the cylinders (22) of the bottom plate (21), is provided with step (221), the cylinder at the top of the cylinder (22)
(22) bottom is provided with convex edge (222), and fluted (223), institute are formed between the step (221) and the convex edge (222)
Groove (223) is stated to match with the inner wall of the plastic parts (3).
3. a kind of assembling structure of battery cap as claimed in claim 2, it is characterised in that: the sealing ring (5) is sheathed on
The convex edge (222), the lower plastic cement (4) are provided with pole through-hole (41), are formed at the top of the pole through-hole (41) convex
Platform (411), the sealing ring (5) and the boss (411) are placed in second recess portion (122).
4. a kind of assembling structure of battery cap as described in claim 1, it is characterised in that: the outer wall of the plastic parts (3)
It is provided with protrusion (31), the protrusion (31) matches with first recess portion (121), the bottom setting of the plastic parts (3)
Have protrusion (32), the first recess portion (121) inner wall extends outward to form limiting section (1211), the protrusion (32) and institute
Limiting section (1211) is stated to match.
5. a kind of assembling structure of battery cap as described in claim 1, it is characterised in that: the top surface of the lid ontology (11)
Be plane with bottom surface, the ratio between the depth of first recess portion (121) and the thickness of the lid ontology (11) be 0.1 ~
0.3, the ratio between the depth of second recess portion (122) and the thickness of the lid ontology (11) is 0.3 ~ 0.5.
6. a kind of assembling structure of battery cap as described in claim 1, it is characterised in that: the pole (2) includes anode
Column and negative terminal, the positive terminal are an integral molding structure, and the negative terminal is the composite pole formed by friction welding (FW) or welding
Column.
7. a kind of assembling structure of battery cap as claimed in claim 6, it is characterised in that: be set in the institute of the positive terminal
Stating plastic parts (3) is conductive plastic, and the plastic parts (3) for being set in the negative terminal is insulated plastic, the conductive plastic
Resistance value be the Ω of 10 Ω ~ 30000；Preferably, the resistance value of the conductive plastic is the Ω of 1001 Ω ~ 30000.
8. a kind of assembling structure of battery cap as described in claim 1, it is characterised in that: the plastic parts (3) is by PPS
Material, PSU material or nano material integrated formed structure.
9. a kind of assembling structure of battery cap as described in claim 1, it is characterised in that: also set on the coping plate (1)
It is equipped at least one of explosion-proof valve air hole (13) and liquid injection hole (14), is correspondingly arranged on explosion-proof valve on the lower plastic cement (4)
At least one of accepting hole (42) and fluid injection through-hole (43), the explosion-proof valve air hole (13) and the explosion-proof valve accepting hole
(42) it is equipped between explosion-proof valve (6), protective film (7) is installed at the top of the explosion-proof valve air hole (13).
10. a kind of assembly method of battery cap characterized by comprising
Lower plastic cement (4) is fixed on coping plate (1) bottom, and the lower plastic cement (4) is placed in the second recess portion (122)；
Pole (2) are covered into upper seal (5), pole mounting hole (12) is then passed through and is installed on the coping plate (1), and will be described
Sealing ring (5) is placed in second recess portion (122)；
Plastic parts (3) is encapsulated in the pole (2), and the plastic parts (3) is placed in the first recess portion (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910704115.1A CN110379953A (en) | 2019-07-31 | 2019-07-31 | A kind of assembling structure and its assembly method of battery cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910704115.1A CN110379953A (en) | 2019-07-31 | 2019-07-31 | A kind of assembling structure and its assembly method of battery cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110379953A true CN110379953A (en) | 2019-10-25 |
Family
ID=68257315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910704115.1A Pending CN110379953A (en) | 2019-07-31 | 2019-07-31 | A kind of assembling structure and its assembly method of battery cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110379953A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133879A (en) * | 2020-11-02 | 2020-12-25 | 深圳市嘉姆特科技有限公司 | Battery injection molding terminal with novel structure |
| CN112615093A (en) * | 2020-12-30 | 2021-04-06 | 武汉富航精密工业有限公司 | Injection molding assembly method of secondary battery top cover assembly and top cover assembly |
| CN112820988A (en) * | 2021-01-20 | 2021-05-18 | 东莞塔菲尔新能源科技有限公司 | Power battery top cover structure and power battery |
| CN113270667A (en) * | 2020-11-11 | 2021-08-17 | 厦门海辰新能源科技有限公司 | Top cap subassembly and have its lithium cell |
| CN113823868A (en) * | 2021-10-18 | 2021-12-21 | 厦门海辰新能源科技有限公司 | Top cover assembly of battery and battery |
| CN113889695A (en) * | 2021-08-31 | 2022-01-04 | 蜂巢能源科技有限公司 | Cover plate structure and assembly process thereof |
| CN114284607A (en) * | 2021-12-17 | 2022-04-05 | 厦门海辰新能源科技有限公司 | Top cap subassembly, battery and energy memory |
| CN114824596A (en) * | 2022-04-06 | 2022-07-29 | 星恒电源股份有限公司 | Simple square battery end cover and square battery |
| CN115347289A (en) * | 2021-05-13 | 2022-11-15 | 荣盛盟固利新能源科技有限公司 | Battery cover plate and power battery |
| CN115425346A (en) * | 2022-09-14 | 2022-12-02 | 厦门海辰储能科技股份有限公司 | End cover assembly, single battery, battery module and electric equipment |
| CN115810841A (en) * | 2023-02-09 | 2023-03-17 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN115995594A (en) * | 2022-12-28 | 2023-04-21 | 三一红象电池有限公司 | Battery cell cover plate assembly method, battery cell cover plate and battery |
| WO2023143250A1 (en) * | 2022-01-29 | 2023-08-03 | 华为数字能源技术有限公司 | Battery cover plate, battery, and energy storage device |
| CN116864881A (en) * | 2023-09-05 | 2023-10-10 | 中宏科创新能源科技(浙江)有限公司 | Top cap subassembly, battery and electronic equipment |
| CN117525743A (en) * | 2024-01-08 | 2024-02-06 | 深圳海辰储能科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN117728088A (en) * | 2024-02-08 | 2024-03-19 | 江苏天合储能有限公司 | Top cover assembly, battery cell, battery and assembly method of top cover assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011060880A (en) * | 2009-09-08 | 2011-03-24 | Nok Corp | Sealing plate |
| CN205881971U (en) * | 2016-04-08 | 2017-01-11 | 深圳市瑞德丰精密制造有限公司 | Battery top cap structure |
| CN207052636U (en) * | 2017-06-06 | 2018-02-27 | 池州市骏智机电科技有限公司 | A kind of electrokinetic cell top cover of high leakproofness |
| CN108365138A (en) * | 2018-03-16 | 2018-08-03 | 江苏塔菲尔新能源科技股份有限公司 | A kind of power battery head cover and its assembly method and power battery |
| CN108511639A (en) * | 2018-03-08 | 2018-09-07 | 四川西丹孚能源科技有限公司 | Directly draw the power battery head cover of formula downhand welding structure based on lug |
| CN108695451A (en) * | 2017-04-07 | 2018-10-23 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
-
2019
- 2019-07-31 CN CN201910704115.1A patent/CN110379953A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011060880A (en) * | 2009-09-08 | 2011-03-24 | Nok Corp | Sealing plate |
| CN205881971U (en) * | 2016-04-08 | 2017-01-11 | 深圳市瑞德丰精密制造有限公司 | Battery top cap structure |
| CN108695451A (en) * | 2017-04-07 | 2018-10-23 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN207052636U (en) * | 2017-06-06 | 2018-02-27 | 池州市骏智机电科技有限公司 | A kind of electrokinetic cell top cover of high leakproofness |
| CN108511639A (en) * | 2018-03-08 | 2018-09-07 | 四川西丹孚能源科技有限公司 | Directly draw the power battery head cover of formula downhand welding structure based on lug |
| CN108365138A (en) * | 2018-03-16 | 2018-08-03 | 江苏塔菲尔新能源科技股份有限公司 | A kind of power battery head cover and its assembly method and power battery |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133879A (en) * | 2020-11-02 | 2020-12-25 | 深圳市嘉姆特科技有限公司 | Battery injection molding terminal with novel structure |
| CN113270667A (en) * | 2020-11-11 | 2021-08-17 | 厦门海辰新能源科技有限公司 | Top cap subassembly and have its lithium cell |
| CN113270667B (en) * | 2020-11-11 | 2022-12-30 | 厦门海辰储能科技股份有限公司 | Top cap subassembly and have its lithium cell |
| CN112615093A (en) * | 2020-12-30 | 2021-04-06 | 武汉富航精密工业有限公司 | Injection molding assembly method of secondary battery top cover assembly and top cover assembly |
| CN112615093B (en) * | 2020-12-30 | 2023-08-04 | 武汉富航精密工业有限公司 | Injection molding assembly method of secondary battery top cover assembly and top cover assembly |
| CN112820988A (en) * | 2021-01-20 | 2021-05-18 | 东莞塔菲尔新能源科技有限公司 | Power battery top cover structure and power battery |
| WO2022156090A1 (en) * | 2021-01-20 | 2022-07-28 | 江苏正力新能电池技术有限公司 | Power battery top cover structure and power battery |
| CN115347289A (en) * | 2021-05-13 | 2022-11-15 | 荣盛盟固利新能源科技有限公司 | Battery cover plate and power battery |
| CN113889695A (en) * | 2021-08-31 | 2022-01-04 | 蜂巢能源科技有限公司 | Cover plate structure and assembly process thereof |
| CN113823868A (en) * | 2021-10-18 | 2021-12-21 | 厦门海辰新能源科技有限公司 | Top cover assembly of battery and battery |
| CN114284607A (en) * | 2021-12-17 | 2022-04-05 | 厦门海辰新能源科技有限公司 | Top cap subassembly, battery and energy memory |
| WO2023143250A1 (en) * | 2022-01-29 | 2023-08-03 | 华为数字能源技术有限公司 | Battery cover plate, battery, and energy storage device |
| CN114824596A (en) * | 2022-04-06 | 2022-07-29 | 星恒电源股份有限公司 | Simple square battery end cover and square battery |
| CN115425346A (en) * | 2022-09-14 | 2022-12-02 | 厦门海辰储能科技股份有限公司 | End cover assembly, single battery, battery module and electric equipment |
| CN115425346B (en) * | 2022-09-14 | 2023-09-15 | 厦门海辰储能科技股份有限公司 | End cover assembly, battery cell, battery module and electric equipment |
| CN115995594B (en) * | 2022-12-28 | 2024-03-12 | 三一红象电池有限公司 | Battery cell cover plate assembly method, battery cell cover plate and battery |
| CN115995594A (en) * | 2022-12-28 | 2023-04-21 | 三一红象电池有限公司 | Battery cell cover plate assembly method, battery cell cover plate and battery |
| CN115810841A (en) * | 2023-02-09 | 2023-03-17 | 深圳海润新能源科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116864881B (en) * | 2023-09-05 | 2023-12-29 | 中宏科创新能源科技(浙江)有限公司 | Top cap subassembly, battery and electronic equipment |
| CN116864881A (en) * | 2023-09-05 | 2023-10-10 | 中宏科创新能源科技(浙江)有限公司 | Top cap subassembly, battery and electronic equipment |
| CN117525743A (en) * | 2024-01-08 | 2024-02-06 | 深圳海辰储能科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN117525743B (en) * | 2024-01-08 | 2024-03-12 | 深圳海辰储能科技有限公司 | End cover assembly, energy storage device and electric equipment |
| CN117728088A (en) * | 2024-02-08 | 2024-03-19 | 江苏天合储能有限公司 | Top cover assembly, battery cell, battery and assembly method of top cover assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110379953A (en) | A kind of assembling structure and its assembly method of battery cap | |
| WO2022156090A1 (en) | Power battery top cover structure and power battery | |
| KR101084056B1 (en) | Rechargeable battery | |
| CN110429212A (en) | A kind of battery cap assembling structure and assembly method | |
| CN210272439U (en) | Assembly structure of battery top cover | |
| US7592096B2 (en) | Lithium ion secondary battery | |
| CN215834605U (en) | Secondary cell's top cap subassembly and power battery | |
| US20230006290A1 (en) | Battery top cover structure and assembly method thereof | |
| CN211265533U (en) | Battery top cap assembly structure | |
| CN209592146U (en) | Battery modules | |
| CN214411343U (en) | Battery top cap structure and battery | |
| CN110957438A (en) | Battery top cover assembly structure and assembly method | |
| CN109301105A (en) | A kind of assembling structure and its assembly method of power battery top cover | |
| KR20140066574A (en) | Rechargeable battery | |
| CN204102963U (en) | Top cover structure of power battery | |
| CN217405566U (en) | Secondary battery's top cap and secondary battery | |
| KR101621094B1 (en) | Secondary Battery | |
| KR20140124999A (en) | Rechargeable battery | |
| CN209401666U (en) | A kind of assembling structure of power battery top cover | |
| KR20150105848A (en) | Rechargeable battery | |
| CN113644354A (en) | Battery top cap structure, battery and electric device | |
| CN215418510U (en) | Integrated pole of secondary battery | |
| CN218648039U (en) | Cover plate assembly, secondary battery and electronic device | |
| CN107968218B (en) | Combined type cap integrated cladding battery | |
| CN216054918U (en) | Battery cover plate assembly and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220117 Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Applicant after: Jiangsu Zhengli new energy battery technology Co.,Ltd. Address before: 211100 Lantian Road 249, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Applicant before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right |