CN110335971A - The no-welding battery structure of tab - Google Patents
The no-welding battery structure of tab Download PDFInfo
- Publication number
- CN110335971A CN110335971A CN201910403321.9A CN201910403321A CN110335971A CN 110335971 A CN110335971 A CN 110335971A CN 201910403321 A CN201910403321 A CN 201910403321A CN 110335971 A CN110335971 A CN 110335971A
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- Prior art keywords
- battery
- tab
- elastic portion
- clamping elastic
- newel
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- 238000003466 welding Methods 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 238000005452 bending Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000519996 Teucrium chamaedrys Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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
-
- 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
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The no-welding battery structure of tab of the invention passes through setting package assembling, battery roll core and newel.In actual application process, battery roll core is put into battery compartment, when battery cover is placed in sealing rubber ring, sealing rubber ring can mutually be pushed up with the inner wall of battery case and be held, and then battery cover is fixed on battery case；Furthermore, clamping elastic portion is provided on battery case and/or battery cover, when clamping elastic portion and tab top are held, it holds for pushing up tab to the end position of newel, and then it is held in tab between clamping elastic portion and the end of newel, i.e. tab does not need to can be completed and connect with battery cover and battery case welding, when the internal pressure of battery compartment is excessive, internal pressure can allow clamping elastic portion to generate deformation, under the action of interior pressure, tab is no longer held between clamping elastic portion and the end of newel, realize open circuit protection, battery roll core also externally conveys voltage when preventing internal pressure excessive, cause corresponding safety accident.
Description
Technical field
The present invention relates to battery structure technical fields, more particularly to a kind of battery structure that tab is no-welding.
Background technique
Currently, battery, which refers to, fills electrolyte solution and metal electrode to generate the cup of electric current, slot or other containers or compound
Chemical energy can be converted to the device of electric energy by the segment space of container.Point with anode, cathode.With the development of science and technology electric
Pond refers to the midget plant that can be produced electricl energy, such as solar battery.The performance parameter of battery mainly has electromotive force, capacity, than energy
Amount and resistance.Utilize the battery as energy source, available have a burning voltage, stabling current, long-time stable power supply, by
The external world influences the electric current of very little, and battery structure is simple, and easy to carry, charge and discharge are easy to operation, not by outside climatic
Stable and reliable for performance with the influence of temperature, the various aspects performance in modern society's life has great role.
Existing battery structure, battery structure include battery cover, battery case and battery roll core, and battery cover is covered on battery case
On, and battery cover and battery case surround battery compartment jointly, battery roll core is set in battery compartment, and the battery roll core
Tab is welded with battery cover and battery case respectively.Welding to tab be in order to ensure tab can steadily with battery cover and electricity
The connection of pond shell, guarantee battery roll core stablizes output.But the mode of soldering polar ear have the defects that it is certain, first, soldering polar ear
Mode can improve battery structure manufacture difficulty, need the very high equipment of operation precision that can weld tab, this
It undoubtedly will increase the operation cost of enterprise；Second, the mode of soldering polar ear is when the internal pressure of battery compartment is excessive, the tab of welding
It can not be detached from battery cover and battery case, i.e., battery roll core is also in externally conveying voltage when battery structure presses through big inside, and there are phases
The explosion or battery electrolyte eruption that will lead to battery structure when big security risk, when serious, seriously jeopardize the life of user
Life safety.
Summary of the invention
The purpose of the present invention is overcoming shortcoming in the prior art, it is no-welding to provide a kind of tab, when in battery
When pressing through big, what tab can be separated with battery cover and/or battery case in time, and then the tab for completing open circuit protection is no-welding
Battery structure.
The purpose of the present invention is achieved through the following technical solutions:
A kind of battery structure that tab is no-welding, comprising:
Package assembling, the package assembling include battery cover, sealing rubber ring and battery case, and the battery cover is placed in described
In sealing rubber ring, so that the inner wall of the sealing rubber ring and the battery case is mutually pushed up and held, the battery case and the battery cover are total
It is same to surround battery compartment, and clamping elastic portion is provided on the battery case and/or the battery cover；
Battery roll core, the battery roll core are set in the battery compartment, are offered in the battery roll core and are kept away a hole,
And tab is provided on the battery roll core；And
Newel, the newel are kept away in a hole positioned at described, when the clamping elastic portion and the tab top are held, are used for
It pushes up the tab to hold to the end position of the newel, and then the tab is made to be held in the clamping elastic portion
Between the end of the newel.
In a wherein embodiment, the clamping elastic portion is located on the battery cover, the clamping elastic portion with
When the tab top is held, hold for pushing up tab to the end position of newel, and then the tab is made to be held in institute
It states between clamping elastic portion and the end of the newel.
In a wherein embodiment, the clamping elastic portion specifically includes clamping elastic portion and lower clamping elasticity
Portion, the upper clamping elastic portion are located on the battery cover, and the lower clamping elastic portion is located on the battery case, the tab
Tab and lower tab are specifically included, the newel includes preceding newel post, middle newel post and the rear newel post being linked in sequence；
Wherein, it when the upper clamping elastic portion and the upper tab top are held, holds for pushing up the upper tab to described
Preceding newel post, and then it is held in the upper tab between the upper clamping elastic portion and the preceding newel post；
When the lower clamping elastic portion and the lower tab top are held, hold for pushing up lower tab to rear newel post, Jin Ersuo
Lower tab is stated to be held between the lower clamping elastic portion and the rear newel post.
In a wherein embodiment, the upper clamping elastic portion is towards the direction of the battery compartment to lower recess.
In a wherein embodiment, the direction of lower clamping elastic portion towards the battery compartment is protruding upward.
In a wherein embodiment, insulating part is provided between the preceding newel post and the upper tab.
In a wherein embodiment, lower insulating part is provided between newel post and the lower tab after described.
In a wherein embodiment, a hole of keeping away is located at the medium position of the battery roll core.
In a wherein embodiment, the battery case includes the encapsulating housing and bending edge sealing being linked in sequence, described
Encapsulating housing and the battery cover surround battery compartment jointly, and the battery cover is placed in the sealing rubber ring, so that described
Inner wall of the sealing rubber ring respectively with the inner wall of encapsulating housing and the bending edge sealing offsets.
In a wherein embodiment, the encapsulating housing and the bending edge sealing are an integral molding structure.
The present invention compared with the prior art the advantages of and have the beneficial effect that:
The no-welding battery structure of tab of the invention passes through setting package assembling, battery roll core and newel.In reality
Application process in, battery roll core is put into battery compartment, when battery cover is placed in sealing rubber ring, sealing rubber ring meeting
It mutually pushes up and holds with the inner wall of battery case, and then battery cover is fixed on battery case；In addition, being arranged on battery case and/or battery cover
There is clamping elastic portion to hold for pushing up tab to the end position of newel, in turn when clamping elastic portion and tab top are held
It is held in tab between clamping elastic portion and the end of newel, i.e., tab does not need to weld i.e. with battery cover and battery case
Achievable connection, when the internal pressure of battery compartment is excessive, internal pressure can allow clamping elastic portion to generate deformation, in the effect of interior pressure
Under, tab is no longer held between clamping elastic portion and the end of newel, that is, is realized open circuit protection, prevented internal pressure excessive
When battery roll core also externally convey voltage, cause corresponding safety accident.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the no-welding battery structure of the tab in one embodiment of the present invention；
Fig. 2 is the schematic diagram of internal structure of the no-welding battery structure of the tab in one embodiment of the present invention；
Fig. 3 is enlarged diagram of the Fig. 2 at A；
Fig. 4 is enlarged diagram of the Fig. 2 at B.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
Also referring to Fig. 1 and Fig. 2, a kind of battery structure that tab is no-welding 10 includes package assembling 100, battery roll core
200 and newel 300.
It is thus desirable to explanation, package assembling 100 plays the role of encapsulation and protection battery roll core 200；Battery roll core
200 play the role of providing voltage to external electrical equipment；Newel 300 plays the tab of battery roll core 200 and prevents battery
Battery roll core 200 is protected in the effect that core 200 excessively expands.
Referring to Fig. 2, package assembling 100 includes battery cover 110, sealing rubber ring 120 and battery case 130, battery cover
110 are placed in sealing rubber ring 120, so that the inner wall of sealing rubber ring 120 and battery case 130 is mutually pushed up and is held, battery case 130 and battery
Lid 110 surrounds battery compartment jointly, and clamping elastic portion 140 is provided on battery case 130 and/or battery cover 110.
It is thus desirable to which explanation, battery cover 110 and battery case 130 play the work of packaging protection battery roll core 200
With, while battery cover 110 and battery case 130 surround battery compartment jointly, battery compartment is used for placing battery core 200；Sealing
Cushion rubber 130 plays the role of sealing waterproof, places extraneous water droplet and enters in battery compartment, causes the short of battery roll core 200
Road；Clamping elastic portion 140 completes the tab and battery cover 110 and electricity of battery roll core 200 for being used cooperatively with newel 300
The no-welding connection of pond shell 130.
Referring to Fig. 2, battery roll core 200 is set in battery compartment, is offered in battery roll core 200 and is kept away a hole
210, and tab 220 is provided on battery roll core 200.
It is thus desirable to explanation, battery roll core 200 plays the role of providing voltage to external electrical equipment；Keep away a hole
210 open up, and the structure for the battery structure 10 that tab can be made no-welding is more compact.
Referring to Fig. 2, newel 300, which is located at, to be kept away in a hole 210, when clamping elastic portion 140 and the top of tab 220 are held,
For holding tab 220 to the end position of newel 300 by top, and then tab 220 is made to be held in clamping elastic portion 140
Between the end of newel 300.
It is thus desirable to illustrate, it is provided with clamping elastic portion 140 on battery case 130 and/or battery cover 110, clamps bullet
Property the portion 140 and top of tab 220 when holding, for holding tab 220 to the end position of newel 300 by top, and then make tab
220 are held between clamping elastic portion 140 and the end of newel 300, i.e., tab 220 does not need and battery cover 110 and electricity
Connection can be completed in the welding of pond shell 130, and when the internal pressure of battery compartment is excessive, internal pressure can allow clamping elastic portion 140 to generate deformation,
Under the action of interior pressure, tab 220 is no longer held between clamping elastic portion 140 and the end of newel 300, that is, is realized
Open circuit protection, battery roll core also externally conveys voltage when preventing internal pressure excessive, cause corresponding safety accident.
It should also be noted that, working as battery compartment since tab 220 does not need to weld with battery cover 110 and battery case 130
Internal pressure it is excessive when, under the action of interior pressure, battery cover 110 can at least partly be detached from sealing rubber ring 120, i.e., in battery
There are certain gaps or battery cover 110 to completely disengage when the internal pressure of chamber is excessive, between battery cover 110 and sealing rubber ring 120
Sealing rubber ring 120, the no-welding battery structure 10 of tab complete autonomous pressure discharge operations, compared to traditional need that explosion rupture disk is arranged
Complete the battery structure of pressure discharge operations, no-welding 10 manufacturing cost of battery structure of the tab of the application is relatively low, simultaneously
Structure is more compact, and explosion rupture disk that no setting is required can have the function of autonomous pressure release.
It should also be noted that, newel 300, when assembling battery cover 110, newel 300 can also prevent battery cover
110 over-travels squeeze battery roll core 200, i.e., when the end position of tab 220 to newel 300 is held on clamping elastic portion 140 top
Place, when being held in tab 220 between clamping elastic portion 140 and the end of newel 300, under the action of newel 300,
Battery cover 110 can not continue to push displacement, and newel 300 effectively prevents battery cover 110 because lower pressure is excessive and excessive
Battery roll core 200 is squeezed, battery roll core 200 is caused, battery roll core 200 is played a certain protective role；Meanwhile because battery
It is offered in core 200 and keeps away a hole 210, due to keeping away opening up for a hole 210, so that the stress of battery roll core 200 can be uneven, when
When battery roll core 200 expands phenomenon because of unexpected factors, it can be very good to prevent positioned at the newel 300 kept away in a hole 210
Battery roll core 200 is excessively expanding, so as to cause the damage of battery roll core 200.
Further, referring to Fig. 2, in one embodiment, clamping elastic portion 140 is located on battery cover 110, presss from both sides
It holds elastic portion 140 and tab 220 pushes up when holding, for holding tab 220 to the end position of newel 300 by top, and then make
Tab 220 is held between clamping elastic portion 140 and the end of newel 300.
It is thus desirable to which explanation is, it is contemplated that clamping elasticity can be only arranged in the difficulty of manufacturing process on battery cover 110
Portion 140, clamping elastic portion 140 working principle be not repeated to illustrate, please refer to above-mentioned clamping elastic portion 140 work original
Reason.It is emphasized that clamping elastic portion 140 is that have certain deformability, when clamping elastic portion is held on the top of battery cover 110
140 at the end position of newel 300 when, according to the interaction principle of power, newel 300 equally can also pass through tab
Clamping elastic portion 140 is held on 220 upward tops, and certain deformation inevitably occurs for clamping elastic portion 140, when clamping elastic portion
140 upwards when deformation occurs, and a certain amount of increase can occur for the diameter of battery cover 110, so that battery cover 110 and battery case 130
Between interaction force it is stronger, i.e., battery cover 110 can be more stably mounted on battery case 130, optimization battery cover 110 with
Interaction force between battery case 130, and then further promote the sealing performance of the no-welding battery structure 10 of tab.
Further, referring to Figure 2 together, Fig. 3 and Fig. 4, in one embodiment, clamping elastic portion 140 specifically includes
Upper clamping elastic portion 141 and lower clamping elastic portion 142, upper clamping elastic portion 141 are located on battery cover 110, lower clamping elastic portion
142 are located on battery case 130, and tab 220 specifically includes tab 221 and lower tab 222, and newel 300 includes being linked in sequence
Preceding newel post 310, middle newel post 320 and rear newel post 330；
Wherein, when upper clamping elastic portion 141 is held with upper tab 221 top, for holding upper tab 221 to preceding newel post by top
310, and then it is held in tab 221 between clamping elastic portion 141 and preceding newel post 310；
When lower clamping elastic portion 142 is held with lower tab 222 top, for holding lower tab 222 to rear newel post 330 by top, into
And lower tab 222 is held between lower clamping elastic portion 142 and rear newel post 330.
It is thus desirable to explanation, in order to allow the tab 220 of battery roll core 200 is more preferable and more stable to be clamped,
In one embodiment, battery cover 110 and battery case 130 are provided with clamping elastic portion 140, and clamping elastic portion 140 is specifically wrapped
It includes clamping elastic portion 141 and lower clamping elastic portion 142, upper clamping elastic portion 141 is located on battery cover 110, lower clamping elasticity
Portion 142 is located on battery case 130, and the concrete operating principle of upper clamping elastic portion 141 and lower clamping elastic portion 142 is not repeated to explain
It states, please refers to above-mentioned 140 working principle of clamping elastic portion.The setting of upper clamping elastic portion 141 is for battery roll core 200
Upper tab 220 is held between clamping elastic portion 141 and preceding newel post 310, and the setting of lower clamping elastic portion 142 is for electricity
The lower tab of pond core 200 is held between lower clamping elastic portion 142 and rear newel post 330, allows the tab of battery roll core 200
220 do not need to weld with battery cover 110 and 130 phase of battery case respectively, substantially increase the no-welding battery structure 10 of tab
Safety, when battery compartment internal pressure is excessive, upper clamping elastic portion 141 and lower clamping elastic portion 142 can be in the works of interior pressure
Certain deformation occurs with lower, makes tab 221 and lower tab 222 no longer clamped, realizes open circuit protection, prevent in battery
It is intracavitary press through it is big in the case where, battery roll core 200 is also powered external electrical equipment, causes corresponding safety accident.
It should also be noted that, clamping elastic portion 140, in addition to being only arranged on battery cover 110, clamping elastic portion 140 is also
Can only it be arranged on battery case 130, tube grip elastic portion 140 is not arranged on battery cover 110 on still battery case 130,
The function and effect that clamping elastic portion 140 plays are all the same, and the tab 220 for being provided to battery roll core 200 can be held in
Clamp between elastic portion 140 and the end of newel 300, realize it is no-welding, when the internal pressure of battery compartment is excessive, can including
Under the action of pressure, clamping elastic portion 140 no longer clamps the tab 220 of battery roll core 200, that is, realizes and press through big feelings inside
Open circuit protection under condition.
Further, referring to Fig. 3, in one embodiment, upper clamping side of the elastic portion 141 towards battery compartment
To lower recess.
It is thus desirable to explanation, upper clamping elastic portion 141 is towards the direction of battery compartment to lower recess, this design
Purpose be, can be when pushing battery cover 110, with the pushing of battery cover 110, court when assembling battery cover 110
The upper clamping elastic portion 141 being arranged to battery compartment to lower recess can be in contact with the tab of battery roll core 200, and then clamp
The tab 220 of battery roll core 200.Certainly, the direction of upper clamping elastic portion 141 can flexibly be set in conjunction with practical situation, example
Such as, the direction of upper clamping elastic portion 141 towards battery compartment raises upward, and difference is, in assembly, upper clamping elastic portion
141 towards the direction of battery compartment when raising upward, and needs the upper clamping elastic portion 141 to raise upward using external force toward battery
The direction of inner cavity presses, and allows clamping elastic portion 141 that the tab 220 that contact battery roll core 200 is removed in certain deformation occurs.
Further, referring to Fig. 4, in one embodiment, lower clamping side of the elastic portion 142 towards battery compartment
To protruding upward.
It is thus desirable to explanation, the direction of lower clamping elastic portion 142 towards battery compartment is protruding upward, this design
Purpose be, can be when pushing battery cover 110 when assembling battery cover 110, tab 221 is held in top by preceding newel post 310
When, rear newel post 330, which can also push up, holds lower tab 222, meanwhile, top is held when lower clamping elastic portion 142 can also push battery cover 110
Lower tab 222 allows lower tab 222 to be held between lower clamping elastic portion 142 and rear newel post 330.Certainly, lower clamping elastic portion
142 direction can flexibly be set according to practical situation, for example, lower clamping elastic portion 142 towards the direction of battery compartment to
Lower recess, difference be, in assembly, when lower clamping elastic portion 142 is towards the direction of battery compartment to lower recess, needs to utilize
External force presses the direction to the lower clamping elastic portion 142 of lower recess toward battery compartment, and lower clamping elastic portion 142 is allowed to occur centainly
Deformation go to contact lower tab 222.
Further, in one embodiment, insulating part is provided between preceding newel post 310 and upper tab 221.
It is thus desirable to which explanation, upper insulating part play the role of being dielectrically separated from, it is contemplated that the integrated machine of preceding newel post 310
Newel post 310 before tool intensity, preferably metal material make, but just need to be provided between preceding newel post 310 and upper tab 221
Insulating part prevents tab 221 to be directly shorted together with lower tab 222.
Further, in one embodiment, lower insulating part is provided between rear newel post 330 and lower tab 222.
It is thus desirable to which explanation, lower insulating part play the role of being dielectrically separated from, it is contemplated that the integrated machine of rear newel post 330
Newel post 330 after the production of tool intensity, preferably metal material, but just need to be provided with down between rear newel post 330 and lower tab 222
Insulating part prevents tab 221 to be directly shorted together with lower tab 222.
Further, referring to Fig. 2, in one embodiment, the middle part that a hole 210 is located at battery roll core 200 is kept away
At position.
It is thus desirable to which explanation, keeps away a hole 210 and be located at the medium position of battery roll core 200, a hole is kept away so that being located at
210 newel 300 and the uniform force of battery roll core 200, the service life of elongation center's column 300 and battery roll core 200.
Further, referring to Fig. 2, in one embodiment, battery case 130 includes the encapsulating housing being linked in sequence
131 and bending edge sealing 132, encapsulating housing 131 and battery cover 110 surround battery compartment jointly, and battery cover 110 is placed in sealant
In circle 120, so that inner wall of the sealing rubber ring 120 respectively with the inner wall of encapsulating housing 131 and bending edge sealing 132 offsets.
It is thus desirable to explanation, encapsulating housing 131 plays the role of protection, protects battery roll core 200；Bending edge sealing
132 play the role of limiting battery cover 110, and bending edge sealing 132 can optimize mutual between battery cover 110 and battery case 130
Active force, meanwhile, the setting of bending edge sealing 132 can simplify the assembly technology of the no-welding battery structure 10 of tab, and user is only
Assembly manipulation need to be can be completed in pressing battery cover 110, compared to traditional crimping battery structure, the assembly process of the application is opposite
Simply, assembly efficiency is substantially increased.
It should also be noted that, clamping elastic portion 140 is located at encapsulation when battery case 130 is provided with clamping elastic portion 140
On shell 131.
Further, referring to Fig. 2, in one embodiment, encapsulating housing 131 and bending edge sealing 132 are integrated
Molding structure.
It is thus desirable to explanation, the design that encapsulating housing 131 and bending edge sealing 132 are an integral molding structure, Ke Yiti
The overall mechanical strength of high battery case 130 extends the service life of battery case 130, to preferably protect battery roll core 200.
The no-welding battery structure of tab of the invention passes through setting package assembling, battery roll core and newel.In reality
Application process in, battery roll core is put into battery compartment, when battery cover is placed in sealing rubber ring, sealing rubber ring meeting
It mutually pushes up and holds with the inner wall of battery case, and then battery cover is fixed on battery case；In addition, being arranged on battery case and/or battery cover
There is clamping elastic portion to hold for pushing up tab to the end position of newel, in turn when clamping elastic portion and tab top are held
It is held in tab between clamping elastic portion and the end of newel, i.e., tab does not need to weld i.e. with battery cover and battery case
Achievable connection, when the internal pressure of battery compartment is excessive, internal pressure can allow clamping elastic portion to generate deformation, in the effect of interior pressure
Under, tab is no longer held between clamping elastic portion and the end of newel, that is, is realized open circuit protection, prevented internal pressure excessive
When battery roll core also externally convey voltage, cause corresponding safety accident.
Only several embodiments of the present invention are expressed for embodiment described above, and the description thereof is more specific and detailed, but
It cannot be construed as a limitation to the scope of the present invention.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of battery structure that tab is no-welding characterized by comprising
Package assembling, the package assembling include battery cover, sealing rubber ring and battery case, and the battery cover is placed in the sealing
In cushion rubber, so that the inner wall of the sealing rubber ring and the battery case is mutually pushed up and held, the battery case and the battery cover enclose jointly
Clamping elastic portion is provided at battery compartment, and on the battery case and/or the battery cover；
Battery roll core, the battery roll core are set in the battery compartment, are offered in the battery roll core and are kept away a hole, and institute
It states and is provided with tab on battery roll core；And
Newel, the newel is kept away in a hole positioned at described, when the clamping elastic portion and the tab top are held, for making
It states tab and is pushed up and held to the end position of the newel, and then the tab is made to be held in the clamping elastic portion and institute
It states between the end of newel.
2. the no-welding battery structure of tab according to claim 1, which is characterized in that the clamping elastic portion is located at institute
It states on battery cover, when the clamping elastic portion and the tab top are held, for making tab be pushed up the end position held to newel
Place, and then it is held in the tab between clamping elastic portion and the end of the newel.
3. the no-welding battery structure of tab according to claim 1, which is characterized in that the clamping elastic portion is specifically wrapped
It includes clamping elastic portion and lower clamping elastic portion, the upper clamping elastic portion is located on the battery cover, the lower clamping elasticity
Portion is located on the battery case, and the tab specifically includes tab and lower tab, and the newel includes before being linked in sequence
Newel post, middle newel post and rear newel post；
Wherein, it when the upper clamping elastic portion and the upper tab top are held, holds for pushing up the upper tab to the front end
Column, and then it is held in the upper tab between the upper clamping elastic portion and the preceding newel post；
When the lower clamping elastic portion and the lower tab top are held, hold for pushing up lower tab to rear newel post, so it is described under
Tab is held between the lower clamping elastic portion and the rear newel post.
4. the no-welding battery structure of tab according to claim 3, which is characterized in that the upper clamping elastic portion direction
The direction of the battery compartment is to lower recess.
5. the no-welding battery structure of tab according to claim 3, which is characterized in that the lower clamping elastic portion direction
The direction of the battery compartment is protruding upward.
6. the no-welding battery structure of tab according to claim 3, which is characterized in that the preceding newel post and the upper pole
Insulating part is provided between ear.
7. the no-welding battery structure of tab according to claim 3, which is characterized in that newel post and the lower pole after described
Lower insulating part is provided between ear.
8. the no-welding battery structure of tab according to claim 1, which is characterized in that a hole of keeping away is located at the electricity
At the medium position of pond core.
9. the no-welding battery structure of tab according to claim 1, which is characterized in that the battery case includes that sequence connects
The encapsulating housing and bending edge sealing connect, the encapsulating housing and the battery cover surround battery compartment, the battery cover card jointly
It is placed in the sealing rubber ring, so that the sealing rubber ring inner wall phase with the inner wall of encapsulating housing and the bending edge sealing respectively
It supports.
10. the no-welding battery structure of tab according to claim 1, which is characterized in that the encapsulating housing and described
Bending edge sealing is an integral molding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910403321.9A CN110335971A (en) | 2019-05-15 | 2019-05-15 | The no-welding battery structure of tab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910403321.9A CN110335971A (en) | 2019-05-15 | 2019-05-15 | The no-welding battery structure of tab |
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| CN110335971A true CN110335971A (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910403321.9A Pending CN110335971A (en) | 2019-05-15 | 2019-05-15 | The no-welding battery structure of tab |
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Cited By (1)
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| CN111446393A (en) * | 2020-03-19 | 2020-07-24 | 荣盛盟固利新能源科技有限公司 | Quick battery module in groups |
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