CN205921001U - Utmost point column type lithium - ion battery cover plate - Google Patents
Utmost point column type lithium - ion battery cover plate Download PDFInfo
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- CN205921001U CN205921001U CN201620874357.7U CN201620874357U CN205921001U CN 205921001 U CN205921001 U CN 205921001U CN 201620874357 U CN201620874357 U CN 201620874357U CN 205921001 U CN205921001 U CN 205921001U
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- board body
- cover board
- negative terminal
- positive terminal
- pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides an utmost point column type lithium - ion battery cover plate, belongs to lithium bettery member technical field. Including the apron body, pressure release explosion proof hole is established at its middle part, the explosion -proof mechanism of pressure release arranges apron body one side back to lithium battery shell body in, just, negative pole post location is at the left and right end of lapping the body, just, negative pole post electrode lead tablet and just, negative pole post riveting, the structure of anodal post and anodal post electrode lead tablet's the same with the structure of negative pole post structure is the same with negative pole post electrode lead tablet's structure, characteristics: the middle position of anodal post constitutes has an anodal post internal thread hole, and the middle position of negative pole post constitutes there is a negative pole post internal thread hole a notes liquid hole to lithium battery shell body's shell intracavity introduction electrolyte that is used for of running through the thickness orientation of lap body is offered on the body to the apron. Connecting terminal through having the external screw thread convenient and swiftly realize on the apron body of adjacent lithium cell just, the electric series connection between the negative pole post, convenient shell intracavity to lithium battery shell body pours into electrolyte into.
Description
Technical field
This utility model belongs to lithium battery component technology field and in particular to a kind of pole type lithium battery cover plate.
Background technology
Aforesaid pole type lithium battery cover plate is for polar-plate-type lithium battery cover plate.As is known in the industry, lithium electricity
Pond is by housing, the lithium cell core (being made up of the plural number piece positive and negative plate of barrier film dielectric separation) of the shell intracavity being located at housing and lid
Plate forms.Because lithium battery has, capacity is big, lightweight, be on active service cycle length, energy density height, memory-less effect, self-discharge rate
The strong point such as low and environmentally friendly, thus thought highly of and be widely used in by industry electric automobile, electric bicycle or even
All kinds of hardware ＆ tools, etc..
Lithium battery cover plate is one of the structural system of lithium battery pith and in disclosed Chinese patent literature
In be no lack of be seen in, slightly to enumerate as cn203721782u(cover plate of power lithium), the high riveting of cn203871392u(integration
Formula lithium battery cover plate), a kind of cover board for pole type lithium battery of cn104466043a(and using this cover plate post type lithium electricity post) and
A kind of cn105810857a(lithium battery cover assembly), etc..
" polar plate type lithium battery cover plate " and " post type of cn102339959a offer that typical case such as cn202308090u recommends
Lithium electricity post cover plate ", being technically characterized in that of this two patents: open up explosionproof hole at the middle part of the length direction of substrate, explosion-proof
The position setting rupture pressure disc in hole the setting of the position above corresponding to rupture pressure disc cover sheet, rupture pressure disc and cover sheet it
Between space be configured to pressure releasing chamber, when the pressure of the shell intracavity of lithium battery exceedes setting value, rupture pressure disc explosion and pressure release, to keep away
Exempt from integrally to explode generation accident because of lithium battery.But this two patent formula at least exist and lead to disadvantage at following two: first, due to just
The structure of pole and negative terminal is lost rationally, thus is connecting with the positive terminal on the cover plate of adjacent lithium battery and negative terminal
More bother during connection, for example, welding manner can only be selected to realize electrical connection, specifically can be found in the explanation of cn102339959a
The 0020th section of the description that the 0018th section and cn202308090u of book；Second, because substrate (i.e. cover board body, as follows) is whole
The enclosed construction of body, thus the shell chamber injection electrolyte of housing is brought inconvenience.
For above-mentioned prior art it is necessary to be improved, make beneficial design for this applicant, will be detailed below being situated between
The technical scheme continuing produces under this background.
Content of the invention
Task of the present utility model is to provide a kind of structure contributing to improving positive terminal and negative terminal and the side of using
Just and quickly it is connected in series between the positive terminal on adjacent lithium battery cover plate and negative terminal and be conducive in cover board body
Inject electrolyte to shell intracavity according to need in the state of being held in housing and use the pole type lithium battery of the convenience embodying fluid injection
Cover plate.
Task of the present utility model is performed by, a kind of pole type lithium battery cover plate, including a cover board body,
The middle part of the length direction of this cover board body offers a pressure-relief explosion-proof hole, and the thickness side of cover board body is run through in this pressure-relief explosion-proof hole
To；One pressure-relief explosion-proof mechanism, this pressure-relief explosion-proof mechanism is arranged at cover board body in the position corresponding to described pressure-relief explosion-proof hole and exists
Back to the side of lithium battery casing under use state；One positive terminal and a negative terminal, positive terminal is between described cover board body
It is positioned at the left end of cover board body, negative terminal equally keeps electrically exhausted between cover board body in the state of keeping electric insulation
It is positioned at the right-hand member of cover board body in the state of edge；One positive terminal electrode leader and a negative terminal electrode leader, positive terminal electrode
Leader is being riveted across cover board body and in the state of keeping insulating and cover board body between simultaneously with described positive terminal, negative terminal
Electrode leader equally in the state of keep insulation and cover board body between across cover board body and simultaneously with described negative terminal riveting
Connect, wherein: the structure of described positive terminal is identical with the structure of described negative terminal and the structure of described positive terminal electrode leader with
The structure of described negative terminal electrode leader is identical, is characterised by: constituting in the middle position of described positive terminal has in a positive terminal
Screwed hole, and constitute in the middle position of described negative terminal and have a negative terminal internal thread hole, described cover board body offers
The liquid injection hole for introducing from electrolyte to the shell intracavity of lithium battery casing of one thickness direction running through cover board body.
In a specific embodiment of the present utility model, on described cover board body and around described pressure-relief explosion-proof
The circumferencial direction in hole is constituted a pressure-relief explosion-proof mechanism installation cavity, and described pressure-relief explosion-proof mechanism is corresponding to pressure-relief explosion-proof hole
Fix with pressure-relief explosion-proof mechanism installation cavity under state.
In another specific embodiment of the present utility model, described pressure-relief explosion-proof mechanism includes a rupture pressure disc and one
Rupture pressure disc splash guard, the middle position of rupture pressure disc constitute have a rupture pressure disc pressure pocket, this rupture pressure disc pressure pocket be in hemispherical simultaneously
And just to described pressure-relief explosion-proof hole, the bottom of chamber wall weldering of the edge position of rupture pressure disc and described pressure-relief explosion-proof mechanism installation cavity
Gu, rupture pressure disc splash guard with soar in rupture pressure disc top state by the trim ring of its underpart and pressure-relief explosion-proof mechanism installation cavity
Bottom of chamber wall solid welding, in the surrounding of this rupture pressure disc splash guard, steam vent is offered with space state.
In another specific embodiment of the present utility model, described rupture pressure disc is the aluminum in 0.3-0.5mm for the thickness
Paper tinsel；Described rupture pressure disc splash guard is made of aluminum.
In another specific embodiment of the present utility model, on described cover board body and corresponding to described just
The position of pole and described negative terminal is respectively molded with a cover board body electric insulation pad, by cover board body electric insulation pad
Make positive terminal, described positive terminal electrode leader, negative terminal and described negative terminal electrode leader all and cover board body between
Form electric insulation.
Also have in a specific embodiment of the present utility model, expand in the bottom of described positive terminal and be provided with a positive terminal
Fixed plate, this positive terminal fixed plate passes through positive terminal fixed plate rivet together with described cover board body electric insulation pad and described
Positive terminal electrode leader is positioned at the left end of described cover board body；It is provided with a negative terminal in the expansion of the bottom of described negative terminal to fix
Plate, this negative terminal fixed plate passes through negative terminal fixed plate rivet together with cover board body electric insulation pad and described negative terminal electricity
Pole leader is positioned at the right-hand member of cover board body.
Of the present utility model more and in a specific embodiment, described Cover Plate Body Is aluminium sheet.
In an of the present utility model and then specific embodiment, described positive terminal and positive terminal electrode leader are
Aluminum material, and described negative terminal and negative terminal electrode leader are copper material, by aluminum material and copper material
Form potential difference between positive and negative pole.
Material in cover board body electric insulation pad of the present utility model and more and in a specific embodiment, described
For politef.
Of the present utility model and and then a specific embodiment in, the described front end of positive terminal electrode leader and after
End respectively leans out described cover board body, and the front-end and back-end of described negative terminal electrode leader equally respectively lean out cover board body.
The technical scheme that this utility model provides has positive terminal internal thread hole simultaneously due to constituting in the middle position of positive terminal
And have negative terminal internal thread hole in the middle position of negative terminal composition, thus can be by carrying in the state of need not adopting welding
Externally threaded connection terminal easily and quickly realizes the electric string between the positive and negative pole on the cover board body of adjacent lithium battery
Connection connects；Due to liquid injection hole having been opened up on cover board body, thus it is able to easily inject electricity to the shell intracavity of lithium battery casing
Solution liquid.
Brief description
Fig. 1 is example structure figure of the present utility model.
Specific embodiment
In order to be more clearly understood from technical spirit of the present utility model and beneficial effect, applicant is below with reality
The mode applying example elaborates, but is not the restriction to this utility model scheme to the description of embodiment, any foundation
The done only pro forma rather than substantial equivalent transformation of this utility model design is regarded as of the present utility model
Technical scheme category.
Refer to Fig. 1, show a cover board body 1, be cover board body 1 at the middle part of the length direction of this cover board body 1
Cornerwise intersection offer a pressure-relief explosion-proof hole 11, the thickness direction of cover board body 1 is run through in this pressure-relief explosion-proof hole 11；Show
Go out a pressure-relief explosion-proof mechanism 2, this pressure-relief explosion-proof mechanism 2 is arranged at cover plate originally in the position corresponding to aforementioned pressure-relief explosion-proof hole 11
Body 1 is in a state of use back to the side (i.e. location status shown in Fig. 1 are towards upper side) of lithium battery casing；Just show one
Pole 3 and a negative terminal 4, positive terminal 3 is fixed on cover plate originally in the state of keeping electric insulation between carrier board body 1
The left end of body 1, is fixed on the right side of cover board body 1 in the state of the same holding electric insulation between cover board body 1 of negative terminal 4
End；Show a positive terminal electrode leader 5 and a negative terminal electrode leader 6, positive terminal electrode leader 5 is across cover board body 1
And rivet with aforementioned positive electrode post 3 in the state of keeping insulation and cover board body 1 between, negative terminal electrode leader 6 equally exists. simultaneously
Rivet with aforementioned negative terminal 4, wherein: aforementioned across cover board body 1 and in the state of keeping insulating and cover board body 1 between simultaneously
The structure of positive terminal 3 is identical with the structure of aforementioned negative terminal 4 and the structure of aforementioned positive electrode post electrode leader 5 and aforementioned negative terminal
The structure of electrode leader 6 is identical.
The technical essential of the technical scheme providing as this utility model: constituting in the middle position of aforementioned positive electrode post 3 has
One positive terminal internal thread hole 31, and constitute in the middle position of aforementioned negative terminal 4 and have a negative terminal internal thread hole 41, positive and negative electrode
Post internal thread hole is blind hole (top is communicated, and bottom lock) with the external world.Carrier board body 1 offers one and runs through lid
The liquid injection hole 12 for introducing from electrolyte to the shell intracavity of lithium battery casing of the thickness direction of plate body 1.
Although aforementioned liquid injection hole 12 has been opened in the position in the upper right corner of cover board body 1 by the present embodiment, it is not intended to
The position that must select, for example, liquid injection hole 12 can be opened in the middle part of the right-hand member of cover board body 1 but it is also possible to be opened in cover plate originally
The upper right corner of body 1, the lower right corner, the upper left corner, the lower left corner, below above middle part or middle part, etc..
On carrier board body 1 and around aforementioned pressure-relief explosion-proof hole 11 circumferencial direction constitute have a pressure-relief explosion-proof machine
Structure installation cavity 13, aforesaid pressure-relief explosion-proof mechanism 2 is installed with pressure-relief explosion-proof mechanism in the state of corresponding to pressure-relief explosion-proof hole 11
Chamber 13 is fixing.
Aforesaid pressure-relief explosion-proof mechanism 2 includes a rupture pressure disc 21 and a rupture pressure disc splash guard 22, in the central authorities of rupture pressure disc 21
Position is constituted a rupture pressure disc pressure pocket 211, and this rupture pressure disc pressure pocket 211 is in hemispherical and just to aforesaid pressure-relief explosion-proof hole
11, the bottom of chamber wall solid welding of the edge position of rupture pressure disc 21 and aforementioned pressure-relief explosion-proof mechanism installation cavity 13, rupture pressure disc splash guard
22 pass through the trim ring 221 of its underpart and the bottom of chamber of pressure-relief explosion-proof mechanism installation cavity 13 with the state soared in the top of rupture pressure disc 21
Wall solid welding, offers steam vent 222 in the surrounding of this rupture pressure disc splash guard 22 with space state.
When pressure in lithium battery case body has exceeded setting value, under pressure, rupture pressure disc 21 is broken (i.e. quick-fried
Split), the pressed gas in lithium battery case body are let out to the external world, and the rupture pressure disc 21 bursting is stopped by rupture pressure disc splash guard 22, it is to avoid
The rupture pressure disc 21 splashing causes secondary hazards to adjacent lithium battery, such as causes short circuit.
Aforesaid rupture pressure disc 21 is preferably the aluminium foil of 0.3-0.5mm for thickness, with specific reference to the lithium battery case of different size
The bearing capacity of body changes thickness；Aforesaid rupture pressure disc splash guard 22 is made of aluminum.
Respectively it is molded with carrier board body 1 and in the position corresponding to aforementioned positive electrode post 3 and aforementioned negative terminal 4
One cover board body electric insulation pad 14, makes positive terminal 3, aforesaid positive terminal electrode draw by cover board body electric insulation pad 14
Piece 5, negative terminal 4 and aforesaid negative terminal electrode leader 6 all form electric insulation and cover board body 1 between.
Expand in the bottom of aforementioned positive electrode post 3 and be provided with a positive terminal fixed plate 32, this positive terminal fixed plate 32 passes through positive terminal
Fixed plate rivet 321 is positioned at aforementioned together with carrier board body electric insulation pad 14 and aforesaid positive terminal electrode leader 5
The left end of cover board body 1；Expand in the bottom of aforementioned negative terminal 4 and be provided with a negative terminal fixed plate 42, this negative terminal fixed plate 42 is led to
Cross negative terminal fixed plate rivet 421 to be positioned at together with cover board body electric insulation pad 14 and aforesaid negative terminal electrode leader 6
The right-hand member of cover board body 1.The front-end and back-end of positive and negative pole electrode leader 5,6 all lean out cover board body 1 as shown in Figure 1, should
Positive and negative electrode leader 5,6 is used for and lithium cell core electrical connection.
Preferably, aforesaid cover board body 1 is made of aluminum, and aforesaid positive terminal 3 and positive terminal electrode leader 5 are aluminum
Material, and aforementioned negative terminal 4 and negative terminal electrode leader 6 are copper material, by aluminum material and copper material just,
Form potential difference between negative terminal 3,4.
In the present embodiment, the material of aforesaid cover board body electric insulation pad 14 is politef.
In sum, the technical scheme that this utility model provides overcomes the deficiency in prior art, satisfactorily completes
Invention task, has faithfully cashed the technique effect described in applicant's superincumbent technique effect hurdle.
Claims (10)
1. a kind of pole type lithium battery cover plate, including a cover board body (1), at the middle part of the length direction of this cover board body (1)
Offer a pressure-relief explosion-proof hole (11), the thickness direction of cover board body (1) is run through in this pressure-relief explosion-proof hole (11)；One pressure-relief explosion-proof machine
Structure (2), this pressure-relief explosion-proof mechanism (2) is arranged at cover board body (1) in the position corresponding to described pressure-relief explosion-proof hole (11) and makes
With the side back to lithium battery casing under state；One positive terminal (3) and a negative terminal (4), positive terminal (3) is with described cover plate originally
It is positioned at the left end of cover board body (1), negative terminal (4) is equally with cover plate originally in the state of keeping electric insulation between body (1)
It is positioned at the right-hand member of cover board body (1) in the state of keeping electric insulation between body (1)；One positive terminal electrode leader (5) and one
Negative terminal electrode leader (6), positive terminal electrode leader (5) is being protected across cover board body (1) and simultaneously and cover board body (1) between
Rivet with described positive terminal (3) in the state of holding insulation, negative terminal electrode leader (6) is equally across cover board body (1) and same
When and cover board body (1) between keep insulation in the state of with described negative terminal (4) riveting, wherein: the knot of described positive terminal (3)
Structure is identical with the structure of described negative terminal (4) and structure of described positive terminal electrode leader (5) is drawn with described negative terminal electrode
The structure of piece (6) identical it is characterised in that: the middle position of described positive terminal (3) constitute have a positive terminal internal thread hole
(31), and in the middle position of described negative terminal (4) constituting has a negative terminal internal thread hole (41), in described cover board body (1)
On offer a thickness direction running through cover board body (1) for lithium battery casing shell intracavity introduce electrolyte fluid injection
Hole (12).
2. pole type lithium battery cover plate according to claim 1 is it is characterised in that above and enclose in described cover board body (1)
Constituting around the circumferencial direction of described pressure-relief explosion-proof hole (11) has pressure-relief explosion-proof mechanism installation cavity (13), described pressure-relief explosion-proof machine
Structure (2) is fixing with pressure-relief explosion-proof mechanism installation cavity (13) in the state of corresponding to pressure-relief explosion-proof hole (11).
3. pole type lithium battery cover plate according to claim 2 is it is characterised in that described pressure-relief explosion-proof mechanism (2) includes
One rupture pressure disc (21) and a rupture pressure disc splash guard (22), constituting in the middle position of rupture pressure disc (21) has a rupture pressure disc pressure pocket
(211), this rupture pressure disc pressure pocket (211) is in hemispherical and just to described pressure-relief explosion-proof hole (11), and the four of rupture pressure disc (21)
Circumferential edges position and the bottom of chamber wall solid welding of described pressure-relief explosion-proof mechanism installation cavity (13), rupture pressure disc splash guard (22) is to soar in anti-
The state of the top of quick-fried film (21) is by the bottom of chamber wall weldering of the trim ring (221) of its underpart and pressure-relief explosion-proof mechanism installation cavity (13)
Gu, in the surrounding of this rupture pressure disc splash guard (22), steam vent (222) is offered with space state.
4. pole type lithium battery cover plate according to claim 3 is it is characterised in that described rupture pressure disc (21) exists for thickness
The aluminium foil of 0.3-0.5mm；Described rupture pressure disc splash guard (22) is made of aluminum.
5. pole type lithium battery cover plate according to claim 1 it is characterised in that described cover board body (1) upper and
Position corresponding to described positive terminal (3) and described negative terminal (4) is respectively molded with cover board body electric insulation pad (14), mat
Positive terminal (3), described positive terminal electrode leader (5), negative terminal (4) and institute are made by cover board body electric insulation pad (14)
Negative terminal electrode leader (6) stated forms electric insulation all and cover board body (1) between.
6. pole type lithium battery cover plate according to claim 5 sets it is characterised in that expanding in the bottom of described positive terminal (3)
There is a positive terminal fixed plate (32), this positive terminal fixed plate (32) passes through positive terminal fixed plate rivet (321) together with described cover plate
Body electric insulation pad (14) and described positive terminal electrode leader (5) are positioned at the left end of described cover board body (1)；Institute
The bottom expansion stating negative terminal (4) is provided with a negative terminal fixed plate (42), and this negative terminal fixed plate (42) passes through negative terminal fixed plate
Rivet (421) is positioned at cover board body together with cover board body electric insulation pad (14) and described negative terminal electrode leader (6)
(1) right-hand member.
7. the pole type lithium battery cover plate according to claim 1 or 2 or 5 is it is characterised in that described cover board body (1) is
Aluminium sheet.
8. the pole type lithium battery cover plate according to claim 1 or 5 or 6 it is characterised in that described positive terminal (3) and
Positive terminal electrode leader (5) is aluminum material, and described negative terminal (4) and negative terminal electrode leader (6) are copper material, mat
Potential difference is formed between positive and negative pole (3,4) by aluminum material and copper material.
9. the pole type lithium battery cover plate according to claim 5 or 6 is it is characterised in that described cover board body electric insulation
The material of pad (14) is politef.
10. pole type lithium battery cover plate according to claim 8 is it is characterised in that described positive terminal electrode leader (5)
Front-end and back-end respectively lean out described cover board body (1), and the front-end and back-end of described negative terminal electrode leader (6) are same
Respectively lean out cover board body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620874357.7U CN205921001U (en) | 2016-08-12 | 2016-08-12 | Utmost point column type lithium - ion battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620874357.7U CN205921001U (en) | 2016-08-12 | 2016-08-12 | Utmost point column type lithium - ion battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205921001U true CN205921001U (en) | 2017-02-01 |
Family
ID=57871740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620874357.7U Active CN205921001U (en) | 2016-08-12 | 2016-08-12 | Utmost point column type lithium - ion battery cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205921001U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711594A (en) * | 2018-05-30 | 2018-10-26 | 东莞市奕东电子有限公司 | A kind of battery cover board |
| CN111668399A (en) * | 2020-03-31 | 2020-09-15 | 苏州炬鸿通讯电脑科技有限公司 | Internal thread type high-capacity lithium battery cover plate |
| CN111933833A (en) * | 2020-09-21 | 2020-11-13 | 江苏时代新能源科技有限公司 | End cover assembly, battery monomer, battery and power consumption device |
-
2016
- 2016-08-12 CN CN201620874357.7U patent/CN205921001U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711594A (en) * | 2018-05-30 | 2018-10-26 | 东莞市奕东电子有限公司 | A kind of battery cover board |
| CN111668399A (en) * | 2020-03-31 | 2020-09-15 | 苏州炬鸿通讯电脑科技有限公司 | Internal thread type high-capacity lithium battery cover plate |
| CN111933833A (en) * | 2020-09-21 | 2020-11-13 | 江苏时代新能源科技有限公司 | End cover assembly, battery monomer, battery and power consumption device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |