CN107302064A - Battery top cap subassembly - Google Patents
Battery top cap subassembly Download PDFInfo
- Publication number
- CN107302064A CN107302064A CN201610237617.4A CN201610237617A CN107302064A CN 107302064 A CN107302064 A CN 107302064A CN 201610237617 A CN201610237617 A CN 201610237617A CN 107302064 A CN107302064 A CN 107302064A
- Authority
- CN
- China
- Prior art keywords
- pole
- insulation shell
- lower insulation
- cap component
- 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.)
- Granted
Links
- 238000009413 insulation Methods 0.000 claims description 54
- 230000010485 coping Effects 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003466 welding 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
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
-
- 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)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a battery top cover assembly which comprises a top cover plate, a first pole and a lower insulating shell. The top cover plate is provided with an installation hole which is through along the axial direction. The first pole has: the bottom disc part is arranged on the lower side of the top cover plate; and the column part is vertically arranged on the bottom plate part along the axial direction and penetrates out of the mounting hole of the top cover plate. The lower insulating shell is arranged on the lower side of the top cover plate and fixes the bottom plate part of the first pole. Wherein, the top cover plate is provided with a first matching part; correspondingly, the lower insulating case has: and the second matching part is jointed with the first matching part of the top cover plate so as to lock the lower insulating shell and further prevent the first pole from rotating. In the battery top cap assembly according to the present invention, the second fitting portion of the lower insulating case is engaged with the first fitting portion of the top cap piece, and then the lower insulating case is locked, and the locked lower insulating case cannot be rotated, so that the bottom plate portion fixed to the lower insulating case cannot be rotated, thereby preventing the rotation of the first terminal post.
Description
Technical field
The present invention relates to field of batteries, more particularly to a kind of battery cap component.
Background technology
At present, have that energy density is high, power density is high due to lithium ion battery, recycle often, storage time
Long the advantages of, it is widely used on the portable electric appts such as mobile phone, DV and laptop computer, and
Widely should have in terms of the big-and-middle-sized electrical equipment such as the electric vehicles such as electric automobile, electric bicycle and energy storage facility
With prospect, as the key for solving the global problem such as energy crisis and environmental pollution.
Increasingly perfect with electric vehicle engineering, electric automobile and hybrid electric vehicle are from daily life increasingly
Closely, huge business opportunity is there is, while electric automobile is proposed more to the security performance that the lithium ion battery of energy is provided for it
High requirement.But for the square structure aluminum-shell battery being widely used at present, the structure of top cover is excessively complicated, cost
Height, and there is the risk of this wire short circuit.Reference picture 1, in existing battery cap component, the first pole 2 and top cover
Piece 1 is positioned by locating piece S, realizes pole anti-rotating function.Generally, locating piece S is made up of ceramics, and ceramic cost is high, and
Easily scraped during assembling ceramic with the first pole 2, cause metal fillings to produce, caused the short circuit of battery cap component, cause electricity
Core self discharge, influences the battery core life-span.
The content of the invention
In view of problem present in background technology, it is an object of the invention to provide a kind of battery cap component, it can prevent
The only rotation of pole.
To achieve these goals, the invention provides a kind of battery cap component, it include coping plate, the first pole with
And lower insulation shell.
Coping plate is provided with the mounting hole of insertion vertically.
First pole has：Chassis portion, is arranged at the downside of coping plate；And trunk portion, chassis portion is erected on vertically
And passed from the mounting hole of coping plate.
Lower insulation shell is arranged at the downside of coping plate and fixes the chassis portion of the first pole.
Wherein, coping plate has the first auxiliary section；Accordingly, lower insulation shell has：Second auxiliary section, with coping plate
One auxiliary section is engaged, and lower insulation shell is locked simultaneously and then the first polar-column rotation is prevented.
Beneficial effects of the present invention are as follows：
In the battery cap component according to the present invention, the second auxiliary section of lower insulation shell and the first auxiliary section of coping plate connect
Lower insulation shell locking after conjunction, the lower insulation shell after locking can not rotate, so the chassis portion being fixed on lower insulation shell can not revolve
Turn, the rotation of the first pole is prevented with this.
Brief description of the drawings
Fig. 1 is the schematic diagram of the battery cap component of prior art；
Fig. 2 is the schematic diagram of an embodiment of the battery cap component according to the present invention；
Fig. 3 is the schematic diagram of an embodiment of the coping plate of the battery cap component according to the present invention；
Fig. 4 is the schematic diagram of the lower insulation shell coordinated with Fig. 3 coping plate；
Fig. 5 is the schematic diagram of another embodiment of the coping plate of the battery cap component according to the present invention；
Fig. 6 is the schematic diagram of the lower insulation shell coordinated with Fig. 5 coping plate；
Fig. 7 is the stereogram of the battery cap component according to the present invention；
Fig. 8 is the stereogram of the lower insulation shell shown in Fig. 7；
Fig. 9 according to the present invention battery cap component another embodiment schematic diagram；
Figure 10 is the stereogram of the lower insulation shell shown in Fig. 9；
Figure 11 is the stereogram of the first pole shown in Fig. 9.
Wherein, description of reference numerals is as follows：
The auxiliary section of 1 coping plate 33 second
The convex portion of 11 mounting hole 34
The perforate of 12 first auxiliary section 341
The through hole of 13 liquid injection hole 35 second
The fixture block of 2 first pole 36
The sealing ring of 21 chassis portion 4
Insulation shell on 211 necks 5
22 trunk portion A axial directions
3 times insulation shell R are radially
31 first through hole S locating pieces
32 fixing grooves
Embodiment
With reference to the accompanying drawings come describe in detail the present invention battery cap component.
Reference picture 2 includes coping plate 1, the first pole 2 and lower insulation to Figure 11 according to the battery cap component of the present invention
Shell 3.
Coping plate 1 is provided with the mounting hole 11 of A insertions vertically.
First pole 2 has：Chassis portion 21, is arranged at the downside of coping plate 1；And trunk portion 22, vertically A be erected on
Chassis portion 21 and passed from the mounting hole 11 of coping plate 1.
Lower insulation shell 3 is arranged at the downside of coping plate 1 and fixes the chassis portion 21 of the first pole 2.
Wherein, coping plate 1 has the first auxiliary section 12；Accordingly, lower insulation shell 3 has：Second auxiliary section 33, with top cover
First auxiliary section 12 of piece 1 is engaged, and lower insulation shell 3 is locked and and then prevents the first pole 2 from rotating.
In the battery cap component according to the present invention, the second auxiliary section 33 of lower insulation shell 3 coordinates with the first of coping plate 1
Lower insulation shell 3 is locked after the engagement of portion 12, and the lower insulation shell 3 after locking can not rotate, so being fixed on the chassis on lower insulation shell 3
Portion 21 can not be rotated, and the rotation of the first pole 2 is prevented with this.
In an embodiment of the battery cap component according to the present invention, reference picture 2 to Fig. 6, the first of coping plate 1 coordinates
Portion 12 is groove；Accordingly, the second auxiliary section 33 of lower insulation shell 3 is boss, and the shape of boss is corresponding with groove.By recessed
The engagement of groove and boss, can prevent from during lower 3 stress of insulation shell rotating along the first pole 2.
In an embodiment of the battery cap component according to the present invention, the first auxiliary section 12 of coping plate 1 is boss；It is right
Ying Di, the second auxiliary section 33 of lower insulation shell 3 is groove, and the shape of groove is corresponding with boss.
In an embodiment of the battery cap component according to the present invention, reference picture 3 is to Fig. 6, and the boss is cylinder
Boss, conical boss or arc boss.Accordingly, the groove is cylinder shape groove, cone-shaped groove or arc groove.
In an embodiment of the battery cap component according to the present invention, the boss is for one or around the first pole 2
What is be distributed is multiple.
In an embodiment of the battery cap component according to the present invention, lower insulation shell 3 is formed by being molded.Lower insulation shell
3 first injection moldings, then assembled with the pole 2 of coping plate 1 and first；Or first assemble the pole 2 of coping plate 1 and first, it is then lower exhausted
Edge shell 3 is directly molded and the formation integrative-structure of coping plate 1.Because lower insulation shell 3 is by injection molding, so will not assembling process
The middle scraping pole 2 of coping plate 1 and first, it is to avoid produce metal fillings.
In an embodiment of the battery cap component according to the present invention, reference picture 2, Fig. 3, Fig. 5, Fig. 7 and Fig. 9, top cover
Piece 1 also has liquid injection hole 13.
In an embodiment of the battery cap component according to the present invention, reference picture 7, Fig. 8 and Figure 10, lower insulation shell 3 is also
With convex portion 34, the center of convex portion 34 is provided with perforate 341 corresponding with liquid injection hole 13.By the tab welding of battery to the first pole
When on 2, convex portion 34 can avoid lug from contacting (lug contacts coping plate 1 via perforate 341) with coping plate 1, prevent in battery
Short circuit.
In an embodiment of the battery cap component according to the present invention, reference picture 2, lower insulation shell 3 is by the first pole 2
A is separated vertically with coping plate 1 in chassis portion 21.
In an embodiment of the battery cap component according to the present invention, reference picture 8, lower insulation shell 3 has：First through hole
31, the trunk portion 22 for the first pole 2 is passed through；And fixing groove 32, it is fastened togather with the chassis portion 21 of the first pole 2.
In an embodiment of the battery cap component according to the present invention, reference picture 2, the battery cap component is also wrapped
Include：Sealing ring 4, is set in trunk portion 22 and is arranged in chassis portion 21, by the chassis portion 21 of the first pole 2 and mounting hole 11
A is separated vertically, be arranged with sealing ring 4 trunk portion 22 pass through lower insulation shell 3 first through hole 31, the outer rim of sealing ring 4 with
The inner edge of the first through hole 31 of lower insulation shell 3 is brought into close contact.
In an embodiment of the battery cap component according to the present invention, reference picture 2, the first through hole 31 of lower insulation shell 3
Inner edge section be oblique line shape, fold-line-shaped or S-shaped.If the section of the inner edge of the first through hole 31 of lower insulation shell 3 is straight line
Shape, then metal fillings in battery cap component is easily by between the Inner edge of first through hole 31 and the outer rim of sealing ring 4
Gap (in actual applications, although the inner edge of the outer rim of sealing ring 4 and the first through hole 31 of lower insulation shell 3 is brought into close contact, also can
Produce gap), and oblique line shape, fold-line-shaped or this kind of special shape of S-shaped can effectively limit metal fillings by the gap, carry
The sealing property of high battery cap component and the security performance of battery.
According to the present invention battery cap component an embodiment in, reference picture 9, the chassis portion 21 of the first pole 2 with
A is contacted coping plate 1 vertically.
In an embodiment of the battery cap component according to the present invention, reference picture 10, lower insulation shell 3 has：Second leads to
Hole 35, the trunk portion 22 for the first pole 2 is passed through；And fixture block 36, it is arranged on the Inner edge of the second through hole 31.Fixture block 36 can be
The projection enclosed around the Inner edge one of the second through hole 31, what can also be set along the Inner edge of the second through hole 31 is multiple discrete convex
Block.
In an embodiment of the battery cap component according to the present invention, reference picture 11, the chassis portion 21 of the first pole 2 has
There is the neck 211 corresponding with fixture block 36.
In an embodiment of the battery cap component according to the present invention, reference picture 2 and Fig. 9, the battery cap component
Also include：Upper insulation shell 5, is sheathed on the trunk portion 22 of the first pole 2, by the trunk portion 22 of the first pole 2 and the edge of coping plate 1
Radial direction R is separated.
In an embodiment of the battery cap component according to the present invention, upper insulation shell 5 is formed by being molded.Upper insulation shell
5 can be with the injection molding simultaneously of lower insulation shell 3.
In an embodiment of the battery cap component according to the present invention, the first pole 2 is Positive Poles or negative pole pole.
Claims (10)
1. a kind of battery cap component, including：
Coping plate (1), the mounting hole (11) provided with (A) insertion vertically；
First pole (2), has：
Chassis portion (21), is arranged at the downside of coping plate (1)；And
Trunk portion (22), vertically (A) be erected on chassis portion (21) and passed from the mounting hole (11) of coping plate (1)；
Lower insulation shell (3), is arranged at the downside of coping plate (1) and fixes the chassis portion (21) of the first pole (2)；
Characterized in that,
Coping plate (1) has the first auxiliary section (12)；
Lower insulation shell (3) has：
Second auxiliary section (33), is engaged with the first auxiliary section (12) of coping plate (1), by lower insulation shell (3) locking and and then
Prevent the first pole (2) from rotating.
2. battery cap component according to claim 1, it is characterised in that
The first auxiliary section (12) of coping plate (1) is groove；The second auxiliary section (33) of lower insulation shell (3) is boss, and boss
Shape it is corresponding with groove；Or
The first auxiliary section (12) of coping plate (1) is boss；The second auxiliary section (33) of lower insulation shell (3) is groove, and groove
Shape it is corresponding with boss.
3. battery cap component according to claim 1, it is characterised in that lower insulation shell (3) is formed by being molded.
4. battery cap component according to claim 1, it is characterised in that
Coping plate (1) also has liquid injection hole (13)；
Lower insulation shell (3) also has convex portion (34), and convex portion (34) center is provided with perforate (341) corresponding with liquid injection hole (13).
5. battery cap component according to claim 1, it is characterised in that lower insulation shell (3) is by the bottom of the first pole (2)
(A) is separated pan portion (21) vertically with coping plate (1).
6. battery cap component according to claim 5, it is characterised in that lower insulation shell (3) has：
First through hole (31), the trunk portion (22) for the first pole (2) is passed through；And
Fixing groove (32), is fastened togather with the chassis portion (21) of the first pole (2).
7. battery cap component according to claim 6, it is characterised in that the battery cap component also includes：
Sealing ring (4), is set in trunk portion (22) and is arranged in chassis portion (21), by the chassis portion of the first pole (2)
(21) (A) is separated vertically with mounting hole (11), is arranged with the trunk portions (22) of sealing ring (4) through the of lower insulation shell (3)
One through hole (31), the inner edge of the outer rim of sealing ring (4) and the first through hole (31) of lower insulation shell (3) is brought into close contact.
8. battery cap component according to claim 7, it is characterised in that the first through hole (31) of lower insulation shell (3)
The section of inner edge is oblique line shape, fold-line-shaped or S-shaped.
9. battery cap component according to claim 1, it is characterised in that the chassis portion (21) of the first pole (2) and top
(A) is contacted cover plate (1) vertically.
10. battery cap component according to claim 9, it is characterised in that
Lower insulation shell (3) has：
Second through hole (35), the trunk portion (22) for the first pole (2) is passed through；And
Fixture block (36), is arranged on the Inner edge of the second through hole (31)；
The chassis portion (21) of first pole (2) has the neck (211) corresponding with fixture block (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237617.4A CN107302064B (en) | 2016-04-15 | 2016-04-15 | Battery top cover assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237617.4A CN107302064B (en) | 2016-04-15 | 2016-04-15 | Battery top cover assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107302064A true CN107302064A (en) | 2017-10-27 |
| CN107302064B CN107302064B (en) | 2023-07-04 |
Family
ID=60136921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610237617.4A Active CN107302064B (en) | 2016-04-15 | 2016-04-15 | Battery top cover assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107302064B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116471A (en) * | 2018-02-06 | 2019-08-13 | 陈东城 | Cover plate of power battery and its manufacturing method |
| CN110828718A (en) * | 2018-08-08 | 2020-02-21 | 深圳市瑞德丰精密制造有限公司 | Battery cover plate |
| WO2020057442A1 (en) * | 2018-09-19 | 2020-03-26 | 宁德时代新能源科技股份有限公司 | Top cover assembly and secondary battery |
| CN114223077A (en) * | 2021-03-31 | 2022-03-22 | 宁德新能源科技有限公司 | Battery and electric equipment |
| JP7575564B1 (ja) | 2023-09-01 | 2024-10-29 | 晶科▲儲▼能科技有限公司 | セルトップカバー及びセル |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299273A (en) * | 2010-06-28 | 2011-12-28 | 黎永康 | Sealed connecting and explosion-proof device of electrode pole on top cover of powered lithium battery and manufacturing method thereof |
| US8586225B1 (en) * | 2012-08-21 | 2013-11-19 | Harris Corporation | Battery assembly for an electronic device |
| CN204651372U (en) * | 2015-06-05 | 2015-09-16 | 宁德时代新能源科技有限公司 | For the cover assembly of battery modules |
| CN205609593U (en) * | 2016-04-15 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly |
-
2016
- 2016-04-15 CN CN201610237617.4A patent/CN107302064B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299273A (en) * | 2010-06-28 | 2011-12-28 | 黎永康 | Sealed connecting and explosion-proof device of electrode pole on top cover of powered lithium battery and manufacturing method thereof |
| US8586225B1 (en) * | 2012-08-21 | 2013-11-19 | Harris Corporation | Battery assembly for an electronic device |
| CN204651372U (en) * | 2015-06-05 | 2015-09-16 | 宁德时代新能源科技有限公司 | For the cover assembly of battery modules |
| CN205609593U (en) * | 2016-04-15 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116471A (en) * | 2018-02-06 | 2019-08-13 | 陈东城 | Cover plate of power battery and its manufacturing method |
| CN110828718A (en) * | 2018-08-08 | 2020-02-21 | 深圳市瑞德丰精密制造有限公司 | Battery cover plate |
| WO2020057442A1 (en) * | 2018-09-19 | 2020-03-26 | 宁德时代新能源科技股份有限公司 | Top cover assembly and secondary battery |
| EP3671887A4 (en) * | 2018-09-19 | 2020-12-30 | Contemporary Amperex Technology Co., Limited | Top cover assembly and secondary battery |
| US11777162B2 (en) | 2018-09-19 | 2023-10-03 | Contemporary Amperex Technology Co., Limited | Cap assembly and secondary battery |
| CN114223077A (en) * | 2021-03-31 | 2022-03-22 | 宁德新能源科技有限公司 | Battery and electric equipment |
| JP7575564B1 (ja) | 2023-09-01 | 2024-10-29 | 晶科▲儲▼能科技有限公司 | セルトップカバー及びセル |
| US12132214B1 (en) * | 2023-09-01 | 2024-10-29 | Jinko Energy Storage Technology Co., Ltd. | Cell top cover and cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107302064B (en) | 2023-07-04 |
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