CN101399361B - Cylindrical battery - Google Patents
Cylindrical battery Download PDFInfo
- Publication number
- CN101399361B CN101399361B CN2007101236308A CN200710123630A CN101399361B CN 101399361 B CN101399361 B CN 101399361B CN 2007101236308 A CN2007101236308 A CN 2007101236308A CN 200710123630 A CN200710123630 A CN 200710123630A CN 101399361 B CN101399361 B CN 101399361B
- Authority
- CN
- China
- Prior art keywords
- electric core
- insulated spacing
- plug
- spacing collar
- central boss
- 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.)
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- 230000000295 complement effect Effects 0.000 claims description 11
- 210000000078 claw Anatomy 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 abstract description 11
- 238000004804 winding Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 239000003792 electrolyte Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a cylindrical battery, comprising an electric core, a lug and two insulating ring spacers which are contained in a battery shell body, a central boss which is protrusive to a winding shaft hole of the electric core is arranged in the center of each insulating ring spacer, a core rod is arranged in the winding shaft hole of the electric core, the central bosses of the two insulating ring spacers are respectively fastened and connected with the two ends of the core rod, and the electric core is clamped between the two insulating ring spacers. The two insulating ring spacers which are positioned between a positive electrode-negative electrode electric core and a polar are fastened and connected with the core rod by leaving the core rod for winding the electric core in the winding shaft hole, the core rod generates the pull force to the insulating ring spacers and clamps the two ends of the electric core by reasonably setting the length of the core rod and the connection size between the insulating ring spacer and the core rod, thereby fixing the position of a polar piece in the electric core. When in shock, as the two ends of the polar piece are clamped by the insulating ring spacers, the electric core is difficult to be scattered due to the shock, and the electric core can be further reliably fixed in a battery, thereby preventing the occurrence of safety accidents.
Description
Technical field
The present invention relates to battery technology, more particularly, relate to a kind of cylindrical battery.
Background technology
In the prior art, charge and discharge owing to battery can carry out secondary, and its capacity is higher, therefore is widely used on the various products.Common have a cylindrical battery, can be used on the products such as electric automobile, electric bicycle.Cylindrical battery generally includes housing and the electric core that is housed in the housing, and the housing two ends are provided with cover plate, are respectively equipped with the both positive and negative polarity seat on two cover plates, is used for power supply picked out to product supplying power.Keep apart through insulating trip between cover plate and the utmost point seat, and utmost point seat extends to inside battery.Produce short circuit in order to prevent the collision of utmost point seat and electric core, be equipped with insulated spacing collar between both positive and negative polarity seat and the electric core, insulated spacing collar is provided with through hole, and lug passes through hole with both positive and negative polarity seat and the corresponding electrical connection of electric in-core positive/negative plate.After assembled, in housing, inject electrolyte, the intact back shutoff of fluid injection liquid injection hole forms cylindrical battery.
When making electric core, utilize plug as wireline reel usually, reel earlier which floor plays the barrier film of insulating effect, again with the positive/negative plate alternate positive and negative be wound on the plug, and spaced apart with barrier film between the two neighboring pole sheet.After electric core winding finishes, carry out the assembling of battery after usually plug being extracted out again.The boss that the spool hole of electricity core center is insulated the spacer ring projection usually withstands, and the line tighten is used in the periphery of electric core, thereby electric core is positioned between two insulated spacing collars, prevents that electric core from directly contacting with the both positive and negative polarity seat and be short-circuited.Yet, in the transportation and use of battery, run into sharp pounding or adverse circumstances such as jolt through regular meeting.In this environment, the both positive and negative polarity sector-meeting of electric core shakes, pushes, and makes the line of tighten electricity core break off easily, makes that the electric core in the battery scatters, and be short-circuited or explode, even initiation fire, bring security incident.Therefore, electric core not only need be insulated in battery well, and need be fixed in the battery reliably.
Summary of the invention
The technical problem that the present invention will solve is, scatters easily to the electric core that exists in the prior art cylindrical shape battery and causes the defective of security incident, provides a kind of internal electrical core can be by insulation, the cylindrical battery that can be fixed reliably again well.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of cylindrical battery; Comprise the lug of both positive and negative polarity seat on electric core, electrical connection electricity in-core positive/negative plate and the housing that is housed in roll coil of strip axis hole in the battery container and be arranged on electric core and utmost point seat between two insulated spacing collars; Said insulated spacing collar center is provided with prominent central boss to electric core spool hole; Said electric core spool is provided with plug in the hole; The central boss of said two insulated spacing collars is fastened together with the two ends of plug respectively, in the middle of two insulated spacing collars are clamped in electric core;
The positive and negative end sealing of housing is provided with cover plate, and cover plate is provided with centre bore, is provided with insulating trip and utmost point seat in the centre bore, and utmost point seat and insulating trip all extend to enclosure interior, and insulating trip comes utmost point seat and cover plate insulation;
Between insulated spacing collar and insulating trip, be provided with annular boss on the said insulated spacing collar, offer a plurality of short slots on the annular boss of insulated spacing collar;
Be provided with the centre bore that runs through in the said plug, offer a plurality of through holes on the plug centre bore hole wall.
In cylindrical battery according to the invention, the central boss of said insulated spacing collar and plug end link together through securing member, and two insulated spacing collars that link together and said electric core two ends form interference fits.
In cylindrical battery according to the invention, the central boss of said insulated spacing collar and plug end are fastened together through claw and the draw-in groove structure that cooperatively interacts, and two insulated spacing collars that link together and said electric core two ends form interference fits.
In cylindrical battery according to the invention, said central boss tail end is provided with counterbore, and said counterbore wall is provided with inner groove, and said counterbore wall along the circumferential direction is divided into a plurality of parts by a plurality of breach; Said plug end is provided with the flange that is complementary with said inner groove, is provided with the outer groove that is complementary with said counterbore wall between said flange and the plug stage casing.
In cylindrical battery according to the invention, said plug end is provided with counterbore, and said counterbore wall is provided with inner groove, and said counterbore wall along the circumferential direction is divided into a plurality of parts by a plurality of breach; The central boss tail end of said insulated spacing collar is provided with the flange that is complementary with said inner groove, is provided with the outer groove that is complementary with said counterbore wall between said flange and the central boss stage casing.
In cylindrical battery according to the invention, the central boss of said insulated spacing collar is provided with the centre bore that runs through.
The cylindrical battery of embodiment of the present invention; Have following beneficial effect: the plug through the electric core of will reeling is used is stayed in the spool hole; And will be fastened together at two insulated spacing collars and the plug between both positive and negative polarity electricity core and the utmost point seat; Length through plug rationally is set and the size for connection between insulated spacing collar and the plug make plug produce pulling force and clamp the two ends that are arranged on electric core insulated spacing collar, thus the position of fixing electric in-core pole piece.When vibrations take place when clamp because the two ends of pole piece are insulated spacer ring, make electric core be not easy to be shaken diffusing, thereby can reliably electric core be fixed in the battery, prevent the generation of security incident.
In addition, form cavity through on institute's edge spacer ring, between insulated spacing collar and insulating trip, being provided with annular boss, making between insulated spacing collar and the insulating trip; This cavity not only can be kept apart lug, reaches the effect of insulation, and when vibrations; Can pass through the distortion of insulating trip in cavity; Buffering acts directly on the vibrations on the insulated spacing collar, and it is diffusing to have prevented that further electric core from being shaken, and makes electric core be fixed in the battery more reliably.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of cylindrical battery according to the invention;
Fig. 2 be in the cylindrical battery according to the invention insulated spacing collar structural representation;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the amplification schematic perspective view of I portion among Fig. 3;
Fig. 5 is the structural representation of plug in the cylindrical battery according to the invention.
Embodiment
As shown in Figure 1; In the preferred embodiment of cylindrical battery of the present invention; Comprise housing 1 and the electric core 10 that is housed in the housing 1, the positive and negative end sealing of housing 1 is provided with cover plate 2, on said cover plate 2, is provided with centre bore 3; Be provided with insulating trip 4 and utmost point seat 5,6 in the centre bore 3, utmost point seat is battery is derived an output from power supply to product.Utmost point seat 5,6 and insulating trip 4 all extend to housing 1 inside, and insulating trip 4 comes utmost point seat and cover plate 2 insulation.Be provided with plug 20 in the spool hole 11 at electricity core 10 centers; Be provided with insulated spacing collar 30 between electricity core 10 and the utmost point seat; Insulated spacing collar 30 is provided with through hole 31, is provided with lug 7 in the through hole 31, and this lug 7 is electrically connected the positive/ negative plate 12,13 of electric in-core with both positive and negative polarity seat 5,6 accordingly.The center of insulated spacing collar 30 is provided with central boss 32, the protruding spool hole 11 to electric core of this boss.The central boss 32 of two insulated spacing collars 30 is fastened together with the two ends of plug 20 respectively, thereby electric core 10 is clamped between two insulated spacing collars 30.
Like Fig. 2,3, shown in 4, the through hole 31 on the insulated spacing collar 30 can be set to a plurality of, and can be fan-shaped distribution.Central boss 32 tail ends of insulated spacing collar are provided with counterbore 33, and said counterbore 33 walls are provided with inner groove 34, and said counterbore wall along the circumferential direction is divided into a plurality of parts by a plurality of breach 35, forms a plurality of claws 36.As shown in Figure 5, be provided with flange 21 in the end of plug 20, be provided with outer groove 22 between said flange 21 and plug 20 stage casings, promptly form the draw-in groove 23 that is complementary with claw 36.Wherein, The groover rot diameter of the diameter of flange 21 and said inner groove 34 is complementary; The groover rot diameter of the diameter of counterbore 33 and outer groove 22 is complementary, and makes that the flange 21 of plug 20 just in time snaps in the inner groove 34 on the counterbore wall when plug 20 ends are stretched in the counterbore 33 of central boss tail end; And the claw 36 that forms on the counterbore wall just in time snaps in the outer groove 22 of plug 20 ends, thereby plug 20 and insulated spacing collar 30 are fastened together.The tail end of the openend of said counterbore 33 and flange 21 all can be provided with chamfering 24, with convenient claw 36 is snapped in draw-in groove 23.The position and the width of length through plug 20 rationally is set and outer groove 22 and inner groove 34; Make two insulated spacing collars 30 link together respectively with the two ends of electric core 10 along forming matched in clearance on the axis direction of plug 20; Thereby electric core 10 is clamped between two insulated spacing collars 30, electric core 10 by reliable fixation in battery.
In this preferred embodiment, said insulated spacing collar 30 also is provided with annular boss 37 towards a side of insulating trip 4, and insulating trip 4 is arranged on the annular boss 37, makes to form cavity 38 between insulated spacing collar 30 and the insulating trip 4.This cavity 38 can be kept apart lug 7, reaches the effect of insulation.And when vibrations; Housing 1 is given insulating trip 4 with shock transfer earlier; Because insulating trip 4 centers are cavity 38, make insulating trip 4 deform, thereby can pass to insulated spacing collar 30 again behind the damping vibration; Prevented that further electric core 10 from being loose by shake, makes electric core 10 be fixed in the battery more reliably.
Shown in Fig. 1 to 5; On anodal seat 5, be provided with liquid injection hole 8; And on the central boss 32 of insulated spacing collar, be provided with and this liquid injection hole 8 corresponding centre bores 39; This centre bore 39 runs through whole central boss 32, makes to improve fluid injection speed in the center that can infiltrate into electric core 10 from the electrolyte of liquid injection hole 8 injections through this centre bore 39.Simultaneously, the center of plug 20 also can be provided with the centre bore 25 that runs through, and makes the electrolyte that injects from positive pole can flow to the insulated spacing collar 30 of negative pole through the centre bore 25 of plug, thereby further accelerates fluid injection speed.In addition; On plug centre bore 25 hole walls, also can offer a plurality of through hole (not shown)s, on the annular boss 37 of insulated spacing collar, offer a plurality of short slots, all can make the electrolyte of injection flow to rapidly electric core 10 around; From permeating to electric core 10, improved the speed of fluid injection greatly all around again.
Claims (6)
1. cylindrical battery; Comprise the lug of both positive and negative polarity seat on electric core, electrical connection electricity in-core positive/negative plate and the housing that is housed in roll coil of strip axis hole in the battery container and be arranged on electric core and utmost point seat between two insulated spacing collars; Said insulated spacing collar center is provided with prominent central boss to electric core spool hole, it is characterized in that said electric core spool is provided with plug in the hole; The central boss of said two insulated spacing collars is fastened together with the two ends of plug respectively, in the middle of two insulated spacing collars are clamped in electric core;
The positive and negative end sealing of housing is provided with cover plate, and cover plate is provided with centre bore, is provided with insulating trip and utmost point seat in the centre bore, and utmost point seat and insulating trip all extend to enclosure interior, and insulating trip comes utmost point seat and cover plate insulation;
Between insulated spacing collar and insulating trip, be provided with annular boss on the said insulated spacing collar, offer a plurality of short slots on the annular boss of insulated spacing collar;
Be provided with the centre bore that runs through in the said plug, offer a plurality of through holes on the plug centre bore hole wall.
2. according to the said cylindrical battery of claim 1, it is characterized in that the central boss of said insulated spacing collar and plug end link together through securing member, two insulated spacing collars that link together and said electric core two ends form interference fits.
3. according to the said cylindrical battery of claim 1; It is characterized in that; The central boss of said insulated spacing collar and plug end are fastened together through claw and the draw-in groove structure that cooperatively interacts, and two insulated spacing collars that link together and said electric core two ends form interference fits.
4. according to the said cylindrical battery of claim 3, it is characterized in that said central boss tail end is provided with counterbore, said counterbore wall is provided with inner groove, and said counterbore wall along the circumferential direction is divided into a plurality of parts by a plurality of breach; Said plug end is provided with the flange that is complementary with said inner groove, is provided with the outer groove that is complementary with said counterbore wall between said flange and the plug stage casing.
5. according to the said cylindrical battery of claim 3, it is characterized in that said plug end is provided with counterbore, said counterbore wall is provided with inner groove, and said counterbore wall along the circumferential direction is divided into a plurality of parts by a plurality of breach; The central boss tail end of said insulated spacing collar is provided with the flange that is complementary with said inner groove, is provided with the outer groove that is complementary with said counterbore wall between said flange and the central boss stage casing.
6. according to the said cylindrical battery of claim 1, it is characterized in that the central boss of said insulated spacing collar is provided with the centre bore that runs through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101236308A CN101399361B (en) | 2007-09-26 | 2007-09-26 | Cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101236308A CN101399361B (en) | 2007-09-26 | 2007-09-26 | Cylindrical battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101399361A CN101399361A (en) | 2009-04-01 |
| CN101399361B true CN101399361B (en) | 2012-07-25 |
Family
ID=40517728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101236308A Active CN101399361B (en) | 2007-09-26 | 2007-09-26 | Cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101399361B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201311942Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Circular insulating spacer ring and cylindrical lithium battery comprising same |
| CN101882686A (en) * | 2009-05-08 | 2010-11-10 | 深圳市比克电池有限公司 | Cylindrical cell |
| CN106159342A (en) * | 2016-08-29 | 2016-11-23 | 江苏天鹏电源有限公司 | A kind of lithium battery is used for pole piece insulating package structure |
| CN107086320B (en) * | 2017-04-13 | 2023-04-18 | 大连中比动力电池有限公司 | Lithium ion battery case, method for manufacturing same, and lithium ion battery |
| CN109659484A (en) * | 2017-10-12 | 2019-04-19 | 东莞市巨能电子科技有限公司 | A kind of lithium battery and preparation method thereof |
| CN113823874B (en) * | 2021-07-21 | 2023-10-31 | 星恒电源股份有限公司 | Cylindrical battery module convenient to recycle and recycling method |
| CN117256076A (en) * | 2022-01-14 | 2023-12-19 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric equipment and manufacturing method and equipment of battery cell |
| WO2023133851A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, and method and device for manufacturing battery cell |
| WO2024050946A1 (en) * | 2022-09-09 | 2024-03-14 | 湖北亿纬动力有限公司 | Battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030672U (en) * | 1987-09-01 | 1989-01-11 | 杨有建 | Push-button type combined pipe connection for space frame |
| US6811920B2 (en) * | 2002-04-19 | 2004-11-02 | Matsushita Electric Industrial Co., Ltd. | Cylindrical lithium ion secondary battery and fabrication method thereof |
| CN2864999Y (en) * | 2006-01-10 | 2007-01-31 | 周基平 | Insulated spacing collar of cylindrical lithium battery and battery within this spacing collar |
| CN2916944Y (en) * | 2006-07-12 | 2007-06-27 | 深圳市比克电池有限公司 | Cylindrical lithium ion battery |
-
2007
- 2007-09-26 CN CN2007101236308A patent/CN101399361B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030672U (en) * | 1987-09-01 | 1989-01-11 | 杨有建 | Push-button type combined pipe connection for space frame |
| US6811920B2 (en) * | 2002-04-19 | 2004-11-02 | Matsushita Electric Industrial Co., Ltd. | Cylindrical lithium ion secondary battery and fabrication method thereof |
| CN2864999Y (en) * | 2006-01-10 | 2007-01-31 | 周基平 | Insulated spacing collar of cylindrical lithium battery and battery within this spacing collar |
| CN2916944Y (en) * | 2006-07-12 | 2007-06-27 | 深圳市比克电池有限公司 | Cylindrical lithium ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101399361A (en) | 2009-04-01 |
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Effective date of registration: 20160824 Address after: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong Province, No. 6 building 518000 Patentee after: SHENZHEN BAK POWER BATTERY Co.,Ltd. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: SHENZHEN BAK BATTERY Co.,Ltd. |
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Effective date of registration: 20191022 Granted publication date: 20120725 |
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Date of cancellation: 20221022 Granted publication date: 20120725 |
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Effective date of registration: 20221022 Granted publication date: 20120725 |