CN103456914A - Battery provided with a safety snap device and convenient to weld - Google Patents
Battery provided with a safety snap device and convenient to weld Download PDFInfo
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- CN103456914A CN103456914A CN2013103939638A CN201310393963A CN103456914A CN 103456914 A CN103456914 A CN 103456914A CN 2013103939638 A CN2013103939638 A CN 2013103939638A CN 201310393963 A CN201310393963 A CN 201310393963A CN 103456914 A CN103456914 A CN 103456914A
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- battery
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- welded
- housing
- convenience
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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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Abstract
The invention discloses a battery provided with a safety snap device and convenient to weld. The battery comprises a shell, a core rod, a positive electrode strap and a negative electrode strap, wherein the top end of the shell is provided with a flanging which is extended in the shell and intersected to form an anti-explosion sheet, a negative electrode terminal is fixed at the bottom of the shell and is composed of at least two kinds of metal through bolt connection or tight fitting or friction welding to form a composite terminal, one end of the negative electrode terminal is connected with the negative electrode strap, and the other end of the negative electrode terminal stretches out of the bottom of the shell. According to the battery, the flanging on the battery shell forms the anti-explosion sheet, the independent safety snap device part in the prior art is removed due to the integration design of the battery shell and the anti-explosion sheet, while the anti-explosion function is ensured, the mechanical structure is simplified and the production cost is saved; the composite metal material is used as a negative electrode leading-out post, and the selected materials of the positive electrode leading-out post and the negative electrode leading-out post are the same, and therefore, the technology problem that the connection by an aluminum strip is difficult is solved and the advantage of convenience for production is achieved.
Description
[technical field]
The present invention relates to battery current techique field, particularly the battery of safe breaking device is welded and had to a kind of convenience.
[background technology]
In process of production, because the defect of technology controlling and process, after the use of certain hour, its electric conducting material can produce chemical reaction to battery, easily at inside battery, forms micro-short circuit, causes battery-heating, produces higher inner pressure of battery.Also have battery in use, overcharged because battery management system loses efficacy to cause, also can cause because inner pressure of battery raises and cause the serious consequence of battery explosion burning.
For this reason, the Chinese invention patent that row are ZL 201010220664.0 as the patent No. discloses a kind of explosion-proof device of power battery, solder joint separating action by tension board and bursting diaphragm is torn bursting diaphragm, it need be connected the positive terminal of battery core with aluminium strip while using as one of anode with this device derive end, once meet accident, the anode section will disconnect guaranteeing safety with external circuit, plays safety and breaks function.And in prior art, such device is all as parts independently, mechanical structure more complicated own, for electrokinetic cell, because charging or discharging current is larger, the aluminium strip be connected with positive terminal as battery core just becomes bottleneck.
In this simultaneously, seeing in the market more electrokinetic cell is the bolt conductive pole, positive pole is pure aluminum material, negative pole adopts copper or stainless steel, for the ease of realizing that the combination between battery and battery adopts safer, reliable, welding procedure easily, both positive and negative polarity conductive pole how to accomplish battery is that commaterial is key core.
[summary of the invention]
Purpose of the present invention solves the problems of the prior art exactly, proposes the battery that safe breaking device was welded and had to a kind of convenience, when can improve battery safety, can simplify mechanical structure again, convenient production and installation.
For achieving the above object, the present invention proposes a kind of convenience and weld and have the battery of safe breaking device, comprise housing, battery core, anodal conflux disk and negative pole conflux disk, described battery core is arranged at the inside of housing, anodal conflux disk and negative pole conflux disk lay respectively at the two ends of battery core, be provided with positive terminal in described anodal conflux disk, positive terminal adopts the pure aluminum metal material to make, be provided with negative terminal on the negative pole conflux disk, the housing top is provided with flange, flange joins and forms burst disk in extending in housing, described burst disk is connected with anodal conflux disk, negative terminal is fixed on housing bottom, described negative terminal adopts and is bolted by least 2 kinds of metals, cross the composite terminal that tight fit or friction are welded to form, one end of negative terminal is connected with the negative pole conflux disk, the other end of negative terminal stretches out from housing bottom.
As preferably, the bottom of described burst disk is provided with pad, and burst disk is welded on anodal conflux disk by pad, makes burst disk in running order.
As preferably, described anodal conflux disk center is provided with projection, and projection is welded and fixed with pad, and the structural design of projection and pad, make anodal conflux disk be connected with burst disk more closely and reach reliably.
As preferably, described welding adopts laser welding, ultrasonic bonding or electron beam welding.
As preferably, be provided with the insulation retainer plate between described anodal conflux disk and burst disk, anodal conflux disk protrusions is connected with burst disk after passing the insulation retainer plate, and insulation retainer plate surrounding embeds in the enclosure, for anodal conflux disk, has position-limiting action.
As preferably, described burst disk is the bowl-shape of umbilicate type in enclosure interior, and bowl structure is conducive to reduce the technology difficulty that shell drawn or punching press form flange.
As preferably, the bottom of burst disk is a plane, and the sidewall of burst disk, in arc transition is connected to housing, has improved explosion-proof effect and the explosion-proof sensitivity of burst disk.
As preferably, the thickness of described burst disk bottom is less than the thickness of sidewall, reduces the difficulty of burst disk moulding process, improves explosion-proof sensitivity.
As preferably, described negative terminal comprises that connector and negative pole conduction draws post, connector is connected with the negative pole conflux disk, the negative pole conduction is drawn post and is fixed in housing, connector is made by one or more materials of copper, steel or nickel metal, the negative pole conduction is drawn post and is made by the pure aluminum metal material, solves the inconsistent problem that causes being difficult to carry out welding processing of positive and negative terminal material in the past.
As preferably, the negative pole of described negative terminal conduction is drawn in post and is stretched out from housing bottom.
Beneficial effect of the present invention: by the flange on battery case, form burst disk, the integrated design of this battery case and burst disk, independently safe breaking device parts have been saved in the past, simplified mechanical structure when guaranteeing explosion prevention function, saved production cost, the composite material of usining is drawn post as negative pole, makes the selection of material can accomplish that positive and negative electrode is drawn post identical, solved and be difficult to the technique difficult problem connected with aluminium strip, there is convenient production.
Feature of the present invention and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A place enlarged drawing of Fig. 1;
Fig. 3 is the A place enlarged drawing after the present invention breaks.
In figure: 1-housing, 2-battery core, the anodal conflux disk of 3-, 4-negative pole conflux disk, 5-positive terminal, 6-negative terminal, 7-flange, 8-burst disk, 9-pad, 10-projection, 11-insulation retainer plate, 12-connector, 13-negative pole conduction are drawn post.
[embodiment]
Consult Fig. 1, Fig. 2 and Fig. 3, the present invention includes housing 1, battery core 2, anodal conflux disk 3 and negative pole conflux disk 4, described battery core 2 is arranged at the inside of housing 1, anodal conflux disk 3 and negative pole conflux disk 4 lay respectively at the two ends of battery core 2, described anodal conflux disk 3 centers are provided with positive terminal 5, positive terminal 5 adopts the pure aluminum metal material make and directly as positive pole, draw post, negative pole conflux disk 4 centers are provided with negative terminal 6, housing 1 top is provided with flange 7, flange 7 forms burst disk 8 through extending in the interior handing-over of housing 1, described burst disk 8 is connected with anodal conflux disk 3, negative terminal 6 is fixed on housing 1 bottom, negative terminal 6 adopts the copper aluminium composite terminal be welded to form by friction by aluminium and copper metal, this negative terminal 6 comprises that connector 12 and negative pole conduction draws post 13, connector 12 is connected with negative pole conflux disk 4, connector 12 is made by the copper metal material, the negative pole conduction is drawn post 13 and is made by the pure aluminum metal material, the negative pole conduction of negative terminal 6 is drawn in post 13 and is stretched out from housing 1 bottom, the bottom of this burst disk 8 is provided with pad 9, and anodal conflux disk 3 centers are provided with projection 10, and burst disk 8 is welded on by pad 9 on the projection 10 of anodal conflux disk 3, and solder technology adopts laser welding.Be provided with insulation retainer plate 11 between anodal conflux disk 3 and burst disk 8, anodal conflux disk 3 protrusions 10 are connected with burst disk 8 through insulation retainer plate 11 is rear, the edge of insulation retainer plate 11 embeds and is fixed in housing 1, and the retainer plate 11 that now insulate has spacing effect for anodal conflux disk 3.Being shaped as of this burst disk 8 is the bowl-shape of umbilicate type, the bottom of burst disk 8 is a plane, the sidewall of burst disk 8 is in arc transition is connected to housing 1, the thickness of described burst disk 8 bottoms is less than the thickness of sidewall, and bowl structure is conducive to reduce the technology difficulty of shell drawn or punching press formation flange.
Operation principle of the present invention: battery is in normal operation (as Fig. 1, shown in Fig. 2), burst disk 8 by flange 7 through extending to form is the bowl-shape of matrix, when inside battery fault or battery overcharge, continuous increase along with inner pressure of battery, when internal pressure reaches set point, the part of burst disk 8 bottom indents is under the effect of interior pressure, outwards instead protrude, because insulation retainer plate 11 is set between anodal conflux disk 4 and burst disk 8, this insulation retainer plate 11 has position-limiting action for anodal conflux disk 4, when burst disk 8 anti-protrusion, the bottom of burst disk 8 has an active force outward for pad, along with active force is increasing, the projection 10 of anodal conflux disk 4 and the pad 9 between burst disk 3 will disconnect (as shown in Figure 3), reach the function that safety is broken, battery container 1 and the integrated design of burst disk 3, independently safe breaking device parts have been saved in the past, saved production cost, the material that the copper aluminum metal of usining is welded is as negative terminal 6, in negative terminal 6, by the metal connector 12 of copper, with negative pole conflux disk 4, be connected, the negative pole conduction of being made by pure aluminum metal is drawn post 13 and is fixed in housing 1 and stretches out from housing bottom, therefore just accomplished, negative pole is drawn post and is all aluminum metallic material, solve battery in the past and be difficult to the technique difficult problem connected with aluminium strip, there is convenient production.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (10)
1. the battery of safe breaking device is welded and had to a convenience, comprise housing (1), battery core (2), anodal conflux disk (3) and negative pole conflux disk (4), described battery core (2) is arranged at the inside of housing (1), anodal conflux disk (3) and negative pole conflux disk (4) lay respectively at the two ends of battery core (2), be provided with positive terminal (5) on described anodal conflux disk (3), positive terminal (5) adopts the pure aluminum metal material to make, be provided with negative terminal (6) on negative pole conflux disk (4), it is characterized in that: housing (1) top is provided with flange (7), flange (7) joins and forms burst disk (8) in extending in housing (1), described burst disk (8) is connected with anodal conflux disk (3), negative terminal (6) is fixed on housing (1) bottom, described negative terminal (6) adopts and is bolted by least 2 kinds of metals, cross the composite terminal that tight fit or friction are welded to form, one end of negative terminal (6) is connected with negative pole conflux disk (4), the other end of negative terminal (6) stretches out from housing (1) bottom.
2. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 1, it is characterized in that: the bottom of described burst disk (8) is provided with pad (9), and burst disk (8) is welded on anodal conflux disk (3) by pad (9).
3. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 1, it is characterized in that: described anodal conflux disk (3) center is provided with projection (10), and described projection (10) is welded and fixed with pad (9).
4. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 2 or claim 3, it is characterized in that: described welding adopts laser welding, ultrasonic bonding or electron beam welding.
5. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 1, it is characterized in that: between described anodal conflux disk (3) and burst disk (8), be provided with retainer plate (11).
6. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 1, it is characterized in that: described burst disk (8) is the bowl-shape of umbilicate type in housing (1) inside.
7. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 6, it is characterized in that: the bottom of burst disk (8) is a plane, and the sidewall of burst disk (8) is in arc transition is connected to housing (1).
8. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 7, it is characterized in that: the thickness of described burst disk (8) bottom is less than the thickness of sidewall.
9. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 1, it is characterized in that: described negative terminal (6) comprises that connector (12) and negative pole conduction draws post (13), connector (12) is connected with negative pole conflux disk (4), the negative pole conduction is drawn post (13) and is fixed in housing (1), connector (12) one or more materials in copper, steel or nickel are made, and the negative pole conduction is drawn post (13) and made by pure aluminum material.
10. the battery of safe breaking device is welded and had to a kind of convenience as claimed in claim 9, it is characterized in that: the negative pole conduction of described negative terminal (6) is drawn in post (13) and is stretched out from housing (1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393963.8A CN103456914B (en) | 2013-09-02 | 2013-09-02 | The battery of safe breaking device is welded and had to a kind of convenience |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393963.8A CN103456914B (en) | 2013-09-02 | 2013-09-02 | The battery of safe breaking device is welded and had to a kind of convenience |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103456914A true CN103456914A (en) | 2013-12-18 |
| CN103456914B CN103456914B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310393963.8A Active CN103456914B (en) | 2013-09-02 | 2013-09-02 | The battery of safe breaking device is welded and had to a kind of convenience |
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| Country | Link |
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| CN (1) | CN103456914B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711361A (en) * | 2017-01-20 | 2017-05-24 | 池州市骏智机电科技有限公司 | Top cover plate for lithium power battery |
| CN107994197A (en) * | 2017-11-24 | 2018-05-04 | 晶丰电子封装材料（武汉）有限公司 | A kind of connection structure and the connection method of pillar rechargeable battery and pedestal |
| CN112803115A (en) * | 2020-12-24 | 2021-05-14 | 东莞市振华新能源科技有限公司 | Lithium ion battery steel shell and method for improving liquid injection efficiency of steel shell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201069792Y (en) * | 2007-08-31 | 2008-06-04 | 王文林 | Chargeable battery diplex explosion-prevention device |
| CN202905861U (en) * | 2012-11-06 | 2013-04-24 | 徐敖奎 | High power lithium battery |
| CN103165851A (en) * | 2011-12-14 | 2013-06-19 | 比亚迪股份有限公司 | Battery terminal, battery cover plate component, single batteries and battery pack |
| CN203423228U (en) * | 2013-09-02 | 2014-02-05 | 徐敖奎 | Battery with convenience in welding and with safety pull-off device |
-
2013
- 2013-09-02 CN CN201310393963.8A patent/CN103456914B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201069792Y (en) * | 2007-08-31 | 2008-06-04 | 王文林 | Chargeable battery diplex explosion-prevention device |
| CN103165851A (en) * | 2011-12-14 | 2013-06-19 | 比亚迪股份有限公司 | Battery terminal, battery cover plate component, single batteries and battery pack |
| CN202905861U (en) * | 2012-11-06 | 2013-04-24 | 徐敖奎 | High power lithium battery |
| CN203423228U (en) * | 2013-09-02 | 2014-02-05 | 徐敖奎 | Battery with convenience in welding and with safety pull-off device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711361A (en) * | 2017-01-20 | 2017-05-24 | 池州市骏智机电科技有限公司 | Top cover plate for lithium power battery |
| CN107994197A (en) * | 2017-11-24 | 2018-05-04 | 晶丰电子封装材料（武汉）有限公司 | A kind of connection structure and the connection method of pillar rechargeable battery and pedestal |
| CN112803115A (en) * | 2020-12-24 | 2021-05-14 | 东莞市振华新能源科技有限公司 | Lithium ion battery steel shell and method for improving liquid injection efficiency of steel shell |
| CN112803115B (en) * | 2020-12-24 | 2022-06-24 | 东莞市振华新能源科技有限公司 | Lithium ion battery steel shell and method for improving liquid injection efficiency of steel shell |
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| Publication number | Publication date |
|---|---|
| CN103456914B (en) | 2016-05-18 |
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