CN103682184A - Power battery cover plate - Google Patents
Power battery cover plate Download PDFInfo
- Publication number
- CN103682184A CN103682184A CN201310731541.7A CN201310731541A CN103682184A CN 103682184 A CN103682184 A CN 103682184A CN 201310731541 A CN201310731541 A CN 201310731541A CN 103682184 A CN103682184 A CN 103682184A
- Authority
- CN
- China
- Prior art keywords
- power battery
- cover plate
- substrate
- positive terminal
- riveted joint
- 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.)
- Pending
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Classifications
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- 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 of a single cell or a single battery
- H01M50/147—Lids or covers
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- 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 of a single cell or a single battery
- H01M50/172—Arrangements of electric connectors penetrating the casing
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- 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
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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
Abstract
The invention relates to power batteries, and discloses a power battery cover plate, which includes a base plate, an anode pole and a cathode pole, wherein two pole holes used for penetrating through the anode pole and the cathode pole respectively are formed in the base plate; the anode pole or the cathode pole penetrates through the end part of the base plate and is respectively riveted to one end of an anode riveting pressing block or one end of a cathode riveting pressing block; an anode connecting bolt is arranged at the other end of the anode riveting pressing block; a cathode connecting blot is arranged at the other end of the cathode riveting pressing block. The invention has the advantages that the power battery cover plate facilitates battery connection and improves safety of batteries.
Description
Technical field
The present invention relates to electrokinetic cell, especially relate to a kind of cover plate of power battery that facilitates battery to connect and improve battery security.
Background technology
Electrokinetic cell is the important component part of new-energy automobile, electrokinetic cell is being kept the development of new-energy automobile in check, thereby, the safety of battery and Practical Performance are its particularly important performance parameters, and the riveted joint effect of cover plate of power battery emphasis wherein just, good riveted joint effect can increase the practicality such as convenient and swift that the security performance of battery and battery are assembled into module, and the riveting parts of prior art is also being difficult to reach ideal effect aspect cell safety and monocell connection.
Summary of the invention
For solving the problem of existing battery cover board, the object of the invention is to provide a kind of cover plate of power battery that facilitates battery to connect and improve battery security.
The present invention realizes by following technical measures, a kind of cover plate of power battery, include substrate, positive terminal and negative terminal, on described substrate, be provided with two pole column holes that are respectively used to through positive terminal and negative terminal, the end that described positive terminal or negative terminal pass substrate is riveted on respectively on one end of anodal riveted joint briquetting or negative pole riveted joint briquetting; On the other end of described anodal riveted joint briquetting, be provided with anodal connecting bolt, on the other end of described negative pole riveted joint briquetting, be provided with negative pole connecting bolt.
As a kind of optimal way, described positive terminal and negative terminal include supporting plate and are fixed on the cylinder at splint upper surface center, described splint upper surface is provided with at least two supporting plate blind holes, surface corresponding with supporting plate blind hole on described substrate is provided with substrate blind hole, and supporting plate blind hole and the space between substrate blind hole of described correspondence are inlaid with a ceramic cylinder.
As a kind of optimal way, the upper surface of base plate on described two pole column hole limits is respectively arranged with step cutting pattern.
As a kind of optimal way, described positive terminal and negative terminal are arranged with annular pottery, in the following embedding step cutting pattern of described annular pottery.
As a kind of optimal way, described two pole column holes upper surface of base plate around is also respectively arranged with some circular blind holes, described positive terminal and negative terminal are provided with the plastic cement pad that surrounds anodal riveted joint briquetting or negative pole riveted joint briquetting around, described plastic cement pad below is provided with some salient points, and described salient point cooperation is placed in circular blind hole.
As a kind of optimal way, on described substrate, be also provided with explosion-protection equipment, described explosion-protection equipment includes and is arranged on explosionproof hole on substrate, is arranged on the burst disk in explosionproof hole, the burst disk paster that is arranged on the burst disk step on explosionproof hole and covers burst disk top.
As a kind of optimal way, on described substrate, liquid injection hole is set.
As a kind of optimal way, between the supporting plate of described base lower surface and positive terminal and the supporting plate of negative terminal, be provided with insulation lower gasket.
As a kind of optimal way, between the supporting plate of described base lower surface and positive terminal or the supporting plate of negative terminal, be provided with the seal washer being set in outside positive terminal or negative terminal.
The present invention adds on pressing plate and conducts electricity the connecting bolt of use in riveted joint in riveted joint, the outside of battery connects can adopt laser welding and two kinds of modes of bolted simultaneously, can effectively improve the reliability of connection, greatly improve convenience and fail safe that electrokinetic cell connects, the pole column hole of connecting bolt and riveted joint is not on same axis simultaneously, even if twisting connecting bolt, also can not have influence on the sealing of battery, thereby further strengthen the fail safe of battery like this.The present invention also can be provided with some substrate blind holes around at the pole column hole of base lower surface, and is provided with corresponding supporting plate blind hole by the splint upper surface at pole, and ceramic embedded cylinder, for increasing the spline moment of torsion of pole, thereby strengthens riveted joint air-tightness betwixt.
Accompanying drawing explanation
Fig. 1 is the vertical view of the invention process spr substrate;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the upward view of the invention process spr substrate;
Fig. 5 is the vertical view of the embodiment of the present invention;
Fig. 6 is the C-C cutaway view of Fig. 5;
Fig. 7 is the structural representation of embodiment of the present invention insulation lower gasket;
Fig. 8 is the structural representation of embodiment of the present invention positive terminal.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is described in further detail.
A kind of cover plate of power battery of the present embodiment, please refer to Fig. 1 to Fig. 6, a kind of cover plate of power battery, include substrate 1, positive terminal 4 and negative terminal 7, on described substrate 1, be provided with two pole column holes 46 and 72 that are respectively used to through positive terminal 4 and negative terminal 7, the end that described positive terminal 4 or negative terminal 7 pass substrate 1 is riveted on respectively on one end of anodal riveted joint briquetting 41 or negative pole riveted joint briquetting 71; On the other end of described anodal riveted joint briquetting 41, be provided with anodal connecting bolt 43, on the other end of described negative pole riveted joint briquetting 71, be provided with negative pole connecting bolt 73.In the present embodiment.Positive terminal 4 is to form by aluminium is machined, negative terminal 7 is to form by copper material is machined, anodal riveted joint briquetting 41 or negative pole riveted joint briquetting 71 can adopt aluminium material, and anodal connecting bolt 43 and negative pole connecting bolt 73 are to adopt that stainless steel is machined to be formed.
In riveted joint, on positive pole riveted joint briquetting 41 or negative pole riveted joint briquetting 71, add and conduct electricity anodal connecting bolt 43 or the negative pole connecting bolt 73 of use, the outside of battery connects can adopt laser welding and two kinds of modes of bolted simultaneously, can effectively improve the reliability of connection, greatly improve convenience and fail safe that electrokinetic cell connects, the pole column hole 46,72 of connecting bolt 43,73 and riveted joint is not on same axis simultaneously, even if twist like this connecting bolt 43,73, also can not have influence on the sealing of battery, thereby further strengthen the fail safe of battery.
The cover plate of power battery of the present embodiment, please refer to accompanying drawing 2 to Fig. 4 and Fig. 6, on the basis of previous technique scheme, can be specifically, positive terminal 4 and negative terminal 7 include supporting plate and are fixed on the cylinder at splint upper surface center, splint upper surface is provided with at least two supporting plate blind holes 48, surface corresponding with supporting plate blind hole 48 on described substrate 1 is provided with substrate blind hole 21, and the supporting plate blind hole 48 of described correspondence and the space between substrate blind hole 21 are inlaid with a ceramic cylinder 2.Pole column hole at substrate 1 lower surface is provided with some substrate blind holes 21 around, and is provided with corresponding supporting plate blind hole 48 by the splint upper surface at pole, and ceramic embedded cylinder 2, for increasing the spline moment of torsion of pole, thereby strengthens riveted joint air-tightness betwixt.In the present embodiment, ceramic cylinder 2 is to form through high temperature sintering with alundum (Al2O3).
The cover plate of power battery of the present embodiment, please refer to Fig. 2, on the basis of previous technique scheme, can be specifically, and substrate 1 upper surface on two pole column hole limits 46,72 is respectively arranged with step cutting pattern 45.
The cover plate of power battery of the present embodiment, please refer to Fig. 6, on the basis of previous technique scheme, can be specifically, and positive terminal 4 and negative terminal 7 are arranged with annular pottery 42, in the following embedding step cutting pattern 45 of described annular pottery 42.In the present embodiment, annular pottery 42 is to form through high temperature sintering with alundum (Al2O3).
The cover plate of power battery of the present embodiment, please refer to Fig. 6, on the basis of previous technique scheme, can be specifically, substrate 1 upper surface around two pole column holes 46,72 is also respectively arranged with some circular blind holes 47, described positive terminal 4 and negative terminal 7 are provided with the plastic cement pad 44 or 74 that surrounds anodal riveted joint briquetting 41 or negative pole riveted joint briquetting 71 around, described plastic cement pad 44 and 74 belows are provided with some salient points, and described salient point cooperation is placed in circular blind hole 47.In the present embodiment, plastic cement pad the 44, the 74th, injection molded by plastic material process.。
The cover plate of power battery of the present embodiment, please refer to Fig. 2, Fig. 4 and Fig. 6, on the basis of previous technique scheme, can be specifically, on substrate 1, be also provided with explosion-protection equipment, explosion-protection equipment can include the explosionproof hole 62 that is arranged on substrate 1 center, be arranged on the burst disk in explosionproof hole 62, be arranged on the burst disk step 63 on explosionproof hole 62, and the burst disk paster 61 that covers burst disk 6 tops.In the present embodiment, burst disk 6 is to be stamped to form with aluminium.Burst disk paster 61 use plastic rubber materials cut and form.
The cover plate of power battery of the present embodiment, please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 5 and Fig. 6, on the basis of previous technique scheme, can be specifically, and liquid injection hole 8 is set on substrate 1.
The cover plate of power battery of the present embodiment, please refer to Fig. 1, on the basis of previous technique scheme, can be specifically, is provided with insulation lower gasket 5 between the supporting plate of substrate 1 lower surface and positive terminal 4 and the supporting plate of negative terminal 7.In the present embodiment, insulation lower gasket 5 is through injection molded with plastic material.
The cover plate of power battery of the present embodiment, please refer to Fig. 5 and Fig. 6, on the basis of previous technique scheme, can be specifically, is provided with the seal washer 3 being set in outside positive terminal 4 or negative terminal 7 between substrate 1 lower surface and the supporting plate of positive terminal or the supporting plate of negative terminal.In the present embodiment, seal washer 3 is to be formed through injection molding by corrosion resistant temperature-resistant material.
A concrete execution mode, substrate 1 is after punch process moulding, and rupture pressure disc 6, and is stacked with the good insulation lower gasket 5 of injection molding through laser welding with substrate 1.Connecting bolt 43,73 is through riveted joint briquetting 41,71.Positive terminal 4 and negative terminal 7 be respectively through injection moulding seal washer 3, and pack ceramic cylinder 2 into supporting plate blind hole 48, then pass between the substrate 1 folded, insulation lower gasket 5, then through annular pottery 42, anodal plastic cement pad 44, negative pole plastic cement pad 71.With riveted joint briquetting 41, the 71 covers riveted joint later of loading onto connecting bolt 43,73, make the completed power battery cover board for whole battery.
Because the riveted joint briquetting surface of prior art is plane, can only carry out outside by laser welding connects, and it is directly inadequate with cover plate rivet force and the spline moment of torsion of bolt riveted joint, the present invention considers fully the advantage and defect of two kinds of modes when design, after adopting riveted joint separately, on riveted joint briquetting, increase a connecting bolt is set, can meet two kinds of different connected modes simultaneously, and effectively guarantee joint efficiency and the reliability between battery.
The invention solves when power cover plate is threaded connection and turn round hypodynamic problem, and strengthened riveted joint air-tightness, make convenient and fast connection between battery, fail safe simultaneously is also improved.Can make the quick and stable development of electrokinetic cell industry, be beneficial to producing by batch of electrokinetic cell, supply the demand of electric automobile, so just can better realize practical value and the economic worth of cover plate of power battery of the present invention.
More than that cover plate of power battery of the present invention is set forth; be used for helping to understand the present invention; but embodiments of the present invention are not restricted to the described embodiments; anyly do not deviate from the change done under the principle of the invention, modification, substitute, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (9)
1. a cover plate of power battery, it is characterized in that: include substrate, positive terminal and negative terminal, on described substrate, be provided with two pole column holes that are respectively used to through positive terminal and negative terminal, the end that described positive terminal or negative terminal pass substrate is riveted on respectively on one end of anodal riveted joint briquetting or negative pole riveted joint briquetting; On the other end of described anodal riveted joint briquetting, be provided with anodal connecting bolt, on the other end of described negative pole riveted joint briquetting, be provided with negative pole connecting bolt.
2. cover plate of power battery according to claim 1, it is characterized in that: described positive terminal and negative terminal include supporting plate and be fixed on the cylinder at splint upper surface center, described splint upper surface is provided with at least two supporting plate blind holes, surface corresponding with supporting plate blind hole on described substrate is provided with substrate blind hole, and supporting plate blind hole and the space between substrate blind hole of described correspondence are inlaid with a ceramic cylinder.
3. cover plate of power battery according to claim 1 and 2, is characterized in that: the upper surface of base plate on described two pole column hole limits is respectively arranged with step cutting pattern.
4. cover plate of power battery according to claim 3, is characterized in that: described positive terminal and negative terminal are arranged with annular pottery, in the following embedding step cutting pattern of described annular pottery.
5. cover plate of power battery according to claim 1, it is characterized in that: described two pole column holes upper surface of base plate around is also respectively arranged with some circular blind holes, described positive terminal and negative terminal are provided with the plastic cement pad that surrounds anodal riveted joint briquetting or negative pole riveted joint briquetting around, described plastic cement pad below is provided with some salient points, and described salient point cooperation is placed in circular blind hole.
6. cover plate of power battery according to claim 1, it is characterized in that: on described substrate, be also provided with explosion-protection equipment, described explosion-protection equipment includes and is arranged on explosionproof hole on substrate, be arranged on the burst disk in explosionproof hole, the burst disk paster that is arranged on the burst disk step on explosionproof hole and covers burst disk top.
7. cover plate of power battery according to claim 1, is characterized in that: on described substrate, liquid injection hole is set.
8. cover plate of power battery according to claim 1, is characterized in that: between the supporting plate of described base lower surface and positive terminal and the supporting plate of negative terminal, be provided with insulation lower gasket.
9. cover plate of power battery according to claim 1, is characterized in that: between the supporting plate of described base lower surface and positive terminal or the supporting plate of negative terminal, be provided with the seal washer being set in outside positive terminal or negative terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310731541.7A CN103682184A (en) | 2013-12-26 | 2013-12-26 | Power battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310731541.7A CN103682184A (en) | 2013-12-26 | 2013-12-26 | Power battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103682184A true CN103682184A (en) | 2014-03-26 |
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ID=50319040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310731541.7A Pending CN103682184A (en) | 2013-12-26 | 2013-12-26 | Power battery cover plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN103682184A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904257A (en) * | 2014-04-08 | 2014-07-02 | 深圳市科达利实业股份有限公司 | Power battery cover plate capable of resisting electrocorrosion |
| CN106684269A (en) * | 2017-01-19 | 2017-05-17 | 佛山市康荣精细陶瓷有限公司 | Cover plate structure for lithium battery and manufacturing method thereof |
| CN107331827A (en) * | 2017-07-28 | 2017-11-07 | 深圳市欣迪盟新能源科技股份有限公司 | A kind of battery cover plate structure |
| WO2017198136A1 (en) * | 2016-05-16 | 2017-11-23 | 宁德时代新能源科技股份有限公司 | Top cover of secondary battery |
| CN114247995A (en) * | 2021-12-31 | 2022-03-29 | 大族激光科技产业集团股份有限公司 | Battery bracket and laser welding method thereof |
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| CN101232082A (en) * | 2007-01-25 | 2008-07-30 | 深圳华粤宝电池有限公司 | Battery cover plate with new type structure and secondary battery thereof |
| CN202004055U (en) * | 2011-01-14 | 2011-10-05 | 深圳市科达利实业股份有限公司 | Novel sealing plate of high capacity power lithium battery |
| CN203150627U (en) * | 2013-01-18 | 2013-08-21 | 宁德新能源科技有限公司 | Power battery top cover and power battery containing top cover |
| CN103378321A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Cover plate component and battery with same |
| CN203746922U (en) * | 2013-12-26 | 2014-07-30 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
-
2013
- 2013-12-26 CN CN201310731541.7A patent/CN103682184A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101232082A (en) * | 2007-01-25 | 2008-07-30 | 深圳华粤宝电池有限公司 | Battery cover plate with new type structure and secondary battery thereof |
| CN202004055U (en) * | 2011-01-14 | 2011-10-05 | 深圳市科达利实业股份有限公司 | Novel sealing plate of high capacity power lithium battery |
| CN103378321A (en) * | 2012-04-20 | 2013-10-30 | 比亚迪股份有限公司 | Cover plate component and battery with same |
| CN203150627U (en) * | 2013-01-18 | 2013-08-21 | 宁德新能源科技有限公司 | Power battery top cover and power battery containing top cover |
| CN203746922U (en) * | 2013-12-26 | 2014-07-30 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904257A (en) * | 2014-04-08 | 2014-07-02 | 深圳市科达利实业股份有限公司 | Power battery cover plate capable of resisting electrocorrosion |
| WO2017198136A1 (en) * | 2016-05-16 | 2017-11-23 | 宁德时代新能源科技股份有限公司 | Top cover of secondary battery |
| CN106684269A (en) * | 2017-01-19 | 2017-05-17 | 佛山市康荣精细陶瓷有限公司 | Cover plate structure for lithium battery and manufacturing method thereof |
| CN107331827A (en) * | 2017-07-28 | 2017-11-07 | 深圳市欣迪盟新能源科技股份有限公司 | A kind of battery cover plate structure |
| CN114247995A (en) * | 2021-12-31 | 2022-03-29 | 大族激光科技产业集团股份有限公司 | Battery bracket and laser welding method thereof |
| CN114247995B (en) * | 2021-12-31 | 2023-12-12 | 大族激光科技产业集团股份有限公司 | Battery bracket and laser welding method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20140326 |