CN109888132A - A kind of automobile power cell cover board - Google Patents
A kind of automobile power cell cover board Download PDFInfo
- Publication number
- CN109888132A CN109888132A CN201910285677.7A CN201910285677A CN109888132A CN 109888132 A CN109888132 A CN 109888132A CN 201910285677 A CN201910285677 A CN 201910285677A CN 109888132 A CN109888132 A CN 109888132A
- Authority
- CN
- China
- Prior art keywords
- cover board
- connecting sheet
- matrix
- power cell
- automobile power
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- 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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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
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- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of automobile power cell cover boards.The technical scheme is that a kind of automobile power cell cover board, including the connecting sheet components for being provided with the cover board matrix of mounting hole and being arranged in mounting hole, the cover board matrix and connecting sheet components are that metal material is made, injection molding insulating seal is provided between the connecting sheet components and cover board matrix, the injection molding insulating seal includes several first disconnecting prevention structures for connecting cover plate matrix and connecting sheet components and for the second disconnecting prevention structure of connecting cover plate base bottom, the insulation positioning column abutted with connecting sheet components and cover board matrix is provided in first disconnecting prevention structure, the connecting sheet components include positive strap and negative straps.Scheme good airproof performance provided by the invention and simple and compact for structure.
Description
Technical field
The present invention relates to new energy car battery technical field, in particular to a kind of automobile power cell cover board.
Background technique
With worldwide energy crisis and climate warming, there is an urgent need to a kind of completely new energy for traffic and transport field
Mode, and lithium ion battery is because its is environmentally protective, the characteristics such as high-energy output cause the extensive concern of traffic and transport field, mesh
Before, the extensive research of application start of the relevant industries all to lithium ion battery in this field is with electric car in world wide
Technology maturation and it is improved day by day, the dream of electric car and hybrid vehicle Stepping into daily life has become possibility, and
Huge business opportunity is bred during electric car is universal.And the superiority and inferiority of vehicle-mounted great-capacity power battery performance directly affects
The overall performance of electric car.More stringent requirements are proposed for the vehicle-mounted power battery of electric car for this (for example to have higher
Safety, more excellent performance, weight is lighter).
Currently, the reliability of battery, safety be also technological difficulties in great-capacity power battery manufacturing process and
The high leakproofness of emphasis, especially battery in the production process, present high capacity cell are stringenter to battery air tightness requirement,
If battery capacity is high, inner pressure of battery is relatively high, so that the components of the assembly of battery are easy leakage or gas leakage, can give battery
It causes very big security risk and forms electrolyte volatilization, leads to battery performance life time decay.In addition, when lithium battery makes
With in the process, if battery electrode column and sealing ring tightness are bad, will be sucked in moisture and battery in air in battery
Electro-hydraulic mixing, or cause the electrolyte volatilization of inside battery is dry to form crystallization, so that battery performance and circulation will be will lead to
Life time decay, internal resistance increase, and influence lithium battery various parameters performance, eventually leading to battery can not continue to use, serious also
Cause the safety of battery.
In addition, its structure of existing battery cover board is more complicated, manufacturing process is complicated, higher cost.
Summary of the invention
In view of the deficienciess of the prior art, the main purpose of the present invention is to provide a kind of good airproof performance and structure it is simple
Compact cover plate of power battery.
To achieve the above object, the present invention provides the following technical scheme that a kind of automobile power cell cover board, including setting
The connecting sheet components for having the cover board matrix of mounting hole and being arranged in mounting hole, the cover board matrix and connecting sheet components are equal
It is made of metal material, injection molding insulating seal, the injection molding insulation is provided between the connecting sheet components and cover board matrix
Seal includes several first disconnecting prevention structures for connecting cover plate matrix and connecting sheet components and for connecting cover plate base
Second disconnecting prevention structure of body bottom is provided with the insulation abutted with connecting sheet components and cover board matrix in first disconnecting prevention structure
Positioning column, the connecting sheet components include positive strap and negative straps.
Preferably, first disconnecting prevention structure includes the location hole being arranged on injection molding insulating seal, and the insulation is fixed
Position column is arranged in location hole, and the upper and lower ends of the location hole are respectively arranged with the first lug boss that section is back taper, institute
Stating the section for being provided on cover board matrix and connecting sheet components and being correspondingly arranged with first lug boss is the first of back taper
Recessed groove.
Preferably, the injection molding insulating seal includes the supporting part that cover board base bottom is arranged in, second anticreep
Structure includes that the section being arranged on supporting part is the second lug boss of back taper, and the bottom of the cover board matrix is provided with and institute
The second recessed groove that the section that the second lug boss is correspondingly arranged is back taper is stated, second lug boss and the second recessed groove are square
Shape.
Preferably, the cover board matrix and the making material of positive strap are aluminium or aluminium alloy, the cathode connection
The making material of piece is the compound of copper and aluminium or aluminium alloy.
Preferably, inwardly, aluminum or aluminum alloy end is outwardly at the copper end of the negative straps.
Preferably, the insulation positioning column is ceramics pole.
Preferably, at least provided with two the first disconnecting prevention structures on the injection molding insulating seal.
Preferably, the part that the cover board matrix and connecting sheet components are contacted with injection molding insulating seal is provided at surface
Manage layer.
The present invention has the following advantages compared with the prior art, it is characterized in that due to connecting sheet components and cover board matrix it
Between being connected and sealed of being formed is molded by resin, which can allow connecting sheet components and cover board matrix to pass through resin injection molding
Close connection, thus there is good sealing performance, security performance is high, extends the useful life of sealing, while also extending
The service life of battery；Be molded simultaneously insulating seal include for connecting cover plate matrix and connecting sheet components several first
Disconnecting prevention structure and the second disconnecting prevention structure for connecting cover plate base bottom, the first disconnecting prevention structure and the second disconnecting prevention structure make
Bonding strength between connecting sheet components and cover board matrix obtains very big raising；It is provided with and connects in first disconnecting prevention structure
The insulation positioning column that piece component and cover board matrix abut, the effect of the positioning column that insulate enhancing structure intensity and can assemble
To playing a supporting role in the pressing working procedure of connecting sheet components in journey, connecting sheet components is avoided to deform and collapse.In addition, using this
The cover plate of power battery of kind of connection type, connecting sheet components are used as battery electrode column, for late monomer battery in series and parallel in groups
PACK eliminates the presence of this bulk metal of pole contained in most of covering plate structure design at present, makes the entirety of cover board
Weight is obviously reduced, and then reduces the quality of battery core significantly, improves the energy density of single battery well, is subsequent
The quality that battery core forms PACK packet in series and parallel also greatly reduces, the hair for meeting the lightweight of current driving force battery, improving energy density
Open up direction.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram one of automobile power cell cover board of the invention；
Fig. 2 is a kind of overall structure diagram two of automobile power cell cover board of the invention；
Fig. 3 is the structural schematic diagram that a kind of negative straps of automobile power cell cover board of the invention are separated with battery cover board；
Fig. 4 is a kind of front view of automobile power cell cover board of the invention；
Fig. 5 is the schematic cross-section of the part A-A in Fig. 4；
Fig. 6 is a kind of part configuration schematic diagram of automobile power cell cover board of the invention.
In figure: 1, cover board matrix；2, it is molded insulating seal；3, connecting sheet components；4, insulate positioning column；5, anode connection
Piece；6, negative straps；7, location hole；8, the first lug boss；9, the first recessed groove；10, supporting part；11, the second lug boss；
12, the second recessed groove；13, copper end；14, aluminum or aluminum alloy end.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, a kind of automobile power cell cover board, cover board matrix 1 and setting including being provided with mounting hole exist
Connecting sheet components 3 in mounting hole, the cover board matrix 1 and connecting sheet components 3 are that metal material is made, the connection sheet
Injection molding insulating seal 2 is provided between component 3 and cover board matrix 1, the injection molding insulating seal 2 includes being used for connecting cover plate
Second anticreep knot of the matrix 1 with several first disconnecting prevention structures of connecting sheet components 3 and for 1 bottom of connecting cover plate matrix
Structure is provided with the insulation positioning column 4 abutted with connecting sheet components 3 and cover board matrix 1, the connection in first disconnecting prevention structure
Piece component 3 includes positive strap 5 and negative straps 6.
A kind of automobile power cell cover board of the invention, it is characterized in that due between connecting sheet components 3 and cover board matrix 1
Being connected and sealed of being formed is molded by resin, which can allow connecting sheet components 3 and cover board matrix 1 to pass through resin injection molding
Close connection, thus there is good sealing performance, security performance is high, extends the useful life of sealing, while also extending
The service life of battery；Being molded insulating seal 2 simultaneously includes for several of connecting cover plate matrix 1 and connecting sheet components 3
First disconnecting prevention structure and the second disconnecting prevention structure for 1 bottom of connecting cover plate matrix, the first disconnecting prevention structure and the second anticreep knot
Structure makes the bonding strength between connecting sheet components 3 and cover board matrix 1 obtain very big raising；It is arranged in first disconnecting prevention structure
There is the insulation positioning column 4 abutted with connecting sheet components 3 and cover board matrix 1, the effect of insulation positioning column 4 being capable of enhancing structure intensity
And to playing a supporting role in the pressing working procedure of connecting sheet components 3 in assembling process, connecting sheet components 3 is avoided to deform and collapse
It falls into.In addition, using the cover plate of power battery of this connection type, connecting sheet components 3 are used as battery electrode column, for late monomer electricity
The series-parallel PACK in groups in pond eliminates depositing for this bulk metal of pole contained in most of covering plate structure design at present
The overall weight of cover board is obviously reduced, and then reduce the quality of battery core significantly, is improving single battery well
Energy density, the quality for forming PACK packet in series and parallel for subsequent battery core also greatly reduce, meet the lightweight of current driving force battery, mention
The developing direction of high-energy density.
Preferably, first disconnecting prevention structure includes the location hole 7 being arranged on injection molding insulating seal 2, the insulation
Positioning column 4 is arranged in location hole 7, and the upper and lower ends of the location hole 7 are respectively arranged with the first protrusion that section is back taper
Portion 8, it is back taper that the section being correspondingly arranged with first lug boss 8 is provided on the cover board matrix 1 and connecting sheet components 3
First recessed groove 9 of shape.Referring to attached drawing, the first lug boss 8 and the first recessed groove 9 are circle, and mutual cooperation can be played anti-
De- effect, the space occupied is small and enhances structural strength.
Preferably, supporting part 10 of the injection molding insulating seal 2 including 1 bottom of cover board matrix is arranged in, described second
Disconnecting prevention structure includes that the section being arranged on supporting part 10 is the second lug boss 11 of back taper, the bottom of the cover board matrix 1
It is provided with the second recessed groove 12 that the section being correspondingly arranged with second lug boss 11 is back taper, second lug boss 11
It is rectangle with the second recessed groove 12.Second lug boss 11 and the mutual cooperation of the second recessed groove 12 enable to injection molding insulating seal
2 with the good combination in bottom of cover board matrix 1 so that cover board matrix 1 will not fall off easily, the second lug boss 11 is recessed with second
Slot 12 is that rectangle is capable of increasing bonded area, is further ensured that connection structure intensity.
Preferably, the cover board matrix 1 and the making material of positive strap 5 are aluminium or aluminium alloy, and the cathode connects
The making material of contact pin 6 is the compound of copper and aluminium or aluminium alloy.Wherein copper aluminium is connected by friction welding.
Preferably, inwardly, aluminum or aluminum alloy end 14 is outwardly at the copper end 13 of the negative straps 6.Copper end 13 be inwardly for
Can carry out laser welding with battery roll core tab, aluminum or aluminum alloy end 14 be outwardly in order to later period battery in series and parallel in groups when with
External aluminium bus-bar is welded, and aluminium is chronically exposed to and is not easy to be oxidized in air, strong compared with the oxidation resistance of copper.
Preferably, the insulation positioning column 4 is ceramics pole.Ceramics pole has excellent insulation performance and hardness.
Preferably, at least provided with two the first disconnecting prevention structures on the injection molding insulating seal 2.Setting can make in this way
3 stress balance of insulating seal 2 and connecting sheet components must be molded.
Preferably, the part that the cover board matrix 1 and connecting sheet components 3 are contacted with injection molding insulating seal 2 is provided with table
Surface treatment layer.Setting can be improved the connectivity between cover board matrix 1 and connecting sheet components 3 and injection molding insulating seal 2 in this way
Energy.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of automobile power cell cover board, including the connection for being provided with the cover board matrix of mounting hole and being arranged in mounting hole
Piece component, the cover board matrix and connecting sheet components are that metal material is made, it is characterised in that: the connecting sheet components with
Be provided with injection molding insulating seal between cover board matrix, the injection molding insulating seal include for connecting cover plate matrix with connect
Several first disconnecting prevention structures of piece component and the second disconnecting prevention structure for connecting cover plate base bottom, first anticreep
The insulation positioning column abutted with connecting sheet components and cover board matrix is provided in structure, the connecting sheet components include anode connection
Piece and negative straps.
2. a kind of automobile power cell cover board according to claim 1, it is characterised in that: first disconnecting prevention structure includes
Location hole on injection molding insulating seal is set, and the insulation positioning column is arranged in location hole, above and below the location hole
Both ends are respectively arranged with the first lug boss that section is back taper, are provided on the cover board matrix and connecting sheet components and institute
State the first recessed groove that the section that the first lug boss is correspondingly arranged is back taper.
3. a kind of automobile power cell cover board according to claim 1, it is characterised in that: the injection molding insulating seal packet
The supporting part that cover board base bottom is set is included, second disconnecting prevention structure includes that the section being arranged on supporting part is back taper
The second lug boss, it is back taper that the bottom of the cover board matrix, which is provided with the section being correspondingly arranged with second lug boss,
Second recessed groove, second lug boss and the second recessed groove are rectangle.
4. a kind of automobile power cell cover board according to claim 1, it is characterised in that: the cover board matrix and anode are even
The making material of contact pin is that the making material of aluminium perhaps aluminium alloy negative straps is copper and aluminium or aluminium alloy are answered
It closes.
5. a kind of automobile power cell cover board according to claim 4, it is characterised in that: the copper end of the negative straps
Inwardly, aluminum or aluminum alloy end is outwardly.
6. a kind of automobile power cell cover board according to claim 1, it is characterised in that: the insulation positioning column is ceramics
Column.
7. a kind of automobile power cell cover board according to claim 1, it is characterised in that: on the injection molding insulating seal
At least provided with two the first disconnecting prevention structures.
8. a kind of automobile power cell cover board according to claim 1, it is characterised in that: the cover board matrix and connection sheet
The part that component is contacted with injection molding insulating seal is provided with surface-treated layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285677.7A CN109888132A (en) | 2019-04-10 | 2019-04-10 | A kind of automobile power cell cover board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285677.7A CN109888132A (en) | 2019-04-10 | 2019-04-10 | A kind of automobile power cell cover board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109888132A true CN109888132A (en) | 2019-06-14 |
Family
ID=66936814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910285677.7A Pending CN109888132A (en) | 2019-04-10 | 2019-04-10 | A kind of automobile power cell cover board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109888132A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151955A (en) * | 2020-02-03 | 2020-05-15 | 力神动力电池***有限公司 | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug |
| CN115347287A (en) * | 2022-09-02 | 2022-11-15 | 宁夏宝丰昱能科技有限公司 | Battery top cover, battery and battery manufacturing method |
| CN115513579A (en) * | 2022-10-21 | 2022-12-23 | 武汉中金泰富新能源科技有限公司 | Power battery cover plate and power battery |
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| CN202549944U (en) * | 2012-04-25 | 2012-11-21 | 王文林 | Insulated seal plastic structure of lithium battery cover plate |
| KR20150065064A (en) * | 2013-12-04 | 2015-06-12 | (주)영하이테크 | Insulating and sealing method of cap-plate and electrode of Cell assembly and Assembly of cap-plate and electrode |
| CN106505163A (en) * | 2016-11-30 | 2017-03-15 | 东莞塔菲尔新能源科技有限公司 | A kind of electrokinetic cell coping plate and the assembling structure of pole |
| CN207074669U (en) * | 2017-06-26 | 2018-03-06 | 湖南三迅新能源科技有限公司 | Battery cover board |
| CN108054306A (en) * | 2017-11-06 | 2018-05-18 | 惠州拓邦电气技术有限公司 | Cover plate of power battery, using the cover board power battery and produce cover board method |
| CN209496907U (en) * | 2019-04-10 | 2019-10-15 | 苏州美阅新能源有限公司 | A kind of automobile power cell cover board |
-
2019
- 2019-04-10 CN CN201910285677.7A patent/CN109888132A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202549944U (en) * | 2012-04-25 | 2012-11-21 | 王文林 | Insulated seal plastic structure of lithium battery cover plate |
| KR20150065064A (en) * | 2013-12-04 | 2015-06-12 | (주)영하이테크 | Insulating and sealing method of cap-plate and electrode of Cell assembly and Assembly of cap-plate and electrode |
| CN106505163A (en) * | 2016-11-30 | 2017-03-15 | 东莞塔菲尔新能源科技有限公司 | A kind of electrokinetic cell coping plate and the assembling structure of pole |
| CN207074669U (en) * | 2017-06-26 | 2018-03-06 | 湖南三迅新能源科技有限公司 | Battery cover board |
| CN108054306A (en) * | 2017-11-06 | 2018-05-18 | 惠州拓邦电气技术有限公司 | Cover plate of power battery, using the cover board power battery and produce cover board method |
| CN209496907U (en) * | 2019-04-10 | 2019-10-15 | 苏州美阅新能源有限公司 | A kind of automobile power cell cover board |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151955A (en) * | 2020-02-03 | 2020-05-15 | 力神动力电池***有限公司 | Welding and positioning tool for power battery cover plate connecting sheet and pole group pole lug |
| CN115347287A (en) * | 2022-09-02 | 2022-11-15 | 宁夏宝丰昱能科技有限公司 | Battery top cover, battery and battery manufacturing method |
| CN115347287B (en) * | 2022-09-02 | 2023-11-10 | 宁夏宝丰昱能科技有限公司 | Battery top cover, battery and battery manufacturing method |
| CN115513579A (en) * | 2022-10-21 | 2022-12-23 | 武汉中金泰富新能源科技有限公司 | Power battery cover plate and power battery |
| CN115513579B (en) * | 2022-10-21 | 2023-12-01 | 武汉中金泰富新能源科技有限公司 | Power battery cover plate and power battery |
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