CN104051682A - Power supply module of electrical vehicle and connection method - Google Patents
Power supply module of electrical vehicle and connection method Download PDFInfo
- Publication number
- CN104051682A CN104051682A CN201310077015.3A CN201310077015A CN104051682A CN 104051682 A CN104051682 A CN 104051682A CN 201310077015 A CN201310077015 A CN 201310077015A CN 104051682 A CN104051682 A CN 104051682A
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- Prior art keywords
- battery unit
- aluminium
- copper
- power supply
- fixed frame
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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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
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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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery 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
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of vehicle power supply, and particularly relates to a power supply module of an electrical vehicle and a connection method. The power supply module includes: a plurality of positive cell units, wherein each positive cell unit is provided with a fixing frame and two aluminium tabs which stretch out from one side edge of the fixing frame; a plurality of negative cell units which are arranged at intervals with the plurality of positive cell units, wherein each negative cell unit is provided with a fixing frame and two copper tabs which stretch out from one side edge of the fixing frame; and a plurality of busbars which are used for connecting the positive cell units with the negative cell units in series. Each aluminium tab of each positive cell unit and each adjacent copper tab of each adjacent negative cell unit are respectively welded to each busbar. The power supply module of the electrical vehicle has small contact impedance at a connecting position, is not easy to heat, is high in efficiency, is free from loosening during an operation process and is good in safety. The connection method of the power supply module of the electrical vehicle is safe and reliable.
Description
Technical field
The present invention relates to automobile power field of power supplies, especially a kind of electric car power supply module and method of attachment.
Background technology
Electric car power supply modularized design has become the inexorable trend of dynamic power system development; The disclosure of the invention of Chinese patent notification number CN102306717A a kind of lithium ion power battery used for electromobile bag and preparation method thereof, described lithium ion power battery used for electromobile bag, comprise power brick housing and the battery clad with power brick housing adaptation, be provided with battery module in described power brick enclosure interior; Between described battery module and described battery clad, be provided with insulating barrier I, and be provided with insulating barrier II between the just right power brick housing face of battery clad and battery module; Described power brick housing is provided with the fast connector being connected with battery module, is positioned at the mutual clamping of battery module that power brick enclosure interior is adjacent; This lithium ion power battery used for electromobile bag is electric car power supply module, described battery module is battery unit, at present the connected mode between the battery unit of electric car power supply module adopts the mechanical fasteners mode such as screw fastening, plug-in unit clamping more, and these connected modes exist junction contact impedance great Yi heating efficiency lower and in use because vibration can produce the loosening deficiency that has potential safety hazard; Therefore, design a kind of highlyer and in use can not produce loosening good electric car power supply module and the method for attachment of fail safe at the little heating efficiency that is difficult for of junction contact impedance, become problem demanding prompt solution.
Summary of the invention
The object of the invention is connection between the battery unit in order to overcome current electric car power supply module exists junction contact impedance great Yi heating efficiency lower and in use because vibration can produce the loosening deficiency that has potential safety hazard; , provide a kind of higher and in use can not produce loosening good electric car power supply module and the method for attachment of fail safe at the little heating efficiency that is difficult for of junction contact impedance.
Concrete technical scheme of the present invention is:
A kind of electric car power supply module, comprise the positive battery unit of two aluminium pole ears outside several sides that stretch out fixed frame with fixed frame and one end, the negative battery unit of two copper polar ears outside stretching out a side of fixed frame with fixed frame and one end with several of positive battery unit interval arrangement, for being connected in series several bus-bars of positive battery unit and negative battery unit; Aluminium pole ears of two adjacent positive battery unit and a copper polar ear of negative battery unit respectively with a bus-bar welding.This electric car power supply module is difficult for that heating efficiency is higher and in use can not produce loosening fail safe good junction contact impedance is little.
As preferably, a side outside of the fixed frame of described positive battery unit is inlaid with two metal support pieces; Aluminium pole ears comprises that two one end stretch out the aluminium lateral plate and the aluminium transverse slat of pushing down a metal support piece and being connected with one end of two aluminium lateral plates outside a side of fixed frame; One side outside of the fixed frame of negative battery unit is inlaid with two metal support pieces; Copper polar ear comprises that two one end stretch out the copper side plate and the copper transverse slat of pushing down a metal support piece and being connected with one end of two blocks of copper side plates outside a side of fixed frame.Aluminium pole ears or copper polar ear are pushed down metal support piece good rigidly.
As preferably, one end of described metal support piece is provided with arcwall face.Aluminium pole ears or copper polar ear and metal support piece good contact are also beneficial to welding.
As preferably, described bus-bar comprises aluminium flake and copper sheet; One end through-thickness of aluminium flake is provided with several grooves; One end through-thickness of copper sheet is provided with the projection that several mate with groove; Projection inserts in groove and solid-state diffusion connects; An aluminium transverse slat and a metal support piece laser welding of the aluminium flake of a bus-bar and a positive battery unit, a copper transverse slat and a metal support piece laser welding of the negative battery unit that copper sheet is adjacent with.It is a kind of advanced method of attachment linking together at solid-state lower material of the same race by two or xenogenesis that solid-state diffusion connects; This method both can connect mild steel, also can connect pottery, even can also connect the material that traditional welding method can not connect; It is little that the aluminium flake of bus-bar and copper sheet solid-state diffusion are connected contact impedance; Laser welding, laser beam can focus on very little region, the distortion that thermal impact causes and metallographic excursion are little, can can be placed on from the distance suitable with welded part by very near small-sized welded part and the laser of weld interval, when laser welding thin material or thin footpath wire rod, can not produce melt back as arc welding; Laser welding is not affected by or not magnetic field can aim at weldment accurately; After the aluminium flake of same type of material and aluminium transverse slat or copper sheet and copper transverse slat laser welding, contact impedance is little.
As preferably, the shape of cross section of described groove is triangle; The shape of cross section of projection is triangle.Be easy to making and the large bonding strength of contact-making surface high.
As preferably, an end face of described fixed frame is provided with several alignment pins; The other end of fixed frame is provided with several location holes that mate with alignment pin; The alignment pin of a fixed frame inserts in the location hole of another adjacent fixed frame.Location convenient for assembly.
The method of attachment of described electric car power supply module, the rear solid-state diffusion of the interior compression of groove that the projection of the copper sheet of (1) bus-bar inserts aluminium flake connects; (2) special fixture fixing is arranged and used to several positive battery unit and several negative battery unit intervals; (3) aluminium flake of bus-bar and copper sheet are placed on respectively on corresponding aluminium transverse slat and copper transverse slat and use special fixture fixing; (4) several good fixing positive battery unit and several negative battery unit and bus-bar are placed in the fully sheathed case with vacuum or negative pressure that only exposes welding position; (5) respectively corresponding aluminium flake, aluminium transverse slat and metal support piece are carried out to laser welding with laser and corresponding copper sheet, copper transverse slat and metal support piece carry out laser welding.Method of attachment is safe and reliable.
As preferably, the relevant parameter of the described laser for laser welding: power, 600W; Zlasing mode, pulse fiber; Focus on F-200mm; Angle of inclination, 10 °; When welded part material is aluminium, thickness of coating is 0.4mm, and aluminium pole ears thickness is 0.2mm, parameter setting when metal support piece thickness is 3mm: frequency 10Hz, pulsewidth 10m8, power 5.4kw (90%), defocus+8.5mm speed 7mm/s, subsidy gas N2; When welded part material is copper, thickness of coating is 0.4mm, and copper polar ear thickness is 0.2mm, parameter setting when metal support piece thickness is 3mm: frequency 10Hz, pulsewidth 10ms, power 5.4kW (90%), defocus+5.0mm speed 4mm/s, subsidy gas Air.It is better that the parameter setting of laser and laser welding is applicable to needs and the effect of electric car power supply module laser welding.
Compared with prior art, the invention has the beneficial effects as follows: one. this electric car power supply module is difficult for that heating efficiency is higher and in use can not produce loosening fail safe good junction contact impedance is little.Two. aluminium pole ears or copper polar ear are pushed down metal support piece good rigidly.Three. one end of metal support piece is provided with arcwall face, and aluminium pole ears or copper polar ear and metal support piece good contact are also beneficial to welding.Four. it is little that the aluminium flake of bus-bar and copper sheet solid-state diffusion are connected contact impedance; After the aluminium flake of same type of material and aluminium transverse slat or copper sheet and copper transverse slat laser welding, contact impedance is little.Five. the shape of cross section of groove and projection is triangle, is easy to making and the large bonding strength of contact-making surface high.Six. fixed frame is provided with alignment pin and location hole location convenient for assembly.Seven. the method for attachment of electric car power supply module is safe and reliable.Eight. it is better that the parameter setting of laser and laser welding is applicable to needs and the effect of electric car power supply module laser welding.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the structural representation of positive battery unit in Fig. 1;
Fig. 3 is the structural representation of bus-bar in Fig. 1.
In figure: metal support piece-1, arcwall face-11, aluminium pole ears-2, aluminium lateral plate-21, aluminium transverse slat-22, positive battery unit-3, copper polar ear-4, copper side plate-41, copper transverse slat-42, negative battery unit-5, bus-bar-6, aluminium flake-61, groove-62, copper sheet-63, projection-64, fixed frame-7, alignment pin-71, location hole-72, battery core-8.
Embodiment
Below in conjunction with shown in accompanying drawing, the present invention is described further.
As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3: a kind of electric car power supply module, comprises the positive battery unit 3 of five two aluminium pole ears 2 outside a side that stretches out fixed frame 7 with fixed frame 7 and one end, with the negative battery unit 5 of two copper polar ears 4 outside spaced five sides that stretch out fixed frame 7 with fixed frame 7 and one end in positive battery unit 3, for being connected in series nine bus-bars 6 of positive battery unit 3 and negative battery unit 5; Aluminium pole ears 2 of two adjacent positive battery unit 3 and a copper polar ear 4 of negative battery unit 5 weld with a bus-bar 6 respectively.One end face of described fixed frame 7 is provided with six alignment pins 71; The other end of fixed frame 7 has six location holes 72 with alignment pin 71 matched in clearance; The alignment pin 71 of a fixed frame 7 inserts in the location hole 72 of another adjacent fixed frame 7.Each positive battery unit 3 or negative battery unit 5 are made up of consistent battery core 8 parallel connections of one or more pieces polarity.
In the present embodiment, each positive battery unit 3 or negative battery unit 5 are made up of two consistent battery core 8 parallel connections of polarity; One side outside of the fixed frame 7 of described positive battery unit 3 is inlaid with two metal support pieces 1; One end of described metal support piece 1 has arcwall face 11; Aluminium pole ears 2 comprises that two one end stretch out the aluminium lateral plate 21 and the aluminium transverse slat 22 of pushing down a metal support piece 1 and being connected with one end of two aluminium lateral plates 21 outside a side of fixed frame 7; Two aluminium lateral plates 21 and aluminium transverse slat 22 one form; One side outside of the fixed frame 7 of negative battery unit 5 is inlaid with two metal support pieces 1; Copper polar ear 4 comprises that two one end stretch out the copper side plate 41 and the copper transverse slat 42 of pushing down a metal support piece 1 and being connected with one end of two blocks of copper side plates 41 outside a side of fixed frame 7; Two blocks of copper side plates 41 and copper transverse slat 42 one form; The material of fixed frame 7 is plastics, and metal support piece 1 is embedded in by injection mo(u)lding on a side of fixed frame 7; Described bus-bar 6 comprises aluminium flake 61 and copper sheet 63; One end through-thickness of aluminium flake 61 has two grooves 62; One end through-thickness of copper sheet 63 have two with the projection 64 of groove 62 interference fits; The shape of cross section of described groove 62 is triangle; The shape of cross section of projection 64 is triangle; Projection 64 inserts in groove 62 and solid-state diffusion connects; An aluminium transverse slat 22 and metal support piece 1 laser welding of the aluminium flake 61 of a bus-bar 6 and a positive battery unit 3, a copper transverse slat 42 and metal support piece 1 laser welding of the negative battery unit 5 that copper sheet 63 is adjacent with.
The method of attachment of described electric car power supply module, is characterized in that: after the projection 64 of the copper sheet 63 of (1) bus-bar 6 inserts the interior compression of groove 62 of aluminium flake 61, solid-state diffusion connects; (2) several positive battery unit 3 and several negative battery unit 5 are spaced and use special fixture fixing; (3) aluminium flake 61 of bus-bar 6 and copper sheet 63 are placed on respectively on corresponding aluminium transverse slat 22 and copper transverse slat 42 and use special fixture fixing; (4) several good fixing positive battery unit 3 are placed in the fully sheathed case with vacuum or negative pressure that only exposes welding position with several negative battery unit 5 and bus-bar 6; (5) respectively corresponding aluminium flake 61, aluminium transverse slat 22 and metal support piece 1 are carried out to laser welding with laser and corresponding copper sheet 63, copper transverse slat 42 and metal support piece 1 carry out laser welding.
The relevant parameter of the described laser for laser welding: power, 600W; Zlasing mode, pulse fiber; Focus on F-200mm; Angle of inclination, 10 °; When welded part material is aluminium, thickness of coating is 0.4mm, and aluminium pole ears 2 thickness are 0.2mm, parameter setting when metal support piece 1 thickness is 3mm: frequency 10Hz, pulsewidth 10ms, power 5.4kW (90%), defocus+8.5mm speed 7mm/s, subsidy gas N2; When welded part material is copper, thickness of coating is 0.4mm, and copper polar ear 4 thickness are 0.2mm, parameter setting when metal support piece 1 thickness is 3mm: frequency 10Hz, pulsewidth 10ms, power 5.4kW (90%), defocus+5.0mm speed 4mm/s, subsidy gas Air.
The invention has the beneficial effects as follows: this electric car power supply module is difficult for that heating efficiency is higher and in use can not produce loosening fail safe good junction contact impedance is little.Aluminium pole ears or copper polar ear are pushed down metal support piece good rigidly.One end of metal support piece is provided with arcwall face, and aluminium pole ears or copper polar ear and metal support piece good contact are also beneficial to welding.It is little that the aluminium flake of bus-bar and copper sheet solid-state diffusion are connected contact impedance; After the aluminium flake of same type of material and aluminium transverse slat or copper sheet and copper transverse slat laser welding, contact impedance is little.The shape of cross section of groove and projection is triangle, is easy to making and the large bonding strength of contact-making surface high.Fixed frame is provided with alignment pin and location hole location convenient for assembly.The method of attachment of electric car power supply module is safe and reliable.It is better that the parameter setting of laser and laser welding is applicable to needs and the effect of electric car power supply module laser welding.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All so apparent amendments of the technical staff to described field, within being included in the scope of this claim.
Claims (9)
1. an electric car power supply module, is characterized in that: several that comprise the positive battery unit of two aluminium pole ears outside several sides that stretch out fixed frame with fixed frame and one end, arrange with positive battery unit interval stretch out the negative battery unit of two copper polar ears outside a side of fixed frame with fixed frame and one end, for being connected in series several bus-bars of positive battery unit and negative battery unit; Aluminium pole ears of two adjacent positive battery unit and a copper polar ear of negative battery unit respectively with a bus-bar welding.
2. electric car power supply module according to claim 1, is characterized in that: a side outside of the fixed frame of described positive battery unit is inlaid with two metal support pieces; Aluminium pole ears comprises that two one end stretch out the aluminium lateral plate and the aluminium transverse slat of pushing down a metal support piece and being connected with one end of two aluminium lateral plates outside a side of fixed frame; One side outside of the fixed frame of negative battery unit is inlaid with two metal support pieces; Copper polar ear comprises that two one end stretch out the copper side plate and the copper transverse slat of pushing down a metal support piece and being connected with one end of two blocks of copper side plates outside a side of fixed frame.
3. electric car power supply module according to claim 2, is characterized in that: one end of described metal support piece is provided with arcwall face.
4. according to the electric car power supply module described in claim 2 or 3, it is characterized in that: described bus-bar comprises aluminium flake and copper sheet; One end through-thickness of aluminium flake is provided with several grooves; One end through-thickness of copper sheet is provided with the projection that several mate with groove; Projection inserts in groove and solid-state diffusion connects; An aluminium transverse slat and a metal support piece laser welding of the aluminium flake of a bus-bar and a positive battery unit, a copper transverse slat and a metal support piece laser welding of the negative battery unit that copper sheet is adjacent with.
5. electric car power supply module according to claim 4, is characterized in that: the shape of cross section of described groove is triangle; The shape of cross section of projection is triangle.
6. according to the electric car power supply module described in claim 1 or 2 or 3, it is characterized in that: an end face of described fixed frame is provided with several alignment pins; The other end of fixed frame is provided with several location holes that mate with alignment pin; The alignment pin of a fixed frame inserts in the location hole of another adjacent fixed frame.
7. the method for attachment of electric car power supply module claimed in claim 1, is characterized in that: the rear solid-state diffusion of the interior compression of groove that the projection of the copper sheet of (1) bus-bar inserts aluminium flake connects; (2) special fixture fixing is arranged and used to several positive battery unit and several negative battery unit intervals; (3) aluminium flake of bus-bar and copper sheet are placed on respectively on corresponding aluminium transverse slat and copper transverse slat and use special fixture fixing; (4) several good fixing positive battery unit and several negative battery unit and bus-bar are placed in the fully sheathed case with vacuum or negative pressure that only exposes welding position; (5) respectively corresponding aluminium flake, aluminium transverse slat and metal support piece are carried out to laser welding with laser and corresponding copper sheet, copper transverse slat and metal support piece carry out laser welding.
8. the method for attachment of electric car power supply module according to claim 7, is characterized in that: the relevant parameter of the described laser for laser welding: power, 600W; Zlasing mode, pulse fiber; Focus on F-200mm; Angle of inclination, 10; When welded part material is aluminium, thickness of coating is 0.4 mm, and aluminium pole ears thickness is 0.2 mm, parameter setting when metal support piece thickness is 3 mm: frequency 10Hz, pulsewidth 10ms, power 5.4kW (90%), defocus+8.5mm speed 7mm/s, subsidy gas N2; When welded part material is copper, thickness of coating is 0.4 mm, and copper polar ear thickness is 0.2 mm, parameter setting when metal support piece thickness is 3 mm: frequency 10Hz, pulsewidth 10ms, power 5.4kW (90%), defocus+5.0mm speed 4mm/s, subsidy gas Air.
9. it is better that the parameter setting of laser and laser welding is applicable to needs and the effect of electric car power supply module laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310077015.3A CN104051682B (en) | 2013-03-12 | 2013-03-12 | Power supply module of electrical vehicle and connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310077015.3A CN104051682B (en) | 2013-03-12 | 2013-03-12 | Power supply module of electrical vehicle and connection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104051682A true CN104051682A (en) | 2014-09-17 |
| CN104051682B CN104051682B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310077015.3A Active CN104051682B (en) | 2013-03-12 | 2013-03-12 | Power supply module of electrical vehicle and connection method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181082A (en) * | 2016-07-10 | 2016-12-07 | 安徽新能科技有限公司 | A kind of welding method of cooler bin in New-energy electric vehicle |
| CN114361679A (en) * | 2020-10-14 | 2022-04-15 | 大众汽车股份公司 | Welding device for producing an electrical contact in a battery module of a high-voltage battery |
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| JP2007066653A (en) * | 2005-08-30 | 2007-03-15 | Fuji Heavy Ind Ltd | External connector structure of power supply device |
| CN202178338U (en) * | 2011-06-09 | 2012-03-28 | 珠海金峰航电源科技有限公司 | Lithium ion battery with bidirectional current collector |
| CN202585590U (en) * | 2012-04-13 | 2012-12-05 | 万向电动汽车有限公司 | Power module structure of electric car |
| CN203165971U (en) * | 2013-03-12 | 2013-08-28 | 万向电动汽车有限公司 | Power supply module of electric car |
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2013
- 2013-03-12 CN CN201310077015.3A patent/CN104051682B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007066653A (en) * | 2005-08-30 | 2007-03-15 | Fuji Heavy Ind Ltd | External connector structure of power supply device |
| CN202178338U (en) * | 2011-06-09 | 2012-03-28 | 珠海金峰航电源科技有限公司 | Lithium ion battery with bidirectional current collector |
| CN202585590U (en) * | 2012-04-13 | 2012-12-05 | 万向电动汽车有限公司 | Power module structure of electric car |
| CN203165971U (en) * | 2013-03-12 | 2013-08-28 | 万向电动汽车有限公司 | Power supply module of electric car |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181082A (en) * | 2016-07-10 | 2016-12-07 | 安徽新能科技有限公司 | A kind of welding method of cooler bin in New-energy electric vehicle |
| CN106181082B (en) * | 2016-07-10 | 2019-07-09 | 安徽新能科技有限公司 | A kind of welding method for cooler bin in New-energy electric vehicle |
| CN114361679A (en) * | 2020-10-14 | 2022-04-15 | 大众汽车股份公司 | Welding device for producing an electrical contact in a battery module of a high-voltage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104051682B (en) | 2017-02-22 |
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Effective date of registration: 20211111 Address after: 311215 No. 855, Jianshe Second Road, economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Wanxiang 123 Co., Ltd Address before: 311215 No. 118, Jianshe Second Road, Xiaoshan Economic and Technological Development Zone, Hangzhou, Zhejiang Patentee before: Wanxiang Electric Vehicle Co., Ltd Patentee before: Wanxiang Group Co., Ltd |
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