CN206401416U - A kind of battery pack for electric vehicle - Google Patents
A kind of battery pack for electric vehicle Download PDFInfo
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- CN206401416U CN206401416U CN201621461510.XU CN201621461510U CN206401416U CN 206401416 U CN206401416 U CN 206401416U CN 201621461510 U CN201621461510 U CN 201621461510U CN 206401416 U CN206401416 U CN 206401416U
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- Prior art keywords
- battery pack
- busbar
- battery
- terminal
- subset
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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
- H01M50/50—Current conducting connections for cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A kind of battery pack for electric vehicle, it may include be arranged to multiple battery units of a line or multirow.Each in multiple battery units may include the first terminal and Second terminal, and multiple battery units may include that wherein the first terminal is directed subset of cells in the same direction in battery pack.Battery pack can further comprise busbar, and the busbar is configured to electric energy being transmitted at least described subset of cells and conducts electric energy from least described subset of cells.Busbar may include to be positioned in multiple otch above the first terminal of the subset of cells, and the corresponding the first terminal of Elastic Contact multiple contact pin.The battery pack for being used for electric vehicle can reduce the manufacturing cost of battery pack while the reliability and security of battery pack is improved.
Description
The cross reference of association request
Present patent application is the entitled " integrated bus bars for electric vehicle battery group submitted on December 30th, 2015
(INTEGRATED BUSBAR AND BATTERY CONNECTION FOR ELECTRIC VEHICLE are connected with battery
BATTERY PACKS) " U.S. Patent application No.62/272,713 non-provisional application simultaneously advocates its priority, the U.S.
Patent application is associated with following commonly assigned patent application.Each of these applications is all incorporated herein by reference
In：
Entitled " battery packages and molding insert-molded for electric vehicle submitted on December 30th, 2015
(BATTERY PACKAGING AND INSERT MOLDING FOR ELECTRIC VEHICLES) " U.S. Patent application
No.62/272,711。
Entitled " battery packages and molding insert-molded for electric vehicle submitted on December 30th, 2015
(BATTERY PACKAGING AND INSERT MOLDING FOR ELECTRIC VEHICLES) " U.S. Patent application
No.62/272,712。
Entitled " intelligent charging system (the SMART for electric vehicle battery group submitted on December 30th, 2015
CHARGING SYSTEM FOR ELECTRIC VEHICLE BATTERY PACKS) " U.S. Patent application No.62/272,
714。
Technical field
The utility model is related to a kind of battery pack for electric vehicle.
Background technology
One or more motor that electric vehicle is powered using stored electric energy in rechargeable battery.Lithium base
Battery is generally chosen because of its high power and energy density.Worked efficiently and safely in order to ensure electric vehicle, battery
The temperature of group is maintained in defined optimum temperature range.The coolant system of electric car can be physically extended to
Battery pack is to remove excessive heat, so as to extend the service life of battery pack and extend the distance for the wheeled that once charges.
As electric vehicle becomes increasingly popular, the efficiency of manufacturing process will become more important.Improving the reliability of battery pack
The process and device that the manufacturing cost of battery pack is reduced while with security will be the key points that meet consumer demand.Tool
, it is necessary to such process and device for body：It can ensure that the reliable electrical connection between single battery unit, efficiently cool down electricity
Pond group, and the modular battery group for aiding in assembling thousands of single battery units to install and replacing when necessary
Manufacturing process.
Utility model content
To solve above technical problem, the purpose of this utility model is to provide a kind of battery pack for electric vehicle,
The battery pack includes：
It is arranged to multiple battery units of a line or multirow, wherein：
Each in the multiple battery unit includes the first terminal and Second terminal；And
The multiple battery unit is directed in the same direction including wherein described the first terminal in the battery pack
Subset of cells；And
Busbar, the busbar is configured to electric energy being transmitted at least described subset of cells and from least institute
Subset of cells conduction electric energy is stated, the busbar includes：
Multiple otch, the multiple otch is positioned in above the first terminal of the subset of cells；And
Multiple contact pin, the corresponding the first terminal of the multiple contact pin Elastic Contact.
According to previously described battery pack, each in the multiple contact pin is thick less than 1.0mm.
According to previously described battery pack, the busbar includes metal sheet.
According to previously described battery pack, the multiple otch is arranged to a line or multirow.
According to previously described battery pack, the multiple otch by stamping out the hole with contact pin in metal sheet and
Formed.
According to previously described battery pack, the multiple otch is further formed by making the contact pin thinning.
According to previously described battery pack, the multiple otch is further by making the thinning tabs flex be elasticity
Profile and formed.
According to previously described battery pack, the busbar is positioned in the base plane of the battery pack.
According to previously described battery pack, the busbar is thick more than 1.00mm.
According to previously described battery pack, further comprise the second busbar, second busbar is positioned in described
Contacted in the top planes of battery pack and with the Second terminal of the subset of cells.
In certain embodiments, a kind of battery pack for electric vehicle may include to be arranged to the multiple of a line or multirow
Battery unit.Each in multiple battery units may include the first terminal and Second terminal, and multiple battery units can be wrapped
Include wherein the first terminal and subset of cells in the same direction is directed in battery pack.Battery pack can also include confluxing
Bar, the busbar is configured to electric energy being transmitted at least described subset of cells and sub from least described battery unit
Collection conduction electric energy.Busbar may include to be positioned in multiple otch above the first terminal of the subset of cells, and
Multiple contact pin of the corresponding the first terminal of Elastic Contact.
In certain embodiments, a kind of method for manufacturing the battery pack for electric vehicle may include multiple battery units
Arrangement is in a row or multirow.Each in multiple battery units may include the first terminal and Second terminal, and multiple batteries
Unit may include that wherein the first terminal is directed subset of cells in the same direction in battery pack.Methods described may be used also
Including positioning busbar, the busbar is configured to electric energy being transmitted at least described subset of cells and from least institute
State subset of cells conduction electric energy.Busbar may include to be positioned in many above the first terminal of the subset of cells
Individual otch, and the corresponding the first terminal of subset of cells described in Elastic Contact multiple contact pin.
In various embodiments, one or more of following characteristics can be included with any combinations and without restriction.It is many
Each in individual contact pin can be thick less than 1.0mm.Busbar may include metal sheet.Multiple otch can be arranged to a line or many
OK.Multiple otch can be formed by stamping out in metal sheet with the hole of contact pin.Multiple otch can be further by making
Contact pin is thinning and is formed.Multiple otch can be further by making thinning tabs flex be formed for elastic profile.Busbar can
It is positioned in the base plane of battery pack.It is thick that busbar can exceed 1.00mm.Battery pack can further comprise the second busbar,
Second busbar is positioned in the top planes of battery pack and contacted with the Second terminal of the subset of cells.
Brief description of the drawings
The remainder and accompanying drawing of this specification is can refer to realize to the further of property of the present utility model and advantage
Understand, wherein through some accompanying drawings, identical reference is used to represent similar assembly.In some cases, sub- mark with it is attached
Icon note is associated to represent one in multiple similar assemblies.When referring to the drawings mark without existing sub- mark is specifically designated
When, it is intended to represent all these multiple similar assemblies.
Fig. 1 illustrates the simplification figure of the electric vehicle with cell system capable of recharging according to some embodiments.
Fig. 2 illustrates the lithium-base battery that can be used in electric vehicle according to some embodiments.
Fig. 3 illustrates the top view and isometric view of the battery pack with coolant circuit according to some embodiments.
The top view and isometric view of battery pack of Fig. 4 diagrams with coolant circuit, wherein coolant circuit have quilt
It is moulding into the heat conductive pad being consistent with battery unit.
Fig. 5 illustrates the section of the busbar of the circular segments for including the impressing with central tab according to some embodiments
Top view and isometric view.
Fig. 6 is illustrated according to the side view of the section of the busbars with thinning central tab of some embodiments and equidistantly
View.
Fig. 7 diagrams are according to the thinning central tab for being shaped into Elastic Contact cell terminal of some embodiments
Side view and isometric view.
Fig. 8 illustrates a series of remittance of otch with the battery unit for being used to be arranged to multirow according to some embodiments
Flow bar.
The busbar that Fig. 9 diagrams are aligned according to multiple battery units with being arranged to multirow of some embodiments.
Figure 10 illustrates the busbar with the battery pack fits with molding inserts according to some embodiments.
Figure 11 illustrates the flow chart of the method for battery pack of the manufacture with busbar according to some embodiments.
Embodiment
Described herein for the embodiment for providing integrated bus bars and connection equipment, the integrated bus bars and connection are set
Solder connection between the standby busbar eliminated in battery pack and the terminal of single battery unit.In some battery packs, electricity
Pool unit subset can be all directed in the same direction, to cause the same side (example of the positive/negative terminals all in battery pack
Such as, the bottom of battery pack) on exposure.Busbar can be by removing a series of otch for being aligned with single battery unit and shape
Into.Each otch may include contact pin, and the contact pin is thinning and is then formed to contact the elasticity of the terminal of battery unit
Flange.In certain embodiments, busbar can be placed in injection molding, and battery unit is placed on busbar, and
It is disposed in the molding inserts being injected into, to form solid battery pack.
Fig. 1 illustrates the simplification figure of the electric vehicle 102 with cell system capable of recharging 104 according to some embodiments
100.Cell system capable of recharging 104 may include one or more battery group 106.Battery pack may include multiple single battery lists
Member, the multiple single battery unit is electrically connected to provide specific voltage/electric current for electric vehicle 102.Depending on implementation
Example, electric vehicle 102 may include the motor vehicle driven by mixed power using the work of both fuel combustion and stored electric power, and completely
Use the all-electric vehicle of stored work about electric power.
Cell system capable of recharging 104 represents the primary clustering of electric vehicle 102 in terms of size, weight and cost.Greatly
Amount makes great efforts to put into the design and shaping of cell system capable of recharging 104, so as in the peace for the passenger for ensuring electric vehicle 102
While complete, the amount in the space used in electric vehicle 102 is minimized.In some electric vehicles, rechargeable
Battery system 104 be located at compartment floor under, as depicted in fig. 1 as.In other electric vehicles, rechargeable battery system
System 104 can be located in the back in-support carriage of electric vehicle or engine cover area.
Although the larger battery unit of lesser amt is probably more energy efficient, the size of these larger batteries and into
This is excessive.In addition, larger battery needs more connected space blocks in electric vehicle 102.This hinders larger battery quilt
It is stored in the position such as the floor in compartment as depicted in fig. 1.Therefore, some embodiments use a large amount of less battery lists
Member, the less battery unit is coupled together to produce the electrical characteristics equivalent to single larger unit.Less list
Member can be, for example, the size of tradition AA/AAA batteries, and can be grouped together forming multiple battery packs 106.It is each
Individual battery pack may include a large amount of individually battery units.In one embodiment, 700 single lithium-base batteries are bound up on one
Rise to form single battery group 106a, and cell system capable of recharging 104 may include with the four of the connection of form in parallel or series
Individual battery pack 106, eight battery packs, ten battery packs, 16 battery packs and/or etc., until meeting electric vehicle 102
Untill electrical power demand.For single motor vehicle 102, included single battery unit in each battery pack 106
It can add up to thousands of.
Fig. 2 illustrates Figure 200 of the lithium-base battery 202 that can be used in electric vehicle according to some embodiments.Such as this paper institutes
Use, term " battery (battery) ", " unit (cell) " and " battery unit (battery cell) " are interchangeably used,
To represent any kind of single cell device used in battery system.Battery as described herein generally includes lithium base electricity
Pond, but may also comprise various chemical substances and configuration, including ferric phosphate, metal oxide, lithium ion polymer, nickel metal hydride
Thing, NI-G, nickel radical battery (hydrogen, zinc, cadmium etc.), and any other battery types compatible with electric vehicle.For example, one
A little embodiments, which can be used, to be purchased fromThe battery units of 6831 NCR 18650, or 18650 it is a certain be in 6.5cm
× 1.8cm appearance and size and about 45g modification.Battery 202 can have at least two terminals.In certain embodiments, positive pole
Terminal 204 can be located at the top of battery 202, and negative terminal 206 can be located on the relative bottom side of battery 202.
Fig. 3 is illustrated according to the top view 300 of the battery packs 304 with coolant circuit 306 of some embodiments and equidistantly
View 302.The battery pack 304 that Fig. 3 is described is that the actual battery group from will be used for electric vehicle significantly simplifies what is come.It is single
Only battery unit and the quantity of cell row have been greatly decreased, simply and to be explicitly described element of the present utility model.
It should be understood that actual battery group will include the more complicated route of more single battery units and coolant circuit 306.
Single battery unit in battery pack 304 is a series of rows, the single battery of each of which by linear arrangement
Unit is adjacent to another battery unit in row.In certain embodiments, will between the single battery unit in single row
In the absence of obvious gap.In order that the quantity of the single battery unit of per unit volume is maximized, the adjacent row of battery unit
It is shifted by the radius of about single battery unit.Adjacent row is then placed with the deviation post that Fig. 3 is described and suffered
Each other, to cause each single battery unit in the first row to be adjacent to or contact two in the second row individually electricity
Pool unit.In some embodiment (not shown), three rows or more row is placed with mutually adjacent, and does not have between the row
Obvious gap.
Fig. 3 battery pack 304 includes the paired adjacent row separated by coolant circuit 306.Electric vehicle can be configured
Coolant circuit 306 is passed through into pump liquid cooling agent, so as to which heat is delivered into radiator or other heat exchanges from battery pack 304
System.Coolant circuit 306 may include one or more coolant hose 308, and liquid coolant may pass through described one or more
Root coolant hose 308 and circulate.In certain embodiments, dedicated coolant loop can be used for battery pack 304 by electric vehicle, and
Other embodiment can utilize existing engine coolant subsystem.In certain embodiments, coolant circuit 306 can be also coupled to
To heating system, so that proper extreme weather causes environment temperature to fall below the preferred operating temperature of single battery unit
During scope, battery pack 304 can be heated.
Coolant circuit 406 of Fig. 4 diagrams with heat conductive pad 410, the heat conductive pad 410 is shaped into and battery unit phase
Symbol.In this embodiment, coolant circuit 406 is allowed to be kept into straight, and coolant circuit 406 and single battery list
Hot interface between member is formed by the use of heat conductive pad 410.Heat conductive pad may include the first side, and first side is generally
It is flat and be consistent with the vertically profiling of coolant circuit 406.Epoxy resin, sticker, adhesive tape can be used in heat conductive pad 410
And/or etc. and be engaged to coolant circuit 406.In certain embodiments, heat conductive pad 410 can be made in the form of sleeve pipe
Make, described sleeve pipe has the inner surface being consistent with the shape of coolant circuit 406.Coolant circuit 406 can be inserted into heat conduction
In pad 410, to cause the inner surface of heat conductive pad 410 to be contacted with coolant circuit 406.Heat conductive pad 410 can be by with least some
The material of elastic characteristic is formed, so that heat conductive pad 410 keeps being in close contact with coolant circuit 406.
In the example of fig. 4, each in single battery unit is directed in the same direction.In other words, it is single
The positive terminal of each in only battery unit is relative to battery pack towards each in upward direction, and negative terminal
It is individual towards in downward direction.In other embodiments, situation need not be such.The alternate row of single battery unit may be oriented
In opposite direction, to cause the positive terminal of the first row to be directed in an upward direction, and the positive terminal of the second row is directed
In a downward direction.The directional pattern alterable of single battery unit and it is unrestricted.For example, the battery list in a line
Member is directed in the opposite direction every one.In certain embodiments, the half in battery pack can be directed battery unit
In one direction, second half and in battery pack makes unit be directed in the opposite direction.In any of these situations
Under, it may be necessary to it is being directed between battery in the opposite direction or is being set up between battery in the same direction is directed
Connection.
In order to be electrically connected between battery unit, busbar can be used.As used herein, term " busbar " is
Finger is connected to multiple single cell terminals electric power is transported to the electricity of electric automobile from single battery unit
Any metallic conductor of Force system.In certain embodiments, on the top or bottom that busbar may include to be positioned in battery pack
Flat metal sheet.In certain embodiments, metal sheet can cover the whole top or bottom of battery pack, and at other
In embodiment, busbar may include that length is more than the bar that width interfaces with (interface with) with the battery unit with single row
Band.
Before the disclosure, the electrical connection between busbar and single battery unit be by by wire from the end of battery
Son is welded to busbar to realize.In the embodiments described herein, the busbar with the contact pin that is integrated and connected is presented.Converging
In the position that stream bar is interfaced with single battery unit, otch is formd.Otch may include central tab, and the central tab can
Thinning and be formed as elastic parts, the elastic parts is configured to maintain the termination contact with battery unit.
Fig. 5 illustrates the busbar of the circular segments 506 for including the impressing with central tab 504 according to some embodiments
Section 502 top view 500 and isometric view 501.This section 502 of busbar is to provide for explaining in detail and being simplified
's.Although being saved from this figure, the outer shape of the section 502 of busbar can extend to form sheet metal in each direction
Material.The section of busbar can be formed by any metal or conductive material (for example, aluminium).The section 502 of busbar is included in having
The circular segments 506 of the impressing of contact pin 504 are entreated, this can be formed by the way that cutter is pressed onto in metal sheet.In some embodiments
In, the thickness of busbar can be between 1.0mm and 5.0mm.In one embodiment, the thickness of busbar is 1.5mm.Because tool
The circular segments 506 for having the impressing of central tab 504 are come from the cutting of solid metal sheet material, so central tab 504
To be initially the remainder identical thickness with the section 502 of busbar.The shape of circular segments 506 is merely exemplary
, rather than it is it is intended that restricted.The otch of the shape with change can be used in other embodiment, for example, rectangular cutout,
Elliptical incision and/or etc..The shape of these changes can be cut open on press, or can be in Digit Control Machine Tool
It is machined on (CNC machine).
Fig. 6 illustrates the side view of the section 602 of the busbar with thinning central tab 604 according to some embodiments
600 and isometric view 601.Fig. 5 central tab 504 can be formed elastic parts, and the elastic parts can be configured to pressure
It is against on the terminal of battery unit.In certain embodiments, Fig. 5 central tab 504 can be simply in the direction of battery terminal
It is upper to bend to be contacted with elastic type.In other embodiments, central tab can be thinning and be formed as comparing metal
The central tab of the same thickness of sheet material provides the shape of greater flexibility.Fig. 6 diagrams are more held than the central tab of larger thickness
Flexible and moulding thinning central tab 604.
Thinning central tab 604 can be machined in otch 606 from the remainder of the section 602 of busbar
Fall.In otch 606 is the embodiment come using Digit Control Machine Tool machinery processing, thinning central tab 604 can also be added by machinery
Work is expectation thickness.In certain embodiments, thinning central tab 604 can be between 0.1mm and 1.0mm.In an implementation
In example, thinning central tab 604 is about 0.3mm thick.In certain embodiments, thinning central tab 604 can be relative to one
The plane of busbar on side and be recessed, and the planes align of the busbar on remainder and opposite side.This allows in one side
On to busbar be machined, without overturning busbar during mechanical processing process.Thinning central tab 604 can be with
The planes align of busbar on side, the side is relative with by the side of the single battery unit of positioning.
Fig. 7 diagrams are according to the thinning central tab for being shaped into Elastic Contact cell terminal of some embodiments
Side view 700 and isometric view 702.What the profile of Fig. 7 thinning central tab 704 was merely exemplary, without being intended to
To be restricted.Those skilled in the art is possible to form many differently contoured, and the profile is by with expansible property
And it is sufficiently flexible to contact with single cell terminal.
In this embodiment, thinning central tab includes straight section 704, followed by inclination section 706, the rake
Section 706 there is enough length so that thinning central tab on the opposite side of busbar with battery terminal contact.Then, become
Thin central tab may include straight section, and the straight section provides matching surface 710 between busbar and battery terminal.One
In a little embodiments, matching surface 710 may include mechanical relief portion, for example, the circular segments 708 illustrated in Fig. 7.Different shape can
For in other embodiment, as long as these shapes make thinning central tab 704 and battery terminal contact and provided enough
Elastic force maintains the contact between matching surface 710 and battery terminal.
Fig. 8 illustrates a series of otch 806 with the battery unit for being used to be arranged to multirow according to some embodiments
Busbar top view 800 and isometric view 802.Although previous accompanying drawing is for simplicity focused on single
The single otch of central tab, but Fig. 8 view 800,802 illustrates busbar 804 may tend to how to answer in real world
Occur with middle.In this embodiment, each in the single battery unit in the section that busbar 804 is covered is directed
In the same direction.For example, the negative terminal of each in single battery unit is oriented at perpendicular to confluxing
The plane of bar 804.Each in single battery unit can be positioned such that in each being centered in otch 806.Cut
Each in mouthfuls 806 includes central tab 808, and the central tab 808 is by the negative pole end bullet with single battery unit
Property contact.
The busbar 906 that Fig. 9 diagrams are aligned according to multiple battery units 904 with being arranged to multirow of some embodiments
Vertical view isometric view 900 and bottom isometric view 902.Multiple battery units 904 are arranged to many as illustrated in figure 3 above
Group adjacent row so that for coolant circuit leave each in the paired row of neighbouring single battery unit between prolong
The space stretched.The cut-out section of busbar may include sunk part, and the sunk part allows single battery unit to be placed
In a part for otch.In these embodiments, busbar 906 can be used as template, and the template is used to place single electricity
Pool unit is to cause the single battery unit to be uniform in each manufactured battery pack.Busbar 906 may be used also
During single battery unit is held in position during manufacturing process, to allow coolant circuit to be guided through
Battery pack, and any heat conductive pad or injection-molded inserts can be added, without causing single battery unit from appropriate location
Remove.As illustrated in view 902, the central tab of each otch by with each in single cell terminal
Side Elastic Contact, without any welding or other kinds of mechanical connection.
Figure 10 is illustrated according to some embodiments and the busbar 1002 of the battery pack fits with molding inserts 1004
Overlook isometric view 1000 and bottom isometric view 1002.Molding inserts 1004 can be injected into injection molding, and is permitted
Perhaps flow and pass through around any hole between single battery unit and any component related to coolant circuit
The hole and flow.In this embodiment, molding inserts 1004 is applied to so that moulding inserts 1004 and single battery
Flushed at the top of unit.Coolant circuit and heat conductive pad is completely covered in molding inserts 1004.However, molding inserts 1004 is not covered
The top or the bottom of single battery unit of single battery unit.On the contrary, individually these regions of battery unit are kept
To be exposed, to be electrically connected between single battery unit after application molding inserts.In other implementations
In example (not shown), molding inserts 1004 does not extend to top and/or the bottom terminals of battery pack.In some embodiments
In, the expose portion of single battery unit can be between 1.0mm and 15.0mm.The exposed amount of each single battery unit
Can be different between the top section and base section of single battery unit.By keep single battery unit one
Part is exposed, can more easily apply some type of electrical connection towards single battery unit.
In certain embodiments, the injection molding for application molding inserts 1004 may include the sky for busbar 1002
Between.In these embodiments, busbar 1002 can be placed in injection molding.Single battery unit can be then added to
The otch of busbar 1002, and coolant circuit can be directed between single battery unit row and be guided through injection
Outlet opening in mould.In certain embodiments, it may include the second busbar, second busbar can be added to battery pack
Top to connect the positive terminal of single battery unit.It should be noted that the second busbar not shown in FIG. 10, so as to clear
Describe position of the single battery unit relative to bottom busbar 1002 in ground.The combination of plastics and/or epoxy resin can be then
It is injected into injection molding, and solid battery pack can be formed.In certain embodiments, busbar 1002 can pass through
Molding inserts or the bottom that battery pack is secured to by other mechanical systems (for example, screw and/or sticker).
Although Figure 10 illustrates every in busbar 1002, the section described of the busbar 1002 to contact battery pack
The continuous level of one battery, but other embodiment is not constrained to this.As described above, busbar 1002 may include that covering is single
The single metal band of capable battery unit.For example, every a line battery unit in Figure 10 may be oriented in phase negative side
Upwards, this can need two or more band of confluxing.
Figure 11 illustrates the flow chart of the method for battery pack of the manufacture with busbar according to some embodiments.Methods described
It may include multiple battery units arrangement in a row or multirow (1102).Each in multiple battery units may include first end
Son and Second terminal.For example, each unit may include the relative of each being oriented in single battery unit
Positive terminal and negative terminal on side.Multiple battery units may include wherein the first terminal be oriented in battery pack it is identical
Subset of cells on direction.For example, a line battery unit in battery pack can form the battery subset.In this journey
Each battery may be oriented so that positive terminal relative to battery pack upwardly, and negative terminal is relative to battery pack face
Downwards.
Methods described may also include positioning busbar, and the busbar is configured to electric energy being transmitted at least described battery
Subset of cells and from least subset of cells conduction electric energy (1104).In certain embodiments, busbar may include
It is positioned in multiple otch above the first terminal of the subset of cells.As it appears from the above, otch may include recess, individually
Battery unit can be located in the recess with cause battery unit on otch it is placed in the middle.In certain embodiments, busbar can
Multiple contact pin including each in subset of cells described in Elastic Contact.
It will be appreciated that the specific steps illustrated in Figure 11 are provided is used for electricity according to the offer of various embodiments of the present utility model
The ad hoc approach of the busbar of the battery pack of motor-car.Other sequence of steps can be also performed according to alternate embodiment.Citing
For, the step of alternate embodiment of the present utility model can perform above-outlined in different order.In addition, the list illustrated in Figure 11
Only step may include many sub-steps that the various sequences for going for independent step are performed.In addition, may depend on spy
Apply calmly and add or remove additional step.Those skilled in the art will recognize that many changes, modifications and substitutions.
In being described above, for illustrative purposes, elaborate numerous details to provide to of the present utility model
The comprehensive understanding of various embodiments.However, will be apparent that for those skilled in the art, can be specific thin in the absence of these
Embodiment of the present utility model is put into practice in the case of some in section.In other circumstances, well known knot is shown in form of a block diagram
Structure and device.
It is described above and exemplary embodiment is only provided, and not is intended to limitation the scope of the present disclosure, applicability or configuration.
In fact, the description to exemplary embodiment will be provided for implementing exemplary embodiment to those skilled in the art above
Fully describe.It should be understood that various changes can be carried out to the function and arrangement of element, explained without departing from such as following claims
The spirit and scope of the present utility model stated.
Give detail to provide the comprehensive understanding to embodiment in described above.However, the skill of this area
Art personnel will be understood that, can put into practice embodiment in the case of in the absence of these details.For example, circuit, system, net
Network, process and other assemblies may be shown as component by block diagram format, in order to avoid with unnecessary unnecessary details embodiment.
In other circumstances, well known circuit, process, algorithm, structure and technology can be shown without unnecessary detail,
So as to embodiment of avoiding confusion.
Also, it should be noted that individually embodiment can have described as such process, the process is depicted as stream
Cheng Tu, data flowchart, structure chart or block diagram.Although flow chart can have been described the operations as sequential process, many behaviour
Work concurrently or can be performed simultaneously.In addition, the order of operation can be re-arranged.Process is terminated when its operation is completed, but
There can be the additional step not included in figure.Process may correspond to method, function, process, subroutine, subprogram etc..Work as process
During corresponding to function, its termination may correspond to function and return to call function or principal function.
In description above, aspect of the present utility model is described with reference to specific embodiment of the utility model, but
Those skilled in the art will recognize that, the utility model is not constrained to this.Above-mentioned practicality can be employed separately or in combination
New various features and aspect.In addition, embodiment can be used for any quantity beyond those described herein environment and application
Environment and application in, without departing from the wide spirit and scope of this specification.Therefore, the specification and drawings are considered as
It is illustrative and not restrictive.
Claims (10)
1. a kind of battery pack for electric vehicle, it is characterised in that the battery pack includes：
It is arranged to multiple battery units of a line or multirow, wherein：
Each in the multiple battery unit includes the first terminal and Second terminal；And
The multiple battery unit is directed electricity in the same direction including wherein described the first terminal in the battery pack
Pool unit subset；And
Busbar, the busbar is configured to electric energy being transmitted at least described subset of cells and from least described electricity
Pool unit subset conducts electric energy, and the busbar includes：
Multiple otch, the multiple otch is positioned in above the first terminal of the subset of cells；And
Multiple contact pin, the corresponding the first terminal of the multiple contact pin Elastic Contact.
2. battery pack according to claim 1, it is characterised in that each in the multiple contact pin is thick less than 1.0mm.
3. battery pack according to claim 1, it is characterised in that the busbar includes metal sheet.
4. battery pack according to claim 1, it is characterised in that the multiple otch is arranged to a line or multirow.
5. battery pack according to claim 1, it is characterised in that the multiple otch in metal sheet by stamping out
Formed with the hole of contact pin.
6. battery pack according to claim 5, it is characterised in that the multiple otch is further by becoming the contact pin
It is thin and formed.
7. battery pack according to claim 6, it is characterised in that the multiple otch is further described thinning by making
Tabs flex is formed for elastic profile.
8. battery pack according to claim 1, it is characterised in that the busbar is positioned in the bottom of the battery pack
In plane.
9. battery pack according to claim 1, it is characterised in that the busbar is thick more than 1.00mm.
10. battery pack according to claim 1, it is characterised in that further comprise the second busbar, described second confluxes
Bar is positioned in the top planes of the battery pack and contacted with the Second terminal of the subset of cells.
Applications Claiming Priority (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562272713P | 2015-12-30 | 2015-12-30 | |
| US201562272714P | 2015-12-30 | 2015-12-30 | |
| US201562272712P | 2015-12-30 | 2015-12-30 | |
| US201562272711P | 2015-12-30 | 2015-12-30 | |
| US62/272,712 | 2015-12-30 | ||
| US62/272,711 | 2015-12-30 | ||
| US62/272,714 | 2015-12-30 | ||
| US62/272,713 | 2015-12-30 | ||
| US15/187,329 | 2016-06-20 | ||
| US15/187,329 US9966586B2 (en) | 2015-12-30 | 2016-06-20 | Integrated busbar and battery connection for electric vehicle battery packs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206401416U true CN206401416U (en) | 2017-08-11 |
Family
ID=59514392
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621461510.XU Expired - Fee Related CN206401416U (en) | 2015-12-30 | 2016-12-29 | A kind of battery pack for electric vehicle |
| CN201611242108.7A Pending CN107068953A (en) | 2015-12-30 | 2016-12-29 | Integrated bus bars and battery for electric vehicle battery group are connected |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611242108.7A Pending CN107068953A (en) | 2015-12-30 | 2016-12-29 | Integrated bus bars and battery for electric vehicle battery group are connected |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN206401416U (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB265773A (en) * | 1926-02-10 | 1927-02-17 | Harold Augustus Yoward | Means for containing and connecting electric batteries |
| US6102754A (en) * | 1997-03-31 | 2000-08-15 | The Whitaker Corporation | Bus bar contact |
| FR2888669B1 (en) * | 2005-07-13 | 2010-08-20 | Batscap Sa | INTERCONNECTION SYSTEM FOR AN ENERGY STORAGE ASSEMBLY |
| US20120244397A1 (en) * | 2010-07-12 | 2012-09-27 | Coda Automotive, Inc. | Battery assembly |
| KR102024002B1 (en) * | 2012-07-05 | 2019-09-23 | 에스케이이노베이션 주식회사 | Battery pack |
| US8628335B1 (en) * | 2012-12-07 | 2014-01-14 | Tyco Electronics Corporation | Power terminal connector |
| JP6006134B2 (en) * | 2013-02-08 | 2016-10-12 | トヨタ自動車株式会社 | Connecting member |
| JP2015099759A (en) * | 2013-11-20 | 2015-05-28 | 株式会社東芝 | Bus bar for battery pack and battery pack |
-
2016
- 2016-12-29 CN CN201621461510.XU patent/CN206401416U/en not_active Expired - Fee Related
- 2016-12-29 CN CN201611242108.7A patent/CN107068953A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN107068953A (en) | 2017-08-18 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20201229 |