CN105244467A - Compression joint type power battery assembly structure, assembling method and electric vehicle - Google Patents
Compression joint type power battery assembly structure, assembling method and electric vehicle Download PDFInfo
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- CN105244467A CN105244467A CN201510589917.4A CN201510589917A CN105244467A CN 105244467 A CN105244467 A CN 105244467A CN 201510589917 A CN201510589917 A CN 201510589917A CN 105244467 A CN105244467 A CN 105244467A
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- lug
- copper coin
- bar
- soft pack
- pressure contact
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a compression joint type power battery assembly structure, an assembling method and an electric vehicle. The compression joint type power battery assembly structure comprises an upper part battery compartment, flexibly packaged electric cores and a protection cover arranged in a battery compartment; two tab-fixing copper plates are arranged on the opening side of the battery compartment; a positive electrode tab and a negative electrode tab of each flexibly packaged electric core are covered by the two tab-fixing copper plates respectively; tab perforating holes are formed in the position, corresponding to the tabs, in the tab-fixing copper plates; the tabs of the flexibly packaged electric cores penetrate through the tab perforating holes to be bent to form pressing parts clung to the upper surfaces of the tab-fixing copper plates; compressing copper plates for propping and pressing the pressing parts are arranged on the tab-fixing copper plates; the compressing copper plates are connected with the tab-fixing copper plates through threaded fastening parts; the compressing copper plates are further provided with connection member parts; and the compressing copper plates are covered by the protection cover. The compression joint type power battery assembly structure can avoid damage of the flexibly packaged electric cores and the environment pollution caused in the tin soldering process; and in addition, the assembly structure is suitable for industrial production and capable of ensuring reliable connection as well.
Description
Technical field
The present invention relates to Vehicular dynamic battery technical field, especially relate to a kind of be convenient to realize automated production battery assembling structure, assemble method and apply the electric motor car of this power battery pack assembling structure.
Background technology
Lithium ion battery technology is day by day ripe, and soft pack cell battery pack wherein due to have light, thin, have extended cycle life, security performance is good, energy density is high, discharge platform is stable, power-performance is outstanding, the many advantages such as environment friendly and pollution-free and be able to fast development.In prior art, people first adopt soldering process that several cells are assembled into an electrokinetic cell module by series and parallel mode usually, and then some electrokinetic cell modules are concatenated into an electrokinetic cell use.But for soft pack cell battery, high temperature during scolding tin has very large infringement to soft pack cell itself, and higher to the requirement of operating personnel, and production efficiency is low, simultaneously the smog that produces of scolding tin is to environment.In Chinese patent literature disclosed " a kind of electrokinetic cell module syndeton and attaching method thereof ", its publication No. is CN103035870A, electrokinetic cell module is made up of some cells, connected by syndeton between adjacent power battery modules, syndeton comprises pcb board, and pcb board is provided with more than one connector; Connector comprises the metal shell that two ends communicate, and is provided with spring leaf in shell, is provided with the support ring for spring leaf and shell being fixed between spring leaf and outer casing inner wall; Pcb board is provided with through hole, and the shell of connector and pcb board are electrically connected, and forms connecting hole in connector; During connection, contact pin on each cell be in the electrokinetic cell module of pcb board both sides is inserted in the connecting hole of the connector corresponding with it, and keep the spring leaf in contact pin and connector to be electrically connected, the cell in adjacent power battery modules is electrically connected by connector.The program connects cell corresponding in two electrokinetic cell modules by connector, cell realizes elasticity between contact pin with connector to be connected, thus be conducive to avoiding producing because of vibration the phenomenon that gets loose, and can solve soldering connect existing for easy soft pack cell itself is produced damage and problem to environment.But such scheme still exist packaging efficiency low, be not suitable for automated production and the problem of connection reliability to be affected because of the flexibility decrease of spring leaf after using through the long period.
Summary of the invention
The object of the invention is in order to solve packaging efficiency existing for existing power battery assembling mode low, be not suitable for the low problem of the reliability of automated production and connection, provide a kind of packaging efficiency high, be applicable to automated production and reliable the compression joint type power battery pack assembling structure, the assemble method that connect can be guaranteed and apply the electric motor car of this power battery pack assembling structure.
To achieve these goals, the present invention is by the following technical solutions:
A kind of compression joint type power battery pack assembling structure, comprise the battery compartment of upper opening, length direction along battery compartment is disposed side by side on some soft pack cells in battery compartment and over cap, the upside of described soft pack cell is provided with lug, lug is made up of the anode ear of sheet and negative electrode lug, the open side of described battery compartment is provided with two pieces of lugs and fixes copper coin, two pieces of lugs fix anode ear and the negative electrode lug that copper coin covers soft pack cell respectively, described lug is fixed and copper coin is provided with lug with corresponding position, lug position is bored a hole, the lug of described soft pack cell is bent to form after being each passed through lug perforation and abuts in lug and fix pressure contact portion on copper coin upper surface, lug is fixed copper coin and is provided with the compression copper coin compressing pressure contact portion, compression copper coin is fixed copper coin by threaded fastener and lug and is connected, described compression copper coin is also provided with wiring component, described over cap covers and compresses copper coin.
The present invention is fixed copper coin by lug and is compressed copper coin and is crimped together on lug tightly by the pressure contact portion of bending, thus soft pack cell is unified into an electrokinetic cell module, then realize the series connection between two electrokinetic cell modules by the wiring component compressed on copper coin.Owing to eliminating soldering operation, the infringement that high temperature when therefore can avoid scolding tin causes soft pack cell and the smog pollution on the environment that scolding tin produces, and be conducive to reducing the requirement to operating personnel, be convenient to realize automated production simultaneously, can enhance productivity significantly.Particularly, we can arrange corresponding threaded fastener respectively compressing both sides copper coin being positioned at pressure contact portion, thus make the upper and lower both sides of the pressure contact portion of lug and compress copper coin and lug and fix copper coin and fit tightly, effectively improve reliability and the conductive area of connection, the connection avoiding long-time use easily to produce loosens problem.
As preferably, described wiring component comprises compartment of terrain and is vertically arranged on the serial connection plate compressing two Binding post/studs on copper coin and rectangle, the right side of four sides of described serial connection plate is respectively equipped with the connection slot extended to another relative side, the bottom semicircular in shape of described connection slot, four centers of circle connecting the semicircular base of slot lay respectively on four summits of same rectangle, two Binding post/studs are connected with a locking nut through after two connection slots of serial connection plate side, on described over cap, corresponding Binding post/stud position is provided with installation through hole, the side correspondence serial connection Board position of over cap is provided with serial connection plate storage tank.
When needing connection two electrokinetic cell modules, two electrokinetic cell modules can be made close to each other, then by the connection slot on serial connection plate wherein on two relative sides respectively near aiming at the relative Binding post/stud of two electrokinetic cell modules, in the connection slot that two Binding post/studs are entered on serial connection plate on two relative sides respectively, then two electrokinetic cell module mutual dislocation are made to move and close, serial connection plate can be made to produce tilt rotation, another Binding post/stud on two electrokinetic cell modules can enter in the connection slot on serial connection plate on other two relative sides respectively, then be threaded a locking nut on each Binding post/stud, serial connection plate can be fixed, thus make two electrokinetic cell modules be concatenated into an electrokinetic cell.Because serial connection plate can realize the connection with electrokinetic cell module from the side; can avoid when therefore connecting removing over cap; greatly facilitate the serial connection of electrokinetic cell module; four of being simultaneously connected in series on plate connect the opening of slot respectively towards four sides of serial connection plate; that is, two that are connected with each electrokinetic cell module connect slot in vertical state, therefore; be conducive to serial connection plate and the reliability of locating and being connected between electrokinetic cell module, avoid occurring loosening phenomenon in use.
As preferably, described pressure contact portion is provided with the spherical surface hill of epirelief, and described compression copper coin is provided with spherical depression at corresponding spherical surface hill place, and the radius of described spherical depression is 1.1-1.3 with the ratio of the radius of spherical surface hill.
Spherical depression coordinates the slippage can avoiding compressing copper coin with spherical surface hill, particularly, if compressing between copper coin and pressure contact portion is plane contact, when the both sides compressing copper coin are fixed by threaded fastener, compressing can upwardly thus produce slight flexural deformation with pressure contact portion contact position in the middle of copper coin, namely form linear contact lay between compression copper coin now and two sides of pressure contact portion, thus conductive area is reduced greatly.And the radius compressing the spherical surface hill of the radius ratio pressure contact portion of the spherical depression of copper coin in the present invention is bigger, therefore, when compressing copper coin and being pressed on pressure contact portion, spherical surface hill and spherical depression slight deformation and make radius close to each other, thus the contact area that can improve significantly between the two, and spherical depression and spherical surface hill can be avoided to form plastic deformation because crossing excessive deformation.Guarantee reliable contacts between the two after Long-Time Service.
As preferably, it is through that the lug lug perforation fixed on copper coin extends to the outer side edges of fixing copper coin with lug to battery compartment Width, thus form the little V-arrangement opening of a mouth imperial palace, the overbending direction that one piece of lug fixes the pressure contact portion of adjacent two anode ears on copper coin is contrary, the overbending direction that another block lug fixes the pressure contact portion of adjacent two negative electrode lugs on copper coin is contrary, and described threaded fastener comprises and is arranged on the trip bolt that lug fixes the crimping group both sides that copper coin is made up of two pressure contact portions that overbending direction is relative.
The lug perforation fixed on copper coin due to lug is through with outer side edges, and has the little V-arrangement opening of a mouth imperial palace, is therefore convenient to lug and fixes copper coin and be inserted into above soft pack cell from the side, thus the pressure contact portion of lug can be processed in advance.Particularly, two pressure contact portions fixing overbending direction on copper coin relative due to lug form crimping group, therefore be both conducive to stoping lug to fix the displacement of copper coin at above-below direction, be conducive to the quantity reducing threaded fastener simultaneously, that is, only need arrange threaded fastener in the both sides of crimping group can compress two relative pressure contact portions of overbending direction simultaneously.
As preferably, fix between copper coin and soft pack cell at lug and be also provided with vibration damper plate and insulation board from bottom to up, described insulation board comprises by the base bar of strip and body, the side bumper bar of comb shape that integrally form perpendicular to the tabula bar of base bar side, described side bumper bar is provided with the blocked hole corresponding with tabula bar, the free end of tabula bar is provided with the snap fit of bending, and on body, the snap fit of each tabula bar is connected in blocked hole corresponding to side bumper bar.
Vibration damper plate can adopt foam to make, and it is conducive to protecting soft pack cell, facilitates it to install by the insulation board of body and the clamping of side bumper bar.
As preferably, the corresponding pressure contact portion bending position in described positive and negative lug both sides is provided with bending detent, thus the positive and negative lug making flat is I shape.
In positive and negative lug both sides, corresponding pressure contact portion bending position is provided with bending detent, is convenient to the bending position accurately controlling pressure contact portion, is conducive to reducing pressure contact portion in the intensity of bending part and rigidity, can improves the precision of pressure contact portion bending angle.Particularly, when installing compression copper coin, when the bending angle running into multiple pressure contact portion is inconsistent, is conducive to by compressing the extruding of copper coin to pressure contact portion, the bending angle of pressure contact portion being reached unanimity, guarantees pressure contact portion and compressing fitting tightly between copper coin.
A kind of compression joint type power battery assembling method, comprises the steps:
A. the lug of sheet on the soft pack cell of flat is bent into 95 degree of-100 degree and forms pressure contact portion, then the soft pack cell of even number is put into upper opening one by one and rectangular battery compartment spaced separation trough vertically, separation trough arranges along the length direction of battery compartment, anode ear in the lug of all soft pack cells is arranged in anode ear string, negative electrode lug in the lug of all soft pack cells is arranged in negative electrode lug string, and make the soft pack cell of the soft pack cell of odd indexed and follow-up adjacent even number sequence number form a soft pack cell pair, the pressure contact portion overbending direction of the lug of this soft pack cell centering two soft pack cells is oppositely arranged,
B. place on battery compartment top and to be made up of damping foam and to cover the vibration damper plate of soft pack cell, the centre of vibration damper plate arranges opening, the lug of soft pack cell is positioned at opening, then on vibration damper plate, insulation board is covered, insulation board comprises by the base bar of strip and the body of comb shape that integrally forms perpendicular to the tabula bar of base bar side, side bumper bar, side bumper bar is provided with the blocked hole corresponding with tabula bar, the free end of tabula bar is provided with the snap fit of bending, the side of the body of comb shape from the length direction of battery compartment is laterally moved to above vibration damper plate, tabula bar in body through adjacent two soft pack cells lug gap, then side bumper bar is fastened on the snap fit of tabula bar from side direction,
C. two pieces of lugs are fixed copper coin laterally to move to above insulation board from two sides of the length direction of battery compartment, lug is fixed compartment of terrain on copper coin and is provided with some lug perforation extending to a side, the opening part of lug perforation arranges chamfering thus forms V-arrangement opening, the V-arrangement opening that two pieces of lugs fix copper coin is positioned opposite, the V-arrangement opening part that in anode ear string, the upstanding portion of anode ear fixes lug perforation corresponding to copper coin from one piece of lug enters and is positioned in lug perforation, the V-arrangement opening part that in negative electrode lug string, the upstanding portion of negative electrode lug fixes lug perforation corresponding to copper coin from another block lug enters and is positioned in lug perforation, the pressure contact portion of lug exposes to lug and fixes copper coin upper surface with being inclined upwardly,
D. fix on copper coin at every block lug and cover the compression copper coin that a piece is provided with wiring component, and adopt threaded fastener to make compression copper coin and lug fix copper coin to be connected, the pressure contact portion of positive and negative lug is compressed in corresponding compression copper coin respectively and lug is fixed between copper coin, then compress over cap copper coin covering and can insulate, thus form an independently electrokinetic cell module;
E. by being arranged on the wiring component compressed on copper coin, some electrokinetic cell modules are serially connected, thus form an electrokinetic cell.
Because pressure contact portion is inclined upwardly, therefore facilitate lug to fix copper coin and move into from side direction with compression copper coin.The present invention is fixed copper coin by lug and is compressed copper coin to be crimped together by the pressure contact portion of lug, and lug is connected by threaded fastener when fixing copper coin and compress between copper coin, therefore soldering operation can be cancelled, the infringement that high temperature when avoiding scolding tin causes soft pack cell and the smog pollution on the environment that scolding tin produces, and be conducive to reducing the requirement to operating personnel, be convenient to realize automated production simultaneously.
As preferably, described wiring component comprises compartment of terrain and is vertically arranged on the serial connection plate compressing two Binding post/studs on copper coin and rectangle, phase the same side of four sides of described serial connection plate is respectively equipped with the connection slot extended to another relative side, the bottom semicircular in shape of described connection slot, four centers of circle connecting the semicircular base of slot lay respectively on four summits of same rectangle, on described over cap, corresponding Binding post/stud position is provided with installation through hole, the side of over cap is provided with serial connection plate storage tank, when needing connection two electrokinetic cell modules, first an electrokinetic cell module is placed on the stationary platform, another electrokinetic cell module is placed on a mobile platform contour with fixed platform, this mobile platform mobile, the side making two electrokinetic cell modules be provided with Binding post/stud is close to each other, then by the connection slot on serial connection plate wherein on two relative sides respectively by the serial connection plate storage tank on two electrokinetic cell modules over cap close to each other, and make the connection slot on described two relative sides aim at the Binding post/stud being positioned at diagonal positions in two electrokinetic cell modules, four Binding post/studs close to each other, two Binding post/studs being positioned at diagonal positions described in making enter the connection slot be connected in series on plate on described two relative sides respectively, then continuing mobile mobile platform makes two electrokinetic cell module mutual dislocation move and close, serial connection plate now produces tilt rotation, another Binding post/stud on two electrokinetic cell modules can enter in the connection slot on serial connection plate on other two relative sides respectively, then be threaded a locking nut on each Binding post/stud, serial connection plate can be fixed, thus make two electrokinetic cell modules be concatenated into an electrokinetic cell.
Owing to being connected by serial connection plate side direction between two electrokinetic cell modules, therefore without the need to dismantling respective over cap, and stable connection is reliable.
As preferably, described blocked hole is the clamping aperture of rectangle and the shoulder hole of clamping macropore serial connection formation, the overbending direction of the snap fit of adjacent tabula bar is contrary, and be provided with chamfering in the outer end of snap fit, when side bumper bar and tabula bar fasten, snap fit enters in clamping aperture, the chamfering that now snap fit outer end tilts is subject to pushing of clamping aperture thus makes side bumper bar to curving, then snap fit enters in clamping macropore through after clamping aperture, side bumper bar now resets, the snap fit of side bumper bar end then screens at the step place of blocked hole.
Because the overbending direction of the snap fit of adjacent tabula bar is contrary, therefore, when its reliability can be guaranteed after side bumper bar and body clamping, avoid getting loose of side bumper bar.
A kind of electric motor car, comprises compression joint type power battery pack assembling structure as above.
Therefore, the present invention has following beneficial effect: the infringement that soldering process can be avoided to produce soft pack cell and environment and pollution, packaging efficiency is high, is applicable to automated production, and can guarantees reliable connection.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of electrokinetic cell module.
Fig. 2 is the decomposition texture schematic diagram of electrokinetic cell module.
Fig. 3 is the right a kind of structural representation of soft pack cell.
Fig. 4 is a kind of structural representation of insulation board.
Fig. 5 is the structural representation that the two pieces of lugs covered on insulation board fix copper coin.
Fig. 6 is the structural representation that wiring component connects the electrokinetic cell module removing over cap.
Fig. 7 is lug crimped status structural representation.
In figure: 1, battery compartment 2, soft pack cell 21, lug 221, spherical surface hill 3, over cap 4, vibration damper plate 5, insulation board 51, body 511, base bar 512, tabula bar 513, snap fit 52, side bumper bar 521, blocked hole 522, clamping aperture 523, clamping macropore 6, lug are fixed copper coin 61, lug perforation 7, compression copper coin 71, spherical depression 8, trip bolt 9, wiring component 91, serial connection plate 911, connected slot 92, Binding post/stud.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described.
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of compression joint type power battery pack assembling structure, comprise a cubic and the battery compartment 1 of upper opening, the some soft pack cells 2 be disposed side by side on along the length direction of battery compartment in battery compartment, the lug 21 of soft pack cell is arranged on the upside of soft pack cell, lug is made up of the anode ear of sheet and negative electrode lug, and the positive and negative lug orientation of all soft pack cells is consistent, thus forms the anode ear string formed by anode ear and the negative electrode lug string formed by negative electrode lug at the length direction of battery compartment.As shown in Figure 3, after the bending of the top of the anode ear in lug and negative electrode lug, form pressure contact portion 22, thus make anode ear and negative electrode lug substantially L-shaped.
In addition, we need on the upside of soft pack cell, to arrange the vibration damper plate 4 be made up of foam, to protect soft pack cell from damage.Certainly, we need on vibration damper plate, to arrange corresponding via hole, so that lug stretches out from via hole.Further, we need to arrange insulation board 5 again on vibration damper plate.As shown in Figure 4, insulation board comprises body 51 and side bumper bar 52, the base bar 511 of body by strip and the some tabula bars 512 perpendicular to base bar side are integrally formed, equidistantly distribute between tabula bar, thus make body be comb shape, the free end of tabula bar has the snap fit 513 of bending, and side bumper bar arranges the blocked hole 521 corresponding with tabula bar, and on body, the snap fit of each tabula bar is connected in blocked hole corresponding to side bumper bar.Like this, during fitting insulating panels, we can, by the side long edge position transverse shifting of the body of insulation board comb shape from battery compartment, in the space that the tabula bar on body is inserted between adjacent soft pack cell lug, thus make the vertical portion of lug be able to supporting and location.Then the tabula bar of side bumper bar from side direction and body is fastened, the snap fit of each tabula bar on body is connected in blocked hole corresponding to side bumper bar, thus body and side bumper bar card are formed a complete insulation board.
In order to realize the parallel connection between the parallel connection between the anode ear in anode ear string and the negative electrode lug in negative electrode lug string, we need on insulation board, arrange two pieces of lugs and fix copper coin 6, two pieces of lugs fix anode ear and the negative electrode lug that copper coin covers soft pack cell respectively, certainly, lug is fixed and copper coin should arrange lug with corresponding position, lug position bored a hole, so that the vertical portion of lug passes from lug perforation.For the ease of installing, as shown in Figure 5, it is through that the lug lug perforation 61 fixed on copper coin 6 extends to the outer side edges of fixing copper coin with lug to battery compartment Width, and arrange chamfering at opening part, thus form the little V-arrangement opening of a mouth imperial palace.During installation, two pieces of lugs are fixed copper coin and can be moved laterally to above insulation board from the both sides of battery compartment respectively, vertical portion now in positive and negative lug respectively screens is fixed in the lug perforation of copper coin at two pieces of lugs, and the pressure contact portion of lug is then positioned at lug to be fixed above copper coin.Then fix on copper coin at two pieces of lugs and one piece of compression copper coin 7 is set respectively, and on compression copper coin, threaded fastener is set, make compression copper coin fix copper coin by threaded fastener and lug to be connected, thus pressure contact portion is crimped on compresses copper coin and lug and fix between copper coin, compression copper coin now compresses pressure contact portion upper surface, and lug fixes the lower surface that copper coin compresses pressure contact portion.That is, the positive and negative lug string of each soft pack cell is connected respectively by compression copper coin.It should be noted that, the overbending direction of the pressure contact portion of adjacent two anode ears is contrary, similarly, the overbending direction of the pressure contact portion of adjacent two negative electrode lugs is also contrary, like this, two pressure contact portions that overbending direction is relative form a crimping group, and threaded fastener adopts trip bolt 8, particularly, we can arrange trip bolt respectively in the position compressing corresponding each crimping group both sides on copper coin, thus it is fastening to make the both sides of crimping group obtain, the pressure contact portion of lug is made to fix copper coin crimped reliably with compression copper coin, lug.
In addition; we also need to compress above copper coin at two pieces to arrange over cap 3; an independently electrokinetic cell module is formed with coated compression copper coin; particularly; we can arrange the fastening bolt be threaded with compression copper coin on over cap; and corresponding screw via hole is set on over cap, so that compress the dismounting of the trip bolt on copper coin.Be understandable that, we need to arrange wiring component, so that electrokinetic cell module is concatenated into electrokinetic cell on compression copper coin.As shown in Figure 6, wiring component 9 comprises the serial connection plate 91 of rectangle and is vertically riveted on two Binding post/studs 92 compressed on copper coin along the length direction compartment of terrain of battery compartment, four sides of serial connection plate are located on the right side arrange the connection slot 911 extended to another relative side respectively, it should be noted that, herein on indication four sides the place of keeping right for observer, and connect the side of slot perpendicular to serial connection plate, and connect the bottom semicircular in shape of slot, be connected in series four centers of circle connecting the semicircular base of slot on plate lays respectively on four summits of same rectangle simultaneously, and the distance between two Binding post/studs of the Distance geometry wherein between two summits is equal.When we need connection two electrokinetic cell modules, two electrokinetic cell modules can be made close to each other, then by the connection slot on serial connection plate wherein on two relative sides respectively near aiming at a Binding post/stud of keeping right in the Binding post/stud of two relative sides of electrokinetic cell module, and in the connection slot that two Binding post/studs are entered on serial connection plate on two relative sides respectively.Certainly, herein the left and right directions of Binding post/stud also for observer.Then two electrokinetic cell module mutual dislocation are made to move and close, serial connection plate can be made to produce tilt rotation, another Binding post/stud on two electrokinetic cell modules can enter in the connection slot on serial connection plate on other two relative sides respectively, then be threaded a locking nut (not shown) on each Binding post/stud, serial connection plate can be fixed, thus make two electrokinetic cell modules be concatenated into an electrokinetic cell.Be understandable that, on over cap, corresponding Binding post/stud position need arrange installation through hole, to facilitate the dismounting of locking nut, simultaneously should arrange serial connection plate storage tank at the side correspondence serial connection Board position of over cap, is displaced sideways connection with what facilitate serial connection plate.
Further, as shown in Figure 7, we can arrange the spherical surface hill 221 of epirelief on pressure contact portion, and on compression copper coin, corresponding spherical surface hill place arranges spherical depression 71 simultaneously, and the radius of spherical depression is 1.1-1.3 with the ratio of the radius of spherical surface hill, its preferred value is 1.2.Like this, when compressing copper coin and being crimped on pressure contact portion, spherical depression coordinates the slippage can avoiding compressing copper coin with spherical surface hill, and spherical surface hill and spherical depression slight deformation and make radius close to each other, thus contact area between the two can be improved significantly.In addition, as shown in Figure 3, we also can arrange bending detent by corresponding pressure contact portion bending position in positive and negative lug both sides, and that is, the positive and negative lug of flat is I shape.Like this, be both conducive to the bending angle and the positional precision that improve pressure contact portion, and be conducive to by compressing the extruding of copper coin to pressure contact portion, the bending angle of pressure contact portion being reached unanimity simultaneously, guarantee pressure contact portion and compressing fitting tightly between copper coin.
Embodiment 2: a kind of compression joint type power battery assembling method, comprises the steps:
A. as shown in Figure 1, the lug of sheet on the soft pack cell of flat is bent into 95 degree of-100 degree and forms pressure contact portion, then as Fig. 1, shown in Fig. 2, the soft pack cell of even number is put into upper opening and rectangular battery compartment spaced separation trough vertically one by one, separation trough arranges along the length direction of battery compartment, pressure contact portion is now inclined upwardly with the angle of 5 degree of-10 degree, anode ear in the lug of all soft pack cells is arranged in anode ear string, negative electrode lug in the lug of all soft pack cells is arranged in negative electrode lug string, and make the soft pack cell of the soft pack cell of odd indexed and follow-up adjacent even number sequence number form a soft pack cell pair, that is, 1st, 2nd soft pack cell forms a soft pack cell pair, 3rd, 4th soft pack cell forms a soft pack cell pair, by that analogy, the pressure contact portion overbending direction of the lug of each soft pack cell centering two soft pack cells is oppositely arranged,
B. place on battery compartment top and to be made up of damping foam and to cover the vibration damper plate of soft pack cell, the centre of vibration damper plate arranges opening, the lug of soft pack cell is positioned at opening, then on vibration damper plate, insulation board is covered, as shown in Figure 4, insulation board comprises by the base bar of strip and the body of comb shape that integrally forms perpendicular to the tabula bar of base bar side, side bumper bar, side bumper bar is provided with the blocked hole corresponding with tabula bar, the free end of tabula bar is provided with the snap fit of bending, the side of the body of comb shape from the length direction of battery compartment is laterally moved to above vibration damper plate, tabula bar in body through adjacent two soft pack cells lug gap, then side bumper bar is fastened on the snap fit of tabula bar from side direction, certainly, now the pressure contact portion of lug should higher than the upper surface of insulation board.Preferably, blocked hole 521 is the clamping aperture 522 of rectangle and the shoulder hole of clamping macropore 523 serial connection formation, the overbending direction of the snap fit of adjacent tabula bar is contrary, and in the outer end of snap fit, chamfering is set, when side bumper bar tabula bar fastens, snap fit enters in clamping aperture, the chamfering that now snap fit outer end tilts is subject to pushing of clamping aperture thus makes side bumper bar to curving, then snap fit enters in clamping macropore through after clamping aperture, side bumper bar now resets, the snap fit of side bumper bar end then screens at the step place of blocked hole;
C. two pieces of lugs are fixed copper coin laterally to move to above insulation board from two sides of the length direction of battery compartment, as shown in Figure 5, lug is fixed compartment of terrain on copper coin and is provided with some lug perforation extending to a side, the opening part of lug perforation arranges chamfering thus forms V-arrangement opening, the V-arrangement opening that two pieces of lugs fix copper coin is positioned opposite, the V-arrangement opening part that in anode ear string, the upstanding portion of anode ear fixes lug perforation corresponding to copper coin from one piece of lug enters and is positioned in lug perforation, the V-arrangement opening part that in negative electrode lug string, the upstanding portion of negative electrode lug fixes lug perforation corresponding to copper coin from another block lug enters and is positioned in lug perforation, the pressure contact portion of lug exposes to lug and fixes copper coin upper surface with being inclined upwardly,
D. fix on copper coin at every block lug and cover the compression copper coin that a piece is provided with wiring component, and adopt threaded fastener to make compression copper coin and lug fix copper coin to be connected, the pressure contact portion of positive and negative lug is subject to compressing the extruding of copper coin and bends distortion and perpendicular with the vertical portion of positive and negative lug, now the pressure contact portion of positive and negative lug is compressed in corresponding compression copper coin and lug is fixed between copper coin respectively, then compress over cap copper coin covering and can insulate, thus form an independently electrokinetic cell module;
E. by being arranged on the wiring component compressed on copper coin, some electrokinetic cell modules are serially connected, thus form an electrokinetic cell.As shown in Figure 6; wiring component comprises compartment of terrain and is vertically arranged on the serial connection plate compressing two Binding post/studs on copper coin and rectangle; phase the same side of four sides of serial connection plate arranges the connection slot extended to another relative side respectively; connect the bottom semicircular in shape of slot; four centers of circle connecting the semicircular base of slot lay respectively on four summits of same rectangle; on over cap, corresponding Binding post/stud position arranges installation through hole, and the side of over cap arranges serial connection plate storage tank.When needing connection two electrokinetic cell modules, first an electrokinetic cell module is placed on the stationary platform, another electrokinetic cell module is placed on a mobile platform contour with fixed platform, this mobile platform mobile, the side making two electrokinetic cell modules be provided with Binding post/stud is close to each other, then by the connection slot on serial connection plate wherein on two relative sides respectively by the serial connection plate storage tank on two electrokinetic cell modules over cap close to each other, and make the connection slot on described two relative sides aim at the Binding post/stud being positioned at diagonal positions in two electrokinetic cell modules, four Binding post/studs close to each other, two Binding post/studs being positioned at diagonal positions described in making enter the connection slot be connected in series on plate on described two relative sides respectively, then continuing mobile mobile platform makes two electrokinetic cell module mutual dislocation move and close, serial connection plate now produces tilt rotation, another Binding post/stud on two electrokinetic cell modules can enter in the connection slot on serial connection plate on other two relative sides respectively, then be threaded a locking nut (not shown) on each Binding post/stud, serial connection plate can be fixed, thus make two electrokinetic cell modules be concatenated into an electrokinetic cell.
Embodiment 3: a kind of electric motor car, comprises electrokinetic cell, particularly, electrokinetic cell is connected in series by some electrokinetic cell modules and forms, and electrokinetic cell module wherein adopts the compression joint type power battery pack assembling structure described in embodiment 1.
Claims (10)
1. a compression joint type power battery pack assembling structure, comprise the battery compartment of upper opening, length direction along battery compartment is disposed side by side on some soft pack cells in battery compartment and over cap, the upside of described soft pack cell is provided with lug, lug is made up of the anode ear of sheet and negative electrode lug, it is characterized in that, the open side of described battery compartment is provided with two pieces of lugs and fixes copper coin, two pieces of lugs fix anode ear and the negative electrode lug that copper coin covers soft pack cell respectively, described lug is fixed and copper coin is provided with lug with corresponding position, lug position is bored a hole, the lug of described soft pack cell is bent to form after being each passed through lug perforation and abuts in lug and fix pressure contact portion on copper coin upper surface, lug is fixed copper coin and is provided with the compression copper coin compressing pressure contact portion, compression copper coin is fixed copper coin by threaded fastener and lug and is connected, described compression copper coin is also provided with wiring component, described over cap covers and compresses copper coin.
2. a kind of compression joint type power battery pack assembling structure according to claim 1, it is characterized in that, described wiring component comprises compartment of terrain and is vertically arranged on the serial connection plate compressing two Binding post/studs on copper coin and rectangle, the right side of four sides of described serial connection plate is respectively equipped with the connection slot extended to another relative side, the bottom semicircular in shape of described connection slot, four centers of circle connecting the semicircular base of slot lay respectively on four summits of same rectangle, two Binding post/studs are connected with a locking nut through after two connection slots of serial connection plate side, on described over cap, corresponding Binding post/stud position is provided with installation through hole, the side correspondence serial connection Board position of over cap is provided with serial connection plate storage tank.
3. a kind of compression joint type power battery pack assembling structure according to claim 1, it is characterized in that, described pressure contact portion is provided with the spherical surface hill of epirelief, and described compression copper coin is provided with spherical depression at corresponding spherical surface hill place, and the radius of described spherical depression is 1.1-1.3 with the ratio of the radius of spherical surface hill.
4. a kind of compression joint type power battery pack assembling structure according to claim 1 or 2 or 3, it is characterized in that, it is through that the lug lug perforation fixed on copper coin extends to the outer side edges of fixing copper coin with lug to battery compartment Width, thus form the little V-arrangement opening of a mouth imperial palace, the overbending direction that one piece of lug fixes the pressure contact portion of adjacent two anode ears on copper coin is contrary, the overbending direction that another block lug fixes the pressure contact portion of adjacent two negative electrode lugs on copper coin is contrary, described threaded fastener comprises and is arranged on the trip bolt that lug fixes the crimping group both sides that copper coin is made up of two pressure contact portions that overbending direction is relative.
5. a kind of compression joint type power battery pack assembling structure according to claim 1, it is characterized in that, fix between copper coin and soft pack cell at lug and be also provided with vibration damper plate and insulation board from bottom to up, described insulation board comprises by the base bar of strip and body, the side bumper bar of comb shape that integrally form perpendicular to the tabula bar of base bar side, described side bumper bar is provided with the blocked hole corresponding with tabula bar, the free end of tabula bar is provided with the snap fit of bending, and on body, the snap fit of each tabula bar is connected in blocked hole corresponding to side bumper bar.
6. a kind of compression joint type power battery pack assembling structure according to claim 1, is characterized in that, the corresponding pressure contact portion bending position in described positive and negative lug both sides is provided with bending detent, thus the positive and negative lug making flat is I shape.
7. a compression joint type power battery assembling method, is characterized in that, comprises the steps:
A. the lug of sheet on the soft pack cell of flat is bent into 95 degree of-100 degree and forms pressure contact portion, then the soft pack cell of even number is put into upper opening one by one and rectangular battery compartment spaced separation trough vertically, separation trough arranges along the length direction of battery compartment, anode ear in the lug of all soft pack cells is arranged in anode ear string, negative electrode lug in the lug of all soft pack cells is arranged in negative electrode lug string, and make the soft pack cell of the soft pack cell of odd indexed and follow-up adjacent even number sequence number form a soft pack cell pair, the pressure contact portion overbending direction of the lug of this soft pack cell centering two soft pack cells is oppositely arranged,
B. place on battery compartment top and to be made up of damping foam and to cover the vibration damper plate of soft pack cell, the centre of vibration damper plate arranges opening, the lug of soft pack cell is positioned at opening, then on vibration damper plate, insulation board is covered, insulation board comprises by the base bar of strip and the body of comb shape that integrally forms perpendicular to the tabula bar of base bar side, side bumper bar, side bumper bar is provided with the blocked hole corresponding with tabula bar, the free end of tabula bar is provided with the snap fit of bending, the side of the body of comb shape from the length direction of battery compartment is laterally moved to above vibration damper plate, tabula bar in body through adjacent two soft pack cells lug gap, then side bumper bar is fastened on the snap fit of tabula bar from side direction,
C. two pieces of lugs are fixed copper coin laterally to move to above insulation board from two sides of the length direction of battery compartment, lug is fixed compartment of terrain on copper coin and is provided with some lug perforation extending to a side, the opening part of lug perforation arranges chamfering thus forms V-arrangement opening, the V-arrangement opening that two pieces of lugs fix copper coin is positioned opposite, the V-arrangement opening part that in anode ear string, the upstanding portion of anode ear fixes lug perforation corresponding to copper coin from one piece of lug enters and is positioned in lug perforation, the V-arrangement opening part that in negative electrode lug string, the upstanding portion of negative electrode lug fixes lug perforation corresponding to copper coin from another block lug enters and is positioned in lug perforation, the pressure contact portion of lug exposes to lug and fixes copper coin upper surface with being inclined upwardly,
D. fix on copper coin at every block lug and cover the compression copper coin that a piece is provided with wiring component, and adopt threaded fastener to make compression copper coin and lug fix copper coin to be connected, the pressure contact portion of positive and negative lug is compressed in corresponding compression copper coin respectively and lug is fixed between copper coin, then compress over cap copper coin covering and can insulate, thus form an independently electrokinetic cell module;
E. by being arranged on the wiring component compressed on copper coin, some electrokinetic cell modules are serially connected, thus form an electrokinetic cell.
8. a kind of compression joint type power battery assembling method according to claim 7, it is characterized in that, described wiring component comprises compartment of terrain and is vertically arranged on the serial connection plate compressing two Binding post/studs on copper coin and rectangle, phase the same side of four sides of described serial connection plate is respectively equipped with the connection slot extended to another relative side, the bottom semicircular in shape of described connection slot, four centers of circle connecting the semicircular base of slot lay respectively on four summits of same rectangle, on described over cap, corresponding Binding post/stud position is provided with installation through hole, the side of over cap is provided with serial connection plate storage tank, when needing connection two electrokinetic cell modules, first an electrokinetic cell module is placed on the stationary platform, another electrokinetic cell module is placed on a mobile platform contour with fixed platform, this mobile platform mobile, the side making two electrokinetic cell modules be provided with Binding post/stud is close to each other, then by the connection slot on serial connection plate wherein on two relative sides respectively by the serial connection plate storage tank on two electrokinetic cell modules over cap close to each other, and make the connection slot on described two relative sides aim at the Binding post/stud being positioned at diagonal positions in two electrokinetic cell modules, four Binding post/studs close to each other, two Binding post/studs being positioned at diagonal positions described in making enter the connection slot be connected in series on plate on described two relative sides respectively, then continuing mobile mobile platform makes two electrokinetic cell module mutual dislocation move and close, serial connection plate now produces tilt rotation, another Binding post/stud on two electrokinetic cell modules can enter in the connection slot on serial connection plate on other two relative sides respectively, then be threaded a locking nut on each Binding post/stud, serial connection plate can be fixed, thus make two electrokinetic cell modules be concatenated into an electrokinetic cell.
9. a kind of compression joint type power battery assembling method according to claim 7 or 8, it is characterized in that, described blocked hole is the clamping aperture of rectangle and the shoulder hole of clamping macropore serial connection formation, the overbending direction of the snap fit of adjacent tabula bar is contrary, and be provided with chamfering in the outer end of snap fit, when side bumper bar and tabula bar fasten, snap fit enters in clamping aperture, the chamfering that now snap fit outer end tilts is subject to pushing of clamping aperture thus makes side bumper bar to curving, then snap fit enters in clamping macropore through after clamping aperture, side bumper bar now resets, the snap fit of side bumper bar end then screens at the step place of blocked hole.
10. an electric motor car, is characterized in that: the compression joint type power battery pack assembling structure described in any one comprising claim 1-6.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195841A (en) * | 2017-05-23 | 2017-09-22 | 深圳吉阳智能科技有限公司 | The attachment structure and connection method of lug and pole |
| CN107665967A (en) * | 2016-07-27 | 2018-02-06 | 无锡丰晟科技有限公司 | A kind of lithium battery series parallel structure connecting plate and lithium battery |
| CN108134038A (en) * | 2018-02-11 | 2018-06-08 | 北斗航天汽车（北京）有限公司 | Soft bag lithium ionic cell module and electric vehicle |
| CN110446343A (en) * | 2019-07-31 | 2019-11-12 | 苍南县磊铭电动车有限公司 | A kind of soft package lithium battery assembling tab PCB and its technique |
| CN111001927A (en) * | 2020-01-06 | 2020-04-14 | 盐城国投中科新能源科技有限公司 | Battery cell tab fixing mechanism |
| WO2021031797A1 (en) * | 2019-08-20 | 2021-02-25 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN113258186A (en) * | 2021-05-14 | 2021-08-13 | 中为联合创新(平潭)工程研究有限公司 | Power supply system of bipolar welding-free battery cell |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0802580A1 (en) * | 1996-04-18 | 1997-10-22 | Erico International Corporation | Electrical clip and method |
| CN102842695A (en) * | 2011-06-23 | 2012-12-26 | 三星Sdi株式会社 | Battery pack |
| CN102856515A (en) * | 2011-06-28 | 2013-01-02 | 林永珅 | Bearing part and battery assembling structure using same |
| CN102931374A (en) * | 2011-08-08 | 2013-02-13 | 三星Sdi株式会社 | Rechargeable battery and method for fabricating the same |
| CN204155991U (en) * | 2014-09-28 | 2015-02-11 | 山东神工海特电子科技有限公司 | Exempt from spot welding soft package lithium battery parallel module |
| CN204927439U (en) * | 2015-09-16 | 2015-12-30 | 浙江超威创元实业有限公司 | Crimping formula power battery package assembly and electric motor car |
-
2015
- 2015-09-16 CN CN201510589917.4A patent/CN105244467B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0802580A1 (en) * | 1996-04-18 | 1997-10-22 | Erico International Corporation | Electrical clip and method |
| CN102842695A (en) * | 2011-06-23 | 2012-12-26 | 三星Sdi株式会社 | Battery pack |
| CN102856515A (en) * | 2011-06-28 | 2013-01-02 | 林永珅 | Bearing part and battery assembling structure using same |
| CN102931374A (en) * | 2011-08-08 | 2013-02-13 | 三星Sdi株式会社 | Rechargeable battery and method for fabricating the same |
| CN204155991U (en) * | 2014-09-28 | 2015-02-11 | 山东神工海特电子科技有限公司 | Exempt from spot welding soft package lithium battery parallel module |
| CN204927439U (en) * | 2015-09-16 | 2015-12-30 | 浙江超威创元实业有限公司 | Crimping formula power battery package assembly and electric motor car |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107665967A (en) * | 2016-07-27 | 2018-02-06 | 无锡丰晟科技有限公司 | A kind of lithium battery series parallel structure connecting plate and lithium battery |
| CN107195841A (en) * | 2017-05-23 | 2017-09-22 | 深圳吉阳智能科技有限公司 | The attachment structure and connection method of lug and pole |
| CN107195841B (en) * | 2017-05-23 | 2020-07-28 | 深圳吉阳智能科技有限公司 | Connection structure and connection method of pole lug and pole column |
| CN108134038A (en) * | 2018-02-11 | 2018-06-08 | 北斗航天汽车（北京）有限公司 | Soft bag lithium ionic cell module and electric vehicle |
| CN110446343A (en) * | 2019-07-31 | 2019-11-12 | 苍南县磊铭电动车有限公司 | A kind of soft package lithium battery assembling tab PCB and its technique |
| WO2021031797A1 (en) * | 2019-08-20 | 2021-02-25 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN111001927A (en) * | 2020-01-06 | 2020-04-14 | 盐城国投中科新能源科技有限公司 | Battery cell tab fixing mechanism |
| CN113258186A (en) * | 2021-05-14 | 2021-08-13 | 中为联合创新(平潭)工程研究有限公司 | Power supply system of bipolar welding-free battery cell |
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|---|---|
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