WO2017073319A1 - 電池モジュールと電気機器の接続構造 - Google Patents
電池モジュールと電気機器の接続構造 Download PDFInfo
- Publication number
- WO2017073319A1 WO2017073319A1 PCT/JP2016/080213 JP2016080213W WO2017073319A1 WO 2017073319 A1 WO2017073319 A1 WO 2017073319A1 JP 2016080213 W JP2016080213 W JP 2016080213W WO 2017073319 A1 WO2017073319 A1 WO 2017073319A1
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- WIPO (PCT)
- Prior art keywords
- connection
- battery module
- welding
- bus bar
- plate
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/029—Welded connections
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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
- H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
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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
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
- H01M50/522—Inorganic material
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the technology disclosed in this specification relates to a structure for electrically connecting a battery module and another electric device.
- connection bus bar is known (for example, Patent Document 1 below).
- the height position of the electrode of the battery module and the connection portion of the electric device are different (for example, the connection portion of the electric device is higher than the electrode of the battery module).
- an L-shaped welding plate having a flat welding surface is retrofitted to the distal end of the connection bus bar by ultrasonic welding or the like, and the base end of the connection bus bar is fastened and fixed to the connection portion of the electric device with a fastening member, Means for mounting the welding surface of the welding plate on the electrode of the battery module and fixing it by laser welding has been proposed.
- the welding surface of the welding plate is laser-welded to the electrode of the battery module, the welding surface is usually pressed using a jig.
- tool there is a risk of positional deviation such as variations in the spacing or tilting of the weld surface. If it does so, even if it presses with a jig
- misalignment between the welding surface of the weld plate and the counterpart electrode may occur in the same manner due to a dimensional tolerance of the weld plate or the like, an arrangement tolerance between the battery module and the electric device, or the like.
- the technology disclosed in the present specification has been completed based on the above circumstances, and the purpose thereof is to be able to firmly weld the welding plate provided on the connection bus bar to the connection electrode of the other battery module. There is a place to do so.
- the battery module and electrical device connection structure disclosed in this specification connects a battery module connected in a state in which a plurality of single cells are arranged, and an electrical device disposed on the side of the battery module.
- a connection structure between the battery module and the electric device The connection part provided in the electric device, the connection electrode provided in the battery module, one end is connected to the connection part of the electric device, and the other end is welded to the connection electrode of the battery module.
- a connection bus bar provided with a weld plate that is elastically deformable to maintain the weld surface of the weld plate and the connection electrode of the battery module in contact with each other. It is the structure by which the various deformation
- the welding surface of the welding plate When the welding surface of the welding plate is brought into contact with the mating connection electrode, even if there is a deviation between the two, the welding surface and the connection electrode are brought into contact with each other while the deformation allowing portion is elastically deformed. Maintained. As a result, the welding plate provided on the connection bus bar can be firmly welded and connected to the connection electrode of the counterpart battery module.
- transformation permission part is the groove-shaped recessed part which makes the bent shape formed in the width direction whole region of the said welding plate. Unlike the case where the opening is punched out or thinned to allow elastic deformation, the cross-sectional area is unchanged, so that the resistance during electrical distribution is kept small and the conductivity is excellent.
- the weld plate is formed separately from the connection bus bar by a thin plate material thinner than the connection bus bar. It is easy to process the deformation allowance provided on the weld plate.
- the welding plate can be accommodated in an insulating holding member mounted on the upper surface of the connection electrode of the battery module, and the elastic deformation of the deformation allowing portion is between the welding plate and the holding member.
- a restricting portion for restricting the backward deformation of the welded plate based on the above is provided. After the welding, when the backward deformation that causes the welding surface to peel off from the welded plate is prompted by the restoring elasticity of the deformation allowing portion, the backward deformation is restricted by the restricting portion. As a result, a strong welded state is maintained.
- the welding plate is formed in an L-shape provided in a form in which the welding surface protrudes forward at the tip of a vertical surface extending perpendicularly in the vertical direction from the tip of the connection bus bar. A deformation allowing portion is provided.
- the present invention can be effectively applied when the height positions of the connection electrode of the battery module and the connection portion of the electric device are different.
- the welding plate provided on the connection bus bar can be firmly welded to the connection electrode of the counterpart battery module.
- the battery module 20 is mounted on a vehicle (not shown) such as an electric vehicle or a hybrid vehicle and used as a power source for driving the vehicle,
- a vehicle such as an electric vehicle or a hybrid vehicle
- arranged to the side of the battery module 20, is illustrated.
- the battery module 20 has a wiring module 30 mounted on the upper surface of a unit cell group 21 formed by arranging a plurality (nine illustrated examples) of unit cells 22 as shown in FIG. Consists of.
- each unit cell 22 constituting the unit cell group 21 has a flat rectangular parallelepiped shape, and a pair of electrode terminals 23 are disposed on the upper surface at positions close to both ends in the length direction. ing.
- One of the electrode terminals 23 is a positive electrode terminal 23A, and the other is a negative electrode terminal 23B.
- Each electrode terminal 23 is made of metal and is provided so as to protrude in a rectangular tube shape as shown in FIG. 10, and a contact surface 24 is formed in a higher shape at the center of the upper surface. .
- the unit cell 22 includes two adjacent unit cells 22 such that the electrode terminals 23 having different polarities are adjacent to each other, that is, the positive terminal 23 ⁇ / b> A of one unit cell 22 and the adjacent one.
- the other battery cells 22 are arranged so as to be adjacent to each other.
- a rectangular positioning recess 26 for fitting a positioning protrusion 47 of an insulating protector 40 which will be described later is provided.
- one electrode terminal 23 (upper side in FIG. 1) of the unit cells 22 arranged at the end of the unit cell group 21 is used as a connection electrode 23 ⁇ / b> X connected to the electric device 10.
- the wiring module 30 includes a synthetic resin insulating protector 40 (see FIG. 2) and an interelectrode connection bus bar 35 (held between the insulating protector 40 and connecting the positive terminal 23A and the negative terminal 23B of the adjacent unit cells 22 to each other.
- a synthetic resin insulating protector 40 see FIG. 2
- an interelectrode connection bus bar 35 held between the insulating protector 40 and connecting the positive terminal 23A and the negative terminal 23B of the adjacent unit cells 22 to each other.
- it is configured to include simply a bus bar 35), a voltage detection terminal (not shown) and the like that are placed on the bus bar 35 and electrically connected thereto.
- the bus bar 35 is formed by pressing a metal plate, and has a substantially rectangular shape in plan view as shown in FIG.
- a widened portion 36 is formed at the center in the length direction of the bus bar 35, and a voltage detection terminal is fixed on the widened portion 36 in an overlapping manner.
- the insulation protector 40 is configured by connecting two unit protectors 41A and 41B shown in the figure.
- a pair of bus bar holding portions 43 are formed along both side edges in the width direction (upper and lower side edges in the figure), and the inside of each bus bar holding portion 43 (in the width direction).
- a pair of wire receiving grooves 44 are formed on the center side.
- Each bus bar holding portion 43 has a structure in which four rectangular cylindrical storage walls 50 that can store the bus bar 35 and two adjacent electrode terminals 23 from above and below are arranged in the length direction.
- the pair of bus bar holding portions 43 are arranged so as to be shifted in the length direction by the size of one electrode terminal 23.
- a flat plate-like substrate 46 is formed between the pair of wire receiving grooves 44 so as to connect the lower surfaces of the wire receiving grooves 44 to each other.
- two rectangular positioning protrusions 47 that are fitted into the positioning recess 26 face downward at a position corresponding to the positioning recess 26 of the unit cell 22 in a state in which the insulation protector 40 is assembled to the unit cell group 21. Is formed to protrude.
- a receiving portion 52 for receiving the edge of the short side of the bus bar 35 is formed on the opposing surface of both short walls, and the center in the length direction of both long walls.
- a partition wall 53 is formed at the same height as the receiving portion 52 so as to extend between the portions.
- An elastic retaining piece 55 is formed on the opposing surfaces of the long walls to elastically engage with the long side edge of the bus bar 35 to prevent the bus bar 35 from coming off.
- the long wall adjacent to the wire receiving groove 44 has a wire lead-out groove 45 for leading a detection wire (not shown) connected to the voltage detection terminal to the wire receiving groove 44 side at the center in the length direction. Is formed.
- the bus bar 35 is pushed from above by elastically deforming the elastic retaining piece 55 while being guided by the housing wall 50, and is pushed upward until it hits the receiving portion 52 and the partition wall 53. (See FIG. 8).
- the bus bar 35 is in a state where an area between the receiving portion 52 and the partition wall 53 on the back surface is exposed downward.
- connection bus bar 60 an inter-component connection bus bar 60 (hereinafter referred to as connection bus bar 60), which will be described in detail later.
- connection bus bar 60 is formed on the same plane as the substrate 46.
- the mounting portion 57 has an electrode insertion hole 58 through which the connection electrode 23X of the unit cell 22 at the end portion described above is inserted almost tightly from below, and both the upper and lower sides of the electrode insertion hole 58 in FIG. A pair of positioning pins 59 are erected.
- the battery module 20 is assembled as follows, for example. First, the wiring module 30 is assembled, and each bus bar 35 is accommodated and held in the bus bar holding portion 43 (accommodating wall 50) of the insulation protector 40, and provided on the upper surface of the bus bar 35 at the end of the detection wire. A voltage detection terminal (not shown) is fixed by welding or the like, and the drawn-out detection wire is routed from the wire lead-out groove 45 along the wire housing groove 44.
- the wiring module 30 assembled in this way is mounted on the upper surface of the unit cell group 21 while the positioning protrusion 47 is fitted in the positioning recess 26. Accordingly, the electrode terminal 23 of the unit cell 22 enters the housing wall 50 from below and comes into contact with the lower surface of the bus bar 35. By irradiating the bus bar 35 with a laser, the bus bar 35 and the electrode terminal 23 are connected. Weld by laser welding. Further, as the wiring module 30 is mounted, the connection electrode 23X of the predetermined unit cell 22 passes through the electrode insertion hole 58 of the mounting portion 57 of the insulating protector 40 and projects upward. Thereby, the assembly of the battery module 20 is completed, and the battery module 20 is installed at a predetermined position in the vehicle.
- an electric device 10 is arranged at a predetermined position on the side of the battery module 20.
- a connecting portion 11 is erected at a corner portion on the upper surface of the electric device 10.
- a connection bus bar 60 electrically connects the connection portion 11 of the electrical device 10 and the connection electrode 23 ⁇ / b> X standing on a predetermined unit cell 22 of the battery module 20.
- connection part 11 of the electric device 10 is made of metal and is provided so as to protrude in a rectangular tube shape that is slightly larger than the electrode terminal 23 of the unit cell 22 as shown in FIGS.
- the fastening surface 12 is formed in a form that is one step higher.
- Bolt holes 13 are formed in the fastening surface 12.
- the connection part 11 of the electrical device 10 is on an extension line in the arrangement direction of the electrode terminals 23 on one side (upper side in FIG. 1) in the unit cell group 21, and as shown in FIG. 10, the fastening surface of the connection part 11 12 is set to be higher in the predetermined dimension than the contact surface 24 of the connection electrode 23X of the unit cell 22 described above.
- connection bus bar 60 is formed by pressing a metal plate, and as shown in FIGS. 4 and 5, as shown in FIGS. 4 and 5, the connection bus bar 60 has a belt-like shape having a predetermined length that is slightly shorter than the distance between the battery module 20 and the electric device 10. Is formed.
- the material is preferably aluminum or an aluminum alloy in order to reduce the weight.
- connection bus bar 60 The base end portion of the connection bus bar 60 is fastened to the connection portion 11 of the electrical device 10, and a bolt insertion hole 61 through which the bolt 15 is inserted is opened at the base end portion of the connection bus bar 60. ing. In addition, a positioning hole 62 (see FIG. 10) made of a round hole is opened at the tip of the connection bus bar 60.
- a welding plate 70 is provided that is connected to the connection electrode 23X of the unit cell 22 by welding.
- the weld plate 70 is formed by pressing a metal plate that is thinner than the connection bus bar 60 into a predetermined shape.
- the material is preferably copper or a copper alloy in consideration of conductivity and the like.
- the welding plate 70 includes a mounting surface 71 that is in contact with the rear surface of the front end portion of the connection bus bar 60, a drooping surface 72 that is bent at a right angle downward from the front end edge, and a lower surface thereof. It is formed in a crank shape (L-shape excluding the mounting surface 71) having a welding surface 73 bent at a right angle from the edge toward the front. As shown in FIG. 4, the mounting surface 71 and the hanging surface 72 of the weld plate 70 have the same width as that of the connection bus bar 60, and the welding surface 73 projects and widens on one side edge (lower edge of FIG. 4). ing. The overhanging portion of the welding surface 73 is used as a pressing portion 74 of the jig. A positioning hole 75 (see FIG. 10) that matches the positioning hole 62 of the connection bus bar 60 is formed in the mounting surface 71.
- the welding plate 70 has a dimensional difference in the height direction between the fastening surface 12 of the connection portion 11 of the electrical device 10 and the contact surface 24 of the connection electrode 23X of the unit cell 22. Therefore, the height dimension of the drooping surface 72 is set corresponding to the dimension difference in the height direction.
- the welding plate 70 is fixed by ultrasonic welding with the mounting surface 71 applied to the back surface of the front end portion of the connection bus bar 60 in a state where the positioning holes 75 and 62 are aligned with each other (see FIG. 5). Accordingly, as will be described in detail later, as shown in FIG.
- the welding surface of the welding plate 70. 73 is set to contact the contact surface 24 of the connection electrode 23 ⁇ / b> X of the unit cell 22.
- a groove-like recessed portion 77 extending in a direction crossing the hanging surface 72 in a form of being dented and bent on the back surface side is located at a position near the upper edge of the surface. It is formed over.
- the groove-shaped recess 77 corresponds to a “deformation allowable portion”.
- a pair of restricting pieces 79 are formed on the left and right vertical edges of the bottom surface 72 of the weld plate 70 at a position below the groove-shaped recess 77.
- a holding member 80 capable of accommodating and holding the tip including the weld plate 70 in the connection bus bar 60 is provided.
- the holding member 80 is made of a synthetic resin, and is formed in a box shape having a generally upper surface opening that is placed on the placement portion 57 of the insulating protector 40 as shown in FIGS. 6 and 10. More specifically, as shown in FIG. 10, the holding member 80 is formed so that the upper side of the surface facing the electric device 10 is projected (projecting portion 82), and as shown in FIG.
- the side wall is a double wall portion 84 composed of an inner wall 85A and an outer wall 85B. The corresponding interval between the inner walls 85 ⁇ / b> A of the left and right double wall portions 84 is the same as the width of the connection bus bar 60.
- An electrode insertion hole 88 through which the connection electrode 23X of the unit cell 22 can be inserted is opened on the bottom surface of the main body box portion 81 of the holding member 80, and on the bottom surface of the double wall portion 84 of the main body box portion 81, A positioning hole 89 into which a positioning pin 59 standing on the mounting portion 57 of the insulating protector 40 is inserted is formed.
- the upper edge of one (upper side in FIG. 6) inner wall 85A remains at a position slightly lower than the bottom surface of the overhang portion 82, as shown in FIG.
- the upper edge of the other inner wall 85A (lower side in FIG. 6) is further lowered downward in order to avoid interference with the weld surface 73 of the weld plate 70.
- a positioning hole 62 opened at the tip of the connection bus bar 60 and a positioning hole 75 opened in the attachment surface 71 of the weld plate 70 are inserted into the bottom surface of the overhanging portion 82.
- the pin 91 is erected, and on the opposite surface of the inner wall 85 ⁇ / b> A of the overhanging portion 82, the pin 91 is elastically locked to both side edges of the front end portion of the connection bus bar 60 and is pulled upward.
- a pair of elastic retaining pieces 92 for stopping are provided.
- a restriction piece 79 is formed on the inner wall 85A of the double wall portion 84 of the main body box portion 81 so as to project from both side edges of the hanging surface 72 of the weld plate 70 at a position close to the projecting portion 82 side.
- a restriction groove 94 that can be inserted from above is formed.
- the holding member 80 for the connection bus bar 60 is mounted on the mounting portion 57 of the insulating protector 40 constituting the wiring module 30.
- the holding member 80 is pushed in until the contact with the mounting portion 57 while aligning the positioning hole 89 on the bottom surface with the positioning pin 59.
- the holding member 80 is properly placed on the mounting portion 57, as shown in FIG. Protrudes through the electrode insertion hole 88 to the bottom of the main body box 81.
- connection bus bar 60 is passed between the battery module 20 and the electric device 10.
- the tip of the connection bus bar 60 is inserted into the holding member 80 from above with the weld plate 70.
- the distal end portion of the connection bus bar 60 and the attachment surface 71 of the welding plate 70 stretched on the rear surface thereof are positioned by inserting the positioning pins 91 into the positioning holes 62 and 75. And are accommodated so as to be sandwiched between the opposed inner walls 85A of the overhanging portion 82.
- the restriction pieces 79 that are formed to protrude on both side edges of the drooping surface 72 are guided downward along the restriction grooves 94 formed in the opposing inner wall 85 ⁇ / b> A of the main body box portion 81, while the welding surface 73.
- the welding surface 73 is connected to the connection electrode 23X.
- the elastic retaining pieces 92 provided on the double wall portion 84 of the projecting portion 82 are engaged with both side edges of the distal end portion of the connection bus bar 60, so Stop is planned.
- the connection end 11 of the electric device 10 is fastened with the base end portion of the connection bus bar 60 aligned with the bolt insertion hole 61 and the bolt hole 13. It is placed on the surface 12.
- the laser irradiation device (not shown) irradiates the welding surface 73 with a laser, whereby the welding surface 73 and the contact surface 24 are welded by laser welding.
- the welding plate 70 provided at the tip and the connection electrode 23X are fixed by welding.
- the connection structure 100 is constructed in which the connection electrode 23 ⁇ / b> X of the battery module 20 and the connection portion 11 of the electric device 10 are electrically connected using the connection bus bar 60.
- a welding plate 70 formed in a crank shape as a separate member is ultrasonically applied to the distal end portion of the connection bus bar 60. Since a structure retrofitted by welding is employed, the dimension between the connection bus bar 60 and the welding surface 73 of the welding plate 70 varies depending on the welding condition or the like, or the welding plate 70 is fixed in an inclined posture. There is a risk.
- the welding surface 73 of the welding plate 70 is connected to the connection electrode 23X for laser welding.
- a gap may be formed between the welding surface 73 of the welding plate 70 and the contact surface 24 of the connection electrode 23X.
- the pressing portion 74 is pressed with a jig.
- the groove-like recess 77 of the drooping surface 72 is elastically widened and deformed, while the drooping surface 72 extends in the direction of the arrow A, and the welding surface 73 is displaced in the horizontal direction (arrow B direction).
- the welding surface 73 takes a horizontal posture, and similarly, the welding surface 73 closely contacts the entire contact surface 24 of the connection electrode 23X.
- the welding surface 73 of the welding plate 70 is opposed to the contact surface 24 of the connection electrode 23X for laser welding, the welding surface 73 of the welding plate 70 and the connection electrode 23X are opposite to the above.
- a negative gap may be formed between the contact surface 24 and the contact surface 24.
- the groove-like recess 77 of the hanging surface 72 is elastically deformed so as to narrow the groove width, while the hanging surface 72 is in the vertical direction. It shrinks and deforms (in the direction of arrow A in FIG. 11), and does not overload the welding surface 73, and precisely contacts the entire contact surface 24 of the connection electrode 23X.
- the groove-like concave portion of the drooping surface 72 can also be used when the tip end side of the welding surface 73 is inclined obliquely downward and a negative gap is formed with the contact surface 24 of the connection electrode 23X.
- 77 is elastically deformed so as to narrow the groove width, and the drooping surface 72 contracts in the direction of arrow A, or the welding surface 73 is displaced in the horizontal direction (arrow B direction).
- the horizontal posture is taken without being overloaded, and the welding surface 73 is also closely in contact with the entire contact surface 24 of the connection electrode 23X.
- the positional deviation between the welding surface 73 of the welding plate 70 and the contact surface 24 of the mating connection electrode 23X is caused by dimensional tolerances of parts such as the welding plate 70 or between the battery module 20 and the electric device 10.
- the drooping surface 72 expands and contracts in the direction of the arrow A, and the welding surface 73 has the arrow B.
- the displacement is absorbed while displacing in the direction, and the welding surface 73 is accurately brought into close contact over the entire contact surface 24 of the connection electrode 23X.
- the welding plate 70 provided on the connection bus bar 60 can be firmly welded to the connection electrode 23X of the other battery module 20.
- the welding surface 73 of the welding plate 70 when laser welding is performed in a state where the welding surface 73 of the welding plate 70 is in close contact with the contact surface 24 of the connection electrode 23X with the elastic deformation of the groove-shaped recess 77, the groove As the concave portion 77 is about to be restored and deformed, for example, the welding surface 73 may be displaced in the direction of the arrow B in FIG. 11 to peel off the welded portion.
- the restriction pieces 79 on both side edges of the drooping surface 72 are fitted into the restriction grooves 94 of the double wall portion 84, so that the welding surface 73 is restricted from being displaced in the same direction. It is possible to prevent the welded part from peeling off.
- the welding surface 73 of the welding plate 70 fixed to the distal end portion of the connection bus bar 60 to the contact surface 24 of the mating connection electrode 23X before laser welding. Even if there is a deviation between the two, the deviation is absorbed along with the elastic deformation of the groove-like recess 77 provided on the hanging surface 72 of the weld plate 70, and the welding surface 73 is brought into contact with the connection electrode 23X. The entire surface 24 can be accurately brought into close contact. As a result, the welding plate 70 provided on the connection bus bar 60 can be firmly welded and connected to the connection electrode 23X of the mating battery module 20.
- the groove-shaped recess 77 is employed as the “deformation allowable portion”. Unlike the case of punching an opening in the welding plate 70 to allow elastic deformation and thinning, the cross-sectional area does not change with this structure, so that the resistance during electrical distribution is kept small, Excellent conductivity.
- a regulating piece 79 is formed on both side edges of the drooping surface 72 of the welding plate 70, and the regulating piece 79 is fitted into a regulating groove 94 provided on the double wall of the holding member 80, so that the welding surface of the welding plate 70 is provided.
- Means for restricting the displacement of 73 in the front-rear direction (arrow B direction in FIG. 11) is taken. That is, when laser welding is performed in a state where the welding surface 73 of the welding plate 70 is in close contact with the contact surface 24 of the connection electrode 23X with elastic deformation of the groove-shaped recess 77, the groove-shaped recess 77 is restored.
- the welding surface 73 may be displaced back and forth to peel off the welded portion, but in this embodiment, the welding surface 73 is displaced in the same direction by adopting the above-mentioned regulating means. To prevent the welded portion from peeling off.
- connection procedure between the battery module and the electric device exemplified in the above embodiment is merely an example.
- the welding plate provided at the tip of the connection bus bar is first held by the holding member and then held.
- the member can be changed as appropriate, for example, by mounting the member on the mounting portion on the battery module side.
- the welding plate is formed as a separate body and retrofitted to the connection bus bar.
- the welding plate may be integrally formed at the tip of the connection bus bar.
- the present disclosure can be similarly applied because a deviation between the welded surface of the welded plate and the contact surface of the connection electrode can occur due to the dimensional tolerance or the arrangement tolerance of the parts. .
- the groove-shaped concave portion that is the deformation-permitting portion is not limited to the rectangular cross section of the above-described embodiment, and may have another cross-sectional shape such as a trapezoid. Moreover, you may provide a groove-shaped recessed part over multiple steps in a height direction.
- the means for allowing deformation of the weld plate is not limited to the groove-shaped recess exemplified in the above embodiment, and other means such as punching the opening or making it thin may be employed.
- connection bus bar becomes the “connection electrode”.
- the electric device disposed on the side of the battery module may be another electric device such as a junction box in addition to the inverter, or may be another battery module.
- connection form there is a form in which one battery module is connected to a relay bus bar in a unit in which a plurality of battery modules are connected by a relay bus bar.
- the unit corresponds to “electric equipment”
- the relay bus bar corresponds to “connecting portion”.
- a conductive member such as a relay bus bar arranged in an electric device is regarded as an “electric device connecting portion”, and such a configuration is also included in the technical scope.
- the structure for restricting the displacement of the weld surface in the direction along the plate surface is exemplified as the restricting portion for restricting the backward deformation of the weld plate. Any other structure is acceptable as long as it can regulate the backward deformation of the welded plate to prevent the welded surface from peeling off, such as regulating the vertical movement of the vertical surface between the holding member and the holding member. It may be.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Inorganic Chemistry (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
本明細書に開示される技術は上記のような事情に基づいて完成されたものであって、その目的は、接続バスバーに設けた溶接板を相手の電池モジュールの接続用電極に強固に溶接できるようにするところにある。
前記電気機器に設けられた接続部と、前記電池モジュールに設けられた接続用電極と、一端が前記電気機器の前記接続部に接続され、他端に前記電池モジュールの前記接続用電極に溶接される溶接板が設けられた接続バスバーと、が具備され、前記溶接板には、当該溶接板の溶接面と、前記電池モジュールの前記接続用電極とを当接状態に維持させるための弾性変形可能な変形許容部が設けられている構成である。
前記変形許容部が、前記溶接板の幅方向全域に形成された屈曲した形状をなす溝状凹部である。
弾性的な変形を許容するために開口を打ち抜いたり、薄肉にした場合と違って、断面積が不変であるから、電気流通時の抵抗が小さく留められ、導電性に優れたものとなる。
溶接板に設ける変形許容部の加工がしやすい。
溶接後に、変形許容部の復元弾力により溶接板に対して溶接面が剥がれるような復動変形が促された場合、規制部により復動変形が規制される。結果、強固な溶接状態が維持される。
電池モジュールの接続用電極と電気機器の接続部との高さ位置が相違している場合に有効に適用できる。
実施形態を図1ないし図12によって説明する。本実施形態では、図8及び図9に示すように、電気自動車又はハイブリッド車等の車両(図示せず)に搭載されて、車両を駆動するための動力源として使用される電池モジュール20と、同電池モジュール20の側方に配されたインバータ等の電気機器10と、を電気接続する部分に適用した場合を例示している。
図1に示すように、単電池群21を構成する各単電池22は扁平な直方体状をなし、その上面には、長さ方向の両端部寄りの位置に、一対の電極端子23が配置されている。電極端子23のうち一方は正極端子23Aであり、他方は負極端子23Bである。各電極端子23は金属製であって、図10に示すように、角筒状に突出して設けられており、上面の中央部には当接面24が一段高くなった形態で形成されている。
各単電池22の上面における一対の電極端子23の間には、後記する絶縁プロテクタ40の位置決め突部47を嵌合するための方形の位置決め凹部26が設けられている。
ここで、単電池群21における端部に配された単電池22の一方(図1の上側)の電極端子23が、電気機器10と接続される接続用電極23Xとされている。
絶縁プロテクタ40の全体構造としては、幅方向の両側縁(同図の上下の側縁)に沿って一対のバスバー保持部43が形成されているとともに、各バスバー保持部43の内側(幅方向の中心側)に、一対の電線収容溝44が形成されている。各バスバー保持部43は、バスバー35並びに隣り合う2個の電極端子23をそれぞれ上下から収容可能な角筒状の収容壁50が、長さ方向に4個並べて配された構造である。一対のバスバー保持部43は、電極端子23の1個分の寸法だけ長さ方向にずれて配されている。
また、配線モジュール30の装着に伴い、所定の単電池22の接続用電極23Xが、絶縁プロテクタ40の載置部57の電極挿通孔58を通って、その上方に突出した形態を採る。
これにより電池モジュール20の組み立てが完了し、同電池モジュール20は車両内の所定位置に設置される。
電気機器10の接続部11は、単電池群21における一側(図1の上側)の電極端子23の並び方向の延長線上にあり、かつ図10に示すように、同接続部11の締結面12の方が、上記の単電池22の接続用電極23Xの当接面24と比べて、所定寸法高位置に来る設定となっている。
溶接板70は、位置決め孔75,62同士を整合させた状態で取付面71が接続バスバー60の先端部の裏面に当てられ、超音波溶接することで固着されている(図5参照)。したがって、詳しくは後記するが、図10に参照して示すように、接続バスバー60の基端部が電気機器10の接続部11の締結面12に載せられた場合に、溶接板70の溶接面73が単電池22の接続用電極23Xの当接面24に当たるように設定されている。
また、溶接板70の垂下面72における左右の縦縁には、上記の溝状凹部77よりも下方位置において、一対の規制片79が張り出し形成されている。
また、本体箱部81の二重壁部84における内壁85Aには、その張出部82側に寄った位置に、上記した溶接板70の垂下面72の両側縁に張り出し形成された規制片79が上方から挿通可能な規制溝94が形成されている。
まず、接続バスバー60用の保持部材80を、配線モジュール30を構成する絶縁プロテクタ40の載置部57上に装着する。保持部材80は、底面の位置決め孔89を位置決めピン59に合わせつつ、載置部57に当たるまで押し込まれ、載置部57上に正規に載せられたら、図10に示すように、接続用電極23Xが、電極挿通孔88を通して本体箱部81内の底部に突出する。
上記のように接続バスバー60の先端側の収容が完了したところで、接続バスバー60の基端部が、ボルト挿通孔61とボルト孔13とが整合した状態で、電気機器10の接続部11の締結面12の上に載せられる。
一方、接続バスバー60の先端部に設けられた溶接板70側では、溶接面73に張り出し形成された押圧部74を治具で押さえて、溶接面73を接続用電極23Xの当接面24に密接させ、係る状態から、レーザー照射装置(図示せず)により溶接面73に向けてレーザーを照射することによって、溶接面73と当接面24とがレーザー溶接により溶接され、ひいては接続バスバー60の先端に設けられた溶接板70と、接続用電極23Xとの間が溶接により固定される。
以上により、電池モジュール20の接続用電極23Xと、電気機器10の接続部11とを、接続バスバー60を用いて電気的に接続した接続構造100が構築される。
また、溶接面73の先端側が斜め下方を向いた傾斜姿勢を採って、接続用電極23Xの当接面24との間に負の隙間ができたような場合も、垂下面72の溝状凹部77が溝幅を狭めるように弾性的に変形して、垂下面72が矢線A方向に縮んだり、溶接面73が水平方向(矢線B方向)に変位したりしながら、溶接面73は過負荷を受けることなく水平姿勢を採り、同じく溶接面73が接続用電極23Xの当接面24の全面に亘って正確に密接する。
その結果、接続バスバー60に設けた溶接板70を相手の電池モジュール20の接続用電極23Xに強固に溶接することができる。
それに対して本実施形態では、垂下面72の両側縁の規制片79が、二重壁部84の規制溝94に嵌ることによって、溶接面73が同方向に変位することが規制され、結果、溶接部分が剥がれることが未然に防止される。
すなわち、溝状凹部77の弾性変形を伴って、溶接板70の溶接面73が接続用電極23Xの当接面24に密接された状態で、レーザー溶接がなされた場合、溝状凹部77が復元変形しようとすることに伴い、溶接面73が前後に変位して溶接部分を剥がすおそれがあるが、本実施形態では、上記の規制手段を採っていることにより、溶接面73が同方向に変位することが規制され、溶接部分が剥がれることが未然に防止される。
本明細書によって開示される技術は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も技術的範囲に含まれる。
(1)上記実施形態では、溶接板(取付面を除く)がL字形をなす場合を例示したが、電池モジュールの接続用電極の当接面と、電気機器の接続部の締結面とが同一高さに設定されている場合は、溶接板が平板状に形成されている等、溶接板の形状は、接続形態に応じて適宜に変更し得る。
(2)接続バスバーに備えた溶接板を接続用電極に溶接する手段は、上記実施形態に例示したレーザー溶接の他に、超音波溶接や半田付け(溶接の一種)等の他の溶接手段を採用してもよい。
(4)上記実施形態では、溶接板を別体に形成して接続バスバーに後付けしたものを例示したが、溶接板が接続バスバーの先端部に一体的に形成されていてもよく、そのようなものでも、部品の寸法公差や、配置公差に起因して、溶接板の溶接面と、接続用電極の当接面との間のずれが生じ得るから、本開示技術を同様に適用可能である。
(5)変形許容部である溝状凹部は、上記実施形態の方形断面に限らず、台形等の他の断面形状であってもよい。また、溝状凹部は、高さ方向において複数段に亘って設けてもよい。
(6)溶接板の変形を許容する手段としては、上記実施形態に例示した溝状凹部に限らず、開口を打ち抜いたり、薄肉にする等の他の手段を採用してもよい。
(8)電池モジュールの側方に配される電気機器は、インバータ以外にジャンクションボックス等の他の電気機器や、さらには別の電池モジュールであってもよい。
(10)上記実施形態では、溶接板の復動変形を規制する規制部として、溶接面が板面に沿った方向に変位することを規制する構造を例示したが、その他に、垂下面の下端と保持部材との間に、垂下面が上下方向に変位することを規制する等、要は、溶接面の剥がれを防ぐべく溶接板の復動変形を規制し得るものであれば、他の構造であってもよい。
11…接続部
20…電池モジュール
22…単電池
23X…接続用電極
60…接続バスバー
70…溶接板
72…垂下面(垂直面)
73…溶接面
77…溝状凹部(変形許容部)
79…規制片(規制部)
80…保持部材
94…規制溝(規制部)
100…電池モジュールと電気機器の接続構造
Claims (5)
- 複数の単電池が並べられた状態で接続された電池モジュールと、前記電池モジュールの側方に配された電気機器とを接続する、電池モジュールと電気機器の接続構造であって、
前記電気機器に設けられた接続部と、
前記電池モジュールに設けられた接続用電極と、
一端が前記電気機器の前記接続部に接続され、他端に前記電池モジュールの前記接続用電極に溶接される溶接板が設けられた接続バスバーと、が具備され、
前記溶接板には、当該溶接板の溶接面と、前記電池モジュールの前記接続用電極とを当接状態に維持させるための弾性変形可能な変形許容部が設けられている電池モジュールと電気機器の接続構造。 - 前記変形許容部が、前記溶接板の幅方向全域に形成された屈曲した形状をなす溝状凹部である請求項1に記載の電池モジュールと電気機器の接続構造。
- 前記溶接板が、前記接続バスバーよりも薄肉の薄板材によって前記接続バスバーとは別体に形成されている請求項1または請求項2に記載の電池モジュールと電気機器の接続構造。
- 前記溶接板が、前記電池モジュールの前記接続用電極の上面に装着された絶縁性の保持部材に収容可能であり、
前記溶接板と前記保持部材との間には、前記変形許容部の復元弾力に基づく前記溶接板の復動変形を規制する規制部が設けられている請求項1ないし請求項3のいずれか一項に記載の電池モジュールと電気機器の接続構造。 - 前記溶接板が、前記接続バスバーの先端から上下方向に直角に延出された垂直面の先端に、前記溶接面を前方に突出させた形態で設けたL字形に形成され、
前記垂直面に前記変形許容部が設けられている請求項1ないし請求項4のいずれか一項に記載の電池モジュールと電気機器の接続構造。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6350721B1 (ja) * | 2017-06-12 | 2018-07-04 | 株式会社オートネットワーク技術研究所 | 外部接続バスバー保持モジュール、接続モジュールおよび蓄電モジュール |
JP2021150149A (ja) * | 2020-03-18 | 2021-09-27 | 矢崎総業株式会社 | 電気接続部品 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6439892B1 (ja) * | 2018-05-21 | 2018-12-19 | 株式会社オートネットワーク技術研究所 | 接続モジュール |
CN114211151B (zh) * | 2021-12-31 | 2023-10-24 | 无锡骄成智能科技有限公司 | 一种电池电芯自动化焊接环流线及电池电芯焊接站 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61197650U (ja) * | 1985-05-31 | 1986-12-10 | ||
JP2015088267A (ja) * | 2013-10-29 | 2015-05-07 | 株式会社東芝 | 組電池モジュール |
JP2015153618A (ja) * | 2014-02-14 | 2015-08-24 | 株式会社オートネットワーク技術研究所 | 配線モジュール及び蓄電モジュール |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4420545A (en) * | 1981-11-05 | 1983-12-13 | Ford Aerospace & Communications Corporation | Lightweight metal-gas battery |
JPS61197650A (ja) | 1985-02-27 | 1986-09-01 | Chisso Corp | ポリプロピレン樹脂組成物 |
WO2007004335A1 (ja) * | 2005-07-05 | 2007-01-11 | Matsushita Electric Industrial Co., Ltd. | 電池間接続装置 |
JP5180505B2 (ja) * | 2007-03-30 | 2013-04-10 | 三菱重工業株式会社 | 電池モジュール |
DE102008034871A1 (de) * | 2008-07-26 | 2010-01-28 | Daimler Ag | Batterie, insbesondere Fahrzeugbatterie |
JP5508923B2 (ja) * | 2010-04-09 | 2014-06-04 | 日立ビークルエナジー株式会社 | 蓄電モジュール |
JP2013020855A (ja) * | 2011-07-12 | 2013-01-31 | Sanyo Electric Co Ltd | 電源装置及び電源装置を備える車両 |
JP5817075B2 (ja) * | 2011-07-19 | 2015-11-18 | ダイヤモンド電機株式会社 | 車載用電源装置 |
CN102903881B (zh) * | 2011-07-29 | 2016-02-03 | 比亚迪股份有限公司 | 一种用于电池模块之间的连接件及电池系统 |
US8939801B2 (en) * | 2011-07-29 | 2015-01-27 | Shenzhen Byd Auto R&D Company Limited | Connector between battery modules and battery system comprising the same |
JP6198061B2 (ja) * | 2013-10-28 | 2017-09-20 | 株式会社オートネットワーク技術研究所 | 配線モジュール |
CN105814712B (zh) * | 2013-12-13 | 2018-09-25 | 日立汽车系统株式会社 | 二次电池组件 |
WO2015159524A1 (ja) * | 2014-04-17 | 2015-10-22 | パナソニックIpマネジメント株式会社 | バスバーモジュール、バッテリ監視モジュールおよびバッテリモジュール |
JP2015230892A (ja) * | 2014-06-09 | 2015-12-21 | ソニー株式会社 | 電池モジュール、蓄電装置、蓄電システム、電子機器、電動車両および電力システム |
JP6246764B2 (ja) * | 2015-06-30 | 2017-12-13 | 株式会社東芝 | バスバー及びバッテリーモジュール |
KR101805650B1 (ko) * | 2015-08-28 | 2017-12-06 | 삼성에스디아이 주식회사 | 이차 전지 팩 |
-
2016
- 2016-10-12 WO PCT/JP2016/080213 patent/WO2017073319A1/ja active Application Filing
- 2016-10-12 JP JP2017547717A patent/JP6508355B2/ja active Active
- 2016-10-12 US US15/770,222 patent/US10637032B2/en active Active
- 2016-10-12 CN CN201680061106.XA patent/CN108140775B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61197650U (ja) * | 1985-05-31 | 1986-12-10 | ||
JP2015088267A (ja) * | 2013-10-29 | 2015-05-07 | 株式会社東芝 | 組電池モジュール |
JP2015153618A (ja) * | 2014-02-14 | 2015-08-24 | 株式会社オートネットワーク技術研究所 | 配線モジュール及び蓄電モジュール |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6350721B1 (ja) * | 2017-06-12 | 2018-07-04 | 株式会社オートネットワーク技術研究所 | 外部接続バスバー保持モジュール、接続モジュールおよび蓄電モジュール |
WO2018230277A1 (ja) * | 2017-06-12 | 2018-12-20 | 株式会社オートネットワーク技術研究所 | 外部接続バスバー保持モジュールおよび接続モジュール |
JP2019003737A (ja) * | 2017-06-12 | 2019-01-10 | 株式会社オートネットワーク技術研究所 | 外部接続バスバー保持モジュール、接続モジュールおよび蓄電モジュール |
CN109716554A (zh) * | 2017-06-12 | 2019-05-03 | 株式会社自动网络技术研究所 | 外部连接母线保持模块以及连接模块 |
US10608230B2 (en) | 2017-06-12 | 2020-03-31 | Autonetworks Technologies, Ltd. | External connection busbar holding module and connection module |
CN109716554B (zh) * | 2017-06-12 | 2021-11-12 | 株式会社自动网络技术研究所 | 外部连接母线保持模块以及连接模块 |
JP2021150149A (ja) * | 2020-03-18 | 2021-09-27 | 矢崎総業株式会社 | 電気接続部品 |
JP7221904B2 (ja) | 2020-03-18 | 2023-02-14 | 矢崎総業株式会社 | 電気接続部品 |
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CN108140775B (zh) | 2020-11-03 |
CN108140775A (zh) | 2018-06-08 |
US20180315975A1 (en) | 2018-11-01 |
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