WO2016194684A1 - 車両用バッテリユニット - Google Patents
車両用バッテリユニット Download PDFInfo
- Publication number
- WO2016194684A1 WO2016194684A1 PCT/JP2016/065214 JP2016065214W WO2016194684A1 WO 2016194684 A1 WO2016194684 A1 WO 2016194684A1 JP 2016065214 W JP2016065214 W JP 2016065214W WO 2016194684 A1 WO2016194684 A1 WO 2016194684A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- bracket
- tray
- vehicle
- reinforcing member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- 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
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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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/271—Lids or covers for the racks or secondary casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a vehicle battery unit mounted on a vehicle.
- Vehicles such as hybrid vehicles, electric vehicles, and fuel cell vehicles are provided with a battery unit that houses a plurality of batteries in a battery case.
- the battery case includes a tray on which the battery is mounted and a cover that covers the battery from above, and a plurality of girder members extending in the vehicle width direction are fixed to the lower surface of the tray.
- the battery unit is fixed to the left and right side members via a fastening portion of a girder member exposed in the vehicle width direction from the tray.
- the battery compartment of the tray includes a front-rear direction partition and a width-direction partition provided integrally with the tray in a grid pattern, thereby partitioning the battery compartment for housing the battery and ensuring the rigidity of the tray. ing.
- the present invention provides a battery unit that can reliably hold a battery and can simplify and reduce the weight of the tray itself.
- the present invention provides the following aspects.
- the first aspect is A plurality of batteries (for example, high-voltage batteries 31a to 33a of embodiments described later), A battery case (for example, a battery unit 10 according to an embodiment to be described later) including a battery case (for example, a battery case 50 according to an embodiment to be described later) that houses a plurality of the batteries,
- the battery case includes a bottom plate (for example, a bottom plate 51A and a bottom plate 51B in an embodiment described later) on which the battery is mounted, and a cover (for example, a cover 52 in an embodiment described later) that covers the battery from above.
- the bottom plate includes a plate-like tray (for example, a tray 54 and a tray 64 in the embodiments described later) and a plurality of longitudinal reinforcing members (for example, described later) provided on the upper surface of the tray and extending in the front-rear direction of the vehicle.
- the longitudinal reinforcing members are arranged to connect at least the adjacent lateral reinforcing members;
- the vertical reinforcing member and the horizontal reinforcing member are arranged in a lattice shape with the tray interposed therebetween,
- the battery is fixed to the longitudinal reinforcing member so that the longitudinal direction faces the vehicle width direction,
- the battery case is fixed below the floor of the vehicle by the lateral reinforcing member.
- the second aspect is A vehicle battery unit according to the first aspect
- the battery case includes a first battery module (for example, a front battery module 31 in an embodiment to be described later) and a second battery module (for example, a lower rear battery module 32 in an embodiment to be described later) that are configured by a plurality of the batteries. ) Are spaced apart in the front-rear direction across the space (for example, the space 34 in the embodiment described later), A front seat (for example, a front seat 4 in an embodiment described later) is disposed above the first battery module, A rear seat (for example, a rear seat 5 in an embodiment described later) is disposed above the second battery module, Each of the first battery module and the second battery module is disposed between the pair of lateral reinforcing members.
- the third aspect is A vehicle battery unit according to a second aspect, In the space portion, a high-voltage system device (for example, a DC-DC converter 22 of an embodiment described later) is disposed, The high-voltage equipment is fixed to the longitudinal reinforcing members (for example, first and second middle longitudinal reinforcing members 55E and 55F and second longitudinal reinforcing member 65B in the embodiments described later).
- a high-voltage system device for example, a DC-DC converter 22 of an embodiment described later
- the high-voltage equipment is fixed to the longitudinal reinforcing members (for example, first and second middle longitudinal reinforcing members 55E and 55F and second longitudinal reinforcing member 65B in the embodiments described later).
- the fourth aspect is A vehicle battery unit according to a third aspect,
- a pair of lateral reinforcing members (for example, a second bracket 53B, a third bracket 53C, a second bracket 63B, and a third bracket 63C according to an embodiment described later) are provided in the front-rear direction of the high-voltage equipment,
- On the upper surface of the tray at least one cross member (for example, a front cross member 56A, a rear cross member 56B, and a cross member 68 in an embodiment described later) is provided along the lateral reinforcing member,
- the longitudinal reinforcing member that holds the high-voltage equipment is fixed to the cross member.
- the fifth aspect is A vehicle battery unit according to a fourth aspect, At least one of the cross members is disposed so as to overlap with one of the pair of lateral reinforcing members sandwiching the high-voltage equipment as viewed from above; A closed space is formed by the cross member and the one lateral reinforcing member.
- the vertical reinforcing members and the horizontal reinforcing members are arranged in a lattice shape with the tray interposed therebetween, thereby increasing the thickness of the tray itself or providing rigidity to the tray itself. Even without this, the rigidity of the bottom plate is improved, and the tray itself can be simplified and reduced in weight.
- the battery can be securely held by the vertical reinforcing member that connects the horizontal reinforcing members.
- the battery unit in addition to the function as a reinforcing member in addition to the function of the reinforcing member in the lateral direction, the battery unit can be fixed under the floor of the vehicle by the lateral reinforcing member, and a separate fastening means is provided. Compared to the case, the number of parts can be reduced and assembly can be facilitated.
- a battery can be hold
- the influence on the indoor space can be avoided.
- crew's comfort can be ensured, without inhibiting the operation
- the high-voltage equipment fixed to the longitudinal reinforcing member is sandwiched between the first battery module and the second battery module in the front-rear direction, the high-voltage equipment can be effectively protected from impact such as collision.
- the high-pressure equipment can be more reliably protected by the cross member disposed on the upper surface of the tray. Further, the rigidity of the bottom plate can be further improved by the cross member.
- the closed space is formed by one of the pair of lateral reinforcing members sandwiching the cross member and the high-voltage equipment, the battery and the high-voltage equipment can be held with high rigidity and more reliably. it can.
- the battery unit 10 As shown in FIGS. 1 and 2, the battery unit 10 according to the embodiment of the present invention mainly includes a plurality of battery modules 31 to 33, a DC-DC converter 22, a battery ECU 40, and a battery case 50 for housing them. It is mounted on a vehicle V such as a hybrid vehicle, an electric vehicle, or a fuel cell vehicle. The battery unit 10 is disposed below the floor panel 3 that forms the floor surface of the passenger compartment 2.
- the battery case 50 includes a plurality of battery modules 31 to 33, a DC-DC converter 22, a bottom plate 51 on which the battery ECU 40 is mounted, and a cover 52 that covers these from above.
- a plurality of brackets 53 in the second embodiment, brackets 63
- brackets 63 that form a part of the bottom plate 51 and extend left and right are juxtaposed on the inside of the side sill disposed on both sides of the vehicle V.
- the battery unit 10 is attached so as to be suspended below the floor panel 3 by being fastened to a floor frame (not shown). A detailed configuration of the bottom plate 51 will be described later.
- the plurality of battery modules 31 to 33 include a front battery module 31 housed in the front part of the battery case 50 and two rear battery modules 32 and 33 housed in the rear part of the battery case 50 across the space 34.
- Each of the battery modules 31 to 33 includes a plurality of high voltage batteries 31a to 33a.
- the front battery module 31 is configured by a total of six high voltage batteries 31a arranged in two in the left-right direction and three in the front-rear direction.
- the front battery module 31 is arranged in a total of two in the left-right direction and three in the front-rear direction.
- the six high voltage batteries 32a constitute one rear battery module 32 (hereinafter also referred to as a lower rear battery module 32), and the other rear battery module 33 (hereinafter referred to as an upper rear part) is constituted by two high voltage batteries 33a arranged in the left-right direction. Also referred to as battery module 33).
- the plurality of battery modules 31 to 33 are disposed below the front seat 4 and the rear seat 5 of the vehicle V (see FIG. 1). Specifically, the front battery module 31 is disposed below the front seat 4, and the lower rear battery module 32 and the upper rear battery module 33 are disposed below the rear seat 5.
- the front battery module 31 When the front battery module 31 is disposed below the front seat 4, the front battery module 31 is placed flat without overlapping.
- the lower rear battery module 32 and the upper rear battery module 33 are vertically arranged in front of the seat surface of the rear seat 5 when arranged below the rear seat 5.
- the two high voltage batteries 33a constituting the upper rear battery module 33 are arranged above the two high voltage batteries 32a arranged in the foremost side. .
- the DC-DC converter 22 is a high-voltage system device that transforms a direct current, and is arranged in the space 34 between the front battery module 31 and the rear battery modules 32 and 33 and in the center in the width direction of the battery unit 10. .
- the battery ECU 40 is a battery controller that manages charging / discharging and temperature of the high-voltage batteries 31a to 33a, and is disposed behind the upper rear battery module 33 and above the lower rear battery module 32.
- FIGS. 3 is a view of the bottom plate 51A as viewed from above
- FIG. 4 is a view of the bottom plate 51A as viewed from below.
- the bottom plate 51A includes a tray 54 disposed below the high-voltage batteries 31a to 33a, a plurality of longitudinal reinforcing members 55 fixed to the upper surface of the tray 54 and extending in the front-rear direction of the vehicle V, and a vehicle fixed to the lower surface of the tray. And a plurality of brackets 53 extending in the vehicle width direction of V.
- the bracket 53 reinforces the tray 54 as a lateral reinforcing member and is fastened to a floor frame (not shown) as described above.
- a pair of front brackets 57A and 57B are fixed in front of the tray 54, and the front brackets 57A and 57B are fixed to a cross member (not shown) that connects the left and right side sills.
- the tray 54 has a substantially rectangular shape, and is formed by press-molding a thin plate material.
- the tray 54 protects the high voltage batteries 31a to 33a, the DC-DC converter 22, the battery ECU 40, and the like housed together with the cover 52 from moisture and foreign matter, and does not need to have high rigidity.
- the bracket 53 includes a bracket main body 53p that extends in the left-right direction below the tray 54 and is fixed to the tray 54 by spot welding or the like, and brackets provided so as to be exposed left and right from the tray 54 at both left and right ends of the bracket main body 53p. Fastening portion 53q.
- a total of four brackets 53 are provided from the front, ie, the first bracket 53A, the second bracket 53B, the third bracket 53C, and the fourth bracket 53D.
- the bracket body 53p of the third bracket 53C and the bracket body 53p of the fourth bracket 53D are provided. Are integrally formed.
- the bracket fastening portions 53q of the first bracket 53A to the fourth bracket 53D are arranged at substantially equal intervals in the front-rear direction so as to hold the tray 54 with good balance.
- the bracket body 53p is formed wider than the bracket fastening portion 53q, and in the second bracket 53B, the bracket fastening portion 53q and the bracket body 53p are substantially the same. It is formed in width. Accordingly, the width of the bracket body 53p of the second bracket 53B is narrower than the width of the bracket body 53p of the other brackets 53A, 53C, 53D.
- the vertical reinforcing member 55 is provided above the tray 54, that is, on the opposite side of the bracket 53 with the tray 54 interposed therebetween, and the four first to fourth front vertical reinforcing members 55A to 55D are the first bracket 53A.
- the second bracket 53B are connected to each other, and the two first and second middle longitudinal reinforcing members 55E and 55F are arranged to connect the second bracket 53B and the third bracket 53C.
- the first to fourth rear longitudinal reinforcing members 55G to 55J are arranged so as to connect the third bracket 53C and the fourth bracket 53D.
- the first front longitudinal reinforcement member 55A and the first rear longitudinal reinforcement member 55G are disposed at the left end of the tray 54, and the fourth front longitudinal reinforcement member 55D and the fourth rear longitudinal reinforcement member 55J are disposed at the right end of the tray 54.
- the second front vertical reinforcing member 55B and the second rear vertical reinforcing member 55H are disposed at the center of the left side of the tray 54 and spaced apart from the first front vertical reinforcing member 55A and the first rear vertical reinforcing member 55G.
- the third front vertical reinforcing member 55C and the third rear vertical reinforcing member 55I are disposed in the center of the right side of the tray 54 and spaced apart from the fourth front vertical reinforcing member 55D and the fourth rear vertical reinforcing member 55J.
- the second and third front longitudinal reinforcing members 55B and 55C are disposed adjacent to each other at the front portion of the tray 54, and the second and third rear longitudinal reinforcing members 55H and 55I are disposed adjacent to each other at the rear portion of the tray 54. Will be arranged.
- the first middle longitudinal reinforcing member 55E includes a first front longitudinal reinforcing member 55A, a first rear longitudinal reinforcing member 55G, a second front longitudinal reinforcing member 55B, and a second rear longitudinal reinforcing member 55H in the vehicle width direction. Between the second front longitudinal reinforcing member 55B and the second rear longitudinal reinforcing member 55H, and the second middle longitudinal reinforcing member 55F is connected to the fourth front longitudinal reinforcing member 55D and the second longitudinal reinforcing member 55D in the vehicle width direction.
- the brackets 53 and the longitudinal reinforcing members 55 arranged in this way have a lattice shape with the tray 54 interposed therebetween, and ensure the rigidity of the bottom plate 51A. Further, above the tray 54, the rear end portions of the first to fourth front longitudinal direction reinforcing members 55A to 55D and the front end portions of the first and second middle longitudinal direction reinforcing members 55E and 55F are provided for further improving the rigidity.
- a front cross member 56A is provided along the second bracket 53B so as to overlap the second bracket 53B when viewed from above, and the first and second middle longitudinal reinforcing members 55E and 55F are
- the rear cross member 56B is fixed to the end portion and the front end portion of the first to fourth rear longitudinal reinforcing members 55G to 55J, and overlaps the third bracket 53C when viewed from above, along the third bracket 53C. Is provided.
- the second bracket 53B and the front cross member 56A, the third bracket 53C and the rear cross member 56B are fastened by bolts and nuts passing through the tray 54 to form a closed cross section, thereby further improving the rigidity of the bottom plate 51A. Yes.
- the high voltage battery 31a constituting the front battery module 31 includes a first front longitudinal reinforcing member 55A and a second front vertical reinforcing member 55B, and a third front vertical reinforcing member 55C and a fourth front vertical reinforcing member. Between the members 55D, it is fixed so that the longitudinal direction faces the vehicle width direction.
- the high-voltage battery 32a constituting the lower rear battery module 32 includes the first rear longitudinal reinforcing member 55G and the second rear vertical reinforcing member 55H, and the third rear vertical reinforcing member 55I and the fourth rear vertical member. Between the direction reinforcement member 55J, it fixes so that a longitudinal direction may face a vehicle width direction. Further, the DC-DC converter 22 is fixed between the first and second middle longitudinal reinforcing members 55E and 55F.
- each of the high-voltage batteries 31a and 32a has a plurality of battery cells held by a rectangular parallelepiped frame member, so that the longitudinal reinforcing members 55 are connected on the tray 54 by the frame member. . Therefore, a pair of lateral reinforcing members are formed substantially above and below the tray 54, and the high voltage batteries 31a and 32a (battery cells) are held with high strength.
- the high-voltage battery 31a is disposed between the first front longitudinal reinforcing member 55A and the second front vertical reinforcing member 55B connecting the first bracket 53A and the second bracket 53B.
- Three high-voltage batteries 31a are arranged in the front-rear direction between the third front longitudinal reinforcing member 55C and the fourth front longitudinal reinforcing member 55D, which are arranged in the direction and similarly connect the first bracket 53A and the second bracket 53B.
- the front battery module 31 is constituted by a total of six high voltage batteries 31a.
- three high voltage batteries 32a are arranged in the front-rear direction between the first rear longitudinal reinforcing member 55G and the second rear longitudinal reinforcing member 55H connecting the third bracket 53C and the fourth bracket 53D.
- the lower rear battery module 32 is configured by 32a.
- a high voltage battery 33 a constituting the upper rear battery module 33 is disposed on the left and right high voltage batteries 32 a in the forefront of the lower rear battery module 32.
- the space 34 between the front battery module 31 and the lower rear battery module 32 has first and second middle longitudinal reinforcing members 55E and 55F fixed to the front cross member 56A and the rear cross member 56B.
- a DC-DC converter 22 is arranged.
- the vertical reinforcing members 55 and the brackets 53 are arranged in a lattice shape with the tray 54 interposed therebetween, thereby increasing the thickness of the tray 54 itself or the tray 54 itself. Even without providing rigidity, the rigidity of the bottom plate 51A is improved, and the tray 54 itself can be simplified and reduced in weight. Further, the high-voltage batteries 31a to 33a can be reliably held by the vertical reinforcing member 55 that connects the bracket 53. Further, by providing the bracket 53 with a function as a fastening member in addition to a function as a reinforcing member, the battery unit 10 can be fixed under the floor of the vehicle V by the bracket 53, and a separate fastening means is provided.
- the number of parts can be reduced and assembly can be facilitated. Further, by covering the high voltage batteries 31a to 33a with the battery case 50 including the bottom plate 51A and the cover 52, the high voltage batteries 31a to 33a arranged under the floor can be protected from moisture and foreign substances.
- the front battery module 31 is disposed between the first bracket 53A and the second bracket 53B, and the lower rear battery module 32 and the upper rear battery module 33 are disposed between the third bracket 53C and the fourth bracket 53D.
- the high voltage batteries 31a to 33a can be held with high rigidity in the lattice space.
- the third bracket 53C and the fourth bracket 53D that hold the lower rear battery module 32 and the upper rear battery module 33 on the large capacity side are integrally molded, so that a large capacity is achieved.
- the lower rear battery module 32 and the upper rear battery module 33 can be securely held.
- the space part 34 is formed between the front seat 4 and the rear seat 5, the influence on the vehicle compartment 2 can be avoided. Thereby, a passenger
- the DC-DC converter 22 fixed to the first and second middle longitudinal direction reinforcing members 55E, 55F is sandwiched between the front battery module 31 and the lower rear battery module 32 in the front-rear direction, the DC-DC converter 22 is Effective protection from impacts such as impact.
- the DC-DC converter 22 can be more reliably protected by the front cross member 56A and the rear cross member 56B arranged on the upper surface of the tray 54. Further, the rigidity of the bottom plate 51A can be further improved by the front cross member 56A and the rear cross member 56B.
- a closed space is formed by the front cross member 56A and the second bracket 53B, and a closed space is formed by the rear cross member 56B and the third bracket 53C, so that the high voltage batteries 31a to 33a and the DC-DC converter are formed. 22 is highly rigid and can be held more securely.
- FIGS. 5 is a view of the bottom plate 51B as viewed from above
- FIG. 6 is a view of the bottom plate 51B as viewed from below
- FIG. 7 is an exploded perspective view of the bottom plate 51B.
- the bottom plate 51B is fixed to a tray 64 disposed mainly below the high-voltage batteries 31a to 33a, a plurality of longitudinal reinforcing members 65 fixed to the upper surface of the tray 64 and extending in the front-rear direction of the vehicle V, and the lower surface of the tray. And a plurality of brackets 63 extending in the vehicle width direction of the vehicle V.
- the bracket 63 reinforces the tray 64 as a lateral reinforcing member and is fastened to a floor frame (not shown) as described above.
- the tray 64 has a substantially rectangular shape and is formed by press-molding a thin plate material.
- the tray 64 protects the high voltage batteries 31a to 33a, the DC-DC converter 22, the battery ECU 40, and the like housed together with the cover 52 from moisture and foreign matter, and does not need to have high rigidity.
- the bracket 63 includes a bracket main body 63p that extends in the left-right direction below the tray 64 and is fixed to the tray 64 by spot welding or the like, and brackets provided so as to be exposed left and right from the tray 64 at both left and right ends of the bracket main body 63p. Fastening part 63q.
- a total of four brackets 63 are provided from the front, the first bracket 63A, the second bracket 63B, the third bracket 63C, and the fourth bracket 63D, and the bracket body 63p of the third bracket 63C and the bracket body 63p of the fourth bracket 63D. Are integrally formed.
- the bracket fastening portions 63q of the first bracket 63A to the fourth bracket 63D are arranged at substantially equal intervals in the front-rear direction so as to hold the tray 64 with good balance.
- a pair of front brackets 67A and 67B are integrally formed in front of the first bracket 63A, and the front brackets 67A and 67B are fixed to a cross member (not shown) that connects the left and right side sills.
- the bracket body 63p is formed wider than the bracket fastening portion 63q, and in the second bracket 63B, the bracket fastening portion 63q and the bracket body 63p are substantially the same. It is formed in width. Therefore, the width of the bracket body 63p of the second bracket 63B is narrower than the width of the bracket body 63p of the other brackets 63A, 63C, 63D.
- the vertical reinforcing member 65 is provided above the tray 64, that is, on the opposite side of the bracket 63 with the tray 64 interposed therebetween, and the three first to third vertical reinforcing members 65A to 65C are provided to the first bracket 63A to 63A. It arrange
- the first longitudinal reinforcing member 65A is disposed at the left end of the tray 64
- the second longitudinal reinforcing member 65B is disposed at the center of the tray 64
- the third longitudinal reinforcing member 65C is disposed at the right end of the tray 64.
- the brackets 63 and the longitudinal reinforcing members 65 arranged in this way have a lattice shape with the tray 64 interposed therebetween, and ensure the rigidity of the bottom plate 51B.
- a sub-longitudinal reinforcing member 66 and a cross member 68 are provided above the tray 64 to further improve the rigidity.
- the sub-longitudinal reinforcing member 66 includes two first and second sub-vertical reinforcing members 66A and 66B, and the first and second sub-vertical reinforcing members 66A and 66B are the first bracket 63A to the fourth bracket. It arrange
- the first sub longitudinal reinforcing member 66A is disposed between the first vertical reinforcing member 65A and the second vertical reinforcing member 65B, and the second sub vertical reinforcing member 66B is connected to the second vertical reinforcing member 65B and the third vertical reinforcing member 65B. It arrange
- the cross member 68 is provided so as to cross all of the first to third longitudinal reinforcing members 65A to 65C and the first and second sub longitudinal reinforcing members 66A and 66B.
- the cross member 68 is provided along the second bracket 63B so as to overlap the second bracket 63B when viewed from above.
- the second bracket 63B and the cross member 68 are fastened through the tray 64 to form a closed cross section, thereby further improving the rigidity of the bottom plate 51B.
- the width of the bracket body 63p is narrower than the other brackets 63A, 63C, 63D.
- the other brackets 63A, 63C, 63D, to which the cross member 68 is not fastened improve the rigidity of the bracket itself by increasing the width of the bracket body 63p.
- the high voltage battery 31a constituting the front battery module 31 and the high voltage battery 32a constituting the lower rear battery module 32 are provided between the first longitudinal reinforcing member 65A and the second longitudinal reinforcing member 65B, and the second longitudinal reinforcing member. It is fixed between the member 65B and the third longitudinal reinforcing member 65C so that the longitudinal direction faces the vehicle width direction. Further, the DC-DC converter 22 is fixed to a substantially central portion in the front-rear direction of the second longitudinal reinforcing member 65B.
- each of the high-voltage batteries 31a and 32a has a plurality of battery cells held by a rectangular parallelepiped frame member, so that the vertical reinforcing members 65 are connected on the tray 64 by the frame member. . Accordingly, a pair of lateral reinforcing members are formed substantially above and below the tray 64, and the high voltage batteries 31a and 32a (battery cells) are held with high strength.
- the first vertical reinforcing member 65A and the second vertical reinforcing member 65B connecting all of the first bracket 63A to the fourth bracket 63D in front of the cross member 68 are provided.
- Three high-voltage batteries 31a are arranged in the front-rear direction between the high-voltage batteries between the second vertical reinforcing member 65B and the third vertical reinforcing member 65C that similarly connect all of the first bracket 63A to the fourth bracket 63D.
- the front battery module 31 is configured by a total of six high-voltage batteries 31a.
- a high-voltage battery is provided between the first vertical reinforcing member 65A and the second vertical reinforcing member 65B, which is separated from the cross member 68 behind the cross member 68 and connects all of the first bracket 63A to the fourth bracket 63D.
- the three high-voltage batteries 32a are arranged between the second vertical reinforcing member 65B and the third vertical reinforcing member 65C, which are arranged in the front-rear direction, and connect all of the first bracket 63A to the fourth bracket 63D.
- the three front battery modules 31 are configured by a total of six high voltage batteries 32a.
- a high voltage battery 33 a constituting the upper rear battery module 33 is disposed on the left and right high voltage batteries 32 a in the forefront of the lower rear battery module 32.
- the DC-DC converter 22 is disposed on the second longitudinal reinforcing member 65B fixed to the cross member 68.
- the second longitudinal reinforcing member 65B is provided with a hole 69 in a part of a region where the DC-DC converter 22 is disposed, and a space formed between the longitudinal reinforcing member 65 and the tray 64 and the DC-DC converter. 22 communicates with each other through a hole 69. Thereby, a harness (not shown) routed in this space is connected to the DC-DC converter 22 through the hole 69.
- the space formed in the vertical reinforcing member 65 and the tray 64 can be efficiently used as a harness accommodating space, and further, DC -The DC converter 22 can be arranged compactly in the height direction.
- the vertical reinforcing members 65 and the brackets 63 are arranged in a lattice shape with the tray 64 interposed therebetween, thereby increasing the thickness of the tray 64 itself or the tray 64 itself. Even without providing rigidity, the rigidity of the bottom plate 51B is improved, and the tray 64 itself can be simplified and reduced in weight. Further, the high-voltage batteries 31a to 33a can be reliably held by the vertical reinforcing member 65 that connects the bracket 63. Further, by providing the bracket 63 with a function as a fastening member in addition to a function as a reinforcing member, the battery unit 10 can be fixed to the floor of the vehicle V by the bracket 53, and a separate fastening means is provided. Compared to this, the number of parts can be reduced and assembly can be facilitated.
- the front battery module 31 is disposed between the first bracket 63A and the second bracket 63B, and the lower rear battery module 32 and the upper rear battery module 33 are disposed between the third bracket 63C and the fourth bracket 63D.
- the high voltage batteries 31a to 33a can be held with high rigidity in the lattice space.
- the third bracket 63C and the fourth bracket 63D that hold the lower rear battery module 32 and the upper rear battery module 33 on the large capacity side are integrally molded, thereby increasing the capacity.
- the lower rear battery module 32 and the upper rear battery module 33 can be securely held.
- the space part 34 is formed between the front seat 4 and the rear seat 5, the influence on the vehicle compartment 2 can be avoided. Thereby, a passenger
- the DC-DC converter 22 fixed to the second longitudinal reinforcing member 65B is sandwiched between the front battery module 31 and the lower rear battery module 32 in the front-rear direction, the DC-DC converter 22 is effectively prevented from impact such as a collision. Can be protected.
- the DC-DC converter 22 can be more reliably protected by the cross member 68 disposed on the upper surface of the tray 54. Further, the cross member 68 can further improve the rigidity of the bottom plate 51B.
- the closed space is formed by the cross member 68 and the second bracket 53B, the high voltage batteries 31a to 33a and the DC-DC converter 22 can be held with high rigidity and more reliably.
- this invention is not limited to embodiment mentioned above, A deformation
- the longitudinal reinforcing members 55 (65) and the brackets 53 (63) are arranged in a lattice shape with the tray 54 (64) in between, the shapes of the longitudinal reinforcing members 55 (65) and the brackets 53 (63) are formed.
- the number and the like can be changed as appropriate.
- the DC-DC converter 22 as the high voltage system device is illustrated, the battery unit 10 does not necessarily include the high voltage system device. Further, instead of the DC-DC converter 22, other high-voltage equipment may be provided together with the DC-DC converter 22.
- Front seat 5 Rear seat 10 Battery unit (vehicle battery unit) 22 DC-DC converter (high voltage equipment) 31 Front battery module (first battery module) 31a-33a High voltage battery (battery) 32 Lower rear battery module (second battery module) 50 Battery case 51A, 51B Bottom plate 52 Cover 53, 63 Bracket 54, 64 Tray 55, 65 Vertical reinforcing member 56A Front cross member (cross member) 56B Rear cross member (cross member) 68 Cross member
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Abstract
Description
第1態様は、
複数のバッテリ(例えば、後述の実施形態の高圧バッテリ31a~33a)と、
複数の該バッテリを収納するバッテリケース(例えば、後述の実施形態のバッテリケース50)と、を備える車両用バッテリユニット(例えば、後述の実施形態のバッテリユニット10)であって、
前記バッテリケースは、前記バッテリが搭載されるボトムプレート(例えば、後述の実施形態のボトムプレート51A、ボトムプレート51B)と、前記バッテリを上方から覆うカバー(例えば、後述の実施形態のカバー52)と、を備え、
該ボトムプレートは、板状のトレー(例えば、後述の実施形態のトレー54、トレー64)と、該トレーの上面に設けられ前記車両の前後方向に延びる複数の縦方向補強メンバ(例えば、後述の実施形態の縦方向補強メンバ55、縦方向補強メンバ65)と、該トレーの下面に設けられ前記車両の車幅方向に延びる複数の横方向補強メンバ(例えば、後述の実施形態のブラケット53、ブラケット63)と、を備え、
前記縦方向補強メンバは、少なくとも隣接する前記横方向補強メンバを繋ぐように配置され、
前記縦方向補強メンバと前記横方向補強メンバは、前記トレーを挟んで格子状に配置され、
前記バッテリは、前記縦方向補強メンバに長手方向が車幅方向を向くように固定され、
前記バッテリケースは、前記横方向補強メンバにより前記車両の床下に固定されている。
第1態様の車両用バッテリユニットであって、
前記バッテリケースには、複数の前記バッテリから構成される第1バッテリモジュール(例えば、後述の実施形態の前部バッテリモジュール31)及び第2バッテリモジュール(例えば、後述の実施形態の下後部バッテリモジュール32)が、空間部(例えば、後述の実施形態の空間部34)を挟んで前後方向に離間して配置され、
前記第1バッテリモジュールの上方には前部座席(例えば、後述の実施形態の前部座席4)が配置され、
前記第2バッテリモジュールの上方には後部座席(例えば、後述の実施形態の後部座席5)が配置され、
前記第1バッテリモジュール及び前記第2バッテリモジュールは、それぞれ一対の前記横方向補強メンバ間に配置されている。
第2態様の車両用バッテリユニットであって、
前記空間部には、高圧系機器(例えば、後述の実施形態のDC-DCコンバータ22)が配置され、
該高圧系機器は、前記縦方向補強メンバ(例えば、後述の実施形態の第1及び第2中縦方向補強メンバ55E,55F、第2縦方向補強メンバ65B)に固定されている。
第3態様の車両用バッテリユニットであって、
前記高圧系機器の前後方向には、一対の前記横方向補強メンバ(例えば、後述の実施形態の第2ブラケット53B,第3ブラケット53C、第2ブラケット63B,第3ブラケット63C)が設けられ、
前記トレーの上面には、前記横方向補強メンバに沿って少なくとも1つのクロスメンバ(例えば、後述の実施形態の前クロスメンバ56A,後クロスメンバ56B、クロスメンバ68)が設けられ、
前記高圧系機器を保持する前記縦方向補強メンバが、前記クロスメンバに固定されている。
第4態様の車両用バッテリユニットであって、
少なくとも1つの前記クロスメンバが、前記高圧系機器を挟む一対の前記横方向補強メンバの一方と上方から見てオーバーラップするように配置され、
前記クロスメンバと前記一方の横方向補強メンバにより閉空間が形成されている。
また、車両用バッテリユニットにおいて、前部座席と後部座席との間に空間部が形成されるので、室内空間への影響を回避できる。これにより、後部座席の乗員が前部座席の下方に足を入れたり出したりする際の動作を阻害せずに、乗員の快適性を確保できる。
図1及び図2に示すように、本発明の実施形態に係るバッテリユニット10は、主として複数のバッテリモジュール31~33、DC-DCコンバータ22、バッテリ用ECU40及びこれらを収容するバッテリケース50を備え、ハイブリッド車両、電気車両、燃料電池車等の車両Vに搭載される。バッテリユニット10は、車室2の床面を形成するフロアパネル3の下方に配置される。
バッテリケース50は、複数のバッテリモジュール31~33、DC-DCコンバータ22、及びバッテリ用ECU40が搭載されるボトムプレート51と、これらを上方から覆うカバー52とから構成される。バッテリケース50は、ボトムプレート51の一部をなして左右に延びる複数のブラケット53(第2実施形態においてはブラケット63)が車両Vの両側方に配設されるサイドシルの内方に並設されるフロアフレーム(不図示)に締結されることにより、バッテリユニット10がフロアパネル3の下方に吊り下げられるように取り付けられる。ボトムプレート51の詳細な構成について後述する。
複数のバッテリモジュール31~33には、バッテリケース50の前部に収容される前部バッテリモジュール31と、空間部34を挟んでバッテリケース50の後部に収容される2つの後部バッテリモジュール32、33とが含まれ、各バッテリモジュール31~33は、それぞれ複数の高圧バッテリ31a~33aを有する。本実施形態では、左右方向に2つ、前後方向に3つ並べた合計6つの高圧バッテリ31aによって前部バッテリモジュール31が構成され、同様に左右方向に2つ、前後方向に3つ並べた合計6つの高圧バッテリ32aによって一方の後部バッテリモジュール32(以下、下後部バッテリモジュール32とも呼ぶ。)が構成され、左右方向に並べた2つの高圧バッテリ33aによって他方の後部バッテリモジュール33(以下、上後部バッテリモジュール33とも呼ぶ。)が構成される。
<第1実施形態>
続いて、バッテリケース50を構成する、第1実施形態のボトムプレート51(以下、ボトムプレート51Aと呼ぶ。)について、図3及び図4を参照しながら詳細に説明する。図3はボトムプレート51Aを上方から見た図であり、図4はボトムプレート51Aを下方から見た図である。
続いて、バッテリケース50を構成する、第2実施形態のボトムプレート51(以下、ボトムプレート51Bと呼ぶ。)について、図5~図7を参照しながら詳細に説明する。図5は、ボトムプレート51Bを上方から見た図であり、図6はボトムプレート51Bを下方から見た図であり、図7はボトムプレート51Bの分解斜視図である。
例えば、縦方向補強メンバ55(65)とブラケット53(63)がトレー54(64)を挟んで格子状に配置されている限り、縦方向補強メンバ55(65)とブラケット53(63)の形状、数等は適宜変更することができる。
また、高圧系機器としてのDC-DCコンバータ22を例示したが、バッテリユニット10には、高圧系機器が必ずしも含まれている必要はない。また、DC-DCコンバータ22に代えて、又はDC-DCコンバータ22とともに他の高圧系機器が設けられていてもよい。
5 後部座席
10 バッテリユニット(車両用バッテリユニット)
22 DC-DCコンバータ(高圧系機器)
31 前部バッテリモジュール(第1バッテリモジュール)
31a~33a 高圧バッテリ(バッテリ)
32 下後部バッテリモジュール(第2バッテリモジュール)
50 バッテリケース
51A、51B ボトムプレート
52 カバー
53、63 ブラケット
54、64 トレー
55、65 縦方向補強メンバ
56A 前クロスメンバ(クロスメンバ)
56B 後クロスメンバ(クロスメンバ)
68 クロスメンバ
Claims (5)
- 複数のバッテリと、
複数の該バッテリを収納するバッテリケースと、を備える車両用バッテリユニットであって、
前記バッテリケースは、前記バッテリが搭載されるボトムプレートと、前記バッテリを上方から覆うカバーと、を備え、
該ボトムプレートは、板状のトレーと、該トレーの上面に設けられ前記車両の前後方向に延びる複数の縦方向補強メンバと、該トレーの下面に設けられ前記車両の車幅方向に延びる複数の横方向補強メンバと、を備え、
前記縦方向補強メンバは、少なくとも隣接する前記横方向補強メンバを繋ぐように配置され、
前記縦方向補強メンバと前記横方向補強メンバは、前記トレーを挟んで格子状に配置され、
前記バッテリは、前記縦方向補強メンバに長手方向が車幅方向を向くように固定され、
前記バッテリケースは、前記横方向補強メンバにより前記車両の床下に固定された、車両用バッテリユニット。 - 請求項1に記載の車両用バッテリユニットであって、
前記バッテリケースには、複数の前記バッテリから構成される第1バッテリモジュール及び第2バッテリモジュールが、空間部を挟んで前後方向に離間して配置され、
前記第1バッテリモジュールの上方には前部座席が配置され、
前記第2バッテリモジュールの上方には後部座席が配置され、
前記第1バッテリモジュール及び前記第2バッテリモジュールは、それぞれ一対の前記横方向補強メンバ間に配置された、車両用バッテリユニット。 - 請求項2に記載の車両用バッテリユニットであって、
前記空間部には、高圧系機器が配置され、
該高圧系機器は、前記縦方向補強メンバに固定された、車両用バッテリユニット。 - 請求項3に記載の車両用バッテリユニットであって、
前記高圧系機器の前後方向には、一対の前記横方向補強メンバが設けられ、
前記トレーの上面には、前記横方向補強メンバに沿って少なくとも1つのクロスメンバが設けられ、
前記高圧系機器を保持する前記縦方向補強メンバが、前記クロスメンバに固定された、車両用バッテリユニット。 - 請求項4に記載の車両用バッテリユニットであって、
少なくとも1つの前記クロスメンバが、前記高圧系機器を挟む一対の前記横方向補強メンバの一方と上方から見てオーバーラップするように配置され、
前記クロスメンバと前記一方の横方向補強メンバにより閉空間が形成された、車両用バッテリユニット。
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| CN201680028474.4A CN107614306B (zh) | 2015-06-04 | 2016-05-23 | 车辆用电池单元 |
| US15/571,150 US10549619B2 (en) | 2015-06-04 | 2016-05-23 | Vehicle battery unit |
| CA2984476A CA2984476C (en) | 2015-06-04 | 2016-05-23 | Vehicle battery unit |
| DE112016002474.6T DE112016002474T5 (de) | 2015-06-04 | 2016-05-23 | Fahrzeugbatterieeinheit |
| JP2017521825A JP6615196B2 (ja) | 2015-06-04 | 2016-05-23 | 車両用バッテリユニット |
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| US (1) | US10549619B2 (ja) |
| JP (1) | JP6615196B2 (ja) |
| CN (1) | CN107614306B (ja) |
| CA (1) | CA2984476C (ja) |
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- 2016-05-23 CN CN201680028474.4A patent/CN107614306B/zh active Active
- 2016-05-23 DE DE112016002474.6T patent/DE112016002474T5/de not_active Withdrawn
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| EP3582989B1 (en) | 2017-02-17 | 2022-07-20 | Mubea Carbo Tech GmbH | Battery structure and protector |
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| CN108657559B (zh) * | 2017-04-01 | 2024-05-07 | 比亚迪股份有限公司 | 电池托盘和车辆 |
| JP2019012604A (ja) * | 2017-06-29 | 2019-01-24 | 株式会社村田製作所 | 電池ホルダおよび電池パック |
| JP7069603B2 (ja) | 2017-08-28 | 2022-05-18 | スズキ株式会社 | 電動車両の車体構造 |
| JP2019038467A (ja) * | 2017-08-28 | 2019-03-14 | スズキ株式会社 | 電動車両の車体構造 |
| JP2019166906A (ja) * | 2018-03-22 | 2019-10-03 | トヨタ自動車株式会社 | 車両 |
| JP7110648B2 (ja) | 2018-03-22 | 2022-08-02 | トヨタ自動車株式会社 | 車両 |
| KR20200032457A (ko) * | 2018-09-18 | 2020-03-26 | 주식회사 포스코 | 배터리 케이스와 이의 제조방법 |
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| KR102098496B1 (ko) * | 2018-09-18 | 2020-04-07 | 주식회사 포스코 | 배터리 케이스와 이의 제조방법 |
| KR20200032456A (ko) * | 2018-09-18 | 2020-03-26 | 주식회사 포스코 | 배터리 케이스 |
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| JP7154911B2 (ja) | 2018-09-25 | 2022-10-18 | 株式会社Fts | バッテリーケース用ロアトレー |
| JP2021144829A (ja) * | 2020-03-11 | 2021-09-24 | スズキ株式会社 | 車両のバッテリ搭載構造 |
| JP7435063B2 (ja) | 2020-03-11 | 2024-02-21 | スズキ株式会社 | 車両のバッテリ搭載構造 |
| WO2024117846A1 (ko) * | 2022-12-02 | 2024-06-06 | 주식회사 엘지에너지솔루션 | 배터리 팩 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112016002474T5 (de) | 2018-02-15 |
| CA2984476A1 (en) | 2016-12-08 |
| JP6615196B2 (ja) | 2019-12-04 |
| US20180170165A1 (en) | 2018-06-21 |
| JPWO2016194684A1 (ja) | 2018-01-11 |
| CN107614306A (zh) | 2018-01-19 |
| CN107614306B (zh) | 2020-10-09 |
| US10549619B2 (en) | 2020-02-04 |
| CA2984476C (en) | 2019-08-27 |
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