WO2020066239A1 - Saddled electric vehicle - Google Patents

Saddled electric vehicle Download PDF

Info

Publication number
WO2020066239A1
WO2020066239A1 PCT/JP2019/028587 JP2019028587W WO2020066239A1 WO 2020066239 A1 WO2020066239 A1 WO 2020066239A1 JP 2019028587 W JP2019028587 W JP 2019028587W WO 2020066239 A1 WO2020066239 A1 WO 2020066239A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastening portion
motor
vehicle
battery unit
battery case
Prior art date
Application number
PCT/JP2019/028587
Other languages
French (fr)
Japanese (ja)
Inventor
怜 松島
祐輔 長嶋
Original Assignee
本田技研工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to CN201980062133.2A priority Critical patent/CN112770964B/en
Priority to JP2020548042A priority patent/JP7055216B2/en
Publication of WO2020066239A1 publication Critical patent/WO2020066239A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J9/00—Containers specially adapted for cycles, e.g. panniers or saddle bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels

Definitions

  • the present invention relates to a saddle-ride type electric vehicle.
  • Priority is claimed on Japanese Patent Application No. 2018-181660 filed on Sep. 27, 2018, the content of which is incorporated herein by reference.
  • Patent Literature 1 discloses an electric motorcycle in which an electric motor and a battery are housed in a case to form a power unit assembly, and the case is assembled to a frame.
  • the present invention provides a saddle-ride type electric vehicle with improved steering performance.
  • a saddle-ride type electric vehicle is a vehicle driving motor (40) and a power supply for the motor (40), which are disposed in front of and above the motor (40).
  • a first fastening portion (66) fastened to the vehicle body frame (5) is provided on a front surface (50a) facing the front of the vehicle, and the first fastening portion (66) is above and forward of the motor (40).
  • CL vehicle width
  • the first fastening portion is provided forward of the motor, and overlaps the center of the vehicle width when viewed from the vehicle front-rear direction.
  • the battery unit extends in the vehicle width direction relative to the vehicle body frame Can be tolerated. For this reason, inertia acting on the battery unit and the motor fixed to the battery unit during banking of the vehicle or the like is less likely to act on the vehicle body frame. Therefore, the steering performance can be improved.
  • the first fastening portion is provided above the motor.
  • the gravity of the motor acts on the first fastening portion less than the height of the motor or the fastening portion provided below the motor.
  • the structure of the first fastening portion can be simplified and lightened, and the strength of the fastening structure in the first fastening portion can be set low. Therefore, even if swinging of the battery unit with respect to the vehicle body frame in the vehicle width direction is allowed, it is possible to suppress a decrease in fixing strength between the battery unit and the vehicle body frame.
  • a saddle-ride type electric vehicle with improved steering performance can be provided.
  • the battery unit (50) includes a lower battery case (52) positioned in front of the motor (40), the motor (40) and An upper battery case (56) located above the lower battery case (52).
  • the upper battery case (56) includes the first fastening portion (66), and the lower battery case (56).
  • 52) includes at least one second fastening portion (63, 65) fastened to the vehicle body frame (5), and the first fastening portion (66) includes the at least one second fastening portion (63, 65). 65) may be formed smaller in the vehicle width direction.
  • the second fastening portion is provided below the first fastening portion, the gravity of the battery unit and the motor acts more on the second fastening portion than on the first fastening portion.
  • the fastening structure in the first fastening portion while securing the fixing strength between the battery unit and the body frame in the second fastening portion. Can be set low. Therefore, the swing of the battery unit in the vehicle width direction with respect to the body frame in the first fastening portion can be allowed, and the steering performance can be improved.
  • the battery unit (50) includes a lower battery case (52) located in front of the motor (40), and the motor (40) and an upper battery case (56) located above the lower battery case (52), wherein the upper battery case (56) is wider in the vehicle width direction than the lower battery case (52). May be formed small.
  • the center of gravity of the battery unit can be lowered as compared with the case where the upper battery case is formed larger in the vehicle width direction than the lower battery case. Therefore, the moment of inertia of the battery unit during banking of the vehicle can be reduced, and steering performance can be improved.
  • the upper battery case is arranged at a position closer to the occupant than the lower battery case. For this reason, since the upper battery case is smaller than the lower battery case in the vehicle width direction, when the occupant sits above the battery case, the battery unit is less likely to be an obstacle for the occupant.
  • the battery unit (50) is fastened to the body frame (5).
  • the plurality of fastening portions (61) may overlap the vehicle width center (CL) when viewed from the vehicle front-rear direction.
  • the vehicle width of the battery unit relative to the body frame at the plurality of fastening portions is smaller than when the battery unit is fastened to the body frame on both sides of the vehicle width center when viewed from the vehicle front-rear direction. Swing in the direction can be tolerated. Therefore, the inertia acting on the battery unit and the motor fixed to the battery unit when the vehicle is banked or the like is less likely to act on the vehicle body frame. Therefore, the steering performance can be further improved.
  • the battery unit (50) is fastened to the vehicle body frame (5).
  • the first fastening portion (66) is the most distant from the rotation center (O) of the motor (40) among the plurality of fastening portions (61). You may.
  • the first fastening portion can be provided at a position farthest from the center of gravity of the motor among the plurality of fastening portions.
  • the force transmitted from the motor to the first fastening portion via the battery unit can be reduced, so that the configuration of the first fastening portion can be simplified and lightened, and the strength of the fastening structure in the first fastening portion can be set low. Therefore, even if swinging of the battery unit with respect to the vehicle body frame in the vehicle width direction is allowed, it is possible to suppress a decrease in fixing strength between the battery unit and the vehicle body frame.
  • the vehicle body frame (5) includes a head pipe (16) that steerably supports a front wheel (2); A pair of left and right main frames (17) extending rearward from the head pipe (16), a down frame (19) extending downward from the head pipe (16), and the pair of main frames above the motor (40).
  • the first fastening portion is arranged near the head pipe. That is, the first fastening portion is disposed above the cross member in a side view as compared with the case where the first fastening portion is disposed below the cross member.
  • the strength of the fastening structure in the first fastening portion can be set low. Therefore, even if swinging of the battery unit with respect to the vehicle body frame in the vehicle width direction is allowed, it is possible to suppress a decrease in fixing strength between the battery unit and the vehicle body frame.
  • the first fastening portion does not overlap with the vehicle body frame in side view, access to the first fastening portion is facilitated. Therefore, the assemblability of the vehicle body frame and the battery unit can be improved.
  • the first fastening portion (66) divides the battery unit (50) into three in a height direction of the vehicle. It may be arranged in the uppermost region in the case.
  • the first fastening portion is arranged at a position away from the motor.
  • the force transmitted from the motor to the first fastening portion via the battery unit can be reduced, so that the configuration of the first fastening portion can be simplified and lightened, and the strength of the fastening structure in the first fastening portion can be set low. Therefore, even if swinging of the battery unit with respect to the vehicle body frame in the vehicle width direction is allowed, it is possible to suppress a decrease in fixing strength between the battery unit and the vehicle body frame.
  • the motor (40) includes an upper fastening portion (45) fastened to the body frame (5) and a lower side.
  • a fastening portion (44) may be provided, and the upper fastening portion (45) may be formed smaller in the vehicle width direction than the lower fastening portion (44).
  • the strength of the fastening structure at the lower fastening portion can be set lower. This allows the motor to swing in the vehicle width direction with respect to the body frame at the upper fastening portion while securing the fixing strength between the motor and the body frame at the lower fastening portion. For this reason, inertia acting on the motor and the battery unit fixed to the motor during banking of the vehicle or the like is less likely to act on the vehicle body frame. Therefore, the steering performance can be improved.
  • FIG. 2 is a left side view of the motorcycle according to the embodiment. It is a left view of the power unit of an embodiment. It is a front view of a power unit of an embodiment. It is a top view of a power unit and a body frame of an embodiment. It is a perspective view showing the structure near the fastening part under the front of an embodiment. It is a perspective view showing the structure near the front upper fastening part of an embodiment. It is a perspective view showing the structure near the lower surface fastening part of an embodiment. It is a perspective view showing the structure of the lower fastening part periphery of an embodiment. It is a perspective view showing the structure of the circumference of the upper side fastening part of an embodiment.
  • FIG. 1 is a left side view of the motorcycle according to the embodiment.
  • the motorcycle 1 of the present embodiment is an off-road type saddle-ride type electric vehicle.
  • the motorcycle 1 includes a front wheel 2, a rear wheel 3, a front wheel suspension system 4, a body frame 5, a rear wheel suspension system 6, a power unit 7, a seat 8, and a cooling device 9.
  • the front wheel suspension system 4 includes a pair of left and right front forks 10 that support the front wheel 2 at lower ends, a top bridge 11 and a bottom bridge 12 provided between upper portions of the pair of front forks 10, and a top bridge 11.
  • a steering stem (not shown) provided between the bottom bridge 12 and inserted into the head pipe 16, and a steering handle 13 supported on the top bridge 11 are provided.
  • the front wheel 2 is steerably supported by a head pipe 16 of the vehicle body frame 5 via a front wheel suspension system 4.
  • the body frame 5 includes a head pipe 16, a pair of left and right main frames 17, a pair of left and right pivot frames 18, a single down frame 19, a pair of left and right lower frames 20, and a pair of left and right gussets 21 (cross members). ), A cross member 22, and a lower cross member 23, which are integrally connected by welding or the like.
  • the head pipe 16 is provided at the front end of the body frame 5.
  • the head pipe 16 supports the steering stem.
  • the pair of main frames 17 branch right and left from the upper part of the head pipe 16 and extend rearward and downward.
  • the pair of main frames 17 extend in a curved manner so as to expand outward in the vehicle width direction behind the head pipe 16 in a plan view seen from above (see FIG. 4).
  • Each of the pair of pivot frames 18 extends downward from the rear end of the main frame 17.
  • the down frame 19 extends downward from a lower portion of the head pipe 16.
  • the radiator of the cooling device 9 is attached to the down frame 19.
  • the pair of lower frames 20 branch right and left from the lower end of the down frame 19 and extend rearward, and are respectively connected to the lower end of the pivot frame 18.
  • the pair of gussets 21 connect the main frame 17 and the down frame 19 above the motor 40, respectively.
  • the pair of gussets 21 branch right and left from the upper portion of the down frame 19 and extend rearward, and are connected to the lower portion of the main frame 17.
  • the cross member 22 extends in the vehicle width direction and connects the upper portions of the pair of pivot frames 18.
  • a cushion support bracket 22a extending rearward and upward is fixedly provided.
  • a rear cushion 32 described below is connected to the cushion support bracket 22a.
  • the lower cross member 23 extends in the vehicle width direction and connects the lower portions of the pair of pivot frames 18.
  • the lower cross member 23 is fixedly provided with a link support bracket 23a extending rearward.
  • a link arm 34 described below is connected to the link support bracket 23a.
  • the body frame 5 further includes a pair of left and right seat rails 24 and a pair of left and right support rails 25.
  • Each of the pair of seat rails 24 is connected to the upper end of the pivot frame 18 and extends rearward and upward from the pivot frame 18.
  • the pair of seat rails 24 support the seat 8 from below.
  • the pair of support rails 25 are connected to the pivot frame 18 below the seat rails 24, respectively.
  • the pair of support rails 25 extend rearward and upward from the pivot frame 18 and are connected to the seat rail 24.
  • the body frame 5 is a semi-double cradle type.
  • the power unit 7 including the motor 40 and the battery unit 50 is mounted on the body frame 5 below the left and right main frames 17 behind the head pipe 16 and in front of the left and right pivot frames 18.
  • the body frame 5 surrounds the power unit 7 with a single down frame 19 and left and right lower frames 20 from the front and the bottom.
  • the rear wheel suspension system 6 includes a swing arm 30 that supports the rear wheel 3 at a rear end, a link mechanism 31 that is connected between a front portion of the swing arm 30 and lower portions of the pair of pivot frames 18, and a link. And a rear cushion 32 extending between the mechanism 31 and the cross member 22.
  • the swing arm 30 is provided below the rear part of the vehicle body.
  • the swing arm 30 extends back and forth.
  • the front end of the swing arm 30 is formed in a bifurcated shape branched right and left, and is supported by a vertically intermediate portion of the pair of pivot frames 18 via a pivot shaft 33 so as to be vertically swingable.
  • the link mechanism 31 includes a link arm 34 and a link member 35.
  • the link arm 34 is provided below the swing arm 30 in a side view.
  • the link arm 34 extends back and forth.
  • the front end of the link arm 34 is rotatably connected to the link support bracket 23a of the lower cross member 23.
  • the link member 35 is formed in a triangular shape in a side view.
  • the upper part of the link member 35 is rotatably connected to the front and rear middle part of the swing arm 30.
  • a lower rear portion of the link member 35 is rotatably connected to a rear end of the link arm 34.
  • a rear cushion 32 is connected to a front portion of the link member 35.
  • the rear cushion 32 is provided at the center of the vehicle width at the rear of the vehicle body.
  • the rear cushion 32 is formed in a cylindrical shape, and extends vertically along an axial direction (longitudinal direction) inclined forward.
  • the upper end of the rear cushion 32 is rotatably connected to the cushion support bracket 22 a of the cross member 22.
  • a lower end of the rear cushion 32 is rotatably connected to a front part of the link member 35.
  • the power unit 7 includes a motor 40 for driving the vehicle, a battery unit 50 that is a power source for the motor 40, and a PCU (power control unit) 70 that controls the motor 40.
  • the motor 40, the battery unit 50, and the PCU 70 are fixed to each other and integrated.
  • the power unit 7 is fixedly supported by the body frame 5.
  • the power unit 7 is disposed behind the down frame 19 and above the lower frame 20 in a side view.
  • the power unit 7 is disposed so as to be sandwiched between the pair of main frames 17 and the pair of pivot frames 18 from the outside in the vehicle width direction.
  • the lower portion of the power unit 7 is covered by an under cover 27 attached to the lower frame 20.
  • FIG. 2 is a left side view of the power unit according to the embodiment.
  • the motor 40 is disposed at the rear of the power unit 7.
  • the motor 40 includes a stator and a rotor (not shown), and a motor case 41 that houses the stator and the rotor.
  • the motor 40 is connected to the rear wheel 3 via a chain-type transmission mechanism disposed on the left side of the rear of the vehicle body (see FIG. 1).
  • the battery unit 50 is disposed at the front and upper part of the power unit 7.
  • the battery unit 50 is arranged in front of and above the motor 40.
  • the battery unit 50 includes a battery main body (not shown) and a hollow battery case 51 that houses the battery main body.
  • the battery case 51 is formed of a metal material such as aluminum or an aluminum alloy.
  • the battery case 51 includes a lower battery case 52 and an upper battery case 56.
  • Each of the lower battery case 52 and the upper battery case 56 accommodates a battery.
  • the lower battery case 52 and the upper battery case 56 are fastened to each other.
  • FIG. 3 is a front view of the power unit according to the embodiment.
  • the lower battery case 52 is located in front of the motor 40.
  • the lower battery case 52 is formed in a rectangular parallelepiped shape extending in the up-down direction, the front-rear direction, and the vehicle width direction.
  • the lower battery case 52 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction.
  • the vehicle width center CL is an imaginary line that overlaps with the center axis of the head pipe 16 when viewed from the front-back direction.
  • the lower battery case 52 is formed to have substantially the same size as the motor 40 in the vehicle width direction.
  • the lower battery case 52 protrudes above the motor 40.
  • a pair of lower frames 20 overlap with the lower battery case 52 when viewed from below (see FIG. 7).
  • the lower battery case 52 is formed so as to be able to be vertically divided along an imaginary plane extending substantially horizontally, and a lower part constitutes a case body 53 and an upper part constitutes a lid 54. I have.
  • the case main body 53 and the lid body 54 are fixed to each other by a plurality of fasteners for fastening the respective opening edges.
  • the lower battery case 52 is fixed to the motor case 41 at the lower part.
  • the upper battery case 56 is located above the motor 40 and the lower battery case 52.
  • the upper battery case 56 is formed larger in the front-rear direction than the lower battery case 52.
  • the upper battery case 56 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction.
  • the upper battery case 56 extends vertically with a substantially constant width when viewed from the front-back direction.
  • the upper battery case 56 is formed smaller than the lower battery case 52 in the vehicle width direction. Thereby, the lower battery case 52 protrudes to both sides in the vehicle width direction from the upper battery case 56.
  • FIG. 4 is a plan view of the power unit and the body frame of the embodiment.
  • the upper battery case 56 is arranged between the pair of main frames 17.
  • the upper battery case 56 is disposed between the pair of gussets 21 (see FIG. 1).
  • the upper battery case 56 is formed so that the front portion is narrower in the vehicle width direction than the portion other than the front portion, corresponding to the interval between the pair of main frames 17.
  • the lower surface of the upper battery case 56 is formed in a step shape along the outer surfaces of the motor 40 and the lower battery case 52.
  • the lower surface of the upper battery case 56 is in close contact with the upper surface and the rear surface of the lid 54 of the lower battery case 52.
  • the rear surface of the upper battery case 56 is formed so as to avoid the cross member 22 (see FIG. 1).
  • the rear surface of the upper battery case 56 is formed in a step shape so that the lower part is located forward with respect to the upper part.
  • a bulging portion 57 bulging forward is formed at an upper portion of the front surface of the upper battery case 56.
  • the lower part of the front surface of the upper battery case 56 extends along the same plane as the front surface of the lower battery case 52.
  • the upper surface of the upper battery case 56 extends substantially horizontally from the front to the rear, and then extends obliquely downward.
  • the upper battery case 56 is formed so as to be vertically splittable along an imaginary plane extending rearward and downward from the upper front end, and the lower part constitutes the case main body 58 and the upper part constitutes the lid 59.
  • the entire lid 59 is disposed above the pair of main frames 17 (see FIG. 1).
  • the case main body 58 and the lid body 59 are fixed to each other by a plurality of fasteners for fastening the respective opening edges.
  • the upper battery case 56 is fixed to the motor case 41 at the lower part.
  • the power unit 7 includes a plurality of fastening portions that are fastened to the body frame 5.
  • the plurality of fastening portions include a plurality of battery unit fastening portions 61 included in the battery unit 50 and a plurality of motor fastening portions 43 included in the motor 40.
  • the plurality of battery unit fastening portions 61 include a front fastening portion 62 provided on a front surface 50a facing forward in the battery unit 50 and a lower surface fastening portion 63 (second fastening portion) provided on a lower facing lower surface of the battery unit 50. And.
  • the front fastening portion 62 includes a front lower fastening portion 65 (second fastening portion) provided on the front surface of the lower battery case 52 and a front upper fastening portion 66 (first fastening portion) provided on the front surface of the upper battery case 56. ).
  • the front lower fastening portion 65 is provided at a position at the same height as the motor 40.
  • the front lower fastening portion 65 is integrally formed of the same member as the lower battery case 52.
  • the front lower fastening portion 65 protrudes forward from the front surface of the lower battery case 52.
  • the front lower fastening portion 65 protrudes such that the width in the vertical direction gradually decreases from the rear to the front.
  • the front lower fastening portion 65 extends in the vehicle width direction.
  • the front lower fastening portion 65 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction.
  • FIG. 5 is a perspective view showing the structure near the lower front fastening portion of the embodiment.
  • the lower front fastening portion 65 is supported by the down frame 19 via a pair of left and right first mount brackets 82.
  • the first mount bracket 82 is formed of a metal plate.
  • the pair of first mount brackets 82 are arranged so as to sandwich the front lower fastening portion 65 from the outside in the vehicle width direction, and are fastened to the front lower fastening portion 65 by bolts 81.
  • the bolt 81 is provided so as to sandwich the pair of first mount brackets 82 and the front lower fastening portion 65 in combination with a nut.
  • the fastening force of the bolt 81 can be applied to the front lower fastening portion 65 so as to intersect the vehicle width center CL.
  • the pair of first mount brackets 82 are fastened to the lower end of the down frame 19 by a pair of upper and lower bolts 83.
  • the front lower fastening portion 65 is indirectly fastened to the down frame 19 via the pair of first mount brackets 82.
  • the front upper fastening portion 66 is provided above and forward of the motor 40.
  • the front upper fastening portion 66 is arranged in the uppermost region when the battery unit 50 is equally divided into three in the vertical direction.
  • the front upper fastening portion 66 is surrounded by the main frame 17, the down frame 19, and the gusset 21 when viewed from the side in the vehicle width direction (see FIG. 1).
  • the front upper fastening portion 66 is integrally formed of the same member as the upper battery case 56.
  • the front upper fastening portion 66 protrudes forward from the front surface of the upper battery case 56.
  • the front upper fastening portion 66 protrudes from a region of the front surface of the upper battery case 56 extending from the bulging portion 57 to below the bulging portion 57. As shown in FIG. 3, the front upper fastening portion 66 extends in the vehicle width direction. The front upper fastening portion 66 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction. The front upper fastening portion 66 is formed smaller in the vehicle width direction than the front lower fastening portion 65.
  • FIG. 6 is a perspective view showing the structure near the fastening portion on the front surface of the embodiment.
  • the front upper fastening portion 66 is supported by the down frame 19 via a pair of left and right second mount brackets 86.
  • the second mount bracket 86 is formed of a metal plate.
  • the pair of second mount brackets 86 are arranged so as to sandwich the front upper fastening portion 66 from the outside in the vehicle width direction, and are fastened to the front upper fastening portion 66 by bolts 85.
  • the bolt 85 is provided so as to sandwich the pair of second mount brackets 86 and the upper front fastening portion 66 in combination with a nut.
  • the fastening force by the bolt 85 can be applied to the front upper fastening portion 66 so as to cross the vehicle width center CL.
  • the pair of second mount brackets 86 are fastened to the down frame 19 by a pair of upper and lower bolts 87 above the joint between the down frame 19 and the gusset 21.
  • the front upper fastening portion 66 is indirectly fastened to the down frame 19 via the pair of second mount brackets 86.
  • the lower surface fastening portion 63 is provided below and forward of the motor 40.
  • the lower surface fastening portion 63 is integrally formed of the same member as the lower battery case 52.
  • the lower surface fastening portion 63 protrudes downward from the lower surface of the lower battery case 52.
  • the lower surface fastening portion 63 protrudes so that the width in the front-rear direction gradually decreases from the upper side to the lower side.
  • the lower surface fastening portion 63 extends in the vehicle width direction.
  • the lower surface fastening portion 63 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction.
  • the lower surface fastening portion 63 is formed larger than the front upper fastening portion 66 in the vehicle width direction.
  • the lower surface fastening portion 63 is formed in the same size as the front lower fastening portion 65 in the vehicle width direction.
  • FIG. 7 is a perspective view showing the structure near the lower surface fastening portion of the embodiment.
  • the lower surface fastening portion 63 is supported by the pair of lower frames 20.
  • the lower surface fastening portion 63 is sandwiched from outside in the vehicle width direction by a pair of extending portions 20 a extending from the pair of lower frames 20.
  • the lower surface fastening portion 63 is fastened to the pair of extending portions 20 a by bolts 89.
  • the lower surface fastening portion 63 is directly fastened to the lower frame 20.
  • the bolt 89 is provided so as to sandwich the pair of extending portions 20a and the lower surface fastening portion 63 in combination with a nut. Thereby, the fastening force by the bolt 89 can be applied to the lower surface fastening portion 63 so as to cross the vehicle width center CL.
  • the front upper fastening portion 66 is provided above the rotation center O of the motor 40.
  • the rotation center O of the motor 40 is the rotation center of the rotor.
  • the front upper fastening portion 66 is provided above the center of gravity of the power unit 7. The front upper fastening portion 66 is farthest from the rotation center of the motor 40 among the plurality of battery unit fastening portions 61.
  • the motor fastening portion 43 includes a lower fastening portion 44 and an upper fastening portion 45 provided on the motor case 41.
  • FIG. 8 is a perspective view illustrating a structure around a lower fastening portion of the embodiment.
  • the lower fastening portion 44 is integrally formed of the same member as the motor case 41.
  • the lower fastening portion 44 projects rearward from a lower rear portion of the motor case 41.
  • the lower fastening portion 44 overlaps with the vehicle width center CL when viewed from above and below (see FIG. 4).
  • the lower fastening portion 44 has a through hole through which the pivot shaft 33 is inserted.
  • the lower fastening portion 44 is fastened to the pivot frame 18 on the pivot shaft 33 in a state of being sandwiched between the bifurcated front ends of the swing arm 30 from both sides in the vehicle width direction.
  • FIG. 9 is a perspective view illustrating a structure around the upper fastening portion of the embodiment.
  • the upper fastening portion 45 is formed integrally with the motor case 41 using the same member.
  • the upper fastening portion 45 protrudes rearward and upward from a rear upper portion of the motor case 41.
  • the upper fastening portion 45 is branched in the vehicle width direction so as to avoid the vehicle width center CL (see FIG. 3) and is formed in a forked shape.
  • the upper fastening portion 45 is supported by the cross member 22 via a pair of left and right third mount brackets 92.
  • the third mount bracket 92 is formed of a metal plate.
  • the pair of third mount brackets 92 are arranged so as to sandwich the upper fastening portion 45 from the outside in the vehicle width direction, and are fastened to the upper fastening portion 45 by bolts 91. Further, the pair of third mount brackets 92 is fastened to the cross member 22 by a pair of front and rear bolts 93 above the upper fastening portion 45. Thereby, the upper fastening portion 45 is indirectly fastened to the cross member 22 via the pair of third mount brackets 92.
  • the PCU 70 is a control device including a PDU (Power Drive Unit) that is a motor driver, an ECU (Electric Control Unit) that controls the PDU, and the like.
  • PCU 70 is arranged below motor 40 and battery unit 50.
  • the PCU 70 includes a casing that houses a circuit board and the like.
  • the casing of the PCU 70 is integrated with, for example, the motor case 41 of the motor 40.
  • the front upper fastening portion 66 is provided forward of the motor 40, and overlaps the vehicle width center CL when viewed from the front-back direction.
  • the battery unit 50 is not attached to the body frame 5 as compared with the case where the battery unit is fastened to the body frame on both sides of the vehicle width center CL when viewed from the front-rear direction. Swing in the width direction can be tolerated. Therefore, the inertia acting on the battery unit 50 and the motor 40 fixed to the battery unit 50 when the vehicle is banked or the like is less likely to act on the vehicle body frame 5. Therefore, the steering performance can be improved.
  • the front upper fastening portion 66 is provided above the motor 40.
  • the gravity of the motor 40 acts on the front upper fastening portion 66 more than the height of the motor 40 or the fastening portion provided below the motor 40.
  • the structure of the front upper fastening portion 66 can be simplified and lightened, and the strength of the fastening structure in the front upper fastening portion 66 can be set low. Therefore, even if the swing of the battery unit 50 with respect to the body frame 5 in the vehicle width direction is allowed, it is possible to suppress a decrease in the fixing strength between the battery unit 50 and the body frame 5.
  • the motorcycle 1 with improved steering performance can be provided.
  • the upper battery case 56 includes a front upper fastening portion 66
  • the lower battery case 52 includes a front lower fastening portion 65 and a lower fastening portion 63.
  • the front upper fastening portion 66 is formed smaller in the vehicle width direction than the front lower fastening portion 65 and the lower fastening portion 63. According to this configuration, the front lower fastening portion 65 and the lower fastening portion 63 are provided below the front upper fastening portion 66, so that the front lower fastening portion 65 and the lower fastening portion 63 are larger than the front upper fastening portion 66. Gravity of the battery unit 50 and the motor 40 largely acts.
  • the front upper fastening portion 66 is formed smaller in the vehicle width direction than the front lower fastening portion 65 and the lower fastening portion 63, so that the battery unit 50 and the body frame 5 are connected to each other at the front lower fastening portion 65 and the lower fastening portion 63. It is possible to set the strength of the fastening structure at the front upper fastening portion 66 to be low while securing the fixing strength. Therefore, swinging of the battery unit 50 with respect to the vehicle body frame 5 in the vehicle width direction at the front upper fastening portion 66 can be permitted, and steering performance can be improved.
  • the upper battery case 56 is formed smaller in the vehicle width direction than the lower battery case 52. According to this configuration, the center of gravity of the battery unit 50 can be lowered as compared with the case where the upper battery case is formed larger in the vehicle width direction than the lower battery case. Therefore, the moment of inertia of the battery unit 50 when the vehicle is banked can be reduced, and steering performance can be improved.
  • the upper battery case 56 is disposed at a position closer to the occupant than the lower battery case 52. For this reason, since the upper battery case 56 is smaller in the vehicle width direction than the lower battery case 52, when the occupant sits above the battery case 51, the battery unit 50 is less likely to be an obstacle for the occupant.
  • the battery unit The swing of the unit 50 in the vehicle width direction can be allowed. For this reason, inertia acting on the battery unit 50 and the motor 40 fixed to the battery unit 50 when the vehicle is banked or the like is less likely to act on the vehicle body frame 5. Therefore, the steering performance can be further improved.
  • the front upper fastening portion 66 is the most distant from the rotation center O of the motor 40 among the plurality of battery unit fastening portions 61. According to this configuration, since the center of gravity of the motor 40 is located near the rotation center O of the motor 40, the front upper fastening portion 66 is located at a position farthest from the center of gravity of the motor 40 among the plurality of battery unit fastening portions 61. It can be provided. Accordingly, the force transmitted from the motor 40 to the upper front fastening portion 66 via the battery unit 50 can be reduced, so that the configuration of the front upper fastening portion 66 is simplified and lightened, and the strength of the fastening structure in the front upper fastening portion 66 is reduced. Can be set low. Therefore, even if the swing of the battery unit 50 with respect to the body frame 5 in the vehicle width direction is allowed, it is possible to suppress a decrease in the fixing strength between the battery unit 50 and the body frame 5.
  • the front upper fastening portion 66 is surrounded by the main frame 17, the down frame 19, and the gusset 21 when viewed from the side in the vehicle width direction. According to this configuration, the front upper fastening portion 66 is arranged near the head pipe 16. That is, the front upper fastening portion 66 is disposed above the gusset 21 in a side view, as compared with the case where the front upper fastening portion 66 is disposed below the gusset 21. Thereby, the strength of the fastening structure in the front upper fastening portion 66 can be set low. Therefore, even if the swing of the battery unit 50 with respect to the body frame 5 in the vehicle width direction is allowed, it is possible to suppress a decrease in the fixing strength between the battery unit 50 and the body frame 5. Further, since the front upper fastening portion 66 does not overlap with the vehicle body frame 5 in side view, access to the front upper fastening portion 66 is facilitated. Therefore, the assemblability of the vehicle body frame 5 and the battery unit 50 can be improved.
  • Front upper fastening portion 66 is arranged in the uppermost region when battery unit 50 is divided into three in the vertical direction. According to this configuration, the front upper fastening portion 66 is arranged at a position away from the motor 40. Accordingly, the force transmitted from the motor 40 to the upper front fastening portion 66 via the battery unit 50 can be reduced, so that the configuration of the front upper fastening portion 66 is simplified and lightened, and the strength of the fastening structure in the front upper fastening portion 66 is reduced. Can be set low. Therefore, even if the swing of the battery unit 50 with respect to the body frame 5 in the vehicle width direction is allowed, it is possible to suppress a decrease in the fixing strength between the battery unit 50 and the body frame 5.
  • the motor 40 includes an upper fastening portion 45 and a lower fastening portion 44 fastened to the vehicle body frame 5.
  • the upper fastening portion 45 is formed smaller in the vehicle width direction than the lower fastening portion 44. According to this configuration, since the gravity of the motor 40 is less likely to act on the upper fastening portion 45 than on the lower fastening portion 44, the strength of the fastening structure in the lower fastening portion 44 can be set lower. This allows the upper fastening portion 45 to allow the motor 40 to swing with respect to the body frame 5 in the vehicle width direction while securing the fixing strength between the motor 40 and the body frame 5 at the lower fastening portion 44. For this reason, inertia acting on the motor 40 and the battery unit 50 fixed to the motor 40 when the vehicle is banked or the like is less likely to act on the vehicle body frame 5. Therefore, the steering performance can be improved.
  • the saddle-ride type electric vehicle includes not only a motorcycle in which a driver rides across a vehicle body but also a three-wheeled vehicle (a front two-wheeled vehicle and a front two-wheeled vehicle in addition to a front two-wheeled vehicle). Vehicles).
  • the present invention is applicable not only to motorcycles but also to four-wheel vehicles such as automobiles.
  • the arrangement of the plurality of battery unit fastening portions 61 is not limited to the above embodiment.
  • only the front upper fastening portion 66 of the plurality of battery unit fastening portions 61 is provided on the front surface 50a of the battery unit 50 above and forward of the motor 40, but is not limited thereto. That is, a plurality of fastening portions may be provided on the front surface 50 a of the battery unit 50 above and forward of the motor 40. In this case, it is desirable that all the fastening portions provided on the front surface 50a of the battery unit 50 above and in front of the motor 40 overlap the vehicle width center CL when viewed from the front-back direction.
  • the plurality of battery unit fastening portions 61 are fastened to the down frame 19 or the lower frame 20, but are not limited thereto.
  • some of the plurality of battery unit fastening portions may be fastened to the main frame 17 or the gusset 21.
  • one bolt 81 is used in combination with a nut for the fastening structure of the lower front fastening portion 65, but the invention is not limited to this.
  • a pair of bolts 81 may be provided on the left and right sides, each of which is screwed to the front lower fastening portion 65, and used to fasten the pair of first mount brackets 82 to the front lower fastening portion 65 separately.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

This two-wheeled powered vehicle is provided with: a vehicle drive motor (40); a battery unit (50) which is the power source of the motor (40), is disposed in front of and above the motor (40), and is affixed to the motor (40); and a vehicle body frame for supporting the motor (40) and the battery unit (50). The battery unit (50) has provided at the front surface (50a) thereof facing forward of the vehicle a front surface upper fastening section (66) fastened to the vehicle body frame. The front surface upper fastening section (66) is provided above and in front of the motor (40) and overlaps the vehicle width center when viewed in the vehicle front-rear direction.

Description

鞍乗り型電動車両Saddle-type electric vehicle
　本発明は、鞍乗り型電動車両に関するものである。
　本願は、２０１８年９月２７日に、日本に出願された特願２０１８－１８１６６０号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a saddle-ride type electric vehicle.
Priority is claimed on Japanese Patent Application No. 2018-181660 filed on Sep. 27, 2018, the content of which is incorporated herein by reference.
　鞍乗り型電動車両として、駆動用のモータ、およびモータに電力を供給するバッテリユニットを備え、モータおよびバッテリユニットを車体フレームに支持させたものがある（例えば、特許文献１参照）。特許文献１には、電動モータおよびバッテリをケースに収納してパワーユニットアッセンブリを構成し、ケースがフレームに組み付けられた電動二輪車が記載されている。 There is a saddle-ride type electric vehicle that includes a driving motor and a battery unit that supplies power to the motor, and the motor and the battery unit are supported by a vehicle body frame (for example, see Patent Document 1). Patent Literature 1 discloses an electric motorcycle in which an electric motor and a battery are housed in a case to form a power unit assembly, and the case is assembled to a frame.
日本国特開２０１２－９６５９４号公報Japanese Patent Application Laid-Open No. 2012-96594
　しかしながら、モータおよびバッテリユニットは重量物であるため、車体フレームとの締結構造によって操舵性能が変化する可能性がある。このため、モータおよびバッテリユニットと車体フレームとの締結構造においては、車両の操舵性能を向上させるために改善の余地がある。 However, since the motor and the battery unit are heavy, the steering performance may be changed depending on the fastening structure with the vehicle body frame. For this reason, there is room for improvement in the fastening structure between the motor and the battery unit and the body frame in order to improve the steering performance of the vehicle.
　そこで本発明は、操舵性能の向上が図られた鞍乗り型電動車両を提供するものである。 Accordingly, the present invention provides a saddle-ride type electric vehicle with improved steering performance.
（１）本発明の一態様に係る鞍乗り型電動車両は、車両駆動用のモータ（４０）と、前記モータ（４０）の電源であって、前記モータ（４０）の前方および上方に配置され、前記モータ（４０）に固定されたバッテリユニット（５０）と、前記モータ（４０）および前記バッテリユニット（５０）を支持する車体フレーム（５）と、を備え、前記バッテリユニット（５０）は、車両前方に向く前面（５０ａ）に、前記車体フレーム（５）に締結される第１締結部（６６）を備え、前記第１締結部（６６）は、前記モータ（４０）よりも上方かつ前方に設けられ、車両前後方向から見て車幅中心（ＣＬ）に重なっている。 (1) A saddle-ride type electric vehicle according to one aspect of the present invention is a vehicle driving motor (40) and a power supply for the motor (40), which are disposed in front of and above the motor (40). , A battery unit (50) fixed to the motor (40), and a body frame (5) supporting the motor (40) and the battery unit (50), wherein the battery unit (50) A first fastening portion (66) fastened to the vehicle body frame (5) is provided on a front surface (50a) facing the front of the vehicle, and the first fastening portion (66) is above and forward of the motor (40). At the center of the vehicle width (CL) when viewed from the front-rear direction of the vehicle.
　この態様によれば、第１締結部は、モータよりも前方に設けられ、車両前後方向から見て車幅中心に重なっている。これにより、第１締結部において、バッテリユニットが車両前後方向から見て車幅中心を挟んだ両側のそれぞれで車体フレームに締結される場合と比較して、車体フレームに対するバッテリユニットの車幅方向への揺れを許容できる。このため、車両のバンク時などにバッテリユニット、およびバッテリユニットに固定されたモータに働く慣性が車体フレームに作用しにくくなる。よって、操舵性能の向上を図ることができる。
　しかも、第１締結部は、モータよりも上方に設けられている。これにより、第１締結部には、モータと同じ高さ、またはモータよりも下方に設けられた締結部よりも、モータの重力が小さく作用する。このため、第１締結部の構成を簡素化して軽量化し、第１締結部における締結構造の強度を低く設定できる。よって、車体フレームに対するバッテリユニットの車幅方向への揺れを許容しても、バッテリユニットと車体フレームとの固定強度が低下することを抑制できる。
　以上により、操舵性能の向上が図られた鞍乗り型電動車両を提供できる。 According to this aspect, the first fastening portion is provided forward of the motor, and overlaps the center of the vehicle width when viewed from the vehicle front-rear direction. Thereby, in the first fastening portion, as compared with the case where the battery unit is fastened to the vehicle body frame on both sides of the vehicle width center when viewed from the vehicle front-rear direction, the battery unit extends in the vehicle width direction relative to the vehicle body frame Can be tolerated. For this reason, inertia acting on the battery unit and the motor fixed to the battery unit during banking of the vehicle or the like is less likely to act on the vehicle body frame. Therefore, the steering performance can be improved.
In addition, the first fastening portion is provided above the motor. As a result, the gravity of the motor acts on the first fastening portion less than the height of the motor or the fastening portion provided below the motor. For this reason, the structure of the first fastening portion can be simplified and lightened, and the strength of the fastening structure in the first fastening portion can be set low. Therefore, even if swinging of the battery unit with respect to the vehicle body frame in the vehicle width direction is allowed, it is possible to suppress a decrease in fixing strength between the battery unit and the vehicle body frame.
As described above, a saddle-ride type electric vehicle with improved steering performance can be provided.
（２）上記（１）に記載の鞍乗り型電動車両において、前記バッテリユニット（５０）は、前記モータ（４０）の前方に位置する下側バッテリケース（５２）と、前記モータ（４０）および前記下側バッテリケース（５２）の上方に位置する上側バッテリケース（５６）と、を備え、前記上側バッテリケース（５６）は、前記第１締結部（６６）を備え、前記下側バッテリケース（５２）は、前記車体フレーム（５）に締結される少なくとも１つの第２締結部（６３，６５）を備え、前記第１締結部（６６）は、前記少なくとも１つの第２締結部（６３，６５）よりも車幅方向において小さく形成されていてもよい。 (2) In the saddle-ride type electric vehicle according to (1), the battery unit (50) includes a lower battery case (52) positioned in front of the motor (40), the motor (40) and An upper battery case (56) located above the lower battery case (52). The upper battery case (56) includes the first fastening portion (66), and the lower battery case (56). 52) includes at least one second fastening portion (63, 65) fastened to the vehicle body frame (5), and the first fastening portion (66) includes the at least one second fastening portion (63, 65). 65) may be formed smaller in the vehicle width direction.
　この態様によれば、第２締結部が第１締結部よりも下方に設けられることで、第２締結部には第１締結部よりもバッテリユニットおよびモータの重力が大きく作用する。このため、第１締結部を第２締結部よりも車幅方向に小さく形成することで、第２締結部においてバッテリユニットと車体フレームとの固定強度を確保しつつ、第１締結部における締結構造の強度を低く設定することが可能となる。よって、第１締結部において車体フレームに対するバッテリユニットの車幅方向への揺れを許容でき、操舵性能の向上を図ることができる。 According to this aspect, since the second fastening portion is provided below the first fastening portion, the gravity of the battery unit and the motor acts more on the second fastening portion than on the first fastening portion. For this reason, by forming the first fastening portion smaller in the vehicle width direction than the second fastening portion, the fastening structure in the first fastening portion while securing the fixing strength between the battery unit and the body frame in the second fastening portion. Can be set low. Therefore, the swing of the battery unit in the vehicle width direction with respect to the body frame in the first fastening portion can be allowed, and the steering performance can be improved.
（３）上記（１）または（２）に記載の鞍乗り型電動車両において、前記バッテリユニット（５０）は、前記モータ（４０）の前方に位置する下側バッテリケース（５２）と、前記モータ（４０）および前記下側バッテリケース（５２）の上方に位置する上側バッテリケース（５６）と、を備え、前記上側バッテリケース（５６）は、前記下側バッテリケース（５２）よりも車幅方向において小さく形成されていてもよい。 (3) In the saddle-ride type electric vehicle according to the above (1) or (2), the battery unit (50) includes a lower battery case (52) located in front of the motor (40), and the motor (40) and an upper battery case (56) located above the lower battery case (52), wherein the upper battery case (56) is wider in the vehicle width direction than the lower battery case (52). May be formed small.
　この態様によれば、上側バッテリケースが下側バッテリケースよりも車幅方向において大きく形成されている場合と比較して、バッテリユニットの重心を下げることができる。このため、車両のバンク時におけるバッテリユニットの慣性モーメントを小さくすることができ、操舵性能の向上を図ることができる。
　また、上側バッテリケースは、下側バッテリケースよりも乗員に近い位置に配置される。このため、上側バッテリケースが下側バッテリケースよりも車幅方向に小さいことで、バッテリケースの上方に乗員が着座する場合に、バッテリユニットが乗員にとって邪魔になりにくくなる。 According to this aspect, the center of gravity of the battery unit can be lowered as compared with the case where the upper battery case is formed larger in the vehicle width direction than the lower battery case. Therefore, the moment of inertia of the battery unit during banking of the vehicle can be reduced, and steering performance can be improved.
The upper battery case is arranged at a position closer to the occupant than the lower battery case. For this reason, since the upper battery case is smaller than the lower battery case in the vehicle width direction, when the occupant sits above the battery case, the battery unit is less likely to be an obstacle for the occupant.
（４）上記（１）から（３）のいずれかに記載の鞍乗り型電動車両において、前記バッテリユニット（５０）は、前記車体フレーム（５）に締結される、前記第１締結部（６６）を含む複数の締結部（６１）を備え、前記複数の締結部（６１）は、車両前後方向から見て車幅中心（ＣＬ）に重なっていてもよい。 (4) In the saddle-ride type electric vehicle according to any one of (1) to (3), the battery unit (50) is fastened to the body frame (5). ), The plurality of fastening portions (61) may overlap the vehicle width center (CL) when viewed from the vehicle front-rear direction.
　この態様によれば、バッテリユニットが車両前後方向から見て車幅中心を挟んだ両側のそれぞれで車体フレームに締結された場合と比較して、複数の締結部において車体フレームに対するバッテリユニットの車幅方向への揺れを許容できる。このため、車両のバンク時などにバッテリユニット、およびバッテリユニットに固定されたモータに働く慣性がより車体フレームに作用しにくくなる。したがって、操舵性能をより向上させることができる。 According to this aspect, the vehicle width of the battery unit relative to the body frame at the plurality of fastening portions is smaller than when the battery unit is fastened to the body frame on both sides of the vehicle width center when viewed from the vehicle front-rear direction. Swing in the direction can be tolerated. Therefore, the inertia acting on the battery unit and the motor fixed to the battery unit when the vehicle is banked or the like is less likely to act on the vehicle body frame. Therefore, the steering performance can be further improved.
（５）上記（１）から（４）のいずれかに記載の鞍乗り型電動車両において、前記バッテリユニット（５０）は、前記車体フレーム（５）に締結される、前記第１締結部（６６）を含む複数の締結部（６１）を備え、前記第１締結部（６６）は、前記複数の締結部（６１）のうち、前記モータ（４０）の回転中心（Ｏ）から最も離間していてもよい。 (5) In the saddle-ride type electric vehicle according to any one of (1) to (4), the battery unit (50) is fastened to the vehicle body frame (5). ), The first fastening portion (66) is the most distant from the rotation center (O) of the motor (40) among the plurality of fastening portions (61). You may.
　この態様によれば、モータの回転中心近傍にはモータの重心が位置するので、第１締結部を複数の締結部のうち最もモータの重心から離れた位置に設けることが可能となる。これにより、モータからバッテリユニットを介して第１締結部に伝わる力を小さくできるので、第１締結部の構成を簡素化して軽量化し、第１締結部における締結構造の強度を低く設定できる。よって、車体フレームに対するバッテリユニットの車幅方向への揺れを許容しても、バッテリユニットと車体フレームとの固定強度が低下することを抑制できる。 According to this aspect, since the center of gravity of the motor is located near the rotation center of the motor, the first fastening portion can be provided at a position farthest from the center of gravity of the motor among the plurality of fastening portions. Thus, the force transmitted from the motor to the first fastening portion via the battery unit can be reduced, so that the configuration of the first fastening portion can be simplified and lightened, and the strength of the fastening structure in the first fastening portion can be set low. Therefore, even if swinging of the battery unit with respect to the vehicle body frame in the vehicle width direction is allowed, it is possible to suppress a decrease in fixing strength between the battery unit and the vehicle body frame.
（６）上記（１）から（５）のいずれかに記載の鞍乗り型電動車両において、前記車体フレーム（５）は、前輪（２）を操向可能に支持するヘッドパイプ（１６）と、前記ヘッドパイプ（１６）から後方に延びる左右一対のメインフレーム（１７）と、前記ヘッドパイプ（１６）から下方に延びるダウンフレーム（１９）と、前記モータ（４０）よりも上方において前記一対のメインフレーム（１７）と前記ダウンフレーム（１９）とを連結するクロス部材（２１）と、を備え、前記第１締結部（６６）は、車幅方向から見た側面視で、前記メインフレーム（１７）と前記ダウンフレーム（１９）と前記クロス部材（２１）とに囲まれていてもよい。 (6) In the saddle-ride type electric vehicle according to any one of (1) to (5), the vehicle body frame (5) includes a head pipe (16) that steerably supports a front wheel (2); A pair of left and right main frames (17) extending rearward from the head pipe (16), a down frame (19) extending downward from the head pipe (16), and the pair of main frames above the motor (40). A cross member (21) for connecting the frame (17) and the down frame (19), wherein the first fastening portion (66) is configured such that the main frame (17) is viewed from the side in the vehicle width direction. ), The down frame (19) and the cross member (21).
　この態様によれば、第１締結部がヘッドパイプ近傍に配置される。すなわち、第１締結部は、側面視でクロス部材よりも下方に配置される場合と比較して、上方に配置される。これにより、第１締結部における締結構造の強度を低く設定できる。よって、車体フレームに対するバッテリユニットの車幅方向への揺れを許容しても、バッテリユニットと車体フレームとの固定強度が低下することを抑制できる。
　また、側面視で第１締結部が車体フレームに重ならないので、第１締結部へのアクセスが容易となる。したがって、車体フレームとバッテリユニットとの組み付け性を向上させることができる。 According to this aspect, the first fastening portion is arranged near the head pipe. That is, the first fastening portion is disposed above the cross member in a side view as compared with the case where the first fastening portion is disposed below the cross member. Thereby, the strength of the fastening structure in the first fastening portion can be set low. Therefore, even if swinging of the battery unit with respect to the vehicle body frame in the vehicle width direction is allowed, it is possible to suppress a decrease in fixing strength between the battery unit and the vehicle body frame.
In addition, since the first fastening portion does not overlap with the vehicle body frame in side view, access to the first fastening portion is facilitated. Therefore, the assemblability of the vehicle body frame and the battery unit can be improved.
（７）上記（１）から（６）のいずれかに記載の鞍乗り型電動車両において、前記第１締結部（６６）は、前記バッテリユニット（５０）を車両の高さ方向で３分割した場合の最上部の領域に配置されていてもよい。 (7) In the saddle-ride type electric vehicle according to any one of the above (1) to (6), the first fastening portion (66) divides the battery unit (50) into three in a height direction of the vehicle. It may be arranged in the uppermost region in the case.
　この態様によれば、第１締結部がモータから離れた位置に配置される。これにより、モータからバッテリユニットを介して第１締結部に伝わる力を小さくできるので、第１締結部の構成を簡素化して軽量化し、第１締結部における締結構造の強度を低く設定できる。よって、車体フレームに対するバッテリユニットの車幅方向への揺れを許容しても、バッテリユニットと車体フレームとの固定強度が低下することを抑制できる。 According to this aspect, the first fastening portion is arranged at a position away from the motor. Thus, the force transmitted from the motor to the first fastening portion via the battery unit can be reduced, so that the configuration of the first fastening portion can be simplified and lightened, and the strength of the fastening structure in the first fastening portion can be set low. Therefore, even if swinging of the battery unit with respect to the vehicle body frame in the vehicle width direction is allowed, it is possible to suppress a decrease in fixing strength between the battery unit and the vehicle body frame.
（８）上記（１）から（７）のいずれかに記載の鞍乗り型電動車両において、前記モータ（４０）は、前記車体フレーム（５）に締結される上側締結部（４５）および下側締結部（４４）を備え、前記上側締結部（４５）は、前記下側締結部（４４）よりも車幅方向において小さく形成されていてもよい。 (8) In the saddle-ride type electric vehicle according to any one of (1) to (7), the motor (40) includes an upper fastening portion (45) fastened to the body frame (5) and a lower side. A fastening portion (44) may be provided, and the upper fastening portion (45) may be formed smaller in the vehicle width direction than the lower fastening portion (44).
　この態様によれば、上側締結部には下側締結部よりもモータの重力が作用しにくいので、下側締結部における締結構造の強度を低く設定できる。これにより、下側締結部においてモータと車体フレームとの固定強度を確保しつつ、上側締結部において車体フレームに対するモータの車幅方向への揺れを許容できる。このため、車両のバンク時などにモータ、およびモータに固定されたバッテリユニットに働く慣性が車体フレームに作用しにくくなる。よって、操舵性能の向上を図ることができる。 According to this aspect, since the gravity of the motor is less likely to act on the upper fastening portion than on the lower fastening portion, the strength of the fastening structure at the lower fastening portion can be set lower. This allows the motor to swing in the vehicle width direction with respect to the body frame at the upper fastening portion while securing the fixing strength between the motor and the body frame at the lower fastening portion. For this reason, inertia acting on the motor and the battery unit fixed to the motor during banking of the vehicle or the like is less likely to act on the vehicle body frame. Therefore, the steering performance can be improved.
　本発明によれば、操舵性能の向上が図られた鞍乗り型電動車両を提供することができる。 According to the present invention, it is possible to provide a saddle-ride type electric vehicle with improved steering performance.
実施形態の自動二輪車の左側面図である。FIG. 2 is a left side view of the motorcycle according to the embodiment. 実施形態のパワーユニットの左側面図である。It is a left view of the power unit of an embodiment. 実施形態のパワーユニットの正面図である。It is a front view of a power unit of an embodiment. 実施形態のパワーユニットおよび車体フレームの平面図である。It is a top view of a power unit and a body frame of an embodiment. 実施形態の前面下締結部近傍の構造を示す斜視図である。It is a perspective view showing the structure near the fastening part under the front of an embodiment. 実施形態の前面上締結部近傍の構造を示す斜視図である。It is a perspective view showing the structure near the front upper fastening part of an embodiment. 実施形態の下面締結部近傍の構造を示す斜視図である。It is a perspective view showing the structure near the lower surface fastening part of an embodiment. 実施形態の下側締結部周辺の構造を示す斜視図である。It is a perspective view showing the structure of the lower fastening part periphery of an embodiment. 実施形態の上側締結部周辺の構造を示す斜視図である。It is a perspective view showing the structure of the circumference of the upper side fastening part of an embodiment.
　以下、本発明の実施形態を図面に基づいて説明する。なお、以下の説明における前後上下左右等の方向は、以下に説明する車両における方向と同一とする。すなわち、上下方向は鉛直方向と一致し、左右方向は車幅方向と一致する。また、以下の説明に用いる図中において、矢印ＵＰは上方、矢印ＦＲは前方、矢印ＬＨは左方をそれぞれ示している。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that directions such as front, rear, up, down, left, and right in the following description are the same as directions in a vehicle described below. That is, the up-down direction matches the vertical direction, and the left-right direction matches the vehicle width direction. In the drawings used in the following description, arrow UP indicates upward, arrow FR indicates forward, and arrow LH indicates left.
　図１は、実施形態の自動二輪車の左側面図である。
　図１に示すように、本実施形態の自動二輪車１は、オフロードタイプの鞍乗り型電動車両である。自動二輪車１は、前輪２と、後輪３と、前輪懸架系４と、車体フレーム５と、後輪懸架系６と、パワーユニット７と、シート８と、冷却装置９と、を備える。 FIG. 1 is a left side view of the motorcycle according to the embodiment.
As shown in FIG. 1, the motorcycle 1 of the present embodiment is an off-road type saddle-ride type electric vehicle. The motorcycle 1 includes a front wheel 2, a rear wheel 3, a front wheel suspension system 4, a body frame 5, a rear wheel suspension system 6, a power unit 7, a seat 8, and a cooling device 9.
　前輪懸架系４は、下端部に前輪２を軸支する左右一対のフロントフォーク１０と、一対のフロントフォーク１０の上部の間に渡って設けられるトップブリッジ１１およびボトムブリッジ１２と、トップブリッジ１１とボトムブリッジ１２との間に渡って設けられてヘッドパイプ１６内に挿通されるステアリングステム（図示略）と、トップブリッジ１１上に支持される操向ハンドル１３と、を備える。前輪２は、前輪懸架系４を介して車体フレーム５のヘッドパイプ１６によって操向可能に支持されている。 The front wheel suspension system 4 includes a pair of left and right front forks 10 that support the front wheel 2 at lower ends, a top bridge 11 and a bottom bridge 12 provided between upper portions of the pair of front forks 10, and a top bridge 11. A steering stem (not shown) provided between the bottom bridge 12 and inserted into the head pipe 16, and a steering handle 13 supported on the top bridge 11 are provided. The front wheel 2 is steerably supported by a head pipe 16 of the vehicle body frame 5 via a front wheel suspension system 4.
　車体フレーム５は、ヘッドパイプ１６と、左右一対のメインフレーム１７と、左右一対のピボットフレーム１８と、単一のダウンフレーム１９と、左右一対のロアフレーム２０と、左右一対のガセット２１（クロス部材）と、クロスメンバ２２と、ロアクロスメンバ２３と、を備え、これらが溶接等で一体に結合されている。 The body frame 5 includes a head pipe 16, a pair of left and right main frames 17, a pair of left and right pivot frames 18, a single down frame 19, a pair of left and right lower frames 20, and a pair of left and right gussets 21 (cross members). ), A cross member 22, and a lower cross member 23, which are integrally connected by welding or the like.
　ヘッドパイプ１６は、車体フレーム５の前端に設けられている。ヘッドパイプ１６は、ステアリングステムを支持する。一対のメインフレーム１７は、ヘッドパイプ１６の上部から左右に分岐して後下方に延びている。一対のメインフレーム１７は、上方から見た平面視において、ヘッドパイプ１６の後方で車幅方向外側に膨らむように湾曲しつつ延びている（図４参照）。一対のピボットフレーム１８は、それぞれメインフレーム１７の後端部から下方に延びている。ダウンフレーム１９は、ヘッドパイプ１６の下部から下方へ延びている。ダウンフレーム１９には、冷却装置９のラジエータが取り付けられている。一対のロアフレーム２０は、ダウンフレーム１９の下端部から左右に分岐して後方に延び、それぞれピボットフレーム１８の下端部に連結されている。 The head pipe 16 is provided at the front end of the body frame 5. The head pipe 16 supports the steering stem. The pair of main frames 17 branch right and left from the upper part of the head pipe 16 and extend rearward and downward. The pair of main frames 17 extend in a curved manner so as to expand outward in the vehicle width direction behind the head pipe 16 in a plan view seen from above (see FIG. 4). Each of the pair of pivot frames 18 extends downward from the rear end of the main frame 17. The down frame 19 extends downward from a lower portion of the head pipe 16. The radiator of the cooling device 9 is attached to the down frame 19. The pair of lower frames 20 branch right and left from the lower end of the down frame 19 and extend rearward, and are respectively connected to the lower end of the pivot frame 18.
　一対のガセット２１は、モータ４０よりも上方で、それぞれメインフレーム１７とダウンフレーム１９とを連結している。一対のガセット２１は、それぞれダウンフレーム１９の上部から左右に分岐して後方に延び、メインフレーム１７の下部に連結されている。クロスメンバ２２は、車幅方向に延び、一対のピボットフレーム１８の上部間を連結している。クロスメンバ２２の車幅方向中央部には、後上方に延出するクッション支持ブラケット２２ａが固定的に設けられている。クッション支持ブラケット２２ａには、後述するリアクッション３２が連結されている。ロアクロスメンバ２３は、車幅方向に延び、一対のピボットフレーム１８の下部間を連結している。ロアクロスメンバ２３には、後方に延出するリンク支持ブラケット２３ａが固定的に設けられている。リンク支持ブラケット２３ａには、後述するリンクアーム３４が連結されている。 The pair of gussets 21 connect the main frame 17 and the down frame 19 above the motor 40, respectively. The pair of gussets 21 branch right and left from the upper portion of the down frame 19 and extend rearward, and are connected to the lower portion of the main frame 17. The cross member 22 extends in the vehicle width direction and connects the upper portions of the pair of pivot frames 18. At the center of the cross member 22 in the vehicle width direction, a cushion support bracket 22a extending rearward and upward is fixedly provided. A rear cushion 32 described below is connected to the cushion support bracket 22a. The lower cross member 23 extends in the vehicle width direction and connects the lower portions of the pair of pivot frames 18. The lower cross member 23 is fixedly provided with a link support bracket 23a extending rearward. A link arm 34 described below is connected to the link support bracket 23a.
　車体フレーム５は、左右一対のシートレール２４と、左右一対のサポートレール２５と、をさらに備える。一対のシートレール２４は、それぞれピボットフレーム１８の上端部に連結され、ピボットフレーム１８から後上方に延びている。一対のシートレール２４は、シート８を下方から支持している。一対のサポートレール２５は、それぞれシートレール２４の下方でピボットフレーム１８に連結されている。一対のサポートレール２５は、ピボットフレーム１８から後上方に延び、シートレール２４に連結されている。 The body frame 5 further includes a pair of left and right seat rails 24 and a pair of left and right support rails 25. Each of the pair of seat rails 24 is connected to the upper end of the pivot frame 18 and extends rearward and upward from the pivot frame 18. The pair of seat rails 24 support the seat 8 from below. The pair of support rails 25 are connected to the pivot frame 18 below the seat rails 24, respectively. The pair of support rails 25 extend rearward and upward from the pivot frame 18 and are connected to the seat rail 24.
　車体フレーム５は、セミダブルクレードル型とされる。車体フレーム５は、ヘッドパイプ１６後方の左右メインフレーム１７の下方であって、左右ピボットフレーム１８の前方に、モータ４０およびバッテリユニット５０を含むパワーユニット７を搭載している。車体フレーム５は、単一のダウンフレーム１９および左右ロアフレーム２０によってパワーユニット７を前方および下方から囲っている。 The body frame 5 is a semi-double cradle type. The power unit 7 including the motor 40 and the battery unit 50 is mounted on the body frame 5 below the left and right main frames 17 behind the head pipe 16 and in front of the left and right pivot frames 18. The body frame 5 surrounds the power unit 7 with a single down frame 19 and left and right lower frames 20 from the front and the bottom.
　後輪懸架系６は、後端部に後輪３を軸支するスイングアーム３０と、スイングアーム３０の前部と一対のピボットフレーム１８の下部との間に連結されたリンク機構３１と、リンク機構３１とクロスメンバ２２との間に渡るリアクッション３２と、を備える。 The rear wheel suspension system 6 includes a swing arm 30 that supports the rear wheel 3 at a rear end, a link mechanism 31 that is connected between a front portion of the swing arm 30 and lower portions of the pair of pivot frames 18, and a link. And a rear cushion 32 extending between the mechanism 31 and the cross member 22.
　スイングアーム３０は、車体後部の下方に設けられている。スイングアーム３０は、前後に延びている。スイングアーム３０の前端部は、左右に分岐した二股状に形成され、一対のピボットフレーム１８の上下中間部に、ピボット軸３３を介して上下揺動可能に支持される。 The swing arm 30 is provided below the rear part of the vehicle body. The swing arm 30 extends back and forth. The front end of the swing arm 30 is formed in a bifurcated shape branched right and left, and is supported by a vertically intermediate portion of the pair of pivot frames 18 via a pivot shaft 33 so as to be vertically swingable.
　リンク機構３１は、リンクアーム３４と、リンク部材３５と、を有する。リンクアーム３４は、側面視でスイングアーム３０の下方に設けられている。リンクアーム３４は、前後に延びている。リンクアーム３４の前端部は、ロアクロスメンバ２３のリンク支持ブラケット２３ａに回動可能に連結されている。リンク部材３５は、側面視三角形状に形成されている。リンク部材３５の上部は、スイングアーム３０の前後中間部に回動可能に連結されている。リンク部材３５の後下部は、リンクアーム３４の後端部に回動可能に連結されている。リンク部材３５の前部には、リアクッション３２が連結されている。 The link mechanism 31 includes a link arm 34 and a link member 35. The link arm 34 is provided below the swing arm 30 in a side view. The link arm 34 extends back and forth. The front end of the link arm 34 is rotatably connected to the link support bracket 23a of the lower cross member 23. The link member 35 is formed in a triangular shape in a side view. The upper part of the link member 35 is rotatably connected to the front and rear middle part of the swing arm 30. A lower rear portion of the link member 35 is rotatably connected to a rear end of the link arm 34. A rear cushion 32 is connected to a front portion of the link member 35.
　リアクッション３２は、車体後部の車幅中央に設けられている。リアクッション３２は、円筒状に形成され、前傾した軸方向（長手方向）に沿って上下に延びている。リアクッション３２の上端部は、クロスメンバ２２のクッション支持ブラケット２２ａに回動可能に連結されている。リアクッション３２の下端部は、リンク部材３５の前部に回動可能に連結されている。 The rear cushion 32 is provided at the center of the vehicle width at the rear of the vehicle body. The rear cushion 32 is formed in a cylindrical shape, and extends vertically along an axial direction (longitudinal direction) inclined forward. The upper end of the rear cushion 32 is rotatably connected to the cushion support bracket 22 a of the cross member 22. A lower end of the rear cushion 32 is rotatably connected to a front part of the link member 35.
　パワーユニット７は、車両駆動用のモータ４０と、モータ４０の電源であるバッテリユニット５０と、モータ４０を制御するＰＣＵ（パワーコントロールユニット）７０と、を備える。モータ４０、バッテリユニット５０およびＰＣＵ７０は、互いに固定されて一体化している。パワーユニット７は、車体フレーム５に固定的に支持されている。パワーユニット７は、側面視でダウンフレーム１９の後方であって、ロアフレーム２０の上方に配置されている。また、パワーユニット７は、一対のメインフレーム１７、および一対のピボットフレーム１８によって、車幅方向外側から挟まれるように配置されている。パワーユニット７の下部は、ロアフレーム２０に取り付けられたアンダーカバー２７により覆われている。 The power unit 7 includes a motor 40 for driving the vehicle, a battery unit 50 that is a power source for the motor 40, and a PCU (power control unit) 70 that controls the motor 40. The motor 40, the battery unit 50, and the PCU 70 are fixed to each other and integrated. The power unit 7 is fixedly supported by the body frame 5. The power unit 7 is disposed behind the down frame 19 and above the lower frame 20 in a side view. The power unit 7 is disposed so as to be sandwiched between the pair of main frames 17 and the pair of pivot frames 18 from the outside in the vehicle width direction. The lower portion of the power unit 7 is covered by an under cover 27 attached to the lower frame 20.
　図２は、実施形態のパワーユニットの左側面図である。
　図２に示すように、モータ４０は、パワーユニット７の後部に配置されている。モータ４０は、図示しないステータおよびロータと、ステータおよびロータを収容するモータケース４１と、を備える。例えば、モータ４０は、後輪３に対して、車体後部の左方に配設されたチェーン式の伝動機構を介して連結されている（図１参照）。 FIG. 2 is a left side view of the power unit according to the embodiment.
As shown in FIG. 2, the motor 40 is disposed at the rear of the power unit 7. The motor 40 includes a stator and a rotor (not shown), and a motor case 41 that houses the stator and the rotor. For example, the motor 40 is connected to the rear wheel 3 via a chain-type transmission mechanism disposed on the left side of the rear of the vehicle body (see FIG. 1).
　バッテリユニット５０は、パワーユニット７の前部および上部に配置されている。バッテリユニット５０は、モータ４０の前方および上方に配置されている。バッテリユニット５０は、バッテリ本体（不図示）と、バッテリ本体を収容する中空のバッテリケース５１と、を備える。 The battery unit 50 is disposed at the front and upper part of the power unit 7. The battery unit 50 is arranged in front of and above the motor 40. The battery unit 50 includes a battery main body (not shown) and a hollow battery case 51 that houses the battery main body.
　バッテリケース５１は、例えばアルミニウムやアルミニウム合金等の金属材料により形成されている。バッテリケース５１は、下側バッテリケース５２と上側バッテリケース５６とを備える。下側バッテリケース５２および上側バッテリケース５６のそれぞれは、バッテリを収容する。下側バッテリケース５２および上側バッテリケース５６は、互いに締結されている。 The battery case 51 is formed of a metal material such as aluminum or an aluminum alloy. The battery case 51 includes a lower battery case 52 and an upper battery case 56. Each of the lower battery case 52 and the upper battery case 56 accommodates a battery. The lower battery case 52 and the upper battery case 56 are fastened to each other.
　図３は、実施形態のパワーユニットの正面図である。
　図２および図３に示すように、下側バッテリケース５２は、モータ４０の前方に位置している。下側バッテリケース５２は、上下方向、前後方向および車幅方向に延びる直方体状に形成されている。下側バッテリケース５２は、前後方向から見て車幅中心ＣＬに重なるように配置されている。車幅中心ＣＬは、前後方向から見てヘッドパイプ１６の中心軸線に重なる仮想線である。下側バッテリケース５２は、車幅方向においてモータ４０と略同等の大きさに形成されている。下側バッテリケース５２は、モータ４０よりも上方に突出している。下側バッテリケース５２には、下方から見て一対のロアフレーム２０が重なっている（図７参照）。 FIG. 3 is a front view of the power unit according to the embodiment.
As shown in FIGS. 2 and 3, the lower battery case 52 is located in front of the motor 40. The lower battery case 52 is formed in a rectangular parallelepiped shape extending in the up-down direction, the front-rear direction, and the vehicle width direction. The lower battery case 52 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction. The vehicle width center CL is an imaginary line that overlaps with the center axis of the head pipe 16 when viewed from the front-back direction. The lower battery case 52 is formed to have substantially the same size as the motor 40 in the vehicle width direction. The lower battery case 52 protrudes above the motor 40. A pair of lower frames 20 overlap with the lower battery case 52 when viewed from below (see FIG. 7).
　図２に示すように、下側バッテリケース５２は、略水平に延びる仮想平面に沿って上下に分割可能に形成され、下部がケース本体５３を構成するとともに、上部が蓋体５４を構成している。ケース本体５３および蓋体５４は、それぞれの開口縁同士を締結する複数の締結具によって互いに固定されている。下側バッテリケース５２は、下部においてモータケース４１に固定されている。 As shown in FIG. 2, the lower battery case 52 is formed so as to be able to be vertically divided along an imaginary plane extending substantially horizontally, and a lower part constitutes a case body 53 and an upper part constitutes a lid 54. I have. The case main body 53 and the lid body 54 are fixed to each other by a plurality of fasteners for fastening the respective opening edges. The lower battery case 52 is fixed to the motor case 41 at the lower part.
　図２および図３に示すように、上側バッテリケース５６は、モータ４０および下側バッテリケース５２の上方に位置している。上側バッテリケース５６は、下側バッテリケース５２よりも前後方向に大きく形成されている。上側バッテリケース５６は、前後方向から見て車幅中心ＣＬに重なるように配置されている。上側バッテリケース５６は、前後方向から見て略一定の幅で上下方向に延在している。上側バッテリケース５６は、車幅方向において下側バッテリケース５２よりも小さく形成されている。これにより、下側バッテリケース５２は、上側バッテリケース５６よりも車幅方向の両側に突出している。 お よ び As shown in FIGS. 2 and 3, the upper battery case 56 is located above the motor 40 and the lower battery case 52. The upper battery case 56 is formed larger in the front-rear direction than the lower battery case 52. The upper battery case 56 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction. The upper battery case 56 extends vertically with a substantially constant width when viewed from the front-back direction. The upper battery case 56 is formed smaller than the lower battery case 52 in the vehicle width direction. Thereby, the lower battery case 52 protrudes to both sides in the vehicle width direction from the upper battery case 56.
　図４は、実施形態のパワーユニットおよび車体フレームの平面図である。
　図４に示すように、上側バッテリケース５６は、一対のメインフレーム１７の間に配置されている。上側バッテリケース５６は、一対のガセット２１（図１参照）の間に配置されている。上側バッテリケース５６は、一対のメインフレーム１７の間隔に対応して、前部が前部以外の部分よりも車幅方向に幅狭になるように形成されている。 FIG. 4 is a plan view of the power unit and the body frame of the embodiment.
As shown in FIG. 4, the upper battery case 56 is arranged between the pair of main frames 17. The upper battery case 56 is disposed between the pair of gussets 21 (see FIG. 1). The upper battery case 56 is formed so that the front portion is narrower in the vehicle width direction than the portion other than the front portion, corresponding to the interval between the pair of main frames 17.
　図２に示すように、上側バッテリケース５６の下面は、モータ４０および下側バッテリケース５２の外面に沿うように段差状に形成されている。上側バッテリケース５６の下面は、下側バッテリケース５２の蓋体５４の上面および後面に密着している。上側バッテリケース５６の後面は、クロスメンバ２２（図１参照）を避けるように形成されている。上側バッテリケース５６の後面は、下部が上部に対して前方に位置するように段差状に形成されている。上側バッテリケース５６の前面の上部には、前方に向けて膨出する膨出部５７が形成されている。上側バッテリケース５６の前面の下部は、下側バッテリケース５２の前面と同一平面に沿って延びている。上側バッテリケース５６の上面は、前方から後方に向かって略水平に延びた後、下方に傾斜して延びている。 下面 As shown in FIG. 2, the lower surface of the upper battery case 56 is formed in a step shape along the outer surfaces of the motor 40 and the lower battery case 52. The lower surface of the upper battery case 56 is in close contact with the upper surface and the rear surface of the lid 54 of the lower battery case 52. The rear surface of the upper battery case 56 is formed so as to avoid the cross member 22 (see FIG. 1). The rear surface of the upper battery case 56 is formed in a step shape so that the lower part is located forward with respect to the upper part. A bulging portion 57 bulging forward is formed at an upper portion of the front surface of the upper battery case 56. The lower part of the front surface of the upper battery case 56 extends along the same plane as the front surface of the lower battery case 52. The upper surface of the upper battery case 56 extends substantially horizontally from the front to the rear, and then extends obliquely downward.
　上側バッテリケース５６は、上前端部から後方かつ下方に延びる仮想平面に沿って上下に分割可能に形成され、下部がケース本体５８を構成するとともに、上部が蓋体５９を構成している。蓋体５９の全体は、一対のメインフレーム１７（図１参照）よりも上方に配置されている。ケース本体５８および蓋体５９は、それぞれの開口縁同士を締結する複数の締結具によって互いに固定されている。上側バッテリケース５６は、下部においてモータケース４１に固定されている。 The upper battery case 56 is formed so as to be vertically splittable along an imaginary plane extending rearward and downward from the upper front end, and the lower part constitutes the case main body 58 and the upper part constitutes the lid 59. The entire lid 59 is disposed above the pair of main frames 17 (see FIG. 1). The case main body 58 and the lid body 59 are fixed to each other by a plurality of fasteners for fastening the respective opening edges. The upper battery case 56 is fixed to the motor case 41 at the lower part.
　パワーユニット７は、車体フレーム５に締結される複数の締結部を備える。複数の締結部は、バッテリユニット５０が備える複数のバッテリユニット締結部６１と、モータ４０が備える複数のモータ締結部４３と、を備える。 The power unit 7 includes a plurality of fastening portions that are fastened to the body frame 5. The plurality of fastening portions include a plurality of battery unit fastening portions 61 included in the battery unit 50 and a plurality of motor fastening portions 43 included in the motor 40.
　複数のバッテリユニット締結部６１は、バッテリユニット５０における前方に向く前面５０ａに設けられた前面締結部６２と、バッテリユニット５０における下方に向く下面に設けられた下面締結部６３（第２締結部）と、を備える。 The plurality of battery unit fastening portions 61 include a front fastening portion 62 provided on a front surface 50a facing forward in the battery unit 50 and a lower surface fastening portion 63 (second fastening portion) provided on a lower facing lower surface of the battery unit 50. And.
　前面締結部６２は、下側バッテリケース５２の前面に設けられた前面下締結部６５（第２締結部）と、上側バッテリケース５６の前面に設けられた前面上締結部６６（第１締結部）と、を備える。 The front fastening portion 62 includes a front lower fastening portion 65 (second fastening portion) provided on the front surface of the lower battery case 52 and a front upper fastening portion 66 (first fastening portion) provided on the front surface of the upper battery case 56. ).
　前面下締結部６５は、モータ４０と同じ高さの位置に設けられている。例えば、前面下締結部６５は、下側バッテリケース５２と同一部材で一体的に形成されている。前面下締結部６５は、下側バッテリケース５２の前面から前方に突出している。前面下締結部６５は、後方から前方に向かうに従い上下方向の幅が漸次狭まるように突出している。図３に示すように、前面下締結部６５は、車幅方向に延在している。前面下締結部６５は、前後方向から見て車幅中心ＣＬに重なるように配置されている。 The front lower fastening portion 65 is provided at a position at the same height as the motor 40. For example, the front lower fastening portion 65 is integrally formed of the same member as the lower battery case 52. The front lower fastening portion 65 protrudes forward from the front surface of the lower battery case 52. The front lower fastening portion 65 protrudes such that the width in the vertical direction gradually decreases from the rear to the front. As shown in FIG. 3, the front lower fastening portion 65 extends in the vehicle width direction. The front lower fastening portion 65 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction.
　図５は、実施形態の前面下締結部近傍の構造を示す斜視図である。
　図５に示すように、前面下締結部６５は、左右一対の第１マウントブラケット８２を介してダウンフレーム１９に支持されている。第１マウントブラケット８２は、金属板により形成されている。一対の第１マウントブラケット８２は、前面下締結部６５を車幅方向外側から挟むように配置され、ボルト８１によって前面下締結部６５に締結されている。例えば、ボルト８１は、ナットと組み合わせて一対の第１マウントブラケット８２および前面下締結部６５を挟むように設けられている。これにより、ボルト８１による締結力を、車幅中心ＣＬに交差するように前面下締結部６５に作用させることができる。さらに、一対の第１マウントブラケット８２は、上下一対のボルト８３によって、ダウンフレーム１９の下端部に締結されている。これにより、前面下締結部６５は、一対の第１マウントブラケット８２を介して、ダウンフレーム１９に間接的に締結されている。 FIG. 5 is a perspective view showing the structure near the lower front fastening portion of the embodiment.
As shown in FIG. 5, the lower front fastening portion 65 is supported by the down frame 19 via a pair of left and right first mount brackets 82. The first mount bracket 82 is formed of a metal plate. The pair of first mount brackets 82 are arranged so as to sandwich the front lower fastening portion 65 from the outside in the vehicle width direction, and are fastened to the front lower fastening portion 65 by bolts 81. For example, the bolt 81 is provided so as to sandwich the pair of first mount brackets 82 and the front lower fastening portion 65 in combination with a nut. Thus, the fastening force of the bolt 81 can be applied to the front lower fastening portion 65 so as to intersect the vehicle width center CL. Further, the pair of first mount brackets 82 are fastened to the lower end of the down frame 19 by a pair of upper and lower bolts 83. Thus, the front lower fastening portion 65 is indirectly fastened to the down frame 19 via the pair of first mount brackets 82.
　図２に示すように、前面上締結部６６は、モータ４０よりも上方かつ前方に設けられている。前面上締結部６６は、バッテリユニット５０を上下方向で均等に三分割した場合の最上部の領域に配置されている。前面上締結部６６は、車幅方向から見た側面視で、メインフレーム１７とダウンフレーム１９とガセット２１とに囲まれている（図１参照）。例えば、前面上締結部６６は、上側バッテリケース５６と同一部材で一体的に形成されている。前面上締結部６６は、上側バッテリケース５６の前面から前方に突出している。前面上締結部６６は、上側バッテリケース５６の前面のうち膨出部５７から膨出部５７よりも下方にわたる領域から突出している。図３に示すように、前面上締結部６６は、車幅方向に延在している。前面上締結部６６は、前後方向から見て車幅中心ＣＬに重なるように配置されている。前面上締結部６６は、前面下締結部６５よりも車幅方向において小さく形成されている。 前面 As shown in FIG. 2, the front upper fastening portion 66 is provided above and forward of the motor 40. The front upper fastening portion 66 is arranged in the uppermost region when the battery unit 50 is equally divided into three in the vertical direction. The front upper fastening portion 66 is surrounded by the main frame 17, the down frame 19, and the gusset 21 when viewed from the side in the vehicle width direction (see FIG. 1). For example, the front upper fastening portion 66 is integrally formed of the same member as the upper battery case 56. The front upper fastening portion 66 protrudes forward from the front surface of the upper battery case 56. The front upper fastening portion 66 protrudes from a region of the front surface of the upper battery case 56 extending from the bulging portion 57 to below the bulging portion 57. As shown in FIG. 3, the front upper fastening portion 66 extends in the vehicle width direction. The front upper fastening portion 66 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction. The front upper fastening portion 66 is formed smaller in the vehicle width direction than the front lower fastening portion 65.
　図６は、実施形態の前面上締結部近傍の構造を示す斜視図である。
　図６に示すように、前面上締結部６６は、左右一対の第２マウントブラケット８６を介してダウンフレーム１９に支持されている。第２マウントブラケット８６は、金属板により形成されている。一対の第２マウントブラケット８６は、前面上締結部６６を車幅方向外側から挟むように配置され、ボルト８５によって前面上締結部６６に締結されている。例えば、ボルト８５は、ナットと組み合わせて一対の第２マウントブラケット８６および前面上締結部６６を挟むように設けられている。これにより、ボルト８５による締結力を、車幅中心ＣＬに交差するように前面上締結部６６に作用させることができる。さらに、一対の第２マウントブラケット８６は、ダウンフレーム１９とガセット２１との結合部よりも上方において、上下一対のボルト８７によって、ダウンフレーム１９に締結されている。これにより、前面上締結部６６は、一対の第２マウントブラケット８６を介して、ダウンフレーム１９に間接的に締結されている。 FIG. 6 is a perspective view showing the structure near the fastening portion on the front surface of the embodiment.
As shown in FIG. 6, the front upper fastening portion 66 is supported by the down frame 19 via a pair of left and right second mount brackets 86. The second mount bracket 86 is formed of a metal plate. The pair of second mount brackets 86 are arranged so as to sandwich the front upper fastening portion 66 from the outside in the vehicle width direction, and are fastened to the front upper fastening portion 66 by bolts 85. For example, the bolt 85 is provided so as to sandwich the pair of second mount brackets 86 and the upper front fastening portion 66 in combination with a nut. Thereby, the fastening force by the bolt 85 can be applied to the front upper fastening portion 66 so as to cross the vehicle width center CL. Further, the pair of second mount brackets 86 are fastened to the down frame 19 by a pair of upper and lower bolts 87 above the joint between the down frame 19 and the gusset 21. Thus, the front upper fastening portion 66 is indirectly fastened to the down frame 19 via the pair of second mount brackets 86.
　図２に示すように、下面締結部６３は、モータ４０よりも下方かつ前方に設けられている。例えば、下面締結部６３は、下側バッテリケース５２と同一部材で一体的に形成されている。下面締結部６３は、下側バッテリケース５２の下面から下方に突出している。下面締結部６３は、上方から下方に向かうに従い前後方向の幅が漸次狭まるように突出している。図３に示すように、下面締結部６３は、車幅方向に延在している。下面締結部６３は、前後方向から見て車幅中心ＣＬに重なるように配置されている。下面締結部６３は、車幅方向において前面上締結部６６よりも大きく形成されている。本実施形態では、下面締結部６３は、車幅方向において前面下締結部６５と同じ大きさに形成されている。 下面 As shown in FIG. 2, the lower surface fastening portion 63 is provided below and forward of the motor 40. For example, the lower surface fastening portion 63 is integrally formed of the same member as the lower battery case 52. The lower surface fastening portion 63 protrudes downward from the lower surface of the lower battery case 52. The lower surface fastening portion 63 protrudes so that the width in the front-rear direction gradually decreases from the upper side to the lower side. As shown in FIG. 3, the lower surface fastening portion 63 extends in the vehicle width direction. The lower surface fastening portion 63 is disposed so as to overlap the vehicle width center CL when viewed from the front-back direction. The lower surface fastening portion 63 is formed larger than the front upper fastening portion 66 in the vehicle width direction. In the present embodiment, the lower surface fastening portion 63 is formed in the same size as the front lower fastening portion 65 in the vehicle width direction.
　図７は、実施形態の下面締結部近傍の構造を示す斜視図である。
　図７に示すように、下面締結部６３は、一対のロアフレーム２０に支持されている。下面締結部６３は、一対のロアフレーム２０から延出する一対の延出部２０ａによって、車幅方向外側から挟まれている。下面締結部６３は、ボルト８９によって一対の延出部２０ａに締結されている。これにより、下面締結部６３は、ロアフレーム２０に直接締結されている。例えば、ボルト８９は、ナットと組み合わせて一対の延出部２０ａおよび下面締結部６３を挟むように設けられている。これにより、ボルト８９による締結力を、車幅中心ＣＬに交差するように下面締結部６３に作用させることができる。 FIG. 7 is a perspective view showing the structure near the lower surface fastening portion of the embodiment.
As shown in FIG. 7, the lower surface fastening portion 63 is supported by the pair of lower frames 20. The lower surface fastening portion 63 is sandwiched from outside in the vehicle width direction by a pair of extending portions 20 a extending from the pair of lower frames 20. The lower surface fastening portion 63 is fastened to the pair of extending portions 20 a by bolts 89. Thereby, the lower surface fastening portion 63 is directly fastened to the lower frame 20. For example, the bolt 89 is provided so as to sandwich the pair of extending portions 20a and the lower surface fastening portion 63 in combination with a nut. Thereby, the fastening force by the bolt 89 can be applied to the lower surface fastening portion 63 so as to cross the vehicle width center CL.
　図２に示すように、上述した複数のバッテリユニット締結部６１のうち、前面上締結部６６のみ、モータ４０の回転中心Ｏよりも上方に設けられている。モータ４０の回転中心Ｏは、ロータの回転中心である。さらに、前面上締結部６６は、パワーユニット７の重心よりも上方に設けられている。前面上締結部６６は、複数のバッテリユニット締結部６１のうち最もモータ４０の回転中心から離間している。 As shown in FIG. 2, of the plurality of battery unit fastening portions 61 described above, only the front upper fastening portion 66 is provided above the rotation center O of the motor 40. The rotation center O of the motor 40 is the rotation center of the rotor. Further, the front upper fastening portion 66 is provided above the center of gravity of the power unit 7. The front upper fastening portion 66 is farthest from the rotation center of the motor 40 among the plurality of battery unit fastening portions 61.
　モータ締結部４３は、モータケース４１に設けられた下側締結部４４および上側締結部４５を備える。 The motor fastening portion 43 includes a lower fastening portion 44 and an upper fastening portion 45 provided on the motor case 41.
　図８は、実施形態の下側締結部周辺の構造を示す斜視図である。
　図２および図８に示すように、下側締結部４４は、モータケース４１と同一部材で一体的に形成されている。下側締結部４４は、モータケース４１の後下部から後方に突出している。下側締結部４４は、上下方向から見て車幅中心ＣＬに重なっている（図４参照）。下側締結部４４には、ピボット軸３３が挿通される貫通孔が形成されている。下側締結部４４は、スイングアーム３０の二股状の前端部に車幅方向両側から挟まれた状態で、ピボット軸３３上でピボットフレーム１８に締結されている。 FIG. 8 is a perspective view illustrating a structure around a lower fastening portion of the embodiment.
As shown in FIGS. 2 and 8, the lower fastening portion 44 is integrally formed of the same member as the motor case 41. The lower fastening portion 44 projects rearward from a lower rear portion of the motor case 41. The lower fastening portion 44 overlaps with the vehicle width center CL when viewed from above and below (see FIG. 4). The lower fastening portion 44 has a through hole through which the pivot shaft 33 is inserted. The lower fastening portion 44 is fastened to the pivot frame 18 on the pivot shaft 33 in a state of being sandwiched between the bifurcated front ends of the swing arm 30 from both sides in the vehicle width direction.
　図９は、実施形態の上側締結部周辺の構造を示す斜視図である。
　図２および図９に示すように、上側締結部４５は、モータケース４１と同一部材で一体的に形成されている。上側締結部４５は、モータケース４１の後上部から後上方に突出している。上側締結部４５は、車幅中心ＣＬ（図３参照）を避けるように車幅方向に分岐して二股状に形成されている。上側締結部４５は、左右一対の第３マウントブラケット９２を介してクロスメンバ２２に支持されている。第３マウントブラケット９２は、金属板により形成されている。一対の第３マウントブラケット９２は、上側締結部４５を車幅方向外側から挟むように配置され、ボルト９１によって上側締結部４５に締結されている。さらに、一対の第３マウントブラケット９２は、上側締結部４５よりも上方において、前後一対のボルト９３によって、クロスメンバ２２に締結されている。これにより、上側締結部４５は、一対の第３マウントブラケット９２を介して、クロスメンバ２２に間接的に締結されている。 FIG. 9 is a perspective view illustrating a structure around the upper fastening portion of the embodiment.
As shown in FIGS. 2 and 9, the upper fastening portion 45 is formed integrally with the motor case 41 using the same member. The upper fastening portion 45 protrudes rearward and upward from a rear upper portion of the motor case 41. The upper fastening portion 45 is branched in the vehicle width direction so as to avoid the vehicle width center CL (see FIG. 3) and is formed in a forked shape. The upper fastening portion 45 is supported by the cross member 22 via a pair of left and right third mount brackets 92. The third mount bracket 92 is formed of a metal plate. The pair of third mount brackets 92 are arranged so as to sandwich the upper fastening portion 45 from the outside in the vehicle width direction, and are fastened to the upper fastening portion 45 by bolts 91. Further, the pair of third mount brackets 92 is fastened to the cross member 22 by a pair of front and rear bolts 93 above the upper fastening portion 45. Thereby, the upper fastening portion 45 is indirectly fastened to the cross member 22 via the pair of third mount brackets 92.
　図２に示すように、ＰＣＵ７０は、モータドライバであるＰＤＵ（Ｐｏｗｅｒ　Ｄｒｉｖｅ　Ｕｎｉｔ）や、ＰＤＵを制御するＥＣＵ（Ｅｌｅｃｔｒｉｃ　Ｃｏｎｔｒｏｌ　Ｕｎｉｔ）等を含む制御装置である。ＰＣＵ７０は、モータ４０およびバッテリユニット５０の下方に配置されている。ＰＣＵ７０には、下方から見て一対のロアフレーム２０が重なっている（図７参照）。ＰＣＵ７０は、回路基板等を収容するケーシングを備えている。ＰＣＵ７０のケーシングは、例えばモータ４０のモータケース４１と一体化している。 As shown in FIG. 2, the PCU 70 is a control device including a PDU (Power Drive Unit) that is a motor driver, an ECU (Electric Control Unit) that controls the PDU, and the like. PCU 70 is arranged below motor 40 and battery unit 50. A pair of lower frames 20 overlap the PCU 70 when viewed from below (see FIG. 7). The PCU 70 includes a casing that houses a circuit board and the like. The casing of the PCU 70 is integrated with, for example, the motor case 41 of the motor 40.
　以上に説明したように、本実施形態では、前面上締結部６６は、モータ４０よりも前方に設けられ、前後方向から見て車幅中心ＣＬに重なっている。これにより、前面上締結部６６において、バッテリユニットが前後方向から見て車幅中心ＣＬを挟んだ両側のそれぞれで車体フレームに締結される場合と比較して、車体フレーム５に対するバッテリユニット５０の車幅方向への揺れを許容できる。このため、車両のバンク時などにバッテリユニット５０、およびバッテリユニット５０に固定されたモータ４０に働く慣性が車体フレーム５に作用しにくくなる。よって、操舵性能の向上を図ることができる。
　しかも、前面上締結部６６は、モータ４０よりも上方に設けられている。これにより、前面上締結部６６には、モータ４０と同じ高さ、またはモータ４０よりも下方に設けられた締結部よりも、モータ４０の重力が小さく作用する。このため、前面上締結部６６の構成を簡素化して軽量化し、前面上締結部６６における締結構造の強度を低く設定できる。よって、車体フレーム５に対するバッテリユニット５０の車幅方向への揺れを許容しても、バッテリユニット５０と車体フレーム５との固定強度が低下することを抑制できる。
　以上により、操舵性能の向上が図られた自動二輪車１を提供できる。 As described above, in the present embodiment, the front upper fastening portion 66 is provided forward of the motor 40, and overlaps the vehicle width center CL when viewed from the front-back direction. Thus, in the upper front fastening portion 66, the battery unit 50 is not attached to the body frame 5 as compared with the case where the battery unit is fastened to the body frame on both sides of the vehicle width center CL when viewed from the front-rear direction. Swing in the width direction can be tolerated. Therefore, the inertia acting on the battery unit 50 and the motor 40 fixed to the battery unit 50 when the vehicle is banked or the like is less likely to act on the vehicle body frame 5. Therefore, the steering performance can be improved.
Moreover, the front upper fastening portion 66 is provided above the motor 40. As a result, the gravity of the motor 40 acts on the front upper fastening portion 66 more than the height of the motor 40 or the fastening portion provided below the motor 40. For this reason, the structure of the front upper fastening portion 66 can be simplified and lightened, and the strength of the fastening structure in the front upper fastening portion 66 can be set low. Therefore, even if the swing of the battery unit 50 with respect to the body frame 5 in the vehicle width direction is allowed, it is possible to suppress a decrease in the fixing strength between the battery unit 50 and the body frame 5.
As described above, the motorcycle 1 with improved steering performance can be provided.
　また、上側バッテリケース５６は前面上締結部６６を備え、下側バッテリケース５２は前面下締結部６５および下面締結部６３を備える。前面上締結部６６は、前面下締結部６５および下面締結部６３よりも車幅方向に小さく形成されている。この構成によれば、前面下締結部６５および下面締結部６３が前面上締結部６６よりも下方に設けられることで、前面下締結部６５および下面締結部６３には前面上締結部６６よりもバッテリユニット５０およびモータ４０の重力が大きく作用する。このため、前面上締結部６６を前面下締結部６５および下面締結部６３よりも車幅方向に小さく形成することで、前面下締結部６５および下面締結部６３においてバッテリユニット５０と車体フレーム５との固定強度を確保しつつ、前面上締結部６６における締結構造の強度を低く設定することが可能となる。よって、前面上締結部６６において車体フレーム５に対するバッテリユニット５０の車幅方向への揺れを許容でき、操舵性能の向上を図ることができる。 The upper battery case 56 includes a front upper fastening portion 66, and the lower battery case 52 includes a front lower fastening portion 65 and a lower fastening portion 63. The front upper fastening portion 66 is formed smaller in the vehicle width direction than the front lower fastening portion 65 and the lower fastening portion 63. According to this configuration, the front lower fastening portion 65 and the lower fastening portion 63 are provided below the front upper fastening portion 66, so that the front lower fastening portion 65 and the lower fastening portion 63 are larger than the front upper fastening portion 66. Gravity of the battery unit 50 and the motor 40 largely acts. For this reason, the front upper fastening portion 66 is formed smaller in the vehicle width direction than the front lower fastening portion 65 and the lower fastening portion 63, so that the battery unit 50 and the body frame 5 are connected to each other at the front lower fastening portion 65 and the lower fastening portion 63. It is possible to set the strength of the fastening structure at the front upper fastening portion 66 to be low while securing the fixing strength. Therefore, swinging of the battery unit 50 with respect to the vehicle body frame 5 in the vehicle width direction at the front upper fastening portion 66 can be permitted, and steering performance can be improved.
　また、上側バッテリケース５６は下側バッテリケース５２よりも車幅方向において小さく形成されている。この構成によれば、上側バッテリケースが下側バッテリケースよりも車幅方向において大きく形成されている場合と比較して、バッテリユニット５０の重心を下げることができる。このため、車両のバンク時におけるバッテリユニット５０の慣性モーメントを小さくすることができ、操舵性能の向上を図ることができる。
　また、上側バッテリケース５６は、下側バッテリケース５２よりも乗員に近い位置に配置される。このため、上側バッテリケース５６が下側バッテリケース５２よりも車幅方向に小さいことで、バッテリケース５１の上方に乗員が着座する場合に、バッテリユニット５０が乗員にとって邪魔になりにくくなる。 The upper battery case 56 is formed smaller in the vehicle width direction than the lower battery case 52. According to this configuration, the center of gravity of the battery unit 50 can be lowered as compared with the case where the upper battery case is formed larger in the vehicle width direction than the lower battery case. Therefore, the moment of inertia of the battery unit 50 when the vehicle is banked can be reduced, and steering performance can be improved.
The upper battery case 56 is disposed at a position closer to the occupant than the lower battery case 52. For this reason, since the upper battery case 56 is smaller in the vehicle width direction than the lower battery case 52, when the occupant sits above the battery case 51, the battery unit 50 is less likely to be an obstacle for the occupant.
　また、前面上締結部６６、前面下締結部６５および下面締結部６３を含む複数のバッテリユニット締結部６１は、前後方向から見て車幅中心ＣＬに重なっている。この構成によれば、バッテリユニットが前後方向から見て車幅中心ＣＬを挟んだ両側のそれぞれで車体フレームに締結された場合と比較して、複数のバッテリユニット締結部６１において車体フレーム５に対するバッテリユニット５０の車幅方向への揺れを許容できる。このため、車両のバンク時などにバッテリユニット５０、およびバッテリユニット５０に固定されたモータ４０に働く慣性がより車体フレーム５に作用しにくくなる。したがって、操舵性能をより向上させることができる。 The plurality of battery unit fastening portions 61 including the front upper fastening portion 66, the front lower fastening portion 65, and the lower surface fastening portion 63 overlap the vehicle width center CL when viewed from the front-back direction. According to this configuration, as compared with the case where the battery unit is fastened to the vehicle body frame on both sides of the vehicle width center CL when viewed from the front-rear direction, the battery unit The swing of the unit 50 in the vehicle width direction can be allowed. For this reason, inertia acting on the battery unit 50 and the motor 40 fixed to the battery unit 50 when the vehicle is banked or the like is less likely to act on the vehicle body frame 5. Therefore, the steering performance can be further improved.
　また、前面上締結部６６は、複数のバッテリユニット締結部６１のうち、モータ４０の回転中心Ｏから最も離間している。この構成によれば、モータ４０の回転中心Ｏの近傍にはモータ４０の重心が位置するので、前面上締結部６６を複数のバッテリユニット締結部６１のうち最もモータ４０の重心から離れた位置に設けることが可能となる。これにより、モータ４０からバッテリユニット５０を介して前面上締結部６６に伝わる力を小さくできるので、前面上締結部６６の構成を簡素化して軽量化し、前面上締結部６６における締結構造の強度を低く設定できる。よって、車体フレーム５に対するバッテリユニット５０の車幅方向への揺れを許容しても、バッテリユニット５０と車体フレーム５との固定強度が低下することを抑制できる。 The front upper fastening portion 66 is the most distant from the rotation center O of the motor 40 among the plurality of battery unit fastening portions 61. According to this configuration, since the center of gravity of the motor 40 is located near the rotation center O of the motor 40, the front upper fastening portion 66 is located at a position farthest from the center of gravity of the motor 40 among the plurality of battery unit fastening portions 61. It can be provided. Accordingly, the force transmitted from the motor 40 to the upper front fastening portion 66 via the battery unit 50 can be reduced, so that the configuration of the front upper fastening portion 66 is simplified and lightened, and the strength of the fastening structure in the front upper fastening portion 66 is reduced. Can be set low. Therefore, even if the swing of the battery unit 50 with respect to the body frame 5 in the vehicle width direction is allowed, it is possible to suppress a decrease in the fixing strength between the battery unit 50 and the body frame 5.
　また、前面上締結部６６は、車幅方向から見た側面視で、メインフレーム１７とダウンフレーム１９とガセット２１とに囲まれている。この構成によれば、前面上締結部６６がヘッドパイプ１６近傍に配置される。すなわち、前面上締結部６６は、側面視でガセット２１よりも下方に配置される場合と比較して、上方に配置される。これにより、前面上締結部６６における締結構造の強度を低く設定できる。よって、車体フレーム５に対するバッテリユニット５０の車幅方向への揺れを許容しても、バッテリユニット５０と車体フレーム５との固定強度が低下することを抑制できる。
　また、側面視で前面上締結部６６が車体フレーム５に重ならないので、前面上締結部６６へのアクセスが容易となる。したがって、車体フレーム５とバッテリユニット５０との組み付け性を向上させることができる。 The front upper fastening portion 66 is surrounded by the main frame 17, the down frame 19, and the gusset 21 when viewed from the side in the vehicle width direction. According to this configuration, the front upper fastening portion 66 is arranged near the head pipe 16. That is, the front upper fastening portion 66 is disposed above the gusset 21 in a side view, as compared with the case where the front upper fastening portion 66 is disposed below the gusset 21. Thereby, the strength of the fastening structure in the front upper fastening portion 66 can be set low. Therefore, even if the swing of the battery unit 50 with respect to the body frame 5 in the vehicle width direction is allowed, it is possible to suppress a decrease in the fixing strength between the battery unit 50 and the body frame 5.
Further, since the front upper fastening portion 66 does not overlap with the vehicle body frame 5 in side view, access to the front upper fastening portion 66 is facilitated. Therefore, the assemblability of the vehicle body frame 5 and the battery unit 50 can be improved.
　また、前面上締結部６６は、バッテリユニット５０を上下方向で３分割した場合の最上部の領域に配置されている。この構成によれば、前面上締結部６６がモータ４０から離れた位置に配置される。これにより、モータ４０からバッテリユニット５０を介して前面上締結部６６に伝わる力を小さくできるので、前面上締結部６６の構成を簡素化して軽量化し、前面上締結部６６における締結構造の強度を低く設定できる。よって、車体フレーム５に対するバッテリユニット５０の車幅方向への揺れを許容しても、バッテリユニット５０と車体フレーム５との固定強度が低下することを抑制できる。 前面 Front upper fastening portion 66 is arranged in the uppermost region when battery unit 50 is divided into three in the vertical direction. According to this configuration, the front upper fastening portion 66 is arranged at a position away from the motor 40. Accordingly, the force transmitted from the motor 40 to the upper front fastening portion 66 via the battery unit 50 can be reduced, so that the configuration of the front upper fastening portion 66 is simplified and lightened, and the strength of the fastening structure in the front upper fastening portion 66 is reduced. Can be set low. Therefore, even if the swing of the battery unit 50 with respect to the body frame 5 in the vehicle width direction is allowed, it is possible to suppress a decrease in the fixing strength between the battery unit 50 and the body frame 5.
　また、モータ４０は、車体フレーム５に締結される上側締結部４５および下側締結部４４を備える。上側締結部４５は、下側締結部４４よりも車幅方向において小さく形成されている。この構成によれば、上側締結部４５には下側締結部４４よりもモータ４０の重力が作用しにくいので、下側締結部４４における締結構造の強度を低く設定できる。これにより、下側締結部４４においてモータ４０と車体フレーム５との固定強度を確保しつつ、上側締結部４５において車体フレーム５に対するモータ４０の車幅方向への揺れを許容できる。このため、車両のバンク時などにモータ４０、およびモータ４０に固定されたバッテリユニット５０に働く慣性が車体フレーム５に作用しにくくなる。よって、操舵性能の向上を図ることができる。 The motor 40 includes an upper fastening portion 45 and a lower fastening portion 44 fastened to the vehicle body frame 5. The upper fastening portion 45 is formed smaller in the vehicle width direction than the lower fastening portion 44. According to this configuration, since the gravity of the motor 40 is less likely to act on the upper fastening portion 45 than on the lower fastening portion 44, the strength of the fastening structure in the lower fastening portion 44 can be set lower. This allows the upper fastening portion 45 to allow the motor 40 to swing with respect to the body frame 5 in the vehicle width direction while securing the fixing strength between the motor 40 and the body frame 5 at the lower fastening portion 44. For this reason, inertia acting on the motor 40 and the battery unit 50 fixed to the motor 40 when the vehicle is banked or the like is less likely to act on the vehicle body frame 5. Therefore, the steering performance can be improved.
　なお、本発明は、図面を参照して説明した上述の実施形態に限定されるものではなく、その技術的範囲において様々な変形例が考えられる。
　例えば、上記実施形態では、オフロード走行用の自動二輪車への適用を例に説明したが、車両の用途については何ら限定するものではない。
　例えば、前記鞍乗り型電動車両には、運転者が車体を跨いで乗車する車両全般が含まれ、自動二輪車のみならず、三輪（前一輪かつ後二輪の他に、前二輪かつ後一輪の車両も含む）の車両も含まれる。また、本発明は、自動二輪車のみならず、自動車等の四輪の車両にも適用可能である。 Note that the present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications can be considered within the technical scope.
For example, in the above-described embodiment, the application to a motorcycle for off-road traveling has been described as an example, but the application of the vehicle is not limited at all.
For example, the saddle-ride type electric vehicle includes not only a motorcycle in which a driver rides across a vehicle body but also a three-wheeled vehicle (a front two-wheeled vehicle and a front two-wheeled vehicle in addition to a front two-wheeled vehicle). Vehicles). The present invention is applicable not only to motorcycles but also to four-wheel vehicles such as automobiles.
　また、複数のバッテリユニット締結部６１の配置は、上記実施形態に限定されない。例えば、上記実施形態では、複数のバッテリユニット締結部６１のうち前面上締結部６６のみがモータ４０よりも上方かつ前方でバッテリユニット５０の前面５０ａに設けられているが、これに限定されない。すなわち、バッテリユニット５０の前面５０ａには、モータ４０よりも上方かつ前方に、複数の締結部が設けられていてもよい。この場合には、モータ４０よりも上方かつ前方においてバッテリユニット５０の前面５０ａに設けられた全ての締結部が前後方向から見て車幅中心ＣＬに重なっていることが望ましい。 The arrangement of the plurality of battery unit fastening portions 61 is not limited to the above embodiment. For example, in the above embodiment, only the front upper fastening portion 66 of the plurality of battery unit fastening portions 61 is provided on the front surface 50a of the battery unit 50 above and forward of the motor 40, but is not limited thereto. That is, a plurality of fastening portions may be provided on the front surface 50 a of the battery unit 50 above and forward of the motor 40. In this case, it is desirable that all the fastening portions provided on the front surface 50a of the battery unit 50 above and in front of the motor 40 overlap the vehicle width center CL when viewed from the front-back direction.
　また、上記実施形態では、複数のバッテリユニット締結部６１は、ダウンフレーム１９またはロアフレーム２０に締結されているが、これに限定されない。例えば、複数のバッテリユニット締結部の一部は、メインフレーム１７またはガセット２１に締結されていてもよい。 Also, in the above embodiment, the plurality of battery unit fastening portions 61 are fastened to the down frame 19 or the lower frame 20, but are not limited thereto. For example, some of the plurality of battery unit fastening portions may be fastened to the main frame 17 or the gusset 21.
　また、上記実施形態では、前面下締結部６５の締結構造について、１つのボルト８１をナットと組み合わせて使用しているが、これに限定されない。例えば、ボルト８１は、左右一対設けられ、それぞれが前面下締結部６５に螺着され、前面下締結部６５に一対の第１マウントブラケット８２を各別に締結するように使用されてもよい。前面上締結部６６におけるボルト８５、および下面締結部６３におけるボルト８９についても同様である。 In the above-described embodiment, one bolt 81 is used in combination with a nut for the fastening structure of the lower front fastening portion 65, but the invention is not limited to this. For example, a pair of bolts 81 may be provided on the left and right sides, each of which is screwed to the front lower fastening portion 65, and used to fasten the pair of first mount brackets 82 to the front lower fastening portion 65 separately. The same applies to the bolt 85 in the front upper fastening portion 66 and the bolt 89 in the lower fastening portion 63.
　その他、本発明の趣旨を逸脱しない範囲で、上記した実施の形態における構成要素を周知の構成要素に置き換えることは適宜可能である。 Otherwise, it is possible to appropriately replace the components in the above-described embodiment with known components without departing from the spirit of the present invention.
　１　自動二輪車（鞍乗り型電動車両）
　２　前輪
　５　車体フレーム
　１６　ヘッドパイプ
　１７　メインフレーム
　１９　ダウンフレーム
　２１　ガセット（クロス部材）
　４０　モータ
　４４　下側締結部
　４５　上側締結部
　５０　バッテリユニット
　５０ａ　前面
　５２　下側バッテリケース
　５６　上側バッテリケース
　６１　バッテリユニット締結部（締結部）
　６３　下面締結部（第２締結部）
　６５　前面下締結部（第２締結部）
　６６　前面上締結部（第１締結部）
　ＣＬ　車幅中心
　Ｏ　回転中心 1 motorcycles (saddle-riding electric vehicles)
2 Front wheel 5 Body frame 16 Head pipe 17 Main frame 19 Down frame 21 Gusset (cross member)
Reference Signs List 40 Motor 44 Lower fastening part 45 Upper fastening part 50 Battery unit 50a Front surface 52 Lower battery case 56 Upper battery case 61 Battery unit fastening part (fastening part)
63 Lower surface fastening part (second fastening part)
65 Front lower fastening part (second fastening part)
66 Front fastening part (first fastening part)
CL Center of vehicle width O Center of rotation

Claims (8)

  1. 　車両駆動用のモータ（４０）と、
    　前記モータ（４０）の電源であって、前記モータ（４０）の前方および上方に配置され、前記モータ（４０）に固定されたバッテリユニット（５０）と、
    　前記モータ（４０）および前記バッテリユニット（５０）を支持する車体フレーム（５）と、
    　を備え、
    　前記バッテリユニット（５０）は、車両前方を向く前面（５０ａ）に、前記車体フレーム（５）に締結される第１締結部（６６）を備え、
    　前記第１締結部（６６）は、前記モータ（４０）よりも上方かつ前方に設けられ、車両前後方向から見て車幅中心（ＣＬ）に重なっている、
    　鞍乗り型電動車両。     A motor (40) for driving a vehicle;
    A battery unit (50), which is a power supply for the motor (40), is disposed in front of and above the motor (40), and is fixed to the motor (40);
    A body frame (5) supporting the motor (40) and the battery unit (50);
    With
    The battery unit (50) includes a first fastening portion (66) fastened to the vehicle body frame (5) on a front surface (50a) facing the front of the vehicle,
    The first fastening portion (66) is provided above and forward of the motor (40), and overlaps a vehicle width center (CL) when viewed from the vehicle front-rear direction.
    Saddle-riding electric vehicle.
  2. 　前記バッテリユニット（５０）は、
    　　前記モータ（４０）の前方に位置する下側バッテリケース（５２）と、
    　　前記モータ（４０）および前記下側バッテリケース（５２）の上方に位置する上側バッテリケース（５６）と、
    　を備え、
    　前記上側バッテリケース（５６）は、前記第１締結部（６６）を備え、
    　前記下側バッテリケース（５２）は、前記車体フレーム（５）に締結される少なくとも１つの第２締結部（６３，６５）を備え、
    　前記第１締結部（６６）は、前記少なくとも１つの第２締結部（６３，６５）よりも車幅方向において小さく形成されている、
    　請求項１に記載の鞍乗り型電動車両。     The battery unit (50) includes:
    A lower battery case (52) located in front of the motor (40);
    An upper battery case (56) located above the motor (40) and the lower battery case (52);
    With
    The upper battery case (56) includes the first fastening portion (66),
    The lower battery case (52) includes at least one second fastening portion (63, 65) fastened to the vehicle body frame (5),
    The first fastening portion (66) is formed smaller in the vehicle width direction than the at least one second fastening portion (63, 65).
    The saddle-ride type electric vehicle according to claim 1.
  3. 　前記バッテリユニット（５０）は、
    　　前記モータ（４０）の前方に位置する下側バッテリケース（５２）と、
    　　前記モータ（４０）および前記下側バッテリケース（５２）の上方に位置する上側バッテリケース（５６）と、
    　を備え、
    　前記上側バッテリケース（５６）は、前記下側バッテリケース（５２）よりも車幅方向において小さく形成されている、
    　請求項１または請求項２に記載の鞍乗り型電動車両。     The battery unit (50) includes:
    A lower battery case (52) located in front of the motor (40);
    An upper battery case (56) located above the motor (40) and the lower battery case (52);
    With
    The upper battery case (56) is formed smaller in the vehicle width direction than the lower battery case (52).
    The saddle-ride type electric vehicle according to claim 1 or 2.
  4. 　前記バッテリユニット（５０）は、前記車体フレーム（５）に締結される、前記第１締結部（６６）を含む複数の締結部（６１）を備え、
    　前記複数の締結部（６１）は、車両前後方向から見て車幅中心（ＣＬ）に重なっている、
    　請求項１から請求項３のいずれか１項に記載の鞍乗り型電動車両。     The battery unit (50) includes a plurality of fastening portions (61) including the first fastening portion (66), which are fastened to the vehicle body frame (5).
    The plurality of fastening portions (61) overlap the vehicle width center (CL) when viewed from the vehicle front-rear direction.
    The saddle-ride type electric vehicle according to any one of claims 1 to 3.
  5. 　前記バッテリユニット（５０）は、前記車体フレーム（５）に締結される、前記第１締結部（６６）を含む複数の締結部（６１）を備え、
    　前記第１締結部（６６）は、前記複数の締結部（６１）のうち、前記モータ（４０）の回転中心（Ｏ）から最も離間している、
    　請求項１から請求項４のいずれか１項に記載の鞍乗り型電動車両。     The battery unit (50) includes a plurality of fastening portions (61) including the first fastening portion (66), which are fastened to the vehicle body frame (5).
    The first fastening portion (66) is the most distant from the rotation center (O) of the motor (40) among the plurality of fastening portions (61).
    The saddle-ride type electric vehicle according to any one of claims 1 to 4.
  6. 　前記車体フレーム（５）は、
    　　前輪（２）を操向可能に支持するヘッドパイプ（１６）と、
    　　前記ヘッドパイプ（１６）から後方に延びる左右一対のメインフレーム（１７）と、
    　　前記ヘッドパイプ（１６）から下方に延びるダウンフレーム（１９）と、
    　　前記モータ（４０）よりも上方において前記一対のメインフレーム（１７）と前記ダウンフレーム（１９）とを連結するクロス部材（２１）と、
    　を備え、
    　前記第１締結部（６６）は、車幅方向から見た側面視で、前記メインフレーム（１７）と前記ダウンフレーム（１９）と前記クロス部材（２１）とに囲まれている、
    　請求項１から請求項５のいずれか１項に記載の鞍乗り型電動車両。     The body frame (5)
    A head pipe (16) for steerably supporting the front wheel (2);
    A pair of left and right main frames (17) extending rearward from the head pipe (16);
    A down frame (19) extending downward from the head pipe (16);
    A cross member (21) for connecting the pair of main frames (17) and the down frame (19) above the motor (40);
    With
    The first fastening portion (66) is surrounded by the main frame (17), the down frame (19), and the cross member (21) when viewed from the side in the vehicle width direction.
    The saddle-ride type electric vehicle according to any one of claims 1 to 5.
  7. 　前記第１締結部（６６）は、前記バッテリユニット（５０）を車両の高さ方向で３分割した場合の最上部の領域に配置されている、
    　請求項１から請求項６のいずれか１項に記載の鞍乗り型電動車両。     The first fastening portion (66) is arranged in an uppermost region when the battery unit (50) is divided into three in the height direction of the vehicle.
    The saddle-ride type electric vehicle according to any one of claims 1 to 6.
  8. 　前記モータ（４０）は、前記車体フレーム（５）に締結される上側締結部（４５）および下側締結部（４４）を備え、
    　前記上側締結部（４５）は、前記下側締結部（４４）よりも車幅方向において小さく形成されている、
    　請求項１から請求項７のいずれか１項に記載の鞍乗り型電動車両。     The motor (40) includes an upper fastening portion (45) and a lower fastening portion (44) fastened to the vehicle body frame (5),
    The upper fastening portion (45) is formed smaller in the vehicle width direction than the lower fastening portion (44).
    The saddle-ride type electric vehicle according to any one of claims 1 to 7.
PCT/JP2019/028587 2018-09-27 2019-07-22 Saddled electric vehicle WO2020066239A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980062133.2A CN112770964B (en) 2018-09-27 2019-07-22 Saddle-ride type electric vehicle
JP2020548042A JP7055216B2 (en) 2018-09-27 2019-07-22 Saddle-type electric vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-181660 2018-09-27
JP2018181660 2018-09-27

Publications (1)

Publication Number Publication Date
WO2020066239A1 true WO2020066239A1 (en) 2020-04-02

Family

ID=69949884

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/028587 WO2020066239A1 (en) 2018-09-27 2019-07-22 Saddled electric vehicle

Country Status (3)

Country Link
JP (1) JP7055216B2 (en)
CN (1) CN112770964B (en)
WO (1) WO2020066239A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012096594A (en) * 2010-10-29 2012-05-24 Honda Motor Co Ltd Motorcycle
JP2012158292A (en) * 2011-02-02 2012-08-23 Honda Motor Co Ltd Sports type, saddle type electric vehicle
JP2016203953A (en) * 2015-04-28 2016-12-08 ヤマハ発動機株式会社 Electric vehicle
JP2017081486A (en) * 2015-10-30 2017-05-18 スズキ株式会社 Electric motorcycle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013098891A1 (en) * 2011-12-28 2013-07-04 川崎重工業株式会社 Electric straddled vehicle
JP5916463B2 (en) * 2012-03-26 2016-05-11 本田技研工業株式会社 Electric vehicle
JP5898778B2 (en) * 2012-10-03 2016-04-06 川崎重工業株式会社 Electric vehicle assembly method and assembly management method
EP2939912B1 (en) * 2012-12-25 2018-07-25 Kawasaki Jukogyo Kabushiki Kaisha Electric vehicle
JP6671219B2 (en) * 2016-03-31 2020-03-25 本田技研工業株式会社 Saddle-type electric vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012096594A (en) * 2010-10-29 2012-05-24 Honda Motor Co Ltd Motorcycle
JP2012158292A (en) * 2011-02-02 2012-08-23 Honda Motor Co Ltd Sports type, saddle type electric vehicle
JP2016203953A (en) * 2015-04-28 2016-12-08 ヤマハ発動機株式会社 Electric vehicle
JP2017081486A (en) * 2015-10-30 2017-05-18 スズキ株式会社 Electric motorcycle

Also Published As

Publication number Publication date
CN112770964B (en) 2022-07-26
JPWO2020066239A1 (en) 2021-08-30
JP7055216B2 (en) 2022-04-15
CN112770964A (en) 2021-05-07

Similar Documents

Publication Publication Date Title
JP6190478B2 (en) Electrical equipment arrangement structure for saddle-ride type vehicles
EP3366559B1 (en) Vehicle body frame structure for saddle riding vehicle
JP4684682B2 (en) Saddle riding type rough terrain vehicle
JP5715536B2 (en) Saddle riding
US20220119069A1 (en) Leaning vehicle
JPWO2019186947A1 (en) Saddle-type electric vehicle
JP2003127960A (en) Front fork structure in saddle-riding type vehicle
WO2013180199A1 (en) Storage structure for saddled vehicle
JP2002205679A (en) Body frame structure for motorcycle
JP5325634B2 (en) Saddle riding
JP7149161B2 (en) saddle type electric vehicle
WO2020066239A1 (en) Saddled electric vehicle
JP7118039B2 (en) Straddle-type electric tricycle
JP6773428B2 (en) Saddle-type vehicle
CN111902339A (en) Saddle-ride type electric vehicle
JP7177800B2 (en) Step mounting structure
JP6979435B2 (en) Saddle-mounted electric tricycle
CN112399945B (en) Frame structure of straddle type electric vehicle
JP2019131146A (en) Saddle-riding type electric vehicle
JP7391921B2 (en) Body frame structure of saddle type vehicle
WO2022209661A1 (en) Saddled vehicle
JP7317065B2 (en) vehicle
JP7293274B2 (en) straddle-type vehicle
JP7123086B2 (en) Straddle-type electric tricycle
JP7354041B2 (en) cushion support structure

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19867462

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020548042

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19867462

Country of ref document: EP

Kind code of ref document: A1