WO2019207713A1 - Véhicule électrique - Google Patents

Véhicule électrique Download PDF

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Publication number
WO2019207713A1
WO2019207713A1 PCT/JP2018/016997 JP2018016997W WO2019207713A1 WO 2019207713 A1 WO2019207713 A1 WO 2019207713A1 JP 2018016997 W JP2018016997 W JP 2018016997W WO 2019207713 A1 WO2019207713 A1 WO 2019207713A1
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WO
WIPO (PCT)
Prior art keywords
battery
motor
vehicle body
electric vehicle
disposed
Prior art date
Application number
PCT/JP2018/016997
Other languages
English (en)
Japanese (ja)
Inventor
孝文 中西
哲 ▲瀬▼尾
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 PCT/JP2018/016997 priority Critical patent/WO2019207713A1/fr
Priority to CN201880092388.9A priority patent/CN111971226A/zh
Priority to JP2020515389A priority patent/JP6972321B2/ja
Publication of WO2019207713A1 publication Critical patent/WO2019207713A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/027—Motorcycles with three wheels

Definitions

  • the present invention relates to an electric vehicle.
  • Patent Document 1 discloses an electric vehicle in which a front vehicle body can swing with respect to a rear vehicle body in a roll direction (a rotation direction about an axis facing the vehicle front-rear direction).
  • This electric vehicle is supported by a fixed bracket supported by a pivot provided between left and right body frames so as to be swingable up and down, and supported by the fixed bracket so as to be rotatable about an axis directed in the front-rear direction via a ball bearing.
  • a swing shaft, a movable bracket fixed to the rear portion of the swing shaft, and a battery support frame welded to the movable bracket are provided.
  • a tray on which the battery is placed is fixed to the battery support frame.
  • An object of an aspect of the present invention is to provide an electric vehicle capable of improving an article storage space.
  • One aspect of the present invention includes a front vehicle body (3) including a single front wheel (2), a rear vehicle body (5) including a pair of left and right rear wheels (4), the front vehicle body (3), and the rear vehicle body. (5) is connected to the turning mechanism (6) so as to be relatively swingable about the axis (C1) facing the vehicle longitudinal direction, the motor (7) for driving the vehicle, and electric power to the motor (7).
  • An electric vehicle (1) including a battery (100) to be supplied, wherein at least a part of the rotating mechanism (6) is disposed behind the battery (100), and the motor ( At least a part of 7) is arranged above the axis (C1) and below the upper end of the rear wheel (4).
  • the battery is disposed behind the rotating mechanism and the rotating mechanism compared to the case where the battery is disposed above the rear portion of the rotating mechanism.
  • a wide space for storing articles can be secured upward.
  • the entire motor is disposed above the upper end of the rear wheel. Compared to the above, it is possible to secure a large space for storing articles above the rear wheel. Therefore, the storage space for the articles can be improved.
  • the upper limit of the arrangement height of the motor which is a heavy object, it is possible to prevent the center of gravity of the electric vehicle from becoming higher.
  • One embodiment of the present invention further includes a PCU (120) as an electrical component relating to the motor (7) and the battery (100), and at least a part of the PCU (120) in the side view is the axis (C1). ) And below the upper end of the rear wheel (4).
  • a PCU 120
  • goods can be ensured widely above a rear wheel.
  • the motor and the PCU are collectively arranged, it is possible to suppress an increase in the wiring connecting the motor and the PCU.
  • One aspect of the present invention further includes a PCU (120) as an electrical component relating to the motor (7) and the battery (100), and at least a part of the PCU (120) is from the rotating mechanism (6). Is also arranged below. According to this configuration, the gravity center position of the electric vehicle can be made as low as possible by setting the arrangement height of the PCU, which is a heavy object, to a position lower than the rotation mechanism. In addition, the PCU can be cooled using traveling air (cooling air) passing under the rotating mechanism.
  • One aspect of the present invention further includes a DC-DC converter (126) as an electrical component relating to the motor (7) and the battery (100), and at least a part of the DC-DC converter (126) in a side view. Is arranged above the axis (C1) and below the upper end of the rear wheel (4). According to this configuration, compared with the case where the entire DC-DC converter is disposed above the upper end of the rear wheel, a large space for storing articles can be secured above the rear wheel. In addition, by setting the upper limit of the arrangement height of the DC-DC converter, which is a heavy object, it is possible to suppress the center of gravity of the electric vehicle from becoming higher.
  • One aspect of the present invention further includes a junction box (123) as an electrical component relating to the motor (7) and the battery (100), and at least a part of the junction box (123) is the axis line in a side view. It is arranged above (C1) and below the upper end of the rear wheel (4). According to this structure, compared with the case where the whole junction box is arrange
  • One aspect of the present invention further includes a contactor (124) as an electrical component relating to the motor (7) and the battery (100), and at least a part of the contactor (124) is the axis (C1) in a side view. ) And below the upper end of the rear wheel (4).
  • One aspect of the present invention further includes a differential mechanism (51) that distributes the driving force of the motor (7) to the pair of left and right rear wheels (4), and in a side view, the differential mechanism (51) At least a part is arranged above the axis (C1) and below the upper end of the rear wheel (4).
  • the differential mechanism At least a part is arranged above the axis (C1) and below the upper end of the rear wheel (4).
  • the rear vehicle body (5) includes a swing arm (50) that supports the pair of left and right rear wheels (4), and the front vehicle body (3) and the swing arm (50)
  • a rear cushion (8) is interposed between the rear cushion (8) and at least part of the rear cushion (8) above the axis (C1) and higher than the upper end of the rear wheel (4). It is arranged below. According to this structure, compared with the case where the whole rear cushion is arrange
  • the rotating mechanism (6) is disposed at a vehicle body left-right center position, and the motor (7) is offset leftward or rightward with respect to the vehicle body left-right centerline (CL). It is arranged. According to this structure, it can suppress that the gravity center position of an electric vehicle becomes high compared with the case where a motor is arrange
  • One aspect of the present invention further includes a differential mechanism (51) that distributes the driving force of the motor (7) to the pair of left and right rear wheels (4).
  • the vehicle body overlaps with the left-right center line (CL). According to this configuration, the left and right shared loads in the electric vehicle can be optimized as compared with the case where the entire differential mechanism is arranged offset from the left and right center line of the vehicle body when viewed from above.
  • One aspect of the present invention is characterized in that the motor (7) is disposed in front of an axle (4a) of the rear wheel (4). According to this structure, since the motor which is a heavy article is relatively arrange
  • One aspect of the present invention further includes an electric cable (136) for supplying electric power to the motor (7), and at least a part of the electric cable (136) is arranged along the axis (C1). It is characterized by being searched. According to this configuration, since the electric cable can be routed linearly along the axis of the rotating mechanism, it is possible to prevent the electric cable from becoming long.
  • One aspect of the present invention further includes a PCU (120) as an electrical component relating to the motor (7) and the battery (100), and the rotating mechanism (6) is disposed at a vehicle body left-right center position, and is viewed from above.
  • the motor (7) and the PCU (120) are arranged on opposite sides of the vehicle body left-right center line (CL). According to this configuration, the left and right shared loads in the electric vehicle can be optimized as compared with the case where the motor and the PCU are concentrated on either the left side or the right side of the vehicle body center line.
  • One aspect of the present invention further includes a storage case (9) for storing a plurality of electrical components relating to the motor (7) and the battery (100), and the plurality of electrical components includes a PCU (120).
  • the PCU (120) is disposed on the outer side of the storage case (9). According to this configuration, the PCU can be cooled using traveling air (cooling air) that hits the outer side of the storage case.
  • One aspect of the present invention further includes a storage case (9) for storing a plurality of electrical components relating to the motor (7) and the battery (100).
  • the plurality of electrical components include a DC-DC converter (126). ), And the DC-DC converter (126) is disposed outside the storage case (9). According to this configuration, the DC-DC converter can be cooled using traveling air (cooling air) that hits the outer side of the storage case.
  • One aspect of the present invention includes a storage case (9) for storing a plurality of electrical components relating to the motor (7) and the battery (100), and a plurality of cables (131 to 131) respectively connected to the plurality of electrical components. 135), and the plurality of cables (131 to 135) are integrated together from the storage case (9). According to this configuration, since a plurality of cables integrated together can be routed from the storage case, the routing work can be easily performed.
  • the storage space for articles can be improved.
  • FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 2.
  • FIG. 5 is an explanatory view including a VI-VI cross section of FIG. 4 when the battery according to the embodiment is completely locked.
  • It is a left view of the battery storage apparatus which concerns on embodiment.
  • It is a perspective view of the battery storage apparatus which concerns on embodiment. It is explanatory drawing at the time of the lock non-completion of the battery which concerns on embodiment.
  • FIG. 16 is a view including a XVI-XVI cross section of FIG. 15. It is a left view of the electric vehicle which concerns on the 2nd modification of embodiment. It is a rear view of the electric vehicle which concerns on the 2nd modification of embodiment.
  • FIG. 16 is a view including a XVI-XVI cross section of FIG. 15. It is a left view of the electric vehicle which concerns on the 2nd modification of embodiment. It is a rear view of the electric vehicle which concerns on the 2nd modification of embodiment.
  • FIG. 19 is an explanatory diagram of an arrangement of a battery case according to a second modification of the embodiment, including a XIX-XIX cross section of FIG. It is a left view of the electric vehicle which concerns on the 3rd modification of embodiment.
  • FIG. 21 is a diagram including a cross section XXI-XXI in FIG. 20. It is a left view of the electric vehicle which concerns on the 4th modification of embodiment. It is a left view of the electric vehicle which concerns on the 5th modification of embodiment.
  • FIG. 1 is a diagram showing a left side surface of an electric tricycle (electric tricycle) which is an embodiment of an electric vehicle.
  • an electric vehicle 1 includes a front vehicle body 3 that supports a single front wheel 2 (steering wheel), a rear vehicle body 5 that supports a pair of left and right rear wheels 4 (drive wheels), and a front vehicle body. 3 and the rear vehicle body 5 are connected to each other so as to be capable of relative swinging around an axis C1 facing in the vehicle front-rear direction, a motor 7 for driving the vehicle, and a battery 100 for supplying electric power to the motor 7.
  • a front vehicle body 3 that supports a single front wheel 2 (steering wheel)
  • a rear vehicle body 5 that supports a pair of left and right rear wheels 4 (drive wheels)
  • front vehicle body 3 and the rear vehicle body 5 are connected to each other so as to be capable of relative swinging around an axis C1 facing in the vehicle front-rear direction
  • a motor 7 for driving the vehicle
  • a battery 100 for
  • the electric vehicle 1 is configured such that the front vehicle body 3 (swinging side vehicle body) on which an occupant rides can swing left and right (rolling motion) with respect to the rear vehicle body 5 (non-swinging side vehicle body) in which the left and right rear wheels 4 are grounded.
  • Reference sign C1 in the figure indicates a rolling axis (axis that faces in the vehicle front-rear direction) extending in the vehicle front-rear direction in the rotation mechanism 6.
  • the front vehicle body 3 includes a front wheel steering bar handle 11, an occupant seating seat 12, a floor 13 on which an occupant's foot can be placed, a vehicle body frame 14 forming a skeleton of the front vehicle body 3, a front wheel And a front wheel suspension device 15 for suspending the vehicle 2.
  • a straddle space 16 is formed between the bar handle 11 and the seat 12. The floor 13 is disposed below the straddling space 16.
  • the vehicle body frame 14 is located at the front end of the vehicle body frame 14 and tilts rearward with respect to the vertical direction, and a single front frame 21 (downward extending portion) extending obliquely rearward and downward from the head pipe 20.
  • a pair of left and right lower frames 22 (rear extending portions) branching left and right from the lower end portion of the front frame 21 and extending rearward, and obliquely rearwardly extending from the rear end portions of the left and right lower frames 22 respectively.
  • the front wheel suspension device 15 is supported by the head pipe 20 so as to be steerable.
  • the front wheel suspension device 15 includes a stem pipe 26 that penetrates the head pipe 20.
  • the bar handle 11 is fixed to the upper end portion of the stem pipe 26.
  • a pair of left and right pivot plates 27 are provided at the rear of the left and right lower frames 22.
  • a swing unit 49 is connected to the pair of left and right pivot plates 27 so as to swing up and down.
  • Reference numeral C2 in the figure indicates a pivot axis extending in the vehicle width direction.
  • the front vehicle body 3 is covered with a front vehicle body cover 30.
  • the front vehicle body cover 30 includes a front cover 31 that covers the periphery of the head pipe 20 and the front frame 21 from the front, an inner cover 32 that covers the periphery of the head pipe 20 and the front frame 21 from the rear, and a space below the seat 12.
  • An under-seat cover 33 for covering, and left and right rear side covers 34 for covering the rear frame 23 and the loading frame 24 from the side are provided.
  • Reference numeral 35 in the drawing indicates a storage box provided below the loading frame 24 and above the rear wheel 4.
  • the front cover 31 and the inner cover 32 constitute a leg shield 39 that covers the occupant's legs from the front.
  • a cargo bed front wall portion 40 stands from the front end portion of the cargo bed frame 24 .
  • a pair of left and right support columns 41 are erected from the upper end of the cargo bed front wall 40.
  • a wind screen 42 stands from the upper end portion of the front cover 31.
  • a roof 43 is installed between the upper end portion of the wind screen 42 and the upper end portions of the left and right support columns 41.
  • the rear vehicle body 5 includes a swing arm 50 that supports the pair of left and right rear wheels 4.
  • the swing arm 50 is disposed between the pair of left and right rear wheels 4.
  • the swing arm 50 is arranged with its length direction in the front-rear direction so as to extend from the rear end of the rotation mechanism 6 to the rear wheel axle 4a.
  • the swing arm 50 is connected to the front vehicle body 3 through the rotation mechanism 6 so as to be swingable up and down. That is, the rotation mechanism 6 and the swing arm 50 constitute a swing unit 49.
  • a rear wheel suspension device 55 (rear suspension 55) is configured on the rear vehicle body 5 including the swing unit 49 and the rear cushion 8.
  • the swing arm 50 houses the motor 7, a drive shaft (not shown), a differential mechanism, and the like.
  • a pair of left and right rear wheel axles 4a extend from the left and right sides of the rear portion of the swing arm 50, respectively.
  • the pair of left and right rear wheel axles 4a support the pair of left and right rear wheels 4, respectively.
  • the motor 7 is driven by the power of the battery 100.
  • the motor 7 is driven at a variable speed by VVVF (variable voltage variable frequency) control.
  • the driving force of the motor 7 is transmitted to the differential mechanism via a drive shaft (not shown).
  • the driving force transmitted to the differential mechanism is distributed to the left and right rear wheel axles 4a by the differential mechanism.
  • the driving force of the motor 7 is used to drive the left and right rear wheels 4 via a drive shaft and a differential mechanism.
  • the rotation mechanism 6 connects the front vehicle body 3 and the swing arm 50 so as to be capable of relative swinging around the rolling axis C1.
  • the rotation mechanism 6 can swing up and down with respect to the front vehicle body 3 together with the swing arm 50.
  • the rotation mechanism 6 includes a joint case 60 connected to a pair of left and right pivot plates 27 so as to be swingable up and down, a joint shaft 61 connected rotatably to the joint case 60, and a joint case And a rotation restraining mechanism 63 capable of restraining the relative rotation of the joint case 60 and the joint shaft 61.
  • the joint case 60 is disposed with its length direction directed in the front-rear direction so as to extend from the pivot axis C2 to the front of the swing arm 50.
  • the front end portion of the joint case 60 is connected to a pair of left and right pivot plates 27 so as to be rotatable around a pivot axis C2.
  • a lower end portion of the rear cushion 8 is connected to the upper portion of the joint case 60.
  • the joint shaft 61 is arranged with its length direction in the front-rear direction so as to follow the extending direction of the joint case 60.
  • the joint shaft 61 has a cylindrical shape with the rolling axis C1 as the central axis.
  • the front part of the joint shaft 61 is inserted into the joint case 60.
  • the joint shaft 61 is supported by the joint case 60 so as to be rotatable around the rolling axis C1.
  • the rear end portion of the joint shaft 61 is fixed to the front end portion of the swing arm 50.
  • the joint shaft 61 is not allowed to rotate about the rolling axis C1 with respect to the swing arm 50.
  • the Knighthard mechanism 62 is interposed between the front portion of the joint shaft 61 and the joint case 60. As shown in FIG. 3, the Knighthard mechanism 62 includes a Knighthard cam 65 fixed to the joint shaft 61, and a Knighthal travers 66 interposed between the Knighthard cam 65 and the inner surface of the joint case 60.
  • a plurality of night hull rubber bars 66 are provided.
  • the plurality of night hull rubbers 66 are engaged with the inner surface of the joint case 60.
  • the knight hull cam 65 has a cam surface 65a that faces the knight hull rubber 66 from both sides in the circumferential direction around the rolling axis C1.
  • the knight hull cam 65 presses the knight hull rubber 66 and elastically deforms the knight hull rubber 66 when it tries to rotate around the rolling axis C ⁇ b> 1 with respect to the joint case 60.
  • the night hull rubber 66 urges the night hull cam 65 toward the initial position by the restoring force when elastically deforming.
  • the Knighthard mechanism 62 urges the front vehicle body 3 connected to the joint case 60 in the standing direction with respect to the swing arm 50 coupled to the joint shaft 61 (see FIG. 2).
  • the rotation stopping mechanism 63 is provided inside the joint case 60.
  • the rotation stopping mechanism 63 stops the rotation of the joint shaft 61 relative to the joint case 60 in accordance with an operation of a parking lock lever (not shown).
  • the rotation stopping mechanism 63 operates together with a rear brake (not shown) when the parking lock lever is operated.
  • the rotation stopping mechanism 63 stabilizes the parking posture of the front vehicle body 3 connected to the joint case 60 by stopping the relative rotation of the joint case 60 and the joint shaft 61.
  • the battery 100 is disposed between a pair of left and right lower frames 22.
  • the battery 100 is composed of a plurality of unit batteries.
  • the battery 100 includes two unit batteries 101 and 102.
  • the two unit batteries 101 and 102 have the same configuration.
  • the two unit batteries 101 and 102 are provided symmetrically with respect to the vehicle body left-right center line CL.
  • the battery 100 (unit batteries 101 and 102) is also simply referred to as “battery”.
  • the left and right batteries 101 and 102 each have a prismatic shape having a rectangular cross section.
  • the left and right batteries 101 and 102 extend along the front-rear direction.
  • the left and right batteries 101 and 102 have a rectangular parallelepiped shape along the front-rear direction.
  • the battery 100 generates a predetermined high voltage (48 to 72 V) by connecting the left and right batteries 101 and 102 in series.
  • the left and right batteries 101 and 102 are each composed of a lithium ion battery as energy storage that can be charged and discharged.
  • the left and right batteries 101 and 102 include a BMU (Battery Managing Unit) (not shown) that monitors charge / discharge status, temperature, and the like.
  • BMU Battery Managing Unit
  • the left and right batteries 101 and 102 are connected to a PDU (Power Driver Unit) 121 via a junction box (distributor) 123 including a contactor (electromagnetic switch) 124.
  • the PDU 121 constitutes an integrated PCU (Power Control Unit) 120 together with an ECU (Electric Control Unit) 122.
  • the electric power from the battery 100 is supplied to the PDU 121 that is a motor driver through a contactor 124 that is linked to the main switch.
  • the electric power from the battery 100 is converted from direct current to three-phase alternating current by the PDU 121 and then supplied to the motor 7 which is a three-phase alternating current motor.
  • the motor 7 performs a power running operation according to the control by the PDU 121 and causes the electric vehicle to travel.
  • symbol 130 shows an electrical component.
  • Reference numeral 9 in the drawing denotes a storage case that stores electrical components other than the battery (see FIGS. 1 and 2).
  • the output voltage from the battery 100 is stepped down via the DC-DC converter 126 and used for charging a 12V sub-battery (not shown).
  • the sub-battery supplies electric power to general electric parts such as a lighting device and control system parts such as the ECU 122. By mounting the sub-battery, various electromagnetic locks can be operated even when the main battery 100 is removed.
  • the battery 100 is charged by a charger 125 connected to an external power supply while being mounted on the vehicle body.
  • the battery 100 (the left and right batteries 101 and 102) can be charged by a charger outside the vehicle while being removed from the vehicle body.
  • a first connection cable 131 is routed between the left battery 101 and the junction box 123.
  • a second connection cable 132 is routed between the right battery 102 and the junction box 123.
  • a third connection cable 133 is routed between the junction box 123 and the PCU 120.
  • a fourth connection cable 134 is routed between the junction box 123 and the charger 125.
  • a fifth connection cable 135 is routed between the junction box 123 and the DC-DC converter (down regulator) 126.
  • a three-phase cable 136 extends from the PDU 121. The three-phase cable 136 is connected to the motor 7.
  • a charging cable 137 is connected to the charger 125. Charging cable 137 may be detachable from charger 125. Charging cable 137 may be configured as an external charger.
  • Battery case 70 As shown in FIG. 2, the battery 100 is inserted into and removed from a battery case 70 (case) fixed to the front vehicle body 3.
  • the battery case 70 is fixed to the vehicle body frame 14 via a bracket and a sub stay (not shown).
  • the battery case 70 can store the left and right batteries 101 and 102.
  • the battery case 70 has an upper opening 71 that opens upward.
  • the battery case 70 is inclined so that the lower wall 72 located below the left and right batteries 101 and 102 (only the left battery 101 is shown in FIG. 6) and the rear side in the side view are located downward.
  • An inclined wall 73 is located below the lower wall 72 located below the left and right batteries 101 and 102 (only the left battery 101 is shown in FIG. 6) and the rear side in the side view.
  • the battery case 70 covers the left and right batteries 101 and 102 from below, an inclined wall 73 (front wall) that covers the left and right batteries 101 and 102 from the front, and the left and right batteries 101 and 102 from the rear.
  • a rear wall 74, a pair of left and right side walls 75 (see FIG. 4) that covers the left and right batteries 101, 102 from the left and right sides, and a partition wall 76 (see FIG. 4) positioned between the left and right batteries 101, 102 are provided.
  • the battery case 70 has a space 77 (hereinafter also referred to as “battery storage space 77”) in which the left and right batteries 101 and 102 can be stored.
  • the inclined wall 73 is connected to the front end of the lower wall 72.
  • the rear wall 74 is continuous with the rear end of the lower wall 72.
  • the pair of left and right side walls 75 are connected to the left and right ends of the lower wall 72.
  • the partition wall 76 is continuous with the center portion of the lower wall 72 in the vehicle width direction.
  • the partition wall 76 stands upward from the center of the lower wall 72 in the vehicle width direction.
  • a drain hole 78 is provided in the lower part of the battery case 70.
  • the drain hole 78 is provided in the rear part of the lower wall 72.
  • the drain hole 78 is an opening that penetrates the lower wall 72 in the vertical direction (thickness direction of the lower wall 72).
  • a lid 80 capable of opening and closing the upper opening 71 and a hinge shaft 81 for connecting the lid 80 so as to be rotatable about an axis along the vehicle width direction are provided on the upper part of the battery case 70.
  • a floor 13 (see FIG. 2) on which an occupant's feet can be placed is provided on the top of the lid 80.
  • a stay 28 that supports the floor 13 is connected to the body frame 14.
  • the stay 28 has a columnar shape along the front-rear direction.
  • a pair of stays 28 are provided on the left and right sides of the battery case 70.
  • a hinge shaft 81 is rotatably connected to the rear part of the pair of left and right stays 28.
  • the pair of left and right stays 28 support the floor 13 via a hinge shaft 81 and a lid 80 (see FIG. 6).
  • a projecting wall 83 facing the partition wall 76 is provided at the bottom of the lid 80.
  • the protruding wall 83 protrudes downward from the center of the lid 80 in the vehicle width direction.
  • An elastic member 84 having a U-shaped cross section is attached to the protrusion 83. The elastic member 84 is in contact with the inner surfaces of the left and right batteries 101 and 102 in the vehicle width direction.
  • the battery case 70 is provided with a case side connection terminal (not shown) for detachably connecting a battery terminal (hereinafter also referred to as “battery side connection terminal”).
  • a battery side connection terminal for detachably connecting a battery terminal
  • the battery side connection terminal and the case side connection terminal are connected by storing the left and right batteries in the battery case 70 and operating the battery lock mechanism 94 (see FIG. 6) in the locked state.
  • the operation of the battery lock mechanism 94 and the insertion and removal of the left and right batteries are manual.
  • the left and right batteries are attached to and detached from the vehicle body without tools.
  • the left and right batteries are mobile batteries that can be attached to and detached from the vehicle body.
  • the left and right batteries can be charged by a charger outside the vehicle, or used as a power source for external devices as a mobile battery.
  • the left and right batteries can be used alone.
  • Lid lock mechanism 85 As shown in FIG. 6, a lid lock mechanism 85 that can hold the lid 80 on the battery case 70 and a lid lock case 86 that houses the lid lock mechanism 85 are provided outside the battery case 70.
  • the lid lock mechanism 85 is provided at a position adjacent to the front portion of the battery case 70.
  • a pair of left and right lid lock mechanisms 85 are provided.
  • the lid locking mechanism 85 includes a lid locking claw 87 connected to the front lower portion of the lid 80 and a claw receiving portion 88 housed in the lid lock case 86.
  • the lid lock mechanism 85 is in a lid lock state in which the lid 80 is held by the battery case 70 by the lid latching claw 87 being latched by the claw receiving portion 88.
  • the lid locking mechanism 85 is in a lid unlocking state in which the lid 80 can be opened from the battery case 70 by pressing a lid unlocking button (not shown).
  • the lid lock case 86 has a box shape that covers the lid lock mechanism 85 (claw receiving portion 88) from the front, rear, and left and right sides.
  • the rear upper end of the lid lock case 86 is connected to the upper end of the inclined wall 73 of the battery case 70.
  • the lid lock case 86 and the battery case 70 are integrally formed of the same member.
  • the lid lock case 86 has a space 89 in which the lid lock mechanism 85 can be stored (hereinafter also referred to as “lid lock storage space 89”).
  • the lid lock storage space 89 is a separate room from the battery storage space 77.
  • the battery case 70 is provided with a battery storage device 91 that can store a battery.
  • the left and right batteries are arranged inside the battery storage device 91 side by side.
  • the battery storage device 91 includes a battery support frame 92 constituting a skeleton part of the battery storage device 91, a case-side connection terminal (not shown), and a case-side connection terminal as a battery-side connection terminal (not shown). ) And a terminal displacement mechanism 93 that displaces between a connection position J1 (see FIG. 6) that contacts and connects to a retracted position J2 that is spaced rearward from the connection position J1, and a battery lock mechanism 94 that can hold the battery in the battery case 70. And an operation lever 95 that can switch the battery lock mechanism 94 between a battery fixed state and a battery non-fixed state and that can operate the terminal displacement mechanism 93.
  • the retracted position J2 is a position where the case side connection terminal is separated from the battery side connection terminal in the battery entry direction (rear).
  • an inner case 96 that detachably accommodates the battery is attached to the inside of the battery support frame 92.
  • the inner case 96 is arranged side by side in the battery support frame 92.
  • Each inner case 96 has an insertion / removal opening 97 that opens forward.
  • the battery is set inside the inner case 96 by being slid obliquely along the inclined wall 73 and slid rearwardly into the inner case 96 through the insertion / removal port 97.
  • the battery set in the inner case 96 is fixed to the inner case 96 and the battery support frame 92 by the battery lock mechanism 94.
  • the battery side connection terminal is connected to the case side connection terminal (not shown) in each inner case 96 by the action of the battery lock mechanism 94.
  • the battery support frame 92 includes a first support frame 111 that supports the left inner case 96 (left battery 101) and a second support frame that supports the right inner case 96 (right battery 102). (Not shown) and a connection frame (not shown) for connecting the first support frame 111 and the second support frame.
  • the first support frame 111 includes a pair of left and right side frames 115 that extend back and forth along the left inner case 96, a cross pipe 116 that connects the rear ends of the left and right side frames 115, and an inner portion that is left and right.
  • a frame-like support frame 117 coupled to a lower region of the side frame 115 of the first frame. Since the second support frame has the same configuration as the first support frame 111, detailed description thereof is omitted.
  • the terminal displacement mechanism 93 includes a terminal holding member 140 that holds a case side connection terminal (not shown).
  • the terminal holding member 140 includes a base wall 141 that extends along the vehicle width direction, and a pair of left and right connecting walls 142 that bend and extend forward from both ends of the base wall 141 in the vehicle width direction.
  • the left and right connecting walls 142 are rotatably held at the rear end of the link plate 145 extending in the front-rear direction.
  • the front end portions of the left and right link plates 145 are rotatably connected to the front ends of the left and right lever pieces 151 of the operation lever 95.
  • the battery support frame 92 is provided with left and right support stays 146 that rotatably support the left and right lever pieces 151.
  • the left and right link plates 145 are pulled out to the front position when the operation lever 95 is rotated in one direction (counterclockwise direction in the figure). Thereby, the left and right connecting walls 142 of the terminal holding member 140 are displaced to the front position.
  • connection terminal held by the terminal holding member 140 is displaced from the retracted position J2 to the connection position J1 (see FIG. 6).
  • Reference numeral 147 in the drawing indicates a reinforcing frame attached to the left and right support stays 146.
  • the battery lock mechanism 94 When viewed from the front-rear direction of the vehicle, the battery lock mechanism 94 overlaps the pair of left and right batteries.
  • the battery lock mechanism 94 includes a movable block 160 that is rotatably attached to the front end portions of the left and right support stays 146.
  • the movable block 160 receives the operation force from the operation lever 95 and rotates toward the front surface of the battery case 70 when the operation lever 95 rotates from the initial position to a predetermined position range.
  • the movable block 160 is pressed against the front surface of the battery and restricts displacement in the battery removal direction.
  • the operation lever 95 is supported by the support stay 146 so as to be rotatable around a first rotation shaft 161 along the vehicle width direction.
  • the movable block 160 is supported by the support stay 146 so as to be rotatable around a second rotation shaft 162 orthogonal to the first rotation shaft 161.
  • the second rotation shaft 162 is pivotally supported on the upper end portion of the support stay 146.
  • the second rotation shaft 162 extends along the vertical direction of the vehicle.
  • the operation lever 95 has an operation piece 150 extending along the vehicle width direction, and left and right lever pieces 151 that are bent and extended from both ends of the operation piece 150.
  • the left and right lever pieces 151 are formed to be bent in an L shape in a side view (see FIG. 7).
  • the lever piece 151 includes a first piece 152 extending rearward and downward from the end of the operation piece 150 and a second piece 153 extending rearward and upward from the lower end of the first piece 152.
  • the second piece 153 is supported by the support stay 146 via the first rotation shaft 161.
  • the upper end portion of the link plate 145 is rotatably connected to the distal end portion of the second piece portion 153.
  • the movable block 160 includes a main body 163 that is rotatably supported by the second rotation shaft 162, a displacement restriction wall 164 that is connected to the main body 163, and a displacement restriction wall 164.
  • An elastic body block 165 attached to one surface, a holding force receiving wall 166 connected to the main body 163, and a cam wall 167 connecting the displacement regulating wall 164 and the holding force receiving wall 166 are provided.
  • the displacement regulating wall 164 can regulate the displacement of the battery in the lifting direction when displaced to the inner region of the inner case 96 (see FIG. 6).
  • the elastic body block 165 contacts the front surface of the battery when the displacement regulating wall 164 regulates the displacement of the battery in the lifting direction.
  • the elastic body block 165 comes into contact with the front surface of the battery, the elastic body block 165 is elastically deformed to cause a resilient force to act on the upper surface of the battery.
  • the holding force receiving wall 166 extends in a direction substantially perpendicular to the displacement regulating wall 164 when viewed from the direction along the second rotation shaft 162.
  • the holding force receiving wall 166 maintains a state in which the displacement regulating wall 164 and the elastic body block 165 regulate the displacement of the battery in the lifting direction by receiving a holding load from the lever piece 151 of the operation lever 95.
  • the cam wall 167 has a cam surface 167 a that smoothly continues from the displacement regulating wall 164 toward the back surface 166 a (holding force receiving surface) of the holding force receiving wall 166.
  • the movable block 160 includes a lock release position (see FIG. 7) in which the displacement restricting wall 164 and the elastic block 165 jumped upward in response to the turning operation of the operation lever 95, and the displacement restricting wall 164 and the elastic block 165 are the inner members. It can be rotated between a locked position (see FIG. 6) that is tilted approximately 90 ° inward of the case 96.
  • the battery lock mechanism 94 is in a battery non-fixed state when the displacement regulating wall 164 and the elastic body block 165 are in the unlocked position.
  • the battery lock mechanism 94 is in a battery-fixed state when the displacement regulating wall 164 and the elastic body block 165 are in the lock position.
  • the movable block 160 is constantly urged in the flip-up direction (upward) by an urging member (not shown) such as a spring.
  • the operation lever 95 when the battery is not fixed, the operation lever 95 is tilted to the uppermost position.
  • the operation piece 150 When the operation lever 95 is at the uppermost position, the operation piece 150 is displaced to an upper position than the insertion / removal port 97 (inner wall of the inner case 96).
  • the position of the operation lever 95 when the operation piece 150 is displaced to a position above the insertion / removal port 97 is defined as an “initial position”.
  • the operation lever 95 when the battery is fixed, the operation lever 95 is raised to the front lower position.
  • the operation piece 150 is displaced to the front position of the insertion / removal port 97.
  • the first piece 152 is formed with a cam projection 168 that bulges downward.
  • the cam protrusion 168 contacts the cam surface 167a of the movable block 160 that is in the flip-up state when the operation lever 95 is raised from the initial position to the front lower position. Thereafter, the cam protrusion 168 presses the movable block 160 in the rotational direction while being in sliding contact with the cam surface 167a. Thereby, the movable block 160 is rotated from the unlock position to the lock position.
  • the battery lock mechanism 94 and the terminal displacement mechanism 93 are operated by a common operation lever 95.
  • Each operation state of the battery lock mechanism 94 and the terminal displacement mechanism 93 is determined by the rotation operation position of the operation lever 95.
  • the terminal displacement mechanism 93 and the battery lock mechanism 94 are mutually connected so that the battery lock mechanism 94 fixes the battery by the operation of the operation lever 95 and the terminal displacement mechanism 93 displaces the case side connection terminal to the connection position J1 in this state. It is linked to.
  • FIG. 9 is a diagram showing the battery storage device 91 and the lid 80 when the operation lever 95 is in a state before the operation is completed.
  • FIG. 6 is a diagram showing the battery storage device 91 and the lid 80 when the operation lever 95 is in the operation completion state.
  • a pair of protrusions 82 are provided on the lower surface of the lid 80 so as to be separated from each other on the left and right. The protrusion 82 protrudes downward from the lower surface of the lid 80.
  • the pair of protrusions 82 enter the space above each operation lever 95 without contacting the operation lever 95 when the left and right operation levers 95 of the battery storage device 91 are completely operated to the operation completion position. (See FIG. 6).
  • the pair of protrusions 82 are set so as to contact the operation lever 95 when the front and rear operation levers 95 of the battery storage device 91 are in a state before the operation is completed (see FIG. 9). Therefore, when either the left or right operation lever 95 is not completely operated to the operation completion position, the closure of the lid 80 is obstructed by the protrusion 82. For this reason, it is possible to notify the operator that the operation lever 95 has not reached the operation completion position.
  • the protrusion 82 abuts on the operation lever 95 when the lid 80 is closed, so that the operation lever 95 can be pushed to the operation completion position.
  • the protrusion 82 is set so as to enter the space in front of the operation lever 95 and not come into contact with the operation lever 95.
  • a part of the battery 100 is disposed at a position overlapping the vehicle body frame 14 in a side view.
  • the lower part of the battery 100 overlaps the lower frame 22 in a side view.
  • the battery 100 is disposed between the front frame 21 and the rear frame 23 in a side view.
  • the battery 100 is disposed in front of the rotation mechanism 6 in a side view. That is, the rotation mechanism 6 is disposed behind the battery 100.
  • the battery 100 is disposed between a pair of left and right lower frames 22.
  • the battery 100 is disposed above the lower cross pipe 25.
  • the lower end of the battery 100 is located above the lower ends of the pair of left and right lower frames 22 in a side view. That is, the lower end of the lower frame 22 is positioned below the lower end of the battery 100.
  • the motor 7 is disposed above the rolling axis C ⁇ b> 1 and below the upper end of the rear wheel 4 in a side view.
  • symbol H ⁇ b> 1 indicates a virtual line that passes through the upper end of the rear wheel 4 and extends linearly in the front-rear direction.
  • the motor 7 is disposed between the rolling axis C1 and the imaginary line H1.
  • the motor 7 is disposed at a position overlapping the pair of left and right rear wheels 4.
  • the motor 7 is disposed in front of the rear wheel axle 4a.
  • the motor 7 is disposed between the outer peripheral edge of the rear wheel 4 and the rear wheel axle 4a in a side view.
  • the rotation mechanism 6 is disposed at the left and right center position of the vehicle body.
  • the rolling axis C1 overlaps the vehicle body left-right center line CL.
  • the motor 7 is disposed offset to the left with respect to the vehicle body left-right center line CL.
  • the storage case 9 stores a plurality of electrical components related to the motor 7 and the battery.
  • the storage case 9 has a rectangular parallelepiped shape having a length in the direction along the rolling axis C1.
  • the plurality of electrical components include a PCU 120, a DC-DC converter 126, a junction box 123, and a contactor 124.
  • the PCU 120, the DC-DC converter 126, the junction box 123, and the contactor 124 are disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the PCU 120, the DC-DC converter 126, the junction box 123, and the contactor 124 are disposed between the rolling axis C1 and the imaginary line H1.
  • the PCU 120 is arranged offset to the right with respect to the vehicle body left-right center line CL in a top view.
  • the motor 7 and the PCU 120 are disposed on opposite sides of the vehicle body center line CL.
  • the PCU 120 is disposed in the front part of the storage case 9.
  • the PCU 120 is disposed at the right end (outer part) of the storage case 9.
  • the DC-DC converter 126 is arranged offset to the left with respect to the vehicle body left-right center line CL.
  • the DC-DC converter 126 and the PCU 120 are disposed on opposite sides of the vehicle body left-right center line CL.
  • the DC-DC converter 126 is disposed at the front portion of the storage case 9.
  • the DC-DC converter 126 is disposed at the left end (outer side) of the storage case 9.
  • the junction box 123 is disposed at a position overlapping the vehicle body left-right center line CL.
  • the junction box 123 is disposed between the PCU 120 and the DC-DC converter 126.
  • the junction box 123 is disposed at the front end of the storage case 9.
  • the contactor 124 is disposed offset to the right with respect to the vehicle body left-right center line CL.
  • the contactor 124 is disposed between the vehicle body left-right center line CL and the PCU 120 when viewed from above.
  • the contactor 124 is disposed between the junction box 123 and the motor 7.
  • a differential mechanism 51 is disposed at the rear of the storage case 9.
  • the differential mechanism 51 distributes the driving force of the motor 7 to the pair of left and right rear wheels 4.
  • the differential mechanism 51 is disposed above the rolling axis C ⁇ b> 1 and below the upper end of the rear wheel 4 in a side view.
  • the differential mechanism 51 is disposed between the rolling axis C1 and the imaginary line H1.
  • the differential mechanism 51 is disposed at a position overlapping the pair of left and right rear wheels 4.
  • the differential mechanism 51 is disposed behind the motor 7.
  • the differential mechanism 51 is arranged coaxially with the rear wheel axle 4a in a side view.
  • the differential mechanism 51 overlaps the vehicle body left-right center line CL in a top view.
  • the differential mechanism 51 is disposed at the center of the left and right sides of the vehicle body.
  • reference numeral 52 indicates a power transmission mechanism (deceleration mechanism) that transmits the driving force of the motor 7 to the differential mechanism 51.
  • the lower portion of the rear cushion 8 is disposed above the rolling axis C ⁇ b> 1 and below the upper end of the rear wheel 4 in a side view. In the side view, the lower portion of the rear cushion 8 is disposed between the rolling axis C1 and the imaginary line H1. The rear cushion 8 is disposed in front of the storage case 9.
  • a three-phase cable 136 (electric cable) extends from the PDU 121 (see FIG. 5) constituting the PCU 120.
  • the three-phase cable 136 is connected to the motor 7.
  • the three-phase cable 136 extends from the PCU 120 toward the left and then bends backward to extend toward the motor 7.
  • a part of the three-phase cable 136 is routed along the rolling axis C1 (the vehicle body left-right center line CL).
  • a plurality of cables 131 to 135 (first connection cable 131 to fifth connection cable 135) respectively connected to the plurality of electrical components are connected to the junction box 123 (see FIG. 5). After the plurality of cables 131 to 135 are connected to the junction box 123, they are integrated together from the storage case 9 via a grommet (not shown).
  • reference numeral 139 denotes a harness in which a plurality of cables 131 to 135 are integrated from the storage case 9.
  • the rear vehicle body 5 supports the storage case 9 on a swing arm 50 that is under the spring of the rear suspension 55.
  • the storage case 9 stores the motor 7, the PCU 120, the DC-DC converter 126, the junction box 123, the contactor 124, and the like.
  • the space above the pair of left and right rear wheels 4 is utilized as an arrangement space for the large storage box 35 (see FIG. 1).
  • the electric vehicle 1 in the above embodiment includes the front vehicle body 3 that supports the single front wheel 2, the rear vehicle body 5 that supports the pair of left and right rear wheels 4, the front vehicle body 3, and the rear vehicle body 5.
  • the electric vehicle 1 includes a rotation mechanism 6 that is coupled to be rotatable about a rolling axis C1, a motor 7 for driving the vehicle, and a battery 100 that supplies electric power to the motor 7.
  • the mechanism 6 is disposed behind the battery 100, and the motor 7 is disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the rotation mechanism 6 is arranged behind the battery 100, so that the rear of the battery 100 and the rotation mechanism are compared with the case where the battery 100 is arranged above the rear part of the rotation mechanism.
  • An article storage space (arrangement space for the storage box 35) can be secured above 6.
  • the motor 7 is arranged above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view, so that the entire motor 7 is arranged above the upper end of the rear wheel 4.
  • a large space for storing articles can be secured above the rear wheel 4. Therefore, the storage space for the articles can be improved.
  • by setting the upper limit of the arrangement height of the motor 7 that is a heavy object it is possible to suppress an increase in the center of gravity position of the electric vehicle.
  • the PCU 120 is provided as an electrical component related to the motor 7 and the battery 100, and the PCU 120 is disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the effect of. Compared to the case where the entire PCU 120 is disposed above the upper end of the rear wheel 4, a large space for storing articles can be secured above the rear wheel 4.
  • by setting the upper limit of the arrangement height of the PCU 120 that is a heavy object it is possible to prevent the center of gravity of the electric vehicle from becoming higher.
  • the motor 7 and the PCU 120 are collectively arranged, it is possible to suppress an increase in the wiring that connects the motor 7 and the PCU 120.
  • the DC-DC converter 126 is provided as an electrical component related to the motor 7 and the battery 100, and the DC-DC converter 126 is located above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the following effects are obtained. Compared to the case where the entire DC-DC converter 126 is disposed above the upper end of the rear wheel 4, a large space for storing articles can be secured above the rear wheel 4.
  • the upper limit of the arrangement height of the DC-DC converter 126 which is a heavy object, it is possible to suppress the center of gravity of the electric vehicle from becoming higher.
  • the junction box 123 is provided as an electrical component related to the motor 7 and the battery 100, and the junction box 123 is disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the following effects are produced.
  • a large space for storing articles can be secured above the rear wheel 4.
  • the upper limit of the arrangement height of the junction box 123 which is a heavy object, it is possible to suppress the center of gravity of the electric vehicle from becoming higher.
  • the contactor 124 is provided as an electrical component related to the motor 7 and the battery 100, and the contactor 124 is disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view. The following effects are achieved. Compared to the case where the entire contactor 124 is disposed above the upper end of the rear wheel 4, a large space for storing articles can be secured above the rear wheel 4.
  • the differential mechanism 51 that distributes the driving force of the motor 7 to the pair of left and right rear wheels 4 is provided, and the differential mechanism 51 is located above the rolling axis C1 and from the upper end of the rear wheel 4 in a side view. Also, the following effects are achieved by being arranged below. Compared to the case where the entire differential mechanism 51 is disposed above the upper end of the rear wheel 4, a large space for storing articles can be secured above the rear wheel 4. In addition, by setting the upper limit of the arrangement height of the differential mechanism 51 that is a heavy object, it is possible to suppress the center of gravity of the electric vehicle from becoming higher.
  • the rear vehicle body 5 includes the swing arm 50 that supports the pair of left and right rear wheels 4, and the rear cushion 8 is interposed between the front vehicle body 3 and the swing arm 50, as viewed from the side.
  • the lower portion of the rear cushion 8 is disposed above the rolling axis C1 and below the upper end of the rear wheel 4, thereby providing the following effects.
  • a large space for storing articles can be secured above the rear wheel 4.
  • the rotation mechanism 6 is arranged at the left and right center position of the vehicle body, and the motor 7 is arranged offset to the left with respect to the left and right center line CL of the vehicle body. .
  • the motor 7 is disposed above the rotation mechanism 6, it is possible to suppress an increase in the position of the center of gravity of the electric vehicle.
  • the motor 7 by arranging the motor 7 so as to be offset to the left with respect to the vehicle body left-right center line CL, it is possible to effectively use the space avoiding the rotation mechanism 6.
  • the differential mechanism 51 that distributes the driving force of the motor 7 to the pair of left and right rear wheels 4 is provided, and the differential mechanism 51 overlaps with the vehicle body left-right center line CL in a top view, thereby achieving the following effects. Play. Compared with the case where the entire differential mechanism 51 is arranged offset with respect to the vehicle body left-right center line CL in a top view, the left and right shared loads in the electric vehicle can be optimized.
  • the motor 7 is arranged in front of the rear wheel axle 4a, and the following effects are obtained. Since the heavy motor 7 is disposed relatively near the front and rear center of the entire vehicle body, it is possible to suppress the influence of disturbance from the rear and contribute to mass concentration.
  • the three-phase cable 136 for supplying electric power to the motor 7 is provided, and a part of the three-phase cable 136 is routed along the rolling axis C1, thereby providing the following effects. Play. Since the three-phase cable 136 can be routed linearly along the rolling axis C1, it is possible to prevent the three-phase cable 136 from becoming long.
  • the PCU 120 is provided as an electrical component related to the motor 7 and the battery 100, the rotation mechanism 6 is disposed at the vehicle body left-right center position, and the motor 7 and the PCU 120 are viewed from above in the vehicle body left-right center line CL.
  • the motor 7 and the PCU 120 are concentrated on either the left side or the right side of the vehicle body left-right center line CL, the left and right shared loads in the electric vehicle can be optimized.
  • a storage case 9 that stores a plurality of electrical components related to the motor 7 and the battery 100 is provided.
  • the plurality of electrical components include the PCU 120, and the PCU 120 is disposed at the right end of the storage case 9. The following effects are achieved.
  • the PCU 120 can be cooled using traveling air (cooling air) that hits the right end of the storage case 9.
  • the storage case 9 for storing a plurality of electrical components related to the motor 7 and the battery 100 is provided, and the plurality of electrical components include the DC-DC converter 126.
  • the DC-DC converter 126 includes: By being arranged at the left end portion of the storage case 9, the following effects are produced.
  • the DC-DC converter 126 can be cooled using traveling air (cooling air) that hits the left end of the storage case 9.
  • the storage case 9 that stores a plurality of electrical components related to the motor 7 and the battery 100 and the plurality of cables 131 to 135 respectively connected to the plurality of electrical components are provided. ⁇ 135 are gathered together from the storage case 9 and have the following effects. Since a plurality of cables 131 to 135 integrated together can be routed from the storage case 9, the routing operation can be easily performed.
  • the lower frame 22 overlaps the lower part of the battery 100 in a side view, and the following effects are obtained.
  • the impact load input to the battery 100 due to the impact from the side of the battery 100 can be suppressed. That is, by suppressing the influence on the battery 100 due to disturbance from the side of the battery 100, the protection of the battery 100 can be improved.
  • the lower frame 22 is provided as a pair of left and right, and the battery 100 is disposed between the pair of left and right lower frames 22, thereby providing the following effects.
  • the impact load input to the battery 100 due to the impact of the battery 100 from the outside in the vehicle width direction can be suppressed. That is, it is possible to improve the protection of the battery 100 by suppressing the influence on the battery 100 due to the disturbance of the battery 100 from the outside in the vehicle width direction.
  • the lower end of the lower frame 22 is positioned below the lower end of the battery 100, thereby providing the following effects.
  • the impact load input to the battery 100 due to the impact from below the battery 100 can be suppressed. That is, it is possible to improve the protection of the battery 100 by suppressing the influence on the battery 100 due to disturbance from below the battery 100.
  • the battery 100 is provided in a pair of left and right, and each of the pair of left and right batteries 101 and 102 has a rectangular parallelepiped shape along the front-rear direction, thereby providing the following effects. Compared with the case where a pair of rectangular parallelepiped batteries are arranged one above the other, it is possible to prevent the center of gravity of the electric vehicle 1 from increasing.
  • a pair of left and right batteries 101 and 102 can be accommodated, the battery case 70 having an upper opening 71 that opens upward, and the upper opening 71 that can be opened and closed is positioned above the battery case 70.
  • the battery case 70 having an upper opening 71 that opens upward
  • the upper opening 71 that can be opened and closed is positioned above the battery case 70.
  • a lid 80 By including a lid 80, a floor 13 that is positioned on the lid 80 and on which a passenger's foot can be placed, and a stay 28 that supports the floor 13 and is connected to the vehicle body frame 14, the following is provided. There is an effect.
  • the battery case 70 having the upper opening 71 that opens upward the inside of the battery case 70 can be accessed from above the battery case 70, and thus the battery 100 can be easily stored and taken out.
  • the floor 13 that is located on the top of the lid 80 and on which the occupant's feet can be placed, the impact load input to the battery 100 in the impact from above the battery 100 by the lid 80 and the floor 13 can be performed. Can be suppressed. That is, by suppressing the influence on the battery 100 due to disturbance from above the battery 100, the protection of the battery 100 can be improved.
  • the floor 13 since the floor 13 is supported and the stay 28 connected to the vehicle body frame 14 is provided, the floor 13 can stably support the occupant's feet. That is, by connecting the stay 28 to the highly rigid body frame 14, it is possible to improve the stability of the occupant when placing his / her foot.
  • the lid lock mechanism 85 capable of fixing and holding the lid 80 to the battery case 70 is provided, and the lid lock mechanism 85 is arranged outside the battery case 70, and thus has the following effects. Since water or the like can be prevented from entering the inside of the battery case 70 through the lid lock mechanism 85, it is possible to suppress water exposure of the battery 100.
  • the lid lock mechanism 85 is provided with a pair of left and right, and thus has the following effects. Compared with the case where only one lid lock mechanism 85 is provided, the lid 80 can be more firmly fixed and held to the battery case 70.
  • the battery case 70 is inclined so that the lower wall 72 located below the pair of left and right batteries 101, 102 and the rear side in the side view are located downward, and at the front end of the lower wall 72.
  • the continuous inclined wall 73 By providing the continuous inclined wall 73, the following effects are produced. Since the batteries 101 and 102 can be moved along the inclined wall 73, the batteries 101 and 102 can be easily stored and taken out.
  • the battery case 70 is connected to the lower wall 72 that covers the pair of left and right batteries 101 and 102 from below, and the front wall 73 that is connected to the front end of the lower wall 72 and covers the pair of left and right batteries 101 and 102 from the front.
  • the pair of left and right batteries 101 and 102 are covered by the lower wall 72, the front wall 73, the rear wall 74, and the pair of side walls 75 of the battery case 70, the disturbance from the road surface to the pair of left and right batteries 101 and 102 or water exposure is suppressed. be able to. That is, since the battery case 70 has a so-called bathtub structure that covers the pair of left and right batteries 101 and 102 from the front and rear, the left and right, and the lower side, the waterproofness (submersion) of the batteries 101 and 102 when the lower part of the vehicle is immersed in a puddle or the like. Can be increased.
  • the drainage hole 78 is provided in the rear part of the lower wall 72, and the following effects are obtained. Even when water or the like enters the battery case 70, the water can be drained through the drain hole 78.
  • the battery case 70 is connected to the lower wall 72, and further includes the partition wall 76 positioned between the pair of left and right batteries 101, 102, thereby providing the following effects.
  • the partition wall 76 can restrict the movement of the pair of left and right batteries 101 and 102 in the vehicle width direction.
  • the battery lock mechanism 94 that can hold the pair of left and right batteries 101 and 102 in the battery case 70 is provided, and the battery lock mechanism 94 includes the pair of left and right batteries 101 and 102 as viewed from the vehicle traveling direction. By overlapping, the following effects are produced. Since the direction in which the batteries 101 and 102 are locked is the same as the traveling direction of the vehicle, the battery lock mechanism 94 can prevent the batteries 101 and 102 from moving due to inertia.
  • the present invention is not limited thereto.
  • the upper part or the lower part of the motor 7 may be disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view. That is, it is only necessary that at least a part of the motor 7 is disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the PCU 120, the DC-DC converter 126, the junction box 123, and the contactor 124 are provided as a plurality of electrical components related to the motor 7 and the battery, and all the electrical components are above and behind the rolling axis C1 in a side view.
  • the wheel 4 is disposed below the upper end of the wheel 4
  • the present invention is not limited thereto.
  • only one component among the plurality of electrical components may be disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • only some of the components of the plurality of electrical components may be disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view. That is, at least a part of the plurality of electrical components may be disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the present invention is not limited thereto.
  • only the upper part or the lower part of the differential mechanism 51 may be arranged above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view. That is, at least a part of the differential mechanism 51 may be disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the present invention is not limited thereto.
  • all of the rear cushion 8 may be disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view. That is, at least a part of the rear cushion 8 may be disposed above the rolling axis C1 and below the upper end of the rear wheel 4 in a side view.
  • the motor 7 is described as being offset to the left with respect to the vehicle body left-right center line CL.
  • the present invention is not limited to this.
  • the motor 7 may be arranged offset to the right with respect to the vehicle body left-right center line CL.
  • the motor 7 is disposed in front of the rear wheel axle 4a
  • the present invention is not limited to this.
  • the motor 7 may be arranged behind the rear wheel axle 4a.
  • the PCU 120 may be disposed outside the storage case 9.
  • the PCU 120 may be disposed below the swing arm 50.
  • the PCU 120 may be disposed below the rotation mechanism 6 in a side view. According to this configuration, the position of the center of gravity of the electric vehicle can be made as low as possible by setting the arrangement height of the PCU 120, which is a heavy object, to a position lower than the rotation mechanism 6. In addition, the PCU 120 can be cooled using traveling air (cooling air) passing under the rotation mechanism 6.
  • FIG. 12 illustrates an example in which the entire PCU 120 is disposed below the rotation mechanism 6, but is not limited thereto.
  • the lower part of the PCU 120 may be disposed below the rotation mechanism 6. That is, at least a part of the PCU 120 may be disposed below the rotation mechanism 6.
  • the lower frame 22 overlaps the lower part of the battery 100 in a side view, but the present invention is not limited to this.
  • the lower frame 22 may overlap the upper part of the battery 100 in a side view. That is, the lower frame 22 only needs to overlap at least a part of the battery 100.
  • the present invention is not limited thereto.
  • only the rear part of the rotation mechanism 6 may be disposed behind the battery 100. That is, at least a part of the rotation mechanism 6 may be disposed behind the battery 100.
  • drain hole 78 may be provided in the front portion of the lower wall 72.
  • drain holes 78 may be provided at the four corners of the lower wall 72. That is, the drain hole 78 may be provided in at least a part of the lower wall 72.
  • the motor 7 has been described by taking an example in which variable speed driving is performed by VVVF (variable voltage variable frequency) control, but the present invention is not limited thereto.
  • the motor 7 is not limited to being controlled to have a continuously variable transmission.
  • the motor 7 may be controlled so as to have a stepped transmission.
  • each of the pair of front and rear batteries 201 and 202 has a rectangular parallelepiped shape along the vertical direction. As shown in FIG. 14, each of the pair of front and rear batteries 201 and 202 is disposed at the vehicle body left and right center position. When viewed from the rear, each of the pair of front and rear batteries 201 and 202 has a symmetrical shape with the vehicle body centerline CL as the axis of symmetry.
  • a floor 213 on which a passenger's feet can be placed is provided on the left and right sides of the front and rear batteries 201 and 202.
  • the floor 213 is disposed outside the front and rear batteries 201 and 202 in the vehicle width direction.
  • the floor 213 is disposed at a position overlapping the lower portions of the front and rear batteries 201 and 202 in a side view.
  • the floor 213 is inclined and extends linearly so as to be positioned higher toward the rear side.
  • the front and rear batteries 201 and 202 are inserted into and removed from the battery case 270 fixed to the front vehicle body 3.
  • the battery case 270 can store the front and rear batteries 201 and 202.
  • the battery case 270 is disposed on the front lower side of the seat 12.
  • the battery case 270 has an upper opening 271 that opens upward.
  • the battery case 270 includes a lower wall 272 that covers the front and rear batteries 201 and 202 from below, a front wall 273 that covers the front and rear batteries 201 and 202 from the front, a rear wall 274 that covers the front and rear batteries 201 and 202 from the rear, and the front and rear batteries 201. , 202 and a pair of left and right side walls 275 that cover the left and right sides.
  • a lid 280 capable of opening and closing the upper opening 271 and a hinge shaft 281 for connecting the lid 280 so as to be rotatable around an axis along the vehicle width direction are provided.
  • the hinge shaft 281 is provided at the upper front portion of the battery case 270.
  • the hinge shaft 281 is provided at the upper end portion of the front wall 273.
  • a placement area 283 where an article can be placed is provided on the upper surface of the lid 280.
  • the lid 280 has a rectangular shape having a longitudinal length in the front-rear direction.
  • the lid 280 is provided with a frame wall 284 that stands upward so as to surround the placement region 283.
  • the frame wall 284 has a rectangular frame shape.
  • the frame wall 284 is disposed closer to the front than the front-rear center position of the lid 280 when viewed from above.
  • a second lid 290 that enables access to the placement area 283, and a second hinge shaft 291 that couples the second lid 290 so as to be rotatable about an axis along the vehicle width direction. And are provided.
  • the second hinge shaft 291 is provided on the front upper part of the frame wall 284. When viewed from above, the second lid 290 has a rectangular shape smaller than the lid 280. The second hinge shaft 291 is located behind the hinge shaft 281.
  • each of the pair of front and rear batteries 201 and 202 has a rectangular parallelepiped shape along the up-and-down direction, thereby providing the following effects.
  • a pair of rectangular parallelepiped batteries are arranged one above the other, it is possible to prevent the center of gravity of the electric vehicle from becoming higher.
  • the floor 213 on which the passenger's feet can be placed is provided, and the floor 213 is disposed outward in the vehicle width direction of the pair of front and rear batteries 201 and 202. Play.
  • the height of the floor 213 can be set without being affected by the height of the pair of front and rear batteries 201 and 202. Therefore, the height of the floor 213 (occupant's footrest height) can be made as low as possible.
  • a pair of front and rear batteries 201 and 202 can be accommodated, the battery case 270 having an upper opening 271 that opens upward, and the upper opening 271 that can be opened and closed is positioned above the battery case 270.
  • the shaft 281 is provided at the front portion of the battery case 270, and thus has the following effects.
  • the battery case 270 having the upper opening 271 that opens upward, the inside of the battery case 270 can be accessed from above the battery case 270, so that the battery can be easily stored and taken out.
  • the hinge shaft 281 is provided at the front portion of the battery case 270, the lid 280 can be opened and closed without being affected by the seat 12 positioned on the rear upper side of the battery case 270.
  • the placement area 283 on which the article can be placed is provided on the upper surface of the lid 280, and the following effects are obtained. Since the article can be placed using the placement region 283 on the upper surface of the lid 280, the storage space for the article can be further improved. In addition, since the placement area 283 can be accessed while being seated on the seat 12, it is possible to easily store and take out articles.
  • the lid 280 is provided with the frame wall 284 that rises upward so as to surround the placement region 283, and thus has the following effects. Since an article can be stored inside the frame wall 284, the storage space for the article can be further improved. In addition, since the inside of the frame wall 284 can be accessed while being seated on the seat 12, it is possible to easily store and take out articles.
  • the second lid 290 is located above the frame wall 284 and allows access to the placement area 283, and the second lid 290 can be rotated about an axis along the vehicle width direction.
  • the second hinge shaft 291 is provided at the front portion of the frame wall 284, and has the following effects. Since the second hinge shaft 291 is provided at the front portion of the frame wall 284, the second lid 290 can be opened and closed without being affected by the seat 12 positioned on the rear upper side of the battery case 270.
  • each of the pair of left and right batteries 301 and 302 is disposed below the seat 12.
  • each of the pair of left and right batteries 301 and 302 has a rectangular parallelepiped shape that is inclined so as to be positioned higher toward the outer side in the vehicle width direction.
  • the pair of left and right batteries 301, 302 are provided symmetrically with respect to the vehicle body center line CL.
  • the left and right batteries 301 and 302 are inserted into and removed from the battery case 370 fixed to the front vehicle body 3.
  • the battery case 370 can store the left and right batteries 301 and 302.
  • the battery case 370 is disposed below the seat 12.
  • the battery case 370 has an upper opening 371 that opens upward.
  • the battery case 370 includes a lower wall 372 that covers the left and right batteries 301 and 302 from below, a front wall 373 that covers the left and right batteries 301 and 302 from the front, a rear wall 374 that covers the left and right batteries 301 and 302 from the rear, and a left and right battery 301.
  • 302 is provided with a pair of left and right side walls 375 that cover the left and right sides.
  • a lid 380 that can open and close the upper opening 371, and a hinge shaft 381 that connects the lid 380 so as to be rotatable around an axis along the vehicle width direction are provided.
  • the hinge shaft 381 is provided at the upper rear part of the battery case 370.
  • the lid 380 is disposed below the sheet 12.
  • the hinge shaft 381 is provided at the upper end portion of the rear wall 374.
  • the sheet 12 is formed so that it can be flipped up in the direction of the arrow V1.
  • the space below the sheet 12 can be opened. That is, the battery case 370 can be accessed by flipping the seat 12 in the direction of the arrow V1.
  • each of the pair of left and right batteries 301 and 302 has a rectangular parallelepiped shape that is inclined so as to be positioned upward toward the outer side in the vehicle width direction.
  • a seat 12 on which an occupant can be seated a battery case 370 that can store the pair of left and right batteries and that has an upper opening 371 that opens upward, and is positioned above the battery case 370, A lid 380 that can open and close the upper opening 371, and the lid 380 is arranged below the sheet 12, and thus has the following effects.
  • the battery case 370 having the upper opening 371 that opens upward the inside of the battery case 370 can be accessed from above the battery case 370, so that the battery can be easily stored and taken out.
  • the lid 380 since the lid 380 is disposed below the seat 12, the lid 380 and the seat 12 can suppress an impact load input to the battery due to an impact from above the battery. In other words, battery protection can be improved by suppressing the influence on the battery due to disturbance from above the battery.
  • the pair of left and right batteries 301 and 302 are disposed below the seat 12
  • the present invention is not limited thereto.
  • the pair of left and right batteries 301 and 302 may be arranged along the leg shield 39 (see FIG. 1).
  • the electric vehicle according to the present modification is particularly different from the embodiment in that it includes a center frame extending rearward from the lower end of the front frame.
  • the same components as those in the embodiment are denoted by the same reference numerals and detailed description thereof is omitted.
  • illustration of a lid lock mechanism, a battery storage device, and the like is omitted.
  • the center frame 429 extends rearward from the lower end portion of the front frame 21.
  • the center frame 429 is disposed at the left and right center position of the vehicle body.
  • the battery 100 is located above the center frame 429 in a side view.
  • the lower portions of the left and right batteries 101 and 102 are disposed between a pair of left and right lower frames 22 in front view.
  • the lower ends of the left and right batteries 101 and 102 are located above the center frame 429. That is, the center frame 429 is positioned below the lower ends of the left and right batteries 101 and 102.
  • illustration of a battery case etc. is abbreviate
  • the center frame 429 has the following effects by being positioned below the lower end of the battery.
  • the impact load input to the battery due to the impact from below the battery can be suppressed. That is, the battery protection can be improved by suppressing the influence on the battery due to the disturbance from below the battery.
  • the electric vehicle includes a first motor that drives the left rear wheel 4 and a second motor that drives the right rear wheel 4.
  • the first motor and the second motor are in-wheel type motors (hereinafter also referred to as “in-wheel motors”) provided in the wheel of the rear wheel 4.
  • the first motor and the second motor are each disposed at a position overlapping the rear wheel 4 in a side view.
  • Reference numeral 407 in the figure indicates an in-wheel motor.
  • reference numeral 121 denotes a PDU
  • reference numeral 126 denotes a DC-DC converter.
  • the DC-DC converter 126 is disposed close to the left and right batteries.
  • the differential mechanism (differential gear) can be eliminated by providing the in-wheel motor 407, the unsprung weight of the rear suspension 55 can be reduced. Therefore, the independence when the vehicle is stopped can be improved.
  • the electrical components other than the in-wheel motor 407 are gathered in the front vehicle body 3 and thus have the following effects. Compared with the case where all of the electrical components are concentrated on the rear vehicle body, the shared load of the front and rear wheels 4 can be optimized.
  • the electrical components other than the in-wheel motor 407 are concentrated at the center of the front vehicle body 3 in the vehicle width direction, and thus have the following effects. Compared with the case where the electrical components are concentrated at the outer end of the front vehicle body 3 in the vehicle width direction, the right and left shared loads can be optimized.
  • the electrical components other than the in-wheel motor 407 are mounted on the spring of the rear suspension 55, so that the weight of the rear suspension 55 under the spring can be reduced. Therefore, the operability of the rear suspension 55 can be improved, and road surface followability and bad road running performance can be improved.
  • the DC-DC converter 126 is arranged in the vicinity of the left and right batteries, and has the following effects. Compared with the case where the DC-DC converter 126 is arranged far away from the left and right batteries, the voltage drop can be suppressed.
  • the pivot shaft is provided on the rear frame 23.
  • the rotation mechanism 506 is connected to the rear frame 23 so as to be rotatable around the pivot axis C2.
  • the rolling axis C1 extends linearly from a position higher than the position of FIG.
  • the swing unit 49 (the turning mechanism 506 and the swing arm 50) is inclined so as to follow the rolling axis C1.
  • the coupling position P1 of the rotation mechanism 506 is provided in the rear frame 23, and the following effects are obtained. Compared with the case where the coupling position P1 of the rotation mechanism 506 is provided in the lower frame 22, the coupling position P1 of the rotation mechanism 506 with respect to the front vehicle body 3 can be increased. As a result, the amount of movement when the vehicle body is tilted increases, so that it is easier to turn with a small tilt. In addition, the independence when the vehicle is stopped can be improved.
  • the electric vehicle is a covered tricycle
  • the present invention is not limited to this.
  • the electric vehicle may be a vehicle without a roof.
  • the present invention is widely applicable to saddle-ride type vehicles capable of relatively rotating the front and rear vehicle bodies.
  • the saddle-ride type electric vehicle includes all vehicles on which the driver rides across the vehicle body, and includes motorcycles (including motorbikes and scooter type vehicles). Not only three-wheel vehicles (including one front wheel and two rear wheels but also two front wheels and one rear wheel vehicle) or four-wheel vehicles are also included.

Abstract

L'invention concerne un véhicule électrique (1) comportant : une carrosserie de véhicule avant (3) dotée d'une seule roue avant (2); une carrosserie de véhicule arrière (5) dotée d'une paire de roues arrière gauche et droite (4); un mécanisme rotatif (6) qui raccorde la carrosserie de véhicule avant (3) à la carrosserie de véhicule arrière (5) de manière à pouvoir tourner relativement autour d'une ligne d'axe (C1) orientée dans la direction avant-arrière du véhicule; un moteur (7) pour le déplacement du véhicule; et une batterie (100) qui fournit de l'énergie au moteur (7), au moins une partie du mécanisme rotatif (6) étant agencée derrière la batterie (100), et, vu dans une vue latérale, au moins une partie du moteur (7) étant agencée au-dessus de la ligne d'axe (C1) et au-dessous de l'extrémité supérieure des roues arrière (4).
PCT/JP2018/016997 2018-04-26 2018-04-26 Véhicule électrique WO2019207713A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2018/016997 WO2019207713A1 (fr) 2018-04-26 2018-04-26 Véhicule électrique
CN201880092388.9A CN111971226A (zh) 2018-04-26 2018-04-26 电动车辆
JP2020515389A JP6972321B2 (ja) 2018-04-26 2018-04-26 電動車両

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/016997 WO2019207713A1 (fr) 2018-04-26 2018-04-26 Véhicule électrique

Publications (1)

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WO2019207713A1 true WO2019207713A1 (fr) 2019-10-31

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JP (1) JP6972321B2 (fr)
CN (1) CN111971226A (fr)
WO (1) WO2019207713A1 (fr)

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EP4059781A1 (fr) * 2021-03-16 2022-09-21 Renault s.a.s Boîtier pour composants électriques d'un véhicule automobile
JP2022180187A (ja) * 2021-05-24 2022-12-06 ヤマハ発動機株式会社 バッテリ収容装置及び電動車両

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