JP2021084573A - Saddle-riding type electric vehicle - Google Patents

Abstract

To inhibit reduction of a component arrangement space and protect a cable for supplying a driving current from an inverter to an electric motor.SOLUTION: In a saddle-riding type electric vehicle, an electric motor 31 and a transmission 41 are arranged side by side in a vehicle width direction, and the electric motor 31 has a terminal box 34 protruding upward from an upper part outer surface 32A. The transmission 41 has a protruding part 45 protruding upward farther than the upper part outer surface 32A of the electric motor 31. The terminal box 34 and the protruding part 45 are arranged side by side in the vehicle width direction with a gap formed therebetween. A battery case 52 is disposed above the electric motor 31 and the transmission 41. A driving power cable 82 passes through a space 90, surrounded by the terminal box 34, the protruding part 45, the battery case 52, and the upper part outer surface 32A of the electric motor 31, to be connected to the terminal box 34.SELECTED DRAWING: Figure 7

Description

The present invention relates to a saddle-mounted electric vehicle whose main power source is an electric motor.

Currently, saddle-type electric vehicles such as motorcycles that use an electric motor as the main power source are becoming widespread. The saddle-mounted electric vehicle includes an electric motor for driving the drive wheels, a battery, and an inverter. The inverter converts the current from the battery from direct current to alternating current to generate a drive current for driving the electric motor. The drive current is supplied from the inverter to the electric motor via a cable connecting the two. Hereinafter, the cable that supplies the drive current from the inverter to the electric motor is referred to as a "drive power cable".

Patent Document 1 below describes an electric vehicle in which the wiring connecting the motor drive device and the motor is arranged along the swing arm.

Japanese Unexamined Patent Publication No. 2002-264664

In a saddle-type electric vehicle, a drive power cable is an important cable that supplies a drive current to an electric motor that generates running power. Therefore, it is necessary to protect the drive power cable from the collision of an object from the outside. Further, since the drive current flowing through the drive power cable is a large current, it is necessary to protect the driver and the like from the large current flowing through the drive power cable.

In this regard, it is conceivable to add a protective member such as a partition wall surrounding the drive power cable to the saddle-type electric vehicle to protect the drive power cable and the driver and the like. However, the addition of the protective member reduces the space for arranging other parts in the saddle-mounted electric vehicle. For example, the addition of the protective member reduces the space for arranging the battery, which may make it difficult to secure a sufficient capacity of the battery.

The present invention has been made in view of, for example, the above-mentioned problems, and an object of the present invention is to provide a cable (drive power cable) that supplies a drive current from an inverter to an electric motor while suppressing a decrease in component placement space. It is an object of the present invention to provide a saddle-type electric vehicle that can protect or protect a driver or the like from a large current flowing through the cable.

In order to solve the above problems, the saddle-mounted electric vehicle of the present invention includes an electric motor that generates running power, a transmission that shifts the rotation of the electric motor and transmits it to the drive wheels, and power to the electric motor. A battery case containing a battery for supplying the motor, an inverter that converts the current supplied from the battery from DC to AC to generate a drive current for driving the electric motor, and the drive current from the inverter. The electric motor and the transmission are arranged side by side in the vehicle width direction, and the electric motor has a terminal box protruding upward from the upper outer surface of the electric motor. The machine has a protruding portion protruding upward from the upper outer surface of the electric motor, the terminal box and the protruding portion are lined up in the vehicle width direction through a gap, and the cable passes through the gap to the terminal box. It is characterized by being connected to.

According to the present invention, the cable (drive power cable) that supplies the drive current from the inverter to the electric motor is protected while suppressing the reduction of the component placement space, or the driver or the like is protected from the large current flowing through the cable. be able to.

It is explanatory drawing which shows the state which saw the saddle-type electric vehicle of the Example of this invention from the left. It is explanatory drawing which shows the state which saw the body frame, the electric motor, the transmission, the inverter, the battery unit and the like in the saddle type electric vehicle of the Example of this invention from above. It is explanatory drawing which shows the state which removed the battery unit and the like from FIG. It is explanatory drawing which shows the state which the electric motor, the transmission, the inverter, the battery unit and the like in the saddle-type electric vehicle of the Example of this invention are seen from the left. It is a perspective view which shows the electric motor, the transmission and the drive power cable in the saddle-type electric vehicle of the Example of this invention. It is an enlarged view which shows the upper part of the electric motor, the upper part of a transmission, the lower part of a battery case, etc. in FIG. FIG. 6 is a cross-sectional view showing an upper portion of an electric motor, an upper portion of a transmission, a lower portion of a battery case, and the like as viewed from the direction of arrow VII-VII in FIG.

The saddle-mounted electric vehicle according to the embodiment of the present invention includes an electric motor that generates running power, a transmission that shifts the rotation of the electric motor and transmits it to the drive wheels, and a battery that supplies power to the electric motor. It is equipped with a battery case, an inverter that converts the current supplied from the battery from DC to AC to generate a drive current for driving the electric motor, and a drive power cable that supplies the drive current from the inverter to the electric motor. ing.

Further, in the saddle-mounted electric vehicle of the present embodiment, the electric motor and the transmission are arranged side by side in the vehicle width direction. Further, the electric motor has a terminal box protruding upward from the upper outer surface of the electric motor. Further, the transmission has a protruding portion protruding upward from the upper outer surface of the electric motor. Further, the terminal box and the protruding portion of the transmission are arranged in the vehicle width direction through a gap, and the drive power cable is connected to the terminal box through the gap.

According to the saddle-mounted electric vehicle of the present embodiment, the terminal box and the protruding portion of the transmission function as partition walls, respectively, and the drive power cable passing through the gap formed between them is collided with an object from the outside. It is possible to protect the driver and the like from a large current flowing through the drive power cable. As described above, according to the saddle-mounted electric vehicle of the present embodiment, it is possible to protect the drive power cable and protect the driver and the like by using the existing parts without adding a protective member separately. Therefore, it is possible to protect the drive power cable and the driver, etc., while suppressing the reduction of the component placement space in the saddle-mounted electric vehicle.

Examples of the saddle-type electric vehicle of the present invention will be described. In the description of the embodiment, when the directions of the upper (U), lower (D), front (F), rear (B), left (L), and right (R) are described, the saddle-mounted electric motor is used. It is based on the direction seen by the driver who drives the vehicle. The arrows at the bottom right of each figure indicate these directions.

FIG. 1 shows a state in which the saddle-mounted electric vehicle 1 according to the embodiment of the present invention is viewed from the left. FIG. 2 shows a state in which the vehicle body frame 2, the electric motor 31, the transmission 41, the inverter 71, the battery unit 51, and the like in the saddle-mounted electric vehicle 1 are viewed from above. FIG. 3 shows a state in which the battery unit 51 and the like are removed from FIG. FIG. 4 shows a state in which the electric motor 31, the transmission 41, the inverter 71, the battery unit 51, and the like are viewed from the left.

In FIG. 1, the saddle-mounted electric vehicle 1 of this embodiment is a scooter-type motorcycle. The saddle-mounted electric vehicle 1 has an underbone type body frame 2. The body frame 2 includes a head pipe 3 arranged at the front of the saddle-mounted electric vehicle 1, a down tube 4 extending downward from the head pipe 3, and a lower portion of the saddle-mounted electric vehicle 1 rearward from the lower end of the down tube 4. A pair of left and right lower frames 5 extending to the left, a pair of left and right seat rails 6 extending rearward while rising from the rear of each of the pair of lower frames 5, and a pair of lower frames 5 extending backward while rising from the rear ends of each. It has a pair of left and right rear frames 7 that extend. Further, as shown in FIG. 2, cross members 8, 9 and the like are provided between the pair of lower frames 5, the pair of seat rails 6, and the pair of rear frames 7, respectively.

Further, as shown in FIG. 1, in the saddle-mounted electric vehicle 1, the handle 11 and the front fork 12 are fixed to the steering shaft (not shown) rotatably supported by the head pipe 3, and the front fork 12 A front wheel 13 as a steering wheel is rotatably supported at the lower end of the wheel. Further, a swing arm 15 is provided in the lower part of the rear portion of the saddle-mounted electric vehicle 1. The front end portion of the swing arm 15 is supported by a swing shaft 16 at the lower portion of the rear portion of the vehicle body frame 2 so as to be swingable in the vertical direction. Further, a rear wheel 18 as a driving wheel is rotatably supported at the rear end portion of the swing arm 15. Further, a rear shock unit 19 is provided between the swing arm 15 and the rear frame 7 on the left side, and between the swing arm 15 and the rear frame 7 on the right side, respectively. Further, the saddle-mounted electric vehicle 1 has a seat 21 on which the driver can sit.

Further, as shown in FIG. 2, the saddle-mounted electric vehicle 1 includes an electric motor 31, a transmission 41, a battery unit 51, an inverter 71, a supply power cable 81, and a plurality of drive power cables 82.

The electric motor 31 is, for example, a brushless motor and generates running power. As shown in FIGS. 3 and 4, the electric motor 31 has a covered cylindrical motor housing 32 that houses a rotating shaft 33, a rotor, a stator, and the like. Further, the electric motor 31 has a terminal box 34, and a drive power cable 82 is connected to the terminal box 34.

The transmission 41 is a device that shifts (specifically, decelerates) the rotation of the electric motor 31 and transmits it to the rear wheels 18. The transmission 41 has a covered cylindrical transmission case 42, and the drive shaft 43, the transmission gear 44, and the like are housed in the transmission case 42. Further, the left end portion of the drive shaft 43 projects outward from the transmission case 42, and a drive chain 47 is provided between the left end portion of the drive shaft 43 and the driven sprocket on the rear wheel side, as shown in FIG. It is hung.

Further, as shown in FIG. 3, the electric motor 31 and the transmission 41 are arranged side by side in the vehicle width direction (left-right direction) of the saddle-mounted electric vehicle 1. X in FIG. 3 indicates the center in the vehicle width direction. The electric motor 31 is arranged at a position closer to the right side with respect to the center of the saddle-mounted electric vehicle 1 in the vehicle width direction, and the transmission 41 is located closer to the left side with respect to the center of the saddle-mounted electric vehicle 1 in the vehicle width direction. Is located in. Further, the transmission 41 is attached to the left portion of the electric motor 31 and is integrated (unitized) with the electric motor 31. Further, as shown in FIG. 1, the unit in which the electric motor 31 and the transmission 41 are integrated is arranged in the lower part of the saddle-mounted electric vehicle 1 substantially in the center in the front-rear direction, and is located below the seat 21. .. Further, the unit in which the electric motor 31 and the transmission 41 are integrated is supported by a pair of lower frames 5.

The battery unit 51 is a unit having a battery case 52, a battery 61, and a plurality of electrical components. As shown in FIG. 1, the battery unit 51 is located substantially in the center of the saddle-mounted electric vehicle 1 in the front-rear direction, above the electric motor 31 and the transmission 41, and below the seat 21. Further, X in FIG. 2 indicates the center in the vehicle width direction. As shown in FIG. 2, the battery unit 51 is arranged at the center in the vehicle width direction. Further, the vehicle width direction dimension of the battery unit 51 is larger than the vehicle width direction dimension of the unit in which the electric motor 31 and the transmission 41 are integrated, and the unit in which the electric motor 31 and the transmission 41 are integrated is a battery. It fits within the width of the unit 51. Further, the battery unit 51 is supported by a pair of seat rails 6, a pair of rear frames 7, and the like.

The battery case 52 is formed in a box shape, for example, by casting aluminum. As can be seen in FIG. 4, the rear portion 54 of the battery case 52 extends downward as compared with the front portion 53 of the battery case 52. In other words, the lower part of the front part 53 of the battery case 52 is recessed along the outer shape of the upper part of the electric motor 31 and the transmission 41. Further, the front portion 53 of the battery case 52 is located above the electric motor 31 and the transmission 41, the rear portion 54 of the battery case 52 is located behind the electric motor 31 and the transmission 41, and the rear portion of the battery case 52 is located. The lower surface 56 of the 54 is located lower than the uppermost portions of the electric motor 31 and the transmission 41, respectively.

The battery 61 is a device that supplies electric power to the electric motor 31 and electrical components. The battery 61 is housed in the battery case 52 as shown by the broken line in FIG. The battery 61 has two cell units 62 formed by stacking a plurality of cells. The two cell units 62 are arranged side by side in the front-rear direction in the battery case 52. Of the two cell units 62, the rear cell unit 62 has more cells stacked than the front cell unit 62, and the rear cell unit 62 has a vertical dimension more than the front cell unit 62. large. Further, the battery 61 is fixed to the right portion in the battery case 52. As shown in FIG. 2, the battery case 52 is arranged at a position to the left with respect to the center in the vehicle width direction, but the battery 61 in the battery case 52 is located at the center in the vehicle width direction.

The plurality of electrical components unitized in the battery unit 51 include, for example, a battery management unit, a relay, a fuse, an in-vehicle charger 65, and a DC / DC converter (DC-DC converter) 66. Although not shown, the battery management unit, relays and fuses are located on the left side of the battery 61 and are housed in the battery case 52. Further, as shown in FIG. 2, the in-vehicle charger 65 and the DC / DC converter 66 are located on the right side of the battery 61, are arranged outside the battery case 52, and are placed on the right outer surface of the battery case 52 via the component mounting bracket 67. It is attached.

The inverter 71 is a device that converts the current supplied from the battery 61 from direct current to alternating current to generate a driving current (for example, three-phase alternating current) for driving the electric motor 31. As can be seen from FIGS. 1 and 2, the inverter 71 is located between the lower frame 5 on the left side and the lower frame 5 on the right side, and is arranged below the footboard 72. Further, as shown in FIG. 4, the inverter 71 is arranged in front of the electric motor 31 and the transmission 41, and is located below the terminal box 34 of the electric motor 31.

The power supply cable 81 is a cable that connects between the battery 61 and the inverter 71 and supplies a direct current from the battery 61 to the inverter 71. As can be seen from FIGS. 2 and 4, the power supply cable 81 extends from the left side of the front portion 53 of the battery case 52 downward and forward on the left side of the center in the vehicle width direction, and extends from the left portion of the rear portion of the inverter 71. Has reached.

Each of the plurality of drive power cables 82 is a cable that connects between the inverter 71 and the electric motor 31 and supplies a drive current from the inverter 71 to the electric motor 31. The saddle-mounted electric vehicle 1 is provided with three drive power cables 82. The inverter 71 generates, for example, three-phase drive currents of U-phase, V-phase, and W-phase. These three-phase drive currents are supplied to the electric motor 31 via the three drive power cables 82. As can be seen from FIGS. 3 and 4, each drive power cable 82 extends rearwardly and upwardly from the rear portion of the inverter 71 and reaches the terminal box 34 of the electric motor 31. Further, each drive power cable 82 is arranged substantially in the center in the vehicle width direction. Further, each drive power cable 82 is arranged so as to follow the contour from the front portion to the upper portion of the electric motor 31. Further, a portion of each drive power cable 82 that is closer to the front than the center in the front-rear direction is fixed to a cable mounting bracket 83 attached to the upper front portion of the electric motor 31 via a stopper 84.

Although not shown, the saddle-mounted electric vehicle 1 includes a motor control cable in addition to the three drive power cables 82. The motor control cable is connected between the electric motor 31 and the inverter 71, and is wired along the contour from the front part to the upper part of the electric motor 31 in almost the same manner as the drive power cable 82, and the cable mounting bracket 83. It is fixed via a stopper.

Further, in the saddle-mounted electric vehicle 1, the rear end side portions of the three drive power cables 82 are the terminal box 34 of the electric motor 31, the protruding portion 45 of the transmission 41, the lower portion of the battery case 52, and the electric motor 31. It has a structure surrounded by the upper outer surface 32A of the above. Hereinafter, this structure will be described with reference to FIGS. 5 to 7. FIG. 5 shows an electric motor 31, a transmission 41, and a drive power cable 82. FIG. 6 shows an enlarged view of the upper part of the electric motor 31, the upper part of the transmission 41, the lower part of the battery case 52, and the like in FIG. FIG. 7 shows a cross section of the upper part of the electric motor 31, the upper part of the transmission 41, the lower part of the battery case 52, etc. as seen from the direction of arrow VII-VII in FIG. Note that FIG. 7 omits the illustration of the internal components of the battery case 52, the electric motor 31, and the transmission 41.

As shown in FIG. 5, the terminal box 34 projects upward from the upper outer surface 32A of the electric motor 31. More specifically, the terminal box 34 is arranged behind the rotation shaft 33 of the electric motor 31 as shown in FIG. 6, and the terminal box 34 is a motor of the electric motor 31 as shown in FIG. It projects upward and rearward from the rear side portion of the upper outer surface 32A of the housing 32.

Further, the transmission 41 has a protruding portion 45 protruding upward from the upper outer surface 32A of the electric motor 31. More specifically, the transmission 41 is arranged behind the rotating shaft 33 of the electric motor 31 as shown in FIG. 6, and the protruding portion 45 is the upper outer surface 32A of the electric motor 31 as shown in FIG. It protrudes above and behind the rear part of. That is, in the transmission case 42, a part of the portion accommodating the large-diameter transmission gear 44 pivotally supported by the drive shaft 43 located behind the rotation shaft 33 of the electric motor 31 is the upper outer surface of the electric motor 31. It protrudes from the rear part of 32A. This protruding portion corresponds to the protruding portion 45.

Further, as shown in FIG. 6, the rear portion 54 of the battery case 52 extends downward as compared with the front portion 53 of the battery case 52, and the lower surface 56 of the rear portion 54 of the battery case 52 is in front of the battery case 52. It is located lower than the lower surface 55 of the portion 53. Then, from the lower surface 56 of the front portion 53 of the battery case 52 to the lower surface 55 of the rear portion 54 of the battery case 52, an inclined surface 57 that descends toward the rear is formed.

Further, as described above, the front portion 53 of the battery case 52 is located above the electric motor 31 and the transmission 41, and the rear portion 54 of the battery case 52 is located behind the electric motor 31 and the transmission 41. The lower surface 56 of the rear portion 54 of the battery case 52 is located lower than the uppermost portions of the electric motor 31 and the transmission 41, respectively. Then, as shown in FIG. 6, the front side portions of the upper portions of the terminal box 34 and the protruding portion 45 oppose the lower surface 55 of the front portion 53 of the battery case 52, and the upper portions of the terminal box 34 and the protruding portion 45, respectively. The rear portion of the battery case 52 opposes the inclined surface 57 of the rear portion 54 of the battery case 52. As a result, the upper and rear sides of the terminal box 34 and the protrusion 45 are covered with the battery case 52, respectively.

As shown in FIG. 5, the terminal box 34 and the protruding portion 45 are aligned in the vehicle width direction with a gap. Then, as shown in FIG. 6, the upper side and the rear side of the terminal box 34 and the protruding portion 45 are covered with the battery case 52, respectively. As a result, as shown in FIG. 7, between the unit in which the electric motor 31 and the transmission 41 are integrated and the battery case 52, the left side 34A of the terminal box 34, the right side 45A of the protrusion 45, and the battery case 52 A space 90 is formed by a surface from the lower surface 56 of the front portion 53 to the inclined surface 57 and an upper outer surface 32A of the electric motor 31. Further, as shown in FIG. 3, since the terminal box 34 is located on the right side of the center in the vehicle width direction and the protrusion 45 is located on the left side of the center in the vehicle width direction, the space 90 is located in the center in the vehicle width direction. Is located in.

The rear end side portion of each drive power cable 82 passes through the space 90 and is connected to the left side surface 34A of the terminal box 34. As a result, the rear end side portion of each drive power cable 82 extends from the lower surface 56 to the inclined surface 57 of the left surface 34A of the terminal box 34, the right surface 45A of the protruding portion 45, and the front portion 53 of the battery case 52 in the center in the vehicle width direction. It is surrounded by the surface of the electric motor 31 and the upper outer surface 32A of the electric motor 31. Further, the connection portion between each drive power cable 82 and the terminal box 34 is located on the left side surface 34A of the terminal box 34. The left side surface 34A of the terminal box 34 faces the space 90, and the connection portion between each drive power cable 82 and the terminal box 34 is located in the space 90.

A mudguard 23 is attached to the inclined surface 57 of the battery case 52. The mudguard 23 is not shown in FIG. 6, but is shown in FIG. The mudguard 23 is arranged at the center in the vehicle width direction, hangs downward from the inclined surface 57 of the battery case 52, and covers the rear of the electric motor 31. The mudguard 23 separates the space 90 from the space below and behind the space 90.

As described above, in the saddle-mounted electric vehicle 1 of the embodiment of the present invention, the electric motor 31 and the transmission 41 are arranged side by side in the vehicle width direction, and the electric motor 31 is a terminal protruding upward from the upper outer surface 32A thereof. The transmission 41 has a box 34, and the transmission 41 has a protruding portion 45 protruding upward from the upper outer surface 32A of the electric motor 31, and the terminal box 34 and the protruding portion 45 are aligned in the vehicle width direction with a gap. .. Further, the battery case 52 is arranged above the electric motor 31 and the transmission 41. Then, the drive power cable 82 is connected to the terminal box 34 through the space 90 surrounded by the terminal box 34, the protrusion 45, the battery case 52, and the upper outer surface 32A of the electric motor 31. According to this configuration, the terminal box 34, the protruding portion 45, the battery case 52, and the upper outer surface 32A of the electric motor 31 can each function as partition walls surrounding each drive power cable 82, and the space surrounded by these can be made to function. Each drive power cable 82 passing through the inside of the 90 can be protected from a collision of an object from the outside. Further, by arranging each drive power cable 82 in the space 90, it is possible to prevent the driver or the like from coming into contact with the drive power cable 82, and the driver or the like can be prevented from the large current flowing through the drive power cable 82. Can be protected.

Further, the terminal box 34, the transmission 41, and the battery case 52 are all existing parts of the saddle-mounted electric vehicle 1. According to the saddle-mounted electric vehicle 1 of the present embodiment, the existing parts are used to protect the drive power cable 82 and the driver, etc., without adding a protective member for protecting the drive power cable 82. It can be protected. Therefore, by adding the protective member for protecting the drive power cable, it is possible to prevent the space for arranging other parts in the saddle-mounted electric vehicle 1 from being reduced. For example, by adding the protective member, the space for arranging the battery 61 is reduced, and it is possible to avoid that the capacity of the battery 61 cannot be sufficiently secured. As described above, according to the saddle-mounted electric vehicle 1 of the present embodiment, it is possible to protect the drive power cable 82 and the driver and the like while suppressing the reduction of the component placement space.

Further, in the saddle-mounted electric vehicle 1 of the present embodiment, the front portion 53 of the battery case 52 is located above the electric motor 31, and the rear portion 54 of the battery case 52 is located behind the electric motor 31. The rear portion 54 of the 52 extends below the front portion 53 of the battery case 52, and the upper and rear portions of the terminal box 34 and the protruding portion 45 are covered by the battery case 52, respectively. With this configuration, the battery case 52 can be used to cover the upper side and the rear side of each drive power cable 82, and the range covering each drive power cable 82 can be expanded. Therefore, the protection of the drive power cable 82 and the protection of the driver and the like from the large current flowing through the drive power cable 82 can be strengthened.

Further, in the saddle-mounted electric vehicle 1 of the present embodiment, the terminal box 34 is located on the right side of the center in the vehicle width direction, and the protruding portion 45 is located on the left side of the center in the vehicle width direction. The space 90 through which the power cable 82 passes is located at the center in the vehicle width direction. By arranging the space 90 through which each drive power cable 82 passes in the center in the vehicle width direction, each drive power cable 82 can be surrounded by a recessed portion inside the saddle-type electric vehicle 1. Therefore, it is possible to make it more difficult for an object from the outside to collide with the drive power cable 82, and it is possible to reliably prevent the drive power cable 82 from coming into contact with the driver or the like.

Further, in the saddle-mounted electric vehicle 1 of the present embodiment, the terminal box 34 and the transmission 41 are arranged behind the rotation shaft 33 of the electric motor 31, and the terminal box 34 is behind the upper outer surface 32A of the electric motor 31. It protrudes upward and rearward from the side portion, and the protruding portion 45 projects upward and rearward from the rear side portion of the upper outer surface 32A of the electric motor 31. According to this configuration, the height of the terminal box 34 and the projecting portion 45 (relative to the ground) is higher than that in the case where the terminal box 34 and the projecting portion 45 project directly upward from the upper outer surface 32A of the electric motor 31. The height in the vertical direction) can be lowered. Therefore, in the saddle-mounted electric vehicle 1, a large space can be secured between the unit in which the electric motor 31 and the transmission 41 are integrated and the seat 21, and other parts are arranged using the space. Or the battery 61 arranged in the space can be enlarged to increase the battery capacity.

Further, in the saddle-mounted electric vehicle 1 of the present embodiment, since the inverter 71 is arranged in front of the electric motor 31 and located below the terminal box 34, the drive power cable 82 is connected to the electric motor 31. It can be arranged compactly along the line, and it is possible to easily protect the drive power cable 82.

Further, the saddle-mounted electric vehicle 1 of the present embodiment has a mudguard 23 that covers the rear of the electric motor 31, and is provided between the space 90 and the space below and behind the space 90 by the mudguard 23. Are separated. The mudguard 23 can prevent stones, sand, soil, etc. from entering the space 90 from the lower rear of the space 90, and protects the drive power cable 82 arranged in the space 90. be able to.

In the above embodiment, the connection position on the rear end side of each drive power cable 82 is set to the left side (inner side surface) of the terminal box 34, but the connection position on the rear end side of each drive power cable 82 is limited to this. Instead, for example, it may be arranged on another surface facing the space 90.

Further, in the saddle-mounted electric vehicle 1 of the present invention, the left and right arrangements of the electric motor 31 and the transmission 41 may be reversed. Further, the arrangement of each electrical component in the battery unit 51 is not limited.

Further, the present invention is not limited to the scooter type motorcycle described as an example, and can be applied to various types of motorcycles such as road sports, super sports, tourers, and off-road motorcycles. Further, the present invention is not limited to motorcycles, but can be applied to various saddle-type vehicles such as motorcycles and buggies.

Further, the present invention can be appropriately modified within the scope of the claims and within a range not contrary to the gist or idea of the invention that can be read from the entire specification, and a saddle-type electric vehicle accompanied by such a modification is also of the present invention. Included in technical ideas.

1 Saddle-type electric vehicle 31 Electric motor 32A Outer surface 33 Rotating shaft 34 Terminal box 41 Transmission 45 Protruding part 51 Battery unit 52 Battery case 53 Front part 54 Rear part 55, 56 Bottom surface 57 Inclined surface 61 Battery 71 Inverter 82 Drive power cable ( cable)
90 space

Claims (6)

An electric motor that generates running power and
A transmission that shifts the rotation of the electric motor and transmits it to the drive wheels.
A battery case containing a battery that supplies electric power to the electric motor, and a battery case.
An inverter that converts the current supplied from the battery from direct current to alternating current and generates a drive current for driving the electric motor.
A cable for supplying the drive current from the inverter to the electric motor is provided.
The electric motor and the transmission are arranged side by side in the vehicle width direction, the electric motor has a terminal box protruding upward from the upper outer surface of the electric motor, and the transmission is above the upper outer surface of the electric motor. The terminal box and the protruding portion are aligned in the vehicle width direction through a gap, and the cable is connected to the terminal box through the gap. Saddle-mounted electric vehicle. The battery case is located above the electric motor and the transmission, and the cable is connected to the terminal box through the terminal box, the protrusion, and the space surrounded by the battery case. The saddle-mounted electric vehicle according to claim 1. The front part of the battery case is located above the electric motor, the rear part of the battery case is located behind the electric motor, and the rear part of the battery case extends below the front part of the battery case. The saddle-mounted electric vehicle according to claim 2, wherein the upper and rear portions of the terminal box and the protruding portion are covered with the battery case. The saddle according to any one of claims 1 to 3, wherein the terminal box is located on one side of the center in the vehicle width direction, and the protruding portion is located on the other side of the center in the vehicle width direction. Riding electric vehicle. The terminal box and the transmission are arranged behind the rotation axis of the electric motor, the terminal box projects upward and rearward from a rear portion of an upper outer surface of the electric motor, and the protruding portion is an upper portion of the electric motor. The saddle-mounted electric vehicle according to any one of claims 1 to 4, wherein the saddle-mounted electric vehicle projects upward and rearward from a rear portion of the outer surface. The saddle-type electric vehicle according to any one of claims 1 to 5, wherein the inverter is arranged in front of the electric motor and is located below the terminal box.

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