JP7118039B2 - Straddle-type electric tricycle - Google Patents

Description

The present invention relates to a straddle-type electric tricycle, and more particularly to a straddle-type electric tricycle having a front vehicle body that supports front wheels and a rear vehicle body that supports a pair of left and right rear wheels.

Straddle-type electric tricycles are conventionally known that have one front wheel and two rear wheels and run by driving the rear wheels with a motor.

Patent Document 1 discloses a vehicle including a front vehicle body that supports front wheels and a rear vehicle body that supports rear wheels. A configuration is disclosed that includes a swinging device that is pivotally supported so as to be swingable in the roll direction.

JP 2019-77287 A

However, the structure of Patent Document 1 has a problem that the front-to-rear dimension of the vehicle tends to increase because of the structure in which the rocking device is provided at the rear end portion of the vehicle body frame that constitutes the front vehicle body.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems of the prior art and to provide a straddle-type electric tricycle capable of reducing the front-to-rear dimension of the vehicle by devising the structure and arrangement position of the rocking device. be.

In order to achieve the above object, the present invention provides a front body (BF) that supports a single front wheel (WF) and a rear body (BR) that supports a pair of left and right rear wheels (WR) as drive wheels. a power unit (90) that supports the rear wheels (WR) and houses a motor (M); and a power unit (90) that is attached to the front vehicle body (WF) to allow the rear vehicle body (BR) to swing in the roll direction. In a straddle-type electric tricycle (1) including a pivotally supported rocking device (50), two saddle-type electric tricycles (1) are stored side by side in the vehicle width direction below a seat (22) fixed to the front body (BF). A battery (B) and a pair of left and right vehicle body side terminals (99) connected from below to battery side terminals (100) respectively provided at the bottoms of the two batteries (B), and the rocking device ( 50) are disposed between the pair of left and right vehicle body side terminals (99) in plan view of the vehicle body.

A second feature is that the battery side terminal (100) is arranged at a position closer to the outside in the vehicle width direction of the battery (B).

Further, the vehicle-body-side terminals (99) are covered from below by cover members (30L, 30R), and the cover members (30L, 30R) and the rocking device (50) are arranged such that, when viewed from the side of the vehicle body, The third feature is that they overlap each other.

The rocking device (50) is fixed to the vehicle body frame (F) of the front vehicle body (BF) by front support portions (51L, 51R) and a rear support portion (55). A fourth feature is that (51L, 51R) are arranged in the longitudinal direction of the vehicle body at the same position as the front end of the battery (B).

Further, the vehicle body frame (F) constituting the front vehicle body (BF) includes a head pipe (F2), a down frame (F3) extending downward from the head pipe (F2), and a down frame (F3) connected to the down frame (F3). and a pair of left and right floor frames (F4) extending rearwardly, the floor frame (F4) being disposed between the pair of left and right vehicle body terminals (99), and the pair of left and right floor frames (F4) ), the oscillating device (50) is arranged between them.

Further, a control device (64) for the motor (M) is supported by the rear vehicle body (BR), and the rear end of the rocking device (50) is aligned with the control device (64) in the longitudinal direction. The sixth feature lies in the point of overlap.

According to the first feature, the front body (BF) that supports a single front wheel (WF), the rear body (BR) that supports a pair of left and right rear wheels (WR) as drive wheels, and the rear A power unit (90) that supports a wheel (WR) and accommodates a motor (M), and a rocker that is attached to the front body (WF) and pivotally supports the rear body (BR) so that it can rock in the roll direction. In a straddle-type electric tricycle (1) including a driving device (50), two batteries (B) are stored side by side in the vehicle width direction below a seat (22) fixed to the front body (BF). and a pair of left and right vehicle-body terminals (99) connected from below to battery-side terminals (100) respectively provided on the bottoms of the two batteries (B), wherein the rocking device (50): In a plan view of the vehicle body, the rocking device is arranged between the pair of left and right vehicle body side terminals (99). can be arranged closer to the front vehicle body side, making it easier to reduce the dimension of the front vehicle body in the front-rear direction.

According to the second feature, the battery-side terminal (100) is disposed at a position closer to the vehicle width direction outer side of the battery (B), so that the vehicle-body-side terminal connected to the battery-side terminal is located in the vehicle. By separating in the width direction, the space for accommodating the rocking device is increased, and the rocking device can be easily arranged in the center in the vehicle width direction.

According to the third feature, the vehicle-body-side terminal (99) is covered from below by the cover members (30L, 30R), and the cover members (30L, 30R) and the rocking device (50) Since they overlap each other when viewed from the side of the vehicle body, the rocking device comes close to the lower surface of the front vehicle body, and the vertical dimension of the front vehicle body can be reduced.

According to the fourth feature, the rocking device (50) is fixed to the vehicle frame (F) of the front vehicle body (BF) by front support portions (51L, 51R) and rear support portions (55). Since the front side support portions (51L, 51R) are arranged in the longitudinal direction of the vehicle body at the same position as the front end of the battery (B), the rocking device is arranged below the battery. As a result, it is possible to reduce the longitudinal dimension of the front vehicle body and to concentrate the mass.

According to the fifth feature, the vehicle body frame (F) constituting the front vehicle body (BF) includes a head pipe (F2), a down frame (F3) extending downward from the head pipe (F2), and a down frame (F3) extending downward from the head pipe (F2). a pair of left and right floor frames (F4) connected to the frame (F3) and extending rearward; Since the rocking device (50) is arranged between the pair of floor frames (F4), the floor frame is accommodated between the left and right vehicle body terminals, thereby reducing the vehicle width dimension of the front vehicle body. becomes possible. Further, the vertical dimension of the front vehicle body can be reduced by arranging the rocking device between the left and right floor frames.

According to the sixth feature, the control device (64) for the motor (M) is supported by the rear vehicle body (BR), and the rear end of the rocking device (50) is connected to the control device ( 64) in the longitudinal direction, the longitudinal dimension of the vehicle can be reduced, and the mass can be concentrated.

1 is a perspective view of a straddle-type electric tricycle according to an embodiment; FIG. Fig. 2 is a left side view of the straddle-type electric tricycle; Fig. 3 is a left side view of the straddle-type electric three-wheeled vehicle with exterior parts removed from the state shown in Fig. 2; FIG. 2 is a perspective view of a vehicle body frame that constitutes the front vehicle body; It is a perspective view of a rocking device. Fig. 3 is a left side view of the rear vehicle body; It is a perspective view of a rear side vehicle body. FIG. 11 is a perspective view of the bed frame cover; It is a top view of a loading platform. FIG. 4 is a perspective view of a rear vehicle body frame that supports a loading platform; Fig. 2 is a perspective view of the rear vehicle body with exterior parts removed; Fig. 2 is a perspective view of the rear vehicle body with exterior parts removed; Fig. 2 is a partially enlarged left side view of the straddle-type electric tricycle with exterior parts removed; It is a block diagram showing the connection relationship of the high-voltage harness. FIG. 4 is a plan view of the rear vehicle body with exterior parts removed; Fig. 2 is a partially enlarged right side view of the straddle-type electric tricycle with exterior parts removed; 17 is a bottom view of the straddle-type electric tricycle of FIG. 16. FIG. 4 is a cross-sectional view along line XVIII-XVIII of FIG. 3; FIG. 4 is a cross-sectional view along line XIX-XIX of FIG. 3; FIG. It is a right view which shows the positional relationship of a battery and a rocking|swiveling apparatus. It is a perspective view which shows the positional relationship of a battery and a rocking|swiveling apparatus. It is a left view which shows the positional relationship of a battery and a rocking|swiveling apparatus.

Preferred embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of a straddle-type electric tricycle 1 according to this embodiment. 2 is a left side view of the straddle-type electric three-wheeled vehicle 1, and FIG. 3 is a left side view of the straddle-type electric three-wheeled vehicle 1 with exterior parts removed from the state shown in FIG.

A straddle-type electric tricycle 1 is a scooter in which a front vehicle body BF supporting one front wheel WF and a rear vehicle body BR supporting two rear wheels WR are pivotally supported by a swing device 50 so as to be swingable in the roll direction. It is a type of electric vehicle. Two high-voltage batteries (main batteries) B for supplying electric power to the motor M driving the rear wheels WR are housed side by side in the vehicle width direction below the seat 22 provided in the front vehicle body BF. The two batteries B can be removed from the vehicle body by pulling upward with the openable seat 22 opened. A low floor 12 is provided between the steering wheel 2 and the seat 22 on which the driver's feet are placed.

A vehicle body frame F that constitutes the front vehicle body BF includes a head pipe F2 that pivotally supports a steering stem F1 to which a steering handle 2 is fixed, a down frame F3 that extends rearward and downward from the head pipe F2, and a down frame F3 that extends rearward and downward from the head pipe F2. It includes a pair of left and right curved frames F6 that are connected to both side surfaces of the frame F3 and extend downward and curve rearward, and a pair of left and right floor frames F4 that are connected to the curved frames F6 and extend rearward.

A pair of left and right rearview mirrors 3 and a meter device 4 are attached to the steering handle 2 . A bottom bridge F5 is fixed to the lower end of the steering stem F1 that supports the steering handle 2. A pair of left and right front forks 9 that rotatably support the front wheels WF are fixed to the bottom bridge F5. .

A rocking device 50 that rockably supports the front vehicle body BF and the rear vehicle body BR is fixed to the lower part of the floor frame F4 at a position below the battery B. As shown in FIG. A pair of left and right swing arms 16 that are pivotally supported by pivots 24 are provided on the rear side vehicle body BR having a large loading platform 19, and a power unit 90 that supports the rear wheels WR is provided at the rear of the swing arms 16. is installed.

The front of the head pipe F2 is covered with a center cowl 5 connected to a pair of left and right side cowls 10, and a leg shield 11 is arranged behind the head pipe F2. Front flasher lamps 6 are attached to the left and right of the extending portion that supports the headlight 7 , and a front fender 8 that covers the front wheel WF is supported by a front fork 9 .

An under cowl 13 is connected to the left and right ends of the low floor 12 to cover the sides and bottom of the floor frame F4. Below the seat 22, an under-seat cowl 14 that covers the battery case 29 from the front and a rear cover 15 connected to the rear of the under-seat cowl 14 are arranged.

As shown in FIG. 3, behind the battery B and inside the rear cover 15, a junction box J, which is a wiring terminal, is arranged. Battery B and junction box J constitute a power supply device that supplies power to motor M. FIG. On the other hand, a control unit (PCU: power control unit) 64 for transmitting electric power supplied from the power supply units B and J to the motor M is arranged at the front end portion of the rear vehicle body BR. At the lower end of the battery B, a battery lower cover 30 is arranged as a cover member for covering the terminals on the vehicle body side.

A loading platform 19 of the rear vehicle body BR is provided with a narrow pipe-shaped stopper 18 for preventing the load from slipping. A loading platform 19 made of thin plate-like synthetic resin or the like is arranged on the upper part of the rear body frame 70, and a rear fender 17 is fixed to the lower part of the rear body frame 70 to cover the upper part of the rear wheel WR. . The loading platform 19 is supported by a loading platform frame 32 that is fixed to a rear vehicle body frame 70 and made of a metal round pipe material. A loading platform frame cover 20 is provided at the front end of the loading platform 19 to cover the portion of the loading platform frame 32 that stands in an arch shape. A storage portion 23 suitable for storing a plate-shaped member 21 such as a notebook or a binder is provided on the front side surface of the carrier frame cover 20 . A left electrical component cover 25 is attached in front of the rear fender 17 on the left side of the vehicle body. A tail lamp 27, a pair of left and right rear flasher lamps 28, and a license plate holder 26 are fixed to a rear end portion of a rear vehicle body frame 70 mainly made of a metal square pipe material.

FIG. 4 is a perspective view of the vehicle body frame F that constitutes the front vehicle body BF. The vehicle body frame F, which is mainly made of a metal round pipe material, includes a down frame F3 extending rearward and downward from a head pipe F2, and left and right sides connected to both side surfaces of the down frame F3 and extending downward and curving rearward. It includes a pair of curved frames F6 and a pair of left and right floor frames F4 connected to the curved frames F6 and extending rearward. The down frame F3 at the center in the vehicle width direction is curved rearward at its lower end and connected to a gusset F7 fixed to a pair of left and right floor frames F4.

A long low-floor support stay 33 that supports the low-floor 12 is bridged over the upper part of the floor frame F4 behind the gusset F7. A pair of left and right front battery case support stays 34 and rear battery case support stays 37 that support the battery case 29 from below are attached to the rear of the low-floor floor support stay 33 .

A cross frame F8 that connects the left and right floor frames F4 in the vehicle width direction is disposed inside the rear battery case support stay 37. A rocking device is provided below the cross frame F8. A rear side stay 38 is provided to support the position of the rear side of 50 . On the other hand, a pair of left and right front stays 35 that support the front portion of the rocking device 50 are provided below the front battery case support stay 34 .

FIG. 5 is a perspective view of the rocking device 50. FIG. This figure shows the state seen from the right rear upper side. A rocking device 50 having a metallic casing pivotally supports a rocking shaft 60 made of metal fixed to the rear vehicle body BR, and applies a biasing force to return the rocking shaft 60 to a neutral position. It is a structure with a built-in biasing mechanism. The swing shaft 60 is fixed to the rear vehicle body BR by two bolts 61 and nuts 62 penetrating in the vehicle width direction.

Left and right divided front support portions 51L and 51R are provided at the front end portion of the rocking device 50, and a rear support portion erected upward is provided at the center of the rocking device 50 in the vehicle width direction near the rear. A portion 55 is provided. The front support portions 51L and 51R are fixed to the front stay 35 (see FIG. 4) provided on the vehicle body frame F of the front vehicle body BF using bolts 53, collar members 52 and nuts . The rear support portion 55 is fixed to the rear stay 38 (see FIG. 4) provided on the body frame F using bolts 56 and nuts 57 . A flat side surface 58 is formed on the right side of the swing device 50 in the vehicle width direction.

FIG. 6 is a left side view of the rear vehicle body BR. This drawing shows a state in which the front vehicle body BF is removed while the rocking device 50 is fixed to the rear vehicle body BR. A through hole 51a through which the bolt 53 is passed is formed in the front side support portions 51L and 51R of the swing device 50. As shown in FIG. Further, a through hole 55a through which a bolt 56 is passed is formed in the rear support portion 55 of the rocking device 50. As shown in FIG.

In this embodiment, the electric power of the battery B is once sent to the junction box J, which is a wiring terminal, and then sent to the rear vehicle body BR by high-voltage harnesses H1 and H2 extending from the junction box J. The high-voltage harnesses H1 and H2 extending downward and forward from the junction box J are curved to make a U-turn at the curved portion C located in front of the front side support portions 51L and 51R, and then pass through the right side of the swing device 50 to the rear. routed towards. It should be noted that the junction box J as a power supply device may be eliminated, and power may be supplied directly from the battery B to the rear vehicle body BR.

The loading platform 19 has a flat plate portion 19a on which a load is placed, and an upright portion 19b extending upward from the front end of the flat plate portion 19a. The loading platform frame cover 20 is configured to simultaneously cover the arch portion of the loading platform frame 32 and the standing portion 19b of the loading platform 19 .

FIG. 7 is a perspective view of the rear vehicle body BR. As described above, the storage portion 23 is provided in the front portion of the loading platform frame cover 20 . A control device 64 for controlling the electric power supplied to the motor M is arranged below the housing portion 23 so that a plurality of cooling fins are exposed to the front of the vehicle body. A left electrical component cover 25 and a right electrical component cover 63 are arranged on the left and right sides of the control device 64 .

8 is a perspective view of the loading platform frame cover 20. FIG. 9 is a plan view of the loading platform 19. FIG. A loading platform frame cover 20 made of a thin plate member made of synthetic resin is formed with a through hole 20a forming a storage portion 23. It is configured by the recess 19c. A slit 19d through which a loading platform frame 32 erected above the vehicle body passes is formed behind the recess 19c. The flat plate portion 19a of the loading platform 19 is formed with a total of six through holes 19e through which the thin pipe-shaped stoppers 18 are passed.

FIG. 10 is a perspective view of the rear body frame 70 that supports the loading platform 19. As shown in FIG. FIG. 11 is a perspective view of the rear vehicle body BR with exterior parts removed, and FIG. 12 is a perspective view of the rear vehicle body BR. FIG. 11 shows the state seen from the left front upper side, and FIG. 12 shows the state seen from the right front upper side.

The rear vehicle body frame 70 is mainly configured by connecting a pair of left and right main frames 71 made of metal square pipes with a plurality of cross pipes or the like oriented in the vehicle width direction. A through-hole 74 through which the pivot 24 of the swing arm 16 passes is formed in the front end portion of the main frame 71 that is curved forward and downward. A square first cross pipe 72 that connects the left and right main frames 71 is provided above the through hole 74 . A cylindrical collar 73 through which the pivot 24 is passed is fixed to the lower portion of the first cross pipe 72 . On the other hand, a pair of left and right fixing plates 75 for fixing the swing shaft 60 are attached to the rear portion of the first cross pipe 72 . A through hole 76 through which the bolt 61 is passed is formed in the fixed plate 75 . A lower support plate 77 for supporting the lower portion of the control device 64 is attached to the upper portion of the first cross pipe 72 .

A second cross pipe 78 made of a round pipe is provided above the first cross pipe 72 and near the portion where the main frame 71 curves backward. A pair of left and right upper support plates 79 for supporting the upper portion of the control device 64 are attached to the second cross pipe 78 . A plate-like stay 81 for fixing a down regulator 86 is attached behind the second cross pipe 78 and inside the right main frame 71 . A pair of left and right front box-shaped stays 80 for supporting the front side of the loading platform frame 32 are provided above the plate-shaped stays 81 .

A third cross pipe 82 that connects the left and right main frames 71 is provided at a rear position of the front box-shaped stay 80 . In the vicinity of the third cross pipe 82 , a rear cushion support portion 83 that supports the upper end portion of the rear cushion 88 is attached to the lower surfaces of the left and right main frames 71 . A stabilizer stay 84 for supporting a stabilizer for keeping the cargo bed 19 horizontal is attached to the rear of the left rear cushion support portion 83 . A long rear box-shaped stay 85 is attached to support the rear side of the.

11 and 12, a high voltage harness H1 extending from junction box J (see FIG. 6) is connected to the left side of control device 64. As shown in FIG. This connecting portion is covered with a left electrical component cover 25 . Power supply to the power unit 90 is performed by a three-phase harness 89 extending from a wiring connector 64 a provided on the upper portion of the control device 64 . A high voltage harness H2 extending from the junction box J is connected to a down regulator 86 arranged behind the control device 64 .

The loading platform frame 32 made of a round pipe material includes a substantially square outer frame portion 32b that supports the outer edge of the loading platform 19, an erecting portion 32a that stands in an arch shape from a position near the front of the outer frame portion 32b, It includes left and right connecting portions 32c that connect the left and right standing portions 32a in the vehicle width direction, and a pair of left and right connecting portions 32d that connect the left and right connecting portions 32c and the outer frame portion 32b. Electrical components such as a low-voltage sub-battery 87 and a fuse box are arranged inside the right electrical component cover 63 .

FIG. 13 is a partially enlarged left side view of the straddle-type electric tricycle 1 with exterior parts removed. This figure shows a state in which the left rear wheel WR is removed and the brake drum 91 is exposed. A power unit 90 that accommodates a motor M, a differential gear, etc. and supports the rear wheel WR is attached to a pair of left and right swing arms 16 that are swingably supported by a pivot 24 . A lower end portion of a rear cushion 88 is attached to the rear end portion of the swing arm 16 via a swing shaft 16a, and an upper end portion of the rear cushion 88 is attached to the rear cushion support portion 83 via a swing shaft 83a. It is attached. A stabilizer 92 connected to a power unit 90 is fixed to the stabilizer stay 84 .

Round pipe-shaped guard frames 95 and 96 are arranged below the battery case 29 so as to surround the battery B. As shown in FIG. The junction box J is fixed to a guard frame 95 positioned behind the battery B. As shown in FIG. The control device 64 is fixed to the rear body frame 70 so as to face the junction box J while being inclined rearward.

FIG. 14 is a block diagram showing the connection relationship between high voltage harnesses H1 and H2. Electric power of the two batteries B is sent to the junction box J via a harness (not shown). A high-voltage harness H1 extending from the junction box J is connected to the control device 64, and a three-phase harness 89 extending from the control device 64 is connected to the motor M. On the other hand, the high voltage harness H2 extending from the junction box J is connected to the down regulator 86, and power is supplied from the down regulator 86 to the sub-battery 87. The high-voltage harness H1 has a function of supplying power to the control device 64 and returning power generated by regenerative power generation of the motor M to the battery B side.

FIG. 15 is a plan view of the rear vehicle body BR with exterior parts removed. The rocking device 50 is arranged at the center in the vehicle width direction so that the axis of the rocking shaft 60 overlaps with the center line O of the vehicle body. A motor M built in the power unit 90 is offset to the left side in the vehicle width direction with respect to the center line O of the vehicle body. On the other hand, the control device 64 is offset to the right side in the vehicle width direction with respect to the center line O of the vehicle body. Further, the sub-battery 87 is arranged on the right side of the control device 64, and the down regulator 86 is arranged offset to the right side in the vehicle width direction with respect to the center line O of the vehicle body. In this embodiment, the control device 64, the sub-battery 87 and the down regulator 86 are arranged on the right side in the vehicle width direction in response to the fact that the heavy motor M is offset to the left side in the vehicle width direction. By arranging it on the left and right, the weight balance in the left and right direction is adjusted. Further, by arranging the control device 64 offset to the right side, it becomes easy to extend the harness from the left side of the control device 64 .

FIG. 16 is a partially enlarged right side view of the straddle-type electric tricycle 1 with the exterior parts removed. As described above, the guard frames 95, 96 and 97 made of round pipe material are arranged around the battery B, and the junction box J is fixed to the guard frame 95 on the rear side. On the other hand, a contactor 98 is fixed to the front guard frame 97, and the lower end of the front guard frame 97 is fixed to the front battery case support stay 34 provided on the floor frame F4.

The high-voltage harnesses H1 and H2 extending from the junction box J are guided forward through below the battery B, and then make a U-turn at a curved portion C provided in front of the swing device 50 to make a U-turn. to the right of the At a position behind the curved portion C, the harness H3 that supplies electric power to the electrical components of the front vehicle body BF joins to form three harnesses, which pass through the right side of the rocking device 50 and are guided rearward.

A right battery lower cover 30R is arranged below the battery B on the right side in the vehicle width direction. A plate-like extension 30a extending downward is provided at the lower portion of the right battery lower cover 30R, and protects the three harnesses H1, H2, and H3 passing through the right side of the rocking device 50 from flying stones, external force, and the like. configured to allow

As described above, the rocking device 50 is fixed to the lower portion of the floor frame F4, and the front support portions 51L and 51R of the rocking device 50 are arranged at positions equivalent to the front end of the battery B in the longitudinal direction of the vehicle body. It is As a result, the swing device 50 is arranged below the battery B, compared to a structure in which the swing device is attached to the rear end of the vehicle body frame, for example, thereby reducing the longitudinal dimension of the front vehicle body and mass. It is possible to concentrate on

The vehicle body side terminal 99 is covered from below by the left and right battery lower covers 30L and 30R, and the battery lower covers 30L and 30R and the rocking device 50 are configured to overlap each other when viewed from the side of the vehicle body. there is As a result, the rocking device 50 is brought closer to the lower surface of the front vehicle body BF, and the vertical dimension of the front vehicle body BF can be reduced.

17 is a bottom view of the straddle-type electric tricycle 1 of FIG. 16. FIG. A vehicle body side terminal 99 for electrically connecting the battery B and the vehicle body is arranged outside in the vehicle width direction in alignment with the position of the battery side terminal (see FIGS. 18 and 19). The left and right lower battery covers 30L and 30R have a function of covering the vehicle body side terminal 99 from below to protect the terminal. The rocking device 50 positioned at the center in the vehicle width direction is disposed between the pair of left and right vehicle body side terminals 99 in a plan view of the vehicle body. As a result, by disposing the rocking device 50 using the space between the left and right vehicle body terminals 99, the rocking device 50 can be arranged closer to the front vehicle body side. It becomes easier to reduce the dimension in the direction.

Also, the floor frame F4 is arranged between the pair of left and right vehicle body terminals 99, and the rocking device 50 is arranged between the pair of left and right floor frames F4. As a result, the floor frame F4 is accommodated between the left and right vehicle body terminals, so that the dimension of the front vehicle body BF in the vehicle width direction can be reduced. Further, the vertical dimension of the front vehicle body BF can be reduced by arranging the rocking device 50 between the left and right floor frames F4.

As described above, the vehicle-body-side terminal 99 corresponding to the battery-side terminal is arranged at a position closer to the outside of the battery B in the vehicle width direction. As a result, the vehicle body side terminals 99 are spaced apart in the vehicle width direction, which increases the space for accommodating the rocking device 50 and facilitates disposing the rocking device 50 at the center in the vehicle width direction.

18 is a cross-sectional view taken along the line XVIII--XVIII of FIG. 3. FIG. 19 is a cross-sectional view along line XIX-XIX of FIG. As described above, the battery-side terminals 100 embedded in the bottom portions of the left and right batteries B are arranged at positions on the outer side in the vehicle width direction. placed near. The vehicle body side terminal 99 is moved up and down by a pulling member 99a that moves up and down by lever operation, and attachment/detachment operation with respect to the battery side terminal 100 is performed.

The floor frame F4 is housed between the left and right lower battery covers 30L and 30R, and the upper portion of the rocking device 50 is housed between the floor frames F4. As a result, the longitudinal dimension of the front vehicle body BF can be reduced and the mass can be concentrated.

The high-voltage harnesses H1 and H2 are routed between the left and right vehicle body side terminals 99 at a portion from the junction box J toward the curved portion C. As shown in FIG. As a result, the space between the left and right vehicle body side terminals 99 can be used to route the high voltage harnesses H1 and H2. The high-voltage harnesses H1 and H2 are routed in the front-rear direction through a cross frame F8 that connects the battery B and the left and right floor frames F4. Furthermore, the high-voltage harnesses H1 and H2 are routed between the battery B and the rocking device 50, so that the high-voltage harnesses H1 and H2 can be protected from flying stones, external force, and the like.

Referring to FIG. 19, swing device 50 is provided with shaft portion 50a to which a biasing mechanism for returning swing shaft 60 to the neutral position is attached. Harnesses H1, H2, and H3 are attached by clamps HC to a side surface 58 of the rocking device 50 located on the right side of the shaft portion 50a in the vehicle width direction. The right sides of the harnesses H1, H2, H3 are protected by the extending portion 30a extending downward from the right battery lower cover 30R.

20 is a right side view showing the positional relationship between the battery B and the rocking device 50. FIG. This figure shows a state in which the body frame F is removed for the sake of explanation. The high-voltage harnesses H1 and H2 are provided with a curved portion C that curves in a U-shape with the front side convex at a position in front of the swing device 50 . This makes it easy to wire the high-voltage harnesses H1 and H2 linearly along the swing shaft 60 in the vicinity of the swing device 50 . As a result, even when the front vehicle body BF rocks in the roll direction with respect to the rear vehicle body BR, the high voltage harnesses H1 and H2 are less likely to be affected by the rocking motion.

21 is a perspective view showing the positional relationship between the battery B and the rocking device 50. FIG. This figure shows the bottom of the straddle-type electric tricycle 1 viewed from the lower right rear of the vehicle. As described above, the pair of left and right battery side terminals 100 and vehicle body side terminals 99 are arranged at positions on the outer side in the vehicle width direction. As a result, it becomes easy to secure the installation space for the rocking device 50 and to arrange the rocking device 50 at the center in the vehicle width direction. The high-voltage harnesses H1 and H2 extending forward and downward from the junction box J are guided forward through below the battery B at the center in the vehicle width direction, and are greatly bent at a curved portion C provided in front of the rocking device 50. It is led to the side 58 of the rocking device 50 . Harnesses H1, H2, and H3, which are substantially straight on the sides of the swinging device 50, are fixed to the swinging device 50 by clamps HC.

22 is a left side view showing the positional relationship between the battery B and the rocking device 50. FIG. This figure shows a state in which the body frame F is removed for the sake of explanation. The rocking device 50 is arranged such that its rear end overlaps the control device 64 in the front-rear direction. As a result, the longitudinal dimension of the vehicle can be reduced, and the mass can be concentrated.

The high voltage harness H1 extends from the left side of the control device 64 in the vehicle width direction and is fixed to the right side surface 58 of the rocking device 50 . Furthermore, after extending from the down regulator 86, the high voltage harness H2 is routed in the same manner as the high voltage harness H1. As a result, a portion in which the high-voltage harnesses H1 and H2 are oriented substantially in the vehicle width direction can be formed between the control device 64 and the rocking device 50, and even if the front side vehicle body BF rocks, the high-voltage harness H1 can be maintained. , H2 are less likely to be twisted, and a slight bending of the high-voltage harnesses H1 and H2 makes it possible to absorb the swinging motion of the front vehicle body, thereby enhancing durability.

Further, the rear surface 15a of the rear cover 15 covering the rear portion of the front vehicle body BF is tilted rearward so that the upper portion thereof is located rearward from the lower portion thereof. It is installed tilted backwards. As a result, it is possible to shorten the longitudinal length of the vehicle while ensuring the space between the rear cover 15 and the control device 64 . Further, the control device 64 can be effectively cooled by the running wind flowing along the surface of the rear cover 15 .

In addition, the form of the straddle-type electric tricycle, the shape and structure of the front and rear vehicle bodies, the configuration of the battery and the motor, the shape and arrangement of the control device, the shape and structure of the body frame, the structure and arrangement of the rocking device, the high voltage The wiring method of the harness is not limited to the above embodiment, and various modifications are possible.

REFERENCE SIGNS LIST 1 saddle-type electric tricycle 15 rear cover 15a rear surface of rear cover 19 carrier 22 seat 30L, 30R lower battery cover (cover member) 30a extension 50 rocking Device 51L, 51R front support portion 55 rear support portion 58 side surface of rocking device 64 control device 70 rear vehicle body frame 90 power unit 99 vehicle body terminal 100 battery side terminal, B... battery, B... battery (power supply device), J... junction box (power supply device), M... motor, F... body frame, F2... head pipe, F3... down frame, F4... floor frame, BF... Front side body, BR... Rear side body, WF... Front wheel, WR... Rear wheel, H1, H2... High voltage harness, C... Curved part, O... Body center line

Claims (5)

A front vehicle body (BF) that supports a single front wheel (WF), a rear vehicle body (BR) that supports rear wheels (WR) as a pair of left and right driving wheels, and a rear vehicle body (WR) that supports the rear wheels (WR). A power unit (90) that houses a motor (M), and a rocking device (50) that is attached to the front body (BF) and pivotally supports the rear body (BR) so that it can rock in the roll direction. In the straddle-type electric tricycle (1),
two batteries (B) stored side by side in the vehicle width direction below a seat (22) fixed to the front vehicle body (BF);
A pair of left and right vehicle body side terminals (99) connected from below to battery side terminals (100) provided on the bottoms of the two batteries (B) respectively,
The battery (B) is housed in the front vehicle body (BF),
The rocking device (50) is disposed between the pair of left and right vehicle body terminals (99) in plan view of the vehicle body ,
The vehicle-body-side terminals (99) are covered from below by cover members (30L, 30R),
A straddle-type electric tricycle , wherein the cover members (30L, 30R) and the rocking device (50) overlap each other when viewed from the side of the vehicle body . The straddle-type electric three-wheeled vehicle according to claim 1, wherein the battery-side terminal (100) is arranged at a position closer to the outside in the vehicle width direction of the battery (B). The rocking device (50) is fixed to the vehicle body frame (F) of the front vehicle body (BF) by front support portions (51L, 51R) and a rear support portion (55),
3. The straddle-type electric power generator according to claim 1 or 2, wherein the front side support portions (51L, 51R) are disposed at positions equivalent to the front end of the battery (B) in the longitudinal direction of the vehicle body. Tricycle. A vehicle body frame (F) constituting the front vehicle body (BF) includes a head pipe (F2), a down frame (F3) extending downward from the head pipe (F2), and the down frame (F3) connected to the head pipe (F2). a pair of left and right floor frames (F4) extending rearward,
The floor frame (F4) is disposed between the pair of left and right vehicle body terminals (99),
The straddle-type electric tricycle according to any one of claims 1 to 3 , wherein the rocking device (50) is provided between the pair of left and right floor frames (F4). A controller (64) for the motor (M) is supported by the rear vehicle body (BR),
The straddle-type electric tricycle according to any one of claims 1 to 4 , wherein the rear end of the rocking device (50) overlaps the control device (64) in the longitudinal direction.

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