JPWO2019194000A1 - Electric vehicle - Google Patents

Abstract

The vehicle body front structure (3), the vehicle body rear structure (5) separated from the vehicle body front structure (3), the vehicle body front structure (3), and the vehicle body rear structure (5) are A rotating mechanism (50) that is connected so as to be relatively swingable around an axis (C1) facing the front-rear direction of the vehicle, an electric motor (30) for running the vehicle, and a battery that supplies power to the electric motor (30). 100), and at least one of the vehicle body front structure (3) and the vehicle body rear structure (5) is a battery storage that detachably stores the battery (100). A portion (76) is provided, and the battery housing portion (76) is provided with an opening (77) that allows the battery (100) to be inserted and removed, and the vehicle body front structure (3) and the vehicle body rear structure (5). ) Is provided with an insertion / removal restriction unit (9a) that is arranged to face the opening (77) of the battery storage unit (76) and can regulate the insertion / removal of the battery (100).

Description

The present invention relates to an electric vehicle.
The present application claims priority based on Japanese Patent Application No. 2018-071104 filed in Japan on April 2, 2018, the contents of which are incorporated herein by reference.

As a conventional electric vehicle, for example, Patent Document 1 discloses an electric vehicle in which the front vehicle body can swing in the roll direction (rotation direction around an axis facing the vehicle front-rear direction) with respect to the rear vehicle body. In this electric vehicle, a fixed bracket 3 is supported by a pivot 51 erected between the left and right body frames 1 so as to be vertically swingable, and the fixed bracket 3 is rotated about an axis facing the front-rear direction via a ball bearing 53. A swing shaft 4 that is possibly supported, a movable bracket 5 fixed to the rear portion of the swing shaft 4, and an upper support frame 55 and a lower support frame 56 (battery support frame 9) welded to the movable bracket 5 are provided. ing. A plurality of batteries 10 are mounted on the front tray 62 and the rear tray 65 fixed to the upper support frame 55 and the lower support frame 56. The battery support frame 9 and the power unit P are connected by a pair of left and right rear cushions 11. A pair of left and right rear wheels Wr are supported at the rear of the power unit P. The battery 10 is mounted on the spring of the rear suspension.

Japanese Patent No. 3189977

By the way, in the above-mentioned conventional technique, the battery 10 is covered with the battery support frame 9 (upper support frame 55, lower support frame 56, connecting frame 57, reinforcing plate 58, front support frame 59 and reinforcing pipes 60, 61). ing. However, the battery 10 is exposed to the outside. In the above-mentioned conventional technique, the configuration for restricting the attachment / detachment of the battery 10 is not disclosed, and there is room for improvement from the viewpoint of theft prevention.

Therefore, an object of the present invention is to improve the anti-theft property of a battery in an electric vehicle in which the front and rear vehicle bodies can rotate relative to each other in the roll direction.

As a means for solving the above problems, the first aspect of the present invention is a vehicle body front structure (3), a vehicle body rear structure (5) separated from the vehicle body front structure (3), and the vehicle body front. A rotating mechanism (50) that connects the partial structure (3) and the rear body structure (5) so as to be relatively swingable around an axis (C1) facing the front-rear direction of the vehicle, and an electric motor (30) for traveling the vehicle. ), And a battery (100) for supplying power to the electric motor (30), which is an electric vehicle (1), at least one of the vehicle body front structure (3) and the vehicle body rear structure (5). One is provided with a battery storage unit (76) for detachably storing the battery (100), and the battery storage unit (76) is provided with an opening (77) for allowing the battery (100) to be inserted and removed. At least the other of the vehicle body front structure (3) and the vehicle body rear structure (5) is arranged to face the opening (77) of the battery storage portion (76), and the insertion / removal of the battery (100) can be regulated. It is equipped with an insertion / removal control unit (9a).
In the second aspect of the present invention, in the first aspect, the rotation mechanism (50) is around the axis (C1) of the vehicle body front structure (3) and the vehicle body rear structure (5). It is provided with a swing control unit (93) that regulates relative swing based on the operation of the main switch.
In a third aspect of the present invention, in the second aspect, the vehicle body rear structure (5) includes a pair of left and right rear wheels (4a, 4b) that maintain a ground contact state, and the battery accommodating portion (76). ) Is provided in the vehicle body rear structure (5), the insertion / removal restricting portion (9a) is provided in the vehicle body front structure (3), and the vehicle body front structure (3) is provided in the vehicle body. In the swinging state (B) that swings with respect to the rear structure (5), the battery (100) is inserted and removed by retracting from the position facing the opening (77) of the battery housing (76). Tolerate.
A fourth aspect of the present invention is that in any one of the first to third aspects, the vehicle body rear structure (5) is provided with at least a part above the rear wheels (4a, 4b). The loading platform (75), the battery accommodating portion (76) provided below the loading platform (75), and the opening (77) in the battery accommodating portion (76) that allows the battery (100) to be inserted and removed are opened and closed. It is provided with an opening / closing portion (78).
In a fifth aspect of the present invention, in the fourth aspect, the vehicle body rear structure (5) includes a charger (125) behind the battery accommodating portion (76).
In the sixth aspect of the present invention, in the fourth or fifth aspect, the battery accommodating portion (76) inserts the battery (100) in an inclined direction (C41, C42) inclined with respect to the vertical direction. It is equipped with a battery case (100A) that supports it so that it can be removed.
A seventh aspect of the present invention is that in any one of the fourth to sixth aspects, the vehicle body rear structure (5) includes a rear body frame (21) and rear wheels (4a, 4b). The rear cushion (28) includes a swing arm (40) that supports the swing arm (40) so as to be able to swing up and down, and a rear cushion (28) that connects the rear body frame (21) and the swing arm (40). At least partly overlaps with the battery (100) in the front-rear direction behind the battery (100), or at least partly overlaps with the battery (100) in the side view from the side of the battery (100). It is arranged like this.
In the eighth aspect of the present invention, in any one of the fourth to seventh aspects, the vehicle body rear structure (5) swings to support the rear wheels (4a, 4b) so as to be swingable up and down. The electric motor (30) is provided at a position where the arm (40) is provided and the rear wheels (4a, 4b) of the swing arm (40) are avoided in a side view.
In the ninth aspect of the present invention, in the eighth aspect, the electric motor (30) has a swing axis (41) rather than a central portion (40a) in the length direction (C2) of the swing arm (40). It is located on the side.
In a tenth aspect of the present invention, in the eighth or ninth aspect, the electric motor (30) is arranged above the swing arm (40).

According to the first aspect, the battery mounted on at least one of the vehicle body front structure and the vehicle body rear structure accommodates the insertion / removal restricting portion provided on at least the other of the vehicle body front structure and the vehicle body rear structure. By arranging the battery so as to face the opening of the portion, it is possible to switch between a state in which the battery can be attached and detached and a state in which the battery cannot be attached and detached by using a rotating mechanism. Can be done.
According to the second aspect, it is possible to maintain the battery in a non-detachable state based on the operation of the main switch by using the swing regulating portion that regulates the relative swing of the vehicle body front structure and the vehicle body rear structure. Therefore, the swing control unit can be used as a lock for preventing theft of the battery, and the convenience can be improved while suppressing the increase in the configuration.
According to the third aspect, the swing of the vehicle body front structure to be banked during turning can be locked by using the swing restricting portion, and the swing regulating portion allows the vehicle body front structure to be locked. By locking the swing of the battery, it is possible to use an anti-theft lock that regulates the insertion and removal of the battery. That is, the anti-theft lock for the battery can be realized with a simple configuration as compared with the case where the anti-theft lock structure for the battery is provided exclusively.
According to the fourth aspect, by providing the battery storage portion below the loading platform, the height at which the battery is lifted when the battery is attached / detached can be suppressed, and the attachment / detachment of the heavy battery can be facilitated. it can. Further, by providing the opening / closing portion in the opening of the battery compartment, it is possible to prevent foreign matter from entering the battery compartment and further improve the anti-theft property of the battery.
According to the fifth aspect, by arranging the charger behind the battery storage portion in the vehicle body rear structure, the charger is arranged near the rear end of the entire vehicle body, so that access to the charger is easy. become. Since the battery, which is a high-voltage component and a heavy object, is relatively arranged closer to the center of the front and rear of the entire vehicle body, the influence of disturbance from the rear can be suppressed and contribute to the concentration of mass.
According to the sixth aspect, as compared with the case where the battery is inserted and removed in the vertical direction, it is easier to lift the heavy battery and the battery case can receive at least a part of the battery weight. It is possible to facilitate the work of attaching and detaching the battery.
According to the seventh aspect, the rear cushion of the rear wheel suspension device can be utilized to suppress the influence of the disturbance from the rear or the side on the battery and improve the protection property of the battery.
According to the eighth aspect, the access to the electric motor from the side of the vehicle becomes easier as compared with the case where the electric motor is arranged so as to overlap the rear wheels in the side view like the in-wheel motor, and the electric motor It is possible to improve the ease of assembly and maintainability.
According to the ninth aspect, the operability of the swing arm can be improved by providing the electric motor, which is a heavy object, at a position close to the swing axis in the swing arm.
According to the tenth aspect, by providing the electric motor on the upper part of the swing arm, it is possible to suppress disturbance and water reception from the road surface side with respect to the electric motor.

It is a left side view of the electric vehicle in embodiment of this invention. It is a left side view of the rear part of the vehicle body of the electric vehicle. It is a rear view of the said electric vehicle. It is a perspective view of the rear body of the electric vehicle. It is a perspective view of the state in which the rear body cover is removed from the rear body. It is a block diagram of the main electrical component of the electric vehicle. It is a front view of the rear part of the vehicle body when the front vehicle body of the electric vehicle is in an upright state. It is a front view of the rear part of the vehicle body when the front vehicle body of the electric vehicle is in a swinging state. It is a top view which includes a partial cross section of the rotation mechanism of the electric vehicle. 9 is a cross-sectional view taken along the line XX of FIG. It is a left side view corresponding to FIG. 2 which shows the modification of the embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Unless otherwise specified, the orientations of the front, rear, left, and right directions in the following description shall be the same as the directions in the vehicle described below. Further, in the appropriate place in the figure used in the following description, an arrow FR indicating the front of the vehicle, an arrow LH indicating the left side of the vehicle, and an arrow UP indicating the upper part of the vehicle are shown.

(Whole vehicle)
As shown in FIGS. 1 to 3, in the electric vehicle 1 of the present embodiment, one front wheel 2 which is a steering wheel is supported by a front vehicle body (vehicle body front structure) 3. The electric vehicle 1 supports a pair of left and right rear wheels 4a and 4b, which are driving wheels, on a rear vehicle body (vehicle body rear structure) 5. The electric vehicle 1 swings left and right (rolling motion) the front vehicle body (swinging side vehicle body) 3 on which the occupant rides with respect to the rear vehicle body (non-swinging side vehicle body) 5 with the left and right rear wheels 4a and 4b grounded. Make it possible. The electric vehicle 1 is configured as a swing-type electric tricycle.

The front vehicle body 3 includes a bar handle 6 for steering the front wheels and a seat 7 for seating an occupant. The front vehicle body 3 has a space 8 straddling between the bar handle 6 and the seat 7. The front vehicle body 3 is provided with a low floor 9 below the straddling space 8.
The front vehicle body 3 and the rear vehicle body 5 are connected to each other via a rotating mechanism (rolling joint) 50. In the figure, reference numeral C1 indicates a rotation axis extending in the vehicle front-rear direction in the rotation mechanism 50, line CL1 indicates a left-right center line of the front vehicle body 3, and line CL2 indicates a left-right center line of the rear vehicle body 5.

(Front body)
With reference to FIG. 1, the front vehicle body 3 includes a front vehicle body frame 11. The front body frame 11 includes a single front frame 14 that extends downward from the rear side of the head pipe 12 and then curves rearward, and a pair of left and right front frame 14 that branches left and right from both sides of the curved portion of the front frame 14 and extends rearward. The lower frame 15 is provided with a pair of left and right rear frames 16 extending obliquely rearward and upward from the rear end portions of the left and right lower frames 15. The rear end of the front frame 14 is coupled to the middle of the lower cross frame 17 that extends between the rear of the left and right lower frames 15. For example, a bottom link type front wheel suspension device 13 is steerably supported on the head pipe 12. The front wheel 2 is supported at the lower end of the front wheel suspension device 13.

Behind the lower cross frame 17, a rear lower cross frame 18 extending between the lower parts of the left and right rear frames 16 is arranged. The front structure 51 of the rotating mechanism 50 is fixedly supported on the lower cross frame 17 and the rear lower cross frame 18.
When the electric vehicle 1 is turning, the front vehicle body 3 swings (banks) in the turning direction with respect to the vehicle body 5 after the left and right rear wheels 4a and 4b are grounded on the road surface G. .. As a result, the front vehicle body 3 causes the front wheels 2, which are steering wheels, to have a steering angle.

The entire front vehicle body 3 including the front vehicle body frame 11 is covered with the front vehicle body cover 60. The front body cover 60 includes a front cover 61 that covers the periphery of the head pipe 12 and the front frame 14 from the front, an inner cover 62 that covers the periphery of the head pipe 12 and the front frame 14 from the rear, and a lower end portion of the inner cover 62. A floor board 63 connected to the rear of the floor board 63, a rear inclined board 64 inclined diagonally upward and rearward behind the floor board 63, and a seat under cover 65 extending to the lower part of the rising seat 7 at the left and right inner portions of the rear inclined board 64. And have. Reference numeral 61a in the figure indicates a pair of left and right rearview mirrors supported on both sides of the upper end portion of the front cover 61.

The floor board 63 constitutes a low-floor floor 9 together with the left and right lower frames 15 and the like. The rear inclined board 64, together with the left and right rear frames 16 and the like, constitutes a rear inclined portion 9a connected to the rear of the low floor floor 9. Behind the seat 7, a backrest 66 that forms a substantially vertical front surface stands up. The backrest 66 is supported by the upper ends of the left and right rear frames 16. The rear surface side of the backrest 66 constitutes a loading platform front wall portion 66b that stands above the front end portion of the loading platform 75 in the rear vehicle body 5. A pair of left and right columns 66a extend above the backrest 66. A windscreen 67 extends above the front cover 61. A roof 68 extending rearwardly is connected to the upper end of the windscreen 67. The rear end portion of the roof 68 is supported by the upper end portions of the left and right columns 66a.

(Rear body)
As shown in FIGS. 1 to 3, the rear vehicle body 5 includes a rear vehicle body frame 21 independent of the front vehicle body frame 11. The rear body frame 21 includes a second rear frame 22 extending diagonally rearward and upward from the upper part of the rotating mechanism 50, a rear upper frame 23 extending rearwardly curved from the upper end portion of the second rear frame 22, and a rear upper frame 23. A rear upper cross frame 24 that is coupled to the rear portion and extends in the left-right direction, an intermediate upper cross frame 24a that is coupled to the front portion of the rear upper frame 23 and extends in the left-right direction, and a lower end portion of the second rear frame 22. A second rear lower cross frame 25 extending in the left-right direction, a pair of left and right rear lower side frames 26 extending rearward from both the left and right sides of the second rear lower cross frame 25, and diagonally from the rear end of the left and right rear lower side frames 26. It is provided with a pair of left and right rear side frames 27 that are curved and extend rearward and upward. The left and right rear side frames 27 are connected to the left and right sides of the rear upper cross frame 24. The second rear frame 22 is substantially parallel to the rear frame 16 in a side view.

The rear structure 52 of the rotating mechanism 50 is fixedly supported on the lower portion of the second rear frame 22. At the rear end of the rear structure 52, the front end of the swing unit 40 is supported so as to be swingable up and down via a swing shaft (pivot shaft) 41 along (extending) in the left-right direction. For example, the lower ends of a pair of left and right rear cushions 28 are connected to the outer cylinder 42a of the rear wheel axle 42 provided at the rear of the swing unit 40 (see FIG. 3). The upper ends of the left and right rear cushions 28 are connected to the left and right sides of the rear upper cross frame 24, respectively. The rear end portion of the swing unit 40 is connected to and supported by the upper rear portion of the rear body frame 21 via the left and right rear cushions 28. The rear vehicle body 5 includes a swing unit 40, left and right rear cushions 28, and a rear wheel suspension device (rear suspension) 29 including a rear vehicle body frame 21.

With reference to FIG. 4, the entire rear vehicle body 5 including the rear vehicle body frame 21 is covered with the rear vehicle body cover 70. The rear body cover 70 includes a front wall portion 71 forming an inclined front surface substantially parallel to the second rear frame 22, an upper wall portion 72 extending substantially horizontally from the upper end portion of the front wall portion 71 to the rear, and an upper wall portion 72. A rear wall portion 73 extending downward from the rear end portion and a pair of left and right side wall portions 74 extending between the front wall portion 71 and the rear wall portion 73 are provided. Rear fenders 74a that cover the upper parts of the left and right rear wheels 4a and 4b are formed on the left and right side wall portions 74. The upper wall portion 72, together with the rear upper frame 23, the rear upper cross frame 24, the intermediate upper cross frame 24a, and the like, constitutes a loading platform 75 on the upper surface of the rear vehicle body 5 (which is also the upper surface of the storage portion 76). The front wall portion 71 is substantially parallel to the rear inclined portion 9a of the front vehicle body 3. The front wall portion 71 is arranged with a gap S1 (see FIG. 2) from the rear inclined portion 9a so as not to interfere with the rear inclined portion 9a when the front and rear vehicle bodies 3 and 5 swing relative to each other. For convenience of illustration, FIGS. 1 to 3 show only a part of the rear body cover 70.

(Swing unit)
With reference to FIGS. 1 to 3, the swing unit 40 is arranged between the left and right rear wheels 4a and 4b. The swing unit 40 is arranged so as to extend from the swing shaft 41 to the rear wheel axle 42 in a side view. The swing unit 40 is arranged so that the length direction is directed to the front-rear direction. The swing unit 40 extends along the axis C2 connecting the swing shaft 41 and the rear wheel axle 42 in a side view. Hereinafter, the direction along the axis C2 is referred to as the length direction (arm length direction) C2 of the swing unit 40.

The swing unit 40 is configured as a power unit including an electric motor 30 which is a drive source of the electric vehicle 1. The swing unit 40 includes a unit case 43 as a structure (swing arm) that supports the left and right rear wheels 4a and 4b so as to be able to swing up and down, an electric motor 30 housed in the front portion of the unit case 43, and a unit case 43. A differential mechanism 44 housed in the rear portion and a drive shaft 45 extending from the drive shaft of the electric motor 30 to the input portion of the differential mechanism 44 are provided. The unit case 43 includes a single arm portion 43a extending along the axis C2 between the swing shaft 41 and the rear wheel axle 42 in a side view. The arm portion 43a includes a motor case 43b that bulges up and down with respect to other portions at a portion that accommodates the electric motor 30.

A pair of left and right rear wheel axles (output shafts) 42 that support the left and right rear wheels 4a and 4b respectively extend on both left and right sides in the rear portion of the swing unit 40. The driving force of the single electric motor 30 is transmitted to the differential mechanism 44 via the drive shaft 45. The driving force transmitted to the differential mechanism 44 is appropriately distributed to the left and right rear wheel axles 42 to drive the left and right rear wheels 4a and 4b. On the left and right sides of the differential mechanism 44, outer cylinders 42a for accommodating the left and right rear wheel axles 42 extend.

(Rotating mechanism)
With reference to FIGS. 2, 9, and 10, the rotating mechanism 50 includes a front structure 51 and a rear structure 52 that can rotate relative to each other. A so-called Knighthard mechanism 55 is formed between the front structure 51 and the rear structure 52. The front structure 51 includes a front casing 51a that is fixedly supported by the front body frame 11. The rear structure 52 includes a rear support shaft 52a that is fixedly supported by the rear body frame 21. The front portion of the rear support shaft 52a is inserted into the front casing 51a along the axis C1 and is rotatably supported around the axis C1.

A pivot bracket 52b is integrally connected to the rear portion of the rear support shaft 52a that projects rearward from the front casing 51a. The pivot bracket 52b supports the front end portion of the swing unit 40 so as to be able to swing up and down. The front end portion of the unit case 43 of the swing unit 40 is connected to the pivot bracket 52b so as to be swingable up and down via a swing shaft 41 along the left-right direction. The front lower end portion of the rear body frame 21 is integrally connected to the rear support shaft 52a. The rear body frame 21 and thus the rear body frame 5 and the front body frame 11 and thus the front body 3 are connected so as to be relatively swingable at the center of the axis C1.

With reference to FIGS. 9 and 10, a Knighthardt cam 56 is integrally rotatably provided at a front portion of the rear support shaft 52a inserted into the front casing 51a. The Knighthard cam 56 has a substantially rhombus shape having concave four sides when viewed in the axial direction. A case portion 57 having a substantially rectangular shape in the axial direction is provided at a portion of the front casing 51a where the Knighthard cam 56 is inserted. For example, cylindrical night hull travers 58 are arranged at the four corners of the space in the case portion 57 in the axial direction. The night hull travers 58 are arranged so as to be substantially parallel to the case portion 57 in the axial direction. In each of the night hull travers 58, in the upright state A of the front vehicle body 3 (the state where the left and right center lines CL1 and CL2 of the front and rear vehicle bodies 3 and 5 coincide with each other in the front-rear direction view, see FIG. The four sides are in contact.

The rotation mechanism 50 includes a Knighthardt mechanism (damper mechanism) 55 that applies a non-linear restoring force (damping force) to the relative rotation of the front casing 51a and the rear support shaft 52a. Each night hull travers 58 exerts the following actions when the front vehicle body 3 swings from the upright state A and the front casing 51a and the rear support shaft 52a rotate relative to each other. Each Knighthal travers 58 is compressed by the Knighthard cams 56 at the four corners of the case portion 57 to generate a non-linear restoring force against the swing of the front vehicle body 3.

(Parking lock device)
With reference to FIGS. 1, 2, and 9, the electric vehicle 1 includes a parking lock device 90. The parking lock device 90 operates the swing lock mechanism 93 and the parking brake (parking lock mechanism 99) to regulate the swing of the front vehicle body 3 and the rotation of the rear wheels 4a and 4b.
The parking lock device 90 is provided on, for example, a parking lever 91 (see FIG. 1) arranged near the center of the left and right sides of the bar handle 6, a parking cable 92 extending from the parking lever 91 (see FIG. 9), and a rotating mechanism 50. The swing lock mechanism 93 (see FIG. 9) and the parking lock mechanism 99 (see FIG. 2) provided on the swing unit 40 are provided. The parking cable 92 is engaged with each of the swing lock mechanism 93 and the parking lock mechanism 99. In the parking lock device 90, when the parking lever 91 is operated, the swing lock mechanism 93 and the parking lock mechanism 99 are operated via the parking cable 92 to lock the swing and forward / backward movement of the vehicle body.

The parking lever 91 can be operated toward either the locked position or the unlocked position. At the locked position, the swing of the front vehicle body 3 and the rotation of the rear wheels 4a and 4b are restricted. At the unlocked position, the restrictions on the swing of the front vehicle body 3 and the rotation of the rear wheels 4a and 4b are released. The parking lever 91 can be operated when the main switch (not shown) of the electric vehicle 1 is on. If the main switch is turned off while the parking lever 91 is operated to the locked position, the parking lever 91 is mechanically locked, for example, and cannot be operated to the unlocked position. The parking lever 91 can be locked at the locked position. The parking lock device 90 can be locked in a locked state in which the swing of the front vehicle body 3 and the rotation of the rear wheels 4a and 4b are restricted.

The base end of the inner cable 92a in the parking cable 92 is engaged with the working end of the parking lever 91. The parking cable 92 extends rearward from the working end of the parking lever 91 through the lower part of the vehicle body, and the tip end side reaches the side of the rotating mechanism 50. On the side of the rotating mechanism 50, the inner cable 92a is engaged with the input end of the swing lock mechanism 93.

The parking cable 92 extends further rearward from the side of the rotating mechanism 50, and the tip end side reaches the side of the swing unit 40. On the side of the swing unit 40, the inner cable 92a is engaged with the input end of the parking lock mechanism 99. When the parking lever 91 is operated to the lock position, the inner cable 92a of the parking cable 92 is pulled to lock the swing lock mechanism 93 and lock the parking lock mechanism 99.

With reference to FIG. 9, in the rotation mechanism 50, an L-shaped space in a plan view is formed between the front casing 51a and the rear support shaft 52a. This space is formed so as to extend from the side of the front portion of the rear support shaft 52a to the front of the front end portion. A swing lock mechanism 93 is arranged in this space. On the side of the rear support shaft 52a, a front outer holding portion 51b is provided on the front wall of the front casing 51a. The front outer cable 51b holds the rear end of the front outer cable 92b on the parking lever 91 side of the parking cable 92. On the side of the rear support shaft 52a, a rear outer holding portion 51c is provided on the rear wall of the front casing 51a. The rear outer cable 51c holds the front end of the rear outer cable 92c on the parking lock mechanism 99 side of the parking cable 92. An intermediate portion of the inner cable 92a is inserted into the front casing 51a between the front and rear outer holding portions 51b and 51c.

In the front casing 51a, one end of the swing arm 94 is engaged with the inner cable 92a. The intermediate portion of the swing arm 94 in the length direction is swingably supported by a swing shaft 94a supported by the front casing 51a. The tip of the stopper pole 96 is connected to the other end of the swing arm 94 via a chain link 95. The base end portion of the stopper pole 96 is swingably supported by a swing shaft 96a supported by the front casing 51a. The tip end side of the stopper pole 96 extends forward of the front end portion of the rear support shaft 52a. A claw portion 96b facing the front end portion of the rear support shaft 52a is projected from the tip portion of the stopper pole 96. A stopper plate 97 is integrally rotatably provided at the front end of the rear support shaft 52a. The stopper plate 97 is provided in a fan shape centered on the axis C1 in the axial direction. On the outer peripheral portion of the stopper plate 97, a plurality of groove portions 97b to which the claw portion 96b of the stopper pole 96 can be engaged are formed so as to be arranged in the circumferential direction about the axis C1.

In such a configuration, when the inner cable 92a is pulled by the operation of the parking lever 91, the swing arm 94 of the swing lock mechanism 93 operates, and the claw portion 96b of the stopper pole 96 is set to any of the plurality of groove portions 97b of the stopper plate 97. Engage in the claw. As a result, the swing lock mechanism 93 is locked at the angle around the axis C1 of the groove portion 97b with which the claw portion 96b is engaged, and the rotation of the rear support shaft 52a with respect to the front casing 51a is restricted. That is, the rotation of the rear support shaft 52a with respect to the front casing 51a is regulated at an arbitrary angle within the angle range in which the plurality of groove portions 97b of the stopper plate 97 are formed. Therefore, the swing of the front vehicle body 3 with respect to the rear vehicle body 5 can be locked at an arbitrary swing angle in the angle range.

The inner cable 92a extends to the rear of the front casing 51a together with the rear outer cable 92c, and reaches the rear side of the swing unit 40. Similar to the swing lock mechanism 93, a parking lock mechanism 99 using a stopper pole and a stopper plate is configured in the gear case forming the rear portion of the swing unit 40. The inner cable 92a is engaged with the input end of the parking lock mechanism 99.
In such a configuration, when the inner cable 92a is pulled, the parking lock mechanism 99 is locked, and the rotation of the rear wheel axle 42 is restricted. As a result, the parking brake is activated in which the rotation of the rear wheels 4a and 4b is restricted, and the front-rear movement of the electric vehicle 1 is restricted.

(Electric motor)
With reference to FIG. 6, the electric motor 30 is driven by the power of the battery 100. The electric motor 30 is driven at a variable speed by, for example, VVVF (variable voltage variable frequency) control. The electric motor 30 is speed-shift controlled so as to have a continuously variable transmission, but the electric motor 30 is not limited to this. For example, the electric motor 30 may be speed-shift controlled so as to have a stepped transmission.

With reference to FIG. 2, the electric motor 30 is arranged in a so-called vertical position with the drive shaft directed in the front-rear direction of the vehicle. The middle line C3 in the figure shows the drive axis of the electric motor 30. The electric motor 30 (and the motor case 43b) is arranged at a position avoiding the rear wheels 4a and 4b in a side view. The motor case 43b is exposed to the side of the vehicle. The electric motor 30 (and the motor case 43b) is arranged offset to the front of the vehicle with respect to the rear wheels 4a and 4b.
The entire electric motor 30 (and the motor case 43b) is arranged in front of the outer circumferences of the rear wheels 4a and 4b in a side view. The electric motor 30 (and the motor case 43b) is arranged in front of the central portion 40a of the swing unit 40 in the length direction C2 (on the swing shaft 41 side). The electric motor 30 is arranged at a position adjacent to the swing shaft (pivot shaft) 41. The swing shaft 41 is provided adjacent to the front of the motor case 43b. As a result, the swing radius from the swing shaft 41 to the heavy electric motor 30 is shortened, and the operability of the swing unit 40 (road surface followability and rough road running performance of the rear suspension 29) is improved.

The electric motor 30 aligns the drive axis C3 with the axis C2 in a side view. The electric motor 30 is arranged at the same height as the arm portion 43a of the swing unit 40. As a result, the electric motor 30 (and the motor case 43b) is prevented from protruding above and below the swing unit 40, which contributes to the reduction of the swing space of the swing unit 40. Further, as compared with the case where the electric motor 30 (and the motor case 43b) projects below the swing unit 40, the ground clearance of the electric motor 30 (and the motor case 43b) is secured, and disturbance from below the vehicle (road surface side) is secured. It suppresses the influence of the road surface and also suppresses the water ingress from the road surface side.

As shown in FIG. 11, the electric motor 30 (and the motor case 43b) is arranged so as to be displaced above the swing unit 40 (the drive axis C3 is offset above the axis C2 in a side view). You may. The electric motor 30 (and the motor case 43b) may be arranged above the arm portion 43a of the swing unit 40. In this case, the ground clearance of the electric motor 30 (and the motor case 43b) is further secured, and disturbance and water ingress from the road surface side are further suppressed.

Since the electric motor 30 is arranged so as to avoid the rear wheels 4a and 4b in a side view, it has the following functions. Compared with the arrangement in which the electric motor 30 overlaps the rear wheels 4a and 4b in a side view like the in-wheel motor, the electric motor 30 can be easily accessed from the vehicle side, and the assembling property and maintainability are improved.
When the electric vehicle 1 includes left and right rear wheels 4a and 4b, the in-wheel motor requires electric motors 30 for each of the left and right rear wheels 4a and 4b, respectively. In the present embodiment, a single electric motor 30 is provided at a position avoiding the rear wheels 4a and 4b in a side view, and the left and right rear wheels 4a and 4b are driven by the electric motor 30 to simplify the rear wheel drive system. It contributes to the conversion. The electric motor 30 may be arranged behind the rear wheels 4a and 4b as long as the rear wheels 4a and 4b are avoided in the side view. Further, in the present embodiment, at least a part of the electric motor 30 may be arranged so as to overlap the rear wheels 4a and 4b in a side view (at least a part of the electric motor 30 is arranged between the left and right rear wheels 4a and 4b), or left and right. It does not exclude the adoption of in-wheel motors for the rear wheels 4a and 4b.

(Electrical parts)
With reference to FIGS. 2 and 5, a battery 100, which is a power source for the electric motor 30, is arranged below the loading platform 75. A junction box 123, a PCU (Power Control Unit) 120, a DC-DC converter 126, and a charger (charger) 125 are arranged below the loading platform 75 as electrical components 130 related to the electric motor 30 and the battery 100. The rear vehicle body 5 supports electrical components 130 such as the battery 100, the junction box 123, the PCU 120, the DC-DC converter 126, and the charger 125 on the rear vehicle body frame 21 which is on the spring of the rear suspension 29. The rear vehicle body 5 utilizes the upper surface of the storage portion 76 for storing the electrical component 130 as a large loading platform 75. Hereinafter, the storage unit 76 may be referred to as a battery storage unit 76 or an electrical component storage unit 76.
Although various arrangements of the electrical components 130 can be considered, the arrangements shown in FIGS. 1 to 5 will be described in this embodiment.

(Battery)
With reference to FIGS. 2 and 3, the battery 100 is mounted below the loading platform 75. The battery 100 is composed of a plurality of (for example, two left and right) unit batteries 101 and 102. The plurality of unit batteries 101 and 102 (hereinafter, may be simply referred to as batteries or left and right batteries) have the same configuration as each other. The left and right batteries 101 and 102 are provided symmetrically with the left and right center lines CL2 of the vehicle body interposed therebetween.
In the present embodiment, by mounting the left and right batteries 101 and 102 at a position lower than the loading platform 75 of the rear vehicle body 5, the height for lifting the left and right batteries 101 and 102, which are heavy objects, can be lowered, and the left and right batteries 101 and 102 can be lifted. It becomes easy to put on and take off. Further, since the upper surface of the battery accommodating space is a large loading platform 75, the convenience of the electric vehicle 1 is improved.

With reference to FIG. 5, the left and right batteries 101 and 102 each have a rectangular cross section (for example, a substantially square shape) and a prismatic shape (rectangular parallelepiped shape) extending in the longitudinal direction. The left and right batteries 101 and 102 are arranged so as to be inclined in a side view so that the rectangular upper surfaces 101c and 102c are directed diagonally upward and forward, respectively. The left and right batteries 101 and 102 are arranged so as to form a V shape when viewed from the normal direction of the back surface facing diagonally upward and rearward. The left and right batteries 101 and 102 are also inclined with respect to the side surface of the vehicle body orthogonal to the left and right directions. The upper surfaces 101c and 102c are provided with handles for the user to grip.

In the left and right batteries 101 and 102, the upper surfaces 101c and 102c facing diagonally upward and forward are further directed to the left and right outward. The left and right batteries 101 and 102 are arranged in an inclined standing posture so as to be located on the front side and the left and right outer sides toward the upper side, respectively. A V-shaped space is formed between the left and right batteries 101 and 102 when viewed from the normal direction. The axes along the longitudinal direction of the left and right batteries 101 and 102 are shown by the middle lines C41 and C42 in FIGS. 2 and 3. Hereinafter, the directions along the axes C41 and C42 are referred to as inclination directions C41 and C42, respectively.

The battery 100 generates a predetermined high voltage (48 to 72V) by appropriately connecting the left and right batteries 101 and 102. The left and right batteries 101 and 102 are each composed of, for example, 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 the charge / discharge status, temperature, and the like.

(Control system)
With reference to FIG. 6, the left and right batteries 101 and 102 are connected to a PDU (Power Driver Unit) (not shown) via a junction box (distributor) 123 including a contactor (electromagnetic switch). The PDU constitutes an integrated PCU (Power Control Unit) 120 together with an ECU (Electric Control Unit) (not shown). The electric power from the battery 100 is supplied to the PDU, which is a motor driver, via a contactor interlocking with the main switch. The electric power from the battery 100 is converted from direct current to three-phase alternating current by the PDU, and then supplied to the motor 30 which is a three-phase alternating current motor. The electric motor 30 performs power running operation according to the control by the PDU to drive the electric vehicle 1.

The output voltage from the battery 100 is stepped down via the DC-DC converter 126 and used for charging a 12 V sub-battery (not shown) or the like. The sub-battery supplies electric power to general electrical components such as lighting equipment and control system components such as an ECU. By mounting the sub-battery, various electromagnetic locks and the like can be operated even when the main battery 100 is removed.

The battery 100 is charged by a charger (DC-AC inverter) 125 connected to an external power source while being mounted on the vehicle body. The battery 100 (left and right batteries 101, 102) can be charged by a charger outside the vehicle while being removed from the vehicle body.

First connection cables 101a and 102a are routed between the left and right batteries 101 and 102 and the junction box 123. A second connection cable 123a is laid between the junction box 123 and the PCU 120. A third connection cable 125a is routed between the junction box 123 and the charger 125.
A fourth connection cable 126a is routed between the junction box 123 and the DC-DC converter (down regulator) 126. A three-phase cable 80 extends from the PDU, and the three-phase cable 80 is connected to the electric motor 30. A charging cable 125b is connected to the charger 125. The charging cable 125b may or may not be detachable from the charger 125, and may have an external charger configuration.

(Battery case)
With reference to FIGS. 2, 3 and 5, the battery 100 is inserted and removed from the battery case 100A fixed to the rear vehicle body 5. The battery case 100A includes a pair of left and right unit battery cases 103, 104 (hereinafter, may be simply referred to as a battery case or a left and right battery case) corresponding to a pair of left and right unit batteries 101, 102. The left and right batteries 101 and 102 are inserted and removed obliquely upward and forward and along the longitudinal direction (inclination directions C41 and C42) from the left and right outside with respect to the vertical direction, respectively. The left and right battery cases 103 and 104 are opened diagonally upward and forward and outward to the left and right, respectively. The left and right battery cases 103 and 104 may be integrated or separate from each other. The left and right battery cases 103 and 104 are provided with lock mechanisms (not shown) that regulate the upward release of the left and right batteries 101 and 102 inserted into the cases, respectively.

The left and right batteries 101 and 102 are inserted and removed while sliding diagonally with respect to the vertical direction, respectively. By inserting and removing the left and right batteries 101 and 102 diagonally with respect to the vertical direction, a part of the battery weight at the time of inserting and removing the battery is supported by the downward wall portion (slope portion) 100B of the battery cases 103 and 104. .. This facilitates the insertion / removal work of the left and right batteries 101 and 102. The battery case 100A may support the left and right batteries 101 and 102 so as to be inserted and removed in the inclined directions C41 and C42 inclined to at least one of the front and the left and right outer sides with respect to the vertical direction.

Battery-side connection terminals (not shown) are provided at the lower ends of the left and right batteries 101 and 102, respectively. Case-side connection terminals (not shown) are provided on the bottoms of the left and right battery cases 103 and 104 to detachably connect the battery-side connection terminals. For example, by storing the left and right batteries 101 and 102 in the battery cases 103 and 104 and operating the lock mechanism in the locked state, the battery side connection terminal and the case side connection terminal are connected.

The operation of the lock mechanism and the insertion / removal of the left and right batteries 101 and 102 are manual, and the left and right batteries 101 and 102 are attached to and detached from the vehicle body without tools. The left and right batteries 101 and 102 are mobile batteries that can be attached to and detached from the vehicle body. The left and right batteries 101 and 102 can be used independently, such as being charged by a charger outside the vehicle or being used as a mobile battery as a power source for an external device.

As will be described later, the left and right batteries 101 and 102 can be attached to and detached from the vehicle body in a state where the front vehicle body 3 is swung with respect to the rear vehicle body 5. The left and right batteries 101 and 102 can be switched between a detachable state and a non-detachable state with respect to the vehicle body depending on whether or not the front vehicle body 3 is in a swinging state.

(Arrangement of rear cushion)
Left and right rear cushions 28 are arranged behind the left and right batteries 101 and 102.
The left and right rear cushions 28 are arranged so that the axial direction (expansion and contraction direction) is along the vertical direction. The left and right rear cushions 28 are arranged so as to overlap at least a part of the left and right batteries 101 and 102 in the front-rear direction view. As a result, the influence of the disturbance from the rear on the left and right batteries 101 and 102 is suppressed by the left and right rear cushions 28. For example, the load input to the left and right batteries 101 and 102 at the time of a rear surface collision is suppressed by the left and right rear cushions 28.

As shown by the chain line in FIG. 11, the left and right rear cushions 28 may be arranged outside the left and right batteries 101 and 102 in the left and right direction. In this case, the left and right rear cushions 28 are arranged so as to overlap at least a part of the left and right batteries 101 and 102 in the left and right direction view. As a result, the influence of disturbance from the outside in the left-right direction on the left and right batteries 101 and 102 is suppressed by the left and right rear cushions 28. For example, the load input to the left and right batteries 101 and 102 at the time of a fall or a side collision is suppressed by the left and right rear cushions 28.

(Arrangement of electrical components)
With reference to FIGS. 2 to 5, the electrical component 130 including the left and right batteries 101 and 102, the PCU 120, the junction box 123, the charger 125 and the DC-DC converter 126 is mounted on the rear vehicle body 5. The electrical component 130 is mounted on the spring of the rear suspension 29 configured on the rear vehicle body 5. As a result, the increase in unsprung weight of the rear suspension 29 is suppressed to improve the operability, and the road surface followability and the rough road running performance are improved.

The PCU 120 is flattened with a reduced vertical thickness. The PCU 120 is arranged behind the front wall portion 71 of the rear body cover 70, for example, at an angle substantially parallel to the front wall portion 71. A plurality of heat radiation fins 120a are erected on the upper surface of the PCU 120. In front of the heat radiating fins 120a, a traveling wind intake 71a formed on the front wall portion 71 of the rear vehicle body cover 70 is arranged so as to face each other. As a result, the PCU 120 is effectively cooled by the traveling wind taken in from the traveling wind intake 71a, and the other electrical components 130 are also cooled. The traveling wind intake 71a may be provided not only on the front wall portion 71 but also on the side wall portion 74 and the upper wall portion 72, and may have a wind guide hood. An exhaust port for exhausting the running wind taken into the rear body cover 70 may be provided at the rear portion of the rear body cover 70.

A junction box 123 and a DC-DC converter 126 are arranged in a space surrounded by the PCU 120, the battery 100, and the rear lower side frame 26 when viewed from the side. The junction box 123 and the DC-DC converter 126 each have a flat shape with reduced vertical thickness. The junction box 123 and the DC-DC converter 126 are supported substantially horizontally, for example, on a support member extending between the left and right rear lower side frames 26.

A charger 125 is arranged in a space surrounded by the battery 100, the rear upper frame 23, and the rear side frame 27 in a side view. The charger 125 has a flat shape with a reduced vertical thickness. The charger 125 is supported, for example, on a support member extending between the left and right rear side frames 27 in an inclined posture substantially parallel to the rear side frame 27. Since the charger 125 is arranged near the rear end of the rear vehicle body 5, it is easy for the user to access. In addition, the charging operation such as pulling out the charging cord from the charger 125 or connecting an external charging cord is facilitated. The charger 125 is arranged near the rear end of the rear vehicle body 5 to improve heat dissipation during battery charging.

The charger 125 is located behind the battery 100. Therefore, the influence of the disturbance from the rear on the battery 100 (left and right batteries 101, 102) is suppressed by the charger 125. For example, the load input to the left and right batteries 101 and 102 at the time of a rear surface collision is suppressed by the charger 125.

The PCU 120 is arranged so as to straddle the left and right center lines CL2 of the vehicle body, for example. The junction box 123 and the DC-DC converter 126 are arranged side by side with the left and right center lines CL2 of the vehicle body interposed therebetween, for example. The charger 125 is arranged so as to straddle the left and right center lines CL2 of the vehicle body, for example.

These electrical components 130 are arranged inside in the left-right direction with respect to the outer portions of the rear vehicle body 5 (left-right outer ends of the left and right rear wheels 4a and 4b). As a result, the influence of disturbance on the electrical component 130 from the outside of the vehicle can be suppressed.
The electrical components 130 are arranged above the rear wheel axle 42 and above the left and right rear lower side frames 26 located at the lower ends of the rear body frame 21. As a result, the ground clearance of the electrical component 130 is secured, the influence of disturbance from below the vehicle (road surface side) is suppressed, and water exposure from the road surface side is also suppressed.

Among the electrical components 130, the drive systems such as the left and right batteries 101 and 102, the PCU 120, the junction box 123, and the DC-DC converter 126 are arranged in front of the rear wheel axle 42. As a result, the electrical component 130 of the drive system can be easily connected to the electric motor 30 offset to the front of the rear wheels 4a and 4b, and the wiring length can be shortened by centrally arranging the rear vehicle body 5 on the front side.
By arranging the electrical components 130 together in the rear vehicle body 5, the length of the wiring connecting the components is suppressed, and the occurrence of bending of the wiring due to the relative movement of each component and wear due to interference is suppressed.

Since the electrical component 130 is mounted on the rear vehicle body 5 which is the non-swinging side vehicle body, the weight of the electrical component 130 is suppressed from affecting the rocking of the front vehicle body 3 which is the rocking side vehicle body, and the electric vehicle 1 The effect on turning performance is suppressed.

(Battery insertion / removal)
With reference to FIGS. 2 and 4, the front wall portion 71 of the rear body cover 70 has left and right openings 77 at positions facing the upper surfaces 101c and 102c of the left and right batteries 101 and 102 in the insertion / removal direction (longitudinal direction), respectively. It is formed. The left and right openings 77 open the battery housing portion 76 toward the front. The left and right openings 77 have, for example, a rectangular shape when viewed in the front-rear direction, and the prismatic left and right batteries 101 and 102 can be inserted and removed, respectively. The left and right openings 77 face the gap S1 between the front and rear vehicle bodies 3 and 5.

With reference to FIG. 7, when the front vehicle body 3 is in the upright state A, at least a part of the rear inclined portion 9a of the front vehicle body 3 is at a position facing the opening 77 with a gap S1. The gap S1 is smaller than the length of the left and right batteries 101 and 102 in the insertion / removal direction. Therefore, the left and right batteries 101 and 102 cannot be inserted or removed. In order to enable the insertion and removal of the left and right batteries 101 and 102, it is necessary to swing the front vehicle body 3 to the swing state B (see FIG. 8) and retract the rear inclined portion 9a from the position facing the opening 77. is there.

With reference to FIG. 8, the front vehicle body 3 is brought into the swinging state B by rotating from the upright state A (see FIG. 7) around the axis C1 of the rotating mechanism 50 by a predetermined angle θ. The front vehicle body 3 retracts the rear inclined portion 9a from the position facing the opening 77 in the rocking state B, and enables the left and right batteries 101 and 102 to be inserted and removed. At this time, the swing angle θ of the front vehicle body 3 is within an angle range in which the rotation mechanism 50 can lock the relative rotation. As a result, the front vehicle body 3 can be locked in the swinging state B when the left and right batteries 101 and 102 are inserted and removed.

The left and right openings 77 are each provided with a lid 78 that can be opened and closed. By providing the lid 78 in the left and right openings 77 facing the front of the vehicle, it is possible to prevent foreign matter and rainwater from entering the battery side. The lid 78 may be formed with a running air intake that allows the running air (cooling air) to be taken into the battery side. The lid 78 may be lockable in conjunction with (or independently of) the main switch.

In the upright state A of the front vehicle body 3, the left and right openings 77 make the left and right batteries 101 and 102 non-detachable due to the rear inclined portion 9a of the front vehicle body 3. When the front vehicle body 3 swings to the left or right to enter the swing state B, the left and right openings 77 can be attached to or detached from the left and right batteries 101 and 102. When the front vehicle body 3 is in the swing state B, the rear inclined portion 9a retracts from the opening 77 on the side opposite to the swing direction, and the corresponding ones of the left and right batteries 101 and 102 can be attached to and detached from the opening 77.

That is, as shown in FIG. 8, when the front vehicle body 3 is rolled to the right side, the opening 77 on the left side of the rear vehicle body 5 is exposed forward, and the battery 101 on the left side can be attached and detached. On the other hand, although not shown, when the front vehicle body 3 is rolled to the left side, the opening 77 on the right side of the rear vehicle body 5 is exposed forward, and the battery 102 on the right side can be attached and detached. Since any of the left and right batteries 101 and 102 can be attached and detached from the side opposite to the tilting direction (swing direction) of the front vehicle body 3, the left and right batteries 101 and 102 can be attached and detached from the user standing on the side opposite to the tilting direction of the front vehicle body 3. Easy to put on and take off.

In this way, the left and right batteries 101 and 102 are switched between the removable state and the left and right batteries 101 and 102 are non-detachable according to the relative swing of the front and rear vehicle bodies 3 and 5. Therefore, when the electric vehicle 1 is parked, the left and right batteries 101 and 102 cannot be reliably attached and detached only by operating the parking lock, and the anti-theft property of the battery 100 is improved. Since the periphery of the battery 100 is covered with the rear body cover 70 and shielded from the outside, the anti-theft property of the battery 100 is also improved in this respect.

The electric vehicle 1 includes a parking lock device 90 that regulates the swing of the front vehicle body 3 by operating the parking lever 91. The parking lever 91 is locked when the main switch is turned off at the locked position where the swing of the front vehicle body 3 is locked. The electric vehicle 1 can be locked in a locked state in which the left and right batteries 101 and 102 cannot be taken out by the following procedure.

That is, the parking lever 91 is operated to the locked position with the front vehicle body 3 equivalent to the upright state A, and the main switch is turned off in this state. Then, the swing of the front vehicle body 3 is locked in the upright state A, and the left and right batteries 101 and 102 are locked in a state where they cannot be taken out. In order to operate the parking lever 91 from this state to release the swing lock (lock for taking out the left and right batteries 101 and 102) of the front vehicle body 3, it is necessary to turn on the main switch.

As described above, the electric vehicle 1 can be locked in a state where the left and right batteries 101 and 102 cannot be taken out when parked or the like, and the anti-theft property of the battery 100 is improved. Then, the anti-theft lock of the battery 100 is locked by using the swing lock mechanism 93 (parking lock device 90) of the front vehicle body 3 that is banked when the electric vehicle 1 is turning, so that the anti-theft lock has a simple configuration. The structure can be realized.

As described above, the electric vehicle 1 in the above embodiment has the front vehicle body 3, the rear vehicle body 5 separated from the front vehicle body 3, and the front vehicle body 3 and the rear vehicle body 5 around the axis C1 facing the vehicle front-rear direction. It is provided with a rotating mechanism 50 that is connected to the electric motor 30 so as to be relatively swingable, an electric motor 30 for traveling a vehicle, and a battery 100 that supplies power to the electric motor 30. The rear vehicle body 5 includes a battery storage unit 76 that detachably stores the battery 100. The battery storage unit 76 has an opening 77 that allows the battery 100 (left and right batteries 101, 102) to be inserted and removed. The front vehicle body 3 is provided with an insertion / removal restricting portion (rear inclined portion 9a) which is arranged to face the opening 77 of the battery housing portion 76 and can regulate the insertion / removal of the battery 100. The insertion / removal regulation portion is arranged so as to face the opening 77 of the battery storage portion 76 in the upright state A in which the front vehicle body 3 and the rear vehicle body 5 coincide with each other on the left and right center lines CL1 and CL2 in the front-rear direction. Restrict the insertion and removal of the battery 100. The insertion / removal restricting portion is from a position facing the opening 77 of the battery housing portion 76 in a swinging state B in which the front vehicle body 3 and the rear vehicle body 5 swing relative to each other by a predetermined angle θ around the axis C1. It retracts and allows the battery 100 to be inserted and removed.

According to this configuration, the battery 100 mounted on the rear vehicle body 5 exerts the following actions by the insertion / removal restricting portion provided on the front vehicle body 3. The battery 100 is restricted from being inserted or removed from the battery housing portion 76 in the upright state A before the front vehicle body 3 and the rear vehicle body 5 swing relative to each other. The battery 100 is allowed to be inserted and removed from the battery housing portion 76 in the rocking state B in which the front vehicle body 3 and the rear vehicle body 5 swing relative to each other beyond the specified angle θ. As a result, the battery 100 is maintained in a non-detachable state in the parking lock state in which the relative swing of the front vehicle body 3 and the rear vehicle body 5 is restricted. Therefore, when the electric vehicle 1 is parked, the battery 100 can be maintained in a non-detachable state, and the anti-theft property of the battery 100 can be improved. Further, the parking lock device 90 can be used as a lock for preventing theft of the battery 100, and the convenience can be improved while suppressing the increase in the configuration.

In the electric vehicle 1, the rotation mechanism 50 regulates the relative swing of the front vehicle body 3 and the rear vehicle body 5 around the axis C1 based on the operation of the main switch (swing lock mechanism 93). ) Is provided.
According to this configuration, the relative swing of the front vehicle body 3 and the rear vehicle body 5 can be regulated by the swing lock mechanism 93 provided in the rotation mechanism 50. By using the swing control unit, the battery 100 can be maintained in a non-detachable state based on the operation of the main switch. Therefore, the rocking restricting unit can be used as a lock for preventing theft of the battery 100, and the convenience can be improved while suppressing the increase in the configuration. Specifically, when the main switch is turned off, the parking lever 91 cannot be operated to the unlocked position (and thus the swing of the front vehicle body 3 is restricted). Therefore, the battery 100 can be maintained in a non-detachable state (anti-theft).
It should be noted that a mechanism or an actuator interlocking with the operation of the main switch may be provided, and the swing control unit may be directly operated according to the on / off of the main switch.

In the electric vehicle 1, the rear vehicle body 5 includes a pair of left and right rear wheels 4a and 4b that maintain a ground contact state. The battery accommodating portion 76 is provided in the rear vehicle body 5. The insertion / removal regulating portion is provided on the front vehicle body 3. In the rocking state B in which the front vehicle body 3 swings with respect to the rear vehicle body 5, the insertion / removal restricting unit retracts from the position facing the opening 77 of the battery storage unit 76 and inserts the battery 100. Allow removal.
According to this configuration, the swing of the front vehicle body 3 to be banked during turning can be locked by using the swing restricting portion. By locking the swing of the front vehicle body 3 by the swing regulating portion, it is possible to obtain an anti-theft lock that regulates the insertion and removal of the battery 100. Compared with the case where the anti-theft lock structure of the battery 100 is exclusively provided, the anti-theft lock of the battery 100 can be realized with a simple configuration.

In the electric vehicle 1, the rear vehicle body 5 has a loading platform 75 provided with at least a part above the rear wheels 4a and 4b, the battery accommodating portion 76 provided below the loading platform 75, and the battery accommodating portion 76. The lid 78 is provided with an opening / closing portion (lid 78) for opening / closing the opening 77 in which the battery 100 can be inserted / removed.
According to this configuration, by providing the battery storage portion 76 below the loading platform 75, it is possible to suppress the height at which the battery 100 is lifted when the battery 100 is attached or detached. Therefore, it is possible to easily attach / detach the heavy battery 100. Further, by providing the opening / closing portion in the opening 77 of the battery housing portion 76, it is possible to prevent foreign matter from entering the battery housing portion 76 and further improve the anti-theft property of the battery 100.

In the electric vehicle 1, the rear vehicle body 5 includes a charger 125 behind the battery storage unit 76.
According to this configuration, by arranging the charger 125 behind the battery storage portion 76 in the rear vehicle body 5, the charger 125 is arranged near the rear end of the entire vehicle body, and access to the charger 125 becomes easy. Since the battery 100, which is a high-voltage component and is a heavy object, is relatively arranged closer to the center of the front and rear of the entire vehicle body, the influence of disturbance from the rear can be suppressed and contribute to the concentration of mass.

In the electric vehicle 1, the battery accommodating portion 76 includes battery cases 103 and 104 for inserting and removing the battery 100 in the inclined directions C41 and C42 inclined with respect to the vertical direction. The battery cases 103 and 104 receive at least a part of the weight of the battery 100 inserted and removed in the inclination directions C41 and C42.
According to this configuration, it becomes easier to lift the heavy battery 100 as compared with the case where the battery 100 is inserted and removed in the vertical direction. Further, since the battery cases 103 and 104 receive at least a part of the battery weight, the operation of attaching / detaching the battery 100 can be facilitated.

In the electric vehicle 1, the rear body 5 connects the rear body frame 21, the swing unit 40 that supports the rear wheels 4a and 4b so as to swing up and down, and the rear body frame 21 and the swing unit 40. A rear cushion 28 arranged behind or to the side of the battery 100 is provided.
According to this configuration, the rear cushion 28 of the rear wheel suspension device 29 is used to suppress the influence of disturbance from the rear or side on the battery 100. Therefore, the protection of the battery 100 can be improved.

In the electric vehicle 1, the rear vehicle body 5 includes a swing unit 40 that supports the rear wheels 4a and 4b so as to be able to swing up and down. The electric motor 30 is provided at a position of the swing unit 40 avoiding the rear wheels 4a and 4b in a side view.
According to this configuration, access to the electric motor 30 can be easily performed from the side of the vehicle as compared with the case where the electric motor 30 is arranged so as to overlap the rear wheels 4a and 4b in a side view, for example, an in-wheel motor. Become. Therefore, the assembling property and maintainability of the electric motor 30 can be improved.

In the electric vehicle 1, the electric motor 30 is arranged closer to the swing shaft 41 than the central portion 40a in the length direction of the swing unit 40.
According to this configuration, the heavy electric motor 30 is provided at a position close to the swing shaft 41 in the swing unit 40. Therefore, the operability of the swing unit 40 can be improved.

In the electric vehicle 1, the electric motor 30 may be arranged above the swing unit 40.
According to this configuration, by providing the electric motor 30 on the upper part of the swing unit 40, it is possible to suppress disturbance and water reception from the road surface side with respect to the electric motor 30.

The present invention is not limited to the above embodiment. For example, in the embodiment, a covered tricycle is illustrated, but the present invention is not limited to this. The present invention is widely applicable to saddle-riding vehicles in which the front and rear bodies can rotate relative to each other, including vehicles without a roof. The saddle-riding type vehicle includes all vehicles that the driver rides across the vehicle body, and includes not only motorcycles (including motorized bicycles and scooter type vehicles) but also three wheels (one front wheel and two rear wheels). , Front two-wheeled and rear one-wheeled vehicles) or four-wheeled vehicles are also included.

The electrical component 130 may be mounted on the spring of the rear suspension 29. For example, a rear frame extending rearward above the rear wheels 4a and 4b may be integrally provided on the front vehicle body 3, and the electrical component 130 may be mounted on the rear frame.
The electric motor 30 may be mounted on the rear body frame 21 and the driving force may be transmitted to the rear wheels 4a and 4b by a chain or the like. In this case, a swing arm as a structure may be provided instead of the swing unit 40.
The rear cushion 28 may be arranged in front of the battery 100. In this case, the rear cushion 28 may be provided alone. Further, the rear cushion 28 may be connected to the vehicle body via a link mechanism.

The battery 100 is not limited to the rear vehicle body 5 which is the rocking side vehicle body, and may be mounted on the front vehicle body 3 which is the rocking side vehicle body. That is, the battery 100 may be mounted below the seat 7 or the like so that the battery 100 can be inserted and removed when the front and rear vehicle bodies 3 and 5 swing relative to each other. Further, the batteries 100 may be mounted on the front and rear vehicle bodies 3 and 5, respectively, and the batteries 100 may be inserted and removed when the front and rear vehicle bodies 3 and 5 are relatively rocked. In these cases as well, the anti-theft property of the battery 100 when the electric vehicle 1 is parked can be improved, and the convenience can be improved while suppressing the increase in the configuration.
The configuration in the above embodiment is an example of the present invention, and various modifications can be made without departing from the gist of the present invention, such as replacing the components of the embodiment with well-known components.

1 Electric vehicle 2 Front wheels 3 Front body (front structure of body)
CL1 Left and right center line A Upright state B Swing state θ Angle 4a, 4b Left and right rear wheels 5 Rear vehicle body (vehicle body rear structure)
CL2 Left and right center line 9a Rear inclined part (insertion / removal regulation part)
21 Rear body frame 28 Rear cushion 30 Electric motor 40 Swing unit (swing arm)
40a Central part C2 Length direction 41 Swing shaft 50 Rotation mechanism C1 Axis line 75 Loading platform 76 Battery storage part 77 Opening 78 Lid (opening and closing part)
93 Swing lock mechanism (swing regulation part)
100 Battery 101,102 Left and right batteries C41, C42 Tilt direction 100A Battery case 103,104 Left and right battery case 125 Charger

Claims (10)

Body front structure (3) and
The vehicle body rear structure (5) separated from the vehicle body front structure (3) and
A rotating mechanism (50) that connects the vehicle body front structure (3) and the vehicle body rear structure (5) so as to be relatively swingable around an axis (C1) facing the vehicle front-rear direction.
Electric motor (30) for running vehicles and
An electric vehicle (1) including a battery (100) that supplies power to the electric motor (30).
At least one of the vehicle body front structure (3) and the vehicle body rear structure (5) includes a battery storage portion (76) for detachably storing the battery (100).
The battery housing (76) includes an opening (77) that allows the battery (100) to be inserted and removed.
At least the other of the vehicle body front structure (3) and the vehicle body rear structure (5) is arranged to face the opening (77) of the battery storage portion (76), and the insertion / removal of the battery (100) can be regulated. An electric vehicle equipped with an insertion / removal regulation unit (9a). The rotation mechanism (50) regulates the relative swing of the vehicle body front structure (3) and the vehicle body rear structure (5) around the axis (C1) based on the operation of the main switch. The electric vehicle according to claim 1, further comprising a part (93). The vehicle body rear structure (5) includes a pair of left and right rear wheels (4a, 4b) that maintain a ground contact state.
The battery housing portion (76) is provided in the vehicle body rear structure (5).
The insertion / removal restricting portion (9a) is provided in the vehicle body front structure (3), and the vehicle body front structure (3) swings with respect to the vehicle body rear structure (5). The electric vehicle according to claim 2, wherein in the state (B), the battery (76) is retracted from a position facing the opening (77) of the battery storage portion (76) to allow the battery (100) to be inserted and removed. The vehicle body rear structure (5) includes a loading platform (75) provided at least partially above the rear wheels (4a, 4b) and the battery accommodating portion (76) provided below the loading platform (75). The invention according to any one of claims 1 to 3, further comprising an opening / closing portion (78) for opening / closing an opening (77) in the battery accommodating portion (76) for inserting and removing the battery (100). Electric vehicle. The electric vehicle according to claim 4, wherein the vehicle body rear structure (5) is provided with a charger (125) behind the battery storage unit (76). 4. The battery accommodating portion (76) includes a battery case (100A) that supports the battery (100) so as to be inserted and removed in an inclined direction (C41, C42) inclined with respect to the vertical direction. 5. The electric vehicle according to 5. The vehicle body rear structure (5) includes a rear vehicle body frame (21), a swing arm (40) that supports the rear wheels (4a, 4b) so as to swing up and down, the rear vehicle body frame (21), and the swing. A rear cushion (28) for connecting the arm (40) is provided.
The rear cushion (28) is rearward of the battery (100) so that at least a part of the rear cushion (100) overlaps the battery (100) in the front-rear direction, or the battery (28) is viewed from the side of the battery (100). The electric vehicle according to any one of claims 4 to 6, which is arranged so as to overlap at least a part of 100). The vehicle body rear structure (5) includes a swing arm (40) that supports the rear wheels (4a, 4b) so as to be vertically swingable.
The electric vehicle according to any one of claims 4 to 7, wherein the electric motor (30) is provided at a position of the swing arm (40) avoiding the rear wheels (4a, 4b) in a side view. The electric vehicle according to claim 8, wherein the electric motor (30) is arranged on the swing shaft (41) side of the central portion (40a) of the swing arm (40) in the length direction (C2). The electric vehicle according to claim 8 or 9, wherein the electric motor (30) is arranged above the swing arm (40).

Images