WO2019194000A1 - Electric vehicle - Google Patents

Abstract

Provided is an electric vehicle (1) comprising: a vehicle body front structure (3); a vehicle body rear structure (5) separated from the vehicle body front structure (3); a rotating mechanism (50) coupled so as to be capable of relative swinging the vehicle body front structure (3) and the vehicle body rear structure (5) about an axis (C1) facing in the longitudinal direction of the vehicle; an electric motor (30) for driving the vehicle; and a battery (100) supplying electric power to the electric motor (30), wherein at least one of the vehicle body front structure (3) and the vehicle body rear structure (5) has a battery accommodation portion (76) that accommodates the battery (100) in a removable manner; the battery accommodation portion (76) has an opening (77) through which the battery (100) can be inserted and removed; and at least the other of the vehicle body front structure (3) and the vehicle body rear structure (5) has an insertion and removal regulating portion (9a) that is disposed opposite to the opening (77) of the battery accommodation portion (76) and is capable of regulating the insertion and removal of the battery (100).

Description

Electric vehicle

The present invention relates to an electric vehicle.
This 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 a front vehicle body can swing in a roll direction (a rotation direction about an axis facing a vehicle front-rear direction) with respect to a rear vehicle body. In this electric vehicle, the fixed bracket 3 supported by the pivot 51 laid between the left and right body frames 1 so as to be able to swing up and down, and the fixed bracket 3 is rotated about the axis facing the front-rear direction via the ball bearing 53. The swing shaft 4 is supported, the movable bracket 5 is fixed to the rear portion of the swing shaft 4, and the upper support frame 55 and the lower support frame 56 (battery support frame 9) are welded to the movable bracket 5. ing. A plurality of batteries 10 are placed 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 a spring of the rear suspension.

Japanese Patent No. 3189777

By the way, in the above conventional technique, the battery 10 is covered with the battery support frame 9 (upper support frame 55, lower support frame 56, connection 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 conventional technology, a configuration for restricting the attachment / detachment of the battery 10 is not disclosed, and there is room for improvement from the viewpoint of preventing theft.

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

As a means for solving the above-described problems, the first aspect of the present invention includes 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 turning mechanism (50) for connecting the part structure (3) and the vehicle body rear structure (5) so as to be able to swing relative to each other about an axis (C1) facing the vehicle front-rear direction, and an electric motor (30 ) And a battery (100) for supplying electric power to the electric motor (30), at least of the vehicle body front structure (3) and the vehicle body rear structure (5) One is provided with a battery storage part (76) for detachably storing the battery (100), the battery storage part (76) is provided with an opening (77) that allows the battery (100) to be inserted and removed, The vehicle body front structure (3) and the vehicle body rear structure ( At least the other) is provided with the battery housing part (76 restricting possible insertion and removal regulating portion insertion and removal opening (77) to be opposed the battery (100) of) (9a).
According to a second aspect of the present invention, in the first aspect described above, the turning mechanism (50) is arranged around the axis (C1) of the vehicle body front structure (3) and the vehicle body rear structure (5). A swing restricting portion (93) for restricting relative swing based on the operation of the main switch is provided.
According to 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 grounded state, and the battery housing (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) swinging with respect to the rear structure (5), the battery (100) is retracted from the position facing the opening (77) of the battery housing (76). Allow.
According to a fourth aspect of the present invention, in any one of the first to third aspects, at least a part of the vehicle body rear structure (5) is provided above the rear wheels (4a, 4b). A loading platform (75), the battery storage portion (76) provided below the loading platform (75), and an opening (77) that allows the battery (100) to be inserted into and removed from the battery storage portion (76) are opened and closed. And an opening / closing part (78).
According to a fifth aspect of the present invention, in the above fourth aspect, the vehicle body rear structure (5) includes a charger (125) behind the battery housing (76).
According to a sixth aspect of the present invention, in the fourth or fifth aspect, the battery housing portion (76) is inserted in the inclined direction (C41, C42) in which the battery (100) is inclined with respect to the vertical direction. A battery case (100A) is provided for support so as to be removed.
According to a seventh aspect of the present invention, in any one of the fourth to sixth aspects, the vehicle body rear structure (5) includes a rear vehicle body frame (21) and a rear wheel (4a, 4b). A swing arm (40) that supports swinging up and down, and a rear cushion (28) that connects the rear body frame (21) and the swing arm (40), and the rear cushion (28) At least a part of the battery (100) overlaps with the battery (100) in the front-rear direction behind the battery (100), or at least a part of the battery (100) overlaps with the side of the battery (100) in a side view. Are arranged as follows.
According to an eighth aspect of the present invention, in any one of the fourth to seventh aspects, the vehicle body rear structure (5) is a swing that supports the rear wheels (4a, 4b) so as to be vertically swingable. The electric motor (30) is provided at a position that includes the arm (40) and avoids the rear wheels (4a, 4b) in the swing arm (40) in a side view.
According to a ninth aspect of the present invention, in the eighth aspect, the electric motor (30) is configured such that the swing axis (41) is more than the central portion (40a) in the length direction (C2) of the swing arm (40). Arranged on the side.
According to a tenth aspect of the present invention, in the eighth or ninth aspect, the electric motor (30) is disposed 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 has a battery housing with an insertion / removal restriction provided on at least the other of the vehicle body front structure and the vehicle body rear structure. Since the battery can be attached to and detached from the opening using the rotating mechanism by being opposed to the opening of the part, it is possible to prevent theft of the battery while suppressing an increase in the configuration. Can do.
According to the second aspect, using the swing restricting portion that restricts the relative swing of the vehicle body front structure and the vehicle body rear structure, it is possible to maintain a state in which the battery is not removable based on the operation of the main switch. Therefore, the swing restricting portion can be used as a lock for preventing theft of the battery, and the convenience can be improved while suppressing an increase in the configuration.
According to the third aspect, the swing of the vehicle body front structure that is banked during turning travel can be locked using the swing restriction portion, and the vehicle body front structure can be locked by the swing restriction portion. By locking the swing of the battery, it is possible to provide an antitheft lock that restricts battery insertion and removal. That is, the battery antitheft lock can be realized with a simple configuration as compared with the case where the battery antitheft lock structure is provided exclusively.
According to the fourth aspect, by providing the battery storage portion below the loading platform, it is possible to suppress the height at which the battery is lifted when the battery is attached and detached, and to facilitate the attachment and detachment of the heavy battery. it can. In addition, by providing an opening / closing part at the opening of the battery storage part, it is possible to suppress the entry of foreign matter into the battery storage part and to further improve the battery anti-theft property.
According to the fifth aspect, since the charger is arranged near the rear end of the entire vehicle body by disposing the charger behind the battery housing portion in the vehicle body rear structure, it is easy to access the charger. become. Since the battery, which is a high-voltage component and is a heavy object, is disposed relatively near the front and rear center of the entire vehicle body, it is possible to suppress the influence of disturbance from the rear and contribute to mass concentration.
According to the sixth aspect, compared to the case where the battery is inserted / removed in the vertical direction, it is easy to lift the heavy battery, and at least a part of the battery weight can be received by the battery case. The battery can be easily attached and detached.
According to the seventh aspect, by using the rear cushion of the rear wheel suspension device, it is possible to suppress the influence of disturbance from the rear side or side of the battery, and to improve the battery protection.
According to the eighth aspect, compared to the case where the electric motor is arranged so as to overlap the rear wheel in a side view as in the in-wheel motor, access to the electric motor from the side of the vehicle is facilitated, and the electric motor Assembly and maintenance can be improved.
According to the ninth aspect, the operability of the swing arm can be improved by providing the heavy electric motor at a position close to the swing axis of 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 flooding from the road surface side to the electric motor.

It is a left view of the electric vehicle in embodiment of this invention. It is a left view of the vehicle body rear part of the said electric vehicle. It is a rear view of the said electric vehicle. It is a perspective view of the rear vehicle body of the said electric vehicle. It is a perspective view of the state which removed the rear body cover from the said rear vehicle body. It is a block diagram of main electric equipment parts of the above-mentioned electric vehicle. It is a front view of the vehicle body rear part when the front vehicle body of the said electric vehicle is in an upright state. FIG. 3 is a front view of the rear portion of the vehicle body when the front vehicle body of the electric vehicle is in a swinging state. It is a top view containing the partial cross section of the rotation mechanism of the said electric vehicle. FIG. 10 is a sectional view taken along line XX in FIG. 9. It is a left view equivalent to FIG. 2 which shows the modification of embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the directions such as front, rear, left and right in the following description are the same as those in the vehicle described below unless otherwise specified. Further, in the drawings used for the following explanation, 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 side of the vehicle are shown.

(Whole vehicle)
As shown in FIGS. 1 to 3, the electric vehicle 1 of the present embodiment supports a front wheel 2 that is a steered wheel on 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 the front vehicle body (swing-side vehicle body) 3 on which the occupant gets on a left-right swing (rolling motion) with respect to the rear vehicle body (non-swing-side vehicle body) 5 with the left and right rear wheels 4a, 4b grounded. Make it possible. The electric vehicle 1 is configured as a swinging electric tricycle.

The front vehicle body 3 includes a bar handle 6 for front wheel steering and a seat 7 for occupant seating. The front vehicle body 3 has a space 8 between the bar handle 6 and the seat 7. The front vehicle body 3 includes 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 rotation mechanism (rolling joint) 50. In the figure, reference numeral C1 indicates a rotation axis extending in the vehicle longitudinal direction of the rotation mechanism 50, line CL1 indicates the left-right center line of the front vehicle body 3, and line CL2 indicates the left-right center line of the rear vehicle body 5.

(Front car body)
Referring 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 backward, and a pair of left and right branches that branch from the left and right sides of the curved portion of the front frame 14 and extend rearward. The lower frame 15 and a pair of left and right rear frames 16 extending from the rear end portions of the left and right lower frames 15 to bend obliquely rearward and upward. A rear end portion of the front frame 14 is coupled to an intermediate portion of the lower cross frame 17 that extends between the rear portions of the left and right lower frames 15. For example, a bottom link type front wheel suspension device 13 is supported on the head pipe 12 so as to be steerable. The front wheel 2 is supported at the lower end of the front wheel suspension device 13.

A rear lower cross frame 18 is disposed behind the lower cross frame 17 and extends between the lower portions of the left and right rear frames 16. A front structure 51 of the rotation mechanism 50 is fixedly supported on the lower cross frame 17 and the rear lower cross frame 18.
During the turning of the electric vehicle 1, the front vehicle body 3 swings (banks) in the turning direction via the rotation mechanism 50 with respect to the rear vehicle body 5 with the left and right rear wheels 4 a and 4 b in contact with the road surface G. . Thereby, the front vehicle body 3 produces a steering angle on the front wheels 2 which are steered wheels.

The entire front vehicle body 3 including the front vehicle body frame 11 is covered with a 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 that continues to the rear of the rear board, a rear inclined board 64 that inclines obliquely upward and rearward behind the floor board 63, and a seat lower cover 65 that extends to the lower side of the rising seat 7 at the left and right inner portions of the rear inclined board 64. And. 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 the low 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, etc., constitutes a rear inclined portion 9a that continues to the rear of the low floor floor 9. A backrest 66 that forms a substantially vertical front surface rises behind the seat 7. 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 cargo bed front wall portion 66 b that stands above the front end portion of the cargo bed 75 in the rear vehicle body 5. Above the backrest 66, a pair of left and right support columns 66a extend. A wind screen 67 extends above the front cover 61. A roof 68 that curves and extends rearward is connected to the upper end portion of the wind screen 67. The rear end portion of the roof 68 is supported by the upper end portions of the left and right support columns 66a.

(Rear body)
As shown in FIGS. 1 to 3, the rear vehicle body 5 includes a rear vehicle body frame 21 that is independent from the front vehicle body frame 11. The rear vehicle body frame 21 includes a second rear frame 22 that extends obliquely rearward and upward from the upper portion of the rotation mechanism 50, a rear upper frame 23 that curves backward from the upper end of the second rear frame 22, and a rear upper frame 23. A rear upper cross frame 24 coupled to the rear portion and extending in the left-right direction, a middle upper cross frame 24 a coupled to the front portion of the rear upper frame 23 and extending 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 the left and right sides of the second rear lower cross frame 25, and diagonally from the rear ends of the left and right rear lower side frames 26 A pair of left and right rear side frames 27 extending curvedly upward and rearward. The left and right rear side frames 27 are coupled 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 rotation mechanism 50 is fixedly supported at the lower part of the second rear frame 22. The rear end portion of the rear structure 52 supports the front end portion of the swing unit 40 via a swing shaft (pivot shaft) 41 that extends (extends) in the left-right direction. For example, a lower end portion of a pair of left and right rear cushions 28 is connected to an outer cylinder 42a of a rear wheel axle 42 provided at the rear portion 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 vehicle body frame 21 via the left and right rear cushions 28. The rear vehicle body 5 includes a rear wheel suspension device (rear suspension) 29 including a swing unit 40, left and right rear cushions 28, and a rear vehicle body frame 21.

Referring also to FIG. 4, the entire rear vehicle body 5 including the rear vehicle body frame 21 is covered with a rear vehicle body cover 70. The rear body cover 70 includes a front wall portion 71 that forms an inclined front surface substantially parallel to the second rear frame 22, an upper wall portion 72 that extends substantially horizontally rearward from the upper end portion of the front wall portion 71, 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. The left and right side wall portions 74 are formed with rear fenders 74a that cover the upper sides of the left and right rear wheels 4a and 4b. Together with the rear upper frame 23, the rear upper cross frame 24, the intermediate upper cross frame 24a, and the like, the upper wall portion 72 constitutes a loading platform 75 on the upper surface of the rear vehicle body 5 (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 disposed between the rear inclined portion 9a with a clearance S1 (see FIG. 2) that does not interfere with the rear inclined portion 9a when the front and rear vehicle bodies 3 and 5 are relatively swung. For convenience of illustration, only a part of the rear vehicle body cover 70 is shown in FIGS.

(Swing unit)
1 to 3, the swing unit 40 is disposed between the left and right rear wheels 4a and 4b. The swing unit 40 is disposed 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 with the length direction directed in the front-rear direction. The swing unit 40 extends along an 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 that 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 swingable up and down, an electric motor 30 accommodated in a 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 43 a includes a motor case 43 b that is bulged up and down with respect to other parts at a part that houses the electric motor 30.

A pair of left and right rear wheel axles (output shafts) 42 that respectively support the left and right rear wheels 4a and 4b extend on the left and right sides in the rear part 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. Outer cylinders 42 a that respectively accommodate the left and right rear wheel axles 42 extend on the left and right sides of the differential mechanism 44.

(Rotating mechanism)
Referring to FIGS. 2, 9, and 10, the rotation 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 51 a that is fixedly supported by the front body frame 11. The rear structure 52 includes a rear support shaft 52 a that is fixedly supported by the rear vehicle 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 supported so as to be rotatable around the axis C1.

A pivot bracket 52b is integrally coupled to a rear portion of the rear support shaft 52a protruding rearward of the front casing 51a. The pivot bracket 52b supports the front end portion of the swing unit 40 so as to be swingable up and down. A front end portion of a unit case 43 of the swing unit 40 is connected to the pivot bracket 52b through a swing shaft 41 along the left-right direction so as to be swingable up and down. A front lower end portion of the rear vehicle body frame 21 is integrally coupled to the rear support shaft 52a. The rear vehicle body frame 21 and thus the rear vehicle body 5 and the front vehicle body frame 11 and thus the front vehicle body 3 are connected to each other so as to be relatively swingable about the axis C1.

Referring to FIGS. 9 and 10, a knight hart cam 56 is rotatably provided at a front portion of the rear support shaft 52a inserted into the front casing 51a. The knight hart cam 56 has a substantially rhombus shape having four concave sides when viewed in the axial direction. A portion of the front casing 51a where the nighthard cam 56 is inserted is provided with a substantially rectangular case portion 57 as viewed in the axial direction. For example, cylindrical night hull rubbers 58 are arranged at four corners of the space in the case portion 57 when viewed in the axial direction. Each night hull rubber 58 is disposed so that the axial direction is substantially parallel to the case portion 57. Each night hull rubber 58 has an axial view of the night hull cam 56 in the upright state A of the front vehicle body 3 (a 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 and rear direction view, see FIG. 7). Four sides are in contact.

The turning mechanism 50 includes a Knighthard 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 rubber 58 has the following effects 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 knight hull rubber 58 is compressed by the knight hull cam 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 operates the parking brake (parking lock mechanism 99) to restrict 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 in, for example, a parking lever 91 (see FIG. 1) disposed near the left and right center of the bar handle 6, a parking cable 92 (see FIG. 9) extending from the parking lever 91, and the rotation mechanism 50. The swing lock mechanism 93 (see FIG. 9) and the parking lock mechanism 99 (see FIG. 2) provided in the swing unit 40 are provided. The parking cable 92 is engaged with each of the rocking 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, and the swing and forward / backward movement of the vehicle body are locked.

The parking lever 91 can be operated toward either the locked position or the unlocked position. In the locked position, the swinging of the front vehicle body 3 and the rotation of the rear wheels 4a and 4b are restricted. At the unlock position, the restriction on the swing of the front vehicle body 3 and the rotation of the rear wheels 4a and 4b is released. The parking lever 91 can be operated when a main switch (not shown) of the electric vehicle 1 is on. When 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 proximal end of the inner cable 92 a 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 brings the tip end side to the side of the rotation mechanism 50. On the side of the rotation mechanism 50, the inner cable 92 a is engaged with the input end of the rocking lock mechanism 93.

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

Referring to FIG. 9, in the rotation mechanism 50, an L-shaped space in 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 rocking lock mechanism 93 is disposed in this space. A front outer holding portion 51b is provided on the front wall of the front casing 51a on the side of the rear support shaft 52a. The front outer holding portion 51b holds the rear end of the front outer cable 92b on the parking lever 91 side of the parking cable 92. A rear outer holding portion 51c is provided on the rear wall of the front casing 51a on the side of the rear support shaft 52a. The rear outer holding portion 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. A middle portion in the length direction of the swing arm 94 is swingably supported by a swing shaft 94a supported by the front casing 51a. The other end of the swing arm 94 is connected to the tip of a stopper pole 96 through 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 stopper pole 96 extends at the front end side to the front of the front end portion of the rear support shaft 52a. At the tip of the stopper pole 96, a claw 96b is provided so as to face the front end of the rear support shaft 52a. A stopper plate 97 is provided at the front end of the rear support shaft 52a so as to be integrally rotatable. The stopper plate 97 is provided in a fan shape centered on the axis C1 when viewed in the axial direction. On the outer peripheral portion of the stopper plate 97, a plurality of groove portions 97b that can engage the claw portions 96b of the stopper pole 96 are formed side by side in the circumferential direction about the axis C1.

In such a configuration, when the inner cable 92 a is pulled by operating the parking lever 91, the swing arm 94 of the swing lock mechanism 93 is operated, and the claw portion 96 b of the stopper pole 96 is inserted into any of the plurality of grooves 97 b of the stopper plate 97. Engage with the crab. As a result, the rocking lock mechanism 93 is locked at the angle around the axis C1 of the groove 97b with which the claw 96b is engaged, and the rotation of the rear support shaft 52a relative 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 restricted at an arbitrary angle in the angle range in which the plurality of groove portions 97b of the stopper plate 97 are formed. For this reason, the swinging of the front vehicle body 3 with respect to the rear vehicle body 5 can be locked at an arbitrary swinging angle in the angle range.

The inner cable 92 a extends to the rear of the front casing 51 a together with the rear outer cable 92 c and reaches the side of the rear portion of the swing unit 40. In the gear case constituting the rear portion of the swing unit 40, a parking lock mechanism 99 using a stopper pole and a stopper plate is formed in the same manner as the swing lock mechanism 93. An inner cable 92 a 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 longitudinal movement of the electric vehicle 1 is restricted.

(Electric motor)
Referring to FIG. 6, electric motor 30 is driven by the power of 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 controlled to have a continuously variable transmission, but is not limited thereto. For example, the electric motor 30 may be controlled so as to have a stepped transmission.

Referring also to FIG. 2, the electric motor 30 is arranged in a so-called vertical position with the drive shaft directed in the vehicle front-rear direction. A line C3 in the figure indicates a drive axis of the electric motor 30. The electric motor 30 (and the motor case 43b) is disposed 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 electric motor 30 (and the motor case 43b) is disposed in front of the outer periphery of the rear wheels 4a and 4b in a side view. The electric motor 30 (and the motor case 43b) is disposed in front of the central portion 40a in the length direction C2 of the swing unit 40 (on the swing shaft 41 side). The electric motor 30 is disposed at a position adjacent to the swing axis (pivot axis) 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 (the road surface followability and bad road running performance of the rear suspension 29) is improved.

The electric motor 30 makes the drive axis C3 coincide with the axis C2 in a side view. The electric motor 30 is disposed at the same height as the arm portion 43 a of the swing unit 40. Thus, the electric motor 30 (and the motor case 43b) is prevented from projecting above and below the swing unit 40, thereby contributing to a reduction in the swing space of the swing unit 40. Further, the ground clearance of the electric motor 30 (and the motor case 43b) is ensured compared to the case where the electric motor 30 (and the motor case 43b) protrudes below the swing unit 40, and disturbance from the vehicle lower side (road surface side). In addition, the flooding from the road surface side is suppressed.

As shown in FIG. 11, the electric motor 30 (and the motor case 43b) is disposed above the swing unit 40 (with the drive axis C3 offset above the axis C2 in a side view). May be. The electric motor 30 (and the motor case 43b) may be disposed 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 ensured, and disturbance from the road surface side and flooding are further suppressed.

Since the electric motor 30 is disposed so as to avoid the rear wheels 4a and 4b in a side view, the following operation is achieved. The electric motor 30 is easier to access to the electric motor 30 from the side of the vehicle than the arrangement overlapping the rear wheels 4a and 4b in a side view like the in-wheel motor, and improves the assembling property and the maintainability.
When the electric vehicle 1 includes the left and right rear wheels 4a and 4b, the in-wheel motor requires an electric motor 30 for each of the left and right rear wheels 4a and 4b. 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. Has contributed to The electric motor 30 may be disposed behind the rear wheels 4a and 4b as long as the rear wheels 4a and 4b are disposed in a side view. In the present embodiment, at least a part of the electric motor 30 overlaps with the rear wheels 4a and 4b in a side view (an arrangement in which at least a part of the electric motor 30 is between the left and right rear wheels 4a and 4b). It is not excluded to employ an in-wheel motor for the rear wheels 4a and 4b.

(Electrical parts)
With reference to FIGS. 2 and 5, a battery 100 as a power source of the electric motor 30 is disposed below the loading platform 75. 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 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 that is on the spring of the rear suspension 29. The rear vehicle body 5 utilizes the upper surface of the storage portion 76 that stores the electrical component 130 as a large cargo bed 75. Hereinafter, the storage unit 76 may be referred to as a battery storage unit 76 or an electrical component storage unit 76.
Various arrangements of the electrical component 130 can be considered. In the present embodiment, the arrangement shown in FIGS. 1 to 5 will be described.

(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 on the left and right) unit batteries 101 and 102. The plurality of unit batteries 101 and 102 (hereinafter also simply referred to as batteries or left and right batteries) have the same configuration. The left and right batteries 101 and 102 are provided symmetrically with respect to the vehicle body left and right center line CL2.
In this 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 reduced. It becomes easy to put on and take off. Moreover, since the upper surface of the battery accommodating space is a large loading platform 75, the convenience of the electric vehicle 1 is improved.

Referring also to FIG. 5, the left and right batteries 101 and 102 each have a rectangular column shape (a rectangular parallelepiped shape) extending in the longitudinal direction with a rectangular cross section (for example, a substantially square shape). The left and right batteries 101 and 102 are disposed so as to be inclined in a side view so that the rectangular upper surfaces 101c and 102c face obliquely 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 rear 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 perpendicular to the left and right direction. The upper surfaces 101c and 102c are provided with handles for the user to hold.

The left and right batteries 101, 102 have their upper surfaces 101c, 102c facing diagonally upward and forward facing further outward. The left and right batteries 101 and 102 are arranged in a standing posture inclined so as to be positioned on the front side and on the left and right outer sides as 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, 102 are indicated by the lines C41, C42 in FIGS. Hereinafter, 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 72 V) by appropriately connecting the left and right batteries 101 and 102. Each of the left and right batteries 101 and 102 is 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 charge / discharge status, temperature, and the like.

(Control system)
Referring to FIG. 6, 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 through a contactor linked 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 that is a three-phase alternating current motor. The electric motor 30 performs a power running operation according to control by the PDU, and causes the electric vehicle 1 to travel.

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

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

Between the left and right batteries 101 and 102 and the junction box 123, first connection cables 101a and 102a are routed. A second connection cable 123 a is routed between the junction box 123 and the PCU 120. A third connection cable 125 a is routed between the junction box 123 and the charger 125.
A fourth connection cable 126 a 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 125 b is connected to the charger 125. Regardless of whether the charging cable 125b can be attached to or detached from the charger 125, the charging cable 125b may be configured as an external charger.

(Battery case)
Referring to FIGS. 2, 3, and 5, battery 100 is inserted into and removed from battery case 100 </ b> A fixed to rear vehicle body 5. The battery case 100 </ b> A includes a pair of left and right unit battery cases 103 and 104 (hereinafter, simply referred to as a battery case or a left and right battery case) corresponding to the pair of left and right unit batteries 101 and 102. The left and right batteries 101 and 102 are inserted and removed along the longitudinal direction (inclination directions C41 and C42) from the upper front side and the outer left and right sides with respect to the vertical direction. The left and right battery cases 103 and 104 are opened obliquely upward and forward and toward the left and right outer sides, respectively. The left and right battery cases 103 and 104 may be integrated with each other or separated. The left and right battery cases 103 and 104 are each provided with a lock mechanism (not shown) that restricts the left and right batteries 101 and 102 inserted into the cases from being detached upward.

The left and right batteries 101 and 102 are inserted and removed while sliding obliquely with respect to the vertical direction. When the left and right batteries 101 and 102 are inserted / removed obliquely with respect to the vertical direction, a part of the battery weight when the batteries are inserted / removed is supported by the downward wall portions (slope portions) 100B of the battery cases 103, 104. . Thereby, it becomes easy to insert and remove the left and right batteries 101 and 102. The battery case 100A only needs to support the left and right batteries 101, 102 so as to be inserted / removed in the inclined directions C41, C42 inclined at least one of the front side and the left side / right side 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) for detachably connecting the battery-side connection terminals are provided at the bottoms of the left and right battery cases 103 and 104. For example, the left and right batteries 101 and 102 are accommodated in the battery cases 103 and 104, and the lock mechanism is operated in a locked state, whereby the battery side connection terminal and the case side connection terminal are connected.

The operation of the locking mechanism and the insertion and 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 used as a power source for an external device as a mobile battery.

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

(Rear cushion arrangement)
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 (stretching direction) is along the vertical direction. The left and right rear cushions 28 are arranged so as to at least partially overlap the left and right batteries 101 and 102 when viewed in the front-rear direction. Thereby, 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 collision is suppressed by the left and right rear cushions 28.

In addition, as shown by a chain line in FIG. 11, the left and right rear cushions 28 may be disposed 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 at least partially overlap the left and right batteries 101 and 102 when viewed in the left-right direction. Thereby, the influence of the disturbance from the outer side in the left and right direction on the left and right batteries 101 and 102 is suppressed by the left and right rear cushion 28. For example, load input to the left and right batteries 101, 102 during a fall or a side collision is suppressed by the left and right rear cushions 28.

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

The PCU 120 is flat with a reduced thickness. The PCU 120 is disposed, for example, behind the front wall portion 71 of the rear vehicle body cover 70 and inclined substantially parallel to the front wall portion 71. A plurality of heat radiating fins 120 a are erected on the upper surface of the PCU 120. A traveling wind inlet 71a formed in the front wall portion 71 of the rear vehicle body cover 70 is disposed in front of the radiating fin 120a. Thereby, the PCU 120 is effectively cooled by the traveling wind taken from the traveling wind intake 71a, and the other electrical components 130 are also cooled together. The traveling wind inlet 71a is not limited to the front wall 71 and may be provided on the side wall 74 or the upper wall 72, and may have a wind guide hood. An exhaust port for discharging the traveling 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 in a side view. The junction box 123 and the DC-DC converter 126 have a flat shape with reduced vertical thickness. The junction box 123 and the DC-DC converter 126 are supported substantially horizontally on a support member that extends between the left and right rear lower side frames 26, for example.

A charger 125 is disposed 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 that extends between the left and right rear side frames 27 in an inclined posture substantially parallel to the rear side frame 27. The charger 125 is arranged near the rear end of the rear vehicle body 5 so that the user can easily access it. Further, the charging work such as drawing out the charging cord from the charger 125 or connecting an external charging cord is facilitated. The charger 125 is arranged in the vicinity of the rear end of the rear vehicle body 5 to enhance heat dissipation during battery charging.

The charger 125 is disposed behind the battery 100. For this reason, the influence of the disturbance from the back with respect to the battery 100 (left-right battery 101,102) is suppressed by the charger 125. FIG. For example, a load input to the left and right batteries 101 and 102 at the time of a rear collision is suppressed by the charger 125.

The PCU 120 is arranged, for example, straddling the left and right center line CL2 of the vehicle body. For example, the junction box 123 and the DC-DC converter 126 are arranged side by side on the left and right sides of the vehicle body center line CL2. The charger 125 is disposed, for example, straddling the left and right center line CL2 of the vehicle body.

These electrical components 130 are disposed on the inner side in the left-right direction than the outer portion of the rear vehicle body 5 (the left and right outer ends of the left and right rear wheels 4a and 4b). Thereby, the influence by the disturbance from the vehicle outer side with respect to the electrical component 130 is suppressed.
The electrical component 130 is disposed above the rear wheel axle 42 and above the left and right rear lower side frames 26 positioned at the lower end of the rear vehicle body frame 21. Thereby, the ground height of the electrical component 130 is ensured, the influence of disturbance from the lower side of the vehicle (road surface side) is suppressed, and the flooding from the road surface side is also suppressed.

Of the electrical components 130, those in the drive system such as the left and right batteries 101, 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 the concentrated arrangement on the front side of the rear vehicle body 5.
The electrical components 130 are arranged together in the rear vehicle body 5 to suppress the length of the wiring connecting the components, and to suppress the occurrence of wear due to the bending or interference of the wiring due to the relative movement of the components.

Since the electrical component 130 is mounted on the rear vehicle body 5 that is the non-oscillating side vehicle body, it is possible to suppress the weight of the electrical component 130 from affecting the oscillation of the front vehicle body 3 that is the oscillation side vehicle body. The effect on turning performance is suppressed.

(Battery insertion and removal)
2 and 4, left and right openings 77 are formed in front wall portion 71 of rear body cover 70 at positions facing upper surfaces 101c and 102c of left and right batteries 101 and 102 in the insertion / removal direction (longitudinal direction), respectively. Is formed. The left and right openings 77 open the battery storage 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.

Referring also 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 in 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, 102 in the insertion / removal direction. For this reason, the left and right batteries 101 and 102 cannot be inserted or removed. In order to allow the left and right batteries 101, 102 to be inserted and removed, it is necessary to swing the front vehicle body 3 to the swinging state B (see FIG. 8) and to retract the rear inclined portion 9a from the position facing the opening 77. is there.

Referring to FIG. 8, the front vehicle body 3 enters the swinging state B by rotating from the upright state A (see FIG. 7) by a predetermined angle θ around the axis C <b> 1 of the rotating mechanism 50. In the swinging state B, the front vehicle body 3 retracts the rear inclined portion 9a from the position facing the opening 77, and allows the left and right batteries 101, 102 to be inserted and removed. At this time, the swing angle θ of the front vehicle body 3 is in an angle range in which the rotation mechanism 50 can lock the relative rotation. Thereby, 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 respectively provided with lids 78 that can be opened and closed. By providing the lid 78 in the left and right opening 77 facing the front of the vehicle, entry of foreign matter, rainwater, or the like to the battery side can be suppressed. The lid 78 may be formed with a traveling air intake that allows intake of traveling air (cooling air) toward the battery. The lid 78 may be locked 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 cannot be attached to and detached from the left and right batteries 101 and 102 by the rear inclined portion 9a of the front vehicle body 3. The left and right openings 77 allow the left and right batteries 101 and 102 to be attached or detached when the front vehicle body 3 is swung to the left or right to be in the swung state B. When the front vehicle body 3 is in the swinging state B, the rear inclined portion 9a is retracted from the opening 77 opposite to the swinging 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 left opening 77 of the rear vehicle body 5 is exposed forward, and the left battery 101 can be attached and detached. On the other hand, although illustration is omitted, when the front vehicle body 3 is rolled to the left side, the right opening 77 of the rear vehicle body 5 is exposed forward, and the right battery 102 can be attached and detached. Since either of the left and right batteries 101 and 102 can be attached / detached from the side opposite to the tilt direction (swing direction) of the front vehicle body 3, a user standing on the side opposite to the tilt direction of the front vehicle body 3 can connect the left and right batteries 101 and 102. Easy to put on and take off.

As described above, the state in which the left and right batteries 101, 102 can be detached and the state in which the left and right batteries 101, 102 cannot be detached are switched according to the relative swinging of the front and rear vehicle bodies 3, 5. For this reason, when the electric vehicle 1 is parked, the left and right batteries 101 and 102 can be securely attached and detached only by performing a parking lock operation, and the anti-theft property of the battery 100 is improved. Since the periphery of the battery 100 is covered with the rear vehicle 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 swinging of the front vehicle body 3 by operating the parking lever 91. The parking lever 91 is locked in accordance with the main switch being turned off at the lock 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 removed by the following procedure.

That is, the front lever 3 is set to the upright state A and the parking lever 91 is operated to the lock position, 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 in which they cannot be taken out. In order to release the rocking lock of the front vehicle body 3 (the lock for taking out the left and right batteries 101 and 102) by operating the parking lever 91 from this state, an operation to turn on the main switch is required.

Thus, the electric vehicle 1 can be locked in a state in which the left and right batteries 101 and 102 cannot be taken out during parking or the like, and the anti-theft property of the battery 100 is improved. And since the rocking lock mechanism 93 (parking lock device 90) of the front vehicle body 3 that is banked when the electric vehicle 1 turns is used, the battery 100 is locked for the anti-theft, so that the anti-theft lock can be achieved with a simple configuration. The structure can be realized.

As described above, the electric vehicle 1 in the above embodiment includes 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 C <b> 1 that faces the vehicle longitudinal direction. A rotating mechanism 50 connected to the electric motor 30 so as to be relatively swingable, an electric motor 30 for traveling the vehicle, and a battery 100 for supplying electric power to the electric motor 30. The rear vehicle body 5 includes a battery storage portion 76 that stores the battery 100 in a detachable manner. The battery storage unit 76 includes an opening 77 through which the battery 100 (left and right batteries 101, 102) can be inserted and removed. The front vehicle body 3 includes an insertion / removal restricting portion (rear inclined portion 9 a) that is disposed opposite to the opening 77 of the battery storage portion 76 and can restrict the insertion and removal of the battery 100. The insertion / removal restricting portion is disposed so as to face the opening 77 of the battery housing portion 76 in the upright state A in which the front vehicle body 3 and the rear vehicle body 5 are aligned with the left and right center lines CL1 and CL2 when viewed in the front-rear direction. The insertion and removal of the battery 100 is regulated. The insertion / removal restricting portion is moved 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 are relatively rocked by a predetermined angle θ around the axis C1. The battery 100 is retracted to allow the battery 100 to be inserted and removed.

According to this configuration, the battery 100 mounted on the rear vehicle body 5 exhibits the following action by the insertion / removal restricting portion provided on the front vehicle body 3. 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 restricted from being inserted into and removed from the battery storage unit 76. The battery 100 is allowed to be inserted into and removed from the battery storage portion 76 in the swinging state B in which the front vehicle body 3 and the rear vehicle body 5 are relatively rocked exceeding the specified angle θ. Thereby, in the parking lock state in which the relative swinging of the front vehicle body 3 and the rear vehicle body 5 is restricted, the battery 100 is maintained in a non-detachable state. For this reason, when parking the electric vehicle 1, it becomes possible to maintain the battery 100 in the state which cannot be attached or detached, 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 an increase in the configuration.

In the electric vehicle 1, the turning mechanism 50 is a swing restricting portion (swing lock mechanism 93) for restricting relative swinging of the front vehicle body 3 and the rear vehicle body 5 about the axis C1 based on operation of a main switch. ).
According to this configuration, the relative rocking of the front vehicle body 3 and the rear vehicle body 5 can be restricted by the rocking lock mechanism 93 provided in the rotation mechanism 50. Using the swing restricting portion, it is possible to maintain a state in which the battery 100 is not attachable / detachable based on the operation of the main switch. For this reason, the swing restricting portion can be used as a lock for preventing theft of the battery 100, and the convenience can be improved while suppressing an increase in the configuration. Specifically, when the main switch is turned off, the parking lever 91 cannot be operated to the unlock position (as a result, the swing of the front vehicle body 3 is restricted). For this reason, the state (prevention of theft) where the battery 100 cannot be attached or detached can be maintained.
Note that a mechanism or an actuator that is linked to the operation of the main switch may be provided, and the swing restricting unit may be directly operated according to the on / off state 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 grounded state. The battery housing portion 76 is provided in the rear vehicle body 5. The insertion / removal restricting portion is provided in the front vehicle body 3. In the swing state B in which the front vehicle body 3 swings with respect to the rear vehicle body 5, the insertion / removal restricting portion retreats from a position facing the opening 77 of the battery housing portion 76 to insert the battery 100. Allow escape.
According to this configuration, the swing of the front vehicle body 3 that is banked during turning can be locked using the swing restricting portion. By locking the swing of the front vehicle body 3 by this swing restricting portion, an anti-theft lock that restricts the insertion and removal of the battery 100 can be achieved. Compared with the case where the anti-theft lock structure for the battery 100 is provided exclusively, the anti-theft lock for the battery 100 can be realized with a simple configuration.

In the electric vehicle 1, the rear vehicle body 5 includes a cargo bed 75 at least a part of which is provided above the rear wheels 4 a and 4 b, the battery storage portion 76 provided below the cargo bed 75, and the battery storage portion 76. And an opening / closing part (lid 78) for opening and closing an opening 77 that allows the battery 100 to be inserted and removed.
According to this configuration, by providing the battery storage portion 76 below the loading platform 75, the height at which the battery 100 is lifted when the battery 100 is attached or detached can be suppressed. For this reason, it is possible to easily attach and detach the heavy battery 100. In addition, by providing an opening / closing part in the opening 77 of the battery storage part 76, it is possible to suppress the entry of foreign matter into the battery storage part 76 and to 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 disposing the charger 125 behind the battery storage portion 76 in the rear vehicle body 5, the charger 125 is disposed near the rear end of the entire vehicle body, and access to the charger 125 is facilitated. The battery 100, which is a high-voltage component and a heavy object, is disposed relatively near the front and rear center of the entire vehicle body, so that the influence of disturbance from the rear can be suppressed and the mass can be concentrated.

In the electric vehicle 1, the battery storage unit 76 includes battery cases 103 and 104 that allow the battery 100 to be inserted and removed in inclined directions C41 and C42 that are 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 tilt directions C41 and C42.
According to this configuration, the battery 100 that is a heavy object can be lifted more easily than when the battery 100 is inserted and removed in the vertical direction. In addition, since the battery cases 103 and 104 receive at least part of the battery weight, the battery 100 can be easily attached and detached.

In the electric vehicle 1, the rear vehicle body 5 connects the rear vehicle body frame 21, the swing unit 40 that supports the rear wheels 4 a and 4 b to be vertically swingable, and the rear vehicle body frame 21 and the swing unit 40. And a rear cushion 28 disposed behind or on the side of the battery 100.
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 of the battery 100. For this reason, the protection property 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 4 a and 4 b so as to swing up and down. The electric motor 30 is provided at a position avoiding the rear wheels 4 a and 4 b in the side view of the swing unit 40.
According to this configuration, access to the electric motor 30 from the side of the vehicle is easier than in the case where the electric motor 30 is arranged so as to overlap the rear wheels 4a and 4b in a side view, such as an in-wheel motor. Become. For this reason, the assembly | attachment property and maintenance property of the electric motor 30 can be improved.

In the electric vehicle 1, the electric motor 30 is disposed closer to the swing shaft 41 than the central portion 40 a in the length direction of the swing unit 40.
According to this configuration, the heavy electric motor 30 is provided at a position near the swing shaft 41 in the swing unit 40. For this reason, the operativity of the swing unit 40 can be improved.

In the electric vehicle 1, the electric motor 30 may be disposed above the swing unit 40.
According to this configuration, by providing the electric motor 30 on the upper portion of the swing unit 40, it is possible to suppress disturbance and flooding 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 thereto. The present invention is widely applicable to saddle-ride type vehicles capable of relatively rotating front and rear vehicle bodies, including vehicles without a roof. The saddle riding type vehicle includes all vehicles on which the driver rides across the vehicle body, and includes not only motorcycles (including motorbikes and scooter type vehicles), but also three-wheelers (in addition to front and rear two wheels). , Including two front wheels and one rear wheel vehicle) or four wheel vehicles.

What is necessary is just the structure which mounts the electrical component 130 on the spring of the rear suspension 29. FIG. For example, a rear frame that extends rearwardly 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 disposed in front of the battery 100. In this case, a single rear cushion 28 may be provided. The rear cushion 28 may be coupled to the vehicle body via a link mechanism.

The battery 100 is not limited to the rear vehicle body 5 that is the oscillated side vehicle body, and may be configured to be mounted on the front vehicle body 3 that is the oscillating side vehicle body. That is, a configuration in which the battery 100 is mounted below the seat 7 and the battery 100 can be inserted and removed when the front and rear vehicle bodies 3 and 5 are relatively swung. Further, the battery 100 may be mounted on each of the front and rear vehicle bodies 3 and 5 so that the batteries 100 can be inserted and removed when the front and rear vehicle bodies 3 and 5 are relatively swung. Also in these cases, 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 component of the embodiment with a known component.

DESCRIPTION OF SYMBOLS 1 Electric vehicle 2 Front wheel 3 Front vehicle body (vehicle body front structure)
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 restriction part)
21 Rear body frame 28 Rear cushion 30 Electric motor 40 Swing unit (swing arm)
40a Center part C2 Length direction 41 Swing shaft 50 Rotating mechanism C1 Axis line 75 Loading platform 76 Battery storage part 77 Opening 78 Lid (opening / closing part)
93 Oscillation lock mechanism (Oscillation regulating part)
100 Battery 101, 102 Left and right battery C41, C42 Inclination direction 100A Battery case 103, 104 Left and right battery case 125 Charger

Claims (10)

1. A vehicle body front structure (3);
   A vehicle body rear structure (5) separated from the vehicle body front structure (3);
   A turning mechanism (50) for connecting the vehicle body front structure (3) and the vehicle body rear structure (5) so as to be relatively swingable about an axis (C1) facing the vehicle longitudinal direction;
   An electric motor (30) for running the vehicle;
   A battery (100) for supplying electric power to the electric motor (30), and an electric vehicle (1) comprising:
   At least one of the vehicle body front structure (3) and the vehicle body rear structure (5) includes a battery storage unit (76) that stores the battery (100) in a removable manner.
   The battery storage portion (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 disposed so as to face the opening (77) of the battery storage unit (76) so that insertion / removal of the battery (100) can be restricted. Electric vehicle provided with an appropriate insertion / removal restricting portion (9a).
2. The rotation mechanism (50) is a swing restriction that restricts relative swing of the vehicle body front structure (3) and the vehicle body rear structure (5) about the axis (C1) based on an operation of a main switch. The electric vehicle according to claim 1, comprising a portion (93).
3. The vehicle body rear structure (5) includes a pair of left and right rear wheels (4a, 4b) for maintaining a ground contact state.
   The battery housing (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 rocking of the vehicle body front structure (3) rocked with respect to the vehicle body rear structure (5). The electric vehicle according to claim 2, wherein in the state (B), the battery (100) is allowed to be inserted and removed by retreating from a position facing the opening (77) of the battery housing (76).
4. The vehicle body rear structure (5) includes a loading platform (75) provided at least in part above the rear wheels (4a, 4b), and a battery housing portion (76) provided below the loading platform (75). An opening / closing part (78) for opening and closing an opening (77) in which the battery (100) can be inserted and removed from the battery storage part (76). Electric vehicle.
5. The electric vehicle according to claim 4, wherein the rear body structure (5) includes a charger (125) behind the battery housing (76).
6. The said battery accommodating part (76) is provided with the battery case (100A) supported so that the said battery (100) may be inserted / removed in the inclination direction (C41, C42) inclined with respect to the perpendicular direction. 5. The electric vehicle according to 5.
7. 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) connecting the arm (40),
   The rear cushion (28) is arranged so that at least a part of the rear cushion (28) overlaps the battery (100) in the front-rear direction behind the battery (100) or in a side view on the side of the battery (100). 100) The electric vehicle according to any one of claims 4 to 6, wherein the electric vehicle is disposed so as to at least partially overlap with 100).
8. The vehicle body rear structure (5) includes a swing arm (40) that supports the rear wheels (4a, 4b) so as to swing up and down.
   The electric vehicle according to any one of claims 4 to 7, wherein the electric motor (30) is provided at a position avoiding the rear wheels (4a, 4b) in the swing arm (40) in a side view.
9. The electric vehicle according to claim 8, wherein the electric motor (30) is disposed closer to the swing shaft (41) than the central portion (40a) in the length direction (C2) of the swing arm (40).
10. The electric vehicle according to claim 8 or 9, wherein the electric motor (30) is disposed on an upper portion of the swing arm (40).

Images