CN111247062B - Storage battery storage device for vehicle - Google Patents

Abstract

The invention provides a storage battery storage device for a vehicle. The battery storage device is provided with a terminal displacement mechanism (45). The terminal displacement mechanism (45) displaces the case-side connection terminal (43) between a connection position (P1) at which the case-side connection terminal is connected in contact with the terminal section (41) of the battery (62A, 62B) and a retracted position (P2) separated from the connection position (P1). Among the plurality of terminal pins of the case-side connection terminal (43), a high-voltage terminal pin (140) is disposed at an end in the direction in which the plurality of terminal pins are arranged. A power cable (142) is connected to the high-voltage terminal pin (140), and the connection state is maintained by a fixing means (146).

Description

Storage battery storage device for vehicle

Technical Field

The present invention relates to a battery storage device for storing a battery in a detachable vehicle.

Background

In an electric two-wheeled vehicle or the like, a battery is detachably mounted on the vehicle, and the battery may be detached from the vehicle body at the time of charging the battery or the like.

In the battery housing device used in such a vehicle, a case-side connection terminal is provided in a protruding manner inside a battery case provided in a vehicle body frame. In the case of this battery housing device, if the battery is inserted into the battery case from above at the time of mounting the battery, the terminal portion of the battery is connected to the case-side connection terminal in the battery case.

However, in the above-described battery storage device, when the battery is inserted into the battery case, the operator needs to appropriately adjust the insertion behavior of the battery in order to suppress the load acting on the terminal portion of the battery and the case-side connection terminal.

Prior art documents

Patent document

Patent document 1: international publication No. 2015/068753

Disclosure of Invention

Problems to be solved by the invention

The problem to be solved is to reduce a load acting on a terminal portion of a battery and a case-side connection terminal when the battery is inserted into a battery case, and to stably maintain a connection state of a power cable to the case-side connection terminal.

Means for solving the problems

A vehicle battery storage device according to an aspect of the present invention includes: a battery case (42) that houses batteries (62A, 62B); a case-side connection terminal (43) connected to a terminal portion (41) of the battery (62A, 62B) housed in the battery case (42), wherein the battery housing device of the vehicle is provided with a terminal displacement mechanism (45) that displaces the case-side connection terminal (43) between a connection position (P1) at which the case-side connection terminal is brought into contact with the terminal portion (41) of the battery (62A, 62B) and a retracted position (P2) separated from the connection position (P1), the case-side connection terminal (43) is configured by arranging a plurality of terminal pins (140, 141) in a row in a lateral direction, a high-voltage terminal pin (140) of the plurality of terminal pins (140, 141) is disposed at an end portion in an arrangement direction of the plurality of terminal pins (140, 141), and a power cable (142) is connected to the high-voltage terminal pin (140), and maintains the connection state by the fixing unit (146).

According to the above configuration, when the batteries (62A, 62B) are mounted on the vehicle, the case-side connection terminal (43) is displaced to the retracted position in advance. The batteries (62A, 62B) are inserted into the battery case (42) in this state. When the batteries (62A, 62B) are inserted into the battery case (42) in this manner, the terminal displacement mechanism (45) is operated to displace the case-side connection terminal (43) to the connection position (P1). As a result, the case-side connection terminal (43) is displaced to the connection position (P1), and the case-side connection terminal (43) is connected in contact with the terminal section (41) of the batteries (62A, 62B) housed in the battery case (42). When the batteries (62A, 62B) are inserted into the battery case (42), the terminal parts (41) of the batteries (62A, 62B) do not directly contact the case-side connection terminals (43), and therefore, regardless of the insertion behavior of the batteries (62A, 62B) by an operator, it is possible to avoid a large load from acting on the terminal parts (41) of the batteries (62A, 62B) and the case-side connection terminals (43).

The high-voltage terminal pin (140) of the case-side connection terminal (43) is connected to the power cable (142) at the end in the direction in which the plurality of terminal pins (140, 141) are arranged, and the connection state is maintained by the fixing means (146). Therefore, even if the housing-side connection terminal (43) is lifted by the terminal displacement mechanism (45), the connection state of the power cable (142) can be stably maintained. Furthermore, since the high-voltage terminal pin (140) is disposed at the end in the arrangement direction of the plurality of terminal pins (140, 141), the fixing operation by the fixing means (146) can be easily performed.

In the battery housing device for a vehicle according to an aspect of the present invention, a shielding portion (154) is disposed outside the fixing unit (146).

In this case, since the outside of the fixing means (146) is covered with the shielding part (154), it is possible to prevent the fixing means (146) from being hit from the outside by mischief, carelessness, or the like.

In the battery housing device for a vehicle according to one aspect of the present invention, the fixing means is constituted by a bolt (146) screwed from the outside in the arrangement direction of the terminal pins (140, 141), and the shielding portion (154) is disposed outside in the screwing direction of the bolt (146).

In this case, since the shielding portion (154) is provided on the outside in the screwing direction of the bolt (146), it is possible to prevent a tool such as a screwdriver from coming into contact with the bolt (146) due to mischief, carelessness, or the like.

In the battery housing device for a vehicle according to one aspect of the present invention, the terminal displacement mechanism (45) includes a terminal holding member (149) that holds and moves up and down the case-side connection terminal (43), and the shielding portion (154) is integrally provided in the terminal holding member (149).

In this case, when the housing-side connection terminal (43) is moved up and down together with the terminal holding member (149) by the operation of the terminal displacement mechanism (45), the shielding portion (154) is also moved up and down together with the terminal holding member (149). Therefore, when the case-side connection terminal (43) stops at any one of the retreat position (P2) and the connection position (P1), the outside of the fixed unit (146) can be covered by the shielding part (154) in the same manner.

In the battery housing device for a vehicle according to an aspect of the present invention, the terminal displacement mechanism (45) includes a terminal holding member (149) that holds and moves up and down the case-side connection terminal (43), and a plurality of cables including the power cables (142) connected to the plurality of terminal pins (140, 141) are supported by a cable support bracket (201) integrally provided in the terminal holding member (149).

In this case, since the cable connected to the terminal pins (140, 141) of the case-side connection terminal (43) is supported by the terminal holding member (149) via the cable support bracket (201), the cable is lifted and lowered integrally with the case-side connection terminal (43) when the terminal holding member (149) is lifted and lowered. Therefore, in the case of this method, a load is less likely to act on the connection portion between the cable and the case-side connection terminal (43).

In a battery housing device for a vehicle according to an aspect of the present invention, a cable support bracket (201) partially overlaps a connection portion between the power cable (142) and the high-voltage terminal pin (140) in a vertical direction, and extends downward from the connection portion.

In this case, when the terminal holding member (149) is lowered, the cable support bracket (201) can prevent the interference between the connection part of the power cable (142) and the high-voltage terminal pin (140) and the surrounding members.

Effects of the invention

The battery housing device for a vehicle according to the present invention can connect the case-side connection terminal to the terminal portion of the battery after the battery is inserted into the battery case, and therefore, can reduce the load acting on the terminal portion of the battery and the case-side connection terminal when the battery is inserted.

In addition, in the battery housing device for a vehicle according to the present invention, the terminal pins of the case-side connection terminal at a high voltage are connected to the power cable at the end in the arrangement direction of the plurality of terminal pins, and the connection state is maintained by the fixing means, so that the connection state of the power cable can be stably maintained even if the case-side connection terminal is lifted.

Drawings

Fig. 1 is a left side view of the saddle-ride type electric vehicle of the embodiment.

Fig. 2 is a left side view of the saddle-ride type electric vehicle of the embodiment with a part of components removed.

Fig. 3 is a left side view of a vehicle body frame of the saddle-ride type electric vehicle of the embodiment.

Fig. 4 is a perspective view of a vehicle body frame of the saddle-ride type electric vehicle according to the embodiment.

Fig. 5 is a plan view of a vehicle body frame of the saddle-ride type electric vehicle according to the embodiment.

Fig. 6 is a sectional view of the saddle-ride type electric vehicle of the embodiment taken along line VI-VI of fig. 1.

Fig. 7 is a perspective view of the main arm of the embodiment as viewed from the left front upper side.

Fig. 8 is an enlarged side view of a part of fig. 2 of the saddle-ride type electric vehicle according to the embodiment.

Fig. 9 is a bottom view of the saddle-ride type electric vehicle of the embodiment.

Fig. 10 is a sectional view of the saddle-ride type electric vehicle of the embodiment taken along the line X-X of fig. 8.

Fig. 11 is a sectional view of the saddle-ride type electric vehicle of the embodiment taken along line XI-XI of fig. 9.

Fig. 12 is a perspective view of a battery support frame of the saddle-ride type electric vehicle according to the embodiment.

Fig. 13 is a perspective view of the battery storage device according to the embodiment in a state where the battery is not fixed.

Fig. 14 is a side view of a part of the battery housing apparatus according to the embodiment in a state where the battery is not fixed.

Fig. 15 is a perspective view of the battery storage device according to the embodiment in a battery fixed state.

Fig. 16 is a side view of a part of the battery housing apparatus according to the embodiment in a battery fixing state.

Fig. 17 is a cross-sectional view of the battery housing apparatus according to the embodiment taken along line XVII-XVII in fig. 13.

Fig. 18 is a perspective view showing a terminal support portion of the battery housing device according to the embodiment.

Fig. 19 is a perspective view showing a battery fixing portion of the battery housing device according to the embodiment.

Fig. 20 is a side view (a), a perspective view (b), and a plan view (c) of the battery storage device according to the embodiment when a battery is inserted.

Fig. 21 is a perspective view showing a battery fixing portion of the battery housing device according to the embodiment.

Fig. 22 is a diagram collectively showing a side view (a), a perspective view (b), and a plan view (c) of the battery storage device according to the embodiment when the battery lock operation is performed.

Fig. 23 is a sectional view similar to fig. 17 when the battery lock operation of the battery storage device according to the embodiment is performed.

Fig. 24 is a view collectively showing a side view (a), a perspective view (b), and a plan view (c) of the battery storage device according to the embodiment when the battery lock operation is performed.

Fig. 25 is a sectional view similar to fig. 17 when the battery lock operation of the battery storage device according to the embodiment is performed.

Fig. 26 is a sectional view similar to fig. 17 when the battery locking of the battery storage device according to the embodiment is completed.

Fig. 27 is a partial sectional side view of the battery housing apparatus and the seat in the embodiment when the battery locking is not completed.

Fig. 28 is a partially sectional side view of the battery housing apparatus of the embodiment and the seat when the battery locking is completed.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. The directions such as front, rear, left, and right, which will be described below, are the same as the directions of the vehicle, which will be described below, unless otherwise specified. In the drawings used in the following description, arrow FR indicating the front of the vehicle, arrow LH indicating the left side of the vehicle, and arrow UP indicating the upper side of the vehicle are shown at appropriate positions.

Fig. 1 is a diagram showing a left side surface of an electric motorcycle 1 which is one embodiment of a saddle-ride type electric vehicle. The motorcycle 1 of the present embodiment is a scooter type vehicle having a step 9 for putting a foot of a rider seated on a seat 8.

The motorcycle 1 includes a front wheel 3 as a steering wheel and a rear wheel 4 as a driving wheel. The front wheel 3 is rotatably supported by a pair of left and right front forks 6. Also, the front wheels 3 can be steered by operating the handle 2. A front fender 50F that covers the upper side of the front wheel 3 is supported by the front fork 6.

The rear wheel 4 is supported on the rear portion of the swing arm 20, and the swing arm 20 is swingably supported on the vehicle body frame F. The motorcycle 1 of the present embodiment is a unitary swing type motorcycle, and an electric motor 30 for driving the vehicle and a speed reduction mechanism 35 (see fig. 6) for reducing the speed of the driving force of the electric motor 30 and transmitting the reduced speed to the rear axle 4a are mounted on the swing arm 20. A rear fender 50R that covers the rear upper portion of the rear wheel 4 is supported at the rear end portion of the swing arm 20 via a fender support arm 40. A lower end portion of the rear damper 7 as a rear suspension member is connected to the fender support arm 40.

The motorcycle 1 includes a pair of left and right steps 9 for putting a foot of a driver seated in the seat 8, and a center tunnel 10 extending in the vehicle front-rear direction between the left and right steps 9. The center tunnel 10 is formed lower than the seat 8 on the front side of the seat 8. The space above the center tunnel 10 is located between the operation handle 2 and the seat 8, and forms a straddling space when the driver straddles the vehicle body.

Fig. 2 is a left side view of the motorcycle 1 with the seat 8 and the hood removed. Fig. 3 is a left side view of the body frame F of the motorcycle 1, and fig. 4 is a left front top view of the body frame F. Fig. 5 is a view of the vehicle body frame F as viewed from above.

The body frame F is formed by integrally joining a plurality of steel materials by welding or the like. The body frame F includes a head pipe 12 at a front end portion. The head pipe 12 holds the front wheel 3 so as to be steerable via a steering lever 11 (see fig. 1 and 2) and the left and right front forks 6.

The vehicle body frame F further includes a pair of left and right upper frames 13 extending diagonally rearward and downward from a substantially middle region in the vertical direction of the head pipe 12, a pair of left and right lower frames 14 extending downward from a lower region of the head pipe 12, extending rearward of the vehicle body, and extending upward in a slightly inclined state rearward from rear end portions thereof, and a pair of left and right seat frames 15 extending diagonally rearward and upward from substantially middle positions in the longitudinal direction of the left and right upper frames 13. The lower frame 14 includes a lower frame portion 14a extending rearward from the head pipe 12, and a rear frame portion 14b extending upward from a rear portion of the lower frame portion 14 a.

The upper end portions of the left and right rear frame portions 14b are coupled to the front-rear direction substantially middle positions of the left and right corresponding seat frames 15. A seat 8 on which an occupant sits is attached to an upper portion of the left and right seat frames 15. The seat 8 can be opened and closed up and down with the front end side serving as a hinge fulcrum.

The rear end portions of the left and right upper frames 13 are coupled to the vicinity of the lower ends of the left and right corresponding rear frame portions 14 b.

The right and left lower frames 14 connect the upper region of the lower extension portion 14a-1 of the lower frame portion 14a and the rear region of the rear extension portion 14a-2 via the intermediate frame 16. The lower extensions 14a-1 of the left and right lower frame portions 14a are connected to each other by a front cross member 18. The front end regions of the rear extensions 14a-2 of the left and right lower frame portions 14a are connected to each other by a front lower cross member 19. The rear end regions of the rear extensions 14a-2 of the left and right lower frame portions 14a are connected to each other by a cross frame 51. The front cross member 18 and the front lower cross member 19 are formed of a round steel pipe having a smaller diameter than the lower frame 14. The front cross member 18 extends linearly in the vehicle width direction, and the front lower cross member 19 extends in a curved shape protruding forward. The lateral frame 51 extends linearly in the vehicle width direction and is formed of a round steel pipe having substantially the same diameter as the lower frame 14.

The left and right seat frames 15 have front regions interconnected by a center cross member 52, and rear end regions interconnected by a rear cross member 53 and a rear cross member 54. The center cross member 52 extends in a curved shape protruding upward and frontward, and the rear cross member 53 extends linearly in the vehicle width direction. The center cross member 52 is formed of a round steel pipe having a smaller diameter than the seat frame 15, and the rear cross member 53 is formed of a round steel pipe having a diameter substantially the same as the seat frame 15.

The rear frame portions 14b of the left and right lower frames 14 are coupled to rear regions of the left and right corresponding seat frames 15 via support frames 17. The rear regions of the left and right support frames 17 are connected to each other by a rear cross member 55. The rear cross member 55 extends in a curved shape protruding downward. The rear cross member 55 is formed of a round steel pipe having substantially the same diameter as the support frame 17.

Fig. 6 is a cross-sectional view of the motorcycle 1 taken along line VI-VI in fig. 1.

The swing arm 20 includes a main arm 21 extending from the front of the rear wheel 4 toward the left side of the rear wheel 4, and a sub arm 22 extending from the front right side of the main arm 21 toward the right side of the rear wheel 4 while being bent inward in the vehicle width direction. In the figure, reference symbol CL denotes a center line of the vehicle in the vehicle width direction.

The main arm 21 is provided with a motor housing 23 for housing the electric motor 30 and a speed reduction mechanism housing 24 for housing the speed reduction mechanism 35.

The motor housing 23 includes an inner cover 23a covering the electric motor 30 from the inside in the vehicle width direction and an outer cover 23b covering the electric motor 30 from the outside in the vehicle width direction.

The inner cover 23a has a box shape that opens outward in the vehicle width direction. The inside cover 23a is integrally formed with the arm main body portion 21a of the main arm 21. The outer cover 23b is coupled to the inner cover 23a by a fastening member such as a bolt.

Fig. 7 is a view of the main arm 21 viewed from the left-side front upper side.

As shown in fig. 6 and 7, the main arm 21 includes an arm base 21c extending in the vehicle width direction in front of the rear wheel 4, and an arm body 21a extending from a left end of the arm base 21c toward the vehicle rear side. The sub-arm 22 is coupled to the right side surface of the arm base 21 c. Projecting pieces 21b projecting forward are provided at both right and left end portions of the arm base 21 c. The left and right projecting pieces 21b are formed with insertion holes 56 penetrating in the vehicle width direction. A pivot 57 described in detail later is rotatably held in the insertion hole 56. The upper surfaces from the left and right projecting pieces 21b to the arm base 21c extend obliquely toward the rear upper side. This portion serves as an upward inclined portion 58 extending obliquely rearward and upward from a connecting portion connected to the pivot shaft 57.

As shown in fig. 6, the electric motor 30 is held by the main arm 21 of the swing arm 20 and is disposed on the left side of the rear wheel 4. The electric motor 30 is an inner rotor type motor, and includes an inner rotor 32 having a motor output shaft 31, and a stator 33. The electric motor 30 is disposed in a rear region of the main arm 21 of the swing arm 20.

The motor output shaft 31 is pivotally supported by the main arm 21 so as to extend in the vehicle width direction. The motor output shaft 31 has an axis Cm1 (hereinafter referred to as "motor axis Cm 1") parallel to the rear wheel axis CR (the axis of the rear wheel axle 4 a). Reference numerals 34a to 34c in fig. 6 denote bearings that rotatably support the motor output shaft 31.

The inner rotor 32 includes: a cylindrical inner rotor main body 32 a; and a magnet 32b provided on the outer peripheral surface of the inner rotor body 32 a. The radially central portion of the inner rotor main body 32a is spline-coupled to the motor output shaft 31. A detected body 32c is attached to an outer peripheral surface of an inner end portion of the inner rotor body 32a in the vehicle width direction.

The stator 33 includes: an annular stator yoke 33a fixed to the outer peripheral wall of the inner cover 23 a; a plurality of teeth 33b engaged with the stator yoke 33a and radially arranged with respect to the motor axis Cm 1; and a coil 33c wound around each tooth 33 b. A rotation sensor 33d for detecting the rotational position of inner rotor 32 by detecting the passage of detected body 32c is attached to stator yoke 33 a.

Fig. 8 is an enlarged view of the vicinity of the support portion of the swing arm 20 shown in fig. 2.

As shown in the drawing, an electric cable 60 is connected to the electric motor 30. The electric cable 60 is a cable that electrically connects the power supply unit on the vehicle body frame F side and the three-phase coils 33c of the electric motor 30, and the periphery of the bundle of the three-phase electric wires 60u, 60v, and 60w is covered with a protective material 61 (see fig. 11). The thickness of the electric cable 60 is sufficiently thick, and the maximum outer diameter of the protective material 61 is larger than the outer diameter of the pivot 57. The electric cable 60 connected to the electric motor 30 is drawn out forward along the vehicle-widthwise outer side surface of the arm main body portion 21a of the swing arm 20. The wiring portion of the electric cable 60 on the side of the arm body portion 21a is covered by an arm cover 39 attached to the arm body portion 21a as shown in fig. 8.

As shown in fig. 2, the electric power supply unit of the electric motor 30 includes a pair of storage batteries 62A and 62B that store electric power, and a Power Drive Unit (PDU)63 that converts the dc power of the storage batteries 62A and 62B into ac power. The three-phase electric wires 60u, 60v, and 60w of the electric cable 60 are connected to the power drive unit 63. The batteries 62A and 62B and the power drive unit 63 are connected to each other by another electric cable, not shown.

The power drive unit 63 is disposed in a region surrounded by the left and right lower frames 14a of the lower frame 14 and the left and right upper frames 13 in the vehicle body frame F, and is located in a region inward in the vehicle width direction of the left and right intermediate frames 16. The power drive unit 63 is disposed in a space portion below the center tunnel 10 in a slightly forward tilted state.

The batteries 62A and 62B are arranged in a front-rear arrangement inside a battery storage device 64 provided below the seat 8. Both the batteries 62A and 62B are formed in a substantially rectangular parallelepiped shape and have the same configuration. The batteries 62A and 62B are connected in series, and thereby a predetermined high voltage (for example, 48V to 72V) is obtained. For example, the batteries 62A and 62B are configured by lithium ion batteries as chargeable and dischargeable energy storages.

The electric motor 30 is controlled by a control unit, not shown. The control unit receives information from a throttle opening sensor and the like, not shown, and outputs a predetermined control signal to the driver of the electric motor 30 in accordance with the operation intention of the driver, the traveling condition, and the like.

Further, the speed reduction mechanism 35 shown in fig. 6 includes: a transmission shaft 36 axially supported in parallel with the motor output shaft 31 and the rear wheel axle 4 a; first gear pairs 37a, 37b provided on the vehicle width direction inner end portion of the motor output shaft 31 and the vehicle width direction inner side portion of the transmission shaft 36, respectively; and second gear pairs 38a, 38b provided on the vehicle width direction outer side portion of the transmission shaft 36 and the left end portion of the rear wheel axle 4a, respectively. Reference numerals 4b to 4d in fig. 6 denote bearings that rotatably support the rear wheel axle 4 a.

The motor output shaft 31, the transmission shaft 36, and the rear wheel axle 4a are arranged in this order from the front side with a space therebetween. The transfer shaft 36 has an axis Ct1 (hereinafter, referred to as "transfer axis Ct 1") parallel to the motor axis Cm 1. Reference numerals 39a and 39b in fig. 6 denote bearings that rotatably support the transmission shaft 36.

The rotation of the motor output shaft 31 is reduced in speed at a predetermined reduction ratio by the configuration of the speed reduction mechanism 35 described above and is transmitted to the rear axle 4 a.

Fig. 9 is a view of the vicinity of the support portion of the swing arm 20 as viewed from below the vehicle. Fig. 10 is a cross-sectional view taken along line X-X of fig. 8, and fig. 11 is a cross-sectional view taken along line XI-XI of fig. 9.

As shown in fig. 8 and these drawings, an arm support member 65 that projects toward the vehicle rear is mounted to a lower region of the rear frame portion 14b in the left and right lower frames 14. A pivot shaft 57 for swingably supporting the front portion of the swing arm 20 is held near the rear end portion of the arm support member 65. The arm support member 65 is formed in a substantially triangular shape in side view with one apex portion sandwiched by two sides projecting toward the vehicle rear side, and its detailed configuration will be described later. The pivot 57 is held near the top portion that protrudes rearward of the vehicle.

As shown in fig. 8 and 10, a battery support stay 66 for supporting the battery storage device 64 is coupled to the vehicle body frame F at a substantially middle position in the vertical direction of each of the left and right rear frame portions 14 b. The battery support stay 66 extends from the rear frame portion 14b toward the vehicle body rear side. Further, a sub stay 67 extending toward the rear upper side is attached to the right and left rear frame portions 14b at a position slightly below the joint portion of the battery support stay 66. The rear end of the sub stay 67 is joined to the rear region of the battery support stay 66 from below.

First and second support brackets 68a and 68b made of a metal plate are attached to lower regions of the left and right rear frame portions 14b and the left and right corresponding sub stays 67. The first support bracket 68a is joined to the vehicle width direction outer region of the rear frame portion 14b and the sub stay 67, and the second support bracket 68b is joined to the vehicle width direction inner region of the rear frame portion 14b and the sub stay 67. As shown in fig. 10, the first support bracket 68a and the second support bracket 68b are separated from each other at upper regions thereof by a predetermined width, and a sleeve 69 is disposed in the separated space. The sleeve 69 is formed by fitting a rubber elastic body, not shown, into a metal tube, and fitting a metal shaft portion 69a to an axial center portion of the rubber elastic body. The shaft portion 69a penetrates the sleeve 69 in the axial direction, and left and right end portions are fastened and fixed to upper regions of the first support bracket 68a and the second support bracket 68 b. An upper support arm 70 extending obliquely downward toward the rear is connected to the outer surface of the sleeve 69. As shown in fig. 10, the upper support arm 70 is formed in a skewed cross-sectional shape of approximately コ, and is inclined inward in the vehicle width direction toward the vehicle body rear side.

Upper support arms 70 integrally coupled to the sleeve 69 are symmetrically provided on both sides in the vehicle width direction of the vehicle. Rear end portions of the left and right upper support arms 70 are coupled to left and right end portions of a connecting rod 71 linearly extending in the vehicle width direction.

The first support bracket 68a and the second support bracket 68b are joined to each other at lower regions thereof below the left and right rear frame portions 14 b. Hereinafter, the joint portion of the lower region is referred to as "lower joint portion of the support brackets 68a, 68 b". Both ends of the lateral frame 51 extending linearly in the vehicle width direction are joined to lower joining portions of the support brackets 68a, 68b on both sides in the vehicle width direction. The lateral frame 51 is formed of a round steel pipe having substantially the same diameter as the rear frame portion 14 b.

A pair of rear extension bars 73 extending toward the vehicle body rear side are coupled to the cross frame 51. The rear extension bar 73 is coupled to the rear side surface of the lateral frame 51 at two positions separated from each other in the left-right direction. A support pipe 74 extending linearly in the vehicle width direction is coupled to a rear end portion of the left and right rear extension bars 73. The pivot 57 is rotatably inserted through the support pipe 74. Both ends of the pivot shaft 57 are supported by the left and right projecting pieces 21b at the front end of the swing arm 20. Therefore, the front end portion of the swing arm 20 is swingably supported by the support pipe 74. In the figure, reference symbol o1 denotes an axis of the pivot 57 along the vehicle width direction.

Further, a connecting rod 71 connected to the rear end portions of the left and right upper support arms 70 is connected to a rear intermediate region of the left and right rear extension rods 73. Therefore, the intermediate region of the left and right rear extension bars 73 is supported by the left and right rear frame portions 14b via the pair of upper support arms 70 extending obliquely upward toward the vehicle body front side. In the present embodiment, the left and right upper support arms 70 constitute a downward inclined portion extending obliquely rearward and downward from the rear frame portion 14 b.

The arm support member 65 of the present embodiment is configured by the lateral frame 51, the rear extension bar 73, the support pipe 74, the upper support arm 70, the connecting bar 71, and the like described above.

Here, a wiring space 75 in which the electric cable 60 is routed is secured above a region spanning the arm support member 65 and the front region of the swing arm 20. The wiring space 75 is a space surrounded by the arm support member 65, the swing arm 20, and the battery storage device 64. As shown in fig. 8 and 11, the upper support arm 70 (lower inclined portion) of the arm support member 65 and the upper inclined portion 58 in the front region of the swing arm 20 form a concave portion 76 having a substantially V-shape in side view. The concave portion 76 constitutes a part of the wiring space 75, and at least a part of the electric cable 60 is wired.

In the left arm main body 21a of the swing arm 20, the electric cable 60 drawn forward from the connection portion connected to the electric motor 30 is bent rightward from a left position in the vehicle width direction near above the left portion of the pivot 57 as shown in fig. 9 to 11, and drawn forward from a right position in the vehicle width direction. The electric cable 60 drawn forward is connected to the power drive unit 63 in the space portion on the front side of the rear frame portion 14 b. The electric cable 60 is disposed in the wiring space 75 so that at least a portion thereof overlaps the axis o1 of the pivot 57 in a plan view, as shown in fig. 9, in a region bent from the left side to the right side in the vehicle width direction at the front portion of the swing arm 20.

Further, a portion of the region of the electric cable 60 that is bent from the left to the right in the vehicle width direction at the front portion side of the swing arm 20 is supported by the lower end of the battery support frame 110 that constitutes the skeleton portion of the battery storage device 64. Specifically, as shown in fig. 9 to 11, a clamp member 130 for holding the electric cable 60 is attached to a portion of the electric cable 60 that extends from left to right across the lower portion of the battery storage device 64, and the clamp member 130 is fastened and fixed to a cable support bracket 131 (cable support portion) provided at the lower end of the battery support frame 110.

Fig. 12 is a view of the battery support frame 110 viewed from the upper left front portion.

As shown in fig. 8, resin case portions 132F and 132R for detachably housing the batteries 62A and 62B are attached to the inside of the battery support frame 110. The resin case portions 132F and 132R are arranged in tandem in the battery support frame 110. Each of the resin case portions 132F and 132R has an insertion/removal opening 136 (see fig. 13 and 15) that opens upward. The battery housing portions in the resin housing portions 132F and 132R are inclined obliquely downward toward the front. The batteries 62A and 62B are disposed inside the resin case portions 132F and 132R by sliding obliquely into the resin case portions 132F and 132R through the insertion/extraction openings 136. The batteries 62A and 62B are inserted into and pulled out of the resin case portions 132F and 132R obliquely, and thereby part of the weight of the batteries 62A and 62B is supported by the wall portions of the resin case portions 132F and 132R.

The batteries 62A and 62B disposed in the resin case portions 132F and 132R are fixed to the resin case portions 132F and 132R and the battery support frame 110 by a lock mechanism 133 (battery fixing means) shown in fig. 8, and terminal portions 41 (see fig. 17) to be described later are connected to the case-side connection terminals 43 (see fig. 17) in the resin case portions 132F and 132R, respectively.

As shown in fig. 12, the battery support frame 110 includes a first support frame 111 that supports the resin case portion 132F (see fig. 8) on the front side, a second support frame 112 that supports the resin case portion 132R (see fig. 8) on the rear side, and a coupling frame 113 that couples the first support frame 111 and the second support frame 112.

The first support frame 111 has: a pair of left and right frame portions 115L and 115R extending slightly obliquely upward and downward in the front-rear direction along the inclined posture of the resin case portion 132F on the front side (see fig. 8); a cross tube 116 connecting the lower ends of the left and right side frame members 115L, 115R to each other; and a front frame 117 connecting both side portions to lower regions of the left and right side frames 115L, 115R. The front frame portion 117 extends in the vehicle width direction in a curved shape protruding forward. The front frame 117 is disposed in a front region of the resin case 132F on the front side.

The left and right side frame members 115L, 115R extend in the longitudinal direction (substantially vertical direction) in a hat-shaped cross section that opens inward in the vehicle width direction. The upper end portions of the side frame portions 115L and 115R are provided with mounting brackets 118 for mounting the battery support frame 110 to a vehicle body frame F (see fig. 8). The mounting bracket 118 is provided with a female screw portion 118a into which a bolt can be screwed. The mounting bracket 118 is fastened and fixed to a fixing bracket 105 (see fig. 8 and the like) provided on the left and right corresponding seat frames 15 in front of the rear frame portion 14b of the vehicle body frame F.

Female screw portions 116a into which bolts can be screwed are provided at both ends of the cross tube 116. The cross tube 116 is coupled with the cable support bracket 131 described above. The electrical cable 60 is held to the cross tube 116 of the battery support frame 110 via a cable support bracket 131. Both end portions of the cross tube 116 are fastened and fixed to fixing brackets 106 (see fig. 8 and the like) provided at the corresponding left and right rear frame portions 14b of the vehicle body frame F.

The second support frame 112 has: a pair of left and right frame portions 121L and 121R extending slightly obliquely upward and downward in the front-rear direction along the inclined posture (see fig. 8) of the resin case portion 132R on the rear side; a cross tube 122 connecting the lower ends of the left and right side frame portions 121L, 121R to each other; and a rear frame portion 123 that couples both side portions to the vertical center regions of the left and right side frame portions 121L, 121R. The rear frame portion 123 extends in the vehicle width direction in a curved shape projecting rearward. The rear frame portion 123 is disposed in a rear region of the resin case portion 132R on the rear side.

The left and right side frame portions 121L, 121R extend in the longitudinal direction (substantially vertical direction) in a hat-shaped cross section that opens inward in the vehicle width direction. The upper end portions of the side frame portions 121L and 121R are provided with mounting brackets 124 for mounting the battery support frame 110 to a vehicle body frame F (see fig. 8). The mounting bracket 124 is provided with a female screw portion 124a into which a bolt can be screwed. The mounting brackets 124 are fastened and fixed to fixing brackets 107 (see fig. 8 and the like) provided on the left and right corresponding support frames 17 of the vehicle body frame F.

The horizontal tube 122 has female screw portions 122a at both ends thereof, into which bolts can be screwed. Both end portions of the cross tube 122 are fastened and fixed to fixing brackets 108 (see fig. 8 and the like) provided at the corresponding left and right battery support stays 66 of the vehicle body frame F.

The coupling frame 113 includes: coupling side frame portions 127L and 127R that couple the side frame portions 115L and 121L and the side frame portions 115R and 121R on the same right and left sides of the first support frame 111 and the second support frame 112; and a coupling lateral frame portion 128 that couples substantially central portions of the left and right coupling side frame portions 127L, 127R in the front-rear direction to each other. A front resin case 132F is disposed on the front side of the connecting lateral frame portion 128, and a rear battery case 132R is disposed on the rear side of the connecting lateral frame portion 128.

< storage Battery storage apparatus >

Fig. 13 and 15 are views of the battery housing device 64 viewed from the front obliquely left upward, and fig. 14 and 16 are views of a part of the battery housing device 64 viewed from the left side. Fig. 13 and 14 show the battery housing device 64 in a non-fixed state of the battery, and fig. 15 and 16 show the battery housing device 64 in a fixed state of the battery. In fig. 14 and 16, the resin case portion 132F is removed for convenience of illustration. Fig. 17 is a cross-sectional view taken along line XVII-XVII in fig. 13.

As shown in fig. 17, the batteries 62A and 62B have terminal portions 41 in recessed portions on the lower surfaces thereof. The terminal portion 41 is disposed on the lower surface of the batteries 62A and 62B near the front portion. The terminal portion 41 is electrically connected to the power drive unit 63 or a control unit, not shown, via a case-side connection terminal 43 provided in the battery storage device 64. The terminal unit 41 supplies the battery voltage to the electric motor 30 via the power drive unit 63 (see fig. 2), and outputs information (such as voltage and temperature) of the batteries 62A and 62B to the control unit.

The battery storage device 64 includes: a battery case 42 for housing the batteries 62A and 62B; a case-side connection terminal 43 of the terminal portion 41 connected to the batteries 62A and 62B when the batteries 62A and 62B are stored; a terminal displacement mechanism 45 that displaces the case-side connection terminal 43 between a connection position P1 (see fig. 17, 25, and 26) at which the case-side connection terminal is connected in contact with the terminal portion 41 of the batteries 62A and 62B and a retracted position P2 spaced downward from the connection position P1; a lock mechanism 133 capable of fixedly holding the batteries 62A and 62B in the battery case 42; and an operating lever 44 (operating member) capable of switching the lock mechanism 133 between a battery fixed state and a battery non-fixed state and operating the terminal displacement mechanism 45.

As shown in fig. 17, the retracted position P2 is a position at which the case-side connection terminal 43 is separated from the terminal portion 41 of the battery 62A (62B) in the direction in which the battery 62A (62B) enters (downward) when the bottom portion 62-B of the battery 62A (62B) abuts against the case-side abutting portion 42-B of the battery case 42.

The battery case 42 has: the aforementioned battery support frame 110; support stays 135 (see fig. 14 and 16) fastened and fixed to upper portions of the front and rear side frames 115L and 115R, 121L, and 121R of the battery support frame 110; and resin case portions 132F and 132R disposed in front and rear of the battery support frame 110. The housing-side connection terminal 43 and the terminal displacement mechanism 45 are disposed on the lower side of the front and rear resin housing portions 132F and 132R, respectively. The operation lever 44 and the lock mechanism 133 are provided corresponding to the case-side connection terminal 43 and the terminal displacement mechanism 45 on the lower side of the front and rear resin case portions 132F and 132R, respectively. The housing-side connection terminal 43, the terminal displacement mechanism 45, the operation lever 44, the lock mechanism 133, and the like corresponding to the front and rear resin housing portions 132F, 132R have the same configuration. Hereinafter, only the configuration corresponding to the front resin case portion 132F will be described in detail, and the configuration corresponding to the rear resin case portion 132R will not be described in detail.

As shown in fig. 17, the terminal portion 41 of the battery 62A (62B) has: a pair of high-voltage terminals 47 for outputting the electric power of the battery 62A (62B) to the power drive unit 63; and a plurality of signal terminals 48 for outputting various information of the battery 62A (62B) to the control unit.

As shown in fig. 13 and 15, the resin case portions 132F and 132R have insertion/removal openings 136 that open upward, and the batteries 62A and 62B can be accommodated in and removed from the insertion/removal openings 136. The front and rear resin case portions 132F and 132R are inclined downward and forward. As shown in fig. 8, the bottom walls of the resin case portions 132F and 132R are inclined rearward and downward.

As shown in fig. 13 and 15, a peripheral wall 137a of the trunk 137 is disposed at an upper portion of the battery support frame 110. The luggage case 137 is a resin case whose case main body is located behind the battery storage device 64 and can store articles therein. A peripheral wall 137a of the trunk 137 extends forward from the trunk body of the trunk 137, and surrounds the left and right sides of the upper sides of the front and rear resin case portions 132F and 132R of the battery housing device 64 and the front of the front resin case portion 132F. The upper portion of the peripheral wall 137a of the luggage compartment 137 is closed by the seat 8 (see fig. 1, 27, and 28) for seating the occupant. The seat 8 can be opened and closed up and down with the front end side serving as a hinge fulcrum. The upper portions of the trunk 137 and the battery storage device 64 are opened and closed by the seat 8.

As shown in fig. 17, an opening 138 that allows insertion and removal of the housing-side connection terminal 43 from below is provided in the bottom wall of the resin housing portion 132F (132R) near the front. The housing-side connection terminal 43 and the terminal support block 139 that integrally supports the housing-side connection terminal 43 are disposed below the opening 138 so as to be able to move up and down.

Fig. 18 is a view of the case-side connection terminal 43 and the support portion thereof as viewed from obliquely above.

As shown in fig. 17 and 18, the case-side connection terminal 43 includes: a pair of high-voltage terminal pins 140 capable of being fitted and connected to the high-voltage terminals 47 on the battery 62A (62B) side; and a plurality of signal terminal pins 141 that can be fitted and connected to the signal terminals 48 on the battery 62A (62B) side. The high-voltage terminal pins 140 and the signal terminal pins 141 are arranged in a row in the lateral direction of the vehicle. The high-voltage terminal pins 140 are disposed on the vehicle width direction outer sides of the plurality of signal terminal pins 141, respectively. The height of the upper end of each high-voltage terminal pin 140 disposed on both sides in the vehicle width direction is higher than the height of the upper end of the signal terminal pin 141. Therefore, when the case-side connection terminal 43 is displaced from the retracted position P2 to the connection position P1 integrally with the terminal support block 139, the high-voltage terminal pin 140 comes into contact with the terminal portion 41 on the battery 62A (62B) side before the signal terminal pin 141.

Further, a cable connecting wall 143 for connecting a power cable 142 (electric wire) to the high-voltage terminal pin 140 and a signal wire connecting portion 145 for connecting a signal wire 144 (electric wire) to the signal terminal pin 141 are provided at the lower end of the terminal support block 139. The cable connecting walls 143 are disposed on the vehicle width direction outer sides of the signal line connecting portions 145. A bolt 146 for connecting the metal wire of the power cable 142 and the high-voltage terminal pin 140 is fastened to the cable connecting wall 143 from the outside in the vehicle width direction. The bolt 146 constitutes a fixing unit that electrically connects and physically and firmly fixes the power cable 142 and the high-voltage terminal pin 140.

As shown in fig. 17, a cable support bracket 201 is attached to the terminal support block 139. The power cable 142 and the signal cable 144 bundled by the clamp 202 are held by the cable support bracket 201. The cable support bracket 201 is supported by a stay, not shown, which is provided to protrude downward from a lower end portion of the terminal support block 139 on the side close to the vehicle width direction. The cable support bracket 201 extends downward from the terminal support block 139 side and is bent in a substantially J shape in the vehicle width direction so as to extend along the drawing direction of the power cable 142 or the signal wire 144. The clamp 202 is supported on the front end side of the curved portion of the cable support bracket 201. The lower end of the cable support bracket 201 and the clamp 202 are located below the cable connecting wall 143 or the signal wire connecting portion 145 of the terminal support block 139.

The cable support bracket 201 partially overlaps with a connection portion connecting the power cable 142 and the high-voltage terminal pin 140 in the vertical direction, and extends downward beyond the connection portion.

The cable support bracket 201 holds cables such as the clamp 202 and the power cable 142 on one side of the plate-shaped portion, and the cable support bracket 201 is chamfered at an outer peripheral corner portion on the side where the cables are disposed. Thus, even if the cables come into contact with the outer peripheral corner portion of the cable support bracket 201, the load acting on the cables can be reduced.

A pair of guide projections 147 as housing-side guide portions are provided so as to project upward and outward of the terminal support block 139 in the vehicle width direction with respect to the housing-side connection terminal 43. The guide projection 147 is formed in a substantially cylindrical shape as a whole, and has a spherical curved surface or a tapered conical surface at its tip end. The left and right guide projections 147 protrude upward from the upper ends of the high-voltage terminal pin 140 and the signal terminal pin 141 of the case-side connection terminal 43.

On the other hand, a pair of guide holes 148 capable of accommodating the left and right guide projections 147 on the terminal support block 139 side are provided on the lower surface of the battery 62A (62B) accommodated in the resin case portion 132F (132R). The guide hole 148 constitutes a battery side guide portion. Here, when the case-side connection terminal 43 is raised toward the connection position P1 (see fig. 17, 25, and 26) in a state where the battery 62A (62B) is housed in the resin case portion 132F (132R), the guide projection 147 is inserted into the guide hole 148 before the case-side connection terminal 43 is brought into contact with and connected to the terminal portion 41 of the battery 62A (62B). In the case of the present embodiment, the guide projection 147 is set such that the separation distance L1 of the contact portion between the guide projection 147 and the guide hole 148 is shorter than the separation distance L2 of the case-side connection terminal 43 and the terminal portion 41 of the battery 62A (62B) when the case-side connection terminal 43 is at the retracted position P2. As shown in fig. 17, the leading end of the guide projection 147 in the battery direction, i.e., the upper end 147e of the guide projection 147 is formed at a position above (battery side) the upper end 140e of the high-voltage terminal pin 140, which is the terminal end of the case-side connection terminal 43 in the battery direction.

The terminal displacement mechanism 45 includes a terminal holding member 149 that holds the housing-side connection terminal 43 via the terminal support block 139. The terminal holding member 149 is made of a metal plate material, and includes a base wall 149a extending in the vehicle width direction, and a pair of left and right connecting walls 149b bent upward from both ends of the base wall 149a in the vehicle width direction and extending therefrom. An insertion hole 150 having a long hole shape is formed in a central region of the base wall 149a in the vehicle width direction. The terminal support block 139 is held on the lower surface side of the base wall 149a via a coupling pin 151 and a spring unit 152. The housing-side connection terminal 43 and a part of the terminal support block 139 held by the base wall 149a protrude above the base wall 149a through the insertion hole 150.

Insertion holes 153 through which the coupling pins 151 are inserted are formed at both edges of the terminal support block 139 in the vehicle width direction. The inner diameter of the insertion hole 153 is formed larger than the outer diameter of the coupling pin 151. The terminal support block 139 is displaceable in a substantially horizontal direction (a direction intersecting a connection direction with respect to the terminal portion 41) within a range of a gap between the insertion hole 153 and the coupling pin 151. Therefore, the housing-side connection terminal 43 supported by the terminal support block 139 is held by the terminal holding member 149 so as to be relatively displaceable in a direction intersecting the connection direction with respect to the terminal portion 41.

The coupling pin 151 is slidably inserted into a support hole 198 provided in the base wall 149a of the terminal holding member 149. A retaining flange 151a is integrally provided at an upper end of the connecting pin 151. The connecting pin 151 is prevented from coming off the base wall 149a by the retaining flange 151a coming into contact with the upper surface of the base wall 149 a.

The spring unit 152 has: a bottomed cylindrical metal unit case 154; a disc-shaped stopper plate 155 that can abut on the open end of the unit case 154; and a coil spring 156 as an elastic member interposed between the inner bottom surface of the unit case 154 and the stopper plate 155. The spring unit 152 is disposed below the base wall 149a in a state where the outer bottom surface of the unit case 154 is in contact with the lower surface of the base wall 149 a. The coupling pin 151 penetrates the bottom wall of the unit case 154 and is coupled to the stopper plate 155 below the unit case 154. The coil spring 156 is disposed in a peripheral region of the coupling pin 151.

The housing-side connection terminal 43 and the terminal support block 139 are suspended and supported by the terminal holding member 149 via the spring unit 152 and the coupling pin 151. The unit case 154 and the stopper plate 155 are maintained in a separated state until a pressing load equal to or greater than a predetermined value is input to the case side connection terminal 43 from above. When a pressing load of a predetermined value or more is input to the case-side connection terminal 43 from this state, the terminal support block 139 displaces downward relative to the terminal holding member 149 while compressing and displacing the coil spring 156. When the terminal support block 139 is relatively displaced by a predetermined amount or more with respect to the terminal holding member 149 in this way, the stopper plate 155 abuts on the unit case 154, thereby restricting the relative displacement of the terminal support block 139 (the case-side connection terminal 43) with respect to the terminal holding member 149 (see fig. 26).

The unit case 154 of the spring unit 152 is disposed on the vehicle width direction outer side of the head of the bolt 146 that fastens and fixes the power cable 142 to the high-voltage terminal pin 140 (the outer side in the screwing direction of the bolt 146). In the case of the present embodiment, the unit case 154 constitutes a shielding portion disposed outside the bolt 146 as a fixing portion.

Although not shown in the drawings, a part of the peripheral region of the terminal displacement mechanism 45 is covered with a cover member made of nonconductive rubber or resin. As described above, since the peripheral region of the terminal displacement mechanism 45 is covered with the cover member, the portion of the housing-side connection terminal 43 including the bolt 146 is difficult to be seen from the outside, and the approach to the bolt is also difficult.

The left and right connecting walls 149b of the terminal holding member 149 are rotatably held at the lower end of the metal link plate 157 in the lower region outside the side portion of the resin case portion 132F (132R). The link plate 157 is a plate member that is long in one direction extending in a substantially vertical direction. The upper end portions of the left and right link plates 157 are rotatably coupled to the distal ends of the left and right lever pieces 44a of the operating lever 44 as an operating member. The intermediate region in the extending direction of the left and right rod pieces 44a is pivotally supported by the left and right support stays 135 attached to the battery support frame 110. The left and right link plates 157 are pulled upward by the operating lever 44 being rotationally operated in one direction (clockwise direction in fig. 14 and 16), and thereby the left and right connecting walls 149b of the terminal holding member 149 are displaced upward. At this time, the case-side connection terminal 43 held by the terminal holding member 149 is displaced from the retreat position P2 to the connection position P1.

Reference numeral 197 in fig. 14 and 16 denotes a reinforcing frame which is attached to the vicinity of the lower ends of the left and right support stays 135 and which reinforces the peripheral region of the resin case portion 132F (132R).

As shown in fig. 17, the lower ends of the left and right link plates 157 and the left and right connecting walls 149b of the terminal holding member 149 are connected by inserting the rotation pin 158 into the long hole 159. The pivot pin 158 is supported by the left and right connecting walls 149b, and the long hole 159 is formed in the link plate 157. Therefore, when the link plate 157 is pulled upward by the operation of the operating lever 44, the pivot pin 158 moves a predetermined stroke amount of the link plate 157 within the long hole 159 as shown in (I) and (II) of fig. 17 (b). As a result, the timing at which the terminal holding member 149 starts to displace upward is delayed with respect to the start of the operation lever 44.

Fig. 17 (b) is a diagram showing an operating state of the section E in fig. 17 (a).

The lock mechanism 133 for fixing the battery 62A (62B) to the battery case 42 includes a movable block 160. The movable block 160 is attached to the upper end portions of the left and right support stays 135 of the battery case 42 so as to be rotatable (displaceable). When the operation lever 44 is rotated from the initial position to the predetermined position range, the movable block 160 receives an operation force from the operation lever 44 and rotates in the upper surface direction of the battery case 42. The movable block 160 is pressed against the upper surface of the battery 62A (62B), and regulates displacement in the direction in which the battery 62A (62B) comes off.

Fig. 19 is a view of the operating lever 44 and the movable block 160 as viewed from the upper right front of the left support stay 135.

The operating lever 44 is supported by the support stay 135 so as to be rotatable about the first rotation axis 162. The first rotation shaft 162 is a shaft that is pivotally supported at a front portion near the substantially center of the support stay 135 in the vertical direction, and is disposed along the vehicle width direction. In some of the drawings, only the axial center o1 of the first rotating shaft 162 is shown.

The movable block 160 of the lock mechanism 133 is supported by the support stay 135 so as to be rotatable about a second rotation shaft 163 perpendicular to the first rotation shaft 162. The second pivot shaft 163 is a shaft pivotally supported by the upper end of the support stay 135, and is disposed along the front-rear direction of the vehicle.

In the present embodiment, the first rotating shaft 162 is disposed such that the axis o1 of the first rotating shaft 162 overlaps the battery 62A (62B) housed in the resin case portion 132F (132R) (see fig. 20 c, 22 c, 24 c, and the like). The second pivot shaft 163 is disposed such that the axis o2 of the second pivot shaft 163 is located outside the battery 62A (62B) housed in the resin case 132F (132R) (see fig. 20 c, 22 c, 24 c, and the like).

The operating lever 44 includes an operating piece 44b extending in the vehicle width direction and left and right lever pieces 44a extending from both ends of the operating piece 44b so as to be bent in a substantially orthogonal direction. The middle region in the extending direction of the left and right lever pieces 44a is supported by the left and right support stays 135 via the first rotation shaft 162. The left and right lever pieces 44a are formed in a substantially L shape (a substantially L shape with the front end portion protruding forward) in a side view. Hereinafter, the side of the operation piece 44b with the bent portion of the lever piece 44a interposed therebetween is referred to as a first protruding portion 44a-1, and the opposite side of the operation piece 44b with the bent portion interposed therebetween is referred to as a second protruding piece 44 a-2. The substantially middle position in the extending direction of the second extending piece 44a-2 of the left and right lever pieces 44a is supported by the support stay 135 via the first rotation shaft 162. The upper end of the link plate 157 is rotatably coupled to the distal end of the second projecting piece 44a-2 via a coupling pin 164.

Here, as shown in fig. 19, the movable block 160 of the lock mechanism 133 includes a pivot portion 160a, a displacement restricting wall 160b (battery restricting portion), an elastic block 160c (battery restricting portion), a holding force receiving wall 160d (holding force receiving portion), and a cam wall 160 e. The pivot support portion 160a is rotatably supported by the second rotation shaft 163. The displacement restricting wall 160B is provided continuously to the pivot portion 160a, and can restrict displacement of the battery 62A (62B) in the floating direction when moving to the inner region of the resin case portion 132F (132R). The elastic block 160c is attached to one surface of the displacement restricting wall 160B, and when the displacement restricting wall 160B restricts the displacement of the battery 62A (62B) in the floating direction, the elastic block 160c directly abuts on the upper surface of the battery 62A. At this time, the elastic block 160c is elastically deformed, and a repulsive force acts on the upper surface of the battery 62A.

The displacement restricting wall 160B of the movable block 160 and the elastic block 160c (battery restricting portion) are configured to be positioned outside the batteries 62A and 62B in the battery unfixed state (see fig. 20 c) and to overlap the batteries 62A and 62B in the battery fixed state (see fig. 22 c and 24 c) when viewed in the insertion direction in which the batteries 62A and 62B are inserted into the resin housing portion 132F (132R).

The retaining force receiving wall 160d is provided continuously to the pivot support portion 160a, and extends in a direction substantially perpendicular to the displacement restricting wall 160b about the second rotation shaft 163. The holding force receiving wall 160d receives the holding load from the rod piece 44a of the operating rod 44, and maintains the state in which the displacement restricting wall 160B and the elastic block 160c restrict the displacement of the battery 62A (62B) in the floating direction. The cam wall 160e is a wall connecting the displacement restricting wall 160b and the holding force receiving wall 160d on the front side thereof, and has a cam surface 160e-1 smoothly continuous from the displacement restricting wall 160b side toward the back surface 160d-1 (holding force receiving surface) of the holding force receiving wall 160 d.

In the present embodiment, the holding force receiving wall 160d (holding force receiving portion) is configured to overlap the lever piece 44a of the operation lever 44 in the battery fixed state when viewed along the first rotation axis 162 (see fig. 19).

The movable block 160 of the lock mechanism 133 is rotatable by the rotational operation of the operating lever 44 between a lock release position where the displacement restricting wall 160b and the elastic block 160c are lifted upward and a lock position where the displacement restricting wall 160b and the elastic block 160c are tilted by substantially 90 ° in the inward direction of the resin case portion 132F (132R). The lock mechanism 133 is in a battery non-fixed state when the displacement restricting wall 160b and the elastic block 160c are in the unlocked position, and is in a battery fixed state when the displacement restricting wall 160b and the elastic block 160c are in the locked position. Each movable block 160 is constantly biased in the lifting direction by a spring not shown.

When the operation lever 44 is tilted to the maximum extent forward in the battery non-fixed state, the operation piece 44b of the operation lever 44 is displaced forward from the insertion/extraction port 136 (inner wall) of the resin housing portion 132F (132R). The position of the operating lever 44 at this time is referred to as an initial position. Then, in the battery fixed state, the operation lever 44 is pulled up to the rear upper side, and at this time, the operation piece 44b of the operation lever 44 is displaced to the upper position of the insertion/extraction opening 136 of the resin housing portion 132F (132R).

Further, a cam protrusion 165 bulging rearward is formed on the first projecting portion 44a-1 of the lever piece 44a of the operating lever 44. When the operating lever 44 is pulled up to the upper rear side from the initial position, the cam projection 165 abuts against the cam surface 160e-1 of the movable block 160 in the lifted state, and presses the movable block 160 in the rotational direction while sliding in contact with the cam surface 160 e-1. Thereby, the movable block 160 is rotationally operated from the unlock position toward the lock position. When the pulling-up operation of the operating lever 44 advances and the contact portion of the cam protrusion 165 reaches the end position of the cam surface 160e-1, the inner surface (the surface facing the inside in the vehicle width direction) of the lever piece 44a abuts against the back surface 160d-1 of the holding force receiving wall 160d of the movable block 160. This state continues until the operating lever 44 reaches the maximum pull-up operating position.

However, the locking mechanism 133 and the terminal displacement mechanism 45 are operated by the common operation lever 44. The respective operation states of the lock mechanism 133 and the terminal displacement mechanism 45 are determined by the rotational operation position of the operation lever 44. The terminal displacement mechanism 45 and the lock mechanism 133 cooperate with each other so that the lock mechanism 133 fixes the battery 62A (62B) by the operation based on the operation lever 44, in which state the terminal displacement mechanism 45 displaces the case-side connection terminal 43 to the connection position P1.

Next, a series of operations of inserting the battery 62A (62B) into the resin case portion 132F (132R), fixing the battery 62A (62B) to the resin case portion 132F (132R), and connecting the case-side connection terminal 43 to the terminal portion 41 of the battery 62A (62B) will be described with reference to fig. 20 to 26.

In the state shown in fig. 20, the operating lever 44 is at an initial position where it is tilted forward to the maximum extent. At this time, the tip end portion of the lever piece 44a of the operating lever 44 is positioned at the lowermost position, and the link plate 157 and the terminal holding member 149 of the terminal displacement mechanism 45 are also displaced to the lowermost position. In this state, the battery 62A (62B) is inserted into the resin case 132F (132R). At this time, the case-side connection terminal 43 is located at the retracted position P2 as shown in fig. 17. The movable block 160 of the lock mechanism 133 is located at an unlock position where it is lifted upward.

When the operation lever 44 is pulled up from this state, as shown in fig. 21, the cam projection 165 of the operation lever 44 abuts against the cam surface 160e-1 of the movable block 160 and rotates the movable block 160 in the lock position direction while sliding in contact with the cam surface 160 e-1.

At the beginning of the operation of the operating lever 44, the link plate 157 is pulled up by the lever piece 44a, but because there is a play between the link plate 157 and the terminal holding member 149 due to the long hole 159 as described above, the start of the upward displacement of the terminal holding member 149 at this time is delayed.

When the pulling operation of the operating lever 44 advances, as shown in fig. 22, the rotation of the movable block 160 advances, and the elastic block 160c of the movable block 160 abuts on the upper surface of the battery 62A. At this time, the terminal holding member 149 of the terminal displacement mechanism 45 is displaced upward by the pulling up of the operating lever 44 via the link plate 157. At this time, as shown in fig. 23, the guide projection 147 of the terminal support block 139 is fitted into the guide hole 148 on the lower surface side of the battery 62A (62B), thereby finely adjusting the positions of the terminal support block 139 and the case-side connection terminal 43 in the direction intersecting the terminal connection direction.

When the pulling-up operation of the operating lever 44 further advances, as shown in fig. 24, the lever piece 44a of the operating lever 44 is wound around the back surface side of the holding force receiving wall 160d of the movable block 160 and abuts against it. Thereby, the displacement restricting wall 160B of the movable block 160 rotates to a predetermined displacement restricting position, and the displacement of the battery 62A (62B) in the floating direction is restricted via the elastic block 160 c. At this time, as shown in fig. 25, the terminal holding member 149 of the terminal displacement mechanism 45 is further raised by the pull-up by the operating lever 44 via the link plate 157, and the case-side connection terminal 43 is displaced to the connection position P1. Thus, the case-side connection terminal 43 is fitted and connected to the terminal portion 41 of the battery 62A (62B).

When the operation lever 44 is further operated by a predetermined amount in the pull-up direction from the state shown in fig. 24, the terminal holding member 149 is further displaced upward in the terminal displacement mechanism 45 as shown in fig. 26. At this time, the coil spring 156 of the spring unit 152 is compressed, and the case-side connection terminal 43 is pressed against the terminal portion 41 of the battery 62A (62B) with a predetermined load. Thereby, the locking of the battery 62A (62B) by the locking mechanism 133 and the terminal connection by the terminal displacement mechanism 45 are completed.

In the present embodiment, a mechanism is provided at an arbitrary position in the battery storage device 64, which generates a click sound such as a hitting sound when the operation lever 44 is operated to the operation completion position to notify the operator of the completion of the operation.

Fig. 27 is a partial sectional side view showing the battery storage device 64 and the seat 8 in a state before the operation of the operation lever 44 is completed. Fig. 28 is a partially sectional side view showing the battery storage device 64 and the seat 8 when the operation lever 44 is in the operation completed state.

As shown in these figures, the seat 8 has a hinge shaft 170 at a front end portion side thereof in the vehicle width direction, and is supported by the vehicle body so as to be rotatable about the hinge shaft 170. A pair of projections 171A and 171B are provided on the back surface of the seat 8 so as to be spaced apart from each other. The projections 171A and 171B project downward from the back surface of the seat 8. The pair of projections 171A, 171B are provided such that, when the operating levers 44 in the front and rear of the battery storage device 64 are fully operated to the operation completion position, the pair of projections 171A, 171B enter the space in front of each operating lever 44 without coming into contact with the operating lever 44, as shown in fig. 28. The pair of projections 171A and 171B are set such that, when the operation lever 44 before and after the battery storage device 64 is operated is in a state before completion of the operation, the pair of projections 171A and 171B abut on the upper surface of the operation piece 44B of the operation lever 44, as shown in fig. 27. Thus, when either of the operation levers 44 is not fully operated to the operation completion position, the occlusion of the seat 8 is hindered by the protrusion 117A or 117B. Therefore, the operator can be notified that the operation lever 44 has not reached the operation completion position.

Further, depending on the position of the operating lever 44, the operating lever 44 can be pushed into the operation completion position by the projections 171A and 171B coming into contact with the upper surface of the operating piece 44B of the operating lever 44 during the closing operation of the seat 8.

In the present embodiment, when the front and rear operating levers 44 are in the initial positions, the projections 117A and 117B on the seat 8 side are set to enter the space on the rear side of the operating levers 44 without coming into contact with the operating levers 44.

As described above, the battery housing device 64 according to the present embodiment can connect the case-side connection terminal 43 to the terminal portion 41 of the batteries 62A and 62B by positioning the case-side connection terminal 43 at the retreat position P2 before inserting the batteries 62A and 62B into the battery case 42 ( resin case portions 132F and 132R) and displacing the case-side connection terminal 43 to the connection position P1 after completing the insertion of the batteries 62A and 62B. Therefore, regardless of the insertion behavior of the batteries 62A and 62B by the operator, it is possible to avoid a large load from being applied to the terminal portions 41 of the batteries 62A and 62B and the case-side connection terminals 43.

In addition, the battery housing device 64 of the present embodiment connects the high-voltage terminal pin 140 to the power cable 142 at the end of the housing-side connection terminal 43 in the arrangement direction of the terminal pins, and the connection state thereof is maintained by the bolt 146 as the fixing means. Therefore, even if the case-side connection terminal 43 is lifted by the operation of the operation lever 44 or the like, the connection state of the power cable 142 can be stably maintained. In addition, in the battery housing device 64 of the present embodiment, since the high-voltage terminal pin 140 is disposed at the end of the housing-side connection terminal 43 in the direction of arrangement of the terminal pins, the work of fixing the bolt 146 to the power cable 142 can be easily performed.

In the battery housing device 64 of the present embodiment, a unit case 154 serving also as a shielding portion is disposed on the outside in the vehicle width direction of the bolt to which the power cable 142 is connected. Therefore, it is possible to prevent tools and the like from hitting the bolt 146 as the fixing means from the outside due to mischief, carelessness, or the like.

In particular, when the fixing means is constituted by the bolt 146 screwed from the outside in the arrangement direction of the terminal pins of the case-side connection terminal 43 as in the present embodiment, the head of the bolt 146 is easily operated by a tool such as a driver due to mischief, carelessness, or the like, but the tool such as a driver can be prevented from coming into contact with the head of the bolt 146 by the unit case 154.

In the battery housing device 64 of the present embodiment, the unit case 154 as a shielding portion is integrally provided to the terminal holding member 149 of the terminal displacement mechanism 45. Therefore, when the housing-side connection terminal 43 is lifted and lowered integrally with the terminal holding member 149 by the operation of the terminal displacement mechanism 45, the unit housing 154 is also lifted and lowered integrally with the terminal holding member 149. Therefore, when this configuration is adopted, the vehicle width direction outer portion of bolt 146 can be covered by unit case 154 in the same manner even when case-side connection terminal 43 is stopped at any position between retracted position P2 and connection position P1.

In the battery housing device 64 of the present embodiment, the cable support bracket 201 that supports the power cable 142 and the signal line 144 is integrally provided to the terminal holding member 149 of the terminal displacement mechanism 45. Therefore, when the housing-side connection terminal 43 and the terminal holding member 149 are integrally lifted and lowered by the operation of the terminal displacement mechanism 45, the cables supported by the cable support bracket 201 are also integrally lifted and lowered. Therefore, in the case of this configuration, when the case-side connection terminal 43 is lifted, the load acting on the connection portion between the cables and the case-side connection terminal 43 can be reduced.

In the battery housing device 64 of the present embodiment, the cable support bracket 201 partially overlaps with the connection portion between the power cable 142 and the high-voltage terminal pin 140 in the vertical direction, and extends downward beyond the connection portion. Therefore, when the terminal holding member 149 is lowered by an operation of the operation lever 44 or the like, the cable support bracket 201 can prevent the connection portion between the power cable 142 and the high-voltage terminal pin 140 from interfering with surrounding members.

The present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention. For example, in the above-described embodiment, the fastening by the bolt 146 is adopted as the fixing means for connecting the power cable 142 to the high-voltage terminal pin 140 and maintaining the connection state of the both, but the fixing means is not limited thereto, and may be solder fixing or the like.

The vehicle using the battery storage device of the present invention is not limited to a motorcycle, and includes a saddle-ride type three-wheeled vehicle having two front wheels and one rear wheel, a four-wheeled vehicle, and the like.

Description of the symbols

1 Motor bicycle (vehicle)

41 terminal part

42 accumulator casing

43 case-side connection terminal

45 terminal displacement mechanism

62A, 62B accumulator

64 storage battery storage device

133 locking mechanism

140 high-voltage terminal pin (terminal pin)

141 signal terminal pin (terminal pin)

142 electric power cable

146 bolt (fixed unit)

154 Unit casing (Shielding part)

201 Cable support bracket

P1 connection position

P2 back-off position

Claims (5)

1. A battery storage device for a vehicle, comprising:

a battery case (42) that houses batteries (62A, 62B); and

a case-side connection terminal (43) connected to a terminal portion (41) of the storage batteries (62A, 62B) housed in the storage battery case (42),

it is characterized in that the preparation method is characterized in that,

the battery storage device for a vehicle is provided with a terminal displacement mechanism (45), wherein the terminal displacement mechanism (45) displaces the shell side connecting terminal (43) between a connecting position (P1) connected with the terminal parts (41) of the batteries (62A, 62B) in a contact way and a retreating position (P2) separated from the connecting position (P1),

the case-side connection terminal (43) is configured by laterally arranging a plurality of terminal pins (140, 141) in a row,

among the plurality of terminal pins (140, 141), a high-voltage terminal pin (140) is disposed at an end in the arrangement direction of the plurality of terminal pins (140, 141), a power cable (142) is connected to the high-voltage terminal pin (140), and a connection state is maintained by a fixing means (146),

a shielding part (154) is arranged outside the fixing unit (146), the shielding part (154) is another member different from a cover member covering the surrounding area of the terminal displacement mechanism (45),

the case-side connection terminal (43) is supported by a terminal support block (139),

a spring unit (152) including the shielding part (154) is provided on the bottom surface of the terminal support block (139),

the shielding part (154) is lifted and lowered corresponding to the lifting and lowering of the shell side connecting terminal (43),

when the case-side connection terminal (43) is located at either one of the connection position (P1) and the retracted position (P2), the shielding part (154) covers the fixing means (146).

2. The battery housing apparatus for a vehicle according to claim 1,

the spring unit (152) has a stopper plate (155) that restricts the displacement of the terminal support block (139).

3. A battery storage device for a vehicle, comprising:

a battery case (42) that houses batteries (62A, 62B); and

a case-side connection terminal (43) connected to a terminal portion (41) of the storage batteries (62A, 62B) housed in the storage battery case (42),

it is characterized in that the preparation method is characterized in that,

the battery storage device for a vehicle is provided with a terminal displacement mechanism (45), wherein the terminal displacement mechanism (45) displaces the shell side connecting terminal (43) between a connecting position (P1) connected with the terminal parts (41) of the batteries (62A, 62B) in a contact way and a retreating position (P2) separated from the connecting position (P1),

the case-side connection terminal (43) is configured by laterally arranging a plurality of terminal pins (140, 141) in a row,

among the plurality of terminal pins (140, 141), a high-voltage terminal pin (140) is disposed at an end in the arrangement direction of the plurality of terminal pins (140, 141), a power cable (142) is connected to the high-voltage terminal pin (140), and a connection state is maintained by a fixing means (146),

a shielding part (154) is arranged outside the fixing unit (146), the shielding part (154) is another member different from a cover member covering the surrounding area of the terminal displacement mechanism (45),

the terminal displacement mechanism (45) has a terminal holding member (149) for holding and lifting the housing-side connection terminal (43),

the shielding part (154) is integrally provided to the terminal holding member (149),

when the housing-side connection terminal (43) and the terminal holding member (149) are lifted integrally, the shielding part (154) is also lifted integrally with the terminal holding member (149),

when the case-side connection terminal (43) is located at either one of the connection position (P1) and the retracted position (P2), the shielding part (154) covers the fixing means (146).

4. The battery housing apparatus of a vehicle according to any one of claims 1 to 3,

the fixing means is constituted by a bolt screwed from the outside in the arrangement direction of the terminal pins (140, 141), and the shielding part (154) is disposed outside in the screwing direction of the bolt.

5. A battery storage device for a vehicle, comprising:

a battery case (42) that houses batteries (62A, 62B); and

a case-side connection terminal (43) connected to a terminal portion (41) of the storage batteries (62A, 62B) housed in the storage battery case (42),

it is characterized in that the preparation method is characterized in that,

the battery storage device for a vehicle is provided with a terminal displacement mechanism (45), wherein the terminal displacement mechanism (45) displaces the shell side connecting terminal (43) between a connecting position (P1) connected with the terminal parts (41) of the batteries (62A, 62B) in a contact way and a retreating position (P2) separated from the connecting position (P1),

the case-side connection terminal (43) is configured by laterally arranging a plurality of terminal pins (140, 141) in a row,

among the plurality of terminal pins (140, 141), a high-voltage terminal pin (140) is disposed at an end in the arrangement direction of the plurality of terminal pins (140, 141), a power cable (142) is connected to the high-voltage terminal pin (140), and a connection state is maintained by a fixing means (146),

the terminal displacement mechanism (45) has a terminal holding member (149) for holding and lifting the housing-side connection terminal (43),

a plurality of cables including the power cables (142) connected to a plurality of high-voltage terminal pins (140) are supported on a cable support bracket (201) provided integrally with the terminal holding member (149),

the cable support bracket (201) partially overlaps with a connection part between the power cable (142) and the high-voltage terminal pin (140) in the vertical direction and extends downward from the connection part,

the fixing means is constituted by a bolt screwed from the outside in the arrangement direction of the terminal pins (140, 141), a shielding part (154) is arranged outside in the screwing direction of the bolt, the shielding part (154) is another member different from a cover member covering the peripheral region of the terminal displacement mechanism (45),

when the case-side connection terminal (43) and the terminal holding member (149) are lifted integrally, the plurality of cables supported by the cable support bracket (201) are also lifted integrally,

when the housing-side connection terminal (43) and the terminal holding member (149) are lifted integrally, the shielding part (154) is also lifted integrally with the terminal holding member (149),

when the case-side connection terminal (43) is located at either one of the connection position (P1) and the retracted position (P2), the shielding part (154) covers the fixing means (146).

Images